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Different Effects of Intraperitoneal and Subcutaneous Insulin Administration on the GH-IGF-1 Axis in Type 1 Diabetes

van Dijk, P. R., Logtenberg, S. J. J., Chisalita, S. I., Hedman, C. A., Groenier, K. H., Gans, R. O. B., Kleefstra, N., Arnqvist, H. J. & Bilo, H. J. G., Jun-2016, In : Journal of Clinical Endocrinology and Metabolism. 101, 6, p. 2493-2501 9 p.

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  • Different Effects of Intraperitoneal and Subcutaneous Insulin Administration on the GH

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DOI

Context: In type 1 diabetes mellitus, low levels of insulin-like growth factor -1 (IGF-1) and IGF binding protein-3 (IGFBP-3) and high levels of GH and IGFBP-1 are present, probably due to portal vein insulinopenia.

Objective: To test the hypothesis that continuous ip insulin infusion (CIPII) has a more pronounced effect than sc insulin therapy on regulation of the GH-IGF-1 axis.

Design: This was a prospective, observational case-control study. Measurements were performed twice at a 26-week interval.

Setting: Two secondary care hospitals in the Netherlands participated in the study.

Patients: There were a total of 184 patients, age-and gender-matched, of which 39 used CIPII and 145 sc insulin therapy for the past 4 years.

Outcomes: Primary endpoint included differences in IGF-1. Secondary outcomes were differences in GH, IGFBP-1, and IGFBP-3.

Results: IGF-1 was higher with CIPII as compared to SC insulin therapy: 124 mu g/liter (95% confidence interval [CI], 111-138) vs 108 mu g/liter (95% CI 102-115) (P = .035). Additionally, IGFBP-3 concentrations were higher and IGFBP-1 and GH concentrations were lower with CIPII as compared to SC insulin therapy: 3.78 mg/liter (95% CI, 3.49 - 4.10) vs 3.31 mg/liter (95% CI, 3.173.47) for IGFBP-3, 50.9 mu g/liter (95% CI, 37.9 - 68.2) vs 102.6 mu g/liter (95% CI, 87.8 - 119.8) for IGFBP-1 and 0.68 mu g/liter (95% CI, 0.44 - 1.06) vs 1.21 mu g/liter (95% CI, 0.95-1.54) for GH, respectively. In multivariate analysis, IGF-1 had no significant association with HbA1c.

Conclusions: The GH-IGF-1 axis may be affected by the route of insulin administration with CIPII counteracting dysregulation of the GH-IGF1 axis present during sc insulin therapy.

Original languageEnglish
Pages (from-to)2493-2501
Number of pages9
JournalJournal of Clinical Endocrinology and Metabolism
Volume101
Issue number6
Publication statusPublished - Jun-2016

    Keywords

  • BINDING PROTEIN-1 IGFBP-1, GROWTH-FACTOR SYSTEM, IGF-I CONCENTRATIONS, GLYCEMIC CONTROL, IMPLANTABLE PUMPS, MELLITUS PATIENTS, INFUSION, HORMONE, THERAPY, HYPOGLYCEMIA

ID: 32145526