SPIRULINA PLATENSIS AT TENUATES STRESS-INDUCED PHYSICAL AND BIOCHEMICAL CHANGES IN RATS

The aim of present study on Spirulina platensis (Spirulina) was to evaluate the anti-stress activity. The anti-stress activity was assessed by tail suspension method andcold immobilization induced change of biochemical parameters. Acute toxicity (LD50) of Spirulina platensis values was also studied. Duration of immobilization time and cold immobilization induced alteration of biochemical parameters (liver functioning profiles like-AST, ALT, ALP and liver tissue anti-oxidant profiles like-MDA, SOD, GST) were used as a stress indicator. Spirulina platensis administered orally at two different doses of 200 and 400 mg/kg respectively. Diazepam, a well-known anti-stress drug (2 mg/kg i.p.) was taken as standard drug. The dose of 200 and 400 mg/kg of Spirulina Platensis significantly decreased the duration of immobilization time and also provide protection against stress induced alteration of biochemical parameters. It is concluded that the 200 and 400 mg/kg dose of Spirulina platensis have anti-stress activity.