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Relationship between Growth Hormone and Cytokines in Short Children Undergoing Growth Hormone Stimulation Testing

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DOI: 10.4236/ijcm.2015.612119    2,264 Downloads   2,617 Views   Citations

ABSTRACT

Background: The relationship between growth hormone (GH) and cytokines remains unclear. Several studies have suggested that GH increases tumor necrosis factor (TNF)-α production in both children and adults. However, a number of studies have demonstrated a negative correlation between GH and TNF α. The aim of this study is to explore the relationship between endogenous GH secretion and certain pro and anti-inflammatory cytokines in short children undergoing GH stimulation testing for evaluation for GH deficiency. Methods: Plasma growth hormone, TNF α, CRP, IL-6, IL1-β, IL-4 and IL-10 levels are obtained at baseline and every 30 minutes for 150 minutes following two provocative agents (clonidine, and either arginine or glucagon). Results: Among the 23 children, 7 are found to be GH deficient. No significant differences in baseline TNF α levels are found between GH deficient and GH sufficient children. No correlation is identified between TNF α levels and GH levels during stimulation testing. Furthermore, no relationship is found between GH and pro-inflammatory cytokines or GH and anti-inflammatory cytokines. Conclusion: Our results do not demonstrate an acute relationship between endogenous GH secretion and the cytokines examined.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Tafuri, K. , Dixon, D. , Markarian, K. , Lane, A. and A. Wilson, T. (2015) Relationship between Growth Hormone and Cytokines in Short Children Undergoing Growth Hormone Stimulation Testing. International Journal of Clinical Medicine, 6, 912-918. doi: 10.4236/ijcm.2015.612119.

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