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Everyone has a blood type, but not everyone knows it. Many people are also unaware that certain blood groups can increase the risk of certain diseases. Scientists are still researching it and have just found another clue. A link has been found between the blood group and the risk of stroke in younger people. Who Is More At Risk Of Early Stroke And Why? Here’s what was agreed.
- A stroke is a medical emergency that can lead to a lifelong disability and the risk of a stroke may increase depending on certain factors
- A study published on August 31 showed that people with type A blood may be at higher risk of having an early-onset (i.e. before age 60) stroke
- It is not known exactly why this is so. Scientists suspect, however, that it may be related to blood clots
- More information can be found on the Onet homepage
Who is most at risk of having a stroke? The most important factors
Scientists have been studying a possible relationship between stroke risk and specific blood groups for years. The topic is important. Stroke is one of the most common causes of death and the leading cause of disability in adults. Only in Poland, 80 thousand. people suffer a stroke, almost 40 percent. of them dies. Although it is associated with the elderly, it happens to young, generally healthy people. And it is happening more and more often.
Why is stroke so dangerous? Suffice it to say that it attacks suddenly and leads to the death of a part of the brain (most often as a result of cutting off the blood supply – the so-called ischemic stroke). There is little time for help, but the effects – as we mentioned above – can change your life forever. Memory loss, blindness, paralysis, and communication problems can occur.
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Who is most at risk of having a stroke? It is known that diabetes, hypertension, heart disease, and coagulation disorders contribute to this. However, there are factors that can be modified, but there are also factors that are beyond our control – including age, genetics and previous stroke. Following the results of the research published on August 31 in the journal “Neurology”, one more could be added to the latter: the blood type.
How do blood groups affect your risk of stroke? New arrangements
In this study, researchers looked at the blood group and its associated risk of an early ischemic stroke (early-onset strokes are those that happen before the age of 60). 48 previous genetic studies were analyzed, including data from 16 cases of stroke and almost 730 cases. non-stroke controls (data from North America, Europe, Japan, Pakistan, and Australia).
By analyzing genetic variations that were associated with a higher risk of early strokes, researchers found one of the strongest links in the genes that determine blood type. After taking into account gender and other factors that may affect stroke risk, it turned out that people with blood type A had 18 percent higher risk of early stroke than people with other blood types, with people with blood type 0 having this risk by 12 percent. lower. Interestingly, people with blood group B.
Why does blood group A increase the risk of early stroke? A suspicion
The researchers point out that the nature of the link between early strokes and blood group A is not yet fully understood. However, they suspect that it may be related to the formation of blood clots (i.e. causes of blockage of blood flow to the brain). Previous research has already suggested that people with blood group A (and also B blood) may have a higher risk of developing dangerous blood clots compared to people with blood group 0.
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Something else was discovered in this study. They found that blood groups A and B are also associated with a higher risk of deep vein thrombosis.
“We still don’t know why blood group A is associated with a higher risk, but it probably has something to do with blood clotting factors like platelets, cells lining blood vessels, other circulating proteins – all play a role in blood clots” – Explained Steven J. Kittner, one of the principal investigators and professor of neurology at the University of Maryland School of Medicine.
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The researchers emphasize that their findings are not cause for concern – people with blood group A are at a marginal increased risk of early stroke. Researchers hope their work will lead to the development of methods for preventing stroke in younger adults. “This work raises an important question that requires a deeper study: how genetically determined blood types may play a role in the early risk of stroke,” emphasized Prof. Mark T. Gladwin, vice president of medical affairs and dean, University of Maryland School of Medicine. As he added, “this demonstrates the urgent need to find new ways to prevent these potentially devastating events in younger adults.”