Navigation Links
Easily led 'ash-tray': Adolescent smokers prone to drug abuse
Date:12/11/2009

It is common knowledge that smoking is a health risk but why do teens become addicted to smoking more easily than adults? In an evaluation for Faculty of 1000 Biology, Neil Grunberg looks into why adolescents are more prone to substance abuse.

Grunberg describes the study, published by Natividad et al. in Synapse journal, as "fascinating" and suggests it "may have implications to help understand why adolescents are particularly prone to drug abuse".

Nicotine increases the level of dopamine in the brain, a neurotransmitter that is responsible for feelings of pleasure and wellbeing. The study looked at dopamine levels in adolescent and adult rats after nicotine withdrawal. The authors found that the withdrawal signs (physical and neurochemical) seen in adolescent rats were fewer than those observed in adults.

The study provides previously unknown mechanisms as to why there are differences in nicotine withdrawal between adolescent and adult rats. The key here, as stated by Grunberg, is "age alters [neurological] systems and interactions relevant to nicotine".

The reason that adolescents are prone to drug abuse (in this case, nicotine) is that they have increased sensitivity to its rewarding effects and do not display the same negative withdrawal effects as adults do, due to an underdeveloped dopamine-producing system.

Since rats are not subject to cultural influences, "rat studies of nicotine ... have provided valuable insights that have led to practical behavioural and pharmacological interventions", says Grunberg.

The results of this study may not stop at nicotine. Grunberg continues, "these findings might also be relevant to other addictive and abuse drugs".


'/>"/>

Contact: Steve Pogonowski
press@f1000.com
Faculty of 1000: Biology and Medicine
Source:Eurekalert

Page: 1

Related biology news :

1. Racial disparity in colon cancer survival not easily explained, UAB researchers say
2. Liposuction leftovers easily converted to IPS cells, Stanford study shows
3. A quicker, cheaper SARS virus detector -- one easily customizable for other targets
4. New computational technique allows comparison of whole genomes as easily as whole books
5. Human beta cells can be easily induced to replicate, according to study in Diabetes
6. Depression and anxiety disorders of adolescents are not the same thing
7. Study finds link between individual stress and adolescent obesity
8. Lab study shows THC exposure as adolescents linked to negative effects of THC as adults
9. Regular family meals result in better eating habits for adolescents
10. Study reveals specific gene in adolescent men with delinquent peers
11. Abuse of painkillers can predispose adolescents to lifelong addiction
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2017)... 2017 The report "Gesture Recognition and Touchless Sensing Market ... - Global Forecast to 2022", published by MarketsandMarkets, the market is expected to ... between 2017 and 2022. Continue Reading ... ... ...
(Date:3/22/2017)... NEW YORK , March 21, 2017 /PRNewswire/ ... Customer Marketing Cloud used by retailers such as ... in its platform — Product Recommendations and Replenishment. Using ... to give more personalized product and replenishment recommendations ... purchases, but also on predictions of customer intent ...
(Date:3/20/2017)... March 20, 2017 PMD Healthcare announces the ... and Wellness Management System (WMS), a remote, real-time lung ... 2010, PMD Healthcare is a Medical Device, Digital Health, ... dedicated to creating innovative solutions that empower people to ... intent focus, PMD developed the first ever personal spirometer, ...
Breaking Biology News(10 mins):
(Date:5/23/2017)... Toronto, Canada (PRWEB) , ... May 23, 2017 ... ... of Firmex FileSend, a cloud-based file transfer solution that makes it easy for ... firewall without having to worry about cumbersome FTP software or email file size ...
(Date:5/23/2017)... ... May 22, 2017 , ... ... in San Diego, California, this August will feature high-level speakers on quantum ... vehicles. , SPIE Optics and Photonics, the largest multidisciplinary optical sciences meeting in ...
(Date:5/23/2017)... (PRWEB) , ... May 23, 2017 , ... Cambridge ... a splash at this year’s Bio-IT World Conference and Expo in Boston ... Data Lake® 4.0 solution. The Anzo Smart Data Lake is also a finalist ...
(Date:5/21/2017)... CA (PRWEB) , ... May 19, 2017 , ... ... annual meeting and educational conference of the American Association of Bioanalysts (AAB) and ... Galleria Hotel in Houston. The conference reinforces AAB’s commitment to excellence in clinical ...
Breaking Biology Technology: