The effect of metyrapone on granuloma induced by carrageenan-impregnated sponges in normal and essential fatty acid deficient rats

Author:

Parnham M J1,Adolfs M J P1,Bonta I L1

Affiliation:

1. Department of Pharmacology, Medical Faculty, Erasmus University Rotterdam, P.O. Box 1738, Rotterdam, The Netherlands

Abstract

Abstract Treatment of normal rats with metyrapone (20 mg kg−1 day−1, s.c.) for 5 days, starting on the day before implantation, inhibited the production of granuloma, induced by carrageenan-impregnated sponges, determined 8 days after implantation. Exudate volume and prostaglandin (PG) production were unaffected. In essential fatty acid deficient (EFAD) rats, metyrapone did not alter the already existing adrenal hyperplasia due to EFAD and did not affect either granuloma formation or exudate production. The results are discussed in relation to earlier work using adrenalectomy and with regard to the effect of EFA deficiency on adrenal corticosteroid production. It is suggested that metyrapone is a more useful tool than adrenalectomy in studying the role of endogenous corticosteroids.

Publisher

Oxford University Press (OUP)

Subject

Pharmaceutical Science,Pharmacology

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