Almost 60 percent of people in a new study on attitudes in the US felt comfortable using animals to grow human organs from induced pluripotent stem cells.

By revealing that animals could develop immune responses against their own tissues, the physician-scientist established an entirely new field of science.

Skin is much easier to create using 3-D printing than intestines.

The group calls for the retraction of six publications by surgeon Paolo Macchiarini regarding the synthetic trachea transplantations that led to the death of at least three patients. 

Using human stems cells and segments of rat intestines, scientists engineer bowels that are capable of absorbing nutrients.