Link between brain abscess and cancer . . . and other stories

Brain abscess and risk of cancerFollow up of over 1000 patients treated for cerebral abscess revealed that the incidence of cancer was doubled during the first 10 years after diagnosis in comparison with a control group matched for age, sex, and place of residence. No one form of cancer predominated. Neoplasms of the brain and eye, metastatic cancer, respiratory tract cancer, and gastrointestinal cancer occurred at roughly similar frequencies (Neurology doi:10.1212/WNL.0000000000200769).Blood markers for dementiaHigh plasma levels of phosphorylated tau proteins are associated with Alzheimer pathology in the brain. However, data from a longitudinal study of ageing show that their predictive value for dementia is diminished if other diseases are present. Plasma tau protein concentrations rose fastest among participants in whom positron emission tomography indicated elevated levels of brain amyloid. But concentrations were also high in people with chronic kidney disease, stroke, and myocardial infarction (Nature Medicine doi:10.1038/s41591-022-01875-3).The link between smell…
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