PMID- 21703666 OWN - NLM STAT- MEDLINE DCOM- 20120622 LR - 20151119 IS - 1618-0372 (Electronic) IS - 0065-1281 (Linking) VI - 114 IP - 3 DP - 2012 May TI - Effects of genistein on gonadotropic cells in immature female rats. PG - 270-5 LID - 10.1016/j.acthis.2011.06.003 [doi] AB - The effects of genistein on pituitary gonadotropic cells of immature female rats were examined and compared to actions of the synthetic estrogen, 17alpha-ethynylestradiol. Immature female rats received 50mg/kg/bw of genistein in dimethylsulfoxide (DMSO) subcutaneously (s.c.) daily for 3 days at 18, 19 and 20 days of age. A second group was injected with 1mug/kg of 17alpha-ethynylestradiol in olive oil in the same schedule. The genistein control group received DMSO only, while 17alpha-ethynylestradiol controls were given sterile olive oil only. Changes in cell number per mm(2), cell volume and volume density of follicle-stimulating (FSH) and luteinizing (LH) immunolabeled cells were evaluated by morphometry and stereology. Genistein induced significant increases in the number of FSH cells (by 21%) and LH cells (by 20%) per mm(2) compared to corresponding controls. Volumes of FSH and LH cells were significantly increased by 19.7% and 20% and their volume densities by 20% and 20.2%, respectively. Estradiol markedly affected gonadotropes in the same manner, but to a greater extent. It can be concluded that genistein acted as an estrogenic agonist in the pituitaries of immature female rats, and as such, stimulated gonadotropic cells. CI - Copyright A(c) 2011 Elsevier GmbH. All rights reserved. FAU - Medigovic, Ivana AU - Medigovic I AD - Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Serbia. ivana84@ibiss.bg.ac.rs FAU - Manojlovic-Stojanoski, Milica AU - Manojlovic-Stojanoski M FAU - Trifunovic, Svetlana AU - Trifunovic S FAU - Ristic, Natasa AU - Ristic N FAU - Milosevic, Verica AU - Milosevic V FAU - Zikic, Dragan AU - Zikic D FAU - Nestorovic, Natasa AU - Nestorovic N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110623 PL - Germany TA - Acta Histochem JT - Acta histochemica JID - 0370320 RN - 0 (Olive Oil) RN - 0 (Plant Oils) RN - 4TI98Z838E (Estradiol) RN - 9002-67-9 (Luteinizing Hormone) RN - 9002-68-0 (Follicle Stimulating Hormone) RN - DH2M523P0H (Genistein) RN - YOW8V9698H (Dimethyl Sulfoxide) SB - IM MH - Animals MH - Animals, Newborn MH - Cell Count MH - Dimethyl Sulfoxide MH - Estradiol/analogs & derivatives/pharmacology MH - Female MH - Follicle Stimulating Hormone/*agonists/biosynthesis MH - Genistein/*pharmacology MH - Gonadotrophs/cytology/*drug effects/physiology MH - Immunohistochemistry MH - Injections, Subcutaneous MH - Luteinizing Hormone/*agonists/biosynthesis MH - Microscopy MH - Olive Oil MH - Plant Oils MH - Rats MH - Rats, Wistar EDAT- 2011/06/28 06:00 MHDA- 2012/06/23 06:00 CRDT- 2011/06/28 06:00 PHST- 2011/03/30 00:00 [received] PHST- 2011/05/25 00:00 [revised] PHST- 2011/05/30 00:00 [accepted] PHST- 2011/06/28 06:00 [entrez] PHST- 2011/06/28 06:00 [pubmed] PHST- 2012/06/23 06:00 [medline] AID - S0065-1281(11)00093-6 [pii] AID - 10.1016/j.acthis.2011.06.003 [doi] PST - ppublish SO - Acta Histochem. 2012 May;114(3):270-5. doi: 10.1016/j.acthis.2011.06.003. Epub 2011 Jun 23.