Blood Type A and Gastric Cancer
Dear OncoLink "Ask The Experts,"
I have read that there may be an additional risk factor for gastric cancer for people with type A blood. If this is true, what if any preventive steps should be taken, and why is this true?
Weijing Sun, MD, Assistant Professor of Medicine at the University of Pennsylvania, the Director of Upper GI and Pancreatic-biliary-hepatic Cancer Group and the Associate Director of the GI Cancer Program, responds:
It has been noticed for many years that there is higher incidence of gastric cancer in blood type A population than in people with other blood types. It seems related more to the 'older type - distal gastric cancer' than 'proximal gastric cancer'. However, the mechanism / reason is unknown. Since the difference of blood types is based on the 'sugar' part of the glycoprotein on the cell membrane, it may not be the 'blood type' itself, rather some unknown molecule(s) adjacent to it.
I don't think there is any information about prevention from that prospect.
OncoLink is designed for educational purposes only and is not engaged in rendering medical advice or professional services. The information provided through OncoLink should not be used for diagnosing or treating a health problem or a disease. It is not a substitute for professional care. If you have or suspect you may have a health problem or have questions or concerns about the medication that you have been prescribed, you should consult your health care provider.
Information Provided By: www.oncolink.org | © 2016 Trustees of The University of Pennsylvania