Navigation Links
Researchers identify potential biomarker for AD
Date:7/28/2014

(Boston)-- Researchers from Boston University School of Medicine (BUSM) report variants in a new gene, PLXNA4, which may increase the risk of developing Alzheimer's disease (AD). The discovery of this novel genetic association may lead to new drug treatment options that target PLXNA4 specifically. These findings appear in the Annals of Neurology.

AD is the most frequent age-related dementia affecting 5.4 million Americans including 13 percent of people age 65 and older, and more than 40 percent of people age 85 and older. Genetic factors account for much of the risk for developing AD with heritability estimates between 60 percent and 80 percent. However much of the genetic basis for the disease is unexplained. Less than 50 percent of the genetic contribution to AD is supported by known common genetic variations.

Using data from the Framingham Heart Study, the researchers obtained strong evidence of an association with several single nucleotide polymorphism in PLXNA4, a gene which had not been previously linked to AD. They then confirmed this finding in a larger dataset from the Alzheimer's Disease Genetics Consortium and other datasets. Next, they performed a series of experiments in models that pinpointed the mechanism by which this gene affects AD risk. "Importantly, this is one of few single studies which go from gene finding to mechanism," explained corresponding author Lindsay Farrer, PhD, Chief of Biomedical Genetics and professor of medicine, neurology, ophthalmology, epidemiology and biostatistics at BUSM.

According to the researchers a form of the protein encoded by this gene promotes formation of neurofibrillary tangles consisting of decomposed tau protein, one of the two pathological hallmarks of the disease. "We showed that PLXNA4 affects the processing of tau as it relates to neurofibrillary tangles, the primary marker of AD. Most drugs that have been developed or that are in development for treating AD are intended to reduce the toxic form of beta-amyloid, a sticky substance that accumulates in the brain of persons with AD, and none have been very effective. Only a few drugs have targeted the tau pathway," added Farrer.


'/>"/>

Contact: Gina DiGravio
gina.digravio@bmc.org
617-638-8480
Boston University Medical Center
Source:Eurekalert

Related medicine news :

1. BU researchers discover that Klotho is neuroprotective against Alzheimers disease
2. Researchers discover new way to determine cancer risk of chemicals
3. A world first: Researchers identify a treatment that prevents tumor metastasis
4. Researchers unlock the protein puzzle
5. Communication about female condom vital to young adults, UT Arlington researchers say
6. Feinstein Institute researchers identify brain network
7. CNIO researchers discover a gene that links stem cells, ageing and cancer
8. University of Houston researchers create new method to draw molecules from live cells
9. Researchers Spot Potential New Culprit Behind Alzheimers
10. Researchers demonstrate health risks posed by third hand tobacco smoke
11. Chinese researchers describe impaired self-face recognition in those with major depressive disorder
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/21/2017)... ... 21, 2017 , ... With ProSlideshow Portrait from Pixel Film Studios creating a ... select from up to two layers of subject matter along with fully customizable backdrop ... Final Cut Pro X. , With ProSlideshow Portrait each user are given ...
(Date:9/21/2017)... Falls Church, VA (PRWEB) , ... September 21, ... ... **An FDAnews Webinar**, Sept. 26, 2017 — 1:30 p.m. – 3:00 p.m. ET, ... exacting business. It’s easy to get things wrong, run afoul of The Quality ...
(Date:9/21/2017)... Angeles, CA (PRWEB) , ... September 21, 2017 ... ... a lunch and learn with Infinity Behavioral Health Services for professionals in the ... in a Commercial Payer Audit . , Insurance companies and state and ...
(Date:9/21/2017)... IL. (PRWEB) , ... September 21, 2017 , ... ... results released today of a new member survey conducted by the International ... restoration procedures performed from 2014 to 2016 rose 60 percent, with 635,189 procedures ...
(Date:9/21/2017)... ... September 21, 2017 , ... Bill Howe Plumbing’s mission is to create an ... to the community. For over 37 years, they have operated with their mission at ... in San Diego. They were chosen as the Best San Diego plumber in ...
Breaking Medicine News(10 mins):
(Date:9/7/2017)... 7, 2017 Caris Life Sciences, a ... the promise of precision medicine, today announced results ... of its molecular profiling approach in guiding therapeutic ... profiling plus (CGP+) with Caris Molecular Intelligence ® ... a molecular level, leading to more therapeutic options ...
(Date:9/6/2017)... TORONTO , Sept. 6, 2017 /PRNewswire/ ... new knowledge and skills while treating their ... for hands-on experience without involving patients. Simulation ... skills. Clinicians can carry out procedures, refine ... at risk. Integration of new technology, such ...
(Date:9/5/2017)... 5, 2017  Xyntek Inc. has announced another milestone in their continued growth ... to meet the growing demands of customer engagements regionally.  ... Xyntek's new Midwest office is located at 318 West Adams Street, Suite ... Xyntek's ... ...
Breaking Medicine Technology: