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Progesterone Pregnacy

Hongyi Xu, Kai Deng, Qingbing Luo, Juan Chen, Xin Zhang, Xiaoyan Wang, Honglu Diao, Changjun Zhang
BACKGROUND/AIMS: To investigate whether brown zona pellucida (ZP) of oocytes affects the outcome of fertilization, embryo quality and pregnancy rate in in vitro fertilization-embryo transfer (IVF-ET). METHODS: Based on the ZP color of their oocytes, a total number of 703 patients dated from 2012 to 2014 were divided into a normal egg group (group A) and a brown oocyte group (group B), with 629 and 74 cases, respectively. Clinical characteristics, gonadotropin (Gn) days, Gn dosage, serum hormone levels on the day of human chorionic gonadotropin (HCG) injection, ZP thickness (ZPT) of the eggs, fertilization rate, rescue intracytoplasmic sperm injection (rICSI) rate, good-quality embryo rate and pregnancy rate were compared between the two groups...
2016: Cellular Physiology and Biochemistry
C J Lockwood, M Paidas, W K Murk, U A Kayisli, A Gopinath, S J Huang, G Krikun, F Schatz
Vascular injury increases access and binding of plasma-derived factor VII to perivascular cell membrane-bound tissue factor (TF). The resulting TF/VIIa complex promotes hemostasis by cleaving pro-thrombin to thrombin leading to the fibrin clot. In human pregnancy, decidual cell-expressed TF prevents decidual hemorrhage (abruption). During placentation, trophoblasts remodel decidual spiral arteries into high conductance vessels. Shallow trophoblast invasion impedes decidual vascular conversion, producing an inadequate uteroplacental blood flow that elicits abruption-related placental ischemia...
November 2009: Thrombosis Research
Hong-Xia Ma, Zhao-Ling You, Xiao-Yun Wang
OBJECTIVE: To explore the effect of total flavones from cuscuta chinensis (TFCC) on expression of Fas, PCNA and HB-EGF in SD rats model with bromocriptine-induced abortion. METHODS: The model rats of bromocriptine during 6-8 d of pregnancy induced early abortion was established, adopting respectively herbs in high and low dosage and progesterone affect model rat and after 12 d, Immunohistochemical was applied to determine Fas, HB-EGF and PCNA in deciduas and placenta...
November 2008: Zhong Yao Cai, Zhongyaocai, Journal of Chinese Medicinal Materials
D E Jones, A Kinfton
Uterine activity was recorded during the last few weeks of pregnacy in goats, and related to changes in plasma progesterone concentration. In six of the 14 pregnancies, there was little activity until immediately pre-partum, but the remainder showed a progressive increase in uterine motility, particularly during the last seven days of pregnancy. There was a significant correlation between increased uterine activity and decline of peripheral plasma progesterone levels.
January 1977: Research in Veterinary Science
F W Stamler
Fatal disseminated intravascular coagulation (DIC) was induced in female rats by administration of progesterone in late pregnacy. This prevented parturition, with intrauterine fetal death 2 to 4 days past term and subsequent retention of dead fetuses. Concomitantly with or closely following the intrauterine death of their litters, a large proportion of pregnant rats died with histologically evident DIC. Administration of cortisone, heparin, or disoumarin did not prevent DIC, and xi-aminocaproic acid, acetylsalicylic acid, or an onion-rich diet tended to increase its incidence...
March 1977: American Journal of Pathology
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