Genetic Changes Caused by Environmental Factors Linked to Suicide Risk

https://goo.gl/wzje7k

Researchers have linked genetic changes in the so-called CRH gene, which affects the regulation of the body’s stress system, to suicide risk and psychiatric illness. The study of epigenetic changes in the body’s hormone-based stress system has shown that stress-related changes in the CRH gene are linked to both serious suicide attempts in adults and psychiatric illness in adolescents.

Previous studies have indicated an overactive stress system in individuals with increased suicide risk. In the current study, researchers report that epigenetic changes in the CRH gene, which are linked to serious suicide attempts in adults, could also be found in adolescents with high risk of psychiatric illness.

Recently published research output shows that serious suicide attempts lead to a heavily reduced lifespan with an increased suicide risk and risk of mortality from natural causes particularly in adolescents. In the last ten years, it has become twice as common for Swedish adolescents between the ages of 10 and 17 to suffer from psychiatric illness. An alarming increase also in young adults can be seen. This according to a recently published report from the Swedish National Board of Health and Welfare.

“Our environment affects our genetic expression, which is usually referred to as epigenetic change. Even if we aren’t able to draw distinct parallels between the findings in these cohort studies, our results still point towards the importance of an optimal regulation of the stress system for psychiatric illness.”