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New Genes Linked To Longer Life Identified in Parents

New Genes Linked To Longer Life Identified in Parents

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  • Twenty-five genes which determine the number of living years of our mothers’ or fathers’ lifespan have been identified.
  • Eight genetic variants had already been linked to lifespan, mainly involved in heart disease and dementia.
  • New genes linked to parents’ lifespan could one day be targeted to help prolong human life.

Genetics, and how long our parental relatives lived, play a role in determining our lifespan as we carry similar genes.

A large-scale international study led by the University of Exeter Medical School has discovered new genes linked to parents' lifespan - which could one day be targeted to help prolong human life.


New Genes Linked To Longer Life Identified in Parents

How long we live is determined by a range of factors including our lifestyle and how well we treat factors including blood pressure and cholesterol from midlife. However, genetics, and how long our parental relatives lived, also plays a role. Now, the number of genes we know influence lifespan has expanded, potentially paving the way to new therapeutic targets to prolong life.

The study was funded by the Medical Research Council and conducted in collaboration with a number of US universities, undertook a genome-wide search for variants influencing how long participants' parents lived.

Genome Search For Longevity

The team studied 389,166 volunteers who took part in the UK Biobank, with confirmation in the US Health and Retirement Study and the Wisconsin Longitudinal Study. The DNA samples from the volunteers carry the genetics of their biological parents, to provide a practical way of studying exceptionally long lifespans.

Dr. Luke Pilling, who undertook most of the analyses said: "We have identified new pathways that contribute to survival, as well as confirming others. These targets, including inflammatory and cardiovascular pathways, offer potentially modifiable targets to reduce the risk of an earlier death and improve health."

  • Genes that regulate aging, especially those in the 'frozen' state that cells enter into after being damaged, played an important role.
  • Drugs targeting senescence have already been shown to extend life in laboratory animals.
  • Twenty-five genetic variants with some specific to mothers' or fathers' lifespan are identified in addition to the eight genetic variants involved in heart disease and dementia.
  • Genes related to inflammation and auto-immunity related genes were also prominent, opening up the possibility that precision anti-inflammatory treatments may one day be helpful in extending life.
  • A genetic risk score combining the top ten variants was statistically associated with parents being centenarians.
Lifestyle factors Also Count

The results confirm that many genetic variants combine to influence human lifespan: no single gene variant was found to be responsible. The study found evidence to suggest that the genetic variants for average lifespan also influence exceptionally long life expectancy.

Professor David Melzer, of the University of Exeter Medical School, who led the group said: "This study helps open the way to novel treatment, but the strong role for genes affecting heart disease risk again underlines the importance of controlling blood pressure and cholesterol levels throughout the lifespan. Of course, adopting healthy lifestyles is important, and can probably overcome the negative effects of most of the genes found so far."

  1. Luke C. Pilling, Chia-Ling Kuo, Kamil Sicinski, Jone Tamosauskaite, George A. Kuchel, Lorna W. Harries, Pamela Herd, Robert Wallace, Luigi Ferrucci, David Melzer. 'Human longevity: 25 genetic loci associated in 389,166 UK biobank participants.' Aging (2017). http:www.aging-us.com/article/101334/text.

  2. Source: Medindia

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