This is the blog for GW students taking Human Evolutionary Genetics. This site is for posting interesting tidbits on: the patterns and processes of human genetic variation;human origins and migration; molecular adaptations to environment, lifestyle and disease; ancient and forensic DNA analyses; and genealogical reconstructions.

GWHEG figure

GWHEG figure

Tuesday, March 31, 2020

Epigenetics and Addiction

Drug Addiction News | The Recovery Village

Addiction, and abuse of addictive substances, fundamentally alters how the brain's reward pathway functions, causing altered behavior and lifestyle defining an "addict". However, the epigenetic mechanisms of how this occurs on a cellular/molecular level are incompletely characterized and understood. A recent paper by Hamilton and Nestler shows that epigenetic modifications, specifically histone modifications, are associated with addictive behavior. They also discuss neuroepigenetic editing as a means to identify the causal mechanisms that drive an addicted state. Altogether this research should help scientist understand what causes and defines an addictive state, as well as potentially providing useful therapies for recovering addicts. 

Ryan McRae Potluck 3/31/20

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