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Abstract Title:

Mammalian phytoestrogens: enterodiol and enterolactone.

Abstract Source:

J Chromatogr B Analyt Technol Biomed Life Sci. 2002 Sep 25;777(1-2):289-309. PMID: 12270221

Abstract Author(s):

Li-Quan Wang

Article Affiliation:

Department of Medicinal Chemistry, College of Pharmacy, University of Florida, PO Box 100485, 1600 SW Archer Road, Gainesville, FL 32610, USA. 1qwang@ufl.edu

Abstract:

The mammalian phytoestrogens enterodiol (END) and enterolactone (ENL) are produced in the colon by the action of bacteria on the plant precursors matairesinol (MAT), secoisolariciresinol (SECO), their glycosides, and other precursors in the diet. Both END and ENL have been shown to possess weakly estrogenic and antiestrogenic activities, and it has been suggested that the high production of these antiestrogenic mammalian lignans in the gut may serve to protect against breast cancer in women and prostate cancer in men. Various in vitro experiments suggested END and ENL significantly inhibited the growth of human colon tumor cells, and the E2-induced proliferation of MCF-7 breast cancer cells was inhibited by ENL. The protective effects of mammalian lignans may be due to their ability to compete with E2 for the type II estrogen receptor, to induce sex hormone binding globulin (SHBG), to inhibit placental aromatase, and to act as antioxidants. This review mainly deals with the chemistry, quantitative analysis, biological properties and health effects of END and ENL.

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Sayer Ji
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