50 results on '"M. Nolin"'
Search Results
2. Hospital Staffing Decisions: Does Financial Performance Matter?
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Mei Zhao, Gloria J. Bazzoli, Jan P. Clement, Richard C. Lindrooth, JoAnn M. Nolin, and Askar S. Chukmaitov
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Public aspects of medicine ,RA1-1270 - Abstract
This study assesses the impact of changes in hospitals' financial conditions on changes in hospitals' staffing decisions. The sample consisted of community hospitals operating between 1995 and 2000. The analysis employed a generalized method of moments (GMM) estimator for its dynamic panel data. Cash flow and patient margin were used to measure financial condition. We estimated the effect of changing financial condition on the number of full-time equivalent personnel (FTEs), registered nurses (RNs), and licensed practical nurses (LPNs) per 1,000 adjusted patient days. Our results suggest that declining financial performance led to cutbacks in LPN FTEs per adjusted patient day, but the effects on total hospital FTEs and RN FTEs were mixed.
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- 2008
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3. FRI0518 Incidence, characteristics and management of giant cell arteritis in france: a study based on national health insurance claims data
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Sophie Gandon, E. Hachulla, M. Belhasen, M. Nolin, V. Devauchelle Pensec, Alfred Mahr, Marc Paccalin, and Isabelle Idier
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medicine.medical_specialty ,business.industry ,Hydroxychloroquine ,Retrospective cohort study ,Azathioprine ,medicine.disease ,Infliximab ,Etanercept ,Giant cell arteritis ,Internal medicine ,Epidemiology ,medicine ,Adalimumab ,business ,medicine.drug - Abstract
Background Giant cell arteritis (GCA) is an immune-mediated, primary systemic vasculitis that affects large and medium-sized arteries. GCA may cause vision loss in up to 20% and requires long term glucocorticoids (GCs). There are currently few data available in France on the epidemiology, patients’ (pts) characteristics, diagnosis and management of GCA in a real-world setting. Objectives The objectives of this study were to address these questions using Health insurance claims data. Methods This retrospective cohort study used the EGB (Echantillon Generaliste des Beneficiaires) database which is a 1% random and representative sample of the French national Health insurance system. EGB contains anonymous demographic and comprehensive medical data on conditions with long-term disease (LTD) status, hospitalizations and reimbursement claims for medications dispensed in the community. The study used the data collected between January 1, 2007 and December 31, 2015. Inclusion criteria were: 1) age ≥50 years; 2) hospitalisation for GCA or LTD status for GCA (ICD-10 codes: M31.5/6); and 3) at least 4 drug dispensing of oral GCs within 6 months around the index date. The index date was defined as the date of 1 st occurrence of GCA code and cases were considered as incident if the GCA code first occurred after ≥2 years of follow-up. Demographics, co-morbidities, diagnostic tests and therapies were analysed. A treatment sequence was defined as the start of a new drug or the resumption of the same drug after a stop ≥3 months. Annual incidence was calculated by using the people recorded in the EGB as denominator. Results Among the 7 52 717 pts recorded in the EGB, 241 pts fulfilled our criteria. Around 24 pts were newly diagnosed/year with an annual incidence of 7 to 10/100,000 people≥50 years-old. 72% of the 241 pts were females, mean age was 77.5 (±8.9) years, mean follow-up 3.7 (±2.6) years. In the 12 months before index date, 74.3% of the pts had at least 1 proxy for hypertension, 39.4% for depression/insomnia and 33.6% for osteoporosis. After index date, temporal artery biopsy (TAB) was performed in 43.2%, high-resolution Doppler ultrasound in 35.3% and positron emission tomography (PET) in 11.6%. Among the 235 pts (97.5%) who had at least 1 drug dispensing of oral GCs, 198 pts (84.3%) used only GCs while 37 (16.7%) also received 1 to 3 adjunctive agents. Mean 1 st GCs sequence duration was 17.2 months (±16.5) in 96.6%. 95 pts (40.4%) had a 2nd sequence, i.e. resume GCs and or start a new drug for a duration of 6.7 months (±8.1) for GCS alone or 12.2 months (±8.8) for GCs+adjunctive drug. The most prescribed GCs-sparing agent was methotrexate (12.0%). Others were marginal: hydroxychloroquine 7 pts, azathioprine 4, cyclophosphamide 1, infliximab 1, adalimumab 2 and etanercept 1 pt. Conclusions These real-world data indicate an incidence of GCA in France of 7 to 10 cases/100,000 people≥50 years-old and underline that most patients with GCA are treated with GCs alone whereas adjunctive agents, mainly methotrexate, are given to 17% of patients. The utilisation of TAB in only half of the patients might reflect a shift towards increasing use of imaging techniques to diagnosed GCA. Disclosure of Interest V. Devauchelle Pensec: None declared, E. Hachulla: None declared, M. Paccalin: None declared, S. Gandon Employee of: Roche SAS, I. Idier Employee of: Chugai Pharma France, M. Nolin: None declared, M. Belhasen: None declared, A. Mahr: None declared
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- 2018
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4. Incidence, caractéristiques démographiques et prise en charge de l’artérite à cellules géantes (Horton) en France : étude basée sur les données d’Assurance maladie
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Marc Paccalin, Sophie Gandon, V. Devauchelle, M. Nolin, M. Belhassen, E. Hachulla, Alfred Mahr, and I. Idier
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Gastroenterology ,Internal Medicine - Abstract
Introduction L’arterite a cellules geantes (Horton, ACG) est une vascularite systemique primitive des arteres de gros et moyen calibre. L’ACG peut entrainer une perte de vision pouvant atteindre 20 % des patients et necessite souvent la prescription de glucocorticoides (GCs) au long cours. Il existe actuellement peu de donnees en France sur l’epidemiologie de l’ACG et sur les caracteristiques des patients, l’approche diagnostique et la prise en charge therapeutique en vie reelle. Les objectifs de cette etude etaient de repondre a ces questions a l’aide des donnees d’Assurance maladie. Patients et methodes Etude de cohorte retrospective sur la base de donnees EGB (Echantillon Generaliste des Beneficiaires) qui est un echantillon aleatoire et representatif a 1 % du systeme national d’Assurance maladie contenant des donnees medicales et demographiques anonymes sur les affections de longue duree (ALD), les hospitalisations et les demandes de remboursement des medicaments delivres en ville. Donnees recueillies entre le 1/01/2007 et le 31/12/2015. Criteres d’inclusion :. – âge ≥ 50 ans ; – hospitalisation ou ALD pour ACG (codes CIM-10 : M31,5/6) ; – ≥ 4 doses de GCs administrees par os dans les 6 mois autour de la date index. Date index : date du 1er codage ACG. Les cas etaient consideres incidents si le code ACG etait apparu pour la 1ere fois apres ≥ 5 ans de suivi. La demographie, les comorbidites, les tests diagnostiques et les traitements ont ete analyses. Une sequence de traitement etait definie comme le debut d’un nouveau medicament ou la reprise du meme medicament apres un arret ≥ 3 mois. La prevalence et l’incidence annuelle ont ete calculees en utilisant les personnes enregistrees dans la base comme denominateur. Resultats Parmi les 752717 personnes enregistrees dans l’EGB, 241 ont rempli nos criteres. La prevalence etait de 150/100 000 personnes ≥ 50 ans. Environ 24 patients ont ete nouvellement diagnostiques/an avec une incidence annuelle de 7 a 10/100 000 personnes ≥ 50 ans. 72 % des 241 patients etaient des femmes, l’âge moyen etait de 77,5 ans (± 8,9) et le suivi moyen de 3,7 ans (± 2,6). Dans les 12 mois precedant la date index, 74,3 % des patients avaient ≥ 1 code(s) indiquant une HTA, 39,4 % une depression/insomnie et 33,6 % une osteoporose. Apres la date index, une biopsie de l’artere temporale (BAT) a ete faite dans 43,2 % des cas, l’echographie doppler dans 35,3 % et la TEP dans 11,6 % des cas. Parmi les 235 patients (97,5 %) ayant ≥ 1 administration de GCs par voie orale, 84,3 % ont utilise uniquement des GCs tandis que 15,7 % ont egalement recu 1 a 3 medicaments adjuvants. La duree moyenne de la 1ere sequence de GCs etait de 17,2 mois (± 16,5). 40,4 % ont eu une 2eme sequence pendant une duree de 6,7 mois (± 8,1) pour GCs seul ou 12,2 mois (± 8,8) pour les GCs + agents adjuvants. L’agent adjuvant le plus couramment prescrit etait le MTX (12 %). L’utilisation d’autres medicaments adjuvants etait marginale. Conclusion Ces donnees en vie reelle montrent une incidence d’ACG en France de 7–10/100 000 personnes ≥ 50 ans, que la plupart des patients sont traites avec des GCs seuls alors que les adjuvants, principalement le MTX, sont administres a 15 % des patients. L’utilisation de BAT chez seulement la moitie des patients pourrait refleter une evolution vers une utilisation croissante des techniques d’imagerie pour le diagnostic.
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- 2018
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5. Examination of toxicity and collagen linearity after the administration of the protein cross-linker genipin in equine tendon and dermis: a pilot study
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D Telgenhoff, M Bellefeuille, M Nolin, P Slusarewicz, and DF Peters
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Male ,Pathology ,medicine.medical_specialty ,Injections, Intradermal ,040301 veterinary sciences ,Lameness, Animal ,0206 medical engineering ,Pilot Projects ,02 engineering and technology ,0403 veterinary science ,Tendons ,chemistry.chemical_compound ,Dermis ,Tendon Injuries ,Biopsy ,medicine ,Animals ,Iridoids ,Horses ,Wound Healing ,General Veterinary ,medicine.diagnostic_test ,business.industry ,Histology ,04 agricultural and veterinary sciences ,General Medicine ,020601 biomedical engineering ,Tendon ,medicine.anatomical_structure ,chemistry ,Lameness ,Toxicity ,Genipin ,Collagen ,Swelling ,medicine.symptom ,business - Abstract
Objective Collagen cross-linking is an attractive therapeutic route aimed at supplementing natural collagen stabilisation. In this study the toxicity of the cross-linker genipin (GP) was examined in avascular (tendon) and vascular (dermis) tissue. Methods High doses of GP were injected intratendinously into three yearling horses and evaluated at various time points up to 30 days. A second group of three yearlings were injected into the dermis and evaluated at various time points up to 1 year. Metrics used included lameness, circumferential swelling, ultrasound evaluation, microscopic morphology, collagen production and systemic effect on blood parameters. Results The tendon injection sites exhibited mild lameness and swelling with no apparent systemic toxicity or stabilisation defects. Treated tendons exhibited increased linear collagen microscopically. Dermal injections showed similar results, with mild swelling at the injection site. Microscopic morphology resulted in a decrease in dermal collagen at 30 days post-injection. Dermis injected at the high dose of 355 mmol/L examined 1 year post-treatment appeared similar to the untreated biopsies; however, there was an increase in mature collagen. Conclusion GP injection appeared to be well tolerated, with transient lameness and mild circumferential swelling when injected into the tendon and local tissue swelling when injected into the dermis. No systemic hypersensitivities or toxicities were observed. Microscopically, GP resulted in increased linear collagen in tendons at 30 days post-injection and overall increased collagen in dermal tissue when evaluated 1 year post-injection.
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- 2014
6. A novel spectro-temporal approach for predicting soil physical properties
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A Michaud, G Bénié, M Nolin, and J-D Sylvain
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Environmental science - Published
- 2012
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7. Doppler indices of vascular impedance as indicators of testicular dysfunction in stallions
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Scott P. Runyon, Margo L. Macpherson, Malgorzata A. Pozor, J.F. Roser, M. Nolin, and Audrey A. Kelleman
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endocrine system ,medicine.medical_specialty ,Equine ,Chemistry ,Sperm Numbers ,Blood flow ,Testicular artery ,Sperm ,Testicular function ,Endocrinology ,medicine.artery ,Internal medicine ,medicine ,Vascular impedance ,Testicular dysfunction - Abstract
s/ Journal of Equine Veterinary Science 34( 2014) 3939 0.5 ng/ ml, and total intra-assay coefficient ofvariation for and stallions with severe testicular dysfunction. Oligo- the assay was 2.8%. spermia was induced in the stallions using a single dose of Differences between Group TREATED and Group CON- an indenonopyridine derivative, RTI-4587-073(1)( formerly TROL were analyzed using two samples t- test. Correlations called 1- CDB-4022) which is a compound with known anti- between RI, PI, total sperm number, TNPNS, total testicular spermatogenic properties. 15]. Oligospermic stallions had volume, and FSH were tested using Pearson product- cor- resistive blood flow in the testicular artery, which was re- relation procedure. flected in high values ofRI and Pl. Control stallions( normal testicular function) had non-resistive blood flow and low 3. Results values of RI and PI. The values of RI and PI were also negatively correlated with total sperm numbers, total All stallions
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- 2014
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8. Pessimistic concurrency control and versioning to support database pointers in real-time databases
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D. Nystrom, M. Nolin, A. Tesanovic, C. Norstrom, and J. Hansson
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- 2004
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9. Evaluation of component technologies with respect to industrial requirements
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A. Moller, M. Akerholm, J. Fredriksson, and M. Nolin
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- 2004
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10. [Absolute isolation of the severely burned]
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M, Nolin and P, Petrelli
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Patient Isolation ,Humans ,Burns - Published
- 1995
11. Effects of Estrogen on Prolactin (PRL) Incorporation by Lutein and Milk Secretory Cells and on Pituitary PRL Secretion in the Postpartum Rat: Correlations with Target Cell Responsiveness to PRL1
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Janet M. Nolin and E. M. Bogdanove
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medicine.medical_specialty ,Globulin ,biology ,medicine.drug_class ,Radioimmunoassay ,Cell Biology ,General Medicine ,Prolactin ,Prolactin cell ,chemistry.chemical_compound ,Endocrinology ,medicine.anatomical_structure ,Reproductive Medicine ,chemistry ,Estrogen ,Internal medicine ,Lactation ,medicine ,Estradiol benzoate ,biology.protein ,Hormone - Abstract
The relationships between cell function and the incorporation of endogenous prolactin (PRL) by milk secretory cells (MSC) and lutein cells (LC) were examined in lactating rats which had been given graded estradiol treatment designed to dissociate progressively the activities of these two PRL target cell populations, decreasing MSC function while maintaining or augmenting LC function. MSC function was assessed by monitoring pup growth and by histological study of mammary tissue. LC function was assessed by radioimmunoassay (RIA) of circulating progesterone (P) and 20a-hydroxyprogesterone (2Ooi) and by histological evaluation of ovaries. PRL availability was assessed by RIA of serum PRL and by morphological evaluation of pituitary PRL cells. Intra cellular distributions of endogenous PRL in both target tissues were examined immunohisto chemically. The availability of PRL binding sites was also examined in MSC from rats given the highest dose of estrogen. As estrogen dosage increased, PRL secretion was maintained, or increased. Despite this, there Was progressive lactational failure, accompanied by a graded failure of PRL incorporation into MSC. These cells appeared to lose, successively, their abilities to translocate PRL to nuclei, to transport it from basal to apical regions of the cell and ultimately, with the highest dose of estro gen, to internalize or even recognize PRL, as evidenced by the absence of not only PRL, but even PRL-binding sites. In contrast, as estrogen dosage increased, titers of P and P/20o ratios remained high and LC showed progressive morphological signs of not only increased activity (hypertrophy, nucleolar enlargement) but augmented incorporation of PRL. Thus, in both MSC and LC, estrogen produced a spectrum of variations in responsiveness to PRL; this spectrum was correlated with a series of effects on PRL incorporation by these cells. These estrogenic modulations of PRL action might, therefore, involve regulating the access of this protein hormone to various intracellular control points. 394 NOLIN AND BOGDANOVE MATERIALS AND METHODS Two experiments were performed. In the first, 6 rats (CD strain, Charles River Breeding Laboratories, Inc.), each nursing her own litter of 9—li pups, were given estrogen by implantation of open-ended 5 mm sections of polyethylene tubing (innramedic PE5O, Clay Adams Co., 0.584 mm i.d. ; 0.965 mm o.d.) packed with crystalline estradiol 3,17-dipropionate (ED Lot no. 179—812, Dextran Chemicals, Inc.). A 23 gauge stylus was used to pack the tubing. Each rat was lightly anesthetized with ether on Day 4 of lactation and a short, shallow-beveled 17 gauge needle, fitted with a stylus, was used to inject 1 implant into each of 3 mammary glands. The rats were not handled again until Day 14, when they were decapitated and their ovaries, pituitaries and mammary glands were col lecned, fixed in Bouin's fluid and processed for im munohistochemical study, as described below. The second study was done to examine the possi ble dose dependency of the estrogen effects observed in the first study. Thirty pregnant rats of the same (CD) strain were used. Beginning “? vi week prior no delivery, the rats were caged individually in 23 X 20 X 14 cm clear plastic boxes with wire tops in a room with lights on 14 h/day (0500—1900 h) and an ambi cnn temperature of 23 ±1°C.Food and water were continuously available. All rats delivered on the same day (Day 1 of lactation). Immediately after delivery, pups were counted. Six rats that delivered less than 8 pups each were discarded. Some of their pups, as well as those in excess of 10/litter from the other rats, were used where necessary to equalize all litters no 10 pups. Twenty-four families were then divided into 4 groups of 6 families each. At “? “1000 h of Day 4, each mother and each litter were weighed. Mothers were non weighed again until Day 15. Litters were weighed on alternate mornings and on the morning of Day 15. Estradiol benzoate (EB, Progynon benzoane, 6CX2P96706, Corp.) was given to 18 of the mothers at “? †v1700 h on Days 4—14(11 days). Six mothers were given each dose of EB (1.0, 4.0 or 16.0 Mg)by s.c. injection in 200 p1 sesame oil (U.S.P. 0-154, Fisher Scientific Co.). The remaining 6 mothers, 3 injected with oil and 3 untreated, served as controls Since the 2 control groups did non differ, they are considered as 1 group under Results. Between 1600—1800 on Day 15, mothers were rapidly decapitated. Trunk blood was collected and refrigerated until sera could be separated an “? v1830 h. Terminal body weights were obtained by adding the weights of the trunk, head and extravasated blood. Pituinaries, mammary glands and ovaries were removed and placed in Bouin's fluid. Pups were killed by cervical dislocation. Sera collected from 2 adult male rats, killed in the same way, served as controls for the lack of stress-induced PRL release (Nolin en al., 1977). Sera were divided into 2 aliquots/sample and frozen immediately. One sen of aliquons was stored an —? 40°C until thawed for RIA of PRL, after which any residual serum was refrozen and stored further at —? 40°C. Through error, the other set was kept an —? 5°C until, 15 months later, it was assayed for progesterone (P) and 2Os-hydroxyprogesnerone (20o), together with some of the samples which had been stored an —? 40°C, using a method and antiserum described previously (Beatnie en al., 1977; Resko et al., 1974). Serum PRL radioimmunoassay was done with the NIAMDD antiserum to rat PRL (S-i), as previously reported (Nolin en al., 1977). Duncan's multiple comparison test was used for statistical evaluation of hormone concentration differences. After fixation, pituitaries, mammary glands and ovaries were dehydrated, embedded in paraffin, sectioned serially at 5 pm and stained for endogenous PRL by the immunohistochemical method described in detail previously (Nolin and Witorsch, 1976). Reagents used in the present study were: goat anti serum to monkey 7-globulin (G61-1, Antibodies, Inc.), rabbit antiserum no ran PRL (APRL: NIAMDD anti-rat PRL 53) and goat antiserum to rabbit -y globulin (AR'@C;65-159-1, Miles Laboratories). AR'yG was conjugated no peroxidase by the method of Nakane and Kawaoi (1974). Diaminobenzidine:H2 02 was used as the chromogenic substrate. Fully absorbed APRL (ABS APRL), used in the primary test for PRL specificity of the staining reac tion, was prepared by mixing 1 ml APRL (1:50) with 8 @gNIAMDD rat PRL 1-2. Material stained via APRL binding was identified as PRL only if it was tonally unstained in adjacent serial sections when ABS-APRL was used in place of APRL in an otherwise identical reaction sequence. Pituitaries were subjected to the same protocol as target tissues, providing an adjunctive nest of method specificity (see Nolin 1978a, footnote 2). Mammary glands from the ED implant group were also subjected to immunohisnochemical testing for the presence of PRL binding sites which could bind exogenous PRL (Nolin and Witorsch, 1976). For this, sections were preincubaned with exogenous PRL (NIAMDD ran PRL 1-2, in amounts ranging from 15—1500 pg/section) prior to application of APRL in the PRL-staining sequence. Maternal Weights RESULTS Data were non obtained in the first experi ment (rats with ED implants). In the second, mean maternal weight on Day 4 was 288 ±9 g. On Day 15, the mean weights for controls and the 1, 4 and 16 pg/day EB treated rats were 310 ± 11, 294± 9, 304 ±7 and 292 ±8 g, respectively. The differences among the 4 groups were not statistically significant.
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- 1980
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12. The Ontogeny of Immunoreactive, Endogenous FSH and LH in the Rat Ovary during Early Folliculogenesis
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S. L. Quattropani, G. W. Mulheron, and J. M. Nolin
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Aging ,Cytoplasm ,endocrine system ,medicine.medical_specialty ,Ovary ,Biology ,General Biochemistry, Genetics and Molecular Biology ,Immunoenzyme Techniques ,Ovarian Follicle ,Internal medicine ,Follicular phase ,medicine ,Animals ,Cell Nucleus ,Granulosa Cells ,Germinal vesicle ,Immune Sera ,Rats, Inbred Strains ,Luteinizing Hormone ,Oocyte ,Rats ,medicine.anatomical_structure ,Endocrinology ,Oocytes ,Female ,Folliculogenesis ,Follicle Stimulating Hormone ,Luteinizing hormone ,Germ cell - Abstract
Rabbit antisera to rat pituitary follicle-stimulating hormone (FSH) and to rat luteinizing hormone (LH) were used, in an immunocytochemical probe, to determine the ontogeny and distribution of immunoreactive, endogenous, intraovarian FSH and LH in immature rats. Ovaries from rats 4, 8, 12, and 21 days of age were studied. Both gonadotrophins were first immunodetectable on Day 8. In reactive primordial follicles, LH was restricted to the cytoplasm and nuclei of the surrounding follicle cells. In those follicles possessing both squamous and cuboidal follicle cells, i.e., transitional between primordial and primary, LH was found in both the cytoplasm and nuclei of both follicle cell types. In primary follicles, LH was no longer present in granulosa cells but was concentrated in germ cell cytoplasm. In contrast, in primordial follicles, FSH was restricted to the germ cell but was present in both the oocyte cytoplasm and germinal vesicle. In transitional and primary follicles, FSH remained within the oocyte cytoplasm and germinal vesicle but also became detectable within the cytoplasm and nuclei of granulosa cells. These findings raise some important new questions regarding the role(s) of the gonadotrophins in early follicular development.
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- 1989
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13. Does androgen influence prolactin secretion?
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J. M. Nolin, D. D. Nansel, E. M. Bogdanove, and G. T. Campbell
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Male ,Ventral prostate ,endocrine system ,medicine.medical_specialty ,medicine.drug_class ,Biology ,urologic and male genital diseases ,Sex Factors ,Estrus ,Pregnancy ,Internal medicine ,medicine ,Animals ,Testosterone ,Secretion ,Castration ,Drug Implants ,Estradiol ,Prostate ,Dihydrotestosterone ,General Medicine ,Luteinizing Hormone ,Androgen ,Prolactin ,Rats ,Endocrinology ,Female ,hormones, hormone substitutes, and hormone antagonists ,medicine.drug - Abstract
In both intact and castrated male and female rats, administration of the A-ring reduced androgen, dihydrotestosterone (DHT), consistently failed to stimulate prolactin (PRL) secretion although it inhibited LH release and, in males, stimulated ventral prostate growth. In intact females, but not in the other types of rat, DHT actually suppressed PRL release. These findings do not support generalizations, based entirely on findings with testosterone, that both "androgens" and estrogens exert stimulatory actions on PRL secretion. The distinct stimulatory effects of testosterone and its esters on PRL secretion seem attributable, not to their androgenic actions per se, but to the ability of testosterone to form estrogenic metabolites. This ability does not appear to be shared by the "pure" androgen, DHT.
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- 1977
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14. Incorporation of Endogenous Prolactin by Granulosa Cells and Dictyate Oocytes in the Postpartum Rat: Effects of Estrogen1
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Janet M. Nolin
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endocrine system ,medicine.medical_specialty ,food.ingredient ,medicine.drug_class ,media_common.quotation_subject ,Cell Biology ,General Medicine ,Biology ,Follicular fluid ,Oogenesis ,Prolactin ,Dictyate ,food ,Endocrinology ,Reproductive Medicine ,Estrogen ,Internal medicine ,Yolk ,medicine ,Ovulation ,hormones, hormone substitutes, and hormone antagonists ,Postpartum period ,media_common - Abstract
Ovarian follicles were examined for the presence and distribution of endogenous PRL in nor mally lactating control rats and comparable rats which had been subjected no a variety of annilacta tional, luteonropic estrogen treatments. Control ovaries contained both preantral follicles and annral follicles up to 500 @m in diameter. In healthy antral follicles, PRL was present in the cyno plasm and nuclei of granulosa cells (GC), in follicular fluid (FF) and also in the cytoplasm of the manuring dicnyane oocynes (OC), where ins lattice-like distribution resembled that of, and sug gesned an association with, yolk material. PRL was distributed similarly in OC of healthy preannral follicles, but in was absent from the surrounding GC. In anresia, both GC and OC showed disturb ances of PRL distribution (absence from GC nuclei, irregular staining of yolk lattice) or complete absence of staining for PRL. The changes in OC were seen in rats given only 4 @g estradiol benzo ate/day. Stronger estrogen treatments produced anrenicchanges in GC as well. These findings suggest at least two periods of PRL incorporation by healthy dicnyane OC: one prior no, or early in, the stage of meionic arrest, the other during preovulanory manuranional en largement. During the later period, when PRL is transported no the OC through GC cytoplasm and FF, in also enters GC nuclei. The prolonged retention of PRL within the OC and ins renewed in corporation as this cell approaches innerphase, together with recent evidence that PRL may play a role in the inhibition of meiosis in mammalian oocynes, suggest that the specific local resistance no ovulation -inducing stimuli, which is needed for both selective maintenance of the dicnyane state and fine control of preovulatory maturation, might be a function of the PRL snored within the OC itself.
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- 1980
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15. Qualitative and quantitative gonad-pituitary feedback
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E M, Bogdanove, J M, Nolin, and G T, Campbell
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Male ,Ovary ,Prostate ,Brain ,Thyrotropin ,Dihydrotestosterone ,Organ Size ,Luteinizing Hormone ,Models, Biological ,Feedback ,Rats ,Sex Factors ,Pituitary Gland ,Testis ,Animals ,Female ,Testosterone ,Castration ,Follicle Stimulating Hormone ,Thyrotropin-Releasing Hormone - Published
- 1975
16. Intracellular prolactin in rat corpus luteum and adrenal cortex
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Janet M. Nolin
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Male ,endocrine system ,Pituitary gland ,medicine.medical_specialty ,Ovary ,Biology ,Endocrinology ,Sex Factors ,Zona fasciculata ,Corpus Luteum ,Pregnancy ,Lactation ,Internal medicine ,medicine ,Animals ,Adrenal cortex ,Histocytochemistry ,Prolactin ,Rats ,medicine.anatomical_structure ,Adrenal Cortex ,Female ,Corpus luteum ,hormones, hormone substitutes, and hormone antagonists ,Hormone - Abstract
This study was done to examine whether PRL, which appears in both active milk secretory cells (MSC) (1) and milk (1,2) during normal lactation, could also be detected in PRL target cells which do not transfer this hormone into an exocrine secretory product. Ovaries, adrenals, and mammary and pituitary glands were collected from actively nursing rats decapitated on day 15 post-partum. All four tissues were processed for light microscopic immunohistochemical identification of PRL. Immunoreactive PRL was again found in pituitary PRL cells and in MSC. It was also detected within both lutein and adrenal cortical cells (zona fasciculata). In all three target tissues, PRL was present in target cell cytoplasm, but, in MSC and adrenal cells, it was also found occasionally in nuclei. These findings, which seem to indicate that transfer into an exocrine secretory product cannot be the only possible explanation for the appearance of this protein hormone inside its target cells, extend the evidence suggesting that PRL may have intracellular sites of action.
- Published
- 1978
17. Incorporation of endogenous prolactin by granulosa cells and dictyate oocytes in the postpartum rat: effects of estrogen
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J M, Nolin
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Granulosa Cells ,Estradiol ,Pregnancy ,Ovary ,Postpartum Period ,Oocytes ,Animals ,Lactation ,Female ,Ovum ,Prolactin ,Rats - Published
- 1980
18. Incorporation of regulatory peptide hormones by individual cells of the adrenal cortex: prolactin-adrenocorticotrophin differences
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Janet M. Nolin
- Subjects
endocrine system ,medicine.medical_specialty ,Physiology ,Endogeny ,Biology ,Peptide hormone ,Biochemistry ,Cellular and Molecular Neuroscience ,Endocrinology ,Adrenocorticotropic Hormone ,Pregnancy ,Internal medicine ,medicine ,Animals ,Lactation ,Adrenal cortex ,Adrenal gland ,Histocytochemistry ,Immune Sera ,Prolactin ,Rats ,medicine.anatomical_structure ,Cytoplasm ,Pituitary Gland ,Adrenal Cortex ,Female ,Adrenal medulla ,hormones, hormone substitutes, and hormone antagonists ,Hormone - Abstract
Recent refinements in methodology now permit the study of endogenous peptide hormones in their individual target cells. The investigations reported here deal with the question of whether endogenous ACTH can be detected in its target cells in the highly active adrenal gland of the normally lactating rat. This question was examined with immunohistochemistry. ACTH was found in both cytoplasm and nuclei of adrenal glomerulosa cells. In cells of the fasciculata and reticularis layers of the adrenal cortex, it did not appear inside nuclei but was present in the cytoplasm and on the nuclear envelope. The distribution of ACTH was compared with and found to be different from that of PRL. PRL, confirming previous findings, was not detectable at all in glomerulosa cells and, in cells of the inner cortical zones, was present in both cytoplasm and nuclei. In neither case was hormone found in the adrenal medulla. The apparent feasibility of studying peptide regulators such as ACTH and PRL in their individual target cells may be a focal point for an acceleration of our understanding of how these peptides work.
- Published
- 1980
19. On the Intrinsic Ovarian Control of the Developmental Transition from Primordial to Primary Follicle
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S. L. Quattropani, G. W. Mulheron, and J. M. Nolin
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Andrology ,Estrous cycle ,endocrine system ,Transition (genetics) ,Granulosa cell ,Endogeny ,Folliculogenesis ,Biology ,hormones, hormone substitutes, and hormone antagonists - Abstract
In studies designed to immunocytochemically map the distribution of endogenous pituitary FSH and LH in preovulatory follicles in the rat, we discovered that both gonadotropins were detectable in both primordial and primary follicles. These findings were explored and the results are reported here.
- Published
- 1987
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20. Profiles of Target-Cell Prolactin and Adrenocorticotropin during Lactational Diestrus
- Author
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Janet M. Nolin
- Subjects
Estrous cycle ,medicine.medical_specialty ,Adrenal cortex ,Radioimmunoassay ,Biology ,Prolactin ,Prolactin cell ,Endocrinology ,medicine.anatomical_structure ,Lactation ,Internal medicine ,medicine ,Bioassay ,Hormone - Abstract
Endocrinology can be viewed as a very old science when one considers that ablation of certain of the glands of internal secretion, in particular the gonads, was practiced very early on in our history. (One can even postulate that the bravest among some of our ancestors got hold of a saber-toothed tiger long enough to turn him into a pussycat!) It was not until whole organs, homogenates, or extracts were tested for activity that could repair a deficiency, however, that modern endocrinology began about a century ago. This sort of qualitative bioassay approach continued to be used well past the first third of the present century and involved hormones exclusively in their glands of origin, i.e., hormones in very large amounts. As bioassay sensitivities were improved, detection of a relatively wide range of concentrations became possible in the late 1940’s and 1950’s, and during this period it even became possible to detect some hormones in transit to their targets, but again, the amounts that could be detected were present at the lower concentrations that could be measured in tissues of origin, and therefore the improved methods could detect hormones in blood only if they were present in supraphysiological amounts. Then, in the late 1960’s and early 1970’s, came radioimmunoassays (RIAs) and radioreceptor assays (RRAs) that allowed the study of hormones in transit, not only in physiological, but also in subphysiological, concentrations.
- Published
- 1981
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21. Qualitative and Quantitative Gonad–Pituitary Feedback
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E. M. Bogdanove, G.T. Campbell, and J. M. Nolin
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endocrine system ,medicine.medical_specialty ,Gonad ,medicine.drug_class ,medicine.medical_treatment ,Secretory Rate ,Tropic hormone ,Biology ,Androgen ,Steroid ,Endocrinology ,medicine.anatomical_structure ,Anterior pituitary ,Sex steroid ,Internal medicine ,medicine ,hormones, hormone substitutes, and hormone antagonists ,Hormone - Abstract
Publisher Summary This chapter presents a line of evidence that for at least one anterior pituitary hormone, feedback control is not only quantitative but also qualitative. This means that the target gland—in this case, the gonad in its “back-talk” to the pituitary or brain-pituitary system—can dictate not only the amount of tropic hormone to be secreted but also the kind of tropic hormone. The chapter presents an evidence that in a rat, there is a set of changes in the biological and chemical characteristics of the FSH secreted by the pituitary that seems to bear no fixed relationship to either the degree or direction of any concomitant quantitative changes in FSH and LH secretory rates. These qualitative changes can be induced rapidly by alterations in the gonadal steroid environment to which the pituitary or brain-pituitary system is exposed. Furthermore, they can occur within a physiological range of circulating sex steroid levels. In the absence of gonadal steroids, the pituitary of the rat synthesizes, stores, and releases a type of FSH that is called “neuter-FSH.” In response to androgen replacement, both stored and circulating forms of FSH change in three ways. The pituitary begins to secrete a different hormone, “andro-FSH,” for which the index of discrimination, apparent molecular size, and capacity to survive in the circulation all are greater than they are for “neuter-FSH.” Ovarian steroid(s) appear to have an opposite effect. The index of discrimination for the FSH in female rat pituitaries is low, and the apparent molecular size of this FSH is even less than that of “neuter-FSH.” It seems reasonable to speculate that the female rat releases a relatively short-lived “gyno-FSH” into the circulation. The chapter also discusses the discovery of the types of FSH heterogeneity.
- Published
- 1975
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22. Target Cell Prolactin
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Janet M. Nolin
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endocrine system ,medicine.medical_specialty ,education.field_of_study ,Lutein Cell ,Cell ,Population ,Mammary gland ,Biology ,Prolactin ,Prolactin cell ,medicine.anatomical_structure ,Endocrinology ,Internal medicine ,medicine ,education ,Corpus luteum ,hormones, hormone substitutes, and hormone antagonists ,Hormone - Abstract
Prolactin (PRL) is a pluritrophic protein hormone that exerts multiple actions not only on different target tissues but also even within a single target cell population. Its modus operandi, however, has been elusive.
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- 1978
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23. Effects of estrogen on prolactin (PRL) incorporation by lutein and milk secretory cells and on pituitary PRL secretion in the postpartum rat: correlations with target cell responsiveness to PRL
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J M, Nolin and E M, Bogdanove
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Mammary Glands, Animal ,Corpus Luteum ,Pituitary Gland, Anterior ,Pregnancy ,Luteal Cells ,Postpartum Period ,Animals ,Lactation ,Estrogens ,Female ,Prolactin ,Rats - Published
- 1980
24. The prolactin incorporation cycle of the milk secretory cell. An integral component of the prolactin response cycle
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J M Nolin
- Subjects
Cell Nucleus ,medicine.medical_specialty ,Cytoplasm ,Histology ,Component (thermodynamics) ,Biology ,Prolactin ,Rats ,Endocrinology ,Mammary Glands, Animal ,Milk ,Internal medicine ,Pituitary Gland ,medicine ,Animals ,Lactation ,Female ,Anatomy ,Secretory cell - Published
- 1979
25. Detection of endogenous immunoreactive prolactin in rat mammary epithelial cells during lactation
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J M, Nolin and R J, Witorsch
- Subjects
Binding Sites ,Mammary Glands, Animal ,Pregnancy ,Immunologic Techniques ,Animals ,Lactation ,Epithelial Cells ,Female ,Epithelium ,Prolactin ,Rats - Abstract
The question of whether endogenous prolactin might be detectable in normally lactating rat mammary glands (LMG) was examined by light microscopic immunohistochemistry. In an initial study, sections of LMG were incubated sequentially with I) rabbit anti-rat prolactin (APRL); II) anti-rabbit gamma globulin: peroxidase conjugate (ARgammaG-per), prepared from goat anti-rabbit gamma globulin and horseradish peroxidase, and III) 3,3'-diaminobenzidine mixed with H2O2(DAB). Use of this three-step procedure led to staining of stromal, parenchymal and intraluminal elements. However, control procedures which ommitted step I produced similar staining, caused by direct binding of the ARgammaG-per to endogenous tissue components (possibly rat immunoglobulins). This precluded detection of indirect, APRL-linked, binding of ARgammaG-per. In subsequent experiments, direct binding of ARgammaG-per was prevented by preincubating LMG sections with goat anti-monkey gamma globulin (AMgammaG), following which, the three-step reaction sequence (APRL, ARgammaG-per and DAB) led to APRL-dependent staining, both within the alveolar lumina and in the apices of epithelial cells. This staining, presumably of endogenous prolactin, appeared to be specific, since it did not occur when absorbed APRL (APRL admixed with highly purified rat prolactin) was substituted for APRL in step I of the reaction sequence. In contrast, when an incubation with purified rat prolactin was interposed between the AMgammaG pretreatment and the three-step reaction sequence, staining of epithelial elements was intensified, indicating that these cells had contained unoccupied prolactin-binding sites. The apparent presence of both prolactin-binding sites and endogenous immunoreactive prolactin in LMG alveolar cells strongly suggests that this protein hormone can enter these target cells under physiological conditions.
- Published
- 1976
26. Target cell prolactin, II
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J M, Nolin
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Pituitary Gland, Anterior ,Receptors, Prolactin ,Animals ,Humans ,Receptors, Cell Surface ,Lysosomes ,Models, Biological ,Cytoskeleton ,Prolactin - Abstract
Is the entry hypothesis compatible with all the existing data about "the" second messenger for prolactin listed in Section II? All of these messengers, in some way either participate in, or modify, prolactin's actions or, in an end point-dependent manner, may actually mimic prolactin. There remains considerable uncertainty as to whether these findings reflect phenomena, some independent of and others quite dependent upon entry, on the one hand, or merely portions of a relatively large number of molecular cascades, some (but not necessarily all) begun initially at the plasmalemma and many (if not all) orchestrated toward completion by intracellular prolactin or agonist-receptor complex.
- Published
- 1985
27. On the intrinsic ovarian control of the developmental transition from primordial to primary follicle
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G W, Mulheron, S L, Quattropani, and J M, Nolin
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Ovarian Follicle ,Ovary ,Oocytes ,Animals ,Female ,Rats, Inbred Strains ,Follicle Stimulating Hormone ,Rats - Published
- 1987
28. Target Cell Prolactin, II
- Author
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Janet M. Nolin
- Subjects
endocrine system ,medicine.medical_specialty ,Cell ,Biology ,Prolactin ,Prolactin cell ,Glandula endocrina ,Endocrinology ,medicine.anatomical_structure ,Internal medicine ,Second messenger system ,medicine ,Neuroscience ,hormones, hormone substitutes, and hormone antagonists ,Intracellular - Abstract
Is the entry hypothesis compatible with all the existing data about "the" second messenger for prolactin listed in Section II? All of these messengers, in some way either participate in, or modify, prolactin's actions or, in an end point-dependent manner, may actually mimic prolactin. There remains considerable uncertainty as to whether these findings reflect phenomena, some independent of and others quite dependent upon entry, on the one hand, or merely portions of a relatively large number of molecular cascades, some (but not necessarily all) begun initially at the plasmalemma and many (if not all) orchestrated toward completion by intracellular prolactin or agonist-receptor complex.
- Published
- 1985
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29. Localization of thioesterase II, the chain-length regulatory enzyme of milk fatty acid synthesis, in rat mammary gland epithelial cells
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Janet M. Nolin, Stuart Smith, and Betty J. Thompson
- Subjects
medicine.medical_specialty ,Endocrinology, Diabetes and Metabolism ,Mammary gland ,Epithelium ,chemistry.chemical_compound ,Endocrinology ,Mammary Glands, Animal ,Biosynthesis ,Thermolysin ,Pregnancy ,Internal medicine ,medicine ,Animals ,Lactation ,Fatty acid synthesis ,chemistry.chemical_classification ,Fatty acid ,Epithelial Cells ,Rats, Inbred Strains ,Rats ,medicine.anatomical_structure ,chemistry ,Biochemistry ,Collagenase ,Immunologic Techniques ,Female ,Thiolester Hydrolases ,Fatty Acid Synthases ,Digestion ,medicine.drug - Abstract
Two approaches were used to establish the intercellular distribution of fatty acid synthetase and thioesterase II in the lactating rat mammary gland. Thioesterase II is the chain-length regulatory enzyme in the biosynthesis of the medium-chain fatty acids characteristic of milk fat. Using immunohistochemical techniques, immunoreactive fatty acid synthetase was found in both mammary adipocytes and epithelial cells; in contrast, immunoreactive thioesterase II was confined to the epithelial cells. In metabolic studies, adipocytes and epithelial cells were isolated from lactating rat mammary glands after digestion with collagenase and thermolysin, and their lipogenic activity was studied using isotopically labelled acetate. Consistent with the immunohistochemical data, adipocytes synthesized exclusively long-chain fatty acids whereas epithelial cells synthesized predominantly medium-chain fatty acids. The results indicate that the capacity for synthesis of medium-chain fatty acids is a unique property of the epithelial cell component of the mammary gland.
- Published
- 1982
30. Trajectories of Controller Therapy Use Before and After Asthma-Related Hospitalization in Children and Adults: Population-Based Retrospective Cohort Study.
- Author
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Belhassen M, Nolin M, Jacoud F, Marant Micallef C, and Van Ganse E
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- Adolescent, Humans, Adult, Child, Bayes Theorem, Prospective Studies, Retrospective Studies, Hospitalization, Research Design, Asthma drug therapy, Asthma epidemiology
- Abstract
Background: Inappropriate use of inhaled corticosteroids (ICSs) for asthma impairs control and may cause exacerbation, including asthma-related hospitalization (ARH). In prospective studies, ICS use peaked around ARH, but information on routine care use is limited. Since ARH is a major outcome, controller therapy use in routine care before and after ARH should be documented., Objective: This study aimed to distinguish ICS use typologies (trajectories) before and after ARH, and assess their relationships with sociodemographic, disease, and health care characteristics., Methods: A retrospective cohort study was performed using a 1% random sample of the French claims database. All patients hospitalized for asthma between January 01, 2013, and December 31, 2015, were classified as either children (aged 1-10 years) or teens/adults (aged ≥11 years). Health care resource use was assessed between 24 and 12 months before ARH. ICS use was computed with the Continuous Measures of Medication Acquisition-7 (CMA7) for the 4 quarters before and after ARH. Initially, the overall impact of hospitalization on the CMA7 value was studied using a segmented regression analysis in both children and teens/adults. Then, group-based trajectory modeling differentiated the groups with similar ICS use. We tested different models having 2 to 5 distinct trajectory groups before selecting the most appropriate trajectory form. We finally selected the model with the lowest Bayesian Information Criterion, the highest proportion of patients in each group, and the maximum estimated probability of assignment to a specific group., Results: Overall, 863 patients were included in the final study cohort, of which 447 (51.8%) were children and 416 (48.2%) were teens/adults. In children, the average CMA7 value was 12.6% at the start of the observation period, and there was no significant quarter-to-quarter change in the value (P=.14) before hospitalization. Immediately after hospitalization, the average CMA7 value rose by 34.9% (P=.001), before a significant decrease (P=.01) of 7.0% per quarter. In teens/adults, the average CMA7 value was 31.0% at the start, and there was no significant quarter-to-quarter change in the value (P=.08) before hospitalization. Immediately after hospitalization, the average CMA7 value rose by 26.9% (P=.002), before a significant decrease (P=.01) of 7.0% per quarter. We identified 3 and 5 trajectories before ARH in children and adults, respectively, and 5 after ARH for both groups. Trajectories were related to sociodemographic characteristics (particularly, markers of social deprivation) and to potentially inappropriate health care, such as medical management and choice of therapy., Conclusions: Although ARH had an overall positive impact on ICS use trajectories, the effect was often transient, and patient behaviors were heterogeneous. Along with overall trends, distinct trajectories were identified, which were related to specific patients and health care characteristics. Our data reinforce the evidence that inappropriate use of ICS paves the way for ARH., (©Manon Belhassen, Maeva Nolin, Flore Jacoud, Claire Marant Micallef, Eric Van Ganse. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 26.09.2023.)
- Published
- 2023
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31. Healthcare resource use and associated costs in patients receiving pirfenidone or nintedanib for idiopathic pulmonary fibrosis.
