Critics say the misleading term actually refers to a heterogeneous population of cells, including possible tissue-specific progenitor cells and nonstem cells all lumped together.

Researchers recovered the cells that give rise to bone and cartilage from fetal and adult bone marrow and also derived them from induced pluripotent stem cells.

A mouse study adds to the growing body of work disputing the ability of progenitor cells to regenerate muscle tissue in adult mammals’ hearts.

Numerous cellular changes underlie the decline of muscle mass and strength in the elderly.

Researchers untangle the multifarious nature of muscle aging. So far, the only reliable treatment is exercise.

The stem cell–derived transplants were stable for 24 months and led to wide-ranging behavioral improvements in the monkeys.  

The first human experiment with neural precursor cells implanted to treat chronic spinal cord injury suggests the procedure is safe, and hints at a small benefit.  

Doctors treated the fetus, who has alpha thalassemia major, with cells from her mother’s bone marrow.

Determining which products of advanced biotechnology are deserving of legal protections is essential to our own social architecture.