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Hsueh FC, Kuo KL, Hsu FY, Wang SY, Chiu HJ, Wu MT, Lin CF, Huang YH, Chiou MT, Lin CN. Molecular Characteristics and Pathogenicity of Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) 1 in Taiwan during 2019-2020. Life (Basel) 2023; 13:life13030843. [PMID: 36983998 PMCID: PMC10056585 DOI: 10.3390/life13030843] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 02/23/2023] [Revised: 03/16/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023] Open
Abstract
Two variants of porcine reproductive and respiratory syndrome virus (PRRSV), PRRSV 1 and PRRSV 2, have caused abortion in pregnant sows and respiratory distress in nursery pigs worldwide. PRRSV 2 has been thoroughly researched in Taiwan since 1993; however, the first case of PRRSV 1 was not reported until late 2018. To decipher the genetic characteristics of PRRSV 1 in Taiwan, open reading frame 5 (ORF5) genes of PRRSV 1 strains collected from 11 individual pig farms in 2019-2020 were successfully sequenced. All Taiwanese ORF5 sequences were closely related to Spanish-like PRRSV strains, which are considered to share a common evolutionary origin with the strain used for the PRRSV 1 vaccine. Analyses of amino acid (aa) and non-synonymous substitutions showed that genetic variations resulted in numerously specific codon mutations scattered across the neutralizing epitopes within the ORF5 gene. The PRRSV 1 challenge experiment disclosed the pathogenetic capability of the NPUST2789 isolate in nursery pigs. These findings provide comprehensive knowledge of the molecular diversity of the PRRSV 1 variant in local Taiwanese fields and facilitate the development of suitable immunization programs against this disease.
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Affiliation(s)
- Fu-Chun Hsueh
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Kun-Lin Kuo
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Feng-Yang Hsu
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Sheng-Yuan Wang
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Hsien-Jen Chiu
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Meng-Tien Wu
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Chuen-Fu Lin
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Yu-Han Huang
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Ming-Tang Chiou
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Chao-Nan Lin
- Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
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Affiliation(s)
- Kun-Lin Kuo
- Institute of Statistics, National University of Kaohsiung, Kaohsiung, Taiwan
| | - Thomas J. Jiang
- Department of Mathematical Sciences, National Chengchi University, Taipei, Taiwan
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Rochau U, Kluibenschaedl M, Stenehjem D, Kuo KL, Oderda G, Brixner D, Siebert U. Decision Analysis on the Cost-Effectiveness of Sequential Treatment Strategies for Patients with Chronic Myeloid Leukemia in the United States. Value Health 2014; 17:A639. [PMID: 27202283 DOI: 10.1016/j.jval.2014.08.2302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- U Rochau
- UMIT - University for Health Sciences, Medical Informatics and Technology/ ONCOTYROL - Center for Personalized Cancer Medicine, Hall in Tyrol/ Innsbruck, Austria
| | - M Kluibenschaedl
- UMIT - University for Health Sciences, Medical Informatics and Technology/ ONCOTYROL - Center for Personalized Cancer Medicine, Hall in Tyrol/ Innsbruck, Austria
| | | | - K L Kuo
- University of Utah, Salt Lake City, UT, USA
| | - G Oderda
- University of Utah, Salt Lake City, UT, USA
| | - D Brixner
- UMIT - University for Health Sciences, Medical Informatics and Technology/ ONCOTYROL - Center for Personalized Cancer Medicine/ University of Utah, Hall in Tyrol/ Salt Lake City, UT, Austria
| | - U Siebert
- Medical Informatics and Technology, and Director of the Division for Health Technology Assessment and Bioinformatics, ONCOTYROL, Hall i. T, Austria
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Dickey JM, Jiang TJ, Kuo KL. Distribution of functionals of a Ferguson–Dirichlet process over an n-dimensional ball. J MULTIVARIATE ANAL 2013. [DOI: 10.1016/j.jmva.2013.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
Renal anemia is mainly caused by inadequate synthesis of erythropoietin from diseased kidneys. At the present time, recombinant human erythropoietin (rHuEPO) is used to correct anemia successfully in most patients with end-stage renal diseases. Nevertheless, poor response to rHuEPO still exists in some hemodialysis patients and its mechanism in some cases remains obscure. Herein, we describe a rare case of rHuEPO hyporesponsiveness due to mechanical hemolysis induced by a traumatic carotid-jugular arteriovenous fistula (AVF) in the presence of subclinical aluminum intoxication. Following surgical resection of the traumatic AVF and 8 months of desferrioxamine treatment, the responsiveness to rHuEPO was restored and the rHuEPO dose requirements reduced.
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Affiliation(s)
- K L Kuo
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, and Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
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Abstract
This study presents a high-performance capillary electrophoresis (CE) method to analyze five constituents of Puerariae radix, an important crude herb used in Chinese medicine. Puerarin, daidzin, daidzein, genistein and biochanin A are the bioactive constituents of Puerariae radix. Herein, those analytes were successfully separated within 6 min using a pH 10.1 borax-NaOH buffer. The effects of pH value and concentration of the running buffer on the separation of the five analytes were also examined. The relative standard deviations of the analytes' migration times were less than 0.38% under the optimized separation conditions. Notably, the correlation coefficients of the analytes' linear calibration graphs exceeded 0.998. Moreover, the amounts of the five constituents in three different Puerariae radix samples were determined by the CE method with a relatively simple extraction procedure.
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Affiliation(s)
- C Y Wang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan, R.O.C
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Abstract
This paper presents a rapid and reliable micellar electrokinetic capillary chromatography (MEKC) method to separate major prostaglandins and thromboxane B2. The running buffer was modified with sodium dodecyl sulfate (SDS). The effects of the SDS concentration on the migration behavior of analytes was also examined. Moreover, the influences of electrolyte concentration and capillary temperature on the separation were investigated. In optimum conditions, seven major prostaglandins and thromboxane B2 could be separated within 8 min. The relative standard deviations of the migration times (reproducibility) of the analytes were less than 0.82%.
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Affiliation(s)
- Y Z Hsieh
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
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