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Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats

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[Diagnosis of delayed puberty].

K Busiah¹, V Belien, N Dallot

¹Service d'endocrinologie pédiatrique, centre de référence maladies endocriniennes rares de la croissance, université Paris-VII, Assistance publique-Hôpitaux de Paris, hôpital Robert-Debré, 48, boulevard Sérurier, 75019 Paris, France.

Archives De Pediatrie : Organe Officiel De La Societe Francaise De Pediatrie

|July 31, 2007

Summary

Delayed puberty (DP) affects approximately 3% of individuals, often due to constitutional delay. Understanding its genetic causes and neuroendocrine mechanisms is crucial for effective hormonal replacement therapy.

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Area of Science:

Pediatric Endocrinology
Reproductive Medicine
Genetics

Context:

Delayed puberty (DP) is a clinical condition characterized by the absence of pubertal development by age 13 in girls and 14 in boys.
It affects approximately 3% of the population, with most cases representing constitutional delay.
Other significant causes include hypogonadotropic hypogonadism (e.g., Kallmann syndrome) and hypergonadotropic hypogonadism (e.g., Turner syndrome).

Purpose:

To review the definition, prevalence, and etiologies of delayed puberty.
To highlight the importance of genetic discoveries in diagnosing hypogonadotropic hypogonadism.
To emphasize the need for further research into the neuroendocrine mechanisms of puberty onset.

Summary:

Delayed puberty is defined by specific age cutoffs for breast and testicular development.
Etiologies range from constitutional delay to genetic disorders like Kallmann and Turner syndromes.
Treatment involves hormonal replacement and addressing the underlying cause.

Impact:

Recent genetic advancements have improved etiological diagnosis for certain forms of hypogonadotropic hypogonadism.
Further collaborative research is needed to fully elucidate hypothalamic-pituitary-gonadal axis abnormalities.
Enhanced understanding will refine diagnostic approaches and therapeutic strategies for delayed puberty.