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Relevant bibliographies by topics / Gonadotrophin secretion

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Academic literature on the topic 'Gonadotrophin secretion'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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Journal articles on the topic "Gonadotrophin secretion"

1

Meeran, Dawud, Henryk F. Urbanski, Susan J. Gregory, Julie Townsend, and Domingo J. Tortonese. "Developmental Changes in the Hormonal Identity of Gonadotroph Cells in the Rhesus Monkey Pituitary Gland." Journal of Clinical Endocrinology & Metabolism 88, no. 6 (2003): 2934–42. http://dx.doi.org/10.1210/jc.2002-021001.

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To help elucidate the regulatory mechanism responsible for divergent gonadotrophin secretion during sexual maturation, we examined the gonadotroph population and hormonal identity of gonadotroph subtypes in pituitary glands of juvenile (age, 1.7 ± 0.2 yr) and adult (age, 12.3 ± 0.8 yr) male rhesus monkeys (Macacca mulatta). Serum LH and testosterone concentrations were, respectively, 3 and 7 times lower in juveniles than in adults, thus confirming the different stages of development. Immunohistochemistry revealed that the proportion of LH gonadotrophs in relation to the total pituitary cell po

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2

Tortonese, Domingo J., Susan J. Gregory, Rebecca C. Eagle, Carolyne L. Sneddon, Claire L. Young, and Julie Townsend. "The equine hypophysis: a gland for all seasons." Reproduction, Fertility and Development 13, no. 8 (2001): 591. http://dx.doi.org/10.1071/rd01066.

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The intrahypophysial mechanisms involved in the control of gonadotrophin secretion remain unclear. In the horse, a divergent pattern of gonadotrophins is observed at different stages of the reproductive cycle in response to a single secretagogue (gonadotrophin-releasing hormone), and dramatic changes in fertility take place throughout the year in response to photoperiod. This species thus provides a useful model to investigate the regulation of fertility directly at the level of the hypophysis. A series of studies were undertaken to examine the cytological arrangements and heterogeneity of gon

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Kereilwe, Onalenna, Kiran Pandey, Vitaliano Borromeo, and Hiroya Kadokawa. "Anti-Müllerian hormone receptor type 2 is expressed in gonadotrophs of postpubertal heifers to control gonadotrophin secretion." Reproduction, Fertility and Development 30, no. 9 (2018): 1192. http://dx.doi.org/10.1071/rd17377.

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Preantral and small antral follicles may secret anti-Müllerian hormone (AMH) to control gonadotrophin secretion from ruminant gonadotrophs. The present study investigated whether the main receptor for AMH, AMH receptor type 2 (AMHR2), is expressed in gonadotrophs of postpubertal heifers to control gonadotrophin secretion. Expression of AMHR2 mRNA was detected in anterior pituitaries (APs) of postpubertal heifers using reverse transcription–polymerase chain reaction. An anti-AMHR2 chicken antibody was developed against the extracellular region near the N-terminus of bovine AMHR2. Western blotti

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Einspanier, A., and J. K. Hodges. "LH- and chorionic gonadotrophin-stimulated progesterone release in vitro by intact luteal tissue of the marmoset monkey (Callithrix jacchus)." Journal of Endocrinology 141, no. 3 (1994): 403–9. http://dx.doi.org/10.1677/joe.0.1410403.

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Abstract The application of an in vitro microdialysis system (MDS) for studies on the gonadotrophic control of luteal progesterone secretion in the marmoset monkey is described. Luteal tissue collected from a total of six animals (9 ± 1 days after ovulation) was perfused with Ringer solution (without and with lipoprotein, 0·6 μg/ml). The tissue was exposed to repeated applications of human LH (hLH) and human chorionic gonadotrophin (hCG) (1, 10 and 100 IU/ml) each of 60 min duration. Perfusate was collected in 15-min fractions and assayed for progesterone content. Results showed that addition

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Rulli, Susana B., and Ilpo Huhtaniemi. "What have gonadotrophin overexpressing transgenic mice taught us about gonadal function?" Reproduction 130, no. 3 (2005): 283–91. http://dx.doi.org/10.1530/rep.1.00661.

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The two gonadotrophins, follicle-stimulating hormone and luteinising hormone, are pivotal regulators of the development and maintenance of normal fertility by maintaining testicular and ovarian endocrine function and gametogenesis. Too low gonadotrophin secretion, i.e. hypogonadotrophic hypogonadism, is a common cause of infertility. But there are also physiological and pathophysiological conditions where gonadotrophin secretion and/or action are either transiently or chronically elevated, such as pregnancy, pituitary tumours, polycystic ovarian syndrome, activating gonadotrophin receptor muta

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Matson, Christine, and B. T. Donovan. "Acute effects of GnRF-induced gonadotrophin secretion upon ovarian steroid secretion in the ferret." Acta Endocrinologica 111, no. 3 (1986): 373–77. http://dx.doi.org/10.1530/acta.0.1110373.

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Abstract. The effects of an increase in endogenous gonadotrophin secretion on the production of oestradiol, progesterone, androstenedione and testosterone by the ovaries of anaesthetized anoestrous and oestrous ferrets were followed. Gonadotrophin secretion was enhanced by the injection of gonadotrophin releasing factor (GnRF), and serial blood samples were collected over 9 h for hormone assay. Thyrotrophic hormone releasing factor (TRF) or acetic acid were injected for control purposes. The plasma content of oestradiol in oestrous females was significantly higher than during anoestrus, but se

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7

Daniels, M., P. Newland, J. Dunn, P. Kendall-Taylor, and M. C. White. "Long-term effects of a gonadotrophin-releasing hormone agonist ([d-Ser(But)6]GnRH(1–9)nonapeptide-ethylamide) on gonadotrophin secretion from human pituitary gonadotroph cell adenomas in vitro." Journal of Endocrinology 118, no. 3 (1988): 491–96. http://dx.doi.org/10.1677/joe.0.1180491.

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ABSTRACT We have studied the effects of TRH and native gonadotrophin-releasing hormone (GnRH), and of a GnRH agonist (Buserelin; [d-Ser(But)6]GnRH(1–9) nonapeptide-ethylamide), on LH, FSH, α subunit and LH-β subunit secretion from three human gonadotrophin-secreting pituitary adenomas in dispersed cell culture. During a 24 h study, treatment with 276 nmol TRH/1 resulted in a significant (P < 0·05) stimulated release of FSH and α subunit from all three adenomas, and LH from the two adenomas secreting detectable concentrations of this glycoprotein; treatment with 85 nmol GnRH/l significantly

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Hanson, P. L., S. J. B. Aylwin, J. P. Monson, and J. M. Burrin. "FSH secretion predominates in vivo and in vitro in patients with non-functioning pituitary adenomas." European Journal of Endocrinology 152, no. 3 (2005): 363–70. http://dx.doi.org/10.1530/eje.1.01854.

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Objective: Non-functioning pituitary adenomas (NFPAs) are characterised by the lack of symptoms of hormone hypersecretory syndromes but in vitro studies have demonstrated that tumour cells may stain for gonadotrophins and/or their α- or β-subunits. In this study, we aimed to examine the pattern of secretion of LH and FSH from a series of pituitary adenomas cultured in vitro and where data were available to relate the results to pre-operative serum gonadotrophin levels. Methods: The in vitro secretion of LH and FSH was measured from 46 cultured NFPAs and compared with pre-operative serum gonado

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Thomas, G. B., A. S. McNeilly, F. Gibson, and A. N. Brooks. "Effects of pituitary-gonadal suppression with a gonadotrophin-releasing hormone agonist on fetal gonadotrophin secretion, fetal gonadal development and maternal steroid secretion in the sheep." Journal of Endocrinology 141, no. 2 (1994): 317–24. http://dx.doi.org/10.1677/joe.0.1410317.

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Abstract In order to investigate the regulation of the hypothalamo-pituitary-gonadal axis during fetal development, sheep fetuses at day 70 of gestation were implanted subcutaneously with a biodegradable implant containing the longacting gonadotrophin-releasing hormone (GnRH) agonist, buserelin. The treatment of fetuses with a GnRH agonist throughout the last half of gestation (term=145 days) abolished the increase in plasma LH concentrations that was seen in 2-day-old control lambs in response to an injection of GnRH. This attenuated response was associated with corresponding reductions in th

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Antonio, Leen, Maarten Albersen, Jaak Billen, et al. "Testicular Vein Sampling Can Reveal Gonadotropin-Independent Unilateral Steroidogenesis Supporting Spermatogenesis." Journal of the Endocrine Society 3, no. 10 (2019): 1881–86. http://dx.doi.org/10.1210/js.2019-00180.

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Abstract Suppressed gonadotropins combined with high-normal serum testosterone concentrations in oligozoospermic men suggest either use of exogenous testosterone or presence of a testosterone-producing tumor. We describe the case of a 31-year-old man referred for primary infertility. Gonadotropins were undetectably low, but testosterone and estradiol were in the high-normal range. Semen analysis showed oligoasthenospermia. He denied using exogenous testosterone. Scrotal ultrasound showed microlithiasis and millimetric hypolucent lesions in the left testis but no intratesticular mass. Human cho

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Dissertations / Theses on the topic "Gonadotrophin secretion"

1

Honaramooz, Ali. "Neuroendocrinology of gonadotrophin secretion in prepubertal heifers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ37889.pdf.

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Durnin, Anne Theresa. "Secretory heterogeneity among anterior pituitary gonadotrophs." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358632.

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Wood, Sara C. "Ovarian regulation of pituitary gonadotrophin secretion in domestic ruminants." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333527.

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Buckler, Helen Margaret. "Gonadotrophin, inhibin and sex steroid secretion in disorders of ovulation." Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305188.

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Dodson, S. E. "Reproductive endocrinology of the heifer from birth to the peripubertal period." Thesis, University of Nottingham, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376401.

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Lewis, C. E. "Factors involved in control of gonadotrophin secretion by the anterior pituitary gland." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375271.

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Forsdike, Rachel Anne. "In utero development of sexually dimorphic gonadotrophin-releasing hormone (GnRH) secretion in sheep." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620917.

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Castillo, R. J. "Bioassay and isolation of bovine ovarian inhibin and its effects on gonadotrophin secretion." Thesis, University of Reading, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233158.

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9

Evans, Neil Price. "The regulation of gonadotrophin secretion following divergent selection for pituitary responsiveness to GnRH." Thesis, University of Edinburgh, 1991. http://hdl.handle.net/1842/19730.

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Divergent selection based on the LH response to a 5μg dose of GnRH, has created two lines of sheep which differ in their ability to release gonadotrophins in response to a GnRH challenge in both male and female lambs. Significant correlated between line differences have also been reported in female reproductive performance. The aim of this project was to investigate the regulation of gonadotrophin secretion in animals from the two lines, and to elucidate the primary site of the selected difference/s. Physiological studies of adult ewes and prepubertal ram lambs demonstrated that despite simila

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Lujan, Marla Elaine. "The effects of stimulating endogenous corticotrophin-releasing hormone on gonadotrophin secretion in rhesus monkeys." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63331.pdf.

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Books on the topic "Gonadotrophin secretion"

1

Gore, Andrea C. GnRH, the master molecule of reproduction. Kluwer Academic Publishers, 2002.

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Gore, Andrea C. GnRH, the master molecule of reproduction. Kluwer Academic Publishers, 2002.

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Gore, Andrea C. GnRH, the master molecule of reproduction. Kluwer Academic Publishers, 2002.

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4

Leeuw, Renato de. Regulation of gonadotropin secretion in the African catfish, Clarias gariepinus (Burchell) =: Regulatie van de gonadotroop hormoon Afgifte in de Afrikaanse meerval, Clarias gariepinus (Burchell). Drukkerij Elikwijk BV, 1985.

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5

Bower, Mark, Louise Robinson, and Sarah Cox. Endocrine and metabolic complications of advanced cancer. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199656097.003.0142.

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Cancer produces endocrine and metabolic complications in two ways. Firstly, the primary tumour or its metastases may interfere with the function of endocrine glands, kidneys, or liver by invasion or obstruction. Secondly, tumours may give rise to remote effects without local spread and these actions are termed paraneoplastic manifestations of malignancy. Generally, these paraneoplastic syndromes arise from secretion by tumours of hormones, cytokines, and growth factors, but also occur when normal cells secrete products in response to the presence of tumour. This chapter reviews the pathogenesi

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6

Butler, Gary, and Jeremy Kirk. Puberty and its disorders. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199232222.003.0018.

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Definition 44Physiology of normal puberty 46Pubertal staging 48Timing of puberty 52Premature sexual maturation 53Central precocious puberty (CPP) (gonadotropin-dependent precocious puberty) 54Abnormal patterns of gonadotropin secretion 56Gonadotropin-independent precocious puberty (GIPP) 57Virilization 58Delayed puberty 60Central causes of delayed puberty (both sexes) ...

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Butler, Gary, and Jeremy Kirk. Endocrine investigations and laboratory reference ranges. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199232222.003.0101.

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General guidelines 330GH provocation tests 331Tests for GH secretion 332IGF-1 generation test 334Oral glucose tolerance test for investigating excess GH secretion 335TRH test 336LHRH/GnRH (gonadotropin-releasing hormone) stimulation test 337Triple pituitary stimulation test 338Water deprivation test (WDT) 340...

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8

Jaeger, John Ralph. Gonadotropin releasing hormone-induced secretion of luteinizing hormone during the milk ejection reflex in the postpartum beef cow. 1986.

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9

B, Mahesh Virendra, ed. Regulation of ovarian and testicular function. Plenum Press, 1987.

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10

R, Rolland, Chadha Dev R, and Willemsen, Wilhelmus Nicolass Petrus, 1947-, eds. Gonadotropin down-regulation in gynecological practice: Proceedings of an international symposium held at the University of Nijmegen, the Netherlands, April 25 and 26, 1986. Liss, 1986.

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Book chapters on the topic "Gonadotrophin secretion"

1

Lincoln, Gerald. "Melatonin Modulation of Prolactin and Gonadotrophin Secretion." In Advances in Experimental Medicine and Biology. Springer US, 2002. http://dx.doi.org/10.1007/0-306-46814-x_16.

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2

Banks, P. J., H. M. Lloyd, and E. F. Scowen. "Gonadotrophin Excretion in Man." In Ciba Foundation Symposium - Anterior Pituitary Secretion (Book I of Colloquia on Endocrinology, Vol. 4). John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470718803.ch26.

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3

Dawson, Alistair. "Photoperiodic Control of Gonadotrophin-Releasing Hormone Secretion in Seasonally Breeding Birds." In Neural Regulation in the Vertebrate Endocrine System. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4805-8_10.

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4

Götz, Franziska, Wolfgang Rohde, and Günter Dörner. "Neuroendocrine Differentiation of Sex-Specific Gonadotrophin Secretion, Sexual Orientation and Gender Role Behaviour." In Heterotypical Behaviour in Man and Animals. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3078-3_7.

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Crooke, A. C. "The Influence of Certain Adrenergic and Cholinergic Drugs on Urinary Gonadotrophin output in Amenorrhœic Women." In Ciba Foundation Symposium - Anterior Pituitary Secretion (Book I of Colloquia on Endocrinology, Vol. 4). John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470718803.ch16.

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6

Genazzani, A. R., F. Petraglia, S. Angioni, et al. "Opioid Control of Gonadotropin Secretion." In Endorphins in Reproduction and Stress. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75797-6_1.

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Burger, H. G. "Regulation of Gonadotropin Secretion: A 1987 Perspective." In Neuroendocrine Perspectives. Springer New York, 1989. http://dx.doi.org/10.1007/978-1-4612-3478-4_13.

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Everett, John W. "Timing the Preovulatory Surge of Gonadotropin Secretion." In Neurobiology of Reproduction in the Female Rat. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83797-5_6.

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9

Flerkó, Béla, István Merchenthaler, and György Sétáló. "Short and Ultrashort Feedback Control of Gonadotropin Secretion." In Endocrinology and Physiology of Reproduction. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4899-1971-7_5.

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10

Leyendecker, G., and L. Wildt. "Hypothalamic control of gonadotropin secretion and ovarian function." In LH-RH and its Analogues, edited by Manfred Schmidt-Gollwitzer and Rosemarie Schley. De Gruyter, 1985. http://dx.doi.org/10.1515/9783110861488-004.

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