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A retrospective hospital-based study of 36 Alzheimer's disease patients in sub-Saharan Africa found mean age 70.5 years, significant memory loss (89.2%), and bilateral hippocampal atrophy on MRI as the primary radiological finding. The study identified associations between disease severity and factors including age, education level, and different patterns of brain atrophy.
Recent updates in dementia treatment include traditional medications (acetylcholinesterase inhibitors, memantine) now used off-label for vascular dementia, alongside newly approved amyloid-targeting monoclonal antibodies (lecanemab, donanemab) that show disease-modifying effects in early Alzheimer's disease but require careful monitoring for adverse effects. Non-pharmacological interventions such as regular exercise and multimodal lifestyle programs demonstrate cognitive benefits, while digital health applications and GLP-1 analogs show mixed or limited evidence.
This neuropathological study found that glial fibrillary acidic protein (GFAP) burden in the hippocampus is associated with both Alzheimer's disease-related pathologies (particularly neurofibrillary tangles and LATE-NC) and cognitive decline in older adults. Hippocampal GFAP appears to contribute to cognitive decline independently of these pathologies, suggesting it may be an important marker of neurodegeneration.
This study evaluated the Clock Drawing Test's ability to detect cognitive decline in 113 adults and older adults from Northeastern Brazil, examining its performance across different ages, education levels, and clinical diagnoses. Using established scoring methods and statistical analyses, the research assessed the test's sensitivity, specificity, and accuracy for identifying cognitive impairment and differentiating diagnostic conditions.
