Resumo

PEREZ GUERRA, Yohani et al. Study of D-004 on the endogenous antioxidant defence in rats presenting with prostate hyperplasia induced by testosterone injection. Rev Cubana Farm [online]. 2010, vol.44, n.2, pp. 221-230. ISSN 1561-2988.

Benign prostatic hyperplasia, a common disease in men aged over 50 is characterized by uncontrolled growth of prostatic gland and the presence of low urinary tract symptoms. The oxidative stress has been recently associated with the disease cause. The D-004, a lipid extract from Roystonea regia, reduces the prostatic hyperplasia induced by testosterone in rodents and to produce in vitro and in vivo antioxidant effects nut its effects on endogenous antioxidant4e system enzymes haven't been studied. Present paper researched the effects of D-004 oral treatment over 14 days on dismutase and catalase superoxide enzymes in rats with prostatic hyperplasia induced by testosterone. Animals were randomized distributed into 4 groups: a negative control ant three-testosterone injected: one treated with the vehicle (positive control) and two with D-004 (400 and 800 mg/kg, respectively). The plasma total antioxidant ability was determined as well as the activity of catalase and dismutase superoxide enzymes in lysed erythrocyte and plasma, respectively. D-004 (400 and 800 mg/kg) oral treatment markedly and significantly prevented the prostate enlargement induced with testosterone in rats and increased very much the plasma antioxidant activity and of catalase, without modify the superoxide dismutase. These results suggest that D-004 antioxidant activity is partially related to stimulation of some enzymes of the endogenous antioxidant system.

Palavras-chave : D-004; prostatic hyperplasia; endogenous antioxidants; oxidative stress; rats.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )