Navigation Links
Fish May Ward Off Dementia and Stroke
Date:8/5/2008

Those rich in omega-3 fatty acids can reduce risk by 26%, study finds

TUESDAY, Aug. 5 (HealthDay News) -- Fish may be brain food after all -- not making you smarter, as your grandmother said, but by lowering the risk of cognitive decline and stroke as you get older, according to a new study.

The benefit appears to come from fish rich in omega-3 fatty acids. In fact, eating fish such as tuna three times a week can reduce the risk of dementia or stroke by 26 percent, the study found.

"Older adults who consumed tuna or other baked or broiled fish had a lower risk of having abnormalities on brain MRIs," said study co-author Dr. David Siscovick, a professor of medicine and epidemiology at the University of Washington Cardiovascular Health Research Unit.

For the study, Siscovick and his colleagues looked for small vessel disease, which is known to lead to cognitive impairment, dementia and stroke. "This study looked at whether or not different types of fish intake were related to structural changes in the brain," he said.

The researchers collected data on 3,660 men and women 65 and older. They underwent brain scans to detect what doctors call silent brain infarcts, which are small lesions in the brain that are associated with the loss of thinking skills, dementia or stroke. These lesions are found in about 20 percent of otherwise healthy older people, and they're only detectable on brain scans, the researchers said.

Five years later, the researchers repeated the scans on 2,313 of the original study participants. In addition, the participants answered questions about the amount of fish in their diet.

Siscovick's team found that people who ate tuna that was broiled or baked, or other fish high in omega-3 fatty acids, three or more times a week, had almost a 26 percent lower risk of silent brain infarcts compared with people who didn't eat fish regularly. In fact, eating just one serving of fish a week reduced the risk by 13 percent.

What's more, people who ate fish regularly had fewer abnormal changes in their brain's white matter, the researchers found. Abnormal changes in white matter and small brain infarcts are signs of small vessel disease, Siscovick said.

But how the fish was cooked appeared to be important, according to the findings, which were published in the Aug. 5 issue of the journal Neurology.

"We didn't find any association with eating fried fish and having lower rates of these abnormalities," Siscovick said, adding that fish rich in omega-3 fatty acids aren't typically fried.

Besides tuna, fish rich in omega-3 fatty acids include salmon, mackerel, herring, sardines and anchovies.

"The message to the public is to eat more fish that has higher levels of omega-3 fatty acids, rather than eating more fried fish," Siscovick said.

Greg M. Cole, associate director of the Alzheimer's Disease Research Center at the UCLA David Geffen School of Medicine, said that fish consumption -- along with other components of a healthy diet -- may explain the study's findings.

The same people with higher fish intake also had other dietary differences, such as higher intake of fruits and vegetables, said Cole, who's also a neuroscientist at the Greater Los Angeles VA Healthcare System. "This may be related to the more than one factor, analogous to the Mediterranean diet that is also rich in fish and fruits and vegetables and has been frequently associated with less cardiovascular risk," he said.

Eating fatty fish has also been associated with reduced risk of Alzheimer's disease, Cole added.

More information

For more on the benefits of eating fish rich in omega-3 fatty acids, visit the American Heart Association.



SOURCES: David Siscovick, M.D., M.P.H., professor of medicine and epidemiology, Cardiovascular Health Research Unit, University of Washington, Seattle; Greg M. Cole, Ph.D., neuroscientist, Greater Los Angeles VA Healthcare System, and associate director, Alzheimer's Disease Research Center, UCLA David Geffen School of Medicine, Los Angeles; Aug. 5, 2008, Neurology


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Being Single in Midlife Could Raise Risk for Dementia Later
2. Hypnosis shown to reduce symptoms of dementia
3. Dementia Underestimated in Developing Countries
4. Prevalence of dementia in the developing world underestimated
5. Alzheimers & Dementia: The Journal of the Alzheimers Association accepted for coverage in MEDLINE
6. Integrating palliative care for dementia into primary care
7. More 90-Plus Women Than Men Prone to Dementia
8. Invest in a future without dementia
9. Adding Light Eases Behavioral Problems of Dementia
10. Antipsychotics Dangerous for Elderly With Dementia
11. Short-term use of antipsychotics in older adults with dementia linked to serious adverse events
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/17/2017)... ... ... make New Year’s resolutions or renew their commitment to better health with the start of ... want to kick off 2017 with better smiles. Dr. Mondavi is offering several promotions for ... , , A new patient package for just $49, which can ...
(Date:1/17/2017)... , ... January 17, 2017 , ... ... and the Montclair State University’s Athletic Training Education program forged a relationship built ... Training Education Program, which is consists of both student members and certified ...
(Date:1/16/2017)... Creek, MI (PRWEB) , ... January 17, 2017 , ... ... abuse located in Southwest Michigan, joined other volunteers and organizations in support of the ... hundreds of children and families dressed up in colorful costumes of all designs coming ...
(Date:1/16/2017)... ... January 16, 2017 , ... Gym Source, America’s leading retailer of premium residential ... Hanover, New Jersey. , “We are elated to be opening this new showroom,” explains ... designed to give clients a seamless and motivating shopping experience.” , Every fitness journey ...
(Date:1/16/2017)... ... January 16, 2017 , ... With the Grand Opening Event planned ... for use by sports teams and the general public. Built in five months by ... also be converted into basketball or pickleball courts. The space is also suitable for ...
Breaking Medicine News(10 mins):
(Date:1/17/2017)... Jan. 17, 2017 Secretary of Health Dr. ... Secretary Gary Tennis are warning Pennsylvanians of ... recent overdose deaths from the drug in ... intended to sedate large animals and is not meant ... comes into contact with it," Secretary Murphy said. "It,s ...
(Date:1/17/2017)... -- Paragon Bioservices received a multiple-award, indefinite-delivery, indefinite-quantity ... a variety of National Institute of Allergy ... activities. The IDIQ mechanism will allow Paragon to ... awards up to $159 million. Paragon ... development of biopharmaceuticals, is one of four awardees ...
(Date:1/17/2017)... Ariz. , Jan. 17, 2017 Angel ... US Navy Capt. Mark Kelly as the ... 2017 National Conference in Washington D.C. ... commander, will speak on Friday morning, April 21 at ... professionals from across the country are expected to attend ...
Breaking Medicine Technology: