Navigation Links
Pot Can Mimic Brain Changes Seen in Schizophrenia

TUESDAY, Oct. 25 (HealthDay News) -- Marijuana causes disruptions in concentration and memory similar to those that occur in people with schizophrenia, according to a new study.

U.K. researchers measured the electrical activity from hundreds of neurons in the brains of rats given a drug that mimics the effects of cannabis, the psychoactive ingredient of marijuana.

The effects of the drug on individual brain regions were subtle but the drug completely disrupted the coordinated brain waves across the hippocampus and prefrontal cortex. Both of these brain structures are essential for memory and decision-making and play a key role in schizophrenia.

Due to the "decoupling" of the hippocampus and prefrontal cortex, the rats were unable to make accurate decisions while attempting to find their way through a maze, the University of Bristol researchers said.

"Marijuana abuse is common among sufferers of schizophrenia and recent studies have shown that the psychoactive ingredient of marijuana can induce some symptoms of schizophrenia in healthy volunteers. These findings are therefore important for our understanding of psychiatric diseases, which may arise as a consequence of 'disorchestrated brains' and could be treated by re-tuning brain activity," lead author Matt Jones said in a university news release.

The study appears Oct. 25 in the Journal of Neuroscience.

"These results are an important step forward in our understanding of how rhythmic activity in the brain underlies thought processes in health and disease," study first author Michal Kucewicz said.

More information

The U.S. National Institute on Drug Abuse has more about marijuana.

-- Robert Preidt

SOURCE: University of Bristol, news release, Oct. 25, 2011

Copyright©2010 ScoutNews,LLC.
All rights reserved

Page: 1

Related medicine news :

1. Tumors hide out from the immune system by mimicking lymph nodes
2. UCSF Transgenic Mouse Mimics Parkinson's Earliest Symptoms
3. MimicCreme Announces the Release of its Dairy-Free Whipping Cream - HealthyTop and Two New Flavored Coffee Creamers.
4. Viral protein mimic keeps immune system quiet
5. Psychopaths Lack of Empathy Mimics Brain Injury: Research
6. TV Reporters Severe Migraine Mimicked a Stroke
7. Researchers mimic bodys own healing potential to create personalised therapies for inflammation
8. Kids May Mimic How Parents Handle Pain
9. Deadly bacteria may mimic human proteins to evolve antibiotic resistance
10. Mimicking biological complexity, in a tiny particle
11. Gadgets not related to teenagers brain pain
Post Your Comments:
(Date:6/26/2016)... ... June 26, 2016 , ... PawPaws brand pet supplements ... that was developed to enhance the health of felines. The formula is all-natural and ... main herbs in the PawPaws Cat Kidney Support Supplement Soft Chews are ...
(Date:6/25/2016)... ... June 25, 2016 , ... The temporary closing of Bruton Memorial Library on June 21 due ... up a new, often overlooked aspect of head lice: the parasite’s ability to live away ... a common occurrence, but a necessary one in the event that lice have simply gotten ...
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van ... Wellness at Work award to iHire in recognition of their exemplary accomplishments in worksite ... 7th annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum ...
(Date:6/24/2016)... ... , ... Marcy was in a crisis. Her son James, eight, was out of control. Prone ... physically. , “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If ... at my other children and say he was going to kill them. If we ...
(Date:6/24/2016)... ... June 24, 2016 , ... Topical BioMedics, Inc, makers of Topricin and MyPainAway Pain Relief Products, ... minimum wage raise to $12 an hour by 2020 and then adjusting it yearly to ... value of the minimum wage, assure the wage floor does not erode again, and make ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... -- Research and Markets has announced the addition ... report to their offering. ... The World Market for Companion Diagnostics covers the world ... in the report includes the following: , ... by Region (N. America, EU, ROW), 2015-2020 , World ...
(Date:6/24/2016)...  Arkis BioSciences, a leading innovator in the ... cerebrospinal fluid treatments, today announced it has secured ... led by Innova Memphis, followed by Angel Capital ... Arkis, new financing will accelerate the commercialization of ... of its in-licensed Endexo® technology. ...
(Date:6/23/2016)... Research and Markets has announced ... Type (Organic Chemical (Sugar, Petrochemical, Glycerin), Inorganic Chemical), Functionality ... - Global Forecast to 2021" report to their ... global pharmaceutical excipients market is projected to reach USD ... in the forecast period 2016 to 2021. ...
Breaking Medicine Technology: