MONDAY, May 3, 2021 (HealthDay News) – Certain blood types can increase a person’s risk for various health problems, according to a new study.
The research confirms some previous findings and reveals new associations between blood types and disease, according to the authors of the study, which was published in the journal on April 27 eLife.
“There is still very little information available on whether people with RhD-positive or RhD-negative blood groups are at risk for certain diseases or how many other diseases can be affected by the blood group or group,” said first author Torsten Dahlén. PhD student at the Karolinska Institute in Stockholm.
To fill this gap, the researchers examined the relationship between blood types, RhD status and more than 1,000 diseases. (A person who is RhD positive has a protein called D antigen on their red blood cells; RhD negative means the protein is missing.)
Analyzing health data from more than 5 million people in Sweden identified 49 blood type-related diseases and one associated with the RhD group.
The results showed that people with type A blood were more likely to have blood clots; those with type O blood were more likely to have a bleeding disorder; and women with Type O blood were more likely to develop pregnancy-induced high blood pressure (“hypertension”).
The researchers also found a new association between type B blood and a lower risk of kidney stones, noting that women who are RhD positive are more likely to develop pregnancy-related hypertension.
According to the study’s authors, more research is needed to confirm these results and learn more about the links between blood type and disease risk.
“Our results reveal new and interesting associations between conditions such as kidney stones and pregnancy-related hypertension and blood type or group,” said senior author Gustaf Edgren, associate professor of epidemiology at the Karolinska Institute.
“They lay the foundation for future studies to identify the mechanisms behind disease development or to investigate new ways to identify and treat people with specific diseases,” Edgren added in a press release.
The American Red Cross has more about blood types.
SOURCE: eLife, Press release from April 27, 2021