- Author
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Cottin V, Spagnolo P, Bonniaud P, Dalon F, Nolin M, Kirchgässler KU, Van Ganse E, and Belhassen M
- Subjects
- Humans, Indoles therapeutic use, Delivery of Health Care, Idiopathic Pulmonary Fibrosis drug therapy, Idiopathic Pulmonary Fibrosis epidemiology
- Abstract
Background: Real-world data regarding health-care resource use (HCRU) and costs of idiopathic pulmonary fibrosis (IPF) are scarce. In France, at the time of the study, pirfenidone and nintedanib were reimbursed for documented IPF only, with similar reimbursement criteria with regard to disease characteristics, prescription through a dedicated form, and IPF diagnosis established in a multidisciplinary setting. The objective of this study was to evaluate costs related to HCRU in patients newly treated with pirfenidone or nintedanib in 2015-2016, in France, using the exhaustive claims data of the French National Health System., Methods: Patients aged <50 years or who had pulmonary fibrosis secondary to an identified cause were excluded. HCRU-related costs up to 31 December 2017 were compared using generalized linear models adjusted for age, sex, year of treatment initiation, time to treatment initiation and proxies of disease severity identified during a pre-treatment period., Results: During the study period, a treatment with pirfenidone or nintedanib was newly initiated in 804 and 509 patients, respectively. No difference was found between groups for age, sex, time to treatment initiation, Charlson comorbidity score, and number of hospitalisations or medical visits prior to treatment initiation. As compared to pirfenidone, nintedanib was associated with higher costs for medications (1.2; 95% CI, 1.1-1.3) and medical visits (1.3; 95% CI, 1.2-1.4), as well as a higher global cost (1.1; 95% CI, 1.0-1.2). The costs of medical procedures, hospitalizations and indirect HCRU did not statistically differ between the two cohorts., Conclusions: This observational study identified potential differences in HCRU-related costs under newly prescribed antifibrotic drugs, deserving further explorations., Competing Interests: Declaration of Competing Interest F. Dalon, M. Nolin and M. Belhassen are full-time employees of PELyon. E. Van Ganse is the scientific advisor of PELyon. K.-U. Kirchgässler is an employee and shareholder of F. Hoffmann-La Roche, Ltd. V. Cottin reports personal fees and non-financial support from Actelion, Bayer/MSD and Roche; grants, personal fees and non-financial support from Boehringer Ingelheim; personal fees from Novartis, Sanofi, Promedior, Celgene, Galapagos and Galecto, outside the submitted work. P. Spagnolo reports institutional grants, consulting fees and non-financial support from PPM Services; institutional grants, personal fees and non-financial support from Roche and Boehringer Ingelheim; personal fees from Chiesi, Galapagos, Lupin, Pieris and REDX Pharma, outside the submitted work. P. Bonniaud reports personal fees and non-financial support from Roche, Boehringer Ingelheim, Novartis, Sanofi, Chiesi, AstraZeneca, Stallergenes and GSK, outside the submitted work., (Copyright © 2022 SPLF and Elsevier Masson SAS. All rights reserved.)
- Published
- 2023
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32. Comparative non-persistence in the first year of treatment with oral anticoagulants in patients with atrial fibrillation: A French comprehensive nationwide study.
- Author
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Danchin N, Steg G, Mahé I, Hanon O, Jacoud F, Nolin M, Dalon F, Cotte FE, Gollety S, Van Ganse E, and Belhassen M
- Subjects
- Humans, Dabigatran, Rivaroxaban, Anticoagulants, Administration, Oral, Retrospective Studies, Atrial Fibrillation complications, Atrial Fibrillation diagnosis, Atrial Fibrillation drug therapy, Stroke diagnosis, Stroke epidemiology, Stroke etiology
- Abstract
Background: Direct oral anticoagulants (DOACs) were developed as an alternative to vitamin K antagonists (VKAs) and are commonly used for stroke prevention in patients with non-valvular atrial fibrillation (NVAF). Unlike VKAs, DOACs do not require Internal Normalized Ratio (INR) monitoring, but regular intake is as important for effective anticoagulation., Objectives: This study examined treatment persistence among patients receiving oral anticoagulants (OACs) for NVAF., Methods: Within the French healthcare claims database (SNDS), we assessed and compared the rates of non-persistence (≥ 30-day treatment gap) among patients with NVAF initiating an OAC between January 2014 and December 2016. The time-to-event of non-persistence was computed and plotted using a cumulative incidence function accounting for the competing risk of mortality. After adjusting on confounding factors, the risk for non-persistence was compared between apixaban and each other OACs using a Cox proportional hazard model, or Fine and Gray models., Results: In a cohort of 321,501 OAC-naive patients with NVAF, the cumulative incidence of non-persistence at 12 months considering competing risk was 44.3%, 31.0%, 41.3% and 46.8% for VKAs, apixaban, rivaroxaban and dabigatran, respectively. Median therapy duration before non-persistence ranged between 70 and 121 days. Non-persistence was lower with apixaban compared with VKAs (HR=0.63, 95%CI=[0.62-0.64]), rivaroxaban (HR=0.71, 95%CI=[0.70-0.73]), and dabigatran (HR=0.60, 95%CI=[0.59-0.62])., Conclusions: In this nationwide observational study, non-persistence rates of oral anticoagulant treatment were high in patients treated for NVAF. Apixaban-treated patients seem to experience lowest discontinuation rates 12 months after treatment initiation compared to patients treated with any other OAC., (Copyright © 2022 The Authors. Published by Elsevier Masson SAS.. All rights reserved.)
- Published
- 2022
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33. Differences in severe exacerbations rates and healthcare utilisation in COPD populations in the UK and France.
- Author
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Whittaker H, Van Ganse E, Dalon F, Nolin M, Marrant-Micallef C, Pison C, Ryan DP, Deslee G, Quint JK, and Belhassen M
- Subjects
- Disease Progression, France epidemiology, Humans, Patient Acceptance of Health Care, United Kingdom epidemiology, Pulmonary Disease, Chronic Obstructive epidemiology, Pulmonary Disease, Chronic Obstructive therapy
- Abstract
Introduction: Chronic obstructive pulmonary disease (COPD) is a leading cause of mortality in Europe; however, it is important to understand how clinical practice patterns differ between countries and how this might relate to disease outcomes, to identify ways of improving local disease management. We aimed to describe and compare the management of patients with COPD in the UK and France between 2008 and 2017., Methods: We used data from the Clinical Practice Research Datalink GOLD and Hospital Episode Statistics in the UK and the Echantillon Généraliste des Bénéficiaire in France to identify patients with COPD each year between 2008 and 2017. We compared patient characteristics, all-cause mortality and COPD exacerbations each year between 2008 and 2017 for patients in the UK and France separately. Health care utilisation and COPD exacerbations in 2017 were compared between France and the UK using t-tests and χ
2 tests., Results: Patients with COPD were similar in gender and comorbidities in both countries. Incidence of COPD exacerbations remained stable in the UK and France between 2007 and 2017. In 2017, the proportion of all-cause and COPD-related hospitalisations was greater in the UK than in France (43.9% vs 32.8% and 8.3% vs 4.9%, respectively; p<0.001) as was the proportion of patients visiting accident and emergency (A&E) (39.8% vs 16.2%, respectively; p<0.001). In addition, the mean length of stay in hospital for COPD-related causes was shorter in the UK than in France (6.2 days (SD 8.4) vs 10.5 days (SD 9.1), respectively; p<0.001)., Discussion: Overall, UK patients were more likely to go to A&E, be hospitalised for COPD-related causes and stay in hospital for fewer days after being admitted for COPD-related reasons compared with patients in France, illustrating a difference in health-seeking behaviours and access to healthcare., Competing Interests: Competing interests: HW reports grants from GSK, AZ and BI, outside the submitted work. JKQ reports grants and personal fees from British Lung Foundation, AZ, Asthma UK, BI, Bayer, GSK, MRC and Chiesi, outside the submitted work. MN, CM-M, MB and FD are employees of PELyon. EVG is the scientific advisor of PELyon. CP received support from AZ, BI, GSK, Chiesi and Novartis to attend medical meetings and fees for conferences., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)- Published
- 2022
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34. Mortality and Respiratory-Related Hospitalizations in Idiopathic Pulmonary Fibrosis Not Treated With Antifibrotics.
- Author
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Cottin V, Spagnolo P, Bonniaud P, Nolin M, Dalon F, Kirchgässler KU, Kamath TV, Van Ganse E, and Belhassen M
- Abstract
Background: Real-world data regarding outcomes of idiopathic pulmonary fibrosis (IPF) are scarce, outside of registries. The claims data from the French National Health System (SNDS) were used to describe outcomes in patients diagnosed with IPF in 2015-2016 but who did not receive antifibrotic therapies. Method: Patients aged <50 years were excluded, as were patients with pulmonary fibrosis other than IPF, patients who had previously received a lung transplant, and those who had received antifibrotic therapies at any time between 2010 and 2016. Patients were followed-up until their last health record, lung transplantation, initiation of antifibrotic therapies, death, or the end of the study period (31 December 2017), whichever occurred first. Results: A total of 5,360 patients (43.2%) not treated with antifibrotic therapies were included. The mean age was 75.5 years, and 57.9% were males. In the year before inclusion, 47.3% of patients had a Charlson score ≥5. During follow-up, 41.2% of patients died. The unadjusted incidence rate was 29.9 per 100 person-years (95%CI = [28.7-31.2]), and the cumulative incidence of death at 3 years was 50.2% (95% CI = [48.3-52.1%]). In the study population, 35.3% of patients experienced an acute respiratory-related hospitalization. The unadjusted incidence rate was 32.1 per 100 person-years (95%CI = [30.6-33.5]) and the cumulative incidence of the event at 3 years was 41.5% (95% CI = [39.7-43.2%]). Interpretation: This observational study showed that, if untreated with antifibrotics, IPF is associated with a 50% all-cause mortality at 3 years. These figures can serve as a historical control of the natural course of the disease., Competing Interests: FD, MN, and MB are full-time employees of PELyon. EVG is the scientific advisor of PELyon. VC reports personal fees and non-financial support from Actelion, Bayer/MSD, and Roche; grants, personal fees, and non-financial support from Boehringer Ingelheim; personal fees from Novartis, Sanofi, Promedior, Celgene, Galapagos, and Galecto, outside the submitted work. PS reports institutional grants, consulting fees, and non-financial support from PPM Services; institutional grants, personal fees, and non-financial support from Roche and Boehringer Ingelheim; personal fees from Chiesi, Galapagos, Lupin, Pieris, and REDX Pharma, outside the submitted work. K-UK is an employee and shareholder of F. Hoffmann-La Roche, Ltd. PB reports personal fees and non-financial support from Roche, Boehringer Ingelheim, Novartis, Sanofi, Chiesi, AstraZeneca, Stallergenes, and GSK, outside the submitted work. TK is a full-time employee at Janssen Pharmaceuticals. The reviewer NB declared a shared affiliation with one of the author PS, to the handling editor at time of review., (Copyright © 2021 Cottin, Spagnolo, Bonniaud, Nolin, Dalon, Kirchgässler, Kamath, Van Ganse and Belhassen.)
- Published
- 2021
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35. [Early Detection and Intervention for Psychosis: Why and How?]
- Author
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Bertulies-Esposito B, Sicotte R, Iyer SN, Delfosse C, Girard N, Nolin M, Villeneuve M, Conus P, and Abdel-Baki A
- Subjects
- Adolescent, Canada, Employment, Humans, Quebec, Psychotic Disorders diagnosis, Psychotic Disorders therapy, Substance-Related Disorders
- Abstract
Objectives This article aims to synthesize the critical stages in the development of early detection and intervention services (EIS) for psychosis over the past 30 years, and to review key literature on the essential components and effectiveness of these programs. Method We conducted a narrative review of the literature on the international development of EIS leading to its endorsement as a service delivery model for young people with first-episode psychosis (FEP). We also reviewed various international and Canadian guidelines to identify consensus about the essential components of EIS for psychosis and their effectiveness. Challenges to the implementation of these different essential components are presented, along with practical solutions to addressing them. A particular emphasis is placed on implementing EIS in the Quebec context. Results Based on a model developed in the early 1990s, EIS for psychosis have now been disseminated worldwide and are deployed on a large scale in some regions, such as the United Kingdom and Quebec. The model's gradual expansion has been facilitated by efforts to identify its main objectives and the components essential to achieve them, and by several studies demonstrating its effectiveness. Along with an important philosophical shift to optimism and hope, EIS have typically focused on the twin aims of reducing treatment delay (or the duration of untreated psychosis) and enhancing engagement in specialized, phase-specific, developmentally appropriate treatment. A meta-analysis (published in 2018) demonstrated the superiority of EIS for psychosis compared to standard treatment on several outcomes including hospitalizations, relapse of symptoms, treatment discontinuation, and vocational and social functioning. Based on these studies and expert consensus, many jurisdictions around the world have developed guidelines to ensure compliance with essential components that are associated with the effectiveness of EIS, while accounting for their contextual realities. The components that have been prioritized include outreach to enable early identification and referral; rapid access to care and youth-friendly services; a range of biopsychosocial interventions (pharmacotherapy, cognitive behavioral therapy, psychoeducation, family interventions, integrated substance use interventions, employment and educational support); a shared-decision making approach; and the intensive case management approach adapted to FEP, which are all delivered by an interdisciplinary team. There is also increasing acknowledgement of the value of continuous evaluation that informs treatment decision-making and quality improvement. Conclusion EIS for psychosis have developed gradually and research has demonstrated its effectiveness. Disseminating the model in ways that ensure fidelity to its core values and the implementation of its essential components is needed to ensure effectiveness; and instill hope for recovery and improve the quality of lives of young people with psychosis and their families.
