Study identifies unexpected viral link to Parkinson’s disease risk

According to the study, conducted by researchers at Texas A&M University, viral infection may act as a catalyst for the development of Parkinson’s disease. The findings emerged after scientists developed a novel mouse model to investigate the condition.

Rather than relying on neurotoxic chemicals or genetic modifications—approaches commonly used in Parkinson’s research—the team infected laboratory mice with a virus that naturally circulates among these animals. Within one week, the virus had infiltrated dopamine-producing neurons in the brain. After approximately one month, it began damaging these cells.

As the neuronal damage progressed, the mice developed hallmark symptoms associated with Parkinson’s disease, including slowed walking, impaired motor coordination, and movement difficulties.

The researchers said the findings indicate that certain viral infections can trigger inflammation in the brain, which may gradually lead to the death of nerve cells.

They also noted that Parkinson’s disease could emerge years after the initial infection, with its onset likely influenced by a combination of genetic susceptibility and environmental factors.

The scientists emphasized that the study was conducted exclusively in laboratory animals and that the findings must be validated through clinical studies involving humans. Nevertheless, they believe the research could contribute to a better understanding of the origins of Parkinson’s disease and support the development of improved strategies for its early detection and treatment.