Department of Obstetrics and Gynecology, Dokkyo University School of Medicine, Mibu, Shimotsuga, Tochigi, Japan.
Fertil Steril. 2011 Mar 1;95(3):1168-70. doi: 10.1016/j.fertnstert.2010.09.041. Epub 2010 Nov 3.
We aimed to clarify which steroid receptor is involved in the inhibitory effect of medroxyprogesterone acetate (MPA) on estrogen-induced endothelial nitric oxide synthase (eNOS) phosphorylation in human umbilical vein endothelial cells (HUVEC). The progesterone/glucocorticoid receptor (GR) antagonist RU-486 and introduction of GR siRNA caused attenuation of the inhibitory effect of MPA on the estrogen-induced eNOS phosphorylation and eNOS activity in HUVEC.
我们旨在阐明哪种类固醇受体参与了醋酸甲羟孕酮(MPA)对人脐静脉内皮细胞(HUVEC)中雌激素诱导的内皮型一氧化氮合酶(eNOS)磷酸化的抑制作用。孕激素/糖皮质激素受体(GR)拮抗剂 RU-486 和 GR siRNA 的引入导致 MPA 对 HUVEC 中雌激素诱导的 eNOS 磷酸化和 eNOS 活性的抑制作用减弱。