http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Rats that are socially isolated during a critical period of adolescence are more vulnerable to addiction to amphetamine and alcohol, found researchers at The University of Texas at Austin. Amphetamine addiction is also harder to extinguish in the socially isolated rats. http://medicalxpress.com/news/2013-01-socially-isolated-rats-vulnerable-addiction.html Neuroscience Wed, 23 Jan 2013 14:52:31 EST news278175137 Prior research has shown that sensitivity to the stimulating effects of alcohol and other drugs is a risk marker for heavy or problematic use of those substances. Prior research has also shown that the personality trait of negative emotionality can have an effect on substance use. A new study examining how the response to an amphetamine interacts with negative emotionality to influence alcohol and drug use has found that a high level of negative emotionality may lead to problem drinking when it occurs together with sensitivity to a drug-based reward. http://medicalxpress.com/news/2012-12-negative-emotionality-people-prone-alcohol.html Addiction Fri, 14 Dec 2012 16:00:14 EST news274696118 (HealthDay) -- A counterfeit version of the attention-deficit/hyperactivity disorder drug Adderall, sold online, contains the wrong active ingredients, according to the U.S. Food and Drug Administration. http://medicalxpress.com/news/2012-05-fda-fake-version-adhd-drug.html Attention deficit disorders Wed, 30 May 2012 11:20:01 EST news257591167 (AP) -- The first French trial has begun over a diabetes drug that was also used to lose weight and is suspected in the deaths of at least 500 people. http://medicalxpress.com/news/2012-05-french-trial-diabetes-diet-drug-scandal.html Medications Mon, 14 May 2012 09:35:17 EST news256206909 Secondary school-kids who use speed and ecstasy seem to be prone to subsequent depression, indicates research of almost 4000 teens published online in the Journal of Epidemiology and Community Health. http://medicalxpress.com/news/2012-04-ecstasy-linked-teen-depression.html Addiction Wed, 18 Apr 2012 18:30:01 EST news253981095 Until now, illicit drug use has not been common in older people. However, it is likely to become more common as generations that use drugs more frequently reach an older age. http://medicalxpress.com/news/2012-04-drug-year-olds-fold-england.html Addiction Thu, 05 Apr 2012 04:08:19 EST news252817685 (Medical Xpress) -- A new Australian drug study published today in The Lancet has found that cannabis is the most widely used illicit drug globally, while opioid use is a major cause of death. http://medicalxpress.com/news/2012-01-latest-global-snapshot-drug-related.html Health Fri, 06 Jan 2012 08:08:59 EST news245059730 The rapid emergence of synthetic new drugs, often sold online as "legal highs," represents a significant challenge for policy makers in the coming decade, a European Union drugs agency said Tuesday. http://medicalxpress.com/news/2011-11-eu-drugs-watchdog-legal-highs.html Health Tue, 15 Nov 2011 10:09:25 EST news240574157 (Medical Xpress) -- Amphetamine use in adolescence can cause neurobiological imbalances and increase risk-taking behaviour, and these effects can persist into adulthood, even when subjects are drug free. These are the conclusions of a new study using animal models conducted by McGill University Health Centre (MUHC) researcher Dr. Gabriella Gobbi and her colleagues. The study, published today in The International Journal of Neuropsychopharmacology, is one of the first to shed light on how long-term amphetamine use in adolescence affects brain chemistry and behaviour. http://medicalxpress.com/news/2011-11-adolescent-amphetamine-linked-permanent-brain.html Psychology & Psychiatry Thu, 03 Nov 2011 11:00:13 EST news239535778 People who abused methamphetamine or other amphetamine-like stimulants were more likely to develop Parkinson's disease than those who did not, in a new study from the Centre for Addiction and Mental Health (CAMH). http://medicalxpress.com/news/2011-07-parkinson-disease-methamphetamine-users.html Parkinson's & Movement disorders Tue, 26 Jul 2011 09:34:46 EST news230891666 Long-term relationships make the commonly abused drug amphetamine less appealing, according to a new animal study in the June 1 issue of The Journal of Neuroscience. The findings suggest that social bonds formed during adulthood lead to changes in the brain that may protect against drug abuse. http://medicalxpress.com/news/2011-06-steady-relationships-amphetamine-rewarding-effects.html Neuroscience Wed, 01 Jun 2011 03:32:49 EST news226117831