Pediatric Obesity Clinical Trial
Official title:
The Effect of Decaffeinated Green Tea Polyphenol Intake on the Risk of Precocious Puberty Among Obese Girls
In this study, 6-10 years old obese girls will be recruited to test the preventive effect of decaffeinated green tea polyphenols on the risk of precocious puberty by the random, placebo-control and single blind design. The intervention group will be given decaffeinated green tea polyphenols capsule (400mg/d) and the control group will be given placebo. The oral treatment will be lasted for 12 weeks.Then all the subjects will be followed up every 3 months until three months after menstruation. At the baseline and after the 12 week intervention, the clinical manifestations of secondary sexual characters, the serum levels of sex hormones will be determined as the outcome variables. After controlling confounding factors, the preventive effect of the green tea polyphenols on precocious puberty or early puberty among obese girls will be analyzed.
Simple obese girls are prone to premature or early puberty. The topic proposed based on previous studies, recruiting of 80 simple overweight or obesity girls, aged 6 to 10 years old. After the informed consent, they will be randomly divided into intervention group and control group, intervention group will be given tea polyphenol capsule (400 mg, epigallocatechin gallate (EGCG) accounted for 50%), the control group given placebo capsule. Participants need take it once a day after breakfast. All of them will receive similar health advice on proper diet and exercise. The intervention will last 12 weeks, followed by telephone every 3 months until 3 months after menarche. The researchers will measure children obesity index (using artificial detection), youth development index (secondary sex characteristic clinical manifestations, serum sex hormone, B ultrasonic examination uterus ovarian and breast volume, etc.) in three stages: at the baseline, after 12 weeks intervention and the end of three months after menstruation. The liver and kidney function, blood and urine routine and serum trace elements will be detected before and after the three-month intervention. Through the above detection of the indicators related to obesity and sexual precocious puberty, it is explored whether the decaffeinated tea polyphenol has preventive effects on precocious puberty. ;
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