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. 1993 Jan;113(1):98-102.

The effect of prednisone on pancreatic islet autografts in dogs

Y Zeng  1 , C Ricordi, J Lendoire, P B Carroll, R Alejandro, D R Bereiter, A Tzakis, T E Starzl
Affiliations

The effect of prednisone on pancreatic islet autografts in dogs

Y Zeng et al. Surgery. 1993 Jan.

Abstract

Prednisone was shown to induce hyperglycemia in dogs submitted to total pancreatectomy and pancreatic islet autotransplantation. The hyperglycemia caused by a 10-day course of prednisone, 1 mg/kg/day, starting on the day of operation was reversible within 1 week after steroid discontinuance. Three weeks after prednisone was stopped, there was no detectable adverse effect on glucose homeostasis as judged by fasting blood sugar levels and intravenous glucose tolerance test results. Four months after transplantation, glucose disappearance was delayed in animals previously treated with the prednisone compared with those previously treated with prednisone plus insulin or control animals. This was accompanied by lower insulin values on intravenous glucose tolerance testing and suggests a long-term subtle effect on islet function. The mechanism of the steroid effect is not known. However, this model could be used to test the diabetogenicity of other immunosuppressive agents including cyclosporine, FK 506, and azathioprine.

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Figures

Fig. 1
Fig. 1
Weekly fasting plasma glucose levels of (non-prednisone-treated group) control group (n = 6), prednisone-treated group (n = 4), and prednisone plus insulin group (n = 4) up to 3 weeks after islet autotransplantation.
Fig. 2
Fig. 2
IVGTT 4 months after islet autotransplantation.
Fig. 3
Fig. 3
Insulin response to intravenously injected glucose 4 months after islet autotransplantation.
See this image and copyright information in PMC

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