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Motherhood may dilute effects of cocaine
U. MICHIGAN (US) — Mother rats respond much differently to cocaine than female rats that have never given birth, new research shows. The findings may help lay the groundwork for more tailored human...
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Just say no: Is going negative the wrong approach?
INDIANA U. (US) — Negative anti-drug messages—like the frying egg “This is your brain on drugs” campaign—may not be an effective way to reach people dealing with substance abuse, a study of brain...
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Racial bias linked to substance abuse
PURDUE (US) — Blacks who feel mistreated and discriminated against are more likely to abuse alcohol and illegal drugs, a new study reports.“It’s no surprise that people who believe they receive...
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Report: Prohibition fails in Mexico’s drug war
RICE (US) — Aggressive efforts to control violent drug cartels have clearly failed in Mexico’s war on drugs, according to an analysis by a public policy expert.A new report from the Baker Institute for...
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It’s easy for lonely rats to get addicted
U. TEXAS-AUSTIN (US) — Rats kept alone during their “teen” years are more likely to become addicted to amphetamines and alcohol—even after they reunite with peers.“Basically the animals become more...
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Rescue kits reduce opioid overdose deaths
BOSTON U. (US) — The rate of opioid overdose continues to rise, but a new intervention effort can significantly reduce deaths, experts report.In a study of communities in Massachusetts with high...
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Drug abuse rates higher in teens with ADHD
U. PITTSBURGH (US) — Adolescents with attention deficit hyperactivity disorder (ADHD) are more likely to have problems with substance abuse and cigarette use compared to teens without ADHD, research...
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Marijuana linked to risky sex for Russians with HIV
BOSTON U. (US) — Marijuana use by Russians with HIV who are considered “risky drinkers” is linked to an increase in other unsafe behaviors involving drug use and sex.Researchers say the new findings...
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How stress triggers drug relapse
BROWN / U. PENNSYLVANIA (US) — By identifying an exact region in the brains of rats, scientists were able to block a key step in the chain of events that causes stress-related drug relapse.The new...
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Drug blunts cocaine addiction in mice
JOHNS HOPKINS (US) — Neuroscientists trying to explain cocaine’s effects on the brain have stumbled onto a chemical compound that blocks cravings for the drug in addicted mice.The compound is already...
View ArticleHow one dose of cocaine rewires brain
After just one dose of cocaine, mice showed speedy growth of the twig-like structures that connect neurons and form the nodes of the brain’s circuit wiring. “Our images provide clear evidence that...
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Do cocaine addicts get high to escape the low?
People addicted to cocaine may become trapped in drug binges, getting high to get away from unbearable emotional lows, a new study with rats shows. The findings could lead to better understanding of...
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For teens, two kinds of cocaine are not the same
Powder cocaine and crack are usually reported together as “cocaine” use, despite having different effects and rates of negative consequences. Use of the two forms of the drug by high school seniors has...
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Teen marijuana use linked with schizophrenia
Heavy marijuana use as a teenager may cause changes in brain structure that resemble schizophrenia, new research shows. Teens who were heavy marijuana users—smoking it daily for about three years—had...
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US teens say they’ll give marijuana a try if it’s legal
A large number of high school students considered low-risk for marijuana use say they would try pot if it was legal. National support for marijuana (cannabis) legalization is increasing in the United...
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Army soldiers say ‘Spice’ is drug of choice
Researchers surveyed a group of active-duty US Army personnel who use illicit drugs and found that many preferred a synthetic marijuana called Spice, which is hard to detect in drug tests. Spice is...
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Cheap heroin replaces painkillers as drug of choice
A survey of more than 9,000 patients at drug treatment centers confirms an increase in heroin use as prescription painkillers become too expensive and difficult to buy. “In the past, heroin was a drug...
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Herpes blamed for rise in HIV among some drug users
HIV infection among heterosexual people who take drugs without injecting them has doubled during the last two decades in New York City, and researchers say herpes may be behind the increase. The...
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Daily marijuana use at 30-year high on campus
In 2013, 39 percent of American college students indicated they’d used an illicit drug in the preceding year—that’s up from 34 percent in the 2006 survey. Most of this increase is attributable to a...
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‘Magic’ mushrooms may turn smokers into quitters
A small number of long-time smokers were able to quit after carefully controlled experiences with the hallucinogen found in “magic mushrooms.” The smokers, who had failed many previous attempts to...
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