Index Catalog // ScholarsArchive@OSU

Nongenomic inhibition of oxytocin binding by progesterone in ovine uteri

Creator:: Dunlap, Kathrin Anson
Abstract:: Effects of progesterone (P₄) and mifepristone (RU 486) on binding of oxytocin (OT) to its ovine uterine receptor (OTR) were studied in two experiments. Two additional experiments were conducted to evaluate specific binding sites for P4 in endometrial plasma membranes. In Exp. 1, ovariectomized ewes were injected with estradiol-17β (E₂)...
Resource Type:: Masters Thesis
Full Text:: OTR (p<0.01) and treatment with RU 486 blocked the effect of P4 (p>O.05). In Exp. 3, membranes

Concerted actions of ovarian steroids and prostaglandin F₂a on smooth muscle contractility of ovine and bovine uterine arteries

Creator:: Ford, Stephen Paul
Abstract:: The role of estradiol- 17β, progesterone and prostaglandin F₂α (PGF₂α) in altering contractility of uterine vascular smooth muscle was investigated. A segment of uterine artery (3. 5 cm) supplying each uterine horn of ewes and heifers were removed at necropsy and perfused with oxygenated Krebs Henseleit Solution prior to initiating...
Resource Type:: Dissertation
Full Text:: . EXPERIMENT I: Uterine arteries from unilaterally-ovulating pregnant (P) and nonpregnant (NP) ewes and

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:: concentrations of P4 of SA-treated ewes differed from those of OA-injected control ewes (P<0.01). Luteal tissue

Intrauterine migration of the porcine embryo

Creator:: Pope, William Frederick
Abstract:: The mechanism(s) involved with intrauterine migration of the porcine embryo was investigated. Twenty-four gilts on Days 6, 9 and 12 of gestation (Day 0 = 1st day of estrus) were utilized to examine the relationship between myometrial activity and intrauterine migration. On Day 2, embryos were flushed from one oviduct...
Resource Type:: Dissertation
Full Text:: side interaction, P<.10). Uterine flushings contained a short-acting component that mimicked, in part

Pituitary and uterine control of ovarian function in the gilt and ewe

Creator:: Chakraborty, Prabir Kumar, 1936-
Abstract:: The role of the pituitary gland and uterus in regulating ovarian function in the estradiol-treated gilt and ewe was investigated in two experiments. Pituitary gonadotropin content, ovarian follicular development and corpus luteum function were studied following daily intramuscular injection of seven gilts with 7 mg of 17β-estradiol from day 11...
Resource Type:: Dissertation
Full Text:: estradiol caused an increase in pituitary FSH and LH activity (P < .01, for each gonadotropin) and

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:: , 4.13 vs treated 2.50, 2.82, 3.17 ng/ml, respectively, P < .03). Length of the estrous cycle did not

Secretion of luteinizing hormone in response to exogenous melatonin in postpartum beef cows and ovariectomized beef heifers

Creator:: Sucheta, Susan Leers
Resource Type:: Dissertation
Full Text:: continued at 15 min intervals for 2.5 hr. Weekly daytime (P< .01) but not midnight (P> .05) concentrations

Altered ovarian and uterine function in response to intravascular infusion of long chain fatty acids in nonpregnant ewes

Creator:: Burke, Joan M.
Resource Type:: Dissertation
Full Text:: declined with time after infusion was terminated (treatment x hour interaction; P4, p = 0.004; TC, p

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:: the corpus luteum in the ewe and cow (for review see Goding, 1974; Horton and Poyser, 1976; Hansel

Endocrine regulation of uterine physiology in mink

Creator:: Slayden, Ov Daniel
Resource Type:: Dissertation
Full Text:: of E 2 and concentrations of PR but had no effect on levels of P 4' uterine weight, glucose

ScholarsArchive@OSU

Nongenomic inhibition of oxytocin binding by progesterone in ovine uteri

Concerted actions of ovarian steroids and prostaglandin F₂a on smooth muscle contractility of ovine and bovine uterine arteries

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

Intrauterine migration of the porcine embryo

Pituitary and uterine control of ovarian function in the gilt and ewe

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

Secretion of luteinizing hormone in response to exogenous melatonin in postpartum beef cows and ovariectomized beef heifers

Altered ovarian and uterine function in response to intravascular infusion of long chain fatty acids in nonpregnant ewes

Oxytocin synthesis and release by the bovine corpus luteum

Endocrine regulation of uterine physiology in mink

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