Central precocious puberty (CPP) is characterized by the early activation of the hypothalamic-pituitary-gonadal axis in girls and may be difficult to distinguish from benign variants such as premature thelarche. Spexin and phoenixin-20 are novel neuropeptides that have been suggested to play roles in reproductive axis regulation. The aim of this study was to compare serum spexin and phoenixin-20 levels among girls with central precocious puberty, girls with premature thelarche, and healthy age-matched controls. The study evaluated whether these biomarkers could help differentiate CPP from other conditions presenting with early breast development. Clinical, anthropometric, and biochemical parameters were analyzed in all participants. Blood samples were collected and serum spexin and phoenixin-20 levels were measured using commercially available assay kits.
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Serum Spexin and Phoenixin-20 levels
Timeframe: At initial clinical evaluation