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Blood group linked to heart diseases.

ISLAMABAD -- People from blood groups A, B and AB are more at risk of heart diseases than those with the more common blood type O, a study suggests.

Those with the rarest blood group, AB, are the most vulnerable - they are 23 per cent more likely to suffer from heart diseases than those with blood group O, reported BBC Health.

The researchers from Harvard School of Public Health in Boston also found that for individuals with blood group B the risk of heart disease increased by 11 per cent, and for blood type A, by 5 per cent. However, blood group AB has been linked to inflammation, which plays an important role in artery damage.

There is also evidence that blood group A is associated with higher levels of the 'bad' type of cholesterol, low density lipoprotein (LDL), a waxy substance that can clog arteries.

While those with blood group O may benefit from increased levels of a chemical which helps blood flow and clotting.

The findings are based on two large analytical studies - 62,073 women from the Nurses' Health Study and 27,428 adults from the Health Professionals Follow-up Study. They were between the ages of 30 and 75 and followed for 20 years.

Blood type is very complicated, so there could be multiple mechanisms at play. People cannot change their blood type. These findings may help physicians better understand who is at risk of developing heart diseases.

If one knows he/she is at higher risk, they can reduce the risk by adopting a healthier lifestyle, such as eating right, exercising and not smoking.

Nobody can influence what type of blood they are born with but a healthy lifestyle is something everybody can have an influence over.

As this study group was predominantly Caucasian, the researchers say it is not clear if their findings would be reflected in other ethnic groups.
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Publication:Balochistan Times (Baluchistan Province, Pakistan)
Date:Dec 16, 2012
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