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1.
PLoS Med ; 21(8): e1004440, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39137167

ABSTRACT

BACKGROUND: Resveratrol is a natural compound found in red wine. It has demonstrated anti-inflammatory properties in preclinical models. We compared the effect of oral resveratrol in a new patented formulation to oral placebo for individuals with painful knee osteoarthritis. METHODS AND FINDINGS: ARTHROL was a double-blind, randomized, placebo-controlled, Phase 3 trial conducted in 3 tertiary care centers in France. We recruited adults who fulfilled the 1986 American College of Rheumatology criteria for knee osteoarthritis and reported a pain intensity score of at least 40 on an 11-point numeric rating scale (NRS) in 10-point increments (0, no pain, to 100, maximal pain). Participants were randomly assigned (1:1) by using a computer-generated randomization list with permuted blocks of variable size (2, 4, or 6) to receive oral resveratrol (40 mg [2 caplets] twice a day for 1 week, then 20 mg [1 caplet] twice a day; resveratrol group) or matched oral placebo (placebo group) for 6 months. The primary outcome was the mean change from baseline in knee pain on a self-administered 11-point pain NRS at 3 months. The trial was registered at ClinicalTrials.gov: (NCT02905799). Between October 20, 2017 and November 8, 2021, we assessed 649 individuals for eligibility, and from November 9, 2017, we recruited 142 (22%) participants (mean age 61.4 years [standard deviation (SD) 9.6] and 101 [71%] women); 71 (50%) were randomly assigned to the resveratrol group and 71 (50%) to the placebo group. At baseline, the mean knee pain score was 56.2/100 (SD 13.5). At 3 months, the mean reduction in knee pain was -15.7 (95% confidence interval (CI), -21.1 to -10.3) in the resveratrol group and -15.2 (95% CI, -20.5 to -9.8) in the placebo group (absolute difference -0.6 [95% CI, -8.0 to 6.9]; p = 0.88). Serious adverse events (not related to the interventions) occurred in 3 (4%) in the resveratrol group and 2 (3%) in the placebo group. Our study has limitations in that it was underpowered and the effect size, estimated to be 0.55, was optimistically estimated. CONCLUSIONS: In this study, we observed that compared with placebo, oral resveratrol did not reduce knee pain in people with painful knee osteoarthritis. TRIAL REGISTRATION: ClinicalTrials.gov ID: NCT02905799.


Subject(s)
Osteoarthritis, Knee , Resveratrol , Humans , Osteoarthritis, Knee/drug therapy , Osteoarthritis, Knee/complications , Resveratrol/administration & dosage , Resveratrol/therapeutic use , Male , Female , Middle Aged , Double-Blind Method , Administration, Oral , Aged , Treatment Outcome , Pain Measurement , France , Adult
3.
Rev Med Interne ; 45(8): 498-511, 2024 Aug.
Article in French | MEDLINE | ID: mdl-39097502

ABSTRACT

Cancer is associated with a hypercoagulable state and is a well-known independent risk factor for venous thromboembolism, whereas the association between cancer and arterial thromboembolism is less well established. Arterial thromboembolism, primarily defined as myocardial infarction or stroke is significantly more frequent in patients with cancer, independently of vascular risk factors and associated with a three-fold increase in the risk of mortality. Patients with brain cancer, lung cancer, colorectal cancer and pancreatic cancer have the highest relative risk of developing arterial thromboembolism. Antithrombotic treatments should be used with caution due to the increased risk of haemorrhage, as specified in current practice guidelines.


Subject(s)
Neoplasms , Thromboembolism , Humans , Thromboembolism/etiology , Thromboembolism/epidemiology , Thromboembolism/diagnosis , Neoplasms/complications , Neoplasms/epidemiology , Risk Factors , France/epidemiology , Language
4.
Front Public Health ; 12: 1390999, 2024.
Article in English | MEDLINE | ID: mdl-39139668

ABSTRACT

Background: Little is known about the effect of combined exposure to different air pollutants on mortality in dialysis patients. This study aimed to investigate the association of multiple exposures to air pollutants with all-cause and cause-specific death in dialysis patients. Materials and methods: This registry-based nationwide cohort study included 90,373 adult kidney failure patients initiating maintenance dialysis between 2012 and 2020 identified from the French REIN registry. Estimated mean annual municipality levels of PM2.5, PM10, and NO2 between 2009 and 2020 were combined in different composite air pollution scores to estimate each participant's exposure at the residential place one to 3 years before dialysis initiation. Adjusted cause-specific Cox proportional hazard models were used to estimate hazard ratios (HRs) per interquartile range (IQR) greater air pollution score. Effect measure modification was assessed for age, sex, dialysis care model, and baseline comorbidities. Results: Higher levels of the main air pollution score were associated with a greater rate of all-cause deaths (HR, 1.082 [95% confidence interval (CI), 1.057-1.104] per IQR increase), regardless of the exposure lag. This association was also confirmed in cause-specific analyses, most markedly for infectious mortality (HR, 1.686 [95% CI, 1.470-1.933]). Sensitivity analyses with alternative composite air pollution scores showed consistent findings. Subgroup analyses revealed a significantly stronger association among women and fewer comorbid patients. Discussion: Long-term multiple air pollutant exposure is associated with all-cause and cause-specific mortality among patients receiving maintenance dialysis, suggesting that air pollution may be a significant contributor to the increasing trend of CKD-attributable mortality worldwide.


Subject(s)
Air Pollutants , Air Pollution , Registries , Renal Dialysis , Humans , Female , Male , France/epidemiology , Middle Aged , Aged , Renal Dialysis/mortality , Air Pollutants/adverse effects , Air Pollution/adverse effects , Environmental Exposure/adverse effects , Cause of Death , Cohort Studies , Adult , Proportional Hazards Models , Particulate Matter/adverse effects , Risk Factors , Kidney Failure, Chronic/mortality , Kidney Failure, Chronic/therapy
5.
Neurology ; 103(5): e209662, 2024 Sep 10.
Article in English | MEDLINE | ID: mdl-39141880

ABSTRACT

BACKGROUND AND OBJECTIVES: People with multiple sclerosis (MS) have an increased risk of severe coronavirus infection due to their level of motor disability or exposure to certain immunosuppressive treatments. Thus, patients with MS have had priority access to coronavirus disease 2019 (COVID-19) vaccination. However, relapses after vaccination have been reported, leading some patients to not seek the recommended booster doses. The main objective was to estimate the risk of severe relapse after 1, 2, and 3 (booster) doses of COVID-19 vaccination in patients with MS. The secondary objectives were to assess the risk of relapse in clinically meaningful subgroups according to the type of vaccine, the characteristics of the patients, and the use of disease-modifying treatments (DMTs). METHODS: We conducted a nationwide study using data from the French National Health Data System. Patients with MS were identified according to ICD codes, specific treatments, and reimbursement data up to March 31, 2022. Relapses requiring treatment with high-dose corticosteroids were identified. A self-controlled case series method was used to evaluate the risk of relapse associated with COVID-19 vaccines in the 45 days after vaccination. The associated risk was evaluated after 1, 2, or 3 (booster) doses and is expressed as overall incidence rate ratios (IRRs) and in subgroups of interest. RESULTS: Overall, 124,545 patients with MS were identified on January 1, 2021, and 82% received at least 1 dose of a COVID-19 vaccine (n = 102,524) until December 31, 2021, for a total of 259,880 doses. The combined IRR for MS relapse was 0.97 (0.91-1.03, p = 0.30). The same absence of risk was confirmed in various subgroups (age younger than 50 years, duration of MS < 10 years, use of DMT). A small increase in the relapse risk cannot be excluded after a booster dose (IRR 1.39 [1.08-1.80]) for patients with high MS activity, especially when not treated. DISCUSSION: There is no increased risk of relapse requiring corticosteroid therapy after COVID-19 vaccination for almost all patients. We cannot exclude an increased risk after the booster dose for patients who have had at least 2 relapses in the previous 2 years. CLASSIFICATION OF EVIDENCE: This study provides Class III evidence that COVID-19 vaccination does not increase the risk of severe relapse in patients with MS.


Subject(s)
COVID-19 Vaccines , COVID-19 , Multiple Sclerosis , Recurrence , Humans , France/epidemiology , Female , Male , COVID-19 Vaccines/administration & dosage , COVID-19/prevention & control , COVID-19/epidemiology , Adult , Middle Aged , Multiple Sclerosis/drug therapy , Multiple Sclerosis/epidemiology , Vaccination , SARS-CoV-2
6.
Soins Pediatr Pueric ; 45(340): 25-28, 2024.
Article in French | MEDLINE | ID: mdl-39142751

ABSTRACT

In France, teenage pregnancy has remained a relatively moderate and stable phenomenon for several decades. Public discourse on young people's sexuality and the issue of teenage pregnancies focuses overwhelmingly on two themes: contraception and voluntary termination of pregnancy, leaving in the shadows the reality of the experiences of these young under-age mothers. Thus, one of the major challenges of support in maternity centers is to ensure the coexistence of psychic movements linked to adolescent reorganization and those linked to the birth of motherhood. With this in mind, we have been able to highlight the importance of care structures for these mothers, acting as a substitute family figure for these young people. This support seems to have fostered the creation of more appropriate conditions for the establishment of the first mother-baby bonds in these initially very precarious psychological contexts.


Subject(s)
Pregnancy in Adolescence , Humans , Pregnancy in Adolescence/psychology , Adolescent , Female , Pregnancy , France , Mothers/psychology
7.
Soins Pediatr Pueric ; 45(340): 35-41, 2024.
Article in French | MEDLINE | ID: mdl-39142753

ABSTRACT

The phenomenon of early motherhood, although marginal, is slightly higher in Le Havre than the national average. This observation, combined with a worrying socio-economic context, prompted a reflection on the need for specific support for these pregnancies: it led to the creation of a coordination system for early parenthood, piloted by Le Havre's Centre communal d'action sociale (CCAS). This article reports on the experience.


Subject(s)
Social Support , Humans , Female , Pregnancy , France
8.
Clin Exp Rheumatol ; 42(8): 1656-1664, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39152752

ABSTRACT

OBJECTIVES: The gastrointestinal tract (GIT) is frequently involved in systemic sclerosis (SSc) and is responsible for alteration of quality of life. Many complications can occur, including chronic intestinal pseudo-obstruction, digestive haemorrhage and small-intestinal bacterial overgrowth. Since early development of organ failure is associated with poor prognosis, we need to identify risk factors associated with severe GIT involvement to prevent severe forms of the disease. METHODS: We conducted an observational prospective study, which included 90 SSc patients from December 2019 to September 2021. We collected questionnaires about digestive manifestations and quality of life, blood and stool samples, and performed imaging. At inclusion and throughout the study we assessed the occurrence of malnutrition and severe GIT disorders. We performed statistical analysis to highlight eventual risk factors associated with digestive manifestations, including hierarchical cluster analysis. RESULTS: A majority of our patients had gastro-oesophageal manifestations (93.3%), followed by intestinal manifestations (67.8%) and anorectal manifestations (18.9%). We found a correlation between anorectal disorders and cardiac disease, and between gastro-oesophageal involvement and impaired pulmonary function tests. Smoking was significantly associated with occurrence of severe GIT disorders. Malnutrition was frequent and associated with more cardiac and pulmonary disease. Cluster analysis identified three groups of patients, including one cluster with cardiac and digestive involvement. CONCLUSIONS: GIT manifestations are frequent and severe in SSc. Smoking appears to be associated with severe disease. Anorectal manifestations may be associated with cardiac disease, but we need more studies to validate these results.


Subject(s)
Gastrointestinal Diseases , Quality of Life , Scleroderma, Systemic , Humans , Female , Scleroderma, Systemic/epidemiology , Scleroderma, Systemic/complications , Scleroderma, Systemic/diagnosis , Prospective Studies , Male , Middle Aged , Gastrointestinal Diseases/epidemiology , Gastrointestinal Diseases/etiology , Gastrointestinal Diseases/diagnosis , Prognosis , France/epidemiology , Risk Factors , Aged , Cluster Analysis , Adult , Severity of Illness Index , Smoking/adverse effects , Smoking/epidemiology , Malnutrition/epidemiology , Malnutrition/diagnosis
9.
J Hematol Oncol ; 17(1): 61, 2024 Aug 06.
Article in English | MEDLINE | ID: mdl-39107847

ABSTRACT

Autologous anti-CD19 chimeric antigen receptor (CAR) T cells are now used in routine practice for relapsed/refractory (R/R) large B-cell lymphoma (LBCL). Severe (grade ≥ 3) cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity (ICANS) are still the most concerning acute toxicities leading to frequent intensive care unit (ICU) admission, prolonging hospitalization, and adding significant cost to treatment. We report on the incidence of CRS and ICANS and the outcomes in a large cohort of 925 patients with LBCL treated with axicabtagene ciloleucel (axi-cel) or tisagenlecleucel (tisa-cel) in France based on patient data captured through the DESCAR-T registry. CRS of any grade occurred in 778 patients (84.1%), with 74 patients (8.0%) with grade 3 CRS or higher, while ICANS of any grade occurred in 375 patients (40.5%), with 112 patients (12.1%) with grade ≥ 3 ICANS. Based on the parameters selected by multivariable analyses, two independent prognostic scoring systems (PSS) were derived, one for grade ≥ 3 CRS and one for grade ≥ 3 ICANS. CRS-PSS included bulky disease, a platelet count < 150 G/L, a C-reactive protein (CRP) level > 30 mg/L and no bridging therapy or stable or progressive disease (SD/PD) after bridging. Patients with a CRS-PSS score > 2 had significantly higher risk to develop grade ≥ 3 CRS. ICANS-PSS included female sex, low level of platelets (< 150 G/L), use of axi-cel and no bridging therapy or SD/PD after bridging. Patients with a CRS-PSS score > 2 had significantly higher risk to develop grade ≥ 3 ICANS. Both scores were externally validated in international cohorts of patients treated with tisa-cel or axi-cel.


Subject(s)
Antigens, CD19 , Cytokine Release Syndrome , Immunotherapy, Adoptive , Lymphoma, Large B-Cell, Diffuse , Humans , Immunotherapy, Adoptive/adverse effects , Immunotherapy, Adoptive/methods , Male , Female , Middle Aged , Antigens, CD19/immunology , Prognosis , Lymphoma, Large B-Cell, Diffuse/therapy , Lymphoma, Large B-Cell, Diffuse/immunology , Cytokine Release Syndrome/etiology , Aged , Adult , Neurotoxicity Syndromes/etiology , Biological Products/therapeutic use , Biological Products/adverse effects , France , Aged, 80 and over , Receptors, Antigen, T-Cell
10.
Parasite ; 31: 45, 2024.
Article in English | MEDLINE | ID: mdl-39109982

ABSTRACT

Global changes in climate are contributing to modified Phlebotomine sand fly presence and activity, and the distribution of the pathogens they transmit (e.g., Leishmania and Phlebovirus), and are leading to their possible extension toward northern France. To predict the evolution of these pathogens and control their spread, it is essential to identify and characterize the presence and abundance of potential vectors. However, there are no recent publications describing sand fly species distribution in France. Consequently, we carried out a systematic review to provide distribution and abundance maps over time, along with a simplified dichotomous key for species in France. The review adhered to PRISMA guidelines, resulting in 172 relevant capture reports from 168 studies out of the 2646 documents retrieved, of which 552 were read and 228 analyzed. Seven species were recorded and categorized into three groups based on their abundance: low abundance species, abundant but little-studied species, and abundant vector species. Sand flies are certainly present throughout France but there is a greater diversity of species in the Mediterranean region. Phlebotomus perniciosus and Ph. ariasi are the most abundant and widely distributed species, playing a role as vectors of Leishmania. Sergentomyia minuta, though very abundant, remains under-studied, highlighting the need for further research. Phlebotomus papatasi, Ph. perfiliewi, Ph. sergenti, and Ph. mascittii are present in low numbers and are less documented, limiting understanding of their potential role as vectors. This work provides the necessary basis for comparison of field data generated in the future.


Title: Répartition et abondance des phlébotomes en France : revue systématique. Abstract: Les changements globaux du climat contribuent à modifier la présence et l'activité des phlébotomes, ainsi que la répartition des pathogènes qu'ils transmettent (par exemple Leishmania et Phlebovirus), et conduisent à leur éventuelle extension vers le nord de la France. Pour prédire l'évolution de ces pathogènes et contrôler leur propagation, il est essentiel d'identifier et de caractériser la présence et l'abondance des vecteurs potentiels. Il n'existe cependant aucune publication récente décrivant la répartition des espèces de phlébotomes en France. Par conséquent, nous avons réalisé une revue systématique pour fournir des cartes de répartition et d'abondance dans le temps, ainsi qu'une clé dichotomique simplifiée pour les espèces françaises. La revue a respecté les lignes directrices PRISMA, aboutissant à 172 rapports de capture pertinents provenant de 168 études sur les 2 646 documents récupérés, dont 552 ont été lus et 228 analysés. Sept espèces ont été recensées et classées en trois groupes en fonction de leur abondance : les espèces de faible abondance, les espèces abondantes mais peu étudiées et les espèces vectrices abondantes. Les phlébotomes sont certes présents partout en France mais on trouve une plus grande diversité d'espèces dans le bassin méditerranéen. Phlebotomus perniciosus et Ph. ariasi sont les espèces les plus abondantes et les plus largement réparties, jouant un rôle de vecteurs de Leishmania. Sergentomyia minuta, bien que très abondant, reste sous-étudié, ce qui souligne la nécessité de recherches plus approfondies. Phlebotomus papatasi, Ph. perfiliewi, Ph. sergenti et Ph. mascittii sont présents en faibles nombres et sont moins documentés, ce qui limite la compréhension de leur rôle potentiel en tant que vecteurs. Ce travail fournit la base nécessaire pour la comparaison des données de terrain générées à l'avenir.


Subject(s)
Insect Vectors , Phlebotomus , Psychodidae , France , Animals , Insect Vectors/parasitology , Phlebotomus/classification , Phlebotomus/parasitology , Psychodidae/parasitology , Psychodidae/classification , Animal Distribution , Leishmaniasis/transmission , Leishmaniasis/epidemiology , Population Density , Leishmania , Mediterranean Region , Climate Change
11.
RMD Open ; 10(3)2024 Aug 07.
Article in English | MEDLINE | ID: mdl-39117446

ABSTRACT

OBJECTIVES: To assess the potential impact of targeted therapies for psoriatic arthritis (PsA) on symptomatic treatments (non-steroidal anti-inflammatory drugs (NSAIDs), corticosteroids, opioid analgesics), methotrexate and mood disorder treatments and on hospitalisation and sick leave. METHODS: Using the French health insurance database, this nationwide cohort study included adults with PsA who were new users (not in the year before the index date) of targeted therapies for ≥9 months during 2015-2021. Main endpoints were difference in proportion of users of associated treatments, hospitalisations and sick leaves between 3 and 9 months after and 6 months before targeted therapy initiation. Logistic regression models adjusted for sex, age, psoriasis, inflammatory bowel disease and Charlson Comorbidity Index compared the impact of biologics initiation (tumour necrosis factor inhibitor (TNFi)/interleukin 17 inhibitor (IL17i)/IL12/23i) on associated treatment discontinuation. RESULTS: Among 9793 patients initiating targeted therapy for PsA (mean age: 51±13 years, 47% men), 62% initiated TNFi, 14% IL17i, 10% IL12/23i, 1% Janus kinase inhibitor, 12% phosphodiesterase-4 inhibitor. After treatment initiation, the proportion of treatment users was significantly reduced for NSAIDs (-15%), opioid analgesics (-9%), prednisone (-9%), methotrexate (-15%) and mood disorder treatments (-2%), along with decreased hospitalisations (-12%) and sick leaves (-4%). TNFi had a greater sparing effect on NSAIDs and prednisone use than IL17i (ORa=1.04, 95% CI=1.01 to 1.07; 1.04, 1.02 to 1.06) and IL12/23i (1.07, 1.04 to 1.10; 1.06, 1.04 to 1.09). Odds of methotrexate discontinuation was reduced with TNFi versus IL17i (0.96, 0.94 to 0.98) and IL12/23i (0.94, 0.92 to 0.97). CONCLUSIONS: Targeted therapy initiation for PsA reduced the use of associated treatment and healthcare, with TNFi having a slightly greater effect than IL17i and IL12/23i, except for methotrexate discontinuation.


Subject(s)
Arthritis, Psoriatic , Databases, Factual , Humans , Male , Female , Arthritis, Psoriatic/drug therapy , Middle Aged , Adult , France/epidemiology , Hospitalization/statistics & numerical data , Methotrexate/therapeutic use , Cohort Studies , Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Molecular Targeted Therapy , Aged , Patient Acceptance of Health Care/statistics & numerical data , Analgesics, Opioid/therapeutic use , Insurance, Health/statistics & numerical data , Sick Leave/statistics & numerical data , Adrenal Cortex Hormones/therapeutic use
12.
Int J Health Policy Manag ; 13: 8231, 2024.
Article in English | MEDLINE | ID: mdl-39099503

ABSTRACT

BACKGROUND: Most the Organization for Economic Co-operation and Development (OECD) countries are currently facing the challenges of the health transition, the aging of their populations and the increase in chronic diseases. Effective and comprehensive primary healthcare (PHC) services are considered essential for establishing an equitable, and cost-effective healthcare system. Developing care coordination and, on a broader scale, care integration, is a guarantee of quality healthcare delivery. The development of healthcare systems at the meso-level supports this ambition and results in a process of territorial structuring of PHC. In France, the Health Territorial and Professional Communities (HTPC) constitute meso-level organizations in which healthcare professionals (HCPs) from the same territory gather. We conducted a study to determine, in a qualitative step, the key elements of the territorial structuring of PHC in France and, then, to develop, in a quantitative step, a typology of this structuring. METHODS: A sequential-exploratory mixed-method study with a qualitative step using a multiple case approach and a quantitative step as a hierarchical clustering on principal components (HCPC) from a multiple correspondence analysis (MCA). RESULTS: A total of 7 territories were qualitatively explored. Territorial structuring appears to depend on: past collaborations at the micro-level, meso-level coordination among HCPs and multiprofessional structures, diversity of independent professionals, demographic dynamics attracting young professionals, and public health investment through local health contracts (LHCs). The typology identifies 4 clusters of mainland French territories based on their level of structuring: under or unstructured (38.6%), with potential for structuring (34.7%), in the way for structuring (25.3%) and already structured territories (1.4%). CONCLUSION: Interest in territorial structuring aligns with challenges in meso-level healthcare organization and the need for integrated care. Typologies of territorial structuring should be used to understand its impact on access, care quality, and medical resources.


Subject(s)
Primary Health Care , France , Primary Health Care/organization & administration , Humans , Territoriality , Delivery of Health Care/organization & administration , Health Personnel/organization & administration , Health Personnel/statistics & numerical data
13.
Skinmed ; 22(2): 108-113, 2024.
Article in English | MEDLINE | ID: mdl-39089993

ABSTRACT

No other organ in the human body has as many functions as the skin-biologic, cultural, social, and psychologic. The skin is the first attribute we notice, and it is the basis of our first impressions. It provides information about our state of health, our moods, our age, and sometimes our cultural background. Above all, the skin is an organ like the heart or the lungs. The objective of this exploratory anthropologic study was to shed light on the people's global perception of the skin. More precisely, we wanted to explore how people think about their skin and whether they think of it in terms of its biologic role and importance as their body's largest organ. We wanted to know how aware they are about the skin's anatomy, functionality, and the pathologies that most concern them. Do people consider their skin merely as an envelope of beauty or as something more? To find out, we conducted a prospective anthropologic study of a random sampling of multicultural individuals in and around Paris, France. Participants were given a questionnaire with six semi-structured questions and one open-ended question about their per-ceptions and attitudes of their skin. Responses were analyzed on the basis of word groupings within the six major categories of considerations represented by the available literature on the skin in both French and English. The results of this study demonstrated the mutable nature of people's perception of their skin. Rather than remaining with one fixed vision, their thoughts about their skin changed in conjunction with their age, life experiences, and lifestyle in accordance with wider societal and environmental realities. In addition, their perspectives tended to go beyond cultural groupings, displaying a certain homogeneity of vision across demographic categories. As such, we concluded that the skin is a form of virtual reality that is constructed and reconstructed as one moves through life in the society.


Subject(s)
Skin , Humans , Adult , Female , Male , Surveys and Questionnaires , Middle Aged , Prospective Studies , Young Adult , France , Cultural Diversity , Skin Physiological Phenomena , Aged
14.
Glob Chang Biol ; 30(8): e17439, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39092538

ABSTRACT

Heatwaves and soil droughts are increasing in frequency and intensity, leading many tree species to exceed their thermal thresholds, and driving wide-scale forest mortality. Therefore, investigating heat tolerance and canopy temperature regulation mechanisms is essential to understanding and predicting tree vulnerability to hot droughts. We measured the diurnal and seasonal variation in leaf water potential (Ψ), gas exchange (photosynthesis Anet and stomatal conductance gs), canopy temperature (Tcan), and heat tolerance (leaf critical temperature Tcrit and thermal safety margins TSM, i.e., the difference between maximum Tcan and Tcrit) in three oak species in forests along a latitudinal gradient (Quercus petraea in Switzerland, Quercus ilex in France, and Quercus coccifera in Spain) throughout the growing season. Gas exchange and Ψ of all species were strongly reduced by increased air temperature (Tair) and soil drying, resulting in stomatal closure and inhibition of photosynthesis in Q. ilex and Q. coccifera when Tair surpassed 30°C and soil moisture dropped below 14%. Across all seasons, Tcan was mainly above Tair but increased strongly (up to 10°C > Tair) when Anet was null or negative. Although trees endured extreme Tair (up to 42°C), positive TSM were maintained during the growing season due to high Tcrit in all species (average Tcrit of 54.7°C) and possibly stomatal decoupling (i.e., Anet ≤0 while gs >0). Indeed, Q. ilex and Q. coccifera trees maintained low but positive gs (despite null Anet), decreasing Ψ passed embolism thresholds. This may have prevented Tcan from rising above Tcrit during extreme heat. Overall, our work highlighted that the mechanisms behind heat tolerance and leaf temperature regulation in oak trees include a combination of high evaporative cooling, large heat tolerance limits, and stomatal decoupling. These processes must be considered to accurately predict plant damages, survival, and mortality during extreme heatwaves.


Subject(s)
Plant Stomata , Quercus , Thermotolerance , Quercus/physiology , Plant Stomata/physiology , Spain , Switzerland , France , Plant Leaves/physiology , Photosynthesis , Temperature , Seasons , Water , Hot Temperature , Droughts
15.
Acta Neurochir (Wien) ; 166(1): 320, 2024 Aug 02.
Article in English | MEDLINE | ID: mdl-39093339

ABSTRACT

PURPOSE: Meningeal solitary fibrous tumour (SFT) and haemangiopericytoma (HPC) are uncommon tumours that have been merged into a single entity in the last 2021 WHO Classification of Tumors of the Central Nervous System. To describe the epidemiology of SFT/HPC operated in France and, to assess their incidence. METHODS: We processed the French Brain Tumour Database (FBTDB) to conduct a nationwide population-based study of all histopathologically confirmed SFT/HPC between 2006 and 2015. RESULTS: Our study included 399 SFT/HPC patients, operated in France between 2006 and 2015, in one of the 46 participating neurosurgical centres. The incidence reached 0.062, 95%CI[0.056-0.068] for 100,000 person-years. SFT accounted for 35.8% and, HPC for 64.2%. The ratio of SFT/HPC over meningioma operated during the same period was 0.013. SFT/HPC are about equally distributed in women and men (55.9% vs. 44.1%). For the whole population, mean age at surgery was 53.9 (SD ± 15.8) years. The incidence of SFT/HPC surgery increases with the age and, is maximal for the 50-55 years category. Benign SFT/HPC accounted for 65.16%, SFT/HPC of uncertain behaviour for 11.53% and malignant ones for 23.31%. The number of resection progresses as the histopathological behaviour became more aggressive. 6.7% of the patients with a benign SFT/HPC had a second surgery vs.16.6% in case of uncertain behaviour and, 28.4% for malignant SFT/HPC patients. CONCLUSION: Meningeal SFT and HPC are rare CNS mesenchymal tumours which both share common epidemiological characteristics, asserting their merging under a common entity. SFT/HPC incidence is less that one case for 1 billion per year and, for around 100 meningiomas-like tumours removed, one SFT/HPC may be diagnosed. SFT/HPC are equally distributed in women and men and, are mainly diagnosed around 50-55 years. The more aggressive the tumour, the higher the probability of recurrence.


Subject(s)
Hemangiopericytoma , Meningeal Neoplasms , Solitary Fibrous Tumors , Humans , France/epidemiology , Hemangiopericytoma/epidemiology , Hemangiopericytoma/pathology , Hemangiopericytoma/surgery , Hemangiopericytoma/diagnosis , Female , Male , Middle Aged , Meningeal Neoplasms/epidemiology , Meningeal Neoplasms/pathology , Meningeal Neoplasms/surgery , Meningeal Neoplasms/diagnosis , Solitary Fibrous Tumors/epidemiology , Solitary Fibrous Tumors/pathology , Solitary Fibrous Tumors/surgery , Solitary Fibrous Tumors/diagnosis , Adult , Aged , Incidence , Young Adult , Meningioma/epidemiology , Meningioma/pathology , Meningioma/surgery , Meningioma/diagnosis , Adolescent , Aged, 80 and over , Child
17.
Int J Public Health ; 69: 1607449, 2024.
Article in English | MEDLINE | ID: mdl-39132381

ABSTRACT

Objective: Using a salutogenic approach, this study aimed to identify similarities in the protective factors of nurses' psychological Quality of Life (QoL) and professional wellbeing (PWB) in four countries and to assess their variability over time during the COVID-19 pandemic. Methods: This multicentric study used a longitudinal design with three measurements points: Autumn 2021, spring 2022, and autumn 2022. The study consisted in a self-administered online questionnaire addressed to nurses working in hospitals. Across all measurement times, 3,310 observations were collected in France, 603 in Switzerland, 458 in Portugal, and 278 in Canada. The outcomes were psychological QoL and PWB, and several potential protective factors were used as determinants. Results: Analyses revealed few changes over time in the outcomes. Across all countries, psychological QoL was associated positively with resilience and perceived social support, whereas PWB was associated positively with the ability to provide quality work and support from colleagues and superiors. Conclusion: The findings of this study highlighted the potential of several factors protective of nurses' psychological QoL and PWB. These should be fostered through policies and measures to support nurses.


Subject(s)
COVID-19 , Mental Health , Protective Factors , Quality of Life , Humans , COVID-19/psychology , COVID-19/epidemiology , Longitudinal Studies , Female , Male , Adult , SARS-CoV-2 , Surveys and Questionnaires , Middle Aged , Canada/epidemiology , Portugal/epidemiology , Switzerland , Social Support , France/epidemiology , Resilience, Psychological , Nursing Staff, Hospital/psychology , Pandemics
18.
Vet Res ; 55(1): 100, 2024 Aug 12.
Article in English | MEDLINE | ID: mdl-39135123

ABSTRACT

High pathogenicity avian influenza viruses (HPAIVs) have caused major epizootics in recent years, with devastating consequences for poultry and wildlife worldwide. Domestic and wild ducks can be highly susceptible to HPAIVs, and infection leads to efficient viral replication and massive shedding (i.e., high titres for an extended time), contributing to widespread viral dissemination. Importantly, ducks are known to shed high amounts of virus in the earliest phase of infection, but the dynamics and impact of environmental contamination on the epidemiology of HPAIV outbreaks are poorly understood. In this study, we monitored mule ducks experimentally infected with two H5N8 clade 2.3.4.4b goose/Guangdong HPAIVs sampled in France in 2016-2017 and 2020-2021 epizootics. We investigated viral shedding dynamics in the oropharynx, cloaca, conjunctiva, and feathers; bird-to-bird viral transmission; and the role of the environment in viral spread and as a source of samples for early detection and surveillance. Our findings showed that viral shedding started before the onset of clinical signs, i.e., as early as 1 day post-inoculation (dpi) or post-contact exposure, peaked at 4 dpi, and lasted for up to 14 dpi. The detection of viral RNA in aerosols, dust, and water samples mirrored viral shedding dynamics, and viral isolation from these environmental samples was successful throughout the experiment. Our results confirm that mule ducks can shed high HPAIV titres through the four excretion routes tested (oropharyngeal, cloacal, conjunctival, and feather) while being asymptomatic and that environmental sampling could be a non-invasive tool for early viral RNA detection in HPAIV-infected farms.


