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Stroke Risk High With the Presence of a Certain Type of Antibody

by Savitha C Muppala on  February 23, 2010 at 7:01 PM Research News   - G J E 4
 Stroke Risk High With the Presence of a Certain Type of Antibody
The chances of suffering a stroke is high in the presence of a certain type of antibody in the immune system, a new study from Karolinska Institute shows.
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Buzz up!The research group, which was led by Professor Johan Frostegard, hopes to be able to develop a vaccine that can mobilise the body's own defence against arteriosclerosis and stroke.

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In the study, researchers focused exclusively on stroke - a blood clot in the brain - and compared 227 individuals who had suffered stroke over a 13-year period with 445 sex and age-matched controls.

After controlling for other risk factors (age, sex, smoking habits, cholesterol levels, diabetes, BMI and blood pressure), they were able to show that low levels (below 30 per cent of average) of PC antibodies correlated with a higher risk of stroke, which in women meant an almost three-fold increase.

The researchers have now advanced the hypothesis that low levels of natural PC antibodies - which can be a condition of a poor immune system - contribute to the development of arteriosclerosis and its consequences, which include stroke.

"Were now examining the possibility of developing new immunological treatments for arteriosclerosis and stroke, either in the form of a vaccine to stimulate the immune defence or immunisation through the injection of antibodies," says Professor Frostegard.

Arteriosclerosis is formed by the accumulation of plaque on the walls of blood vessels, which can rupture and form a blood clot.

The researchers believe that the PC antibodies react to a substance called phosphorylcholine (PC), which is a component of a class of fat molecules (phospholipids) that go to make up the laque.

Source: ANI
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