Index Catalog // ScholarsArchive@OSU

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:: intravascular infusion of long chain fatty acids in nonpregnant ewes AN ABSTRACT OF THE THESIS OF Joan M

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:: prolactin with Kd values of 8.25 x 10 -11 + .68 M (uterus) and of 6.14 x 10 11 + .93 M (ovaries). The

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:: sliced and incubated for 2 h with 0.81nM 12-0-tetradecanoylphorbol 13-acetate (TPA), 1.62 nM TPA, 100p,M

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:: of the GnRH. I express my sincere gratitude to Judith Martin-Boesch and Kurt Boesch for their love

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
Full Text:: estradiol production originally proposed for the rat (Falck, 1959) are present (Armstrong et al., 1979

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:: their secretory function (Kilpatrick, Armstrong and Greep, 1964). Corpora lutea of the cyclic rat lose

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:: Science for providing the gilts and facilities. My sincere thanks are extended to Dr. M. W. Montgomery

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:: Armstrong, 1968; Moor, 1977). Follicle steroidogenesis begins as the specialized cells that comprise the

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

Creator:: Hazzard, Timothy McLagan
Resource Type:: Dissertation
Full Text:: of the granulosa (cumulus oophorus) cells surrounding the oocyte (Gore-Langton and Armstrong

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:: , 1964; Hall and Koritz, 1965b; Armstrong and Black, 1966, 1968; Hansel, 1966). These aforementioned

Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

Creator:: Cortell, Anna Katherine
Resource Type:: Masters Thesis
Full Text:: protein; P < 0.05). Binding affinities of the LH receptor were similar (mean Kd = 2.45 x 10-13 M and

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:: progesterone (Lipner and Greep, 1971) or prostaglandin (Armstrong, 1975) synthesis prevented ovulation

Some ovarian characteristics of the postpartum rabbit

Creator:: Gjesvold, James Allen
Abstract:: The effects of suckling on several ovarian characteristics were studied in postpartum rabbits. Ovarian weight was found to be significantly greater in rabbits suckled for twelve days than in nonsuckled rabbits autopsied at a similar interval postpartum or in a third group autopsied at parturition. There were no significant differences...
Resource Type:: Masters Thesis
Full Text:: marked shortening of the estrous cycle (Armstrong and Hansel, 1959; Hansel and Wagner, 1960; Anderson

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:: vitro progesterone production occurs in response to LH by bovine (Armstrong and Black, 1966; William

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

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

Cellular mechanisms of altered bovine luteal function in response to exogenous gonadotropin-releasing hormone

Creator:: Bertrand, Jennifer Elaine
Abstract:: To determine whether membrane-related events may be involved in attenuated luteal function after gonadotropin-releasing hormone (GnRH) administration, corpora lutea (CL) were removed from 10 beef heifers on day 7 of the estrous cycle after i.v. injection of GnRH or saline on day 2 of the cycle. Luteal slices were incubated...
Resource Type:: Dissertation
Full Text:: organization (Gore-Langton and Armstrong, 1994). All follicles begin as primordial or primary follicles

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:: process (Armstrong and Zamecnik, 1974; LeMaire, 1977; Espey et al., 1989). Labhsetwar (1972

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:: for the donation of biological grade NIH-bLH-B-10 and Dr. Myron Brown and Dr. C. M. Tucker, Sanofi

Prostaglandin F α-induced signal transduction mechanism regulating the secretion of oxytocin from the bovine corpus lutem

Creator:: Orwig, Kyle Edwin
Resource Type:: Dissertation
Full Text:: positively correlated with plasma level of OT at time of CL removal (r = 0.82, p<0.0025). Luteal m-calpain

Gonadotropin releasing hormone-induced secretion of luteinizing hormone during the milk ejection reflex in the postpartum beef cow

Creator:: Jaeger, John Ralph
Abstract:: A study was conducted to determine the effect of the milk ejection reflex on exogenous gonadotropin releasing hormone (GnRH)- induced release of luteinizing hormone (LH) after short term calf removal. Twenty-four postpartum multiparous beef cows were assigned 3 randomly to groups arranged in a 2[superscript 3] factorial design to be...
Resource Type:: Masters Thesis
Full Text:: . To my fiancee, Donagene M. Anderson, I extend my sincerest thanks and appreciation for being my

Characteristics of preovulatory follicles of pubertal gilts

Creator:: Smith, Gary Daniel
Abstract:: Two experiments were conducted utilizing crossbred gilts to evaluate follicle characteristics at puberty and to determine the effect of exogenous estradio1-17β on embryonic mortality in the mature cycling gilt. Experiment 1 was conducted to compare preovulatory follicle numbers and sizes and follicular fluid concentrations of progesterone, estradio1-17β, plasminogen activator and...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

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

Endocrinology of fur growth and reproduction in mink

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

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

Embryonic mortality in pubertal gilts

Some effects of estradiol on ovine luteal function

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

Physiological factors affecting ovine uterine estrogen and progesterone receptor concentrations

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

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

Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

Oxytocin synthesis and release by the bovine corpus luteum

Some ovarian characteristics of the postpartum rabbit

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

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

Cellular mechanisms of altered bovine luteal function in response to exogenous gonadotropin-releasing hormone

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

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

Prostaglandin F α-induced signal transduction mechanism regulating the secretion of oxytocin from the bovine corpus lutem

Gonadotropin releasing hormone-induced secretion of luteinizing hormone during the milk ejection reflex in the postpartum beef cow

Characteristics of preovulatory follicles of pubertal gilts

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