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Acta Diabetologica

, Volume 30, Issue 1, pp 21–24 | Cite as

ACTH4–9 analogue ORG 2766 can improve existing neuropathy in streptozocin-induced diabetic rats

  • B. Bravenboer
  • A. C. Kappelle
  • T. van Buren
  • D. W. Erkelens
  • W. H. Gispen
Originals

Abstract

The effect of treatment of an existing neuropathy in streptozocin-induced diabetic rats with the ACTH4–9 analogue ORG 2766 was examined. Four groups of rats were studied: group 1 consisted of age-matched, non-diabetic controls and groups 2, 3 and 4 of diabetic rats. Sensory and motor nerve conduction velocity (SNCV and MNCV) were measured at weeks 0, 4, 6, 8 and 10. Four weeks after the administration of streptozocin (STZ) all diabetic rats showed a significant slowing of SNCV and MNCV. Treatment was then started: group 2 was treated with placebo, group 3 with a low dos (1 μg) of ACTH4–9 subcutaneously every 48h, and group 4 with a high dos (10 μg) of ACTH4–9 subcutaneously every 48 h. The animals treated with the high peptide dosage showed a significant improvement in both SNCV and MNCV from week 6 onwards, whereas this beneficial effect was not demonstrated for the rats treated with the low dosage. This study demonstrates that the ACTH4–9 analogue ORG 2766 can ameliorate existing diabetic neuropathy in STZ-induced diabetic rats.

Key words

ACTH4–9 Experimental diabetic neuropathy Neuropeptide 

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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • B. Bravenboer
    • 1
  • A. C. Kappelle
    • 2
  • T. van Buren
    • 2
  • D. W. Erkelens
    • 1
  • W. H. Gispen
    • 2
  1. 1.Department of Internal Medicine, Rudolf Magnus InstituteUniversity of UtrechtUtrechtThe Netherlands
  2. 2.Department of Medical Pharmacology, Rudolf Magnus InstituteUniversity of UtrechtUtrechtThe Netherlands

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