Zobrazeno 1 - 10 of 47 pro vyhledávání: '"R.T Talbot"'
1
Photoperiodic Control of the Concentration of Luteinizing Hormone, Prolactin and Testosterone in the Male Emu (Dromaius novaehollandiae ), a Bird that Breeds on Short Days
Autor: Graeme Martin, Peter J. Sharp, R.T. Talbot, Dominique Blache, K.M. Williams, Margaret Blackberry
Publikováno v: Journal of Neuroendocrinology. 13:998-1006
The objective of this study was to establish, for a short-day breeding bird, the male emu, whether the breeding season is principally controlled by changes in photoperiod, and to investigate the endocrine mechanisms involved. Two groups of adult male
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ccfdeac24081787210a7335f8b6a99a5
https://doi.org/10.1046/j.1365-2826.2001.00722.x
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2
Passive immunization against chicken vasoactive intestinal polypeptide suppresses plasma prolactin and crop sac development in incubating ring doves
Autor: R. W. Lea, R.T Talbot, Peter J. Sharp
Publikováno v: Hormones and Behavior. 25:283-294
Passive immunization of incubating ring doves with daily injections of sheep anti-chicken vasoactive intestinal polypeptide (cVIP) serum prevented the proliferation of crop sac tissue observed in control doves given nonimmune serum. Daily injections
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0e46f19f1f1e5dfd62623c9802d2461
https://doi.org/10.1016/0018-506x(91)90002-y
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3
Absence of an effect of naloxone, an opioid antagonist, on luteinizing hormone release in vivo and luteinizing hormone-releasing hormone I release in vitro in intact, castrated, and food restricted cockerels
Autor: Peter J. Sharp, Ian C. Dunn, R.T. Talbot, P. Lal
Publikováno v: General and Comparative Endocrinology. 77:239-245
The possibility that the tonic secretion of luteinizing hormone (LH) and chicken luteinizing hormone-releasing hormone I (LHRH-I) is regulated by an inhibitory action of endogenous opioid peptides was investigated in cockerels using the opiate recept
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c4a67c935167f1ef9990cd4b7b68c19
https://doi.org/10.1016/0016-6480(90)90308-9
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4
The chicken leptin gene: has it been cloned?
Autor: Miriam Friedman-Einat, Guy Horev, G. Girishvarma, R.T. Talbot, Timothy Boswell, Peter J. Sharp, Ian C. Dunn
Publikováno v: General and comparative endocrinology. 115(3)
The DNA sequence of a chicken leptin gene that shares 95% nucleotide similarity with the mouse leptin sequence has been recently reported (Taouis et al., 1998, Gene 208, 239–242). Experiments have been performed independently in two laboratories to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09fe3e7cea58b65e4ec618d70f9557d4
https://pubmed.ncbi.nlm.nih.gov/10480986
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5
Endocrine and testicular changes in a short-day seasonally breeding bird, the emu (Dromaius novaehollandiae), in southwestern Australia
Autor: Peter J. Sharp, Graeme Martin, Geoffrey T. Meyer, R.T. Talbot, Irek Malecki, P. O'Malley
Publikováno v: Animal reproduction science. 53(1-4)
Seasonal changes in testicular morphology and blood plasma concentrations of LH, testosterone, and prolactin are described for captive male emus in southwestern Australia. Testicular mass and testicular testosterone did not differ between the non-bre
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa54588cabb557031f4973f1de95dd38
https://pubmed.ncbi.nlm.nih.gov/9835373
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6
Photorefractoriness in European starlings (Sturnus vulgaris) is not dependent upon the long-day-induced rise in plasma thyroxine
Autor: Peter J. Sharp, R.T. Talbot, L.M. Glennie, George E. Bentley, Alistair Dawson, Arthur R. Goldsmith
Publikováno v: General and comparative endocrinology. 107(3)
Transfer of intact, photosensitive starlings from short to long days causes an increase in plasma thyroxine and gonadal maturation and later induces photorefractoriness. Thyroidectomy of starlings prevents the induction of photorefractoriness. This s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc4d7c56efd620b262d2eb54e5cd0450
https://pubmed.ncbi.nlm.nih.gov/9268624
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8
Pituitary prolactin messenger ribonucleic acid levels in incubating and laying hens: effects of manipulating plasma levels of vasoactive intestinal polypeptide
Autor: Peter J. Sharp, Mark C. Hanks, Helen Sang, R.T. Talbot, R. J. Sterling
Publikováno v: Endocrinology. 129(1)
Pituitary PRL messenger RNA levels in hens, measured by dot-blot hybridization, correlated directly with concentrations of plasma PRL, being 3-fold higher in incubating than in laying birds. Nest deprivation of incubating hens for 24 h caused a rapid
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::869f2d06c0218d9ed61eb49617672545
https://pubmed.ncbi.nlm.nih.gov/2055202
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9
Aspects of the neuroendocrine control of ovulation and broodiness in the domestic hen
Autor: R. J. Sterling, Peter J. Sharp, Michael C. Macnamee, T.R. Hall, R.T. Talbot
Publikováno v: Journal of Experimental Zoology. 232:475-483
The neuroendocrine control of ovulation and broodiness in the domestic hen involves complex interactions between hypothalamic neuropeptides, neurotransmitters, and ovarian steroids which regulate the secretion of luteinizing hormone (LH) and prolacti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3423f41f22196ecc8a60b0b4065911fd
https://doi.org/10.1002/jez.1402320314
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10
Steroidogenic relationships of gonadotrophin hormones in the ovary of the hen (Gallus domesticus)
Autor: F.E. Robinson, F.J. Cunningham, R.T. Talbot, Robert J. Etches, Peter J. Sharp, W. H. Burke, Susumu Ishii, K.-W. Cheng, C.E. Anderson-Langmuir
Publikováno v: General and comparative endocrinology. 69(3)
The effects of chicken luteinizing hormone (cLH: IRC-2 and PRC AE1-1), turkey LH (B221B and HS-5-18), bovine follicle-stimulating hormone (bFSH: HS-2-17), chicken FSH (cFSH: PRC DC3(2) and AGCQSQ113445C), and turkey FSH (B150A and HS-1-153) on steroi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef90d8ed5e8dc5b219a71e413ad10d0e
https://pubmed.ncbi.nlm.nih.gov/3129332
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