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Healy Knibb SM, Yeremy B, Williams DE, Andersen RJ, Golsteyn RM. An anti-mitotic compound, (+)-6-tuliposide A, isolated from the Canadian glacier lily, Erythronium grandiflorum. Fitoterapia 2024; 177:106075. [PMID: 38897244 DOI: 10.1016/j.fitote.2024.106075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 06/11/2024] [Accepted: 06/16/2024] [Indexed: 06/21/2024]
Abstract
The Canadian prairie ecosystem is subjected to abiotic and biotic conditions that induce plants to produce secondary metabolites that affect mammalian physiology. Extracts prepared from certain plant species native to Canadian prairie and montane cordillera ecosystems have previously been shown to have anti-mitotic activity on human cancer cell lines. In this study, we investigated the glacier lily, Erythronium grandiflorum (Liliaceae), in which the species was the most phylogenetically distant from Asteraceae and had anti-mitotic activity. When added to cell lines, E. grandiflorum extracts induced rounded cell morphology and arrested cells in the G2/M phase of the cell cycle. Of the cells that displayed a rounded phenotype, all were positive for phospho-histone H3 and contained a distorted mitotic spindle. This anti-mitotic activity was distinct from that of the compound colchicine, which has been previously isolated from the Liliaceae family. By biology-guided fractionation, we isolated the natural product (+)-6-tuliposide A and are the first to report its anti-mitotic activity. These results reveal a chemical motif in secondary metabolites and expand the range of Canadian prairie plants with anti-mitotic activity that can become new scientific tools or used in the development of anti-proliferative medicines.
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Affiliation(s)
- Shannon M Healy Knibb
- Natural Product Laboratory, University of Lethbridge, 4401 University Drive W, Lethbridge, AB T1K 3M4, Canada
| | - Benjamin Yeremy
- Departments of Chemistry and EOAS, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z6, Canada
| | - David E Williams
- Departments of Chemistry and EOAS, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z6, Canada
| | - Raymond J Andersen
- Departments of Chemistry and EOAS, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z6, Canada
| | - Roy M Golsteyn
- Natural Product Laboratory, University of Lethbridge, 4401 University Drive W, Lethbridge, AB T1K 3M4, Canada.
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2
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Crum AH, Philander L, Busta L, Yang Y. Traditional medicinal use is linked with apparency, not specialized metabolite profiles in the order Caryophyllales. AMERICAN JOURNAL OF BOTANY 2024; 111:e16308. [PMID: 38581167 DOI: 10.1002/ajb2.16308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 04/08/2024]
Abstract
PREMISE Better understanding of the relationship between plant specialized metabolism and traditional medicine has the potential to aid in bioprospecting and untangling of cross-cultural use patterns. However, given the limited information available for metabolites in most plant species, understanding medicinal use-metabolite relationships can be difficult. The order Caryophyllales has a unique pattern of lineages of tyrosine- or phenylalanine-dominated specialized metabolism, represented by mutually exclusive anthocyanin and betalain pigments, making Caryophyllales a compelling system to explore the relationship between medicine and metabolites by using pigment as a proxy for dominant metabolism. METHODS We compiled a list of medicinal species in select tyrosine- or phenylalanine-dominant families of Caryophyllales (Nepenthaceae, Polygonaceae, Simmondsiaceae, Microteaceae, Caryophyllaceae, Amaranthaceae, Limeaceae, Molluginaceae, Portulacaceae, Cactaceae, and Nyctaginaceae) by searching scientific literature until no new uses were recovered. We then tested for phylogenetic clustering of uses using a "hot nodes" approach. To test potential non-metabolite drivers of medicinal use, like how often humans encounter a species (apparency), we repeated the analysis using only North American species across the entire order and performed phylogenetic generalized least squares regression (PGLS) with occurrence data from the Global Biodiversity Information Facility (GBIF). RESULTS We hypothesized families with tyrosine-enriched metabolism would show clustering of different types of medicinal use compared to phenylalanine-enriched metabolism. Instead, wide-ranging, apparent clades in Polygonaceae and Amaranthaceae are overrepresented across nearly all types of medicinal use. CONCLUSIONS Our results suggest that apparency is a better predictor of medicinal use than metabolism, although metabolism type may still be a contributing factor.
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Affiliation(s)
- Alex H Crum
- Department of Plant and Microbial Biology, University of Minnesota, 1445 Gortner Avenue, St. Paul, 55108, MN, USA
| | - Lisa Philander
- Como Park Zoo and Conservatory, 1225 Estabrook Drive, St. Paul, 55103, MN, USA
| | - Lucas Busta
- University of Minnesota Duluth, 1038 University Drive, Duluth, 55812, MN, USA
| | - Ya Yang
- Department of Plant and Microbial Biology, University of Minnesota, 1445 Gortner Avenue, St. Paul, 55108, MN, USA
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Dutra LL, Borges RJ, Maltarollo VG, Mendes TAO, Bressan GC, Leite JPV. In silico evaluation of pharmacokinetics properties of withanolides and simulation of their biological activities against Alzheimer's disease. J Biomol Struct Dyn 2024; 42:2616-2631. [PMID: 37166375 DOI: 10.1080/07391102.2023.2206909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 04/19/2023] [Indexed: 05/12/2023]
Abstract
The withanolides are naturally occurring steroidal lactones found mainly in plants of the Solanaceae family. The subtribe Withaninae includes species like Withania sominifera, which are a source of many bioactive withanolides. In this work, we selected and evaluate the ADMET-related properties of 91 withanolides found in species of the subtribe Withaninae computationally, to predict the relationship between their structures and their pharmacokinetic profiles. We also evaluated the interaction of these withanolides with known targets of Alzheimer's disease (AD) through molecular docking and molecular dynamics. Withanolides presented favorable pharmacokinetic properties, like high gastrointestinal absorption, lipophilicity (logP ≤ 5), good distribution and excretion parameters, and a favorable toxicity profile. The specie Withania aristata stood out as an interesting source of the promising withanolides classified as 5-ene with 16-ene or 17-ene. These withanolides presented a favourable pharmacokinetic profile and were also highlighted as the best candidates for inhibition of AD-related targets. Our results also suggest that withanolides are likely to act as cholinesterase inhibitors by interacting with the catalytic pocket in an energy favorable and stable way.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Luana L Dutra
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Minas Gerais, Brazil
| | - Rafael J Borges
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Minas Gerais, Brazil
| | - Vinícius G Maltarollo
- Pharmaceutical Products Department- Faculty of Pharmacy, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Tiago A O Mendes
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Minas Gerais, Brazil
| | - Gustavo C Bressan
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Minas Gerais, Brazil
| | - João Paulo V Leite
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Minas Gerais, Brazil
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4
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Zhou J, Wang X, Zhou S, Niu J, Yue J, Liu Z, Downie SR. Circumscription of the East Asia clade (Apiaceae subfamily Apioideae) and the taxonomic placements of several problematic genera. PLANT DIVERSITY 2024; 46:206-218. [PMID: 38807902 PMCID: PMC11128858 DOI: 10.1016/j.pld.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 05/30/2024]
Abstract
The East Asia (or Physospermopsis) clade was recognized in previous molecular phylogenetic investigations into the higher-level relationships of Apiaceae subfamily Apioideae. The composition of this clade, the phylogenetic relationships among its constituent taxa, and the placement of species previously determined to be problematic have yet to be resolved. Herein, nrDNA ITS sequences were obtained for 150 accessions of Apioideae, representing species whose distributions are in East Asia or genera having one or more species included within the East Asia clade. These data, along with published ITS sequences from other Apioideae (for 3678 accessions altogether), were subjected to maximum likelihood and Bayesian inference analyses. The results show that the East Asia clade contains representatives of 11 currently recognized genera: Hansenia, Hymenolaena, Keraymonia, Sinolimprichtia, Acronema, Hymenidium, Physospermopsis, Pimpinella, Sinocarum, Tongoloa, and Trachydium. However, the latter seven genera have members falling outside of the East Asia clade, including the generic types of all except Tongoloa. Within the clade, the species comprising these seven genera are widely intermingled, greatly increasing confusion among relationships than previously realized. The problematic species Physospermopsis cuneata is confirmed as falling within the East Asia clade, whereas P. rubrinervis allies with the generic type in tribe Pleurospermeae. Physospermopsis kingdon-wardii is confirmed as a member of the genus Physospermopsis, whereas the generic attributions of P. cuneata and Tongoloa stewardii remain unclear. Two species of Sinocarum (S. filicinum and S. wolffianum) are transferred into the genus Meeboldia. This is the most comprehensive molecular phylogenetic investigation of the East Asia clade to date, and while the results increase systematic understanding of the clade, they also highlight the need for further studies of one of the most taxonomically intractable groups in Apioideae.
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Affiliation(s)
- Jing Zhou
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong New City, Kunming 650500, China
- College of Modern Biomedical Industry, Kunming Medical University, Kunming 650500, China
| | - Xinyue Wang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong New City, Kunming 650500, China
| | - Shilin Zhou
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong New City, Kunming 650500, China
| | - Junmei Niu
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong New City, Kunming 650500, China
| | - Jiarui Yue
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, 1168 Western Chunrong Road, Yuhua Street, Chenggong New City, Kunming 650500, China
| | - Zhenwen Liu
- Yunnan Academy of Forestry and Grassland, Kunming 650201, China
- Gaoligong Mountain, Forest Ecosystem, Observation and Research Station of Yunnan Province, Kunming 650201, China
- Yunnan Key Laboratory of Biodiversity of Gaoligong Mountain, Kunming 650201, China
| | - Stephen R. Downie
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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5
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Davis CC, Choisy P. Medicinal plants meet modern biodiversity science. Curr Biol 2024; 34:R158-R173. [PMID: 38412829 DOI: 10.1016/j.cub.2023.12.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Plants have been an essential source of human medicine for millennia. In this review, we argue that a holistic, interdisciplinary approach to the study of medicinal plants that combines methods and insights from three key disciplines - evolutionary ecology, molecular biology/biochemistry, and ethnopharmacology - is poised to facilitate new breakthroughs in science, including pharmacological discoveries and rapid advancements in human health and well-being. Such interdisciplinary research leverages data and methods spanning space, time, and species associated with medicinal plant species evolution, ecology, genomics, and metabolomic trait diversity, all of which build heavily on traditional Indigenous knowledge. Such an interdisciplinary approach contrasts sharply with most well-funded and successful medicinal plant research during the last half-century, which, despite notable advancements, has greatly oversimplified the dynamic relationships between plants and humans, kept hidden the larger human narratives about these relationships, and overlooked potentially important research and discoveries into life-saving medicines. We suggest that medicinal plants and people should be viewed as partners whose relationship involves a complicated and poorly explored set of (socio-)ecological interactions including not only domestication but also commensalisms and mutualisms. In short, medicinal plant species are not just chemical factories for extraction and exploitation. Rather, they may be symbiotic partners that have shaped modern societies, improved human health, and extended human lifespans.
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Affiliation(s)
- Charles C Davis
- Department of Organismic and Evolutionary Biology, Harvard University Herbaria, 22 Divinity Avenue, Cambridge, MA 02138, USA.
| | - Patrick Choisy
- LVMH Research, 185 Avenue de Verdun, 45804 Saint Jean de Braye CEDEX, France
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Hou D, Lin H, Feng Y, Zhou K, Li X, Yang Y, Wang S, Yang X, Wang J, Zhao H, Zhang X, Fan J, Lu S, Wang D, Zhu L, Ju D, Chen YZ, Zeng X. CMAUP database update 2024: extended functional and association information of useful plants for biomedical research. Nucleic Acids Res 2024; 52:D1508-D1518. [PMID: 37897343 PMCID: PMC10767869 DOI: 10.1093/nar/gkad921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/23/2023] [Accepted: 10/10/2023] [Indexed: 10/30/2023] Open
Abstract
Knowledge of the collective activities of individual plants together with the derived clinical effects and targeted disease associations is useful for plant-based biomedical research. To provide the information in complement to the established databases, we introduced a major update of CMAUP database, previously featured in NAR. This update includes (i) human transcriptomic changes overlapping with 1152 targets of 5765 individual plants, covering 74 diseases from 20 027 patient samples; (ii) clinical information for 185 individual plants in 691 clinical trials; (iii) drug development information for 4694 drug-producing plants with metabolites developed into approved or clinical trial drugs; (iv) plant and human disease associations (428 737 associations by target, 220 935 reversion of transcriptomic changes, 764 and 154121 associations by clinical trials of individual plants and plant ingredients); (v) the location of individual plants in the phylogenetic tree for navigating taxonomic neighbors, (vi) DNA barcodes of 3949 plants, (vii) predicted human oral bioavailability of plant ingredients by the established SwissADME and HobPre algorithm, (viii) 21-107% increase of CMAUP data over the previous version to cover 60 222 chemical ingredients, 7865 plants, 758 targets, 1399 diseases, 238 KEGG human pathways, 3013 gene ontologies and 1203 disease ontologies. CMAUP update version is freely accessible at https://bidd.group/CMAUP/index.html.
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Affiliation(s)
- Dongyue Hou
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Hanbo Lin
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Yuhan Feng
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Kaicheng Zhou
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Xingxiu Li
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Yuan Yang
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Shuaiqi Wang
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Xue Yang
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Jiayu Wang
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Hui Zhao
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Xuyao Zhang
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Jiajun Fan
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - SongLin Lu
- The State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Dan Wang
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, China
| | - Lyuhan Zhu
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, China
| | - Dianwen Ju
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
| | - Yu Zong Chen
- The State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, China
- Shenzhen Bay Laboratory, Shenzhen 518000, China
| | - Xian Zeng
- Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutics, Fudan University School of Pharmacy, Shanghai 201203, China
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Pedrosa KM, Ramos MB, La Torre-Cuadros MDLÁ, Lopes SDF. Plant parentage influences the type of timber use by traditional peoples of the Brazilian Caatinga. PLoS One 2023; 18:e0286434. [PMID: 37847702 PMCID: PMC10581497 DOI: 10.1371/journal.pone.0286434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/15/2023] [Indexed: 10/19/2023] Open
Abstract
Local populations select different plants to meet their demands, so that morphologically similar species can be more used for a given use. Herein, we seek to understand whether plant species that are phylogenetically closer together are used more similarly than distant species in the phylogeny. Ethnobotanical data were collected in five rural communities in a semi-arid region of Brazil. A total of 120 local experts were selected and interviewed using semi-structured questionnaires. The people's knowledge of plants was organized into usage subcategories. We estimated the redundancy values for the mentioned species, and we compiled data from the literature on the wood density values of the cited species. We constructed our phylogenetic hypothesis of useful plants and used comparative phylogenetic methods to estimate the signal. Our results showed a strong phylogenetic grouping for both tool handle and craft uses. We observed a moderate phylogenetic grouping in which related cited plants exhibit similar redundancy and a weak grouping in which cited plants present similar wood density values. Our results revealed the importance of using phylogeny for useful plants. We conclude the phylogenetic proximity of useful plants and the lower redundancy for some species in our study may suggest greater use pressure, given that few species fulfill the same function.
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Affiliation(s)
- Kamila Marques Pedrosa
- Laboratório de Ecologia Neotropical, Departamento de Biologia, Centro de Ciências Biológicas e da Saúde, Universidade Estadual da Paraíba, Bairro Universitário, Campina Grande, Paraíba, Brasil
| | - Maiara Bezerra Ramos
- Laboratório de Ecologia Neotropical, Departamento de Biologia, Centro de Ciências Biológicas e da Saúde, Universidade Estadual da Paraíba, Bairro Universitário, Campina Grande, Paraíba, Brasil
| | | | - Sérgio de Faria Lopes
- Laboratório de Ecologia Neotropical, Departamento de Biologia, Centro de Ciências Biológicas e da Saúde, Universidade Estadual da Paraíba, Bairro Universitário, Campina Grande, Paraíba, Brasil
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8
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Domingo-Fernández D, Gadiya Y, Mubeen S, Bollerman TJ, Healy MD, Chanana S, Sadovsky RG, Healey D, Colluru V. Modern drug discovery using ethnobotany: A large-scale cross-cultural analysis of traditional medicine reveals common therapeutic uses. iScience 2023; 26:107729. [PMID: 37701812 PMCID: PMC10494464 DOI: 10.1016/j.isci.2023.107729] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/08/2023] [Accepted: 08/22/2023] [Indexed: 09/14/2023] Open
Abstract
For millennia, numerous cultures and civilizations have relied on traditional remedies derived from plants to treat a wide range of conditions and ailments. Here, we systematically analyzed ethnobotanical patterns across taxonomically related plants, demonstrating that congeneric medicinal plants are more likely to be used for treating similar indications. Next, we reconstructed the phytochemical space covered by medicinal plants to reveal that (i) taxonomically related medicinal plants cover a similar phytochemical space, and (ii) chemical similarity correlates with similar therapeutic usage. Lastly, we present several case scenarios illustrating how mining this information can be used for drug discovery applications, including: (i) investigating taxonomic hotspots around particular indications, (ii) exploring shared patterns of congeneric plants located in different geographic areas, but which have been used to treat the same indications, and (iii) showing the concordance between ethnobotanical patterns among non-taxonomically related plants and the presence of shared bioactive phytochemicals.
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Gomes LCA, de Medeiros PM, Prata APDN. Wild food plants of Brazil: a theoretical approach to non-random selection. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2023; 19:28. [PMID: 37422690 DOI: 10.1186/s13002-023-00603-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/06/2023] [Indexed: 07/10/2023]
Abstract
Ethnobiological investigations have focused on identifying factors that interfere with the criteria adopted for selection of plants, especially medicinal plants, by different populations, confirming the theory that plant selection is not random. However, regarding wild food plants, little effort has been made to confirm the theory in this context, especially in Brazil. Therefore, this systematic review aimed to contribute to the establishment of theoretical bases of the non-random selection of wild food plants by local populations in Brazil. For this, searches were made in 4 databases, namely, Web of Science, Scielo, Scopus and PubMed, using 8 sets of keywords in English and Portuguese in order to identify wild food plants occurring in Brazil. The steps were: application of inclusion and exclusion criteria, screening of articles, selection of studies based on risk of bias, data treatment and, finally, data analysis. Eighty articles met the inclusion criteria of this review. However, 45 of them were considered to present high risk of bias and thus 35 articles were kept for the identification of overused and underused families. The results were inferred through two different approaches (IDM and Bayesian). Annonaceae, Arecaceae, Basellaceae, Cactaceae, Capparaceae, Caryocaraceae, Myrtaceae, Passifloraceae, Rhamnaceae, Rosaceae, Sapotaceae, Talinaceae, and Typhaceae were considered overused. Eriocaulaceae, Orchidaceae, and Poaceae were considered underused. Therefore, considering that some families are more (or less) used than others, we confirm that the wild food plants occurring in Brazil, known and used by different populations, are not chosen at random.
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Tyler SE, Tyler LD. Pathways to healing: Plants with therapeutic potential for neurodegenerative diseases. IBRO Neurosci Rep 2023; 14:210-234. [PMID: 36880056 PMCID: PMC9984566 DOI: 10.1016/j.ibneur.2023.01.006] [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: 09/24/2022] [Accepted: 01/25/2023] [Indexed: 02/12/2023] Open
Abstract
Some of the greatest challenges in medicine are the neurodegenerative diseases (NDs), which remain without a cure and mostly progress to death. A companion study employed a toolkit methodology to document 2001 plant species with ethnomedicinal uses for alleviating pathologies relevant to NDs, focusing on its relevance to Alzheimer's disease (AD). This study aimed to find plants with therapeutic bioactivities for a range of NDs. 1339 of the 2001 plant species were found to have a bioactivity from the literature of therapeutic relevance to NDs such as Parkinson's disease, Huntington's disease, AD, motor neurone diseases, multiple sclerosis, prion diseases, Neimann-Pick disease, glaucoma, Friedreich's ataxia and Batten disease. 43 types of bioactivities were found, such as reducing protein misfolding, neuroinflammation, oxidative stress and cell death, and promoting neurogenesis, mitochondrial biogenesis, autophagy, longevity, and anti-microbial activity. Ethno-led plant selection was more effective than random selection of plant species. Our findings indicate that ethnomedicinal plants provide a large resource of ND therapeutic potential. The extensive range of bioactivities validate the usefulness of the toolkit methodology in the mining of this data. We found that a number of the documented plants are able to modulate molecular mechanisms underlying various key ND pathologies, revealing a promising and even profound capacity to halt and reverse the processes of neurodegeneration.
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Key Words
- A-H, Alpers-Huttenlocher syndrome
- AD, Alzheimer’s disease
- ALS, Amyotrophic lateral sclerosis
- BBB, blood-brain barrier
- C. elegans,, Caenorhabditis elegans
- CJD, Creutzfeldt-Jakob disease
- CMT, Charcot–Marie–Tooth disease
- CS, Cockayne syndrome
- Ech A, Echinochrome A
- FDA, Food and Drug Administration
- FRDA, Friedreich’s ataxia
- FTD, Frontotemporal dementia
- HD, Huntington’s disease
- Hsp, Heat shock protein
- LSD, Lysosomal storage diseases
- MS, Multiple sclerosis
- MSA, Multiple system atrophy
- MSP, Multisystem proteinopathy
- Medicinal plant
- ND, neurodegenerative disease
- NPC, Neimann-Pick disease type C
- NSC, neural stem cells
- Neuro-inflammation
- Neurodegeneration
- Neurogenesis
- PC, pharmacological chaperone
- PD, Parkinson’s disease
- Protein misfolding
- SMA, Spinal muscular atrophy
- VD, Vascular dementia
- prion dis, prion diseases
- α-syn, alpha-synuclein
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Affiliation(s)
- Sheena E.B. Tyler
- John Ray Research Field Station, Cheshire, United Kingdom
- Corresponding author.
| | - Luke D.K. Tyler
- School of Natural Sciences, Bangor University, Gwynedd, United Kingdom
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11
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Yao R, Heinrich M, Zhang B, Wei X, Qi Y, Gao W. Single botanical drugs in the Ayurvedic Pharmacopoeia of India-A quantitative ethnobotanical analysis. Front Pharmacol 2023; 14:1136446. [PMID: 37251315 PMCID: PMC10213908 DOI: 10.3389/fphar.2023.1136446] [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: 01/03/2023] [Accepted: 05/04/2023] [Indexed: 05/31/2023] Open
Abstract
Developing evidence-based uses of herbal medicines and natural product-based drug discovery are two core aims of ethnopharmacology. This requires an understanding of the medicinal plants and the traditional medical knowledge associated with them which is a basis for cross-cultural comparison. The botanical drugs of traditional medical systems are still not understood well, even for well-known and widely respected traditions like Ayurveda. In this study, a quantitative ethnobotanical analysis was performed on the single botanical drugs included in the Ayurvedic Pharmacopoeia of India (API), presenting an overview on the medicinal plants of Ayurveda from perspectives of plant systematics and medical ethnobotany. Part-I of API includes 621 single botanical drugs, which are sourced from 393 species (323 genera in 115 families). Of these, 96 species yield two or more drugs, together accounting for 238 drugs. Taking the traditional concepts, biomedical uses and the pragmatic disease classification into account, therapeutic uses of these botanical drugs are sorted into 20 categories, which meet primary health demands. The therapeutic uses of the drugs sourced from the same species may differ considerably, but 30 of the 238 drugs are used in highly similar way. The comparative phylogenetic analysis identifies 172 species with high potential for specific therapeutic uses. This medical ethnobotanical assessment for the first time provides a comprehensive understanding on the single botanical drugs in API from the perspective of medical botany using an "etic" (scientist-oriented) approach. This study also highlights the importance of quantitative ethnobotanic methods in understanding traditional medical knowledge.
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Affiliation(s)
- Ruyu Yao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Michael Heinrich
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, University of London, London, United Kingdom
| | - Bengang Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xueping Wei
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yaodong Qi
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Weiwei Gao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Medicinal plants used by rural Thai people to treat non-communicable diseases and related symptoms. Heliyon 2023; 9:e12758. [PMID: 36685400 PMCID: PMC9850000 DOI: 10.1016/j.heliyon.2022.e12758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 12/21/2022] [Accepted: 12/29/2022] [Indexed: 01/06/2023] Open
Abstract
Non-communicable diseases (NCDs) are becoming more common in remote regions, whereas previously they were more common in middle-class to wealthy societies. The rising prevalence and severity of NCDs has increased the demand for medical innovation in this space. In this regard, knowledge of traditional medicines used in the treatment of NCDs, by people in the remote communities of Thailand, represents an innovation opportunity. This study aims to use data on ethnomedicinal plants used by local Thai people to identify plant candidates for study of safety and efficacy against a range of specified NCDs. Data were taken from both the literature and interviews from 230 locations in Thailand. The consulted literature was published in the years from 1990 to 2020. Ethnomedicinal field observations were made in person, in villages in Nan and Chiang Rai provinces, in 2021. Data includes names of plants used to target NCDs, and names of target diseases. Important plant species were identified based on the number of use reports and use values together with results from Bayesian approach. A total of 766 plant species were recorded in the treatment of NCDs. Most of the species that were described by informants were used to target diabetes, hypertension, chronic respiratory and renal diseases. This study proposes several plant species that have potential as treatments against NCDs. Many of these important species have insufficient scientific data to support their uses. The study suggests that assessment of efficacy and safety should be the next logical steps.
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Hussain A. A phylogenetic perspective of antiviral species of the genus Artemisia (Asteraceae-Anthemideae): A proposal of anti SARS-CoV-2 (COVID-19) candidate taxa. J Herb Med 2022; 36:100601. [PMID: 36188629 PMCID: PMC9514968 DOI: 10.1016/j.hermed.2022.100601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/22/2022] [Accepted: 09/21/2022] [Indexed: 01/11/2023]
Abstract
Introduction Different classes of disease-causing viruses are widely distributed universally. Plant-based medicines are anticipated to be effective cures for viral diseases including the COVID-19, instigated by severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2). This study displays the phylogenetic perspective of Artemisia and proposes some candidate taxa against different viral diseases, including SARS-CoV-2. Methods Data of Artemisia with antiviral activity were obtained from different published sources and electronic searches. A phylogenetic analysis of the nrDNA ITS sequences of reported antiviral Artemisia species, along with the reference species retrieved from the NCBI GenBank database, was performed using the maximum likelihood (ML) approach. Results In total, 23 Artemisia species have been documented so far with antiviral activity for 17 different types of viral diseases. 17 out of 23 antiviral Artemisia species were included in the ITS phylogeny, which presented the distribution of these antiviral Artemisia species in clades corresponding to different subgenera of the genus Artemisia. In the resultant ML tree, 10 antiviral Artemisia species appeared within the subgenus Artemisia clade, 2 species appeared within the subgenus Absinthium clade, 3 species appeared within the subgenus Dracunculus clade, and 2 species appeared within the subgenus Seriphidium clade. Discussion Artemisia species from different subgenera with antiviral activity are prevalent in the genus, with most antiviral species belonging to the subgenus Artemisia. A detailed analysis of taxa from all subgenera, particularly the subgenus Artemisia, is therefore proposed in order to discover compounds with potential anti-SARS-CoV-2 activity.
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Key Words
- Antiviral activity
- Artemisia
- Asteraceae
- BVD, Bovine viral diarrhea virus
- COVID-19
- Candidate taxa
- DEN 2, Dengue virus type 2
- FCV, Feline calci virus
- FIV, Feline immunodeficiency virus
- HBV, Hepatitis B virus
- HBeAg, Hepatitis B e-antigen
- HBsAg, Hepatitis B surface antigen
- HCV, Hepatitis C virus
- HHV (HSV), Human alphaherpesvirus (Herpes simplex virus)
- HHV-4 (EBV), Human gammaherpesvirus type 4 (Epstein-Barr virus)
- HIV-, Human immunodeficiency virus
- HeLa, Henrietta Lacks cells
- ITS Phylogeny
- IV, Influenza virus
- JUN V, Junin virus
- MDBK, Madin-Darby bovine kidney cells
- MDCK, Madin-Darby canine kidney cells
- MNV, Murine norovirus
- MTTA, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide assay
- NDV, Newcastle disease virus
- PV, Polio virus
- SARS CoV2, Severe acute respiratory syndrome corona virus 2
- SARS-CoV-2
- SV, Sindbis virus
- VERO, Verda reno cells
- YFV, Yellow fever virus
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In vitro anti-HIV and cytotoxic effects of pure compounds isolated from Croton macrostachyus Hochst. Ex Delile. BMC Complement Med Ther 2022; 22:159. [PMID: 35705943 PMCID: PMC9202147 DOI: 10.1186/s12906-022-03638-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 06/02/2022] [Indexed: 11/18/2022] Open
Abstract
Croton macrostachyus is an important plant in traditional African medicine, widely utilized to treat a variety of diseases. In Kenya, HIV-infected patients use leaf and root decoctions of the plant as a cure for cough, back pain, bleeding, skin diseases, warts, pneumonia, and wounds. This study aimed to evaluate the anti-HIV activities and cytotoxic effects of extracts and chemical constituents isolated from C. macrostachyus. In our previous study we demonstrated that the hexane, CH2Cl2, ethyl acetate and methanol soluble fractions of a 1:1 v/v/ CH2Cl2/MeOH crude extracts of the leaves and stem bark of C. macrostachyus exhibited potent anti-HIV activities against HIV-1 with IC50 values ranging from 0.02–8.1 μg/mL and cytotoxicity effects against MT-4 cells ranging from IC50 = 0.58–174 μg/mL. Hence, hexane soluble extract of 1:1 v/v/ CH2Cl2/MeOH crude extract of the leaves of C. macrostachyus, that was more potent against HIV-1 at IC50 = 0.02 μg/mL was subjected to column chromatography leading to the isolation of 2-methoxy benzyl benzoate (1), lupenone (2), lupeol acetate (3), betulin (4), lupeol (5), sitosterol (6) and stigmasterol (7). Lupenone (2), lupeol acetate (3) and betulin (4) exhibited anti-HIV-1 inhibition at IC50 = 4.7 nM, 4.3 and 4.5 μg/mL respectively. The results obtained from this study support the potential of C. macrostachyus, as a source of anti-HIV constituents.
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The likely extinction of hundreds of palm species threatens their contributions to people and ecosystems. Nat Ecol Evol 2022; 6:1710-1722. [PMID: 36163257 DOI: 10.1038/s41559-022-01858-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 07/24/2022] [Indexed: 02/07/2023]
Abstract
Protecting nature's contributions to people requires accelerating extinction risk assessment and better integrating evolutionary, functional and used diversity with conservation planning. Here, we report machine learning extinction risk predictions for 1,381 palm species (Arecaceae), a plant family of high socio-economic and ecological importance. We integrate these predictions with published assessments for 508 species (covering 75% of all palm species) and we identify top-priority regions for palm conservation on the basis of their proportion of threatened evolutionarily distinct, functionally distinct and used species. Finally, we explore palm use resilience to identify non-threatened species that could potentially serve as substitutes for threatened used species by providing similar products. We estimate that over a thousand palms (56%) are probably threatened, including 185 species with documented uses. Some regions (New Guinea, Vanuatu and Vietnam) emerge as top ten priorities for conservation only after incorporating machine learning extinction risk predictions. Potential substitutes are identified for 91% of the threatened used species and regional use resilience increases with total palm richness. However, 16 threatened used species lack potential substitutes and 30 regions lack substitutes for at least one of their threatened used palm species. Overall, we show that hundreds of species of this keystone family face extinction, some of them probably irreplaceable, at least locally. This highlights the need for urgent actions to avoid major repercussions on palm-associated ecosystem processes and human livelihoods in the coming decades.
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Gras A, Parada M, Pellicer J, Vallès J, Garnatje T. Cancer and Traditional Plant Knowledge, an Interesting Field to Explore: Data from the Catalan Linguistic Area. Molecules 2022; 27:molecules27134070. [PMID: 35807319 PMCID: PMC9268183 DOI: 10.3390/molecules27134070] [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: 05/13/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 12/10/2022] Open
Abstract
Cancer is the second cause of death in the world and is foreseen to be responsible for about 16 million deaths in 2040. Approximately, 60% of the drugs used to treat cancer are of natural origin. Besides the extensive use of some of these drugs in therapies, such as those derived from the genus Taxus, a significant number of plants have revealed themselves as useful against cancer in recent years. The field of ethnobotany focuses on documenting traditional knowledge associated with plants, constituting a starting point to uncover the potential of new plant-based drugs to treat or prevent, in this case, tumour diseases and side effects of chemotherapy and radiotherapy. From a series of extensive ethnobotanical prospections across the Catalan linguistic area (CLA), we have recorded uses for 41 taxa with antitumour effects. The two most quoted botanical families are Asteraceae and Ranunculaceae, and the most frequently reported species is Ranunculus parnassifolius, a high-mountain species, which is widely collected for this purpose. The reported species have been used to treat an important number of cancer types, focusing on preventive, palliative, and curative uses, as well as to deal with the side effects of conventional treatments. Comparing our results in CLA with previous data available in the most comprehensive databases of pharmacology and a review of cytotoxicity assays revealed that for the several species reported here, there was no previous evidence of traditional uses against cancer. Despite the need for further analyses to experimentally validate the information presented here, combining traditional uses and phylogenetically-informed strategies to phytochemical and pharmacological research would represent new avenues to establish more integrative approaches, hence improving the ability to select new candidate taxa in cancer research.
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Affiliation(s)
- Airy Gras
- Laboratori de Botànica—Unitat Associada CSIC, Facultat de Farmàcia i Ciències de l’Alimentació—Institut de Recerca de la Biodiversitat IRBio, Universitat de Barcelona (UB), 08028 Barcelona, Catalonia, Spain; (M.P.); (J.V.)
- Center for the Study of Human Health, Emory University, Atlanta, GA 30033-5305, USA
- Correspondence:
| | - Montse Parada
- Laboratori de Botànica—Unitat Associada CSIC, Facultat de Farmàcia i Ciències de l’Alimentació—Institut de Recerca de la Biodiversitat IRBio, Universitat de Barcelona (UB), 08028 Barcelona, Catalonia, Spain; (M.P.); (J.V.)
| | - Jaume Pellicer
- Institut Botànic de Barcelona (IBB), CSIC-Ajuntament de Barcelona, 08038 Barcelona, Catalonia, Spain; (J.P.); (T.G.)
- Royal Botanic Gardens, Kew, Richmond TW9 3AE, UK
| | - Joan Vallès
- Laboratori de Botànica—Unitat Associada CSIC, Facultat de Farmàcia i Ciències de l’Alimentació—Institut de Recerca de la Biodiversitat IRBio, Universitat de Barcelona (UB), 08028 Barcelona, Catalonia, Spain; (M.P.); (J.V.)
- Secció de Ciències Biològiques, Institut d’Estudis Catalans, 08001 Barcelona, Catalonia, Spain
| | - Teresa Garnatje
- Institut Botànic de Barcelona (IBB), CSIC-Ajuntament de Barcelona, 08038 Barcelona, Catalonia, Spain; (J.P.); (T.G.)
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Pirintsos S, Panagiotopoulos A, Bariotakis M, Daskalakis V, Lionis C, Sourvinos G, Karakasiliotis I, Kampa M, Castanas E. From Traditional Ethnopharmacology to Modern Natural Drug Discovery: A Methodology Discussion and Specific Examples. Molecules 2022; 27:4060. [PMID: 35807306 PMCID: PMC9268545 DOI: 10.3390/molecules27134060] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/19/2022] [Accepted: 06/22/2022] [Indexed: 12/04/2022] Open
Abstract
Ethnopharmacology, through the description of the beneficial effects of plants, has provided an early framework for the therapeutic use of natural compounds. Natural products, either in their native form or after crude extraction of their active ingredients, have long been used by different populations and explored as invaluable sources for drug design. The transition from traditional ethnopharmacology to drug discovery has followed a straightforward path, assisted by the evolution of isolation and characterization methods, the increase in computational power, and the development of specific chemoinformatic methods. The deriving extensive exploitation of the natural product chemical space has led to the discovery of novel compounds with pharmaceutical properties, although this was not followed by an analogous increase in novel drugs. In this work, we discuss the evolution of ideas and methods, from traditional ethnopharmacology to in silico drug discovery, applied to natural products. We point out that, in the past, the starting point was the plant itself, identified by sustained ethnopharmacological research, with the active compound deriving after extensive analysis and testing. In contrast, in recent years, the active substance has been pinpointed by computational methods (in silico docking and molecular dynamics, network pharmacology), followed by the identification of the plant(s) containing the active ingredient, identified by existing or putative ethnopharmacological information. We further stress the potential pitfalls of recent in silico methods and discuss the absolute need for in vitro and in vivo validation as an absolute requirement. Finally, we present our contribution to natural products' drug discovery by discussing specific examples, applying the whole continuum of this rapidly evolving field. In detail, we report the isolation of novel antiviral compounds, based on natural products active against influenza and SARS-CoV-2 and novel substances active on a specific GPCR, OXER1.
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Affiliation(s)
- Stergios Pirintsos
- Department of Biology, School of Sciences and Technology, University of Crete, 71409 Heraklion, Greece;
- Botanical Garden, University of Crete, 74100 Rethymnon, Greece
- Nature Crete Pharmaceuticals, 71305 Heraklion, Greece; (C.L.); (G.S.); (M.K.)
| | - Athanasios Panagiotopoulos
- Laboratory of Experimental Endocrinology, School of Medicine, University of Crete, 71409 Heraklion, Greece;
| | - Michalis Bariotakis
- Department of Biology, School of Sciences and Technology, University of Crete, 71409 Heraklion, Greece;
| | - Vangelis Daskalakis
- Department of Chemical Engineering, Cyprus University of Technology, Limassol 3603, Cyprus;
| | - Christos Lionis
- Nature Crete Pharmaceuticals, 71305 Heraklion, Greece; (C.L.); (G.S.); (M.K.)
- Clinic of Social and Family Medicine, School of Medicine, University of Crete, 71409 Heraklion, Greece
| | - George Sourvinos
- Nature Crete Pharmaceuticals, 71305 Heraklion, Greece; (C.L.); (G.S.); (M.K.)
- Laboratory of Clinical Virology, School of Medicine, University of Crete, 71409 Heraklion, Greece
| | - Ioannis Karakasiliotis
- Laboratory of Biology, School of Medicine, Democritus University of Thrace, 68100 Alexandroupolis, Greece;
| | - Marilena Kampa
- Nature Crete Pharmaceuticals, 71305 Heraklion, Greece; (C.L.); (G.S.); (M.K.)
- Laboratory of Experimental Endocrinology, School of Medicine, University of Crete, 71409 Heraklion, Greece;
| | - Elias Castanas
- Nature Crete Pharmaceuticals, 71305 Heraklion, Greece; (C.L.); (G.S.); (M.K.)
- Laboratory of Experimental Endocrinology, School of Medicine, University of Crete, 71409 Heraklion, Greece;
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Luo L, Yang J, Wang C, Wu J, Li Y, Zhang X, Li H, Zhang H, Zhou Y, Lu A, Chen S. Natural products for infectious microbes and diseases: an overview of sources, compounds, and chemical diversities. SCIENCE CHINA. LIFE SCIENCES 2022; 65:1123-1145. [PMID: 34705221 PMCID: PMC8548270 DOI: 10.1007/s11427-020-1959-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/27/2021] [Indexed: 12/13/2022]
Abstract
As coronavirus disease 2019 (COVID-19) threatens human health globally, infectious disorders have become one of the most challenging problem for the medical community. Natural products (NP) have been a prolific source of antimicrobial agents with widely divergent structures and a range vast biological activities. A dataset comprising 618 articles, including 646 NP-based compounds from 672 species of natural sources with biological activities against 21 infectious pathogens from five categories, was assembled through manual selection of published articles. These data were used to identify 268 NP-based compounds classified into ten groups, which were used for network pharmacology analysis to capture the most promising lead-compounds such as agelasine D, dicumarol, dihydroartemisinin and pyridomycin. The distribution of maximum Tanimoto scores indicated that compounds which inhibited parasites exhibited low diversity, whereas the chemistries inhibiting bacteria, fungi, and viruses showed more structural diversity. A total of 331 species of medicinal plants with compounds exhibiting antimicrobial activities were selected to classify the family sources. The family Asteraceae possesses various compounds against C. neoformans, the family Anacardiaceae has compounds against Salmonella typhi, the family Cucurbitacea against the human immunodeficiency virus (HIV), and the family Ancistrocladaceae against Plasmodium. This review summarizes currently available data on NP-based antimicrobials against refractory infections to provide information for further discovery of drugs and synthetic strategies for anti-infectious agents.
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Affiliation(s)
- Lu Luo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jun Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Cheng Wang
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100006, China
| | - Jie Wu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yafang Li
- Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Xu Zhang
- weMED Health, Houston, 77054, USA
| | - Hui Li
- Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Hui Zhang
- Akupunktur Akademiet, Aabyhoej, Aarhus, 8230, Denmark
| | - Yumei Zhou
- The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, 518033, China
| | - Aiping Lu
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, 999077, China
| | - Shilin Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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Houël E, Ginouves M, Azas N, Bourreau E, Eparvier V, Hutter S, Knittel-Obrecht A, Jahn-Oyac A, Prévot G, Villa P, Vonthron-Sénécheau C, Odonne G. Treating leishmaniasis in Amazonia, part 2: Multi-target evaluation of widely used plants to understand medicinal practices. JOURNAL OF ETHNOPHARMACOLOGY 2022; 289:115054. [PMID: 35131338 DOI: 10.1016/j.jep.2022.115054] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/18/2022] [Accepted: 01/26/2022] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leishmaniasis are widely distributed among tropical and subtropical countries, and remains a crucial health issue in Amazonia. Indigenous groups across Amazonia have developed abundant knowledge about medicinal plants related to this pathology. AIM OF THE STUDY We intent to explore the weight of different pharmacological activities driving taxa selection for medicinal use in Amazonian communities. Our hypothesis is that specific activity against Leishmania parasites is only one factor along other (anti-inflammatory, wound healing, immunomodulating, antimicrobial) activities. MATERIALS AND METHODS The twelve most widespread plant species used against leishmaniasis in Amazonia, according to their cultural and biogeographical importance determined through a wide bibliographical survey (475 use reports), were selected for this study. Plant extracts were prepared to mimic their traditional preparations. Antiparasitic activity was evaluated against promastigotes of reference and clinical New-World strains of Leishmania (L. guyanensis, L. braziliensis and L. amazonensis) and L. amazonensis intracellular amastigotes. We concurrently assessed the extracts immunomodulatory properties on PHA-stimulated human PBMCs and RAW264.7 cells, and on L. guyanensis antigens-stimulated PBMCs obtained from Leishmania-infected patients, as well as antifungal activity and wound healing properties (human keratinocyte migration assay) of the selected extracts. The cytotoxicity of the extracts against various cell lines (HFF1, THP-1, HepG2, PBMCs, RAW264.7 and HaCaT cells) was also considered. The biological activity pattern of the extracts was represented through PCA analysis, and a correlation matrix was calculated. RESULTS Spondias mombin L. bark and Anacardium occidentale L. stem and leaves extracts displayed high anti-promatigotes activity, with IC50 ≤ 32 μg/mL against L. guyanensis promastigotes for S. mombin and IC50 of 67 and 47 μg/mL against L. braziliensis and L. guyanensis promastigotes, respectively, for A. occidentale. In addition to the antiparasitic effect, antifungal activity measured against C. albicans and T. rubrum (MIC in the 16-64 μg/mL range) was observed. However, in the case of Leishmania amastigotes, the most active species were Bixa orellana L. (seeds), Chelonantus alatus (Aubl.) Pulle (leaves), Jacaranda copaia (Aubl.) D. Don. (leaves) and Plantago major L. (leaves) with IC50 < 20 μg/mL and infection rates of 14-25% compared to the control. Concerning immunomodulatory activity, P. major and B. orellana were highlighted as the most potent species for the wider range of cytokines in all tested conditions despite overall contrasting results depending on the model. Most of the species led to moderate to low cytotoxic extracts except for C. alatus, which exhibited strong cytotoxic activity in almost all models. None of the tested extracts displayed wound healing properties. CONCLUSIONS We highlighted pharmacologically active extracts either on the parasite or on associated pathophysiological aspects, thus supporting the hypothesis that antiparasitic activities are not the only biological factor useful for antileishmanial evaluation. This result should however be supplemented by in vivo studies, and attracts once again the attention on the importance of the choice of biological models for an ethnophamacologically consistent study. Moreover, plant cultural importance, ecological status and availability were discussed in relation with biological results, thus contributing to link ethnobotany, medical anthropology and biology.
