Parental Drug Use Linked to Offspring Addiction
(Ivanhoe Newswire)—A new study found marijuana use may actually impact the likelihood of addiction in future generations.
Researchers at the Icahn School of Medicine at Mount Sinai gave adolescent male rats an amount of THC (tetrahydrocannabinol), the primary psychoactive ingredient in marijuana, similar to about one joint in human use. These rats had never been exposed to THC before but their parents were exposed to THC as teens and then mated later in life. The results showed that the THC-exposed offspring worked harder to self-administer heroin by pressing a lever multiple times to get heroin infusion. Future studies are now being explored to determine whether THC effects continue to be transmitted to even the subsequent grandchildren and great-grandchildren generations.
“Finding increased vulnerability to drug addiction and compulsive behavior in generations not directly exposed is an important consideration for legislators considering legalizing marijuana,” study senior author Yasmin Hurd, Ph.D., was quoted as saying.
For more information, go to: http://www.nature.com/npp/journal/vaop/ncurrent/full/npp2013352a.html
SOURCE: Neuropsychopharmacology, January 2014
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