478 results match your criteria: "Universite de Lome[Affiliation]"

Background: Few data are available on the real-world efficacy of receiving tenofovir-lamivudine-dolutegravir (DTG) as HIV treatment, particularly among young people in West Africa. Here, we evaluated pharmaco-virological outcomes and resistance profiles among Togolese children and adolescents.

Methods: A cross-sectional study was conducted in Lomé, Togo, enrolling antiretroviral-treated people with HIV aged from 18 months to 24 years.

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Background: Due to the low number of individuals with HIV-2, no randomised trials of HIV-2 treatment have ever been done. We hypothesised that a non-comparative study describing the outcomes of several antiretroviral therapy (ART) regimens in parallel groups would improve understanding of how differences between HIV-1 and HIV-2 might lead to different therapeutic approaches.

Methods: This pilot, phase 2, non-comparative, open-label, randomised controlled trial was done in Burkina Faso, Côte d'Ivoire, Senegal, and Togo.

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Sex-Based Disparities in the Transition to Dolutegravir-Based Antiretroviral Therapy in West African HIV Cohorts.

Open Forum Infect Dis

May 2024

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

Article Synopsis
  • - The transition to dolutegravir for over 21,000 individuals in West Africa showed varied timelines and patterns across different clinics.
  • - While there were initial differences in treatment access based on sex, these gaps narrowed over time, although some disparities remained.
  • - Key factors that aided the switch to dolutegravir included being male, under 50 years old, having viral suppression, and not being on protease inhibitor-based regimens.
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Antibody-based fluorescence analysis of female reproductive tissues in research of sexually transmitted diseases allows for an in-depth understanding of protein localization, interactions, and pathogenesis. However, in many cases, cryosectioning is not compatible with biosafety regulations; at all times, exposure of lab personnel and the public to potentially harmful pathogens from biological infectious material must be avoided; thus, formaldehyde fixation is essential. Due to formaldehyde's cross-linking properties, protein detection with antibodies can be impeded.

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Article Synopsis
  • In 2015, Togo implemented a "test-and-treat" strategy to combat mother-to-child transmission (MTCT) of HIV, yet the MTCT rate was still 3.6% in 2020, prompting a study in Lomé aimed at estimating HIV seroconversion in pregnancy and identifying at-risk pregnant women.
  • The study involved a cross-sectional analysis of 3,148 umbilical cord blood samples collected from women after delivery, revealing a 3.8% seroprevalence of HIV-1, with most of the positive cases having previous knowledge of their HIV status before pregnancy.
  • The findings indicated that a majority of the HIV-positive women were on antiretroviral treatment prior
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Low dietary diversity (LDD) is prevalent among vulnerable populations, posing a morbidity risk. Few studies have been conducted on the dietary diversity of migrants. The objectives of this study are to determine the prevalence of LDD among migrants in Morocco and the risk factors associated with it.

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Background: Artemether-lumefantrine (AL) and dihydroartemisinin-piperaquine (DP) are the currently recommended first- and second-line therapies for uncomplicated Plasmodium falciparum infections in Togo. This study assessed the efficacy of these combinations, the proportion of Day3-positive patients (D3 +), the proportion of molecular markers associated with P. falciparum resistance to anti-malarial drugs, and the variable performance of HRP2-based malaria rapid diagnostic tests (RDTs).

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Article Synopsis
  • The study assesses the impact of the COVID-19 pandemic on health indicators related to HIV, malaria, and tuberculosis (TB) in Togo, revealing limited data from sub-Saharan Africa prior to this research.
  • It analyzed national health data from January 2019 to December 2021, employing Poisson segmented regression to evaluate changes in nine key health indicators before and during the pandemic.
  • Results showed a significant decline in six indicators, with urgent recommendations for improving healthcare system preparedness in Togo despite some maintenance of HIV, malaria, and TB services over time.
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Article Synopsis
  • Integrase strand transfer inhibitors (INSTIs) are now the recommended first-line treatment for HIV in low- and middle-income countries due to rising resistance to non-nucleoside reverse transcriptase inhibitors (NNRTIs).
  • A study analyzed samples from West Africa and Southeast Asia to assess the prevalence of pretreatment drug resistance (PDR) to INSTIs, finding a low frequency of 1.1% while overall PDR to any drug class was significantly higher at 17.9%.
  • The findings advocate for the use of INSTIs in these regions yet highlight the urgent need to prevent further drug resistance to ensure effective treatment outcomes.
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Effects of the COVID-19 Pandemic on ART Initiation and Access to HIV Viral Load Monitoring in Adults Living With HIV in West Africa: A Regression Discontinuity Analysis.

J Acquir Immune Defic Syndr

June 2024

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

Objectives: Efforts to control the COVID-19 pandemic have potentially compromised the availability and/or quality of HIV services. We aimed to assess the pandemic's impact on antiretroviral therapy (ART) initiation and HIV viral load (VL) monitoring in 3 West African countries.

Methods: We used routinely collected data from 5 clinics contributing to the International epidemiologic Database to Evaluate AIDS collaboration in Burkina Faso, Côte d'Ivoire, and Nigeria.

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  • The primary method for controlling malaria mosquitoes relies on insecticides, but rising resistance to these chemicals poses a challenge for malaria control efforts.
  • Researchers studied the organophosphate insecticide pirimiphos-methyl and discovered new resistance mechanisms in mosquito populations, linked to detoxification enzymes.
  • Their findings indicate a parallel evolution for resistance traits, particularly a specific copy number variant in a gene associated with resistance, which has significant implications for future malaria control strategies.
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Understanding the effect of crossbreeding on egg quality and incubation is essential for the selection of superior genetic combinations in breeding programs. This study evaluated the effect of crossbreeding on egg quality and incubation activities of the Sasso and Wassache chickens in a pure (Sasso X Sasso [SS]; Wassache X Wassache [WW]) and reciprocal cross (Wassache X Sasso [WS]; Sasso X Wassache [SW]) design. A total of 1431 eggs were incubated while 400 eggs were selected for egg quality.

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Hypertension is a public health problem. Failure to control blood pressure figures is responsible for morbidity and premature mortality. This study aims to describe the characteristics of hypertensive patients followed at primary health care centers in Marrakech.

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Two-dimensional transition-metal dichalcogenides have attracted significant attention because of their unique intrinsic properties, such as high transparency, good flexibility, atomically thin structure, and predictable electron transport. However, the current state of device performance in monolayer transition-metal dichalcogenide-based optoelectronics is far from commercialization, because of its substantial strain on the heterogeneous planar substrate and its robust metal deposition, which causes crystalline damage. In this study, we show that strain-relaxed and undamaged monolayer WSe can improve a device performance significantly.

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Introduction: In the Latin America and Caribbean region, Haiti is one of the countries with the highest rates of HIV. Therefore, this study examined the factors associated with HIV testing among women in Haiti and trends in HIV testing in 2006, 2012, and 2016/17.

Methods: Data from the last three Haitian Demographic and Health Surveys (2006, 2012, and 2016/17) were used.

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Angularly Cascaded Long-Period Fiber Grating for Curvature and Temperature Detection.

Sensors (Basel)

December 2023

Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 1108 Geng Wen Road, Hangzhou 311231, China.

A high-sensitivity curvature sensor with dual-parameter measurement ability based on angularly cascaded long-period fiber grating (AC-LPFG) is proposed and experimentally demonstrated, which consists of two titled LPFGs (TLPFGs) with different tilt angles and the same grating period. AC-LPFG was fabricated by using a deep ultraviolet laser and an amplitude-mask in our laboratory. The experimental results show that simultaneous measurement of curvature and temperature can be achieved by monitoring the wavelengths of two resonant peaks for different TLPFGs.

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Background: While recognized as a key HIV prevention strategy, preexposure prophylaxis (PrEP) availability and accessibility are not well documented globally. We aimed to describe PrEP drug registration status and the availability of PrEP services across HIV care sites participating in the International epidemiology Databases to Evaluate AIDS (IeDEA) research consortium.

Methods: We used country-level PrEP drug registration status from the AIDS Vaccine Advocacy Coalition and data from IeDEA surveys conducted in 2014, 2017 and 2020 among participating HIV clinics in seven global regions.

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Background: In Togo, malaria remains a major public health problem, and the management of suspected cases requires confirmation with appropriate biological methods. Malaria diagnosis has been improved by the introduction of rapid diagnostic tests (RDTs), recommended by the World Health Organization (WHO) for areas where microscopy is not available. To be used, these RDTs must meet performance criteria defined by the WHO.

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This study aimed to assess the genetic diversity and population structure of 12 guinea fowl phenotypes from three climatic zones (Guinean, Sudano-Guinean and Sudanian) of Benin. A total of 96 adult guinea fowl, aged at least 6 months, were selected for blood sampling. Fragment analysis was carried out using 17 polymorphic microsatellite markers.

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Background: Malaria remains the leading cause of mortality and morbidity in young children in sub-Saharan Africa. To prevent malaria in children living in moderate-to-high malaria transmission areas, the World Health Organization has recommended perennial malaria chemoprevention (PMC). Prior to piloting PMC implementation in southern Togo, a household survey was conducted to estimate malaria infection prevalence in children under 2 years of age (U2).

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