What type of blood can affect the risk of attack on the brain

Blood groups describe the rich variety of chemicals displayed on the surface of our red blood cells.

Among the best known are A and B, which may be present together as AB and 0. Even within these main blood groups, there are subtle differences that result from mutations in responsible genes, writes Panacea.

Now the genomic research has uncovered a clear link between the genius of the A1 subgroup and the early attack on the brain.

Researchers collected data from 48 genetic studies, which included some 17,000 people who had had had a brain attack and some 600,000 people from a control group that had not had a stroke. All participants were between the ages of 18 and 59.

A extensive genome research revealed two locations closely linked to the early risk of stroke. One matched the location of the blood type genes.

Another analysis of the particular types of blood - type genes found that people whose genome was encrypted for type A variations had 16 percent more likely to attack before the age of 60, compared with the population of other blood groups.

For those with the O1 genome, the risk was 12 percent lower.

Researchers point out, however, that the additional risk of brain attack on people with type A is small, so there is no need for additional care or examination in this group.

“We still don't know why the blood type A would pose a greater risk,” says one of the authors of the study, vascular neurologist Stephen Kittner of Maryland University.

But it may have to do with blood clotting factors, such as thrombocity and cells that wrap blood vessels, as well as other circular proteins, that play a role in developing blood clotting”, he adds.