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Yan H, Lyu H, Otgon O, Lu J, Peng D, Zhu Y, Jiang J. Five new flavonoids and their pharmacological activities from Iris tenuifolia Pall. Fitoterapia 2024; 176:106022. [PMID: 38772509 DOI: 10.1016/j.fitote.2024.106022] [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: 11/03/2023] [Revised: 05/12/2024] [Accepted: 05/17/2024] [Indexed: 05/23/2024]
Abstract
Five new components including two new isoflavones, 5, 7, 2', 3'-tetrahydroxy-6-methoxyisoflavone (1), 5, 7, 2', 3'-tetrahydroxy-8-methoxyisoflavone (2), one flavonol 3, 5, 3', 4'-tetrahydroxy-7, 2'-dimethoxyflavonol (3), one flavanone (2S)-5, 7, 3'-trihydroxy-2'-methoxyflavanone (4), and one flavanonol (2R, 3R)-3, 5, 3', 4'-tetrahydroxy-7, 2'-dimethoxyflavanonol (5), along with nine known flavonoids (6-14) were isolated from under ground parts of Iris tenuifolia Pall. Their structures were elucidated by NMR and HRESIMS data and by comparison of CD spectra with compounds having similar structure. The separated compounds were evaluated for in vitro antioxidant activities by DPPH and ABTS. The α-glucosidase inhibitory activity of the compounds were evaluated with the pNPG method, the results indicated flavonoids were potential inhibitors of α-glucosidase. Moreover, in vitro anti-oxidative assay using flow cytometry indicated that compounds 1-5 showed strong oxidation resistance ability on C8D1A cells without affecting the cell viability.
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Affiliation(s)
- Huijing Yan
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Da Dao, Nanjing 211198, People's Republic of China
| | - Haoyu Lyu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 639 Long Mian Da Dao, Nanjing 211198, People's Republic of China; Department of Pharmacology, College of Pharmacy, Second Military Medical University, Shanghai, China
| | - Oldokh Otgon
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Da Dao, Nanjing 211198, People's Republic of China; Department of Chemistry, School of Biomedicine, Mongolian National University of Medical Sciences, S. Zorig Street 3, Ulaanbaatar 14210, Mongolia
| | - Jie Lu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Da Dao, Nanjing 211198, People's Republic of China
| | - Dandan Peng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Da Dao, Nanjing 211198, People's Republic of China
| | - Yuanhang Zhu
- Department of Anesthesiology, The First People´s Hospital of Yunnan Province, 157 Jinbi Road, Kunming, 650034, People's Republic of China.
| | - Jianqin Jiang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long Mian Da Dao, Nanjing 211198, People's Republic of China.
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Banzragchgarav O, Ariefta NR, Murata T, Myagmarsuren P, Battsetseg B, Battur B, Batkhuu J, Nishikawa Y. Evaluation of Mongolian compound library for potential antimalarial and anti-Toxoplasma agents. Parasitol Int 2021; 85:102424. [PMID: 34302982 DOI: 10.1016/j.parint.2021.102424] [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: 02/17/2021] [Revised: 07/17/2021] [Accepted: 07/17/2021] [Indexed: 11/17/2022]
Abstract
179 compounds in a Mongolian compound library were investigated for their inhibitory effect on the in vitro growth of Plasmodium falciparum and Toxoplasma gondii. Among these compounds, brachangobinan A at a half-maximal inhibition concentration (IC50) of 2.62 μM and a selectivity index (SI) of 27.91; 2-(2'-hydroxy-5'-O-methylphenyl)-5-(2″,5″-dihydroxyphenyl)oxazole (IC50 3.58 μM and SI 24.66); chrysosplenetin (IC50 3.78 μM and SI 15.26); 4,11-di-O-galloylbergenin (IC50 3.87 μM and SI 13.38); and 2-(2',5'-dihydroxyphenyl)-5-(2″-hydroxyphenyl)oxazole (IC50 6.94 μM and SI 11.48) were identified as potential inhibitors of P. falciparum multiplication. Additionally, tricin (IC50 12.94 μM and SI > 23.40) was identified as a potential inhibitor of T. gondii multiplication. Our findings represent a good starting point for developing novel antimalarial and anti-Toxoplasma therapeutics from Mongolian compounds.
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Affiliation(s)
- Orkhon Banzragchgarav
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan; Institute of Veterinary Medicine, Mongolian University of Life Sciences, Ulaanbaatar 17024, Mongolia
| | - Nanang R Ariefta
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan
| | - Toshihiro Murata
- Division of Pharmacognosy, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Japan
| | | | - Badgar Battsetseg
- Institute of Veterinary Medicine, Mongolian University of Life Sciences, Ulaanbaatar 17024, Mongolia
| | - Banzragch Battur
- Institute of Veterinary Medicine, Mongolian University of Life Sciences, Ulaanbaatar 17024, Mongolia; Graduate School, Mongolian University of Life Science, Ulaanbaatar 17024, Mongolia
| | - Javzan Batkhuu
- School of Engineering and Applied Sciences, National University of Mongolia, Ulaanbaatar 14201, Mongolia
| | - Yoshifumi Nishikawa
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan.
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Murata T, Batkhuu J. Biological activity evaluations of chemical constituents derived from Mongolian medicinal forage plants and their applications in combating infectious diseases and addressing health problems in humans and livestock. J Nat Med 2021; 75:729-740. [PMID: 34018093 PMCID: PMC8137442 DOI: 10.1007/s11418-021-01529-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/06/2021] [Indexed: 12/11/2022]
Abstract
Mongolian nomadic people possess traditional knowledge of wild plants that grow in their areas of habitation. Many of these are forage plants in nature and are consumed by livestock. However, these plants are known to have medicinal and/or toxic properties. To establish a scientific understanding of the plants, and in turn, offer sound knowledge on their applications and effective use, it is essential to collect data pertaining to the chemical constituents of each plant. Therefore, the first objective of this study was to identify and determine the structural constituents of the forage plants that were available to our research group. Furthermore, in an attempt to demonstrate the biological activities of the isolated chemical compounds, we focused on solving some of the social issues affecting Mongolian communities, including protozoan diseases affecting livestock, vectors of infectious diseases, and the general health of humans and their livestock. The results of the chemical constituents derived from Mongolian medicinal plants and their biological activities that were studied in the recent decade are also described herein.
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Affiliation(s)
- Toshihiro Murata
- Division of Pharmacognosy, Tohoku Medical and Pharmaceutical University, 4-1 Komatsushima 4-chome, Aoba-ku, Sendai, 981-8558, Japan.
| | - Javzan Batkhuu
- School of Engineering and Applied Sciences, National University of Mongolia, POB-617/46A, Ulaanbaatar, 14201, Mongolia
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Stilbenoids isolated from the roots of Rheum lhasaense under the guidance of the acetylcholinesterase inhibition activity. J Nat Med 2021; 75:372-380. [PMID: 33411157 DOI: 10.1007/s11418-020-01478-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 12/14/2020] [Indexed: 12/19/2022]
Abstract
Four unknown stilbenoids, including one dimer, namely 4'-methoxy-scirpusin A (5) and three monomeric stilbene glycosides, namely piceatannol-3'-O-[2''-(3,5-dihydroxy-4-methoxybenzoyl)]-β-D-glucopyranoside (13), piceatannol-3'-O-(2''-galloyl)-β-D-glucopyranoside (14) and piceatannol-3'-O-(6″-p-coumaroyl)-β-D-glucopyranoside (16) together with 15 described compounds, were isolated from the ethyl acetate fraction of the ethanol extract of roots of Rheum lhasaense based on the guidance of the inhibitory effect on acetylcholinesterase. The structures of the unknown compounds were established by combined spectroscopic analysis and comparing their spectral data with compounds with similar structures. Some selected components were also investigated for their inhibitory abilities on acetylcholinesterase (AChE), indicating that compound 13 may be responsible for higher inhibitory activity of the ethyl acetate fraction on AChE.
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Tirosh-Levy S, Gottlieb Y, Fry LM, Knowles DP, Steinman A. Twenty Years of Equine Piroplasmosis Research: Global Distribution, Molecular Diagnosis, and Phylogeny. Pathogens 2020; 9:E926. [PMID: 33171698 PMCID: PMC7695325 DOI: 10.3390/pathogens9110926] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/04/2020] [Accepted: 11/04/2020] [Indexed: 12/26/2022] Open
Abstract
Equine piroplasmosis (EP), caused by the hemoparasites Theileria equi, Theileria haneyi, and Babesia caballi, is an important tick-borne disease of equines that is prevalent in most parts of the world. Infection may affect animal welfare and has economic impacts related to limitations in horse transport between endemic and non-endemic regions, reduced performance of sport horses and treatment costs. Here, we analyzed the epidemiological, serological, and molecular diagnostic data published in the last 20 years, and all DNA sequences submitted to GenBank database, to describe the current global prevalence of these parasites. We demonstrate that EP is endemic in most parts of the world, and that it is spreading into more temperate climates. We emphasize the importance of using DNA sequencing and genotyping to monitor the spread of parasites, and point to the necessity of further studies to improve genotypic characterization of newly recognized parasite species and strains, and their linkage to virulence.
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Affiliation(s)
- Sharon Tirosh-Levy
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (Y.G.); (A.S.)
| | - Yuval Gottlieb
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (Y.G.); (A.S.)
| | - Lindsay M. Fry
- Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, WA 99164, USA; (L.M.F.); (D.P.K.)
- Animal Disease Research Unit, Agricultural Research Service, US Department of Agriculture, Pullman, WA 99164, USA
| | - Donald P. Knowles
- Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, WA 99164, USA; (L.M.F.); (D.P.K.)
| | - Amir Steinman
- Koret School of Veterinary Medicine, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (Y.G.); (A.S.)
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Mou LY, Wei M, Wu HY, Li JL, Li GP. Chemical constituents from Anemone vitifolia Buch.-Ham. (Ranunculaceae). BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2020.104123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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AbouLaila M, El-Sayed SAES, Omar MA, Al-Aboody MS, Abdel Aziz AR, Abdel-Daim MM, Rizk MA, Igarashi I. Myrrh Oil in Vitro Inhibitory Growth on Bovine and Equine Piroplasm Parasites and Babesia microti of Mice. Pathogens 2020; 9:pathogens9030173. [PMID: 32121352 PMCID: PMC7157210 DOI: 10.3390/pathogens9030173] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/21/2020] [Accepted: 02/22/2020] [Indexed: 01/16/2023] Open
Abstract
The present experimental study was conducted for the assessment of the efficacy of in vitro inhibition of myrrh oil on the propagation of Babesia bovis, B. divergens, B. bigemina, Theileria equi, and B. caballi and in vivo efficacy on B. microti in mice through fluorescence assay based on SYBR green I. The culture of B. divergens B. bovis and was used to evaluate the in vitro possible interaction between myrrh oil and other commercial compound, such as pyronaridine tetraphosphate (PYR), diminazene aceturate (DA), or luteolin. Nested-polymerase chain reaction protocol using primers of the small-subunit rRNA of B. microti was employed to detect any remnants of DNA for studied parasitic species either in blood or tissues. Results elucidated that; Myrrh oil significantly inhibit the growth at 1% of parasitic blood level for all bovine and equine piroplasm under the study. Parasitic regrowth was inhibited subsequently by viability test at 2 µg/mL for B. bigemina and B. bovis, and there was a significant improvement in the in vitro growth inhibition by myrrh oil when combined with DA, PYR, and luteolin. At the same time; mice treated with a combination of myrrh oil/DA showed a higher inhibition in emitted fluorescence signals than the group that challenged with 25 mg/kg of diminazene aceturate at 10 and 12 days post-infection. In conclusion, this study has recommended the myrrh oil to treat animal piroplasmosis, especially in combination with low doses of DA.
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Affiliation(s)
- Mahmoud AbouLaila
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan; (M.A.); (S.A.E.-S.E.-S.); (I.I.)
- Department of Parasitology, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, ElBehera, Egypt
| | - Shimaa Abd El-Salam El-Sayed
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan; (M.A.); (S.A.E.-S.E.-S.); (I.I.)
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Mosaab A. Omar
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, 51452 Qassim, Saudi Arabia;
- Department of Parasitology, Faculty of Veterinary Medicine, South Valley University, Luxor 83523, Qena, Egypt
| | - Mohammad Saleh Al-Aboody
- Department of Biology, College of Science in Zulfi, Majmaah University, Majmaah 11952, Saudi Arabia;
| | - Amer R. Abdel Aziz
- Department of Parasitology, Faculty of Veterinary Medicine, Sohag University, Sohag 82524, Egypt;
| | - Mohamed M. Abdel-Daim
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: (M.M.A.-D.); or (M.A.Z)
| | - Mohamed Abdo Rizk
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan; (M.A.); (S.A.E.-S.E.-S.); (I.I.)
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
- Correspondence: (M.M.A.-D.); or (M.A.Z)
| | - Ikuo Igarashi
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan; (M.A.); (S.A.E.-S.E.-S.); (I.I.)
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