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Research demonstrates that systemic bodily inflammation alters brain function and can trigger depression-like symptoms and sickness behavior, particularly during acute infections and chronic autoimmune conditions. The study explores the biological mechanisms linking peripheral inflammation to central nervous system effects.
CADASIL is a hereditary condition affecting small blood vessels in the brain, causing recurrent strokes and progressive cognitive decline leading to early-onset dementia. Researchers are using zebrafish as a model organism to better understand the disease mechanisms and develop potential treatments.
Researchers identified neurons in an ancient brain region that function as a focus filter, enabling selective attention to relevant stimuli. Temporarily disabling these neurons in mice produced ADHD-like distractibility symptoms, which normalized upon reactivation, suggesting a biological mechanism underlying attention regulation.
Research indicates that specific variants of the AQP4 gene interact with poor sleep patterns to accelerate grey matter loss and cognitive decline. This represents a gene-environment interaction where modifiable sleep behavior may influence the expression of genetic risk for Alzheimer's disease.
Olfactory and gustatory disorders are associated with significant psychological, emotional, and social distress comparable in impact to serious chronic conditions such as stroke, diabetes, and Parkinson's disease. The loss of these senses can substantially affect quality of life and mental health outcomes.
