HOME >> MEDICINE >> NEWS
Study identifies possible mechanism for brain damage in Huntington's disease

Researchers from the MassGeneral Institute for Neurodegenerative Disease (MIND) have identified a possible mechanism underlying how the gene mutation that causes Huntington's disease (HD) leads to the degeneration and death of brain cells. In the Oct. 6 issue of Cell, they show that the abnormal form of the huntingtin protein, the product of the HD gene mutation, interferes with the production of a protein critical to cellular energy metabolism. The discovery is the first to bring together two processes believed to be involved in the pathology of HD the conversion of genetic information into proteins and the production of energy within cells.

"Our study indicates that these two pathogenic mechanisms are linked, in that disruption of gene transcription by mutant huntingtin leads to abnormal energy metabolism, which affects energy-dependent cellular processes and results in neurodegeneration," says Dimitri Krainc, MD, PhD, of MIND and the MGH Department of Neurology, who led the research team. "The role of mitochondria [subcellular structures that produce the cells' energy] in the process of nerve cell dysfunction and death is an emerging theme in neurodegenerative disorders, but the mechanism behind HD has been elusive."

HD causes the degeneration and death of cells in the basal ganglia an area deep within the brain particularly in a structure called the striatum. Although the precise function of the huntingtin protein is still unknown, recent studies have suggested that the mutant form directly interferes with transcription of neuronal genes. Evidence also has pointed to disruptions in cellular energy metabolism as key factors in HD. As a result, the MIND team focused on a protein called PGC-1a, which is known to regulate energy in cells throughout the body. Their previous research had shown that mice in which the PGC-1a gene had been knocked out developed brain lesions in the striatum.

To investigate the possible effect of th
'"/>

Contact: Sue McGreevey
smcgreevey@partners.org
617-724-2764
Massachusetts General Hospital
5-Oct-2006


Page: 1 2 3

Related medicine news :

1. Study, meta-analysis examine factors associated with death from heatstroke
2. Study says COPD testing is not measuring up
3. Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinsons symptoms
4. Study reveals gaps in vaccine financing for underinsured children
5. Study suggests nonpharmaceutical interventions may be helpful in severe influenza outbreaks
6. Study shows radiofrequency ablation highly effective in treating kidney tumors
7. Study says normal but out-of-control enzyme may be culprit that signals some cells to become cancer
8. Study finds HIV protease inhibitor drugs may adversely affect the scaffolding of the cell nucleus
9. Study outlines how stroke, head injury can increase risk of Alzheimers disease
10. Study identifies new regulator of fat metabolism
11. Study shows Diachrome improves blood sugar control in people with type 2 diabetes

Post Your Comments:
(Date:10/22/2014)... 22, 2014 Medical Solutions ... is happy to announce that our co-founder and ... Industry Analysts’ Staffing 100 for 2014. Anderson was ... most influential people in the staffing industry,” in ... the 13th-largest healthcare staffing company in the U.S., ...
(Date:10/22/2014)... Springfield, Va. (PRWEB) October 22, 2014 For ... way to make money; it’s an extension of her life’s ... her latest venture as the owner of FirstLight HomeCare, make ... , “It’s important to me that my work makes a ... always harbored an entrepreneurial spirit, so after much research, I ...
(Date:10/22/2014)... News) -- The United States is now mandating ... of West Africa land at one of five ... the virus. In a statement released Tuesday, ... percent of air passengers from Guinea, Liberia and ... five airports -- New York City,s Kennedy International ...
(Date:10/22/2014)... October 22, 2014 The ... which is dedicated to distribute health information technology ... delivery worldwide announced the development of six key ... expect when receiving healthcare. These are an expansion ... care: “providing care that is respectful of and ...
(Date:10/22/2014)... D.C. (PRWEB) October 22, 2014 With the ... a national survey by the American Institutes for Research (AIR) ... know how to use health insurance, but 42 percent say ... a plan’s details before signing up for coverage. , The ... with only 20 percent able to calculate correctly how much ...
Breaking Medicine News(10 mins):Health News:Medical Solutions Co-Founder/CFO Scott Anderson Named to Staffing Industry Analysts’ 2014 Staffing 100 2Health News:Medical Solutions Co-Founder/CFO Scott Anderson Named to Staffing Industry Analysts’ 2014 Staffing 100 3Health News:Dr. Iris Hunter to Host Grand Opening of FirstLight HomeCare Tomorrow 2Health News:Passengers From Ebola-Affected Countries Must Land at Designated U.S. Airports 2Health News:Passengers From Ebola-Affected Countries Must Land at Designated U.S. Airports 3Health News:The Sullivan Institute for Healthcare Innovation Announces Release of Guiding Principles for Patient Experience-Centered Care 2Health News:Many Americans Fail to Ask Basic Questions Before Signing Up for Health Insurance, National Survey Finds 2Health News:Many Americans Fail to Ask Basic Questions Before Signing Up for Health Insurance, National Survey Finds 3Health News:Many Americans Fail to Ask Basic Questions Before Signing Up for Health Insurance, National Survey Finds 4
(Date:10/20/2014)... 2014  Indianapolis interventional medical device maker ... -based 3D visualization leader Synaptive Medical ... Annual Meeting that they have joined forces to ... collaboration is the first of its kind and ... outcomes. NICO,s BrainPath® interventional access technology and Synaptive,s ...
(Date:10/20/2014)... , Oct. 20, 2014  ResMed (NYSE: ... the ResMed Data Exchange program, a comprehensive suite ... equipment (HME) and other health care providers. ... access to critical patient information. It integrates valuable ... and U-Sleep™ patient management platforms with customers, in-house ...
(Date:10/20/2014)... Oct. 20, 2014   BioNano Genomics announced today ... ability to collect human data at 30X depth, sufficient for ... This new capability was established and demonstrated for the IrysChip ... TM System and will be rolled out to ... will be showcasing this advancement at the American Society ...
Breaking Medicine Technology:Indianapolis' NICO Corporation and Toronto's Synaptive Medical, Inc. Announce First-Ever Intervention-Visualization Partnership with Goal to Improve Standard of Care in Neurosurgery 2Indianapolis' NICO Corporation and Toronto's Synaptive Medical, Inc. Announce First-Ever Intervention-Visualization Partnership with Goal to Improve Standard of Care in Neurosurgery 3Indianapolis' NICO Corporation and Toronto's Synaptive Medical, Inc. Announce First-Ever Intervention-Visualization Partnership with Goal to Improve Standard of Care in Neurosurgery 4Indianapolis' NICO Corporation and Toronto's Synaptive Medical, Inc. Announce First-Ever Intervention-Visualization Partnership with Goal to Improve Standard of Care in Neurosurgery 5ResMed Launches ResMed Data Exchange 2BioNano Genomics Announces One Human : One Chip : One Day 2BioNano Genomics Announces One Human : One Chip : One Day 3
Cached News: