Navigation Links
Brain bleeding is common with aging, UCI study finds
Date:11/8/2010

Irvine, Calif., Nov. 8, 2010 A small amount of bleeding in the brain seems to be common among older individuals, according to a UC Irvine study.

Neurologist Dr. Mark Fisher and neuropathologist Dr. Ronald Kim found that cerebral microbleeds are highly prevalent in the aging brain and not primarily products of stroke-related injury, hypertension or neurodegenerative diseases such as Alzheimer's, as had been thought.

"Prior work relied on brain imaging to show cerebral microbleeds," Fisher said. "But in this study, deep regions of the brain were closely examined under a microscope, and nearly all subjects had evidence of small areas of bleeding."

Results appear online in the journal Stroke.

Fisher, Kim and colleagues at Harbor-UCLA Medical Center studied postmortem brain specimens from 33 individuals, ranging in age from 71 to 105, with no history of stroke. Cerebral microbleeds were identified in 22 cases all occurring in capillaries, the small blood vessels of the brain.

This is a substantially higher rate of incidence than that reported in MRI studies, which have shown microbleeds in 18 percent of people between 60 and 69 and in 38 percent of those over 80.

"Drugs that interfere with platelets and blood clotting, such as aspirin, are known to be associated with microbleeds seen in brain imaging studies," Fisher said. "Our findings suggest that aspirin and other platelet medications may have a different effect on the aging brain than on younger brains."

Results from the UCI study also indicate that leakiness of brain blood vessels increases with age, he said, despite the fact that a specific barrier (known as the blood-brain barrier) exists to prevent leakiness.

The areas of bleeding found in the study were very small and certainly not life-threatening, Fisher said. How they might affect intellectual and neurological function is a subject for further exploration.


'/>"/>

Contact: Tom Vasich
tmvasich@uci.edu
949-824-6455
University of California - Irvine
Source:Eurekalert

Page: 1

Related medicine news :

1. Cedars-Sinai nano-drug hits brain-tumor target found in 2001
2. Live streaming of emerging brain science and health news
3. Electrical Brain Stimulation May Boost Math Skills
4. Brain May Be More Developed at Birth Than Thought
5. Good Conversation Can Boost Brain Power, Study Finds
6. Gene Associated With Autism May Alter How Brain Functions
7. Brain Can Compensate for Cognitive Damage
8. 20th public data release by Allen Institute for Brain Science
9. Brain Difference Found in Smokers
10. Lactate in the brain reveals aging process
11. Scientists turn a new leaf to discover a compound in daffodils that targets brain cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/21/2017)... Los Angeles, California (PRWEB) , ... August 21, ... ... Physicians is announcing the addition of two plastic surgery fellows for academic year ... is designed for candidates who have successfully completed residency in Plastic and Reconstructive ...
(Date:8/21/2017)... ... August 21, 2017 , ... Five chefs from local senior assisted ... Family Center. , Guests will be able to vote for their favorite Chef ... Shank with Fennel Dill Salad, Feta Cheese Sauce & Garlic Pita Crisp, Greek Mountain ...
(Date:8/21/2017)... ... August 21, 2017 , ... The experts have spoken. ... we supposed to get things done in a healthy way these days? FlexiSpot, one ... a crowdfunding campaign on August 28 to introduce Deskcise Pro™– the world’s first sit-stand-cycle ...
(Date:8/21/2017)... San Diego, CA (PRWEB) , ... August 21, 2017 , ... ... Membership ( MAM ) health care reform plan, has announced his candidacy for the ... the American Dream and shared in America’s Promise. Coming to this country at age ...
(Date:8/20/2017)... LOS ANGELES, Calif. (PRWEB) , ... August 20, 2017 , ... A total solar ... to darken for a few minutes as the moon moves between the sun and Earth. ... drivers? , These four tips can help keep you safe on the road during ...
Breaking Medicine News(10 mins):
(Date:8/1/2017)... CerSci Therapeutics , a non-opioid drug development firm based ... notice from the National Institute on Drug Abuse (NIDA) ... has been awarded a Direct-to-Phase II Small Business Innovation ... an additional $1,000,000 to follow in 2018. These funds ... lead non-opioid drug candidate CT-044 to the Food and ...
(Date:7/31/2017)... , July 31, 2017 Three Tru-D SmartUVC robots ... South Korea . Tru-D, short for "Total Room Ultraviolet Disinfection," ... rooms after an environmental services (ES) professional cleans the area with traditional ... Tru-D ... "Although the BAACH has ...
(Date:7/28/2017)... Holdings, Inc. ("Hill-Rom") (NYSE: HRC), today announced financial results ... and updated its financial outlook for fiscal 2017. ... third quarter, Hill-Rom reported earnings of $0.09 per diluted ... prior-year period. These results reflect after-tax special items, including ... to the non-cash write-down of assets associated with the ...
Breaking Medicine Technology: