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Rodríguez-Domínguez MC, Montes-de-Oca-Jiménez R, Vázquez-Chagoyán JC, Rivadeneira-Barreiro PE, Zambrano-Rodríguez PC, Ruiz-Riva-Palacio ME, Gutiérrez-Castillo ADC, de-Castro-Soares S, Vieyra-Reyes P, Arteaga-Troncoso G. Bioinformatic Approach of B and T Cell Epitopes of PLD and CP40 Proteins of Corynebacterium pseudotuberculosis ovis Mexican Isolate 2J-L towards a Peptide-Based Vaccine. Int J Mol Sci 2023; 25:270. [PMID: 38203441 PMCID: PMC10778833 DOI: 10.3390/ijms25010270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/08/2023] [Accepted: 12/10/2023] [Indexed: 01/12/2024] Open
Abstract
Mapping B and T cell epitopes constitutes an important action for peptide vaccine design. PLD and CP40 virulence factors of Corynebacterium pseudotuberculosis biovar ovis, a causal agent of Caseous Lymphadenitis, have been evaluated in a murine model as good candidates for vaccine development. Therefore, the goal of this work was to in silico analyze B and T cell epitopes of the PLD and CP40 proteins of a Mexican isolate of Corynebacterium pseudotuberculosis ovis. The Immune Epitope Data Base and Resource website was employed to predict the linear and conformational B-cell, T CD4+, and T CD8+ epitopes of PLD and CP40 proteins of Corynebacterium pseudotuberculosis ovis Mexican strain 2J-L. Fifty B cell epitopes for PLD 2J-L and forty-seven for CP40 2J-L were estimated. In addition, T CD4+ and CD8+ cell epitopes were predicted for PLD 2J-L (MHC I:16 epitopes, MHC II:10 epitopes) and CP40 2J-L (MHC I: 15 epitopes, MHC II: 13 epitopes). This study provides epitopes, paying particular attention to sequences selected by different predictor programs and overlap sequences as B and T cell epitopes. PLD 2J-L and CP40 2J-L protein epitopes may aid in the design of a promising peptide-based vaccine against Caseous Lymphadenitis in Mexico.
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Affiliation(s)
- Maria Carla Rodríguez-Domínguez
- Research and Advanced Studies in Animal Health Center, Faculty of Veterinary Medicine and Zootechnics, Autonomy University of the State of Mexico, Km 15.5 Toluca Pan-American Highway Atlacomulco, Toluca C.P. 50200, State of Mexico, Mexico; (M.C.R.-D.); (J.C.V.-C.); (A.d.C.G.-C.); (P.V.-R.)
| | - Roberto Montes-de-Oca-Jiménez
- Research and Advanced Studies in Animal Health Center, Faculty of Veterinary Medicine and Zootechnics, Autonomy University of the State of Mexico, Km 15.5 Toluca Pan-American Highway Atlacomulco, Toluca C.P. 50200, State of Mexico, Mexico; (M.C.R.-D.); (J.C.V.-C.); (A.d.C.G.-C.); (P.V.-R.)
- Sor Juana Inés de la Cruz School, Autonomy University of the State of Mexico- AMECAMECA, Amecameca de Juarez C.P. 56900, State of Mexico, Mexico;
| | - Juan Carlos Vázquez-Chagoyán
- Research and Advanced Studies in Animal Health Center, Faculty of Veterinary Medicine and Zootechnics, Autonomy University of the State of Mexico, Km 15.5 Toluca Pan-American Highway Atlacomulco, Toluca C.P. 50200, State of Mexico, Mexico; (M.C.R.-D.); (J.C.V.-C.); (A.d.C.G.-C.); (P.V.-R.)
| | - Pilar Eliana Rivadeneira-Barreiro
- Department of Veterinary Medicine, Faculty of Veterinary Sciences, Technical University of Manabí, Urbina Avenue, Portoviejo C.P. 130105, Portoviejo, Ecuador; (P.E.R.-B.); (P.C.Z.-R.)
| | - Pablo Cleomenes Zambrano-Rodríguez
- Department of Veterinary Medicine, Faculty of Veterinary Sciences, Technical University of Manabí, Urbina Avenue, Portoviejo C.P. 130105, Portoviejo, Ecuador; (P.E.R.-B.); (P.C.Z.-R.)
| | - Martha Elba Ruiz-Riva-Palacio
- Sor Juana Inés de la Cruz School, Autonomy University of the State of Mexico- AMECAMECA, Amecameca de Juarez C.P. 56900, State of Mexico, Mexico;
| | - Adriana del Carmen Gutiérrez-Castillo
- Research and Advanced Studies in Animal Health Center, Faculty of Veterinary Medicine and Zootechnics, Autonomy University of the State of Mexico, Km 15.5 Toluca Pan-American Highway Atlacomulco, Toluca C.P. 50200, State of Mexico, Mexico; (M.C.R.-D.); (J.C.V.-C.); (A.d.C.G.-C.); (P.V.-R.)
| | - Siomar de-Castro-Soares
- Department of Microbiology, Immunology and Parasitology, Federal University of Triângulo Mineiro, Av. Frei Paulino, 30-Nossa Sra. da Abadia, Uberaba C.P. 38025-180, Minas Gerais, Brazil;
| | - Patricia Vieyra-Reyes
- Research and Advanced Studies in Animal Health Center, Faculty of Veterinary Medicine and Zootechnics, Autonomy University of the State of Mexico, Km 15.5 Toluca Pan-American Highway Atlacomulco, Toluca C.P. 50200, State of Mexico, Mexico; (M.C.R.-D.); (J.C.V.-C.); (A.d.C.G.-C.); (P.V.-R.)
| | - Gabriel Arteaga-Troncoso
- Department of Cellular Biology and Development, National Institute of Perinatology, Lomas de Chapultepec IV Secc, Miguel Hidalgo, Mexico City C.P. 11000, Mexico;
- Military School of Health Officers, University of the Mexican Army and Air Force, SEDENA, Mexico City C.P. 11650, Mexico
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El Damaty HM, El-Demerdash AS, Abd El-Aziz NK, Yousef SG, Hefny AA, Abo Remela EM, Shaker A, Elsohaby I. Molecular Characterization and Antimicrobial Susceptibilities of Corynebacterium pseudotuberculosis Isolated from Caseous Lymphadenitis of Smallholder Sheep and Goats. Animals (Basel) 2023; 13:2337. [PMID: 37508114 PMCID: PMC10376069 DOI: 10.3390/ani13142337] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/04/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Caseous lymphadenitis (CLA) is a bacterial infection caused by Corynebacterium pseudotuberculosis (C. pseudotuberculosis) that affects sheep and goats, leading to abscess formation in their lymph nodes. The present study aimed to isolate and identify C. pseudotuberculosis from CLA in smallholder sheep and goats, and determine the resistance patterns, virulence, and resistance genes of the isolates. Additionally, genotypic and phylogenetic analysis of the isolates was conducted using ERIC-PCR and DNA sequencing techniques. A cross-sectional study examined 220 animals (130 sheep and 90 goats) from 39 smallholder flocks for clinical signs of CLA. Fifty-four (24.54%) animals showed CLA-compatible lesions, confirmed by C. pseudotuberculosis isolation and PCR identification. Sheep had a lower infection rate of CLA (18.46%) compared with goats (33.3%). Antimicrobial susceptibility testing of 54 C. pseudotuberculosis isolates to 24 antimicrobial drugs revealed that they were 100% resistant to bacitracin and florfenicol, while none of the isolates were resistant to norfloxacin. A high resistance rate was observed for penicillin and erythromycin (92.6% each). Interestingly, 16.7% of C. pseudotuberculosis isolates recovered from sheep showed vancomycin resistance. Molecular characterization of C. pseudotuberculosis isolates revealed that PLD, PIP, and FagA virulence genes were present in all examined isolates. However, the FagB, FagC, and FagD genes were detected in 24 (100%), 20 (83%), and 18 (75%) of the sheep isolates, and 26 (87%), 26 (87%), and 18 (60%) of the goat isolates, respectively. The β-lactam resistance gene was present in all isolates. Furthermore, 83% of the sheep isolates carried the aminoglycoside (aph(3″)-lb), chloramphenicol (cat1), and bacitracin (bcrA) resistance genes. Among the isolates recovered from goats, 73% were found to contain macrolides (ermX), sulfonamide (sul1), and bacitracin (bcrA) resistance genes. It is worrisome that the glycopeptide (vanA) resistance gene was detected in 8% of the sheep isolates as a first report. ERIC-PCR genotyping of 10 multi-drug-resistant C. pseudotuberculosis isolates showed a high similarity index of 83.6% between isolates from sheep and goats. Nucleotide sequence analysis of partial 16S rRNA sequences of C. pseudotuberculosis revealed 98.83% similarity with biovar Ovis of globally available reference sequences on the Genbank database. Overall, our findings might indicate that C. pseudotuberculosis infection in smallholders in Egypt might be underestimated despite the significant financial impact on animal husbandry and potential health hazards it poses. Moreover, this study highlights the importance of implementing a sustainable control strategy and increasing knowledge and awareness among smallholder breeders to mitigate the economic impact of CLA.
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Affiliation(s)
- Hend M El Damaty
- Department of Animal Medicine, Infectious Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Azza S El-Demerdash
- Agriculture Research Center (ARC), Animal Health Research Institute (AHRI), Zagazig 44516, Egypt
| | - Norhan K Abd El-Aziz
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Sarah G Yousef
- Department of Animal Medicine, Infectious Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Ahmed A Hefny
- Veterinary Hospital, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Etab M Abo Remela
- Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
- Department of Biology, College of Science, Taibah University, Medina 42353, Saudi Arabia
| | - Asmaa Shaker
- Department of Microbiology, Veterinary Hospital, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 32897, Egypt
| | - Ibrahim Elsohaby
- Department of Animal Medicine, Infectious Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
- Department of Infectious Diseases and Public Health, Jockey Club of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR 999077, China
- Centre for Applied One Health Research and Policy Advice (OHRP), City University of Hong Kong, Hong Kong SAR 999077, China
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Pathirana HNKS, Cho HS, Cho YI, Kim CL, Wimalasena SHMP, Rajapaksha LGTG, Gunasekara ACWR, Kim CH, Seo BJ, Moon SH, Park JH, Shin GW. Molecular characterization and antimicrobial susceptibility of Corynebacterium pseudotuberculosis isolated from skin abscesses of native Korean goats (Capra hircus coreanae). J Appl Microbiol 2022; 133:2074-2082. [PMID: 35737750 DOI: 10.1111/jam.15683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 06/08/2022] [Accepted: 06/15/2022] [Indexed: 11/28/2022]
Abstract
AIMS This study aimed to investigate the molecular characterization and antimicrobial susceptibility of C. pseudotuberculosis from skin abscesses of Korean native black goats (KNBG, Capra hircus coreanae) in South Korea. METHODS AND RESULTS A total of 83 isolates were recovered from skin abscesses of KNBG. Of these isolates, 74 isolates were identified as C. pseudotuberculosis by phospholipase D (PLD) gene-based PCR assay. Each of the isolates possessed all 18 virulence genes (FagA, FagB, FagC, FagD, SigE, SpaC, SodC, PknG, NanH, OppA, OppB, OppC, OppD, OppF, CopC, NrdH and CpaE). The genetic diversity of C. pseudotuberculosis isolates was assessed by the phylogenetic analysis using the concatenated sequences (3,073 bp) of five housekeeping genes (fusA, dnaK, infB, groeL1, and leuA) for investigating their genetic diversity. In the results, the isolates belonged to three groups: group 1 (67 isolates), group 2 (one isolate), and group 3 (six isolates) within biovar ovis. However, the groups exhibited low genetic diversity (0.20~0.41%). In the antimicrobial susceptibility test, most isolates were susceptible to tetracycline, vancomycin, chloramphenicol, ciprofloxacin, erythromycin, enrofloxacin, cefoxitin, ampicillin, gentamycin, cephalothin, and doxycycline, whereas they were not susceptible to cefotaxime, trimethoprim, and streptomycin. CONCLUSION This results suggest the involvement of relatively few clones of C. pseudotuberculosis in Korea. Further, present isolates can threaten public health due to potentially virulent strains with all 18 virulence genes and non-susceptible strains to clinically important antibiotics (CIA) and highly important antibiotics (HIA). SIGNIFICANCE AND IMPACT OF THE STUDY This study is the first to investigate the genetic diversity and potential pathogenicity of C. pseudotuberculosis biovar ovis isolates from skin abscesses of KBNG in South Korea, and could provide useful information in controlling its infections.
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Affiliation(s)
- H N K S Pathirana
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Ho-Seong Cho
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Yong-Il Cho
- Department of Animal Science and Technology, Sunchon National University, Jeonnam, Republic of Korea
| | - Chan-Lan Kim
- Animal Genetic Resources Research Center, National Institute of Animal Science, RDA, Namwon, Republic of Korea
| | - S H M P Wimalasena
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - L G T G Rajapaksha
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - A C W R Gunasekara
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Chong-Han Kim
- Vaccine team, Woogene B&G Co., LTD., Seoul, Republic of Korea
| | - Byoung-Joo Seo
- Vaccine team, Woogene B&G Co., LTD., Seoul, Republic of Korea
| | - Sung-Hyun Moon
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Jin-Ho Park
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
| | - Gee-Wook Shin
- Bio-Safety Research Institute, College of Veterinary Medicine, Jeonbuk National University, Iksan, Republic of Korea
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Terab AMA, Abdel Wahab GED, Ishag HZA, Khalil NAH, El Tigani-Asil ETA, Hashem FM, Khalafalla AI, Shah AAM, Al Muhairi SSM. Pathology, bacteriology and molecular studies on caseous lymphadenitis in Camelus dromedarius in the Emirate of Abu Dhabi, UAE, 2015-2020. PLoS One 2021; 16:e0252893. [PMID: 34101753 PMCID: PMC8186769 DOI: 10.1371/journal.pone.0252893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 05/25/2021] [Indexed: 02/05/2023] Open
Abstract
Caseous lymphadenitis (CLA) or pseudotuberculosis is a chronic zoonotic bacterial disease caused by Corynebacterium pseudotuberculosis, which affects livestock and humans. This study aimed to describe the pathology, bacteriology and confirm the identity of the pathogen by 16S rRNA gene sequencing in Camelus dromedarius. A total of 12 camels with suspected CLA in three regions of Abu Dhabi Emirate (Abu Dhabi, Al Ain and Al Dhafra), United Arab Emirate (UAE) were subjected to clinical and postmortem examinations from January 2015 to December 2020. Clinically, camels were emaciated and showed the presence of external caseous abscesses suggestive of CLA. Postmortem examination showed multiple abscesses of variable sizes with caseous material encapsulated by fibrous tissue in the liver, lungs, muscle, and lymph nodes. Following clinical and postmortem examination, blood, pus and different tissue samples were collected for subsequent analysis. Histopathological examination of all organs stained with Hematoxylin and Eosin (H&E) indicated a central caseo-necrotic core that was admixed with bacterial colonies and infiltration of chronic inflammatory cells, surrounded by a pyogenic membrane, and an outer fibrous connective tissue capsule. Bacterial culture identified the isolates of Corynebacterium pseudotuberculosis biotype ovis strain, and these isolates were shown to be sensitive to all antibiotics tested (penicillin, ampicillin, Co-trimoxazole, enrofloxacin and tetracycline). Moreover, the identity of the isolates was confirmed by partial sequencing of the 16S rRNA gene which showed a 100% identity to Corynebacterium pseudotuberculosis. Phylogenetic analysis based on 16S rRNA gene sequence clearly differentiates Corynebacterium pseudotuberculosis from other species of Corynebacterium. Briefly, this study provided the basic information for infection of Corynebacterium pseudotuberculosis in Camels and will help in controlling of this pathogen in the region.
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Affiliation(s)
- Abdelnasir Mohammed Adam Terab
- Veterinary Laboratories, Animal Wealth Sector, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates (UAE)
| | - Ghada El Derdiri Abdel Wahab
- Veterinary Laboratories, Animal Wealth Sector, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates (UAE)
| | - Hassan Zackaria Ali Ishag
- Veterinary Laboratories, Animal Wealth Sector, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates (UAE)
- * E-mail: (HZAI); (SSMA)
| | - Nasereldien Altaib Hussein Khalil
- Veterinary Laboratories, Animal Wealth Sector, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates (UAE)
| | - El Tigani Ahmed El Tigani-Asil
- Veterinary Laboratories, Animal Wealth Sector, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates (UAE)
| | - Farouk Mohamed Hashem
- Veterinary Laboratories, Animal Wealth Sector, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates (UAE)
| | - Abdelmalik Ibrahim Khalafalla
- Veterinary Laboratories, Animal Wealth Sector, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates (UAE)
| | - Asma Abdi Mohamed Shah
- Veterinary Laboratories, Animal Wealth Sector, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates (UAE)
| | - Salama Suhail Mohammed Al Muhairi
- Veterinary Laboratories, Animal Wealth Sector, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates (UAE)
- * E-mail: (HZAI); (SSMA)
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de Oliveira Zamprogna T, Ribeiro D, Azevedo VAC, Lara GHB, Motta RG, da Silva RC, Siqueira AK, de Nardi Júnior G, Listoni FJP, de Souza Araújo Martins L, da Silva AV, Portilho FVR, da Rocha Mota A, Rodrigues CA, de Almeida BO, Ribeiro MG. Bacteriological, cytological, and molecular investigation of Corynebacterium pseudotuberculosis, mycobacteria, and other bacteria in caseous lymphadenitis and healthy lymph nodes of slaughtered sheep. Braz J Microbiol 2020; 52:431-438. [PMID: 33185852 DOI: 10.1007/s42770-020-00403-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 11/04/2020] [Indexed: 11/27/2022] Open
Abstract
Caseous lymphadenitis (CL) in sheep is a chronic contagious disease caused by Corynebacterium pseudotuberculosis, commonly characterized by abscess formation in peripheral lymph nodes and disseminated infections. Nonetheless, other microorganisms, including with zoonotic relevance, can be isolated from CL-resembling lymph nodes. Currently, mycobacteria have been reported in visceral granulomatous lesions in small ruminants, a fact that poses a public health issue, particularly in slaughtered sheep intended for human consumption. Cytology using fine needle aspiration and microbiological culturing are suitable tests for routine diagnostic, whereas present drawbacks and molecular methods have been confirmatory. Data about the occurrence of mycobacteria in both lymph nodes with aspect of CL and apparently healthy visceral nodes of sheep slaughtered for human consumption are scarce. In this study, 197 visceral lymph nodes of sheep showed lymphadenitis and 202 healthy visceral lymph nodes of slaughtered sheep intended for human consumption were submitted to conventional bacteriological diagnosis, mycobacteria culturing, and cytological evaluation. Compatible Corynebacterium isolates were subjected to multiplex PCR targeting 16S rRNA, rpoB, and pld genes to detect C. pseudotuberculosis. Based on microbiological identification, C. pseudotuberculosis (86/197; 43.7%), streptococci γ-hemolytic (17/197; 8.6%), and Trueperella pyogenes (12/197; 6.1%) were prevalent in lymph nodes with abscesses, as opposed to staphylococci (53/202; 26.2%) in apparently healthy lymph nodes. No mycobacteria were isolated. Cytology identified 49.2% (97/197) Gram-positive pleomorphic organisms (coryneform aspect). Multiplex PCR confirmed genetic material of C. pseudotuberculosis in 74.4% (64/86) of the samples with C. pseudotuberculosis isolation and 66% (64/97) samples with cytological coryneform aspect (κ = 86.78%; 95% CI = 79.87-93.68%). These findings emphasize the prevalence of C. pseudotuberculosis in abscess formation among peripheral lymph nodes of sheep. Other bacteria were also identified in lymph nodes sampled that resembling C. pseudotuberculosis-induced infections that may difficult the diagnosis. Multiplex PCR revealed a valuable assay to detect C. pseudotuberculosis, in addition to routine methods applied to CL-diagnosis. No mycobacteria were identified in lymph nodes sampled, with and without apparent lesions. Nonetheless, due to public health impacts, this pathogen should be considered as a differential diagnosis of C. pseudotuberculosis-induced infections during inspection procedures of slaughtered sheep intended for human consumption.
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Affiliation(s)
- Thiago de Oliveira Zamprogna
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Dayana Ribeiro
- Laboratory of Cellular and Molecular Genetics, Institute of Biologic Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Vasco A C Azevedo
- Laboratory of Cellular and Molecular Genetics, Institute of Biologic Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Gustavo Henrique Batista Lara
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Rodrigo Garcia Motta
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Rodrigo Costa da Silva
- School of Agrarian Sciences, University of Western São Paulo (UNOESTE), Presidente Prudente, SP, Brazil
| | - Amanda Keller Siqueira
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | - Fernando José Paganini Listoni
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Lorrayne de Souza Araújo Martins
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Aristeu Vieira da Silva
- Zoonosis and Public Health Research Group, Department of Biologial Sciences, Feira de Santana State University (UEFS), Feira de Santana, BA, Brazil
| | - Fábio Vinícius Ramos Portilho
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - André da Rocha Mota
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Carolina Aparecida Rodrigues
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Beatriz Oliveira de Almeida
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Márcio Garcia Ribeiro
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil.
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Didkowska A, Żmuda P, Kwiecień E, Rzewuska M, Klich D, Krajewska-Wędzina M, Witkowski L, Żychska M, Kaczmarkowska A, Orłowska B, Anusz K. Microbiological assessment of sheep lymph nodes with lymphadenitis found during post-mortem examination of slaughtered sheep: implications for veterinary-sanitary meat control. Acta Vet Scand 2020; 62:48. [PMID: 32887621 PMCID: PMC7472580 DOI: 10.1186/s13028-020-00547-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 08/29/2020] [Indexed: 11/12/2022] Open
Abstract
Background Microbiological examination of lesions found in slaughtered animals during meat inspection is an important part of public health protection as such lesions may be due to zoonotic agents that can be transmitted by meat. Examination of inflamed lymph nodes also plays a particular important role, as lymphadenitis may reflect a more widespread infection. Such lesions in sheep are mainly caused by pyogenic bacteria but also mycobacteria are occasionally found. Meat inspection data from 2017 to 2018 from southern Poland, especially from the Małopolska region, indicate that purulent or caseous lymphadenitis involving the mediastinal and tracheobronchial lymph nodes (MTLNs) is a common finding. The primary aim of the current study was to determine the aetiology of these lesions. Furthermore, it was investigated how presence of lesions was correlated with age and grazing strategy of affected sheep. Results Post-mortem examination revealed purulent or caseous lymphadenitis in the MTLNs of 49 out of 284 animals (17.3%). Subsequent microbiological examination revealed the presence of Corynebacterium pseudotuberculosis (34.7%), Streptococcus dysgalactiae subsp. equisimilis (34.7%), Staphylococcus aureus (8.2%), Enterococcus spp. (2.0%), Trueperella pyogenes (2.0%), and β-haemolytic strains of Escherichia coli (2.0%). Mycobacterium spp. and Rhodococcus equi were not detected. In older sheep, the probability of the presence of purulent or caseous lymphadenitis was higher than in younger, and the risk was increasing by 1.5% with each month of life. Sheep grazing locally had 4.5-times greater risk of having purulent or caseous lymphadenitis than individuals summer grazing in the mountains. Conclusion The most common aetiological agents of purulent or caseous lymphadenitis in the MTLNs of sheep in the Małopolska region were C. pseudotuberculosis and S. dysgalactiae subsp. equisimilis. Particular attention during post-mortem examination should be paid to the carcasses of older sheep and sheep grazing on permanent pastures, as they seem more prone to develop purulent or caseous lymphadenitis.
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Li H, Yang H, Zhou Z, Li X, Yi W, Xu Y, Wang Z, Hu S. Isolation, antibiotic resistance, virulence traits and phylogenetic analysis of Corynebacterium pseudotuberculosis from goats in southwestern China. Small Rumin Res 2018. [DOI: 10.1016/j.smallrumres.2018.09.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Long M, Yang S, Li P, Song X, Pan J, He J, Zhang Y, Wu R. Combined Use of C. butyricum Sx-01 and L. salivarius C-1-3 Improves Intestinal Health and Reduces the Amount of Lipids in Serum via Modulation of Gut Microbiota in Mice. Nutrients 2018; 10:nu10070810. [PMID: 29937527 PMCID: PMC6073611 DOI: 10.3390/nu10070810] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 06/17/2018] [Accepted: 06/22/2018] [Indexed: 01/09/2023] Open
Abstract
The study was conducted to investigate whether combined use of C. butyricum Sx-01 and L. salivarius C-1-3 could improve the intestinal health and reduce the lipid levels in sera of mice and whether these benefits were related to regulating the intestinal microflora. Eighty Kunming male mice were divided into four groups with five replicates per group and four mice per replicate. Mice in the control group were administrated with 0.2 mL normal saline; mice in three experimental groups were daily orally administrated with 4 × 108 cfu of L. salivarius, 4 × 108 cfu of C. butyricum, and a combination thereof (2 × 108 cfu of L. salivarius, and 2 × 108 cfu of C. butyricum), respectively. The experiment lasted for 14 days. The results showed that the average daily feed intake (ADFI) and feed/gain (F/G) ratio of growing mice underwent no significant changes (p > 0.05); however, the average daily gain (ADG) tended to increase over short periods of time. The activities of SOD and GSH-Px in serum in the combination group were significantly increased (p < 0.05); The triglyceride, and total cholesterol, contents in serum in the combined treatment group were significantly decreased (p < 0.05); The total volatile fatty acids and butyric acid in faecal matter of mice in the experimental groups were all significantly increased at 14 days (p < 0.05); The length of villi, and the mucosal thickness of colon and caecum (p < 0.05) were significantly improved; The relative abundance of some bacteria with antioxidant capacity or decomposing cholesterol capacity or butyrate producing capacity was increased, while the relative abundance of some pathogenic bacteria was decreased in the colon. Furthermore, our results showed that the beneficial effects of the combined use of the two strains was higher than that of single use. Overall, the results demonstrated that the combined use of C. butyricum Sx-01 and L. salivarius C-1-3 can significantly improve intestinal health and reduce the amount of lipids in sera of mice. The reason for these effects might be that besides their own probiotic effects, combined use of the two strains could regulate the intestinal microflora.
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Affiliation(s)
- Miao Long
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Shuhua Yang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Peng Li
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xin Song
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jiawen Pan
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jianbin He
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Yi Zhang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Rina Wu
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
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