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Sureshkumar J, Jenipher C, Sriramavaratharajan V, Gurav SS, Gandhi GR, Ravichandran K, Ayyanar M. Genus Equisetum L: Taxonomy, toxicology, phytochemistry and pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2023; 314:116630. [PMID: 37207877 DOI: 10.1016/j.jep.2023.116630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/21/2023] [Accepted: 05/09/2023] [Indexed: 05/21/2023]
Abstract
INTRODUCTION The genus Equisetum (Equisetaceae) is cosmopolitan in distribution, with 41 recognized species. Several species of Equisetum are widely used in treating genitourinary and related diseases, inflammatory and rheumatic problems, hypertension, and wound healing in traditional medicine practices worldwide. This review intends to present information on the traditional uses, phytochemical components, pharmacological activities, and toxicity of Equisetum spp. and to analyze the new insights for further study. METHODS Relevant literature has been scanned and collected via various electronic repositories, including PubMed, Science Direct, Google Scholar, Springer Connect, and Science Online, from 1960 to 2022. RESULTS Sixteen Equisetum spp. were documented as widely used in traditional medicine practices by different ethnic groups throughout the world. A total of 229 chemical compounds were identified from Equisetum spp. with the major group of constituents being flavonol glycosides and flavonoids. The crude extracts and phytochemicals of Equisetum spp. exhibited significant antioxidant, antimicrobial, anti-inflammatory, antiulcerogenic, antidiabetic, hepatoprotective, and diuretic properties. A wide range of studies have also demonstrated the safety of Equisetum spp. CONCLUSION The reported pharmacological properties of Equisetum spp. support its use in traditional medicine, though there are gaps in understanding the traditional usage of these plants for clinical experiments. The documented information revealed that the genus is not only a great herbal remedy but also has several bioactives with the potential to be discovered as novel drugs. Detailed scientific investigation is still needed to fully understand the efficacy of this genus; hence, very few Equisetum spp. were studied in detail for phytochemical and pharmacological investigation. Moreover, its bioactives, structure-activity connection, in vivo activity, and associated mechanism of action ought to be explored further.
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Affiliation(s)
- J Sureshkumar
- Department of Botany, Sri Kaliswari College (Autonomous), (Affiliated to Madurai Kamaraj University), Sivakasi, 626 123, India.
| | - C Jenipher
- Department of Botany, A.V.V.M. Sri Pushpam College (Affiliated to Bharathidasan University), Poondi, Thanjavur, 613 503, Tamil Nadu, India.
| | - V Sriramavaratharajan
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, 613 401, India.
| | - S S Gurav
- Department of Pharmacognosy, Goa College of Pharmacy, Panaji, Goa University, Goa, 403 001, India.
| | - G Rajiv Gandhi
- Department of Biosciences, Rajagiri College of Social Sciences, Kalamaserry, Kochi, 683104, India.
| | - K Ravichandran
- Department of Physics, A.V.V.M. Sri Pushpam College (Affiliated to Bharathidasan University), Poondi, Thanjavur, 613 503, Tamil Nadu, India.
| | - M Ayyanar
- Department of Botany, A.V.V.M. Sri Pushpam College (Affiliated to Bharathidasan University), Poondi, Thanjavur, 613 503, Tamil Nadu, India.
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Gu H, Yi T, Lin P, Hu J. Study on essential oil, antioxidant activity, anti-human prostate cancer effects, and induction of apoptosis by Equisetum arvense. OPEN CHEM 2022. [DOI: 10.1515/chem-2022-0203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
In this study, we have reported the chemical composition of Equisetum arvense essential oil and the anti-cancer activity of the plant against the prostate cancer cell line. The essential oil was obtained using the hydro-distillation assay. The chemical composition was identified using the gas chromatographic methods including gas chromatography/flame ionization detector and gas chromatography/mass spectrometry. The antioxidant activity of the essential oil and extract was evaluated using classical methods. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was run to evaluate the cytotoxic effect of the essential oil and extract on the prostate cancer cell line of lymph node carcinoma of the prostate. The induction apoptosis of the extract was analyzed by a flow cytometer. Thymol acetate (14.7%), trans-carveol (12.5%), thymol (11.8%), and δ-elemene (9.4%) were identified as the main compounds for the essential oil. The extract scavenged the free radical of 2,2-diphenyl-1-picrylhydrazyl with a half maximal inhibitory concentration (IC50) of 15.2 ± 1.4 μg/mL for the plant extract. In the MTT assay, the IC50 of the extract and essential oil were 25.2 ± 0.3 and 218.9 ± 10.7 μg/mL after 72 h. The highest apoptosis was 31.6% for the plant extract. The obtained results of the present study revealed that E. arvense can be introduced as a potent agent to prevent the growth of prostate tumors.
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Affiliation(s)
- Hongyong Gu
- Department of Urology, Yichun People’s Hospital , Yichun City , Jiangxi, 336000 , China
| | - Ting Yi
- Public Health Department, Yichun City Center for Disease Control and Prevention , Yichun City , Jiangxi, 336000 , China
| | - Pengxiu Lin
- Department of Urology, Yichun People’s Hospital , Yichun City , Jiangxi, 336000 , China
| | - Jin Hu
- Department of Urology, Yichun People’s Hospital , Yichun City , Jiangxi, 336000 , China
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Dormousoglou M, Efthimiou I, Antonopoulou M, Fetzer DL, Hamerski F, Corazza ML, Papadaki M, Santzouk S, Dailianis S, Vlastos D. Investigation of the Genotoxic, Antigenotoxic and Antioxidant Profile of Different Extracts from Equisetum arvense L. Antioxidants (Basel) 2022; 11:antiox11071393. [PMID: 35883882 PMCID: PMC9312020 DOI: 10.3390/antiox11071393] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 01/24/2023] Open
Abstract
The present study investigated the cyto-genotoxic and antigenotoxic effects of four different extracts of Equisetum arvense L. (common name: field horsetail) on human lymphocytes. Specifically, Soxhlet’s prepared extracts from E. arvense L., using different solvents (S1: methanol (MeOH)-, S2: ethanol (EtOH)-, S3: water-, and S4: ethanol/water (EtOH-W)-) were analyzed for (a) their total phenolic and flavonoid content (TPC and TFC, respectively), (b) their antioxidant activity (AA), via the DPPH, FRAP and ABTS assays, and (c) their cyto-genotoxic and/or protective efficiency against the mutagenic agent mitomycin C, via the Cytokinesis Block MicroNucleus assay. All extracts showed increased TPC, TFC, and AA values in almost all cases. S1, S3 and S4 demonstrated no cytotoxic potential, whereas S2 was cytotoxic only at the highest concentrations. Genotoxicity was not observed in the tested extracts. The highest antigenotoxic activity was observed for EtOH-W (S4) extract, which was found to be rich in flavonoids, flavonoid-O-glycosides, phytosterols, phenolic and fatty acids as well as in minerals and mainly in K, Ca, Mg, Si and P, as assessed by using various mass spectrometry techniques. Those findings confirm that E. arvense L. extracts could be valuable candidates for medicinal applications and pharmaceutical products, thus alleviating the effects of more conventional drugs.
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Affiliation(s)
- Margarita Dormousoglou
- Department of Environmental Engineering, University of Patras, Seferi 2, GR-30100 Agrinio, Greece; (M.D.); (I.E.); (M.A.); (M.P.)
| | - Ioanna Efthimiou
- Department of Environmental Engineering, University of Patras, Seferi 2, GR-30100 Agrinio, Greece; (M.D.); (I.E.); (M.A.); (M.P.)
- Hellenic Centre for Marine Research (HCMR), Institute of Marine Biology, Biotechnology and Aquaculture, Anavyssos, GR-19013 Athens, Greece
| | - Maria Antonopoulou
- Department of Environmental Engineering, University of Patras, Seferi 2, GR-30100 Agrinio, Greece; (M.D.); (I.E.); (M.A.); (M.P.)
| | - Damian L. Fetzer
- Department of Chemical Engineering, Federal University of Paraná, Curitiba 81531-990, Brazil; (D.L.F.); (F.H.); (M.L.C.)
| | - Fabiane Hamerski
- Department of Chemical Engineering, Federal University of Paraná, Curitiba 81531-990, Brazil; (D.L.F.); (F.H.); (M.L.C.)
| | - Marcos L. Corazza
- Department of Chemical Engineering, Federal University of Paraná, Curitiba 81531-990, Brazil; (D.L.F.); (F.H.); (M.L.C.)
| | - Maria Papadaki
- Department of Environmental Engineering, University of Patras, Seferi 2, GR-30100 Agrinio, Greece; (M.D.); (I.E.); (M.A.); (M.P.)
| | - Samir Santzouk
- Santzouk Samir and Co. General Partnership, PANAX, Chrissostomou Smirnis 14, GR-30100 Agios Konstantinos, Greece;
| | | | - Dimitris Vlastos
- Department of Biology, University of Patras, GR-26500 Patras, Greece;
- Correspondence: ; Tel.: +30-2610969239
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Phytochemistry and Pharmacology of the Genus Equisetum (Equisetaceae): A Narrative Review of the Species with Therapeutic Potential for Kidney Diseases. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6658434. [PMID: 33747109 PMCID: PMC7954623 DOI: 10.1155/2021/6658434] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/11/2021] [Accepted: 01/15/2021] [Indexed: 12/30/2022]
Abstract
The Equisetum genus, Equisetaceae family, is widely distributed worldwide and may be the oldest nonextinct genus on Earth. There are about 30 known species, which are very often used in traditional medicine with diverse applications. This review aimed to compile scientific reports about Equisetum species with relevant pharmacological properties and/or therapeutic potential for kidney diseases. Our bibliographic survey demonstrates that the most widespread traditional use of Equisetum is as a diuretic, followed by the treatment of genitourinary diseases (kidney diseases, urethritis, kidney stones, and others), inflammation, wound healing, rheumatic diseases, prostatitis, and hypertension. The most popular species from the Equisetum genus with medicinal use is E. arvense L., whose diuretic effect was confirmed in animal models and clinical trials. The species E. bogotense Kunth also demonstrated the beneficial effect of inducing diuresis in both experimental and clinical assays. Several other species have also been studied regarding their therapeutic potential, showing different biological actions. Regarding the chemical composition, it contains many active constituents, such as alkaloids, flavonoids, phenol, phytosterols, saponins, sterols, silicic acid, tannin, triterpenoids, and volatile oils. However, despite the widespread traditional use, many species need to be explored in detail for scientific validation of popular use. Indeed, the species of the Equisetum genus have great potential in the management of kidney disorders.
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Antioxidant and Antiproliferative Activity of The Ethanolic Extract of Equisetum Myriochaetum and Molecular Docking of Its Main Metabolites (Apigenin, Kaempferol, and Quercetin) on β-Tubulin. Molecules 2021; 26:molecules26020443. [PMID: 33466999 PMCID: PMC7831036 DOI: 10.3390/molecules26020443] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/10/2021] [Accepted: 01/11/2021] [Indexed: 12/19/2022] Open
Abstract
Equisetum myriochaetum is a semi-aquatic plant found on riverbanks that is commonly used in traditional medicine as a diuretic agent. Additionally, the genus Equisetum stands out for its content of the flavonoid kaempferol, a well-known antiproliferative agent. Therefore, in this study, E. myriochaetum ethanolic extract was tested in vitro against a cervical cancer cell line (SiHa). Additionally, the antioxidative activity was evaluated through a 2,2-diphenyl-1-picrilhidrazil (DPPH) assay. Finally, a molecular docking analysis of apigenin, kaempferol, and quercetin on the active site of β-tubulin was performed to investigate their potential mechanism of action. All fractions of E. myriochaetum ethanolic extract showed antioxidative activity. Fraction 14 displayed an antiproliferative capacity with a half maximal inhibitory concentration (IC50) value of 6.78 μg/mL against SiHa cells.
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