Featured Research

from universities, journals, and other organizations

High blood pressure in middle age vs old age may predict memory loss

Date:
November 13, 2013
Source:
American Academy of Neurology (AAN)
Summary:
People in middle age who have a high blood pressure measure called pulse pressure are more likely to have biomarkers of Alzheimer’s disease in their spinal fluid than those with lower pulse pressure, according to research published.

People in middle age who have a high blood pressure measure called pulse pressure are more likely to have biomarkers of Alzheimer's disease in their spinal fluid than those with lower pulse pressure, according to research published in the November 13, 2013, online issue of Neurology, the medical journal of the American Academy of Neurology.

Pulse pressure is the systolic pressure, or the top number in a blood pressure reading, minus the diastolic, or the bottom number. Pulse pressure increases with age and is an index of the aging of the vascular system.

The study involved 177 people ages 55 to 100 with no symptoms of Alzheimer's disease. Participants had their pulse pressure taken and lumbar punctures to obtain spinal fluid.

The study found that people who have higher pulse pressure are more likely to have the Alzheimer's biomarkers amyloid beta, or plaques, and p-tau protein, or tangles, in their cerebral spinal fluid than those with lower pulse pressure. For every 10 point rise in pulse pressure, the average level of p-tau protein in the spinal fluid rose by 1.5 picograms per millileter. A picogram is one trillionth of a gram.

"These results suggest that the forces involved in blood circulation may be related to the development of the hallmark Alzheimer's disease signs that cause loss of brain cells," said study author Daniel A. Nation, PhD, of the VA San Diego Healthcare System.

The relationship was found in people age 55 to 70, but not in people age 70 to 100.

"This is consistent with findings indicating that high blood pressure in middle age is a better predictor of later problems with memory and thinking skills and loss of brain cells than high blood pressure in old age," Nation said.


Story Source:

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


Journal Reference:

  1. D. A. Nation, S. D. Edland, M. W. Bondi, D. P. Salmon, L. Delano-Wood, E. R. Peskind, J. F. Quinn, D. R. Galasko. Pulse pressure is associated with Alzheimer biomarkers in cognitively normal older adults. Neurology, 2013; DOI: 10.1212/01.wnl.0000436935.47657.78

Cite This Page:

American Academy of Neurology (AAN). "High blood pressure in middle age vs old age may predict memory loss." ScienceDaily. ScienceDaily, 13 November 2013. <www.sciencedaily.com/releases/2013/11/131113162339.htm>.
American Academy of Neurology (AAN). (2013, November 13). High blood pressure in middle age vs old age may predict memory loss. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2013/11/131113162339.htm
American Academy of Neurology (AAN). "High blood pressure in middle age vs old age may predict memory loss." ScienceDaily. www.sciencedaily.com/releases/2013/11/131113162339.htm (accessed September 2, 2014).

Share This




More Health & Medicine News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Get on Your Bike! London Cycling Popularity Soars Despite Danger

Get on Your Bike! London Cycling Popularity Soars Despite Danger

AFP (Sep. 1, 2014) Wedged between buses, lorries and cars, cycling in London isn't for the faint hearted. Nevertheless the number of people choosing to bike in the British capital has doubled over the past 15 years. Duration: 02:27 Video provided by AFP
Powered by NewsLook.com
Can You Train Your Brain To Eat Healthy?

Can You Train Your Brain To Eat Healthy?

Newsy (Sep. 1, 2014) New research says if you condition yourself to eat healthy foods, eventually you'll crave them instead of junk food. Video provided by Newsy
Powered by NewsLook.com
We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Liberia Continues Fight Against Ebola

Liberia Continues Fight Against Ebola

AFP (Aug. 30, 2014) Authorities in Liberia try to stem the spread of the Ebola epidemic by raising awareness and setting up sanitation units for people to wash their hands. Duration: 00:41 Video provided by AFP
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