FILGRASTIM, G-CSF (fil GRA stim) is a granulocyte colony-stimulating factor that stimulates the growth of neutrophils, a type of white blood cell (WBC) important in the body's fight against infection.
The hypothalamus, a part of the brain, is responsible for many hormones. Understanding these brainy hormones will help you take control of your body and your health. The hypothalamus produces hormones that control the production of hormones in the pituitary gland.
The hypothalamo-pituitary-testicular axis of the male rhesus monkey and ram. In both species, the negative feedback regulation of LH secretion is controlled by testosterone, which is produced by the Leydig cells and acts at the level of the central nervous system to inhibit GnRH neurons.