scholarly journals Antituberculosis activity, phytochemical identification of Costus speciosus (J. Koenig) Sm., Cymbopogon citratus (DC. Ex Nees) Stapf., and Tabernaemontana coronaria (L.) Willd. and their effects on the growth kinetics and cellular integrity of Mycobacterium tuberculosis H37Rv

Author(s):  
Suriyati Mohamad ◽  
Nur Najihah Ismail ◽  
Thaigarajan Parumasivam ◽  
Pazilah Ibrahim ◽  
Hasnah Osman ◽  
...  
2021 ◽  
Vol 19 (2) ◽  
pp. 171-178
Author(s):  
Suriyati Mohamad ◽  
◽  
Nur Najihah Ismail ◽  
Hasnah Osman ◽  
Habibah A Wahab ◽  
...  

Global tuberculosis (TB) burden underscores the importance of developing new effective anti-TB drugs. This study was concerned with prospecting for potential anti-TB agents from Malaysian medicinal plants. In our previous study, we have reported that n-hexane fractions of Costus speciosus (C. speciosus) (J. Koening) Sm., Cymbopogon citratus (C. citratus ) (DC.) Stapf. and Tabernaemontana coronaria (T. coronaria) (Jacq.) posses promising anti-TB activity against Mycobacterium tuberculosis (M. tuberculosis) H37Rv with minimum inhibitory concentrations (MICs) of 200–100 µg/mL. This study aimed to investigate the interactions of these active fractions with first-line anti-TB drugs (isoniazid, rifampicin, ethambutol and streptomycin) against M. tuberculosis H37Rv using the microdilution checkerboard method. C. citratus (stem-rhizome) n-hexane fraction exhibited synergism with all drugs except ethambutol which showed additive interaction. Synergistic was also observed when C. speciosus (stem-flower) n-hexane and T. coronaria (leaf) n-hexane fractions in combination with rifampicin. C. speciosus (stem-flower) n-hexane and T. coronaria (leaf) n-hexane exhibited additive interaction with isoniazid, ethambutol and streptomycin. Hence, these active plants are worthy of further investigations for the discovery of anti-TB drug leads.


Author(s):  
Cut Fatimah ◽  
Erfan Wahyudi ◽  
Ernawati B.

According to WHO has identified so much people with tuberculosis disorder, and includes a disease that causes death. Mycobacterium tuberculosis has been resistant to antituberculosis drugs were used, while the discovery of new synthetic antituberculosis are very slow. Traditionally, mimba cortex has been used to treat cough and bloody sputum. In previous research proved that the ethanol extract of mimba cortex can inhibit the in vitro growth of Mycobacterium tuberculosis. This study was conducted to determine the potential of mimba cortex as antituberculosis in vivo and toxicity test. Antituberculosis potency test in vivo in guinea pigs infected with Mycobacterium tuberculosis H37Rv directly into the bronchi using nebulizer. Then given mimba cortex extract 3 times a day 100 mg/kgBW and 50 mg/kgBW. Isoniazid, Rifampicin and Ethambutol used as a comparison. Antituberculosis assessment examination conducted by Mycobacterium tuberculosis on bronchial fluid speciments were taken every two weeks and tested in culture with Lowenstein-Jensen method. Acute toxicity test conducted on mice, the LD50 value calculation and observation of liver, kidney, and lung histopathology. The result of research showed that the ethanol extract of mimba cortex have antituberculosis activity in guinea pigs which has infected with Mycobacterium tuberculosis H37Rv, 3 times daily dosing of 100 mg/kgBW for 6 weeks, showed that bacterium from +3 to negative, and 3 times daily dosing of 50mg/kgBW showed that bacterium from +3 to +1. Acute toxicity test results showed LD50 11.85 ± 0.571. That is including mild toxic category.Keywords: mimba cortex, antituberculosis activity, acute toxicity


FEBS Journal ◽  
2010 ◽  
Vol 278 (2) ◽  
pp. 341-353 ◽  
Author(s):  
Anjum Mahmood ◽  
Shubhra Srivastava ◽  
Sarita Tripathi ◽  
Mairaj Ahmed Ansari ◽  
Mohammad Owais ◽  
...  

2010 ◽  
Vol 45 (8) ◽  
pp. 3335-3345 ◽  
Author(s):  
Naresh Sunduru ◽  
Leena Gupta ◽  
Vinita Chaturvedi ◽  
Richa Dwivedi ◽  
Sudhir Sinha ◽  
...  

Tuberculosis ◽  
2012 ◽  
Vol 92 (1) ◽  
pp. 72-83 ◽  
Author(s):  
Robert C. Reynolds ◽  
Subramaniam Ananthan ◽  
Ellen Faaleolea ◽  
Judith V. Hobrath ◽  
Cecil D. Kwong ◽  
...  

2011 ◽  
Vol 39 (3) ◽  
pp. 2157-2162 ◽  
Author(s):  
Fan Chen ◽  
XiaoLian Zhang ◽  
Jing Zhou ◽  
Shengwu Liu ◽  
Junyan Liu

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