Lorestan University of Medical Sciences Herbal Medicines Journal 2538-2144 3 4 2018 05 01 Evaluation of Effectiveness of Ethanolic Extract of Curcuma longa, discretely and in Combination with Chloroquine against Chloroquine-Sensitive Strain of Plasmodium berghei 133 138 221346 10.22087/herb%20med%20j.v3i3.741 EN Peyman Heydarian 1 Scientific research center, Tehran University of Medical Sciences, Tehran, Iran 2 Department of Medical Parasitology and Mycology, School of Medicine, Qazvin, University of Medical Sciences, Qazvin, Iran Mehdi Nateghpour 3 Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 4 Research Center of Quran, Hadith and Medicine, Tehran University of Medical Sciences, Tehran, Iran Nahideh Mazhari Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Afsaneh Motevalli Haghi Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Leila Fariva Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Effat Souri Department of Pharmaceutical Chemical, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran Amirreza Javadi Mamaghani Department of Parasitology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran Bahman Rahimi Esboei Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Journal Article 2025 05 20 Background and Aim: Malaria is a parasitic disease and one of the most important public health problem. Chemical medications such as chloroquine, primaquine, pyrimethamine, mefloquine, artemisinin and fansidar are commonly used to treat malaria but most of the antimalarials have encountered with problem of drug resistance. Therefore, new therapeutic materials are promptly needed. During many years natural medicines, especially medicinal plants have been considered as the pivotal means for treatment of malaria in some endemic areas. In this study, we evaluated the effectiveness of ethanolic extract of Curcuma longa L, discretely and in combination with chloroquine against chloroquine-sensitive strain of Plasmodium berghei.Materials and Methods: Fifty percent effective dose (ED50s) of C. longa and chloroquine were determined according to peter̛ s method. Then based on the obtained ED50s combination of Curcuma longa and chloroquine with different ratios were examined against the strain.Results: The results of ED50s for chloroquine and C. longa were 1.4mg/kg and 1250mg/kg, respectively. Combination of C. longa ethanolic extract with chloroquine in ratio of 80/20 showed the highest activity with 71.75% to inhibit the growth of P. berghei indicating synergistic interaction in the combination treatment.Conclusion: It appears that turmeric (C. longa) extract is an effective anti-malarial substance especially in combination with chloroquine.  https://hmj.lums.ac.ir/article_221346_5ac20b12787894551f2b5d2fda334b4f.pdf