Human milk provides the neonate with a variety of balanced nutrients a
nd contains biologically active molecules such as hormones and growth
factors. We have utilized a sensitive enzyme immunoassay to detect the
granulocyte stimulator, granulocyte colony-stimulating factor (G-CSF)
in human milk samples. The 12 milk samples tested contained G-CSF ran
ging from 45 to 1551 pg/ml.