Krill oil protects dopaminergic neurons from age-related degeneration, decreases alpha-synuclein aggregation, and improves dopamine-dependent cognition and behavior in lab models of Parkinson's disease.
Researchers have designed a new method of converting non-neural cells into functioning neurons that are able to form synapses, dispense dopamine, and restore the function of neurons undermined by Parkinson's associated destruction of dopaminergic cells.
The motivation to exert sustained effort to achieve a goal following stress exposure depends on an individual's level of trait anxiety. The expression of CRHR1 in dopaminergic neurons in the ventral tegmental area connects anxiety to either boosted or diminished motivation levels.
A new study reveals some experimental antibody treatments for neurodegenerative disorders increase neuroinflammation. The effect was seen in human microglia, not mouse microglia. This may explain why mouse studies have shown these treatments to be effective, but the effect has not been replicated in human studies.
Enteric neurons appear to play a key role in the development of Parkinson's disease. The findings support the hypothesis and previous studies that the neurodegenerative disease may start in the gut before spreading to the brain. Researchers also found oligodendrocytes were affected during the early stages of Parkinson's, even before the loss of dopaminergic neurons.
Mice infected with bacteria that cause mild intestinal infections exhibited Parkinson's like symptoms later in life. The findings provide a pathophysiological model in which intestinal infections may act as a trigger for Parkinson's disease.