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 RESEARCH ARTICLE
Year : 2016  |  Volume : 48  |  Issue : 5  |  Page : 526-530

Evaluation of in vivo antimycobacterial activity of some folklore medicinal plants and enumeration of colony forming unit in murine model


1 Department of Veterinary Public Health, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India
2 Department of Veterinary Pathology, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India
3 Department of Pharmacology and Toxicology, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam, India

Correspondence Address:
Dr. Acheenta Gohain Barua
Department of Veterinary Public Health, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, Assam
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0253-7613.190737

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Objectives: The present study was carried out to investigate the in vivo antimycobacterial activity of methanol extract of Alstonia scholaris and Mucuna imbricata in murine model. Materials and Methods: Female BALB/c mice were infected with the Mycobacterium tuberculosis H 37 Rv suspension. Extracts were administered orally for 2 weeks from 7 th day postinfection at a dose of 200 mg/kg and rifampicin at 20 mg/kg as standard. The synergistic groups were 10 and 100 mg/kg for rifampicin and extract, respectively. Results: The final body weight of mycobacteria-infected group was significantly reduced (15.41 ± 0.42, P < 0.01), but following treatment with the plant extract plus rifampicin could elevate the body weight. Colony forming unit (CFU) count of lung (8.71 ± 0.01) and spleen (8.59 ± 0.01) was significantly higher in infected and untreated group (P < 0.01). It was observed that activity of the synergistic group displayed powerful and maximum response against tuberculosis (TB) infection with lower CFU counts. Histopathology study showed cells such as lymphocytes, epithelioid, Langhans giant cell, and fibrous tissue proliferation in lungs; depletion of lymphocytes in the spleen. Conclusions: The data indicate that methanol extract of A. scholaris has potential antimycobacterial activity, and the synergistic group consisting of rifampicin and A. scholaris could be a rational choice for the treatment of TB.






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