Friday, 19 December 2014

Some Blood Types Might Raise Type 2 Diabetes Risk: Study


But experts question value of finding when so many other risk factors for disease can be changed

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WebMD News from HealthDay

By Alan Mozes

HealthDay Reporter

THURSDAY, Dec. 18, 2014 (HealthDay News) -- In what scientists say is a first, a new analysis suggests that some blood types place women at a higher risk for developing type 2 diabetes.

How much higher? According to a team of French researchers, women with blood type B positive appear to face a 35 percent greater risk for developing type 2 diabetes than women with blood type O negative.

However, experts questioned the value of the findings when so many other risk factors for the blood sugar disease can be countered with lifestyle changes.

At play in the study was the basic principal that, as the American Red Cross notes, "not all blood is alike."

Type A blood, for example, carries the A antigen on its surface, sparking a specific immune response whenever foreign substances enter the body. Type B blood carries the B antigen, while type AB carries both, and type O carries neither.

An additional variable, known as the Rhesus (Rh) factor, further distinguishes one person's blood from another's as Rh positive or negative. The result is eight distinct blood types: O positive, O negative, A positive, A negative, B positive, B negative, AB positive and AB negative.

Because accurately matching blood types can prove critical (particularly in the case of blood transfusions), identifying blood type is commonplace.

But screening blood type for diabetes risk is not.

Enter a team led by Guy Fagherazzi, of the Centre for Research in Epidemiology and Population Health at the Gustave Roussy Institute in Villejuif, France. The researchers set out to analyze data on more than 82,000 French women. All the women were tracked from 1990 to 2008.

In the Dec. 18 issue of the journal Diabetologia, Fagherazzi and his colleagues report that women with type A blood ended up with a 10 percent higher overall risk for diabetes than women with type O blood. Those with type B blood faced a more than 20 percent greater risk, while the risk profile of the AB blood type proved inconclusive.

source : Some Blood Types Might Raise Type 2 Diabetes Risk: Study

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