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:5/31/2016)... ... May 31, 2016 , ... Spartan Bioscience today introduced the ... and convenience. , The Cube is exceptionally small—it takes up the space of ... easily into any space, whether in a hospital, doctor’s office, or pharmacy. , ...
(Date:5/31/2016)... , ... May 31, 2016 , ... WaterField Designs, an ... professionals, announces the waxed-canvas and leather Duo Dopp Kit , the ideal gift ... or ballistic nylon, the Duo is smartly designed for Dad’s grooming routine. ...
(Date:5/31/2016)... , ... May 31, 2016 , ... Phynd Technologies, Inc. ... GA; Houston Methodist – Houston, TX and Shore Medical Center – Somers Point, NJ. ... three different, leading EHR solutions, demonstrating the breadth of Phynd’s solution and its interoperability. ...
(Date:5/31/2016)... ... May 31, 2016 , ... Advertising Age has recognized ... provider, for the tenth consecutive year as a Top 20 Marketing Services Agency. ... SourceLink ranked eighteenth in the “U.S. CRM/Direct Marketing Agency” category. , Recent ...
(Date:5/30/2016)... ... May 30, 2016 , ... ... inside of FCPX," said Christina Austin - CEO of Pixel Film Studios. ... within Final Cut Pro X. Choose from abstract transitions to more simple wipes ...
Breaking Medicine News(10 mins):
(Date:5/27/2016)... , May 27, 2016 LabStyle ... Dario™ Diabetes Management Tool, today announced that the Company,s Chief ... Marcum MicroCap Conference being held June 1-2 in ... being held June 7-9 in Los Angeles, CA. ... discuss recent corporate and operational milestones, including the U.S. FDA ...
(Date:5/27/2016)... 2016 Hutchison China MediTech ... on the highly lucrative global oncology and immunology ... potential first-in-class or best-in-class tyrosine kinase inhibitor (TKI) ... strategic partners. HCM,s profitable Chinese healthcare business continues ... expect progress of the mid-to-late-stage pipeline during 2016-17 ...
(Date:5/27/2016)... Amarantus BioScience Holdings, Inc. (OTCQX: AMBS), ... and Orphan Diseases, today announced that President & CEO Gerald ... SeeThru Equity MicroCap Conference   Where: ... , NY When: Tuesday, May 31 st , ... Where: Grand Hyatt Hotel, 109 East 42 nd St, ...
Breaking Medicine Technology: