Reality check: study finds far fewer genes truly linked to cerebral palsy
A study published in The American Journal of Human Genetics suggests that many genetic variants previously linked to cerebral palsy may not be the actual cause of the condition. Researchers found that only a small subset of the 515 candidate genes identified in past studies have sufficient statistical evidence to support a causal link.
Why it matters
Misidentifying genetic causes can lead to ineffective medical treatments and the misallocation of limited healthcare resources, particularly in resource-constrained systems like India.
The world’s most common childhood disability, cerebral palsy , has long been associated with birth complications like premature birth, infection, lack of oxygen, and perinatal stroke. But population studies suggest those factors account for only a fraction of cases. To fill this diagnostic void, modern medicine has routinely turned to gene sequencing to hunt for a root cause, and researchers have zeroed in on certain genetic variants in a substantial subset of children with cerebral palsy.
For families, gene sequencing offers a profound hope: of ending a gruelling diagnostic odyssey. Finding a definitive genetic root cause optimises patient management, reduces unnecessary testing, and finally gives parents concrete answers.
But a new study in The American Journal of Human Genetics suggests simply finding a pathogenic gene variant in a child is not proof that it caused their motor disability.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in