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  • Title: Effect of NR-ANX-C (a polyherbal formulation) on haloperidol induced catalepsy in albino mice.
    Author: Nair V, Arjuman A, Dorababu P, Gopalakrishna HN, Chakradhar Rao U, Mohan L.
    Journal: Indian J Med Res; 2007 Nov; 126(5):480-4. PubMed ID: 18160755.
    Abstract:
    BACKGROUND & OBJECTIVE: Use of typical antipsychotics like haloperidol in treatment of schizophrenia is associated with a high incidence of extrapyramidal side effects. In rodents, administration of haloperidol leads to the development of a behavioural state called catalepsy, in which the animal is not able to correct an externally imposed posture. In the present study we evaluated the anticataleptic efficacy of NR-ANX-C, a polyherbal formulation containing bioactives of Withania somnifera, Ocimum sanctum, Camellia sinensis, triphala and shilajit in haloperidol induced catalepsy in mice. METHODS: Five groups (n = 6) of male albino mice were used in the study. Catalepsy was induced by ip administration of haloperidol (1mg/kg). The degree of catalepsy (cataleptic score) was measured as the time the animal maintained an imposed posture. We compared the anticataleptic efficacy of NR-ANX-C (10, 25 and 50 mg/kg) with scopolamine (1 mg/kg). The superoxide dismutase (SOD) level in brain tissue was also estimated to correlate the levels of oxidative stress and degree of catalepsy in the animal. RESULTS: Significant (P<0.01) reduction in the cataleptic scores was observed in all NR-ANX-C treated groups and maximum reduction was observed in the NR-ANX-C (25 mg/kg) treated group. Significant (P<0.05) reduction in SOD activity was observed in NR-ANX-C (25 and 50 mg/kg) treated groups and maximum reduction was observed in NR-ANX-C (25mg/kg) treated group. INTERPRETATION & CONCLUSION: In our study, maximum reduction in cataleptic score was observed in NR-ANX-C (25 mg/kg) treated group. The maximum reduction in SOD activity was also observed in the same group. These findings suggest a possible involvement of the antioxidant potential of NRANX- C in alleviating haloperidol induced catalepsy.
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