Pancreatic polypeptide administration enhances insulin sensitivity and reduces the insnlin requirement of patients on insulin pump therapy

Atoosa Rabiee, Panagis Galiatsatos, Rocio Salas-Carrillo, Michael J. Thompson, Dana K. Andersen, Dariush Elahi

Research output: Contribution to journalArticle

21 Scopus citations


Introduction: The effects of pancreatic polypeptide (PP) infusion were examined in patients on insulin pump therapy to determine whether PP administration can reduce insulin requirements in patients with type 1 diabetes mellitus (T1DM) or type 3c diabetes mellitus (T3cDM; pancreatogenic). Methods: Ten subjects with long-standing T1DM (n = 7) or T3cDM (n = 3) on insulin pump treatment received a 72 h subcutaneous infusion of 2 pmol/kg/min bovine PP or saline by portable infusion pump in a single-blinded, randomized, crossover design. Results: Pancreatic polypeptide infusion raised plasma PP levels to 450-700 pmol/liter. Daily insulin infusion requirements (I) fell from 48 ± 6.9 to 40 ± 7.5 U on day 2 (p < .05) and from 46 ± 7.7 to 37 ± 6.6 U on day 3 (p < .05) of PP infusion compared with saline. Corrected for average blood glucose concentration (G), I/G fell in 10/10 subjects during the second 24 h period and in 7/10 subjects during the third 24 h period; sensitivity to insulin, calculated as 1 /(I/G), increased 45% ± 12% on day 2 (p < .01) and 34% ± 1-4% on day 3 (p < .05) of PP infusion. Pancreatic polypeptide responses to a test meal were compared with the change in insulin infusion requirements in 5 subjects; the reduction in insulin requirements seen during PP infusion correlated with the degree of baseline PP deficiency (p < .002). Conclusions: A concurrent subcutaneous infusion of PP enhances insulin sensitivity and reduces insulin requirements in patients with long-standing T1DM and T3cDM on insulin pump therapy. The benefit of PP infusion correlated with the degree of PP deficiency.

Original languageEnglish (US)
Pages (from-to)1521-1528
Number of pages8
JournalJournal of Diabetes Science and Technology
Issue number6
StatePublished - Nov 2011



  • Hepatic insulin sensitivity
  • Insulin, insulin pump treatment
  • Pancreatic polypeptide
  • Type 1 diabetes
  • Type 3c diabetes

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Bioengineering
  • Biomedical Engineering

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