Effect of GH Deficiency Caused by Nonfunctioning Pituitary Masses on Serum C-reactive Protein Levels

Author:

Seki Yasufumi1ORCID,Morimoto Satoshi1ORCID,Bokuda Kanako1ORCID,Watanabe Daisuke1ORCID,Yamashita Kaoru1ORCID,Takano Noriyoshi1,Amano Kosaku2,Kawamata Takakazu2ORCID,Ichihara Atsuhiro1ORCID

Affiliation:

1. Department of Internal Medicine, Tokyo Women's Medical University , Tokyo, 162-8666 , Japan

2. Department of Neurosurgery, Tokyo Women's Medical University , Tokyo, 162-8666 , Japan

Abstract

Abstract Context GH supplementation for GH deficiency (GHD) has been reported to decrease high-sensitivity C-reactive protein (hs-CRP), an inflammatory marker; however, the association between GHD and hs-CRP remains unclear. Objective We aimed to clarify the impact of impaired GH secretion due to pituitary masses on hs-CRP levels. Methods We retrospectively examined the association between GH secretion, assessed using GH-releasing peptide-2, and serum hs-CRP levels before and a year after the pituitary surgery in patients with nonfunctioning pituitary neuroendocrine tumor or Rathke cleft cyst. Results Among 171 patients, 55 (32%) presented with severe GHD (peak GH response to GH-releasing peptide-2 < 9 ng/mL). Serum hs-CRP levels were significantly higher in patients with severe GHD than in those without (P < .001) and significantly correlated with the peak GH (r = −0.50, P < .001). Multiple regression analyses showed that the peak GH significantly and negatively predicted hs-CRP levels (β = −0.345; 95% CI, −0.533 to −0.158) and the lowest quartile of the peak GH (<5.04 ng/mL) were significantly associated with increase in hs-CRP levels (exp [β] = 1.840; 95% CI, 1.209 to 2.801), after controlling for other anterior hormones and metabolic parameters. Postoperative change in the peak GH (N = 60) significantly predicted change in hs-CRP levels (β = −0.391; 95% CI, −0.675 to −0.108), independent of alterations in other anterior hormones and metabolic parameters. Conclusion The inverse association between GH secretion and hs-CRP levels highlights the protective role of GH in the increase in hs-CRP.

Funder

Japan Society for the Promotion of Science

KAKENHI

Publisher

The Endocrine Society

Subject

Endocrinology, Diabetes and Metabolism

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