A new analysis of the entire genetic makeup of more than 53,000 people offers a bonanza of valuable insights into heart, lung, blood and sleep disorders, paving the way for new and better ways to treat and prevent some of the most common causes of disability and death.
The analysis from the Trans-Omics for Precision Medicine (TOPMed) program examines the complete genomes of 53,831 people of diverse backgrounds on different continents. Most are from minority groups, which have been historically underrepresented in genetic studies. The increased representation should translate into better understanding of how heart, lung, blood and sleep disorders affect minorities and should help reduce longstanding health disparities.
"The Human Genome Project has generated a lot of promises and opportunities for applying genomics to precision medicine, and the TOPMed program is a major step in this direction," said a genetics researcher who helped lead the project. "An important feature of TOPMed is not only publishing the genomic data on 53,000 people with massive amounts of data related to heart, lung, blood and sleep disorders but also the great diversity of the participants who donated their blood and data."
The groundbreaking work identified 400 million genetic variants, of which more than 78% had never been described. Nearly 97% were extremely rare, occurring in less than 1% of people. This sheds light on both how genes mutate and on human evolution itself, the researchers say.
Of the groups studied, people of African descent had the greatest genetic variability, the researchers found. The resulting data is the best ever produced on people of African ancestry, the scientists report in the prestigious journal Nature.
The work also offers important new insights into certain gene variants that can reduce people's ability to benefit from prescription drugs. This can vary by race and ethnic group.
https://newsroom.uvahealth.com/2021/04/01/scientists-scour-genes-of-53000-people-to-battle-dangerous-diseases/
https://www.nature.com/articles/s41586-021-03205-y
http://sciencemission.com/site/index.php?page=news&type=view&id=publications%2Fsequencing-of-53-831&filter=22
Sequencing of more than 53K diverse genomes
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