The Impact of Genetics on Physical Resilience and Successful Aging

J Aging Health. 2015 Sep;27(6):1084-104. doi: 10.1177/0898264315577586. Epub 2015 Mar 27.

Abstract

Objective: To better understand the impact of genetics on resilience and successful aging, we tested a model of successful aging.

Method: This was a descriptive study with a single interview and blood draw done with residents in a continuing care retirement community. Five genes associated with resilience were included in the model. The hypothesis was tested using structural equation modeling.

Results: A total of 116 participants completed the survey. Two SNPs from SLC6A4 (rs25533 and rs1042173) and age were the only variables associated with physical resilience and explained 9% of the variance. Cognitive status, age, and depression were directly associated with successful aging; variance in rs25532 or rs1042173, resilience, and pain were indirectly associated with successful aging through depression.

Discussion: Continued research to replicate these findings is needed so as to be able to recognize older adults at risk of low physical resilience and implement appropriate interventions.

Keywords: genetics; geriatrics; resilience.

MeSH terms

  • Age Factors
  • Aged
  • Aged, 80 and over
  • Aging / genetics*
  • Aging / physiology
  • Aging / psychology
  • Cognition / physiology
  • Depression / genetics
  • Female
  • Health Surveys
  • Humans
  • Male
  • Models, Biological
  • Polymorphism, Single Nucleotide / physiology*