Melbourne: Leading an active, extrovert life like that of a thrill seeker might lead to a life beyond 90s, a new study has found.A variation of a much-studied gene involved in transmission of dopamine, a key component of the brain’s reward-and-learning system, was found to be far more frequent among the very old, News.com.au reported.Professor Robert Moyzis of the University of California, Irvine, said that the variant might not extend lifespan directly.Instead, it appears to predispose those who bear it to a more vigorous lifestyle.The human subjects in the study came from Laguna Woods, part of a group involved in the Leisure World Cohort Study that began in 1981. It included people who were 90 or older in 2003.Most have since passed away, Prof Moyzis said.But their genes, as well as cell lines, live on, perpetuated in laboratories so they will be available for research.In this study, genetic samples from 310 people 90 years old or older were checked for the gene variant, known as the DRD4 7R allele.
Indian jawan`s beheading: Army Chief warns Pak
Modi, Kerry discuss defence, terrorism
Aamir Khan poses naked in `PK` poster
Trilokpuri mishap: E-rickshaw driver arrested