2,122 results match your criteria: "Center for Research "Bordeaux Population Health"[Affiliation]"

Introduction: HIV self-testing is a complementary screening strategy that could facilitate access to HIV care services for street adolescents. The objectives of this study were to assess the acceptability and feasibility of HIV self-testing and their associated factors, to estimate HIV prevalence among street adolescents in Togo, and to describe the sexual behavior of this population.

Methods: A cross-sectional study was conducted between July 2021 and May 2022 in Lomé and Kara (Togolese cities with the highest number of street adolescents).

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Accuracy of Alternative PHQ-9 Scoring Algorithms to Screen for Depression in People Living With HIV in Sub-Saharan Africa.

J Acquir Immune Defic Syndr

February 2025

University of Bordeaux, National Institute for Health and Medical Research (INSERM) UMR 1219, Research Institute for Sustainable Development (IRD) EMR 271, Bordeaux Population Health Centre, Bordeaux, France.

Background: Screening for depression remains a priority for people living with HIV (PLWH) accessing care. The 9-item Patient Health Questionnaire (PHQ-9) is a widely used depression screening tool, but has limited accuracy when applied across various cultural contexts. We aimed to evaluate the performance of alternative PHQ-9 scoring algorithms in sub-Saharan African PLWH.

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Observational studies suggest a reduction in fatal or severe COVID-19 disease with the use of ACE2 inhibitors and statins. We implemented a randomized controlled tree-arm open label trial evaluating the benefits of adding telmisartan (TLM) or atorvastatin (ATV) to lopinavir boosted ritonavir (LPVr) on the SARS-CoV-2 nasopharyngeal viral load in patients with mild / moderate COVID-19 infection in Côte d'Ivoire. RT-PCR positive COVID-19 patients ≥ 18 years, with general or respiratory symptoms for less than 7 days were randomized (1:1:1) to receive LPVr (400 mg/100 mg twice daily), LPVr + TLM (10 mg once daily) or LPVr + ATV (20 mg once daily) for 10 days.

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Article Synopsis
  • Subcortical brain structures play a crucial role in various developmental and psychiatric disorders, and a study analyzed brain volumes in 74,898 individuals, identifying 254 genetic loci linked to these volumes, which accounted for up to 35% of variation.
  • The research included exploring gene expression in specific neural cell types, focusing on genes involved in intracellular signaling and processes related to brain aging.
  • The findings suggest that certain genetic variants not only influence brain volume but also have potential causal links to conditions like Parkinson’s disease and ADHD, highlighting the genetic basis for risks associated with neuropsychiatric disorders.
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Background: Adverse childhood experiences (ACEs) have been associated with volume alterations of stress-related brain structures among aging and clinical populations, however, existing studies have predominantly assessed only one type of ACE, with small sample sizes, and it is less clear if these associations exist among a general population of young adults.

Objective: The aims were to describe structural hippocampal volumetric differences by ACEs exposure and investigate the association between ACEs exposure and left and right hippocampal volume in a student sample of young adults.

Methods: 959 young adult students (18-24 years old) completed an online questionnaire on ACEs, mental health conditions, and sociodemographic characteristics.

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  • Factor V (FV) is crucial for the blood coagulation process, and its plasma levels are linked to various health issues like blood clots and diabetes.
  • The researchers used a specific statistical method called the Brown-Forsythe methodology to analyze genetic factors affecting FV levels in 4505 individuals from four different studies.
  • They identified a significant genetic variant (rs75463553) associated with the variability in FV plasma levels, highlighting the interaction between neutrophil-related genes and FV biology.
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In Lebanon, the lack of quality data on road traffic injuries (RTIs) led to the implementation of a hospital-based RTI surveillance system by the Ministry of Health in in private and public-run hospitals in the Bekaa governorate. This paper aims to describe the characteristics and severity of RTIs recorded over two years during the pilot phase. It also assesses the strengths and challenges of the surveillance system, highlighting areas for enhancement.

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  • * A study involving 30 Togolese female sex workers analyzed 156 HPV genome sequences from cervical and anal swabs, revealing identical infections but varying genetic diversity across HPV types and sites.
  • * Low-risk HPVs showed more mutations induced by APOBEC3 in the E4 and E6 genes compared to high-risk HPVs, which had fewer mutations, suggesting different cancer risk potentials among HPV types.
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Adolescents' Depression Symptoms After Social Distancing and Restrictions: The EpiCoV French Longitudinal Population-Based Cohort.

J Adolesc Health

December 2024

Bordeaux Population Health Research Center, INSERM 1219, University of Bordeaux, Bordeaux, France; Department of Child and Adolescent Psychiatry, CH Charles Perrens, Bordeaux, France. Electronic address:

Purpose: The recent worldwide health pandemic and related social distancing and restrictions negatively impacted adolescents' mental health, including depression, underscoring the need for comprehensive understanding beyond immediate impacts. We aimed to identify factors assessed during the first and second lockdowns that were associated with depression symptoms 2 years after restrictions easing.

Methods: This study included 1,946 adolescents, aged 15-18 years, involved in the French Epidémiologie et Conditions de Vie population-based cohort.

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Introduction: Adverse childhood events (ACEs) have been linked to widespread chronic pain (CP) in various cross-sectional studies, mainly in clinical populations. However, the independent role of different ACEs on the development of different types of CP remains elusive. Accordingly, we aimed to prospectively assess the associations between specific types of ACEs with the development of multisite CP in a large population-based cohort.

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Selecting patients for phase I cancer trials is crucial to ensure a sufficient life expectancy. Frail patients, better suited for palliative care, should not be exposed to new drugs with minimal benefit. Enrolling patients at high risk of early death can jeopardize the study.

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Article Synopsis
  • More people living with HIV (PWH) are getting older because of better treatments, but mental health and substance use problems are common among them.
  • A study looked at over 2800 older PWH from various countries to check how many have issues like unhealthy drinking, drug use, depression, anxiety, or PTSD.
  • Results showed that 11% of those studied had symptoms of multiple mental health issues, with unhealthy alcohol use affecting 21% and depression affecting 14%.
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In this article, we present a joint modeling approach for zero-inflated longitudinal count measurements and time-to-event outcomes. For the longitudinal sub-model, a mixed effects Hurdle model is utilized, incorporating various distributional assumptions such as zero-inflated Poisson, zero-inflated negative binomial, or zero-inflated generalized Poisson. For the time-to-event sub-model, a Cox proportional hazard model is applied.

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Article Synopsis
  • Subcortical brain structures play a crucial role in various disorders, and a study analyzed the genetic basis of brain volumes in nearly 75,000 individuals of European ancestry, revealing 254 loci linked to these volumes.
  • The research identified significant gene expression in neural cells, relating to brain aging and signaling, and found that polygenic scores could predict brain volumes across different ancestries.
  • The study highlights genetic connections between brain volumes and conditions like Parkinson's disease and ADHD, suggesting specific gene expression patterns could be involved in neuropsychiatric disorders.
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Recurrent stroke prediction by applying a stroke polygenic risk score in the Japanese population.

medRxiv

June 2024

Laboratory of Complex Trait Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan.

Background: Recently, various polygenic risk score (PRS)-based methods were developed to improve stroke prediction. However, current PRSs (including cross-ancestry PRS) poorly predict recurrent stroke. Here, we aimed to determine whether the best PRS for Japanese individuals can also predict stroke recurrence in this population by extensively comparing the methods and maximizing the predictive performance for stroke onset.

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Background: Nursing homes in the Caribbean are scarce and the characteristics of their residents have not been previously documented. This study aimed to describe the clinical profiles of residents living in nursing homes in Guadeloupe and Martinique (French West Indies).

Methods: This is a cross-sectional study of the baseline screening data from the KASEHPAD (Karukera Study of Ageing in nursing homes) study.

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Introduction: We aimed to synthesize the information on the risks and benefits of clozapine prescription for resistant challenging behavior in persons with neurodevelopmental disorders.

Methods: Articles were identified with MEDLINE, Web of Sciences, and PsycINFO search from inception through January 2024. The review was restricted to persons with intellectual disability (ID) and/or autism spectrum disorder (ASD) without comorbid psychotic or affective disorder.

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Farmers, particularly in Europe, are exposed to multiple pesticides during their working life. Such exposures can cause adverse health outcomes. We aimed to identify the main pesticide mixtures to which French agricultural workers are exposed and to classify farmers into clusters based on their mixture exposure profile.

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Article Synopsis
  • * Using a cohort of over 3,600 participants, researchers measured levels of specific antibodies and assessed SARS-CoV-2 infection outcomes over the next six months.
  • * Results showed that higher anti-Spike IgG antibody levels correlated with reduced infection risk in the control group, but this was not the case for individuals in specific patient populations.
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Tuberculosis, caused by the () bacteria, is one of the world's deadliest infectious diseases. Despite being the world's oldest pandemic, tuberculosis is very much a challenge of the modern era. In high-incidence settings, all people are at risk, irrespective of whether they have common vulnerabilities to the disease warranting the current WHO recommendations for community-wide tuberculosis active case finding in these settings.

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  • Assessing occupational exposure to radiofrequency electromagnetic fields (RF-EMF) is complicated due to the variability in exposure levels across different jobs, making it hard to determine health risks accurately.
  • A study compared historical RF-EMF exposure estimates from a job-exposure matrix (RF-JEM) with recent personal measurement data from two countries, finding poor alignment between the two methods indicating that RF-JEM might overestimate exposure.
  • The results emphasize the need for more precise personal measurements in the workplace to improve accuracy in assessing RF-EMF exposure, suggesting a shift towards a semiquantitative job-exposure model to reduce errors.
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Intermittent preventive treatment regimens for malaria in HIV-positive pregnant women.

Cochrane Database Syst Rev

September 2024

Maternal, Child and Reproductive Health Initiative, Barcelona Institute for Global Health (ISGlobal), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain.

Background: Malaria and HIV infection overlap geographically in sub-Saharan Africa and share risk factors. HIV infection increases malaria's severity, especially in pregnant women. The World Health Organization (WHO) recommends intermittent preventive treatment in pregnancy (IPTp) with sulphadoxine-pyrimethamine (SP) for pregnant women living in areas of stable malaria transmission.

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Article Synopsis
  • - The WHO recommends HPV testing for cervical cancer screening due to its high sensitivity, but further triage is needed to identify women with high-grade lesions (CIN2+) who need treatment.
  • - The ANRS-12375 study evaluated various triage methods like visual inspection (VIA) and different genotyping options in Côte d'Ivoire, Burkina Faso, and Cambodia to detect CIN2+ lesions among women living with HIV.
  • - Results showed that VIA and extended genotyping had high sensitivity (89%), with VIA also exhibiting the best specificity among the tests, making them effective options for identifying women who require treatment for CIN2+.
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Is Cancer Associated With Frailty? Results From a Longitudinal Study of Old Danish Twins.

J Gerontol A Biol Sci Med Sci

November 2024

Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark.

Background: Although age is an important risk factor for both cancer and frailty, it is unclear whether cancer itself increases the risk of frailty. We aimed to assess the association between cancer and frailty in a longitudinal cohort of older Danish twins, taking familial effect into account.

Methods: Using the Danish Cancer Registry, cancer cases were identified among participants aged 70 and over in the Longitudinal Study of Aging Danish Twins (LSADT).

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