Health sciences this week: cervical cancer screening in Ghana, HBV immunology in Ethiopia, prebiotic production from waste, acorn flour for low-GI bread, HCV self-testing in Nigeria, PCOS renaming, gastric/esophageal cancer risk model, periodontitis-systemic disease links, and Alzheimer’s antibody review.
📊 This week at a glance
🌍 African-led research
A nationwide cervical precancer screening program in Ghana reached over 2,000 women with high HPV positivity.
The Rotary ‘Protect Your Pearl’ initiative, the first nationally representative cervical screening project in Ghana, tested 2,124 women using HPV genotyping and visual inspection. 16.3% were HPV-positive, and 5.5% had precancerous lesions, demonstrating feasibility of integrated screening. For African policymakers, this model shows that partnerships between training centres and community organizations can overcome low screening uptake (<5% nationally).
Ethiopian chronic HBV patients show a distinct immune signature in cirrhosis, differing from non-cirrhotic phases.
Analysing 287 untreated HBV patients in Ethiopia, researchers found unique immune cell phenotypes (e.g., altered T-cell subsets) in those with cirrhosis compared to other disease phases. This challenges the assumption that HBV immunology is uniform across populations, highlighting the need for Africa-specific studies. For clinicians, it suggests that immune-based therapies may need tailoring for African patients.
Agro-industrial waste can be enzymatically converted into prebiotic oligosaccharides, offering a sustainable production route.
This review synthesizes recent advances (post-2020) in using enzymes to turn by-products like fruit peels and cereal brans into prebiotics that promote gut health. It details pretreatment methods and enzyme classes, providing a framework for industrial scale-up. For African agri-processing, this valorizes abundant waste streams, potentially creating new value-added products and reducing environmental burden.
Correction issued for a protocol on intravenous thrombolysis for central retinal artery occlusion.
This is a correction notice for a previously published systematic review protocol (PLoS ONE, 2024). The original protocol aimed to assess thrombolysis for acute central retinal artery occlusion via individual participant data meta-analysis. No new findings are presented; the correction addresses errors in the original article.
Focaccia bread made with 10% acorn flour from Tunisian oak has lower glycemic index and higher fiber.
Replacing 10% of wheat flour with Quercus canariensis acorn flour in focaccia reduced the glycemic index (GI) from 70 to 58 and increased fiber content by 50%. This is the first use of this acorn species in bread. For African food processors, it offers a way to develop low-GI baked goods using locally available, underutilized acorns, potentially aiding diabetes management.
Hepatitis C self-testing was highly acceptable and feasible among high-risk groups in Nasarawa, Nigeria.
In an implementation study at antiretroviral therapy (ART) clinics and one-stop shops, 95% of participants found HCV self-testing (HCVST) easy to use, and 89% preferred it over facility-based testing. This suggests HCVST can expand diagnosis in resource-limited settings. For Nigerian public health, integrating HCVST into HIV services could close the diagnosis gap, as many high-risk individuals already access ART clinics.
🔬 Global breakthroughs
A global consensus renames polycystic ovary syndrome to polyendocrine metabolic ovarian syndrome (PMOS).
An international panel argues that the term PCOS is misleading (implying ovarian cysts) and contributes to stigma and delayed diagnosis. The new name, PMOS, better reflects the endocrine and metabolic nature of the condition, which affects one in eight women. For African health systems, this renaming could improve awareness and reduce diagnostic delays, as PMOS is often underdiagnosed in the region.
A new risk model (J-GESS) predicts 5-year incidence of gastric and esophageal cancer using Japanese health check-up data.
The J-GESS score, derived from 33,422 individuals, simultaneously predicts risk for gastric cancer and esophageal squamous cell carcinoma (ESCC) based on age, sex, lifestyle, and lab values. It outperformed separate models. While developed in Japan, the approach could be adapted for African populations, where upper gastrointestinal cancers are also common but screening is limited.
Periodontitis is linked to over 70 systemic diseases via seven mechanistic pathways, including microbial translocation and immune dysregulation.
This review identifies seven ‘gum-shots’—mechanisms by which periodontal pathogens affect systemic health, such as entering the bloodstream, triggering inflammation, and altering the gut microbiome. This rewires the understanding of periodontitis as a systemic disease. For African clinicians, it underscores the importance of oral health in managing conditions like diabetes and cardiovascular disease, which are prevalent in the region.
Amyloid-beta-targeting monoclonal antibodies may slow cognitive decline in mild Alzheimer’s, but with significant side effects.
A Cochrane systematic review of randomized controlled trials found that these antibodies (e.g., lecanemab) modestly slow cognitive and functional decline over 18 months, but increase risk of brain swelling and bleeding. The evidence is preliminary and not yet practice-changing. For African researchers, this highlights the need for local trials, as amyloid-targeting therapies may have different risk-benefit profiles in diverse populations.
All papers are open access. Explore more Medical & Health Sciences research on FRELIP · discover open scholarship at frelip.org and search 36,000+ open works at search.frelip.org. FRELIP — born in Nigeria, built for African scholarship, serving the world.