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Updated: Aug 5, 2026

Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats
Published on: October 13, 2018
[Complete isosexual precocious puberty (true, LHRH-dependent)-- personal experience]
L Lisá1, H Krásnicanová, J Zounarová
1I. dĕtská klinika, 2. LF UK a FN v Motole, Praha.
This study on true sexual precocity in girls found that gonadotropin-releasing hormone analog treatment led to regression of pubertal signs. Early diagnosis and intervention are key for managing precocious puberty.
Area of Science:
- Pediatric Endocrinology
- Reproductive Medicine
- Child Development
Background:
- True sexual precocity involves early onset of puberty.
- Distinguishing true precocity from incomplete puberty is crucial for appropriate management.
- Accelerated height and bone age are common indicators.
Purpose of the Study:
- To evaluate the diagnosis and treatment of true sexual precocity in young girls.
- To differentiate true precocity from incomplete puberty using hormonal stimulation tests.
- To assess the efficacy of gonadotropin-releasing hormone analog treatment.
Main Methods:
- Studied 10 girls aged 11 months to 7.5 years with true sexual precocity.
- Assessed height acceleration and bone age (BA) using various methods.
- Used Relefact LHRH stimulation tests to differentiate puberty types based on luteinizing hormone (LH) and follicle-stimulating hormone (FSH) levels.
- Administered Decapeptyl-Depot (a GnRH analog) for treatment.
Main Results:
- Marked acceleration of bone age was observed.
- Elevated LH serum levels (>12 IU/l) indicated true puberty, while elevated FSH suggested incomplete puberty.
- Patients exhibited estrogenization, breast development, and pubic hair; three experienced menarche.
- Treatment with Decapeptyl-Depot resulted in regression of pubertal signs within eight months.
Conclusions:
- Gonadotropin-releasing hormone analog therapy is effective in regressing pubertal signs in true sexual precocity.
- Hormonal stimulation tests are valuable for accurate diagnosis.
- Early intervention can manage the progression of precocious puberty.
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