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Amtaghri S, Eddouks M. Pharmacological and phytochemical properties of the genus Buxus: A review. Fitoterapia 2024; 177:106081. [PMID: 38936673 DOI: 10.1016/j.fitote.2024.106081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/07/2024] [Accepted: 06/16/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND Buxus plants have been used in traditional medicine for a very long time. The Buxus genus has been used to cure a variety of illnesses. OBJECTIVE This review aimed to provide a literature review on the genus Buxus including its biological and phytochemical properties. MATERIALS AND METHODS The current study was conducted using several scientific databases. Correct plant names were verified from plantlist.org. The results of this search were interpreted, analyzed, and documented based on the obtained bibliographic information. RESULTS Within all the species of the family Buxaceae, 5 species of the genus Buxus are reported to be antibacterial, 3 species have been found to be antioxidant, 5 species are cytotoxic, 1 species is anti-inflammatory, 1 species is antidiabetic, and 4 species are antifungal. Alkaloids, terpenoids, tannins, flavonoids, peptides, and phenolic compounds are the main chemical components of this genus. The study of >11 Buxuss pecies has identified >201 compounds. Pharmacological research has demonstrated that crude extracts and some pure compounds obtained from Buxus have several pharmacological activities such as antibacterial, antioxidant, cytotoxic, anti-inflammatory, antidiabetic, and antifungal. Based on the study of the phytochemistry of Buxus species, it was concluded that all the studied plants have active compounds, among which 55 molecules showed interesting activities. CONCLUSIONS The numerous traditional uses of Buxus species have been supported by several studies. Before Buxus plants can be fully employed clinically, further research is necessary.
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Affiliation(s)
- Smail Amtaghri
- Team of Ethnopharmacology and Pharmacognosy, Faculty of Sciences and Techniques Errachidia, Moulay Ismail University of Meknes, BP 509, Boutalamine, Errachidia 52000, Morocco; Energy, materials and sustainable development (EMDD) Team- Higher School of Technology-SALE, Center for Water, Natural Resources Environment and Sustainable Development (CERNE2D), Mohammed V University in Rabat, Rabat, Morocco
| | - Mohamed Eddouks
- Team of Ethnopharmacology and Pharmacognosy, Faculty of Sciences and Techniques Errachidia, Moulay Ismail University of Meknes, BP 509, Boutalamine, Errachidia 52000, Morocco.
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Susanti I, Pratiwi R, Rosandi Y, Hasanah AN. Separation Methods of Phenolic Compounds from Plant Extract as Antioxidant Agents Candidate. PLANTS (BASEL, SWITZERLAND) 2024; 13:965. [PMID: 38611494 PMCID: PMC11013868 DOI: 10.3390/plants13070965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/18/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024]
Abstract
In recent years, discovering new drug candidates has become a top priority in research. Natural products have proven to be a promising source for such discoveries as many researchers have successfully isolated bioactive compounds with various activities that show potential as drug candidates. Among these compounds, phenolic compounds have been frequently isolated due to their many biological activities, including their role as antioxidants, making them candidates for treating diseases related to oxidative stress. The isolation method is essential, and researchers have sought to find effective procedures that maximize the purity and yield of bioactive compounds. This review aims to provide information on the isolation or separation methods for phenolic compounds with antioxidant activities using column chromatography, medium-pressure liquid chromatography, high-performance liquid chromatography, counter-current chromatography, hydrophilic interaction chromatography, supercritical fluid chromatography, molecularly imprinted technologies, and high-performance thin layer chromatography. For isolation or purification, the molecularly imprinted technologies represent a more accessible and more efficient procedure because they can be applied directly to the extract to reduce the complicated isolation process. However, it still requires further development and refinement.
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Affiliation(s)
- Ike Susanti
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Jl Raya Bandung Sumedang KM 21 r, Sumedang 45363, Indonesia
| | - Rimadani Pratiwi
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Jl Raya Bandung Sumedang KM 21 r, Sumedang 45363, Indonesia
| | - Yudi Rosandi
- Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jl. Raya Bandung Sumedang KM 21, Sumedang 45363, Indonesia
| | - Aliya Nur Hasanah
- Pharmaceutical Analysis and Medicinal Chemistry Department, Faculty of Pharmacy, Universitas Padjadjaran, Jl Raya Bandung Sumedang KM 21 r, Sumedang 45363, Indonesia
- Drug Development Study Center, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Bandung Sumedang KM 21, Sumedang 45363, Indonesia
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Szalak R, Matysek M, Koval M, Dziedzic M, Kowalczuk-Vasilev E, Kruk-Slomka M, Koch W, Arciszewski MB, Kukula-Koch W. Magnoflorine from Berberis vulgaris Roots-Impact on Hippocampal Neurons in Mice after Short-Term Exposure. Int J Mol Sci 2023; 24:ijms24087166. [PMID: 37108329 PMCID: PMC10138352 DOI: 10.3390/ijms24087166] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/06/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
In search of novel potential drug candidates that could be used as treatments or prophylactics for memory impairment, an aporphine alkaloid magnoflorine (MAG) isolated from the root of Berberis vulgaris was proven to exhibit beneficial anti-amnestic properties. Its effects on immunoreactivity to parvalbumin in the mouse hippocampus were assessed together with a study on its safety and concentration in the brain and plasma. For this purpose, four experimental groups were created: the MAG10 group-treated with 10 mg MAG/kg b.w. i.p., the MAG20 group-treated with 20 mg MAG/kg b.w. i.p., the MAG50 group-treated with 50 mg MAG/kg b.w. i.p., and a control group-injected with saline i.p. at a volume corresponding to their weight. Our results indicated that the hippocampal fields CA1-CA3 were characterized by an elevated number of parvalbumin-immunoreactive neurons (PV-IR) and nerve fibers in mice at the doses of 10 and 20 mg/kg b.w. (i.p.). No significant changes to the levels of IL-1β, IL-6 or TNF-α were observed for the above two doses; however, the administration of 50 mg/kg b.w. i.p. caused a statistically significant elevation of IL-6, IL-1beta plasma levels and an insignificant raise in the TNF-alpha value. The HPLC-MS analysis showed that the alkaloid's content in the brain structures in the group treated with 50 mg/kg b.w. did not increase proportionally with the administered dose. The obtained results show that MAG is able to influence the immunoreactivity to PV-IR in hippocampal neurons and might act as a neuroprotective compound.
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Affiliation(s)
- Radosław Szalak
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, 12 Akademicka St., 20-950 Lublin, Poland
| | - Małgorzata Matysek
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, 12 Akademicka St., 20-950 Lublin, Poland
| | - Maryna Koval
- Department of Pharmacognosy with the Medicinal Plants Garden, Medical University of Lublin, 1, Chodźki St., 20-093 Lublin, Poland
| | - Marcin Dziedzic
- Department of Laboratory Diagnostics, Medical University of Lublin, 1, Chodźki St., 20-093 Lublin, Poland
| | - Edyta Kowalczuk-Vasilev
- Institute of Animal Nutrition and Bromatology, Faculty of Animal Science and Bioeconomy, University of Life Sciences, 13 Akademicka St., 20-950 Lublin, Poland
| | - Marta Kruk-Slomka
- Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, 20-093 Lublin, Poland
| | - Wojciech Koch
- Department of Food and Nutrition, Medical University of Lublin, 4a Chodźki St., 20-093 Lublin, Poland
| | - Marcin B Arciszewski
- Department of Animal Anatomy and Histology, Faculty of Veterinary Medicine, University of Life Sciences, 12 Akademicka St., 20-950 Lublin, Poland
| | - Wirginia Kukula-Koch
- Department of Pharmacognosy with the Medicinal Plants Garden, Medical University of Lublin, 1, Chodźki St., 20-093 Lublin, Poland
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Szabó LU, Schmidt TJ. Investigation of the Variability of Alkaloids in Buxus sempervirens L. Using Multivariate Data Analysis of LC/MS Profiles. Molecules 2021; 27:molecules27010082. [PMID: 35011313 PMCID: PMC8746436 DOI: 10.3390/molecules27010082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/14/2021] [Accepted: 12/21/2021] [Indexed: 11/16/2022] Open
Abstract
Buxus sempervirens L. is a common ornamental plant in southern and central Europe, and has been used ethopharmacologically against a wide variety of diseases due to it containing nor-triterpene alkaloids of the nor-cycloartane type. Recently, we demonstrated the interesting antiprotozoal potential of some of these compounds. To characterize the temporal variability in the alkaloid profile of two different varieties and their leaves and twigs, 30 different extracts of B. sempervirens were evaluated by Ultra High Performance Liquid Chromatography/positive Mode-Electrospray Ionization Quadrupole Time-of-Flight-Tandem Mass Spectrometry (UHPLC/+ESI-QqTOF-MS/MS). The analytical profiles were thoroughly investigated by various methods of multivariate data analysis (MVDA). A principal component analysis (PCA) model elucidates the seasonal variation in the phytochemical composition of B. sempervirens var. arborescens and suffruticosa along with differences between the varieties. Analysis of a volcano plot illustrated the differences between the two organs, the leaf and twig. Eighteen compounds were highlighted by the models as constituents of the plant characteristic for a season, variety or organ. These compounds were dereplicated based on their chromatographic and +ESI-QqTOF-MS and –MS/MS data. In addition, mass spectral fragmentation pathways for already known alkaloids as well as new natural products could be postulated for the first time. In conclusion, the MVDA models give detailed information on the temporal variability in the alkaloid profile of two different varieties and their organs (leaf vs. twig) of B. sempervirens. Thus, the results of this study allow, e.g., the identification of characteristic compounds for the different varieties, plant organs, seasons, and the optimal harvesting time for the isolation of particular Buxus-alkaloids of interest for subsequent studies.
