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Wang Z, Cai X, Ren Z, Shao Y, Xu Y, Fu L, Zhu Y. Piceatannol as an Antiviral Inhibitor of PRV Infection In Vitro and In Vivo. Animals (Basel) 2023; 13:2376. [PMID: 37508153 PMCID: PMC10375968 DOI: 10.3390/ani13142376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Pseudorabies virus (PRV) belongs to the family Herpesviridae. PRV has a wide host range and can cause cytopathic effects (CPEs) in PK-15 cells. Therefore, PRV was used as a model to study the antiviral activity of piceatannol. The results showed that piceatannol could restrain PRV multiplication in PK-15 cells in a dose-dependent manner. The 50% inhibitory concentration (IC50) was 0.0307 mg/mL, and the selectivity index (SI, CC50/IC50) was 3.68. Piceatannol could exert an anti-PRV effect by reducing the transcription level of viral genes, inhibiting PRV-induced apoptosis and elevating the levels of IL-4, TNF-α and IFN-γ in the serum of mice. Animal experiments showed that piceatannol could delay the onset of disease, reduce the viral load in the brain and kidney and reduce the pathological changes in the tissues and organs of the mice to improve the survival rate of the mice (14.3%). Therefore, the anti-PRV activity of piceatannol in vivo and in vitro was systematically evaluated in this study to provide scientific data for developing a new alternative measure for controlling PRV infection.
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Affiliation(s)
- Zhiying Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Xiaojing Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Zhiyuan Ren
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Yi Shao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Yongkang Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Lian Fu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
| | - Yan Zhu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150038, China
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Zhang X, Chen S, Li X, Zhang L, Ren L. Flavonoids as Potential Antiviral Agents for Porcine Viruses. Pharmaceutics 2022; 14:pharmaceutics14091793. [PMID: 36145539 PMCID: PMC9501777 DOI: 10.3390/pharmaceutics14091793] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/20/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Flavonoids are types of natural substances with phenolic structures isolated from a variety of plants. Flavonoids have antioxidant, anti-inflammatory, anticancer, and antiviral activities. Although most of the research or applications of flavonoids are focused on human diseases, flavonoids also show potential applicability against porcine virus infection. This review focuses on the recent progress in antiviral mechanisms of potential flavonoids against the most common porcine viruses. The mechanism discussed in this paper may provide a theoretical basis for drug screening and application of natural flavonoid compounds and flavonoid-containing herbs to control porcine virus infection and guide the research and development of pig feed additives.
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Salles TS, Meneses MDF, Caldas LA, Sá-Guimarães TE, de Oliveira DM, Ventura JA, Azevedo RC, Kuster RM, Soares MR, Ferreira DF. Virucidal and antiviral activities of pomegranate (Punica granatum) extract against the mosquito-borne Mayaro virus. Parasit Vectors 2021; 14:443. [PMID: 34479605 PMCID: PMC8414858 DOI: 10.1186/s13071-021-04955-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 08/14/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The arthropod-borne Mayaro virus (MAYV) causes "Mayaro fever," a disease of medical significance, primarily affecting individuals in permanent contact with forested areas in tropical South America. Recently, MAYV has attracted attention due to its likely urbanization. There are currently no licensed drugs against most mosquito-transmitted viruses. Punica granatum (pomegranate) fruits cultivated in Brazil have been subjected to phytochemical investigation for the identification and isolation of antiviral compounds. In the present study, we explored the antiviral activity of pomegranate extracts in Vero cells infected with Mayaro virus. METHODS The ethanol extract and punicalagin of pomegranate were extracted solely from the shell and purified by chromatographic fractionation, and were chemically identified using spectroscopic techniques. The cytotoxicity of the purified compounds was measured by the dye uptake assay, while their antiviral activity was evaluated by a virus yield inhibition assay. RESULTS Pomegranate ethanol extract (CC50 = 588.9, IC50 = 12.3) and a fraction containing punicalagin as major compound (CC50 = 441.5, IC50 = 28.2) were shown to have antiviral activity (SI 49 and 16, respectively) against Mayaro virus, an alphavirus. Immunofluorescence analysis showed the virucidal effect of pomegranate extract, and transmission electron microscopy (TEM) revealed damage in viral particles treated with this extract. CONCLUSIONS The P. granatum extract is a promising source of antiviral compounds against the alphavirus MAYV and represents an excellent candidate for future studies with other enveloped RNA viruses.
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Affiliation(s)
- Tiago Souza Salles
- Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. .,Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | | | - Lucio Ayres Caldas
- National Institute of Science and Technology for Structural Biology and Bioimaging, INBEB, Rio de Janeiro, RJ, Brazil.,Laboratory of Cellular Ultrastructure Hertha Meyer, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Danielle M de Oliveira
- Natural Products Research Institute, IPPN, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - José A Ventura
- Capixaba Institute of Research, Technical Assistance and Rural Extension, Espirito Santo, Vitoria, Brazil
| | - Renata Campos Azevedo
- Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ricardo M Kuster
- Natural Products Research Institute, IPPN, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Chemistry Department, Federal University of Espírito Santo, Vitoria, Espirito Santo, Brazil
| | - Márcia Regina Soares
- Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Davis Fernandes Ferreira
- Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,National Institute of Science and Technology for Structural Biology and Bioimaging, INBEB, Rio de Janeiro, RJ, Brazil.,Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC, USA
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Effect of Ethanolic Caesalpinia sappan Fraction on In Vitro Antiviral Activity against Porcine Reproductive and Respiratory Syndrome Virus. Vet Sci 2021; 8:vetsci8060106. [PMID: 34207801 PMCID: PMC8229879 DOI: 10.3390/vetsci8060106] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 12/16/2022] Open
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) is a major epidemic in pig production, leading to economic losses in the pig industry worldwide. The use of medicinal plants with antiviral properties might be useful help to prevent and control PRRSV outbreaks. Caesalpinia sappan (CS) heartwood is an important herbal ingredient used in Thai folk medicine, possessing various biological activities, including antiviral activity. The present study focuses on the in vitro antiviral activity against PRRSV of a semi-purified fraction of ethanolic CS crude extract using preparative high-performance liquid chromatography. Qualification of the fractions illustrating positive antiviral activity was carried out with liquid chromatography–quadrupole time-of-flight mass spectrometry. The preparative chromatography separated the crude extract into six consecutive fractions, among which the first fraction showed potential antiviral activity by inhibiting PRRSV replication in a MARC-145 monolayer (virus titer 2.75 median tissue culture infective dose (TCID50)/mL (log10) vs. 9.50 median log10 TCID50/mL of the control) at 72 h post-infection, and this fraction included byakangelicin, brazilin, naringenin, and brazilein. These results provide useful information for further study to effectively develop the CS bioactive antiviral compounds against PRRSV as a feed additive or veterinary drug in the pig industry.
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Nhan NT, Nguyen PH, Tran MH, Nguyen PDN, Tran DT, To DC. Anti-inflammatory xanthone derivatives from Garcinia delpyana. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2021; 23:414-422. [PMID: 32432493 DOI: 10.1080/10286020.2020.1767079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 05/03/2020] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
Two new xanthones delpyxanthone A (1) and delpyxanthone B (3), together with four known ones, gerontoxanthone I (2), α-mangostin (4), cowanin (5) and cowanol (6) were isolated from the stem bark of Garcinia delpyana. The chemical structures of 1-6 were established mainly using nuclear magnetic resonance (NMR) and mass spectrometry (MS). The anti-inflammatory activity of the isolated compounds was evaluated against lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW264.7 cells in vitro. Compounds 1-4 showed significant inhibitory activity against the LPS-induced NO production in RAW264.7 cells with IC50 values ranging from 14.5 to 28.2 μM, but the others were inactive. The results suggested that G. delpyana and its constituents might be potential anti-inflammatory agents on RAW 264.7 cells.[Formula: see text].
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Affiliation(s)
- Ngu-Truong Nhan
- Faculty of Natural Science and Technology, Tay Nguyen University, 567 Le Duan, Ea Tam, Buon Ma Thuot City 630000, Vietnam
| | - Phi-Hung Nguyen
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay district, Hanoi 122100, Vietnam
| | - Manh-Hung Tran
- Biomedical Sciences Department, VNUK Institute for Research and Executive Education, The University of Danang, 158A Le Loi street, Hai Chau district, Da Nang 551000, Vietnam
| | - Phuong-Dai-Nguyen Nguyen
- Faculty of Natural Science and Technology, Tay Nguyen University, 567 Le Duan, Ea Tam, Buon Ma Thuot City 630000, Vietnam
| | - Dang-Thach Tran
- Industrial University of Vinh, 26 Nguyen Thai Hoc, Doi Cung, Vinh city, Nghe An, Vietnam
| | - Dao-Cuong To
- Faculty of Pharmacy, Phenikaa University, Yen Nghia, Ha Dong district, Hanoi 12116, Vietnam
- Phenikaa Research and Technology Institute (PRATI), A&A Green Phoenix Group JSC, 167 Hoang Ngan, Cau Giay district, Hanoi 11313, Vietnam
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REN CZ, HU WY, LI JC, XIE YH, JIA NN, SHI J, WEI YY, HU TJ. Ethyl acetate fraction of flavonoids from Polygonum hydropiper L. modulates pseudorabies virus-induced inflammation in RAW264.7 cells via the nuclear factor-kappa B and mitogen-activated protein kinase pathways. J Vet Med Sci 2020; 82:1781-1792. [PMID: 32999131 PMCID: PMC7804032 DOI: 10.1292/jvms.20-0263] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 08/21/2020] [Indexed: 01/05/2023] Open
Abstract
Pseudorabies virus (PRV) infection leads to severe inflammatory responses and tissue damage, and many natural herbs exhibit protective effects against viral infection by modulating the inflammatory response. An ethyl acetate fraction of flavonoids from Polygonum hydropiper L. (FEA) was prepared through ethanol extraction and ethyl acetate fractional extraction. An inflammatory model was established in RAW264.7 cells with PRV infection to evaluate the anti-inflammatory activity of FEA by measuring cell viability, nitric oxide (NO) production, reactive oxygen species (ROS) release, and mRNA expression of inflammatory factors, inducible nitric oxide synthase (iNOS), and cyclooxygenase-2 (COX-2). Its functional mechanism was investigated by analyzing the phosphorylation and nuclear translocation of key proteins in the nuclear factor-kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways. Our findings indicate that PRV induced inflammatory responses in RAW264.7 cells, and the responses were similar to that in lipopolysaccharide (LPS)-stimulated cells. FEA significantly suppressed NO synthesis and down-regulated both expression and secretion of COX-2, iNOS, and inflammatory cytokines (P<0.05 or P<0.01). FEA also reduced NF-κB p65 translocation into the nucleus and decreased MAPK phosphorylation, indicating that the NF-κB/MAPK signaling pathway may be closely related to the inflammatory response during viral infection. The findings suggested the potential pharmaceutical application of FEA as a natural product that can treat viral infections due to its ability to mitigate inflammatory responses.
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Affiliation(s)
- Chun-Zhi REN
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
- Guangxi Agricultural Vocational College, Nanning 530007, PR China
| | - Wen-Yue HU
- School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, 200030, PR China
| | - Jun-Cheng LI
- Guangxi Agricultural Vocational College, Nanning 530007, PR China
| | - Ying-Hong XIE
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Ni-Na JIA
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Jun SHI
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Ying-Yi WEI
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Ting-Jun HU
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
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Vitale GA, Coppola D, Palma Esposito F, Buonocore C, Ausuri J, Tortorella E, de Pascale D. Antioxidant Molecules from Marine Fungi: Methodologies and Perspectives. Antioxidants (Basel) 2020; 9:E1183. [PMID: 33256101 PMCID: PMC7760651 DOI: 10.3390/antiox9121183] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 12/31/2022] Open
Abstract
The marine environment represents a prosperous existing resource for bioprospecting, covering 70% of the planet earth, and hosting a huge biodiversity. Advances in the research are progressively uncovering the presence of unknown microorganisms, which have evolved unique metabolic and genetic pathways for the production of uncommon secondary metabolites. Fungi have a leading role in marine bioprospecting since they represent a prolific source of structurally diverse bioactive metabolites. Several bioactive compounds from marine fungi have already been characterized including antibiotics, anticancer, antioxidants and antivirals. Nowadays, the search for natural antioxidant molecules capable of replacing those synthetic currently used, is an aspect that is receiving significant attention. Antioxidants can inactivate reactive oxygen and nitrogen species, preventing the insurgence of several degenerative diseases including cancer, autoimmune disorders, cardiovascular and neurodegenerative diseases. Moreover, they also find applications in different fields, including food preservation, healthcare and cosmetics. This review focuses on the production of antioxidants from marine fungi. We begin by proposing a survey of the available tools suitable for the evaluation of antioxidants, followed by the description of various classes of marine fungi antioxidants together with their extraction strategies. In addition, a view of the future perspectives and trends of these natural products within the "blue economy" is also presented.
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Affiliation(s)
- Giovanni Andrea Vitale
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Daniela Coppola
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (F.P.E.)
- Institute of Biosciences and BioResources (IBBR), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Fortunato Palma Esposito
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (F.P.E.)
| | - Carmine Buonocore
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Janardhan Ausuri
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Emiliana Tortorella
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Donatella de Pascale
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (F.P.E.)
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Arjin C, Pringproa K, Hongsibsong S, Ruksiriwanich W, Seel-Audom M, Mekchay S, Sringarm K. In vitro screening antiviral activity of Thai medicinal plants against porcine reproductive and respiratory syndrome virus. BMC Vet Res 2020; 16:102. [PMID: 32228582 PMCID: PMC7106583 DOI: 10.1186/s12917-020-02320-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 03/17/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Porcine reproductive and respiratory syndrome (PRRS) caused by PRRS virus (PRRSV) results in economic losses in the swine industry globally. Several studies have investigated the use of plant extracts in the prevention and control of PRRS outbreaks. Thai medicinal plants may be useful for treating PRRSV infection in pigs. Therefore, we investigated the in vitro anti-PRRSV and antioxidant properties of seven Thai medicinal plants: Caesalpinia sappan Linn., Garcinia mangostana Linn., Houttuynia cordata, Perilla frutescens, Clinacanthus nutans, Phyllanthus emblica, and Tiliacora triandra. RESULTS Using antiviral screening, we observed that T. triandra extract strongly inhibited PRRSV infectivity in MARC-145 cells [virus titer 3.5 median tissue culture infective dose (TCID50)/ml (log10)] at 24 h post-infection, whereas C. sappan extract strongly inhibited PRRSV replication [virus titer 2.5 TCID50/ml (log10)] at 72 h post-infection. C. sappan extract had the highest total phenolic content [220.52 mM gallic acid equivalent/g] and lowest half-maximal inhibitory concentration [1.17 mg/ml in 2,2-diphenyl-1-picrylhydrazyl and 2.58 mg/ml in 2,2-azino-bis (3-ethylbenzothiazo-line-6-sulfonic acid) diammonium salt]. CONCLUSION T. triandra extract could inhibit PRRSV infectivity, whereas C. sappan extract was the most effective in inhibiting PRRSV replication in MARC-145 cells. This study elucidates the antiviral activities of Thai medicinal plant extracts in vivo. The results promise that Thai medicinal plant extracts, particularly T. triandra and C. sappan extracts, can be developed into pharmaceutical drugs for the prevention of PRRS in pigs.
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Affiliation(s)
- Chaiwat Arjin
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 239, Huaykaew Road, Suthep, Muang, Chiang Mai, 50200, Thailand
| | - Kidsadagon Pringproa
- Department of Veterinary Bioscience and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand.,Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Surat Hongsibsong
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai, 50200, Thailand.,Environment and Health Research Unit, Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Warintorn Ruksiriwanich
- Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai, 50200, Thailand.,Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Mintra Seel-Audom
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 239, Huaykaew Road, Suthep, Muang, Chiang Mai, 50200, Thailand
| | - Supamit Mekchay
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 239, Huaykaew Road, Suthep, Muang, Chiang Mai, 50200, Thailand.,Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Korawan Sringarm
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 239, Huaykaew Road, Suthep, Muang, Chiang Mai, 50200, Thailand. .,Cluster of Research and Development of Pharmaceutical and Natural Products Innovation for Human or Animal, Chiang Mai University, Chiang Mai, 50200, Thailand.
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