Subject(s)
Ducks , Influenza A Virus, H5N8 Subtype , Influenza in Birds , Poultry Diseases , Virus Shedding , Animals , Ducks/virology , Influenza in Birds/virology , Influenza A Virus, H5N8 Subtype/physiology , Influenza A Virus, H5N8 Subtype/pathogenicity , Poultry Diseases/virology , France/epidemiology
19.
JMIR Public Health Surveill ; 10: e57584, 2024 Aug 13.
Article in English | MEDLINE | ID: mdl-39137010

ABSTRACT

BACKGROUND: Children's mental health, including their well-being, is a major public health concern, as the burden of related disorders may last throughout one's life. Although epidemiological mental health surveillance systems for children and adolescents have been implemented in several countries, they are sorely lacking in France. OBJECTIVE: This study aims to describe the first step of the implementation of a novel surveillance system in France called Enabee (Etude nationale sur le bien-être des enfants), which focuses on the issue of mental health in children. The system aims to (1) describe the temporal trends in the population-based prevalence of the main mental health disorders and well-being in children aged 3 to 11 years, (2) explore their major determinants, and (3) assess mental health care use by this population. To do this, Enabee will rely on results from a recurrent national cross-sectional homonymous study. This paper presents the protocol for the first edition of this study (called Enabee 2022), as well as initial results regarding participation. METHODS: Enabee 2022 is a national cross-sectional study that was implemented in French schools in 2022. It used a probabilistic, multistage, stratified, and balanced sampling plan as follows: first, schools were randomly drawn and stratified according to the type of school. Up to 4 classes per school were then randomly drawn, and finally, all the pupils within each class were selected. The study covered children from preschool and kindergarten (aged 3 to 6 years, US grading system) to fifth grade (aged 6 to 11 years). Children from first to fifth grades provided a self-assessment of their mental health using 2 validated self-administered questionnaires: the Dominic Interactive (DI) and the KINDL. Parents and teachers completed a web-based questionnaire, including the Strengths and Difficulties Questionnaire. Parents also answered additional questions about their parenting attitudes; their own mental health; known social, economic, and environmental determinants of mental health in children; and their child's life habits. Health, education, and family stakeholders were involved in designing and implementing the study as part of a large consultation group. RESULTS: Data were collected from May 2, 2022, to July 31, 2022, in 399 schools across metropolitan France. Teachers completed questionnaires for 5721 pupils in preschool and kindergarten and for 15,263 pupils from first to fifth grades. Parents completed questionnaires for 3785 children in preschool and kindergarten and for 9227 children from first to fifth grades. Finally, 15,206 children from first to fifth grades completed the self-administered questionnaire. CONCLUSIONS: Enabee 2022 constitutes the first milestone in the development of a novel national epidemiological surveillance system, paving the way for improved children's mental health policies in France.


Subject(s)
Mental Health , Humans , France/epidemiology , Child , Cross-Sectional Studies , Child, Preschool , Male , Female , Mental Health/statistics & numerical data , Mental Disorders/epidemiology , Population Surveillance/methods , Surveys and Questionnaires
20.
BMC Med Educ ; 24(1): 857, 2024 Aug 09.
Article in English | MEDLINE | ID: mdl-39123155

ABSTRACT

BACKGROUND: Collaborative practice in primary health care increases care quality and security. In France, primary health care professionals increasingly work together. The link between general practitioners (GPs) and community pharmacists (CPs) is an important element. Nevertheless, effective collaboration between GPs and CPs is difficult to develop and formalize. Interprofessional education has been identified as a necessary step to prepare "collaborative practice-ready professionals". We aimed to identify the interprofessional training needs of last-year GP and CP students to develop interprofessional collaborations. METHOD: We conducted an analysis of training needs using a method inspired by occupational didactics. We collected data through individual semidirective interviews with CPs and GPs in 2022. At each stage we aimed to identify the elements of the occupational didactics to deduce the training needs in the form of a frame of reference: apparent competencies, emblematic situations and acting characteristics. We conducted an initial deductive thematic analysis to identify the apparent competencies of the two professions, the emblematic situations in which these competencies are used, and the acting characteristics used in these situations. We made an inductive categorization to define the collaborative competence and the families of situations and to model the actions of this GP-CP collaboration. RESULTS: We defined the competency "to collaborate effectively in an interprofessional setting in order to respond to care issues in one's territory" expressed in various professional situations. We described it by three capacities based on two interacting dynamics: one-off exchanges and structured collaborations. Various communication tools facilitate the implementation of these interactions. We modeled the actions of the GP-CP collaboration in the form of a conceptual map. CONCLUSION: The collaboration between the CP and the GP implements a competency that could be integrated into their professional referential. This competency, entitled "collaborating effectively in interprofessional settings to respond to care issues in one's territory", is expressed in a variety of professional situations. It is based on two parallel and interacting dynamics: one-off exchanges and a dynamic of lasting collaboration. This study thus lays the groundwork for the development of this collaborative skill among general practice and pharmacy residents.


Subject(s)
Cooperative Behavior , General Practitioners , Interprofessional Education , Interprofessional Relations , Pharmacists , Humans , General Practitioners/education , Clinical Competence , France , Qualitative Research , Male , Female , Needs Assessment
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