Featured Research

from universities, journals, and other organizations

Ecstasy associated with chronic change in brain function

Date:
May 4, 2011
Source:
Vanderbilt University Medical Center
Summary:
Ecstasy -- the illegal "rave" drug that produces feelings of euphoria and emotional warmth -- may have therapeutic value. Clinical trials are testing Ecstasy in the treatment of post-traumatic stress disorder. It's important, therefore, to define the impact of Ecstasy on brain function. Researchers report that recreational Ecstasy use is associated with a chronic change in brain function.

Ecstasy -- the illegal "rave" drug that produces feelings of euphoria and emotional warmth -- has been in the news recently as a potential therapeutic. Clinical trials are testing Ecstasy in the treatment of post-traumatic stress disorder.

Related Articles


But headlines like one in Time magazine's health section in February -- "Ecstasy as therapy: have some of its negative effects been overblown?" -- concern Ronald Cowan, M.D., Ph.D., associate professor of Psychiatry.

His team reports in the May issue of Neuropsychopharmacology that recreational Ecstasy use is associated with a chronic change in brain function.

"There's tension in the fields of psychiatry and psychotherapy between those who think Ecstasy could be a valuable therapeutic that's not being tested because of overblown fears, and those who are concerned about the drug's potentially harmful effects," Cowan said.

"We're not on one side or the other; we're just trying to find out what's going on in the brain -- is there any evidence for long-lasting changes in the brain?"

The message in news reports needs to be accurate, Cowan said. His team's studies suggest that the current message should be: "If you use Ecstasy recreationally, the more you use, the more brain changes you get."

Cowan and his colleagues examined brain activation during visual stimulation, using functional magnetic resonance imaging (fMRI), in subjects who had previously used Ecstasy (but not in the two weeks prior to imaging) and in subjects who had not previously used Ecstasy.

They found increased brain activation in three brain areas associated with visual processing in Ecstasy users with the highest lifetime exposure to the drug. The findings were consistent with the investigators' predictions based on results from animal models: that Ecstasy use is associated with a loss of serotonin signaling, which leads to hyper-excitability (increased activation) in the brain.

The hyper-excitability suggests a loss in brain efficiency, Cowan said, "meaning that it takes more brain area to process information or perform a task."

The investigators found that this shift in brain excitability did not return to normal in subjects who had not used Ecstasy in more than a year.

"We think this shift in cortical excitability may be chronic, long-lasting, and even permanent, which is a real worry," Cowan said, noting that the Ecstasy users in the study are young (18 to 35 years old). "The question is what will happen to their brains as they age over the next 60 years."

Cowan said that the pattern of hyper-excitability is similar to that observed in fMRI studies of individuals at risk for, or with early, Alzheimer's disease.

"I'm not saying that these people are at increased risk for dementia, but that there's a loss of brain efficiency in both recreational Ecstasy use and early Alzheimer's."

The findings suggest that brain hyper-excitability (increased activation in fMRI scans) may be a useful biomarker for Ecstasy-induced neurotoxicity, which the investigators will continue to study.

"Our goal is to be able to let people know whether or not the drug is causing long-term brain damage," Cowan said. "That's really critical because millions of people are using it."

The 2009 National Survey on Drug Use and Health estimated that 14.2 million individuals 12 years or older in the United States had used Ecstasy in their lifetime; 760,000 people had used Ecstasy in the month prior to being surveyed.

Cowan is also interested in determining the doses of Ecstasy that are toxic, and whether there are genetic vulnerabilities to toxicity. If clinical trials show that the drug has therapeutic benefits, it's critical to know the risks, he said.

The research was supported by the National Science Foundation, the National Institute on Drug Abuse, the National Institute of Mental Health, and the National Center for Research Resources.


Story Source:

The above story is based on materials provided by Vanderbilt University Medical Center. Note: Materials may be edited for content and length.


Journal Reference:

  1. Amy L Bauernfeind, Mary S Dietrich, Jennifer U Blackford, Evonne J Charboneau, James G Lillevig, Christopher J Cannistraci, Neil D Woodward, Aize Cao, Tristan Watkins, Christina R Di Iorio, Carissa Cascio, Ronald M Salomon, Ronald L Cowan. Human Ecstasy Use is Associated with Increased Cortical Excitability: An fMRI Study. Neuropsychopharmacology, 2011; 36 (6): 1127 DOI: 10.1038/npp.2010.244

Cite This Page:

Vanderbilt University Medical Center. "Ecstasy associated with chronic change in brain function." ScienceDaily. ScienceDaily, 4 May 2011. <www.sciencedaily.com/releases/2011/05/110503143512.htm>.
Vanderbilt University Medical Center. (2011, May 4). Ecstasy associated with chronic change in brain function. ScienceDaily. Retrieved February 26, 2015 from www.sciencedaily.com/releases/2011/05/110503143512.htm
Vanderbilt University Medical Center. "Ecstasy associated with chronic change in brain function." ScienceDaily. www.sciencedaily.com/releases/2011/05/110503143512.htm (accessed February 26, 2015).

Share This


More From ScienceDaily



More Mind & Brain News

Thursday, February 26, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Sleeping Too Much Or Too Little Might Increase Stroke Risk

Sleeping Too Much Or Too Little Might Increase Stroke Risk

Newsy (Feb. 26, 2015) People who sleep more than eight hours per night are 45 percent more likely to have a stroke, according to a University of Cambridge study. Video provided by Newsy
Powered by NewsLook.com
Mayor Says District of Columbia to Go Ahead With Pot Legalization

Mayor Says District of Columbia to Go Ahead With Pot Legalization

Reuters - News Video Online (Feb. 25, 2015) Washington&apos;s mayor says the District of Columbia will move forward with marijuana legalization, despite pushback from Congress. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Marijuana Nowhere Near As Deadly As Alcohol: Study

Marijuana Nowhere Near As Deadly As Alcohol: Study

Newsy (Feb. 25, 2015) A new study says marijuana is about 114 times less deadly than alcohol. Video provided by Newsy
Powered by NewsLook.com
Researchers Replace Damaged Hands With Prostheses

Researchers Replace Damaged Hands With Prostheses

Newsy (Feb. 25, 2015) Scientists in Austria have been able to fit patients who&apos;ve lost the use of a hand with bionic prostheses the patients control with their minds. 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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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