Central precocious puberty, functional and tumor-related.

Area of Science:

• Pediatric Endocrinology
• Genetics
• Reproductive Medicine

Background:

• Central precocious puberty (CPP) involves early activation of the hypothalamic-pituitary-gonadal axis, occurring before age 8 in girls and 9 in boys.
• While historically considered idiopathic in many cases, particularly in girls, recent genetic discoveries have identified specific gene mutations (KISS1, KISS1R, MKRN3, DLK1) contributing to CPP.
• Risk factors include international adoption and exposure to endocrine disruptors, with central nervous system (CNS) alterations playing a significant role.

Purpose of the Study:

• To provide a comprehensive overview of central precocious puberty (CPP), encompassing its definition, diagnosis, etiology, and long-term implications.
• To highlight the evolving diagnostic landscape, emphasizing the integration of genetic testing alongside traditional methods.
• To discuss current treatment strategies and emerging research in CPP management.

Main Methods:

• Clinical data review focusing on the signs of pubertal onset.
• Hormonal assessments, including the gonadotropin-releasing hormone (GnRH) stimulation test as the gold standard.
• Imaging studies such as bone age assessment and brain magnetic resonance imaging (MRI).
• Genetic testing for mutations in identified CPP-associated genes, especially in familial cases.

Main Results:

• The diagnosis of CPP relies on a combination of clinical evaluation, hormonal testing, and imaging.
• Genetic testing has reduced the proportion of idiopathic cases, revealing specific genetic underpinnings.
• Early puberty is associated with potential long-term health issues, including behavioral problems and metabolic comorbidities.

Conclusions:

• Central precocious puberty (CPP) diagnosis is increasingly informed by genetic insights, complementing established clinical and hormonal evaluations.
• Early identification and intervention are crucial for managing CPP and mitigating potential long-term health consequences.
• Ongoing research into new treatment formulations aims to optimize outcomes for individuals with CPP.