Efeito da diacereína sobre a febre induzida por suspensão de Saccharomyces cerevisiae e por prostaglandina e2 em ratos jovens

Abstract

Fever is a systemic response that results of a cascade of events that usually begins with pathogenic infection. Its development represents an important aspect of host defense that is mediated by the central nervous system. However, antipyretic medication are routinely prescribed because fever is associated with discomfort and anxiety, apart from to represent a iminent risk of febrile seizures. The present study aimed to investigate the effect of diacerein on body temperature and Baker s Yeast- and prostaglandin E2 -induced fever in young male Wistar rats (28 30 days of age). The subcutaneous administration of diacerein (5mg/kg) did not alter basal rectal temperature. This dose attenuated the febrile response induced by Baker Yeast, however did not reversed prostaglandin E2 -induced fever. Moreover, diacerein (5mg/kg, s.c.) delayed the onset of fever induced by Baker Yeast, but it did not prevent their installation. Interestingly, diacerein inhibited the leukocyte migration enhancement that occurred in the control group after the intraperitoneal administration of Baker s Yeast. These data suggest that the diacerein exert a weak antipyretic effect, which may occur through inhibition of synthesis of proinflammatory cytokines. However, further studies are needed to elucidate the precise mechanism of this antipyretic action of diacerein.