Publications by authors named "Diop M"

Malaria caused by Plasmodium spp., is a major public health issue in sub-Saharan Africa. The fight against malaria has stalled due to increasing resistance to treatments and insecticides.

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Background: Senegal has made significant progress in reducing the burden of malaria, but transmission remains highly heterogeneous, with specific population subgroups likely at higher risk. Consultations with the National Malaria Control Programme (NMCP) and a review of available data identified nomadic pastoralists, gold miners, and Koranic school students as potential high-risk populations (HRPs). This study aimed to evaluate whether these populations are at higher risk of malaria and better characterize their exposure patterns to inform the design of targeted intervention strategies.

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This study presents a groundbreaking approach to modeling the Hall-Héroult cathode used in aluminum production. Our innovative model is grounded in a sophisticated porous electrode methodology coupled with state-of-the-art numerical simulations. This enables us to capture the intricate physicochemical processes within the system precisely, encompassing the migration, diffusion, and convection of ionic species.

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Increased amplitude of peripheral vasomotion is a potential early marker of sepsis-related microcirculatory impairment; however, previous reports relied on clinically unsuitable invasive techniques. Hyperspectral near-infrared spectroscopy (hsNIRS) and diffuse correlation spectroscopy (DCS) are non-invasive, bedside techniques that can be paired to continuously monitor tissue hemoglobin content (HbT), oxygenation (StO), and perfusion (rBF) to detect vasomotion as low-frequency microhemodynamic oscillations. While previous studies have primarily focused on the peripheral microcirculation, cerebral injury is also a common occurrence in sepsis and hsNIRS-DCS could be used to assess cerebral microcirculatory function.

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The socio-economic impact of rearing Gobra zebu cattle in rural areas has yet to be demonstrated in Senegal. This impact was evident in the 1950s when a genetic breeding programme for this breed was initiated by the 'Centre de Recherches Zootechniques' of Dahra. The management of animals in this programme has evolved considerably, particularly due to the constraints encountered and the progressive acquisition of knowledge about the animals.

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Background & Aims: Timely prognostic communication is a critical component of care for patients with decompensated cirrhosis (DC). However, few studies have examined the association of prognostic communication with symptoms, mood, and health-related quality of life (HRQOL) in this population.

Methods: In this cross-sectional study of 218 outpatients with DC, we assessed their self-reported health status (terminally ill vs not terminally ill), their prognostic communication with their hepatologists (Prognosis and Treatment Preferences Questionnaire), symptom burden (Revised Edmonton Symptom Assessment Scale), psychological distress (Hospital Anxiety and Depression Scale), and HRQOL (Short-Form Liver Disease Quality of Life scale).

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A cross-sectional survey was conducted at Polytechnic High School (PHS) to assess the spread of COVID-19 infection among students and staff. A random cluster sampling was conducted between May 19 and August 18, 2022, after the fourth wave of COVID-19 in Senegal. IgM and IgG SARS-CoV-2 antibodies were screened using WANTAI SARS-CoV-2 ELISA assays.

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Background: In several European Union countries, undocumented migrants face significant barriers to accessing universal healthcare. In Spain, Royal Decree-Law 16/2012 introduced restrictions that limited undocumented migrants' access to healthcare services, offering only emergency, maternal, and paediatric care. The implementation of this law created significant disparities in access to healthcare across regions.

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Article Synopsis
  • Traumatic esophageal-tracheal fistulas (ETFs) from stab wounds are uncommon and often missed in diagnoses, requiring imaging for detection.
  • A case study of a patient stabbed in the back showed complications including air bubbles in the mediastinum, necessitating surgical intervention to repair the small ETF.
  • Successful treatment involved direct suture repair and careful postoperative monitoring, leading to a speedy recovery and the ability to resume oral feeding after two weeks.
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Objective: Develop an artificial intelligence (AI) model to track otologic instruments in mastoidectomy videos.

Study Design: Retrospective case series.

Setting: Tertiary care center.

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Introduction: Little is known about the interdependence of psychological distress among patients with decompensated cirrhosis and their caregivers.

Methods: In this cross-sectional study, we examined the interdependence of psychological distress (Hospital Anxiety and Depression Scale) among 127 patient-caregiver dyads using Actor-Partner Interdependence Modeling.

Results: Among dyads, 26% had both partners reporting clinically significant anxiety and 18% reporting clinically significant depression.

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  • The study analyzes the first major beaching of holopelagic Sargassum in Senegal, emphasizing its environmental impact and economic potential.
  • It identifies the dominant morphotype (S. fluitans III) and finds unique biochemical properties, such as lower arsenic but higher cadmium and mercury levels compared to other regions.
  • The research suggests using the Sargassum for applications in animal feed and agriculture, while advocating for African inter-governmental collaboration to address the increasing frequency of Sargassum beaching events.
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  • This study examined how phenylephrine (PE) affects both brain and skeletal muscle microcirculation in rats using a combination of hyperspectral near-infrared spectroscopy and diffuse correlation spectroscopy.
  • Results showed that PE caused a decrease in oxygenation and blood flow in skeletal muscle while increasing cerebral oxygenation and perfusion initially, despite a later drop in brain blood flow.
  • The findings suggest that while PE induces vasoconstriction in skeletal muscles, it can redirect and enhance blood flow to the brain, indicating a complex interplay between peripheral and cerebral circulation.
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Background: HIV/AIDS-related early mortality has long been a significant challenge. Subsequent to recent policy changes and treatment advancements, we aimed to assess changes in early mortality rates in 2017-19 and 2020-23 compared to 2013-16.

Methods: This is a 10-year multicenter survival study in people living with human immunodeficiency virus having initiated ART between 2013 and 2023.

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Adoptive cell therapy (ACT) enhances the patient's own immune cells' ability to identify and eliminate cancer cells. Several immune cell types are currently being applied in autologous ACT, including T cells, natural killer (NK) cells, and macrophages. The cells' inherent antitumor capacity can be used, or they can be targeted toward tumor-associated antigen through expression of a chimeric antigen receptor (CAR).

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Diffuse correlation spectroscopy (DCS) is a powerful tool for assessing microvascular hemodynamic in deep tissues. Recent advances in sensors, lasers, and deep learning have further boosted the development of new DCS methods. However, newcomers might feel overwhelmed, not only by the already-complex DCS theoretical framework but also by the broad range of component options and system architectures.

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Objective: To systematically review the health-related quality of life (HRQoL) burden and costs of spinal cord injury (SCI) on health services, patients and wider society.

Methods: A systematic review guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Statement was conducted in March 2021 through Scopus, PubMed and Embase databases. Inclusion criteria were quantitative studies on SCI reporting healthcare costs, social costs and/or HRQoL measured with the Euroqol EQ-5D or Short-Form 36.

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Importance: The COVID-19 pandemic resulted in multiple socially restrictive public health measures and reported negative mental health impacts in youths. Few studies have evaluated incidence rates by sex, region, and social determinants across an entire population.

Objective: To estimate the incidence of hospitalizations for mental health conditions, stratified by sex, region, and social determinants, in children and adolescents (hereinafter referred to as youths) and young adults comparing the prepandemic and pandemic-prevalent periods.

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Importance: Hospitalizations for eating disorders rose dramatically during the COVID-19 pandemic. Public health restrictions, or stringency, are believed to have played a role in exacerbating eating disorders. Few studies of eating disorders during the pandemic have extended to the period when public health stringency restrictions were lifted.

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Artificial intelligence (AI), particularly computer vision and large language models, will impact facial plastic and reconstructive surgery (FPRS) by enhancing diagnostic accuracy, refining surgical planning, and improving post-operative evaluations. These advancements can address subjective limitations of aesthetic surgery by providing objective tools for patient evaluation. Despite these advancements, AI in FPRS has yet to be fully integrated in the clinic setting and faces numerous challenges including algorithmic bias, ethical considerations, and need for validation.

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  • Cholera, caused by the bacteria Vibrio cholera, poses a significant public health risk in Africa; this study aimed to examine pathogenic Vibrionaceae in human stool and environmental water samples from Saint-Louis, Senegal.
  • A hospital-based study from 2013 to 2015 involved collecting stool samples and conducting monthly water testing to identify Vibrio bacteria using PCR techniques.
  • The results showed no V. cholerae strains in patients' stool, but various Vibrio species, including toxigenic ones, were found in water, highlighting potential environmental risks for Vibriosis transmission in the region.*
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Natural spices play an essential role in human nutrition and well-being. However, their processing on different scales can expose them to potential sources of contamination. This study aimed to describe the bacterial community genomic footprint in spices sold in Senegal.

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Neoadjuvant immunotherapy will change the standard of care for advanced resectable cutaneous squamous cell carcinoma (cSCC) and possibly other non-melanoma skin cancers. With pathological complete response rates around 50% for cSCC in early studies, neoadjuvant therapy allows patients the possibility of significant reduction in tumor size, de-escalation of adjuvant therapy, and improved long-term outcomes. Patients must be carefully selected to ensure that there is a margin of safety with respect to resectability, such that if a tumor progresses on neoadjuvant therapy, there remains a curative surgical option that is acceptable to the patient.

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  • * Time-domain diffuse optical imaging (TD-DOI) could provide a more sensitive method for detecting changes in RA disease activity and treatment failure than current monitoring techniques.
  • * A TD-DOI hand imaging system was developed and validated using models that mimic finger joints, showing its potential to distinguish between different levels of RA disease activity and monitor patients over time for early treatment failure.
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  • Early intervention within 3-5 months can improve outcomes for rheumatoid arthritis (RA), but current monitoring methods have a delay in detecting treatment failures that can last 3-6 months.
  • The study aims to create a new method using time-domain diffuse optical imaging (TD-DOI) to extract data that reflects RA disease activity more accurately.
  • Results show that spatiotemporal features from TD-DOI images are sensitive to small changes in disease activity, potentially allowing for earlier identification of treatment failures and better patient outcomes.
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