HOME >> BIOLOGY >> NEWS
Genetic model for devastating form of paraplegia suggests new treatments

A new genetic model for a motor disorder that confines an estimated 10,000 people in the United States to walkers and wheelchairs indicates that instability in the microscopic scaffolding within a key set of nerve cells is the cause of this devastating disability. The study, which is published in the July 13 issue of the journal Current Biology, provides a provocative new insight into the molecular basis of the disease called hereditary spastic paraplegia (HSP) and suggests a new way to treat the inherited genetic disorder.

HSP--also known as familial spastic paraparesis and Strumpell-Lorrain syndrome--causes the ends of the nerves that control muscle activity to deteriorate. These nerve cells run from the brain's cerebral cortex to the spinal cord where they connect to "downstream" nerve cells that excite muscles throughout the body to control coordinated movement. HSP causes weakness, spasms and loss of function in the muscles in the lower extremities.

More than 20 genes have been linked to HSP. However, more than 40 percent of all cases have been traced to a single gene (SPG4) that produces an enzyme called spastin. Previous studies have shown that this enzyme interacts with microtubules, the tiny protein tubes that provide structural support and transport avenues within most cells. Microtubules are dynamic structures, continually growing and shrinking, and their stability is closely regulated by a number of associated proteins. In nerve cells, microtubules carry cellular components to distant regions of the cell, regulate the growth of cellular branches and provide a substrate for important protein interactions. All of these functions are critically dependent on dynamic changes in microtubule stability.

Researchers in the laboratories of Kendal Broadie at Vanderbilt University and Andrea Daga at the University of Padova, Italy, collaborated on the first studies of the role that spastin plays in nerve communication in a living organism. Th
'"/>

Contact: David F. Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
15-Jul-2004


Page: 1 2 3 4

Related biology news :

1. Genetic mutations linked to the practice of burning coal in homes in China
2. Genetic differences might help distinguish thyroid cancers
3. Genetic modification of linseed produces healthier omega 3 and 6 fatty acids
4. Wiley publishes Welcome to the Genome: A Users Guide to the Genetic Past, Present, and Future
5. Genetically modified bacterium as remedy for intestinal diseases
6. Genetic analysis rewrites salamanders evolutionary history
7. Genetic map of important tree genes outlined
8. Genetically-engineered marathon mouse keeps on running
9. Genetic clues found for common congenital brain disorder
10. Genetic mutation linked to more aggressive breast cancer found more often in African-Americans
11. Genetic discovery could dramatically reduce need for liver transplants in children

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/11/2017)... , Apr. 11, 2017 Research and ... Market 2017-2021" report to their offering. ... The global eye tracking market to grow at a ... report, Global Eye Tracking Market 2017-2021, has been prepared based on ... covers the market landscape and its growth prospects over the coming ...
(Date:4/11/2017)... , April 11, 2017 NXT-ID, ... security technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate ... ... NXT-ID, we look forward to their guidance and benefiting from ...
(Date:4/5/2017)... April 5, 2017  The Allen Institute for Cell ... Explorer: a one-of-a-kind portal and dynamic digital window into ... data, the first application of deep learning to create ... cell lines and a growing suite of powerful tools. ... these and future publicly available resources created and shared ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... TX (PRWEB) , ... October 11, 2017 , ... ... August compared the implantation and pregnancy rates in frozen and fresh in ... contribution of progesterone and maternal age to IVF success. , After comparing the ...
(Date:10/10/2017)... ... 2017 , ... Dr. Bob Harman, founder and CEO of VetStem Biopharma, ... The event entitled “Stem Cells and Their Regenerative Powers,” was held on ... DVM, MPVM was joined by two human doctors: Peter B. Hanson, M.D., Chief of ...
(Date:10/9/2017)... DIEGO , Oct. 9, 2017  BioTech ... biological mechanism by which its ProCell stem cell ... critical limb ischemia.  The Company, demonstrated that treatment ... amount of limbs saved as compared to standard ... the molecule HGF resulted in reduction of therapeutic ...
(Date:10/7/2017)... ... October 06, 2017 , ... With ... microscopy and surface analysis, Nanoscience Instruments is now expanding into Analytical Services. ... range of contract analysis services for advanced applications. Services will leverage techniques ...
Breaking Biology Technology:
Cached News: