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Magtoto PD, Arruda BL, Magtoto RL, Mora-Díaz JC, Opulencia RB, Baum DH, Zimmerman JJ, Giménez-Lirola LG. Differential antigenicity of individual Mycoplasma hyorhinis variable lipoproteins. Vet Immunol Immunopathol 2024; 272:110768. [PMID: 38703559 DOI: 10.1016/j.vetimm.2024.110768] [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: 03/12/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/06/2024]
Abstract
The Mycoplasma hyorhinis (Mhr) variable lipoprotein (Vlp) family, comprising Vlps A, B, C, D, E, F, and G, are highly variable in expression, size, and cytoadhesion capabilities across Mhr strains. The 'Vlp system' plays a crucial role in cytoadhesion, immune evasion, and in eliciting a host immunologic response. This pilot study described the development of Vlp peptide-based ELISAs to evaluate the antigenic reactivity of individual Vlps against Mhr antisera collected throughout a longitudinal study focused on Mhr strain 38983, reproducing Mhr-associated disease under experimental conditions. Specifically, serum samples were collected at day post-inoculation 0, 7, 10, 14, 17, 21, 24, 28, 35, 42, 49, and 56 from Mhr- and mock (Friis medium)-inoculated cesarean-derived, colostrum-deprived pigs. Significant Mhr-specific IgG responses were detected at specific time points throughout the infection, with some variations for each Vlp. Overall, individual Vlp ELISAs showed consistently high accuracy rates, except for VlpD, which would likely be associated with its expression levels or the anti-Vlp humoral immune response specific to the Mhr strain used in this study. This study provides the basis and tools for a more refined understanding of these Vlp- and Mhr strain-specific variations, which is foundational in understanding the host immune response to Mhr.
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Affiliation(s)
- Precy D Magtoto
- College of Veterinary Medicine, Pampanga State Agricultural University, Pampanga, the Philippines; College of Arts and Sciences, University of the Philippines Los Baños, Laguna, the Philippines
| | - Bailey L Arruda
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA; Virus and Prion Research Unit, National Animal Disease Center, USDA, Agricultural Research Service, Ames, IA, USA
| | - Ronaldo L Magtoto
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Juan Carlos Mora-Díaz
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Rina B Opulencia
- College of Arts and Sciences, University of the Philippines Los Baños, Laguna, the Philippines
| | - David H Baum
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Jeff J Zimmerman
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Luis G Giménez-Lirola
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA.
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2
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Magtoto PD, Arruda BL, Magtoto RL, Mora-Díaz JC, Opulencia RB, Baum DH, Zimmerman JJ, Giménez-Lirola LG. Dynamics of antibody response and bacterial shedding of Mycoplasma hyorhinis and M. hyosynoviae in oral fluids from experimentally inoculated pigs. Vet Microbiol 2024; 290:109999. [PMID: 38280306 DOI: 10.1016/j.vetmic.2024.109999] [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: 08/25/2023] [Revised: 01/11/2024] [Accepted: 01/13/2024] [Indexed: 01/29/2024]
Abstract
Mycoplasma hyorhinis (Mhr) and M. hyosynoviae (Mhs) are commensal organisms of the upper respiratory tract and tonsils but may also cause arthritis in pigs. In this study, 8-week-old cesarean-derived colostrum-deprived (CDCD) pigs (n = 30; 3 groups, 10 pigs per group, 2 pigs per pen) were inoculated with Mhr, Mhs, or mock-inoculated with culture medium and then pen-based oral fluids were collected at different time points over the 56 days of the experimental study. Oral fluids tested by Mhr and Mhs quantitative real-time PCRs revealed Mhr DNA between day post inoculation (DPI) 5-52 and Mhs DNA between DPI 5-15. Oral fluids were likewise tested for antibody using isotype-specific (IgG, IgA, IgM) indirect ELISAs based on a recombinant chimeric polypeptide of variable lipoproteins (A-G) for Mhr and Tween 20-extracted surface proteins for Mhs. Mhr IgA was detected at DPI 7 and, relative to the control group, significant (p < 0.05) antibody responses were detected in the Mhr group between DPI 12-15 for IgM and DPI 36-56 for both IgA and IgG. In the Mhs group, IgM was detected at DPI 10 and significant (p < 0.05) IgG and IgA responses were detected at DPI 32-56 and DPI 44-56, respectively. This study demonstrated that oral fluid could serve as an effective and convenient antemortem sample for monitoring Mhr and Mhs in swine populations.
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Affiliation(s)
- Precy D Magtoto
- College of Veterinary Medicine, Pampanga State Agricultural University, Pampanga, the Philippines; College of Arts and Sciences, University of the Philippines Los Baños, Laguna, the Philippines
| | - Bailey L Arruda
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA; Virus and Prion Research Unit, National Animal Disease Center, USDA, Agricultural Research Service, Ames, IA, USA
| | - Ronaldo L Magtoto
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Juan Carlos Mora-Díaz
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Rina B Opulencia
- College of Arts and Sciences, University of the Philippines Los Baños, Laguna, the Philippines
| | - David H Baum
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Jeff J Zimmerman
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Luis G Giménez-Lirola
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA.
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3
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Buckley AC, Mora-Díaz JC, Magtoto RL, Hulzen AV, Ferreyra FM, Falkenberg SM, Giménez-Lirola LG, Arruda BL. Dynamics of Infection of Atypical Porcine Pestivirus in Commercial Pigs from Birth to Market: A Longitudinal Study. Viruses 2023; 15:1767. [PMID: 37632109 PMCID: PMC10458225 DOI: 10.3390/v15081767] [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: 07/26/2023] [Revised: 08/11/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Atypical porcine pestivirus (APPV) was found to be associated with pigs demonstrating congenital tremors (CT), and clinical signs in pigs have been reproduced after experimental challenge. Subsequently, APPV has been identified in both symptomatic and asymptomatic swine of all ages globally. The objective of this research was to perform a longitudinal study following two cohorts of pigs, those born in litters with pigs exhibiting CT and those born in litters without CT, to analyze the virus and antibody dynamics of APPV infection in serum from birth to market. There was a wide range in the percentage of affected pigs (8-75%) within CT-positive litters. After co-mingling with CT-positive litters at weaning, pigs from CT-negative litters developed viremia that was cleared after approximately 2 months, with the majority seroconverting by the end of the study. In contrast, a greater percentage of pigs exhibiting CT remained PCR positive throughout the growing phase, with less than one-third of these animals seroconverting. APPV RNA was present in multiple tissues from pigs in both groups at the time of marketing. This study improved our understanding of the infection dynamics of APPV in swine and the impact that the immune status and timing of infection have on the persistence of APPV in serum and tissues.
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Affiliation(s)
- Alexandra C. Buckley
- Virus and Prion Research Unit, National Animal Disease Center, Agricultural Research Service, U.S. Department of Agriculture, Ames, IA 50010, USA
| | - Juan-Carlos Mora-Díaz
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA 50011, USA; (J.-C.M.-D.); (R.L.M.); (A.V.H.); (F.M.F.); (L.G.G.-L.)
| | - Ronaldo L. Magtoto
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA 50011, USA; (J.-C.M.-D.); (R.L.M.); (A.V.H.); (F.M.F.); (L.G.G.-L.)
| | - Amberly Van Hulzen
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA 50011, USA; (J.-C.M.-D.); (R.L.M.); (A.V.H.); (F.M.F.); (L.G.G.-L.)
| | - Franco Matias Ferreyra
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA 50011, USA; (J.-C.M.-D.); (R.L.M.); (A.V.H.); (F.M.F.); (L.G.G.-L.)
- Kansas State Veterinary Diagnostic Laboratory, Kansas State University, Manhattan, KS 66506, USA
| | - Shollie M. Falkenberg
- Ruminant Disease and Immunology Research Unit, National Animal Disease Center, U.S. Department of Agriculture, Agricultural Research Service, Ames, IA 50010, USA;
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA
| | - Luis G. Giménez-Lirola
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA 50011, USA; (J.-C.M.-D.); (R.L.M.); (A.V.H.); (F.M.F.); (L.G.G.-L.)
| | - Bailey L. Arruda
- Virus and Prion Research Unit, National Animal Disease Center, Agricultural Research Service, U.S. Department of Agriculture, Ames, IA 50010, USA
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4
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Poeta Silva APS, Magtoto RL, Souza Almeida HM, McDaniel A, Magtoto PD, Derscheid RJ, Merodio MM, Matias Ferreyra FS, Gatto IRH, Baum DH, Clavijo MJ, Arruda BL, Zimmerman JJ, Giménez-Lirola LG. Performance of Commercial Mycoplasma hyopneumoniae Serum Enzyme-Linked Immunosorbent Assays under Experimental and Field Conditions. J Clin Microbiol 2020; 58:e00485-20. [PMID: 32967897 PMCID: PMC7685885 DOI: 10.1128/jcm.00485-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 09/15/2020] [Indexed: 01/11/2023] Open
Abstract
Mycoplasma hyopneumoniae is an economically significant pathogen of swine. M. hyopneumoniae serum antibody detection via commercial enzyme-linked immunosorbent assays (ELISAs) is widely used for routine surveillance in commercial swine production systems. Samples from two studies were used to evaluate assay performance. In study 1, 6 commercial M. hyopneumoniae ELISAs were compared using serum samples from 8-week-old cesarean-derived, colostrum-deprived (CDCD) pigs allocated to the following 5 inoculation groups of 10 pigs each: (i) negative control, (ii) Mycoplasma flocculare (strain 27399), (iii) Mycoplasma hyorhinis (strain 38983), (iv) Mycoplasma hyosynoviae (strain 34428), and (v) M. hyopneumoniae (strain 232). Weekly serum and daily oral fluid samples were collected through 56 days postinoculation (dpi). The true status of pigs was established by PCR testing on oral fluids samples over the course of the observation period. Analysis of ELISA performance at various cutoffs found that the manufacturers' recommended cutoffs were diagnostically specific, i.e., produced no false positives, with the exceptions of 2 ELISAs. An analysis based on overall misclassification error rates found that 4 ELISAs performed similarly, although one assay produced more false positives. In study 2, the 3 best-performing ELISAs from study 1 were compared using serum samples generated under field conditions. Ten 8-week-old pigs were intratracheally inoculated with M. hyopneumoniae Matched serum and tracheal samples (to establish the true pig M. hyopneumoniae status) were collected at 7- to 14-day intervals through 98 dpi. Analyses of sensitivity and specificity showed similar performance among these 3 ELISAs. Overall, this study provides an assessment of the performance of current M. hyopneumoniae ELISAs and an understanding of their use in surveillance.
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Affiliation(s)
- Ana Paula S Poeta Silva
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
| | - Ronaldo L Magtoto
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
| | | | - Aric McDaniel
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
| | - Precy D Magtoto
- Pampanga State Agricultural University, Pampanga, Philippines
| | - Rachel J Derscheid
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
| | - Maria M Merodio
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
| | - Franco S Matias Ferreyra
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
| | - Igor R H Gatto
- Universidade Estadual de São Paulo, Jaboticabal, São Paulo, Brazil
| | - David H Baum
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
| | - Maria J Clavijo
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
- PIC North America, Hendersonville, Tennessee, USA
| | - Bailey L Arruda
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
| | - Jeffrey J Zimmerman
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
| | - Luis G Giménez-Lirola
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, USA
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5
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Giménez-Lirola LG, Meiroz-De-Souza-Almeida H, Magtoto RL, McDaniel AJ, Merodio MM, Matias Ferreyra FS, Poonsuk K, Gatto IRH, Baum DH, Ross RF, Arruda PHE, Schwartz KJ, Zimmerman JJ, Derscheid RJ, Arruda BL. Early detection and differential serodiagnosis of Mycoplasma hyorhinis and Mycoplasma hyosynoviae infections under experimental conditions. PLoS One 2019; 14:e0223459. [PMID: 31589633 PMCID: PMC6779295 DOI: 10.1371/journal.pone.0223459] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 09/20/2019] [Indexed: 01/31/2023] Open
Abstract
Mycoplasma hyorhinis (MHR) and Mycoplasma hyosynoviae (MHS) are common opportunistic pathogens in the upper respiratory tract and tonsils of swine. The identification of the specific species involved in clinical cases using conventional diagnostic methods is challenging. Therefore, a recombinant chimeric polypeptide based on the seven known variable lipoproteins (A-G) specific of MHR and a cocktail of surface proteins detergent-extracted from MHS cultures were generated and their suitability as antemortem biomarkers for serodiagnosis of MHR- and MHS-infection were evaluated by ELISA. M. hyorhinis and MHS ELISA performance, evaluated using serum samples collected over a 56-day observation period from pigs inoculated with MHR, MHS, M. hyopneumoniae, M. flocculare, or Friis medium, varied by assay, targeted antibody isotype, and cutoffs. The progressions of MHR and MHS clinical diseases were evaluated in relation to the kinetics of the isotype-specific antibody response in serum and bacterial shedding in oral fluids during the observation period. In pigs inoculated with MHR, bacterial DNA was detected in one or more of the 5 pens at all sampling points throughout the study, IgA was first detected at DPI 7, one week before the first clinical signs, with both IgA and IgG detected in all samples collected after DPI 14. The peak of MHS shedding (DPI 8) coincided with the onset of the clinical signs, with both IgA and IgG detected in all serum samples collected ≥ DPI 14. This study demonstrated, under experimental conditions, that both ELISAs were suitable for early detection of specific antibodies against MHR or MHS. The diagnostic performance of the MHR and MHS ELISAs varied depending on the selected cutoff and the antibody isotype evaluated. The high diagnostic and analytical specificity of the ELISAs was particularly remarkable. This study also provides insights into the infection dynamics of MHR-associated disease and MHS-associated arthritis not previously described.
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Affiliation(s)
- Luis G. Giménez-Lirola
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
- * E-mail:
| | | | - Ronaldo L. Magtoto
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | - Aric J. McDaniel
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | - Maria M. Merodio
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | | | - Korakrit Poonsuk
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | - Igor R. H. Gatto
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, SP, Brazil
| | - David H. Baum
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | - Richard F. Ross
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | - Paulo H. E. Arruda
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | - Kent J. Schwartz
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | - Jeffrey J. Zimmerman
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | - Rachel J. Derscheid
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
| | - Bailey L. Arruda
- College of Veterinary Medicine, Iowa State University, Ames, IA, United States of America
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6
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Poonsuk K, Giménez-Lirola LG, Magtoto RL, Ji J, Baum DH, Rademacher CJ, Brown JT, Zhang J, Wang C, Main RG, Zimmerman JJ. The effect of chemical clarification of oral fluids on porcine epidemic diarrhea virus antibody responses. J Vet Diagn Invest 2018; 30:937-941. [PMID: 30204059 DOI: 10.1177/1040638718798672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 11/16/2022] Open
Abstract
Routine testing of breeding herd oral fluid (OF) samples for porcine epidemic diarrhea virus (PEDV) IgG and/or IgA is used to track levels of PEDV immunity over time. However, OFs contain particles of feed, feces, and inorganic material that detract from the quality of the sample. We clarified swine OF samples using lyophilized chitosan-based formulas (A-C) tested by PEDV IgG and IgA ELISAs. To evaluate both the immediate and residual effects of treatment on antibody detection, samples were tested immediately post-treatment, then stored at 4°C and retested at 2, 4, and 6 days post-treatment (DPT). Formulations were shown to effectively clarify samples. Statistical analysis comparing treated to untreated OF samples at 0 DPT found that neither chitosan nor Tween 20 affected the OF ELISA IgA and IgG sample-to-positive (S/P) ratio results ( p > 0.05). Furthermore, pairwise comparisons of 0 DPT to 2, 4, and 6 DPT results detected no significant differences ( p > 0.05) in IgA and IgG S/P ratios (i.e., treated OF samples were stable over time). Therefore, chitosan efficiently clarified OF specimens without affecting the results of the PEDV IgG and IgA antibody ELISAs.
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Affiliation(s)
- Korakrit Poonsuk
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - Luis G Giménez-Lirola
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - Ronaldo L Magtoto
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - Ju Ji
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - David H Baum
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - Christopher J Rademacher
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - Justin T Brown
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - Jianqiang Zhang
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - Chong Wang
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - Rodger G Main
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
| | - Jeffrey J Zimmerman
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine (Poonsuk, Giménez-Lirola, Magtoto, Baum, Rademacher, Brown, Zhang, Main, Zimmerman), Iowa State University, Ames, IA.,Department of Statistics, College of Liberal Arts and Sciences (Ji, Wang), Iowa State University, Ames, IA
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7
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Magtoto RL, Vegi A, Wang C, Johnson JK, Ramamoorthy S. Evaluation and use of a serological assay for the detection of antibodies to Lawsonia intracellularisin swine. Int J Vet Sci Med 2014. [DOI: 10.1016/j.ijvsm.2014.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Ronaldo L. Magtoto
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Anuradha Vegi
- Department of Veterinary and Microbiological Sciences, N. Dakota State University, Fargo, ND, United States
| | - Chong Wang
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
- Department of Statistics College of Liberal Arts and Sciences, Iowa State University, Ames, IA, United States
| | - John K. Johnson
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Sheela Ramamoorthy
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
- Department of Statistics College of Liberal Arts and Sciences, Iowa State University, Ames, IA, United States
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8
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Reyes BAS, Bautista ND, Tanquilut NC, Anunciado RV, Leung AB, Sanchez GC, Magtoto RL, Castronuevo P, Tsukamura H, Maeda KI. Anti-diabetic potentials of Momordica charantia and Andrographis paniculata and their effects on estrous cyclicity of alloxan-induced diabetic rats. J Ethnopharmacol 2006; 105:196-200. [PMID: 16298503 DOI: 10.1016/j.jep.2005.10.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2005] [Revised: 10/14/2005] [Accepted: 10/18/2005] [Indexed: 05/05/2023]
Abstract
Momordica charantia and Andrographis paniculata are the commonly used herbs by the diabetic patients in Pampanga, Philippines. While the anti-diabetic potential of Momordica charantia is well established in streptozocin- or alloxan-induced diabetic animals, the anti-diabetic potential of Andrographis paniculata in alloxan-induced diabetic rat is not known. Neither the effects of these herbs on estrous cyclicity of alloxan-induced diabetic rats are elucidated. Thus, in these experiments, Momordica charantia fruit juice or Andrographis paniculata decoction was orally administered to alloxan-induced diabetic rats. Rats that were treated with Momordica charantia and Andrographis paniculata had higher body weight (BW) compared with diabetic positive control (P < 0.01) from day 22 to day 27 (D27) but exhibited lower BW than the non-diabetic control (P < 0.05). These rats had lower feed (P < 0.05) and liquid intakes (P < 0.01) compared with diabetic positive control from day 17 to D27, but similar with the non-diabetic control. The blood glucose levels in these groups were significantly reduced from day 12 to D27 compared with diabetic positive control (P < 0.01), however, comparable with non-diabetic control. The diabetic positive control had extended mean estrous cycles (8 days) compared to Momordica charantia and Andrographis paniculata-treated diabetic rats (5 days; P < 0.05). Our results suggest that the anti-diabetic potentials of Momordica charantia and Andrographis paniculata could restore impaired estrous cycle in alloxan-induced diabetic rats.
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Affiliation(s)
- B A S Reyes
- Thomas Jefferson University, Department of Neurosurgery, Farber Institute for Neurosciences, Philadelphia, Pennsylvania 19107, USA.
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