University of Education, Winneba
54 publications · 666 citations · ORCID 0000-0003-3079-1432
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Denis Dekugmen Yar is a public health researcher with a strong focus on infectious diseases, maternal health, and environmental hygiene in Ghana. Yar's work spans epidemiological studies on malaria, hepatitis, and toxoplasmosis among pregnant women, investigations into microbial contamination in food and water, and assessments of occupational stress among healthcare workers. The research portfolio demonstrates a consistent application of cross-sectional and mixed-methods designs to address health challenges in both clinical and community settings.
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Why this gap exists: While recent studies confirm associations between maternal mental health and microbiota composition (Abstract 5, 8) and suggest the microbiome-gut-brain axis influences neurodevelopment (Abstract 0, 2), the retrieved evidence does not contain studies that directly test the mediating role of maternal microbiota changes between perinatal anxiety/depression and offspring neurodevelopmental outcomes.
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Why this gap exists: While a 2023 network meta-analysis [6] synthesizes general efficacy and adherence data for LTBI regimens, the retrieved evidence lacks direct comparative studies specifically focused on high-burden, low-resource settings, leaving the specific constraints of these environments unresolved.
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Why this gap exists: While recent reviews [8] confirm GDM alters maternal gut microbiota and neonatal health, and older studies [0] note dysbiosis across maternal sites, the retrieved evidence lacks direct, longitudinal studies correlating specific gestational maternal microbiota profiles with the *long-term* metabolic health of offspring, leaving the core question unresolved.
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Why this gap exists: While the retrieved papers confirm the individual importance of WASH access for child nutrition [0], maternal undernutrition for child development [5, 8], and the critical nature of the first 1,000 days [5], none of the provided abstracts directly analyze the specific mediating role of water and sanitation facilities in the relationship between maternal undernutrition and child developmental outcomes.
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Why this gap exists: While the retrieved literature confirms associations between water quality and child growth (e.g., Abstracts 2, 5, 8), no study directly compares the efficacy of household water treatment interventions against improved water source infrastructure for reducing stunting, leaving the specific comparative question unresolved.
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Why this gap exists: While the retrieved papers discuss general breastfeeding barriers in South Africa [8] and cultural influences in other regions like Ethiopia [6] and Malaysia [9], none specifically address the mediation of 'insufficient milk' beliefs on the relationship between maternal dietary diversity and prelacteal feeds in rural South African communities.
Sources
Discover Public Health · 2026 · 1 citations
The Anthelmintic Efficacy of Carica Papaya Seeds and Moringa Oleifera Leaves: A Systematic Review
International Journal of Veterinary Science and Research · 2026
Journal of Human Lactation · 2026
BMC Public Health · 2026
BMC Nursing · 2026
Research Square · 2026
BMC Pregnancy and Childbirth · 2026
Research Square · 2026
From need to neglect: Exploring psychological barriers to preventive interventions in pregnancy
PLOS Global Public Health · 2025 · corresponding author · 8 citations
Heliyon · 2025 · 6 citations
BMC Infectious Diseases · 2025 · 5 citations
Health Science Reports · 2025 · 3 citations
Discover Health Systems · 2025 · 3 citations
Prevalence of hepatitis B infection among tricycle waste collectors, Greater Kumasi Ghana
Discover Public Health · 2025 · 1 citations
Fruits and Vegetables as a Source of Nutraceuticals: Twenty-First Century Perspective
2025 · 1 citations
PLoS ONE · 2025 · corresponding author · 1 citations
medRxiv · 2025
medRxiv · 2025 · corresponding author
BMC Environmental Science · 2025
Research Square · 2025
Malaria Journal · 2024 · 16 citations
Advances in Pharmacological and Pharmaceutical Sciences · 2024 · 3 citations
medRxiv · 2024
Advances in Pharmacological and Pharmaceutical Sciences · 2024
Journal of Complementary and Alternative Medical Research · 2024
Scientific African · 2023 · 7 citations
Scientific African · 2023 · corresponding author · 5 citations
SSRN Electronic Journal · 2023
Self-medication among pregnant women in Ghana: A systematic review and meta-analysis
Heliyon · 2022 · 16 citations
Self-Medication Among Pregnant Women in Ghana: A Systematic Review and Meta-Analysis
SSRN Electronic Journal · 2022 · 1 citations
Microbiology Research Journal International · 2021 · 5 citations
Microbiology Research Journal International · 2021 · 2 citations
International Journal of Microbiology · 2020 · 262 citations
Fresh Vegetables and Ready-to-eat Salads: Sources of Parasitic Zoonoses in Mampong-Ashanti, Ghana
European Journal of Nutrition & Food Safety · 2020 · 13 citations
International Journal of Microbiology · 2020 · corresponding author · 12 citations
Breast Cancer: A Review of Mammography and Clinical Breast Examination for Early Detection of Cancer
OALib · 2020 · 11 citations
BMC Infectious Diseases · 2020 · 11 citations
Preprints.org · 2020 · 7 citations
2020 · corresponding author
Research Square · 2020
Research Square · 2020
Cytotoxic T Cell-Derived Granzyme B Is Increased in Severe Plasmodium Falciparum Malaria
Frontiers in Immunology · 2019 · 29 citations
The Open Diabetes Journal · 2019 · 1 citations
Research Square · 2019
Scientific Reports · 2018 · 37 citations
Scientific Reports · 2018 · 4 citations
BMC Public Health · 2017 · 34 citations
Review of Organism Density and Bacteriologic Conversion of Sputum among Tuberculosis Patients
International Scholarly Research Notices · 2017 · 4 citations
Ghana Medical Journal · 2016 · 17 citations
BMC Endocrine Disorders · 2015 · 25 citations
Tropical Medicine & International Health · 2015 · 14 citations
Sexually Transmitted Infections · 2015
Journal of Science and Technology (Ghana) · 2012 · 11 citations