MOST data concerning the measurement of serum insulin in human subjects and obtained by in vitro bioassays have employed the rat as experimental animal, using either the diaphragm or the epididymal ...

The problem is that mammalian heart muscle cells, known as cardiomyocytes, lose their ability to proliferate shortly after birth. Researchers have long sought to induce these cells to start dividing ...

Scientists have published the first peer-reviewed account of creating pig–human hybrid fetuses, a step toward growing animals with organs that are suitable for transplantation into humans. The team ...