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Byrne A, Ollier S, Tahlan K, Biet F, Bissonnette N. Genomic epidemiology of Mycobacterium avium subsp. paratuberculosis isolates from Canadian dairy herds provides evidence for multiple infection events. Front Genet 2023; 14:1043598. [PMID: 36816022 PMCID: PMC9934062 DOI: 10.3389/fgene.2023.1043598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 01/18/2023] [Indexed: 02/05/2023] Open
Abstract
Mycobacterium avium subsp. paratuberculosis (MAP) is the pathogen responsible for paratuberculosis or Johne's Disease (JD) in ruminants, which is responsible for substantial economic losses worldwide. MAP transmission primarily occurs through the fecal-oral route, and the introduction of an MAP infected animal into a herd is an important transmission route. In the current study, we characterized MAP isolates from 67 cows identified in 20 herds from the provinces of Quebec and Ontario, Canada. Whole genome sequencing (WGS) was performed and an average genome coverage (relative to K-10) of ∼14.9 fold was achieved. The total number of SNPs present in each isolate varied from 51 to 132 and differed significantly between herds. Isolates with the highest genetic variability were generally present in herds from Quebec. The isolates were broadly separated into two main clades and this distinction was not influenced by the province from which they originated. Analysis of 8 MIRU-VNTR loci and 11 SSR loci was performed on the 67 isolates from the 20 dairy herds and publicly available references, notably major genetic lineages and six isolates from the province of Newfoundland and Labrador. All 67 field isolates were phylogenetically classified as Type II (C-type) and according to MIRU-VNTR, the predominant type was INMV 2 (76.1%) among four distinct patterns. Multilocus SSR typing identified 49 distinct INMV SSR patterns. The discriminatory index of the multilocus SSR typing was 0.9846, which was much higher than MIRU-VNTR typing (0.3740). Although multilocus SSR analysis provides good discriminatory power, the resolution was not informative enough to determine inter-herd transmission. In select cases, SNP-based analysis was the only approach able to document disease transmission between herds, further validated by animal movement data. The presence of SNPs in several virulence genes, notably for PE, PPE, mce and mmpL, is expected to explain differential antigenic or pathogenetic host responses. SNP-based studies will provide insight into how MAP genetic variation may impact host-pathogen interactions. Our study highlights the informative power of WGS which is now recommended for epidemiological studies and to document mixed genotypes infections.
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Affiliation(s)
- Alexander Byrne
- Department of Biology, Memorial University of Newfoundland, St. John’s, NL, Canada
| | - Séverine Ollier
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada
| | - Kapil Tahlan
- Department of Biology, Memorial University of Newfoundland, St. John’s, NL, Canada
| | - Franck Biet
- INRAE, ISP, Université de Tours, Nouzilly, France
| | - Nathalie Bissonnette
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada,*Correspondence: Nathalie Bissonnette,
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Paratuberculosis: The Hidden Killer of Small Ruminants. Animals (Basel) 2021; 12:ani12010012. [PMID: 35011118 PMCID: PMC8749836 DOI: 10.3390/ani12010012] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/02/2021] [Accepted: 12/15/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Paratuberculosis is a chronic disease of ruminants and many non-ruminant animals caused by the bacterium Mycobacterium avium subsp. paratuberculosis. Affected animals show diarrhoea, loss of weight, and decreased production performance with consequent economic losses. This bacterium has been detected in some humans suffering from a chronic intestinal disease known as Crohn’s disease (CD) and, therefore, some scientists believe that CD is the human form of paratuberculosis. The disease in small ruminants has been reported in all continents, with goats being more susceptible than sheep. The clinical signs of the disease in goats are not so obvious as often do not show signs of diarrhoea, and the animal may die before being finally diagnosed. In Africa and many developing countries, paratuberculosis is described as a “neglected disease” particularly in small ruminants, which play a vital role in the livelihood of poor communities. This overview attempts to highlight the current research and gaps on this disease in small ruminants to draw more attention for further studies on diagnosis, prevention and control. Abstract Paratuberculosis (PTB) is a contagious and chronic enteric disease of ruminants and many non-ruminants caused by Mycobacterium avium subsp. paratuberculosis (MAP), and is characterised by diarrhoea and progressive emaciation with consequent serious economic losses due to death, early culling, and reduced productivity. In addition, indirect economic losses may arise from trade restrictions. Besides being a production limiting disease, PTB is a potential zoonosis; MAP has been isolated from Crohn’s disease patients and was associated with other human diseases, such as rheumatoid arthritis, Hashimoto’s thyroiditis, Type 1 diabetes, and multiple sclerosis. Paratuberculosis in sheep and goats may be globally distributed though information on the prevalence and economic impact in many developing countries seem to be scanty. Goats are more susceptible to infection than sheep and both species are likely to develop the clinical disease. Ingestion of feed and water contaminated with faeces of MAP-positive animals is the common route of infection, which then spreads horizontally and vertically. In African countries, PTB has been described as a “neglected disease”, and in small ruminants, which support the livelihood of people in rural areas and poor communities, the disease was rarely reported. Prevention and control of small ruminants’ PTB is difficult because diagnostic assays demonstrate poor sensitivity early in the disease process, in addition to the difficulties in identifying subclinically infected animals. Further studies are needed to provide more insight on molecular epidemiology, transmission, and impact on other animals or humans, socio-economic aspects, prevention and control of small ruminant PTB.
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Ariel O, Brouard JS, Marete A, Miglior F, Ibeagha-Awemu E, Bissonnette N. Genome-wide association analysis identified both RNA-seq and DNA variants associated to paratuberculosis in Canadian Holstein cattle 'in vitro' experimentally infected macrophages. BMC Genomics 2021; 22:162. [PMID: 33678157 PMCID: PMC7938594 DOI: 10.1186/s12864-021-07487-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 02/26/2021] [Indexed: 12/22/2022] Open
Abstract
Background Mycobacterium avium ssp. paratuberculosis (MAP) is the causative agent of paratuberculosis, or Johne’s disease (JD), an incurable bovine disease. The evidence for susceptibility to MAP disease points to multiple interacting factors, including the genetic predisposition to a dysregulation of the immune system. The endemic situation in cattle populations can be in part explained by a genetic susceptibility to MAP infection. In order to identify the best genetic improvement strategy that will lead to a significant reduction of JD in the population, we need to understand the link between genetic variability and the biological systems that MAP targets in its assault to dominate macrophages. MAP survives in macrophages where it disseminates. We used next-generation RNA (RNA-Seq) sequencing to study of the transcriptome in response to MAP infection of the macrophages from cows that have been naturally infected and identified as positive for JD (JD (+); n = 22) or negative for JD (healthy/resistant, JD (−); n = 28). In addition to identifying genetic variants from RNA-seq data, SNP variants were also identified using the Bovine SNP50 DNA chip. Results The complementary strategy allowed the identification of 1,356,248 genetic variants, including 814,168 RNA-seq and 591,220 DNA chip variants. Annotation using SnpEff predicted that the 2435 RNA-seq genetic variants would produce high functional effect on known genes in comparison to the 33 DNA chip variants. Significant variants from JD(+/−) macrophages were identified by genome-wide association study and revealed two quantitative traits loci: BTA4 and 11 at (P < 5 × 10− 7). Using BovineMine, gene expression levels together with significant genomic variants revealed pathways that potentially influence JD susceptibility, notably the energy-dependent regulation of mTOR by LKB1-AMPK and the metabolism of lipids. Conclusion In the present study, we succeeded in identifying genetic variants in regulatory pathways of the macrophages that may affect the susceptibility of cows that are healthy/resistant to MAP infection. RNA-seq provides an unprecedented opportunity to investigate gene expression and to link the genetic variations to biological pathways that MAP normally manipulate during the process of killing macrophages. A strategy incorporating functional markers into genetic selection may have a considerable impact in improving resistance to an incurable disease. Integrating the findings of this research into the conventional genetic selection program may allow faster and more lasting improvement in resistance to bovine paratuberculosis in dairy cattle. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-07487-4.
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Affiliation(s)
- Olivier Ariel
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, J1M 0C8, Canada
| | - Jean-Simon Brouard
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, J1M 0C8, Canada
| | - Andrew Marete
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, J1M 0C8, Canada
| | - Filippo Miglior
- Center of Genetic Improvement of Livestock, University of Guelph, Guelph, ON, N1G 2W1, Canada.,Canadian Dairy Network, Guelph, ON, N1K 1E5, Canada
| | - Eveline Ibeagha-Awemu
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, J1M 0C8, Canada
| | - Nathalie Bissonnette
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, J1M 0C8, Canada.
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de Lacerda Roberto JP, Limeira CH, da Costa Barnabé NN, Soares RR, Silva MLCR, de Barros Gomes AA, Dos Santos Higino SS, de Azevedo SS, Alves CJ. Antibody detection and molecular analysis for Mycobacterium avium subspecies paratuberculosis (MAP) in goat milk: Systematic review and meta-analysis. Res Vet Sci 2021; 135:72-77. [PMID: 33450499 DOI: 10.1016/j.rvsc.2021.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 12/30/2020] [Accepted: 01/03/2021] [Indexed: 01/25/2023]
Abstract
Paratuberculosis is an incurable infectious disease that affects several species, including goat (Capra hircus). The etiologic agent is Mycobacterium avium subspecies paratuberculosis (MAP) that has tropism for the intestine, causing anorexia, progressive weight loss and death. In goats, the main transmission route is the ingestion of water and food contaminated by infected feces. Affected animals also eliminate the agent through milk, with a potential biological risk to public health. Thus, the aim of this study was to conduct a research of the literature available in electronic media for a systematic review, followed by a meta-analysis of the results found on prevalence and diagnostic tests adopted in the detection of MAP antibodies and DNA in goat milk. The following search parameters were used: "Mycobacterium avium subsp. paratuberculosis" AND (goat OR small ruminant) AND (milk OR pasteurized milk). Strictly obeying pre-established criteria, 437 articles were selected from the respective electronic databases of scientific content: ScienceDirect (285), PubMed (68), Web of Science (60) and Scopus (24), of which nine papers were elected to the construction of the systematic review and meta-analysis. The prevalence of MAP antibodies in milk detected by milk-ELISA ranged from 1.1 to 67.7% and the prevalence of MAP DNA in goat milk detected by MAP-specific polymerase chain reaction (PCR) ranged from 1.94 to 37.74%. A meta-analysis indicated a combined MAP infection prevalence of 8.24%, but with high heterogeneity among study findings (I2 = 98.7%). The identification of the MAP in goat milk implies the need for surveillance of the agent in order to prevent economic losses and impact on public health.
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Affiliation(s)
| | - Clécio Henrique Limeira
- Federal University of Campina Grande, Post-Graduate Program in Animal Science and Health, Patos, PB, Brazil
| | | | - Rafael Rodrigues Soares
- Federal University of Campina Grande, Post-Graduate Program in Animal Science and Health, Patos, PB, Brazil
| | | | | | | | - Sérgio Santos de Azevedo
- Federal University of Campina Grande, Post-Graduate Program in Animal Science and Health, Patos, PB, Brazil
| | - Clebert José Alves
- Federal University of Campina Grande, Post-Graduate Program in Animal Science and Health, Patos, PB, Brazil.
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Agrawal A, Varshney R, Gattani A, Kirthika P, Khan MH, Singh R, Kodape S, Patel SK, Singh P. Gold nanoparticle based immunochromatographic biosensor for rapid diagnosis of Mycobacterium avium subspecies paratuberculosis infection using recombinant protein. J Microbiol Methods 2020; 177:106024. [PMID: 32795639 DOI: 10.1016/j.mimet.2020.106024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/28/2020] [Accepted: 08/03/2020] [Indexed: 01/08/2023]
Abstract
Highly infectious and obvious withstand ability of Mycobacterium avium subspecies paratuberculosis (MAP) to environment as well as lack of on-site field diagnostic methods notably hampers the paratuberculosis (PTB) control. The existing intricacy, time-consuming and complicated diagnostic methods of PTB accentuate the development of novel and easy-to-perform on-site test. A gold nanoparticle (GNP) based lateral-flow assay (LFA) using MAP recombinant protein (44 kDa) has been developed for sensitive and specific detection of PTB in field conditions. The diagnostic sensitivity and specificity of the LFA for MAP specific antibodies was found approximately 84.2% and 83.3% in comparison to indirect enzyme-linked immunosorbent assay. Consequently, the newly developed GNP based LFA offers on-site and cost-effective method for the prompt diagnosis of PTB and precludes the time-consuming laboratory screening.
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Affiliation(s)
- Aditya Agrawal
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | - Rajat Varshney
- Division of Bacteriology and Mycology, IVRI, Izatnagar, Bareilly, U.P. 243122, India; Department of Veterinary Microbiology, FVAS, IAS, RGSC, BHU, Barkachha, Mirzapur UP-231001, India.
| | - Anil Gattani
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India; Department of Veterinary biochemistry, Bihar veterinary college, Patna 800014, India.
| | - P Kirthika
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | - Mahvash Hira Khan
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | - Rahul Singh
- Division of Pathology, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | - Shantanu Kodape
- Division of Veterinary Biotechnology, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
| | | | - Praveen Singh
- Division of Animal Biochemistry, IVRI, Izatnagar, Bareilly, U.P. 243122, India.
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Shabana II, Aljohani AA. Sero-surveillance of Mycobacterium avium subspecies paratuberculosis infection in ruminants in Medina. J Adv Vet Anim Res 2019; 7:69-76. [PMID: 32219112 PMCID: PMC7096108 DOI: 10.5455/javar.2020.g395] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 11/08/2019] [Accepted: 11/20/2019] [Indexed: 01/03/2023] Open
Abstract
Objective: The present study aimed to assess for the first time, in Medina, the prevalence of Mycobacterium avium subsp. paratuberculosis in ruminants due to its potential zoonotic importance. Materials and methods: A total of 823 sera samples and 364 milk samples were used to determine the incidence of Mycobacterium avium subsp. Paratuberculosis (MAP) using the indirect Enzyme-Linked Immunosorbent Assay. Results: The seroprevalence of MAP was 11.1% in sheep and 13.8% in goats, while no infection was recorded among camels. MAP infection was not influenced by the animal’s gender, but it was influenced by its locality since the infection rate in local animals was higher than that in imported ones with a significant correlation (p < 0.05). MAP infection had a significant correlation (p < 0.05) with 2 years aged animals. On the other hand, the detection of MAP in milk revealed that 17 (13.8%) goats and 12 (4.9%) sheep were infected. The prevalence of MAP in milk samples was not influenced by either the animal’s age or locality. Conclusion: Sheep and goats may act as a reservoir for MAP to the Medina community. Since Medina is an active area of mass gatherings as a destination for pilgrims throughout the year, therefore, necessary control measures should be implemented to lower the economic losses, zoonotic infections, and the possibility of a global epidemic.
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Affiliation(s)
- Iman Ibrahim Shabana
- Faculty of Veterinary Medicine, Department of Bacteriology, Immunology and Mycology, Suez Canal University, Ismailia, Egypt
| | - Aisha A Aljohani
- Biology Department, Faculty of Science, Taibah University, Al Madinah Al Munawarah, Medina, Saudi Arabia
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Gavin WG, Porter CA, Hawkins N, Schofield MJ, Pollock JM. Johne's disease: a successful eradication programme in a dairy goat herd. Vet Rec 2018; 182:483. [DOI: 10.1136/vr.104507] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 10/18/2017] [Accepted: 01/12/2018] [Indexed: 11/04/2022]
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Chaubey KK, Singh SV, Gupta S, Singh M, Sohal JS, Kumar N, Singh MK, Bhatia AK, Dhama K. Mycobacterium avium subspecies paratuberculosis - an important food borne pathogen of high public health significance with special reference to India: an update. Vet Q 2018; 37:282-299. [PMID: 29090657 DOI: 10.1080/01652176.2017.1397301] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
This review underlines the public health significance of 'Indian Bison Type' of Mycobacterium avium subspecies paratuberculosis (MAP) and also its potential as 'zoonotic infection'. In the absence of control programs, bio-load of MAP is increasing and if we take total population of animals (500 million plus) and human beings (1.23 billion plus) into account, the number of infected animals and human beings will run into millions in India. Our research on screening of over 26,000 domestic livestock for MAP infection using 4 different diagnostic tests (microscopy, culture, ELISA and PCR), during last 31 years has shown that the average bio-load of MAP in the livestock population of India is very high (cattle 43%, buffaloes 36%, goats 23% and sheep 41%). 'Mass screening' of 28,291 human samples between 2008-2016 revealed also high bio-load of MAP. It has been proved that MAP is not in-activated during pasteurization and therefore live bacilli are continuously reaching human population by consumption of even pasteurized milk and other milk products. Live bacilli have also been recovered from meat products and the environment thus illustrating the potential of MAP as pathogen of public health concern. However, at present, there is inadequate scientific evidence to confirm a conclusive link between MAP infection and Johne's disease in ruminants and some cases of Crohn's disease in human beings.
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Affiliation(s)
- Kundan Kumar Chaubey
- a Animal Health Division, Central Institute for Research on Goats (CIRG) , Mathura , UP , India.,b Department of Microbiology and Immunology , GLA University , Mathura , UP , India
| | - Shoor Vir Singh
- a Animal Health Division, Central Institute for Research on Goats (CIRG) , Mathura , UP , India
| | - Saurabh Gupta
- a Animal Health Division, Central Institute for Research on Goats (CIRG) , Mathura , UP , India.,b Department of Microbiology and Immunology , GLA University , Mathura , UP , India
| | - Manju Singh
- a Animal Health Division, Central Institute for Research on Goats (CIRG) , Mathura , UP , India
| | - Jagdip Singh Sohal
- c Amity Institutes of Microbial Technology, Amity University , Jaipur , India
| | - Naveen Kumar
- d Veterinary Type Culture Collection, NRC On Equines , Indian Council of Agricultural Research , Hisar , India
| | - Manoj Kumar Singh
- a Animal Health Division, Central Institute for Research on Goats (CIRG) , Mathura , UP , India
| | - Ashok Kumar Bhatia
- b Department of Microbiology and Immunology , GLA University , Mathura , UP , India
| | - Kuldeep Dhama
- e Pathology Division , Indian Veterinary Research Institute (IVRI) , Bareilly , UP , India
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Espeschit IF, Schwarz DGG, Faria ACS, Souza MCC, Paolicchi FA, Juste RA, Carvalho IA, Moreira MAS. Paratuberculosis in Latin America: a systematic review. Trop Anim Health Prod 2017; 49:1557-1576. [PMID: 28884331 DOI: 10.1007/s11250-017-1385-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 08/17/2017] [Indexed: 11/30/2022]
Abstract
Latin America is the definition of the American group, where languages of Latin origin are spoken, including countries in South, Central, and North America. Paratuberculosis is a gastrointestinal contagious chronic disease that affects ruminants, whose etiological agent is the bacilli Mycobacterium avium subsp. paratuberculosis (MAP). Paratuberculosis is characterized by intermittent diarrhea, decreased milk production, dehydration, and progressive weight loss and is possibly involved in Crohn's disease, a human intestinal disease. MAP is resistant to environmental factors, pasteurization, and water disinfection, which coupled with the subclinical-clinical nature of the disease, and makes paratuberculosis a relevant socioeconomic and public health issue, justifying the descriptive review of research on the disease carried out in Latin American countries. A survey of articles, published until September 2016, on the Scopus database, PubMed, Agris, and Science Direct, about detection of the agent and the disease in Latin America, without restrictions to the date of the research was performed. The keywords were as follows: "paratuberculosis," "Mycobacterium avium subsp. paratuberculosis," "cattle," "milk," "wildlife," "goat," "ovine," "dairy," and the name of each country in English. Studies found from nine of the 20 Latin America countries, 31 related to Brazil, 17 to Argentina, 14 to Chile, eight to Colombia, six to Mexico, two to Peru, two to Venezuela, and one to Panama and to Bolivia, each. The agent was detected in cattle, goats, sheep, domesticated water buffalo, and wild animals. Microbiological culture, PCR, and ELISA were the frequent techniques. The small number of studies may result in overestimation or underestimation of the real scenario.
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Affiliation(s)
- I F Espeschit
- Laboratory of Bacterial Diseases; Sector of Preventive Veterinary Medicine and Public Health, Universidade Federal de Viçosa, PH Rolfs Avenue, University campus, Viçosa, MG, 36570-900, Brazil
| | - D G G Schwarz
- Laboratory of Bacterial Diseases; Sector of Preventive Veterinary Medicine and Public Health, Universidade Federal de Viçosa, PH Rolfs Avenue, University campus, Viçosa, MG, 36570-900, Brazil
| | - A C S Faria
- Laboratory of Bacterial Diseases; Sector of Preventive Veterinary Medicine and Public Health, Universidade Federal de Viçosa, PH Rolfs Avenue, University campus, Viçosa, MG, 36570-900, Brazil
| | - M C C Souza
- Laboratory of Bacterial Diseases; Sector of Preventive Veterinary Medicine and Public Health, Universidade Federal de Viçosa, PH Rolfs Avenue, University campus, Viçosa, MG, 36570-900, Brazil
| | - F A Paolicchi
- Instituto Nacional de Tecnologı́a Agropecuaria, Balcarce, Mar del Plata National University, Mar del Plata, Argentina
| | - R A Juste
- SERIDA, Ctra. Oviedo sn, 33300, Villaviciosa, Asturias, Spain
| | - I A Carvalho
- Pathology Department; Veterinary School, Universidade Estadual do Maranhão, Campus São Luís, São Luís, Brazil
| | - M A S Moreira
- Laboratory of Bacterial Diseases; Sector of Preventive Veterinary Medicine and Public Health, Universidade Federal de Viçosa, PH Rolfs Avenue, University campus, Viçosa, MG, 36570-900, Brazil.
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10
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Magombedze G, Shiri T, Eda S, Stabel JR. Inferring biomarkers for Mycobacterium avium subsp. paratuberculosis infection and disease progression in cattle using experimental data. Sci Rep 2017; 7:44765. [PMID: 28317944 PMCID: PMC5357903 DOI: 10.1038/srep44765] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 02/09/2017] [Indexed: 12/31/2022] Open
Abstract
Available diagnostic assays for Mycobacterium avium subsp. paratuberculosis (MAP) have poor sensitivities and cannot detect early stages of infection, therefore, there is need to find new diagnostic markers for early infection detection and disease stages. We analyzed longitudinal IFN-γ, ELISA-antibody and fecal shedding experimental sensitivity scores for MAP infection detection and disease progression. We used both statistical methods and dynamic mathematical models to (i) evaluate the empirical assays (ii) infer and explain biological mechanisms that affect the time evolution of the biomarkers, and (iii) predict disease stages of 57 animals that were naturally infected with MAP. This analysis confirms that the fecal test is the best marker for disease progression and illustrates that Th1/Th2 (IFN-γ/ELISA antibodies) assays are important for infection detection, but cannot reliably predict persistent infections. Our results show that the theoretical simulated macrophage-based assay is a potential good diagnostic marker for MAP persistent infections and predictor of disease specific stages. We therefore recommend specifically designed experiments to test the use of a based assay in the diagnosis of MAP infections.
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Affiliation(s)
- Gesham Magombedze
- Center for Infectious Diseases Research and Experimental Therapeutics, Baylor Research Institute, Baylor University Medical Center, Dallas, TX, USA.,Department of Infectious Disease Epidemiology. Imperial College London, UK.,National Institute for Mathematical and Biological Synthesis, University of Tennessee, Volunteer Blvd, Suite 106, Knoxville, TN, 37996, USA
| | - Tinevimbo Shiri
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK
| | - Shigetoshi Eda
- National Institute for Mathematical and Biological Synthesis, University of Tennessee, Volunteer Blvd, Suite 106, Knoxville, TN, 37996, USA.,Department of Forestry, Wildlife, and Fisheries, University of Tennessee, Knoxville, TN 37996-1527, USA
| | - Judy R Stabel
- USDA-ARS, National Animal Disease, Ames, IA 50010, USA
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Fock-Chow-Tho D, Topp E, Ibeagha-Awemu EA, Bissonnette N. Comparison of commercial DNA extraction kits and quantitative PCR systems for better sensitivity in detecting the causative agent of paratuberculosis in dairy cow fecal samples. J Dairy Sci 2016; 100:572-581. [PMID: 27889120 DOI: 10.3168/jds.2016-11384] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Accepted: 10/04/2016] [Indexed: 11/19/2022]
Abstract
Mycobacterium avium ssp. paratuberculosis (MAP) causes ruminant paratuberculosis (Johne's disease) worldwide. Oral-fecal contamination is the most important mode of transmission of paratuberculosis, so eradicating MAP-shedding animals could prevent disease propagation. Fecal culture, a well-known method for MAP diagnosis, requires costly specialized media and a long incubation time that sometimes ends in disappointing bacterial contamination. To facilitate the efforts of control programs, we evaluated the performance of direct fecal quantitative PCR (qPCR) assays for their sensitivity and robustness for MAP detection. Commercial kits use different strategies for extracting DNA, combined with qPCR systems, to detect the presence of MAP in fecal samples. In this study, we compared the sensitivity of 3 commercially available DNA extraction kits (A, B, and C) combined with 2 qPCR systems (T and V) for the detection of MAP in infectious cows. A total of 49 dairy cows from 5 herds were sampled twice a year for 3 yr and diagnosed using fecal culture and ELISA. Eight replicates of their fecal samples from the first sampling were tested using each DNA extraction method and qPCR detection system. Although all 3 of the commercial DNA extraction kits have been previously described as very efficient for the diagnosis of paratuberculosis, kit B provided the highest sensitivity. Indeed, 89% of the cows declared positive for paratuberculosis by both fecal culture and ELISA were identified with kit B, whereas only 23 and 43% of the cows were identified with kits A and C, respectively. Interestingly, kit B was able to detect some low-MAP shedders. The qPCR detection system also played a critical role: system T yielded qPCR with the highest sensitivity. The results of this study suggest that DNA extraction kit B combined with detection system T provides the best amplification of MAP DNA from fecal samples with the highest sensitivity and specificity. Although 1 DNA extraction and qPCR analysis should be adequate to confirm that an animal with diarrhea or other signs of paratuberculosis is positive, detecting low shedders at the highest sensitivity should include repetitive testing. This study demonstrates the importance of repetitions using the most appropriate method for extracting DNA from fecal samples, combined with a compatible qPCR system for identifying MAP-shedding animals.
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Affiliation(s)
- D Fock-Chow-Tho
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Québec, J1M 0C8, Canada; Department of Biology, Université de Sherbrooke, Sherbrooke, Québec, J1K 2R1, Canada
| | - E Topp
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, Ontario, N5V 4T3, Canada
| | - E A Ibeagha-Awemu
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Québec, J1M 0C8, Canada
| | - N Bissonnette
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Québec, J1M 0C8, Canada.
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12
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Evaluation of the association between the lactation stage and serum and milk ELISA results in the diagnosis of ovine Paratuberculosis. Small Rumin Res 2016. [DOI: 10.1016/j.smallrumres.2016.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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PRESENCE OFMYCOBACTERIUM AVIUMSUBSP.PARATUBERCULOSISIN ALPACAS (LAMA PACOS) INHABITING THE CHILEAN ALTIPLANO. J Zoo Wildl Med 2016; 47:12-6. [DOI: 10.1638/2012-0255.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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14
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Salgado M, Aleuy OA, Sevilla IA, Troncoso E. Detection of Mycobacterium avium subsp. paratuberculosis in a cattle/pudu interface. ARQ BRAS MED VET ZOO 2015. [DOI: 10.1590/1678-4162-7530] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACTMycobacterium avium subsp. paratuberculosis (Map) is the etiological agent of paratuberculosis. In Chile, information about Map isolation from both domestic ruminant and wildlife species has been accumulating, but it has to be extended to other species. The present study focuses specifically on one wild grazing species, the pudu (Pudu puda), one of the less known South American deer considered an endangered species that shares pastures with cattle in southern Chile, where the greatest part of the country's dairy cattle population is located. Convenient samples from 3 pudus were collected from one dairy farm where Map infection had previously been confirmed in cattle. All three pudus shed the bacterium in feces and the isolates are the same type of Map as described for cattle. This study represents the first case report of Map isolation in the pudu captured from the wild. It is also the first documented association between a Map-infected dairy herd and free-ranging wildlife species, such as pudu in the Los Ríos region, Chile. Since interspecies transmission of Map and other pathogens from livestock to pudu has already been demonstrated, the results from this study suggest that this free-ranging wildlife specie, inhabiting a dairy district in southern Chile, might represent another case of spillover host.
