Navigation Links
Drug Use in Teens May Damage Memory Years Later

Young rats given amphetamines suffered short-term losses as adults, study finds

THURSDAY, Oct. 22 (HealthDay News) -- Rats develop memory loss in adulthood after receiving high doses of amphetamines during their "teen" years, new research shows.

Exposure to the drugs during adolescence has a more severe impact on short-term memory than being exposed as adults, researchers found in a study that was to be presented this week at the Society for Neuroscience annual meeting, in Chicago.

"Animals that were given the amphetamine during the adolescent time period were worse at tasks requiring working memory than adult animals that were given the same amount of amphetamine as adults," study co-author and psychology professor Joshua Gulley of the University of Illinois at Urbana-Champaign, said in a school news release. "This tells us that their working memory capacity has been significantly altered by that pre-exposure to amphetamine."

The researchers gave amphetamines to rats in two ways: Some were given a steady dose every other day, while others were given more and more over four days, followed by a "binge" consisting of big doses every two hours for eight hours on day five.

The findings could indicate what might happen to teenagers who take amphetamines either as a recreational drug or to treat attention-deficit/hyperactivity disorder, the study authors suspect. But until more research is completed, it won't be clear whether the rat tests accurately indicate what happens in humans.

Gulley noted that the research in rats suggests that teens who take amphetamines recreationally may be at the most risk because their doses are higher than those who take them as prescribed by doctors.

"Adolescence is a time when the brain is continuing to develop into its mature form, so drug exposure during this critical period could have long-lasting, negative consequences," he said. "Our findings reveal that adolescents are particularly sensitive to the adverse effects of amphetamine on cognitive function and that these effects can persist well after drug use is discontinued."

More information

Learn more about stimulants from the U.S. National Institute on Drug Abuse.

-- Randy Dotinga

SOURCE: University of Illinois at Urbana-Champaign, news release, Oct. 21, 2009

Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Hispanic Teens Take More Skin Cancer Risks
2. U.S. Teens Fall Short on Vaccine Coverage
3. Teens Cell Talk at Night Can Be Tiring
4. Teens who see more smoking in movies may have increased risk of becoming established smokers
5. Teens need to see their doctors more often
6. Smoking in Movies May Put Teens at Risk
7. Survey From The Partnership and MetLife Foundation Reveals Important Role Todays Grandparents Play in Teens Lives
8. Office-Based Medical Treatment and Internet Resources Are Potential Solution to Rising Painkiller Misuse Among Teens, Young Adults
9. Diageo Supports First Ever National We Dont Serve Teens Week
10. Prime Access Creates Groundbreaking Ads Targeting Urban Teens for the White Houses National Youth Anti-Drug Media Campaign
11. R rating might be unlikely to affect teens exposure to smoking in movies
Post Your Comments:
(Date:11/30/2015)... DC (PRWEB) , ... November ... ... Inc. (AIS) is pleased to announce the speakers for “Value-Based Payer-Provider Partnerships: ... lessons learned from three innovative value-based care arrangements: Essentia Health and UCare, ...
(Date:11/30/2015)... ... November 30, 2015 , ... ... around Novus’ TIGR® Matrix Surgical Mesh technology for soft tissue repair in the ... Matrix is a long-term resorbable surgical mesh intended to support and reinforce soft ...
(Date:11/30/2015)... Puerto Rico (PRWEB) , ... November 30, 2015 , ... ... active part of the San Juan Beauty Show held on November 8th and 9th ... was attended by media personalities, hair artists, renowned beauticians and top of the line ...
(Date:11/30/2015)... ... November 30, 2015 , ... ... are pleased to announce their strategic partnership at the Radiological Society of ... Service, Inc., and Winscribe, global providers of cutting-edge dictation and speech-enabled documentation ...
(Date:11/30/2015)... ... 30, 2015 , ... World Patent Marketing , a ... household invention that provides an economical and easy way of gaining customized curtains. ... at 2.6%," says Scott Cooper, CEO and Creative Director of World Patent Marketing. ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... Nov. 30, 2015   VolitionRx Limited (NYSE MKT: ... tests for a broad range of cancer types and other ... Micro Conference, which will be held December 1 - 3 in ... VolitionRx will be David Kratochvil , Chief Financial Officer ... Investor Relations. ® blood-based tests for colorectal ...
(Date:11/30/2015)... , November 30, 2015 PFE ... at up to 10 G protein-coupled receptor (GPCR) targets ... to research and develop potential new medicines directed at ... multiple therapeutic areas. --> Heptares Therapeutics ("Heptares"), ... and wholly-owned subsidiary of Sosei Group Corporation ("Sosei"; TSE ...
(Date:11/30/2015)... and REHOVOT, Israel , ... specialty pharmaceutical company focused on acquiring and developing innovative ... announced the appointment of Keith A. Katkin ... Gregory J. Flesher , chief executive officer for ... building successful organizations.  As chairman, he will be able ...
Breaking Medicine Technology: