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Factors affecting luteal oxytocin synthesis and/or secretion by the ovine and bovine corpus luteum

Creator:: Paslay, Elizabeth M.
Abstract:: Experiments were conducted to determine whether endogenous progesterone regulates synthesis and/or secretion of luteal oxytocin (OT). In experiment 1, mature ewes (n=5 per group) were assigned randomly to control or mifepristone (RU 486) treatment groups. Ewes were injected twice daily s.c. with vehicle or 10 mg RU 486 from days...
Resource Type:: Masters Thesis
Full Text:: Oxytocin Synthesis and/or Secretion by the Ovine and Bovine Corpus Luteum. Abstract approved Fredrick

Involvement of myristoylated alanine-rich c kinase substrate (MARCKS) protein in prostaglandin F2α- induced secretion of oxytocin by the bovine corpus luteum

Creator:: Salli, Ugur
Abstract:: Prostaglandin F₂α (PGF₂α), a stimulatory hormone of luteal oxytocin secretion, is known to activate protein kinase C (PKC); however, the intracellular signals that promote exocytosis of oxytocin remain to be elucidated. Myristoylated alanine-rich C kinase substrate (MARCKS), a protein specifically phosphorylated by PKC, crosslinks actin filaments associated with the inner...
Resource Type:: Dissertation
Full Text:: SUBSTRATE (MARCKS) PROTEIN IN PROSTAGLANDIN F2a INDUCED SECRETION OF OXYTOCIN BY THE BOVINE CORPUS LUTEUM

Physiology of the corpus luteum of the rat

Creator:: Shumake, James Michael
Abstract:: Rat luteal cells from functional and non-functional corpora lutea (corpora lutea rendered non-functional by hypophysectomy) were preserved for light and electron microscopy in Bouin's and glutaraldehyde-osmium fixation respectively. Material for electron microscopy was dehydrated with ethanol, embedded in Araldite and stained with lead hydroxide or uranyl acetate-lead citrate. Examination of...
Resource Type:: Masters Thesis
Full Text:: function of the corpus luteum with the secretion of progesterone (Everett, 1947). Small amounts of

Some effects of estradiol on ovine luteal function

Creator:: Akbar, Abulfatah Maqsood, 1938-
Abstract:: Some effects of 171β-estradiol on ovine luteal function were studied in five experiments. Estradiol injected into ewes on days 11 and 12 of the estrous cycle caused luteal regression in both intact and unilaterally hysterectomized ewes indicating that the presence of one uterine horn permits estradiol to cause luteolysis comparable...
Resource Type:: Dissertation
Full Text:: development of the corpus luteum and regulation of its secretion. In the pig, formation of the corpus luteum

Gonadotropin releasing hormone-induced alteration of corpus luteum function in beef heifers

Creator:: Rodger, Lynn Dian
Abstract:: Two experiments were conducted to evaluate the effects of gonadotropin releasing hormone (GnRH) on the function of the bovine corpus luteum during the estrous cycle. In Experiment 1, 10 heifers were assigned randomly into two groups with each heifer serving as her own control. Heifers in Group I (n=5) were...
Resource Type:: Masters Thesis
Full Text:: secretion of progesterone from the corpus luteum upon binding with its receptor. 23 Two different

Response of the bovine corpus luteum to exogenous gonadotropin-releasing hormone during the estrous cycle

Creator:: Martin, Teri L.
Abstract:: Two experiments were conducted to investigate the effects of gonadotropin-releasing hormone (GnRH), administered twice during the same estrous cycle, on bovine luteal function. Eight mature beef cows, each cow serving as her own control, were injected intravenously (i.v.) with saline on days 2 and 8 of the cycle (day of...
Resource Type:: Masters Thesis
Full Text:: responsible for regulating the secretion of LH. 3 FORMATION AND MORPHOLOGY OF THE CORPUS LUTEUM The CL

Oxytocin synthesis and release by the bovine corpus luteum

Creator:: Abdelgadir, Salaheldin Eltigani
Abstract:: Four experiments were conducted to determine oxytocin concen tration of bovine luteal tissue at different stages of the estrous cycle and to study the effects of prostaglandins F₂α (PGF₂α), E₂ (PGE₂), luteinizing hormone (LH), cycloheximide, colchicine and cytochalasin B on oxytocin synthesis and release in vitro. In experiment 1, luteal...
Resource Type:: Dissertation
Full Text:: Paracrine Regulation of Luteal Function 21 Cell Types of the Corpus Luteum 21 Synthesis and Secretion of

In Vivo and In Vitro effects of a cyclopropenoid fatty acid on progesterone synthesis by the ovine corpus luteum

Creator:: Tumbelaka, Ligaya
Abstract:: Two experiments were conducted to examine the effect of a cyclopropenoid fatty acid on luteal cell function. In Exp. 1, 12 mature ewes were mated to a fertile ram, assigned to two groups (n = 6/group) and laparotomized on day 18 of gestation. Ewes with corpora lutea (CL) in both...
Resource Type:: Masters Thesis
Full Text:: . Once the corpus luteum begins to develop, the secretion of progesterone by the CL in women (Lee et al

Bovine luteal oxytocin synthesis and secretion in vitro : effects of phorbol ester, calcium ionophore and indomethacin

Creator:: Cosola-Smith, Carrie A.
Abstract:: Experiments were conducted to examine the effects of a tumor-promoting phorbol ester, a calcium ionophore and indomethacin on bovine luteal oxytocin (OT) synthesis and secretion and progesterone secretion. Six 18-month-old crossbred beef heifers in Exp. 1 and five similar heifers in Exp. 2 were observed twice daily for estrus using...
Resource Type:: Masters Thesis
Full Text:: Steroidogenesis during Luteinization 16 Oxytocin Synthesis in the Luteinizing Follicle 19 The Corpus Luteum 20

Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

Creator:: Cortell, Anna Katherine
Resource Type:: Masters Thesis
Full Text:: corpus luteum function AN ABSTRACT OF THE THESIS OF Anna Katherine Cortell for the degree of Master of

ScholarsArchive@OSU

Factors affecting luteal oxytocin synthesis and/or secretion by the ovine and bovine corpus luteum

Involvement of myristoylated alanine-rich c kinase substrate (MARCKS) protein in prostaglandin F2α- induced secretion of oxytocin by the bovine corpus luteum

Physiology of the corpus luteum of the rat

Some effects of estradiol on ovine luteal function

Gonadotropin releasing hormone-induced alteration of corpus luteum function in beef heifers

Response of the bovine corpus luteum to exogenous gonadotropin-releasing hormone during the estrous cycle

Oxytocin synthesis and release by the bovine corpus luteum

In Vivo and In Vitro effects of a cyclopropenoid fatty acid on progesterone synthesis by the ovine corpus luteum

Bovine luteal oxytocin synthesis and secretion in vitro : effects of phorbol ester, calcium ionophore and indomethacin

Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

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