After years of trial and error, scientists have finally done something incredible: They have successfully grown human stem cells in a pig embryo. Why would anyone do this? Turns out, many ...

A group led by scientists at the Salk Institute for Biological Studies has taken the first big step toward making this a reality: today (January 26) in Cell, they report having grown the first ...

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 ...

Rivers and Ward 1 reported the propagation of louping-ill virus in a Maitland-type culture of chick embryo tissue ... viral agent in monolayer culture of pig kidney.