HOME >> BIOLOGY >> NEWS
Imaging study links key genetic risk for Alzheimer's disease to myelin breakdown

A new UCLA imaging study shows that age-related breakdown of myelin, the fatty insulation coating the brain's internal wiring, correlates strongly with the presence of a key genetic risk factor for Alzheimer disease.

The findings are detailed in the January edition of the peer-reviewed journal Archives of General Psychiatry and add to a growing body of evidence that myelin breakdown is a key contributor to the onset of Alzheimer disease later in life.

In addition, the study demonstrates how genetic testing coupled with non-invasive evaluation of myelin breakdown through magnetic resonance imaging (MRI) may prove useful in assessing treatments for preventing the disease.

"Myelination, a process uniquely built up in humans, arguably is the most important and most vulnerable process of brain development as we mature and age. These new findings offer, for the first time, compelling genetic evidence that myelin breakdown underlies both the advanced age and the principal genetic risks for Alzheimer disease," said Dr. George Bartzokis, professor of neurology at UCLA's David Geffen School of Medicine.

"The human brain functions as a high-speed Internet system," said Bartzokis, director of the UCLA Memory Disorders and Alzheimer Disease Clinic and Clinical Core director of the UCLA Alzheimer Disease Research Center. "The quality of the brain's connections is key to its speed, bandwidth, fidelity and overall on-line capability."

Myelin is a sheet of lipid, or fat, with very high cholesterol content -- the highest of any brain tissue. The high cholesterol content allows myelin to wrap tightly around axons, speeding messages through the brain by insulating these neural "wire" connections.

As the brain continues to develop in adulthood and as myelin is produced in greater and greater quantities, cholesterol levels in the brain increase and eventually promote the production of a toxic protein that attacks the brain. The protein atta
'"/>

Contact: Dan Page
dpage@mednet.ucla.edu
310-794-2265
University of California - Los Angeles
2-Jan-2006


Page: 1 2

Related biology news :

1. FSU leads botanical research into 21st century: Deep South Plant Specimen Imaging Project
2. ESA POLinSAR 2007 -- Imaging forests in 3-D
3. Imaging techniques permit scientists to follow a day -- or 4 -- in the life of a cell
4. Imaging pinpoints brain regions that see the future
5. Brookhaven Lab and Mount Sinai form joint Center for Translational Biomedical Imaging
6. Imaging single molecules opens new way to study gene expression, protein production
7. SNM awards $25,000 Mallinckrodt Seed Grant in Molecular Imaging/Nuclear Medicine Research
8. Society of Nuclear Medicine announces collaborative working agreement with Bio-Imaging Technologies
9. Imaging goes 3-D: exquisite PET/CT image captures SNMs 2005 Image of the Year
10. New study warns limited carbon market puts 20 percent of tropical forest at risk
11. Clones on task serve greater good, evolutionary study shows

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


(Date:3/28/2017)... , March 28, 2017 ... Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video ... and Region - Global Forecast to 2022", published by ... in 2016 and is projected to reach USD 75.64 ... 2017 and 2022. The base year considered for the ...
(Date:3/24/2017)... MILAN , March 24, 2017 The Controller ... Deputy Controller Mr. Abdulla Algeen have received the prestigious international ... Continue Reading ... ... small picture) and Deputy Controller Abdulla Algeen (small picture on the right) ...
(Date:3/23/2017)... -- The report "Gesture Recognition and Touchless Sensing Market by Technology ... Forecast to 2022", published by MarketsandMarkets, the market is expected to be worth ... and 2022. Continue Reading ... ... ...
Breaking Biology News(10 mins):
(Date:4/27/2017)... 27, 2017  Pendant Biosciences, Inc. (formerly Nanoferix, Inc.), ... and drug delivery technologies, today announced that it has ... Toronto . Shawn ... Biosciences, noted, "We are excited to become part of ... and are honored to be the first ...
(Date:4/26/2017)... ... April 25, 2017 , ... LABS, Inc. (LABS) announced in ... to its extensive test menu: Nucleic Acid Testing (NAT) for ZIKV; and Enzyme Immunoassays ... able to offer NAT screening for blood donors under an Investigational New Drug (IND) ...
(Date:4/25/2017)... ... April 25, 2017 , ... As part of the Stago EdVantage ... laboratory testing for DIC in order to illuminate this clinical problem for people unfamiliar ... hospitalized patients resulting in a high degree of morbidity and mortality. DIC is a ...
(Date:4/25/2017)... ... 25, 2017 , ... Covalent Metrology has two ... unit provides high-quality data to clients, both faster and cheaper than competing ... are no price premiums, and customers are welcome to participate in the measurements ...
Breaking Biology Technology:
Cached News: