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Ye J, Cao J, Chen X, Ma J, Li Y, Gao X, Zhang Y, Wang C. Extraction optimisation and compositional characterisation of total flavonoids from the Chinese herb tulip: a natural source of antioxidants and anti-inflammatory agents. Nat Prod Res 2023:1-8. [PMID: 37967021 DOI: 10.1080/14786419.2023.2281000] [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: 08/24/2023] [Accepted: 11/03/2023] [Indexed: 11/17/2023]
Abstract
In this study, total flavonoids from the Chinese herb tulip were extracted by ultrasound-assisted extraction (UAE), their main components were analysed and confirmed, and their antioxidant and anti-inflammatory activities were evaluated. The results showed that the extraction rate of total flavonoids from the Chinese herb tulip reached 390.77 ± 3.88 mg·g-1 after optimisation by one-factor test and response surface methodology. 23 compounds were identified in the solution of total flavonoids from the Chinese herb tulip, including 18 flavonoids such as Hyperoside, Quercetin, Astilbin, etc., and the effects of total flavonoids of the Chinese herb tulip (TFT) on ABTS+ radicals, DPPH radicals, and superoxide anion with a good scavenging rate, good total reducing power, and total antioxidant capacity. Secondly, TFT showed good inhibition of 5-lipoxygenase (5-LOX) and cyclooxygenase-2 (COX-2).
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Affiliation(s)
- Jiafeng Ye
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Jiamin Cao
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xian Chen
- Eneplus Biotech Co., Ltd, Guangzhou, China
| | - Jingjing Ma
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yangchen Li
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xia Gao
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yurui Zhang
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Chunli Wang
- Engineering Research Center for Pharmaceutical Engineering and Process Chemistry, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
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Rose T, Wilkinson M, Lowe C, Xu J, Hughes D, Hassall KL, Hassani‐Pak K, Amberkar S, Noleto‐Dias C, Ward J, Heuer S. Novel molecules and target genes for vegetative heat tolerance in wheat. PLANT-ENVIRONMENT INTERACTIONS (HOBOKEN, N.J.) 2022; 3:264-289. [PMID: 37284432 PMCID: PMC10168084 DOI: 10.1002/pei3.10096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/21/2022] [Accepted: 11/28/2022] [Indexed: 06/08/2023]
Abstract
To prevent yield losses caused by climate change, it is important to identify naturally tolerant genotypes with traits and related pathways that can be targeted for crop improvement. Here we report on the characterization of contrasting vegetative heat tolerance in two UK bread wheat varieties. Under chronic heat stress, the heat-tolerant cultivar Cadenza produced an excessive number of tillers which translated into more spikes and higher grain yield compared to heat-sensitive Paragon. RNAseq and metabolomics analyses revealed that over 5000 genotype-specific genes were differentially expressed, including photosynthesis-related genes, which might explain the observed ability of Cadenza to maintain photosynthetic rate under heat stress. Around 400 genes showed a similar heat-response in both genotypes. Only 71 genes showed a genotype × temperature interaction. As well as known heat-responsive genes such as heat shock proteins (HSPs), several genes that have not been previously linked to the heat response, particularly in wheat, have been identified, including dehydrins, ankyrin-repeat protein-encoding genes, and lipases. Contrary to primary metabolites, secondary metabolites showed a highly differentiated heat response and genotypic differences. These included benzoxazinoid (DIBOA, DIMBOA), and phenylpropanoids and flavonoids with known radical scavenging capacity, which was assessed via the DPPH assay. The most highly heat-induced metabolite was (glycosylated) propanediol, which is widely used in industry as an anti-freeze. To our knowledge, this is the first report on its response to stress in plants. The identified metabolites and candidate genes provide novel targets for the development of heat-tolerant wheat.
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Affiliation(s)
| | | | | | | | | | | | | | - Sandeep Amberkar
- Rothamsted ResearchHarpendenUK
- Institute of Systems, Molecular and Integrative BiologyUniversity of LiverpoolLiverpoolUK
| | | | | | - Sigrid Heuer
- Rothamsted ResearchHarpendenUK
- National Institute of Agricultural Botany (NIAB)CambridgeUK
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Abdullah FO, Hussain FHS, Sardar AS, Gilardoni G, Thu ZM, Vidari G. Bio-Active Compounds from Teucrium Plants Used in the Traditional Medicine of Kurdistan Region, Iraq. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103116. [PMID: 35630593 PMCID: PMC9145536 DOI: 10.3390/molecules27103116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/28/2022] [Accepted: 05/03/2022] [Indexed: 01/11/2023]
Abstract
Herbal medicine is still widely practiced in the Kurdistan Region, Iraq, especially by people living in villages in mountainous regions. Seven taxa belonging to the genus Teucrium (family Lamiaceae) are commonly employed in the Kurdish traditional medicine, especially to treat jaundice, stomachache and abdominal problems. We report, in this paper, a comprehensive account about the chemical structures and bioactivities of most representative specialized metabolites isolated from these plants. These findings indicate that Teucrium plants used in the folk medicine of Iraqi Kurdistan are natural sources of specialized metabolites that are potentially beneficial to human health.
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Affiliation(s)
- Fuad O. Abdullah
- Department of Chemistry, College of Science, Salahaddin University-Erbil, Erbil 44001, Kurdistan Region, Iraq
- Department of Pharmacognosy, Faculty of Pharmacy, Tishk International University, Erbil 44001, Kurdistan Region, Iraq
- Correspondence: (F.O.A.); (G.V.)
| | - Faiq H. S. Hussain
- Department of Medical Analysis, Faculty of Applied Science, Tishk International University, Erbil 44001, Kurdistan Region, Iraq;
| | - Abdullah Sh. Sardar
- Department of Biology, College of Education, Salahaddin University-Erbil, Erbil 44001, Kurdistan Region, Iraq;
| | - Gianluca Gilardoni
- Departamento de Química, Universidad Técnica Particular de Loja, Loja 110107, Ecuador;
| | - Zaw Min Thu
- Department of Chemistry, Kalay University, Kalay 03044, Myanmar;
| | - Giovanni Vidari
- Department of Medical Analysis, Faculty of Applied Science, Tishk International University, Erbil 44001, Kurdistan Region, Iraq;
- Dipartimento di Chimica, Università di Pavia, 27100 Pavia, Italy
- Correspondence: (F.O.A.); (G.V.)
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Phytochemistry of Verbascum Species Growing in Iraqi Kurdistan and Bioactive Iridoids from the Flowers of Verbascum calvum. PLANTS 2020; 9:plants9091066. [PMID: 32825214 PMCID: PMC7569995 DOI: 10.3390/plants9091066] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/02/2020] [Accepted: 08/04/2020] [Indexed: 12/22/2022]
Abstract
Traditional medicine is still widely practiced in Iraqi Kurdistan, especially by people living in villages on mountainous regions; medicinal plants are also sold in the markets of the large towns, such as at Erbil, the capital of the Kurdistan Autonomous Region. About a dozen of Verbascum species (Scrophulariaceae) are commonly employed in the Kurdish traditional medicine, especially for treating burns and other skin diseases. However, the isolation of bioactive secondary metabolites from these plants has not been the subject of intense scientific investigations in Iraq. Therefore, the information reported in the literature about the species growing in Kurdistan has been summarized in the first part of this paper, although investigations have been performed on vegetable samples collected in neighbouring countries, such as Turkey and Iran. In the second part of the work, we have investigated, for the first time, the contents of a methanol and a hydromethanol extract of V. calvum flowers. The extracts exhibited weak antimicrobial activities, whereas the methanol extract showed significant antiproliferative effects against an A549 lung cancer cell line. Moreover, both extracts exhibited a significant dose-dependent free radical scavenging action against the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical, comparable to that of ascorbic acid. In the subsequent phytochemical study, a high phenolic content was determined in both extracts by the Folin–Ciocalteu assay and medium-pressure liquid chromatographic (MPLC) separation led to the isolation of iridoid glucosides ajugol and aucubin from the methanol extract. In conclusion, the high anti-inflammatory effects of aucubin and the remarkable antioxidant (antiradical) properties of the extracts give scientific support to the traditional use of V. calvum flowers for the preparation in Kurdistan of remedies to cure skin burns and inflammations.
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