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Chaniad P, Techarang T, Phuwajaroanpong A, Plirat W, Na-Ek P, Konyanee A, Viriyavejakul P, Septama AW, Punsawad C. Preclinical evaluation of antimalarial activity of CPF-1 formulation as an alternative choice for the treatment of malaria. BMC Complement Med Ther 2023; 23:144. [PMID: 37143036 PMCID: PMC10158254 DOI: 10.1186/s12906-023-03973-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 04/25/2023] [Indexed: 05/06/2023] Open
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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Affiliation(s)
- Prapaporn Chaniad
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Tachpon Techarang
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand
| | - Arisara Phuwajaroanpong
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Walaiporn Plirat
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Prasit Na-Ek
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Atthaphon Konyanee
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Parnpen Viriyavejakul
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand
| | - Abdi Wira Septama
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, Cibinong Science Center, National Research and Innovation Agency (BRIN), West Java, 16915, Indonesia
| | - Chuchard Punsawad
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand.
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand.
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Chaniad P, Techarang T, Phuwajaroanpong A, Plirat W, Viriyavejakul P, Septama AW, Punsawad C. Antimalarial efficacy and toxicological assessment of medicinal plant ingredients of Prabchompoothaweep remedy as a candidate for antimalarial drug development. BMC Complement Med Ther 2023; 23:12. [PMID: 36653791 PMCID: PMC9847039 DOI: 10.1186/s12906-023-03835-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 01/05/2023] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Drug resistance exists in almost all antimalarial drugs currently in use, leading to an urgent need to identify new antimalarial drugs. Medicinal plant use is an alternative approach to antimalarial chemotherapy. This study aimed to explore potent medicinal plants from Prabchompoothaweep remedy for antimalarial drug development. METHODS Forty-eight crude extracts from Prabchompoothaweep remedy and its 23 plants ingredients were investigated in vitro for antimalarial properties using Plasmodium lactate dehydrogenase (pLDH) enzyme against Plasmodium falciparum K1 strain and toxicity effects were evaluated in Vero cells. The plant with promising antimalarial activity was further investigated using gas chromatography-mass spectrometry (GC-MS) to identify phytochemicals. Antimalarial activity in mice was evaluated using a four-day suppressive test against Plasmodium berghei ANKA at dose of 200, 400, and 600 mg/kg body weight, and acute toxicity was analyzed. RESULTS Of the 48 crude extracts, 13 (27.08%) showed high antimalarial activity against the K1 strain of P. falciparum (IC50 < 10 μg/ml) and 9 extracts (18.75%) were moderately active (IC50 = 11-50 μg/ml). Additionally, the ethanolic extract of Prabchompoothaweep remedy showed moderate antimalarial activity against the K1 strain of P. falciparum (IC50 = 14.13 μg/ml). Based on in vitro antimalarial and toxicity results, antimalarial activity of the aqueous fruit extract of Terminalia arjuna (IC50 = 4.05 μg/ml and CC50 = 219.6 μg/ml) was further studied in mice. GC-MS analysis of T. arjuna extract identified 22 compounds. The most abundant compounds were pyrogallol, gallic acid, shikimic acid, oleamide, 5-hydroxymethylfurfural, 1,1-diethoxy-ethane, quinic acid, and furfural. Analysis of the four-day suppressive test indicated that T. arjuna extract at dose of 200, 400, and 600 mg/kg body weight significantly suppressed the Plasmodium parasites by 28.33, 45.77, and 67.95%, respectively. In the acute toxicity study, T. arjuna extract was non-toxic at 2000 mg/kg body weight. CONCLUSIONS The aqueous fruit extract of T. arjuna exerts antimalarial activity against Plasmodium parasites found in humans (P. falciparum K1) and mice (P. berghei ANKA). Acute toxicity studies showed that T. arjuna extract did not show any lethality or adverse effects up to a dose of 2000 mg/kg.