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Szabó LU, Kaiser M, Mäser P, Schmidt TJ. Identification of Antiprotozoal Compounds from Buxus sempervirens L. by PLS-Prediction. Molecules 2021; 26:molecules26206181. [PMID: 34684761 PMCID: PMC8537364 DOI: 10.3390/molecules26206181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/01/2021] [Accepted: 10/08/2021] [Indexed: 11/25/2022] Open
Abstract
Various nor-triterpene alkaloids of Buxus (B.) sempervirens L. have shown remarkable in vitro activity against the causative agents of tropical malaria and East African sleeping sickness. To identify further antiprotozoal compounds of this plant, 20 different fractions of B. sempervirens L., exhibiting a wide range of in vitro bioactivity, were analyzed by UHPLC/+ESI-QqTOF-MS/MS. The analytical profiles were investigated by partial least squares regression (PLS) for correlations between the intensity of LC/MS signals, bioactivity and cytotoxicity. The resulting models highlighted several compounds as mainly responsible for the antiprotozoal activity and thus, worthwhile for subsequent isolation. These compounds were dereplicated based on their mass spectra in comparison with isolated compounds recently reported by us and with literature data. Moreover, an estimation of the cytotoxicity of the highlighted compounds was derived from an additional PLS model in order to identify plant constituents with strong selectivity. In conclusion, high levels of antitrypanosomal and antiplasmodial activity were predicted for eight and four compounds, respectively. These include three hitherto unknown constituents of B. sempervirens L., presumably new natural products.
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Affiliation(s)
- Lara U. Szabó
- Institute of Pharmaceutical Biology and Phytochemistry (IPBP), PharmaCampus, University of Münster, Corrensstraße 48, D-48149 Münster, Germany;
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute (Swiss TPH), Socinstrasse 57, CH-4051 Basel, Switzerland; (M.K.); (P.M.)
- University of Basel, Petersplatz 1, CH-4003 Basel, Switzerland
| | - Pascal Mäser
- Swiss Tropical and Public Health Institute (Swiss TPH), Socinstrasse 57, CH-4051 Basel, Switzerland; (M.K.); (P.M.)
- University of Basel, Petersplatz 1, CH-4003 Basel, Switzerland
| | - Thomas J. Schmidt
- Institute of Pharmaceutical Biology and Phytochemistry (IPBP), PharmaCampus, University of Münster, Corrensstraße 48, D-48149 Münster, Germany;
- Correspondence: ; Tel.: +49-251-83-33378
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Szabó LU, Kaiser M, Mäser P, Schmidt TJ. Antiprotozoal Nor-Triterpene Alkaloids from Buxus sempervirens L. Antibiotics (Basel) 2021; 10:696. [PMID: 34200688 PMCID: PMC8228141 DOI: 10.3390/antibiotics10060696] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 11/18/2022] Open
Abstract
Malaria and human African trypanosomiasis (HAT; sleeping sickness) are life-threatening tropical diseases caused by protozoan parasites. Due to limited therapeutic options, there is a compelling need for new antiprotozoal agents. In a previous study, O-tigloylcyclovirobuxeine-B was recovered from a B. sempervirens L. (common box; Buxaceae) leaf extract by bioactivity-guided isolation. This nor-cycloartane alkaloid was identified as possessing strong and selective in vitro activity against the causative agent of malaria tropica, Plasmodium falciparum (Pf). The purpose of this study is the isolation of additional alkaloids from B. sempervirens L. to search for further related compounds with strong antiprotozoal activity. In conclusion, 25 alkaloids were obtained from B. sempervirens L., including eight new natural products and one compound first described for this plant. The structure elucidation was accomplished by UHPLC/+ESI-QqTOF-MS/MS and NMR spectroscopy. The isolated alkaloids were tested against Pf and Trypanosoma brucei rhodesiense (Tbr), the causative agent of East African sleeping sickness. To assess their selectivity, cytotoxicity against mammalian cells (L6 cell line) was tested as well. Several of the compounds displayed promising in vitro activity against the pathogens in a sub-micromolar range with concurrent high selectivity indices (SI). Consequently, various alkaloids from B. sempervirens L. have the potential to serve as a novel antiprotozoal lead structure.
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Affiliation(s)
- Lara U. Szabó
- Institute of Pharmaceutical Biology and Phytochemistry (IPBP), University of Münster, PharmaCampus Corrensstraße 48, D-48149 Münster, Germany;
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute (Swiss TPH), Socinstrasse 57, CH-4051 Basel, Switzerland; (M.K.); (P.M.)
- University of Basel, Petersplatz 1, CH-4003 Basel, Switzerland
| | - Pascal Mäser
- Swiss Tropical and Public Health Institute (Swiss TPH), Socinstrasse 57, CH-4051 Basel, Switzerland; (M.K.); (P.M.)
- University of Basel, Petersplatz 1, CH-4003 Basel, Switzerland
| | - Thomas J. Schmidt
- Institute of Pharmaceutical Biology and Phytochemistry (IPBP), University of Münster, PharmaCampus Corrensstraße 48, D-48149 Münster, Germany;
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Flittner D, Kaiser M, Mäser P, Lopes NP, Schmidt TJ. The Alkaloid-Enriched Fraction of Pachysandra terminalis (Buxaceae) Shows Prominent Activity against Trypanosoma brucei rhodesiense. Molecules 2021; 26:molecules26030591. [PMID: 33498621 PMCID: PMC7865568 DOI: 10.3390/molecules26030591] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 02/06/2023] Open
Abstract
In the course of our studies on antiprotozoal natural products and following our recent discovery that certain aminosteroids and aminocycloartanoid compounds from Holarrhena africana A. DC. (Apocynaceae) and Buxus sempervirens L. (Buxaceae), respectively, are strong and selective antitrypanosomal agents, we have extended these studies to another plant, related to the latter-namely, Pachysandra terminalis Sieb. and Zucc. (Buxaceae). This species is known to contain aminosteroids similar to those of Holarrhena and structurally related to the aminocycloartanoids of Buxus. The dicholoromethane extract obtained from aerial parts of P. terminalis and, in particular, its alkaloid fraction obtained by acid-base partitioning showed prominent activity against Trypanosoma brucei rhodesiense (Tbr). Activity-guided fractionation along with extended UHPLC-(+)ESI QTOF MS analyses coupled with partial least squares (PLS) regression modelling relating the analytical profiles of various fractions with their bioactivity against Tbr highlighted eighteen constituents likely responsible for the antitrypanosomal activity. Detailed analysis of their (+)ESI mass spectral fragmentation allowed identification of four known constituents of P. terminalis as well as structural characterization of ten further amino-/amidosteroids not previously reported from this plant.
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Affiliation(s)
- Dagmar Flittner
- Institute of Pharmaceutical Biology and Phytochemistry (IPBP), University of Münster, PharmaCampus, Corrensstr. 48, D-48149 Münster, Germany;
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute (Swiss TPH), Socinstrasse 57, CH-4051 Basel, Switzerland; (M.K.); (P.M.)
- University of Basel, Petersplatz 1, CH-4003 Basel, Switzerland
| | - Pascal Mäser
- Swiss Tropical and Public Health Institute (Swiss TPH), Socinstrasse 57, CH-4051 Basel, Switzerland; (M.K.); (P.M.)
- University of Basel, Petersplatz 1, CH-4003 Basel, Switzerland
| | - Norberto P. Lopes
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Department of Biomolecular Sciences from School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. Do Café s/n CEP, 14040-903 Ribeirão Preto-SP, Brazil;
| | - Thomas J. Schmidt
- Institute of Pharmaceutical Biology and Phytochemistry (IPBP), University of Münster, PharmaCampus, Corrensstr. 48, D-48149 Münster, Germany;
- Correspondence: ; Tel.: +49-251-83-33378
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