Exposure to perfluorooctane sulfonate and perfluorooctanoic acid, so-called "forever chemicals," results in a decline of both dopamine levels and dopamine neurons in roundworms.
Researchers say 1 in 10 older adults have participated in genetic testing, but far more have an interest in getting their DNA analyzed. However, two thirds of those polled say genetic testing could lead them to worry more about their future health.
Lewy body disorders, including Parkinson's disease and Lewy body dementia, comprise of two distinct subtypes. One subtype originates in the peripheral nervous system (PNS) of the gut and spreads to the brain. The other originates in the brain, or enters the brain via the olfactory system, before spreading to the brainstem and PNS.
A new study reports Parkinson's related dyskinesia occurs when striatonigral neurons become less responsive to GABA.