Featured Research

from universities, journals, and other organizations

Neurotransmitter Defect May Trigger Autoimmune Disease

Date:
October 8, 2008
Source:
Rockefeller University Press
Summary:
A potentially blinding neurological disorder, often confused with multiple sclerosis, has now become a little less mysterious. A new study may have uncovered the cause of Devic's disease. The research could result in new treatment options for this devastating disease.

A potentially blinding neurological disorder, often confused with multiple sclerosis (MS), has now become a little less mysterious. A new study by researchers at the Mayo Clinic in Rochester, Minnesota, may have uncovered the cause of Devic's disease.

Their new study, which will appear online on October 6th in the Journal of Experimental Medicine, could result in new treatment options for this devastating disease.

Devic's disease, also known as neuromyelitis optica (NMO), results in MS-like demyelinating lesions along the optic nerves and spine. Affected individuals often experience rapid visual loss, paralysis, and loss of leg, bladder, and bowel sensation. Some lose their sight permanently. Unlike MS, Devic's disease can be diagnosed by the presence of a specific self-attacking immune protein—an autoantibody referred to as NMO-IgG—in the blood. Until now, however, clinicians didn't know how that protein damaged nerves and contributed to disease symptoms.

The Mayo team, lead by Dr. Vanda Lennon, now show that NMO-IgG sets off a chain of events that leads to a toxic build-up of a neurotransmitter called glutamate. NMO-IgG binds to a protein that normally sops up excess glutamate from the space between brain cells. When NMO-IgG is around, this sponge-like action is blocked, allowing glutamate to accumulate. And too much glutamate can kill the cells that produce myelin—the protein that coats and protects neurons. The authors suggest that glutamate-induced damage to nerve cells and their insulating myelin coats might account for the neurological symptoms associated with Devic's disease.

If the groups' results—generated using nerve cell cultures—are confirmed in vivo, drug development could be very straightforward. Therapeutic trials for glutamate blockers, created to treat other neurodegenerative diseases like Lou Gehrig's disease (or ALS), are already underway.


Story Source:

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


Cite This Page:

Rockefeller University Press. "Neurotransmitter Defect May Trigger Autoimmune Disease." ScienceDaily. ScienceDaily, 8 October 2008. <www.sciencedaily.com/releases/2008/10/081006102535.htm>.
Rockefeller University Press. (2008, October 8). Neurotransmitter Defect May Trigger Autoimmune Disease. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2008/10/081006102535.htm
Rockefeller University Press. "Neurotransmitter Defect May Trigger Autoimmune Disease." ScienceDaily. www.sciencedaily.com/releases/2008/10/081006102535.htm (accessed July 31, 2014).

Share This




More Mind & Brain News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Dieting At A Young Age Might Lead To Harmful Health Habits

Dieting At A Young Age Might Lead To Harmful Health Habits

Newsy (July 30, 2014) Researchers say women who diet at a young age are at greater risk of developing harmful health habits, including eating disorders and alcohol abuse. Video provided by Newsy
Powered by NewsLook.com
It's Not Just Facebook: OKCupid Experiments With Users Too

It's Not Just Facebook: OKCupid Experiments With Users Too

Newsy (July 29, 2014) If you've been looking for love online, there's a chance somebody has been looking at how you're looking. Video provided by Newsy
Powered by NewsLook.com
How Your Face Can Leave A Good Or Bad First Impression

How Your Face Can Leave A Good Or Bad First Impression

Newsy (July 29, 2014) Researchers have found certain facial features can make us seem more attractive or trustworthy. Video provided by Newsy
Powered by NewsLook.com
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

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