Featured Research

from universities, journals, and other organizations

Diabetes duration, severity associated with brain atrophy

Date:
April 29, 2014
Source:
Radiological Society of North America
Summary:
Type 2 diabetes may be associated with brain degeneration, according to a new multi-center study. The study also found that, contrary to common clinical belief, diabetes may not be directly associated with small vessel ischemic disease, where the brain does not receive enough oxygenated blood.

Type 2 diabetes may be associated with brain degeneration, according to a new multicenter study published online in the journal Radiology. The study also found that, contrary to common clinical belief, diabetes may not be directly associated with small vessel ischemic disease, where the brain does not receive enough oxygenated blood.

Related Articles


"We found that patients having more severe diabetes had less brain tissue, suggesting brain atrophy," said lead author R. Nick Bryan, M.D., Ph.D., professor of radiology at the Perleman School of Medicine at the University of Pennsylvania. "They did not seem to have more vascular disease due to the direct effect of diabetes."

According the American Diabetes Association (ADA), nearly 26 million people in the United States have diabetes, and 1.9 million more are diagnosed with the disease each year. Type 2 is the most common form of diabetes. In type 2 diabetes, either the pancreas does not produce enough insulin or the cells ignore the insulin that is produced. The ADA estimates that, based on current trends, as many as one in three American adults will have diabetes in the year 2050.

"As diabetes becomes more common, better understanding of the disease and its management becomes even more important in order to minimize its effect on patient health," Dr. Bryan said.

For the study, Dr. Bryan and colleagues used magnetic resonance imaging (MRI) to investigate the association between severity and duration of type 2 diabetes mellitus and brain structure in 614 patients (mean age 62 years) at four participating centers (University of Minnesota, Minneapolis, Minn.; Wake Forest Medical School, Winston-Salem, N.C.; Columbia University, New York, N.Y.; and Case Western Reserve University, Cleveland, Ohio). The mean duration of disease in the study group was 9.9 years. The researchers specifically tested whether more severe diabetes was inversely correlated with brain volumes and positively correlated with ischemic lesion volumes.

The results showed that longer duration of diabetes was associated with brain volume loss, particularly in the gray matter. However, the study found no association of diabetes characteristics with small vessel ischemic disease in the brain.

"Diabetes duration correlated primarily with brain atrophy," Dr. Bryan said. "Stated another way, our results suggested that, for every 10 years of diabetes duration, the brain of a patient with diabetes looks approximately two years older than that of a non-diabetic person, in terms of gray matter volume."

The researchers noted that their findings may have implications for future decline of cognitive function in patients with diabetes and raise the possibility that such cognitive changes might not be strongly related to vascular dementia but to neurodegenerative disorders, such as Alzheimer's disease.


Story Source:

The above story is based on materials provided by Radiological Society of North America. Note: Materials may be edited for content and length.


Journal Reference:

  1. R. Nick Bryan, Michel Bilello, Christos Davatzikos, Ronald M. Lazar, Anne Murray, Karen Horowitz, James Lovato, Michael E. Miller, Jeff Williamson, Lenore J. Launer. Effect of Diabetes on Brain Structure: The Action to Control Cardiovascular Risk in Diabetes MR Imaging Baseline Data. Radiology, 2014; 131494 DOI: 10.1148/radiol.14131494

Cite This Page:

Radiological Society of North America. "Diabetes duration, severity associated with brain atrophy." ScienceDaily. ScienceDaily, 29 April 2014. <www.sciencedaily.com/releases/2014/04/140429085552.htm>.
Radiological Society of North America. (2014, April 29). Diabetes duration, severity associated with brain atrophy. ScienceDaily. Retrieved March 29, 2015 from www.sciencedaily.com/releases/2014/04/140429085552.htm
Radiological Society of North America. "Diabetes duration, severity associated with brain atrophy." ScienceDaily. www.sciencedaily.com/releases/2014/04/140429085552.htm (accessed March 29, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, March 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

S. Leone in New Anti-Ebola Lockdown

S. Leone in New Anti-Ebola Lockdown

AFP (Mar. 28, 2015) — Sierra Leone imposed a three-day nationwide lockdown Friday for the second time in six months in a bid to prevent a resurgence of the deadly Ebola virus. Duration: 01:17 Video provided by AFP
Powered by NewsLook.com
These Popular Antibiotics Can Cause Permanent Nerve Damage

These Popular Antibiotics Can Cause Permanent Nerve Damage

Newsy (Mar. 27, 2015) — A popular class of antibiotic can leave patients in severe pain and even result in permanent nerve damage. Video provided by Newsy
Powered by NewsLook.com
WH Plan to Fight Antibiotic-Resistant Germs

WH Plan to Fight Antibiotic-Resistant Germs

AP (Mar. 27, 2015) — The White House on Friday announced a five-year plan to fight the threat posed by antibiotic-resistant bacteria amid fears that once-treatable germs could become deadly. (March 27) Video provided by AP
Powered by NewsLook.com
House Ready to Pass Medicare Doc Bill

House Ready to Pass Medicare Doc Bill

AP (Mar. 26, 2015) — In rare bipartisan harmony, congressional leaders pushed a $214 billion bill permanently blocking physician Medicare cuts toward House passage Thursday, moving lawmakers closer to resolving a problem that has plagued them for years. (March 26) Video provided by AP
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:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

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