After years of research into xenotransplantation, the field is at a turning point—yet risks and ethical issues remain ...

Primates also didn’t breed as quickly as pigs do. Bottom line, Caplan said: “It didn’t work.” Humans are also more ethically comfortable with organs from pigs than non-human primates ...

Some scientists are confident that organs from genetically modified pigs will one day be routinely transplanted into humans. But substantial ethical questions remain. Genetically modified ...

German scientists plan to clone and then breed this year genetically modified pigs to serve as heart donors for humans, based on a simpler version of a US-engineered animal used last month in the ...

The idea is to genetically alter pigs or baboons to make their organs compatible for use in human beings. This has now been done successfully for a second time in a human research subject.

Pig heart valves have been used as replacements in humans since the 1960s, but in those cases, the tissue is chemically treated to kill off the cells including the alpha-gal sugar. Presumably ...

The animals breed and grow quickly, their organs are about the right size, and there aren’t many pathogens that infect both ...