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Article
The Adipokine C1q Tnf Related Protein 3 (CTRP3) Is Elevated in the Breast Milk of Obese Mothers
PeerJ
  • Megan R. Kwon, East Tennessee State University
  • Eileen M. Cress, East Tennessee State University
  • W. Andrew Clark, East Tennessee State University
  • Arsham Alamian, East Tennessee State Universit
  • Yongke Lu, East Tennessee State University
  • Jonathan M. Peterson, East Tennessee State University
Document Type
Article
Publication Date
3-5-2018
Description

Background C1q TNF related protein 3 (CTRP3) is a relatively novel hormonal factor primarily derived from adipose tissue and has anti-diabetic properties. To determine if CTRP3 could play a role in early childhood development, the purpose of this study was to establish the presence of CTRP3 in breast milk (BM) and to determine whether CTRP3 levels were correlated with pregravid obesity status of the mother. Methods Breast milk was collected from breast-feeding mothers who had a pregravid body mass index (BMI) classification of normal weight (BMI 18–25 kg/m2, n = 23) or obese (BMI > 30 kg/m2, n = 14). Immunoprecipitation followed by immunoblot analysis confirmed the presence of CTRP3 in BM. The concentration of CTRP3 in BM samples was determined by ELISA. Additional bioactive components were also measured by commercially available assays: ghrelin, insulin, leptin, adiponectin, interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and glucose. Bioactive components in normal weight and obese mothers were compared using unpaired t-test (parametric) and Mann–Whitney U-test (non-parametric), as appropriate. Results The primary findings of this study are that the adipokine CTRP3 is present in BM and CTRP3 levels are increased with pregravid obesity. Additionally, this study independently confirmed previous work that BM from obese mothers has a higher concentration of insulin and leptin. Further, no differences were observed in BM between obese and normal weight mothers in ghrelin, adiponectin, IL-6, TNF-α, or glucose levels. Conclusion This study identified a novel factor in BM, CTRP3, and showed that BM CTRP3 levels higher in obese mothers. Because of the purported insulin sensitizing effect of CTRP3, it is possible that the elevated levels of CTRP3 in the BM of obese mothers may offset negative effects of elevated leptin and insulin levels in the BM of obese mothers. Future studies will need to be conducted to determine the relevance of CTRP3 in BM and to examine the presence of other adipose tissue-derived hormonal factors.

Copyright Statement

© 2018 Kwon et al. This document was originally published in the PeerJ.

Creative Commons License
Creative Commons Attribution 4.0
Citation Information
Megan R. Kwon, Eileen M. Cress, W. Andrew Clark, Arsham Alamian, et al.. "The Adipokine C1q Tnf Related Protein 3 (CTRP3) Is Elevated in the Breast Milk of Obese Mothers" PeerJ Vol. 6 (2018) p. e4472 ISSN: 2167-8359
Available at: http://works.bepress.com/arsham-alamian/63/