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Gary B Silberstein, Katharine Van Horn, Eva Hrabeta-Robinson, and Jennifer Compton

Introduction The mammalian estrous cycle is an endocrine clock that communicates time through periodic oscillations in the concentration of the ovarian steroids, estrogen and progesterone. In tissues such as the mammary gland and

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Andrei G Gunin, Irina N Kapitova, and Nina V Suslonova

, except the primary antibody was replaced with normal mouse serum. All results were expressed as the percentage of mitotic or labelled cells. Estrogen receptor-α, progesterone receptors and β-catenin Estrogen receptor

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M J Meyer, R P Rhoads, A V Capuco, E E Connor, A Hummel, Y R Boisclair, and M E Van Amburgh

). Figure 5 Effect of body weight (BW) on expression of estrogen-responsive genes IGF-I and progesterone receptor ( PR ) within the mammary parenchyma (PAR) and mammary fat pad (MFP). Dairy heifers were offered a restricted or an elevated plane of

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Weidong Pei, Carlton G Bellows, Yongheng Jia, and Johan N M Heersche

progesterone in serum from young and old rats, and found that estrogen levels were higher in the 18 months old rat than in the 3 months old rat, and higher again in rats of 22.5, 25.5, and 26 months old. This agrees with the observations of Chakraborty & Gore

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Taisuke Mori, Fumitake Ito, Hiroshi Matsushima, Osamu Takaoka, Akemi Koshiba, Yukiko Tanaka, Izumi Kusuki, and Jo Kitawaki

baseline mRNA expression levels of estrogen-metabolizing enzymes in spheroid-cultured stromal cells (SCs) derived from normal endometrium (NE), endometrium with endometriosis (EE), and OE. (B) Effects of dienogest (DNG) and progesterone (P 4 ) on mRNA

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Dang-Dang Li, Ying-Jie Gao, Xue-Chao Tian, Zhan-Qing Yang, Hang Cao, Qiao-Ling Zhang, Bin Guo, and Zhan-Peng Yue

(100 ng/mouse) or progesterone (2 mg/mouse) ( Guo et al . 2012 ). The uteri were then collected 1, 3, 6, 12, and 24 h after steroid treatment. To examine whether nuclear receptors for estrogen or progesterone are involved in steroid hormonal regulation

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Joseph Aizen and Peter Thomas

Introduction The single transmembrane protein progesterone receptor membrane component 1 (PGRMC1) is a 25–28 kDa protein that possesses a cytochrome b -like heme-binding domain and belongs to the membrane-associated progesterone receptor (MAPR

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Atsushi Fukushima, Ping Yin, Maho Ishida, Nobuhiro Sugiyama, and Jun Arita

limbic–preoptic–hypothalamic regions ( Goodman & Knobil 1981 ). The LH surge induced by estrogen is stimulated and thereafter inhibited when progesterone, another ovarian hormone, acts after estrogen priming ( Brann & Mahesh 1991 ). Secondly, the GnRH

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Amanda L Patterson, Jamieson Pirochta, Stephanie Y Tufano, and Jose M Teixeira

. Priming of the uterus to become receptive is initiated by ovarian-derived estrogen and progesterone and requires intricately coordinated signaling between the luminal and glandular epithelia (LE and GE, respectively) and the stroma ( Wang & Dey 2006

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J Christoffel, G Rimoldi, and W Wuttke

typical estrogenic effect, as IGF-I causes estrogen-induced proliferation of uterine tissue and prepares the endometrium for possible pregnancy ( Fazleabas et al. 2004 ), and this response is specified by the high progesterone levels after ovulation