63 results on '"Gabriel MT"'
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2. Safety and Efficacy of a New Regimen in Homogenizing and Brightening Skin Complexion Among Filipino Women
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Gabriel Mt, Vitale M, Chan Hp, Chan Gp, and Truchuelo Mt
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Regimen ,medicine.medical_specialty ,business.industry ,medicine ,Complexion ,business ,Dermatology - Published
- 2017
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3. A Cosmeceutical Retinoid-Based Depigmentant Formula for Different Skin Types and Ethnicities
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Gabriel Mt, Truchuelo Mt, Nobile, Vitale M, García-Millán C, and García K
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medicine.medical_specialty ,medicine.drug_class ,business.industry ,medicine ,Retinoid ,business ,Dermatology ,Cosmeceutical - Published
- 2018
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4. Prioritising patient-centred care in the management of chronic urticaria in Asia-Pacific countries.
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Tiongco-Recto M, Woo K, Chung WH, Chua GT, Godse K, Gabriel MT, Headley A, Chew Kek IL, Kulthanan K, Lao-Araya M, Ma L, My LH, Wananukul S, and Nagrale D
- Abstract
Background: Chronic urticaria (CU), in both inducible and spontaneous forms, is associated with a substantial burden in the Asia-Pacific region (APAC). Patient-centred care recognises patients desire to be involved in decisions regarding their health. Although patient-centred approaches have previously not been studied in the context of CU management, they have demonstrated benefits in the management of other chronic conditions., Methods: Information and opinions regarding the barriers and solutions to the implementation of patient-centred approaches to the management of CU were gathered from a group of 13 expert dermatologists and allergist/immunologists from APAC through surveys and a face-to-face meeting., Results: Barriers identified there included a lack of awareness of CU amongst patients, delays in consulting healthcare providers, financial constraints, and low adherence. Particular issues raised included a lack of suitable online information for patients (83% of experts), and patients accessing oral corticosteroids without a prescription. Compliance issues were also identified as key reasons for inadequate responses to treatments (67% of experts). Solutions proposed by the authors were improving patients' knowledge about their condition (92% strongly agree, 8% agree), physicians' consideration of patient characteristics when choosing treatments (92% strongly agree, 8% agree), implementing shared decision-making (85% strongly agree, 15% agree), and using patient-reported outcome measures (70% strongly agree, 23% agree)., Conclusion: Expert opinion within APAC supports the use of patient-centred approaches to improve the management of CU. We provide several recommendations focusing on patient education and involvement in disease management as well as disease monitoring methods that can be implemented by physicians in APAC., Competing Interests: The authors received honoraria and support from A. Menarini Asia Pacific Pte Ltd for transportation and accommodation for the STAR Network meeting. A. Menarini also provided support staff at the meeting and funded medical writing support from Clarivate for the development of the manuscript. MTR also reports the following outside of the submitted work: payments or honoraria from A. Menarini to act as an advisory board member; payments or honoraria from Bayer and Cathay Drug to act as a speaker; and support from A. Menarini, Cathay Drug, and United Laboratories Philippines to attend meetings and international allergy conferences. KW also reports the following outside of the submitted work: payments/honoraria and support for attending meetings from A. Menarini. KK also reports the following outside of the submitted work: payments or honoraria for speaking/presenting from A. Menarini, Novartis, and Sandoz; and support for attending meetings from A. Menarini. ML also reports the following outside of the submitted work: honoraria for educational lectures from GSK, AstraZeneca, A. Menarini, Sanofi, and Takeda. DN works with A. Menarini Asia Pacific Pte Ltd. and was involved in facilitating the expert meeting. The remaining authors report no additional disclosures outside of the submitted work., (© 2024 The Authors.)
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- 2024
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5. Efficacy and Safety of Makabuhay (Tinospora rumphii) 25% Cream Versus Hydrocortisone 1% Cream in the Management of Mosquito Bite Reactions: Randomized Double-Blind Controlled Trial.
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Gatmaitan JG, Gatmaitan-Dumlao JKG, Dayrit J, and Gabriel MT
- Abstract
Background: Most insect bite reactions resolve spontaneously, but the inflammation and pruritus induced have been shown to decrease the quality of life. Previous studies have shown the potential anti-inflammatory properties of Tinospora rumphii., Objective: The aim of the study is to assess the efficacy and safety of T rumphii 25% cream versus hydrocortisone 1% cream in the management of local cutaneous reactions caused by mosquito bites., Methods: This study was a parallel-group, double-blind, randomized, placebo-controlled trial with a 1-week duration in a span of 3 months (June 2019 to August 2019). Participants were exposed to sterile noninfectious mosquitoes (Aedes aegypti) for 5-10 minutes to elicit cutaneous lesions. Tinospora 25% cream or hydrocortisone 1% cream was applied twice daily throughout the 7-day study period. Of the 70 participants screened for this study, which was approved by an institutional review board (IRB 2019-07) at the Dermatology Outpatient Department of the Research Institute for Tropical Medicine, Alabang, Muntinlupa, Philippines, 58 participants in total met the inclusion criteria and were randomized to treatment (Tinospora: n=29) and active control (hydrocortisone: n=29) groups., Results: In total, 58 participants were randomized to receive Tinospora cream (n=29) or hydrocortisone cream (n=29). All participants completed the follow-up. There was a significant decrease in lesion size in both groups from the first 15 minutes to day 7 (P<.001). Comparing the lesion size in both groups, there was a statistically significant decrease in lesion size in the first hour (P=.003) and after 24 hours (P=.03). On day 1, 10% (n=29) of participants in the hydrocortisone group and 7% (n=29) in the Tinospora group experienced complete resolution. On day 3, all participants experienced complete resolution. No adverse effects were documented., Conclusions: Tinospora 25% cream is safe, effective, and comparable to hydrocortisone 1% cream as an anti-inflammatory agent for mosquito bite reactions based on the decrease in lesion size, the proportion of participants with complete resolution of wheals, and improvement in pruritus intensity score using a visual analog scale. Long-term safety studies are recommended., Trial Registration: Philippine Health Research Registry PHRR230716-005932; https://www.herdin.ph/index.php/registry?view=research&layout=details&cid=5932., (©Julius Garcia Gatmaitan, Jolene Kristine Garcia Gatmaitan-Dumlao, Johannes Dayrit, Ma Teresita Gabriel. Originally published in JMIR Dermatology (http://derma.jmir.org), 08.11.2023.)
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- 2023
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6. Experience with bilastine in the management of urticaria: Original Real-world cases of Bilastine In Treatment (ORBIT) in Asia.
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Cheong WK, Chan AWM, Ch'ng CC, Chung WH, Gabriel MT, Godse K, Mitthamsiri W, Nguyen HT, Tiongco-Recto M, and Nagrale D
- Abstract
Urticaria is a disabling condition, resulting in an impaired quality of life and sleep disruption, and can have an adverse impact on work-related or school-related performance and attendance. It is defined according to the presence of unknown (chronic spontaneous urticaria) or known (inducible urticaria) eliciting factors. Guidelines recommend second-generation H
1 -antihistamines for the first-line treatment of urticaria. Bilastine is indicated in adults, adolescents (aged ≥12 years) and children (aged ≥2 years (Mexico and some African countries), ≥4 years (Canada) or ≥6 years (Europe)) with a body weight of at least 20 kg for the symptomatic treatment of urticaria and allergic rhino-conjunctivitis. The aim of the Original Real-world cases of Bilastine In Treatment (ORBIT) study was to review real-world cases from across the Asia-Pacific region supported by evidence-based literature. Eight diverse, real-world, difficult-to-treat cases with urticaria in people aged 10-75 years are presented. Once-daily bilastine (20 mg (adults/adolescents) or 10 mg (children)) was found to be well tolerated and effective in the long-term management of chronic spontaneous urticaria and inducible urticaria., Competing Interests: Disclosure and potential conflicts of interest: WKC has served as an advisory board member for A. Menarini and been a speaker for and received honoraria from Johnson & Johnson, Novartis and A. Menarini. HTN served as an advisory board member and speaker, receiving honoraria from Novartis, Janssen and A. Menarini. MTR disclosed non-financial interests for A. Menarini for acting as an advisory board member and speaker, has received support from A. Menarini for registration at conventions, and is the immediate Past President of the Philippine Society of Allergy, Asthma and Immunology (unpaid). CCC received an honorarium from A. Menarini. MTG received honoraria from A. Menarini for lectures and has acted in an unpaid role on an advisory board for A. Menarini. KG has received honoraria from A. Menarini and received support from A. Menarini for the present manuscript. WM received support from A. Menarini for writing the present manuscript, has received honoraria from A. Menarini for lectures and panel discussion, and from GlaxoSmithKline, Organon and AstraZeneca for lectures, and has received registration support from GlaxoSmithKline and Organon for attending virtual academic meetings. AWMC and WHC had no conflicts of interest to disclose. DN is an employee of A. Menarini. The International Committee of Medical Journal Editors (ICMJE) Potential Conflicts of Interests form for the authors is available for download at: https://www.drugsincontext.com/wp-content/uploads/2022/03/dic.2021-12-2-COI.pdf, (Copyright © 2022 Cheong WK, Chan AWM, Ch’ng CC, Chung WH, Gabriel MT, Godse K, Mitthamsiri W, Nguyen HT, Tiongco-Recto M, Nagrale D.)- Published
- 2022
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7. The expression of the long NEAT1_2 isoform is associated with human epidermal growth factor receptor 2-positive breast cancers.
- Author
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Knutsen E, Lellahi SM, Aure MR, Nord S, Fismen S, Larsen KB, Gabriel MT, Hedberg A, Bjørklund SS, Bofin AM, Mælandsmo GM, Sørlie T, Mortensen ES, and Perander M
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- Breast Neoplasms pathology, Female, Humans, MCF-7 Cells, Breast Neoplasms metabolism, Gene Expression Regulation, Neoplastic, RNA, Long Noncoding biosynthesis, RNA, Neoplasm biosynthesis
- Abstract
The long non-coding RNA NEAT1 locus is transcribed into two overlapping isoforms, NEAT1_1 and NEAT1_2, of which the latter is essential for the assembly of nuclear paraspeckles. NEAT1 is abnormally expressed in a wide variety of human cancers. Emerging evidence suggests that the two isoforms have distinct functions in gene expression regulation, and recently it was shown that NEAT1_2, but not NEAT1_1, expression predicts poor clinical outcome in cancer. Here, we report that NEAT1_2 expression correlates with HER2-positive breast cancers and high-grade disease. We provide evidence that NEAT1_1 and NEAT1_2 have distinct expression pattern among different intrinsic breast cancer subtypes. Finally, we show that NEAT1_2 expression and paraspeckle formation increase upon lactation in humans, confirming what has previously been demonstrated in mice.
- Published
- 2020
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8. Loss of miR-198 and -206 during primary tumor progression enables metastatic dissemination in human osteosarcoma.
- Author
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Georges S, Calleja LR, Jacques C, Lavaud M, Moukengue B, Lecanda F, Quillard T, Gabriel MT, Cartron PF, Baud'huin M, Lamoureux F, Heymann D, and Ory B
- Abstract
The metastatic dissemination is a complex multistep process by which tumor cells from a primary site enter into the systemic circulation to finally spread at distant sites. Even if this mechanism is rare at the tumor level, it remains the major cause of Osteosarcoma-patients' relapse and mortality. MicroRNAs (miRNAs) have recently been described as novel epigenetics' genes' expression regulators actively implicated in cancer progression and dissemination. The understanding of their implication in the metastatic spreading could help clinicians to improve the outcome of osteosarcoma. We established the miRNA's expression-profile between primary bone-tumors (PTs), circulating tumor cells (CTCs) and lung metastatic (META) samples from in vivo mice xenograft models. Our results show that the expression level of the miR-198 and -206 was decreased in META samples, in which the expression of the metastasis-related receptor C-Met was up-regulated. Those expression variations were validated in osteosarcoma patient biopsies from matching primary tumors and lung metastasis. We validated in vitro the endogenous miRNAs inhibitory effects on both migration and invasion, as well as we confirmed by luciferase assays that the C-Met receptor is one of their bona-fide targets. The anti-metastatic effect of these miRNAs was also validated in vivo , as their direct injections into the tumors reduce the number of lung-metastases and prolongs the overall survival of the treated animals. All together, our results suggest the absence of the miR-198 and -206 as powerful predictive biomarkers of the tumor cell dissemination and the rationale of their potential therapeutic use in the treatment of Osteosarcoma., Competing Interests: CONFLICTS OF INTEREST None of the authors has any financial interest in relation to this study
- Published
- 2018
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9. Economic Burden of the Inadequate Management of Allergic Rhinitis and Urticaria in Asian Countries Based on the GA²LEN Model.
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Kulthanan K, Chusakul S, Recto MT, Gabriel MT, Aw DCW, Prepageran N, Wong A, Leong JL, Foong H, Quang VT, and Zuberbier T
- Abstract
Purpose: Across Hong Kong, Malaysia, the Philippines, Singapore, Thailand and Vietnam, (referred to as Asia) approximately 30-53 million individuals of the 151 million employed suffer from allergic rhinitis (AR) and urticaria. It is estimated that approximately 90% of patients with these allergic conditions are insufficiently treated, impacting the socioeconomic burden in terms of absence from work and decreased productivity. This study aims to estimate the socioeconomic burden of allergies in Asia and the cost savings that their adequate management can provide. Due to the limited availability of regional data, this study focused AR and urticaria in selected countries., Methods: Published literature, information from statistical bureaus, clinician surveys and extrapolation of selected data from the European Union were used to determine the socioeconomic costs of AR and urticaria., Results: Many patients in Asia suffer from perennial allergies and experience symptoms of AR and urticaria for up to 298 days per year. An estimate of the indirect costs of patients insufficiently treated for AR and urticaria amounts to USD 105.4 billion a year, which equates to USD 1,137-2,195 per patient due to absenteeism and presenteeism. Adherence to guideline-approved treatment can lead to estimated savings of up to USD 104 billion., Conclusions: The current study suggests that within Asia, the socioeconomic impact of AR and urticaria is similar to that seen in the European Union in spite of the lower wages in Asia. This is due to the mainly perennial allergens prevailing in Asia, whereas the sensitization patterns observed in the European Union are dominated by seasonal exposure to pollen. These results underline the need for governmental initiatives to increase public awareness on the prevention and treatment of these and other allergic diseases as well as greater research funding and large-scale studies to reduce their growing socioeconomic burden in coming years., Competing Interests: There are no financial or other issues that might lead to conflict of interest., (Copyright © 2018 The Korean Academy of Asthma, Allergy and Clinical Immunology · The Korean Academy of Pediatric Allergy and Respiratory Disease.)
- Published
- 2018
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10. Selecting optimal second-generation antihistamines for allergic rhinitis and urticaria in Asia.
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Recto MT, Gabriel MT, Kulthanan K, Tantilipikorn P, Aw DC, Lee TH, Chwen CC, Mutusamy S, Hao NT, Quang VT, and Canonica GW
- Abstract
Background: Allergic diseases are on the rise in many parts of the world, including the Asia-Pacific (APAC) region. Second-generation antihistamines are the first-line treatment option in the management of allergic rhinitis and urticaria. International guidelines describe the management of these conditions; however, clinicians perceive the additional need to tailor treatment according to patient profiles. This study serves as a consensus of experts from several countries in APAC (Hong Kong, Malaysia, the Philippines, Singapore, Thailand, Vietnam), which aims to describe the unmet needs, practical considerations, challenges, and key decision factors when determining optimal second-generation antihistamines for patients with allergic rhinitis and/or urticaria., Methods: Specialists from allergology, dermatology, and otorhinolaryngology were surveyed on practical considerations and key decision points when treating patients with allergic rhinitis and/or urticaria., Results: Clinicians felt the need for additional tools for diagnosis of these diseases and a single drug with all preferred features of an antihistamine. Challenges in treatment include lack of clinician and patient awareness and compliance, financial constraints, and treatment for special patient populations such as those with concomitant disease. Selection of optimal second-generation antihistamines depends on many factors, particularly drug safety and efficacy, impact on psychomotor abilities, and sedation. Country-specific considerations include drug availability and cost-effectiveness. Survey results reveal bilastine as a preferred choice due to its high efficacy and safety, suitability for special patient populations, and the lack of sedative effects., Conclusions: Compliance to the international guidelines is present among allergists, dermatologists and otorhinolaryngologists; however, this is lower amongst general practitioners (GPs). To increase awareness, allergy education programs targeted at GPs and patients may be beneficial. Updates to the existing international guidelines are suggested in APAC to reflect appropriate management for different patient profiles and varying symptoms of allergic rhinitis and urticaria.
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- 2017
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11. Hypothermia Increases Tissue Plasminogen Activator Expression and Decreases Post-Operative Intra-Abdominal Adhesion.
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Lee MT, Lee CC, Wang HM, Chou TH, Wu MC, Hsueh KL, and Chen SC
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- Animals, Body Fluids metabolism, Male, Mice, Mice, Inbred BALB C, Abdomen surgery, Hypothermia metabolism, Tissue Adhesions prevention & control, Tissue Plasminogen Activator metabolism
- Abstract
Background: Therapeutic hypothermia during operation decreases postoperative intra-abdominal adhesion formation. We sought to determine the most appropriate duration of hypothermia, and whether hypothermia affects the expression of tissue plasminogen activator (tPA)., Methods: 80 male BALB/c mice weighing 25-30 g are randomized into one of five groups: adhesion model with infusion of 15°C saline for 15 minutes (A); 30 minutes (B); 45 minute (C); adhesion model without infusion of cold saline (D); and sham operation without infusion of cold saline (E). Adhesion scores and tPA levels in the peritoneum fluid levels were analyzed on postoperative days 1, 7, and 14., Results: On day 14, the cold saline infusion groups (A, B, and C) had lower adhesion scores than the without infusion of cold saline group (D). However, only group B (cold saline infusion for 30 minutes) had a significantly lower adhesion scores than group D. Also, group B was found to have 3.4 fold, 2.3 fold, and 2.2 fold higher levels of tPA than group D on days 1, 7, and 14 respectively., Conclusions: Our results suggest that cold saline infusion for 30 minutes was the optimum duration to decrease postoperative intra-abdominal adhesion formation. The decrease in the adhesion formations could be partly due to an increase in the level of tPA., Competing Interests: The authors have declared that no competing interests exist.
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- 2016
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12. Statin treatment is associated with a decreased risk of active tuberculosis: an analysis of a nationally representative cohort.
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Lai CC, Lee MT, Lee SH, Hsu WT, Chang SS, Chen SC, and Lee CC
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- Case-Control Studies, Female, Humans, Incidence, Male, Middle Aged, Risk Factors, Taiwan epidemiology, Treatment Outcome, Tuberculosis, Pulmonary epidemiology, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use, Tuberculosis, Pulmonary drug therapy
- Abstract
Background: Epidemiological data suggest that statins improve the clinical outcome of respiratory infections. We sought to examine whether statin therapy decreases the risk of active TB., Methods: We conducted a nested case-control study on data obtained from a national health insurance claims database between 1999 and 2011. The use of statins was classified as current, recent, past or chronic use. Three conditional logistic regression models were used to estimate the incidence rate ratios (RRs). The first assessed the effect of statin use without further adjustment; the second adjusted (individually) for 75 potential confounders; and the third adjusted for the Disease Risk Score (DRS)., Results: A total of 8098 new TB cases and 809 800 control patients were examined. All four types of statin users showed a decreased risk of active TB. Chronic use (>90 days in a calendar year) of statins was associated with the lowest unadjusted risk of TB (RR 0.74; 95% CI 0.63 to 0.87). The protective effect of active TB remained after adjusting for individual confounders (RR 0.66; 95% CI 0.56 to 0.78) and after DRS adjustment (RR 0.62; 95% CI 0.53 to 0.72). The effect estimates obtained for chronic and current use of statins were very similar. We also found that the active TB protection increased with increasing length of statin prescription., Conclusions: We found that statin therapy was associated with a decreased risk of active TB, and the length of statin therapy affected the TB protection. Given the observational nature of this study, the protective effect against active TB must be confirmed in future randomised trials., (Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/)
- Published
- 2016
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13. Treatment of Seborrhoeic Dermatitis in Asia: A Consensus Guide.
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Cheong WK, Yeung CK, Torsekar RG, Suh DH, Ungpakorn R, Widaty S, Azizan NZ, Gabriel MT, Tran HK, Chong WS, Shih IH, Dall'Oglio F, and Micali G
- Abstract
Seborrhoeic dermatitis (SD) is common in Asia. Its prevalence is estimated to be 1-5% in adults. However, larger population-based studies into the epidemiology of SD in Asia are lacking, and the aetiology of SD may differ widely from Western countries and in different parts of Asia. In addition, clinically significant differences between Asian and Caucasian skin have been reported. There is a need to define standardized clinical diagnostic criteria and/or a grading system to help determine appropriate treatments for SD within Asia. With this in mind, experts from India, South Korea, Taiwan, Malaysia, Vietnam, Singapore, Thailand, the Philippines, Indonesia, and Italy convened to define the landscape of SD in Asia at a meeting held in Singapore. The consensus group developed a comprehensive algorithm to aid clinicians to recommend appropriate treatment of SD in both adults and children. In most cases, satisfactory therapeutic results can be accomplished with topical antifungal agents or topical corticosteroids. Non-steroidal anti-inflammatory agents with antifungal properties have been shown to be a viable option for both acute and maintenance therapy.
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- 2016
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14. Circulating Tumor Cells: A Review of Non-EpCAM-Based Approaches for Cell Enrichment and Isolation.
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Gabriel MT, Calleja LR, Chalopin A, Ory B, and Heymann D
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- Antigens, Neoplasm blood, Cell Adhesion Molecules blood, Cell Separation, Epithelial Cell Adhesion Molecule, Humans, Single-Cell Analysis, Biomarkers, Tumor blood, Epithelial-Mesenchymal Transition, Neoplastic Cells, Circulating chemistry, Neoplastic Cells, Circulating metabolism
- Abstract
Background: Circulating tumor cells (CTCs) are biomarkers for noninvasively measuring the evolution of tumor genotypes during treatment and disease progression. Recent technical progress has made it possible to detect and characterize CTCs at the single-cell level in blood., Content: Most current methods are based on epithelial cell adhesion molecule (EpCAM) detection, but numerous studies have demonstrated that EpCAM is not a universal marker for CTC detection because it fails to detect both carcinoma cells that undergo epithelial-mesenchymal transition (EMT) and CTCs of mesenchymal origin. Moreover, EpCAM expression has been found in patients with benign diseases. A large proportion of the current studies and reviews about CTCs describe EpCAM-based methods, but there is evidence that not all tumor cells can be detected using this marker. Here we describe the most recent EpCAM-independent methods for enriching, isolating, and characterizing CTCs on the basis of physical and biological characteristics and point out the main advantages and disadvantages of these methods., Summary: CTCs offer an opportunity to obtain key biological information required for the development of personalized medicine. However, there is no universal marker of these cells. To strengthen the clinical utility of CTCs, it is important to improve existing technologies and develop new, non-EpCAM-based systems to enrich and isolate CTCs., (© 2016 American Association for Clinical Chemistry.)
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- 2016
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15. Neuropsychological findings associated with Panayiotopoulos syndrome in three children.
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Hodges SL, Gabriel MT, and Perry MS
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- Child, Child, Preschool, Cognition Disorders diagnosis, Cognition Disorders etiology, Cognition Disorders psychology, Electroencephalography, Epilepsies, Partial complications, Female, Humans, Male, Syndrome, Epilepsies, Partial diagnosis, Epilepsies, Partial psychology, Neuropsychological Tests
- Abstract
Panayiotopoulos syndrome is a common idiopathic benign epilepsy that has a peak age of onset in early childhood. The syndrome is multifocal and shows significant electroencephalogram (EEG) variability, with occipital predominance. Although a benign syndrome often refers to the absence of neurological and neuropsychological deficits, the syndrome has recently been associated with cognitive impairments. Also, despite frequent occipital EEG abnormalities, research regarding the visual functioning of patients is less reported and often contradictory. The purpose of this study was to gain additional knowledge regarding the neurocognitive functioning of patients with Panayiotopoulos syndrome and specifically to address any visual processing deficits associated with the syndrome. Following diagnosis of the syndrome based on typical clinical and electrophysiological criteria, three patients, aged 5, 8, and 10years were referred by epileptologists for neuropsychological evaluation. Neuropsychological findings suggest that the patients had notable impairments on visual memory tasks, especially in comparison with verbal memory. Further, they demonstrated increased difficulty on picture memory suggesting difficulty retaining information from a crowded visual field. Two of the three patients showed weakness in visual processing speed, which may account for weaker retention of complex visual stimuli. Abilities involving attention were normal for all patients, suggesting that inattention is not responsible for these visual deficits. Academically, the patients were weak in numerical operations and spelling, which both rely partially on visual memory and may affect achievement in these areas. Overall, the results suggest that patients with Panayiotopoulos syndrome may have visual processing and visual memory problems that could potentially affect their academic capabilities. Identifying such difficulties may be helpful in creating educational and remedial assistance programs for children with this syndrome, as well as developing appropriate presentation of information to these children in school., (Copyright © 2015 Elsevier Inc. All rights reserved.)
- Published
- 2016
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16. Using the galectin-3 test to predict mortality in heart failure patients: a systematic review and meta-analysis.
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Chen YS, Gi WT, Liao TY, Lee MT, Lee SH, Hsu WT, Chang SS, and Lee CC
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- Acute Disease, Chronic Disease, Humans, Myocardial Infarction mortality, Galectin 3 metabolism, Heart Failure mortality
- Abstract
Aim: Galectin-3 (Gal-3) is a new biomarker for assessing prognosis of heart failure (HF) patients. This systemic review and meta-analysis aims to examine Gal-3's ability in assessing prognosis of HF patients., Method: We searched MEDLINE and Embase up to November 2014. Test performance characteristics were summarized using forest plots and hierarchical summary receiver operating characteristic curves., Results: The diagnostic odds ratio of Gal-3 in predicting mortality in chronic HF patients was 2.36 (95% CI: 1.71-3.26) and 2.30 (95% CI: 1.76-3.01) in acute HF patients., Conclusion: Elevated levels of Gal-3 are associated with mortality in both acute and chronic HF patients. However, current evidence does not support sole use of Gal-3 for prognosis evaluation of HF patients.
- Published
- 2016
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17. Risk of Aortic Dissection and Aortic Aneurysm in Patients Taking Oral Fluoroquinolone.
- Author
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Lee CC, Lee MT, Chen YS, Lee SH, Chen YS, Chen SC, and Chang SC
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- Aged, Aged, 80 and over, Anti-Bacterial Agents administration & dosage, Anti-Bacterial Agents adverse effects, Case-Control Studies, Comorbidity, Female, Fluoroquinolones administration & dosage, Hospitalization statistics & numerical data, Humans, Male, Middle Aged, Pharmacovigilance, Risk Assessment, Risk Factors, Taiwan epidemiology, Aortic Dissection chemically induced, Aortic Dissection epidemiology, Aortic Dissection therapy, Aortic Aneurysm chemically induced, Aortic Aneurysm epidemiology, Aortic Aneurysm therapy, Fluoroquinolones adverse effects
- Abstract
Importance: Fluoroquinolones have been associated with collagen degradation, raising safety concerns related to more serious collagen disorders with use of these antibiotics, including aortic aneurysm and dissection., Objective: To examine the relationship between fluoroquinolone therapy and the risk of developing aortic aneurysm and dissection., Design, Setting, and Participants: We conducted a nested case-control analysis of 1477 case patients and 147 700 matched control cases from Taiwan's National Health Insurance Research Database (NHIRD) from among 1 million individuals longitudinally observed from January 2000 through December 2011. Cases patients were defined as those hospitalized for aortic aneurysm or dissection. One hundred control patients were matched for each case based on age and sex., Exposures: Current, past, or any prior-year use of fluoroquinolone. Current use was defined as a filled fluoroquinolone prescription within 60 days of the aortic aneurysm or dissection; past use refers to a filled fluoroquinolone prescription between 61 and 365 days prior to the aortic aneurysm; and any prior-year use refers to having a fluoroquinolone prescription filled for 3 or more days any time during the 1-year period before the aortic aneurysm or dissection., Main Outcomes and Measures: Risk of developing aortic aneurysm or dissection., Results: A total of 1477 individuals who experienced aortic aneurysm or dissection were matched to 147 700 controls. After propensity score adjustment, current use of fluoroquinolones was found to be associated with increased risk for aortic aneurysm or dissection (rate ratio [RR], 2.43; 95% CI, 1.83-3.22), as was past use, although this risk was attenuated (RR, 1.48; 95% CI, 1.18-1.86). Sensitivity analysis focusing on aortic aneurysm and dissection requiring surgery also demonstrated an increased risk associated with current fluoroquinolone use, but the increase was not statistically significant (propensity score-adjusted RR, 2.15; 95% CI, 0.97-4.60)., Conclusions and Relevance: Use of fluoroquinolones was associated with an increased risk of aortic aneurysm and dissection. While these were rare events, physicians should be aware of this possible drug safety risk associated with fluoroquinolone therapy.
- Published
- 2015
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18. Does procalcitonin, C-reactive protein, or interleukin-6 test have a role in the diagnosis of severe infection in patients with febrile neutropenia? A systematic review and meta-analysis.
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Wu CW, Wu JY, Chen CK, Huang SL, Hsu SC, Lee MT, Chang SS, and Lee CC
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- C-Reactive Protein metabolism, Calcitonin Gene-Related Peptide, Humans, Bacterial Infections blood, Biomarkers blood, Calcitonin metabolism, Febrile Neutropenia diagnosis, Febrile Neutropenia immunology, Interleukin-6 metabolism, Protein Precursors metabolism
- Abstract
Purpose: The study aims to determine the usefulness of procalcitonin (PCT) and other blood markers for identification of bacterial infection among patients with febrile neutropenia (FN)., Methods: The Medline, EMBASE, and Cochrane databases were searched for articles from 1966 to December 2012. We performed a search to identify articles that examined the diagnostic accuracy of PCT in patients with FN. Statistical analyses (fixed- or random-effect models) were conducted to summarize and calculate the sensitivity, specificity, likelihood ratios, and 95 % confidence intervals (CIs)., Results: Twenty-seven studies were included (1960 febrile episodes) for PCT analysis, 13 (1712 febrile episodes) for C-reactive protein (CRP) analysis, and five (314 febrile episodes) for interleukin (IL)-6 analysis. Increased PCT levels (odds ratio [OR] 11.5; 95 % CI 7.6 to 17.3), raised CRP levels (3.3; 2.7 to 4.2), and raised IL-6 levels (10.0; 5.5 to 18.0) were significantly associated with bacterial infection. Overall positive likelihood ratio was 5.49 (4.04-7.45) for PCT, 1.82 (1.42-2.33) for CRP, and 3.68 (2.41-5.60) for IL-6. Overall negative likelihood ratio was 0.40 (0.31-0.51) for PCT, 0.40 (0.26-0.61) for CRP, and 0.33 (0.23-0.46) for IL-6., Conclusions: Of the three potentially useful markers, PCT had the best positive likelihood ratio and can be used to confirm the diagnosis of bacterial infections in patients with FN. Due to unacceptably high negative likelihood ratio, medical decision for stopping antibiotics based on PCT alone in this high-risk population may not be possible.
- Published
- 2015
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19. Resuscitation Using Liposomal Vasopressin in an Animal Model of Uncontrolled Hemorrhagic Shock.
- Author
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Lee MT, Wang HM, Ho JA, Fan NC, Yang YL, Lee CC, and Chen SC
- Subjects
- 1,2-Dipalmitoylphosphatidylcholine chemistry, Animals, Cholesterol chemistry, Disease Models, Animal, Fluid Therapy, Interleukin-6 blood, Isotonic Solutions chemistry, Light, Male, Phosphatidylethanolamines chemistry, Pulmonary Edema, Rats, Rats, Wistar, Ringer's Lactate, Scattering, Radiation, Tumor Necrosis Factor-alpha blood, Vasopressins chemistry, Liposomes chemistry, Resuscitation methods, Shock, Hemorrhagic physiopathology, Shock, Hemorrhagic therapy, Vasopressins therapeutic use
- Abstract
Background: Current research suggests that administration of vasopressin to patients with uncontrolled hemorrhagic shock (UHS) can avoid the detrimental effects associated with aggressive fluid resuscitation. However, vasopressin has a short half-life of 10~35 minutes in in vivo use and precludes its use in the pre-hospital setting. To increase the half-life of vasopressin, we proposed to synthesize liposome-encapsulated vasopressin and test it in a rat model of UHS., Methods: The film hydration method was used to prepare liposomal vasopressin consisting of: Dipalmitoylphosphatidylcholine, cholesterol, and dipalmitoyl phosphatidylethanolamine (20:20:1 mole ratio). 42 rats were subjected to UHS and randomly received 5 different treatments (vasopressin, liposomal vasopressin, lactate ringer (LR), liposome only and sham). Outcome of UHS were measured using 4 common prognostic tests: mean arterial pressure (MAP), serum lactate level, inflammatory profile and pulmonary edema., Results: The dynamic light scattering results confirmed that we had prepared a successful liposomal vasopressin complex. Comparing the serum vasopressin concentration of liposomal vasopressin and vasopressin treated animals by ELISA, we found that the concentration of vasopressin for the liposomal vasopressin treated group is higher at 60 minutes. However, there was no significant difference between the MAP profile of rats treated with vasopressin and liposomal vasopressin in UHS. We also observed that animals treated with liposomal vasopressin performed indifferently to vasopressin treated rats in serum lactate level, inflammatory profile and edema profile. For most of our assays, the liposome only control behaves similarly to LR resuscitation in UHS rats., Conclusion: We have synthesized a liposomal vasopressin complex that can prolong the serum concentration of vasopressin in a rat model of UHS. Although UHS rats treated with either liposomal vasopressin or vasopressin showed no statistical differences, it would be worthwhile to repeat the experiments with different liposomal compositions.
- Published
- 2015
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20. Usefulness of natriuretic peptide for the diagnosis of Kawasaki disease: a systematic review and meta-analysis.
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Lin KH, Chang SS, Yu CW, Lin SC, Liu SC, Chao HY, Lee MT, Wu JY, and Lee CC
- Subjects
- Acute Disease, Biomarkers blood, Humans, Mucocutaneous Lymph Node Syndrome blood, Prospective Studies, ROC Curve, Sensitivity and Specificity, Mucocutaneous Lymph Node Syndrome diagnosis, Natriuretic Peptide, Brain blood
- Abstract
Objective: To examine the diagnostic value of serum B-type natriuretic peptide (BNP) in acute Kawasaki disease (KD)., Design: Systematic review and meta-analysis., Data Sources: A systematic literature search strategy was designed and carried out using MEDLINE, EMBASE and the Cochrane Library from inception to December 2013. We also performed manual screening of the bibliographies of primary studies and review articles, and contacted authors for additional data., Study Eligibility Criteria: We included all BNP and NT-pro (N-terminal prohormone) BNP assay studies that compared paediatric patients with KD to patients with febrile illness unrelated to KD. We excluded case reports, case series, review articles, editorials, congress abstracts, clinical guidelines and all studies that compared healthy controls., Primary and Secondary Outcome Measures: The performance characteristics of BNP were summarised using forest plots, hierarchical summary receiver operating characteristic (ROC) curves and bivariate random effects models., Results: We found six eligible studies including 279 cases of patients with KD and 203 febrile controls. Six studies examined NT-proBNP and one examined BNP. In general, NT-proBNP is a specific and moderately sensitive test for identifying KD. The pooled sensitivity was 0.89 (95% CI 0.78 to 0.95) and the pooled specificity was 0.72 (95% CI 0.58 to 0.82). The area under the summary ROC curve was 0.87 (95% CI 0.83 to 0.89). The positive likelihood ratio (LR+ 3.20, 95% CI 2.10 to 4.80) was sufficiently high to be qualified as a rule-in diagnostic tool in the context of high pre-test probability and compatible clinical symptoms. A high degree of heterogeneity was found using the Cochran Q statistic., Conclusions: Current evidence suggests that NT-proBNP may be used as a diagnostic tool for KD. NT-proBNP has high diagnostic value for identifying KD in patients with protracted undifferentiated febrile illness. Prospective large cohort studies are needed to help determine best cut-off values and further clarify the role of NT-proBNP in the diagnosis process of KD., (Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.)
- Published
- 2015
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21. Prognostic determinants of community-acquired bloodstream infection in type 2 diabetic patients in ED.
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Yo CH, Lee MT, Gi WT, Chang SS, Tsai KC, Chen SC, and Lee CC
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- Aged, Bacteremia microbiology, Bacteremia mortality, Community-Acquired Infections diagnosis, Community-Acquired Infections etiology, Diabetes Mellitus, Type 2 microbiology, Diabetic Ketoacidosis etiology, Female, Glycated Hemoglobin analysis, Humans, Hyperglycemic Hyperosmolar Nonketotic Coma etiology, Kaplan-Meier Estimate, Male, Middle Aged, Prognosis, Proportional Hazards Models, Retrospective Studies, Survival Analysis, Bacteremia diagnosis, Diabetes Mellitus, Type 2 complications, Emergency Service, Hospital statistics & numerical data
- Abstract
Objectives: The objective of the study is to describe the epidemiology and outcome of community-acquired bloodstream infection (BSI) in type 2 diabetic patients in emergency department (ED)., Methods: All patients admitted to the ED of the university hospital from June 2010 to June 2011 with a history of type 2 diabetes mellitus and microbiologically documented BSI were retrospectively enrolled. Demographic characteristics, Charlson comorbidity index, antibiotic therapy, clinical severity, microbiological etiology, and diabetes-related complications were recorded in a standardized form. The major outcome measure was 30-day survival. χ2 Or Student t test was used for univariate analysis, and Cox proportional hazards models were used for multivariate analysis., Results: Among 250 enrolled emergency patients with BSI, the overall 30-day mortality rate was 15.5%. Twenty-seven patients (10.7%) developed diabetic ketoacidosis (DKA), and 22 patients (8.8%) developed hyperosmolar hyperglycemic state. On univariate analysis, DKA rather than hyperosmolar hyperglycemic state was associated with adverse outcome. Other risk factors include higher mean glycated hemoglobin level, presence of underlying malignancy, long-term use of steroids, lower respiratory tract infection, and higher Charlson scores. Multivariate analysis identified 3 independent risk factors for early mortality when severity, comorbidity, age, and sex were under control: DKA (hazard ratio, 3.89; 95% confidence interval, 1.6-8.9), inappropriate antibiotics (2.25, 1.05-4.82), and chronic use of steroid (3.89, 1.1-13.2)., Conclusion: In type 2 diabetic patients with BSI, a substantial proportion of patients developed DKA. This condition was probably underrecognized by clinicians and constituted an independent risk factor for short-term mortality. Other identified risk factors are potentially correctable and may allow preventive efforts to individuals at greatest potential benefit., (Copyright © 2014 Elsevier Inc. All rights reserved.)
- Published
- 2014
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22. A comparison of vasopressin, terlipressin, and lactated ringers for resuscitation of uncontrolled hemorrhagic shock in an animal model.
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Lee CC, Lee MT, Chang SS, Lee SH, Huang YC, Yo CH, Lee SH, and Chen SC
- Subjects
- Animals, Disease Models, Animal, Lypressin therapeutic use, Male, Rats, Rats, Wistar, Ringer's Lactate, Terlipressin, Isotonic Solutions therapeutic use, Lypressin analogs & derivatives, Shock, Hemorrhagic drug therapy, Vasopressins therapeutic use
- Abstract
Aim: The aim of this study is to compare the effect of lactated ringer (LR), vasopressin (Vaso) or terlipressin (Terli) on uncontrolled hemorrhagic shock (UHS) in rats., Methods: 48 rats were divided into four treatment groups for UHS study. Vaso group was given bolus vasopressin (0.8 U/kg); the Terli group was given bolus terlipressin (15 mcg/kg); LR group was given LR and the sham group was not given anything. Mean arterial pressure (MAP), serum lactate level, plasma cytokine levels, lung injury and mortality are investigated for these different treatment groups., Results: Compared with LR group, vasopressin and terlipressin-treated groups were associated with higher MAP, lowered mortality rates, less lung injury, lowered serum lactate level, less proinflammatory and more anti-inflammatory cytokine production at certain time points. Comparing between vasopressin and terlipressin treated groups, there is no statistical difference in mortality rates, lung injury, serum lactate level and cytokine level. However, there is a difference in the length of time in maintaining a restored level of MAP (80 to 110 mmHg). The terlipressin treated rats can maintain this restored level of MAP for 45 minutes, but the vasopressin treated rats can only maintain this restored level of MAP for 5 minutes before decreasing gradually to the MAP observed in LR group (40 mmHg)., Conclusion: Early optimization of hemodynamics with terlipressin or vasopressin in an animal model of UHS was associated with improved hemodynamics and inflammatory cytokine profile than the LR control. Compared with vasopressin, terlipressin has the advantage of ease of use and sustained effects.
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- 2014
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23. Guidelines for management of androgenetic alopecia based on BASP classification--the Asian Consensus Committee guideline.
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Lee WS, Lee HJ, Choi GS, Cheong WK, Chow SK, Gabriel MT, Hau KL, Kang H, Mallari MR, Tsai RY, Zhang J, and Zheng M
- Subjects
- Adult, Algorithms, Humans, Male, Middle Aged, Alopecia drug therapy
- Abstract
Background: Androgenetic alopecia (AGA), or pattern hair loss, is a common disorder in both Asian men and women. There are several guidelines for the treatment of AGA which are suitable for Caucasian patients; however, each of these has some limitations. Furthermore, in comparison with Caucasian patients, Asian patients with AGA have different types of hair loss and family histories which may alter the treatment response. There is currently no published AGA guideline for Asian patients., Objectives: The Asian Consensus Committee for Androgenetic Alopecia aimed to develop an algorithmic guideline, based on the basic and specific (BASP) classification, for the treatment of AGA especially in Asian patients., Methods: The committee collaborated extensively on reviewing available literature on AGA treatment in order to formulate an algorithmic guideline on AGA management., Results: Previously published guidelines based on pre-existing classifications of AGA cannot easily classify the patterns of AGA that are more frequently seen in Asians. The BASP classification not only facilitates the development of a unified and simplified algorithm, but also overcomes the disadvantages of previously reported classification systems., Conclusions: The proposed treatment guideline for AGA based on the BASP classification may be useful for dermatologists in their approach to treating Asian patients with AGA in clinical practice. Ideally, clinicians should try to utilize this guideline consistently in their practice to monitor treatment response with the goal of enhancing successful outcomes. This will help boost patients' confidence and self-esteem, thus improving patient' compliance with the prescribed treatments., (© 2012 The Authors. Journal of the European Academy of Dermatology and Venereology © 2012 European Academy of Dermatology and Venereology.)
