Kenneth S. Korach is a Scientist Emeritus at the NIH. He received his Ph.D. in Endocrinology from the Medical College of Georgia where he characterized biochemical properties of estrogen receptors in the pituitary and hypothalamus. He did post doctorial training at Harvard Medical School with Prof. Lewis Engel on a Ford Fellowship. His research is concerned with the mechanisms of estrogen hormone action, effects of endocrine disruptors, hormonal carcinogenesis; reproductive biology; coupling of receptor signal. He aims to form a basis towards comparison to different disease states of the tissue(s) regarding toxicity, carcinogenesis and/or functional phenotypic alterations and susceptibilities to disease.