Skip Navigation LinksHome > July 2014 - Volume 59 - Issue 1 > Role of Vitamin D in Children With Hepatosteatosis
Journal of Pediatric Gastroenterology & Nutrition:
doi: 10.1097/MPG.0000000000000371
Original Articles: Hepatology and Nutrition

Role of Vitamin D in Children With Hepatosteatosis

Yildiz, Ismail*; Erol, Oguz B.; Toprak, Sadik; Cantez, Mustafa S.§; Omer, Beyhan||; Kilic, Ayse*; Oguz, Fatma; Uysalol, Metin#; Yekeler, Ensar; Unuvar, Emin*

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Abstract

Background: The increasing incidence of obesity in children is a significant risk factor for nonalcoholic fatty liver disease and obesity-associated morbidity. Vitamin D has a major role in bone mineral metabolism and has antimicrobial, antioxidant properties. In this study we aimed to investigate the role of vitamin D in children with obesity with hepatosteatosis.

Methods: A total of 101 children with obesity were included in this study. Hepatosteatosis was diagnosed and graded using ultrasonography. Serum levels of 25-hydroxyvitamin D (25-(OH) vitamin D), calcium, phosphate, alkaline phosphatase, and parathormone were tested. Two-sided t test and Pearson χ2 tests were used for the relation between vitamin D and hepatosteatosis.

Results: In our study group, 45.5% were girls (n = 46) and the mean age was 11.5 ± 2.8 years (range 3–17 years). Hepatosteatosis was identified in 58 children (57.4%). The diagnosis of grade 1 and grade 2 hepatosteatosis was made in 41 (40.6%) and 17 (16.8%) children, respectively. Median serum 25-(OH) vitamin D levels in children without hepatosteatosis was 16.4 ng/mL (interquartile range 12.4–24.8 ng/mL), whereas children with grade 1 and grade 2 hepatosteatosis had 25-(OH) vitamin D levels of 14.2 ng/mL (interquartile range 9.5–21.2 ng/mL) and 11.5 ng/mL (interquartile range 7.5–16.7 ng/mL), respectively (P = 0.005). There was a positive correlation between insulin resistance and the grade of hepatosteatosis (P = 0.03).

Conclusions: Serum vitamin D levels in children with obesity with hepatosteatosis are significantly lower than vitamin D levels in children with obesity without hepatosteatosis. In this observational study we only refer to the association of vitamin D deficiency/insufficiency with hepatosteatosis.

© 2014 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology,

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