Trending Now - Gut Microbiome Could Indicate Parkinson's Risk Early on

WHO:

Neuroscience News - Researchers from University College London (UCL) led the study.

The Guardian - Professor Anthony Schapira, head of clinical and movement neurosciences at UCL, is the lead investigator of the study.

The Guardian - Claire Bale, an associated director of research at Parkinson’s UK, commented on the study.

WHAT:

Neuroscience News - Researchers identified a distinctive “microbial signature” in the gut that may indicate an elevated risk of Parkinson’s disease before symptoms appear.

Neuroscience News - The study involved 271 people with Parkinson’s disease, 43 carriers of the GBA1 variant with no clinical symptoms, and 150 healthy control participants.

The Guardian - The abundance of 176 different species of gut microbes differed between people with Parkinson’s disease and healthy participants.

The Guardian - The findings were corroborated in additional cohorts totaling 638 people with Parkinson’s disease and 319 healthy controls from the UK, South Korea, and Turkey.

WHERE:

Neuroscience News - The study was conducted at UCL, Royal Free Hospital in London, and included participants from the UK, Korea, and Turkey.

The Guardian - The research included data from participants in the UK, South Korea, and Turkey.

WHEN:

The Guardian - The study was published in 2026.

The Guardian - Cases of Parkinson’s disease have doubled over the past 25 years, with over 8.5 million people currently living with the condition.

WHY:

Neuroscience News - There is an urgent need to develop treatments that can stop or slow the progression of Parkinson’s disease, which is a major cause of disability worldwide.

The Guardian - The study suggests that changes in the gut microbiome may correlate with disease progression and could help identify individuals at risk of developing Parkinson’s disease.

HOW:

Neuroscience News - The researchers used innovative microbiome analysis methods to assess clinical and fecal data from study participants.

The Guardian - The study analyzed dietary habits, revealing that those with a more balanced and varied diet were less likely to have gut microbiomes suggesting an elevated risk of Parkinson’s disease.

(UPDATED April 21, 2026 13:23 UTC)

Researchers from University College London have identified a distinctive microbial signature in the gut that may indicate an elevated risk of Parkinson's disease before symptoms appear, according to a study led by Professor Anthony Schapira. The research involved 271 people with Parkinson's, 43 carriers of the GBA1 variant without clinical symptoms, and 150 healthy controls, revealing significant differences in gut microbes among these groups, with findings corroborated in additional cohorts from the UK, South Korea, and Turkey. This study highlights the urgent need for treatments to slow the progression of Parkinson's disease, which affects over 8.5 million people worldwide and has seen cases double in the past 25 years.