Vesalius, also a rheumatologist? [2]

SCOPUS: le.jinfo:eu-repo/semantics/publishe

Diagnostic qualité de l'unité de stérilisation du centre hospitalier Le Vinatier en vue d'une certification ISO 13485

LYON1-BU Santé (693882101) / SudocSudocFranceF

How and When Does Outcrossing Occur in the Predominantly Selfing Species Medicago truncatula?

International audienceEmpirical studies on natural populations of Medicago truncatula revealed selfing rates higher than 80%, but never up to 100%. Similarly, several studies of predominantly selfing species show variability in the level of residual outcrossing between populations and also between temporal samples of the same population. However, these studies measure global selfing rates at the scale of the population and we do not know whether there is intra-population variation and how outcrossing events are distributed, between genotypes, plants, flowers, or seeds. Theoretical studies predict the maintenance of residual outcrossing in highly selfing species due to environmental (e.g., pollen biology) and/or genetic determinants and decompositions of the variation in outcrossing rate using experimental data can be very informative to test these hypotheses. Here, we focus on one natural population of M. truncatula in order to describe precisely its mating system. In particular, we investigated the determinants of the selfing rate by testing for seasonal variations (environmental determinism) and variations between genotypes (genetic determinism). We measured selfing rates in maternal progenies from plants collected widely across a natural population. For each plant, we collected pods from flowers produced at the beginning and at the end of the flowering season to test for a seasonal variation in the outcrossing rate. For each collected offspring, we also estimated the likelihood that it was issued from a self-fertilization event and assessed the genetic component of variation of this mating system measure. We found a significant, albeit small, increase in outcrossing rate in progenies collected at the end [t(m) = 0.137 (SD = 0.025)] compared to those collected at the beginning [t(m) = 0.083 (0.016)] of the flowering season. A significant between genotypes variation in selfing rate was also detected, resulting in a heritability of 9% for the rate of residual outcrossing. Altogether, our work shows that despite a predominantly selfing reproductive mode, M. truncatula displays variation in residual outcrossing rate, and that this trait is likely under a complex determinism combining environmental and genetic factors. We discuss the evolutionary implications of our results for the population

Successful treatment of SAPHO syndrome with ibandronate

SCOPUS: le.jinfo:eu-repo/semantics/publishe

Women Are Underrepresented Among Authors of Retracted Publications: Retrospective Study of 134 Medical Journals

We examined the gender distribution of authors of retracted articles in 134 medical journals across 10 disciplines, compared it with the gender distribution of authors of all published articles, and found that women were underrepresented among authors of retracted articles, and, in particular, of articles retracted for misconduct

Le service de rhumatologie et de médecine physique

info:eu-repo/semantics/publishe

Systemic lupus erythematosus with optical neuromyelitis (Devic's syndrome): A case with a 35-year follow-up

Optical neuromyelitis or Devic's syndrome is a very uncommon neurological manifestation of systemic lupus erythematosus. It is also associated with antiphospholipid antibodies, limited responsiveness to glucocorticoid treatment and a poor prognosis. We report the case of a female systemic lupus erythematosus patient who developed recurrent flares of optical neuritis and transverse myelitis. These flares consistently responded to glucocorticoid therapy. Despite the absence of overt anticardiolipin antibodies in the course of the disease, long-term anticoagulant therapy has been introduced with positive results. Treatments are usually of limited efficacy in Devic's syndrome. In our patient, however, aggressive glucocorticoid treatment resulted in prolonged survival.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Assessment of sarcopenia in patients with fibromyalgia

Fibromyalgia is a chronic disorder characterized by persistent widespread musculoskeletal pain. Patients with fibromyalgia have reduced physical activity and increased sedentary rate. The age-associated reduction of skeletal muscle mass and function is called sarcopenia. The European Working Group on Sarcopenia in Older People developed a practical clinical definition and consensus diagnostic criteria for sarcopenia. Loss of muscle function is common in fibromyalgia and in the elderly. The goal of this study is to determine whether the reduction of muscle function in fibromyalgia is related to sarcopenia according to the European Working Group on Sarcopenia in Older People criteria. Forty-five patients with fibromyalgia and thirty-nine healthy control female subjects were included. All the participants were assessed by Fibromyalgia Impact Questionnaire and SARC-F questionnaire. Muscle mass was evaluated by bioimpedance analysis, muscle strength by handgrip strength test and physical performance with the Short Physical Performance Battery. Fibromyalgia Impact Questionnaire and SARC-F scores were statistically significantly higher in the fibromyalgia group than in the control group, showing severe disease and a higher risk of sarcopenia in the fibromyalgia group (p < 0.001). Muscle strength and physical performance were statistically significantly lower in the group with fibromyalgia than in the control group (p < 0.001). There was no statistical difference between fibromyalgia and control groups regarding skeletal muscle mass (p = 0.263). Our study demonstrated a significant reduction in muscle function in fibromyalgia patients without any loss of muscle mass. Loss of muscle function without decrease in muscle mass is called dynapenia.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Place des nouveaux critères de classification des spondyloarthrites en pratique clinique

"Spondyloarthritis" consists of a group of several diseases sharing clinical, radiological and genetic similarities. Ankylosing spondylitis is the main representative of this group and is characterized by a predominant axial involvement. The presence of radiographic sacroiliitis is essential for the diagnosis of ankylosing spondylitis according to the modified New York criteria. Because the occurence of radiographic sacroiliitis takes 8 to 11 years, the diagnosis of spondyloarthritis is often delayed. Magnetic resonance imaging can depict sacroiliac joint inflammation before the appearance of radiographic damage thereby defining the concept of "non-radiographic axial spondylo-arthritis". This entity was defined by the axial spondyloarthritis classification criteria published by the Assessment of SpondyloArthritis international Society (ASAS). Some factors, such as elevated levels of C-reactive protein at baseline, have been identified as predictors of radiographic sacroiliitis progression, leading to a definite diagnosis of ankylosing spondylitis. These two entities show similar clinical expression (clinical features and activity levels), suggesting continuity between the two diseases. Non-radiographic forms most often affect women and patients with recent symptoms, and are therefore considered as a pre-radiographic status. If the use of magnetic resonance imaging is necessary for the identification of non-radiographic axial spondyloarthritis according to the ASAS criteria, the presumptive diagnosis is mainly based on complaints of inflammatory back pain. The presence of other typical clinical features, such as HLA B27 positivity and/or radiographic sacroiliitis increases the diagnostic probability and indicates the need for referral to a specialist.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Cutaneous necrotizing vasculitis after low dose methotrexate therapy for rheumatoid arthritis: A possible manifestation of methotrexate hypersensitivity

SCOPUS: ar.jinfo:eu-repo/semantics/publishe