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 pituitary controls the function of most other endocrine glands and is therefore sometimes called the master gland. In turn, the pituitary is controlled in large part by the hypothalamus, a region of the brain that lies just above the pituitary.