Stroke
Study links gum disease to greater white matter changes in the brain
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Research published October 22, 2025, in Neurology® Open Access reports that older adults with gum disease had more white matter hyperintensities—a marker of tissue damage—than peers without gum disease, even after accounting for other risks.
A large-scale UK study of over 165,000 dementia patients has revealed that the antipsychotic risperidone increases stroke risk across all patient groups, including those without prior heart disease. The findings challenge prior assumptions about safer candidates for the drug, which is often used as a last resort for severe agitation. Published in the British Journal of Psychiatry, the research calls for more informed prescribing practices.
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Pulsing ultrasound waves through the brain could improve survival after haemorrhagic strokes by clearing inflammatory dead blood cells, a study in mice suggests. The non-invasive approach enhanced lymphatic drainage and reduced brain damage. Researchers plan to test it in people with Alzheimer's disease next year.