Publications by authors named "Jean-Pierre Aubert"

Regular physical activity should benefit HIV-positive transgender women because they are a particularly vulnerable population. However, engaging in physical activity seems particularly difficult among this population. To inform the development of interventions to increase adherence to physical activity, we explored perceptions of physical activity in 10 semi-structured interviews with HIV-positive transgender women.

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Background: There is a paucity of epidemiological data on asthma classified by disease severity in France. The ASTHMAPOP cross-sectional study aimed to review the prevalence and current management of asthma in people aged ≥18 years in France.

Methods: A self-administered questionnaire was mailed to 19 676 people representative of the French population in age, gender, region, and socio-economic status.

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Objectives: To describe the implementation and use of a computerized decision support system (CDSS) for antibiotic prescription in primary care in France (Antibioclic). The CDSS targets 37 infectious diseases and has been freely available on a website since 2011.

Methods: Description and implementation of the architecture of a CDSS for antibiotic prescription in general practice.

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Following publication of the original article [1], the authors reported an error to one of the 'study groups' in the authorship section.

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Introduction: Direct oral anticoagulants (DOACs) have shown noninferiority to vitamin K antagonists (VKA) in stroke prevention in patients with atrial fibrillation. DOAC treatment may be less demanding than VKA, improving quality of life. To date, there have been no studies of the real-life experience of outpatients receiving anticoagulation therapy for atrial fibrillation in France.

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Background: Many people in Europe remain undiagnosed for human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV).

Objectives: To evaluate acceptability and effectiveness of a questionnaire designed to facilitate identification of risk factors for these viruses.

Methods: We performed an observational study, in a prospectively enrolled cohort of patients in Paris (France) seen in 2014.

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Introduction: Direct oral anticoagulants (DOACs) have shown non-inferiority and ease of use compared to vitamin K antagonists (VKA) in the treatment of venous thromboembolism (VTE). No study so far has been directed toward real-life experience of outpatients receiving anticoagulants for VTE in France.

Methods: This is an observational descriptive real-life epidemiological study, using three validated questionnaires (Morisky Medication Adherence Scale-8, EQ-5D, and part 2 of the Perception of Anticoagulant Treatment Questionnaire), to assess adherence, quality of life, and satisfaction in 100 VTE outpatients receiving anticoagulation therapy by VKA (primary or switched from DOAC to VKA) or by DOAC (primary or switched from VKA to DOAC).

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Background: Anal disorders are largely underestimated in general practice. Studies have shown patients conceal anal symptoms leading to late diagnosis and treatment. Management by general practitioners is poorly described.

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Objectives: The objective of this sub-study was to assess the use of colchicine for the treatment of gout flares in real life conditions in the GOSPEL cohort following the 2006 EULAR recommendations for gout management.

Methods: This national cross-sectional epidemiologic survey included outpatients with gout suffering from acute flare followed by randomly selected primary care physicians (n=398) and private practice rheumatologists (n=109) between October 2008 and September 2009 in France. Data regarding patient characteristics and treatment prescription was collected by each physician.

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Objective: To document the initial management of hypothyroidism in France with respect to diagnostic setting, investigations, and therapeutic approach.

Design: Observational study of the management by primary care practitioners (PCPs) and endocrinologists of patients diagnosed with, and treated for, hypothyroidism during the enrollment period or the previous 6 months.

Methods: A representative sample of PCPs and endocrinologists enrolled up to five consecutive patients and reported sociodemographic, clinical, therapeutic, and laboratory data.

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A simulation exercise aimed at assessing the management and provision of ambulatory care in the context of a highly pathogenic influenza pandemic was conducted in a specifically dedicated consultation center (Centre de Consultation Dédié (CCD) à la grippe) based on official French guidelines. The exercise was carried out in a school in Paris equipped to simulate a "flu clinic". 3 practitioners provided treatment lasting 2 hours to nursing students acting as patients.

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The French Pandemic Influenza Plan ("Plan National de Prévention et de Lutte Pandémie Grippale") places general practitioners at the heart of the provision of care to patients through consultations and house calls. The purpose of this study was to determine whether GP practices are able to provide treatment to flu patients within their premises in the event of a highly pathogenic influenza pandemic. A simulation exercise conducted in a GP practice (SIMUGRIP-MG2) was carried out in the autumn of 2009.

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Objectives: To assess diagnoses and management of acute and chronic gout in primary care and rheumatology settings relative to 2006 European League Against Rheumatism (EULAR) gout recommendations. Secondary objectives were to describe patient demographics, clinical features, lifestyle modifications, and short- and mid-term outcomes.

Methods: Prospective, cross-sectional, descriptive survey of patients with chronic gout, acute gout, or suspected gout, included by randomly selected general practitioners (GPs, n = 398) and rheumatologists (n = 109) between October 2008 and September 2009, in France.

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Context: French interns in general practice are, like all medical students, exposed to medical errors during their training.

Objective: To measure the professional and personal impact of medical errors on French general practitioner (GP) trainees.

Design, Setting And Participants: Quantitative and qualitative study of medical errors and GP trainees enrolled at Paris Diderot University.

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Context: In 2004, 22% of French citizen were vaccinated against Hepatitis B Virus (HBV), 7.3% had previously been protected by a contact with HBV, and 0.65% were carriers of HBV Those rates are not known among migrant people, especially if they have no health insurance.

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Context: In France, 43% to 63% of diabetics have an annual fundoscopy. Do the new screening tools, coupled with teletransmission of the images, allow for satisfying ophthalmological screening? It is an important matter given the foreseeable reduction in the number of French ophthalmologists in the forthcoming years.

Objectives: To measure the quality of screening for diabetic retinopathy (DR), in the framework of a network, by the provision of a retinograph by numeric camera (with teletransmission of the images and centralised interpretation), in a screening centre located in town.

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The human gene MUC4 encodes a large transmembrane mucin that is developmentally regulated and expressed along the undifferentiated pseudostratified epithelium, as early as 6.5 weeks during fetal development. Immunohistochemical analysis of Muc4 expression in developing mouse lung and gastrointestinal tract showed a different spatio-temporal pattern of expression before and after cytodifferentiation.

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Aim: To investigate the expression of the four secreted gel-forming mucins (MUC2, MUC5AC, MUC5B and MUC6) in a series of gastric carcinomas, classified according Lauren's, Mulligan's, WHO and Goseki's classifications, with special attention to all the different components (major and minor) present in tumors and to follow up clinical data.

Methods: Expression of MUC2, MUC5AC, MUC5B and MUC6 was investigated using immunohistochemistry and in situ hybridization.

Results: Expression of secreted gel-forming mucins in gastric carcinoma was particularly complex, each mucin being not restricted to any histopathological type even considering all components (major and minor) present in a given tumor.

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A deregulation of several MUC genes (MUC1, MUC2, MUC3, MUC5AC, and MUC6) was previously demonstrated in breast carcinomas. Considering that recently we found the "non-mammary" MUC5B mRNA in primary breast tumors (Berois et al. 2003), we undertook the present study to evaluate the expression profile of MUC5B protein product in breast tissues, using LUM5B-2 antisera raised against sequences within the non-glycosylated regions of this apomucin.

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The transmembrane mucin, MUC4, is aberrantly expressed with a high incidence in human pancreatic adenocarcinomas and plays an important role in the pathogenesis of the disease. Our recent studies have shown that interferon-gamma (IFNgamma) and retinoic acid (RA) are important regulators of MUC4 in pancreatic tumour cells. Induction of MUC4 by IFNgamma occurs via a novel pathway involving upregulation of the signal transducer and activator of transcription 1 (STAT-1), whereas its stimulation by RA requires mediation by the transforming growth factor beta-2 (TGFbeta-2).

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The human transmembrane mucin MUC4 is aberrantly expressed in 75% of pancreatic ductal adenocarcinomas, whereas no expression is found in normal pancreas. Therefore MUC4 appears as a useful biological marker for the diagnosis of ductal adenocarcinomas. Since rat Muc4 was shown to interact with ErbB-2 tyrosine kinase receptor and to either promote cell survival and differentiation or cell proliferation, it is postulated that MUC4 may also participate in pancreatic carcinogenesis.

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Mucins are macromolecules lying the cells in contact with external environment and protect the epithelium against constant attacks such as digestive fluids, microorganisms, pollutants, and toxins. Mucins are the main components of mucus and are synthesized and secreted by specialized cells of the epithelium (goblet cells, cells of mucous glands) or non mucin-secreting cells. Human mucin genes show common features: large size of their mRNAs, large nucleotide tandem repeat domains, complex expression both at tissular and cellular level.

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MUC4: encodes a large transmembrane mucin that is overexpressed in pancreatic adenocarcinomas. The molecular mechanisms responsible for that altered pattern of expression are unknown. TGF-beta, a pleiotropic cytokine, regulates numerous genes involved in pancreatic carcinogenesis via activation of the Smads proteins and MUC4 promoter is rich in Smad-binding elements.

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Using genomic cosmid and BAC clones and genome shotgun supercontigs available in GenBank, we determined the complete gene structure of the four mouse secreted gel-forming mucin genes Muc2, Muc5ac, Muc5b and Muc6 and the organization of the genomic locus harboring these genes. The mouse secreted gel-forming mucin gene is 215 kb on distal chromosome 7 to 69.0 cM from the centromere and organized as: Muc6-Muc2-Muc5ac-Muc5b with Muc2, Muc5ac and Muc5b arranged in the same orientation and Muc6 in opposite.

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