Journal
JOURNAL OF PEDIATRIC ENDOCRINOLOGY & METABOLISM
Volume 35, Issue 6, Pages 761-766Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/jpem-2022-0063
Keywords
childhood obesity; circulating miRNA; leptin resistance; SOCS3
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Funding
- Yeditepe University
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This study investigated the effects of circulating miRNAs on leptin resistance in obese children by targeting the SOCS3 pathway. The results showed that miR-218-5p might be involved in leptin resistance in obese children.
Objectives Leptin resistance is one of the important causes of obesity in children. Besides known causes of leptin resistance like mutations in leptin and leptin receptor genes, overexpression of SOCS3 in arcuate nucleus is a potential cause of leptin resistance. We aimed to determine the effects of circulating miRNAs on leptin resistance in obese children by targeting SOCS3 pathway. Methods miRNAs potentially targeting SOCS3 were determined by using online target prediction databases. Polymorphisms in miRNA target sequences were determined by using online genome browsers. miRNA expression levels of obese (n=35) and non-obese (n=30) children were determined by qPCR method, genotyping were performed by real-time PCR method and serum leptin, leptin receptor and SOCS3 levels were measured by ELISA method. Results miRNA profiling have shown that serum miR-218-5p levels are significantly (p<0.05) increased in accordance with serum leptin levels in obese children. Conclusions In this study we used target prediction methods for evaluating potential miRNAs which may involve in development of leptin resistance. We have shown that miR-218-5p might be taking part in leptin resistance in obese children.
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