Featured Research

from universities, journals, and other organizations

Physical Frailty May Be Linked To Alzheimer's Disease

Date:
August 12, 2008
Source:
American Academy of Neurology
Summary:
Physical frailty, which is common in older persons, may be related to Alzheimer's disease pathology, according to a study published in the Aug. 12, 2008, issue of Neurology, the medical journal of the American Academy of Neurology.

Physical frailty, which is common in older persons, may be related to Alzheimer's disease pathology, according to a study published in the August 12, 2008, issue of Neurology®, the medical journal of the American Academy of Neurology.

For the study, researchers examined the brains of 165 people who had been participants in a larger community study of chronic diseases of aging. While participants were alive, physical frailty measurements were taken yearly including grip strength, time to walk eight feet, body composition and tiredness. After death, the brains of these participants were checked for the plaques and tangles that are signs of Alzheimer's disease pathology.

Of the participants in the study, 36 percent of the group had dementia, or showed signs of memory loss. "Interestingly, Alzheimer's disease pathology was associated with physical frailty in older persons both with and without dementia," said study author Aron S. Buchman, MD, with Rush University Alzheimer's Disease Center in Chicago and member of the American Academy of Neurology.

"The level of frailty was approximately two times higher in a person with a high level of AD pathology compared with a person with a low level of AD pathology," said Buchman. The results remained the same regardless of whether a person had a history of other diseases and regardless of their level of physical activity.

A previous study of the same group of participants while they were alive suggested that older people who are physically frail with no cognitive impairment appear to be at higher risk of developing Alzheimer's disease as compared to those who were less frail. "Together both of these studies suggest that frailty can be an early indicator of Alzheimer's disease pathology and may appear before memory loss."

"These findings raise the possibility that Alzheimer's disease may contribute to frailty or that frailty and Alzheimer's disease share a common cause. We theorize that the accumulation of these plaques and tangles in the brain could affect the areas of the brain responsible for motor skills and simple movements years before the development of dementia," Buchman said.

Studies show that about seven percent of people over age 65 are considered frail; that number jumps to 45 percent after age 85.

The study was supported by the National Institute on Aging, the Illinois Department of Public Health and the Robert C. Borwell Endowment Fund.

 


Story Source:

The above story is based on materials provided by American Academy of Neurology. Note: Materials may be edited for content and length.


Journal Reference:

  1. Aron S. Buchman, Julie A. Schneider, Sue Leurgans, and David A. Bennett. Physical frailty in older persons is associated with Alzheimer disease pathology. Neurology, 2008; 71 (7): 499 DOI: 10.1212/01.wnl.0000324864.81179.6a

Cite This Page:

American Academy of Neurology. "Physical Frailty May Be Linked To Alzheimer's Disease." ScienceDaily. ScienceDaily, 12 August 2008. <www.sciencedaily.com/releases/2008/08/080811195313.htm>.
American Academy of Neurology. (2008, August 12). Physical Frailty May Be Linked To Alzheimer's Disease. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2008/08/080811195313.htm
American Academy of Neurology. "Physical Frailty May Be Linked To Alzheimer's Disease." ScienceDaily. www.sciencedaily.com/releases/2008/08/080811195313.htm (accessed April 17, 2014).

Share This



More Health & Medicine News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Obama: 8 Million Healthcare Signups

Obama: 8 Million Healthcare Signups

AP (Apr. 17, 2014) — President Barack Obama gave a briefing Thursday announcing 8 million people have signed up under the Affordable Care Act. He blasted continued Republican efforts to repeal the law. (April 17) Video provided by AP
Powered by NewsLook.com
Is Apathy A Sign Of A Shrinking Brain?

Is Apathy A Sign Of A Shrinking Brain?

Newsy (Apr. 17, 2014) — A recent study links apathetic feelings to a smaller brain. Researchers say the results indicate a need for apathy screening for at-risk seniors. Video provided by Newsy
Powered by NewsLook.com
Could Even Casual Marijuana Use Alter Your Brain?

Could Even Casual Marijuana Use Alter Your Brain?

Newsy (Apr. 16, 2014) — A new study conducted by researchers at Northwestern and Harvard suggests even casual marijuana use can alter your brain. Video provided by Newsy
Powered by NewsLook.com
Thousands Of Vials Of SARS Virus Go Missing

Thousands Of Vials Of SARS Virus Go Missing

Newsy (Apr. 16, 2014) — A research institute in Paris somehow misplaced more than 2,000 vials of the deadly SARS virus. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins