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Ahn SY, Kim KA, Lee S, Kim KH. Potential skin anti-aging effects of main phenolic compounds, tremulacin and tremuloidin from Salix chaenomeloides leaves on TNF-α-stimulated human dermal fibroblasts. Chem Biol Interact 2024; 402:111192. [PMID: 39127184 DOI: 10.1016/j.cbi.2024.111192] [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: 05/08/2024] [Revised: 07/30/2024] [Accepted: 08/07/2024] [Indexed: 08/12/2024]
Abstract
The genus Salix spp. has long been recognized as a healing herb for its use in treating fever, inflammation, and pain relief, as well as a food source for its nutritional value. In this study, we aimed to explore the potential bioactive natural products in the leaves of Salix chaenomeloides, commonly known as Korean pussy willow, for their protective effects against skin damage, including aging. Utilizing LC/MS-guided chemical analysis of the ethanol extract of S. chaenomeloides leaves, with a focus on major compounds, we successfully isolated two main phenolic compounds, tremulacin (1) and tremuloidin (2). Subsequently, we investigated the protective effects of tremulacin (1) and tremuloidin (2) in TNF-α-stimulated human dermal fibroblasts (HDFs). The results revealed that both tremulacin (1) and tremuloidin (2) inhibited TNF-α-stimulation-induced ROS, suppressed matrix metalloproteinase-1 (MMP-1) expression, and enhanced collagen secretion. This implies that both tremulacin (1) and tremuloidin (2) hold promise as preventive agents against photoaging-induced skin aging. Furthermore, we assessed the activity of mitogen-activated protein kinases (MAPKs), cyclooxygenase-2 (COX-2), and heme oxygenase 1 (HO-1) to elucidate the mechanism of photoaging inhibition by tremuloidin (2), which exhibited superior efficacy. We found that tremuloidin (2) inhibited ERK and p38 phosphorylation and notably suppressed COX-2 expression while significantly upregulating HO-1 expression. These findings suggest potent anti-inflammatory and antioxidant properties of tremuloidin (2), positioning it as a potential candidate for combating photoaging-induced skin aging.
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Affiliation(s)
- Si-Young Ahn
- Department of Life Science, College of Bio-Nano Technology, Gachon University, Seongnam, 13120, Republic of Korea
| | - Kyung Ah Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sullim Lee
- Department of Life Science, College of Bio-Nano Technology, Gachon University, Seongnam, 13120, Republic of Korea.
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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2
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Yang QQ, Yang YF, Chen XQ, Li RT, Zhang ZJ. Flavonoids From the Aerial Parts of Sophora tonkinensis and Their Potential Anti-Inflammatory Activities. Chem Biodivers 2024; 21:e202400399. [PMID: 38634752 DOI: 10.1002/cbdv.202400399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/13/2024] [Accepted: 04/18/2024] [Indexed: 04/19/2024]
Abstract
Four undescribed prenylated flavonoids, sophoratones A-D (1-4), and 17 known flavonoids, were obtained from the aerial parts of Sophora tonkinensis. Their structures with absolute configurations were elucidated by detailed interpretation of NMR spectroscopy, mass spectrometry, and ECD calculations. Meanwhile, the ability of these compounds to inhibit the release of nitric oxide (NO) by a lipopolysaccharide induced mouse in RAW 264.7 cells was assayed. The results indicated that some compounds exhibited clear inhibitory effects, with IC50 ranging from 19.91±1.08 to 35.72±2.92 μM. These results suggest that prenylated flavonoids from the aerial parts of S. tonkinensis could potentially be used as a latent source of anti-inflammatory agents.
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Affiliation(s)
- Qing-Qing Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, P. R. China
| | - Yan-Fei Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, P. R. China
| | - Xuan-Qin Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, P. R. China
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, P. R. China
| | - Zhi-Jun Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, P. R. China
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Kim KA, Tran NKS, Baek J, Lee S, Kang KS, Kim KH. Proanthocyanidins and Phenolic Compounds from the Twigs of Salix chaenomeloides and Their Anti-Lipogenic Effects on 3T3-L1 Preadipocytes. Nutrients 2024; 16:1036. [PMID: 38613069 PMCID: PMC11013749 DOI: 10.3390/nu16071036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/07/2024] [Accepted: 03/29/2024] [Indexed: 04/14/2024] Open
Abstract
The present study investigated potential bioactive natural products from the EtOH extract of Salix chaenomeloides twigs using column chromatography, leading to the isolation of six compounds (1-6), which were characterized as two proanthocyanidins, procyanidin B2 (1) and procyanidin B1 (2), and four phenolic compounds, 4-hydroxybenzoic acid β-D-glucosyl ester (3), di-O-methylcrenatin (4), p-coumaric acid glucoside (5), and syringin (6) by the comparison of their NMR spectra with the reported data and high-resolution (HR)-electrospray ionization mass spectroscopy (ESI-MS) analysis. We investigated the potential of six compounds (1-6) to inhibit adipogenesis in 3T3-L1 preadipocytes, which showed that the compounds (1-6) significantly reduced lipid accumulation in 3T3-L1 adipocytes without affecting cell proliferation. Notably, compound 1 demonstrated a remarkable 60% and 90% reduction in lipid levels with 50 and 100 µM treatments, respectively. Oil Red O staining results indicated that compound 1 significantly inhibits the formation of lipid droplets, comparable to the effect of T863, an inhibitor of triglyceride used as a positive control, in adipocytes. Compound 1 had no effect on the regulators PPARγ, C/EBPα, and SREBF1 of adipocyte differentiation in 3T3-L1 preadipocytes, but compound 1 activated the fatty acid oxidation regulator, PPARα, compared to the lipogenic-induced control. It also suppressed fatty acid synthesis by downregulating the expression of fatty acid synthase (FAS). Finally, compound 1 induced the mRNA and protein levels of CPT1A, an initial marker of mitochondrial fatty acid oxidation in 3T3-L1. This finding substantiates the anti-lipogenic and lipolytic effects of procyanidin B2 (1) in 3T3-L1 preadipocytes, emphasizing its pivotal role in modulating obesity-related markers.
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Affiliation(s)
- Kyung Ah Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea; (K.A.K.); (J.B.); (S.L.)
| | | | - Jiwon Baek
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea; (K.A.K.); (J.B.); (S.L.)
| | - Soah Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea; (K.A.K.); (J.B.); (S.L.)
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Ki Sung Kang
- College of Korean Medicine, Gachon University, Seongnam 13120, Republic of Korea;
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea; (K.A.K.); (J.B.); (S.L.)
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Kim KA, Kang DM, Ko YJ, Ra MJ, Jung SM, Yu JN, Ahn MJ, Kim KH. Chaenomelin, a New Phenolic Glycoside, and Anti- Helicobacter pylori Phenolic Compounds from the Leaves of Salix chaenomeloides. PLANTS (BASEL, SWITZERLAND) 2024; 13:701. [PMID: 38475547 DOI: 10.3390/plants13050701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024]
Abstract
Salix chaenomeloides Kimura, commonly known as pussy willow, is a deciduous shrub and tree belonging to the Salicaceae family. The genus Salix spp. has been known as a healing herb for the treatment of fever, inflammation, and pain relief. The current study aimed to investigate the potential bioactive natural products from S. chaenomeloides leaves and evaluate their antibacterial activity against Helicobacter pylori. A phytochemical investigation of the ethanol (EtOH) extract of S. chaenomeloides leaves led to the isolation of 13 phenolic compounds (1-13) from the ethyl acetate (EtOAc) fraction, which showed antibacterial activity against H. pylori strain 51. The chemical structure of a new phenolic glycoside, chaenomelin (1), was established by a detailed analysis of 1D and 2D (1H-1H correlation spectroscopy (COSY), heteronuclear single-quantum coherence (HSQC), and heteronuclear multiple-bond correlation (HMBC)) nuclear magnetic resonance (NMR), high-resolution electrospray ionization mass spectroscopy (HR-ESIMS), and chemical reactions. The other known compounds were identified as 5-O-trans-p-coumaroyl quinic acid methyl ester (2), tremulacin (3), citrusin C (4), benzyl 3-O-β-d-glucopyranosyl-7-hydroxybenzoate (5), tremuloidin (6), 1-[O-β-d-glucopyranosyl(1→2)-β-d-glucopyranosyl]oxy-2-phenol (7), arbutin cinnamate (8), tremulacinol (9), catechol (10), 4-hydroxybenzaldehyde (11), kaempferol 3-rutinoside (12), and narcissin (13), based on the comparison of their NMR spectra with the reported data and liquid chromatography/mass spectrometry (LC/MS) analysis. The isolated compounds were evaluated for antibacterial activity against H. pylori strain 51. Among the isolates, 1-[O-β-d-glucopyranosyl(1→2)-β-d-glucopyranosyl]oxy-2-phenol (7) and arbutin cinnamate (8) exhibited antibacterial activity against H. pylori strain 51, with inhibitions of 31.4% and 33.9%, respectively, at a final concentration of 100 μM. These results were comparable to that of quercetin (38.4% inhibition), which served as a positive control. Generally, these findings highlight the potential of the active compounds 7 and 8 as antibacterial agents against H. pylori.
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Affiliation(s)
- Kyung Ah Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dong-Min Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Yoon-Joo Ko
- Laboratory of Nuclear Magnetic Resonance, National Center for Inter-University Research Facilities (NCIRF), Seoul National University, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Moon-Jin Ra
- Hongcheon Institute of Medicinal Herb, Hongcheon-gun 25142, Republic of Korea
| | - Sang-Mi Jung
- Hongcheon Institute of Medicinal Herb, Hongcheon-gun 25142, Republic of Korea
| | - Jeong-Nam Yu
- Nakdonggang National Institute of Biological Resources, Sangju 37242, Republic of Korea
| | - Mi-Jeong Ahn
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Wang Z, Yamano Y, Kawakami S, Al-Hamoud GA, Sugimoto S, Otsuka H, Matsunami K. New ψ-Santonin Derivatives from Crossostephium chinense and Their Anti-Proliferative Activities against Leishmania major and Human Cancer Cells A549. Molecules 2023; 28:8108. [PMID: 38138604 PMCID: PMC10746127 DOI: 10.3390/molecules28248108] [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: 11/11/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Previously, we reported two cytotoxic ψ-santonin-amino acid conjugates isolated from the EtOAc layer of Crossostephium chinense. However, a further phytochemical investigation seems to be required because of the few reports of similar derivatives. In this study, we targeted the 1-BuOH layer, which resulted in the isolation of seven new ψ-santonin derivatives (1-7) together with ten known compounds (8-17). The structures of 1-7 were elucidated based on spectroscopic methods, including 1D and 2D NMR experiments (1H, 13C, DEPT, COSY, HSQC, and HMBC), IR spectrum, and high-resolution electrospray ionization-mass spectrometry (HR-ESI-MS). The stereochemistry of new compounds was confirmed by NOESY and ECD calculations. All isolated compounds were evaluated by in vitro experiments for their anti-proliferative activities against Leishmania major, human lung cancer cell line A549, and Vero cells. As a result, most of the ψ-santonin derivatives, especially 1-5, showed significant cytotoxicity against L. major with a lower IC50 than the positive control we used (miltefosine).
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Affiliation(s)
- Zhichao Wang
- Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan; (Z.W.); (Y.Y.); (S.S.)
| | - Yoshi Yamano
- Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan; (Z.W.); (Y.Y.); (S.S.)
| | - Susumu Kawakami
- Graduate School of Pharmacy, Yasuda Women’s University, 6-13-1 Yasuhigashi, Asaminami-Ku, Hiroshima 731-0153, Japan; (S.K.); (H.O.)
| | | | - Sachiko Sugimoto
- Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan; (Z.W.); (Y.Y.); (S.S.)
| | - Hideaki Otsuka
- Graduate School of Pharmacy, Yasuda Women’s University, 6-13-1 Yasuhigashi, Asaminami-Ku, Hiroshima 731-0153, Japan; (S.K.); (H.O.)
| | - Katsuyoshi Matsunami
- Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan; (Z.W.); (Y.Y.); (S.S.)
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6
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Ye YS, Duan YT, Zhou Z, Thepkaysone K, Douangdeuane B, Xu G. Structurally Diverse Cytotoxic Polyphenols from Garcinia gracilis. JOURNAL OF NATURAL PRODUCTS 2023; 86:2206-2215. [PMID: 37650785 DOI: 10.1021/acs.jnatprod.3c00498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Thirty-five diverse polyphenols, belonging to seven structure classes, were isolated from Garcinia gracilis, a medicinal and edible plant sampled from Laos. The structures of nine new compounds, gargarcilones A-I (1-3, 5-7, 10, 12, and 17), were established using spectroscopic, X-ray diffraction, and experimental and calculated ECD methods. Additionally, we revised the stereochemical assignment of cochinchinoxanthone and cochinchinoxanthone C. The compounds were evaluated for antiproliferative activity against five human tumor cell lines (HL-60, A549, SMMC-7721, MDA-MB-231, and SW480). Compounds 1-4, 7, and 8 exhibited cytotoxic activity with IC50 values of 0.5-8.9 μM. Compound 3 significantly induced apoptosis in SMMC-7721 cells.
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Affiliation(s)
- Yan-Song Ye
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Yao-Tao Duan
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Zhuo Zhou
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Khamphanh Thepkaysone
- Institute of Traditional Medicine, Ministry of Health, Phonepapao Village, Sisattanack District, 856 Vientiane, Lao People's Democratic Republic
| | - Bounleuane Douangdeuane
- Institute of Traditional Medicine, Ministry of Health, Phonepapao Village, Sisattanack District, 856 Vientiane, Lao People's Democratic Republic
| | - Gang Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
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7
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Zhu H, Ren X, Huang Y, Su T, Yang L. Chemical Constituents of Euphorbia stracheyi Boiss (Euphorbiaceae). Metabolites 2023; 13:852. [PMID: 37512559 PMCID: PMC10384431 DOI: 10.3390/metabo13070852] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Euphorbia stracheyi Boiss was used for hemostasis, analgesia, and muscular regeneration in traditional Chinese medicine. To study the chemical constituents of E. stracheyi, the ethyl acetate part of the methanol extract of the whole plant was separated by silica gel, sephadex LH-20 column chromatography, and semi-preparative HPLC. The isolation led to the characterization of a new lathyrane type diterpenoid, euphostrachenol A (1), as well as eleven known compounds (2-11), including a lathyrane, three ingenane-type and two abietane-type diterpenoids, two ionones, and two flavonoids. The structures of these compounds were established using 1D- and 2D-NMR experiments, mass spectrometry, and X-ray crystallographic experiments. The MTT method was used to determine the cytotoxic activity of five cancer cell lines (Leukemia HL-60, lung cancer A-549, liver cancer SMMC-7721, breast cancer MCF-7, and colon cancer SW480) on the isolated compounds. However, only compound 4 showed moderate cytotoxicity against these cell lines, with IC50 values ranging from 10.28 to 29.70 μM, while the others were inactive. Our chemical investigation also confirmed the absence of jatrophane-type diterpenoids in the species, which may be related to its special habitat.
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Affiliation(s)
- Hui Zhu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Enviroment, Nanjing Forestry University, Nanjing 210037, China
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China
| | - Xiangxiang Ren
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Enviroment, Nanjing Forestry University, Nanjing 210037, China
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China
| | - Yanbo Huang
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China
| | - Tao Su
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Enviroment, Nanjing Forestry University, Nanjing 210037, China
| | - Lei Yang
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China
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Gyeltshen T, Deans BJ, Ho CC, Kilah NL, Smith JA, Bissember AC. Furanosesquiterpenes and Related Natural Products from Myoporum Species: Isolation and Semisynthesis. JOURNAL OF NATURAL PRODUCTS 2023; 86:1584-1595. [PMID: 37262439 DOI: 10.1021/acs.jnatprod.3c00278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Myoporum species are recognized as toxic plants. Essential oils from the leaves of these species contain furanosesquiterpenes, which comprise the active toxins. In this report, natural products isolation studies of three Myoporum species (M. insulare, M. parvifolium, and M. montanum) afforded two previously unreported furanosesquiterpenes (24 and 25) and three unprecedented γ-lactone-containing analogues (26-28), along with nine previously reported furanosesquiterpenes and five other natural products. Among the 14 furanosesquiterpenes and related compounds isolated in this study, we observed three distinct types of furanosesquiterpene structures isolated from each of these Myoporum species. Semisyntheses of four sesquiterpene natural products were completed from (-)-ngaione over two steps in each case. This included the synthesis of the lactam-containing sesquiterpene myoporumine A.
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Affiliation(s)
- Thinley Gyeltshen
- School of Natural Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Bianca J Deans
- School of Natural Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Curtis C Ho
- School of Natural Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Nathan L Kilah
- School of Natural Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Jason A Smith
- School of Natural Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Alex C Bissember
- School of Natural Sciences-Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
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Ccana-Ccapatinta GV, Padilla-Gonzalez GF, Ferreira PL, Monge M, Semir J, Groppo M, Da Costa FB. High-Resolution Liquid Chromatography-Mass Spectrometry-Based Metabolomics for the Classification of Chuquiraga (Barnadesioideae, Asteraceae): New Phenylpropanoid Derivatives as Chemical Markers for Chuquiraga spinosa. JOURNAL OF NATURAL PRODUCTS 2023; 86:683-693. [PMID: 36913505 DOI: 10.1021/acs.jnatprod.2c00603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Despite their relatively poorly investigated phytochemistry, species of the genus Chuquiraga are widely commercialized. The present study reports the use of a high-resolution liquid chromatography-mass spectrometry-based metabolomics approach coupled with exploratory and supervised multivariate statistical analyses for species classification and chemical marker identification of four species of Chuquiraga (C. jussieui, C. weberbaueri, C. spinosa, and Chuquiraga sp.) from Ecuador and Peru. Based on these analyses, a high percentage of correct classifications (87% to 100%) allowed the prediction of the taxonomic identity of Chuquiraga species. Through the metabolite selection process, several key constituents with the potential to be chemical markers were identified. Samples of C. jussieui displayed alkyl glycosides and triterpenoid glycosides as discriminating metabolites, while Chuquiraga sp. displayed high concentrations of p-hydroxyacetophenone, p-hydroxyacetophenone 4-O-glucoside, p-hydroxyacetophenone 4-O-(6-O-apiosyl)-glucoside, and quinic acid ester derivatives as the main metabolites. Caffeic acid was characteristic for C. weberbaueri samples, whereas C. spinosa displayed higher concentrations of the following new phenylpropanoid ester derivatives: 2-O-caffeoyl-4-hydroxypentanedioic acid (24), 2-O-p-coumaroyl-4-hydroxypentanedioic acid (34), 2-O-feruloyl-4-hydroxypentanedioic acid (46), 2,4-O-dicaffeoylpentanedioic acid (71), and 2-O-caffeoyl-4-O-feruloylpentanedioic acid (77).
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Affiliation(s)
- Gari V Ccana-Ccapatinta
- AsterBioChem Research Team, Laboratory of Pharmacognosy, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-903, Brazil
| | - Guillermo F Padilla-Gonzalez
- AsterBioChem Research Team, Laboratory of Pharmacognosy, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-903, Brazil
| | - Paola L Ferreira
- Laboratory of Plant Systematics, Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, USP, Ribeirão Preto 14040-901, Brazil
| | - Marcelo Monge
- Graduate Program of Plant Biology, Institute of Biology, University of Campinas, Campinas 13083-862, Brazil
| | - Joao Semir
- Graduate Program of Plant Biology, Institute of Biology, University of Campinas, Campinas 13083-862, Brazil
| | - Milton Groppo
- Laboratory of Plant Systematics, Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, USP, Ribeirão Preto 14040-901, Brazil
| | - Fernando B Da Costa
- AsterBioChem Research Team, Laboratory of Pharmacognosy, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-903, Brazil
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10
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An H, Thanh LN, Khanh LQ, Ryu SH, Lee S, Yeon SW, Lee HH, Turk A, Lee KY, Hwang BY, Lee MK. Characterization of Antioxidant and α-Glucosidase Inhibitory Compounds of Cratoxylum formosum ssp. pruniflorum and Optimization of Extraction Condition. Antioxidants (Basel) 2023; 12:antiox12020511. [PMID: 36830069 PMCID: PMC9952466 DOI: 10.3390/antiox12020511] [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: 01/27/2023] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
Cratoxylum formosum ssp. pruniflorum (Kurz.) Gogel (Guttiferae), called kuding tea, is widely distributed in Southeast Asia. In this study, the constituents and biological activity of C. formosum ssp. pruniflorum were investigated. Extract of its leaves, roots and stems showed antioxidant and α-glucosidase inhibitory activity. Interestingly, comparison of the metabolite profiles of leaves, roots and stems of C. formosum ssp. pruniflorum by LC-MS analysis showed a great difference between the roots and leaves, whereas the roots and stems were quite similar. Purification of the roots and leaves of C. formosum ssp. pruniflorum through various chromatographic techniques resulted in the isolation of 25 compounds. The structures of isolated compounds were elucidated on the basis of spectroscopic analysis as 18 xanthones, 5 flavonoids, a benzophenone and a phenolic compound. Among them, a xanthone (16) and a benzophenone (19) were first reported from nature. Evaluation of biological activity revealed that xanthones had a potent α-glucosidase inhibitory activity, while flavonoids were responsible for the antioxidant activity. To maximize the biological activity, yield and total phenolic content of C. formosum ssp. pruniflorum, extraction conditions such as extraction solvent, time and temperature were optimized using response surface methodology with Box-Behnken Design (BBD). Regression analysis showed a good fit of the experimental data, and the optimal condition was obtained as MeOH concentration in EtOAc, 88.1%; extraction time, 6.02 h; and extraction temperature 60.0 °C. α-Glucosidase inhibitory activity, yield and total phenolic content under the optimal condition were found to be 72.2% inhibition, 10.3% and 163.9 mg GAE/g extract, respectively. These results provide useful information about C. formosum ssp. pruniflorum as functional foods for oxidative stress-related metabolic diseases.
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Affiliation(s)
- Heewon An
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Le Nguyen Thanh
- Department of Medicinal Chemistry Technology, Institute of Marine Biochemistry, Vietnam Academy of Science & Technology (VAST), Hanoi 10000, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi 10000, Vietnam
| | - Le Quoc Khanh
- Hatinh Pharmaceutical Company (HADIPHAR), Ha Tinh 45000, Vietnam
| | - Se Hwan Ryu
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Solip Lee
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Sang Won Yeon
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Hak Hyun Lee
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Ayman Turk
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Ki Yong Lee
- College of Pharmacy, Korea University, Sejong 47236, Republic of Korea
| | - Bang Yeon Hwang
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Mi Kyeong Lee
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
- Correspondence: ; Tel.: +82-43-261-2818
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11
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LIN T, CHEN XL, WU GW, SHA LJ, WANG J, HU ZX, LIU HC. A simple method for distinguishing Dendrobium devonianum and Dendrobium officinale by ultra performance liquid chromatography-photo diode array detector. FOOD SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1590/fst.110122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Tao LIN
- Yunnan Academy of Agricultural Sciences, China
| | | | | | | | - Jing WANG
- Longling Agricultural Environmental Protection Monitoring Station, China
| | - Zheng-Xu HU
- Longling Agricultural Environmental Protection Monitoring Station, China
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Jang YS, Lee DE, Hong JH, Kim KA, Kim B, Cho YR, Ra MJ, Jung SM, Yu JN, An S, Kim KH. Phytochemical Investigation of Marker Compounds from Indigenous Korean Salix Species and Their Antimicrobial Effects. PLANTS (BASEL, SWITZERLAND) 2022; 12:104. [PMID: 36616234 PMCID: PMC9824127 DOI: 10.3390/plants12010104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/13/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Salix species, including willow trees, are distributed in the temperate regions of Asian countries, including South Korea. Willow trees are used to treat pain and inflammatory diseases. Due to the medicinal properties of willow trees, pharmacological studies of other Salix spp. have gained attention; however, only a few studies have investigated the phytochemicals of these species. As part of our ongoing natural product research to identify bioactive phytochemicals and elucidate their chemical structures from natural resources, we investigated the marker compounds from indigenous Korean Salix species, namely, Salix triandra, S. chaenomeloides, S. gracilistyla, S. koriyanagi, S. koreensis, S. pseudolasiogyne, S. caprea, and S. rorida. The ethanolic extract of each Salix sp. was investigated using high-performance liquid chromatography combined with thin-layer chromatography and liquid chromatography−mass spectrometry-based analysis, and marker compounds of each Salix sp. were isolated. The chemical structures of the marker compounds (1−8), 3-(4-hydroxyphenyl)propyl β-D-glucopyranoside (1), 2-O-acetylsalicin (2), 1-O-p-coumaroyl glucoside (3), picein (4), isograndidentatin B (5), 2′-O-acetylsalicortin (6), dihydromyricetin (7), and salicin (8) were elucidated via nuclear magnetic resonance spectroscopy and high-resolution liquid chromatography−mass spectrometry using ultrahigh-performance liquid chromatography coupled with a G6545B Q-TOF MS system with a dual electrospray ionization source. The identified marker compounds 1−8 were examined for their antimicrobial effects against plant pathogenic fungi and bacteria. Dihydromyricetin (7) exhibited antibacterial activity against Staphylococcus aureus, inducing 32.4% inhibition at a final concentration of 125 μg/mL with an MIC50 value of 250 μg/mL. Overall, this study isolated the marker compounds of S. triandra, S. chaenomeloides, S. gracilistyla, S. koriyanagi, S. koreensis, S. pseudolasiogyne, S. caprea, and S. rorida and identified the anti-Staphylococcus aureus bacterial compound dihydromyricetin.
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Affiliation(s)
- Yoon Seo Jang
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Da Eun Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Joo-Hyun Hong
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Kyung Ah Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Bora Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yeo Rang Cho
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Moon-Jin Ra
- Hongcheon Institute of Medicinal Herb, Hongcheon-gun 25142, Republic of Korea
| | - Sang-Mi Jung
- Hongcheon Institute of Medicinal Herb, Hongcheon-gun 25142, Republic of Korea
| | - Jeong-Nam Yu
- Nakdonggang National Institute of Biological Resources, Sangju 37242, Republic of Korea
| | - Seongpil An
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Department of Nano Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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13
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Elyasi L, Rosenholm JM, Jesmi F, Jahanshahi M. The Antioxidative Effects of Picein and Its Neuroprotective Potential: A Review of the Literature. Molecules 2022; 27:molecules27196189. [PMID: 36234724 PMCID: PMC9571929 DOI: 10.3390/molecules27196189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Neurodegenerative diseases (NDDs) are the main cause of dementia in the elderly, having no cure to date, as the currently available therapies focus on symptom remission. Most NDDs will progress despite treatment and eventually result in the death of the patient after several years of a burden on both the patient and the caregivers. Therefore, it is necessary to investigate agents that tackle the disease pathogenesis and can efficiently slow down or halt disease progression, with the hope of curing the patients and preventing further burden and mortality. Accordingly, recent research has focused on disease-modifying treatments with neuroregenerative or neuroprotective effects. For this purpose, it is necessary to understand the pathogenesis of NDDs. It has been shown that oxidative stress plays an important role in the damage to the central nervous system and the progression of neurodegenerative disorders. Furthermore, mitochondrial dysfunction and the accumulation of unfolded proteins, including beta-amyloid (Aβ), tau proteins, and α-synuclein, have been suggested. Accordingly, cellular and molecular studies have investigated the efficacy of several natural compounds (herbs and nutritional agents) for their neuroprotective and antioxidative properties. The most popular herbs suggested for the treatment and/or prevention of NDDs include Withania somnifera (ashwagandha), ginseng, curcumin, resveratrol, Baccopa monnieri, and Ginkgo biloba. In some herbs, such as ginseng, preclinical and clinical evidence are available for supporting its effectiveness; however, in some others, only cellular and animal studies are available. In line with the scant literature in terms of the effectiveness of herbal compounds on NDDs, there are also other herbal agents that have been disregarded. Picein is one of the herbal agents that has been investigated in only a few studies. Picein is the active ingredient of several herbs and can be thus extracted from different types of herbs, which makes it more available. It has shown to have anti-inflammatory properties in cellular and plant studies; however, to date, only one study has suggested its neuroprotective properties. Furthermore, some cellular studies have shown no anti-inflammatory effect of picein. Therefore, a review of the available literature is required to summarize the results of studies on picein. To date, no review study seems to have addressed this issue. Thus, in the present study, we gather the available information about the antioxidative and potential neuroprotective properties of picein and its possible effectiveness in treating NDDs. We also summarize the plants from which picein can be extracted in order to guide researchers for future investigations.
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Affiliation(s)
- Leila Elyasi
- Neuroscience Research Center, Department of Anatomy, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan 4917955315, Iran
- Correspondence: ; Tel./Fax: +98-17-32453515
| | - Jessica M. Rosenholm
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland
| | - Fatemeh Jesmi
- Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran 1415944911, Iran
| | - Mehrdad Jahanshahi
- Neuroscience Research Center, Department of Anatomy, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan 4917955315, Iran
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Meng X, Nan G, Shi B, Li W, Liu H, Lin R, Yang G, Zheng S. Investigation on the interaction between myricetin and dihydromyricetin with trypsin, α-chymotrypsin, lysozyme by spectroscopy and molecular docking methods. LUMINESCENCE 2022; 37:810-821. [PMID: 35289053 DOI: 10.1002/bio.4225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/07/2022] [Accepted: 03/09/2022] [Indexed: 11/09/2022]
Abstract
The interaction between myricetin and dihydromyricetin with trypsin, α-chymotrypsin and lysozyme was investigated using multispectral and molecular docking methods. The results of fluorescence quenching revealed that myricetin and dihydromyricetin could quench the intrinsic fluorescence of three different proteinases through a static quenching procedure. The binding constant and number of binding sites at different temperatures were measured. The thermodynamic parameters obtained at different temperatures showed van der Waals' interactions and hydrogen bonds played the main roles in the interaction of myricetin with trypsin and lysozyme, hydrophobic force was dominant both in myricetin with α-chymotrypsin interaction and dihydromyricetin with trypsin and lysozyme interaction, as for the electrostatic forces, it was the mainly driving force in dihydromyricetin binding to α-chymotrypsin. There was non-radiative energy transfer between three proteinases and myricetin or dihydromyricetin with high probability. The microenvironment of trypsin, α-chymotrypsin and lysozyme is changed. The docking studies revealed that myricetin and dihydromyricetin entered the hydrophobic cavity of three proteinases and formed hydrogen bond. The binding affinity of myricetin or dihydromyricetin is difference with the trypsin, α-chymotrypsin and lysozyme due to the different molecular structure.
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Affiliation(s)
- Xianxin Meng
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Guanjun Nan
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Bowen Shi
- Anesthesia Operation Center, Xi'an International Medical Center, Shaanxi, P.R. China
| | - Wanlu Li
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Henglin Liu
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Rong Lin
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Guangde Yang
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, P.R. China
| | - Shaohua Zheng
- Department of Anesthesiology and Operation, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, P.R. China
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15
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Kan J, Fu B, Zhou R, Zhou D, Huang Y, Zhao H, Zhang Y, Rong Y, Dong J, Xia L, Liu S, Huang Q, Wang N, Ning N, Zhang B, Zhang E. He-Chan Pian inhibits the metastasis of non-small cell lung cancer via the miR-205-5p-mediated regulation of the GREM1/Rap1 signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 94:153821. [PMID: 34752967 DOI: 10.1016/j.phymed.2021.153821] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 09/20/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND He-Chan Pian (HCP), a traditional Chinese medicinal formula, shows promising efficacy for the treatment of lung cancer. PURPOSE Gremlin (GREM1) plays an important role in gastrointestinal tumor metastasis; however, little is known about its role in lung cancer. We determined the mechanism underlying the protective effect of HCP against metastasis in a mouse model of non-small cell lung cancer (NSCLC) and demonstrated the role of GREM1. METHODS Ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS) was used to analyze the herbal components and metabolites from the serum of HCP-treated mice. The tumor, liver, and kidney were examined histologically, and the antitumor effects and toxicity of HCP were evaluated. Levels of epithelial-mesenchymal transition (EMT)-associated transcription factors were measured using western blotting in tumors from five groups (i.e., model, HCP [L], HCP [M], HCP [H], and positive control [cisplatin, DDP]). Differentially expressed proteins and genes were identified using protein chip and sequencing analyzes, respectively. Short hairpin RNAs and overexpression plasmids were introduced into cells to evaluate the effects of GREM1. To evaluate proliferation, migration, and invasion, the expression levels of proteins involved in the Rap1 pathway and EMT were measured in vitro. Xenograft tumors with overexpression-GREM1 (OE-GREM1) in A549 cells were examined for cell proliferation. A dual-luciferase assay was performed to verify the direct interaction of GREM1 with miR-205-5p in lung cancer. RESULTS Thirty-six ingredients and bioactive constituents detected in the serum of HCP-treated mice were identified as the key compounds involved in the inhibition of tumor growth. Animal experiments revealed that HCP significantly decreased tumor volumes and had no adverse effects on the liver or kidney or side effects. GREM1 upregulation was closely related to tumor metastasis and was regulated by miR-205-5p, as confirmed using a dual-luciferase reporter assay. OE-GREM1 promoted A549 cell migration and invasion, promoted EMT, and increased the expression of Rap1 pathway intermediaries, whereas shGREM1 had the opposite effects. Furthermore, the effects of OE-GREM1 on proliferation in the A549 xenograft mouse model were attenuated, although HCP has an inhibitory effect on tumors. CONCLUSION Our results suggest that HCP contributes to the inhibition of NSCLC metastasis via the Gremlin/Rap1 signaling pathway regulated by miR-205-5p.
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Affiliation(s)
- Jun Kan
- Department of VIP Region, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China; Department of Oncology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Biqian Fu
- Department of Oncology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen 518000, China
| | - Ruisheng Zhou
- Department of Oncology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Daihan Zhou
- Department of Oncology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yufang Huang
- Department of Oncology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Hongwei Zhao
- Department of Oncology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yunlong Zhang
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Yuming Rong
- Department of VIP Region, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Jun Dong
- Department of VIP Region, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Liangping Xia
- Department of VIP Region, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Shanshan Liu
- Guangzhou Baiyunshan Zhongyi Pharmaceutical Co., Ltd, Guangzhou 510530, China
| | - Qiuling Huang
- Guangzhou Baiyunshan Zhongyi Pharmaceutical Co., Ltd, Guangzhou 510530, China
| | - Nannan Wang
- Guangzhou Baiyunshan Zhongyi Pharmaceutical Co., Ltd, Guangzhou 510530, China
| | - Na Ning
- Guangzhou Baiyunshan Zhongyi Pharmaceutical Co., Ltd, Guangzhou 510530, China.
| | - Bei Zhang
- Department of VIP Region, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China.
| | - Enxin Zhang
- Department of Oncology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen 518000, China.
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16
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Aromatic Constituents from the Leaves of Actinidia arguta with Antioxidant and α-Glucosidase Inhibitory Activity. Antioxidants (Basel) 2021; 10:antiox10121896. [PMID: 34942998 PMCID: PMC8750355 DOI: 10.3390/antiox10121896] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/16/2021] [Accepted: 11/25/2021] [Indexed: 12/20/2022] Open
Abstract
As the leaf of Actinidia arguta has shown antioxidant activity, a study was conducted to identify the active ingredients. Forty-eight compounds were isolated from the leaves of A. arguta through various chromatographic techniques. Further characterization of the structures on the basis of 1D and 2D NMR and MS data identified several aromatic compounds, including phenylpropanoid derivatives, phenolics, coumarins, flavonoids and lignans. Among them, five compounds were newly reported, naturally occurring, and named argutosides A-D (1-4), which consist of phenylpropanoid glycosides that are conjugated with a phenolic moiety, and argutoside E (5), which is a coumarin glycoside that is conjugated with a phenylpropanoid unit. The isolated compounds showed good antioxidant and α-glucosidase inhibitory activity with differences in activity depending on the structures. Molecular docking analysis demonstrated the interaction between the hydroxyl and carbonyl groups of compounds 1 and 5 with α-glucosidase. Taken together, the leaves of A. arguta are rich in aromatic compounds with diverse structures. Therefore, the leaves of A. arguta and their aromatic components might be beneficial for oxidative stress and glucose-related diseases.
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17
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Liu Q, Kim SB, Jo YH, Ahn JH, Turk A, Kim DE, Chang BY, Kim SY, Jeong CS, Hwang BY, Park SY, Lee MK. Curcubinoyl flavonoids from wild ginseng adventitious root cultures. Sci Rep 2021; 11:12212. [PMID: 34108581 PMCID: PMC8190163 DOI: 10.1038/s41598-021-91850-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 05/25/2021] [Indexed: 11/19/2022] Open
Abstract
Wild ginseng (Panax ginseng) adventitious root cultures were prepared by elicitation using methyl jasmonate and investigated further to find new secondary metabolites. Chromatographic fractionation of wild ginseng adventitious root cultures led to the isolation of eleven compounds. The chemical structures of isolated compounds were identified as four known flavanone derivatives (1–4), one new curcubinoyl derivative, jasmogin A (5) and six new curcubinoyl-flavanone conjugates, jasmoflagins A-F (6–11) by extensive spectroscopic analysis. Newly isolated curcubinoyl derivatives showed inhibitory activity against lipopolysaccharide-stimulated nitric oxide production in RAW 264.7 macrophages. Therefore, our present study suggested that elicitor stimulated plant cell cultures might contribute to the production of new metabolites.
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Affiliation(s)
- Qing Liu
- College of Pharmacy, Chungbuk National University, Cheongju, 28160, Republic of Korea
| | - Seon Beom Kim
- College of Pharmacy, Chungbuk National University, Cheongju, 28160, Republic of Korea
| | - Yang Hee Jo
- College of Pharmacy, Chungbuk National University, Cheongju, 28160, Republic of Korea
| | - Jong Hoon Ahn
- College of Pharmacy, Chungbuk National University, Cheongju, 28160, Republic of Korea
| | - Ayman Turk
- College of Pharmacy, Chungbuk National University, Cheongju, 28160, Republic of Korea
| | - Da Eun Kim
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Bo Yoon Chang
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Sung Yeon Kim
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Cheol-Seung Jeong
- Department of Horticultural Science, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Bang Yeon Hwang
- College of Pharmacy, Chungbuk National University, Cheongju, 28160, Republic of Korea
| | - So-Young Park
- Department of Horticultural Science, Chungbuk National University, Cheongju, 28644, Republic of Korea.
| | - Mi Kyeong Lee
- College of Pharmacy, Chungbuk National University, Cheongju, 28160, Republic of Korea.
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18
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Tawfeek N, Mahmoud MF, Hamdan DI, Sobeh M, Farrag N, Wink M, El-Shazly AM. Phytochemistry, Pharmacology and Medicinal Uses of Plants of the Genus Salix: An Updated Review. Front Pharmacol 2021; 12:593856. [PMID: 33643045 PMCID: PMC7908037 DOI: 10.3389/fphar.2021.593856] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 01/07/2021] [Indexed: 01/18/2023] Open
Abstract
The Willows (genus Salix), with more than 330–500 species and 200 hybrids, are trees, shrubs or prostrate plants that are widely distributed in Africa, North America, Europe, and Asia. The genus is traditionally used in folk medicine and represents a valuable source of biologically active compounds among them salicin, a prodrug for salicylic acid. Altogether, 322 secondary metabolites were characterized in the genus including flavonoids 94) (flavonols, flavones, flavanones, isoflavones, flavan-3-ols (catechins and procyanidins), chalcones, dihydrochalcone, anthocyanins, dihydroflavonols), phenolic glycosides (76), organic acids (28), and non-phenolic glycosides (17), sterols and terpenes (17), simple phenolics 13) and lignans 7) in addition to volatiles and fatty acids (69). Furthermore, willows exert analgesic, anti-inflammatory, antioxidant, anticancer, cytotoxic, antidiabetic, antimicrobial, antiobesity, neuroprotective and hepatoprotective activities. The current review provides an updated summary of the importance of willows, their chemical composition and pharmacological activities.
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Affiliation(s)
- Nora Tawfeek
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Heidelberg, Germany.,Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Mona F Mahmoud
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Dalia I Hamdan
- Department of Pharmacognosy, Faculty of Pharmacy, Menoufia University, Shibin Elkom, Egypt
| | - Mansour Sobeh
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Heidelberg, Germany.,AgroBioSciences Research Division, Mohammed VI Polytechnic University, Ben-Guerir, Morocco
| | - Nawaal Farrag
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Michael Wink
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Heidelberg, Germany
| | - Assem M El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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19
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Rocha MP, Campana PRV, Pádua RM, Souza Filho JD, Ferreira D, Braga FC. (3,3″)-Linked Biflavanones from Ouratea spectabilis and Their Effects on the Release of Proinflammatory Cytokines in THP-1 Cells. JOURNAL OF NATURAL PRODUCTS 2020; 83:1891-1898. [PMID: 32484349 DOI: 10.1021/acs.jnatprod.0c00074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ouratea spectabilis is an arborous species traditionally used in Brazil as an anti-inflammatory agent. Four new (3,3″)-linked biflavanone O-methyl ethers, named ouratein A (1), B (2), C (3), and D (4), were isolated from the bark extract of the species. Ouratein A (1) is an enantiomer of neochamagesmine A, which has never been described before. The structures were elucidated by extensive spectroscopic data analyses, whereas their absolute configurations were defined by electronic circular dichroism data. Ouratein D (4) inhibited in vitro the release of the pro-inflammatory cytokine CCL2 by lipopolysaccharide-stimulated THP-1 cells (IC50 of 3.1 ± 1.1 μM), whereas TNF and IL-1β release were not reduced by any of the biflavanones. These findings show ouratein D (4) as a selective CCL2 inhibitor, which may have potential for the development of new anti-inflammatory agents to prevent or treat cardiovascular diseases.
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Affiliation(s)
- Marina P Rocha
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Priscilla R V Campana
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Rodrigo M Pádua
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - José D Souza Filho
- Department of Chemistry, Institute of Exact Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil
| | - Daneel Ferreira
- Department of BioMolecular Sciences, Division of Pharmacognosy, School of Pharmacy, The University of Mississippi, University, Mississippi 38677, United States
| | - Fernão C Braga
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil
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20
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ZAIMA K, KOGA R, MOTEGI R, SATO H, KITANAKA S, ITO Y, SHINOMIYA K. Application of High-Speed Countercurrent Chromatography to the Separation of Flavanonol, Phenylcoumaran and Flavonolignans in <i>Silybum marianum</i>. CHROMATOGRAPHY 2020. [DOI: 10.15583/jpchrom.2020.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | | | | | | | | | - Yoichiro ITO
- Laboratory of Bioseparation Technology, Biochemistry and Biophysics Center, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health
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21
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Huang QP, Guo K, Liu Y, Liu YC, Li WY, Geng H, Wang Y, Li SH. Diterpenoids and Flavonoids from the Twigs of Cephalotaxus fortunei var. alpina. Chem Biodivers 2020; 17:e2000210. [PMID: 32329218 DOI: 10.1002/cbdv.202000210] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/23/2020] [Indexed: 12/18/2022]
Abstract
Three new diterpenoids (a cephalotane, an abietane and a 9(10→20)-abeo-abietane) and one new flavonoid, together with 11 known compounds, were isolated from the twigs of Cephalotaxus fortunei var. alpina. The new compounds were identified by comprehensive spectroscopic (including 1D and 2D-NMR and HR-ESI-MS) analysis. Anti-inflammatory, immunosuppressive and cytotoxic activities of three new compounds were evaluated. 3β,20-epoxyabieta-8,11,13-triene-3α,12-diol showed weak cytotoxicity against tumor cell lines NCI-H1975, HepG2, MCF-7, while fortalpinoid R and 3-acetonyl-3,5,7,4'-tetrahydroxy-2-methoxyflavanone were not active at 80 μM. None of these compounds showed anti-inflammatory and immunosuppressive activities.
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Affiliation(s)
- Qing-Pu Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Kai Guo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yan Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China
| | - Wen-Yuan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hao Geng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ying Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China
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Yu Y, Pauli GF, Huang L, Gan LS, van Breemen RB, Li D, McAlpine JB, Lankin DC, Chen SN. Classification of Flavonoid Metabolomes via Data Mining and Quantification of Hydroxyl NMR Signals. Anal Chem 2020; 92:4954-4962. [PMID: 32108467 PMCID: PMC7442116 DOI: 10.1021/acs.analchem.9b05084] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Utilizing the distinct HMBC cross-peak patterns of lower-field range (LFR; 11.80-14.20 ppm) hydroxyl singlets, presented NMR methodology characterizes flavonoid metabolomes both qualitatively and quantitatively. It enables simultaneous classification of the structural types of 5-OH flavonoids and biogenetically related 2'-OH chalcones, as well as quantification of individual metabolites from 1H NMR spectra, even in complex mixtures. Initially, metabolite-specific LFR 1D 1H and 2D HMBC patterns were established via literature mining and experimental data interpretation, demonstrating that LFR HMBC patterns encode the different structural types of 5-OH flavonoids/2'-OH chalcones. Taking advantage of the simplistic multiplicity of the H,H-uncoupled LFR 5-/2'-OH singlets, individual metabolites could subsequently be quantified by peak fitting quantitative 1H NMR (PF-qHNMR). Metabolomic analysis of enriched fractions from three medicinal licorice (Glycyrrhiza) species established proof-of-concept for distinguishing three major structural types and eight subtypes in biomedical applications. The method identified 15 G. uralensis (GU) phenols from the six possible subtypes of 5,7-diOH (iso)flav(an)ones with 6-, 8-, and nonprenyl substitution, including the new 6-prenyl-licoisoflavanone (1) and two previously unknown compounds (4 and 7). Relative (100%) qNMR established quantitative metabolome patterns suitable for species discrimination and plant metabolite studies. Absolute qNMR with combined external and internal (solvent) calibration (ECIC) identified and quantified 158 GU metabolites. HMBC-supported qHNMR analysis of flavonoid metabolomes ("flavonomics") empowers the exploration of structure-abundance-activity relationships of designated bioactivity. Its ability to identify and quantify numerous metabolites simultaneously and without identical reference materials opens new avenues for natural product discovery and botanical quality control and can be adopted to other flavonoid- and chalcone-containing taxa.
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Affiliation(s)
| | | | | | - Li-She Gan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | | | - Dianpeng Li
- Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China
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Ramos PAB, Moreirinha C, Silva S, Costa EM, Veiga M, Coscueta E, Santos SAO, Almeida A, Pintado MM, Freire CSR, Silva AMS, Silvestre AJD. The Health-Promoting Potential of Salix spp. Bark Polar Extracts: Key Insights on Phenolic Composition and In Vitro Bioactivity and Biocompatibility. Antioxidants (Basel) 2019; 8:antiox8120609. [PMID: 31801290 PMCID: PMC6943414 DOI: 10.3390/antiox8120609] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/21/2019] [Accepted: 11/26/2019] [Indexed: 01/15/2023] Open
Abstract
Salix spp. have been exploited for energy generation, along with folk medicine use of bark extracts for antipyretic and analgesic benefits. Bark phenolic components, rather than salicin, have demonstrated interesting bioactivities, which may ensure the sustainable bioprospection of Salix bark. Therefore, this study highlights the detailed phenolic characterization, as well as the in vitro antioxidant, anti-hypertensive, Staphylococcus aureus growth inhibitory effects, and biocompatibility of Salix atrocinerea Brot., Salix fragilis L., and Salix viminalis L. bark polar extracts. Fifteen phenolic compounds were characterized by ultra-high-performance liquid chromatography-ultraviolet detection-mass spectrometry analysis, from which two flavan-3-ols, an acetophenone, five flavanones, and a flavonol were detected, for the first time, as their bark components. Salix bark extracts demonstrated strong free radical scavenging activity (5.58–23.62 µg mL−1 IC50 range), effective inhibition on angiotensin-I converting enzyme (58–84%), and S. aureus bactericidal action at 1250–2500 µg mL−1 (6–8 log CFU mL−1 reduction range). All tested Salix bark extracts did not show cytotoxic potential against Caco-2 cells, as well as S. atrocinerea Brot. and S. fragilis L. extracts at 625 and 1250 µg mL−1 against HaCaT and L929 cells. These valuable findings can pave innovative and safer food, nutraceutical, and/or cosmetic applications of Salix bark phenolic-containing fractions.
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Affiliation(s)
- Patrícia A. B. Ramos
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (P.A.B.R.); (C.M.); (S.A.O.S.); (C.S.R.F.); (A.M.S.S.)
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Catarina Moreirinha
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (P.A.B.R.); (C.M.); (S.A.O.S.); (C.S.R.F.); (A.M.S.S.)
| | - Sara Silva
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal; (S.S.); (E.M.C.); (M.V.); (E.C.); (M.M.P.)
| | - Eduardo M. Costa
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal; (S.S.); (E.M.C.); (M.V.); (E.C.); (M.M.P.)
| | - Mariana Veiga
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal; (S.S.); (E.M.C.); (M.V.); (E.C.); (M.M.P.)
| | - Ezequiel Coscueta
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal; (S.S.); (E.M.C.); (M.V.); (E.C.); (M.M.P.)
| | - Sónia A. O. Santos
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (P.A.B.R.); (C.M.); (S.A.O.S.); (C.S.R.F.); (A.M.S.S.)
| | - Adelaide Almeida
- Biology Department and CESAM—Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - M. Manuela Pintado
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal; (S.S.); (E.M.C.); (M.V.); (E.C.); (M.M.P.)
| | - Carmen S. R. Freire
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (P.A.B.R.); (C.M.); (S.A.O.S.); (C.S.R.F.); (A.M.S.S.)
| | - Artur M. S. Silva
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (P.A.B.R.); (C.M.); (S.A.O.S.); (C.S.R.F.); (A.M.S.S.)
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Armando J. D. Silvestre
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (P.A.B.R.); (C.M.); (S.A.O.S.); (C.S.R.F.); (A.M.S.S.)
- Correspondence: ; Tel.: +351-234-370-711
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Liu D, Mao Y, Ding L, Zeng XA. Dihydromyricetin: A review on identification and quantification methods, biological activities, chemical stability, metabolism and approaches to enhance its bioavailability. Trends Food Sci Technol 2019; 91:586-597. [PMID: 32288229 PMCID: PMC7127391 DOI: 10.1016/j.tifs.2019.07.038] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/21/2019] [Accepted: 07/18/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Dihydromyricetin (DMY) is an important plant flavonoid, which has received great attention due to its health-benefiting activities, including antioxidant, antimicrobial, anti-inflammatory, anticancer, antidiabetic and neuroprotective activities. DMY capsules have been sold in US as a nutraceutical supplement to prevent alcoholic hangovers. The major disadvantage associated with DMY is its chemical instability and poor bioavailability caused by the combined effects of its low solubility and poor membrane permeability. This limits its practical use in the food and pharmaceutical fields. SCOPE AND APPROACH The present paper gives an overview of the current methods for the identification and quantification of DMY. Furthermore, recent findings regarding the main biological properties and chemical stability of DMY, the metabolism of DMY as well as different approaches to increase DMY bioavailability in both aqueous and lipid phases are discussed. KEY FINDINGS AND CONCLUSIONS Current trends on identification and quantification of DMY have been focused on spectral and chromatographic techniques. Many factors such as heat, pH, metal ions, could affect the chemical stability of DMY. Despite the diverse biological effects of DMY, DMY faces with the problem of poor bioavailability. Utilization of different delivery systems including solid dispersion, nanocapsule, microemuslion, cyclodextrin inclusion complexes, co-crystallization, phospholipid complexes, and chemical or enzymatic acylation has the potential to improve both the solubility and bioavailability. DMY digested in laboratory animals undergoes reduction, dehydroxylation, methylation, glucuronidation, and sulfation. Novel DMY delivery systems and basic pharmacokinetic studies of encapsulated DMY on higher animals and humans might be required in the future.
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Affiliation(s)
- Dan Liu
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
- Corresponding author. Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China.
| | - Yiqin Mao
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Lijun Ding
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Xin-An Zeng
- South China University of Technology, School of Food Science & Engineering, Guangzhou, 510640, Guangdong, PR China
- Corresponding author
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25
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Two New Flavonoids from the Nuts of Areca catechu. Molecules 2019; 24:molecules24162862. [PMID: 31394749 PMCID: PMC6721780 DOI: 10.3390/molecules24162862] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 01/16/2023] Open
Abstract
Two new flavonoids, calquiquelignan M (1), calquiquelignan N (2), along with nine known compounds (3–11), were isolated from the nuts of Areca catechu (Palmae). The new structures, including absolute configurations, were established by a combination of spectroscopic data and electronic circular dichroism (ECD) calculation. The known compounds were identified by comparing their spectroscopic data with reported in the literature. The flavonoids compounds (1–8) were evaluated for their cytotoxicity activities against three human cancer cell lines. Compounds 1 and 2 exhibited a moderate cytotoxic activity against HepG2 cell lines with IC50 values of 49.8 and 53.6 μM, respectively.
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27
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Mennai I, Hanfer M, Esseid C, Benayache S, Ameddah S, Menad A, Benayache F. Chemical composition, in vitro antiparasitic, antimicrobial and antioxidant activities of Frankenia thymifolia Desf. Nat Prod Res 2019; 34:3363-3368. [DOI: 10.1080/14786419.2018.1561685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Imad Mennai
- Unité de recherche: Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques, Université Frères Mentouri, Constantine, Algérie
| | - Mourad Hanfer
- Laboratoire de Biologie et Environnement, Université Frères Mentouri, Constantine, Algérie
| | - Chahrazed Esseid
- Unité de recherche: Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques, Université Frères Mentouri, Constantine, Algérie
| | - Samir Benayache
- Unité de recherche: Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques, Université Frères Mentouri, Constantine, Algérie
| | - Souad Ameddah
- Laboratoire de Biologie et Environnement, Université Frères Mentouri, Constantine, Algérie
| | - Ahmed Menad
- Laboratoire de Biologie et Environnement, Université Frères Mentouri, Constantine, Algérie
| | - Fadila Benayache
- Unité de recherche: Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques, Université Frères Mentouri, Constantine, Algérie
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Kim JG, Le TPL, Hong HR, Han JS, Ko JH, Lee SH, Lee MK, Hwang BY. Nitric Oxide Inhibitory Constituents from the Fruits of Amomum tsao-ko. ACTA ACUST UNITED AC 2019. [DOI: 10.20307/nps.2019.25.1.76] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jun Gu Kim
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Thi Phuong Linh Le
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Hye Ryeong Hong
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Jae Sang Han
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Jun Hwi Ko
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Seung Hyun Lee
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Mi Kyeong Lee
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Bang Yeon Hwang
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
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Li X, Yao Z, Jiang X, Sun J, Ran G, Yang X, Zhao Y, Yan Y, Chen Z, Tian L, Bai W. Bioactive compounds from Cudrania tricuspidata: A natural anticancer source. Crit Rev Food Sci Nutr 2018; 60:494-514. [PMID: 30582344 DOI: 10.1080/10408398.2018.1541866] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The tumor is becoming a critical threat to our lives in these years. Searching for antitumor substances from natural products is a great interest of scientists. Cudrania tricuspidata (C. tricuspidata) is a regional plant containing 158 flavonoids and 99 xanthones, and others ingredients with favorable bioactivity. This review comprehensively analyzes the antitumor compounds from C. tricuspidata against different tumors, and 78 flavonoids plus xanthones are considered as underlying antineoplastic. Importantly, the structure of preylation groups is the primary source of antitumor activity among 45 flavonoids plus xanthones, which could be a direction of structural modification for a better antitumor ability. Additionally, the fruits are also preferable sources of antitumor compounds compared to the roots and barks due to the abundant isoflavones and sustainability. However, many studies only focused on the cells viability inhibition of the compounds, the underlying molecular mechanisms, and the intracellular targets remain ambiguous. In conclusion, C. tricuspidata has a great potential for anti-tumor prevention or therapy, but more attention should be paid to deeper research in vitro and in vivo models.
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Affiliation(s)
- Xusheng Li
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Zilan Yao
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Xinwei Jiang
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Jianxia Sun
- >Department of Food Science and Engineering, Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, PR China
| | - Guojing Ran
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Xuan Yang
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Yaqi Zhao
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Ying Yan
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Zisheng Chen
- Department of Respiratory Medicine, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, PR China
| | - Lingmin Tian
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Weibin Bai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
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Sakuranetin downregulates inducible nitric oxide synthase expression by affecting interleukin-1 receptor and CCAAT/enhancer-binding protein β. J Nat Med 2018; 73:353-368. [PMID: 30467676 DOI: 10.1007/s11418-018-1267-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 11/07/2018] [Indexed: 12/31/2022]
Abstract
Pruni Cortex is a herbal drug from the bark of the Japanese flowering cherries, Prunus jamasakura or Prunus verecunda, and is included in the traditional Japanese herbal (Kampo) formula Jumihaidokuto, which is administered orally to patients suffering from inflammatory skin diseases. The flavanones contained in Pruni Cortex (e.g., sakuranetin and naringenin) have potent anti-inflammatory, anti-allergic, and anti-microbial activities. Although the effects of Pruni Cortex on skin disease have been well studied, reports regarding its pharmacological effects on the liver are limited. In this study, we extracted the bark of Prunus jamasakura and purified it to isolate the pharmacologically active constituents by monitoring nitric oxide (NO) production in rat hepatocytes that were treated with the pro-inflammatory cytokine, interleukin (IL)-1β. Sakuranetin and (-)-naringenin, which were present in an ethyl acetate-soluble fraction of the bark extract, significantly inhibited NO induction and inducible nitric oxide synthase (iNOS) expression. These two flavanones decreased the expression of type 1 IL-1 receptor gene and phosphorylation of Akt, also known as protein kinase B, which is regulated by phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K). Furthermore, sakuranetin decreased the phosphorylation of the activator isoforms of CCAAT/enhancer-binding protein β (C/EBPβ), which synergistically activates the transcription of the iNOS gene with nuclear factor κB (NF-κB). Therefore, sakuranetin inhibited the co-activating activity of C/EBPβ with NF-κB, leading to the suppression of iNOS gene expression in hepatocytes. Taken together, sakuranetin in Pruni Cortex downregulated the iNOS gene by inhibiting PI3K/Akt signal transduction and the phosphorylation of C/EBPβ. These results imply that sakuranetin may be primarily responsible for the anti-inflammatory effects of Pruni Cortex in the liver.
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Zhang PM, Wu ZB, Zhang C, Zeng KW, Jiang Y, Tu PF. Two new chromene derivatives from Artemisia songarica. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2018; 20:943-950. [PMID: 30417661 DOI: 10.1080/10286020.2018.1497017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 07/02/2018] [Indexed: 06/09/2023]
Abstract
Two new chromene derivatives, songaricachromenes A (1) and B (2), were isolated from Artemisia songarica, along with 10 known compounds (3-12). The structures and stereochemistry of the new compounds were elucidated by analyses of the NMR, MS, and electronic circular dichroism (ECD) data. All the isolates (1-12) were evaluated for their NO inhibitory effects on LPS-stimulated BV-2 microglial cells.
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Affiliation(s)
- Pu-Ming Zhang
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
| | - Zhi-Bo Wu
- b Alashan League Institute of Forestry Sand Control , Alashan 750306 , China
| | - Chen Zhang
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
| | - Ke-Wu Zeng
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
| | - Yong Jiang
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
| | - Peng-Fei Tu
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences , Peking University , Beijing 100191 , China
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Ma SG, Wang RB, Li WR, Liu YB, Qu J, Li Y, Wang XJ, Xu S, Yu SS. New C-2 diastereomers of flavanone glycosides conjugated with 3-hydroxy-3-methylglutaric acid from the pericarp of Citrus grandis (L.) Osbeck. Bioorg Chem 2018; 80:519-524. [DOI: 10.1016/j.bioorg.2018.06.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 06/16/2018] [Accepted: 06/18/2018] [Indexed: 11/29/2022]
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33
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Rizk MZ, Abo-El-Matty DM, Aly HF, Abd-Alla HI, Saleh SM, Younis EA, Elnahrawy AM, Haroun AA. Therapeutic activity of sour orange albedo extract and abundant flavanones loaded silica nanoparticles against acrylamide-induced hepatotoxicity. Toxicol Rep 2018; 5:929-942. [PMID: 30294554 PMCID: PMC6170219 DOI: 10.1016/j.toxrep.2018.08.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 08/08/2018] [Accepted: 08/29/2018] [Indexed: 12/20/2022] Open
Abstract
The current research aims to demonstrate the therapeutic effect of sour orange albedo extract (SOAE) and two flavanones loaded-tetraethylorthosilicate (TEOS) using sol-gel technique, in adose100 mg/kg body weight taken orally or45 days against acrylamide (ACR)toxicity in rats. This was achieved through measuring the activities of specific biochemical parameters related to liver functions in tissue of ACR intoxicated rats as compared to normal one. Liver functions included alanine and aspartate aminotransferases, antioxidants and oxidative stress biomarkers; superoxide dismutase, catalase, glutathione and lipid peroxide (malondialdehyde, MDA). Moreover, histological examination of liver was performed to confirm the biochemical findings. The present results clearly indicated disturbances in all biochemical parameters, such as increase in the liver function enzyme activities and MDA level. Results of ATPase enzyme activities revealed significant decrease in ACR intoxicated rats and liver biomarker enzymes declared significant decrease. On the other hand, treatment of intoxicated rats with the previous different nano-particles natural product demonstrated improvement in all biochemical parameters under investigation.
