A case of peripheral precocious puberty may be caused by a diet containing phytosterols in a 20-month-old boy,Hormone Research in Paediatrics

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A case of peripheral precocious puberty may be caused by a diet containing phytosterols in a 20-month-old boy
Hormone Research in Paediatrics ( IF 3.2 ) Pub Date : 2022-08-30 , DOI: 10.1159/000526202
Peng Xue _{1,

2} , Yirou Wang ₃ , Yao Chen ₃ , Xiaoyu Wu ₄ , Yijun Tang ₃ , Yu Ding ₃ , Xiumin Wang ₃ , Shijian Liu _{1,

2}

Affiliation

Introduction: Precocious puberty in boys generally remind an etiology. In addition to the causes of endogenous hormone changes, endocrine-disrupting chemicals of exogenous substances may interfere with children's pubertal development. Case presentation: A 20-month-old boy presented with peripheral precocious puberty may be due to a phytosterol-containing diet. The patient came to see a doctor because of acne, hairiness, increased penis size and coarse voice. Genital examination revealed Tanner stage of 2 for pubic hair and stretched penile length 5 cm, which was disagreed with the pre¬pubertal testicular volume (2 mL bilaterally). At the same time, he was found to have pigmentation on both nipples and areola. The concentrations of estradiol and testosterone increased significantly. Since the age of six months, the patient had taken food added with a large amount of chicken essence seasoning (a flavoring in Chinese cooking), with an average of 15 grams of this seasoning a day. And a kind of phytosterol (C29H48O) was detected in chicken essence seasoning by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS). After avoidance of the chicken essence seasoning, the patient's sex hormone levels decreased, all clinical symptoms returned to normal and no further development of secondary sexual characteristics was detected. Conclusion: This phytosterol-containing diet may be responsible for the sexual development of this patient. However, the mechanism of how phytosterols affect the process of development in children needs to be further explored.

更新日期：2022-08-30

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