Abstract
To identify the developmental changes in monthly urinary gonadotropin and ovarian hormone excretion, consecutive 30-d first morning void urinary specimens were collected from 36 normal girls, one normal woman, and 15 female patients with idiopathic precocious puberty. Of these children, three normal girls and three patients with precocious puberty volunteered to collect these specimens on 2-3 occasions over a time interval of 0.5-3.2 y. When sampled, six were early prepubertal, nine late prepubertal, eight early pubertal, eight mid-pubertal, and eight late pubertal normal girls, and six were early pubertal and 14 mid-pubertal patients with precocious puberty. The mean level of monthly urinary LH, FSH, and total estrogen excretions increased with pubertal maturation. In prepuberty, the mean LH level was lower than the mean FSH level, and neither showed significant episodic fluctuations. In early puberty, mean FSH levels increased with remarkable fluctuations, and mean LH levels were low with few variations in the course of a month. At the onset of puberty, gonadotropin excretory patterns underwent specific changes, showing at the same time periodically and every other day fluctuating patterns. Urinary total estrogen and pregnanediol excretion fluctuated independently from these periodic variations in urinary gonadotropins. These patterns were observed in six out of 16 patterns in normal pubertal girls and 10 out of 20 patterns in precocious puberty. Once the urine LH level exceeded the urine FSH level, however, these periodic variations disappeared. The cycle of a normal postmenarcheal girl aged 14 y showed a pattern similar to that of a normal adult. In patients with precocious puberty, the hormonal patterns were similar to those of sexual stage-matched normal girls.
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Abbreviations
- FMV:
-
first morning voided
- G:
-
group
- LHRH:
-
LH-releasing hormone
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Acknowledgements
The authors thank A. Takahashi, Kanagawa Children's Medical Center, for the measurement of urinary creatinine and K. Kagiya for assistance. We thank Dr. A. Ogiwara, Yokohama City University School of Medicine, for the helpful advice on statistical analysis.
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Supported by a “Specific Disease” research grant from the Japanese Ministry of Health and Welfare and a comprehensive research grant for the prevention of mental and physical disorders from the Japanese Ministry of Health and Welfare.
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Maesaka, H., Tachibana, K., Adachi, M. et al. Monthly Urinary Gonadotropin and Ovarian Hormone Excretory Patterns in Normal Girls and Female Patients with Idiopathic Precocious Puberty. Pediatr Res 40, 853–860 (1996). https://doi.org/10.1203/00006450-199612000-00013
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DOI: https://doi.org/10.1203/00006450-199612000-00013
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