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Affiliation(s)
- M Z Rizk
- Therapeutic Chemistry Department, National Research Centre, Dokki12622, Giza, Egypt
| | - D M Abo-El-Matty
- Biochemistry Department, Faculty of Pharmacy, Suez Canal University, Ismalia, Egypt
| | - H F Aly
- Therapeutic Chemistry Department, National Research Centre, Dokki12622, Giza, Egypt
| | - H I Abd-Alla
- Chemistry of Natural Compounds Department, National Research Centre, Dokki12622, Giza, Egypt
| | - S M Saleh
- Biochemistry Department, Faculty of Pharmacy, Suez Canal University, Ismalia, Egypt
| | - E A Younis
- Therapeutic Chemistry Department, National Research Centre, Dokki12622, Giza, Egypt
| | - A M Elnahrawy
- Department of Solid State Physics, National Research Centre, Dokki 12622,Giza, Egypt
| | - A A Haroun
- Chemical Industries Res Division, National Research Centre, Dokki12622, Giza, Egypt
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Zhao CC, Shen J, Chen J, Shao JH, Li KH, Gu WY, Miao BJ. Phenolic glycoside constituents from Brassica rapa flowers and their α-glucosidase inhibitory activity. Nat Prod Res 2018; 33:3398-3403. [DOI: 10.1080/14786419.2018.1479704] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chun-Chao Zhao
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Jie Shen
- Joint International Research Laboratory of Agriculture & Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Jia Chen
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, China
| | - Jian-Hua Shao
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, China
| | - Ke-Huan Li
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, China
| | - Wen-Yan Gu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, China
| | - Ben-Jie Miao
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, China
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Parent GJ, Giguère I, Mageroy M, Bohlmann J, MacKay JJ. Evolution of the biosynthesis of two hydroxyacetophenones in plants. PLANT, CELL & ENVIRONMENT 2018; 41:620-629. [PMID: 29314043 DOI: 10.1111/pce.13134] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 12/15/2017] [Accepted: 12/16/2017] [Indexed: 06/07/2023]
Abstract
Acetophenones are phenolic metabolites of plant species. A metabolic route for the biosynthesis and release of 2 defence-related hydroxyacetophenones in white spruce (Picea glauca) was recently proposed to involve 3 phases: (a) biosynthesis of the acetophenone aglycons catalysed by a currently unknown set of enzymes, (b) formation and accumulation of the corresponding glycosides catalysed by a glucosyltransferase, and (c) release of the aglycons catalysed by a glucosylhydrolase (PgβGLU-1). We tested if this biosynthetic model is conserved across Pinaceae and land plant species. We assayed and surveyed the literature and sequence databases for possible patterns of the presence of the acetophenone aglycons piceol and pungenol and their glucosides, as well as sequences and expression of Pgβglu-1 orthologues. In the Pinaceae, the 3 phases of the biosynthetic model are present and differences in expression of Pgβglu-1 gene orthologues explain some of the interspecific variation in hydroxyacetophenones. The phylogenetic signal in the metabolite phenotypes was low across species of 6 plant divisions. Putative orthologues of PgβGLU-1 do not form a monophyletic group in species producing hydroxyacetophenones. The biosynthetic model for acetophenones appears to be conserved across Pinaceae, whereas convergent evolution has led to the production of acetophenone glucosides across land plants.
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Affiliation(s)
- Geneviève J Parent
- Centre d'étude de la forêt, Département des sciences du bois et de la forêt, Université Laval, Québec City, Québec, G1V 0A6, Canada
- Institut de biologie intégrative et des systèmes, Université Laval, Québec City, Québec, G1V 0A6, Canada
- Department of Plant Sciences, University of Oxford, Oxford, OX1 3RB, UK
| | - Isabelle Giguère
- Centre d'étude de la forêt, Département des sciences du bois et de la forêt, Université Laval, Québec City, Québec, G1V 0A6, Canada
- Institut de biologie intégrative et des systèmes, Université Laval, Québec City, Québec, G1V 0A6, Canada
| | - Melissa Mageroy
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, V6T 1Z4, Canada
- Norwegian Institute for Bioeconomy Research, Ås, 1433, Norway
| | - Joerg Bohlmann
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, V6T 1Z4, Canada
| | - John J MacKay
- Centre d'étude de la forêt, Département des sciences du bois et de la forêt, Université Laval, Québec City, Québec, G1V 0A6, Canada
- Institut de biologie intégrative et des systèmes, Université Laval, Québec City, Québec, G1V 0A6, Canada
- Department of Plant Sciences, University of Oxford, Oxford, OX1 3RB, UK
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Ro Lee K, Sub Kim C, Subedi L, Oh J, Yeou Kim S, Un Choi S. A New Phenolic Compound from Salix glandulosa. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mohamed EI, Zaki MA, Chaurasiya ND, Owis AI, AbouZid S, Wang YH, Avula B, Seida AA, Tekwani BL, Ross SA. Monoamine oxidases inhibitors from Colvillea racemosa: Isolation, biological evaluation, and computational study. Fitoterapia 2017; 124:217-223. [PMID: 29154867 DOI: 10.1016/j.fitote.2017.11.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/09/2017] [Accepted: 11/13/2017] [Indexed: 10/18/2022]
Abstract
Bioassay-guided fractionation and chemical investigation of Colvillea racemosa stems led to identification of two new α, β-dihydroxydihydrochalcones, colveol A (1) and colveol B (2) along with fifteen known compounds. The structures were elucidated via interpretation of spectroscopic data. The absolute configurations of the dihydrochalcones 1 and 2 were assigned by a combination of chemical modification and electronic circular dichroism data. The isolated compounds were evaluated for their inhibition activity toward recombinant human monoamine oxidases (rhMAO-A and -B). Compound 1 demonstrated preferential inhibition against hMAO-A isoenzyme (IC50 0.62μM, SIA/B 0.02) while S-naringenin (13) and isoliquiritigein (15) demonstrated preferential hMAO-B inhibition (IC50 0.27 and 0.51μM, SIA/B 31.77 and 44.69, respectively). Fisetin (11) showed inhibition against hMAO-A with IC50 value of 4.62μM and no inhibitory activity toward hMAO-B up to 100μM. Molecular docking studies for the most active compounds were conducted to demonstrate the putative binding modes. It suggested that 1 interacts with Gln215, Ala111, Phe352, and Phe208 amino acid residues which have a role in the orientation and stabilization of the inhibitor binding to hMAO-A, while S-naringenin (13) occupies both entrance and substrate cavities and interacts with Tyr326, a critical residue in inhibitor recognition in hMAO-B.
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Affiliation(s)
- Enas I Mohamed
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, MS 38677, United States; Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Mohamed A Zaki
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, MS 38677, United States; Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Narayan D Chaurasiya
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, MS 38677, United States
| | - Asmaa I Owis
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Sameh AbouZid
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Yan-Hong Wang
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, MS 38677, United States
| | - Bharathi Avula
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, MS 38677, United States
| | - Ahmed A Seida
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Babu L Tekwani
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, MS 38677, United States; Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, MS 38677, United States.
| | - Samir A Ross
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, MS 38677, United States; Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, MS 38677, United States.
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Phytochemical profile and angiotensin I converting enzyme (ACE) inhibitory activity of Limonium michelsonii Lincz. J Nat Med 2017; 71:650-658. [PMID: 28550653 DOI: 10.1007/s11418-017-1095-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 05/15/2017] [Indexed: 10/19/2022]
Abstract
Members of the genus Limonium are widely used as medicinal herbs due to their health-promoting effects, such as an ability to improve blood circulation by inhibiting angiotensin I converting enzyme (ACE). While the potential of L. michelsonii Lincz. (a medicinal plant endemic to Kazakhstan) to inhibit ACE has been demonstrated, the inhibitory activities of its secondary metabolites have not been explored. In this work, the principal phenolic compounds (1-20) among these metabolites were isolated to determine the components responsible for ACE inhibition. The natural abundances of the active constituents within the target plant were characterized by UPLC-Q-TOF/MS analysis. All of the isolated compounds except for gallates 10-12 were found to significantly inhibit ACE, with IC50 values of between 7.1 and 138.4 μM. Unexpectedly, the flavonol glycosides 16-20 were observed to be more potent than the corresponding aglycones 4 and 5. For example, quercetin (4) had IC50 = 30.3 μM, whereas its glycosides (16, 17) had IC50 = 10.2 and 14.5 μM, respectively. A similar trend was observed for myricetin (5) and its glycosides (18-20). In a kinetic study, the flavonols 3-5 and 16-20 and the dihydroflavonols 8 and 9 behaved as competitive inhibitors, whereas other flavones (1, 2, 13-15) and flavanones (6, 7) performed noncompetitive inhibition.
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Dihydromyricetin attenuated Ang II induced cardiac fibroblasts proliferation related to inhibitory of oxidative stress. Eur J Pharmacol 2017; 807:159-167. [PMID: 28414055 DOI: 10.1016/j.ejphar.2017.04.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 03/29/2017] [Accepted: 04/12/2017] [Indexed: 11/21/2022]
Abstract
Dihydromyricetin (DMY) is one of the most important flavonoids in vine tea, which showed several pharmacological effects. However, information about the potential role of DMY on angiotensin II (Ang II) induced cardiac fibroblasts proliferation remains unknown. In the present study, cardiac fibroblasts isolated from neonatal Sprague-Dawley rats were pretreated with different concentrations of DMY (0-320μM) for 4h, or DMY (80μM) for different time (0-24h), followed by Ang II (100nM) stimulation for 24h, Then number of cardiac fibroblasts and content of hydroxyproline was measured. The level of cellular reactive oxygen species, malondialdehyde (MDA), activity of superoxide dismutase (SOD) and total antioxidant capacity (T-AOC) were also evaluated. Expression of type I, type III collagen, α-smooth muscle actin (α-SMA), p22phox (one vital subunit of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase), SOD and thioredoxin (Trx) were detected with real time PCR or/and western blot. We found that pre-incubation with DMY (20μM, 40μM, 80μM) for 4h, 12h or 24h attenuated the proliferation of cardiac fibroblasts induced by Ang II. Expression of type I and type III collagen, as well as α-SMA were inhibited by DMY at both mRNA and protein level. DMY also significantly decreased cellular reactive oxygen species production and MDA level, while increased the SOD activity and T-AOC. DMY suppressed p22phox, while enhanced antioxidant SOD and Trx expression in Ang II stimulated cardiac fibroblasts. Thus, dihydromyricetin attenuated Ang II induced cardiac fibroblasts proliferation related to inhibitory of oxidative stress.
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Kim CS, Bae M, Oh J, Subedi L, Suh WS, Choi SZ, Son MW, Kim SY, Choi SU, Oh DC, Lee KR. Anti-Neurodegenerative Biflavonoid Glycosides from Impatiens balsamina. JOURNAL OF NATURAL PRODUCTS 2017; 80:471-478. [PMID: 28165740 DOI: 10.1021/acs.jnatprod.6b00981] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Four biflavonoid glycosides, balsamisides A-D (1-4), and nine known compounds (5-13) were obtained from the white petals of Impatiens balsamina. The 2D structures of the purified phytochemicals were established using conventional NMR techniques in addition to the new long-range HSQMBC NMR experiment. Acid hydrolysis followed by experimental and quantum-mechanics-based ECD data analysis permitted full configurational assignment of the purified metabolites. Compounds 1-13 were assessed for their potential to impede the generation of nitric oxide in lipopolysaccharide-stimulated BV2 cells. They were also investigated for potential neuroprotective activity using C6 cells and cytotoxicity against some human tumor cell lines, but were inactive (IC50 > 10 μM) against all the cell lines.
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Affiliation(s)
- Chung Sub Kim
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Munhyung Bae
- Natural Products Research Institute, College of Pharmacy, Seoul National University , Seoul 08826, Republic of Korea
| | - Joonseok Oh
- Department of Chemistry, Yale University , New Haven, Connecticut 06520, United States
- Chemical Biology Institute, Yale University , West Haven, Connecticut 06516, United States
| | - Lalita Subedi
- Gachon Institute of Pharmaceutical Science, Gachon University , Incheon 21936, Republic of Korea
- College of Pharmacy, Gachon University , #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Won Se Suh
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
| | - Sang Zin Choi
- Dong-A ST Research Institute , Kiheung, Yongin 17073, Republic of Korea
| | - Mi Won Son
- Dong-A ST Research Institute , Kiheung, Yongin 17073, Republic of Korea
| | - Sun Yeou Kim
- Gachon Institute of Pharmaceutical Science, Gachon University , Incheon 21936, Republic of Korea
- College of Pharmacy, Gachon University , #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Sang Un Choi
- Korea Research Institute of Chemical Technology , Daejeon 34114, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University , Seoul 08826, Republic of Korea
| | - Kang Ro Lee
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University , Suwon 16419, Republic of Korea
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Ghani NA, Ismail NH, Asakawa Y. Constituents of Fermented Male Flowers of Alnus sieboldiana (Betulaceae). Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Fractionation of the ethyl acetate crude extract of the fermented male flowers of Alnus sieboldiana resulted in the isolation of two diarylheptanoids and six flavonoids. Yashabushidiol A, yashabushidiol B and naringenin were known constituents of the male flowers of A. sieboldiana while kaempferol, quercetin, pinocembrin dimethyl ether, 5,7-dimethoxy-3-hydroxyflavanone and 5,7-dimethoxy-3-hydroxyflavone were isolated for first time from the fermented male flowers of A. sieboldiana. The isolated compounds were characterized using NMR and HRMS and compared with available literature.
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Affiliation(s)
- Nurunajah Ab Ghani
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, 770-8514 Tokushima, Japan
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor Malasia
- Atta-ur-Rahman Institute for Natural Product Discovery, Level 9, FF3, Universiti Teknologi MARA, 42300 Bandar Puncak Alam, Selangor Malaysia
| | - Nor Hadiani Ismail
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor Malasia
- Atta-ur-Rahman Institute for Natural Product Discovery, Level 9, FF3, Universiti Teknologi MARA, 42300 Bandar Puncak Alam, Selangor Malaysia
| | - Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, 770-8514 Tokushima, Japan
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Nan G, Sun J, Ding M, Yang X, Yang G. Interaction behavior between myricetin and dihydromyricetin with pepsin by spectroscopic and docking methods. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.07.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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43
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Xiang L, Wang Y, Yi X, Wang X, He X. Chemical constituent and antioxidant activity of the husk of Chinese hickory. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Sesquiterpenoids from Tussilago farfara inhibit LPS-induced nitric oxide production in macrophage RAW 264.7 cells. Arch Pharm Res 2015; 39:127-32. [DOI: 10.1007/s12272-015-0667-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 09/30/2015] [Indexed: 10/22/2022]
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Kim CS, Subedi L, Park KJ, Kim SY, Choi SU, Kim KH, Lee KR. Salicin derivatives from Salix glandulosa and their biological activities. Fitoterapia 2015; 106:147-52. [PMID: 26344424 DOI: 10.1016/j.fitote.2015.08.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 08/26/2015] [Accepted: 08/28/2015] [Indexed: 11/25/2022]
Abstract
Two new salicin derivatives, saliglandin (1) and 6'-O-(Z)-p-coumaroylsalicin (2), along with fourteen known analogues (3-16) were isolated from the twigs of Salix glandulosa Seemen. The structures of 1-16 were characterized by the use of NMR methods ((1)H and (13)C NMR, (1)H-(1)H COSY, HSQC and HMBC), chemical hydrolysis, and GC/MS. The full NMR data assignment of the known compounds 6, 13, and 14 are reported for the first time. Isolated compounds were evaluated for their nitric oxide (NO) inhibitory efficacy in lipopolysaccharide (LPS)-activated microglial cell (BV-2). Compounds 2, 5, 8-16 significantly inhibited NO production, compound 11 being the most efficacious (IC50 13.57 μM) respectively. Moreover, compound 16 dramatically increased the nerve growth factor (NGF) production (165.24 ± 11.1%) in C6 glioma cells. Taken together, these results revealed that salicin derivatives from Salix glandulosa might have potent effect as anti-neuroinflammatory agents.
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Affiliation(s)
- Chung Sub Kim
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Lalita Subedi
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, 406-799, Republic of Korea; College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 406-799, Republic of Korea
| | - Kyoung Jin Park
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Sun Yeou Kim
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon, 406-799, Republic of Korea; College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 406-799, Republic of Korea
| | - Sang Un Choi
- Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea
| | - Ki Hyun Kim
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Kang Ro Lee
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea
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Jo YH, Kim SB, Liu Q, Lee JW, Hwang BY, Lee MK. Benzylated and prenylated flavonoids from the root barks of Cudrania tricuspidata with pancreatic lipase inhibitory activity. Bioorg Med Chem Lett 2015; 25:3455-7. [DOI: 10.1016/j.bmcl.2015.07.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 06/24/2015] [Accepted: 07/06/2015] [Indexed: 10/23/2022]
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Gadetskaya AV, Tarawneh AH, Zhusupova GE, Gemejiyeva NG, Cantrell CL, Cutler SJ, Ross SA. Sulfated phenolic compounds from Limonium caspium: Isolation, structural elucidation, and biological evaluation. Fitoterapia 2015; 104:80-5. [PMID: 26025854 DOI: 10.1016/j.fitote.2015.05.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/21/2015] [Accepted: 05/22/2015] [Indexed: 10/23/2022]
Abstract
Three new compounds, (2S,3S)-5-methyldihydromyricetin (1), (2S,3S)-5-methyldihydromyricetin-3'-O-sulfate (2) and β-d-glucopyranoside, 3-methyl, but-3-en-1-yl 4-O-α-l-rhamnopyranosyl (3) have been isolated from the Limonium caspium, together with dihydromyricetin (4), dihydromyricetin-3'-O-sulfate (5), myricetin-3'-O-sulfate (6), 5-methylmyricetin (7), myricetin (8), myricetin-3-O-β-glucoside (9), as well as phloridzin (10), and tyramine (11). Compounds 5 and 6 were isolated for the first time as acids. This is the first report of all these compounds from this plant. Their structures were established by extensive NMR studies ((1)H NMR, (13)C NMR, DEPT, (1)H-(1)H COSY, HSQC, HMBC) as well as HRESIMS. All isolated compounds were evaluated for their antibacterial, antifungal, antimalarial and antileishmanial activities. Compounds 7, 8 and 9 exhibited good antifungal activity against Candida glabrata with IC50 values of 6.79, 15.37 and 8.53μg/mL, respectively. Compound 8 displayed significant antimalarial activity against resistant and sensitive strains of Plasmodium falciparum with IC50 values of 1.82 and 1.51μg/mL, respectively. Compounds 1, 4, 6, 8 and 9 showed excellent activity against Trypanosoma brucei with IC50 values of 6.93, 9.65, 8.52, 7.67 and 6.31μg/mL, respectively. To date, this is the first report on the phytochemical and biological activity of secondary metabolites from L. caspium.
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Affiliation(s)
- Anastassiya V Gadetskaya
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA; School of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
| | - Amer H Tarawneh
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Galiya E Zhusupova
- School of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
| | - Nadezhda G Gemejiyeva
- Botanical Garden, the Institute of Botany and Phytointrodaction, Almaty, 480070, Kazakhstan
| | - Charles L Cantrell
- Natural Products Utilization Research Unit, USDA-ARS, University, MS 38677, USA
| | - Stephen J Cutler
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Samir A Ross
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA; Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA.
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Liu B, Zhou W, Chen X, Xu F, Chen Y, Liu J, Zhang Q, Bao S, Chen N, Li M, Zhu R. Dihydromyricetin induces mouse hepatoma Hepal-6 cell apoptosis via the transforming growth factor-β pathway. Mol Med Rep 2014; 11:1609-14. [PMID: 25376731 PMCID: PMC4270327 DOI: 10.3892/mmr.2014.2891] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Accepted: 08/18/2014] [Indexed: 12/11/2022] Open
Abstract
Dihydromyricetin (DHM) is a flavonoid compound which possesses potent antitumor activity. In the present study, it was demonstrated that DHM significantly inhibited proliferation and induced apoptosis in mouse hepatocellular carcinoma Hepal-6 cells. Transforming growth factor β (TGF-β) is recognized as a major profibrogenic cytokine and is therefore a common target for drugs in the treatment of liver disease. The present study aimed to investigate whether TGF-β was involved in DHM-triggered cell-viability inhibition and apoptosis induction. An MTT assay was used to evaluate the viability of Hepal-6 cells following DHM treatment. TGF-β signalling is mediated by Smads and nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4) is a crucial regulator of reactive oxygen species ROS production. TGF-β, Smad3, phosphorylated (p)-Smad2/3 and NOX4 protein expression levels were evaluated by western blot analysis. TGF-β and NOX4 gene expression levels were determined by quantitative polymerase chain reaction. The results indicated that DHM downregulated TGF-β, Smad3, p-Smad2/3 and NOX4 in a concentration-dependent manner. A cell counting assay indicated that DHM also inhibited Hepal-6 cell growth in a concentration-dependent manner. TGF-β expression was significantly decreased following DHM treatment. In conclusion, the results of the present study defined and supported a novel function for DHM, indicating that it induced cell apoptosis by downregulating ROS production via the TGF-β/Smad3 signaling pathway in mouse hepatocellular carcinoma Hepal-6 cells.
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Affiliation(s)
- Bin Liu
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Wei Zhou
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Xiaofeng Chen
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Fengming Xu
- Department of Pediatrics, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Yinqin Chen
- Department of Interventional Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Jie Liu
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Qingyu Zhang
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Shiting Bao
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Nianping Chen
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Mingyi Li
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Runzhi Zhu
- Laboratory of Hepatobiliary Surgery, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
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Liang X, Wu YP, Qiu JH, Zhong K, Gao H. A Potent Antibrowning Agent from Pine Needles ofCedrus deodara:2R,3R-Dihydromyricetin. J Food Sci 2014; 79:C1643-8. [DOI: 10.1111/1750-3841.12583] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 07/12/2014] [Indexed: 01/03/2023]
Affiliation(s)
- Xue Liang
- College of Light Industry; Textile and Food Engineering, Sichuan Univ; Chengdu 610065 P.R. China
| | - Yan-Ping Wu
- College of Light Industry; Textile and Food Engineering, Sichuan Univ; Chengdu 610065 P.R. China
| | - Jing-Hong Qiu
- College of Light Industry; Textile and Food Engineering, Sichuan Univ; Chengdu 610065 P.R. China
| | - Kai Zhong
- College of Light Industry; Textile and Food Engineering, Sichuan Univ; Chengdu 610065 P.R. China
| | - Hong Gao
- College of Light Industry; Textile and Food Engineering, Sichuan Univ; Chengdu 610065 P.R. China
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