نتایج جستجو برای: ovine fetus

تعداد نتایج: 33686  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Kathrin A Dunlap Massimo Palmarini Mariana Varela Robert C Burghardt Kanako Hayashi Jennifer L Farmer Thomas E Spencer

Endogenous retroviruses (ERVs) are fixed and abundant in the genomes of vertebrates. Circumstantial evidence suggests that ERVs play a role in mammalian reproduction, particularly placental morphogenesis, because intact ERV envelope genes were found to be expressed in the syncytiotrophoblasts of human and mouse placenta and to elicit fusion of cells in vitro. We report here in vivo and in vitro...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2001
J S Rosnes N Valego J J Wang F M Perez J C Rose

We hypothesized that renal denervation in mature ovine fetuses reduces renin mRNA response to 24 h of reduced renal perfusion pressure (RPP). Seven occluder (O) (132.4 +/- 1.2 days gestation) and six control (C) (131.5 +/- 1.2 days gestation) fetuses underwent left renal denervation. Postoperatively, O fetuses experienced 24 h of reduced RPP by suprarenal aortic occlusion. Femoral arterial bloo...

Journal: :American journal of physiology. Endocrinology and metabolism 2002
Alison C Holloway David C Howe Gabriel Chan Vicki L Clifton Roger Smith John R G Challis

We hypothesized that urocortin might be produced in the pituitary of the late-gestation ovine fetus in a manner that could contribute to the regulation of ACTH output. We used in situ hybridization and immunohistochemistry to identify urocortin mRNA and protein in late-gestation fetal pituitary tissue. Levels of urocortin mRNA rose during late gestation and were associated temporally with risin...

Journal: :American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 1998

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