HOME >> MEDICINE >> NEWS
Gene linked to accelerated brain aging in healthy adults

ORLANDO, Fla. By studying a chemical marker in the brain that reflects the health of brain tissue, researchers at Duke University Medical Center have found new clues about why some people experience more rapid age-related brain changes than others.

The researchers have found an association between nerve cell changes associated with aging and the presence of a variation of the apolipoprotein gene known as apolipoprotein E4 (APOE4). This form is carried by approximately 25 percent of the population and has been linked to increased risk of Alzheimer's disease, cardiovascular disease and memory loss after head injury or bypass surgery.

Although the signs of age-related memory loss are widely recognized, researchers are still unsure why some elderly adults retain strong mental capacity well into their 90s while others fall into progressive decline or dementia.

"The frontal lobe is the site where the earliest and most consistent effects of aging occur in the brain," said P. Murali Doraiswamy, M.D., a psychiatrist at Duke and lead researcher on the study. "Virtually every mental symptom of normal aging results from decline in frontal lobe functions. When we examined this vital area of the brain by following a particular genetic marker, we found a single gene variation that can result in significant nerve cell changes associated with aging. Of the people we studied, those who carried the APOE4 gene experienced a more rapid loss of nerve cell functioning."

In other words, their brains showed signs of aging faster than those without the gene.

The research team was scheduled to present their findings today (Feb. 25, 2002) at the 15th annual meeting of the American Association for Geriatric Psychiatry in Orlando, Fla.

Doraiswamy's team decided to measure levels of N-acetylspartate (NAA), a brain chemical known to be closely associated to nerve cells, and hence to mental functions. This chemical is primarily found inside nerve cells within th
'"/>

Contact: Tracey Koepke
koepk002@mc.duke.edu
919-684-4148
Duke University Medical Center
25-Feb-2002


Page: 1 2 3

Related medicine news :

1. Study finds factors linked to substance use disorder relapse among health care professionals
2. Depression linked to insomnia in HIV patients
3. Abuse and HIV status linked to suicide risk
4. Waist size linked to diabetes risk in adult men
5. Is caesarean section linked to postnatal depression?
6. Infectious microorganism linked to kidney stones and other diseases
7. Migraine linked to risky heart health
8. Physical activity linked to protection from Parkinsons disease
9. Mothers exposure to air pollutants linked to chromosome damage in babies
10. Brain synapse formation linked to proteins, Stanford study finds
11. Infectious agent linked to mad cow disease found in organs other than the brain

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


(Date:10/13/2017)... Pekin, IL (PRWEB) , ... October 13, 2017 ... ... Foundation, which established the certification process to promote standards of excellence for the ... iaedp™ Symposium, scheduled for March 22 – 25, 2018 in Orlando, Florida at ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... (SOP) alumni Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, along ... updates for the primary prevention of cardiovascular diseases during the 15th Annual ...
(Date:10/13/2017)... ... 13, 2017 , ... Apple Rehab Shelton Lakes , which specializes in ... the facility as part of a disaster drill on October 3rd. , Apple Rehab ... City Emergency Manager, as well as the Connecticut Long Term Care Mutual Aid ...
(Date:10/13/2017)... ... ... The Visiting Nurse Association (VNA) of Somerset Hills is proud to host ... items from across the nation, this holiday-themed event will raise funds and awareness for ... The boutique will be open Saturday, November 4 (10:00 a.m. – 5:00 p.m.) ...
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th Annual Kids Fun Run ... This free event, sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed ... geared towards children of all ages; it is a non-competitive, non-timed event, which is ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... 28, 2017 Cohen Veterans Bioscience and Early ... of wearable and home sensors for real-time monitoring of ... Foundation, a nonprofit organization focused on disruptive health solutions ... affordable analytical system to record and integrate behavioral, cognitive, ... ...
(Date:9/25/2017)... PROVIDENCE, R.I. , Sept. 25, 2017 /PRNewswire/ ... immunogenicity assessment, vaccine design, and immune-engineering today announced ... focused on the development of personalized therapeutic cancer ... and has provided exclusive access to enabling technologies ... MSc Eng., MBA will lead EpiVax Oncology as ...
(Date:9/19/2017)... , Sept. 19, 2017 HistoSonics, Inc., a venture-backed medical device company developing ... of targeted tissues, announced three leadership team developments today:   ... ... ... Veteran medical device executive Josh Stopek ...
Breaking Medicine Technology:
Cached News: