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[Activity of the hypophyso-gonadal axis in premature boys]
Archives Francaises De Pediatrie
|August 1, 1983
Insights
Premature boys show increased luteinizing hormone (LH) and testosterone by 2 months postnatal, similar to full-term infants. This suggests hypophyso-gonadal function activation depends on age after birth, not prematurity itself.
Area of Science:
- Endocrinology
- Neonatal Physiology
- Pediatric Development
Context:
- Investigating hormonal development in premature infants.
- Understanding the postnatal maturation of the hypothalamic-pituitary-gonadal axis.
- Comparing endocrine profiles of premature versus full-term neonates.
Purpose:
- To examine the postnatal changes in testosterone, luteinizing hormone (LH), and follicle-stimulating hormone (FSH) in premature boys.
- To determine if the timing of hypophyso-gonadal function activation is influenced by gestational age or postnatal age.
- To establish correlations between testosterone and LH levels during early postnatal development.
Summary:
- Thirty premature boys were monitored for plasma levels of testosterone, LH, and FSH postnatally.
- A significant increase in LH and testosterone was observed at 2 months of age, mirroring patterns in full-term infants.
- These hormonal increases were positively correlated, indicating synchronized development.
- The study found that the activation of the hypophyso-gonadal system in premature infants is primarily dependent on postnatal age rather than gestational age.
Impact:
- Provides crucial insights into the endocrine maturation of premature infants.
- Informs clinical understanding of hormonal development in neonatology.
- Highlights the importance of postnatal age in assessing gonadal function in preterm populations.
- Contributes to the knowledge base on infant hormonal development and potential long-term health implications.
Abstract:
Postnatal evolution of testosterone, LH and FSH plasma levels was studied in 30 premature boys. Increase in LH and testosterone levels at the age of 2 months was found in these children as in full-term children; both parameters were positively correlated. Activation of hypophysogonadal function in premature seems to depend on postnatal age and not on gestational age.