A research team found a novel function of fibroblast growth factor 2, a self-renewal factor for spermatogonial stem cell which is the origin of the sperm production.

Elevated immune function during childhood results in as much as 49 percent growth reduction in Ecuador's indigenous Shuar population, researchers report.

Among children diagnosed with ADHD, low doses of ADHD medications did not affect thyroid or growth hormone levels, according to study data. Trends in hormone indices of children with ADHD who ...

An alternative function with a more physiological basis is developed by assuming that, when light is limiting, growth rate is proportional to intercepted radiation and therefore to an exponential ...