Featured Research

from universities, journals, and other organizations

Possible Genetic Link To Schizophrenia Identified

Date:
February 9, 2007
Source:
Journal of Clinical Investigation
Summary:
Several neurological and psychiatric disorders, including schizophrenia, are associated with changes in the brain that affect nerves that communicate with each other using dopamine. One protein that is crucial for dopamine-mediated neuronal communication in animals is DARPP-32. Now, researchers have shown that the gene that encodes DARPP-32 in humans exhibits genetic variation and that one particular variant is associated with increased performance in a number of cognitive tests and with an increased risk of schizophrenia.

Several neurological and psychiatric disorders, including schizophrenia, alcoholism, and Parkinson's disease, are associated with changes in the brain that affect the nerves that communicate with each other through the naturally-produced chemical dopamine.

One protein that is crucial for dopamine-mediated neuronal communication in animals is DARPP-32. However, very little is known about the function of this protein in humans.

In a study appearing online on February 8 in advance of publication in the March print issue of the Journal of Clinical Investigation, Daniel Weinberger and colleagues from the National Institutes of Health show that the gene that encodes DARPP-32 exhibits genetic variation.

One particular variant that increased expression of the mRNA encoding DARPP-32 in the brain was associated with increased performance in a number of cognitive tests, including IQ and memory tests. This variant was also associated with changes in the structure and function of part of the brain known as the neostriatum, as well as changes in the ability of the neostriatum to communicate with the frontal lobe.

Importantly, preliminary analysis indicated that this variant was associated with an increased risk of schizophrenia, although further studies will be necessary to confirm this association.


Story Source:

The above story is based on materials provided by Journal of Clinical Investigation. Note: Materials may be edited for content and length.


Cite This Page:

Journal of Clinical Investigation. "Possible Genetic Link To Schizophrenia Identified." ScienceDaily. ScienceDaily, 9 February 2007. <www.sciencedaily.com/releases/2007/02/070208230130.htm>.
Journal of Clinical Investigation. (2007, February 9). Possible Genetic Link To Schizophrenia Identified. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2007/02/070208230130.htm
Journal of Clinical Investigation. "Possible Genetic Link To Schizophrenia Identified." ScienceDaily. www.sciencedaily.com/releases/2007/02/070208230130.htm (accessed July 28, 2014).

Share This




More Mind & Brain News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Losing Sleep Leaves You Vulnerable To 'False Memories'

Losing Sleep Leaves You Vulnerable To 'False Memories'

Newsy (July 27, 2014) A new study shows sleep deprivation can make it harder for people to remember specific details of an event. Video provided by Newsy
Powered by NewsLook.com
University Quiz Implies Atheists Are Smarter Than Christians

University Quiz Implies Atheists Are Smarter Than Christians

Newsy (July 25, 2014) An online quiz from a required course at Ohio State is making waves for suggesting atheists are inherently smarter than Christians. Video provided by Newsy
Powered by NewsLook.com
Beatings and Addiction: Pakistan Drug 'clinic' Tortures Patients

Beatings and Addiction: Pakistan Drug 'clinic' Tortures Patients

AFP (July 24, 2014) A so-called drugs rehab 'clinic' is closed down in Pakistan after police find scores of ‘patients’ chained up alleging serial abuse. Duration 03:05 Video provided by AFP
Powered by NewsLook.com
New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins