Pulsatile Bioactive Luteinizing Hormone Secretion in Men with Chronic Renal Failure and following Renal Transplantation

Nephron ◽  
1990 ◽  
Vol 56 (1) ◽  
pp. 66-72 ◽  
Author(s):  
J.A. Talbot ◽  
R.S. Rodger ◽  
W.R. Robertson
Keyword(s):  
Renal Failure ◽  
Renal Transplantation ◽  
Chronic Renal Failure ◽  
Luteinizing Hormone ◽  
Hormone Secretion ◽  
Luteinizing Hormone Secretion

Pulsatile immunoreactive and bioactive luteinizing hormone secretion in adolescents with chronic renal failure

1991 ◽  
Vol 5 (4) ◽  
pp. 566-571 ◽  
Author(s):  
F. Schaefer ◽  
C. Seidel ◽  
R. Mitchell ◽  
K. Sch�rer ◽  
W. R. Robertson ◽  
...  
Keyword(s):  
Renal Failure ◽  
Chronic Renal Failure ◽  
Luteinizing Hormone ◽  
Hormone Secretion ◽  
Luteinizing Hormone Secretion

Androgenic and oestrogenic steroid participation in feedback control of luteinizing hormone secretion in male sheep

1983 ◽  
Vol 102 (4) ◽  
pp. 499-504 ◽  
Author(s):  
M. J. D'Occhio ◽  
B. D. Schanbacher ◽  
J. E. Kinder
Keyword(s):  
Luteinizing Hormone ◽  
Pulse Generator ◽  
Hormone Secretion ◽  
Pulse Interval ◽  
Serum Concentrations ◽  
Luteinizing Hormone Secretion ◽  
Lh Release ◽  
Lh Secretion ◽  
Additional Feedback ◽  
Male Sheep

Abstract. The acute castrate ram (wether) was used as an experimental model to investigate the site(s) of feedback on luteinizing hormone (LH) by testosterone, dihydrotestosterone and oestradiol. At the time of castration, wethers were implanted subdermally with Silastic capsules containing either crystalline testosterone (three 30 cm capsules), dihydrotestosterone (five 30 cm capsules) or oestradiol (one 6.5 cm capsule). Blood samples were taken at 10 min intervals for 6 h 2 weeks after implantation to determine serum steroid concentrations and to characterize the patterns of LH secretion. Pituitary LH response to exogenous LRH (5 ng/kg body weight) were also determined at the same time. The steroid implants produced serum concentrations of the respective hormones which were either one-third (testosterone) or two-to-four times (dihydrotestosterone, oestradiol) the levels measured in rams at the time of castration. Non-implanted wethers showed rhythmic pulses of LH (pulse interval 40–60 min) and had elevated LH levels (16.1 ± 1.6 ng/ml; mean ± se) 2 weeks after castration. All three steroids suppressed pulsatile LH release and reduced mean LH levels (to below 3 ng/ml) and pituitary LH responses to LRH. Inhibition of pulsatile LH secretion by all three steroids indicated that testosterone as well as its androgenic and oestrogenic metabolites can inhibit the LRH pulse generator in the hypothalamus. Additional feedback on the pituitary was indicated by the dampened LH responses to exogenous LRH.

A study of luteinizing hormone secretion in the cow

Reproduction ◽  
1972 ◽  
Vol 28 (1) ◽  
pp. 135-136 ◽  
Author(s):  
L. Cummins ◽  
M. Blockey ◽  
J. Brown ◽  
Goding
Keyword(s):  
Luteinizing Hormone ◽  
Hormone Secretion ◽  
Luteinizing Hormone Secretion

Opioid Control of Luteinizing Hormone Secretion in Patients with Hirsutism and Hyperandrogenemia

1987 ◽  
Vol 23 (2) ◽  
pp. 117-121 ◽  
Author(s):  
Felice Petraglia ◽  
Susanna Golinelli ◽  
Gerardo d’Ambrogio ◽  
Giuseppina Comitini ◽  
Fabio Facchinetti ◽  
...  
Keyword(s):  
Luteinizing Hormone ◽  
Hormone Secretion ◽  
Luteinizing Hormone Secretion
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