- Published
- 2021
36. Comparative outcomes in patients receiving pirfenidone or nintedanib for idiopathic pulmonary fibrosis.
- Author
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Belhassen M, Dalon F, Nolin M, and Van Ganse E
- Subjects
- Aged, Aged, 80 and over, Databases, Factual, Disease Progression, Female, France, Health Status, Hospitalization, Humans, Idiopathic Pulmonary Fibrosis diagnosis, Idiopathic Pulmonary Fibrosis mortality, Indoles adverse effects, Male, Middle Aged, Pyridones adverse effects, Respiratory System Agents adverse effects, Risk Assessment, Risk Factors, Time Factors, Treatment Outcome, Idiopathic Pulmonary Fibrosis drug therapy, Indoles therapeutic use, Pyridones therapeutic use, Respiratory System Agents therapeutic use
- Abstract
Background: Real-world data regarding outcomes of idiopathic pulmonary fibrosis (IPF) are scarce, outside of registries. In France, pirfenidone and nintedanib are only reimbursed for documented IPF, with similar reimbursement criteria with respect to disease characteristics, prescription through a dedicated form, and IPF diagnosis established in multidisciplinary discussion., Research Question: The data of the comprehensive French National Health System were used to evaluate outcomes in patients newly treated with pirfenidone or nintedanib in 2015-2016., Study Design and Methods: Patients aged < 50 years or who had pulmonary fibrosis secondary to an identified cause were excluded. All-cause mortality, acute respiratory-related hospitalisations and treatment discontinuations up to 31 December 2017 were compared using a Cox proportional hazards model adjusted for age, sex, year of treatment initiation, time to treatment initiation and proxies of disease severity identified during a pre-treatment period., Results: During the study period, a treatment with pirfenidone or nintedanib was newly initiated in 804 and 509 patients, respectively. No difference was found between groups for age, sex, time to treatment initiation, Charlson comorbidity score, and number of hospitalisations or medical contacts prior to treatment initiation. As compared to pirfenidone, nintedanib was associated with a greater risk of all-cause mortality (hazard ratio [HR], 1.8; 95% confidence interval [CI] 1.3-2.6), a greater risk of acute respiratory-related hospitalisations (HR 1.3; 95% CI 1.0-1.7) and a lower risk of treatment discontinuation at 12 months (HR 0.7; 95% CI 0.6-0.9)., Interpretation: This observational study identified potential differences in outcome under newly prescribed antifibrotic drugs, deserving further explorations.
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- 2021
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37. 10-Year Comparative Follow-up of Familial versus Multifactorial Chylomicronemia Syndromes.
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Belhassen M, Van Ganse E, Nolin M, Bérard M, Bada H, Bruckert E, Krempf M, Rebours V, Valero R, and Moulin P
- Subjects
- Adult, Case-Control Studies, DNA Mutational Analysis, Female, Follow-Up Studies, France epidemiology, Genetic Predisposition to Disease epidemiology, Humans, Hyperlipoproteinemia Type I classification, Hyperlipoproteinemia Type I diagnosis, Male, Middle Aged, Prognosis, Retrospective Studies, Risk Factors, Syndrome, Time Factors, Young Adult, Hyperlipoproteinemia Type I epidemiology, Hyperlipoproteinemia Type I etiology
- Abstract
Context: The relative incidence of acute pancreatitis, ischemic cardiovascular disease, and diabetes in hyperchylomicronemic patients exhibiting familial chylomicronemia syndrome (FCS) or multifactorial chylomicronemia syndrome (MCS) is unknown., Objective: The objective was to study the occurrence of these events in FCS and MCS patients compared with the general population., Methods: Twenty-nine FCS and 124 MCS patients, with genetic diagnosis, in 4 lipid clinics were matched with 413 controls. Individual hospital data linked to the national claims database were collected between 2006 and 2016. The occurrence of complications was retrospectively assessed before follow-up and during a median follow-up time of 9.8 years, for 1500 patient years of follow-up., Results: Patients with FCS were younger than those with MCS (34.3 ± 13.6 vs 45.2 ± 12.6 years, P < 0.01). During the study period, 58.6% of the FCS patients versus 19.4% of the MCS patients had at least 1 episode of acute hypertriglyceridemic pancreatitis (AHP) (hazard ratio [HR] = 3.6; P < 0.01). Conversely, the ischemic risk was lower in FCS than in MCS (HR = 0.3; P = 0.05). The risk of venous thrombosis was similar in both groups. The incidence of diabetes was high in both groups compared with matched controls (odds ratio [OR] = 22.8; P < 0.01 in FCS and OR = 30.3; P < 0.01 in MCS)., Conclusion: The incidence of AHP was much higher in FCS than in MCS patients, whereas the incidence of ischemic cardiovascular events was found to be increased in MCS versus FCS patients and a representative matched control group. Differences in both triglyceride-rich lipoproteins metabolism and comorbidities in MCS versus FCS drive the occurrence of different patterns of complications., (© The Author(s) 2020. Published by Oxford University Press on behalf of the Endocrine Society. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2021
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38. Characteristics of Participants in the American Urological Association Quality (AQUA) Registry and Early Impact of Participation on Quality of Care.
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Shelton JB, Pichardo D, Meeks W, Suh R, Wood EL, Smith N, Nolin M, Ross K, Schlossberg S, Wolf S, Fang R, and Cooperberg MR
- Abstract
Introduction: The American Urological Association Quality Registry (AQUA) is an approved Qualified Clinical Data Repository that was created in 2013 to serve as a platform of quality assessment and improvement. Little is known about how such specialty specific platforms are adopted and used. We describe AQUA participants and report early impact on quality metrics., Methods: We compared characteristics of practices and urologists participating in AQUA from 2014-2017 to those of the broader urologist workforce as reported in the 2017 American Urological Association Census, and examined pass rates of 4 measures reported to the Centers for Medicare and Medicaid Services after participation in AQUA., Results: Participation increased during the first 4 years and included >125 practices and 1,148 urologists (9.2% of practicing U.S. urologists). Of AQUA participants 97.6% were in private practice, 1.9% were in academic practice and the rest (0.5%) were employed by private or public hospitals, compared to 59.1%, 25.5% and 11.2%, respectively, of urologists nationally. Among AQUA participants 95.9% lived in metropolitan areas, compared to 89.9% of urologists nationally. A total of 17 quality measures were reported to the Centers for Medicare and Medicaid Services through AQUA, of which 4 were urology specific and 13 were crosscutting. The average pass rate across the 4 select urological measures was 31.1% prior to AQUA dashboard access and 48.8% after access was gained, a 56.9% improvement (17.1% absolute difference)., Conclusions: Early participants in AQUA were mostly community practitioners. Participation in AQUA seemed to facilitate quality score improvements, although whether this was due to improved measurement vs clinical care is unknown at this time.
- Published
- 2021
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39. Où en sommes-nous? An Overview of Successes and Challenges after 30 Years of Early Intervention Services for Psychosis in Quebec: Où en sommes-nous? Un aperçu des réussites et des problèmes après 30 ans de services d'intervention précoce pour la psychose au Québec.
- Author
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Bertulies-Esposito B, Nolin M, Iyer SN, Malla A, Tibbo P, Otter N, Ferrari M, and Abdel-Baki A
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- Cross-Sectional Studies, Early Diagnosis, Health Care Surveys, Humans, Mental Health, Program Evaluation, Psychotic Disorders psychology, Quality of Health Care, Quebec, Surveys and Questionnaires, Continuity of Patient Care, Early Medical Intervention organization & administration, Health Services Accessibility, Mental Health Services organization & administration, Psychotic Disorders therapy, Time-to-Treatment
- Abstract
Introduction: Over the last 30 years, early intervention services (EIS) for first-episode psychosis (FEP) were gradually implemented in the province of Quebec. Such implementation occurred without provincial standards/guidelines and policy commitment to EIS until 2017. Although the literature highlights essential elements for EIS, studies conducted elsewhere reveal that important EIS components are often missing. No thorough review of Quebec EIS practices has ever been conducted, a gap we sought to address., Methods: Adopting a cross-sectional descriptive study design, an online survey was distributed to 18 EIS that existed in Quebec in 2016 to collect data on clinical, administrative, training, and research variables. Survey responses were compared with existing EIS service delivery recommendations., Results: Half of Quebec's population had access to EIS, with some regions having no programs. Most programs adhered to essential components of EIS. However, divergence from expert recommendations occurred with respect to variables such as open referral processes and patient-clinician ratio. Nonurban EIS encountered additional challenges related to their geography and lower population densities, which impacted their team size/composition and intensity of follow-up., Conclusions: Most Quebec EIS offer adequate services but lack resources and organizational support to adhere to some core components. Recently, the provincial government has created EIS guidelines, invested in the development of new programs and offered implementation support from the National Centre of Excellence in Mental Health. These changes, along with continued mentoring and networking of clinicians and researchers, can help all Quebec EIS to attain and maintain recommended quality standards.
- Published
- 2020
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40. Comparative Safety and Effectiveness of Oral Anticoagulants in Nonvalvular Atrial Fibrillation: The NAXOS Study.
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Van Ganse E, Danchin N, Mahé I, Hanon O, Jacoud F, Nolin M, Dalon F, Lefevre C, Cotté FE, Gollety S, Falissard B, Belhassen M, and Steg PG
- Subjects
- Adult, Aged, Anticoagulants adverse effects, Atrial Fibrillation complications, Dabigatran adverse effects, Dabigatran therapeutic use, Embolism drug therapy, Embolism epidemiology, Factor Xa Inhibitors adverse effects, Factor Xa Inhibitors therapeutic use, Female, Humans, Male, Middle Aged, Rivaroxaban adverse effects, Rivaroxaban therapeutic use, Stroke drug therapy, Stroke epidemiology, Warfarin adverse effects, Warfarin therapeutic use, Anticoagulants therapeutic use, Atrial Fibrillation drug therapy
- Abstract
Background and Purpose: The effects of direct oral anticoagulants in nonvalvular atrial fibrillation should be assessed in actual conditions of use. France has near-universal healthcare coverage with a unified healthcare information system, allowing large population-based analyses. NAXOS (Evaluation of Apixaban in Stroke and Systemic Embolism Prevention in Patients With Nonvalvular Atrial Fibrillation) aimed to compare the safety, effectiveness, and mortality of apixaban with vitamin K antagonists (VKAs), rivaroxaban, and dabigatran, in oral anticoagulant-naive patients with nonvalvular atrial fibrillation., Methods: This was an observational study using French National Health System claims data and including all adults with nonvalvular atrial fibrillation who initiated oral anticoagulant between 2014 and 2016. Outcomes of interest were major bleeding events leading to hospitalization (safety), stroke and systemic thromboembolic events (effectiveness), and all-cause mortality. Four approaches were used for comparative analyses: matching on propensity score (PS; 1:n); as a sensitivity analysis, matching on high-dimensional PS; adjustment on PS; and adjustment on known confounders. For each outcome, cumulative incidence rates accounting for competing risks of death were estimated., Results: Overall, 321 501 patients were analyzed, of whom 35.0%, 27.2%, 31.1%, and 6.6% initiated VKAs, apixaban, rivaroxaban, and dabigatran, respectively. Apixaban was associated with a lower PS-matched risk of major bleeding compared with VKAs (hazard ratio [HR], 0.43 [95% CI, 0.40-0.46]) and rivaroxaban (HR, 0.67 [95% CI, 0.63-0.72]), but not dabigatran (HR, 0.93 [95% CI, 0.81-1.08]). Apixaban was associated with a lower risk of stroke and systemic thromboembolic event compared with VKAs (HR, 0.60 [95% CI, 0.56-0.65]), but not rivaroxaban (HR, 1.05 [95% CI, 0.97-1.15]) or dabigatran (HR, 0.93 [95% CI, 0.78-1.11]). All-cause mortality was lower with apixaban than with VKAs, but not lower than with rivaroxaban or dabigatran., Conclusions: Apixaban was associated with superior safety, effectiveness, and lower mortality than VKAs; with superior safety than rivaroxaban and similar safety to dabigatran; and with similar effectiveness when compared with rivaroxaban or dabigatran. These observational data suggest potentially important differences in outcomes between direct oral anticoagulants, which should be explored in randomized trials.
