Navigation Links
Damaged protein identified as early diagnostic biomarker for Alzheimer's disease in healthy adults
Date:2/23/2010

Researchers at NYU School of Medicine have found that elevated cerebrospinal fluid levels of phosphorylated tau231 (P-tau231), a damaged tau protein found in patients with Alzheimer's disease, may be an early diagnostic biomarker for Alzheimer's disease in healthy adults.

The study published this month online by Neurobiology of Aging shows that high levels of P- tau231 predict future memory decline and loss of brain gray matter in the medial temporal lobe- a key memory center. Prior studies found the medial temporal lobe to be the most vulnerable brain region in the early stages of Alzheimer's disease accumulating damaged tau proteins in the form of neurofibrillary tangles. Tangles are one of the signature indicators of Alzheimer's disease, in addition to beta amyloid plaques.

"Our research results show for the first time that elevated levels of P-tau 231 in normal individuals can predict memory decline and accompanying brain atrophy," said lead author Lidia Glodzik MD, PhD, assistant research professor, Department of Psychiatry at the Center for Brain Health and Center of Excellence on Brain Aging at NYU School of Medicine. "Our findings suggest that P-tau231 has the potential to be an important diagnostic tool in the pre-symptomatic stages of Alzheimer's disease."

Researchers evaluated 57 cognitively healthy older adults and studied the relationships between baseline cerebrospinal fluid biomarkers, longitudinal memory performance and longitudinal measures of the medial temporal lobe gray matter using Magnetic Resonance Imaging, or MRI. Two years later, researchers found that 20 out of 57 healthy adults showed decreased memory performance. The group with worsened memory had higher baseline levels of P-tau231 and more atrophy in the medial temporal lobe. The higher P-tau231 levels were associated with reductions in medial temporal lobe gray matter. Authors concluded that elevated P-tau231 predicts both memory decline and medial temporal lobe atrophy.

"Indentifying people at risk for Alzheimer's disease is the necessary first step in developing preventive therapies," said co-author Mony de Leon, EdD, professor, Department of Psychiatry and director of the Center for Brain Health at the Center of Excellence on Brain Aging at NYU School of Medicine and Research Scientist at the Nathan S. Kline Institute for Psychiatric Research. "This study shows that Alzheimer's disease pathology may be recognized in the normal stages of cognition.This observation may be of value in future studies investigating mechanisms that cause or accelerate dementia".


'/>"/>

Contact: Lauren Woods
lauren.woods@nyumc.org
212-404-3753
NYU Langone Medical Center / New York University School of Medicine
Source:Eurekalert

Related medicine news :

1. Beyond liver transplants: Acutely damaged livers may be repaired via transplanted hepatocytes
2. PADF-OAS to Focus on 2 Heavily Damaged Areas in Haiti
3. Introducing D-Psoria, the First Cosmeceutical Products for the Relief of the Redness, Scaling, and Flaking of Severely Damaged Skin
4. Nerve-cell transplants help brain-damaged rats fully recover lost ability to learn
5. Adult Stem Cells Can Repair Damaged Heart
6. Injection May Heal Damaged Heart
7. DNA-damaged cells communicate with neighbors to let them know theyre in trouble
8. Study identifies potential fix for damaged knees
9. BRIT1 allows DNA repair teams access to damaged sites
10. Prominent Farmington Hills Plastic Surgeon Suggests Methods to Repair Skin Damaged by Sun Exposure
11. All Persons Who Purchased or Acquired the Common Stock of Sunrise Senior Living, Inc. (Sunrise) Between February 26, 2004 and July 28, 2006, Inclusive, and Were Damaged Thereby (The Class)
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/5/2016)... ... May 05, 2016 , ... Phycologia ... A (UV-A) for photosynthesis, researchers Juntian Xu and Kunshan Gao tested the magnitude ... pair observed that when photosynthetically active radiation (i.e. the white light in our ...
(Date:5/5/2016)... , ... May 05, 2016 , ... ... organization, announces McLaughlin & Smoak Benefits as the latest addition to its family ... has a dedicated team of compliance, wellness, human resources, and health care consumerism ...
(Date:5/5/2016)... , ... May 05, 2016 , ... ... compensation laws in all U.S. states and certain Canadian provinces is now available ... Workers Compensation Research Institute (WCRI). , The report, Workers’ Compensation Laws ...
(Date:5/5/2016)... ... ... A recent survey by the Midwest Business Group on Health ... use the free preventive care benefits available to them as part of the Affordable ... public and private employers, MBGH found that only 10% of large employers are aware ...
(Date:5/5/2016)... TX (PRWEB) , ... May 05, 2016 , ... Vitenas ... AIA/AAH Healthcare Design Awards, presented by the American Institute of Architects and the Academy ... designed by the renowned Perkins+Will and Harrell Architects, opened to patients in October of ...
Breaking Medicine News(10 mins):
(Date:5/3/2016)... 2016  As a teenager, an active and athletic ... damaged his heart. He continued enjoying sports and recreation ... Shepherd,s heart was giving out and he was a ... 2013, the Mesa, Arizona resident ... a heart transplant, the SynCardia TAH-t is the only ...
(Date:5/3/2016)... 3, 2016  While you may be familiar with watching a film or TV show in ... ultra-high-definition or 8MP in the Medical Industry.  Ampronix  is a renowned authorized reseller of the ... Photo - http://photos.prnewswire.com/prnh/20160502/362730 ... ... ...
(Date:5/3/2016)... -- Pharmaceutical giant Johnson & Johnson has ... who says its talc-based powder products caused ovarian cancer. ... $5 million in compensatory damages and $50 million in ... ) , This is the second in ... the same court awarded $72 million to the family ...
Breaking Medicine Technology: