First gene linked to stroke recovery identified
The study, by far the largest of its kind ever conducted, examined previously published genomes of more than 2,000 individuals of European ancestry who were recovering from a stroke.
The research revealed a variation in the PATJ gene that likely influences its expression levels, and results in a worse recovery after stroke caused by a blocked brain vessel, called an ischaemic stroke.
The findings have identified the first genetic mechanism that could influence stroke recovery, and point the way to new research directions searching for treatments targeting PATJ.
Stroke is the leading cause of death and disability in Australia, and more than half of stroke survivors will have long lasting brain impairments, such as language or movement problems.
While some patients recover completely in the long run, others have incomplete or no recovery at all. The current study provides the first evidence that our genes could determine the extent of our recovery, at least to some degree.
Professor Vincent Thijs, head of the stroke team at the Florey, and head of Austin Health’s acute stroke unit, said,
“We don’t yet know the exact way this gene variation influences stroke recovery, but this is the first step in a series of experiments to identify recovery mechanisms. For the first time we now have a biological clue about the stroke recovery process in humans. We hope that further experiments in the next coming years may lead to a drug that boosts the recovery process.
The international research from Melbourne, Europe and the United States was published in Circulation Research and can be accessed at the journal website: https://www.ahajournals.org/doi/abs/10.1161/CIRCRESAHA.118.313533