Sleep-Associated Augmentation and Synchronization of Luteinizing Hormone Pulses in Adult Men

1991 ◽  
Vol 54 (3) ◽  
pp. 192-195 ◽  
Author(s):  
Lorenz Fehm ◽  
Jens Clausing ◽  
Werner Kern ◽  
Reinhard Pietrowsky ◽  
Jan Born
Keyword(s):  
Luteinizing Hormone ◽  
Adult Men ◽  
Hormone Pulses

URINARY EXCRETION OF LUTEINIZING HORMONE IN BOYS AND ADULT MEN

1970 ◽  
Vol 46 (2) ◽  
pp. 229-236 ◽  
Author(s):  
N. SCIARRA ◽  
U. LEONE
Keyword(s):  
Luteinizing Hormone ◽  
Urinary Excretion ◽  
Haemagglutination Inhibition ◽  
Adult Child ◽  
Mean Value ◽  
Sharp Rise ◽  
Adult Men ◽  
Immunological Method ◽  
The Mean

SUMMARY The daily urinary excretion of luteinizing hormone (LH) was determined in 15 boys, aged 5–11 yr., and in 15 adult men, aged 18–65 yr., by an immunological method using the haemagglutination inhibition system. The hormone was detected in every subject investigated. The mean value for urinary LH excretion in boys was equivalent to 3·4 i.u./24 hr. (range 1·3–6·5) and was 29·3 i.u./24 hr. in adults (range 15·4–44·6). The mean adult: child ratio was 8·6. There was a significant increase in LH output with age in both the boys and the men; the rate of this increase was the same in both groups. However, there was a sharp rise in hormone output at about the onset of puberty.

IMMUNOLOGICAL DETERMINATION OF PITUITARY LUTEINIZING HORMONE IN THE URINE OF FERTILE AND POST-MENOPAUSAL WOMEN AND ADULT MEN

1962 ◽  
Vol 39 (4) ◽  
pp. 539-546 ◽  
Author(s):  
Leif Wide ◽  
Carl Gemzell
Keyword(s):  
Luteinizing Hormone ◽  
Haemagglutination Inhibition ◽  
Chorionic Gonadotrophin ◽  
Human Chorionic Gonadotrophin ◽  
Human Pituitary ◽  
Adult Men ◽  
Menopausal Women ◽  
Post Menopausal ◽  
Inhibition Reaction

ABSTRACT An immunological method to assay human pituitary luteinizing hormone (HPLH) in urine is described. It is based on the fact that HPLH crossreacts with human chorionic gonadotrophin (HCG) in an haemagglutination inhibition reaction between HCG-coated blood cells and rabbit HCG-antisera. During the menstrual cycle the excretion of HPLH reached a peak of 200–400 U per liter at the time of ovulation. In the urine of post-menopausal women the concentration of HPLH was between 100 and 400 U per liter. In the urine of adult men the concentration of HPLH was between 50 and 160 U per liter.

scholarly journals Statistical Evaluation of Coincident Prolactin and Luteinizing Hormone Pulses During the Normal Menstrual Cycle*

1988 ◽  
Vol 67 (4) ◽  
pp. 832-838 ◽  
Author(s):  
DONALD K. CLIFTON ◽  
SEZER AKSEL ◽  
WILLIAM J. BREMNER ◽  
ROBERT A. STEINER ◽  
MICHAEL R. SOULES
Keyword(s):  
Menstrual Cycle ◽  
Luteinizing Hormone ◽  
Statistical Evaluation ◽  
Normal Menstrual Cycle ◽  
Hormone Pulses

Effects of Prolactin and Prolactin Plus Luteinizing Hormone on Plasma Testosterone Levels in Normal Adult Men*

