Preclinical evaluation of antimalarial activity of CPF-1 formulation as an alternative choice for the treatment of malaria

Abstract Background Kheaw Hom remedy is a traditional Thai medicine used to treat fever. Some plants used in the Kheaw Hom remedy show promising in vitro antimalarial activity. This study prepared novel formulations of plants from the Kheaw Hom remedy and evaluated their antimalarial and toxicologic...

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Main Authors: Prapaporn Chaniad, Tachpon Techarang, Arisara Phuwajaroanpong, Walaiporn Plirat, Prasit Na-Ek, Atthaphon Konyanee, Parnpen Viriyavejakul, Abdi Wira Septama, Chuchard Punsawad
Format: Article
Language:English
Published: BMC 2023-05-01
Series:BMC Complementary Medicine and Therapies
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Online Access:https://doi.org/10.1186/s12906-023-03973-2
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author Prapaporn Chaniad
Tachpon Techarang
Arisara Phuwajaroanpong
Walaiporn Plirat
Prasit Na-Ek
Atthaphon Konyanee
Parnpen Viriyavejakul
Abdi Wira Septama
Chuchard Punsawad
author_facet Prapaporn Chaniad
Tachpon Techarang
Arisara Phuwajaroanpong
Walaiporn Plirat
Prasit Na-Ek
Atthaphon Konyanee
Parnpen Viriyavejakul
Abdi Wira Septama
Chuchard Punsawad
author_sort Prapaporn Chaniad
collection DOAJ
description Abstract Background Kheaw Hom remedy is a traditional Thai medicine used to treat fever. Some plants used in the Kheaw Hom remedy show promising in vitro antimalarial activity. This study prepared novel formulations of plants from the Kheaw Hom remedy and evaluated their antimalarial and toxicological activities. Methods Seven new formulations were prepared by combining at least three herbs of six selected plants from the Kheaw Hom remedy, namely Mammea siamensis Kosterm., Mesua ferrea L., Dracaena loureiroi Gagnep., Pogostemon cablin (Blanco) Benth., Kaempferia galanga L, and Eupatorium stoechadosmum Hance. In vitro antimalarial activities of each formulation’s aqueous and ethanolic extracts were evaluated using the parasite lactate dehydrogenase (pLDH) assay. Cytotoxicity in Vero and HepG2 cells was assessed using the MTT assay. An extract with good antimalarial potency and selectivity index (SI) was selected for in vivo antimalarial activity using Peter’s 4-day suppressive test and acute oral toxicity test in mice. In addition, bioactive compounds were identified using Gas chromatography-mass spectrometry (GC-MS) analysis. Results Among the seven new formulations, ethanolic extracts of CPF-1 (Formulation 1) showed the highest activity with an IC50 value of 1.32 ± 0.66 µg/ml, followed by ethanolic extracts of Formulation 4 and Formulation 6 with an IC50 value of 1.52 ± 0.28 µg/ml and 2.48 ± 0.34 µg/ml, respectively. The highest SI values were obtained for the ethanolic extract of CPF-1 that was selected to confirm its in vivo antimalarial activity and toxicity. The results demonstrated a significant dose-dependent reduction in parasitemia. Maximum suppressive effect of the extract (72.01%) was observed at the highest dose administered (600 mg/kg). No significant toxicity was observed after the administration of 2000 mg/kg. Using GC-MS analysis, the most abundant compound in the ethanolic extract of CPF-1 was ethyl p-methoxycinnamate (14.32%), followed by 2-propenoic acid, 3-phenyl-, ethyl ester, (E)- (2.50%), and pentadecane (1.85%). Conclusion The ethanolic extract of CPF-1 showed promising in vitro and in vivo antimalarial efficacy, with no toxic effects at a dose of 2000 mg/kg, suggesting that the ethanolic extract of CPF-1 may serves as a new herbal formulation for the treatment of malaria. Additional research is required for safety and clinical pharmacology studies.
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spelling doaj.art-702039afc87b4ac0bcd458fe75f8c5342023-05-07T11:05:13ZengBMCBMC Complementary Medicine and Therapies2662-76712023-05-0123111310.1186/s12906-023-03973-2Preclinical evaluation of antimalarial activity of CPF-1 formulation as an alternative choice for the treatment of malariaPrapaporn Chaniad0Tachpon Techarang1Arisara Phuwajaroanpong2Walaiporn Plirat3Prasit Na-Ek4Atthaphon Konyanee5Parnpen Viriyavejakul6Abdi Wira Septama7Chuchard Punsawad8Department of Medical Sciences, School of Medicine, Walailak UniversityDepartment of Tropical Pathology, Faculty of Tropical Medicine, Mahidol UniversityDepartment of Medical Sciences, School of Medicine, Walailak UniversityDepartment of Medical Sciences, School of Medicine, Walailak UniversityDepartment of Medical Sciences, School of Medicine, Walailak UniversityDepartment of Medical Sciences, School of Medicine, Walailak UniversityDepartment of Tropical Pathology, Faculty of Tropical Medicine, Mahidol UniversityResearch Center for Pharmaceutical Ingredient and Traditional Medicine, Cibinong Science Center, National Research and Innovation Agency (BRIN)Department of Medical Sciences, School of Medicine, Walailak UniversityAbstract Background Kheaw Hom remedy is a traditional Thai medicine used to treat fever. Some plants used in the Kheaw Hom remedy show promising in vitro antimalarial activity. This study prepared novel formulations of plants from the Kheaw Hom remedy and evaluated their antimalarial and toxicological activities. Methods Seven new formulations were prepared by combining at least three herbs of six selected plants from the Kheaw Hom remedy, namely Mammea siamensis Kosterm., Mesua ferrea L., Dracaena loureiroi Gagnep., Pogostemon cablin (Blanco) Benth., Kaempferia galanga L, and Eupatorium stoechadosmum Hance. In vitro antimalarial activities of each formulation’s aqueous and ethanolic extracts were evaluated using the parasite lactate dehydrogenase (pLDH) assay. Cytotoxicity in Vero and HepG2 cells was assessed using the MTT assay. An extract with good antimalarial potency and selectivity index (SI) was selected for in vivo antimalarial activity using Peter’s 4-day suppressive test and acute oral toxicity test in mice. In addition, bioactive compounds were identified using Gas chromatography-mass spectrometry (GC-MS) analysis. Results Among the seven new formulations, ethanolic extracts of CPF-1 (Formulation 1) showed the highest activity with an IC50 value of 1.32 ± 0.66 µg/ml, followed by ethanolic extracts of Formulation 4 and Formulation 6 with an IC50 value of 1.52 ± 0.28 µg/ml and 2.48 ± 0.34 µg/ml, respectively. The highest SI values were obtained for the ethanolic extract of CPF-1 that was selected to confirm its in vivo antimalarial activity and toxicity. The results demonstrated a significant dose-dependent reduction in parasitemia. Maximum suppressive effect of the extract (72.01%) was observed at the highest dose administered (600 mg/kg). No significant toxicity was observed after the administration of 2000 mg/kg. Using GC-MS analysis, the most abundant compound in the ethanolic extract of CPF-1 was ethyl p-methoxycinnamate (14.32%), followed by 2-propenoic acid, 3-phenyl-, ethyl ester, (E)- (2.50%), and pentadecane (1.85%). Conclusion The ethanolic extract of CPF-1 showed promising in vitro and in vivo antimalarial efficacy, with no toxic effects at a dose of 2000 mg/kg, suggesting that the ethanolic extract of CPF-1 may serves as a new herbal formulation for the treatment of malaria. Additional research is required for safety and clinical pharmacology studies.https://doi.org/10.1186/s12906-023-03973-2New formulationAntimalarial activityAcute toxicityPlasmodium bergheiPlasmodium falciparumKheaw Hom remedy
spellingShingle Prapaporn Chaniad
Tachpon Techarang
Arisara Phuwajaroanpong
Walaiporn Plirat
Prasit Na-Ek
Atthaphon Konyanee
Parnpen Viriyavejakul
Abdi Wira Septama
Chuchard Punsawad
Preclinical evaluation of antimalarial activity of CPF-1 formulation as an alternative choice for the treatment of malaria
BMC Complementary Medicine and Therapies
New formulation
Antimalarial activity
Acute toxicity
Plasmodium berghei
Plasmodium falciparum
Kheaw Hom remedy
title Preclinical evaluation of antimalarial activity of CPF-1 formulation as an alternative choice for the treatment of malaria
title_full Preclinical evaluation of antimalarial activity of CPF-1 formulation as an alternative choice for the treatment of malaria
title_fullStr Preclinical evaluation of antimalarial activity of CPF-1 formulation as an alternative choice for the treatment of malaria
title_full_unstemmed Preclinical evaluation of antimalarial activity of CPF-1 formulation as an alternative choice for the treatment of malaria
title_short Preclinical evaluation of antimalarial activity of CPF-1 formulation as an alternative choice for the treatment of malaria
title_sort preclinical evaluation of antimalarial activity of cpf 1 formulation as an alternative choice for the treatment of malaria
topic New formulation
Antimalarial activity
Acute toxicity
Plasmodium berghei
Plasmodium falciparum
Kheaw Hom remedy
url https://doi.org/10.1186/s12906-023-03973-2
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