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:12/17/2014)... -- Expectant parents should leave prenatal picture-taking to medical ... Use of ultrasound imaging and heartbeat monitors to get ... agency warns. "Although there is a lack ... and heartbeat monitors, prudent use of these devices by ... FDA biomedical engineer, said in an agency news release. ...
(Date:12/17/2014)... HealthDay Reporter , TUESDAY, Dec. 16, ... America, and work commitment is a big reason why, new ... said Dr. Mathias Basner, an assistant professor of sleep and ... of Medicine. A time-use survey of nearly 125,000 Americans, ... main activity exchanged for sleep. Short sleepers -- those who ...
(Date:12/15/2014)... 15, 2014 South Florida’s leading urgent care ... can be a daze of hassle, hustle, and bustle that ... decking halls, to burns when making special meals and heartburn ... can happen at any time. To prevent this season of ... made a list of helpful and healthful holiday tips to ...
(Date:12/15/2014)... News) -- Expert pilots process visual information more efficiently ... better decisions during landings, a new study shows. ... pilots to master, and 36 percent of all airplane ... final approach and landing. Researchers monitored the brain ... pilots while they were at the controls of a ...
(Date:12/15/2014)... 15, 2014 At the leading, long-established ... AutismOne and Focus Autism will welcome ... research on the effects of toxins to children’s health, ... information. , Luminaries such as Dr. Lucija Tomljenovic ... with esteemed, credentialed colleagues of the United States to ...
Breaking Medicine News(10 mins):Health News:FDA Warns Against Fetal 'Keepsake' Videos 2Health News:Work Steals Valuable Sleep Time, Study Finds 2Health News:Work Steals Valuable Sleep Time, Study Finds 3Health News:MD Now Urgent Care Presents Healthy Holiday Tips 2Health News:MD Now Urgent Care Presents Healthy Holiday Tips 3Health News:Study Shows Why Expert Pilots Are Experts 2Health News:AutismOne and Focus Autism Collaborate on Scientific Conference; International Group of Researchers to Present in Chicago, May 2015 2Health News:AutismOne and Focus Autism Collaborate on Scientific Conference; International Group of Researchers to Present in Chicago, May 2015 3
... Amsterdam, June 26, 2008 - Elsevier, the leading ... and services, today announced highlights of its Journal ... Journal Citation Reports published by ThomsonReuters, reports that ... respective categories. In addition, total Elsevier journal citations ...
... to Avastin at Improving Visual Acuity When, Used ... Share, ... Resources, WALTHAM, Mass., June 26 Decision Resources, ... on pharmaceutical and,healthcare issues, finds that Genentech/Novartis,s Lucentis will ...
... One of Canada,s Largest Academic Cancer Centers, ... ARAY ), a global leader in the field ... de Montreal (CHUM),has purchased a CyberKnife(R) Robotic Radiosurgery ... Montreal, Canada., CHUM, one of the largest ...
... Pharmaceuticals, Inc. (Nasdaq: AVRX), announced today the nomination of AVN316 ... Inhibitor program. This novel compound inhibits the Beta-catenin pathway and ... The Company plans to begin clinical testing of AVN316 in ... commonly activated cancer pathways and is known to play a ...
... who eat unhealthy, high-fat meals may experience memory declines ... antioxidant vitamins with the meal, according to new research ... diabetes to cognitive complications in humans. Adults with ... memory deficits after eating unhealthy foods. , This ...
... 2008 Tour Will Donate More than $1.6 Million and ... Dealers Supporting the Fight against Pediatric Cancer, FOUNTAIN ... on Wheels(TM) Tour launched yesterday in Los Angeles with ... Hospital Los,Angeles. The Tour will visit 32 children,s hospitals ...
Cached Medicine News:Health News:Elsevier announces 2007 journal impact factor highlights 2Health News:Because of Its Ability to Generate Higher Total Sales in the United States and Europe, Lucentis Will Earn Clinical Gold Standard Status by 2011 for the Treatment of Diabetic Retinopathy 2Health News:First CyberKnife System to be Installed in Canada 2Health News:First CyberKnife System to be Installed in Canada 3Health News:First CyberKnife System to be Installed in Canada 4Health News:Avalon Pharmaceuticals names lead development candidate in beta-catenin inhibitor program 2Health News:Seniors with type 2 diabetes may experience memory declines immediately after eating unhealthy meal 2Health News:Seniors with type 2 diabetes may experience memory declines immediately after eating unhealthy meal 3Health News:Hyundai Motor America and Its Dealers Launch National Hope on Wheels Tour to Support Pediatric Cancer Research 2Health News:Hyundai Motor America and Its Dealers Launch National Hope on Wheels Tour to Support Pediatric Cancer Research 3
(Date:12/14/2014)... , Dec. 14, 2014  ChartSpan, a consumer ... most downloaded iPhone and iPad medical app in ... - http://photos.prnewswire.com/prnh/20141214/164317 ChartSpan is ... ability to request, manage and send electronic healthcare records. ... entrepreneurs who grew tired of waiting for the healthcare ...
(Date:12/13/2014)... , Dec. 12, 2014  Radiologists can transmit ... images, to their referring physicians, electronic health records ... carefully selected technology.  That was ... Systems Corporation (ADS) at the recent Radiology Society ... transmitting of radiology reports in this manner also ...
(Date:12/13/2014)... , December 12, 2014 ... has announced the addition of the  "Global ... offering.       (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ... (CO2) in the respiratory gasses during the ... care. Capnography provides information about CO2 production, ...
Breaking Medicine Technology:ChartSpan Becomes The Most Downloaded Medical App in America 2ChartSpan Becomes The Most Downloaded Medical App in America 3Advanced Data Systems Presents on Interface-Free EHR Communications at RSNA's 2014 Conference: Streamlining Communication of Reports and Images to Referring Physicians 2Advanced Data Systems Presents on Interface-Free EHR Communications at RSNA's 2014 Conference: Streamlining Communication of Reports and Images to Referring Physicians 3Global Capnography Market 2015-2019: Key Vendors are Covidien, Masimo, Philips Healthcare, Smiths Medical and Welch Allyn 2Global Capnography Market 2015-2019: Key Vendors are Covidien, Masimo, Philips Healthcare, Smiths Medical and Welch Allyn 3
... Calif., May 18, 2011 Amgen (NASDAQ: ... nine Amgen products will be presented at the 2011 ... 3 - 7, 2011 in Chicago.  These studies include ... 479) and AMG 386 programs. "Amgen researchers ...
... May 18, 2011 Qualitest Pharmaceuticals today announced ... has approved dexamethasone elixir, USP, 0.5mg/ 5 mL ... USP, 0.1 mg/0.02 mg). Dexamethasone elixir ... including endocrine disorders, rheumatic disorders, and collagen diseases. ...
Cached Medicine Technology:Amgen Oncology Data to be Presented at ASCO Annual Meeting 2Amgen Oncology Data to be Presented at ASCO Annual Meeting 3Amgen Oncology Data to be Presented at ASCO Annual Meeting 4Amgen Oncology Data to be Presented at ASCO Annual Meeting 5Amgen Oncology Data to be Presented at ASCO Annual Meeting 6Amgen Oncology Data to be Presented at ASCO Annual Meeting 7Amgen Oncology Data to be Presented at ASCO Annual Meeting 8Amgen Oncology Data to be Presented at ASCO Annual Meeting 9Amgen Oncology Data to be Presented at ASCO Annual Meeting 10Amgen Oncology Data to be Presented at ASCO Annual Meeting 11Amgen Oncology Data to be Presented at ASCO Annual Meeting 12Amgen Oncology Data to be Presented at ASCO Annual Meeting 13Amgen Oncology Data to be Presented at ASCO Annual Meeting 14Qualitest Receives FDA Approval for Dexamethasone Elixir, USP, 0.5mg/ 5 mL and Orsythia™ Tablets (Levonorgestrel and Ethinyl Estradiol Tablets, USP, 0.1 mg/0.02 mg) 2
... a Range of Parameters. ... Enzyme, High Intensity, or ... Higher-Efficiency Transfers via Plate ... Transfers with Movable Electrodes. ...
... specifically designed to work with the EC120 ... a small tank blotter that incorporates the ... buffer requirements and fast transfer rates), with ... blotting such as arcing and buffer depletion. ...
... Trans-Blot SD semi-dry transfer cell ... blotting. Using a platinum-coated titanium ... a stainless steel plate as ... cell transfers in a horizontal ...
Semi-Dry Blotting Unit for 10 x 10cm Gels...
Medicine Products: