Circulating CTRP7 Is a Potential Predictor for Metabolic Syndrome

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Hu, Wenjing
Zhan, Bin
Li, Qinge
Yang, Gangyi
Yang, Mengliu
Tan, Minghong
Geng, Shan
Liu, Hua
Chen, Chen
Liu, Dongfang
Li, Ling
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Background: Previous animal studies have revealed that CTRP7 is related to energy metabolism. However, little is known regarding the relationship between CTRP7 and metabolic diseases in humans. Hence, this study was designed to explore the association between CTRP7 and MetS through a cross-sectional study and multiple intervention studies. Methods: A total of 624 individuals were enrolled in this study. The levels of CTRP7 and APN were determined by ELISA kit. HEC, OGTT and lipid infusion were performed in heathy individuals to investigate the association of CTRP7 and glucose, insulin and FFA. Bioinformatics analysis was then undertaken to identify genes and signaling pathways associated with CTRP7. The relationship between CTRP7 with MetS components was also evaluated. Results: In MetS patients, serum CTRP7 concentrations were significantly higher than in healthy controls, and was positively correlated with WC, BP, FBG, 2h-BG and TG, but negatively correlated with HDL-C and APN. Multivariate logistic regression analysis uncovered that CTRP7 was strongly correlated with the occurrence of MetS. In addition, circulating levels of CTRP7 in patients with two or more MetS components were higher than those with one MetS component. In the intervention studies, OGTTs resulted in a significant reduction in serum CTRP7 concentration. However, the increase in insulin levels caused by EHC and the increase of FFA caused by lipid-infusion led to the significant increase of serum CTRP7 concentration. Meanwhile, bioinformatics analysis revealed that CTRP7 was strongly associated with metabolism-related genes and signal pathways, which further illustrate the association of CTRP7 with whole-body metabolism. Conclusions: Serum CTRP7 is increased in MetS patients, which may be a biomarker related to metabolic diseases. Clinical Trial Registration Number: ChiCTR2000032878.

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Frontiers in Endocrinology

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© 2021 Hu, Zhan, Li, Yang, Yang, Tan, Geng, Liu, Chen, Liu and Li. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Hu, W; Zhan, B; Li, Q; Yang, G; Yang, M; Tan, M; Geng, S; Liu, H; Chen, C; Liu, D; Li, L, Circulating CTRP7 Is a Potential Predictor for Metabolic Syndrome, Frontiers in Endocrinology, 2021, 12, pp. 774309