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ABO genotyping is commonly used in several situations, including blood transfusion, personal identification and disease detection. The present study developed a novel method for ABO genotyping, using loop‑mediated isothermal amplification (LAMP). This method allows the simultaneous determination of six ABO genotypes under 40 min at a constant temperature of 62˚C. The genotypes of 101 blood samples were determined to be AA (n=6), AO (n=38), BB (n=12), BO (n=29), AB (n=8) and OO (n=8) by the LAMP assay. The results were compared with the phenotypes determined by serological assay and the genotypes determined by direct sequencing, and no discrepancies were observed. This novel and rapid method, with good accuracy and reasonably cost effective, provides a supplement to routine serological ABO typing and may also be useful in other point‑of‑care testing.

Determination of ABO blood group genotypes using the real-time loop-mediated isothermal amplification method