Publications by authors named "Cisse A"

Introduction: Pre-eclampsia is a pregnancy-related complication estimated to affect up to 8% of pregnancies worldwide. It is associated with an increased risk of postpartum sustained hypertension, coronary artery disease, cerebrovascular disease, peripheral arterial disease and cardiovascular-related mortality. Nevertheless, these associations have seldom been addressed in younger women from sub-Saharan Africa (SSA).

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  • Acinetobacter baumannii, especially the carbapenem-resistant strains (CRAB), is a critical pathogen linked to antimicrobial resistance (AMR) and is prioritized by the WHO.
  • Phage therapy is being explored as a potential treatment for CRAB infections due to increasing resistance to conventional antibiotics.
  • A newly isolated lytic phage, vAbaIN10, exhibits effective lytic activity against CRAB in various conditions and shows promise in advancing treatment options for multidrug-resistant infections.
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Introduction: Despite recommendations from the WHO, antenatal care (ANC) coverage remains low in many low-income and middle-income countries (LMICs). Community health workers (CHWs) can play an important role in expanding ANC coverage through pregnancy identification, provision of health education, screening for complications, delivery of therapeutic care and referral to higher levels of care. However, despite the success of CHW programmes in various countries, WHO has called for additional research to develop evidence-based models that optimise CHW service delivery and that can be replicated across geographies.

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Background and objectives Antimicrobial resistance (AMR) is a growing global threat, with carbapenemase-producing Enterobacterales (CPEs) representing a critical public health challenge. Rapid and accurate detection of CPEs is essential for controlling fatal bacterial AMR infections. This study evaluated the performance of MacConkey media supplemented with ertapenem (MacErt1 and MacErt2) for the detection of CPEs.

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Background: Non-tuberculous mycobacteria (NTM) are environmental agents that can cause opportunistic pulmonary disease in humans and animals, often misdiagnosed as tuberculosis (TB). In this study, we describe the cases of NTM identified during the first national anti-TB drug resistance survey conducted in Mali and explore associated risk factors.

Methods: Sputum was collected from people presenting for pulmonary TB diagnosis from April to December 2019, regardless of age.

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  • Extended-spectrum β-lactamase-producing (ESBL-) bacteria are a major public health issue due to their widespread resistance to multiple antibiotics, particularly among broiler chickens in Dakar, Senegal.
  • A study found that 61.7% of broilers carried ESBL- in their cecum, with antibiotic tests revealing high resistance rates to various β-lactam antibiotics but full susceptibility to imipenem.
  • The research indicates significant multidrug resistance and the presence of multiple ESBL genes, highlighting the risk of human transmission through the food supply and the need for better surveillance and intervention strategies.
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  • The study highlights the need for genetic counseling in cases of male breast cancer, suggesting that its occurrence should be systematically investigated.
  • Researchers conducted a retrospective analysis of male breast cancer cases diagnosed between January 2007 and September 2021, examining both histopathological and molecular variables.
  • Out of 8 cases, most patients were around 50 years old, with a predominance of infiltrative non-specific carcinoma and notable occurrence of luminal A and triple-negative subtypes.
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  • * In this study, two bacteriophages, vAbBal23 and vAbAbd25, were isolated from wastewater in Dakar, Senegal, and extensively characterized for their effectiveness against extremely drug-resistant strains of A. baumannii.
  • * Both phages showed strong antibacterial properties across various pH levels and temperatures, with the ability to attack both active and biofilm forms of the bacteria, indicating their potential as safe therapeutic agents devoid of harmful genes.
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  • * A study conducted in Senegal analyzed the genetic diversity of PfCyRPA in 95 malaria isolates, finding a mostly common wild type allele, with 15 identified single nucleotide polymorphisms (SNPs), mostly appearing as unique changes.
  • * Structure-based modeling showed that while most SNPs have minor effects on PfCyRPA antibodies, some may significantly affect its structure or interaction with the viral protein PfRH5, providing insights for future malaria vaccine design.
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Vaccines to the Plasmodium falciparum reticulocyte binding-like protein homologue 5 (PfRH5) target the blood-stage of the parasite life cycle. PfRH5 has the potential to trigger the production of strain-transcendent antibodies and has proven its efficacy both in pre-clinical and early clinical studies. Vaccine-induced monoclonal antibodies (mAbs) to PfRH5 showed promising outcomes against cultured P.

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  • The human reference genome (GRCh38) primarily represents individuals of European descent, lacking the genetic diversity needed for comprehensive global studies, particularly in African populations.
  • Sherman et al. advocate for creating population-specific reference genomes, highlighting initiatives like the African Pan-Genome project that reveal significant genetic variations absent in GRCh38.
  • The Senegalese Genome project (SEN-GENOME) aims to sequence 1,000 genomes from diverse ethnolinguistic groups in Senegal, emphasizing local governance, ethical practices, and collaboration to foster inclusive genomic research and bridge disparities.
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In children with sickle cell disease (SCD), splenectomy is immediately beneficial for acute sequestration crises and hypersplenism (ASSC/HyS) but portends a long-term risk of asplenia-related complications. We retrieved peripheral and splenic red blood cells (RBCs) from 17 SCD children/teenagers undergoing partial splenectomy for ASSC/HyS, 12 adult subjects without RBC-related disease undergoing splenectomy (controls), five human spleens perfused ex vivo with Hb- and Hb-RBC, and quantified abnormal RBC by microscopy, spleen-mimetic RBC filtration, and adhesion assays. Spleens were analyzed by immunohistochemistry and transmission electron microscopy (TEM).

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Introduction: injuries are a major undesirable event in sportsmen's career and prevention depends on their characteristics. The aim of this study was to determine the characteristics of injuries suffered by elite footballers in Burkina Faso during the 2019-2020 sports season.

Methods: we conducted a cross-sectional study among 160 players who were administered a questionnaire.

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Objective: To test the effect of proactive home visits by trained community health workers (CHWs) on child survival.

Methods: We conducted a two arm, parallel, unmasked cluster-randomized trial in 137 village-clusters in rural Mali. From February 2017 to January 2020, 31 761 children enrolled at the trial start or at birth.

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Background: Epilepsy remains a significant public health concern in Sub-Saharan Africa (SSA) where diverse etiological factors contribute to its prevalence. Among these factors are conditions originating from the neuroectoderm, such as tuberous sclerosis. Insufficient medical attention and a lack of comprehensive multidisciplinary care contribute to its under-recognition.

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Despite a half-century-long global eradication effort, polio continues to have a devastating impact on individuals and communities worldwide, especially in low-income countries affected by conflict or geographic barriers to immunization programs. In response, the World Health Organization (WHO) Global Polio Eradication Initiative (GPEI) employs disease surveillance and vaccination campaigns coordinated through the WHO Regional Office for Africa (AFRO) Geographic Information System (GIS) Centre. Established in 2017, the AFRO GIS Centre played a key role in the eradication of wild-type polioviruses (WPVs) in 2020, but the COVID-19 pandemic, emergence of circulating vaccine-derived polioviruses, and transmission of WPV1 from Central Asia have led to a resurgence of polio in Sub-Saharan Africa.

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Background: Arthrodesis of the first metatarsophalangeal joint is an effective treatment of advanced hallux rigidus. Numerous options have been described for performing this intervention. The aim of this study was to evaluate the outcomes following a consistent surgical technique of joint preparation with hand tools and fixation with 2 crossed screws and a dorsal compression plate.

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The Proactive Community Case Management (ProCCM) trial in Mali reinforced the health system across both arms with user fee removal, professional community health workers (CHWs) and upgraded primary health centres (PHCs)-and randomized village-clusters to receive proactive home visits by CHWs (intervention) or fixed site-based services by passive CHWs (control). Across both arms, sick children's 24-hour treatment and pregnant women's four or more antenatal visits doubled, and under-5 mortality halved, over 3 years compared with baseline. In the intervention arm, proactive CHW home visits had modest effects on children's curative and women's antenatal care utilization, but no effect on under-5 mortality, compared with the control arm.

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Background: The sero-epidemiological characteristics of SARS-CoV-2 infections in Mali are not yet well understood. This study assessed SARS-CoV-2 antibody seroprevalence and factors associated with antibody responses in the general population of Bamako, the capital city and epicenter of COVID-19, to assess the magnitude of the pandemic and contribute to control strategy improvements in Mali.

Methods: A cross-sectional survey was conducted in September 2022 to collect sociodemographic information, clinical characteristics, comorbid factors, and blood samples.

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Background: Endocrine-disrupting chemicals may play a role in adiposity development during childhood. Until now literature in this scope suffers from methodologic limitations in exposure assessment using one or few urine samples and missing assessment during the infancy period.

Objectives: We investigated the associations between early-life exposure to quickly metabolized chemicals and post-natal growth, relying on repeated within-subject urine collections over pregnancy and infancy.

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Background/objectives: The infant diet represents one of the main modifiable determinants of early growth. This study aimed to investigate the associations of infant feeding practices with body mass index (BMI) until 7.5 years.

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Background: Africans are underrepresented in Huntington's disease (HD) research. A European ancestor was postulated to have introduced the mutant Huntingtin (mHtt) gene to the continent; however, recent work has shown the existence of a unique Htt haplotype in South-Africa specific to indigenous Africans.

Objective: We aimed to investigate the CAG trinucleotide repeats expansion in the Htt gene in a geographically diverse cohort of patients with chorea and unaffected controls from sub-Saharan Africa.

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Background: Viruses are the leading etiology of acute respiratory infections (ARI) in children. However, there is limited knowledge on drivers of severe acute respiratory infection (SARI) cases involving viruses. We aimed to identify factors associated with severity and prolonged hospitalization of viral SARI among children < 5 years in Burkina Faso.

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  • Influenza viruses account for only 20% of severe acute respiratory infections (SARI) in Burkina Faso, with other viral causes largely uninvestigated.
  • A study tested 1,541 specimens from SARI patients between 2016 and 2019, finding that 76.1% of those negative for influenza contained other respiratory viruses, primarily human rhinoviruses.
  • Infants aged 1-4 years were the most affected demographic, indicating a need for enhanced surveillance that includes common non-influenza pathogens to improve clinical and preventive measures.
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During human childhood, brain development and body growth compete for limited metabolic resources, resulting in a trade-off where energy allocated to brain development can decrease as body growth accelerates. This preregistered study explores the relationship between language skills, serving as a proxy for brain development, and body mass index at three distinct developmental stages, representing different phases of body growth. Longitudinal data from 2002 children in the EDEN mother-child cohort were analyzed using structural equation modeling.

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