期刊
ANNALS OF NUTRITION AND METABOLISM
卷 74, 期 2, 页码 125-131出版社
KARGER
DOI: 10.1159/000496459
关键词
Spexin; Children; Obesity; Blood pressure; Insulin resistant
资金
- National Natural Science Foundation of China [81300692, 81700793]
- Natural Sciences Foundation of the Jiangsu Higher Education Institutions of China [17KJB320014]
Objectives: Spexin (SPX) is a novel peptide that has recently emerged as an important regulatory adipokine of obesity and related metabolic disease. Little is known about its role in children. The aim of the current study was to determine the potential role of SPX in obese children and explore its relationships with obesity-related markers, insulin sensitivity and pancreatic beta cell function. Method: We studied the levels of serum SPX in 40 obese and 32 normal weight pre-puberty children (mean age was 8.59 +/- 1.82 and 8.15 +/- 2.03 years in obesity and control groups respectively). We investigated the levels of body mass index, blood pressure, lipids, glucose, insulin, Homeostasis model assessment for insulin-resistant (HOMA-IR, HOMA for beta-cell function [HOMA-beta]), insulin-ogenic index and C-peptide index and analyzed their correlations with SPX levels. Results: SPX levels were significantly decreased in obese children compared to controls. Moreover, serum SPX levels were lower in IR obese subjects in contrast with the non-IR obese subjects. Serum SPX concentrations correlated negatively and significantly with tri-glycerides, systolic blood pressure, diastolic blood pressure, fasting insulin level, HOMA-IR, insulinogenic index, and HOMA-beta levels in obese children. Conclusions: In summary, serum SPX levels significantly decreased in obese children and negatively correlated with insulin resistance and pancreatic beta cell function indicators. Therefore, SPX may play a protective role in the process of glucose homeostasis and is closely related to beta cell function in obese children. (c) 2019 S. Karger AG, Basel
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