1
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Cham BT, Hoang VD, Thuy Linh NT, Tai BH, Delfino DV, Thuy TT. Noncytotoxic 16,23-epoxycucurbitacin-type triterpenoids from Elaeocarpus hainanensis. Nat Prod Res 2024; 38:1216-1220. [PMID: 36287582 DOI: 10.1080/14786419.2022.2137507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/23/2022] [Accepted: 10/07/2022] [Indexed: 10/31/2022]
Abstract
Phytochemical investigation of methanol extract from Elaeocarpus hainanensis Oliv. leaves and twigs led to the isolation and structural determination of three 16,23-epoxycucurbitacin-type triterpenoids, including a new hydroperoxide, 16α,23α-epoxy-3β,20β-dihydroxy-24α-hydroperoxy-10αH,23βH-cucurbit-5,25-dien-11-one (elahainencin A, 1), and two known analogs (2 and 3). Their chemical structures were determined by the spectroscopic analyses, including 1 D-, 2 D NMR and HR ESI MS spectra. Compound 1 represents a cucurbitacin derivative incorporating a hydroperoxide. In addition, these isolated compounds have been found to be noncytotoxic when tested in vitro against five human cancer cell lines (A549, T24, 8505, Huh-7 and SNU-1) by using the SRB method.
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Affiliation(s)
- Ba Thi Cham
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Department of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Vu Dinh Hoang
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Thi Thuy Linh
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Department of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Bui Huu Tai
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Domenico V Delfino
- Section of Pharmacology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Trinh Thi Thuy
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Department of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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2
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Hoa NTT, Cham BT, Hoang Anh NT, Tuan Hiep N, Anh NTK, Nhung LTH, Adorisio S, Delfino DV, Thuy TT, Thuy Linh NT. Identification and nitric oxide production inhibitory activity of phenolic derivatives from the trunks of Gnetum latifolium. Nat Prod Res 2024:1-5. [PMID: 38400522 DOI: 10.1080/14786419.2024.2320729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 02/11/2024] [Indexed: 02/25/2024]
Abstract
Phytochemical investigation of the trunks from Gnetum latifolium led to the isolation of a novel phenolic glucoside, 2E-2,4-di-(3,4-dihydroxyphenyl)but-2-en-1-yl-O-β-D-glucopyranoside (1), along with five known stilbene derivatives (2-6). Their structures were determined mainly using high-resolution electrospray ionisation mass spectrometry and nuclear magnetic resonance spectroscopic analyses, followed by comparisons of observed spectral data with reported values. The novel compound 1 in G. latifolium was found to be useful as a chemotaxonomic marker. Biological evaluation revealed that compound 6 had remarkable inhibitory effects on nitric oxide production, with a half-maximal inhibitory concentration (IC50) value of 4.85 ± 0.20 µM, which was much higher than that of the positive control dexamethasone (IC50 = 14.20 ± 0.54 µM).
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Affiliation(s)
- Nguyen Thi Thu Hoa
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Institute of Chemistry, VAST, Hanoi, Vietnam
- Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Ba Thi Cham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Institute of Chemistry, VAST, Hanoi, Vietnam
| | - Nguyen Thi Hoang Anh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Institute of Chemistry, VAST, Hanoi, Vietnam
| | - Nguyen Tuan Hiep
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- National Institute of Medicinal Materials, Hanoi, Vietnam
| | | | | | - Sabrina Adorisio
- Master in Musculoskeletal and Rheumatology Physiotherapy, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Domenico V Delfino
- Master in Musculoskeletal and Rheumatology Physiotherapy, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Trinh Thi Thuy
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Institute of Chemistry, VAST, Hanoi, Vietnam
| | - Nguyen Thi Thuy Linh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Institute of Chemistry, VAST, Hanoi, Vietnam
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3
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Thuy TT, Thuy Linh NT, Nguyen Thi Thu H, Cham BT, Quan TD, Do TT, Hoang Anh NT, Quan PM, Delfino DV, Khac Vu T. Novel trans-caffeate hydrazide derivatives: synthesis, inhibition of nitric oxide (NO) production and molecular docking studies. Nat Prod Res 2023:1-8. [PMID: 37859419 DOI: 10.1080/14786419.2023.2272020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/07/2023] [Indexed: 10/21/2023]
Abstract
Eight new caffeyl hydrazide derivatives (4a-4h) were synthesised via a convenient esterification of caffeic acid with some substituted aryl acid hydrazides. The synthesised caffeyl derivatives were evaluated for their inhibitory effects on lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW264.7 macrophages. The fluorobenzoylhydrazide derivatives 4f, 4 g and 4h were found to be the most powerful anti-inflammatory compounds with IC50 values ranging from 11.90 to 24.17 μM, which were more potent than the reference compound L-NMMA (IC50 32.8 μM). Additionally, synthesised compounds have been rationalised by using molecular docking studies which were performed in order to understand insights on the action mechanism of newly synthesised inhibitors against inflammatory mediator (iNOS). Obtained data indicate that compounds 4f, 4h, 4a and 4 g were observed to effectively bind to iNOS receptor with dock score values of -11.62, -10.81, -10.78 and -10.51 kcal/mol, respectively.
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Affiliation(s)
- Trinh Thi Thuy
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thi Thuy Linh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Hoa Nguyen Thi Thu
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Vietnam National University of Agriculture, Trau Quy, Hanoi, Vietnam
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Ba Thi Cham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Tran Duc Quan
- Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Thi Thao Do
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Institute of Biotechnology, VAST, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thi Hoang Anh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Pham Minh Quan
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Institute of Natural Products Chemistry, VAST, Cau Giay, Hanoi, Vietnam
| | - Domenico V Delfino
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Tran Khac Vu
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
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Thuy TT, Hoa NTT, Linh NTT, Cham BT, Anh NTH, Hiep NT, Adorisio S, Delfino DV, Bang NA, Tai BH, Kiem PV. Four New Stilbene Derivatives Isolated from Gnetum latifolium var. funiculare Markgr. and Their Inhibition of NO Production in LPS-activated RAW264.7 Cells. Chem Biodivers 2023; 20:e202301166. [PMID: 37591796 DOI: 10.1002/cbdv.202301166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/17/2023] [Accepted: 08/17/2023] [Indexed: 08/19/2023]
Abstract
Gnetum latifolium var. funiculare Markgr. is a medicinal plant and widely distributed in mountainous areas of Vietnam. Phytochemical investigation on the trunks of this plant afforded eight stilbene derivatives (1-8) including for new compounds (1-4). Their structures were determined based on extensive analyses of HR-ESI-MS, 1D and 2D NMR spectra. Among the isolates, compounds 1-3 showed moderate NO production inhibition in LPS-activated RAW264.7 cells with the IC50 values ranging from 46.81 to 68.10 μM, compounds 4 and 6 showed weak effects with the IC50 values of 96.57 and 79.46 μM, respectively, compared to that of the positive control compound, dexamethasone (IC50 14.20 μM).
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Affiliation(s)
- Trinh Thi Thuy
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
| | - Nguyen Thi Thu Hoa
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Vietnam National University of Agriculture, Trau Quy, Gia Lam, Hanoi, 10072, Vietnam
| | - Nguyen Thi Thuy Linh
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
| | - Ba Thi Cham
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
| | - Nguyen Thi Hoang Anh
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
| | - Nguyen Tuan Hiep
- National Institute of Medicinal Materials, 3B Quang Trung, Hoan Kiem, 10072, Vietnam
| | - Sabrina Adorisio
- Master in musculoskeletal and rheumatology physiotherapy, Department of Medicine and Surgery, University of Perugia, Piazzale Severi, S. Andreadelle Fratte, 06132, Perugia, Italy
| | - Domenico V Delfino
- Master in musculoskeletal and rheumatology physiotherapy, Department of Medicine and Surgery, University of Perugia, Piazzale Severi, S. Andreadelle Fratte, 06132, Perugia, Italy
| | - Ngo Anh Bang
- Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam E-mail: s
| | - Bui Huu Tai
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam E-mail: s
| | - Phan Van Kiem
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam
- Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 10072, Vietnam E-mail: s
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5
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Cham BT, Dinh Hoang V, Thuy Linh NT, Hoa NTT, Hoang Anh NT, Tai BH, Nhung LTH, Delfino DV, Thuy TT. Oleanane-type triterpenoid sulphates, two new α-glucosidase inhibitors from Elaeocarpus hainanensis. Nat Prod Res 2023:1-5. [PMID: 37615602 DOI: 10.1080/14786419.2023.2250900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
In connection with our interest in the phytochemical investigation of Elaeocarpus hainanensis Oliv. (Elaeocarpaceae) growing in Vietnam, two new sulphated oleanane triterpenes were obtained herein and structurally identified. Based on the combination of the extensive 1D-, 2D NMR and HR ESI MS spectroscopic data analysis, their chemical structures have been elucidated as 1α,3β-dihydroxy-olean-18-ene 1-sulphate (1) and 1α,3β-dihydroxy-olean-12-ene 1-sulphate (2). Notably, compounds 1 and 2 are corroborating the proposition that triterpenoid sulphates serve as chemosystematic markers of the Elaeocarpus genus. Additionally, all these two new compounds 1 and 2 strongly inhibited α-glucosidase in vitro with the respective IC50 values of 3.81 ± 0.33 µM and 21.27 ± 0.48 µM, which were significantly better than that obtained from positive control, acarbose (IC50 247.73 ± 11.85 µM).
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Affiliation(s)
- Ba Thi Cham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Viet Nam
- Institute of Chemistry, VAST, Hanoi, Vietnam
| | - Vu Dinh Hoang
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Nguyen Thi Thuy Linh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Viet Nam
- Institute of Chemistry, VAST, Hanoi, Vietnam
| | - Nguyen Thi Thu Hoa
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Viet Nam
| | - Nguyen Thi Hoang Anh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Viet Nam
- Institute of Chemistry, VAST, Hanoi, Vietnam
| | - Bui Huu Tai
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Viet Nam
- Institute of Marine Biochemistry, VAST, Hanoi, Vietnam
| | | | - Domenico V Delfino
- Department of Medicine and Surgery, University of Perugia, Perugia, Umbria, Italy
| | - Trinh Thi Thuy
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Viet Nam
- Institute of Chemistry, VAST, Hanoi, Vietnam
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6
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Huong QTT, Nam NTH, Hai ND, Dat NM, Linh NTT, Tinh NT, Chau NM, Phuc NVH, Le Hoai Nhi T, Phong MT, Hieu NH. Surface modification and antibacterial activity enhancement of acrylic fabric by coating silver/graphene oxide nanocomposite. J Polym Res 2023. [DOI: 10.1007/s10965-023-03478-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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7
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Thuy TT, Thuy Linh NT, Cham BT, Hoang Anh NT, Quan TD, Tam NT, Hong Nhung LT, Thao DT, Hung NP, Hoang VD, Adorisio S, Delfino DV. Sesquiterpenoids from Tithonia diversifolia (Hemsl.) A. Gray induce apoptosis and inhibit the cell cycle progression of acute myeloid leukemia cells. Z NATURFORSCH C 2023; 78:65-72. [PMID: 36321958 DOI: 10.1515/znc-2021-0154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/28/2022] [Indexed: 01/10/2023]
Abstract
Three sesquiterpene lactones (1-3) were isolated from the aerial part of Tithonia diversifolia (Hemsl.) A. Gray grown in the Hoa Binh province in Viet Nam. The structures of these three sesquiterpene lactones were identified as tagitinin A (1), 1β-hydroxytirotundin 3-O-methyl ether (2), and tagitinin C (3) by analyzing spectroscopic data. For the first time, compound 2 was isolated from T. diversifolia growing in Viet Nam. Furthermore, contrary to existing literature, we determined that compound 1 was the major isolate. Compounds 1 and 3 significantly decreased numbers of acute myeloid leukemia OCI-AML3 cells by promoting apoptosis and causing cell cycle arrest at G0/G1 phase at concentrations as low as 2.5 μg/mL (compound 1) and 0.25 μg/mL (compound 3). Additionally, all three compounds showed cytotoxic activity against five human cancer cell lines (A549, T24, Huh-7, 8505, and SNU-1), with IC50 values ranging from 1.32 ± 0.14 to 46.34 ± 2.74 μM. Overall, our findings suggest that compounds 1 and 3 may be potential anti-cancer therapeutics and thus warrant further study.
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Affiliation(s)
- Trinh Thi Thuy
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam.,Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam
| | - Nguyen Thi Thuy Linh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam.,Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam
| | - Ba Thi Cham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam.,Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam
| | - Nguyen Thi Hoang Anh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam.,Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam
| | - Tran Duc Quan
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam
| | - Nguyen Thanh Tam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam.,Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam
| | - Le Thi Hong Nhung
- Hanoi University of Industry, 298 Cau Dien, North District Tu Liem, Ha Noi, Viet Nam
| | - Do Thi Thao
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam.,Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam
| | - Nguyen Phi Hung
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam.,Institute of Natural Products Chemistry, Vietnam Academy Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Ha Noi, Viet Nam
| | - Vu Dinh Hoang
- School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet, Hai BBa Trung, Ha Noi, Viet Nam
| | - Sabrina Adorisio
- Department of Medicine and Surgery, Foligno Nursing School, University of Perugia, Piazzale Severi, S. Andrea delle Fratte, 06129 Perugia, Italy
| | - Domenico V Delfino
- Department of Medicine and Surgery, Foligno Nursing School, University of Perugia, Piazzale Severi, S. Andrea delle Fratte, 06129 Perugia, Italy.,Department of Medicine and Surgery, University of Perugia, Piazzale Severi, S. Andrea delle Fratte, 06129 Perugia, Italy
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Pinthong S, Ditthakit P, Salaeh N, Hasan MA, Son CT, Linh NTT, Islam S, Yadav KK. Imputation of missing monthly rainfall data using machine learning and spatial interpolation approaches in Thale Sap Songkhla River Basin, Thailand. Environ Sci Pollut Res Int 2022:10.1007/s11356-022-23022-8. [PMID: 36173524 DOI: 10.1007/s11356-022-23022-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/10/2022] [Indexed: 06/16/2023]
Abstract
Missing rainfall data has been a prevalent issue and primarily interested in hydrology and meteorology. This research aimed to examine the capability of machine learning (ML) and spatial interpolation (SI) methods to estimate missing monthly rainfall data. Six ML algorithms (i.e. multiple linear regression (MLR), M5 model tree (M5), random forest (RF), support vector regression (SVR), multilayer perceptron (MLP), genetic programming (GP)) and four SI methods (i.e. arithmetic average (AA), inverse distance weighting (IDW), correlation coefficient weighted (CCW), normal ratio (NR)) were investigated and compared in their performance. The twelve rainfall stations, located in the Thale Sap Songkhla river basin and nearby basins, were considered as a study case. Tuning hyper-parameters for each ML method was conducted to get the most suitable model for the data sets considered. Three performance criteria matrices (i.e. NSE, OI, and r) were chosen, and the sum of those three performance criteria matrices was introduced for methods' performance comparison. The experimental results pointed out that selecting neighbouring stations were essential when applying SI methods, but not for the ML method. The overall performance showed ML better imputed missing monthly rainfall than SI due to overcoming spatial constraints. GP provided the highest performance by giving NSE = 0.825, OI = 0.877, and r = 0.909 for the training stage. Those values for the testing stage were 0.796, 0.852, and 0.902, respectively. It was followed by SVR-rbf, SVR-poly, and RF. NR provided the best performance among four SI methods, followed by CCW, AA, and IDW. When applying SI methods, it should contemplate a correlation between the target and neighbouring stations greater than 0.80.
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Affiliation(s)
- Sirimon Pinthong
- Center of Excellence in Sustainable Disaster Management, School of Engineering and Technology, Walailak University, Nakhon Si Thammarat, 80161, Thailand
| | - Pakorn Ditthakit
- Center of Excellence in Sustainable Disaster Management, School of Engineering and Technology, Walailak University, Nakhon Si Thammarat, 80161, Thailand.
| | - Nureehan Salaeh
- Center of Excellence in Sustainable Disaster Management, School of Engineering and Technology, Walailak University, Nakhon Si Thammarat, 80161, Thailand
| | - Mohd Abul Hasan
- Civil Engineering Department, College of Engineering, King Khalid University, Abha, 61421, Saudi Arabia
| | - Cao Truong Son
- Faculty of Natural Resources and Environment, Vietnam National University of Agriculture, Hanoi, 100000, Vietnam
| | - Nguyen Thi Thuy Linh
- Institute of Applied Technology, Thu Dau Mot University, Thủ Dầu Một, Binh Duong province, Vietnam
| | - Saiful Islam
- Civil Engineering Department, College of Engineering, King Khalid University, Abha, 61421, Saudi Arabia
| | - Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal, 462044, India
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9
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Thuy Linh NT, Thuy TT, Tam NT, Cham BT, Tai BH, Thao DT, Thien DG, Chinh VT, Hoang Anh NT. Chemical constituents of Impatiens parvisepala and their α-glucosidase inhibition activity. Nat Prod Res 2022:1-6. [PMID: 36154790 DOI: 10.1080/14786419.2022.2127705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
The first chemical study of the whole Impatiens parvisepala S. X. Yu & Y. T. Hou led to the isolation of a new triterpene saponin, named Iparvisepala-1 (6) along with ten known compounds, which cover three flavonoid glycosides (1-3), one dihydrochalcone glucoside (4), one triterpenoid saponin (5), one triterpene (7) and four miscellaneous compounds (8-11). Their structures were elucidated by MS, NMR spectroscopic analyses as well as by comparisons of spectra data with those of the related published literatures. Additionally, flavonoid glucoside 2 showed impressive effect on α-glucosidase inhibition with the IC50 value of 12.53 ± 0.39 µM, much better than that of the positive control acabose (IC50 = 197.53 ± 2.68 µM).
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Affiliation(s)
- Nguyen Thi Thuy Linh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Trinh Thi Thuy
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thanh Tam
- Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Ba Thi Cham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Bui Huu Tai
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Do Thi Thao
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Dinh Gia Thien
- Nguyen Binh Khiem specialized high school, Tam Ky, Quang Nam, Vietnam
| | - Vu Tien Chinh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thi Hoang Anh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
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10
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Dat NM, Huong LM, Tinh NT, Linh NTT, Hai ND, Viet ND, Thinh DB, Cong CQ, Dat NT, Phong MT, Hieu NH. Surface modification of poly(propylene) fabric with graphene oxide‐based silver nanoparticles for antibacterial applications. J Appl Polym Sci 2022. [DOI: 10.1002/app.53119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nguyen Minh Dat
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
| | - Le Minh Huong
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
| | - Ninh Thi Tinh
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
| | - Nguyen Thi Thuy Linh
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
| | - Nguyen Duy Hai
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
| | - Nguyen Duc Viet
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
| | - Doan Ba Thinh
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
| | - Che Quang Cong
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
| | - Nguyen Tien Dat
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
- University of Science (HCMUS) Ho Chi Minh Vietnam
| | - Mai Thanh Phong
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
| | - Nguyen Huu Hieu
- VNU‐HCM, Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab) Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh Vietnam
- Vietnam National University Ho Chi Minh City (VNU‐HCM) Ho Chi Minh Vietnam
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11
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Thuy Linh NT, Manh Ha N, Son NT. Genus Tupistra: A Comprehensive Review of Phytochemistry and Pharmacological Activity. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221074851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In the current paper, secondary metabolites separated from Tupistra plants have been reviewed. Approximately 200 phytochemicals, classified in various chemical classes of bioactive compounds, have been compiled, along with their sources and references. The most striking feature is that the most frequently isolated compounds have been spirostanol sapogenins, and spirostanol and furostanol saponins, most of which are new in nature. The application of both Tupistra plant extracts and isolated compounds in biological assays is also one of the crucial aims in pharmacological discoveries. Tupistra constituents have demonstrated valuable properties in the field of pharmacology, such as antioxidative, antimicrobial, antidiabetic, and antihepatic activities, but their cytotoxic and anti-inflammatory actions can be considered as the more remarkable. In vivo cancer-related activities of the tested Tupistra samples were mostly based on apoptosis. Further phytochemical investigations, together with extensive assessments of the biological profiles and mechanism of action studies of the components of Tupistra species are to be expected.
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Affiliation(s)
- Nguyen Thi Thuy Linh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Manh Ha
- Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
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12
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Linh NTT, Giang NH, Lien NTK, Trang BK, Trang DT, Ngoc NT, Nghia VX, My LT, Mao CV, Hoang NH, Xuan NT. Association of PSORS1C3, CARD14 and TLR4 genotypes and haplotypes with psoriasis susceptibility. Genet Mol Biol 2022; 45:e20220099. [DOI: 10.1590/1678-4685-gmb-2022-0099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 10/03/2022] [Indexed: 11/09/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | - Le Tra My
- Institute of Genome Research, Vietnam
| | - Can Van Mao
- Vietnam Military Medical University, Vietnam
| | - Nguyen Huy Hoang
- University of Science and Technology, Vietnam; Institute of Genome Research, Vietnam
| | - Nguyen Thi Xuan
- University of Science and Technology, Vietnam; Institute of Genome Research, Vietnam
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13
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Linh NTT, Son NT, Ha NTT, Tra NT, Tu Anh LT, Chen S, Van Tuyen N. Biologically Active Constituents from Plants of the Genus Xanthium. Prog Chem Org Nat Prod 2021; 116:135-209. [PMID: 34698947 DOI: 10.1007/978-3-030-80560-9_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herbaceous annual plants of the genus Xanthium are widely distributed throughout the world and have been employed medicinally for millennia. This contribution aims to provide a systematic overview of the diverse structural classes of Xanthium secondary metabolites, as well as their pharmacological potential. On searching in various reference databases with a combination of three keywords "Xanthium", "Phytochemistry", and "Pharmacology", relevant publications have been obtained subsequently. From the 1950s to the present, phytochemical investigations have focused mainly on 15 Xanthium species, from which 300 compounds have been isolated and structurally resolved, primarily using NMR spectroscopic methodology. Xanthium constituents represent several secondary metabolite types, including simple phenols, sulfur and nitrogen-containing compounds, lignans, sterols, flavonoids, quinones, coumarins, and fatty acids, with terpenoids being the most common of these. Among the 174 terpenoids characterized, xanthanolide sesquiterpenoids are abundant, and most of the compounds isolated containing sulfur were found to be new in Nature. The ethnomedical uses of Xanthium crude extracts are supported by the in vitro and in vivo effects of their constituents, such as cytotoxicity, antioxidant, antibacterial, antifungal, antidiabetes, and hepatoprotective activities. Toxicological results suggest that Xanthium plant extracts are generally safe for use. In the future, additional phytochemical investigations, along with further assessments of the biological profiles and mechanism of action studies of the components of Xanthium species, are to be expected.
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Affiliation(s)
- Nguyen Thi Thuy Linh
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Ninh The Son
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam.
| | - Nguyen Thi Thu Ha
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Nguyen Thanh Tra
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Le Thi Tu Anh
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Sibao Chen
- Department of Applied Biochemistry and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Nguyen Van Tuyen
- Department of Medicinal Chemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
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14
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Abstract
The combination of traditional knowledge of medicinal plants with scientific rationale has yielded positive results in recent years. Bioactive compounds isolated from herbaceous plants have long been used as drugs that benefit human health, as well as providing useful compounds for drug development lead compound optimization. This chapter aims to provide a systematic overview of the structural types of Desmos secondary metabolites, along with their biological potential. Various chromatographic and spectroscopic methods have been utilized for isolating, purifying, and elucidating the structures of compounds from Desmos species. From 1982 to the present time, more than 200 metabolites have been isolated from members of this genus. Desmos spp. constituents include terpenoids, phytosterols, polyoxygenated cyclohexanes and cyclohexenes, oxepinones, fatty acids, with flavonoids, alkaloids, and miscellaneous phenols being the predominant compounds. The essential oils of Desmos species have also been investigated. Both crude plant extracts and isolated compounds from this genus have been evaluated for their biological activities. Desmos constituents have been found to exhibit cytotoxic, antimicrobial, antioxidative, anti-inflammatory, and aromatase and NFAT transcriptive inhibition effects.
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Affiliation(s)
- Nguyen Thi Thuy Linh
- Department of Chemistry, Institute of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Ninh The Son
- Department of Applied Biochemistry, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam.
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15
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Fatima B, Siddiqui SI, Ahmad R, Linh NTT, Thai VN. CuO-ZnO-CdWO 4: a sustainable and environmentally benign photocatalytic system for water cleansing. Environ Sci Pollut Res Int 2021; 28:53793-53803. [PMID: 34041667 DOI: 10.1007/s11356-021-14543-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 05/18/2021] [Indexed: 06/12/2023]
Abstract
Currently, there is a major problem of water contaminations, especially of dyes, all over the world. A new technique is being developed daily for the treatment of contaminated water. In many ways, a photocatalytic degradation of a dye by a mixed metal oxide photocatalyst is counted as the best technique for water treatment. This paper also addresses the preparation and photocatalytic application of newly developed mixed metal oxide nanocomposite, CuO-ZnO-CdWO4. A novel mixed metal oxide CuO-ZnO-CdWO4 nanocomposite has been synthesized by a green route using Brassica Rapa leaves extract. The application of CuO-ZnO-CdWO4 as a photocatalyst in wastewater treatment has been thoroughly discussed. Several spectroscopic and microscopic techniques were used to characterize the prepared nanocomposite. The photocatalytic activity of CuO-ZnO-CdWO4 nanocomposite with a band gap of 3.13 eV was observed under the artificial visible light and sunlight for the degradation of Congo red dye. The results under sunlight show the 1.45 times greater removal efficiency than under the artificial visible light. Pseudo-first-order, diffusion, and Singh kinetics models were used to describe the kinetics of dye degradation. Pseudo-first-order model was found to be best fitted model for present study. The performance of CuO-ZnO-CdWO4 was estimated by significant parameters such as quantum yield, figure of merit, turnover number, and mean turnover frequency. The value these parameters were calculated as 1.70 × 10-8 molecules photon-1, 1.77 × 10-4, 2.98 × 108 s-1, and 3.31 × 10-4 s-1, respectively. These parameters revealed high potential of CuO-ZnO-CdWO4 for Congo red dye degradation.
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Affiliation(s)
- Bushra Fatima
- Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India
| | | | - Rabia Ahmad
- Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India
| | - Nguyen Thi Thuy Linh
- Faculty of Environmental and Chemical Engineering, Thuyloi University, 175 Tay Son, Dong Da, Hanoi, 100000, Vietnam
| | - Van Nam Thai
- Ho Chi Minh City University of Technology (HUTECH), 475A, Dien Bien Phu, Ward 25, Binh Thanh District, Ho Chi Minh City, Vietnam.
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16
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Nematollahi A, Abdi L, Abdi-Moghadam Z, Fakhri Y, Borzoei M, Tajdar-Oranj B, Thai VN, Linh NTT, Mousavi Khaneghah A. The concentration of potentially toxic elements (PTEs) in sausages: a systematic review and meta-analysis study. Environ Sci Pollut Res Int 2021; 28:55186-55201. [PMID: 34128169 DOI: 10.1007/s11356-021-14879-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 06/09/2021] [Indexed: 06/12/2023]
Abstract
The contamination of fresh meat and meat products like sausages with potentially toxic elements (PTEs) is a worldwide health concern. Consequently, the related investigations concerning the levels of PTEs in sausages among databases such as Scopus, Cochrane, and PubMed were investigated 1 January 2000 to 20 August 2020. Furthermore, the concentration of PTEs in sausages was meta-analyzed based on the random effect model (REM). The findings indicated that the rank order of PTEs in sausage was Fe (432.154 μg/kg) > Cu (152.589 μg/kg) > Zn (93.813 μg/kg) > Cr (6.040 μg/kg) > Pb (1.524 μg/kg) > Ni (0.525 μg/kg) > Cd (0.115 μg/kg) > As (0.066 μg/kg). Our results showed that the PTE concentration in sausages was lower than the permitted limit except for Pb in samples reported from Nigeria, China, and Turkey. Therefore, continuous monitoring of PTEs in such products was recommended.
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Affiliation(s)
- Amene Nematollahi
- Department of Food Safety and Hygiene, School of Health, Fasa University of Medical Sciences, Fasa, Iran
| | - Lieil Abdi
- Food Safety and Hygiene Division, Department of Environmental Health Engineering, School of Publish Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Abdi-Moghadam
- Department of Food Science and Nutrition, Faculty of Medicine, Determinants of Health Research Center, Gonabad University of Medical Science, Gonabad, Iran
| | - Yadolah Fakhri
- Food Health Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mohammad Borzoei
- Food Health Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Behrouz Tajdar-Oranj
- Student Research Committee, Department of Food Science and Technology, Food Science and Technology/National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Halal Research Center of IRI, Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran
| | - Van Nam Thai
- Ho Chi Minh City University of Technology (HUTECH), 475A, Dien Bien Phu, Ward 25, Binh Thanh District, Ho Chi Minh City, Vietnam.
| | | | - Amin Mousavi Khaneghah
- Department of Food Science and Nutrition, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80 Caixa Postal: 6121 CEP, São Paulo, 13083-862, Campinas, Brazil
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17
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Linh NTT, Thuy TT, Tam NT, Cham BT, Tam KT, Sa NH, Thao DT, Chinh VT, Anh NTH. Chemical constituents of Impatiens chapaensis Tard. and their α-glucosidase inhibition activities. Nat Prod Res 2021; 36:3229-3233. [PMID: 34498968 DOI: 10.1080/14786419.2021.1956923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Sixteen compounds (1-16) were isolated from Impatiens chapaensis. Chemical structures were determined by spectroscopic analyses and comparisons with previously published data. This report is the first to identify compounds 1, 5-7, 10, 12-14, and 16 from the genus Impatiens. Seven chosen isolates (5, 7, 10, 11, 12, 15, and 16) were submitted for α-glucosidase inhibition assays with acarbose as the positive control (IC50 = 227.14 ± 13.71 µM). Flavonoid 5 exhibited a significant inhibitory effect (IC50 = 101.00 ± 9.01 µM).
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Affiliation(s)
- Nguyen Thi Thuy Linh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.,Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Trinh Thi Thuy
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.,Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Thanh Tam
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ba Thi Cham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.,Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | | | | | - Do Thi Thao
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Vu Tien Chinh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.,Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Thi Hoang Anh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.,Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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18
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Towfiqul Islam ARM, Talukdar S, Mahato S, Ziaul S, Eibek KU, Akhter S, Pham QB, Mohammadi B, Karimi F, Linh NTT. Correction to: Machine learning algorithm-based risk assessment of riparian wetlands in Padma River basin of Northwest Bangladesh. Environ Sci Pollut Res Int 2021; 28:34472. [PMID: 33743159 DOI: 10.1007/s11356-021-13480-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
| | - Swapan Talukdar
- Research Scholars, Department of Geography, University of Gour Banga, Malda, India
| | - Susanta Mahato
- Research Scholars, Department of Geography, University of Gour Banga, Malda, India
| | - Sk Ziaul
- Research Scholars, Department of Geography, University of Gour Banga, Malda, India
| | - Kutub Uddin Eibek
- Department of Disaster management, Begum Rokeya University, Rangpur, 5400, Bangladesh
| | - Shumona Akhter
- Department of Disaster management, Begum Rokeya University, Rangpur, 5400, Bangladesh
| | - Quoc Bao Pham
- Environmental Quality, Atmospheric Science and Climate Change Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Babak Mohammadi
- Department of Physical Geography and Ecosystem Science, Lund University, Sölvegatan 12, SE-223 62, Lund, Sweden
| | - Firoozeh Karimi
- Department of Geography, environment and sustainability, University of North Carolina-Greensboro, Greensboro, NC, USA
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Islam ARMT, Talukdar S, Mahato S, Ziaul S, Eibek KU, Akhter S, Pham QB, Mohammadi B, Karimi F, Linh NTT. Machine learning algorithm-based risk assessment of riparian wetlands in Padma River Basin of Northwest Bangladesh. Environ Sci Pollut Res Int 2021; 28:34450-34471. [PMID: 33651294 DOI: 10.1007/s11356-021-12806-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
Wetland risk assessment is a global concern especially in developing countries like Bangladesh. The present study explored the spatiotemporal dynamics of wetlands, prediction of wetland risk assessment. The wetland risk assessment was predicted based on ten selected parameters, such as fragmentation probability, distance to road, and settlement. We used M5P, random forest (RF), reduced error pruning tree (REPTree), and support vector machine (SVM) machine learning techniques for wetland risk assessment. The results showed that wetland areas at present are declining less than one-third of those in 1988 due to the construction of the dam at Farakka, which is situated at the upstream of the Padma River. The distance to the river and built-up area are the two most contributing drivers influencing the wetland risk assessment based on information gain ratio (InGR). The prediction results of machine learning models showed 64.48% of area by M5P, 61.75% of area by RF, 62.18% of area by REPTree, and 55.74% of area by SVM have been predicted as the high and very high-risk zones. The results of accuracy assessment showed that the RF outperformed than other models (area under curve: 0.83), followed by the SVM, M5P, and REPTree. Degradation of wetlands explored in this study demonstrated the negative effects on biodiversity. Therefore, to conserve and protect the wetlands, continuous monitoring of wetlands using high resolution satellite images, feeding with the ecological flow, confining built up area and agricultural expansion towards wetlands, and new wetland creation is essential for wetland management.
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Affiliation(s)
| | - Swapan Talukdar
- Research Scholars, Department of Geography, University of Gour Banga, Malda, India
| | - Susanta Mahato
- Research Scholars, Department of Geography, University of Gour Banga, Malda, India
| | - Sk Ziaul
- Research Scholars, Department of Geography, University of Gour Banga, Malda, India
| | - Kutub Uddin Eibek
- Department of Disaster management, Begum Rokeya University, Rangpur, 5400, Bangladesh
| | - Shumona Akhter
- Department of Disaster management, Begum Rokeya University, Rangpur, 5400, Bangladesh
| | - Quoc Bao Pham
- Environmental Quality, Atmospheric Science and Climate Change Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Babak Mohammadi
- Department of Physical Geography and Ecosystem Science, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden
| | - Firoozeh Karimi
- Department of Geography, environment and sustainability, University of North Carolina-Greensboro, Greensboro, NC, USA
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Linh NTT, Ha NTT, Tra NT, Anh LTT, Tuyen NV, Son NT. Medicinal Plant Centipeda Minima: A Resource of Bioactive Compounds. Mini Rev Med Chem 2021; 21:273-287. [PMID: 33087028 DOI: 10.2174/1389557520666201021143257] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/27/2020] [Accepted: 08/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Centipeda minima (the family Asteraceae) is an annual herbaceous plant native to the tropical regions, especially in eastern tropical Asia. C. minima is well-known in the list of medicinal plants with capacities in treatment of whooping cough, nasal allergy, malaria, and asthma. More than sixty reports on phytochemical and pharmacological aspects of this plant are now available, but a supportive review is insufficient. OBJECTIVE The current review aims to make a compilation of almost all of the isolated compounds from the title plant, together with their pharmacological activities. METHODOLOGY Centipeda minima is a meaningful keyword to search for previous references, while the reliable databases, such as Sci-Finder, Google Scholar, Pub Med, Science Direct, the Web of Science, Scopus, Bentham science, Taylor Francis, Springer, IOP Science were utilized at most. CONCLUSION More than one hundred secondary metabolites, classifying as terpenoids, flavonoids, mono-phenols, fatty acids, amides, and other types, were isolated from this plant. Among them, sesquiterpene lactones are dominant in either C. minima species or numerous plants of genus Centipeda. These phytochemical groups also possessed various biological results like anti-cancer, anti-bacteria, anti-allergy, anti-virus, anti-inflammation, and hepatoprotective activities. With many kinds of bioactive results such as anti-cancer and anti-inflammation, the use of C. minima plant extracts and isolated compounds for drug development seems to be a futuristic strategy.
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Affiliation(s)
- Nguyen Thi Thuy Linh
- Department of Applied Biotech, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Nguyen Thi Thu Ha
- Department of Applied Biotech, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Nguyen Thanh Tra
- Department of Applied Biotech, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Le Thi Tu Anh
- Department of Applied Biotech, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Department of Applied Biotech, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Ninh The Son
- Department of Applied Biotech, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
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21
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Ngan LTM, Tan MT, Hoang NVM, Thanh DT, Linh NTT, Hoa TTH, Nuong NTM, Hieu TT. Antibacterial activity of Hibiscus rosa-sinensis L. red flower against antibiotic-resistant strains of Helicobacter pylori and identification of the flower constituents. ACTA ACUST UNITED AC 2021; 54:e10889. [PMID: 34008759 PMCID: PMC8130102 DOI: 10.1590/1414-431x2020e10889] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 02/02/2021] [Indexed: 01/22/2023]
Abstract
Utilization of plant resources for treatment of Helicobacter pylori infections is one of the appealing approaches as rapid emergence of antibiotic-resistant strains is occurring throughout the world. Ethanol extract and its fractions from Hibiscus rosa-sinensis red flower were assessed for antibacterial and urease inhibitory activities towards forty-three clinical strains and two reference strains of H. pylori. The ethyl acetate fraction exhibited the most potent bacteriostatic activity with minimum inhibitory concentrations (MICs) of 0.2-0.25 mg/mL and minimum bactericidal concentrations (MBCs) of 1.25-1.5 mg/mL against all test strains, including forty-three strains resistant to one to four antibiotics, azithromycin (MICs, 8-256 µg/mL), erythromycin (MICs, 8-128 µg/mL), levofloxacin (MICs, 8-256 µg/mL), and/or metronidazole (MICs, 8-256 µg/mL). The fraction had similar antibacterial activities toward these test strains suggesting the preparation and the antibiotics do not have a common mechanism of anti-H. pylori activity. The fraction also had stronger effects on biofilm formation, morphological conversion, and urease activity of H. pylori than the other fractions and the ethanol extract. These flower preparations were non-toxic to three human cell lines, and nine compounds were also isolated and identified from the ethyl acetate fraction. In vivo research needs to be conducted to confirm the potential usefulness of H. rosa-sinensis flower and its constituents for effective prevention and treatment of H. pylori disease.
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Affiliation(s)
- L T M Ngan
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - M T Tan
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - N V M Hoang
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - D T Thanh
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - N T T Linh
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - T T H Hoa
- Central Laboratory for Analysis, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - N T M Nuong
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - T T Hieu
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
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22
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Singh VK, Kumar D, Singh SK, Pham QB, Linh NTT, Mohammed S, Anh DT. Development of fuzzy analytic hierarchy process based water quality model of Upper Ganga river basin, India. J Environ Manage 2021; 284:111985. [PMID: 33581496 DOI: 10.1016/j.jenvman.2021.111985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 11/11/2020] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
The ecological sustainability of rivers is in question due to severe pollution and lack of stringent regulations. Long term (1990-2016) water quality data of five stations namely Haridwar, Bareilly, Kanpur, Prayagraj and Varanasi of Upper Ganga river, India was considered for analysis using fuzzy analytical process (FAHP) based water quality index (WQI) to assess surface water quality. The value of water physical, biological and chemical parameters of temporal resolution (monthly, seasonal and yearly) indicate that value of electrical conductivity (EC), total dissolved solids (TDS), biological oxygen demand (BOD), chemical oxygen demand (COD), total alkalinity (Mg CaCO3), total hardness (Mg CaCO3), calcium (Ca), magnesium (Mg), sodium (Na), chlorine (Cl) and bicarbonate (HCO3) were observed very high compared to recommended value of Bureau of Indian Standards (BIS) and World Health Organization (WHO) at Kanpur, Prayagraj and Varanasi stations. However, low value of parameters is observed at Haridwar and Bareilly stations. Also, the high deviation was observed in water quality parameters during 1990-2010 whereas the deviation of parameters is decreased in 2011-2016. It is observed from the piper diagram that magnesium and bicarbonate at Haridwar, sodium, potassium and bicarbonate in Bareilly, Kanpur, Prayagraj and Varanasi stations are dominant during monthly and seasonal periods. The fuzzy based WQI value indicate that water quality is excellent to poor at Haridwar, while poor to unsuitable in Bareilly, Kanpur, Prayagraj and Varanasi during monthly and seasonal periods. The water quality ranges from poor to unsuitable during the 1990-2010 period and good to very poor during the 2011-2016 period at Bareilly, Kanpur, Prayagraj and Varanasi stations. Whereas very good to good during 1990-2010 and excellent to good during 2011-2016 at Haridwar. It was also determined that water quality parameters (Ca, Na+K, SO4, Hardness, Cl and Mg) and WQI values were increased with length of the stream. It indicates that drain discharge, urban growth, urban functions, ecological footprints and crop area increment were key sources of pollution.
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Affiliation(s)
- Vijay Kumar Singh
- Faculty of Agriculture Science and Technology, Mahatma Gandhi Kashi Vidhyapith, Varanasi, India
| | - Devendra Kumar
- Department of Soil and Water Conservation Engineering, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, 263145, India
| | - Sudhir Kumar Singh
- K. Banerjee Centre of Atmospheric and Ocean Studies, University of Allahabad, Prayagraj, 211002, India
| | - Quoc Bao Pham
- Environmental Quality, Atmospheric Science and Climate Change Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam; Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Nguyen Thi Thuy Linh
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang 550000, Vietnam.
| | - Safwan Mohammed
- Institution of Land Utilization, Technology and Regional Planning, University of Debrecen, Debrecen, 4032, Hungary
| | - Duong Tran Anh
- Ho Chi Minh City University of Technology (HUTECH) 475A, Dien Bien Phu, Ward 25, Binh Thanh District, Ho Chi Minh City, Vietnam
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23
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Basu T, Das A, Pham QB, Al-Ansari N, Linh NTT, Lagerwall G. Author Correction: Development of an integrated peri-urban wetland degradation assessment approach for the Chatra Wetland in eastern India. Sci Rep 2021; 11:7184. [PMID: 33762649 PMCID: PMC7991415 DOI: 10.1038/s41598-021-86634-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Tirthankar Basu
- Department of Geography, University of Gour Banga, Malda, West Bengal, 732103, India
| | - Arijit Das
- Department of Geography, University of Gour Banga, Malda, West Bengal, 732103, India
| | - Quoc Bao Pham
- Environmental Quality, Atmospheric Science and Climate Change Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Nadhir Al-Ansari
- Department of Civil, Environmental and Natural Resources Engineering, Lulea University of Technology, 97187, Luleå, Sweden
| | | | - Gareth Lagerwall
- Bioresources Engineering, School of Engineering, University of KwaZulu-Natal, Scottsville, P. Bag X01, Pietermaritzburg, 3209, Republic of South Africa.,The Centre for Water Resources Research, University of KwaZulu-Natal, Scottsville, P. Bag X01, Pietermaritzburg, 3209, Republic of South Africa
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24
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Dat TD, Viet ND, My PLT, Linh NT, Thanh VH, Linh NTT, Ngan NTK, Linh NTT, Nam HM, Phong MT, Hieu NH. The Application of Ethanolic Ultrasonication to Ameliorate the Triterpenoid Content Extracted from Vietnamese
Ganoderma lucidum
with the Examination by Gas Chromatography. ChemistrySelect 2021. [DOI: 10.1002/slct.202004242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Tran Do Dat
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
| | - Nguyen Duc Viet
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology 268 Ly Thuong Kiet Street, Ward 14, District 10 Ho Chi Minh City Vietnam
| | - Phan Le Thao My
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
| | - Nguyen Thi Linh
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
| | - Vuong Hoai Thanh
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
| | - Nguyen Thi Thuy Linh
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
| | - Nguyen Thi Kim Ngan
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
| | - Ngo Thi Thuy Linh
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
| | - Hoang Minh Nam
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology 268 Ly Thuong Kiet Street, Ward 14, District 10 Ho Chi Minh City Vietnam
| | - Mai Thanh Phong
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology 268 Ly Thuong Kiet Street, Ward 14, District 10 Ho Chi Minh City Vietnam
| | - Nguyen Huu Hieu
- VNU-HCMC Key Laboratory of Chemical Engineering and Petroleum Processing (Key CEPP Lab)
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology 268 Ly Thuong Kiet Street, Ward 14, District 10 Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Linh Trang Ward, Thu Duc District Ho Chi Minh City Vietnam
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25
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Basu T, Das A, Pham QB, Al-Ansari N, Linh NTT, Lagerwall G. Development of an integrated peri-urban wetland degradation assessment approach for the Chatra Wetland in eastern India. Sci Rep 2021; 11:4470. [PMID: 33627693 PMCID: PMC7904909 DOI: 10.1038/s41598-021-83512-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 01/28/2021] [Indexed: 01/31/2023] Open
Abstract
The loss of peri-urban wetlands is a major side effect of urbanization in India in recent days. Timely and proper assessment of wetland area change is essential for the conservation of wetlands. This study follows the integrated way of the peri-urban wetland degradation assessment in the case of medium and small-size urban agglomerations with a special focus on Chatra Wetland. Analysis of land-use and land cover (LULC) maps of the past 28 years shows a decrease of 60% area of the wetland including marshy land. This has reduced the ecosystem services value by about 71.90% over the period 1991-2018. From this end, The Land Change Modeler of IDRISI TerrSet using the combination of MLPNN and Markov Chain has been used to predict the LULC map of this region. The scenario-based modeling following the LULC conversion and nine explanatory variables suggests the complete loss of this wetland by 2045. However, the authors have also tried to present a future LULC pattern of this region based on an environmental perspective. This proposed map suggests possible areas for built-up expansion on the western side of the city without significantly affecting the environment.
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Affiliation(s)
- Tirthankar Basu
- Department of Geography, University of Gour Banga, Malda, West Bengal, 732103, India
| | - Arijit Das
- Department of Geography, University of Gour Banga, Malda, West Bengal, 732103, India
| | - Quoc Bao Pham
- Environmental Quality, Atmospheric Science and Climate Change Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Nadhir Al-Ansari
- Department of Civil, Environmental and Natural Resources Engineering, Lulea University of Technology, 97187, Luleå, Sweden
| | | | - Gareth Lagerwall
- Bioresources Engineering, School of Engineering, University of KwaZulu-Natal, Scottsville, P. Bag X01, Pietermaritzburg, 3209, Republic of South Africa
- The Centre for Water Resources Research, University of KwaZulu-Natal, Scottsville, P. Bag X01, Pietermaritzburg, 3209, Republic of South Africa
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26
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Pham QB, Mohammadpour R, Linh NTT, Mohajane M, Pourjasem A, Sammen SS, Anh DT, Nam VT. Application of soft computing to predict water quality in wetland. Environ Sci Pollut Res Int 2021; 28:185-200. [PMID: 32808123 DOI: 10.1007/s11356-020-10344-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Prediction of water quality is a critical issue because of its significant impact on human and ecosystem health. This research aims to predict water quality index (WQI) for the free surface wetland using three soft computing techniques namely, adaptive neuro-fuzzy system (ANFIS), artificial neural networks (ANNs), and group method of data handling (GMDH). Seventeen wetland points for a period of 14 months were considered for monitoring water quality parameters including conductivity, suspended solid (SS), biochemical oxygen demand (BOD), ammoniacal nitrogen (AN), chemical oxygen demand (COD), dissolved oxygen (DO), temperature, pH, phosphate nitrite, and nitrate. The sensitivity analysis performed by ANFIS indicates that the significant parameters to predict WQI are pH, COD, AN, and SS. The results indicated that ANFIS with Nash-Sutcliffe Efficiency (NSE = 0.9634) and mean absolute error (MAE = 0.0219) has better performance to predict the WQI comparing with ANNs (NSE = 0.9617 and MAE = 0.0222) and GMDH (NSE = 0.9594 and MAE = 0.0245) models. However, ANNs provided a comparable prediction and the GMDH can be considered as a technique with an acceptable prediction for practical purposes. The findings of this study could be used as an effective reference for policy makers in the field of water resource management. Decreasing variables, reduction of running time, and high speed of these approaches are the most important reasons to employ them in any aquatic environment worldwide.
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Affiliation(s)
- Quoc Bao Pham
- Environmental Quality, Atmospheric Science and Climate Change Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Reza Mohammadpour
- Department of Civil Engineering, Islamic Azad University, Estahban Branch, Estahban, Fars, Iran
| | - Nguyen Thi Thuy Linh
- Institute of Research and Development, Duy Tan University, Danang, 550000, Vietnam.
- Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, 550000, Vietnam.
| | - Meriame Mohajane
- Soil and Environment Microbiology Team, Department of Biology, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco
- Water Sciences and Environment Engineering Team, Department of Geology, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco
| | - Ameneh Pourjasem
- Department of Civil Engineering, Islamic Azad University, Estahban Branch, Estahban, Fars, Iran
| | - Saad Sh Sammen
- Department of Civil Engineering, College of Engineering, Diyala University, Diyala Governorate, Iraq
| | - Duong Tran Anh
- Department of International Cooperation and Research, Van Lang University (VLU), Ho Chi Minh City, Vietnam
| | - Van Thai Nam
- Ho Chi Minh City University of Technology (HUTECH), 475A Dien Bien Phu Street, Binh Thanh District, Ho Chi Minh City, Vietnam
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27
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Linh NTT, Kumeda Y, Matsushita M, Hironiwa T, Furuta M. Application of gamma radiation for disinfection of fungi in a large volume of historical archives damaged by flood following Typhoon Hagibis 2019, Japan: A case report. Biocontrol Sci 2021; 26:55-59. [PMID: 33716250 DOI: 10.4265/bio.26.55] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
A large volume of historical archives was extensively damaged by flood water, following Typhoon Hagibis in Fukushima, Japan, in October 2019. They were rescued from the stricken area within a week, however, the prolonged exposure of paper documents to water caused severe biodegradation by fungal growth. To disinfect fungi, the paper documents were exposed to gamma radiations emitted by a source of Cobalt 60 by the industrial irradiation service. The wet paper documents were mainly contaminated with hydrophilic and cellulolytic fungi, including Trichoderma, Stachybotrys, and Fusarium; no fungi grew after irradiation. These results indicated that the average absorbed dosage from 13.1 kGy to 16.1 kGy were sufficient to disinfect paper documents heavily contaminated with fungi. In the present study, we demonstrated the successful practical use of irradiation in fungi-damaged paper documents using a commercial gamma-irradiation facility.
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Affiliation(s)
- Nguyen Thi Thuy Linh
- Department of Quantum and Radiation Technology, Graduate School of Engineering, Osaka Prefecture University.,Faculty of Biology, Dalat University
| | - Yuko Kumeda
- Research Center of Microorganism Control, Organization for Research Promotion, Osaka Prefecture University.,Center for Fungal Consultation
| | | | | | - Masakazu Furuta
- Department of Quantum and Radiation Technology, Graduate School of Engineering, Osaka Prefecture University.,Research Center of Microorganism Control, Organization for Research Promotion, Osaka Prefecture University
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28
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Sahoo S, Chakraborty S, Pham QB, Sharifi E, Sammen SS, Vojtek M, Vojteková J, Elkhrachy I, Costache R, Linh NTT. Recognition of district-wise groundwater stress zones using the GLDAS-2 catchment land surface model during lean season in the Indian state of West Bengal. Acta Geophys. 2021; 69:175-198. [PMCID: PMC7778431 DOI: 10.1007/s11600-020-00509-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 11/04/2020] [Indexed: 06/14/2023]
Abstract
Water is essential for irrigation, drinking and industrial purposes from global to the regional scale. The groundwater considered a significant water resource specifically in regions where the surface water is not sufficient. Therefore, the research problem is focused on district-wise sustainable groundwater management due to urbanization. The number of impervious surface areas like roofing on built-up areas, concrete and asphalt road surface were increased due to the level of urban development. Thus, these surface areas can inhibit infiltration and surface retention by the impact of urbanization because vegetation/forest areas are decreased. The present research examines the district-wise spatiotemporal groundwater storage (GWS) changes under terrestrial water storage using the global land data assimilation system-2 (GLDAS-2) catchment land surface model (CLSM) from 2000 to 2014 in West Bengal, India. The objective of the research is mainly focused on the delineation of groundwater stress zones (GWSZs) based on ten biophysical and hydrological factors according to the deficiency of groundwater storage using the analytic hierarchy process by the GIS platform. Additionally, the spatiotemporal soil moisture (surface soil moisture, root zone soil moisture, and profile soil moisture) changes for the identification of water stress areas using CLSM were studied. Finally, generated results were validated by the observed groundwater level and groundwater recharge data. The sensitivity analysis has been performed for GWSZs mapping due to the deficit of groundwater storage. Three correlation coefficient methods (Kendall, Pearson and Spearman) are applied for the interrelationship between the most significant parameters for the generation of GWSZ from sensitivity analysis. The results show that the northeastern (max: 1097.35 mm) and the southern (max: 993.22 mm) parts have high groundwater storage due to higher amount of soil moisture and forest cover compared to other parts of the state. The results also show that the maximum and minimum total annual groundwater recharge shown in Paschim Medinipore [(361,148.51 hectare-meter (ham)] and Howrah (31,510.46 ham) from 2012 to 2013. The generated outcome can create the best sustainable groundwater management practices based upon the human attitude toward risk.
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Affiliation(s)
- Satiprasad Sahoo
- Centre for Environment, Indian Institute of Technology Guwahati, Guwahati, 781039 India
| | - Subha Chakraborty
- Department of Architecture, Town and Regional Planning, IIEST, Shibpur, Howrah, 711 103 India
| | - Quoc Bao Pham
- Environmental Quality, Atmospheric Science and Climate Change Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Ehsan Sharifi
- Section 4.4 Hydrology, GFZ German Research Centre for Geosciences, 14473 Potsdam, Germany
| | - Saad Sh. Sammen
- Department of Civil Engineering, College of Engineering, University of Diyala, Baqubah, Diyala Governorate Iraq
| | - Matej Vojtek
- Department of Geography and Regional Development, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Trieda A. Hlinku 1, 94901 Nitra, Slovakia
| | - Jana Vojteková
- Department of Geography and Regional Development, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Trieda A. Hlinku 1, 94901 Nitra, Slovakia
| | - Ismail Elkhrachy
- Najran University, College of Engineering, Civil Engineering Department, King Abdulaziz Road, P.O Box 1988, Najran, Saudi Arabia
- Al-Azhar University, Faculty of Engineering, Civil Engineering Department, Nasr City, Cairo 11371 Egypt
| | - Romulus Costache
- Research Institute of the University of Bucharest, 90-92 Sos. Panduri, 5th District, 050663 Bucharest, Romania
- National Institute of Hydrology and Water Management, București-Ploiești Road, 97E, 1st District, 013686 Bucharest, Romania
| | - Nguyen Thi Thuy Linh
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam
- Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang 550000, Vietnam
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29
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Atabati H, Kassiri H, Shamloo E, Akbari M, Atamaleki A, Sahlabadi F, Linh NTT, Rostami A, Fakhri Y, Khaneghah AM. The association between the lack of safe drinking water and sanitation facilities with intestinal Entamoeba spp infection risk: A systematic review and meta-analysis. PLoS One 2020; 15:e0237102. [PMID: 33147225 PMCID: PMC7641376 DOI: 10.1371/journal.pone.0237102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Intestinal protozoa infections are responsible for considerable morbidity and mortality, especially where the exposed population suffers from a lack of drinking water and sanitation facilities. In this study, the association between the lack of safe drinking water and sanitation (toilet) facilities with intestinal Entamoeba spp infection in the children (5-11 years), adult (18-55 years), and all age (5-55 years) were assessed. For this purpose, some of the international databases such as Scopus, PubMed, Web of Science, and Embase were screened to up to 7 June 2019 in order to retrieve the related citations. Also, the pooled odds ratios (ORs) following 95% confidence intervals (CIs) were calculated using a random-effects model. Twenty-nine articles with 36 studies were included while the OR extracted or calculated by using 2 × 2 contingency tables. However, the ingestion of contaminated water insignificantly can increase the odds ratio (OR) of Entamoeba spp infection (OR 1.01, (95% confidence interval [CI] 0.58 to 1.43), no access to sanitation (toilet) facilities significantly can increase odds of Entamoeba spp infection (OR 1.18, 95% CI 1.05 to 1.32). The meta-regression analysis showed that over time, odds of intestinal Entamoeba spp infection increased in both lack of safe drinking water (Coefficient: 3.24, P-value < 0.01) and sanitation (toilet) facilities (Coefficient: 2.36, P-value < 0.05) subgroups. Considering the findings, lack of safe drinking water resulted in a further increase in intestinal Entamoeba spp infection among adult (OR: 2.76), children (OR = 0.57) and all age groups (OR: 1.50), and also lack of sanitation (toilet) facilities resulted in further increase intestinal Entamoeba spp infection in children (OR: 1.06), adult (OR: 1.26) and all age (OR: 1.16). In this context, the lack of safe drinking water and sanitation facilities (toilet) was associated with a high risk of intestinal Entamoeba spp infection. Further attempts to providing public health facilities can control the prevalence of intestinal Entamoeba spp.
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Affiliation(s)
- Hamid Atabati
- Department of the environment faculty of fishery and environment, Gorgan University of agriculture and natural resources sciences, Golestan Province, Gorgan, Iran
| | - Hamid Kassiri
- Department of Medical Entomology, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ehsan Shamloo
- Noncommunicable Diseases Research Center, Department of Food Science and Technology, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Mitra Akbari
- Amiralmomenin Hospital, School of Medicine, Guilan University of Medical Science, Rasht, Iran
| | - Ali Atamaleki
- Department of Environmental Health Engineering, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Sahlabadi
- Department of Environmental Health Engineering, Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nguyen Thi Thuy Linh
- Institute of Research and Development, Duy Tan University, Danang, Vietnam
- Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, Vietnam
| | - Ali Rostami
- Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Yadolah Fakhri
- Social Determinants in Health Promotion Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Amin Mousavi Khaneghah
- Department of Food Science, Faculty of Food Engineering, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
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30
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Abba SI, Pham QB, Saini G, Linh NTT, Ahmed AN, Mohajane M, Khaledian M, Abdulkadir RA, Bach QV. Implementation of data intelligence models coupled with ensemble machine learning for prediction of water quality index. Environ Sci Pollut Res Int 2020; 27:41524-41539. [PMID: 32686045 DOI: 10.1007/s11356-020-09689-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 06/10/2020] [Indexed: 05/14/2023]
Abstract
In recent decades, various conventional techniques have been formulated around the world to evaluate the overall water quality (WQ) at particular locations. In the present study, back propagation neural network (BPNN) and adaptive neuro-fuzzy inference system (ANFIS), support vector regression (SVR), and one multilinear regression (MLR) are considered for the prediction of water quality index (WQI) at three stations, namely Nizamuddin, Palla, and Udi (Chambal), across the Yamuna River, India. The nonlinear ensemble technique was proposed using the neural network ensemble (NNE) approach to improve the performance accuracy of the single models. The observed WQ parameters were provided by the Central Pollution Control Board (CPCB) including dissolved oxygen (DO), pH, biological oxygen demand (BOD), ammonia (NH3), temperature (T), and WQI. The performance of the models was evaluated by various statistical indices. The obtained results indicated the feasibility of the developed data intelligence models for predicting the WQI at the three stations with the superior modelling results of the NNE. The results also showed that the minimum values for root mean square (RMS) varied between 0.1213 and 0.4107, 0.003 and 0.0367, and 0.002 and 0.0272 for Nizamuddin, Palla, and Udi (Chambal), respectively. ANFIS-M3, BPNN-M4, and BPNN-M3 improved the performance with regard to an absolute error by 41%, 4%, and 3%, over other models for Nizamuddin, Palla, and Udi (Chambal) stations, respectively. The predictive comparison demonstrated that NNE proved to be effective and can therefore serve as a reliable prediction approach. The inferences of this paper would be of interest to policymakers in terms of WQ for establishing sustainable management strategies of water resources.
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Affiliation(s)
- Sani Isah Abba
- Department of Physical Planning Development, Yusuf Maitama Sule University Kano, Kano, Nigeria
| | - Quoc Bao Pham
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam
- Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, 550000, Vietnam
| | - Gaurav Saini
- Department of Civil Engineering, Sharda University, Greater Noida, Uttar Pradesh, India
| | | | - Ali Najah Ahmed
- Institute of Energy Infrastructure (IEI), Civil Engineering Department, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000, Kajang, Selangor, Malaysia
| | - Meriame Mohajane
- Soil and Environment Microbiology Team, Department of Biology, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco
- Water Sciences and Environment Engineering Team, Department of Geology, Faculty of Sciences, Moulay Ismail University, Meknes, Morocco
| | - Mohammadreza Khaledian
- Water Engineering Dept., Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran
- Department of Water Engineering and Environment, Caspian Sea Basin Research Center, Rasht, Iran
| | - Rabiu Aliyu Abdulkadir
- Department of Electrical and Electronic, Kano University of Science & Technology, Wudil, Wudil, Nigeria
| | - Quang-Vu Bach
- Sustainable Management of Natural Resources and Environment Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
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Emamhadi MA, Sarafraz M, Akbari M, Thai VN, Fakhri Y, Linh NTT, Mousavi Khaneghah A. Nanomaterials for food packaging applications: A systematic review. Food Chem Toxicol 2020; 146:111825. [PMID: 33096197 DOI: 10.1016/j.fct.2020.111825] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/28/2020] [Accepted: 10/17/2020] [Indexed: 12/17/2022]
Abstract
The application of nanotechnology in food packaging is widely considered during the last two decades. In this regard, numerous studies have been conducted regarding applying nanomaterials such as zinc oxide, clay, silver, carbon nanotube, titanium dioxide, and copper, and copper oxide in food packaging which were summarized in the current study. The employing of nano food packaging increases the physicochemical quality of food (color, flavor, moisture content, weight, bioavailability, and texture) and reduces the microbial load by cell-membrane function, Trojan-horse, and reactive oxygen mechanisms while they improve the barrier/mechanical properties of food packaging. Although nano food packaging has many advantages for public health, the associated toxicity due to migration, especially in acidic conditions, is considerable. Further studies regarding the advantages and disadvantages of this technique are recommended.
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Affiliation(s)
- Mohammad Ali Emamhadi
- Department of Forensic Medicine and Toxicology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mansour Sarafraz
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mitra Akbari
- Department of Eye, Amiralmomenin Hospital, School of Medicine, Guilan University of Medical Science, Rasht, Iran
| | - Van Nam Thai
- Ho Chi Minh City University of Technology (HUTECH) 475A, Dien Bien Phu, Ward 25, Binh Thanh District, Ho Chi Minh City, Vietnam
| | - Yadolah Fakhri
- Food Health Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Nguyen Thi Thuy Linh
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang 550000, Vietnam.
| | - Amin Mousavi Khaneghah
- Department of Food Science, Faculty of Food Engineering, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
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de Alwis R, My Phuc T, Yu Hang Bai B, Le Thi Quynh N, Thi Thanh Tam P, Thi Ngoc Dung T, Thi Thanh Nhan N, Vinh C, Van Hien H, Thanh Hoang Nhat L, Thi Thu Hong N, Thi Mong Tuyen N, Thi Thuy Trang H, Phuong Thao L, Thi Ngoc Diep V, Thi Hai Chau P, Quan Thinh L, Thi Ngoc Thu H, Nguyet Hang N, Cong Danh M, Doan Hao T, Anh Dao T, Dai L, Thi Huyen Diu V, Thi En N, Thi Tuyet Hanh N, Thi Hanh L, Pham Thu Hien H, Thi Thuy Linh N, Darton TC, Thwaites GE, Kestelyn E, Lan Vi L, Thi Thuy Tien B, Thi Diem Tuyet H, Anderson C, Baker S. The influence of human genetic variation on early transcriptional responses and protective immunity following immunization with Rotarix vaccine in infants in Ho Chi Minh City in Vietnam: A study protocol for an open single-arm interventional trial. Wellcome Open Res 2020. [DOI: 10.12688/wellcomeopenres.16090.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Rotavirus (RoV) remains the leading cause of acute gastroenteritis in infants and children aged under five years in both high- and low-middle-income countries (LMICs). In LMICs, RoV infections are associated with substantial mortality. Two RoV vaccines (Rotarix and Rotateq) are widely available for use in infants, both of which have been shown to be highly efficacious in Europe and North America. However, for unknown reasons, these RoV vaccines have markedly lower efficacy in LMICs. We hypothesize that poor RoV vaccine efficacy across in certain regions may be associated with genetic heritability or gene expression in the human host. Methods/design: We designed an open-label single-arm interventional trial with the Rotarix RoV vaccine to identify genetic and transcriptomic markers associated with generating a protective immune response against RoV. Overall, 1,000 infants will be recruited prior to Expanded Program on Immunization (EPI) vaccinations at two months of age and vaccinated with oral Rotarix vaccine at two and three months, after which the infants will be followed-up for diarrheal disease until 18 months of age. Blood sampling for genetics, transcriptomics, and immunological analysis will be conducted before each Rotarix vaccination, 2-3 days post-vaccination, and at each follow-up visit (i.e. 6, 12 and 18 months of age). Stool samples will be collected during each diarrheal episode to identify RoV infection. The primary outcome will be Rotarix vaccine failure events (i.e. symptomatic RoV infection despite vaccination), secondary outcomes will be antibody responses and genotypic characterization of the infection virus in Rotarix failure events. Discussion: This study will be the largest and best powered study of its kind to be conducted to date in infants, and will be critical for our understanding of RoV immunity, human genetics in the Vietnam population, and mechanisms determining RoV vaccine-mediated protection. Registration: ClinicalTrials.gov, ID: NCT03587389. Registered on 16 July 2018.
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Cham BT, Linh NTT, Thao DT, Anh NTH, Tam NT, Anh BK, Muscari I, Adorisio S, Sung TV, Thuy TT, Delfino DV. Cell Growth Inhibition of Saponin XII from Dipsacus japonicus Miq. on Acute Myeloid Leukemia Cells. Molecules 2020; 25:molecules25153325. [PMID: 32707961 PMCID: PMC7435407 DOI: 10.3390/molecules25153325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/17/2020] [Accepted: 07/19/2020] [Indexed: 11/30/2022] Open
Abstract
In previous studies, we isolated the known compound saponin XII from the roots of Dipsacus japonicus Miq. Here, we show that this compound reduced the number of acute myeloid leukemia OCI-AML3 cells as evaluated by a hemocytometer. Flow cytometry analyses demonstrated that the reported activity was associated with a significant increase of apoptosis and of cells in the G0/G1 phase of the cell cycle, with a decrease of cells in the S and G2/M phases. Thus, the inhibition of cell growth in OCI-AML3 cells was due to antiproliferative and pro-apoptotic effects. Interestingly, the bioactivity of saponin XII exerted its effect at a concentration as low as 1 µg/mL.
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Affiliation(s)
- Ba Thi Cham
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.T.C.); (N.T.T.L.); (D.T.T.); (N.T.H.A.); (N.T.T.)
- Department of Natural Products Research, Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.K.A.); (T.V.S.)
| | - Nguyen Thi Thuy Linh
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.T.C.); (N.T.T.L.); (D.T.T.); (N.T.H.A.); (N.T.T.)
- Department of Natural Products Research, Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.K.A.); (T.V.S.)
| | - Do Thi Thao
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.T.C.); (N.T.T.L.); (D.T.T.); (N.T.H.A.); (N.T.T.)
- Institute of Biotechnology, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam
| | - Nguyen Thi Hoang Anh
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.T.C.); (N.T.T.L.); (D.T.T.); (N.T.H.A.); (N.T.T.)
- Department of Natural Products Research, Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.K.A.); (T.V.S.)
| | - Nguyen Thanh Tam
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.T.C.); (N.T.T.L.); (D.T.T.); (N.T.H.A.); (N.T.T.)
- Department of Natural Products Research, Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.K.A.); (T.V.S.)
| | - Bui Kim Anh
- Department of Natural Products Research, Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.K.A.); (T.V.S.)
| | - Isabella Muscari
- Section of onco-hematology, Department of Medicine, University of Perugia, 06132 Perugia, Italy;
| | - Sabrina Adorisio
- Foligno Nursing School, Department of Medicine, University of Perugia, 06132 Perugia, Italy;
| | - Tran Van Sung
- Department of Natural Products Research, Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.K.A.); (T.V.S.)
| | - Trinh Thi Thuy
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.T.C.); (N.T.T.L.); (D.T.T.); (N.T.H.A.); (N.T.T.)
- Department of Natural Products Research, Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi 100000, Vietnam; (B.K.A.); (T.V.S.)
- Correspondence: (T.T.T.); (D.V.D.); Tel.: +39-075-585-8328 (D.V.D.)
| | - Domenico V. Delfino
- Foligno Nursing School, Department of Medicine, University of Perugia, 06132 Perugia, Italy;
- Section of Pharmacology, Department of Medicine, University of Perugia, Piazzale Severi, S. Andrea delle Fratte, 06132 Perugia, Italy
- Correspondence: (T.T.T.); (D.V.D.); Tel.: +39-075-585-8328 (D.V.D.)
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Costache R, Pham QB, Avand M, Thuy Linh NT, Vojtek M, Vojteková J, Lee S, Khoi DN, Thao Nhi PT, Dung TD. Novel hybrid models between bivariate statistics, artificial neural networks and boosting algorithms for flood susceptibility assessment. J Environ Manage 2020; 265:110485. [PMID: 32421551 DOI: 10.1016/j.jenvman.2020.110485] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 03/08/2020] [Accepted: 03/22/2020] [Indexed: 06/11/2023]
Abstract
Across the world, the flood magnitude is expected to increase as well as the damage caused by their occurrence. In this case, the prediction of areas which are highly susceptible to these phenomena becomes very important for the authorities. The present study is focused on the evaluation of flood potential within Trotuș river basin in Romania using six ensemble models created by the combination of Analytical Hierarchy Process (AHP), Certainty Factor (CF) and Weights of Evidence (WOE) on one hand, and Gradient Boosting Trees (GBT) and Multilayer Perceptron (MLP) on the other hand. A number of 12 flood predictors, 172 flood locations and 172 non-flood locations were used. A percentage of 70% of flood and non-flood locations were used as input in models. From the input data, 70% were used as training sample and 30% as validating sample. The highest accuracy was obtained by the MLP-CF model in terms of both training (0.899) and testing (0.889) samples. A percentage between 21.88% and 36.33% of study area is covered with high and very high flood potential. The results validation, performed through the ROC Curve method, highlights that the MLP-CF model provided the most accurate results.
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Affiliation(s)
- Romulus Costache
- Research Institute of the University of Bucharest, 90-92 Sos. Panduri, 5th District, 050663, Bucharest, Romania; National Institute of Hydrology and Water Management, București-Ploiești Road, 97E, 1st District, 013686, Bucharest, Romania
| | - Quoc Bao Pham
- Environmental Quality, Atmospheric Science and Climate Change Research Group, Ton Duc Thang University, Ho Chi Minh City, Viet Nam; Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
| | - Mohammadtaghi Avand
- Department of Watershed Management Engineering, College of Natural Resources, Tarbiat Modares University, Tehran, 14115-111, Iran
| | | | - Matej Vojtek
- Department of Geography and Regional Development, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Trieda A. Hlinku 1, 94974, Nitra, Slovakia
| | - Jana Vojteková
- Department of Geography and Regional Development, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Trieda A. Hlinku 1, 94974, Nitra, Slovakia
| | - Sunmin Lee
- Department of Geoinformatics, University of Seoul, 163 Seoulsiripdaero, Dongdaemun-gu, Seoul, 02504, South Korea; Center for Environmental Assessment Monitoring, Environmental Assessment Group, Korea Environment Institute (KEI), 370 Sicheong-daero, Sejong, 30147, South Korea
| | - Dao Nguyen Khoi
- Faculty of Environment, University of Science, Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Viet Nam
| | - Pham Thi Thao Nhi
- Institute of Research and Development, Duy Tan University, Danang, 550000, Viet Nam.
| | - Tran Duc Dung
- Center of Water Management and Climate Change, Institute for Environment and Resources, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, Viet Nam
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Pham QB, Afan HA, Mohammadi B, Ahmed AN, Linh NTT, Vo ND, Moazenzadeh R, Yu PS, El-Shafie A. Hybrid model to improve the river streamflow forecasting utilizing multi-layer perceptron-based intelligent water drop optimization algorithm. Soft comput 2020. [DOI: 10.1007/s00500-020-05058-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Linh NTT, Danova A, Truong TL, Chavasiri W, Phung NKP, Chi HBL. Chemical constituents of chloroform extract from the lichen Ramalina peruviana
Arch (Ramalinaceae). VJCH 2020. [DOI: 10.1002/vjch.201900172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nguyen Thi Thuy Linh
- Department of Chemistry, University of Science, National University HCM City; Ho Chi Minh City 70000 Viet Nam
| | - Ade Danova
- Department of Chemistry, Faculty of Science, Chulalongkorn University; Bangkok Thailand
| | - Tuong Lam Truong
- Department of Chemistry, Faculty of Science, Chulalongkorn University; Bangkok Thailand
| | - Warinthorn Chavasiri
- Department of Chemistry, Faculty of Science, Chulalongkorn University; Bangkok Thailand
| | - Nguyen Kim Phi Phung
- Department of Chemistry, University of Science, National University HCM City; Ho Chi Minh City 70000 Viet Nam
| | - Huynh Bui Linh Chi
- Department of Nature, Dong Nai University; Dong Nai Province 76000 Viet Nam
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37
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Nu DTT, Duyen NTM, Linh NTT, Van Hoang C, Hung NP. Preparation and characterization of nano δ-MnO 2
-blended cellulose acetate membrane. VJCH 2020. [DOI: 10.1002/vjch.2019000115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dang Thi To Nu
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
| | - Nguyen Thi My Duyen
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
| | - Nguyen Thi Thuy Linh
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
| | - Cao Van Hoang
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
| | - Nguyen Phi Hung
- Department of Chemistry, Faculty of Natural Sciences; Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
- Institute of Pedagogical and Educational Science (IPES), Quy Nhon University; 170 An Duong Vuong Nguyen Van Cu, Quy Nhơn City, Binh Dinh province 55000 Viet Nam
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38
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Hau DV, Sa NH, Tam NT, Diep NT, Hoang Anh NT, Thuy Linh NT, Ngoc Ni HT, Adorisio S, Delfino DV, Thuy TT. Pro-apoptoticeffect of diterpenoids from Fokienia hodginsii on acute myeloid leukemia cells. Nat Prod Res 2019; 35:4685-4689. [PMID: 31872777 DOI: 10.1080/14786419.2019.1705818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Previously, we isolated four known diterpenoids, trans-communic acid (1), 13-oxo-15,16-dinor-labda-8(17), 11E-diene-19-oic acid (2), 3β-hydroxytotarol (3), and totarolone (4) from Fokienia hodginsii leaves. Further study demonstrated the antiproliferative activity of all four compounds in acute myeloid leukemia (OCI-AML) cells due to impaired cell cycle progression. Interestingly, 3β-hydroxytotarol (3) had very powerful bioactivity at low concentrations (5 µg/mL).
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Affiliation(s)
- Dang Viet Hau
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Hoang Sa
- Department of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Science and Technology, Khanh Hoa University, Nha Trang, Vietnam
| | - Nguyen Thanh Tam
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Thi Diep
- Department of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Thi Hoang Anh
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nguyen Thi Thuy Linh
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | | | | | - Domenico V Delfino
- Foligno Nursing School, University of Perugia, Perugia, Italy.,Section of Pharmacology, Department of Medicine, University of Perugia, Perugia, Italy
| | - Trinh Thi Thuy
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
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39
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Abstract
Phytochemical investigation and chromatographic separation of extracts from the aerial parts of Dianella ensifolia (L.) DC. (synonym Dianella nemorosa Lam. Ex. Schiler f.) led to the isolation of 10 compounds, the structures of which were determined by HR-ESI-MS and 1 D- and 2 D-NMR spectroscopies, and by comparisons with published studies. Among the isolated compounds were three flavans, a biflavan, a biflavone, a tetralone, a naphthalen glycoside, an aromatic compound, and two steroids. Six of these were known chemicals, while three were identified as new compounds: 7-acetyl-4R,8-dihydroxy-6-methyl-1-tetralone, 2(S),2',4'-dihydroxy-7-methoxyflavan, and diaensi-biflavan. 2(S),7,4'-dimethoxy flavan was obtained for the first time as a natural product.
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Affiliation(s)
- Le Thi Hong Nhung
- Faculty of Chemical Technology, Hanoi University of Industry, Bac Tu Liem, Ha Noi, Vietnam
| | - Nguyen Thi Thuy Linh
- Laboratory of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Chemistry Graduate, University of Science and Technology, VAST, Hanoi, Vietnam
| | - Ba Thi Cham
- Laboratory of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Chemistry Graduate, University of Science and Technology, VAST, Hanoi, Vietnam
| | - Trinh Thi Thuy
- Laboratory of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Chemistry Graduate, University of Science and Technology, VAST, Hanoi, Vietnam
| | - Nguyen Thanh Tam
- Laboratory of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Chemistry Graduate, University of Science and Technology, VAST, Hanoi, Vietnam
| | - Dao Duc Thien
- Laboratory of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Pham Thi Mai Huong
- Faculty of Chemical Technology, Hanoi University of Industry, Bac Tu Liem, Ha Noi, Vietnam
| | - Vu Minh Tan
- Faculty of Chemical Technology, Hanoi University of Industry, Bac Tu Liem, Ha Noi, Vietnam
| | - Bui Huu Tai
- Department of Structural Research, Institute of Marine Biochemistry, VAST, Hanoi, Vietnam
| | - Nguyen Thi Hoang Anh
- Laboratory of Natural Products Research, Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam.,Department of Chemistry Graduate, University of Science and Technology, VAST, Hanoi, Vietnam
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40
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Sa NH, Tam NT, Quan TD, Anh NTH, Linh NTT, Nhung LTH, Adorisio S, Delfino DV, Van Sung T, Thuy TT. Antiproliferative activity of isolated compounds from Pinus dalatensis
and Pinus krempfii
on acute myeloid Leukemia cells. VJCH 2019. [DOI: 10.1002/vjch.201900062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nguyen Hoang Sa
- Graduate University of Science and Technology; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
- University of Khanh Hoa, 1 Chanh Loc, Loc Tho; Nha Trang Khanh Hoa 650000 Viet Nam
| | - Nguyen Thanh Tam
- Graduate University of Science and Technology; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Tran Duc Quan
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen Thi Hoang Anh
- Graduate University of Science and Technology; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Nguyen Thi Thuy Linh
- Graduate University of Science and Technology; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Le Thi Hong Nhung
- Hanoi University of Industry, 298, Cau Dien Str, Minh Khai; Bac Tu Liem Hanoi 100000 Viet Nam
| | - Sabrina Adorisio
- Department of Medicine, Section of Pharmacology; University of Perugia; Perugia Italy
| | - Domenico V Delfino
- Department of Medicine, Section of Pharmacology; University of Perugia; Perugia Italy
- Foligno Nursing School; University of Perugia; Perugia Italy
| | - Tran Van Sung
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
| | - Trinh Thi Thuy
- Graduate University of Science and Technology; Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay; Hanoi 100000 Viet Nam
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41
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Abstract
Three-dimensional (3D) tissue-engineered constructs with bio-mimicry cell-cell and cell-matrix interactions are useful in regenerative medicine. In cell-dense and matrix-poor tissues of the internal organs, cells support one another via cell-cell interactions, supplemented by small amount of the extra-cellular matrices (ECM) secreted by the cells. Here we connect HepG2 cells directly but transiently with inter-cellular polymeric linker to facilitate cell-cell interaction and aggregation. The linker consists of a non-toxic low molecular-weight polyethyleneimine (PEI) backbone conjugated with multiple hydrazide groups that can aggregate cells within 30 min by reacting with the aldehyde handles on the chemically modified cell-surface glycoproteins. The cells in the cellular aggregates proliferated; and maintained the cortical actin distribution of the 3D cell morphology while non-aggregated cells died over 7 days of suspension culture. The aggregates lost distinguishable cell-cell boundaries within 3 days; and the ECM fibers became visible around cells from day 3 onwards while the inter-cellular polymeric linker disappeared from the cell surfaces over time. The transient inter-cellular polymeric linker can be useful for forming 3D cellular and tissue constructs without bulk biomaterials or extensive network of engineered ECM for various applications.
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Affiliation(s)
- Siew-Min Ong
- Institute of Biotechnology and Nanotechnology, A*STAR, The Nanos, Singapore
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