Navigation Links
A new development in the relief of spasms related to amyotrophic lateral sclerosis
Date:11/6/2012

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease with an occurrence rate in France similar to multiple sclerosis (two to three new cases per year for every 100,000 residents). It has a specific affect on neurons responsible for motor control, in particular motor neurones and central motor neurones. The former, located in the spinal cord, are directly linked to muscles and are used for muscle contraction and stretching. The latter, located in the brain, receive movement orders. As the disease develops, the neurons degenerate and the muscles are no longer stimulated and stop working. Movements, walking and speech become increasingly difficult and patients tend to pass away an average of two to five years after diagnosis, generally due to respiratory failure.

Paralysis is accompanied by other symptoms, which can be highly disabling on a daily basis. Spasms (or spasticity) are an exaggerated muscular response to a stimulus; they produce long and involuntary muscle contractions, coupled with pain. Spasticity is frequently observed in ALS. Until now, it was attributed to the loss of central motor neurons.

In this study, Inserm researchers have shown that these spasms are, in fact, linked to the degeneration of another type of serotonin-producing neurons located on the brain.

They have observed - both in patients with ALS and in a transgenic mouse model - that serotonergic neurons waste away as the disease develops and that serotonin levels in the spinal cord sharply decreased before the motor-related symptoms appeared.

Furthermore, some molecules active against serotonin receptors eliminate spasms in transgenic mice suffering from ALS. This research demonstrates that neuron degeneration in ALS is not limited to the motor system in its strictest sense. For Luc Dupuis "molecules acting on serotonin receptors 5-HT2B and C could be antispastic for ALS patients over the long-term".


'/>"/>
Contact: press
presse@inserm.fr
INSERM (Institut national de la sant et de la recherche mdicale)
Source:Eurekalert

Page: 1

Related medicine news :

1. 2 genetic deletions in human genome linked to the development of aggressive prostate cancer
2. Kudos for 3 NJIT Enterprise Development Center high-tech companies
3. 2 repressor genes identified as essential for placental development
4. Louisiana Tech University professor earns NSF Early Career Development grant
5. Advanced genetic screening method may speed vaccine development
6. New biospecimens management system in development
7. Developmental Woes Common in Siblings of Children With Autism
8. Mutations impair childhood growth and development by disrupting organization of chromosome pairs
9. Penn and Cornell researchers spearhead the development of new guidelines for veterinary CPR
10. Study sheds new light on role of genetic mutations in colon cancer development
11. The first day of development -- a window to successful pregnancy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/28/2016)... ... ... a half of planning the Multiple Pathways of Recovery Conference , CCAR is pleased ... held May 2 -4, 2016 at the Mystic Marriott Hotel & Spa . ... pathways individuals use to get into and sustain their recovery. Pathways of recovery are ...
(Date:5/27/2016)... ... May 27, 2016 , ... More than a third of American adults are ... bariatric surgery has received increased attention in recent years, as an article ... to weight loss, most people are familiar with the basic requirements of maintaining a ...
(Date:5/27/2016)... Newark, NJ (PRWEB) , ... May 27, 2016 , ... ... been named as YWCA Tribute to Women and Industry (TWIN) 2016 honorees. The ... to their workplace. For this year, Geri Boone, Director of the MLTSS (Managed Long-Term ...
(Date:5/27/2016)... ... May 27, 2016 , ... An influential resource amongst nurses and ... to shed lights on the variety of topics detailing why we appreciate nurses in ... why this career has gone from being in a major recession to one of ...
(Date:5/27/2016)... ... May 27, 2016 , ... This campaign aims to provide a path to ... society can control and change. , As nearly 795,000 Americans suffering from a new ... United States. Plus, with an estimated 129,000 of these people dying from stroke, it’s ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)...  Diana Russell suffers from a form of rheumatoid ... out.  This disease has put her in a wheelchair, ... grandchildren to leave her home.  Because of the size ... the wheelchair.  So if there is a family function, ... left to wait for the bus. Photo ...
(Date:5/24/2016)...  NxStage Medical, Inc. (Nasdaq: NXTM ), ... care, today announced that Jeffrey H. Burbank , ... schedule of investor conferences. Where applicable, a webcast of ... .   ... Friday, June 10, 2016 1:30 p.m. ET ...
(Date:5/24/2016)... Marziani has joined VMS BioMarketing as senior vice president of sales, announced Andrea ... Marziani will lead the company,s business development and sales team, exploring new opportunities for ... - http://photos.prnewswire.com/prnh/20160523/371089 ... ... ...
Breaking Medicine Technology: