peperonity Mobile Community
Welcome, guest. You are not logged in.
Log in or join for free!
 
New to peperonity.com?
Your username allows you to login later. Please choose a name with 3-20 alphabetic characters or digits (no special characters).

IMPORTANT: Choose your name WISELY as you cannot change it later on! This is due to the fact that we will submit your pages to major search engines so that they can be found properly. 
Please enter your own and correct e-mail address and be sure to spell it correctly. The e-mail adress will not be shown to any other user. 
This password protects your account. To avoid typos it must be entered twice. Please enter 5-20 alphabetic characters or digits (no special characters). Choose a password that is not easy to guess! Never disclose your password to anyone. 
This password protects your account. To avoid typos it must be entered twice. Please enter 5-20 alphabetic characters or digits (no special characters). Choose a password that is not easy to guess! Never disclose your password to anyone. 
Stay logged in
Enter your username and password to log in. Forgot login details?

Username 
CAUTION: Do not disclose your password to anybody! Only enter it at the official login of peperonity.com. We will never ask for your password in a message! 
Login
Stay logged in

Share photos, videos & audio files
Create your own WAP site for free
Get a blog
Invite your friends and meet people from all over the world
All this from your mobile phone!
For free!
Get started!

You can easily invite all your friends to peperonity.com. When you log in or register with us, you can tell your friends about exciting content on peperonity.com! The messaging costs are on us.
Meet our team member Marzus and learn how to create your own mobile site!

Drug Addicts And Their Non-addicted Siblings Share Features In...



 - Drug Addicts And Their Non-addicted Siblings Share Features In The Brain Wallpaper Newest pictures
03.02.2012 08:49 EST
Drug Addicts And Their Non-addicted Siblings Share Features In The Brain
Drug addicts and their non-addicted siblings share certain features in the brain, suggesting a susceptibility to addiction is inherited but is also a flaw that can be overcome, scientists said on Thursday.
Researchers who scanned thebrains of 50 pairs of brothersand sisters of whom one was a cocaine addict found that both siblings had brain abnormalities that make it more difficult for them to exercise self-control.
The findings increase understanding of why some people with a family history ofdrug abuse have a higher risk of addiction than others and could point to new treatments to help vulnerable people learn how take control before addictions set in. "If wecould get a handle on what makes unaffected relatives ofaddicts so resilient we might be able to prevent a lot of addiction from taking hold," said Paul Keedwell a consultant psychiatrist at Britain's Cardiff University, who was not involved in the research but was encouragedby its findings.
Good data on addiction is hardto gather since many drug abusers and alcoholics exist on the margins of society, butthe World Health Organizationestimates that at least 15.3 million people worldwide have drug use disorders. It says atleast 148 countries report problems with injected drug use.
A study in the Lancet medical journal in January said that as many as 200 million people use illicit drugs worldwide each year, with use highest inwealthy countries.
Unhealthy addictions can also range from narcotics and prescription medicines to legalsubstances like cigarettes and alcohol and lifestyle factors such as over-eating or gambling.
Scientists have noticed brain differences in drug addicts before, but as yet they were not sure whether those differences came before the drug use, or were as a resultof it.
Karen Ersche of the Behavioral and Clinical Neuroscience Institute at Britain's Cambridge Universityled a team of researchers who got around this problem by studying pairs of biologicalsiblings one addicted and one with no history of chronic drug or alcohol abuse and comparing both siblings' brains to those of other healthy people.
Their results, published in thejournal Science, showed that both addict and non-addict siblings shared the same abnormality in the parts of thebrain linked to controlling behavior regions known as the fronto-striatal systems.
"It has long been known that not everyone who takes drugs becomes addicted, and that people at risk of drug dependence typically have deficits in self-control," said Ersche. "Our findings now shed light on why the risk of becoming addicted to drugs is increased in people with a family history: Parts of their brains underlying self-controlabilities work less efficiently.
Ersche said the next step would be to explore how the siblings who don't take drugs manage to overcome their brain abnormality, so scientists can better understand what protects them from drug abuse. This may provide vital clues for developing more effective therapies against addiction.
Asked to comment on the study, Derek Hill, a professor of Medical Imaging Science at University College London, said it was a "clearly designed" piece of research which showed that this sort ofbrain scanning might be used to find so-called biomarkers to help develop new treatments for other self-control-related conditions such as over-eating.
"Unfortunately, it takes yearsto develop an imaging method like this to the level of maturity needed to help develop new treatments, so practical benefits are some way in the future," he said.


This page:





Help/FAQ | Terms | Imprint
Home People Pictures Videos Sites Blogs Chat
Top