Alkaloids content, cytotoxicity and anti-Toxoplasma gondii activity of Psidium guajava L. and Tinospora crispa

Authors

  • Wei Cai Lee School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang
  • Roziahanim Mahmud School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang
  • Rahmah Noordin Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800 Pulau Pinang
  • Suthagar Pillai Piaru School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang
  • Shanmugapriya Perumal School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang
  • Sabariah Ismail Centre For Drug Research, Universiti Sains Malaysia, 11800 Pulau Pinang

DOI:

https://doi.org/10.3329/bjp.v7i4.12499

Keywords:

Alkaloid, Cytotoxicity, In vitro anti-Toxoplasma gondii assay, Psidium guajava, Tinospora crispa

Abstract

The alkaloids content, cytotoxicity activity and anti-parasitic activity of Tinospora crispa Miers and Psidium guajava L. against parasite Toxoplasma gondii were investigated. Both of the crude plant extracts contained high amount of crude alkaloids and were not toxic to Vero cells (EC50 >100 µg/mL). Following non-toxicity finding of the extracts, the in vitro anti-parasitic assay was carried out with clindamycin served as the positive control. T. crispa stem crude extract with EC50 value of 7.71 ± 1.56 µg/mL, showed potential anti-T. gondii activity as the results were comparable to clindamycin (EC50 = 6.24 ± 0.53 µg/mL). These findings suggest that stem extract of T. crispa Miers contained some potential active compounds against Toxoplasma gondii. Selective important alkaloids in the T. crispa stem fractions may be the key factor for their anti-parasitic activity. Further study is being carried out to investigate for potential bioactives present in the T. crispa extract through bioactivity guided fractionation.

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Published

2012-11-22

How to Cite

Lee, W. C., R. Mahmud, R. Noordin, S. P. Piaru, S. Perumal, and S. Ismail. “Alkaloids Content, Cytotoxicity and Anti-Toxoplasma Gondii Activity of Psidium Guajava L. And Tinospora Crispa”. Bangladesh Journal of Pharmacology, vol. 7, no. 4, Nov. 2012, pp. 272-6, doi:10.3329/bjp.v7i4.12499.

Issue

Vol. 7 No. 4 (2012)

Section

Research Articles

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