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Study Finds Genetic Influence on African Americans’ Smoking

noviembre del 2013

A meta-analysis of 13 genome-wide association studies of African Americans’ smoking patterns confirms the significance of genetic variation in region 15q25.1. The analysis also tentatively implicates several genome locations that have not previously been associated with smoking behaviors.

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Naltrexone Implant Outperforms Daily Pill in Russian Trial

noviembre del 2013

More than half of heroin-addicted patients treated with naltrexone via an implanted delivery device maintained abstinence throughout a 6-month clinical trial in Saint Petersburg, Russia. The implant device, which releases a steady dose of naltrexone continuously for 2 months, averted relapse to heroin use three times as effectively as daily oral doses of the medication.

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Women Benefit From Policies To Prevent Teens From Buying Tobacco

noviembre del 2013

Women who reached their majority in states with policies that restricted teens’ access to tobacco products were less likely to smoke from ages 18-34 than women in states without those policies. The research did not demonstrate that the policies had a comparable impact on men’s smoking.

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NIDA Seeks Applications for Women and Sex/Gender Differences Junior Investigator Travel Awards for CPDD

noviembre del 2013

NIDA plans to provide $750 travel awards to 27 junior investigators to present their research on women or sex/gender differences in any area of drug abuse at the annual meeting of the College on Problems of Drug Dependence (CPDD) in San Juan, Puerto Rico, June 14‒19, 2014. Deadline to apply is December 2, 2013.

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Study Parses Comorbidity of Cannabis Use and Social Anxiety

octubre del 2013

People with cannabis use disorder (CUD) are likely also to have social anxiety disorder (SAD), and comorbid SAD is associated with greater severity of cannabis-related problems. These findings highlight the importance of assessing CUD patients for SAD, as that disorder can be both a contributing cause and a consequence of CUD. Treating both disorders may be a key to helping patients recover from each.

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Dr. Marilyn Huestis Q & A: Matching Drug Effects to Drug Concentrations

septiembre del 2013

Dr. Marilyn Huestis of NIDA’s Intramural Research Program talks about conducting research on drug effects with human subjects, developing tests to help law enforcement identify drugged drivers, and an assay to help identify children whose prenatal exposure to anti-HIV drugs may put them at risk for adverse developmental outcomes.

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Stimulants in “Bath Salts” Produce Effects Similar to MDMA

agosto del 2013

Mephedrone and methylone, two stimulants commonly found in designer drugs such as “bath salts,” act on the brain much like MDMA (Ecstasy).

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Early-Onset, Regular Cannabis Use Is Linked to IQ Decline

agosto del 2013

Regular cannabis use that starts in adolescence strips away IQ, a NIDA-supported study suggests. Participants who initiated weekly cannabis use before age 18 dropped IQ points in proportion to how long they persisted in using the drug. Persistent cannabis users’ cognitive difficulties were evident to friends and family and measurable on a battery of tests.

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Male Rats’ Cocaine Exposure Affects Their Offspring’s Drug Responses

agosto del 2013

In a surprising finding, male rats who used cocaine sired male offspring who later exhibited blunted responses to the drug. Researchers determined the cause was an epigenetic alteration.

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Study Pinpoints Cognitive Deficits Due to Cocaine, Finds Potential for Recovery

agosto del 2013

New research demonstrated that, in rhesus monkeys, ongoing cocaine exposure weakens two brain functions that people require for successful behavioral change: cognitive flexibility and memory. But the study determined that these changes may not be permanent.

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