#7%20-%20DNA%20Variant%20May%20Make%20Heavy%20Boozing%20a%20Team%20Sport

#7%20-%20DNA%20Variant%20May%20Make%20Heavy%20Boozing%20a%20Team%20Sport

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Home / News / Article By Bruce Bower Web edition : Friday, July 16th, 2010 DNA variant may make heavy boozing a team sport Carriers imbibed more around hard-drinking partners Here’s some not-so-sobering news for party people, barhoppers and clubgoers. Individuals who inherit a particular gene variant that tweaks the brain’s reward system are especially likely to drink a lot of alcohol in the company of heavy-boozing peers. That’s the preliminary indication of a new study directed by psychology graduate student Helle Larsen of Radboud University Nijmegen in the Netherlands. Adults carrying at least one copy of a long version of the dopamine D4 receptor gene, dubbed DRD4 , imbibed substantially more alcohol around a heavy-drinking peer than did others who lacked that gene variant, Larsen’s group reports in a paper published online July 7 in Psychological Science . “Carriers of the long gene may be more attuned to, and influenced by, another person’s heavy drinking than noncarriers are,” Larsen says. Her study provides the first evidence that a gene influences human alcohol use in social situations. Scientists have yet to decipher the precise brain effects of DRD4 ’s long form. Larsen hypothesizes that in the presence of heavy drinkers, the gene variant may increase dopamine activity in brain areas that amplify alcohol’s appeal as a rewarding social activity. “If this gene-environment interaction stands, and I don’t see why it shouldn’t, there is every reason to expect the effect would extend to drugs besides alcohol, as well to many motivated pursuits,” remarks biopsychologist Kent Berridge of the University of Michigan in Ann
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/05/2012 for the course COM 217 taught by Professor Na during the Fall '11 term at Purdue University-West Lafayette.

Page1 / 3

#7%20-%20DNA%20Variant%20May%20Make%20Heavy%20Boozing%20a%20Team%20Sport

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online