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Urinary 6-sulfatoxymelatonin Level in Girls and Its Relationship with Obesity

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Specialty Pediatrics
Date 2012 Oct 11
PMID 23049592
Citations 4
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Abstract

Purpose: Short sleep duration is associated with obesity. Urinary 6-sulfatoxymelatonin (6-OHMS), the principal metabolite of melatonin, is closely related with sleep. We evaluated the difference in urinary 6-OHMS levels between obese girls and normal weight girls, and the relationship of urinary 6-OHMS with other hormones regulating body weight and metabolism.

Methods: A total of 79 girls (6.3 to 12.4 years) were included in this study, of whom 34 were obese; 15, overweight; and 30, normal-weight. We examined their pubertal status and bone age. Fasting serum levels of total ghrelin, leptin, insulin, and first morning urinary 6-OHMS were measured. Homeostatic model assessment-insulin resistance (HOMA-IR) was calculated from the fasting insulin and glucose levels.

Results: There was no significant difference in the creatinine adjusted 6-OHMS levels between the obese girls and the control group. Urinary 6-OHMS did not show any correlations with body mass index (BMI), BMI percentile, total ghrelin, leptin, and HOMA-IR. Negative correlations were found between urinary 6-OHMS levels and chronological and bone ages.

Conclusion: Our results suggest that melatonin production is not reduced consistently in obese girls.

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Maternal Serum Melatonin Increases During Pregnancy and Falls Immediately After Delivery Implicating the Placenta as a Major Source of Melatonin.

Ejaz H, Figaro J, Woolner A, Thottakam B, Galley H Front Endocrinol (Lausanne). 2021; 11:623038.

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The effects of sleep and light at night on melatonin in adolescents.

Hersh C, Sisti J, Richiutti V, Schernhammer E Hormones (Athens). 2015; 14(3):399-409.

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Evaluation of serum xenin and ghrelin levels and their relationship with nonalcoholic fatty liver disease and insulin resistance in obese adolescents.

Arslan N, Sayin O, Tokgoz Y J Endocrinol Invest. 2014; 37(11):1091-7.

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