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Affiliation(s)
- Emeline Houël
- CNRS, UMR EcoFoG, AgroParisTech, Cirad, INRAE, Université des Antilles, Université de Guyane, 97300, Cayenne, France.
| | - Marine Ginouves
- TBIP, Université de Guyane, 97300, Cayenne, French Guiana; Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR9017-CIIL Center for Infection and Immunity of Lille, 59000, Lille, France
| | - Nadine Azas
- Aix Marseille Univ, IHU Méditerranée Infection, UMR VITROME, Tropical Eukaryotic Pathogens, 19-21 Boulevard Jean Moulin, 13005, Marseille, France
| | - Eliane Bourreau
- Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP6010, 97306, Cayenne Cedex, French Guiana
| | - Véronique Eparvier
- CNRS - Institut de Chimie des Substances Naturelles, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Sébastien Hutter
- Aix Marseille Univ, IHU Méditerranée Infection, UMR VITROME, Tropical Eukaryotic Pathogens, 19-21 Boulevard Jean Moulin, 13005, Marseille, France
| | - Adeline Knittel-Obrecht
- Plate-forme de Chimie Biologique Intégrative de Strasbourg UAR 3286 CNRS-Université de Strasbourg, Institut du Médicament de Strasbourg, ESBS Pôle API, Bld Sébastien Brant, 67412, Illkirch Cedex, France
| | - Arnaud Jahn-Oyac
- CNRS, UMR EcoFoG, AgroParisTech, Cirad, INRAE, Université des Antilles, Université de Guyane, 97300, Cayenne, France
| | - Ghislaine Prévot
- TBIP, Université de Guyane, 97300, Cayenne, French Guiana; Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR9017-CIIL Center for Infection and Immunity of Lille, 59000, Lille, France
| | - Pascal Villa
- Plate-forme de Chimie Biologique Intégrative de Strasbourg UAR 3286 CNRS-Université de Strasbourg, Institut du Médicament de Strasbourg, ESBS Pôle API, Bld Sébastien Brant, 67412, Illkirch Cedex, France
| | - Catherine Vonthron-Sénécheau
- Laboratoire d'Innovation Thérapeutique UMR 7200 CNRS - Université de Strasbourg, Institut du Médicament de Strasbourg, Faculté de Pharmacie, 74 route du Rhin, 67401, Illkirch cedex, France
| | - Guillaume Odonne
- Laboratoire Ecologie, évolution, interactions des systèmes amazoniens (LEEISA), CNRS, Université de Guyane, IFREMER, 97300, Cayenne, French Guiana
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Lardos A, Aghaebrahimian A, Koroleva A, Sidorova J, Wolfram E, Anisimova M, Gil M. Computational Literature-based Discovery for Natural Products Research: Current State and Future Prospects. FRONTIERS IN BIOINFORMATICS 2022; 2:827207. [PMID: 36304281 PMCID: PMC9580913 DOI: 10.3389/fbinf.2022.827207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/28/2022] [Indexed: 11/21/2022] Open
Abstract
Literature-based discovery (LBD) mines existing literature in order to generate new hypotheses by finding links between previously disconnected pieces of knowledge. Although automated LBD systems are becoming widespread and indispensable in a wide variety of knowledge domains, little has been done to introduce LBD to the field of natural products research. Despite growing knowledge in the natural product domain, most of the accumulated information is found in detached data pools. LBD can facilitate better contextualization and exploitation of this wealth of data, for example by formulating new hypotheses for natural product research, especially in the context of drug discovery and development. Moreover, automated LBD systems promise to accelerate the currently tedious and expensive process of lead identification, optimization, and development. Focusing on natural product research, we briefly reflect the development of automated LBD and summarize its methods and principal data sources. In a thorough review of published use cases of LBD in the biomedical domain, we highlight the immense potential of this data mining approach for natural product research, especially in context with drug discovery or repurposing, mode of action, as well as drug or substance interactions. Most of the 91 natural product-related discoveries in our sample of reported use cases of LBD were addressed at a computer science audience. Therefore, it is the wider goal of this review to introduce automated LBD to researchers who work with natural products and to facilitate the dialogue between this community and the developers of automated LBD systems.
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Affiliation(s)
- Andreas Lardos
- Natural Product Chemistry and Phytopharmacy Research Group, Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
| | - Ahmad Aghaebrahimian
- Institute of Applied Simulation, School of Life Sciences and Facility Management, Zürich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Anna Koroleva
- Institute of Applied Simulation, School of Life Sciences and Facility Management, Zürich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Julia Sidorova
- Instituto de Tecnología del Conocimiento, Universidad Complutense de Madrid, Madrid, Spain
| | - Evelyn Wolfram
- Natural Product Chemistry and Phytopharmacy Research Group, Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
| | - Maria Anisimova
- Institute of Applied Simulation, School of Life Sciences and Facility Management, Zürich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Manuel Gil
- Institute of Applied Simulation, School of Life Sciences and Facility Management, Zürich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
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21
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Distribution of Therapeutic Efficacy of Ranunculales Plants Used by Ethnic Minorities on the Phylogenetic Tree of Chinese Species. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:9027727. [PMID: 35069772 PMCID: PMC8769838 DOI: 10.1155/2022/9027727] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/03/2021] [Accepted: 12/09/2021] [Indexed: 12/19/2022]
Abstract
The medicinal properties of plants can be evolutionarily predicted by phylogeny-based methods, which, however, have not been used to explore the regularity of therapeutic effects of Chinese plants utilized by ethnic minorities. This study aims at exploring the distribution law of therapeutic efficacy of Ranunculales plants on the phylogenetic tree of Chinese species. We collected therapeutic efficacy data of 551 ethnomedicinal species belonging to five species-rich families of Ranunculales; these therapeutic data were divided into 15 categories according to the impacted tissues and organs. The phylogenetic tree of angiosperm species was used to analyze the phylogenetic signals of ethnomedicinal plants by calculating the net relatedness index (NRI) and nearest taxon index (NTI) in R language. The NRI results revealed a clustered structure for eight medicinal categories (poisoning/intoxication, circulatory, gastrointestinal, eyesight, oral, pediatric, skin, and urinary disorders) and overdispersion for the remaining seven (neurological, general, hepatobiliary, musculoskeletal, otolaryngologic, reproductive, and respiratory disorders), while the NTI metric identified the clustered structure for all. Statistically, NRI and NTI values were significant in 5 and 11 categories, respectively. It was found that Mahonia eurybracteata has therapeutic effects on all categories. iTOL was used to visualize the distribution of treatment efficacy on species phylogenetic trees. By figuring out the distribution of therapeutic effects of Ranunculales medicinal plants, the importance of phylogenetic methods in finding potential medicinal resources is highlighted; NRI, NTI, and similar indices can be calculated to help find taxonomic groups with medicinal efficacy based on the phylogenetic tree of flora in different geographic regions.
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Reinaldo RCPDS, Santoro FR, Albuquerque UP, de Medeiros PM. Taste and chemical composition as drives for utilitarian redundancy and equivalence: a case study in local medical systems in Northeastern Brazil. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2022; 18:4. [PMID: 35078497 PMCID: PMC8787910 DOI: 10.1186/s13002-022-00503-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND We aimed to verify whether the taste and chemical composition influence the selection of plants in each medicinal category, whether within a socio-ecological system or between different socio-ecological systems. To this end, we use the theoretical bases of the Utilitarian Redundancy Model and the Utilitarian Equivalence Model. We studied the local medical systems of four rural communities in northeastern Brazil, used as models to test our assumptions. METHODS The data on medicinal plants and local therapeutic function were obtained from semi-structured interviews associated with the free-listing method, allowing to generate indexes of similarity of therapeutic use between the plants cited in each region. During the interviews, each informer was also asked to report the tastes of the plants cited. Subsequently, we classified each plant in each region according to the most cited taste. The data about the chemical composition of each plant were obtained from a systematic review, using Web of Knowledge and Scopus databases. RESULTS Pairs of plants with similar tastes are 1.46 times more likely to have the same therapeutic function within a local medical system (redundancy), but not between medical systems (equivalence). We also find that chemical compounds are not primarily responsible for utilitarian redundancy and equivalence. However, there was a tendency for alkaloids to be doubly present with greater expressiveness in pairs of equivalent plants. CONCLUSIONS The results indicate that each social group can create its means of using the organoleptic characteristics as clues to select new species as medicinal. Furthermore, this study corroborates the main prediction of the Utilitarian Equivalence Model, that people in different environments choose plants with traits in common for the same functions.
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Affiliation(s)
- Rafael Corrêa Prota Dos Santos Reinaldo
- Laboratório de Ecologia e Evolução de Sistemas Socioecológicos, Departamento de Botânica, Centro de Biociências, Universidade Federal de Pernambuco, Cidade Universitária, Recife, PE, 50670-901, Brazil.
- Programa de Pós-Graduação em Botânica, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
| | - Flávia Rosa Santoro
- Laboratório de Ecologia e Evolução de Sistemas Socioecológicos, Departamento de Botânica, Centro de Biociências, Universidade Federal de Pernambuco, Cidade Universitária, Recife, PE, 50670-901, Brazil
- Instituto Multidisciplinario de Biologia Vegetal (IMBIV), CONICET - Universidad Nacional de Córdoba, Avenida Vélez Sársfield 299, Córdoba, Argentina
| | - Ulysses Paulino Albuquerque
- Laboratório de Ecologia e Evolução de Sistemas Socioecológicos, Departamento de Botânica, Centro de Biociências, Universidade Federal de Pernambuco, Cidade Universitária, Recife, PE, 50670-901, Brazil
- Programa de Pós-Graduação em Botânica, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil
| | - Patrícia Muniz de Medeiros
- Programa de Pós-Graduação em Botânica, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil.
- Centro de Ciências Agrárias, Universidade Federal de Alagoas, Rio Largo, Alagoas, Brazil.
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23
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Wainwright CL, Teixeira MM, Adelson DL, Buenz EJ, David B, Glaser KB, Harata-Lee Y, Howes MJR, Izzo AA, Maffia P, Mayer AM, Mazars C, Newman DJ, Nic Lughadha E, Pimenta AM, Parra JA, Qu Z, Shen H, Spedding M, Wolfender JL. Future Directions for the Discovery of Natural Product-Derived Immunomodulating Drugs. Pharmacol Res 2022; 177:106076. [PMID: 35074524 DOI: 10.1016/j.phrs.2022.106076] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 01/07/2022] [Indexed: 02/06/2023]
Abstract
Drug discovery from natural sources is going through a renaissance, having spent many decades in the shadow of synthetic molecule drug discovery, despite the fact that natural product-derived compounds occupy a much greater chemical space than those created through synthetic chemistry methods. With this new era comes new possibilities, not least the novel targets that have emerged in recent times and the development of state-of-the-art technologies that can be applied to drug discovery from natural sources. Although progress has been made with some immunomodulating drugs, there remains a pressing need for new agents that can be used to treat the wide variety of conditions that arise from disruption, or over-activation, of the immune system; natural products may therefore be key in filling this gap. Recognising that, at present, there is no authoritative article that details the current state-of-the-art of the immunomodulatory activity of natural products, this in-depth review has arisen from a joint effort between the International Union of Basic and Clinical Pharmacology (IUPHAR) Natural Products and Immunopharmacology, with contributions from a Powered by Editorial Manager® and ProduXion Manager® from Aries Systems Corporation number of world-leading researchers in the field of natural product drug discovery, to provide a "position statement" on what natural products has to offer in the search for new immunomodulatory argents. To this end, we provide a historical look at previous discoveries of naturally occurring immunomodulators, present a picture of the current status of the field and provide insight into the future opportunities and challenges for the discovery of new drugs to treat immune-related diseases.
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Affiliation(s)
- Cherry L Wainwright
- Centre for Natural Products in Health, Robert Gordon University, Aberdeen, UK.
| | - Mauro M Teixeira
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Brazil.
| | - David L Adelson
- Molecular & Biomedical Science, University of Adelaide, Australia.
| | - Eric J Buenz
- Nelson Marlborough Institute of Technology, New Zealand.
| | - Bruno David
- Green Mission Pierre Fabre, Pierre Fabre Laboratories, Toulouse, France.
| | - Keith B Glaser
- AbbVie Inc., Integrated Discovery Operations, North Chicago, USA.
| | - Yuka Harata-Lee
- Molecular & Biomedical Science, University of Adelaide, Australia
| | - Melanie-Jayne R Howes
- Royal Botanic Gardens Kew, Richmond, Surrey, UK; Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, UK.
| | - Angelo A Izzo
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Italy.
| | - Pasquale Maffia
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Italy; Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK.
| | - Alejandro Ms Mayer
- Department of Pharmacology, College of Graduate Studies, Midwestern University, IL, USA.
| | - Claire Mazars
- Green Mission Pierre Fabre, Pierre Fabre Laboratories, Toulouse, France.
| | | | | | - Adriano Mc Pimenta
- Laboratory of Animal Venoms and Toxins, Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| | - John Aa Parra
- Laboratory of Animal Venoms and Toxins, Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Zhipeng Qu
- Molecular & Biomedical Science, University of Adelaide, Australia
| | - Hanyuan Shen
- Molecular & Biomedical Science, University of Adelaide, Australia
| | | | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Switzerland.
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Conserving evolutionarily distinct species is critical to safeguard human well-being. Sci Rep 2021; 11:24187. [PMID: 34921205 PMCID: PMC8683420 DOI: 10.1038/s41598-021-03616-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 12/07/2021] [Indexed: 11/12/2022] Open
Abstract
Although there is growing interest in safeguarding the Tree of Life to preserve the human benefits that are directly provided by biodiversity, their evolutionary distribution remains unknown, which has hampered our understanding of the potential of phylodiversity indicators to evince them. Here, I drew on a global review of plant benefits and comprehensive phylogenetic information to breakdown their evolutionary distribution and thereby show why the commonly used Phylogenetic Diversity and Evolutionary Distinctiveness indicators can unequivocally help to preserve these natural services. Beneficial species clumped within phylogenetically overdispersed genera and closely related species often contributed very few and redundant benefits, suggesting that multiple plant lineages are required to maintain a wide variety of services. Yet, a reduced number of species stood out as multi-beneficial and evolutionarily distinct plants relative to both the entire phylogeny and the subset of beneficial species, and they collectively contributed a higher-than-expected number of records for most types of benefits. In addition to providing a clear mechanistic understanding for the recently proved success of Phylogenetic Diversity in capturing plant benefits, these findings stress the decisive role that conservation programmes aimed at protecting evolutionarily distinct taxa will play in safeguarding the beneficial potential of biodiversity for the future.
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25
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Zaman W, Ye J, Saqib S, Liu Y, Shan Z, Hao D, Chen Z, Xiao P. Predicting potential medicinal plants with phylogenetic topology: Inspiration from the research of traditional Chinese medicine. JOURNAL OF ETHNOPHARMACOLOGY 2021; 281:114515. [PMID: 34388416 DOI: 10.1016/j.jep.2021.114515] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 07/06/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Plants are a dominant source of pharmacological drugs for the treatment and cure of different disorders and diseases. However, selecting the most biologically active plant species for further screening is still challenging. Phylogeny has strong explanatory powers and provides predictive perspectives that are not available in traditional plant classifications. China, which is endowed with a diverse set of therapeutic cures from Mother Nature, represents an ideal environment for the phylogenetic analysis of potential medicinal plants. MATERIALS AND METHODS Herein, we prepared a database of 7,451 traditional Chinese medicinal (TCM) plants, including species with therapeutic effects grouped in 14 categories. To limit our exploration of novel therapeutic species, we plotted the medicinal effects on the phylogenetic tree of almost 30,000 species of China to find hot nodes of therapeutic effects. We used the net relatedness index (NRI) and the nearest taxon index (NTI) to identify clustering and overdispersion of the phylogenetic distribution of TCM plants. RESULTS The NRI and NTI analyses highlighted 3,392 hot node species with single therapeutic effects within 507 genera and 89 families on the phylogenetic tree and about 70% of the 14 medicinal categories clusters identified. The general pattern of the hot nodes on the phylogenetic tree indicates that basal angiosperms and basal eudicots radiated for therapeutic effects. CONCLUSIONS Our study may provide a more targeted way to discover phylogeny-guided drugs in the early screening stage, which may lead to a higher discovery efficiency of new drugs with meaningful biological activities. Phylogenetic studies of plants that are richer in bioactive compounds can set the ground for the identification and discovery of alternative drugs.
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Affiliation(s)
- Wajid Zaman
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Jianfei Ye
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
| | - Saddam Saqib
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yun Liu
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Zhangjian Shan
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Dacheng Hao
- School of Environment and Chemical Engineering, Dalian Jiaotong University, Dalian, 116028, China.
| | - Zhiduan Chen
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China; Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China.
| | - Peigen Xiao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing, 100193, China.
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Ethnobotanical Study of Underutilized Wild Edible Fruits and their Antibacterial Activity against Human Pathogens. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.4.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Nine underutilized wild edible fruits collected from four districts of Tripura, a North-Eastern state of India were studied for the antibacterial properties against five (5) human pathogens, Escherichia coli (Gram–Ve, ATCC-2522), Pseudomonas aeruginosa (Gram–Ve, ATCC-27853), Salmonella typhi (Gram –Ve, ATCC-14028), Staphylococcus aureus (Gram +Ve, ATCC-25923) and Klebsiella pneumonia (Gram–Ve, ATCC-700603) by disk diffusion method. Besides, the folk medicinal values and their ethnobotanical importance are also reported. Out of the nine (9) wild edible fruits, C. macroptera and S. dulcis showed the least antibacterial effect against all the bacterial pathogens under the present study. On the other hand, G. gummi-gutta and A. lacucha showed considerable antibacterial effects against all of the bacterial pathogens with the highest zone of inhibition against E. coli, followed by P. aeruginosa. Selective inhibitory effect of some of the wild edible fruits was also observed against the targeted pathogens. This study paves the way for using the underutilized wild fruits of the North-Eastern region of India as a potential source of antipathogenic activity of human pathogens. Further, a detailed study may help in identifying the bioactive compound of industrial importance.
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27
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Milliken W, Walker BE, Howes MJR, Forest F, Nic Lughadha E. Plants used traditionally as antimalarials in Latin America: Mining the tree of life for potential new medicines. JOURNAL OF ETHNOPHARMACOLOGY 2021; 279:114221. [PMID: 34029639 DOI: 10.1016/j.jep.2021.114221] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Malaria remains a serious and challenging disease. Traditional antimalarial medicines are largely based on plants, and ethnopharmacological research has inspired the development of antimalarial pharmaceuticals such as artemisinin. Antimalarial drug resistance is an increasing problem in Plasmodium species, and new therapeutic strategies to combat malaria are needed. Although the number of malaria cases has been decreasing in Latin America, malaria remains a significant threat in many regions. Local people in Latin America have been using numerous plant species to treat malaria, some of which have been scientifically studied, but many others have not. AIM OF THE STUDY Our principal objective is to harness ethnobotanical data on species used traditionally to treat malaria, combined with phylogenetic approaches, to understand how ethnobotany could help identify plant genera as potential sources of new medicines. MATERIALS AND METHODS Plants used to treat malaria in Latin America were compiled from published and grey literature, unpublished data, and herbarium specimens. Initial assessment of potentially important species/genera/families included compiling the number of species used within the genus, the number of use reports per genus and species, and the geographic distribution of their use. The analysis of taxonomic distribution of species reported as antimalarial in Latin America (excluding the Southern Cone) was conducted, to determine which genera and families with reputed antimalarial properties are over-represented, and phylogenetic analyses were performed to identify if there was evidence for antimalarial species being dispersed/clustered throughout the tree or at its tips. This approach enabled 'hot-nodes' in certain families to be identified, to predict new genera with potential antimalarial properties. RESULTS Over 1000 plant species have been used to treat malaria in Latin America, of which over 600 species were cited only once. The genera with the highest number of antimalarial species were Aspidosperma, Solanum, Piper, Croton and Aristolochia. In terms of geographic distribution, the most widely used genera were Aspidosperma, Momordica, Cinchona, Senna and Stachytarpheta. Significant phylogenetic signal was detected in the distribution of native species used for malaria, analysed in a genus-level phylogenetic framework. The eudicot and magnoliidae lineages were over-represented, while monocots were not. CONCLUSION Analysis of ethnobotanical use reports in a phylogenetic framework reveals the existence of hot nodes for malaria across the Latin American flora. We demonstrate how species and genera currently lacking such reports could be pinpointed as of potential interest based on their evolutionary history. Extending this approach to other regions of the world and other diseases could accelerate the discovery of novel medicines and enhance healthcare in areas where new therapeutic strategies are needed.
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Affiliation(s)
| | | | - Melanie-Jayne R Howes
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK; Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College London, SE1 9NH, UK.
| | - Félix Forest
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK.
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28
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Liana D, Rungsihirunrat K. Phytochemical screening, antimalarial activities, and genetic relationship of 16 indigenous Thai Asteraceae medicinal plants: A combinatorial approach using phylogeny and ethnobotanical bioprospecting in antimalarial drug discovery. J Adv Pharm Technol Res 2021; 12:254-260. [PMID: 34345604 PMCID: PMC8300331 DOI: 10.4103/japtr.japtr_238_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 03/22/2021] [Accepted: 04/26/2021] [Indexed: 11/08/2022] Open
Abstract
Emergence of artemisinin resistance leads the people to discover the new candidate for antimalarial drug. Combinatorial phylogeny and ethnobotanical approach may be useful to minimize the expenditure and time in laboratory testing. Seven hundred and thirty-three ethnomedicinal plants were listed from literature search. Obtained 340 internal transcribed spacer (ITS) sequences of plant list which met criteria were retrieved from GenBank NCBI and analyzed by MUSCLE and maximum likelihood phylogenetic test to generate the phylogenetic tree. Interactive phylogenetic tree was generated by Interactive Tree of Life (ITOL, https://itol.embl.de) and showed strong clustered pattern on Asteraceae. Afterward, 16 species of Asteraceae were selected to investigate the antimalarial activity, phytochemical, and genetic diversity. The presence of phytochemical was determined by standard method. DNA fluorescence-based assay was performed to determine the antimalarial activity against 3D7 Plasmodium falciparum. IC50μg/mL was used to categorize antimalarial activity. On the other hand, ITS universal primer was used to amplify and sequence the obtained extracted DNA of tested plant by cetyltrimethylammonium bromide method. Phylogenetic analyses were performed by MAFFT and RAxML with automatic bootstrapping. ITOL and Adobe Illustrator were used to generate interactive phylogenetic tree. All species tested showed the presence of phenolics and flavonoids, whereas alkaloids and terpenoids were shown vary among tested extracts. Among 16 species tested, 1 species exhibited good-moderate (Sphaeranthus indicus, IC506.59 μg/mL), 4 weak (Artemisia chinensis, Artemisia vulgaris, Tridax procumbens, and Blumea balsamifera), and 3 very weak (Eupatorium capillifolium, Wedelia trilobata, and Vernonia cinerea). Generated phylogenetic tree by ITS data was able to separate the tested species into their tribal classification. In addition, new medicinal properties of A. chinensis were discovered. Combining phylogeny approach with ethnobotanical data is useful to narrow down the selection of antimalarial plants candidate.
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Affiliation(s)
- Desy Liana
- Department of Public Health Sciences, College of Public Health Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Kanchana Rungsihirunrat
- Department of Public Health Sciences, College of Public Health Sciences, Chulalongkorn University, Bangkok, Thailand
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Analysis of Unusual Sulfated Constituents and Anti-infective Properties of Two Indonesian Mangroves, Lumnitzera littorea and Lumnitzera racemosa (Combretaceae). SEPARATIONS 2021. [DOI: 10.3390/separations8060082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Lumnitzera littorea and Lumnitzera racemosa are mangrove species distributed widely along the Indonesian coasts. Besides their ecological importance, both are of interest owing to their wealth of natural products, some of which constitute potential sources for medicinal applications. We aimed to discover and characterize new anti-infective compounds, based on population-level sampling of both species from across the Indonesian Archipelago. Root metabolites were investigated by TLC, hyphenated LC-MS/MS and isolation, the internal transcribed spacer (ITS) region of rDNA was used for genetic characterization. Phytochemical characterization of both species revealed an unusual diversity in sulfated constituents with 3,3’,4’-tri-O-methyl-ellagic acid 4-sulfate representing the major compound in most samples. None of these compounds was previously reported for mangroves. Chemophenetic comparison of L. racemosa populations from different localities provided evolutionary information, as supported by molecular phylogenetic evidence. Samples of both species from particular locations exhibited anti-bacterial potential (Southern Nias Island and East Java against Gram-negative bacteria, Halmahera and Ternate Island against Gram-positive bacteria). In conclusion, Lumnitzera roots from natural mangrove stands represent a promising source for sulfated ellagic acid derivatives and further sulfur containing plant metabolites with potential human health benefits.
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Faith DP. Valuation and Appreciation of Biodiversity: The “Maintenance of Options” Provided by the Variety of Life. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.635670] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
“Nature’s contributions to people” (NCP) is an important expansion beyond the standard ecosystem services framework, particularly as a pathway to better address global/regional biodiversity values. NCP18, “maintenance of options,” refers broadly to the capacity of ecosystems, habitats, species, or genotypes to keep options open to support a good quality of life. “Biodiversity,” interpreted as living variation, is an important, but under-appreciated, aspect of “maintenance of options.” IPBES refers to “the “option values of biodiversity,” that is, the value of maintaining living variation in order to provide possible future uses and benefits.” IPBES assessments include biodiversity option value, and use phylogenetic diversity (PD) as an indicator of change in status of NCP18. At the same time, IPBES notes the need for greater appreciation of option values of biodiversity. Popular ecosystem services framings forget the long history of consideration of these global benefits of biotic diversity to humanity, and their normative links. Popular ecological definitions mean that many current valuations of “biodiversity” neglect the benefits of biodiversity-as-variety. Economic valuations of “biodiversity” typically have focused on ecosystem aspects, not variety; related ecosystems framings value “biodiversity” with a focus on those critical elements relating to functioning of ecosystems. Greater appreciation of biodiversity option value and NCP18 may depend on clearer messaging from academia, better highlighting of the link between biodiversity and intergenerational justice, and greater communication of stories of past surprising discoveries of benefits from species that highlight biodiversity as an ongoing source of future benefits. An important pathway for better appreciation of insurance and investment benefits of variety is to understand and communicate the reasons why we value these benefits from variety. Biodiversity-as-variety is valued because we care about the welfare of future generations.
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Zhang Y, Deng T, Sun L, Landis JB, Moore MJ, Wang H, Wang Y, Hao X, Chen J, Li S, Xu M, Puno PT, Raven PH, Sun H. Phylogenetic patterns suggest frequent multiple origins of secondary metabolites across the seed-plant 'tree of life'. Natl Sci Rev 2021; 8:nwaa105. [PMID: 34691607 PMCID: PMC8288438 DOI: 10.1093/nsr/nwaa105] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/04/2020] [Indexed: 11/13/2022] Open
Abstract
To evaluate the phylogenetic patterns of the distribution and evolution of plant secondary metabolites (PSMs), we selected 8 classes of PSMs and mapped them onto an updated phylogenetic tree including 437 families of seed plants. A significant phylogenetic signal was detected in 17 of the 18 tested seed-plant clades for at least 1 of the 8 PSM classes using the D statistic. The phylogenetic signal, nevertheless, indicated weak clustering of PSMs compared to a random distribution across all seed plants. The observed signal suggests strong diversifying selection during seed-plant evolution and/or relatively weak evolutionary constraints on the evolution of PSMs. In the survey of the current phylogenetic distributions of PSMs, we found that multiple origins of PSM biosynthesis due to external selective forces for diverse genetic pathways may have played important roles. In contrast, a single origin of PSMs seems rather uncommon. The distribution patterns for PSMs observed in this study may also be useful in the search for natural compounds for medicinal purposes.
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Affiliation(s)
- Yongzeng Zhang
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Tao Deng
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Lu Sun
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Jacob B Landis
- Department of Botany and Plant Sciences, University of California Riverside, Riverside, CA 92521, USA
- School of Integrative Plant Science, Section of Plant Biology and the L.H. Bailey Hortorium, Cornell University, Ithaca, NY 14853, USA
| | - Michael J Moore
- Department of Biology, Oberlin College, Oberlin, OH 44074, USA
| | - Hengchang Wang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Chinese Academy of Sciences, Wuhan 430074, China
| | - Yuehua Wang
- School of Life Science, Yunnan University, Kunming 650091, China
| | - Xiaojiang Hao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jijun Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Shenghong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Maonian Xu
- Pharmaceutical Sciences, University of Iceland, 107 Reykjavik, Iceland
| | - Pema-Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | | | - Hang Sun
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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Wati RK, de Graaf EF, Bogarín D, Heijungs R, van Vugt R, Smets EF, Gravendeel B. Antimicrobial Activity of Necklace Orchids is Phylogenetically Clustered and can be Predicted With a Biological Response Method. Front Pharmacol 2021; 11:586345. [PMID: 33776752 PMCID: PMC7994927 DOI: 10.3389/fphar.2020.586345] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 11/24/2020] [Indexed: 11/13/2022] Open
Abstract
Necklace orchids (Coelogyninae, Epidendroideae) have been used in traditional medicine practices for centuries. Previous studies on a subset of unrelated orchid species utilized in these traditional practices revealed they possessed antimicrobial, anti-inflammatory, and anti-oxidant activity, providing experimental proof for their medicinal properties. To date however none of these species have been investigated ethno-botanically in a phylogenetic context. This study carried out comparative bioprospecting for a group of wild orchids using EBDCS (the Economic Botany Data Collection Standards) organ targeted and biological response methods. The traditional medicinal use of necklace orchids was recorded from books and journals published between 1984 and 2016. Two orchids, Coelogyne cristata and Coelogyne fimbriata, were selected, cultivated both indoors and outdoors, and the antimicrobial properties on extracts from their leaves and pseudobulbs tested against a selection of human pathogens. A molecular phylogeny of Coelogyninae based on nuclear ribosomal ITS and plastid matK DNA sequences obtained from 148 species was reconstructed with Maximum Likelihood (ML) using RAxML, Maximum Parsimony (MP) using PAUP and Bayesian Inference using MrBayes. Bioprospecting comparison of EBDCS and biological response was carried out using customized R scripts. Ethanolic extracts obtained from leaves of C. fimbriata inhibited growth of Bacillus cereus, Staphylococcus aureus, and Yersinia enterocolitica, confirming the antimicrobial properties of these extracts. Leaf extracts were found to have slightly stronger antimicrobial properties for plants cultivated outdoors than indoors. These differences were not found to be statistically significant though. Three hot nodes with high potency for antimicrobial activities were detected with the EBDCS organ targeted classification method, and eight hot nodes were detected with the biological response classification method. The biological response classification method is thus a more effective tool in finding hot nodes amongst clades of species with high medicinal potential.
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Affiliation(s)
- Richa Kusuma Wati
- Naturalis Biodiversity Center, Endless Forms Group, Leiden, Netherlands
- Center for Plant Conservation, Bogor Botanic Garden, Indonesian Institute of Sciences (LIPI), Bogor, Indonesia
| | - Esmée F. de Graaf
- Science and Technology Faculty, University of Applied Sciences Leiden, Leiden, Netherlands
| | - Diego Bogarín
- Naturalis Biodiversity Center, Endless Forms Group, Leiden, Netherlands
- Lankester Botanical Garden, University of Costa Rica, Cartago, Costa Rica
| | - Reinout Heijungs
- Institute of Environmental Sciences, Leiden University, Leiden, Netherlands
- Department of Econometrics and Operations Research, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | | | - Erik F. Smets
- Naturalis Biodiversity Center, Endless Forms Group, Leiden, Netherlands
- Institute of Biology Leiden, Leiden University, Leiden, Netherlands
- Ecology, Evolution and Biodiversity Conservation, KU Leuven, Heverlee, Belgium
| | - Barbara Gravendeel
- Naturalis Biodiversity Center, Endless Forms Group, Leiden, Netherlands
- Institute of Biology Leiden, Leiden University, Leiden, Netherlands
- Institute of Water and Wetland Research, Radboud University, Nijmegen, Netherlands
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Role of Traditional Ethnobotanical Knowledge and Indigenous Communities in Achieving Sustainable Development Goals. SUSTAINABILITY 2021. [DOI: 10.3390/su13063062] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The sustainable development goals (SDGs) are a set of 17 goals with 169 targets. The Agenda 2030 of the United Nations envisages a holistic approach to achieve these goals by focusing on humankind and the planet. In this review, we analyzed the scientific literature and technical reports of international bodies such as the United Nations and Food and Agriculture Organization relating to traditional ethnobotanical knowledge (TEK). The literature on TEK was mapped with the targets of the SDGs to determine the role of traditional knowledge in the realization of selected goals and targets. Our extensive and systematic reviewing of available literatures suggests that, of the 17 goals, at least seven goals are associated with TEK. To achieve these seven goals, a thorough understanding is required to disentangle the intricacies involving TEK, indigenous people holding TEK, and their future role in achieving the SDGs. Our review points towards the role of TEK in achieving goals linked to poverty, health and wellbeing, responsible consumption and production, climate action, life on land, and partnerships. In summary, we argue that achieving the intended outcomes of the SDGs and the targets requires concerted efforts of all relevant stakeholders, including indigenous communities, common citizens, scientists, policy makers, and world leaders.
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Parthasarathy A, Borrego EJ, Savka MA, Dobson RCJ, Hudson AO. Amino acid-derived defense metabolites from plants: A potential source to facilitate novel antimicrobial development. J Biol Chem 2021; 296:100438. [PMID: 33610552 PMCID: PMC8024917 DOI: 10.1016/j.jbc.2021.100438] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 12/23/2022] Open
Abstract
For millennia, humanity has relied on plants for its medicines, and modern pharmacology continues to reexamine and mine plant metabolites for novel compounds and to guide improvements in biological activity, bioavailability, and chemical stability. The critical problem of antibiotic resistance and increasing exposure to viral and parasitic diseases has spurred renewed interest into drug treatments for infectious diseases. In this context, an urgent revival of natural product discovery is globally underway with special attention directed toward the numerous and chemically diverse plant defensive compounds such as phytoalexins and phytoanticipins that combat herbivores, microbial pathogens, or competing plants. Moreover, advancements in “omics,” chemistry, and heterologous expression systems have facilitated the purification and characterization of plant metabolites and the identification of possible therapeutic targets. In this review, we describe several important amino acid–derived classes of plant defensive compounds, including antimicrobial peptides (e.g., defensins, thionins, and knottins), alkaloids, nonproteogenic amino acids, and phenylpropanoids as potential drug leads, examining their mechanisms of action, therapeutic targets, and structure–function relationships. Given their potent antibacterial, antifungal, antiparasitic, and antiviral properties, which can be superior to existing drugs, phytoalexins and phytoanticipins are an excellent resource to facilitate the rational design and development of antimicrobial drugs.
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Affiliation(s)
- Anutthaman Parthasarathy
- Rochester Institute of Technology, Thomas H. Gosnell School of Life Sciences, Rochester, New York, USA
| | - Eli J Borrego
- Rochester Institute of Technology, Thomas H. Gosnell School of Life Sciences, Rochester, New York, USA
| | - Michael A Savka
- Rochester Institute of Technology, Thomas H. Gosnell School of Life Sciences, Rochester, New York, USA
| | - Renwick C J Dobson
- Biomolecular Interaction Centre and School of Biological Sciences, University of Canterbury, Christchurch, New Zealand; Bio21 Molecular Science and Biotechnology Institute, Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, Australia
| | - André O Hudson
- Rochester Institute of Technology, Thomas H. Gosnell School of Life Sciences, Rochester, New York, USA.
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Gras A, Hidalgo O, D’Ambrosio U, Parada M, Garnatje T, Vallès J. The Role of Botanical Families in Medicinal Ethnobotany: A Phylogenetic Perspective. PLANTS 2021; 10:plants10010163. [PMID: 33467763 PMCID: PMC7830233 DOI: 10.3390/plants10010163] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/11/2021] [Accepted: 01/13/2021] [Indexed: 01/17/2023]
Abstract
Studies suggesting that medicinal plants are not chosen at random are becoming more common. The goal of this work is to shed light on the role of botanical families in ethnobotany, depicting in a molecular phylogenetic frame the relationships between families and medicinal uses of vascular plants in several Catalan-speaking territories. The simple quantitative analyses for ailments categories and the construction of families and disorders matrix were carried out in this study. A Bayesian approach was used to estimate the over- and underused families in the medicinal flora. Phylogenetically informed analyses were carried out to identify lineages in which there is an overrepresentation of families in a given category of use, i.e., hot nodes. The ethnobotanicity index, at a specific level, was calculated and also adapted to the family level. Two diversity indices to measure the richness of reported taxa within each family were calculated. A total of 47,630 use reports were analysed. These uses are grouped in 120 botanical families. The ethnobotanicity index for this area is 14.44% and the ethnobotanicity index at the family level is 68.21%. The most-reported families are Lamiaceae and Asteraceae and the most reported troubles are disorders of the digestive and nutritional system. Based on the meta-analytic results, indicating hot nodes of useful plants at the phylogenetic level, specific ethnopharmacological research may be suggested, including a phytochemical approach of particularly interesting taxa.
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Affiliation(s)
- Airy Gras
- Institut Botànic de Barcelona (IBB, CSIC-Ajuntament de Barcelona), Passeig del Migdia s.n., Parc de Montjuïc, 08038 Barcelona, Catalonia, Spain; (O.H.); (T.G.)
- Correspondence: (A.G.); (J.V.)
| | - Oriane Hidalgo
- Institut Botànic de Barcelona (IBB, CSIC-Ajuntament de Barcelona), Passeig del Migdia s.n., Parc de Montjuïc, 08038 Barcelona, Catalonia, Spain; (O.H.); (T.G.)
| | - Ugo D’Ambrosio
- Mediterranean Ethnobiology Programme Director, Global Diversity Foundation, 37 St. Margarets Street, Canterbury, Kent CT1 2TU, UK;
| | - Montse Parada
- Laboratori de Botànica (UB)—Unitat associada al CSIC, Facultat de Farmàcia i Ciències de l’Alimentació, Institut de Recerca de la Biodiversitat—IRBio, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Catalonia, Spain;
| | - Teresa Garnatje
- Institut Botànic de Barcelona (IBB, CSIC-Ajuntament de Barcelona), Passeig del Migdia s.n., Parc de Montjuïc, 08038 Barcelona, Catalonia, Spain; (O.H.); (T.G.)
| | - Joan Vallès
- Laboratori de Botànica (UB)—Unitat associada al CSIC, Facultat de Farmàcia i Ciències de l’Alimentació, Institut de Recerca de la Biodiversitat—IRBio, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Catalonia, Spain;
- Secció de Ciències Biològiques, Institut d’Estudis Catalans, Carrer del Carme 47, 08001 Barcelona, Catalonia, Spain
- Correspondence: (A.G.); (J.V.)
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Gras A, Garnatje T, Marín J, Parada M, Sala E, Talavera M, Vallès J. The Power of Wild Plants in Feeding Humanity: A Meta-Analytic Ethnobotanical Approach in the Catalan Linguistic Area. Foods 2020; 10:foods10010061. [PMID: 33383896 PMCID: PMC7824323 DOI: 10.3390/foods10010061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 11/21/2022] Open
Abstract
Wild food plants (WFP) have always been present in our kitchen, although they have not always been given the same importance as crops. In the Catalan linguistic area (CLA), covered in this paper, WFP were of great importance as a subsistence food not only during the years of the Spanish civil war (1936–1939) and World War II (1939–1945), but also long before these periods and in the years thereafter. The CLA has been well studied at the level of traditional knowledge on plant biodiversity, and much of this information is collected in a database by the EtnoBioFiC research group. The aim of this work is to carry out a meta-analysis of the WFP dataset of the CLA (only regarding edible uses, drinks excluded) and to identify the most quoted plants, and the information associated with them. With data from 1659 informants, we recorded 10,078 use reports of 291 taxa (278 of which at specific or subspecific levels and 13 only determined at generic level) belonging to 67 families. The most reported taxa, also with highest cultural importance indexes, are Thymus vulgaris, Foeniculum vulgare subsp. piperitum, Laurus nobilis, Rubus ulmifolius and Mentha spicata. The ethnobotanicity index for food plants is 6.62% and the informant consensus factor, also for food uses, is a very high 0.97, supporting the robustness of the information. The results provided and discussed in this work concern a significant part of the edible resources in the territory considered, which is, often and mainly, underestimated and underutilised. Its consideration could be an opportunity to promote closer and more sustainable agriculture. From the state-of-the-art of this question, it is possible to propose old, in some cases forgotten foods that could be newly introduced onto the market, first, but not only, at a local level, which could be interesting for new crop development in the frame of a valorisation of territorial identity.
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Affiliation(s)
- Airy Gras
- Institut Botànic de Barcelona (IBB, CSIC-Ajuntament de Barcelona), Passeig del Migdia s.n., Parc de Montjuïc, 08038 Barcelona, Catalonia, Spain;
- Correspondence: (A.G.); (J.V.)
| | - Teresa Garnatje
- Institut Botànic de Barcelona (IBB, CSIC-Ajuntament de Barcelona), Passeig del Migdia s.n., Parc de Montjuïc, 08038 Barcelona, Catalonia, Spain;
| | - Jon Marín
- Laboratori de Botànica—Unitat associada CSIC, Facultat de Farmàcia i Ciències de l’Alimentació—Institut de la Biodiversitat IRBio, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Catalonia, Spain; (J.M.); (M.P.); (E.S.)
| | - Montse Parada
- Laboratori de Botànica—Unitat associada CSIC, Facultat de Farmàcia i Ciències de l’Alimentació—Institut de la Biodiversitat IRBio, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Catalonia, Spain; (J.M.); (M.P.); (E.S.)
| | - Ester Sala
- Laboratori de Botànica—Unitat associada CSIC, Facultat de Farmàcia i Ciències de l’Alimentació—Institut de la Biodiversitat IRBio, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Catalonia, Spain; (J.M.); (M.P.); (E.S.)
| | - Marc Talavera
- Col·lectiu Eixarcolant, 08700 Igualada, Catalonia, Spain;
- Secció de Botànica i Micologia, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain
| | - Joan Vallès
- Laboratori de Botànica—Unitat associada CSIC, Facultat de Farmàcia i Ciències de l’Alimentació—Institut de la Biodiversitat IRBio, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Catalonia, Spain; (J.M.); (M.P.); (E.S.)
- Secció de Ciències Biològiques, Institut d’Estudis Catalans, Carrer del Carme 47, 08001 Barcelona, Catalonia, Spain
- Correspondence: (A.G.); (J.V.)
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do Nascimento Fernandes de Souza E, Hawkins JA. Ewé: a web-based ethnobotanical database for storing and analysing data. DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION 2020; 2020:5732429. [PMID: 32052012 PMCID: PMC7015817 DOI: 10.1093/database/baz144] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 11/28/2019] [Accepted: 11/29/2019] [Indexed: 12/19/2022]
Abstract
Ethnobotanical databases serve as repositories of traditional knowledge (TK), either at international or local scales. By documenting plant species with traditional use, and most importantly, the applications and modes of use of such species, ethnobotanical databases play a role in the conservation of TK and also provide access to information that could improve hypothesis generation and testing in ethnobotanical studies. Brazil has a rich medicinal flora and a rich cultural landscape. Nevertheless, cultural change and ecological degradation can lead to loss of TK. Here, we present an online database developed with open-source tools with a capacity to include all medicinal flora of Brazil. We present test data for the Leguminosae comprising a total of 2078 records, referred to here as use reports, including data compiled from literature and herbarium sources. Unlike existing databases, Ewé provides tools for the visualization of large datasets, facilitating hypothesis generation and meta-analyses. The Ewé database is currently available at www.ewedb.com.
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Affiliation(s)
| | - Julie A Hawkins
- School of Biological Sciences, University of Reading, Whiteknights Rd, Reading, Berkshire RG66AS, UK
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Hardy K. Paleomedicine and the Evolutionary Context of Medicinal Plant Use. ACTA ACUST UNITED AC 2020; 31:1-15. [PMID: 33071384 PMCID: PMC7546135 DOI: 10.1007/s43450-020-00107-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022]
Abstract
Modern human need for medicines is so extensive that it is thought to be a deep evolutionary behavior. There is abundant evidence from our Paleolithic and later prehistoric past, of survival after periodontal disease, traumas, and invasive medical treatments including trepanations and amputations, suggesting a detailed, applied knowledge of medicinal plant secondary compounds. Direct archeological evidence for use of plants in the Paleolithic is rare, but evidence is growing. An evolutionary context for early human use of medicinal plants is provided by the broad evidence for animal self-medication, in particular, of non-human primates. During the later Paleolithic, there is evidence for the use of poisonous and psychotropic plants, suggesting that Paleolithic humans built on and expanded their knowledge and use of plant secondary compounds.
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Affiliation(s)
- Karen Hardy
- Institució Catalana de Recerca i Estudis Avançats, Pg. Lluís Companys 23, 08010 Barcelona, Catalonia Spain.,Departament de Prehistòria, Facultat de Filosofia i Lletres, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Catalonia Spain
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Reinaldo R, Albuquerque U, Medeiros P. Taxonomic affiliation influences the selection of medicinal plants among people from semi-arid and humid regions-a proposition for the evaluation of utilitarian equivalence in Northeast Brazil. PeerJ 2020; 8:e9664. [PMID: 32832277 PMCID: PMC7413083 DOI: 10.7717/peerj.9664] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 07/15/2020] [Indexed: 01/23/2023] Open
Abstract
Background This study sought to investigate the occurrence of taxonomic patterns between semi-arid and humid regions, verifying how the taxonomic affiliation can influence the selection of plants for medicinal purposes and act as a selection criterion. Methods The relationship between the taxonomic affiliation and the selection of medicinal plants with four different communities was analyzed; two of them associated with a seasonally dry tropical forest and the other two associated with a tropical rain forest. We used the Utilitarian Equivalence Model (transposing the concept of ecological equivalence, proposed by Odum, for ethnobotany) to test the hypothesis that species that have the same taxonomic affiliation tend to have the same therapeutic applications in different environments (utilitarian equivalence). In addition, we used the Utilitarian Redundancy Model to verify whether, within the same medical system, plants of the same taxonomic affiliation tend to be redundant (treating the same diseases). Results We found that a pair of plants of the same genus were 9.25 times more likely to be equivalent than a different genus pair (OR = 9.25, CI [1.68-51.02], p < 0.05). When we analyzed the species used by the same population, the chances of a pair having similar therapeutic uses (utilitarian redundancy) increased when they were species of the same family (OR = 1.94, CI [1.06-3.53]; p < 0.05). Conclusions These findings confirm the hypothesis that there is an influence of taxonomic affiliation, in terms of genera and family, on the selection of medicinal plants in semi-arid and humid areas in Northeast Brazil. In addition, our Utilitarian Equivalence Model can be an important tool in the search for more common selection criteria, in order to identify the shared characteristics among the equivalent pairs and consequently the main types of perceptions or stimuli that led to the inclusion of such species in local pharmacopoeias.
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Affiliation(s)
- Rafael Reinaldo
- Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - Ulysses Albuquerque
- Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Patrícia Medeiros
- Campus de Engenharias e Ciencias Agrárias, Universidade Federal de Alagoas, Rio Largo, Alagoas, Brazil
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40
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Zaman W, Saqib S, Ullah F, Ayaz A, Ye J. COVID-19: Phylogenetic approaches may help in finding resources for natural cure. Phytother Res 2020; 34:2783-2785. [PMID: 32648294 PMCID: PMC7405213 DOI: 10.1002/ptr.6787] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/08/2020] [Accepted: 06/08/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Wajid Zaman
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Saddam Saqib
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Fazal Ullah
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Asma Ayaz
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Jianfei Ye
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, China.,Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, China
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Kamsani K, Franco FM, Slik F. A comparative account of the traditional healing practices of healers and non-healers in the Kiudang area of Brunei Darussalam. JOURNAL OF ETHNOPHARMACOLOGY 2020; 256:112788. [PMID: 32224194 DOI: 10.1016/j.jep.2020.112788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 03/21/2020] [Accepted: 03/21/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In this study, we compare the traditional medicinal knowledge and associated spiritual practices of healers with that of non-healers, to understand the relevance of healers in contemporary times. Given that Brunei Darussalam is well-known for its forest cover, the study also aims to understand the number of species collected from the forests, compared to those from human influenced habitats. MATERIALS AND METHODS A total of six specialist healers from Belait, Tutong, Dusun and Iban communities, and seven non-healers who had personal experience in self-medication using medicinal plants participated in the study. We identified the specialist healers through purposive sampling, on the basis of their reputation in the locality, while the non-healers were those experienced in self-medication, recommended by the healers. Informants were interviewed at their residences, followed by collection trips to the plant habitats. We classified the total recorded ailments into 15 disease categories. We then compared the medicinal uses cited by healers to those mentioned by non-healers, as well as with prior published records from Brunei Darussalam. We also compare the habitats of species cited by both healers and non-healers to understand the dependency of the local pharmacopoeia on forests and human-influenced habitats. RESULTS Our study records 175 medicinal plants belonging to 85 families, the majority of which (92) were exotic to Borneo. There were 110 species collected from disturbed, human influenced habitats such as roadsides, agricultural fields, secondary and degraded forests, and homestead lands, while 58 species were collected from the forests surrounding Kiudang. Majority of the plants used by both healers and non-healers were collected from human-influenced habitats, indicating that the local pharmacopoeia could be a disturbance one. Most of the medicinal plants recorded in this study were used to treat chronic, but non-life threatening conditions. Ailments affecting the digestive system were the most targeted group with 67 species used. All medicinal uses with more than one citation were recorded from healers. Medicinal uses cited by healers also had greater correspondence with prior published reports from Brunei Darussalam. Healers believe that combining medicinal plants can produce a synergistic effect. Our study found that traditional knowledge related to healing practices is mostly transmitted vertically from parents to children. We also show that a ritual gift (pikaras) and invocations characteristic of the beliefs of the healers play an important role in facilitating healing. CONCLUSION Our study adds further evidence to prior studies that the medicinal plants and healing practices in the Kiudang region could be considered as disturbance pharmacopoeia. Healers with their knowledge on both therapeutic and spiritual aspects of healing continue to play an important role in local healthcare.
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Affiliation(s)
- Khairunzahidah Kamsani
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam.
| | - F Merlin Franco
- Institute of Asian Studies, Universiti Brunei Darussalam, Brunei Darussalam.
| | - Ferry Slik
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam.
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Holzmeyer L, Hartig AK, Franke K, Brandt W, Muellner-Riehl AN, Wessjohann LA, Schnitzler J. Evaluation of plant sources for antiinfective lead compound discovery by correlating phylogenetic, spatial, and bioactivity data. Proc Natl Acad Sci U S A 2020; 117:12444-12451. [PMID: 32393619 PMCID: PMC7275773 DOI: 10.1073/pnas.1915277117] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Antibiotic resistance and viral diseases are rising around the world and are becoming major threats to global health, food security, and development. One measure that has been suggested to mitigate this crisis is the development of new antibiotics. Here, we provide a comprehensive evaluation of the phylogenetic and biogeographic patterns of antiinfective compounds from seed plants in one of the most species-rich regions on Earth and identify clades with naturally occurring substances potentially suitable for the development of new pharmaceutical compounds. Specifically, we combine taxonomic and phylogenetic data for >7,500 seed plant species from the flora of Java with >16,500 secondary metabolites and 6,255 georeferenced occurrence records to 1) identify clades in the phylogeny that are characterized by either an overrepresentation ("hot clades") or an underrepresentation ("cold clades") of antiinfective compounds and 2) assess the spatial patterns of plants with antiinfective compounds relative to total plant diversity across the region. Across the flora of Java, we identify 26 "hot clades" with plant species providing a high probability of finding antibiotic constituents. In addition, 24 "cold clades" constitute lineages with low numbers of reported activities but which have the potential to yield novel compounds. Spatial patterns of plant species and metabolite diversity are strongly correlated across Java, indicating that regions of highest species diversity afford the highest potential to discover novel natural products. Our results indicate that the combination of phylogenetic, spatial, and phytochemical information is a useful tool to guide the selection of taxa for efforts aimed at lead compound discovery.
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Affiliation(s)
- Laura Holzmeyer
- Department of Molecular Evolution and Plant Systematics & Herbarium (LZ), Institute of Biology, Leipzig University, D-04103 Leipzig, Germany
| | - Anne-Kathrin Hartig
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, D-06120 Halle (Saale), Germany
| | - Katrin Franke
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, D-06120 Halle (Saale), Germany
| | - Wolfgang Brandt
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, D-06120 Halle (Saale), Germany
| | - Alexandra N Muellner-Riehl
- Department of Molecular Evolution and Plant Systematics & Herbarium (LZ), Institute of Biology, Leipzig University, D-04103 Leipzig, Germany;
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, D-04103 Leipzig, Germany
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, D-06120 Halle (Saale), Germany;
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, D-04103 Leipzig, Germany
| | - Jan Schnitzler
- Department of Molecular Evolution and Plant Systematics & Herbarium (LZ), Institute of Biology, Leipzig University, D-04103 Leipzig, Germany;
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, D-04103 Leipzig, Germany
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Phumthum M, Balslev H. Anti-Infectious Plants of The Thai Karen: A Meta-Analysis. Antibiotics (Basel) 2020; 9:antibiotics9060298. [PMID: 32498413 PMCID: PMC7345792 DOI: 10.3390/antibiotics9060298] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/30/2020] [Accepted: 05/31/2020] [Indexed: 12/13/2022] Open
Abstract
Pharmacology has developed many drugs to treat infections, but many people, especially in developing countries, cannot afford to purchase them, and still depend on traditional knowledge and local medicinal plants to fight off infections. In addition, numerous microbes have developed resistance to the pharmaceutical drugs developed to fight them, and for many, such as Covid-19, effective drugs remain to be found. Ethnomedicinal knowledge is useful, not only for local people as a source of medicine for primary health care, but also for new pharmacological discoveries. This study aimed to identify the plants that the Karen, the largest hill-tribe ethnic minority in northern and western Thailand, use for treatments of infectious diseases. We present a meta-analysis of data from 16 ethnobotanical studies of 25 Karen villages with the aim of understanding traditional knowledge and treatments and point to potential plants for further pharmacological development. The Karen used 127 plant species from 59 plant families to treat infections and infectious diseases. The Cultural Important Index (CI) showed that the Leguminosae, Euphorbiaceae, Asteraceae, Lauraceae, Apocynaceae, Menispermaceae, and Lamiaceae were the most commonly used families. As for species, Cleidion javanicum, Tinospora crispa, Litsea cubeba, Aesculus assamica, Tadehagi triquetrum, Senna alata, Tithonia diversifolia, Embelia sessiliflora, and Combretum indicum were the most commonly used in treatments of infectious diseases. We suggest that these plant species should be the first to be pharmacologically tested for possible development of medicines, and the remaining species registered should subsequently undergo testing.
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Affiliation(s)
- Methee Phumthum
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand
- Sireeruckhacharti Nature Learning Park, Mahidol University, Nakhon Pathom 73170, Thailand
- Correspondence:
| | - Henrik Balslev
- Department of Biology, Faculty of Natural Science, Aarhus University, 8000 Aarhus, Denmark;
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Zeng X, Zhang P, Wang Y, Qin C, Chen S, He W, Tao L, Tan Y, Gao D, Wang B, Chen Z, Chen W, Jiang YY, Chen YZ. CMAUP: a database of collective molecular activities of useful plants. Nucleic Acids Res 2020; 47:D1118-D1127. [PMID: 30357356 PMCID: PMC6324012 DOI: 10.1093/nar/gky965] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 10/05/2018] [Indexed: 01/03/2023] Open
Abstract
The beneficial effects of functionally useful plants (e.g. medicinal and food plants) arise from the multi-target activities of multiple ingredients of these plants. The knowledge of the collective molecular activities of these plants facilitates mechanistic studies and expanded applications. A number of databases provide information about the effects and targets of various plants and ingredients. More comprehensive information is needed for broader classes of plants and for the landscapes of individual plant’s multiple targets, collective activities and regulated biological pathways, processes and diseases. We therefore developed a new database, Collective Molecular Activities of Useful Plants (CMAUP), to provide the collective landscapes of multiple targets (ChEMBL target classes) and activity levels (in 2D target-ingredient heatmap), and regulated gene ontologies (GO categories), biological pathways (KEGG categories) and diseases (ICD blocks) for 5645 plants (2567 medicinal, 170 food, 1567 edible, 3 agricultural and 119 garden plants) collected from or traditionally used in 153 countries and regions. These landscapes were derived from 47 645 plant ingredients active against 646 targets in 234 KEGG pathways associated with 2473 gene ontologies and 656 diseases. CMAUP (http://bidd2.nus.edu.sg/CMAUP/) is freely accessible and searchable by keywords, plant usage classes, species families, targets, KEGG pathways, gene ontologies, diseases (ICD code) and geographical locations.
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Affiliation(s)
- Xian Zeng
- The State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua University Shenzhen Graduate School, Shenzhen Technology and Engineering Laboratory for Personalized Cancer Diagnostics and Therapeutics, Shenzhen Kivita Innovative Drug Discovery Institute, Guangdong 518055, P. R. China.,Bioinformatics and Drug Design group, Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Peng Zhang
- Bioinformatics and Drug Design group, Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Yali Wang
- Bioinformatics and Drug Design group, Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Chu Qin
- Bioinformatics and Drug Design group, Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Shangying Chen
- Bioinformatics and Drug Design group, Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Weidong He
- Bioinformatics and Drug Design group, Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Lin Tao
- Bioinformatics and Drug Design group, Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore.,Zhejiang Key Laboratory of Gastro-intestinal Pathophysiology, Zhejiang Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, School of Medicine, Hangzhou Normal University, Hangzhou 310006, R. P. China
| | - Ying Tan
- The State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua University Shenzhen Graduate School, Shenzhen Technology and Engineering Laboratory for Personalized Cancer Diagnostics and Therapeutics, Shenzhen Kivita Innovative Drug Discovery Institute, Guangdong 518055, P. R. China
| | - Dan Gao
- The State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua University Shenzhen Graduate School, Shenzhen Technology and Engineering Laboratory for Personalized Cancer Diagnostics and Therapeutics, Shenzhen Kivita Innovative Drug Discovery Institute, Guangdong 518055, P. R. China
| | - Bohua Wang
- Key Lab of Agricultural Products Processing and Quality Control of Nanchang City, Jiangxi Agricultural University, Nanchang 330045, P. R. China.,College of Life and Environmental Sciences, Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan University of Arts and Science, Changde, Hunan 415000, P. R. China
| | - Zhe Chen
- Zhejiang Key Laboratory of Gastro-intestinal Pathophysiology, Zhejiang Hospital of Traditional Chinese Medicine, Zhejiang Chinese Medical University, School of Medicine, Hangzhou Normal University, Hangzhou 310006, R. P. China
| | - Weiping Chen
- Key Lab of Agricultural Products Processing and Quality Control of Nanchang City, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Yu Yang Jiang
- The State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua University Shenzhen Graduate School, Shenzhen Technology and Engineering Laboratory for Personalized Cancer Diagnostics and Therapeutics, Shenzhen Kivita Innovative Drug Discovery Institute, Guangdong 518055, P. R. China
| | - Yu Zong Chen
- Bioinformatics and Drug Design group, Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
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Ciavatta ML, Lefranc F, Vieira LM, Kiss R, Carbone M, van Otterlo WAL, Lopanik NB, Waeschenbach A. The Phylum Bryozoa: From Biology to Biomedical Potential. Mar Drugs 2020; 18:E200. [PMID: 32283669 PMCID: PMC7230173 DOI: 10.3390/md18040200] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/31/2020] [Accepted: 04/06/2020] [Indexed: 01/06/2023] Open
Abstract
Less than one percent of marine natural products characterized since 1963 have been obtained from the phylum Bryozoa which, therefore, still represents a huge reservoir for the discovery of bioactive metabolites with its ~6000 described species. The current review is designed to highlight how bryozoans use sophisticated chemical defenses against their numerous predators and competitors, and which can be harbored for medicinal uses. This review collates all currently available chemoecological data about bryozoans and lists potential applications/benefits for human health. The core of the current review relates to the potential of bryozoan metabolites in human diseases with particular attention to viral, brain, and parasitic diseases. It additionally weighs the pros and cons of total syntheses of some bryozoan metabolites versus the synthesis of non-natural analogues, and explores the hopes put into the development of biotechnological approaches to provide sustainable amounts of bryozoan metabolites without harming the natural environment.
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Affiliation(s)
- Maria Letizia Ciavatta
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Chimica Biomolecolare (ICB), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (M.L.C.); (M.C.)
| | - Florence Lefranc
- Service de Neurochirurgie, Hôpital Erasme, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium
| | - Leandro M. Vieira
- Departamento de Zoologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE 50670-901, Brazil;
| | - Robert Kiss
- Retired – formerly at the Fonds National de la Recherche Scientifique (FRS-FNRS), 1000 Brussels, Belgium;
| | - Marianna Carbone
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Chimica Biomolecolare (ICB), Via Campi Flegrei 34, 80078 Pozzuoli, Italy; (M.L.C.); (M.C.)
| | - Willem A. L. van Otterlo
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa;
| | - Nicole B. Lopanik
- School of Earth and Atmospheric Sciences, School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA;
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46
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Hao DC, Xiao PG. Pharmaceutical resource discovery from traditional medicinal plants: Pharmacophylogeny and pharmacophylogenomics. CHINESE HERBAL MEDICINES 2020; 12:104-117. [PMID: 36119793 PMCID: PMC9476761 DOI: 10.1016/j.chmed.2020.03.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/11/2019] [Accepted: 09/25/2019] [Indexed: 01/25/2023] Open
Abstract
The worldwide botanical and medicinal culture diversity are astonishing and constitute a Pierian spring for innovative drug R&D. Here, the latest awareness and the perspectives of pharmacophylogeny and pharmacophylogenomics, as well as their expanding utility in botanical drug R&D, are systematically summarized and highlighted. Chemotaxonomy is based on the fact that closely related plants contain the same or similar chemical profiles. Correspondingly, it is better to combine morphological characters, DNA markers and chemical markers in the inference of medicinal plant phylogeny. Medicinal plants within the same phylogenetic groups may have the same or similar therapeutic effects, thus forming the core of pharmacophylogeny. Here we systematically review and comment on the versatile applications of pharmacophylogeny in (1) looking for domestic resources of imported drugs, (2) expanding medicinal plant resources, (3) quality control, identification and expansion of herbal medicines, (4) predicting the chemical constituents or active ingredients of herbal medicine and assisting in the identification and determination of chemical constituents, (5) the search for new drugs sorting out, and (6) summarizing and improving herbal medicine experiences, etc. Such studies should be enhanced within the context of deeper investigations of molecular biology and genomics of traditional medicinal plants, phytometabolites and metabolomics, and ethnomedicine-based pharmacological activity, thus enabling the sustainable conservation and utilization of traditional medicinal resources.
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Affiliation(s)
- Da-cheng Hao
- Biotechnology Institute, School of Environment and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China
- Corresponding author.
| | - Pei-gen Xiao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China
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47
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Albuquerque UP, do Nascimento ALB, Silva Chaves L, Feitosa IS, de Moura JMB, Gonçalves PHS, da Silva RH, da Silva TC, Ferreira Júnior WS. The chemical ecology approach to modern and early human use of medicinal plants. CHEMOECOLOGY 2020. [DOI: 10.1007/s00049-020-00302-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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48
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Xu M, Heidmarsson S, de Boer HJ, Kool A, Olafsdottir ES. Ethnopharmacology of the club moss subfamily Huperzioideae (Lycopodiaceae, Lycopodiophyta): A phylogenetic and chemosystematic perspective. JOURNAL OF ETHNOPHARMACOLOGY 2019; 245:112130. [PMID: 31376517 DOI: 10.1016/j.jep.2019.112130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/30/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The most speciose subfamily Huperzioideae (Lycopodiaceae, Lycopodiophyta) contains about 276 species, and some (ca. 20 species) have traditionally been used for the treatment of e.g., dementia, rheumatism and traumatic injury. Ethnopharmacological studies have also contributed to the development of huperzine A as a drug lead, a compound first isolated from the club moss Huperzia serrata (Thunb. ex Murray) Trevis. AIM OF THE REVIEW This review, with a phylogenetic and chemosystematic perspective, intends to highlight plant identification challenges in these taxa with examples from club moss phytochemical and ethnopharmacological studies, as these lead to data inconsistency and confusion. We suggest that future studies should include more details on plant identification including for example plant specimen images and DNA barcoding data. An integrative approach combining DNA barcoding and chemical fingerprinting is also introduced. MATERIALS AND METHODS Literature concerning ethnopharmacology and chemosystematics of Huperzioideae club mosses was searched from databases, e.g. PubMed, Web of Science, SciFinder, etc. Plant names were retrieved from original publications, and compared with up-to-date taxonomic and phylogenetic status. Ethnobotanical uses and herbal preparations were summarized. Production of certain pharmaceutically interesting compounds, such as the alkaloid huperzine A, was explored in a phylogenetic context. RESULTS Most traditionally used club mosses are associated with psychoactivity, followed by medicinal uses against rheumatism and traumatic injury. Herbs are often prepared as infusions, decoctions or tinctures, and this implies importance of water- or aqueous-alcohol-soluble substances, such as alkaloids. Most ethnopharmacological papers on club mosses need to update or correct plant names according to recent taxonomic nomenclature, and there are still a number of unidentified species with traditional use. Advanced LC-MS chemical profiling techniques, enable distinction of genotypes of the same species as well as annotation of potential chemotaxonomic markers. In combination with DNA barcoding, chemosystematics could also help us select plant taxa with higher pharmaceutical potential. Caution should be taken when interpreting bioassay results, in terms of compounds or extract preparation and bioassay standardization. CONCLUSION Huperzioideae club mosses have interesting pharmaceutical potential supported by ethnopharmacological investigations. Bioprospecting of these plants should be preceded by careful plant identification to produce consistent and reproducible data. We expect that DNA barcoding and LC-MS-based chemical fingerprinting could facilitate and improve ethnopharmaceutical studies in selection of club moss taxa.
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Affiliation(s)
- Maonian Xu
- Faculty of Pharmaceutical Sciences, University of Iceland, IS-107, Reykjavik, Iceland
| | - Starri Heidmarsson
- Akureyri Division, Icelandic Institute of Natural History, IS-600, Akureyri, Iceland
| | - Hugo J de Boer
- Natural History Museum, University of Oslo, NO-0318, Oslo, Norway
| | - Anneleen Kool
- Natural History Museum, University of Oslo, NO-0318, Oslo, Norway
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49
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Antonelli A, Smith RJ, Simmonds MSJ. Unlocking the properties of plants and fungi for sustainable development. NATURE PLANTS 2019; 5:1100-1102. [PMID: 31712752 DOI: 10.1038/s41477-019-0554-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Alexandre Antonelli
- Royal Botanic Gardens, Kew, Richmond, UK.
- Gothenburg Global Biodiversity Centre, Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden.
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50
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Tucker CM, Aze T, Cadotte MW, Cantalapiedra JL, Chisholm C, Díaz S, Grenyer R, Huang D, Mazel F, Pearse WD, Pennell MW, Winter M, Mooers AO. Assessing the utility of conserving evolutionary history. Biol Rev Camb Philos Soc 2019; 94:1740-1760. [PMID: 31149769 PMCID: PMC6852562 DOI: 10.1111/brv.12526] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 05/02/2019] [Accepted: 05/08/2019] [Indexed: 01/05/2023]
Abstract
It is often claimed that conserving evolutionary history is more efficient than species-based approaches for capturing the attributes of biodiversity that benefit people. This claim underpins academic analyses and recommendations about the distribution and prioritization of species and areas for conservation, but evolutionary history is rarely considered in practical conservation activities. One impediment to implementation is that arguments related to the human-centric benefits of evolutionary history are often vague and the underlying mechanisms poorly explored. Herein we identify the arguments linking the prioritization of evolutionary history with benefits to people, and for each we explicate the purported mechanism, and evaluate its theoretical and empirical support. We find that, even after 25 years of academic research, the strength of evidence linking evolutionary history to human benefits is still fragile. Most - but not all - arguments rely on the assumption that evolutionary history is a useful surrogate for phenotypic diversity. This surrogacy relationship in turn underlies additional arguments, particularly that, by capturing more phenotypic diversity, evolutionary history will preserve greater ecosystem functioning, capture more of the natural variety that humans prefer, and allow the maintenance of future benefits to humans. A surrogate relationship between evolutionary history and phenotypic diversity appears reasonable given theoretical and empirical results, but the strength of this relationship varies greatly. To the extent that evolutionary history captures unmeasured phenotypic diversity, maximizing the representation of evolutionary history should capture variation in species characteristics that are otherwise unknown, supporting some of the existing arguments. However, there is great variation in the strength and availability of evidence for benefits associated with protecting phenotypic diversity. There are many studies finding positive biodiversity-ecosystem functioning relationships, but little work exists on the maintenance of future benefits or the degree to which humans prefer sets of species with high phenotypic diversity or evolutionary history. Although several arguments link the protection of evolutionary history directly with the reduction of extinction rates, and with the production of relatively greater future biodiversity via increased adaptation or diversification, there are few direct tests. Several of these putative benefits have mismatches between the relevant spatial scales for conservation actions and the spatial scales at which benefits to humans are realized. It will be important for future work to fill in some of these gaps through direct tests of the arguments we define here.
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Affiliation(s)
- Caroline M. Tucker
- Department of BiologyUniversity of North Carolina at Chapel Hill, Coker Hall, CB #3280 120 South RoadChapel Hill, NC 27599‐3280U.S.A.
- Centre d'Écologie Fonctionnelle et Évolutive (UMR 5175), CNRS34090 MontpellierFrance
| | - Tracy Aze
- School of Earth and Environment, Maths/Earth and Environment BuildingUniversity of LeedsLeedsLS2 9JTU.K.
| | - Marc W. Cadotte
- Department of Biological SciencesUniversity of Toronto Scarborough, 1265 Military TrailTorontoONM1C 1A4Canada
- Department of Ecology and Evolutionary BiologyUniversity of Toronto, 25 Willcocks StreetTorontoONM5S 3B2Canada
| | - Juan L. Cantalapiedra
- Museum für Naturkunde, Leibniz‐Institut für Evolutions und Biodiversitätsforschung, Invalidenstraße 4310115BerlinGermany
- Departamento de Ciencias de la VidaUniversidad de Alcalá28805Alcalá de HenaresMadridSpain
| | - Chelsea Chisholm
- Department of Ecology and EvolutionQuartier UNIL‐Sorge Batiment Biophore CH‐1015 LausanneSwitzerland
| | - Sandra Díaz
- Instituto Multidisciplinario de Biología Vegetal (IMBIV), Consejo Nacional de Investigaciones Científicas y Técnicas and Facultad de Ciencias Exactas, Físicas y NaturalesUniversidad Nacional de Córdoba, Casilla de Correo 4955000CórdobaArgentina
| | - Richard Grenyer
- School of Geography and the EnvironmentSouth Parks Road, University of OxfordOxfordOX1 3QYU.K.
| | - Danwei Huang
- Department of Biological Sciences and Tropical Marine Science InstituteNational University of Singapore, 16 Science Drive 4, 117558Singapore
| | - Florent Mazel
- Department of Biological Sciences8888 University Drive, Simon Fraser UniversityBurnabyBCV5A 1S6, Canada
- Department of Botany2329 West Mall, University of British ColumbiaVancouverBCV6T 1Z4Canada
- Biodiversity Research Centre2212 Main Mall, University of British ColumbiaVancouverBCV6T 1Z4Canada
| | - William D. Pearse
- Department of Biology & Ecology Center5205 Old Main Hill, Utah State UniversityLoganUT84322, U.S.A.
| | - Matthew W. Pennell
- Biodiversity Research Centre2212 Main Mall, University of British ColumbiaVancouverBCV6T 1Z4Canada
- Department of ZoologySouth Parks Road, University of British ColumbiaVancouverBCV6T 1Z4Canada
| | - Marten Winter
- German Centre for Integrative Biodiversity Research (iDiv)Deutscher Platz 5E, 04103 LeipzigGermany
| | - Arne O. Mooers
- Department of Biological Sciences8888 University Drive, Simon Fraser UniversityBurnabyBCV5A 1S6, Canada
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