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1.
Indian J Physiol Pharmacol ; 2000 Jan; 44(1): 101-4
Article in English | IMSEAR | ID: sea-107818

ABSTRACT

The anti-inflammatory activity of sodium pyruvate was evaluated in acute and chronic models of inflammation in rats. Oral administration of sodium pyruvate at three different dose levels of 125, 250 and 500 mg/kg body weight significantly inhibited the carrageenan induced acute paw edema in a dose dependent manner. The effect of 500 mg/kg sodium pyruvate was comparable to that of 12.5 mg/kg of standard diclofence. In Freund's adjuvant arthritis model, oral administration of sodium pyruvate at the submaximal dose of 250 mg/kg once daily upto one week before Freund's adjuvant injection and immediately by the same route on the 7th day of adjuvant injection significantly reduced the edema at 18 hours after the challenge. The treatment was continued for 14 days thereafter in two divided doses of 125 mg/kg in the morning and 125 mg/kg in the evening. Sodium pyruvate showed significant anti-inflammatory activity at the 14th day (chronic phase) also. To conclude, sodium pyruvate exhibited significant anti-inflammatory activity in both the models of inflammation which could be attributed to its antioxidant properties.


Subject(s)
Animals , Anti-Inflammatory Agents, Non-Steroidal/pharmacology , Antioxidants/pharmacology , Carrageenan , Edema/chemically induced , Female , Foot/pathology , Free Radical Scavengers/pharmacology , Freund's Adjuvant , Male , Pyruvic Acid/pharmacology , Rats
2.
Indian J Physiol Pharmacol ; 1998 Apr; 42(2): 315-8
Article in English | IMSEAR | ID: sea-108547

ABSTRACT

Sodium pyruvate, a free radical scavenger was evaluated for anti-inflammatory activity using UV radiation induced dermal erythema on guinea pig and compared with that of standard naproxen. Oral as well as topical pyruvate exhibited significant activity against UV induced dermal erythema model and the activity was comparable to that of naproxen. In the other pharmacodynamic studies, such as the studies on rat blood pressure, isolated guinea pig ileum and rat uterus, it showed no effect on any of these. In conclusion, sodium pyruvate showed a significant protection in the UV induced dermal erythema in guinea pigs. It also showed good absorption in UV-B range and this property can be utilised to develop the sodium pyruvate as a sunscreening agent.


Subject(s)
Animals , Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Erythema/etiology , Free Radical Scavengers/therapeutic use , Guinea Pigs , Naproxen/therapeutic use , Pyruvic Acid/therapeutic use , Sunscreening Agents/therapeutic use , Ultraviolet Rays/adverse effects
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