Navigation Links
Cell-surface sugar defects may trigger nerve damage in multiple sclerosis patients
Date:9/20/2007

Irvine, Calif., Sept. 20, 2007 Defects on cell-surface sugars may promote the short-term inflammation and long-term neurodegeneration that occurs in the central nervous system of multiple sclerosis patients, according to University of California, Irvine researchers.

The findings also suggest that a dietary supplement similar to glucosamine may be useful as an oral therapy to correct these defects and to treat both the short-term and the long-term symptoms of the disease. Study results appear on the online version of the Journal of Biological Chemistry.

The findings raise the possibility that these may both be treated by metabolic therapy, said Dr. Michael Demetriou, an assistant professor of neurology, and microbiology and molecular genetics. This is particularly important, as therapies are not currently available to treat neurodegeneration in MS.

In tests on mice, Demetriou found that genetic deficiencies in a process called protein glycosylation led to a spontaneous disease very similar to MS, including paralysis associated with inflammatory damage to the protective myelin coating on nerve cells and degeneration of axons and neurons. Protein glycosylation refers to the addition of specific sugars to proteins; virtually all cell-surface and secreted proteins have complex sugars attached to them.

MS is a two-stage disease, with initial attacks of inflammatory demyelination, which damages myelin, followed approximately 10 years later by a slow, progressive neurdegenerative phase marked by loss of axons and nerve cells.

The irreversible damage to the central nervous system induced by neurodegeneration in MS leads to long term disability, including paralysis, incoordination, dementia and pain, and is not targeted by currently available therapies.

Demetrious findings provide the first genetic model of MS in which both inflammatory demyelination and neurodegeneration arise from defects in a single biological pathway.

In previous studies, Demetriou found that the dietary supplement N-acetylglucosamine (GlcNAc), which is similar but more effective than the widely available glucosamine, corrected defects in protein glycosylation in cells and inhibited inflammatory demyelination in mice. The new study opens the possibility that metabolic therapy with GlcNAc may also prevent neurodegeneration. Studies in humans are required to assess the potential of this therapy in MS.


'/>"/>

Contact: Tom Vasich
tmvasich@uci.edu
949-824-6455
University of California - Irvine
Source:Eurekalert

Related medicine news :

1. Increase in sugar...decrease in brain function!!!
2. Testing for blood sugar levels made easier
3. Blood Sugar Linked to Deaths in ICU
4. Sugar Cravings
5. Effective Control Of Blood Sugar Levels
6. Sugar - Sweetened Drinks Found To Increase Risk of Diabetes
7. Diabetics Can Now Be Able To Control Both Blood Sugar And Their Weight
8. Elevated Blood Sugar Levels A Risk Factor Of Heart Disease
9. Better Control Of Sugar Levels
10. Link Between High Blood Sugar And Behavioral Changes
11. Herb Found To Be Effective In Controlling Blood Sugar Levels
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... , ... October 13, 2017 , ... ... the certification process to promote standards of excellence for the field of eating ... for March 22 – 25, 2018 in Orlando, Florida at the Omni Resort ...
(Date:10/13/2017)... ... 2017 , ... Many families have long-term insurance that covers care for a ... waiver for care if the client has a cognitive impairment diagnosis. , “What ... is often waived, so the benefits from their insurance start immediately,” said Mechell Vieira, ...
(Date:10/13/2017)... ... 2017 , ... Talented host, actor Rob Lowe, is introducing ... new episode of "Success Files," which is an award-winning educational program broadcasted on ... subject in-depth with passion and integrity. , Sciatica occurs when the sciatic nerve ...
(Date:10/12/2017)... ... October 12, 2017 , ... CitiDent and ... apnea using cutting-edge Oventus O2Vent technology. As many as 18 million Americans ... frequent cessation in breathing. Oral appliances can offer significant relief to about 75 ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... leader in post-acute health care, have expanded their existing home health joint venture ... , AccentCare has been operating a joint venture home health company with Asante, ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... -- AVACEN Medical , Inc. (AVACEN) announced that Frost ... Product Innovation Award for Its fibromyalgia pain management device. ... device market research by Frost & Sullivan,s industry experts. ... relief product, the AVACEN 100, offers a safe and effective ... ...
(Date:10/11/2017)... 11, 2017  BioPharmX Corporation (NYSE MKT: BPMX) researchers ... an innovative way to use nonlinear optical imaging to ... new drugs. ... will show how researchers from BioPharmX and the Wellman ... used a suite of imaging techniques in what is ...
(Date:10/11/2017)... , Oct. 11, 2017  Hill-Rom Holdings, Inc. ("Hill-Rom") ... Surgical facility in Las Piedras, Puerto Rico ... and blades. ... the facility sustained minor structural damage, temporary loss of ... Repairs have been completed, manufacturing operations have resumed, and ...
Breaking Medicine Technology: