206 research outputs found

    Lully – Château de Buffavent

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    Le château de Buffavent est situé au bord d’une grande terrasse naturelle qui se développe au pied du village actuel. Les travaux entrepris par les nouveaux propriétaires impactent la structure architecturale du château et le modifient en profondeur. Une opération archéologique préventive a été prescrite dans l’objectif d’étudier les maçonneries menacées et celles mises à nu afin de préciser la chronologie relative du site proposée par Avril Mauveaux (Hadès) dans le cadre d’une étude préalabl..

    Feurs – Le Coliséum

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    La fouille archéologique réalisée au 22 rue Gambetta a porté sur l’ancien emplacement du parking du bâtiment de la Poste, construit vers 1970. Préalablement à la construction de ce bâtiment, la parcelle avait fait l’objet de sondages archéologiques par la réalisation de tranchées perpendiculaires les unes aux autres. Les maçonneries mises au jour correspondent, pour l’essentiel, à l’angle nord-est de la basilique du forum et d’un espace construit en ressaut sur son côté septentrional (exèdre..

    Phosphorylation of specific sets of tau isoforms reflects different neurofibrillary degeneration processes

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    AbstractTau proteins are the basic components of filaments that accumulate within neurons during neurofibrillary degeneration, a degenerating process with disease-specific phenotypes. This specificity is likely to be sustained by both phosphorylation state and isoform content of tau aggregates that form neuronal inclusions. In the present study, characterization of tau isoforms involved in neurofibrillary degeneration in Alzheimer's disease, Pick's disease, corticobasal degeneration and progressive supra-nuclear palsy was performed. Both analyses by immunoblotting using specific tau antibodies and cell transfection by tau isoform cDNAs allowed us to demonstrate the aggregation of (1) the six hyperphosphorylated tau isoforms in Alzheimer's disease, (2) tau isoforms without exon 10-encoding sequence in Pick's disease and (3) hyperphosphorylated exon 10-tau isoforms in corticobasal degeneration and progressive supranuclear palsy. Thus, neurofibrillary degeneration phenotypes are likely to be related to the phosphorylation of different combinations of tau isoforms (with and/or without exon 10-encoding sequence) in subpopulations of neurons

    Comparison of residual stresses on long rolled profiles measured by X-ray diffraction,ring core and the sectioning methods and simulated by FE method

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    Sheet piles are produced by hot rolling, a cooling step and, if required, by a straightening operation. Numerical simulations indicate that the stress field is almost homogeneous through the thickness, justifying the comparison of X-ray diffraction, ring core and the sectioning methods applied after the cooling step and after the straightening process. The equipment, the steps of the experimental procedures and the results are detailed, showing the limits, the specificities and the advantages of each method. Moreover, the amplitude and the distribution of the stresses along the width of the sections present good agreement with results of numerical simulations

    Impact of comprehensive geriatric assessment on survival, function, and nutritional status in elderly patients with head and neck cancer: protocol for a multicentre randomised controlled trial (EGeSOR)

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    BACKGROUND: Survival is poorer in elderly patients with head and neck squamous cell carcinomas [HNSCCs] than in younger patients. Possible explanations include a contribution of co-morbidities to mortality, frequent refusal of standard therapy, and the use of suboptimal treatments due to concern about toxicities. The Comprehensive Geriatric Assessment [CGA] is a multidimensional assessment of general health that can help to customise treatment and follow-up plans. The CGA has been proven effective in several health settings but has not been evaluated in randomised studies of patients with cancer. Our aim here was to assess the impact of the CGA on overall survival, function, and nutritional status of elderly patients with HNSCC. METHODS/DESIGN: EGeSOR is an open-label, multicentre, randomised, controlled, parallel-group trial in patients aged 70 years or older and receiving standard care for HNSCC. The intervention includes four components: the CGA conducted by a geriatrician before cancer treatment, participation of the same geriatrician in cancer treatment selection, a standardised geriatric therapeutic intervention designed by the same geriatrician; and geriatric follow-up for 24 months. The primary endpoint, assessed after 6 months, is a composite criterion including death, functional impairment [Activities of Daily Living score decrease ≥2], and weight loss ≥10%. Secondary endpoints include progression-free survival, unscheduled admissions, quality of life, treatment toxicities, costs, and completion of the planned cancer treatment. A centralised online system is used to perform 1:1 randomisation with a minimisation algorithm for centre, age, T and N stages, and tumour site [oral, oropharyngeal, hypopharyngeal, or laryngeal]. The estimated sample size is 704 patients, who are being recruited by 14 centres in 9 French cities. DISCUSSION: EGeSOR is the first randomised trial of the CGA in elderly cancer patients. We expect the CGA to have direct clinical benefits on the management of elderly patients with HNSCC. If this expectation is fulfilled, the trial may lead to modifications of the management model for elderly patients with cancer. TRIAL REGISTRATION: Trial registration: NCT0202506

    Altered splicing of Tau in DM1 is different from the foetal splicing process

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    AbstractAmong the different mechanisms underlying the etiopathogenesis of myotonic dystrophy type 1 (DM1), a backward reprogramming to a foetal splicing machinery is an interesting hypothesis. To address this possibility, Tau splicing, which is regulated during development and modified in DM1, was analyzed. Indeed, a preferential expression of the foetal Tau isoform, instead of the six normally found, is observed in adult DM1 brains. By using two cell lines, we show here that the cis-regulating elements necessary to generate the unique foetal Tau isoform are dispensable to reproduce the trans-dominant effect induced by DM1 mutation on Tau exon 2 inclusion. Our results suggest that the mis-splicing of Tau in DM1 is resulting from a disease-associated mechanism

    Targeted Therapy for Older Patients with Non-Small Cell Lung Cancer: Systematic Review and Guidelines from the French Society of Geriatric Oncology (SoFOG) and the French-Language Society of Pulmonology (SPLF)/ French-Language Oncology Group (GOLF)

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    Systematic molecular profiling and targeted therapy (TKI) have changed the face of Non-Small Cell Lung Cancer (NSCLC) treatment. However, there are no specific recommendations to address the prescription of TKI for older patients. A multidisciplinary task force from the French Society of Geriatric Oncology (SoFOG) and the French Society of Pulmonology/Oncology Group (SPLF/GOLF) conducted a systematic review from May 2010 to May 2021. Protocol registered in Prospero under number CRD42021224103. Three key questions were selected for older patients with NSCLC: (1) to whom TKI can be proposed, (2) for whom monotherapy should be favored, and (3) to whom a combination of TKI can be proposed. Among the 534 references isolated, 52 were included for the guidelines. The expert panel analysis concluded: (1) osimertinib 80 mg/day is recommended as a first-line treatment for older patients with the EGFR mutation; (2) full-dose first generation TKI, such as erlotinib or gefitinib, is feasible; (3) ALK and ROS1 rearrangement studies including older patients were too scarce to conclude on any definitive recommendations; and (4) given the actual data, TKI should be prescribed as monotherapy. Malnutrition, functional decline, and the number of comorbidities should be assessed primarily before TKI initiation. © 2022 by the authors. Licensee MDPI, Basel, Switzerland

    Prognostic Value of Routinely Measured Inflammatory Biomarkers in Older Cancer Patients: Pooled Analysis of Three Cohorts

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    BACKGROUND: The prognostic assessment of older cancer patients is complicated by their heterogeneity. We aimed to assess the prognostic value of routine inflammatory biomarkers. METHODS: A pooled analysis of prospective multicenter cohorts of cancer patients aged >/=70 was performed. We measured CRP and albumin, and calculated Glasgow Prognostic Score (GPS) and CRP/albumin ratio. The GPS has three levels (0 = CRP /= 35 g/L, i.e., normal values; 1 = one abnormal value; 2 = two abnormal values). One-year mortality was assessed using Cox models. Discriminative power was assessed using Harrell's C index (C) and net reclassification improvement (NRI). RESULTS: Overall, 1800 patients were analyzed (mean age: 79 +/- 6; males: 62%; metastases: 38%). The GPS and CRP/albumin ratio were independently associated with mortality in patients not at risk of frailty (hazard ratio [95% confidence interval] = 4.48 [2.03-9.89] for GPS1, 11.64 [4.54-29.81] for GPS2, and 7.15 [3.22-15.90] for CRP/albumin ratio > 0.215) and in patients at risk of frailty (2.45 [1.79-3.34] for GPS1, 3.97 [2.93-5.37] for GPS2, and 2.81 [2.17-3.65] for CRP/albumin ratio > 0.215). The discriminative power of the baseline clinical model (C = 0.82 [0.80-0.83]) was increased by adding GPS (C = 0.84 [0.82-0.85]; NRI events (NRI+) = 10% [2-16]) and CRP/albumin ratio (C = 0.83 [0.82-0.85]; NRI+ = 14% [2-17]). CONCLUSIONS: Routine inflammatory biomarkers add prognostic value to clinical factors in older cancer patients

    Evaluation globale standardisée systématique des rhumatismes inflammatoires chroniques: intérêts et limites

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    Introduction: National and international recommendations call for an annual standardized systematic holistic review in the management of chronic inflammatory rheumatism (CIR). This includes an assessment of disease activity and severity, as well as patient education on the disease, knowledge of pharmacological and non-pharmacological treatments, adherence to treatment and screening for comorbidities. Our study aims to recall the definition of a holistic review (HR), to present the evidence of their effectiveness and to give an overview of HR practices in France. Methods: A literature review was conducted in the Pubmed database to identify randomized controlled trials (RCTs) or meta-analyses reporting the efficacy of a multidisciplinary intervention in ICR or other chronic diseases. Two online surveys were sent to all rheumatology departments in France and to a sample of independent rheumatologists, with 34 and 19 questions respectively. These questionnaires were used to determine the profile of the responding center/rheumatologist, the existence of an HR and the obstacles or facilitators to its implementation. Results: Literature search yielded 872 articles, 24 of which were finally included: 16 RCTs and 8 meta-analyses. Only 3 articles concerned ICRs, including one meta-analysis of 10 RCTs in rheumatoid arthritis (RA). Of these 3 studies, 2 RCTs in systemic lupus and systemic sclerosis showed a favorable impact of a multidisciplinary approach on SLEDAI and grip strength and mouth opening respectively, while the meta-analysis in RA showed no benefit on disability or disease activity.The questionnaire was answered by 72 centers and 186 rheumatologists. A third of the centers had already implemented a HR during an day hospitalization. 70 % of centers estimated that they managed more than 10 patients per month, devoting an average of 35 minutes of rheumatologist time and 90 minutes of cumulative time for all other healthcare professionals (HCPs) involved in the program. Most of the HCPs involved were nurses (92 %), dieticians (56 %) and physiotherapists (56 %). The main obstacles to setting up a HR were the lack of paramedical resources, lack of economic value and lack of support from treating rheumatologists, while patient motivation was seen as a facilitating factor. Conclusion: Although HR is recommended, there is little evidence of its effectiveness in ICR. Only 36 % of responding centers have implemented such a program. This survey helps to identify the obstacles and facilitators, and to find solutions for extending this practice

    La formation des doctorants à l'information scientifique et technique

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    La formation des doctorants aux problématiques de l'information scientifique et technique représente un enjeu particulièrement sensible pour l'enseignement supérieur et la recherche en France. Doublement affectée par de profondes transformations institutionnelles ainsi que par l'évolution accélérée des technologies numériques, la culture de l'information scientifique demeure l'un des piliers fondamentaux de la recherche et un élément incontournable dans la mise en œuvre d'une politique éclairée. La plupart des domaines d'activité du chercheur sont concernés : l'investigation, la propriété intellectuelle, la recherche documentaire, l'écriture scientifique, la publication, la communication scientifique, l'évaluation, les évolutions et les opportunités offertes par les outils numériques, la vulgarisation scientifique… Cet ouvrage se propose de poser quelques jalons afin d'alimenter la réflexion des divers protagonistes, universitaires, documentalistes, bibliothécaires, qui interviennent auprès du doctorant pour l'informer ou le guider tout au long de son parcours : quels seraient les attentes des doctorants et les besoins du monde académique ? Quelles connaissances et compétences les formateurs ont-ils à mobiliser ? Quels enseignements tirer des expériences et dispositifs mis en place ? Autant de questions pour approcher une thématique à la morphologie complexe. Le débat qu'elles suscitent met en lumière un bilan riche en interrogations et fécond pour l'avenir
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