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Flu, COVID-19 Linked to Parkinson's Risk?
30 Sep
Summary
- RNA viruses may prompt harmful protein clumps in brain cells.
- A cellular protein DDX39A acts as a safeguard against damage.
- Repeated viral infections could increase Parkinson's odds.

Emerging research explores a potential connection between RNA virus infections, including influenza and COVID-19, and an elevated risk of neurodegenerative conditions like Parkinson's disease. Scientists are investigating how these viral infections trigger molecular changes that could lead to neurodegeneration.
The study highlights that RNA viruses contain RNA as genetic material, which can form structures that encourage the clumping of a protein called alpha-Synuclein. These abnormal clumps are characteristic of Parkinson's disease and can impair neuronal function.
As a defense mechanism, cells possess a protein called DDX39A. This protein can move to counteract the viral RNA, hindering viral multiplication and slowing the formation of alpha-Synuclein clumps. This action reduces the viral load and mitigates the progression of amyloid formation.
However, cellular processes involve delicate balances. While protective mechanisms exist, certain conditions might favor amyloid formation in virus-infected cells. Researchers suggest that repeated exposure to viral infections could potentially increase the long-term odds of developing Parkinson's disease.