2d) was demonstrated following porcine heart transplantation
2d) was demonstrated following porcine heart transplantation. Pigs are physiologically similar to humans, easily bred and are available in unlimited numbers.3,4 The carbohydrate galactose (1,3) galactose (gal 1,3 gal epitope) expressed on pig cells initiates the humoral response and contributes to cell-mediated rejection of porcine xenografts.5C7 Humans and Old World primates do not express a…