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Affiliation(s)
- Prapaporn Chaniad
- grid.412867.e0000 0001 0043 6347Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand ,grid.412867.e0000 0001 0043 6347Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160 Thailand
| | - Tachpon Techarang
- grid.412867.e0000 0001 0043 6347Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand ,grid.412867.e0000 0001 0043 6347Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160 Thailand
| | - Arisara Phuwajaroanpong
- grid.412867.e0000 0001 0043 6347Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand ,grid.412867.e0000 0001 0043 6347Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160 Thailand
| | - Walaiporn Plirat
- grid.412867.e0000 0001 0043 6347Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand ,grid.412867.e0000 0001 0043 6347Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160 Thailand
| | - Parnpen Viriyavejakul
- grid.10223.320000 0004 1937 0490Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400 Thailand
| | - Abdi Wira Septama
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, National Research and Innovation Agency (BRIN), Cibinong Science Center, Cibinong, West Java 16915 Indonesia
| | - Chuchard Punsawad
- grid.412867.e0000 0001 0043 6347Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand ,grid.412867.e0000 0001 0043 6347Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160 Thailand
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Gopčević K, Grujić S, Arsenijević J, Džamić A, Veličković I, Izrael-Živković L, Medić A, Mudrić J, Soković M, Đurić A. Bioactivity and phenolics profile of aqueous and ethyl acetate extracts of Satureja kitaibelii Wierzb. ex Heuff. obtained by ultrasound-assisted extraction. Sci Rep 2022; 12:21221. [PMID: 36481842 PMCID: PMC9731972 DOI: 10.1038/s41598-022-25668-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
The aim of the study was to investigate the biological activity and chemical composition of Satureja kitaibelii Wierzb. ex Heuff. LC-PDA/MS analyses for the aqueous extracts (A1-stem, leaves and flowers, A2-leaves and flowers) and ethyl-acetate extracts (E1-stem, leaves and flowers, E2-leaves and flowers) obtained by ultrasound-assisted extraction enabled the identification of thirty-four compounds. Quantitative analysis revealed that the aqueous extract obtained from leaves and flowers was the richest in total phenolic acids (65.36 mg/g) and flavonoids (21.17 mg/g). The total polyphenol content was the highest in the aqueous extract obtained from leaves and flowers (274 ± 2.4 mg Gallic Acid equivalents/g). The best antioxidant activity was observed for the same extract using the DPPH (SC50 20 ± 10 µg/mL), ABTS (2.834 ± 0.02 mg Ascorbic Acid/g), FRAP (1.922 ± 0.03 mmol Fe2+/mg), and total reducing power tests (16.4 ± 1.0 mg Ascorbic Acid/g). Both ethyl acetate extracts were the most active against strains of Bacillus cereus and Micrococcus flavus (MIC 1.70-1.99 mg/mL and 1.99-3.41 mg/mL, respectively). They were more efficient against Aspergillus ochraceus (MFC 0.86 mg/mL) and towards HeLa cell lines. All the obtained results implied the good potential of the investigated extracts to be used as effective preservatives and functional ingredients in food products and dietary supplements.
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Affiliation(s)
- Kristina Gopčević
- grid.7149.b0000 0001 2166 9385Institute of Chemistry in Medicine “Prof. Dr. Petar Matavuljˮ, Faculty of Medicine, University of Belgrade, Višegradska 26, Belgrade, 11000 Serbia
| | - Slavica Grujić
- grid.7149.b0000 0001 2166 9385Institute of Botany and Botanical Garden Jevremovac, Faculty of Biology, University of Belgrade, Studentski Trg 16, Takovska 43, Belgrade, 11000 Serbia
| | - Jelena Arsenijević
- grid.7149.b0000 0001 2166 9385Department for Pharmacognosy, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade, 11000 Serbia
| | - Ana Džamić
- grid.7149.b0000 0001 2166 9385Institute of Botany and Botanical Garden Jevremovac, Faculty of Biology, University of Belgrade, Studentski Trg 16, Takovska 43, Belgrade, 11000 Serbia
| | - Ivona Veličković
- grid.7149.b0000 0001 2166 9385Institute of Botany and Botanical Garden Jevremovac, Faculty of Biology, University of Belgrade, Studentski Trg 16, Takovska 43, Belgrade, 11000 Serbia
| | - Lidija Izrael-Živković
- grid.7149.b0000 0001 2166 9385Institute of Chemistry in Medicine “Prof. Dr. Petar Matavuljˮ, Faculty of Medicine, University of Belgrade, Višegradska 26, Belgrade, 11000 Serbia
| | - Ana Medić
- grid.7149.b0000 0001 2166 9385Institute of Chemistry in Medicine “Prof. Dr. Petar Matavuljˮ, Faculty of Medicine, University of Belgrade, Višegradska 26, Belgrade, 11000 Serbia
| | - Jelena Mudrić
- Institute for Medicinal Plant Research “Dr. Josif Pančić”, Tadeuša Košćuška 1, Belgrade, 11000 Serbia
| | - Marina Soković
- grid.7149.b0000 0001 2166 9385Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, 11000 Serbia
| | - Ana Đurić
- grid.418584.40000 0004 0367 1010Institute of Oncology and Radiology of Serbia, Pasterova 11, Belgrade, Serbia
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Exploring Potential Antimalarial Candidate from Medicinal Plants of Kheaw Hom Remedy. Trop Med Infect Dis 2022; 7:tropicalmed7110368. [PMID: 36355909 PMCID: PMC9695212 DOI: 10.3390/tropicalmed7110368] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/29/2022] [Accepted: 11/08/2022] [Indexed: 11/12/2022] Open
Abstract
The Kheaw Hom remedy is a traditional Thai medicine widely used to treat fevers. Some plant ingredients in this remedy have been investigated for their antimicrobial, antiviral, anti-inflammatory, and antioxidant activities. However, there have been no reports on the antimalarial activities of the medicinal plants in this remedy. Therefore, this study focuses on identifying potential antimalarial drug candidates from the medicinal plant ingredients of the Kheaw Hom remedy. Eighteen plants from the Kheaw Hom remedy were extracted using distilled water and ethanol. All extracts were investigated for their in vitro antimalarial activity and cytotoxicity. An extract that exhibited good in vitro antimalarial activity and low toxicity was selected for further investigation by using Peter’s 4-day suppressive test and an acute oral toxicity evaluation in mice. Based on the in vitro antimalarial activity and cytotoxicity studies, the ethanolic extract of Globba malaccensis rhizomes showed promising antimalarial activity against the Plasmodium falciparum K1 strain (IC50 = 1.50 µg/mL) with less toxicity to Vero cells (CC50 of >80 µg/mL). This extract exhibited a significant dose-dependent reduction in parasitemia in P. berghei-infected mice. The maximum suppressive effect of this extract (60.53%) was observed at the highest dose administered (600 mg/kg). In a single-dose acute toxicity test, the animals treated at 2000 mg/kg died within 48 h after extract administration. In conclusion, our study indicates that the ethanolic extract of G. malaccensis rhizomes exhibited in vitro and in vivo antimalarial activities, which could serve as a promising starting point for antimalarial drug.
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Sulaiman M, Nissapatorn V, Rahmatullah M, Paul AK, Rajagopal M, Rusdi NA, Seelan JSS, Suleiman M, Zakaria ZA, Wiart C. Antimicrobial Secondary Metabolites from the Mangrove Plants of Asia and the Pacific. Mar Drugs 2022; 20:643. [PMID: 36286466 PMCID: PMC9605323 DOI: 10.3390/md20100643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 11/07/2022] Open
Abstract
Microbes such as the White Spot Syndrome Virus account for severe losses in the shrimp farming industry globally. This review examines the literature on the mangrove plants of Asia and the Pacific with antibacterial, antifungal, or antiviral activities. All of the available data published on this subject were collected from Google Scholar, PubMed, Science Direct, Web of Science, ChemSpider, PubChem, and a library search from 1968 to 2022. Out of about 286 plant species, 119 exhibited antimicrobial effects, and a total of 114 antimicrobial natural products have been identified including 12 with MIC values below 1 µg/mL. Most of these plants are medicinal. The mangrove plants of Asia and the Pacific yield secondary metabolites with the potential to mitigate infectious diseases in shrimp aquaculture.
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Affiliation(s)
- Mazdida Sulaiman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences and World Union for Herbal Drug Discovery (WUHeDD), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Mohammed Rahmatullah
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhaka 1207, Bangladesh
| | - Alok K. Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Mogana Rajagopal
- Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur 56000, Malaysia
| | - Nor Azizun Rusdi
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Jaya Seelan Sathya Seelan
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Monica Suleiman
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Zainul Amiruddin Zakaria
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Christophe Wiart
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
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Yincharoen K, Adekoya AE, Chokpaisarn J, Kunworarath N, Jaisamut P, Limsuwan S, Chusri S. Anti-infective effects of traditional household remedies described in the national list of essential medicines, Thailand, on important human pathogens. J Herb Med 2021. [DOI: 10.1016/j.hermed.2020.100401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ngemenya MN, Djeukem GGR, Nyongbela KD, Bate PNN, Babiaka SB, Monya E, Kanso RK. Microbial, phytochemical, toxicity analyses and antibacterial activity against multidrug resistant bacteria of some traditional remedies sold in Buea Southwest Cameroon. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:150. [PMID: 31242939 PMCID: PMC6595550 DOI: 10.1186/s12906-019-2563-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 06/13/2019] [Indexed: 11/17/2022]
Abstract
Background Traditional medicine remedies are commonly used for treatment of diverse ailments including bacterial infections. The activity against resistant bacteria and safety of some remedies sold as anti-infective treatments in market places in Buea, Southwest Cameroon were investigated as potential alternative treatment to counter increasing antibiotic resistance. Methods Ten remedies were purchased, their components documented and microbial load estimated. Methanol extracts of the remedies were tested for antibacterial activity by disc diffusion and microdilution. Cytotoxicity was evaluated on monkey kidney epithelial cells (LLC-MK2) while acute oral toxicity was done in BALB/c mice for the bactericidal extract. Extracts were further analysed using phytochemical tests. Results All the remedies had microbial loads above the acceptable limit of 105 CFU/g. The highest activity was produced by extracts of four remedies (TP 1, 2, 4, 6a, 6b) against all clinical isolates among which three were active against four control strains. Zones of inhibition ranged from 8 to 27 mm. Two of the four extracts produced zones ≥20 mm against multidrug resistant clinical isolates of Citrobacter freundii and Escherichia coli but were less active compared to Gentamycin positive control (P < 0.0001–0.0014). The most active extracts also recorded minimum inhibitory concentrations of 1 to 4 mg/mL. One of them (TP2) was bactericidal against a clinical isolate of methicillin–resistant Staphylococcus aureus with a minimum bactericidal concentration of 8 mg/mL. Extracts of six remedies did not show cytotoxicity and no mortality or adverse effect was recorded in the acute oral toxicity test. Phytochemical screening showed the most active extracts contained relatively high amounts of alkaloids and flavonoids. Conclusion Only four of the eight remedies tested showed activity against multidrug resistant bacteria suggesting some of these remedies may not be effective against bacterial infections. Production and handling methods should be improved and the product quality controlled to ensure biosecurity. The remedies which were both active and non-toxic should be further investigated including in vivo experiments to assess their efficacy.
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Ahmad Z, Hassan SS, Azim S. A Therapeutic Connection between Dietary Phytochemicals and ATP Synthase. Curr Med Chem 2017; 24:3894-3906. [PMID: 28831918 PMCID: PMC5738703 DOI: 10.2174/0929867324666170823125330] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 01/01/1970] [Accepted: 08/18/2017] [Indexed: 12/25/2022]
Abstract
For centuries, phytochemicals have been used to prevent and cure multiple health ailments. Phytochemicals have been reported to have antioxidant, antidiabetic, antitussive, antiparasitic, anticancer, and antimicrobial properties. Generally, the therapeutic use of phy-tochemicals is based on tradition or word of mouth with few evidence-based studies. Moreo-ver, molecular level interactions or molecular targets for the majority of phytochemicals are unknown. In recent years, antibiotic resistance by microbes has become a major healthcare concern. As such, the use of phytochemicals with antimicrobial properties has become perti-nent. Natural compounds from plants, vegetables, herbs, and spices with strong antimicrobial properties present an excellent opportunity for preventing and combating antibiotic resistant microbial infections. ATP synthase is the fundamental means of cellular energy. Inhibition of ATP synthase may deprive cells of required energy leading to cell death, and a variety of die-tary phytochemicals are known to inhibit ATP synthase. Structural modifications of phyto-chemicals have been shown to increase the inhibitory potency and extent of inhibition. Site-directed mutagenic analysis has elucidated the binding site(s) for some phytochemicals on ATP synthase. Amino acid variations in and around the phytochemical binding sites can re-sult in selective binding and inhibition of microbial ATP synthase. In this review, the therapeu-tic connection between dietary phytochemicals and ATP synthase is summarized based on the inhibition of ATP synthase by dietary phytochemicals. Research suggests selective target-ing of ATP synthase is a valuable alternative molecular level approach to combat antibiotic resistant microbial infections.
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Affiliation(s)
- Zulfiqar Ahmad
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, Missouri 63501, USA
| | - Sherif S Hassan
- Department of Medical Education, California University of Sciences and Medicine, School of Medicine (Cal Med-SOM), Colton, California 92324, USA
| | - Sofiya Azim
- Department of Biochemistry, Kirksville College of Osteopathic Medicine, A.T. Still University, Kirksville, Missouri 63501, USA
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