92 results on '"C, Durant"'
Search Results
2. Outpatient hospitalist-run procedure service bridges the gap in oncology care.
- Author
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Ghanem G, Tsai HHC, Durant C, Feigenbaum GS, and Glaeser AM
- Subjects
- Humans, Male, Female, Retrospective Studies, Middle Aged, Aged, Adult, Hospitalists, Outpatients
- Abstract
Hospitalist-run procedure teams enable expedited care in the inpatient setting. However, wait times for outpatient interventional radiology (IR) are long at our institution. Our study thus aims to compare the safety and wait times between procedural teams and IR placement of outpatient temporary hemodialysis catheters (THDC) for patients undergoing Chimeric antigen receptor T-cell (CAR-T) therapy apheresis. A retrospective chart review was conducted on all patients receiving outpatient THDC for CAR-T therapy from August 2019 until November 2022. During our study period, only 7 of the central lines were placed by IR, while 75 were placed by the procedure service. The average wait time from CAR-T consenting to procedure was 8.9 days for the procedure service and 14.7 days for IR. The 30 day minor complication rate was low - 2.7% in the procedure group, and 0% in the IR group. No major complications were noted in either group., Competing Interests: Declaration of Competing Interest The authors declare no associated conflict of interest for this publication., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2024
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3. "The worst thing is lying in bed thinking 'I want a cigarette'" a qualitative exploration of smoker's and ex-smoker's perceptions of sleep during a quit attempt and the use of cognitive behavioural therapy for insomnia to aid cessation.
- Author
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Matthews JA, Carlisle VR, Walker R, Dennie EJ, Durant C, McConville R, Isotalus HK, and Attwood AS
- Subjects
- Humans, Male, Female, Middle Aged, Adult, Smokers psychology, Sleep physiology, Sleep Quality, Qualitative Research, Cognitive Behavioral Therapy methods, Smoking Cessation psychology, Smoking Cessation methods, Sleep Initiation and Maintenance Disorders therapy, Sleep Initiation and Maintenance Disorders psychology
- Abstract
Smokers report poorer sleep quality than non-smokers and sleep quality deteriorates further during cessation, increasing risk of smoking relapse. Despite the use of cognitive behavioural therapy for insomnia (CBT-I) to aid quit attempts emerging in the area, little is known about smokers and ex smoker's experiences of sleep during a quit attempt or their perceptions of CBT-I. This study addresses this gap by exploring smoker's and ex-smoker's experiences of the link between smoking and sleep and how this may change as a function of smoking/smoking abstinence. It also explores views of traditional CBT-I components (i.e., perceived feasibility, effectiveness, barriers of use). We conducted semi-structured interviews with current and recently quit smokers (n = 17) between January and September 2022. The framework method was used for analysis. Four themes addressing research questions were described. These included: 1) A viscous cycle; poor sleep quality and negative psychological state during cessation; 2) Perceived engagement and effectiveness; the importance of feasibility, experience, value, identity and psychological state in assessing CBT-I as a cessation tool; 3) Striking a balance; tailoring CBT-I to reduce psychological overload in a time of lifestyle transition; and 4) Personalisation and digital delivery helping overcome psychological barriers during cessation. The analysis suggested during quit attempts smokers experienced a range of sleep problems that could increase risk of relapse due to a negative impact on psychological state. It also revealed participants thought that CBT-I is something they would use during a quit attempt but suggested changes and additions that would improve engagement and be better tailored to quitting smokers. Key additions included the integration of smoking-based cognitive restructuring, starting the intervention prior to a quit attempt, and the need for personalisation and tailoring., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Matthews et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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4. Single-cell profiling of CD11c+ B cells in atherosclerosis.
- Author
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Pattarabanjird T, Srikakulapu P, Ransegnola B, Marshall MA, Ghosheh Y, Gulati R, Durant C, Drago F, Taylor AM, Ley K, and McNamara CA
- Subjects
- Humans, Animals, Mice, Aging, Aorta, Plaque, Atherosclerotic, Atherosclerosis, Coronary Artery Disease
- Abstract
Circulating CD11c+ B cells, a novel subset of activated B cells, have been linked to autoimmunity and shown to expand with age. Atherosclerosis is an age-associated disease that involves innate and adaptive immune responses to modified self-antigens. Yet, the expression of CD11c on specific B-cell subtypes and its link to atherosclerosis are poorly understood. In this study, we characterized the frequency of CD11c+ B cells in tissues in mice with aging. We observed an age-associated increase in CD11c+ B cells in the spleen and bone marrow of ApoE
-/- mice, and this was associated with an increase in aortic plaque. In addition, we also utilized single-cell multi-omics profiling of 60 human subjects undergoing advanced imaging for coronary artery disease (CAD) to subtype CD11c+ B cells and determine their frequency in subjects with high and low severity of CAD. Using unsupervised clustering, we identified four distinct clusters of CD11c+ B cells, which include CD27 and IgD double negative 2 (DN2), age-associated (ABC), CD11c+ unswitched memory (USWM), and activated Naïve (aNav) B cells. We observed an increase in the frequency of both ABC B cells and DN2 B cells in patients with high CAD severity. Pathway analysis further demonstrated augmentation of autophagy, IFNg signaling, and TLR signaling in DN2 cells in high-severity CAD patients. On the other hand, an increase in the negative regulator of BCR signaling through CD72 was found in ABC cells in low-severity CAD patients. Through investigating scRNAseq of atheroma, these DN2 cells were also found to infiltrate human coronary atheroma., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Pattarabanjird, Srikakulapu, Ransegnola, Marshall, Ghosheh, Gulati, Durant, Drago, Taylor, Ley and McNamara.)- Published
- 2024
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5. Ultradian hydrocortisone replacement alters neuronal processing, emotional ambiguity, affect and fatigue in adrenal insufficiency: The PULSES trial.
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Russell G, Kalafatakis K, Durant C, Marchant N, Thakrar J, Thirard R, King J, Bowles J, Upton T, Thai NJ, Brooks JCW, Wilson A, Phillips K, Ferguson S, Grabski M, Rogers CA, Lampros T, Wilson S, Harmer C, Munafo M, and Lightman SL
- Subjects
- Humans, Fatigue, Glucocorticoids adverse effects, Quality of Life, Ultradian Rhythm, Feasibility Studies, Adrenal Insufficiency drug therapy, Hydrocortisone adverse effects
- Abstract
Background: Primary adrenal insufficiency (PAI) mortality and morbidity remain unacceptably high, possibly arising as glucocorticoid replacement does not replicate natural physiology. A pulsatile subcutaneous pump can closely replicate cortisol's circadian and ultradian rhythm., Objectives: To assess the effect of pump therapy on quality of life, mood, functional neuroimaging, behavioural/cognitive responses, sleep and metabolism., Methods: A 6-week randomised, crossover, double-blinded and placebo-controlled feasibility study of usual dose hydrocortisone in PAI administered as either pulsed subcutaneous or standard care in Bristol, United Kingdom (ISRCTN67193733). Participants were stratified by adrenal insufficiency type. All participants who received study drugs are included in the analysis. The primary outcome, the facial expression recognition task (FERT), occurred at week 6., Results: Between December 2014 and 2017, 22 participants were recruited - 20 completed both arms, and 21 were analysed. The pump was well-tolerated. No change was seen in the FERT primary outcome; however, there were subjective improvements in fatigue and mood. Additionally, functional magnetic resonance imaging revealed differential neural processing to emotional cues and visual stimulation. Region of interest analysis identified the left amygdala and insula, key glucocorticoid-sensitive regions involved in emotional ambiguity. FERT post hoc analysis confirmed this response. There were four serious adverse events (AE): three intercurrent illnesses requiring hospitalisation (1/3, 33.3% pump) and a planned procedure (1/1, 100% pump). There was a small number of expected AEs: infusion site bruising/itching (3/5, 60% pump), intercurrent illness requiring extra (3/7, 42% pump) and no extra (4/6, 66% pump) steroid., Conclusions: These findings support the administration of hormone therapy that mimics physiology., (© 2023 The Authors. Journal of Internal Medicine published by John Wiley & Sons Ltd on behalf of Association for Publication of The Journal of Internal Medicine.)
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- 2024
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6. Author Correction: Human circulating CD24 hi marginal zone B cells produce IgM targeting atherogenic antigens and confer protection from vascular disease.
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Pattarabanjird T, Nguyen AT, McSkimming C, Dinh HQ, Marshall MA, Ghosheh Y, Gulati R, Durant C, Vallejo J, Saigusa R, Drago F, Guy TV, Premo K, Taylor AM, Paul S, Kundu B, Berr S, Gonen A, Tsimikas S, Miller Y, Pillai S, Ley K, Hedrick CC, and McNamara CA
- Published
- 2023
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7. Human circulating CD24 hi marginal zone B cells produce IgM targeting atherogenic antigens and confer protection from vascular disease.
- Author
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Pattarabanjird T, Nguyen AT, McSkimming C, Dinh HQ, Marshall MA, Ghosheh Y, Gulati R, Durant C, Vallejo J, Saigusa R, Drago F, Guy TV, Premo K, Taylor AM, Paul S, Kundu B, Berr S, Gonen A, Tsimikas S, Miller Y, Pillai S, Ley K, Hedrick CC, and McNamara CA
- Subjects
- Animals, Humans, Male, Mice, Disease Models, Animal, Female, Coronary Artery Disease immunology, Coronary Artery Disease blood, Middle Aged, B-Lymphocyte Subsets immunology, B-Lymphocyte Subsets metabolism, Adoptive Transfer, B-Lymphocytes immunology, Aged, Immunoglobulin M immunology, Atherosclerosis immunology, CD24 Antigen immunology, CD24 Antigen metabolism, Mice, Inbred NOD
- Abstract
IgMs that inactivate oxidation-specific epitopes (IgM
OSE ), which are secondary products of lipid peroxidization, protect against inflammatory diseases, including diet-induced atherosclerosis. However, the human B cell subtype that produces IgMOSE remains unknown. In this study, we used single-cell mass cytometry and adoptive transfer of B cell subtypes to NOD.Cg-Prkdcscid Il2rgtm1Wjl /SzJ (NSG) mice to identify B27+IgM+CD24hi cells as the major producers of IgMOSE in humans. Notably, these cells have characteristics of human circulatory marginal zone B (MZB) cells, which are known to be atheoroprotective IgM producers in mice. CD24 antibody treatment to reduce MZB cells and IgM in a hyperlipidemic humanized mouse model provides the evidence that MZB cells protect against vascular inflammation. Consistent with these findings, the frequency of B27+IgM+CD24hi cells (MZB) in patients inversely correlates with coronary artery disease severity., (© 2023. The Author(s), under exclusive licence to Springer Nature Limited.)- Published
- 2023
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8. Identification of human exT reg cells as CD16 + CD56 + cytotoxic CD4 + T cells.
- Author
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Freuchet A, Roy P, Armstrong SS, Oliaeimotlagh M, Kumar S, Orecchioni M, Ali AJ, Khan A, Makings J, Lyu Q, Winkels H, Wang E, Durant C, Ghosheh Y, Gulati R, Nettersheim F, and Ley K
- Subjects
- Humans, Animals, Mice, T-Lymphocytes, Regulatory, Atherosclerosis
- Abstract
In atherosclerosis, some regulatory T (T
reg ) cells become exTreg cells. We crossed inducible Treg and exTreg cell lineage-tracker mice (FoxP3eGFP-Cre-ERT2 ROSA26CAG-fl-stop-fl-tdTomato ) to atherosclerosis-prone Apoe-/- mice, sorted Treg cells and exTreg cells and determined their transcriptomes by bulk RNA sequencing (RNA-seq). Genes that were differentially expressed between mouse Treg cells and exTreg cells and filtered for their presence in a human single-cell RNA-sequencing (scRNA-seq) panel identified exTreg cell signature genes as CST7, NKG7, GZMA, PRF1, TBX21 and CCL4. Projecting these genes onto the human scRNA-seq with CITE-seq data identified human exTreg cells as CD3+ CD4+ CD16+ CD56+ , which was validated by flow cytometry. Bulk RNA-seq of sorted human exTreg cells identified them as inflammatory and cytotoxic CD4+ T cells that were significantly distinct from both natural killer and Treg cells. DNA sequencing for T cell receptor-β showed clonal expansion of Treg cell CDR3 sequences in exTreg cells. Cytotoxicity was functionally demonstrated in cell killing and CD107a degranulation assays, which identifies human exTreg cells as cytotoxic CD4+ T cells., (© 2023. The Author(s), under exclusive licence to Springer Nature America, Inc.)- Published
- 2023
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9. [Gastrointestinal tract involvement in systemic sclerosis].
- Author
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Renaud A, Jirka A, Durant C, Connault J, Espitia O, Takoudju C, and Agard C
- Subjects
- Humans, Quality of Life, Gastrointestinal Tract, Proton Pump Inhibitors, Scleroderma, Systemic complications, Scleroderma, Systemic diagnosis, Scleroderma, Systemic therapy, Malnutrition, Gastrointestinal Diseases diagnosis, Gastrointestinal Diseases epidemiology, Gastrointestinal Diseases etiology
- Abstract
Gastrointestinal tract involvement in systemic sclerosis concerns more than 90% of patients but is of heterogeneous clinical expression. It can involve the entire intestinal tract and be responsible for multifactorial malnutrition, which is frequent in this disease. It is a major source of deterioration in the quality of life and can even be life-threatening. Management is complex and multidisciplinary, ranging from simple hygienic and dietary measures, to specialized endoscopic or surgical interventional procedures, also including medical treatments, particularly proton pump inhibitors and prokinetics, with potential side effects. Ongoing research for new diagnostic and therapeutic tools promises to improve the management and prognosis of these patients., (Copyright © 2023 Société Nationale Française de Médecine Interne (SNFMI). Published by Elsevier Masson SAS. All rights reserved.)
- Published
- 2023
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10. L-DOPA increases slow-wave sleep duration and selectively modulates memory persistence in older adults.
- Author
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Isotalus HK, Carr WJ, Blackman J, Averill GG, Radtke O, Selwood J, Williams R, Ford E, McCullagh L, McErlane J, O'Donnell C, Durant C, Bartsch U, Jones MW, Muñoz-Neira C, Wearn AR, Grogan JP, and Coulthard EJ
- Abstract
Introduction: Millions of people worldwide take medications such as L-DOPA that increase dopamine to treat Parkinson's disease. Yet, we do not fully understand how L-DOPA affects sleep and memory. Our earlier research in Parkinson's disease revealed that the timing of L-DOPA relative to sleep affects dopamine's impact on long-term memory. Dopamine projections between the midbrain and hippocampus potentially support memory processes during slow wave sleep. In this study, we aimed to test the hypothesis that L-DOPA enhances memory consolidation by modulating NREM sleep., Methods: We conducted a double-blind, randomised, placebo-controlled crossover trial with healthy older adults (65-79 years, n = 35). Participants first learned a word list and were then administered long-acting L-DOPA (or placebo) before a full night of sleep. Before sleeping, a proportion of the words were re-exposed using a recognition test to strengthen memory. L-DOPA was active during sleep and the practice-recognition test, but not during initial learning., Results: The single dose of L-DOPA increased total slow-wave sleep duration by approximately 11% compared to placebo, while also increasing spindle amplitudes around slow oscillation peaks and around 1-4 Hz NREM spectral power. However, behaviourally, L-DOPA worsened memory of words presented only once compared to re-exposed words. The coupling of spindles to slow oscillation peaks correlated with these differential effects on weaker and stronger memories. To gauge whether L-DOPA affects encoding or retrieval of information in addition to consolidation, we conducted a second experiment targeting L-DOPA only to initial encoding or retrieval and found no behavioural effects., Discussion: Our results demonstrate that L-DOPA augments slow wave sleep in elderly, perhaps tuning coordinated network activity and impacting the selection of information for long-term storage. The pharmaceutical modification of slow-wave sleep and long-term memory may have clinical implications., Clinical Trial Registration: Eudract number: 2015-002027-26; https://doi.org/10.1186/ISRCTN90897064, ISRCTN90897064., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Isotalus, Carr, Blackman, Averill, Radtke, Selwood, Williams, Ford, McCullagh, McErlane, O’Donnell, Durant, Bartsch, Jones, Muñoz-Neira, Wearn, Grogan and Coulthard.)
- Published
- 2023
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11. Single-cell transcriptomes and T cell receptors of vaccine-expanded apolipoprotein B-specific T cells.
- Author
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Nettersheim FS, Ghosheh Y, Winkels H, Kobiyama K, Durant C, Armstrong SS, Brunel S, Roy P, Dileepan T, Jenkins MK, Zajonc DM, and Ley K
- Abstract
Atherosclerotic cardiovascular diseases are the major cause of death worldwide. CD4 T cells responding to Apolipoprotein B (ApoB), the core protein of most lipoproteins, have been identified as critical disease modulators. In healthy individuals, ApoB-reactive (ApoB
+ ) CD4 T cells are mostly regulatory T cells (Tregs ), which exert anti-inflammatory effects. Yet, they may obtain pro-inflammatory features and thus become proatherogenic. Evidence from animal studies suggests that vaccination against certain major histocompatibility complex (MHC) II-binding ApoB peptides induces an expansion of ApoB+ Tregs and thus confers atheroprotection. To date, in-depth phenotyping of vaccine-expanded ApoB+ T cells has not yet been performed. To this end, we vaccinated C57BL/6J mice with the ApoB-peptide P6 (ApoB978-993 TGAYSNASSTESASY) and performed single-cell RNA sequencing of tetramer-sorted P6+ T cells. P6+ cells were clonally expanded (one major, two minor clones) and formed a transcriptional cluster distinct from clusters mainly containing non-expanded P6+ and P6- cells. Transcriptomic profiling revealed that most expanded P6+ cells had a strong Treg signature and highly expressed genes mediating suppressive functions. Yet, some expanded P6+ cells only had a residual Treg signature and expressed genes related to T helper 1 (TH 1) cells, which are proatherogenic. Modeling the T cell receptor (TCR) and P6:MHC-II interaction showed that only three amino acid residues in the α and β chain contact the P6 peptide in the MHC-II groove and thus determine the specificity of this TCR to P6. Our data begin to reveal the vaccination-induced response to an ApoB epitope., Competing Interests: KL was founder and co-owner of Atherovax, Inc. He received no compensation from Atherovax. No Atherovax funds were used in this study. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Nettersheim, Ghosheh, Winkels, Kobiyama, Durant, Armstrong, Brunel, Roy, Dileepan, Jenkins, Zajonc and Ley.)- Published
- 2023
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12. Titration of 124 antibodies using CITE-Seq on human PBMCs.
- Author
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Nettersheim FS, Armstrong SS, Durant C, Blanco-Dominguez R, Roy P, Orecchioni M, Suryawanshi V, and Ley K
- Subjects
- Humans, Antibodies, Epitopes, Staining and Labeling, Leukocytes, Mononuclear, Leukocytes
- Abstract
Single-cell RNA-sequencing (scRNA-Seq) is widely used to characterize immune cell populations. However, mRNA levels correlate poorly with expression of surface proteins, which are well established to define immune cell types. CITE-Seq (cellular indexing of transcriptomes and epitopes by sequencing) utilizes oligonucleotide-tagged antibodies to simultaneously analyze surface phenotypes and transcriptomes. Considering the high costs of adding surface phenotyping to scRNA-Seq, we aimed to determine which of 188 tested CITE-Seq antibodies can detect their antigens on human peripheral blood mononuclear cells (PBMCs), a commonly interrogated cell population in immunology, and find the optimal concentration for staining. The recommended concentration was optimal for 76 antibodies, whereas staining quality of 7 antibodies improved when the concentration was doubled. 33 and 8 antibodies still worked well when the concentration was reduced to 1/5 or 1/25, respectively. 64 antigens were not detected at any antibody concentration. Optimizing the antibody panel by removing antibodies not able to detect their target antigens and adjusting concentrations of the remaining antibodies will improve the analysis and may reduce costs. In conclusion, our data are a resource for building an informative and cost-effective panel of CITE-Seq antibodies and use them at their optimal concentrations in future CITE-seq experiments on human PBMCs., (© 2022. The Author(s).)
- Published
- 2022
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13. Cryoablation of Soft Tissues Low-Flow Vascular Malformations: Clinical Outcomes and Safety.
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Duteau V, Espitia O, Perret C, Durant C, Douane F, Toquet C, and David A
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- Humans, Retrospective Studies, Sclerotherapy methods, Tomography, X-Ray Computed methods, Treatment Outcome, Cryosurgery methods, Vascular Malformations diagnostic imaging, Vascular Malformations surgery
- Abstract
Objective: To report the clinical effectiveness and the safety of cryoablation in first or second-line therapy in symptomatic soft tissues vascular malformation, a mini-invasive therapeutic alternative to sclerotherapy or surgery., Materials and Methods: This retrospective and monocentric study included patients with symptomatic low-flow vascular malformation. The interventions were carried out under computed tomography (CT) scan, Cone-beam CT (CBCT) and/or USA guidance. Clinical response was evaluated by collecting the Numerical Rating Scale (NRS) for symptoms before and after the ablation. Safety was assessed based on criteria proposed by the Cardiovascular and Interventional Radiological Society of Europe. Imaging response was evaluated with post-ablation Magnetic Resonance Imaging., Results: Twenty-one patients were included. Cryoablation was the first operative treatment for 12 patients (12/21, 57%). The remaining patients had already undergone surgery (2/21, 9%) or one or more sclerotherapy procedures (7/21, 33%).Symptoms assessed by Numerical Rating Scale dropped from a median of 7 [IQR 6-8] before the procedure to a median of 1 [IQR 0-2] after cryoablation (p < 0.001). Half of the patients declared a full effectiveness of cryoablation on their symptoms (11/21). No major complications and four minor adverse events (two skin lesions, two patients with neuropathic pain) were reported (19%). Lesional volume significantly decreased after cryoablation (median from 3.7 cm
3 [1-10.4] to 0.25 cm3 [0-2.0], p < 0.001)., Conclusion: Cryoablation seems to be a safe and effective first- or second-line therapy for soft tissue vascular malformations., (© 2022. Springer Science+Business Media, LLC, part of Springer Nature and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE).)- Published
- 2022
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14. Case-Control Study on Exercise-Induced Vasculitis in Hikers.
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Quéneau A, Pistorius MA, Connault J, Raimbeau A, Gautier G, Bergère G, Artifoni M, Durant C, Bénichou A, Hersant J, and Espitia O
- Subjects
- Case-Control Studies, Chronic Disease, Female, Humans, Male, Vasculitis diagnosis, Vasculitis epidemiology, Venous Insufficiency diagnosis, Venous Insufficiency epidemiology
- Abstract
The aim of this study was to identify clinical factors associated with exercise-induced vasculitis (EIV). This study included EIV cases and controls matched for age. Cases included were all members of a hiking club and participated in extended hiking trips. Exercise-induced vasculitis was diagnosed based on clinical signs occurring only after prolonged walks. Chronic venous disease was defined using the Clinical Etiological Anatomical Pathophysiologic classification. This study included 162 hikers: 32 EIV cases and 130 matched controls. Mean age at EIV diagnosis was 47.1 years and 24 (75.0%) of EIV cases were women. Chronic venous disease was present in 19 (57.6%) of EIV cases vs 39 (30.0%) in controls ( P = .001); those with EIV had significantly more saphenous vein insufficiency and C3 venous insufficiency than controls, 85.0 vs 52.6% and 8 (25.0%) vs 13 (10.0%) ( P = .02), respectively. For EIV cases, mean walking distance per hike was significantly higher than for controls ( P = .002). Exercise-induced vasculitis symptoms were typical with rash and/or purpura on the leg in warm conditions. Lesions spontaneously disappear in <10 days. In this study, EIV cases had more chronic venous disease and longer mean walking distances than controls.
- Published
- 2022
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15. The Ottawa Score Performs Poorly to Identify Cancer Patients at High Risk of Recurrent Venous Thromboembolism: Insights from the TROPIQUE Study and Updated Meta-Analysis.
- Author
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Frere C, Crichi B, Wahl C, Lesteven E, Connault J, Durant C, Rueda-Camino JA, Yannoutos A, Bensaoula O, Le Maignan C, Marjanovic Z, and Farge D
- Abstract
The Ottawa score (OS) for predicting the risk of recurrent venous thromboembolism (VTE) in cancer patients with VTE may help to guide anticoagulant treatment decisions that will optimize benefit-risk ratios. However, data on its reliability are conflicting. We applied the OS to all cancer patients with VTE enrolled in the prospective multicenter TROPIQUE study who received low-molecular-weight heparin over a 6-month period. Of 409 patients, 171 (41.8%) had a high-risk OS. The 6-month cumulative incidence of recurrent VTE was 7.8% (95%CI 4.2-14.8) in the high-risk OS group versus 4.8% (95%CI 2.6-8.9) in the low-risk OS group (SHR 1.47; 95%CI 0.24-8.55). The Area Under the Receiver Operating Characteristic curve (AUROC) of the OS in identifying patients who developed recurrent VTE was 0.53 (95%CI 0.38-0.65), and its accuracy was 57.9%. Among individual variables included in the OS, only prior VTE was significantly associated with the 6-month risk of recurrent VTE (SHR 4.39; 95% CI 1.13-17.04). When pooling data from all studies evaluating this score for predicting VTE recurrence in cancer patients (7 studies, 3413 patients), the OS estimated pooled AUROC was 0.59 (95%CI 0.56-0.62), and its accuracy was 55.7%. The present findings do not support the use of the OS to assess the risk of recurrent VTE in cancer patients.
- Published
- 2022
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16. Cochleovestibular involvement in patients with Fabry disease: data from the multicenter cohort FFABRY.
- Author
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Asquier-Khati A, Mauhin W, Michel G, Gendre A, Durant C, Lavigne C, Maillard H, Lacombe D, Willems M, Lidove O, and Masseau A
- Subjects
- Audiometry, Pure-Tone, Enzyme Replacement Therapy, Female, Humans, Male, Middle Aged, Retrospective Studies, Fabry Disease complications, Fabry Disease diagnosis, Fabry Disease drug therapy, Hearing Loss diagnosis, Hearing Loss drug therapy, Hearing Loss etiology, Hearing Loss, Sensorineural diagnosis
- Abstract
Purpose: Fabry disease (FD) is a lysosomal storage disease responsible for cochleovestibular involvement. Exact prevalence and pathophysiological mechanisms behind ENT affections are still poorly known. Treating FD with enzyme replacement therapy (ERT) does not seem to significantly improve the ENT symptoms, while the impact of migalastat has yet to be determined., Methods: We carried out a retrospective multi-centre study on 47 patients from the FFABRY cohort who had an ENT consultation in the context of their FD. The information collected were as follows: clinical examination, videonystagmoscopy, pure-tone speech audiometry, videonystagmography or VHIT (Video Head Impulse Test). Severe hearing loss was defined as greater than 70 dB., Results: The median age of our cohort was 52 years with a non-negligible proportion of non-classic variants and female carriers. 72.3% of the patients complained of at least one of the following symptoms: hearing loss, tinnitus or vertigo. Pure-tone audiometry was abnormal in 61.7% of the patients (29/47), while speech audiometry was abnormal for 41.7% of the patients. The age of the patients and hypertrophic cardiomyopathy were significantly associated with the existence of an anomaly in pure-tone audiometry results. Severe hearing loss (> 70 dB) was significantly more common in male patients., Discussion: Hearing loss is particularly frequent in FD and is not limited to classic phenotypes. Close ENT follow-up is essential for Fabry patients to detect those who might benefit from hearing aid. Further studies are needed to define the impact of migalastat on cochleovestibular symptoms., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2022
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17. Pharmaco-mechanical catheter-directed thrombolysis versus recanalization and stenting for post thrombotic syndrome after lower limb deep vein thrombosis: a comparative study.
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Gautier G, Douane F, David A, Perret C, Pistorius MA, Goueffic Y, Connault J, Artifoni M, Durant C, Ploton G, Raimbeau A, Bergere G, Robin O, Maurel B, and Espitia O
- Abstract
Background: Endovenous interventional procedures can be used in addition to therapeutic anticoagulation to treat deep vein thrombosis in selected patients with proximal vein involvement (vena cava, iliac and/or common femoral). The aim of this study was to compare venous patency and the post-thrombotic syndrome (PTS) in patients treated with pharmaco-mechanical catheter-directed thrombolysis (PMT) versus recanalization-stenting for PTS after a proximal lower limb deep vein thrombosis., Methods: Between January 2014 and December 2020, this retrospective and monocentric study included patients with very symptomatic acute iliofemoral deep vein thrombosis treated with PMT within 21 days after diagnosis (PMT group) and patients with PTS caused by chronic venous obstruction treated with recanalization and stenting (CRS group)., Results: A total of 116 patients were included (26 PMT, 90 CRS). The rate of primary patency was 81.8% (18/22 patients) in the PMT group and 78.4% (69/88) in the CRS group (P>0.99). The rate of venous patency at the last follow-up was 76.9% (20/26) in the PMT group and 82.2% (74/90) in the CRS group (P=0.57). The median number of stents was 2 (range, 0-5) in the PMT group and 3 (range, 0-7) in the CRS group (P<0.001). The median stent length was 150 mm (range, 60-390 mm) and 280 mm (range, 120-820 mm), respectively (P<0.001). The median last Villalta score was 2 (range, 0-10) in the PMT group and 2 (range, 0-21) in the CRS group (P=0.55). The rate of venous claudication at the last follow-up was 19.0% (4/21) in the PMT group and 12.0% (10/83) in the CRS group (P=0.47)., Conclusions: In this study, there was no difference in venous patency and in the rate and severity of PTS between the PMT and CRS groups. The number of stent and their length were significantly lower in the PMT group compared with the CRS group., Competing Interests: Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://dx.doi.org/10.21037/qims-21-572). FD reports research funding from Cook medical, Optimed, WL Gore and personal fees and grants from Cook medical, Optimed, WL Gore (medical advisory board, educational course, speaking). YG reports research funding from Abbott, General Electric, Veryan, WL Gore and personal fees and grants from Abbott, Bard, Biotronik, Boston Scientic, Cook, General Electric, Medtronic, Penumbra, Terumo, Veryan, WL Gore (medical advisory board, educational course, speaking). BM reports consulting and proctoring fees from COOK medical and consulting fees from Philips Medical. OE reports research funding from Boston Scientific (Industry-Sponsored Research). The other authors have no conflicts of interest to declare., (2022 Quantitative Imaging in Medicine and Surgery. All rights reserved.)
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- 2022
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18. Thoracic lymphadenopathies in diffuse systemic sclerosis: an observational study on 48 patients using computed tomography.
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Renaud A, Pautre R, Morla O, Achille A, Durant C, Espitia O, Frampas E, and Agard C
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- Adult, Aged, Female, France epidemiology, Humans, Lymphadenopathy epidemiology, Male, Middle Aged, Multidetector Computed Tomography methods, Thorax pathology, Lung Diseases, Interstitial complications, Lung Diseases, Interstitial diagnostic imaging, Lymphadenopathy complications, Lymphadenopathy diagnostic imaging, Scleroderma, Systemic complications, Scleroderma, Systemic diagnostic imaging
- Abstract
Background: Thoracic multidetector computed tomography (MDCT) is essential for the detection of interstitial lung disease (ILD) in patients with systemic sclerosis (SSc). Thoracic MDCT assessment can reveal the presence of thoracic lymphadenopathies (LAP) whose signification remains uncertain. The purpose of the study was to describe the characteristics and to assess the significance of thoracic LAP in patients with diffuse SSc., Methods: We conducted a monocentric observational study on adult patients with diffuse SSc, and collected general patient and first thoracic MDCT characteristics, PET-CT and outcome data. Comparisons were made between patients with and without thoracic LAP., Results: Forty-eight patients were included. There were 30 patients (62.5%) with an ILD and 23 (48%) with at least one thoracic LAP on the first MDCT assessment. Median number per patient of thoracic LAP was 3 [1-8], with a mean size of 11.7 ± 1.7 mm, mainly located in right para-tracheal area (22.8% of the total number of LAP), right hilar area (20.3%), left hilar area (6.5%), and sub-carinal area (15.2%). PET-CT showed lymph node hypermetabolism in 11/15 patients (73.3%) with mean SUVmax at 4 ± 1.3. There were significantly more males (p = 0.002) and more patients exposed to silica (p = 0.001) in patients with thoracic LAP. ILD was significantly more extended according to Goh score (p = 0.03), and using semi-quantitative score for mixed ground-glass reticulation (p = 0.01) and global abnormalities (p = 0.03) in patients with thoracic LAP and ILD. Thirteen patients (27.1%) died during follow-up without significant difference according to the presence or not of thoracic LAP (p = 0.15). There was also no significant difference concerning immunosuppressive treatment initiation (p = 0.17)., Conclusions: Thoracic LAP are common in diffuse SSc and are generally multiple, not bulky, moderately hypermetabolic, and located at the base of the mediastinum lymph node chains. Their presence correlates with the extent of ILD. In absence of ILD, thoracic LAP presence seems to be often explained by silica exposure., Trial Registration: NA., (© 2022. The Author(s).)
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- 2022
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19. Chemokine Receptor Activation Enhances Memory B Cell Class Switching Linked to IgE Sensitization to Alpha Gal and Cardiovascular Disease.
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Pattarabanjird T, Wilson JM, Erickson LD, Workman LJ, Qiao H, Ghosheh Y, Gulati R, Durant C, Vallejo J, Saigusa R, Platts-Mills TAE, Taylor AM, Ley K, and McNamara CA
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Background: Recent studies have suggested that IgE sensitization to α-gal is associated with coronary artery disease (CAD). However, the B cell subtype(s) responsible for production of IgE to α-gal and mechanisms mediating this production remain elusive. Methods: Single cell multi-omics sequencing, was utilized to phenotype B cells obtained from 60 subjects that had undergone coronary angiography in whom serum IgE was evaluated by ImmunoCAP. Bioinformatics approaches were used to identify B cell subtype(s) and transcriptomic signatures associated with α-gal sensitization. In vitro characterization of chemokine/chemokine receptor pairs on switched memory B cells associated with IgE to α-gal was performed. Results: Of the 60 patients, 17 (28%) were positive for IgE to α-gal. CITESeq identified CCR6+ class-switched memory (SWM) B cells and CXCR4 expresssion on these CCR6+ SWM B cells as significantly associated with IgE sensitization to α-gal but not to other common allergens (peanut or inhalants). In vitro studies of enriched human B cells revealed significantly greater IgE on SWM B cells with high CCR6 and CXCR4 expression 10 days after cells were treated with IL-4 and CD40 to stimulate class switch recombination. Both CCL20 (CCR6 ligand) and CXCL12 (ligand for CXCR4) increased the expression of IgE on SWM B cells expressing their receptors. However, they appeared to have unique pathways mediating this effect as only CCL20 increased activation-induced cytidine deaminase (AID), while CXCL12 drove proliferation of CXCR4+ SWM B cells. Lastly, correlation analysis indicated an association between CAD severity and the frequency of both CCR6+ SWM and CXCR4+ SWM B cells. Conclusions: CCR6+ SWM B cells were identified as potential producers of IgE to α-gal in CAD patients. Additionally, our findings highlighted non-chemotaxis roles of CCL20/CCR6 and CXCL12/CXCR4 signaling in mediating IgE class switching and cell proliferation of SWM B cells respectively. Results may have important implications for a better understanding and better therapeutic approaches for subjects with IgE sensitization to α-gal., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Pattarabanjird, Wilson, Erickson, Workman, Qiao, Ghosheh, Gulati, Durant, Vallejo, Saigusa, Platts-Mills, Taylor, Ley and McNamara.)
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- 2022
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20. Symptomatic Internal Carotid Artery Vasa Vasorum Treated With Surgical Occlusion.
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Hawkes C, Durant C, and van Adel B
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- Carotid Arteries, Carotid Artery, Internal diagnostic imaging, Carotid Artery, Internal surgery, Humans, Carotid Stenosis, Vasa Vasorum diagnostic imaging
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- 2022
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21. Prevalence of post-thrombotic syndrome in a cohort of upper extremity vein thrombosis.
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Hervé H, Toquet C, Ploton G, Connault J, Gautier G, Raimbeau A, Bergère G, Hersant J, Durant C, Artifoni M, Brebion N, Kubina JM, Pistorius MA, and Espitia O
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- Adolescent, Adult, Aged, Aged, 80 and over, Case-Control Studies, Female, Humans, Male, Middle Aged, Prevalence, Prospective Studies, Young Adult, Postthrombotic Syndrome epidemiology, Postthrombotic Syndrome etiology, Upper Extremity Deep Vein Thrombosis complications
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Objective: Post-thrombotic syndrome (PTS) is one of the main complications that occurs after venous thrombosis. There are few data on the proportion of patients that will develop upper extremity PTS (UE-PTS) after upper extremity venous thrombosis (UEVT). The main objective of the study was to assess the prevalence of PTS in a UEVT cohort and to identify predictive factors of UE-PTS., Methods: This study included patients with a history of proximal or arm UEVT, diagnosed on duplex ultrasound examination, between January 1, 2015, and December 31, 2017, in a university hospital. After UEVT, each patient was evaluated by a prospective standardized recording of clinical manifestations and duplex ultrasound examination in case of upper limb symptoms. UE-PTS was defined as a modified Villalta score of 4 or higher., Results: Ninety-two patients were included; 68 (73.9%) had deep vein thrombosis (DVT) and 24 (19.2%) arm superficial vein thrombosis. Thirteen patients had PTS (14.1%), 12 (17.6%) in the DVT group and 1 (4.2%) in the superficial vein thrombosis group. There was a history of DVT in 92.3% of the cases of PTS. PTS was more frequent in patients with strokes with limb movement reduction (P = .01). On multivariate Cox analysis, a history of stroke (hazard ratio, 5.4; 95% confidence interval, 1.46-20.22; P = .01) was predictive of UE-PTS., Conclusions: UE-PTS occurred in 14.1% of cases after UEVT. Stroke with a decrease in limb movement was a predictor of developing PTS. Diagnostic criteria should be established for UE-PTS and prospective studies are needed to improve the description and management of UE-PTS., (Copyright © 2021 Society for Vascular Surgery. Published by Elsevier Inc. All rights reserved.)
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- 2022
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22. Schizophrenia-associated variation at ZNF804A correlates with altered experience-dependent dynamics of sleep slow waves and spindles in healthy young adults.
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Bartsch U, Corbin LJ, Hellmich C, Taylor M, Easey KE, Durant C, Marston HM, Timpson NJ, and Jones MW
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- Child, Humans, Kruppel-Like Transcription Factors genetics, Longitudinal Studies, Male, Polysomnography, Sleep genetics, Young Adult, Memory Consolidation physiology, Schizophrenia genetics
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The rs1344706 polymorphism in ZNF804A is robustly associated with schizophrenia and schizophrenia is, in turn, associated with abnormal non-rapid eye movement (NREM) sleep neurophysiology. To examine whether rs1344706 is associated with intermediate neurophysiological traits in the absence of disease, we assessed the relationship between genotype, sleep neurophysiology, and sleep-dependent memory consolidation in healthy participants. We recruited healthy adult males with no history of psychiatric disorder from the Avon Longitudinal Study of Parents and Children (ALSPAC) birth cohort. Participants were homozygous for either the schizophrenia-associated 'A' allele (N = 22) or the alternative 'C' allele (N = 18) at rs1344706. Actigraphy, polysomnography (PSG) and a motor sequence task (MST) were used to characterize daily activity patterns, sleep neurophysiology and sleep-dependent memory consolidation. Average MST learning and sleep-dependent performance improvements were similar across genotype groups, albeit more variable in the AA group. During sleep after learning, CC participants showed increased slow-wave (SW) and spindle amplitudes, plus augmented coupling of SW activity across recording electrodes. SW and spindles in those with the AA genotype were insensitive to learning, whilst SW coherence decreased following MST training. Accordingly, NREM neurophysiology robustly predicted the degree of overnight motor memory consolidation in CC carriers, but not in AA carriers. We describe evidence that rs1344706 polymorphism in ZNF804A is associated with changes in the coordinated neural network activity that supports offline information processing during sleep in a healthy population. These findings highlight the utility of sleep neurophysiology in mapping the impacts of schizophrenia-associated common genetic variants on neural circuit oscillations and function., (© Sleep Research Society 2021. Published by Oxford University Press on behalf of the Sleep Research Society.)
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- 2021
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23. [Characteristics of patients with connective tissue disease-associated pulmonary arterial hypertension treated with prostanoids: A multicenter retrospective study].
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Genin V, Horeau-Langlard D, Diot E, Gagnadoux F, Lavigne C, Fournet M, Durant C, and Agard C
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- Humans, Prostaglandins, Retrospective Studies, Connective Tissue Diseases complications, Connective Tissue Diseases drug therapy, Connective Tissue Diseases epidemiology, Hypertension, Pulmonary drug therapy, Hypertension, Pulmonary epidemiology, Hypertension, Pulmonary etiology, Pulmonary Arterial Hypertension
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Introduction: Pulmonary arterial hypertension (PAH) is a severe complication of connective tissue disease (CTD). Data on use of prostanoids in this particular subset of patients are lacking. We aimed to describe the characteristics of patients with PAH-CTD treated with prostanoids and the outcomes under treatment., Methods: In this multicenter retrospective study, all patients treated with prostanoids since 2006 were included. Data on PAH and CTD were collected at the time of prostanoid introduction and under treatment., Results: Twenty-one patients were included, of whom 20 (95%) had limited cutaneous systemic sclerosis. Nineteen patients were treated with oral monotherapy or combination before addition of prostanoid. Treprostinil was the most used molecule (57% of patients). At the time of prostanoid introduction, 90% of patients were considered at high risk for death. Among patients who had right heart catheterization during follow-up, there was no significant difference in haemodynamics. No extrarespiratory worsening of the CTD was reported. The 1-year survival under prostanoid was 62%. In univariate analysis, NYHA functional class was associated with survival under treatment., Conclusion: This study provides original data on use of prostanoids in a cohort consisting mainly of systemic sclerosis. It underlines the difficulty to achieve a standardized assessment in this subset of patients. Safety profile was comparable with data reported in idiopathic PAH., (Copyright © 2021. Published by Elsevier Masson SAS.)
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- 2021
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24. Effect of cannabis consumption on characteristics and evolution of thromboangitis obliterans.
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Bergère G, Toquet C, Hoffmann C, Bressollette L, Raimbeau A, Durant C, Artifoni M, Gautier G, Hersant J, Connault J, Pistorius MA, and Espitia O
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- Amputation, Surgical, Humans, Retrospective Studies, Cannabis, Thromboangiitis Obliterans
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Background: Thromboangiitis obliterans (TAO) is a distal non atherosclerotic thrombotic vasculitis affecting tobacco smokers. The role of cannabis co-exposure remains controversial. The study aims to assess how cannabis consumption influences clinical presentation and outcome of TAO in tobacco smokers. Patients and methods: TAO patients, according to Papa's criteria, were included in a retrospective bicentric study between the 1
st January 2003 and the 1st Seventy-three patients with TAO patients were included. Forty-five patients were in Tobacco group (T) and 28 in Tobacco and cannabis group (T&C). Tobacco exposure was less important in T&C group than in T group (19.4±11.3 vs 31.6±16.6 pack-years) (p=0.005) and patients in T&C group were younger at TAO diagnosis than in T group (p=0.008). Patients in T&C group presented more claudication (33.3% vs 8.9%, p=0.01) and less upper limbs resting ischemia (25.9% vs 51.1%, p=0.04) than patients in the T group. No differences were found between groups with regard to arterial distribution. Amputation rate for patients who had at least one major or minor amputation did not differ between T and T&C group (25% vs 14.8%, p=0.38). Results: Cannabis consumption was associated with a younger age of TAO onset. However, it does not affect amputation-free survival, Tobacco exposure is less important in T&C patients; data of this bicentric study suggest that cannabis could be a cofactor of tobacco which accelerates TAO onset.Conclusions: Cannabis consumption was associated with a younger age of TAO onset. However, it does not affect amputation-free survival, Tobacco exposure is less important in T&C patients; data of this bicentric study suggest that cannabis could be a cofactor of tobacco which accelerates TAO onset.- Published
- 2021
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25. Risk factors for symptomatic vascular events in giant cell arteritis: a study of 254 patients with large-vessel imaging at diagnosis.
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de Mornac D, Agard C, Hardouin JB, Hamidou M, Connault J, Masseau A, Espitia-Thibault A, Artifoni M, Ngohou C, Perrin F, Graveleau J, Durant C, Pottier P, Néel A, and Espitia O
- Abstract
Aims: To identify factors associated with vascular events in patients with giant cell arteritis (GCA)., Methods: We performed a retrospective study of GCA patients diagnosed over a 20-year-period, who all underwent vascular imaging evaluation at diagnosis. Symptomatic vascular events were defined as the occurrence of any aortic event (aortic dissection or symptomatic aortic aneurysm), stroke, myocardial infarction, limb or mesenteric ischemia and de novo lower limbs arteritis stage 3 or 4. Patients with symptomatic vascular event (VE+) and without were compared, and risk factors were identified in a multivariable analysis., Results: Thirty-nine (15.4%) of the 254 included patients experienced at least one symptomatic vascular event during follow-up, with a median time of 21.5 months. Arterial hypertension, diabetes, lower limbs arteritis or vascular complication at diagnosis were more frequent in VE+ patients ( p < 0.05), as an abnormal computed tomography (CT)-scan at diagnosis ( p = 0.04), aortitis ( p = 0.01), particularly of the descending thoracic aorta ( p = 0.03) and atheroma ( p = 0.03). Deaths were more frequent in the VE+ group (37.1 versus 10.3%, p = 0.0003). In multivariable analysis, aortic surgery [hazard ratio (HR): 10.46 (1.41-77.80), p = 0.02], stroke [HR: 22.32 (3.69-135.05), p < 0.001], upper limb ischemia [HR: 20.27 (2.05-200.12), p = 0.01], lower limb ischemia [HR: 76.57 (2.89-2027.69), p = 0.009], aortic atheroma [HR: 3.06 (1.06-8.82), p = 0.04] and aortitis of the descending thoracic aorta on CT-scan at diagnosis [HR: 4.64 (1.56-13.75), p = 0.006] were independent predictive factors of a vascular event., Conclusion: In this study on GCA cases with large vessels imaging at diagnosis, aortic surgery, stroke, upper or lower limb ischemia, aortic atheroma and aortitis of the descending thoracic aorta on CT-scan, at GCA diagnosis, were independent predictive factors of a vascular event., Plain Language Summary: Risk factors for symptomatic vascular events in giant cell arteritisThis study was performed to identify the risk factors for developing symptomatic vascular event during giant cell arteritis (GCA) because these are poorly known.We performed a retrospective study of GCA patients diagnosed over a 20-year-period, who all underwent vascular imaging evaluation at diagnosis.Patients with symptomatic vascular event (VE+) and without (VE-) were compared, and risk factors were identified in a multivariable analysis.Thirty-nine patients experienced at least one symptomatic vascular event during follow-up, with a median time of 21.5 months.Arterial hypertension, diabetes, lower limbs arteritis or vascular complication at diagnosis were significantly more frequent in VE+ patients, as an abnormal CT-scan at diagnosis, aortitis, particularly of the descending thoracic aorta and atheroma. Deaths were more frequent in the VE+ group.Among 254 GCA patients, 39 experienced at least one vascular event during follow-up.Aortic surgery, stroke, upper and lower limb ischemia were vascular event risk factors.Aortic atheroma and descending thoracic aorta aortitis on CT-scan were vascular event risk factors.This study on GCA cases with large vessels imaging at diagnosis, showed that aortic surgery, stroke, upper or lower limb ischemia, aortic atheroma and aortitis of the descending thoracic aorta on CT-scan, at GCA diagnosis, were independent predictive factors of a vascular event., Competing Interests: Conflict of interest statement: The authors declare that there is no conflict of interest., (© The Author(s), 2021.)
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- 2021
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26. Digital ischaemia aetiologies and mid-term follow-up: A cohort study of 323 patients.
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Raimbeau A, Pistorius MA, Goueffic Y, Connault J, Plissonneau-Duquene P, Maurel B, Reignier J, Asehnoune K, Artifoni M, Didier Q, Gautier G, Trochu JN, Rozec B, N'Gohou C, Durant C, Pottier P, Denis Le Sève J, Brebion N, Agard C, and Espitia O
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- Adult, Aged, Aged, 80 and over, Embolism complications, Embolism epidemiology, Female, Fingers pathology, Fingers surgery, Follow-Up Studies, Humans, Iatrogenic Disease epidemiology, Ischemia epidemiology, Ischemia surgery, Kaplan-Meier Estimate, Male, Marijuana Smoking adverse effects, Marijuana Smoking epidemiology, Middle Aged, Necrosis epidemiology, Necrosis etiology, Necrosis surgery, Neoplasms complications, Neoplasms epidemiology, Recurrence, Retrospective Studies, Risk Factors, Scleroderma, Systemic complications, Scleroderma, Systemic epidemiology, Survival Rate, Thromboangiitis Obliterans complications, Thromboangiitis Obliterans epidemiology, Thrombosis complications, Thrombosis epidemiology, Tobacco Smoking adverse effects, Tobacco Smoking epidemiology, Amputation, Surgical statistics & numerical data, Fingers blood supply, Ischemia etiology
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Abstract: Upper extremity digital ischaemia (UEDI) is a rare heterogeneous condition whose frequency is 40 times less than that of toe ischaemia. Using a large cohort, the aim of this study was to evaluate aetiologies, prognosis and midterm clinical outcomes of UEDI.All patients with UEDI with or without cutaneous necrosis in a university hospital setting between January 2000 to December 2016 were included. Aetiologies, recurrence of UEDI, digital amputation and survival were analyzed retrospectively.Three hundred twenty three patients were included. UEDI due to cardio-embolic disease (DICE) was the highest occurring aetiology with 59 patients (18.3%), followed by DI due to Systemic Sclerosis (SSc) (16.1%), idiopathic causes (11.7%), Thromboangiitis obliterans (TAO) (9.3%), iatrogenic causes (9.3%), and cancer (6.2%). DICE patients tended to be older and featured more cases with arterial hypertension whereas TAO patients smoked more tobacco and cannabis. During follow-up, recurrences were significantly more frequent in SSc than in all other tested groups (P < .0001 vs idiopathic and DICE, P = .003 vs TAO) and among TAO patients when compared to DICE patients (P = .005). The cumulated rate of digital amputation was higher in the SSc group (n = 18) (P = .02) and the TAO group (n = 7) (P = .03) than in DICE (n = 2).This retrospective study suggests that main aetiologies of UEDI are DICE, SSc and idiopathic. This study highlights higher frequency of iatrogenic UEDI than previous studies. UEDI associated with SSc has a poor local prognosis (amputations and recurrences) and DICE a poor survival. UEDI with SSc and TAO are frequently recurrent., Competing Interests: The authors have no funding and conflicts of interests to disclose., (Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.)
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- 2021
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27. Large-vessel involvement is predictive of multiple relapses in giant cell arteritis.
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de Mornac D, Espitia O, Néel A, Connault J, Masseau A, Espitia-Thibault A, Artifoni M, Achille A, Wahbi A, Lacou M, Durant C, Pottier P, Perrin F, Graveleau J, Hamidou M, Hardouin JB, and Agard C
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Background: Giant cell arteritis (GCA) is the most common systemic vasculitis. Relapses are frequent. The aim of this study was to identify relapse risk factors in patients with GCA with complete large-vessel imaging at diagnosis., Methods: Patients with GCA followed in our institution between April 1998 and April 2018 were included retrospectively. We included only patients who had undergone large vascular imaging investigations at diagnosis by computed tomography (CT)-scan and/or positron emission tomography (PET)-scan and/or angio-magnetic resonance imaging (MRI). Clinical, biological, and radiological data were collected. Relapse was defined as the reappearance of GCA symptoms, with concomitant increase in inflammatory markers, requiring treatment adjustment. Relapsing patients (R) and non-relapsing patients (NR) were compared. Relapse and multiple relapses (>2) risk factors were identified in multivariable Cox analyses., Results: This study included 254 patients (73.2% women), with a median age of 72 years at diagnosis and a median follow up of 32.5 months. At diagnosis, 160 patients (63%) had an inflammatory large-vessel involvement on imaging, 46.1% (117 patients) relapsed at least once, and 21.3% (54 patients) had multiple relapses. The median delay of first relapse after diagnosis was 9 months. The second relapse delay was 21.5 months. NR patients had more stroke at diagnosis than R ( p = 0.03) and the brachiocephalic trunk was involved more frequently on CT-scan ( p = 0.046), as carotids ( p = 0.02) in R patients. Multivariate Cox model identified male gender [hazard ratio (HR): 0.51, confidence interval (CI) (0.27-0.96), p = 0.04] as a relapse protective factor, and peripheral musculoskeletal manifestations [HR: 1.74 (1.03-2.94), p = 0.004] as a relapse risk factor. Peripheral musculoskeletal manifestations [HR: 2.78 (1.23-6.28), p = 0.014], negative temporal artery biopsy [HR: 2.29 (1.18-4.45), p = 0.015], large-vessel involvement like upper limb ischemia [HR: 8.84 (2.48-31.56), p = 0.001] and inflammation of arm arteries on CT-scan [HR: 2.39 (1.02-5.58), p = 0.04] at diagnosis were risk factors of multiple relapses., Conclusion: Male gender was a protective factor for GCA relapse and peripheral musculoskeletal manifestations appeared as a relapsing risk factor. Moreover, this study identified a particular clinical phenotype of multi-relapsing patients with GCA, characterized by peripheral musculoskeletal manifestations, negative temporal artery biopsy, and large-vessel involvement with upper limb ischemia or inflammation of arm arteries., Plain Language Summary: At giant cell arteritis diagnosis, large-vessel inflammatory involvement is predictive of multiple relapses 46.1% of patients with GCA relapse, and 21.3% undergo multiple relapses;Male gender appears as a protective factor for relapsing in GCA;Peripheral musculoskeletal manifestations are a relapse and multiple relapses risk factor;A negative temporal artery biopsy is predictive of multiple relapses;Large-vessel involvement is predictive of multiple relapses., Competing Interests: Conflict of interest statement: The authors declare that there is no conflict of interest., (© The Author(s), 2021.)
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- 2021
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28. Predictive factors of venous recanalization in upper-extremity vein thrombosis.
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Ploton G, Brebion N, Guyomarch B, Pistorius MA, Connault J, Hersant J, Raimbeau A, Bergère G, Artifoni M, Durant C, Gautier G, Dumont R, Kubina JM, Toquet C, and Espitia O
- Subjects
- Adult, Aged, Catheterization, Central Venous methods, Catheterization, Peripheral adverse effects, Catheterization, Peripheral methods, Catheters, Indwelling adverse effects, Central Venous Catheters, Female, France, Humans, Logistic Models, Male, Middle Aged, Odds Ratio, Prognosis, Proportional Hazards Models, Retrospective Studies, Risk Assessment, Risk Factors, Thrombosis, Veins, Venous Thrombosis metabolism, Venous Thrombosis therapy, Catheterization, Central Venous adverse effects, Upper Extremity blood supply, Venous Thrombosis physiopathology
- Abstract
Background: Upper extremity venous thrombosis (UEVT) represents about 10% of venous thrombo-embolic disease. This is mainly explained by the increasing use of central venous line, for oncologic or nutritional care. The factors associated with venous recanalization are not known., Objective: The aim of this study was to investigate prognosis factor associated with venous recanalization after UEVT., Methods: This study included patients with UEVT diagnosed with duplex ultra-sonography (DUS) from January 2015 to December 2017 with DUS evaluations during follow-up. A multivariate Cox proportional-hazards-model analysis was performed to identify predictive factors of UEVT complete recanalization., Results: This study included 494 UEVT, 304 proximal UEVT and 190 distal UEVT. The median age was 58 years, 39.5% were women. Clinical context was: hematological malignancy (40.7%), solid cancer (14.2%), infectious or inflammatory context (49.9%) and presence of venous catheters or pacemaker leads in 86.4%. The rate of recanalization without sequelae of UEVT was 38%. For all UEVT, in multivariate analysis, factors associated with complete vein recanalization were: thrombosis associated with central venous catheter (CVC) (HR:2.40, [1.45;3.95], p<0.001), UEVT limited to a venous segment (HR:1.94, [1.26;3.00], p = 0.003), occlusive thrombosis (HR:0.48 [0.34;0.67], p<0.0001), the presence of a PICC Line (HR:2.29, [1.48;3.52], p<0.001), a thrombosis of deep and distal topography (HR:1.70, [1.10;2.63], p = 0.02) or superficial thrombosis of the forearm (HR:2.79, [1.52;5.12], p<0.001). For deep and proximal UEVT, non-occlusive UEVT (HR:2.23, [1.49;3.33], p<0.0001), thrombosis associated with CVC (HR:1.58, [1.01;2.47], p = 0.04) and infectious or inflammatory context (HR:1.63, [1.10;2.41], p = 0.01) were factors associated with complete vein recanalization., Conclusion: In this study, factors associated with UEVT recanalization were UEVT limited to a venous segment, thrombosis associated with CVC, a thrombosis of deep and distal thrombosis topography and superficial thrombosis of the forearm. Occlusive thrombosis was associated with the absence of UEVT recanalization., Competing Interests: The authors have declared that no competing interests exist.
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- 2021
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29. First study of safety and tolerability of 3,4-methylenedioxymethamphetamine-assisted psychotherapy in patients with alcohol use disorder.
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Sessa B, Higbed L, O'Brien S, Durant C, Sakal C, Titheradge D, Williams TM, Rose-Morris A, Brew-Girard E, Burrows S, Wiseman C, Wilson S, Rickard J, and Nutt DJ
- Subjects
- Alcohol Drinking psychology, Alcohol Drinking therapy, Combined Modality Therapy, Drug Monitoring methods, Female, Hallucinogens administration & dosage, Hallucinogens adverse effects, Humans, Male, Middle Aged, Outcome Assessment, Health Care, Proof of Concept Study, Psychiatric Status Rating Scales, Recovery of Function, Treatment Outcome, United Kingdom, Alcoholism diagnosis, Alcoholism physiopathology, Alcoholism psychology, Alcoholism therapy, N-Methyl-3,4-methylenedioxyamphetamine administration & dosage, N-Methyl-3,4-methylenedioxyamphetamine adverse effects, Psychosocial Functioning, Psychotherapy methods, Quality of Life
- Abstract
Background: 3,4-methylenedioxymethamphetamine (MDMA) therapy has qualities that make it potentially well suited for patients with addictions, but this has never been explored in a research study. We present data from the Bristol Imperial MDMA in Alcoholism (BIMA) study. This is the first MDMA addiction study, an open-label safety and tolerability proof-of-concept study investigating the potential role for MDMA therapy in treating patients with alcohol use disorder (AUD)., Aims: This study aimed to assess if MDMA-assisted psychotherapy can be delivered safely and can be tolerated by patients with AUD post detoxification. Outcomes regarding drinking behaviour, quality of life and psychosocial functioning were evaluated., Methods: Fourteen patients with AUD completed a community alcohol detoxification and received an eight-week course of recovery-based therapy. Participants received two sessions with MDMA (187.5 mg each session). Psychological support was provided before, during and after each session. Safety and tolerability were assessed alongside psychological and physiological outcome measures. Alcohol use behaviour, mental well-being and functioning data were collected for nine months after alcohol detoxification., Results: MDMA treatment was well tolerated by all participants. No unexpected adverse events were observed. Psychosocial functioning improved across the cohort. Regarding alcohol use, at nine months post detox, the average units of alcohol consumption by participants was 18.7 units per week compared to 130.6 units per week before the detox. This compares favourably to a previous observational study (the 'Outcomes' study) by the same team with a similar population of people with AUD., Conclusions: This study provides preliminary support for the safety and tolerability of a novel intervention for AUD post detox. Further trials to examine better the therapeutic potential of this approach are now indicated.
- Published
- 2021
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30. [Evaluation of a woman's care program after pre-eclampsia].
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Guittet M, Lamirault G, Connault J, Durant C, Hamidou M, Wargny M, Le Bras M, Winer N, and Artifoni M
- Subjects
- Aged, Female, Humans, Obesity, Pregnancy, Risk Factors, Diabetes Mellitus, Hypertension epidemiology, Hypertension therapy, Pre-Eclampsia diagnosis, Pre-Eclampsia epidemiology, Pre-Eclampsia therapy
- Abstract
Introduction: The medical treatment of preeclampsia is well structured in its acute phase but the required follow-up with patients in post-partum is discussed. However, preeclampsia is associated with an increased risk of cardiovascular morbi-mortality in the long term. In order to optimize the post-partum treatment, a care program has been developed for these patients in the city of Nantes, France. This includes a check-up of the cardiovascular risks at a day hospital. Our study presents the first results of this program., Methods: The study included 134 patients who were diagnosed with preeclampsia between October 2016 and January 2019 in the Nantes area, France, and took part in the program within the year following their childbirth. A descriptive analysis was first carried out and then a multivariate logistic regression model was used to investigate the risk factors for persistent high blood pressure after preeclampsia., Results: The study detected 28 cases of persistent hypertension (20.9%), 34 cases of obesity (25.3%) and 1 case of diabetes. Hypertension was predominantly diastolic, mild and sometimes masked (35.7%). In a third of the cases (32.1%), the hypertension was secondary. High blood pressure was found to be more frequent in older patients (OR: 2.26; 95% CI: 1.25-4.11, p=0.072), patients from sub-Saharan Africa (OR: 11.52; 95% CI: 2.67-49.86, p=0.01) and multiparous patients (OR: 7.82; 95% CI: 1.15-53.21, p=0.035)., Conclusion: The study confirmed that this care program enables an earlier detection and therefore treatment of the cardiovascular risk factors of these young women., (Copyright © 2021 Société Nationale Française de Médecine Interne (SNFMI). Published by Elsevier Masson SAS. All rights reserved.)
- Published
- 2021
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31. [Monocentric study on pharmaceuticals taken by patients to treat systemic sclerosis].
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Renaud A, Durant C, Achille A, Artifoni M, Espitia O, and Agard C
- Subjects
- Angiotensin-Converting Enzyme Inhibitors, Humans, Pharmaceutical Preparations, Raynaud Disease drug therapy, Raynaud Disease epidemiology, Scleroderma, Localized, Scleroderma, Systemic drug therapy, Scleroderma, Systemic epidemiology
- Abstract
Introduction: Pharmaceutical prescription in systemic sclerosis is guided by national and international recommendations. This study's primary objective was to describe and analyze these prescriptions among patients of our cohort. We also aimed to assess drug compliance among our patients., Methods: This is a monocentric observational study on two cohorts of patients with systemic sclerosis; a primary cohort comprising ambulatory patients, who were prospectively included, with exhaustive prescription's data collection; and a secondary cohort included patients asked to fill in a self-questionnaire on treatment compliance., Results: The main cohort included 157 patients, including 31 cases of diffuse systemic sclerosis. A vasodilator drug for Raynaud's phenomenon was prescribed in 75 patients (47.9%) and a specific treatment for pulmonary arterial hypertension in 10 patients (6.4%). Immuno-modulators/immunosuppressants was prescribed in 62 patients (39.5%), who received prednisone (n=37, 23.6%), mycophenolate mofetil (n=14, 8.9%), hydroxychloroquine (n=12, 7.6%) and colchicine (n=22, 14%). Treatment for "gastro-intestinal tract involvement" was prescribed for 106 patients (67.5%) and treatment of a scleroderma renal crisis with an angiotensin-converting enzyme inhibitor for 6 patients (3.8%). Among the 42 patients in the secondary cohort, 21.4% reported a good compliance, mostly older patients (P=0.045) or those who had not experienced adverse events (P=0.009)., Conclusion: This study provides original real-life data illustrating the heterogeneity of prescription habits in systemic sclerosis. As previously reported, treatment compliance was insufficient., (Copyright © 2020 Société Nationale Française de Médecine Interne (SNFMI). Published by Elsevier Masson SAS. All rights reserved.)
- Published
- 2021
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32. Symptomatic aortitis at giant cell arteritis diagnosis: a prognostic factor of aortic event.
- Author
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Espitia O, Blonz G, Urbanski G, Landron C, Connault J, Lavigne C, Roblot P, Maillot F, Audemard-Verger A, Artifoni M, Durant C, Guyomarch B, Hamidou M, Magnant J, and Agard C
- Subjects
- Aorta, Humans, Prognosis, Retrospective Studies, Aortitis diagnostic imaging, Aortitis epidemiology, Giant Cell Arteritis complications, Giant Cell Arteritis diagnosis
- Abstract
Background: Giant cell arteritis (GCA) is frequently associated with aortic involvement that is likely to cause life-threatening structural complications (aneurysm, dissection). Few studies have investigated the occurrence of these complications, and no predictive factor has been identified so far. The aim of this study was to investigate factors associated with the risk of aortic complications in a cohort of GCA aortitis., Methods: Data of all patients managed with aortitis (CT or 18 FDG PET) at the diagnosis of GCA in five hospitals from May 1998 and April 2019 were retrospectively collected. Clinical features were compared according to the presence of aortitis symptoms. The predictive factors of occurrence or aggravation of aortic structural abnormalities were investigated., Results: One hundred and seventy-one patients with GCA aortitis were included; 55 patients (32%) had symptoms of aortitis (dorsal/lumbar/abdominal pain, aortic insufficiency) at diagnosis. The median follow-up was 38 months. Aortic complications occurred after a median time of 32 months. There were 19 new aortic aneurysms or complications of aneurysm and 5 dissections. Survival without aortic complication was significantly different between the symptomatic and non-symptomatic groups (Log rank, p = 0.0003). In multivariate analysis the presence of aortitis symptoms at diagnosis (HR 6.64 [1.95, 22.6] p = 0.002) and GCA relapse (HR 3.62 [1.2, 10.9] p = 0.02) were factors associated with the occurrence of aortic complications., Conclusion: In this study, the presence of aortitis symptoms at the diagnosis of GCA aortitis and GCA relapse were independent predictive factors of occurrence of aortic complications during follow-up.
- Published
- 2021
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33. Outcomes in 886 Critically Ill Patients After Near-Hanging Injury.
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de Charentenay L, Schnell G, Pichon N, Schenck M, Cronier P, Perbet S, Lascarrou JB, Rossignol T, Lesieur O, Argaud L, Colin G, Cholley B, Quenot JP, Merdji H, Silva S, Piagnerelli M, Chelly J, Salvetti M, Couraud S, Deye N, Danguy des Déserts M, Paul M, Thiery G, Simon M, Martin C, Vincent F, Das V, Jacq G, Jacobs F, Soummer A, Mayaux J, Beuret P, Ouchenir A, Durant C, Darmon M, Azoulay E, Sauneuf B, Daubin C, Mongardon N, Biard L, Cariou A, Geeraerts T, and Legriel S
- Subjects
- Adult, Belgium epidemiology, Cardiopulmonary Resuscitation methods, Cardiopulmonary Resuscitation mortality, Cohort Studies, Female, France epidemiology, Functional Status, Glasgow Coma Scale, Hospital Mortality, Humans, Male, Prognosis, Retrospective Studies, Survival Analysis, Critical Illness mortality, Critical Illness therapy, Heart Arrest etiology, Heart Arrest mortality, Heart Arrest therapy, Patient Discharge statistics & numerical data, Suicide, Attempted statistics & numerical data
- Abstract
Background: Near-hanging experiences are life-threatening events about which few data are available., Research Question: What are the outcomes and early predictors of hospital mortality in critically ill patients who have undergone a near-hanging experience?, Study Design and Methods: Adult patients who were resuscitated successfully after suicidal near-hanging injury admitted to 31 university or university-affiliated ICUs in France and Belgium between 1992 and 2014 were studied retrospectively. Patients were identified by searching the hospital databases for International Statistical Classification of Diseases and Related Health Problems, 9th and 10th revisions, codes and hospital charts for hanging. Logistic multivariate regression was performed to identify factors associated vital and functional outcomes at hospital discharge as the primary end points. Secondary outcomes were evaluation of temporal trends and identification of predictors of hospital mortality., Results: Of the 886 patients (181 women and 705 men; median age, 43 years; interquartile range, 34-52 years), 266 (30.0%) had attempted suicide previously, 600 (67.7%) had a diagnosed mental illness, and 55 (6.2%) attempted hanging while hospitalized. Median time from hanging awareness to unhanging was 0 min (interquartile range [IQR], 0-0; range, 0-82 min). Median Glasgow Coma Scale score was 3 (IQR, 3-5) at ICU admission. Hanging induced cardiac arrest in 450 of 886 patients (50.8%). Overall, 497 of 886 patients (56.1%) were alive at hospital discharge, including 479 of 497 patients (96.4%) with a favorable neurocognitive outcome (defined as a Glasgow Outcome Scale score of 4 or 5). By multivariate analysis, factors associated with hospital mortality were hanging-induced cardiac arrest (OR, 19.50; 95% CI, 7.21-60.90; P < .00001) and findings at ICU admission of glycemia level > 1.4 g/L (OR, 4.34; 95% CI, 1.82-10.81; P = .0007) and of lactate level > 3.5 mmol/L (OR, 9.98; 95% CI, 4.17-25.36; P < .00001)., Interpretation: The findings from this large multicenter retrospective cohort emphasize the very high mortality after hanging injury chiefly because of hanging-induced cardiac arrest. However, patients who survive near-hanging experiences achieve excellent neurocognitive recovery. Studies of early neuroprotective strategies for patients who have undergone near-hanging experiences are warranted., Trial Registry: ClinicalTrials.gov; No.: NCT04096976; URL: www.clinicaltrials.gov., (Copyright © 2020 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.)
- Published
- 2020
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34. Blunted endogenous opioid release following an oral dexamphetamine challenge in abstinent alcohol-dependent individuals.
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Turton S, Myers JF, Mick I, Colasanti A, Venkataraman A, Durant C, Waldman A, Brailsford A, Parkin MC, Dawe G, Rabiner EA, Gunn RN, Lightman SL, Nutt DJ, and Lingford-Hughes A
- Subjects
- Administration, Oral, Adult, Fentanyl administration & dosage, Fentanyl metabolism, Humans, Male, Middle Aged, Positron-Emission Tomography, Receptors, Opioid, mu agonists, Receptors, Opioid, mu metabolism, Alcoholism metabolism, Brain drug effects, Brain metabolism, Dextroamphetamine administration & dosage, Dextroamphetamine pharmacology, Opioid Peptides metabolism
- Abstract
Addiction has been proposed as a 'reward deficient' state, which is compensated for with substance use. There is growing evidence of dysregulation in the opioid system, which plays a key role in reward, underpinning addiction. Low levels of endogenous opioids are implicated in vulnerability for developing alcohol dependence (AD) and high mu-opioid receptor (MOR) availability in early abstinence is associated with greater craving. This high MOR availability is proposed to be the target of opioid antagonist medication to prevent relapse. However, changes in endogenous opioid tone in AD are poorly characterised and are important to understand as opioid antagonists do not help everyone with AD. We used [
11 C]carfentanil, a selective MOR agonist positron emission tomography (PET) radioligand, to investigate endogenous opioid tone in AD for the first time. We recruited 13 abstinent male AD and 15 control participants who underwent two [11 C]carfentanil PET scans, one before and one 3 h following a 0.5 mg/kg oral dose of dexamphetamine to measure baseline MOR availability and endogenous opioid release. We found significantly blunted dexamphetamine-induced opioid release in 5 out of 10 regions-of-interest including insula, frontal lobe and putamen in AD compared with controls, but no significantly higher MOR availability AD participants compared with HC in any region. This study is comparable to our previous results of blunted dexamphetamine-induced opioid release in gambling disorder, suggesting that this dysregulation in opioid tone is common to both behavioural and substance addictions.- Published
- 2020
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35. A STROBE cohort study of 755 deep and superficial upper-extremity vein thrombosis.
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Ploton G, Pistorius MA, Raimbeau A, Denis Le Seve J, Bergère G, Ngohou C, Goueffic Y, Artifoni M, Durant C, Gautier G, Connault J, and Espitia O
- Subjects
- Female, Humans, Male, Middle Aged, Pulmonary Embolism etiology, Pulmonary Embolism mortality, Retrospective Studies, Thrombosis complications, Thrombosis diagnostic imaging, Thrombosis mortality, Ultrasonography, Venous Thrombosis complications, Venous Thrombosis diagnostic imaging, Venous Thrombosis mortality, Arm blood supply, Thrombosis diagnosis, Venous Thrombosis diagnosis
- Abstract
Upper extremity vein thrombosis (UE-VT) are more and more frequent pathologies and yet little studied. The aim is to describe the clinical and ultrasound features, UE-VT-related diseases, and the prevalence of pulmonary embolism (PE) and associated deaths.All UE-VT patients diagnosed by Doppler-ultrasound in Nantes University Hospital, from January 2015 to December 2017, were included retrospectively. UE-VT suspicion patterns, clinical features, UE-VT topography, and prevalence of PE and death were analyzed.Seven hundred and fifty-five UE-VT were analyzed, including 427 deep thrombosis (UE-DVT) and 328 superficial thrombosis (UE-SVT). In 86.2% (n = 651) UE-VT were related to endovascular devices. Among these thrombosis, one third is in connection with a PICC LINE and one quarter with a peripheral venous line. Forty nine percent (n = 370) of the patients had solid neoplasia or hematological malignancies. An inflammatory or systemic infectious context was found in 40.8% (n = 308) of the cases. The most frequently observed clinical sign at the UE-VT diagnosis was edema (28.6%). Among the UE-SVT it was the presence of an indurated cord (33.2%) and among the UE-DVT the indication of the Doppler-ultrasound was mainly a suspicion of infection on endovascular device (35.1%). In 10.6% (n = 80) of the cases the UE-VT were asymptomatic. The most frequently thrombosed veins were brachial basilic veins (16.7% of all thrombosed segments) followed by jugular (13%) and subclavian (12.3%) veins; 61.3% (n = 463) of UE-VT were in the right upper extremity; 63.3% (n = 478) UE-VT were occlusive. The occurrence of PE is 4% and the death rate is 10.2%, mainly related to the severe comorbidities of patients with UE-VT.UE-VT occurs in particular clinical contexts (hematological malignancies, solid cancers, systemic infections) and in the majority of endovascular devices (86.2%). The occurrence of PE is low.
- Published
- 2020
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36. Management of cancer-related thrombosis in the era of direct oral anticoagulants: A comprehensive review of the 2019 ITAC-CME clinical practice guidelines. On behalf of the Groupe Francophone Thrombose et Cancer (GFTC).
- Author
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Rafii H, Frère C, Benzidia I, Crichi B, Andre T, Assenat E, Bournet B, Carpentier A, Connault J, Doucet L, Durant C, Emmerich J, Gris JC, Hij A, Le Hello C, Madelaine I, Messas E, Ndour A, Villiers S, Marjanovic Z, Ait Abdallah N, Yannoutsos A, and Farge D
- Subjects
- Administration, Oral, Anticoagulants adverse effects, Consensus, Guideline Adherence standards, Hemorrhage chemically induced, Humans, Neoplasms blood, Neoplasms diagnosis, Recurrence, Risk Factors, Societies, Medical standards, Treatment Outcome, Venous Thromboembolism blood, Venous Thromboembolism diagnosis, Venous Thromboembolism etiology, Anticoagulants administration & dosage, Neoplasms complications, Practice Guidelines as Topic standards, Venous Thromboembolism drug therapy
- Abstract
Venous thromboembolism (VTE) is a common disease complication in cancer patients and the second cause of death after cancer progression. VTE management and prophylaxis are critical in cancer patients, but effective therapy can be challenging because these patients are at higher risk of VTE recurrence and bleeding under anticoagulant treatment. Numerous published studies report inconsistent implementation of existing evidence-based clinical practice guidelines (CPG), including underutilization of thromboprophylaxis, and wide variability in clinical practice patterns across different countries and various practitioners. This review aims to summarize the 2019 ITAC-CME evidence-based CPGs for treatment and prophylaxis of cancer-related VTE, which include recommendations on the use of direct oral anticoagulants specifically in cancer patients. The guidelines underscore the gravity of developing VTE in cancer and recommend the best approaches for treating and preventing cancer-associated VTE, while minimizing unnecessary or over-treatment. Greater adherence to the 2019 ITAC guidelines could substantially decrease the burden of VTE and improve survival of cancer patients., (Copyright © 2019 Elsevier Masson SAS. All rights reserved.)
- Published
- 2020
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37. Juvenile temporal arteritis: A clinicopathological multicentric experience.
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Journeau L, Pistorius MA, Michon-Pasturel U, Lambert M, Lapébie FX, Bura-Riviere A, de Faucal P, Jego P, Didier Q, Durant C, Urbanski G, Hervier B, Toquet C, Agard C, and Espitia O
- Subjects
- Adolescent, Adult, Female, Humans, Male, Young Adult, Biopsy, France epidemiology, Headache diagnosis, Headache etiology, Headache therapy, Retrospective Studies, Syndrome, Giant Cell Arteritis diagnosis, Giant Cell Arteritis epidemiology, Giant Cell Arteritis pathology, Giant Cell Arteritis therapy, Temporal Arteries pathology
- Abstract
Introduction: Juvenile temporal arteritis (JTA) is a recently-described and little-known inflammatory disease and its etiology is undetermined. Less than forty cases have been published. This paper is aimed at reporting the largest JTA series and to compare it to literature data to better evaluate its characteristics at diagnosis, its evolution and treatment options., Material and Methods: We conducted a retrospective and descriptive multicentric study in France by identifying adult patients under the age of 50 which had a pathological temporal artery biopsy owing to the presence of a temporal arteritis. Patients with temporal arteritis as a manifestation of systemic vasculitis were excluded., Results: We included 12 patients and the literature review identified 32 cases described in 27 articles, thus a total of 44 patients - 34 men and 10 women - with a median age of 30 and a maximum of 44. All patients presented either a lump in the temporal region or prominent temporal arteries, and 47.7% of patients suffered from headaches. Only 11.4% of patients presented general symptoms and 6.8% a biological inflammatory syndrome; 34.1% had peripheral blood eosinophilia; 83.7% presented a single episode and complete excision without further treatment was documented for 72.7%. Pathology analysis revealed infiltrate of inflammatory cells in the arterial wall in 97.6% of patients but also sparse giant cells for 25% and granuloma for 22.9%, perivascular extension of the inflammation for 82.6%, and presence of lymphoid follicles or germinal centres for 60%. Clinical relapses were present in 16.3% of cases., Conclusion: JTA is a rare, localized and benign disease. The majority of cases have only one episode which is cured by local surgery., (Copyright © 2019 Elsevier B.V. All rights reserved.)
- Published
- 2019
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38. Radiological pleuroparenchymal fibroelastosis associated to limited cutaneous systemic sclerosis: a case report.
- Author
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Hassoun D, Dirou S, Arrigoni PP, Durant C, Hamidou M, Néel A, and Agard C
- Subjects
- Antibodies, Antinuclear blood, Disease Progression, Female, Humans, Middle Aged, Respiratory Function Tests methods, Tomography, X-Ray Computed methods, Lung Diseases, Interstitial diagnosis, Lung Diseases, Interstitial immunology, Parenchymal Tissue diagnostic imaging, Parenchymal Tissue pathology, Pleura diagnostic imaging, Pleura pathology, Pleural Diseases diagnosis, Pleural Diseases immunology, Scleroderma, Limited diagnosis, Scleroderma, Limited immunology, Scleroderma, Systemic diagnosis, Scleroderma, Systemic immunology, Scleroderma, Systemic physiopathology
- Abstract
Background: Pleuroparenchymal fibroelastosis (PPFE) is a very rare interstitial lung disease (ILD) characterized by progressive fibrotic lesions of the visceral pleura and the sub-pleural parenchyma, affecting predominantly the upper lobes. PPFE may occur in different contextes like bone marrow or lung transplantations, but also in the context of telomeropathy with mutations of telomerase reverse transcriptase (TERT), telomerase RNA component (TERC) or regulator of telomere elongation helicase 1 (RTEL1) genes. PPFE-like lesions have recently been described in patients with connective tissue disease (CTD)-related ILD. We report here the first detailed case of PPFE associated to systemic sclerosis (SSc) in a woman free of telomeropathy mutations., Case Presentation: A caucasian 46 year old woman was followed for SSc in a limited form with anti-centromere Ab since 1998, and seen in 2008 for a routine visit. Her SSc was stable, and she had no respiratory signs. Pulmonary function tests showed an isolated decreased cTLCO at 55.9% (of predicted value). Cardiac ultrasonography was normal. Thoracic CT-scan showed upper lobes predominant mild and focal pleural and subpleural thickenings, suggestive of PPFE, with a slight worsening at 8 years of follow-up. She remained clinically stable. Biology only found a moderate and stable peripheral thrombocytopenia, and sequencing analysis did not find any mutations in TERT and TERC genes., Conclusions: ILD is frequent in SSc but isolated PPFE has never been described so far. In our case, PPFE is not related to telomeropathy, has indolent outcome and seems to have good prognosis. PPFE might be an extremely rare form of SSc-related ILD, although a fortuitous association remains possible.
- Published
- 2018
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39. Ultradian rhythmicity of plasma cortisol is necessary for normal emotional and cognitive responses in man.
- Author
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Kalafatakis K, Russell GM, Harmer CJ, Munafo MR, Marchant N, Wilson A, Brooks JC, Durant C, Thakrar J, Murphy P, Thai NJ, and Lightman SL
- Subjects
- Adult, Humans, Male, Brain metabolism, Cognition physiology, Emotions physiology, Glucocorticoids metabolism, Hydrocortisone administration & dosage, Hydrocortisone pharmacokinetics
- Abstract
Glucocorticoids (GCs) are secreted in an ultradian, pulsatile pattern that emerges from delays in the feedforward-feedback interaction between the anterior pituitary and adrenal glands. Dynamic oscillations of GCs are critical for normal cognitive and metabolic function in the rat and have been shown to modulate the pattern of GC-sensitive gene expression, modify synaptic activity, and maintain stress responsiveness. In man, current cortisol replacement therapy does not reproduce physiological hormone pulses and is associated with psychopathological symptoms, especially apathy and attenuated motivation in engaging with daily activities. In this work, we tested the hypothesis that the pattern of GC dynamics in the brain is of crucial importance for regulating cognitive and behavioral processes. We provide evidence that exactly the same dose of cortisol administered in different patterns alters the neural processing underlying the response to emotional stimulation, the accuracy in recognition and attentional bias toward/away from emotional faces, the quality of sleep, and the working memory performance of healthy male volunteers. These data indicate that the pattern of the GC rhythm differentially impacts human cognition and behavior under physiological, nonstressful conditions and has major implications for the improvement of cortisol replacement therapy., Competing Interests: The authors declare no conflict of interest.
- Published
- 2018
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40. Scleroderma renal crisis and cancer.
- Author
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Crosnier C, Achille A, Lecouffe-Desprets M, Néel A, Durant C, and Agard C
- Subjects
- Aged, Antibodies, Antinuclear blood, Fatal Outcome, Female, Glomerular Filtration Rate, Humans, Male, Positron-Emission Tomography, Acute Kidney Injury complications, Acute Kidney Injury etiology, Carcinoma diagnostic imaging, Scleroderma, Systemic complications
- Published
- 2018
- Full Text
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41. [Late-onset systemic sclerosis: A retrospective study of 27 patients diagnosed after the age of 70].
- Author
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Achille A, Journeau L, Espitia O, Connault J, Espitia-Thibault A, Durant C, Perrin F, Pistorius MA, Néel A, Hamidou M, and Agard C
- Subjects
- Aged, Aged, 80 and over, Female, Follow-Up Studies, France epidemiology, Gastroesophageal Reflux complications, Humans, Late Onset Disorders mortality, Lung Diseases, Interstitial complications, Male, Retrospective Studies, Risk Factors, Scleroderma, Systemic complications, Scleroderma, Systemic mortality, Skin Neoplasms complications, Skin Neoplasms mortality, Skin Ulcer complications, Telangiectasis complications, Internal Medicine, Late Onset Disorders diagnosis, Scleroderma, Systemic diagnosis, Skin Neoplasms diagnosis
- Abstract
Background: The aim of this study was to describe special features of patients with systemic sclerosis (SSc) diagnosed after the age of 70., Patients and Methods: This is a retrospective study of patients aged above 70 years at the time of diagnosis of SSc and followed at an internal medicine unit between 2000 and 2015. Co-morbidities and clinical characteristics were analyzed, as well as survival at 1, 2 and 3 years., Results: Of 246 patients, 27 (11%) were included (89% women, 96% Caucasians, age 78.3±4.5 years). Synchronous cancer was noted in 3 patients. SSc was mostly limited cutaneous only (24/27), with telangiectasia (63%), gastroesophageal reflux (59%) and digital ulcers (22%), and was associated with anti-centromere antibody (69%). Interstitial lung disease was not frequent (29%). Pulmonary arterial hypertension (PAH) was suspected at diagnosis of SSc in 14 cases (52%), but only 5 patients had undergone heart catheterization, with severe PAH in 3 cases. Survival at 1 and 3 years was 85.2% and 66.7%, and was worse in the case of suspected PAH, at 78.6% and 57.1% respectively., Conclusion: Cases of SSc diagnosed after 70 years are mostly limited cutaneous forms. Suspicion of PAH is frequent, and PAH may be the main initial sign of the disease for patients at this age. There may be association with synchronous cancer. Survival is poor., (Copyright © 2017 Elsevier Masson SAS. All rights reserved.)
- Published
- 2018
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42. Effect of Increased Amounts of Fe, Zn, and Cd on Uptake, Translocation, and Accumulation of Human Health Related Micronutrients in Wheat.
- Author
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Hossain KG, Islam N, Ghavami F, Durant C, Durant C, and Johnson M
- Abstract
Agricultural Scientists has lifted the crop production many folds' overs last 100 years but nutritive quality of crop products has not been addressed accordingly as a result humans in many parts of the world are suffering from malnutrition. The efficient improvement of nutritive quality of important crop species like wheat is dependent on the understanding of the acquisition of micronutrients from soil environment and subsequent translocation and distribution into different tissues. The objectives of this work were to understand the effect of increased concentrations of Fe, Zn, and Cd 1) on overall mineral and metal concentrations, 2) on acquisition, translocation, and distribution of minerals among different tissues, and 3) on the inter-relationship of the minerals and metals as reflected in changing the relationship pattern in wheat. The application of increased concentrations of Fe and Zn resulted in three and 11 folds' increase of these micronutrients in wheat respectively and significantly increased seed Ca, P, and S contents however acquisition and translocation of 20 mineral elements varied from tissue to tissue. The improvement of major crop species for health-related micronutrient is important for combating world- wide malnutrition problem. The higher concentration of one micronutrient element may not always ensure higher concentration of that element in seed but increase concentration of Fe and Zn may ensure higher concentrations of others important minerals in wheat seed. The results from our research unveiled key aspects on interrelation among some minerals and metals due to higher concentration of Fe, Zn, and Cd application in wheat.
- Published
- 2017
43. Pretreatment of Wheat Bran for Suitable Reinforcement in Biocomposites.
- Author
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Rahman A, Ulven CA, Johnson MA, Durant C, and Hossain KG
- Abstract
Wheat bran, abundant but underutilized, was investigated for its potential as a reinforcement in biocomposites through different pretreatment methods. Pretreatment methods included were dilute sodium hydroxide (NaOH), dilute sulfuric acid (H
2 SO4 ), liquid hot water (LHW), calcium hydroxide (CaOH), organosolv such as aqueous ethanol (EtOH), and methyl isobutyl ketone (MIBK). Changes in chemical composition and fiber characteristics of the treated bran were studied using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Cellulose content increased to 35.1% and 29.6% in brans treated with H2 SO4 and NaOH, respectively. The SEM micrographs showed surface cleaning of treated bran while maintaining sufficient surface roughness for the H2 SO4 , NaOH, and MIBK treated brans. Crystallinity index increased slightly for all treatments except H2 SO4 . NaOH and H2 SO4 pretreated brans achieved important fiber characteristics, which could be useful for making thermoplastic biocomposites. Innovative use of bran in thermoplastic will create more opportunities for growers while enhancing biodegradability.- Published
- 2017
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44. [Three cases of Jaccoud's arthropathy during systemic sclerosis].
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Najm A, Le Goff B, Achille A, Espitia O, Durant C, Perrin F, and Agard C
- Subjects
- Aged, Aged, 80 and over, Female, Hand Deformities, Acquired diagnostic imaging, Hand Deformities, Acquired etiology, Humans, Joint Diseases diagnostic imaging, Joint Diseases etiology, Scleroderma, Systemic complications, Scleroderma, Systemic diagnostic imaging, Hand Deformities, Acquired diagnosis, Joint Diseases diagnosis, Scleroderma, Systemic diagnosis
- Abstract
Introduction: Jaccoud's arthropathy (JA) is a chronic and non-erosive deforming arthropathy, usually affecting the hands. JA pathophysiology is poorly known but involves periarticular structures such as tendons and the joint capsule. JA is associated with various conditions including the connective tissue disease, especially systemic lupus erythematosis. JA has been rarely described and studied in systemic sclerosis., Case Reports: We report the clinical histories of 3 patients with systemic sclerosis (ScS) who developed JA. One patient had a systemic limited disease and the 2 others a cutaneous limited disease ; mean age of the patients was 79.3 years. Systemic sclerosis was diagnosed respectively 19, 1 and 21 years prior to the development of JA. One of the 3 patients had a past clinical history of discoid lupus. For 1 out of the 3 patients, JA appeared whereas the ScS was completely stable. The disease was still active in the 2 remaining patients, with concurrent pulmonary hypertension diagnosis. Deformities increased during years (Z thumbs, ulnar deviation), leading to mild to severe disability. No benefit from either prednisone (n=2) or a combination of prednisone and methotrexate (n=1) was obtained., Conclusion: We described 3 cases of Jaccoud's arthropathy among our scleroderma cohort of 296 patients (1%). This arthropathy worsens hand functional disability. Its pathophysiology is unknown and optimal therapeutic approach remains to establish., (Copyright © 2016 Société Nationale Française de Médecine Interne (SNFMI). Published by Elsevier SAS. All rights reserved.)
- Published
- 2016
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45. Unilateral Carotid Body Resection in Resistant Hypertension: A Safety and Feasibility Trial.
- Author
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Narkiewicz K, Ratcliffe LE, Hart EC, Briant LJ, Chrostowska M, Wolf J, Szyndler A, Hering D, Abdala AP, Manghat N, Burchell AE, Durant C, Lobo MD, Sobotka PA, Patel NK, Leiter JC, Engelman ZJ, Nightingale AK, and Paton JF
- Abstract
Animal and human data indicate pathological afferent signaling emanating from the carotid body that drives sympathetically mediated elevations in blood pressure in conditions of hypertension. This first-in-man, proof-of-principle study tested the safety and feasibility of unilateral carotid body resection in 15 patients with drug-resistant hypertension. The procedure proved to be safe and feasible. Overall, no change in blood pressure was found. However, 8 patients showed significant reductions in ambulatory blood pressure coinciding with decreases in sympathetic activity. The carotid body may be a novel target for treating an identifiable subpopulation of humans with hypertension.
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- 2016
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46. Comparison of idiopathic (isolated) aortitis and giant cell arteritis-related aortitis. A French retrospective multicenter study of 117 patients.
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Espitia O, Samson M, Le Gallou T, Connault J, Landron C, Lavigne C, Belizna C, Magnant J, de Moreuil C, Roblot P, Maillot F, Diot E, Jégo P, Durant C, Masseau A, Brisseau JM, Pottier P, Espitia-Thibault A, Santos AD, Perrin F, Artifoni M, Néel A, Graveleau J, Moreau P, Maisonneuve H, Fau G, Serfaty JM, Hamidou M, and Agard C
- Subjects
- Aged, Aortic Aneurysm pathology, Aortitis pathology, France, Giant Cell Arteritis pathology, Humans, Prognosis, Retrospective Studies, Aortic Aneurysm diagnosis, Aortitis diagnosis, Giant Cell Arteritis diagnosis
- Abstract
Objectives: The aim of the study was to compare clinical/imaging findings and outcome in patients with idiopathic (isolated aortitis, IA) and with giant cell arteritis (GCA)-related aortitis., Methods: Patients from 11 French internal medicine departments were retrospectively included. Aortitis was defined by aortic wall thickening >2mm and/or an aortic aneurysm on CT-scan, associated to inflammatory syndrome. Patients with GCA had at least 3 ACR criteria. Aortic events (aneurysm, dissection, aortic surgeries) were reported, and free of aortic events-survival were compared., Results: Among 191 patients with non-infectious aortitis, 73 with GCA and 44 with IA were included. Patients with IA were younger (65 vs 70 years, p=0.003) and comprised more past/current smokers (43 vs 15%, p=0.0007). Aortic aneurisms were more frequent (38% vs 20%, p=0.03), and aortic wall thickening was more pronounced in IA. During follow-up (median=34 months), subsequent development of aortic aneurysm was significantly lower in GCA when compared to IA (p=0.009). GCA patients required significantly less aortic surgery during follow-up than IA patients (p=0.02). Mean age, sex ratio, inflammatory parameters, and free of aortic aneurism survival were equivalent in patients with IA ≥ 60 years when compared to patients with GCA-related aortitis., Conclusions: IA is more severe than aortitis related to GCA, with higher proportions of aortic aneurism at diagnosis and during follow-up. IA is a heterogeneous disease and its prognosis is worse in younger patients <60 years. Most patients with IA ≥ 60 years share many features with GCA-related aortitis., (Copyright © 2016 Elsevier B.V. All rights reserved.)
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- 2016
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47. [Qualitative and quantitative evaluation of an internal medicine assistance line dedicated to the diagnosis and treatment of diseases for general practice].
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Castillo JM, Agard C, Artifoni M, Brisseau JM, Connault J, Durant C, Espitia O, Masseau A, Neel A, Perrin F, Pistorius MA, Planchon B, Ponge T, Hamidou M, and Pottier P
- Subjects
- Adult, Aged, Clinical Decision-Making methods, Cross-Sectional Studies, Disease, Female, France epidemiology, Humans, Male, Middle Aged, General Practice methods, General Practice organization & administration, General Practice standards, Hotlines statistics & numerical data, Internal Medicine methods, Internal Medicine organization & administration, Internal Medicine standards, Telemedicine methods, Telemedicine standards, Telephone
- Abstract
Purpose: Clinical reasoning and treatment challenges within the scope of general practice led to the development of an internal medicine assistance line provided by Nantes University Hospital. The primary outcome of this study was to describe callers' profile, their requests and answers provided., Methods: A prospective, cross-sectional, observational, descriptive study was undertaken. For each call were identified the calling physician, her/his specialty and work setting, the call's object and adequacy, the answer provided, the time needed to connect with the assistance line, the time devoted by the internal medicine physician to provide an answer to the request, and whether the assistance line prevented a visit to the emergency room. Each calling physician was then called back to obtain demographic and professional characteristics, and data relating to the call and to the assistance line., Results: Sixty-three days were analyzed and 276 calls identified. The 237 identified calling physicians were mainly females (54%, n=93), with a mean age of 46 years, graduated from Nantes University (65%, n=86), practicing ambulatory general medicine (69%, n=164) in Loire-Atlantique department area (82%, n=176) for a mean duration of 15 years. Calls were mostly associated with diagnostic challenges (61%, n=166) concerning clinical issues (57%, n=155). A sole telephone advice was the main type of answer provided (56%, n=147) and a visit to the emergency room was prevented for 17% of calls., Conclusion: The assistance line activity is adequate with its missions and seems to facilitate patients' healthcare delivery advocating for the development of similar structures in other units. Improvements relating to the information, availability and physicians' training should be considered., (Copyright © 2015 Société nationale française de médecine interne (SNFMI). Published by Elsevier SAS. All rights reserved.)
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- 2016
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48. Validated Method for the Quantification of Baclofen in Human Plasma Using Solid-Phase Extraction and Liquid Chromatography-Tandem Mass Spectrometry.
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Nahar LK, Cordero RE, Nutt D, Lingford-Hughes A, Turton S, Durant C, Wilson S, and Paterson S
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- Adult, Baclofen administration & dosage, Baclofen blood, Deuterium chemistry, GABA-B Receptor Agonists administration & dosage, GABA-B Receptor Agonists blood, Humans, Hydrogen-Ion Concentration, Limit of Detection, Male, Young Adult, Baclofen analysis, Chromatography, High Pressure Liquid methods, GABA-B Receptor Agonists analysis, Solid Phase Extraction, Tandem Mass Spectrometry methods
- Abstract
A highly sensitive and fully validated method was developed for the quantification of baclofen in human plasma. After adjusting the pH of the plasma samples using a phosphate buffer solution (pH 4), baclofen was purified using mixed mode (C8/cation exchange) solid-phase extraction (SPE) cartridges. Endogenous water-soluble compounds and lipids were removed from the cartridges before the samples were eluted and concentrated. The samples were analyzed using triple-quadrupole liquid chromatography-tandem mass spectrometry (LC-MS-MS) with triggered dynamic multiple reaction monitoring mode for simultaneous quantification and confirmation. The assay was linear from 25 to 1,000 ng/mL (r(2) > 0.999; n = 6). Intraday (n = 6) and interday (n = 15) imprecisions (% relative standard deviation) were <5%, and the average recovery was 30%. The limit of detection of the method was 5 ng/mL, and the limit of quantification was 25 ng/mL. Plasma samples from healthy male volunteers (n = 9, median age: 22) given two single oral doses of baclofen (10 and 60 mg) on nonconsecutive days were analyzed to demonstrate method applicability., (© The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
- Published
- 2016
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49. Effects of the pattern of glucocorticoid replacement on neural processing, emotional reactivity and well-being in healthy male individuals: study protocol for a randomised controlled trial.
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Kalafatakis K, Russell GM, Harmer CJ, Munafo MR, Marchant N, Wilson A, Brooks JC, Thai NJ, Ferguson SG, Stevenson K, Durant C, Schmidt K, and Lightman SL
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- Adolescent, Adult, Brain physiology, Cross-Over Studies, Hormone Replacement Therapy, Humans, Male, Middle Aged, Neuroimaging, Brain drug effects, Clinical Protocols, Emotions drug effects, Hydrocortisone pharmacology
- Abstract
Background: Deviation from the physiological glucocorticoid dynamics (circadian and underlying ultradian rhythmicity) is a common characteristic of various neuropsychiatric and endocrine disorders as well as glucocorticoid-based therapeutics. These states may be accompanied by neuropsychiatric symptomatology, suggesting continuous dynamic glucocorticoid equilibrium is essential for brain homeostasis., Methods/design: The study consists of two parts. The preliminary stage of the study aims to validate (technically and pharmacologically) and optimise three different patterns of systemic cortisol administration in man. These patterns are based on the combinatory administration of metyrapone, to suppress endogenous cortisol production, and concurrent hydrocortisone replacement. The second, subsequent, core part of the study is a randomised, double-blinded, placebo-controlled, crossover study, where participants (healthy male individuals aged 18-60 years) will undergo all three hydrocortisone replacement schemes. During these infusion regimes, we plan a number of neurobehavioural tests and imaging of the brain to assess neural processing, emotional reactivity and perception, mood and self-perceived well-being. The psychological tests include: ecological momentary assessment, P1vital Oxford Emotional Test Battery and Emotional Potentiated Startle Test, Leeds Sleep Evaluation Questionnaire and the visual working memory task (n-back). The neuroimaging protocol combines magnetic resonance sequences that capture data related to the functional and perfusion status of the brain., Discussion: Results of this clinical trial are designed to evaluate the impact (with possible mechanistic insights) of different patterns of daily glucocorticoid dynamics on neural processing and reactivity related to emotional perception and mood. This evidence should contribute to the optimisation of the clinical application of glucocorticoid-based therapeutics., Trial Registration: UK Clinical Research Network, IRAS Ref: 106181, UKCRN-ID-15236 (23 October 2013).
- Published
- 2016
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50. Genetics, sleep and memory: a recall-by-genotype study of ZNF804A variants and sleep neurophysiology.
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Hellmich C, Durant C, Jones MW, Timpson NJ, Bartsch U, and Corbin LJ
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- Adult, Brain physiology, Healthy Volunteers psychology, Humans, Longitudinal Studies, Male, Pilot Projects, Polysomnography methods, Schizophrenia genetics, Schizophrenia physiopathology, Surveys and Questionnaires, Young Adult, Kruppel-Like Transcription Factors genetics, Memory Consolidation physiology, Motor Activity physiology, Polymorphism, Single Nucleotide, Sleep physiology
- Abstract
Background: Schizophrenia is a complex, polygenic disorder for which over 100 genetic variants have been identified that correlate with diagnosis. However, the biological mechanisms underpinning the different symptom clusters remain undefined. The rs1344706 single nucleotide polymorphism within ZNF804A was among the first genetic variants found to be associated with schizophrenia. Previously, neuroimaging and cognitive studies have revealed several associations between rs1344706 and brain structure and function. The aim of this study is to use a recall-by-genotype (RBG) design to investigate the biological basis for the association of ZNF804A variants with schizophrenia. A RBG study, implemented in a population cohort, will be used to evaluate the impact of genetic variation at rs1344706 on sleep neurophysiology and procedural memory consolidation in healthy participants., Methods/design: Participants will be recruited from the Avon Longitudinal Study of Parents and Children (ALSPAC) on the basis of genotype at rs1344706 (n = 24). Each participant will be asked to take part in two nights of in-depth sleep monitoring (polysomnography) allowing collection of neurophysiological sleep data in a manner not amenable to large-scale study. Sleep questionnaires will be used to assess general sleep quality and subjective sleep experience after each in-house recording. A motor sequencing task (MST) will be performed before and after the second night of polysomnography. In order to gather additional data about habitual sleep behaviour participants will be asked to wear a wrist worn activity monitor (actiwatch) and complete a sleep diary for two weeks., Discussion: This study will explore the biological function of ZNF804A genotype (rs1344706) in healthy volunteers by examining detailed features of sleep architecture and physiology in relation to motor learning. Using a RBG approach will enable us to collect precise and detailed phenotypic data whilst achieving an informative biological gradient. It would not be feasible to collect such data in the large sample sizes that would be required under a random sampling scheme. By dissecting the role of individual variants associated with schizophrenia in this way, we can begin to unravel the complex genetic mechanisms of psychiatric disorders and pave the way for future development of novel therapeutic approaches.
- Published
- 2015
- Full Text
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