- Published
- 2013
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24. Leprosy in the Philippines: a review.
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Handog EB, Gabriel MT, and Co CC
- Subjects
- Bacterial Vaccines therapeutic use, Disabled Persons rehabilitation, Female, Humans, Leprostatic Agents therapeutic use, Male, Mycobacterium leprae drug effects, Mycobacterium leprae isolation & purification, Neglected Diseases diagnosis, Neglected Diseases drug therapy, Philippines epidemiology, Leprosy diagnosis, Leprosy drug therapy, Leprosy epidemiology, Leprosy transmission, Neglected Diseases epidemiology
- Abstract
Leprosy is a skin disease that accounts for serious deformities and disabilities, leading to stigmatization and psychosocial suffering. It is included in "The Neglected Tropical Diseases". Not surprisingly, its management is increasingly reported as a function of Dermatology Departments, with a strong community-orientated bias. Prompt and accurate diagnosis of leprosy is crucial in the control of leprosy. Its management requires a multidisciplinary team of skilled physicians, laboratory staff, and nurses. All members of the health sectors should remain vigilant to combat this battle against leprosy., (© 2011 The International Society of Dermatology.)
- Published
- 2011
- Full Text
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25. Syphilis: the international challenge of the great imitator.
- Author
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Domantay-Apostol GP, Handog EB, and Gabriel MT
- Subjects
- Diagnosis, Differential, Female, Humans, Male, Practice Guidelines as Topic, Sex Education organization & administration, Sex Work, Sexual Partners, Syphilis prevention & control, Syphilis, Cutaneous diagnosis, Syphilis, Cutaneous therapy, Syphilis, Latent diagnosis, Syphilis, Latent therapy, Treponema pallidum isolation & purification, Health Knowledge, Attitudes, Practice, Patient Care Planning organization & administration, Primary Prevention methods, Syphilis diagnosis, Syphilis therapy
- Abstract
Syphilis is a systemic disease caused by the spirochete Treponema pallidum. The name of this ancient but pervasive infection is proverbial to health care providers. The worldwide recognition of this term, however, argues with the intricacy of the disease in addition to the diagnostic and therapeutic challenges that persistently affect the global control of syphilis up to the present. This article focuses on the varied presentations of the infection, earning the title the "great imitator." The article also tackles other significant concerns regarding this malady.
- Published
- 2008
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26. The effects of refreezing on the viscoelastic and tensile properties of ligaments.
- Author
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Moon DK, Woo SL, Takakura Y, Gabriel MT, and Abramowitch SD
- Subjects
- Animals, Elasticity, Rabbits, Tensile Strength, United States, Biomechanical Phenomena methods, Cryopreservation, Knee Joint physiology, Ligaments physiology
- Abstract
Biomechanical testing protocols for ligaments can be extensive and span two or more days. During this time, a specimen may have to undergo more than one cycle of freezing and thawing. Thus, the objective of this study was to evaluate the effects of refreezing on the viscoelastic and tensile properties of ligaments. The femur-medial collateral ligament-tibia complexes (FMTC) from six pairs of rabbit knees were used for this study. Following sacrifice, one leg in each pair was assigned to the fresh group and the FMTC was immediately dissected and prepared for testing. The contralateral knees were fresh-frozen at -20 degrees C for 3 weeks, thawed, dissected and then refrozen for one additional week before being tested as the refrozen group. The cross-sectional area and shape of the medial collateral ligament (MCL) was measured using a laser micrometer system. Stress relaxation and cyclic stress-relaxation tests in uniaxial tension were performed followed by a load to failure test. When the viscoelastic behavior of the MCL was described by the quasi-linear viscoelastic (QLV) theory, no statistically significant differences could be detected for the five constants (A, B, C, tau1, and tau2) between the fresh and refrozen groups (p > or = 0.07) based on our sample size. In addition, the structural properties of the FMTCs and the mechanical properties of the MCLs were also found to be similar between the two groups (p > or = 0.68). These results suggest that careful refreezing of the specimens had little or no effect on the biomechanical properties measured.
- Published
- 2006
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27. A novel methodology to reproduce previously recorded six-degree of freedom kinematics on the same diarthrodial joint.
- Author
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Moore SM, Thomas M, Woo SL, Gabriel MT, Kilger R, and Debski RE
- Subjects
- Biomechanical Phenomena methods, Femur physiology, Humans, Male, Middle Aged, Tibia physiology, Knee Joint physiology, Robotics
- Abstract
The objective of this study was to develop a novel method to more accurately reproduce previously recorded 6-DOF kinematics of the tibia with respect to the femur using robotic technology. Furthermore, the effect of performing only a single or multiple registrations and the effect of robot joint configuration were investigated. A single registration consisted of registering the tibia and femur with respect to the robot at full extension and reproducing all kinematics while multiple registrations consisted of registering the bones at each flexion angle and reproducing only the kinematics of the corresponding flexion angle. Kinematics of the knee in response to an anterior (134 N) and combined internal/external (+/-10 N m) and varus/valgus (+/-5 N m) loads were collected at 0 degrees , 15 degrees , 30 degrees , 60 degrees , and 90 degrees of flexion. A six axes, serial-articulated robotic manipulator (PUMA Model 762) was calibrated and the working volume was reduced to improve the robot's accuracy. The effect of the robot joint configuration was determined by performing single and multiple registrations for three selected configurations. For each robot joint configuration, the accuracy in position of the reproduced kinematics improved after multiple registrations (0.7+/-0.3, 1.2+/-0.5, and 0.9+/-0.2 mm, respectively) when compared to only a single registration (1.3+/-0.9, 2.0+/-1.0, and 1.5+/-0.7 mm, respectively) (p<0.05). The accuracy in position of each robot joint configuration was unique as significant differences were detected between each of the configurations. These data demonstrate that the number of registrations and the robot joint configuration both affect the accuracy of the reproduced kinematics. Therefore, when using robotic technology to reproduce previously recorded kinematics, it may be necessary to perform these analyses for each individual robotic system and for each diarthrodial joint, as different joints will require the robot to be placed in different robot joint configurations.
- Published
- 2006
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28. Functional tissue engineering for ligament healing: potential of antisense gene therapy.
- Author
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Woo SL, Jia F, Zou L, and Gabriel MT
- Subjects
- Animals, DNA, Antisense administration & dosage, DNA, Antisense genetics, Genetic Therapy trends, Growth Substances therapeutic use, Humans, Knee Injuries surgery, Ligaments physiopathology, Ligaments surgery, Stem Cell Transplantation methods, Stem Cell Transplantation trends, Tissue Engineering trends, Treatment Outcome, DNA, Antisense therapeutic use, Genetic Therapy methods, Knee Injuries genetics, Knee Injuries therapy, Ligaments injuries, Tissue Engineering methods, Wound Healing physiology
- Abstract
Traumatic knee injuries frequently involve the disruption of multiple ligaments, such as a complete tear of the medial collateral ligament (MCL) together with a rupture of the anterior cruciate ligament (ACL) (Miyasaka, K., D. M. Daniel, M. L. Stone, and P. Hirshman. Am. J. Knee Surg. 4:3-8, 1991). Despite the high incidence, clinical management of this type of injury is still debated. Laboratory studies have shown that the ACL and MCL share the responsibility of stabilizing the knee, especially in response to valgus and other rotatory torques as well as anterior tibial loads (Inoue, M., E. McGurk-Burleson, J. M. Hollis, and S. L-Y. Woo. Am. J. Sports Med. 15:15-21, 1987; Kanamori, A., M. Sakane, J. Zeminski, T. W. Rudy, and S. L-Y. Woo. J. Ortho. Sci. 5:567-571, 2000; Ma, C. B., C. D. Papageogiou, R. E. Debski, and S. L. Woo. Acta Orthop. Scand. 71:387-393, 2000; Sakane, M., G. A. Livesay, R. J. Fox, T. W. Rudy, T. J. Runco, and S. L-Y. Woo. Knee Surg. Sports Traumatol. Arthrosc. 7:93-97, 1999). When one structure is deficient, the force in the other increases significantly to compensate. The injured ACL does not heal and requires surgical replacement by tissue grafts. On the other hand, after an isolated MCL tear or in a combined MCL and ACL injury, the MCL can heal spontaneously without surgical intervention and can function well in most cases. Nevertheless, the biomechanical and biochemical properties as well as the histomorphological appearance of the healing MCL are substantially different to those of normal tissue (Bray, R. C., D. J. Butterwick, M. R. Daschak, and J. V. Tyberg. J. Orthop. Res. 14:618-625, 1996; Loitz-Ramage, B. J., C. B. Frank, and N. G. Shrive. Clin. Orthop.:272-280, 1997; Weiss, J. A., S. L-Y. Woo, K. J. Ohland, S. Horibe, and P. O. Newton. J. Orthop. Res. 9:516-528, 1991). In an effort to improve the outcome of injuries to these and other ligaments, therapeutic strategies associated with improving biomechanical, biochemical, and histomorphological properties of ligaments have been investigated in recent years. These therapeutic strategies include growth factor stimulation (Conti, N. A., and L. E. Dahners. Presented at Orthopaedic Research Society, San Francisco, CA; Deie, M., T. Marui, C. R. Allen, K. A. Hildebrand, H. I. Georgescu, et al. Mech. Ageing Dev. 97:121-130, 1997), cell therapy (Menetrey, J., C. Kasemkijwattana, C. S. Day, P. Bosch, F. H. Fu, et al. Tissue Eng. 5:435-442, 1999; Watanabe, N., S. L-Y. Woo, C. Papageorgiou, C. Celechovsky, and S. Takai. Microsc. Res. Tech. 58:39-44, 2002), as well as gene stherapy (Nakamura N., D. A. Hart, R. S. Boorman, Y. Kaneda, N. G. Shrive, et al. J. Orthop. Res. 18:517-523, 2000; Shimomura, T., F. Jia, C. Niyibizi, and S. L-Y. Woo. Connect. Tissue Res.:2003). The knowledge gained by studying these therapeutic strategies could potentially be applied to other ligaments and tendons. In this article, antisense gene therapy to alter gene expression by using antisense oligonucleotides will be examined as a possible solution.
- Published
- 2004
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29. Passive strain distribution in the interosseous ligament of the forearm: implications for injury reconstruction.
- Author
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Gabriel MT, Pfaeffle HJ, Stabile KJ, Tomaino MM, and Fischer KJ
- Subjects
- Biomechanical Phenomena, Forearm physiology, Humans, Image Processing, Computer-Assisted, Pronation physiology, Range of Motion, Articular, Rotation, Supination physiology, Ligaments physiology
- Abstract
Purpose: For severe forearm injuries such as an Essex-Lopresti fracture-dislocation, functional reconstruction necessitates repair of the interosseous ligament (IOL) to restore normal load sharing between the radius and ulna. Locating or tensioning such a reconstruction improperly can lead to abnormal load sharing and/or restriction of forearm rotation. The normal IOL strains should indicate the proper location of reconstruction grafts and the proper forearm rotation for tensioning the grafts. The objective of this study was to quantify the passive strain distribution of the IOL of the forearm with passive rotation of the forearm throughout the range of motion., Methods: The 3-dimensional motions of the radius with respect to the ulna were measured throughout forearm rotation in 10 cadaveric forearms by using an instrumented spatial linkage. From the bone motions and ligament insertion site geometry from dissection and computed tomographic scanning, insertion site motions were determined and used to calculate changes in ligament fiber lengths., Results: The measured strain distribution in the IOL was nonuniform and varied with forearm rotation. The overall magnitude of IOL strain was found to be greatest in supination and smallest in pronation. In supination the strains varied across fibers with strains being greatest in the distal fibers and lowest in the proximal fibers. Strains in neutral rotation were uniform across fibers. Although fibers were generally slack in pronation proximal fibers were less slack than distal fibers., Conclusions: The results of this study indicate that fiber strains in the IOL vary from proximal to distal and depend on forearm rotation. Our data suggest that to prevent restriction of forearm rotation all grafts should be tensioned in supination, where measured strains were generally highest. Our data also suggest that a 2-bundle IOL reconstruction may be necessary for proper load transfer between the radius and ulna in both supination and pronation.
- Published
- 2004
- Full Text
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30. Distribution of in situ forces in the anterior cruciate ligament in response to rotatory loads.
- Author
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Gabriel MT, Wong EK, Woo SL, Yagi M, and Debski RE
- Subjects
- Aged, Biomechanical Phenomena, Humans, In Vitro Techniques, Middle Aged, Tibia physiology, Torque, Anterior Cruciate Ligament physiology, Knee Joint physiology, Weight-Bearing physiology
- Abstract
The anterior cruciate ligament (ACL) can be anatomically divided into anteromedial (AM) and posterolateral (PL) bundles. Current ACL reconstruction techniques focus primarily on reproducing the AM bundle, but are insufficient in response to rotatory loads. The objective of this study was to determine the distribution of in situ force between the two bundles when the knee is subjected to anterior tibial and rotatory loads. Ten cadaveric knees (50+/-10 years) were tested using a robotic/universal force-moment sensor (UFS) testing system. Two external loading conditions were applied: a 134 N anterior tibial load at full knee extension and 15 degrees, 30 degrees, 60 degrees, and 90 degrees of flexion and a combined rotatory load of 10 Nm valgus and 5 Nm internal tibial torque at 15 degrees and 30 degrees of flexion. The resulting 6 degrees of freedom kinematics of the knee and the in situ forces in the ACL and its two bundles were determined. Under an anterior tibial load, the in situ force in the PL bundle was the highest at full extension (67+/-30 N) and decreased with increasing flexion. The in situ force in the AM bundle was lower than in the PL bundle at full extension, but increased with increasing flexion, reaching a maximum (90+/-17 N) at 60 degrees of flexion and then decreasing at 90 degrees. Under a combined rotatory load, the in situ force of the PL bundle was higher at 15 degrees (21+/-11 N) and lower at 30 degrees of flexion (14+/-6 N). The in situ force in the AM bundle was similar at 15 degrees and 30 degrees of knee flexion (30+/-15 vs. 35+/-16 N, respectively). Comparing these two external loading conditions demonstrated the importance of the PL bundle, especially when the knee is near full extension. These findings provide a better understanding of the function of the two bundles of the ACL and could serve as a basis for future considerations of surgical reconstruction in the replacement of the ACL.
- Published
- 2004
- Full Text
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31. Tensile properties of an anterior cruciate ligament graft after bone-patellar tendon-bone press-fit fixation.
- Author
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Musahl V, Abramowitch SD, Gabriel MT, Debski RE, Hertel P, Fu FH, and Woo SL
- Subjects
- Animals, Anterior Cruciate Ligament physiology, Anterior Cruciate Ligament surgery, Anterior Cruciate Ligament Injuries, Goats, Hindlimb, Patella, Recovery of Function, Stress, Mechanical, Tensile Strength, Bone Screws, Orthopedic Procedures methods, Tendons transplantation
- Abstract
Hardware used for fixation of ACL autografts in bone tunnels frequently complicates revision surgery, requiring two-stage procedures when a bone-patellar tendon-bone (B-PT-B) autograft is used for ACL reconstruction. Therefore alternative procedures that eliminate hardware have been advocated. This study compared the mechanical behavior of two fixation procedures: a widely used interference screw (IFS) fixation and a press-fit fixation that is hardware free. Twenty hind limbs from skeletally mature Saanen breed goats were used in this study, ten each in IFS and press-fit groups. After ACL reconstruction the specimens were dissected, leaving a femur-ACL graft-tibia complex (FATC) for uniaxial tensile testing. The tests included a series of three cyclic creep tests (C1-C3) for the evaluation of residual elongation followed by a tensile load to failure test to obtain linear stiffness and ultimate load of the FATCs. Four of ten specimens failed during the cyclic creep test for the press-fit group, compared to one for the IFS group. For the remaining specimens residual elongation following three cyclic creep tests (C1-C3) was 1.7+/-0.5 mm in the press-fit group compared to 1.3+/-0.6 mm in the IFS group, and there was no statistical significant difference between the two fixations. In the load to failure test there was also no statistical significant difference in linear stiffness between the two fixations. However, the ultimate load for the press-fit group (215+/-75 N) was significantly lower than that for the IFS group (328+/-103 N). These results provide the basis for future studies involving the time course of healing of these two procedures using the goat model.
- Published
- 2003
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32. Splitting as a predictor of depression.
- Author
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Critelli JW, Gabriel MT, Ee JS, and Neumann KF
- Subjects
- Adolescent, Adult, Anxiety psychology, Female, Humans, Male, Personality Inventory, Self Concept, Defense Mechanisms, Depression psychology
- Abstract
146 university students completed measures of splitting, depression, and self-esteem. Splitting was positively correlated with depression and negatively related to self-esteem.
- Published
- 1992
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33. [Study of blood nicotinamide during anti-tuberculous treatment].
- Author
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Dumon JF, Lecourtois-Dumon T, and Brouillet-Gabriel MT
- Subjects
- Ethionamide therapeutic use, Humans, Isoniazid therapeutic use, Niacinamide therapeutic use, Pyridoxine therapeutic use, Niacinamide blood, Tuberculosis, Pulmonary blood, Tuberculosis, Pulmonary drug therapy
- Published
- 1970
34. [THERAPEUTIC TRIALS OF A NEW INJECTABLE ANTITUSSIVE AGENT: KAT-256].
- Author
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DUMON G, BROUILLET-GABRIEL MT, and HEUILLET G
- Subjects
- Humans, Acetylcholine, Antitussive Agents, Bronchiectasis, Bronchography, Bronchoscopy, Hemoptysis, Lung, Pharmacology, Tuberculosis, Tuberculosis, Pulmonary
- Published
- 1964
35. [Morphazinamide and tuberculosis].
- Author
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Dumon G, Dumon-Legre M, Brouillet-Gabriel MT, Dumon JF, and Kallos SZ
- Subjects
- Animals, Guinea Pigs, Humans, Mice, Pyrazines therapeutic use, Antitubercular Agents therapeutic use
- Published
- 1966
36. [TRIAL OF MORPHAZINAMIDE BY THE LOCAL AND GENERAL ROUTE ON TUBERCULOSIS LESIONS. (PRELIMINARY NOTE)].
- Author
-
KALLOS S, DUMON G, BROUILLET-GABRIEL MT, and PASQUET P
- Subjects
- Antitubercular Agents, Drug Therapy, Pyrazines, Tuberculosis, Tuberculosis, Pulmonary
- Published
- 1965
37. [THE TRYPTOPHAN TEST: TECHNIC AND RESULTS IN NONTUBERCULOUS PATIENTS AND IN TUBERCULOUS PATIENTS NOT TREATED WITH ISONIAZID (FOR AT LEAST A YEAR)].
- Author
-
BROUILLET-GABRIEL MT, MESDJIAN E, and DUMON G
- Subjects
- Humans, Body Fluids, Clinical Laboratory Techniques, Drug Therapy, Isoniazid, Laboratories, Metabolism, Photometry, Tryptophan, Tuberculosis, Urine, Vitamin B 6 Deficiency, Xanthurenates
- Published
- 1965
38. [Action of ultrasound on the sequelae of pleurisy (a 19-year study)].
- Author
-
Dumon JF, Brouillet-Gabriel MT, and Dumon G
- Subjects
- Adult, Humans, Male, Middle Aged, Pneumothorax, Artificial, Hemopneumothorax therapy, Pleural Diseases therapy, Pleurisy complications, Ultrasonic Therapy
- Published
- 1970
39. [Determination of the severity of pleural sequelae].
- Author
-
Dumon JF, Brouillet-Gabriel MT, Boutin C, and Dumon G
- Subjects
- Adult, Female, Humans, Lung Diseases complications, Male, Middle Aged, Pleural Diseases diagnostic imaging, Pleural Diseases etiology, Pleurisy complications, Radiography, Radionuclide Imaging, Spirometry, Pleural Diseases diagnosis
- Published
- 1970
40. [CLINICAL TRIALS OF AN ANTITUSSIVE PREPARATION WITH PROLONGED ACTION].
- Author
-
DUMON G and BROUILLET-GABRIEL MT
- Subjects
- Anti-Allergic Agents, Antitussive Agents, Biomedical Research, Codeine, Delayed-Action Preparations, Drug Therapy, Histamine H1 Antagonists, Toxicology
- Published
- 1964
41. [2 cases of tumoral bronchial stenosis--or the surprises of pathological anatomy].
- Author
-
Dumon JF, Brouillet-Gabriel MT, Dor J, and Dumon G
- Subjects
- Adult, Bronchial Diseases pathology, Bronchial Neoplasms pathology, Diagnosis, Differential, Female, Humans, Male, Middle Aged, Bronchial Diseases diagnosis, Bronchial Neoplasms diagnosis, Sarcoidosis diagnosis
- Published
- 1970
42. [A new salt of tetracycline (summary of clinical evaluation)].
- Author
-
Dumon G, Brouillet-Gabriel MT, and Dumon JF
- Subjects
- Adult, Aged, Bronchial Diseases drug therapy, Humans, Lung Diseases drug therapy, Male, Middle Aged, Pleural Diseases drug therapy, Salts, Respiratory Tract Diseases drug therapy, Tetracycline therapeutic use
- Published
- 1970
43. [Artificial pneumothorax and antibiotics. Exceptional indications and results apropos of our most recent cases].
- Author
-
Dumon G, Brouillet-Gabriel MT, and Laugier J
- Subjects
- Adolescent, Adult, Female, Humans, Male, Antitubercular Agents therapeutic use, Pneumothorax, Artificial
- Published
- 1966
44. [1ST CLINICAL CONSIDERATIONS ON THE ASSOCIATION OF A SULFAMIDE DIURETIC AND A XANTHINE DERIVATIVE IN TREATMENT OF CARDIOPULMONARY DISEASES].
- Author
-
DUMON G, BROUILLET-GABRIEL MT, and PASQUET P
- Subjects
- Humans, Biomedical Research, Diuretics, Drug Therapy, Heart Diseases, Obesity, Piperazines, Respiratory Insufficiency, Theophylline, Xanthine, Xanthines
- Published
- 1964
45. [The results of pulmonary scintigraphy performed with aerosols and intravenous injections of isotopes].
- Author
-
Dumon G, Brouillet-Gabriel MT, and Dumon JF
- Subjects
- Adult, Aerosols, Aged, Angiography, Asthma diagnosis, Bronchiectasis diagnosis, Bronchitis diagnosis, Female, Humans, Injections, Intravenous, Male, Middle Aged, Pleurisy diagnosis, Tuberculosis, Pulmonary diagnosis, Gold Colloid, Radioactive administration & dosage, Lung Diseases diagnosis, Radionuclide Imaging
- Published
- 1967
46. [ 2 cases of secondary cancer of the adrenals in a pulmonary tuberculosis hospital].
- Author
-
Dumon G, Gabriel B, Brouillet-Gabriel MT, and Heuillet G
- Subjects
- Aged, Humans, In Vitro Techniques, Male, Adrenal Gland Neoplasms etiology, Lung Neoplasms complications, Tuberculosis, Pulmonary complications
- Published
- 1965
47. [Morphazinamide and pulmonary tuberculosis (apropos of 112 cases)].
- Author
-
Kallos S, Brouillet-Gabriel MT, and Dumon JF
- Subjects
- Adult, Humans, Male, Middle Aged, Antitubercular Agents therapeutic use, Morpholines therapeutic use, Pyrazines therapeutic use, Tuberculosis, Pulmonary drug therapy
- Published
- 1968
48. [Clinical trials of the antitussive preparation SCH 10.649].
- Author
-
Dumon G, Brouillet-Gabriel MT, and Dumon JF
- Subjects
- Antitussive Agents administration & dosage, Clinical Trials as Topic, Codeine administration & dosage, Cough drug therapy, Humans, Placebos, Antitussive Agents therapeutic use
- Published
- 1969
49. [3 years' experience with B.C.G. vaccination by multipuncture].
- Author
-
Dumon JF, Mayer M, Brouillet-Gabriel MT, and Dumon G
- Subjects
- Adolescent, Child, Child, Preschool, Humans, Infant, Methods, BCG Vaccine, Tuberculosis prevention & control
- Published
- 1969
50. [Pulmonary scintigraphy after administration of isotope aerosols. A complement to pulmonary scintigraphy after injection of macroaggregates].
- Author
-
Dumon JF, Brouillet-Gabriel MT, Leonardelli M, Paulin R, and Charrier JP
- Subjects
- Adult, Aerosols, Female, Humans, Male, Middle Aged, Radiography, Gold Colloid, Radioactive administration & dosage, Lung Diseases diagnostic imaging, Radionuclide Imaging
- Published
- 1967
Catalog
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