Navigation Links
Inflammation Markers May Help Predict Stroke Risk
Date:1/8/2009

They should be used when assessing traditional risk factors, experts say

THURSDAY, Jan. 8 (HealthDay News) -- Two molecular signs -- or "biomarkers" -- of inflammation may provide useful information when trying to assess a person's risk of stroke, new research says.

"If you are very high or very low risk, adding these markers does not change things much," said study lead author Dr. Vijay Nambi, a cardiologist at the Methodist DeBakey Heart & Vascular Center and Baylor College of Medicine in Houston. "But if we are not sure if you are at high risk or low risk, they can provide you with more information."

The markers in question are C-reactive protein (CRP) and lipoprotein-associated phospholipase A2 (Lp-PLA2). Both are indicators of inflammation, and both -- especially CRP -- have been well studied as potential predictors of cardiovascular conditions such as heart attack and stroke.

A first assessment of the risk of stroke must start with the well-known risk factors, such as high blood pressure, high cholesterol, obesity, diabetes and lack of physical activity, Nambi said.

In the new report on the long-running Atherosclerosis Risk in Communities (ARIC) study, those risk factors were used to describe 12,762 participants as having a low risk of stroke (less than 2 percent) within the next five years, intermediate risk (2 percent to 5 percent), or high risk (greater than 5 percent) within five years.

Tests for the two biomarkers reclassified 4 percent, 39 percent, and 34 percent of the low-, intermediate- and high-risk categories, respectively.

In all, 4 percent of the individuals were reclassified from the low- to the intermediate-risk group; 10.7 percent and 27.9 percent were reclassified from the intermediate-risk to the high- and low-risk groups, respectively; and 33 percent of the individuals classified as high risk were reclassified to the intermediate-risk group. No individuals were reclassified from the low- to the high-risk group. Reclassification was most frequent in the intermediate-risk group, the study found.

The findings are published in the February issue of the journal Stroke.

The findings don't prove the value of testing for inflammation biomarkers, Nambi said, adding, "They need to be looked at in different populations" of people.

But the study seems to support an American Heart Association recommendation that a CRP test isn't recommended for someone at low risk of stroke, which the association defines as less than 10 percent within 10 years. CPR tests are recommended, however, for individuals at intermediate risk -- 20 percent within 10 years.

And once the classification has been made, the biomarkers aren't the target of preventive measures, Nambi said. The real targets should be lowering blood pressure, keeping blood cholesterol at safe levels, avoiding obesity, and increasing physical activity, he said.

"Blood pressure has a lot more effect on stroke, compared to its role in heart disease," Nambi said. "Cholesterol is of more importance for heart disease."

Dr. Philip Gorelick, director of the Center for Stroke Research at the University of Illinois College of Medicine at Chicago, said "patients who are concerned about the risk of stroke or have risk factors for stroke should have these tests [for inflammation] done."

Adding the two inflammation biomarkers to conventional risk factors "should help determine how aggressively you treat the conventional risk factors, for example, how low you drive down cholesterol levels," he said.

More information

Learn more about CRP's role in heart disease and stroke at the American Heart Association.



SOURCES: Vijay Nambi, M.D., cardiologist, Methodist DeBakey Heart & Vascular Center and Baylor College of Medicine, Houston; Philip Gorelick, M.D., M.P.H., FACP, director, Center for Stroke Research, University of Illinois College of Medicine at Chicago; February 2009, Stroke


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Pathway links inflammation, angiogenesis and breast cancer
2. New insights into inflammation in osteoarthritis
3. Millennium Announces MLN1202 Significantly Reduced Marker of Systemic Inflammation and Identifies Genomic Biomarker For Responders
4. Abbott Study Examines Rates of Uveitis (Inflammation of the Eye) in Ankylosing Spondylitis Patients Treated with HUMIRA(R) (adalimumab)
5. Jefferson neuroscientists show anti-inflammation molecule helps fight MS-like disease
6. Inflammation Cant Explain Depressions Link to Heart Disease
7. UC Davis researchers discover novel pathway to increased inflammation in diabetes patients
8. Exercise may play role in reducing inflammation in damaged skin tissue
9. Researchers develop powerful tool to study the genetics of inflammation
10. Low-carb diet reduces inflammation and blood saturated fat in metabolic syndrome
11. Diabetes Linked to Blood Vessel Inflammation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin ... injury. Recently, he has implemented orthobiologic procedures as a method for treating his ... of the first doctors to perform the treatment. Orthobiologics are substances that orthopaedic ...
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the benefits of moderation, whether ... latter, setting the bar too high can result in disappointment, perhaps even self-loathing. However, ... their goal. , Research from PsychTests.com reveals that behind the tendency ...
(Date:6/24/2016)... ... 24, 2016 , ... Those who have experienced traumatic events may suffer from ... avenues, such as drug or alcohol abuse, as a coping mechanism. To avoid this ... coping following a traumatic event. , Trauma sufferers tend to feel a range of ...
(Date:6/24/2016)... ... ... Marcy was in a crisis. Her son James, eight, was out of control. Prone to ... , “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If there ... my other children and say he was going to kill them. If we were ...
(Date:6/24/2016)... , ... June 24, 2016 , ... Global law firm ... 2016 Legal Elite. The attorneys chosen by their peers for this recognition are considered ... Seven Greenberg Traurig Shareholders received special honors as members of this year’s Legal Elite ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... -- Dehaier Medical Systems Ltd. (NASDAQ: DHRM ... sells medical devices and wearable sleep respiratory products in ... agreement with Hongyuan Supply Chain Management Co., Ltd. (hereinafter ... 2016, to develop Dehaier,s new Internet medical technology business. ... leverage Hongyuan Supply Chain,s sales platform to reach Dehaier,s ...
(Date:6/24/2016)... -- Research and Markets has announced the addition ... report to their offering. ... The World Market for Companion Diagnostics covers the world ... in the report includes the following: , ... by Region (N. America, EU, ROW), 2015-2020 , World ...
(Date:6/24/2016)...   Pulmatrix, Inc ., (NASDAQ: PULM ... announced today that it was added to the Russell ... comprehensive set of U.S. and global equity indexes on ... milestone for Pulmatrix," said Chief Executive Officer Robert ... progress in developing drugs for crucial unmet medical needs, ...
Breaking Medicine Technology: