145 results on '"Clarke, I. J."'
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2. Regulation of the secretion of FSH in domestic ruminants
3. Stimulation of growth hormone by kisspeptin antagonists in ewes
4. The role of protein kinase C in GH secretion induced by GH-releasing factor and GH-releasing peptides in cultured ovine somatotrophs
5. Effects of vasopressin and elimination of corticotropin-releasing hormone-target cells on pro-opiomelanocortin mRNA levels and adrenocorticotropin secretion in ovine anterior pituitary cells
6. GH, GH-releasing factor and somatostatin in the growing lamb: sex differences and mechanisms for sex differences
7. Follistatin concentrations in male sheep increase following sham castration/castration or injection of interleukin-1β
8. Changes in the binding characteristics of the μ, δ and κ subtypes of the opioid receptor in the hypothalamus of the normal cyclic ewe and in the ovariectomised ewe following treatment with ovarian steroids
9. The testis is not the major source of circulating follistatin in the ram
10. Signal transduction systems employed by synthetic GH-releasing peptides in somatotrophs
11. The effects of GH-releasing peptide-6 (GHRP-6) and GHRP-2 on intracellular adenosine 3′,5′-monophosphate (cAMP) levels and GH secretion in ovine and rat somatotrophs
12. The role of neuropeptide Y (NPY) in the control of LH secretion in the ewe with respect to season, NPY receptor subtype and the site of action in the hypothalamus
13. Effects of ovarian steroids on hypothalamic opioid receptor subtypes in ovariectomized ewes: regional changes in density and affinity
14. Evidence that the switch from negative to positive feedback at the level of the pituitary gland is an important timing event for the onset of the preovulatory surge in LH in the ewe
15. IGF feedback effects on growth hormone secretion in ewes: evidence for action at the pituitary but not the hypothalamic level
16. Effects of hypothyroidism on the growth hormone axis in sheep
17. Effect of high-protein feed supplements on concentrations of growth hormone (GH), insulin-like growth factor-I (IGF-I) and IGF-binding protein-3 in plasma and on the amounts of GH and messenger RNA for GH in the pituitary glands of adult rams
18. Human recombinant inhibin A and testosterone act directly at the pituitary to suppress plasma concentrations of FSH in castrated rams
19. Dopamine D1 receptor analogues act centrally to stimulate prolactin secretion in ewes
20. Radioimmunoassay of FSH-suppressing protein in the ewe concentrations during the oestrous cycle and following ovariectomy
21. Gonadotrophin-releasing hormone and the control of ovulation rate by the FecB gene in Booroola ewes
22. Studies on the testicular source of inhibin and its route of secretion in rams: failure of the Leydig cell to secrete inhibin in response to a human chorionic gonadotrophin/LH stimulus
23. GnRH-induced gonadotrophin secretion in ovariectomized Booroola ewes with hypothalamic--pituitary disconnection
24. Effect of long-term hypophysectomy on ovarian follicle populations and gonadotrophin-induced adenosine cyclic 3',5'-monophosphate output by follicles from Booroola ewes with or without the F gene
25. Effects of modifying gonadotrophin-releasing hormone input before and after the oestrogen-induced LH surge in ovariectomized ewes with hypothalamo-pituitary disconnection
26. Analysis of the ratio of biological to immunological LH secreted during the oestrogen-induced LH surge in the ewe
27. Effects of the synthetic glucocorticoid dexamethasone on reproductive function in the ewe
28. Perinatal growth and plasma GH profiles in adolescent and adult sheep.
29. Influence of sex and gonadal status of sheep on cortisol secretion in response to ACTH and on cortisol and LH secretion in response to stress: importance of different stressors.
30. Chronic food-restriction alters the expression of somatostatin and growth hormone-releasing hormone in the ovariectomised ewe.
31. Progesterone and testosterone in combination act in the hypothalamus of castrated rams to regulate the secretion of LH.
32. Intracerebroventricular infusion of leptin elevates the secretion of luteinising hormone without affecting food intake in long-term food-restricted sheep, but increases growth hormone irrespective of bodyweight.
33. Tissue-specific regulation of gastrin-releasing peptide synthesis, storage and secretion by oestrogen and progesterone.
34. Central administration of corticotrophin releasing hormone but not arginine vasopressin stimulates the secretion of luteinizing hormone in rams in the presence and absence of testosterone.
35. The influence of sex and gonadectomy on the hypothalamo-pituitary-adrenal axis of the sheep.
36. Changes in the suppressive effects of recombinant inhibin A on FSH secretion in ram lambs during sexual maturation: evidence for alterations in the clearance rate of inhibin.
37. Suppression of the secretion of luteinizing hormone due to isolation/restraint stress in gonadectomised rams and ewes is influenced by sex steroids.
38. Seasonal changes in the negative feedback regulation of the secretion of the gonadotrophins by testosterone and inhibin in rams.
39. Sexual dimorphism of the somatotrophic axis.
40. Effects of vasopressin and elimination of corticotropin-releasing hormone-target cells on pro-opiomelanocortin mRNA levels and adrenocorticotropin secretion in ovine anterior pituitary cells.
41. Evidence for a change in oestradiol negative feedback and LH pulse frequency in post-partum ewes
42. SEXUAL DIFFERENTIATION OF THE BRAIN: ENDOCRINE AND BEHAVIOURAL RESPONSES OF ANDROGENIZED EWES TO OESTROGEN
43. Induction of ovulation in chronically hypophysectomized Booroola ewes
44. Hypothalamo-pituitary portal blood concentrations of -endorphin during suckling in the ewe
45. Ovarian and luteal blood flow, and peripheral plasma progesterone levels, in cyclic guinea-pigs
46. Induction of plasma LH surges and normal luteal function in acyclic post-partum ewes by the pulsatile administration of LH-RH
47. GnRH pulse frequency determines LH pulse amplitude by altering the amount of releasable LH in the pituitary glands of ewes
48. The oestrogen-induced surge of LH requires a 'signal' pattern of gonadotrophin-releasing hormone input to the pituitary gland in the ewe
49. Follicular growth and regression during the 8 days after hypophysectomy in sheep
50. Prolonged secretion of prolactin in response to thyrotrophin-releasing hormone after hypothalamo-pituitary disconnection in the ewe
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