The ABO blood group distribution varies in different geographical and ethnic groups. In Punjab (India), the ABO blood frequency is B>O>A>AB. The current study was an attempt to correlate the ABO blood group frequency with preponderance of breast and gastrointestinal cancer in Punjab, to assess the utility of ABO blood group as a preclinical marker. The study sample consists of 160 cancer patien...

The ABO blood group antigens are expressed on erythrocytes but also on endothelial cells, platelets and serum proteins. Notably, the ABO blood group of a malaria patient determines the development of the disease given that blood group O reduces the probability to succumb in severe malaria, compared to individuals of groups A, B or AB. P. falciparum rosetting and sequestration are mediated by Pf...