- Published
- 2020
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41. Characteristics and management of giant cell arteritis in France: a study based on national health insurance claims data.
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Mahr A, Belhassen M, Paccalin M, Devauchelle-Pensec V, Nolin M, Gandon S, Idier I, and Hachulla E
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- Aged, Biopsy methods, Databases, Factual, Female, France epidemiology, Giant Cell Arteritis diagnosis, Giant Cell Arteritis drug therapy, Humans, Incidence, Male, National Health Programs, Retrospective Studies, Temporal Arteries pathology, Antirheumatic Agents therapeutic use, Biopsy statistics & numerical data, Giant Cell Arteritis epidemiology, Methotrexate therapeutic use, Ultrasonography, Doppler statistics & numerical data
- Abstract
Objective: Few data are available on the epidemiology and management of GCA in real life. We aimed to address this situation by using health insurance claims data for France., Methods: This retrospective study used the Echantillon Généraliste de Bénéficiaires (EGB) database, a 1% representative sample of the French national health insurance system. The EGB contains anonymous data on long-term disease status, hospitalizations and reimbursement claims for 752 717 people. Data were collected between 2007 and 2015. The index date was defined as the date of the first occurrence of a GCA code. Demographics, comorbidities, diagnostic tests and therapies were analysed. Annual incidence rates were calculated, and incident and overall GCA cases were studied., Results: We identified 241 patients with GCA. The annual incidence was 7-10/100 000 people ⩾50 years old. Among the 117 patients with incident GCA, 74.4% were females, with mean age 77.6 years and mean follow-up 2.2 years. After the index date, 51.3% underwent temporal artery biopsy and 29.1% high-resolution Doppler ultrasonography. Among the whole cohort, 84.3% used only glucocorticoids. The most-prescribed glucocorticoid-sparing agent was methotrexate (12.0%)., Conclusion: The incidence of GCA in France is 7-10/100 000 people ⩾ 50 years old. Adjunct agents, mainly methotrexate, are given to only a few patients. The use of temporal artery biopsy in only half of the patients might reflect a shift toward the use of imaging techniques to diagnose GCA., (© The Author(s) 2019. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
- Published
- 2020
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42. Epidemiology, treatment patterns and outcomes in patients with coronary or lower extremity artery disease in France.
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Guedeney P, Aboyans V, Dalon F, Oksen D, Belhassen M, Nolin M, Briere JB, Van Ganse E, and Montalescot G
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- Administrative Claims, Healthcare, Adolescent, Adult, Aged, Aged, 80 and over, Cardiovascular Agents adverse effects, Cause of Death, Coronary Artery Disease diagnostic imaging, Coronary Artery Disease mortality, Databases, Factual, Drug Utilization trends, Female, France epidemiology, Hospitalization trends, Humans, Incidence, Male, Middle Aged, Peripheral Arterial Disease diagnostic imaging, Peripheral Arterial Disease mortality, Prevalence, Retrospective Studies, Time Factors, Treatment Outcome, Young Adult, Cardiovascular Agents therapeutic use, Coronary Artery Disease drug therapy, Lower Extremity blood supply, Peripheral Arterial Disease drug therapy, Practice Patterns, Physicians' trends
- Abstract
Background: There is a dearth of updated epidemiological data on the prevalence and annual incidence of coronary artery disease (CAD) and lower extremity artery disease (LEAD) in Western countries., Aims: To describe the incidence and prevalence of CAD and LEAD, associated medication patterns and long-term outcomes in France., Methods: This was a retrospective cohort study using French claims data from a representative sample of the French general population. Any hospitalization or long-term disease status for CAD or LEAD between January 2010 and December 2016 was collected to identify incident cases., Results: Of the 763,338patients screened in the study period, 8559 incident cases of CAD and 4399 of LEAD were identified, with an overall mean follow-up of 2.9±2.0years. The incidence of CAD, LEAD and CAD or LEAD remained stable over the years, and in 2016 were at 33.5 per 10,000person-years, 15.1per 10,000person-years and 42.5 per 10,000person-years, respectively. The prevalence of CAD increased from 3.1% in 2010 to 4.2% in 2016, and LEAD from 1.6% to 2.4%. Most patients received guideline-recommended medication with antithrombotic drugs and lipid-lowering drugs following the index event. However, most of the medications initiated were subsequently discontinued during follow-up. Incident CAD or LEAD was associated with considerable morbidity-particularly an incidence of all-cause hospitalization of 7976.9 per 10,000person-years-and all-cause mortality, with an incidence of 542.8 per 10,000person-years., Conclusion: In recent years, the prevalence of CAD or LEAD has increased progressively, resulting in considerable morbidity and mortality., (Copyright © 2019 Elsevier Masson SAS. All rights reserved.)
- Published
- 2019
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43. Dual versus triple therapy in patients hospitalized for COPD in France: a claims data study.
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Dalon F, Roche N, Belhassen M, Nolin M, Pegliasco H, Deslée G, Housset B, Devillier P, and Van Ganse E
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- Administrative Claims, Healthcare, Adrenal Cortex Hormones adverse effects, Adrenal Cortex Hormones economics, Adrenergic beta-2 Receptor Agonists adverse effects, Adrenergic beta-2 Receptor Agonists economics, Aged, Aged, 80 and over, Bronchodilator Agents adverse effects, Bronchodilator Agents economics, Cost-Benefit Analysis, Databases, Factual, Disease Progression, Drug Costs, Drug Therapy, Combination, Female, France, Health Resources economics, Humans, Lung physiopathology, Male, Middle Aged, Muscarinic Antagonists adverse effects, Muscarinic Antagonists economics, Patient Admission, Pulmonary Disease, Chronic Obstructive diagnosis, Pulmonary Disease, Chronic Obstructive economics, Pulmonary Disease, Chronic Obstructive physiopathology, Time Factors, Treatment Outcome, Adrenal Cortex Hormones therapeutic use, Adrenergic beta-2 Receptor Agonists therapeutic use, Bronchodilator Agents therapeutic use, Lung drug effects, Muscarinic Antagonists therapeutic use, Pulmonary Disease, Chronic Obstructive drug therapy
- Abstract
Purposes: Following a hospitalization for COPD, dual and triple therapies were compared in terms of persistence and relations with outcomes (exacerbations, health care resource use and costs)., Methods: This was a historical observational database study. All patients aged ≥45 hospitalized for COPD between 2007 and 2015 were identified in a 1/97
th random sample of French claims data. Patients receiving dual therapy within 60 days after hospitalization were compared to patients receiving triple therapy, after propensity score matching on disease severity., Results: Of the 3,089 patients hospitalized for COPD, 1,538 (49.8%) received either dual or triple therapy in the 2 months following inclusion, and 1,500 (48.6%) had at least 30 days of follow-up available; 846 (27.4%) received dual therapy, and 654 (21.2%) received triple therapy. After matching, the number of exacerbations was 2.4 per year in the dual vs 2.3 in the triple group ( p =0.45). Among newly treated patients (n=206), persistence at 12 months was similar in the dual and triple groups (48% vs 41%, respectively, p =0.37). As compared to patients on dual therapy, more patients on triple therapy received oral corticosteroids (49.1 vs 40.4%, p =0.003) or were hospitalized for any reason (67% vs 55.8%, p =0.0001) or for COPD (35.3 vs 25.1%, p =0.0002) during follow-up. Cost of care was higher for patients on triple than for those on dual therapy (€11,877.1 vs €9,825.1, p =0.01)., Conclusion: Following hospitalizations for COPD, patients on dual and triple therapy experienced recurrent exacerbations, limited adherence to therapies and high cost of care. Patients on triple therapy appeared more severe than those on dual therapy, as reflected by exacerbations and health care resource use., Competing Interests: EVG is Scientific Advisor of PELyon, he reports personal fees from PELyon, during the conduct of the study; personal fees from PELyon, outside the submitted work. MN, FD and MB (employees of PELyon) conducted the study through sponsorship by Chiesi SAS, and were not paid for manuscript development. NR reports grants and personal fees from Boehringer Ingelheim, Novartis, Pfizer and personal fees from Teva, GSK, AstraZeneca, Mundipharma, Cipla, Sanofi, Sandoz, 3M, Zambon and Chiesi. PD has received consulting fees, honoraria for lectures and/or research funding from AstraZeneca, Boehringer Ingelheim, Chiesi, GlaxoSmithKline, and Novartis during the last 3 years. He reports personal fees from Chiesi, during the conduct of the study; personal fees from Astra Zeneca, personal fees from Boehringer Ingelheim, personal fees from Chiesi, personal fees from GlaxoSmithKline, personal fees from Novartis, personal fees from Sanofi, outside the submitted work. BH received honorarium from Boehringer Ingelheim, Pfizer, Novartis, Teva, GSK, AstraZeneca and Chiesi for his participation in scientific committees or conferences. He reports personal fees from Chiesi, during the conduct of the study; personal fees from GSK, personal fees from Boehringer Ingelheim, personal fees from Novartis, outside the submitted work. HP received honorarium from Boehringer Ingelheim, Novartis, Teva, GSK, AstraZeneca and Chiesi for his participation in scientific committees or conferences, is on the board for Chiesi and Novartis, and received an invitation to 2019 American Thoracic Society International Conference in Arizona, USA. GD received research funding from BTG/PneumRx and received honorarium from Boehringer Ingelheim, AstraZeneca, Chiesi, Novartis, BTG/PneumRx for his participation in scientific committees or conferences. He reports personal fees from Chiesi, during the conduct of the study; personal fees from AstraZeneca, personal fees from Boehringer Ingelheim, personal fees from BTG/PneumRx, and personal fees from Nuvaira, outside the submitted work. The authors report no other conflicts of interest in this work., (© 2019 Dalon et al.)- Published
- 2019
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44. Changes in Persistent Asthma Care and Outcomes From 2006 to 2016 in France.
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Belhassen M, Nolin M, Nibber A, Ginoux M, Devouassoux G, and Van Ganse E
- Subjects
- Adolescent, Adrenal Cortex Hormones therapeutic use, Adrenergic beta-Agonists therapeutic use, Adult, Female, France epidemiology, Hospitalization, Humans, Leukotriene Antagonists therapeutic use, Male, Omalizumab therapeutic use, Patient Acceptance of Health Care, Treatment Outcome, Young Adult, Anti-Asthmatic Agents therapeutic use, Asthma drug therapy
- Abstract
Background: Changes in asthma care need to be documented at arrival of biotherapies., Objectives: To characterize changes in asthma care and outcomes in patients with persistent asthma., Methods: Repeated transversal analyses were conducted on a historical cohort using the French national claims data over 10 years. Patients aged 18 to 40 years with either 1 or more (any-use population) or 4 or more (high-use population) yearly dispensings of controller therapy were selected. Clinical and demographic features were characterized, and comparisons were made between 2006 and 2016 to assess temporal changes in asthma therapy, health care resource utilization, and outcomes., Results: In 2016, prevalent use of controller therapy was 5.2% (any-use population) and 0.8% (high-use population) of the population aged 18 to 40 years. In the any-use population, the use of long-acting β
2 -agonists in monotherapy, and inhaled corticosteroids decreased (1.7% and 40.3% in 2016, respectively), whereas the use of fixed-dose combinations increased (56.4%). In both populations, visits to respiratory or hospital physicians and pulmonary function testing increased with time, in parallel to a decreasing number of general practitioner visits; in addition, oral corticosteroid use and incidence of emergency room visits increased. However, asthma hospitalizations and mortality remained low in both populations., Conclusions: Changes in persistent asthma care included replacement of inhaled corticosteroids by fixed-dose combinations, decreased use of long-acting β2 -agonists as a monotherapy, and increased involvement of secondary care physicians. In parallel, despite low figures for hospital admissions and mortality, overall use of oral corticosteroids and incidence of emergency room visits have increased over the last decade., (Copyright © 2019 The Authors. Published by Elsevier Inc. All rights reserved.)- Published
- 2019
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45. Incidentaloma Discoveries in the Course of Neuroimaging Research.
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Stip E, Miron JP, Nolin M, Letourneau G, Bernazzani O, Chamelian L, Boileau B, Gupta M, Luck D, and Lungu O
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- Humans, Magnetic Resonance Imaging methods, Neuroimaging, Brain Diseases epidemiology, Incidental Findings
- Abstract
ABSTRACTAmong healthy volunteers in psychiatric brain functional magnetic resonance imaging (fMRI) research studies, the prevalence of incidentalomas can be as high as 34%, of which 10% show clinical significance. An incidentaloma is a lesion found by coincidence without clinical symptoms or suspicion. Like lesions and other types of accidental findings, it is found in healthy individuals recruited to take part in psychiatric studies. The prevalence of these accidental findings among specific psychiatric populations remains unknown. However, a precise understanding of cerebral neuroanatomy, neuroradiological expertise, and an appropriate choice of fMRI exploration sequences will increase the sensitivity of identifying these accidental findings and enable researchers to address their clinical relevance and nature. We present recommendations on how to appropriately inform patients or participants of the accidental findings. Additionally, we propose specific suggestions pertaining to the clinical research setting aimed for investigators and psychiatrists. Unlike current articles pertaining to incidentaloma, the current report provides a distinct focus on psychiatric issues and specific recommendations for studies involving psychiatric patients.
- Published
- 2019
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46. Asthma exacerbations and socio-economic status in French adults with persistent asthma: A prospective cohort study.
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Mazalovic K, Jacoud F, Dima AL, Van Ganse E, Nolin M, C D, and Zaba C
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- Adolescent, Adult, Anti-Asthmatic Agents administration & dosage, Asthma epidemiology, Body Mass Index, Comorbidity, Emergency Service, Hospital statistics & numerical data, Female, France, General Practice statistics & numerical data, Humans, Hypersensitivity, Immediate epidemiology, Male, Medical Assistance statistics & numerical data, Prospective Studies, Severity of Illness Index, Young Adult, Anti-Asthmatic Agents therapeutic use, Asthma drug therapy, Asthma physiopathology, Socioeconomic Factors
- Abstract
Introduction: Adults disadvantaged by poor socio-economic status (SES) are more severely affected by asthma compared to those with better SES. We aimed to determine whether the frequency of asthma exacerbations (AEx), as well as aspects related to AEx management, differed based on SES in patients treated with daily treatments., Methods: This study, part of the prospective observational cohort ASTRO-LAB, included French adult patients with persistent asthma. Patients were considered as low SES if they benefited from publicly funded special health insurance and/or were perceived as low SES by their general practitioner. AEx was defined as at least one of the following: asthma-related oral corticosteroid course, medical contact, hospitalization, and death. We examined associations between SES and AEx frequency, perceived triggering factors and type of medical contact after AEx., Results: In our sample of 255 patients, 11.40% were considered as low SES. Patients with low SES did not report significantly more AEx than medium/high SES patients during one-year follow-up (0.79 versus 0.55, p = 0.38). The type of medical contact during AEx differed significantly between the two groups (p = 0.03): patients with medium/high SES consulted their general practitioner more frequently (OR = 2.23, 95% CI = 0.91-5.50, p = 0.08) and were less likely to visit an emergency department or be hospitalized (OR = 0.27, 95% CI = 0.09-0.84, p = 0.02)., Conclusions: AEx frequency did not differ significantly between low and medium/high SES patients, but differences were found in the management of AEx. Studies are needed to better understand the relation between precariousness and management of asthma.
- Published
- 2018
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47. Anti-Müllerian hormone as a biomarker for acute testicular degeneration caused by toxic insults to stallion testes.
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Pozor M, Conley AJ, Roser JF, Nolin M, Zambrano GL, Runyon SP, Kelleman AA, and Macpherson ML
- Subjects
- Animals, Biomarkers blood, Horse Diseases metabolism, Horses, Immunochemistry, Infertility, Male metabolism, Infertility, Male pathology, Infertility, Male veterinary, Male, Testicular Diseases metabolism, Testicular Diseases pathology, Testicular Diseases veterinary, Testis pathology, Anti-Mullerian Hormone blood, Horse Diseases pathology
- Abstract
Recently, anti-Müllerian hormone (AMH) was validated as a reliable marker of testicular damage caused by various chemotherapy drugs in humans and in mice. In horses, the reference values of AMH concentrations in normal stallions, during different seasons of a year, have been recently reported. However, this hormone was not evaluated in subfertile or infertile stallions with testicular damage. Therefore, the objective of this study was to investigate the effects of experimentally induced testicular degeneration on the concentration of AMH in stallions. Severe but transient testicular degeneration was induced in six Miniature horse stallions, in two, separate experiments (three stallions in each experiment), by the administration of a single dose of the contraceptive compound RTI-4587-073(l). Six different stallions served as controls (three stallions in each experiment). Treated and control stallions were switched between the experiments. Concentrations of AMH were determined in 78 samples of blood plasma collected during the first experiment and in 24 samples collected during the second experiment. Furthermore, the expression of AMH in 30 samples of testicular parenchyma, collected from these stallions during the second experiment, was also evaluated, using immunohistochemistry (IHC) and objectively analyzed using computerized methods. During the first experiment, the concentrations of AMH in blood increased significantly in treated stallions (P < 0.05), reaching a 62-151% change from the baseline by day 10 after treatment, before gradually decreasing to the pretreatment levels. There was no change in blood AMH concentration in control stallions. Only a trend to increase AMH concentration was observed in treated stallions during the second experiment (P = 0.055). The labeling for immunoreactive AMH in the Sertoli cells gradually increased after treatment, which was confirmed by the significantly increased IHC optic density score value (P < 0.05) and significantly decreased percentage contribution of negative pixels at fourth week after treatment (P < 0.05). We concluded that AMH is a promising candidate as a biomarker of testicular damage in stallions caused by toxic insults that lead to testicular degeneration., (Copyright © 2018 Elsevier Inc. All rights reserved.)
- Published
- 2018
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48. Examination of toxicity and collagen linearity after the administration of the protein cross-linker genipin in equine tendon and dermis: a pilot study.
- Author
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Bellefeuille M, Peters DF, Nolin M, Slusarewicz P, and Telgenhoff D
- Subjects
- Animals, Dermis pathology, Horses injuries, Injections, Intradermal veterinary, Lameness, Animal chemically induced, Male, Pilot Projects, Tendon Injuries drug therapy, Tendon Injuries veterinary, Wound Healing, Collagen drug effects, Dermis drug effects, Iridoids metabolism, Iridoids toxicity, Tendons drug effects
- Abstract
Objective: Collagen cross-linking is an attractive therapeutic route aimed at supplementing natural collagen stabilisation. In this study the toxicity of the cross-linker genipin (GP) was examined in avascular (tendon) and vascular (dermis) tissue., Methods: High doses of GP were injected intratendinously into three yearling horses and evaluated at various time points up to 30 days. A second group of three yearlings were injected into the dermis and evaluated at various time points up to 1 year. Metrics used included lameness, circumferential swelling, ultrasound evaluation, microscopic morphology, collagen production and systemic effect on blood parameters., Results: The tendon injection sites exhibited mild lameness and swelling with no apparent systemic toxicity or stabilisation defects. Treated tendons exhibited increased linear collagen microscopically. Dermal injections showed similar results, with mild swelling at the injection site. Microscopic morphology resulted in a decrease in dermal collagen at 30 days post-injection. Dermis injected at the high dose of 355 mmol/L examined 1 year post-treatment appeared similar to the untreated biopsies; however, there was an increase in mature collagen., Conclusion: GP injection appeared to be well tolerated, with transient lameness and mild circumferential swelling when injected into the tendon and local tissue swelling when injected into the dermis. No systemic hypersensitivities or toxicities were observed. Microscopically, GP resulted in increased linear collagen in tendons at 30 days post-injection and overall increased collagen in dermal tissue when evaluated 1 year post-injection., (© 2017 Australian Veterinary Association.)
- Published
- 2017
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49. Early Intervention for Psychosis in Canada: What Is the State of Affairs?
- Author
-
Nolin M, Malla A, Tibbo P, Norman R, and Abdel-Baki A
- Subjects
- Canada, Cross-Sectional Studies, Early Medical Intervention standards, Early Medical Intervention statistics & numerical data, Health Care Surveys, Humans, Early Medical Intervention organization & administration, Mental Health Services organization & administration, Mental Health Services standards, Mental Health Services statistics & numerical data, Psychotic Disorders therapy, Schizophrenia therapy
- Abstract
Objective: Early intervention services (EIS) for psychosis have been developed in several countries, including Canada. There is some agreement about the program elements considered essential for improving the long-term outcomes for patients in the early phase of psychotic disorders. In the absence of national standards, the current state of EIS for psychosis in Canada needs to be examined in relation to expert recommendations currently available., Method: A detailed online benchmark survey was developed and administered to 11 Canadian academic EIS programs covering administrative, clinical, education, and research domains. In addition, an electronic database and Internet search was conducted to find existing guidelines for EIS. Survey results were then compared with the existing expert recommendations., Results: Most of the surveyed programs offer similar services, in line with published expert recommendations (i.e., easy and rapid access, intensive follow-up through case management with emphasis on patient engagement and continuity of care, and a range of integrated evidence-based psychosocial interventions). However, differences are observed among programs in admission and discharge criteria, services for patients at ultra high risk (UHR) for psychosis, patient to clinician ratios, accessibility of services, and existence of specific inpatient units. These seem to diverge from expert recommendations., Conclusions: Although Canadian programs are following most expert recommendations on clinical components of care, some programs lack administrative and organizational elements considered essential. Continued mentoring and networking of clinicians through organizations such as the Canadian Consortium for Early Intervention in Psychosis (CCEIP), as well as the development of a fidelity scale through further research, could possibly help programs attain and maintain the best standards of early intervention. However, simply making clinical guidelines available to care providers is not sufficient for changing practices; this will need to be accompanied by adequate funding and support from organizations and policy makers., (© The Author(s) 2016.)
- Published
- 2016
- Full Text
- View/download PDF
50. [Absolute isolation of the severely burned].
- Author
-
Nolin M and Petrelli P
- Subjects
- Humans, Burns nursing, Patient Isolation
- Published
- 1995
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