Main > NEUROLOGY. > Parkinsons Disease > Etiology. > Pesticide > Rotenone > Injected into Rat. Resulting in > Complex 1 Defect. Lewy Bodies

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STUDY Researchers set out to determine whether they could produce a better animal model for disease. Such animals would have a generalized "defect" in Complex 1, a dehydrogenase in the mitochondrial electron transport chain. And their brains would contain protein aggregates called Lewy bodies that are characteristic of disease.
The group infused rotenone, a natural prodt used as a pesticide, into the jugular vein in rats. Rotenone was chosen "because it's the biochemical standard for inhibiting Complex 1, & it's very lipophilic, so it crosses [cell] membranes" "But it was also of interest that rotenone was a known pesticide, & epidemiological studies have implicated pesticide exposure as risk factor for disease.
Over time, the low doses of rotenone did produce disease's symptoms, accompanied by Lewy bodies & generalized deficiency of Complex 1 in the rats.
The author acknowledges that the study doesn't provide "enough evidence that rotenone or any other specific pesticide is a culprit in disease. Moreover, "whatever people may ingest that may cause disease over a number of years, their risk is going to be modulated by their [genetic] ability to detoxify" the compds. But he insists that the findings warrant more epidemiological studies on the effects of pesticides
UPDATE 11.00
AUTHOR This data is not available for free
LITERATURE REF. This data is not available for free

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