Index Catalog // ScholarsArchive@OSU

Utilization of lipid by primiparous beef heifers during the postpartum period

Creator:: Filley, Shelby Jean
Resource Type:: Dissertation
Full Text:: members, Frank Moore and Phil Whanger and my Graduate Council Member, Neil Christensen, for always

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:: Kronstad, Dr. Frank Moore and Dr. Henry Schaup for their participation in my degree program and discussion

Endocrinology of fur growth and reproduction in mink

Creator:: Rose, William Jackson
Abstract:: Experiments were conducted to determine: 1) the effects of exogenous melatonin and reduced photoperiod on molting and growth of the winter pelage (fur) and 2) whether changes in serum prolactin levels of treated and control mink during this same period were correlated with growth of winter fur. Adult and kit...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF WILLIAM J. ROSE for the degree of DOCTOR OF PHILOSOPHY in ANIMAL

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:: . Gratitude is also extended to Dr. Wilbert Gamble, Dr. Frank Moore, Dr. Steve Davis and Dr. Wilson

Nongenomic action of progesterone inhibits oxytocin signaling through the ovine oxytocin receptor

Creator:: Bishop, Cecily V.
Abstract:: Experiments were conducted to characterize the nongenomic effects of progesterone (P4) on binding of oxytocin (OT) to the ovine oxytocin receptor (OTR) and signal transduction. The dose-response relationship of P4 to OT binding to the OTR in endometrium was examined. Progesterone interfered with the binding of OT to the OTR...
Resource Type:: Dissertation
Full Text:: appreciation to Dr Frank Moore and laboratory for their gift of the cell lines utilized in these experiments

Physiological factors affecting ovine uterine estrogen and progesterone receptor concentrations

Creator:: Prater, Patrice L.
Abstract:: Two experiments were conducted to determine whether in ewes uterine concentrations of estrogen and progesterone receptors are affected by the presence of a conceptus or by the hormonal milieu associated with extremes in photoperiod to which ewes are exposed. In Exp.1, nine mature ewes were unilaterally ovariectomized by removing an...
Resource Type:: Masters Thesis
Full Text:: and Moore, 1976). Progesterone can function successfully if cells of the reproductive organ have

Embryonic and hormonal control of ovine uterine arterial constriction

Creator:: Pope, William Frederick
Abstract:: The role of the conceptus and ovarian hormones in regulating ovine uterine vasoconstriction was investigated. The uterine artery ipsilateral to the ovary bearing the corpus luteum in ten nonpregnant and eight pregnant ewes was utilized in two experiments. Arteries of nonpregnant and pregnant ewes were removed at necropsy on day...
Resource Type:: Masters Thesis
Full Text:: (Moore et al., 1969), is maximal (Scaramuzzi et al., 1970). This increase in systemic estradiol

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

Plasma membrane composition and luteinizing hormone receptors of ovine corpora lutea during early pregnancy

Creator:: Zelinski, Mary Beth
Abstract:: The lipid composition of plasma membranes of corpora lutea was examined to determine whether changes in this organelle occur during regression and early pregnancy in the ewe. Forty ewes were assigned to be necropsied on days 13 or 15 of the estrous cycle (D13-NP and D15-NP) or pregnancy (D13-P and...
Resource Type:: Dissertation
Full Text:: confirmed the CL, rather than the posterior pituitary gland, as the major source of the surges (Moore et al

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

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

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

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:: Redacted for privacy Head of Department of Animal Science Redacted for privacy J Dean of graduate School

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:: by the ovaries during the estrous cycle is estradiol- 17[3 (Moore et al, , 1969). The concentra

Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

Creator:: Cortell, Anna Katherine
Resource Type:: Masters Thesis

Mechanisms of estradiol-17β-induced down-regulation of ovine uterine oxytocin receptors during the estrous cycle

Creator:: Hazzard, Timothy McLagan
Resource Type:: Dissertation

Corpus luteum function in hysterectomized and unilaterally hysterectomized ewes treated with gonadotropin-releasing hormone

Creator:: Whitmore, Diana L.
Resource Type:: Masters Thesis

Embryonic mortality in pubertal gilts

Creator:: Archibong, Anthony Effanga
Abstract:: An experiment was conducted to compare the reproductive performance and serum concentrations of progesterone and estrogen of mated first (n=18) and third (n=18) estrous gilts slaughtered in equal numbers on days 3, 15 and 30 postmating. Fertilization rate did not differ between mated first and third estrous gilts. Embryonic survival...
Resource Type:: Dissertation

Some aspects of the mechanism of estrogen action in the uterus of the ewe

Creator:: Koligian, Karl Bruce
Abstract:: The binding of estrogen to endometrium and uterine arteries of the ewe was investigated by use of a [³H]estradiol exchange assay and by incubating whole tissue aliquants with [³ H]estradiol, a method which permits quantification of bound estrogen translocated from the cytoplasm to the nucleus. Five ewes were necropsied on...
Resource Type:: Dissertation

Factors affecting prolactin secretion in the African elephant

Creator:: Bechert, Ursula S.
Abstract:: Prolactin (PRL) is a peptide hormone that is involved in a number of diverse physiologic roles, particularly with respect to reproduction, including: influencing sexual and parental behaviors, onset of puberty, regulation of seasonal reproduction, follicular maturation, ovulation, luteinization and corpus luteum (CL) function, steroidogenesis, mammary gland development and lactation, testicular...
Resource Type:: Dissertation

ScholarsArchive@OSU

Utilization of lipid by primiparous beef heifers during the postpartum period

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

Endocrinology of fur growth and reproduction in mink

Oxytocin synthesis and release by the bovine corpus luteum

Nongenomic action of progesterone inhibits oxytocin signaling through the ovine oxytocin receptor

Physiological factors affecting ovine uterine estrogen and progesterone receptor concentrations

Embryonic and hormonal control of ovine uterine arterial constriction

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

Plasma membrane composition and luteinizing hormone receptors of ovine corpora lutea during early pregnancy

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

Intrauterine migration of the porcine embryo

Nongenomic inhibition of oxytocin binding by progesterone in ovine uteri

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

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

Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

Mechanisms of estradiol-17β-induced down-regulation of ovine uterine oxytocin receptors during the estrous cycle

Corpus luteum function in hysterectomized and unilaterally hysterectomized ewes treated with gonadotropin-releasing hormone

Embryonic mortality in pubertal gilts

Some aspects of the mechanism of estrogen action in the uterus of the ewe

Factors affecting prolactin secretion in the African elephant

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