1978 ◽  
Vol 47 (2) ◽  
pp. 447-452 ◽  
Author(s):  
ROBERT T. RUBIN ◽  
RUSSELL E. POLAND ◽  
IRVING SOBEL ◽  
BARBARA B. TOWER ◽  
WILLIAM D. ODELL
Keyword(s):  
Luteinizing Hormone ◽  
Normal Adult ◽  
Plasma Testosterone ◽  
Testosterone Levels ◽  
Adult Men

Regulation of frequency of luteinizing hormone pulses by magnitude of acute change in circulating concentration of progesterone of female cattle

2004 ◽  
Vol 84 (3-4) ◽  
pp. 279-291 ◽  
Author(s):  
K.E Fike ◽  
F.N Kojima ◽  
B.R Lindsey ◽  
E.G.M Bergfeld ◽  
J.A Quintal-Franco ◽  
...  
Keyword(s):  
Luteinizing Hormone ◽  
Acute Change ◽  
Hormone Pulses ◽  
Female Cattle

Effects of acute stimulation with luteinizing hormone-releasing hormone (LRH) on biologically active and immunoreactive serum luteinizing hormone (LH) in pubertal boys

1984 ◽  
Vol 107 (3) ◽  
pp. 289-294 ◽  
Author(s):  
Vanna Montanini ◽  
Marco Francesco Celani ◽  
Gian Franco Baraghini ◽  
Cesare Carani ◽  
Paolo Marrama
Keyword(s):  
Luteinizing Hormone ◽  
Serum Levels ◽  
Biologically Active ◽  
Acute Administration ◽  
Adult Men ◽  
Serum Luteinizing Hormone ◽  
Significant Difference ◽  
The Mean ◽  
Pubertal Boys

Abstract. The responses of biologically active LH (BIO-LH) and immunoreactive LH (RIA-LH) to acute stimulation with LRH (0.1 mg iv) were studied in 8 pubertal boys (9–15 years, 2nd–4th Tanner's stage), and in 10 healthy adult men (20–46 years). Serum levels of BIO-LH were assessed by an in vitro bioassay method based upon testosterone production by mechanically dispersed mouse Leydig cell preparations. In pubertal boys the mean BIO-LH/RIA-LH (B/I) ratio of basally secreted LH was significantly lower than in adult men (1.2 ± 0.2 (sem) and 2.2 ± 0.2 respectively, P < 0.01). After acute administration of LRH the mean B/I ratio of circulating LH showed a significant increase from the basal value in pubertal boys (2.6 ± 0.2, P < 0.01 vs basal values), whereas no significant difference in LH B/I ratios were demonstrated throughout the study period in adult men (2.1 ± 0.1, P = NS vs basal values). In agreement with this finding, the mean relative maximum response for BIO-LH (BIO-LH Δ%) was higher in pubertal boys than in adult men (1702.7 ± 500.3 and 499.6 ± 65.4% respectively, P < 0.05), whereas the mean RIA-LH Δ% was similar in both groups (609.1 ± 85.1 and 534.1 ± 75.5% respectively, P = NS). No significant differences were shown in the BIO-LH Δ area between pubertal boys (4.9 ± 0.9 area units × 103) and adult men (6.7 ± 1.2 area units × 103, P = NS), whereas the mean RIA-LH Δ area was significantly lower in the former group (1.9 ± 0.4 area units × 103 vs 3.2 ± 0.5 area units × 103, P < 0.05). Our study emphasizes that the pubertal pituitary possesses a greater responsiveness for BIO-LH than the adult pituitary, and that in pubertal boys acute stimulation with LRH evokes the release of a more bioactive form of LH.

Low-dose dopamine infusions do not ablate luteinizing hormone pulses in women

1988 ◽  
Vol 159 (4) ◽  
pp. 898-903 ◽  
Author(s):  
Mary C. Martin ◽  
Scott E. Monroe ◽  
Richard I. Weiner ◽  
Robert B. Jaffe
Keyword(s):  
Luteinizing Hormone ◽  
Low Dose ◽  
Hormone Pulses
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