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Affiliation(s)
| | | | - I. A. Sevilla
- Instituto Vasco de Investigación y Deasarrollo Agrario, España
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15
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Comparative Evaluation of Different Test Combinations for Diagnosis of Mycobacterium avium Subspecies paratuberculosis Infecting Dairy Herds in India. BIOMED RESEARCH INTERNATIONAL 2015; 2015:983978. [PMID: 25945351 PMCID: PMC4402184 DOI: 10.1155/2015/983978] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 02/24/2015] [Accepted: 03/09/2015] [Indexed: 11/30/2022]
Abstract
A total of 355 cows were sampled (serum, n = 315; faeces, n = 355; milk, n = 209) from dairy farms located in the Punjab state of India. Faeces and serum/milk samples were screened by acid fast staining and “indigenous ELISA,” respectively. IS900 PCR was used to screen faeces and milk samples. Bio-load of MAP in dairy cows was 36.9, 15.6, 16.3, and 14.4%, using microscopy, serum ELISA, milk ELISA and milk PCR, respectively. Estimated kappa values between different test combinations: serum and milk ELISA, faecal microscopy and faecal PCR, milk ELISA and milk PCR, faecal PCR and serum ELISA were 0.325, 0.241, 0.682, and 0.677, respectively. Estimation of the relative sensitivity and specificity of different tests in the present study indicated that “serum ELISA” and “milk ELISA” were good screening tests, add “milk PCR” was “confirmatory test” for MAP infection. Combination of milk ELISA with milk PCR may be adopted as a model strategy for screening and diagnosis of JD in lactating/dairy cattle herds in Indian conditions.
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16
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Systematic review of the prevalence of paratuberculosis in cattle, sheep, and goats in Latin America and the Caribbean. Trop Anim Health Prod 2014; 46:1321-40. [DOI: 10.1007/s11250-014-0656-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 07/30/2014] [Indexed: 11/27/2022]
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17
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Angelidou E, Kostoulas P, Leontides L. Bayesian validation of a serum and milk ELISA for antibodies against Mycobacterium avium subspecies paratuberculosis in Greek dairy goats across lactation. J Dairy Sci 2014; 97:819-28. [DOI: 10.3168/jds.2013-7218] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 11/07/2013] [Indexed: 11/19/2022]
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18
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Roncada P, Piras C, Soggiu A, Turk R, Urbani A, Bonizzi L. Farm animal milk proteomics. J Proteomics 2012; 75:4259-74. [PMID: 22641156 DOI: 10.1016/j.jprot.2012.05.028] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 05/09/2012] [Accepted: 05/16/2012] [Indexed: 12/28/2022]
Abstract
Milk is one of the most important nutrients for humans during lifetime. Farm animal milk in all its products like cheese and other fermentation and transformation products is a widespread nutrient for the entire life of humans. Proteins are key molecules of the milk functional component repertoire and their investigation represents a major challenge. Proteins in milk, such as caseins, contribute to the formation of micelles that are different from species to species in dimension and casein-type composition; they are an integral part of the MFGM (Milk Fat Globule Membrane) that has being exhaustively studied in recent years. Milk proteins can act as enzymes or have an antimicrobial activity; they could act as hormones and, last but not least, they have a latent physiological activity encoded in their primary structure that turns active when the protein is cleaved by fermentation or digestion processes. In this review we report the last progress in proteomics, peptidomics and bioinformatics. These new approaches allow us to better characterize the milk proteome of farm animal species, to highlight specific PTMs, the peptidomic profile and even to predict the potential nutraceutical properties of the analyzed proteins.
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Affiliation(s)
- Paola Roncada
- Istituto Sperimentale Italiano L. Spallanzani, Milano, Italy.
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19
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Assessment of food as a source of exposure to Mycobacterium avium subspecies paratuberculosis (MAP). J Food Prot 2010; 73:1357-97. [PMID: 20615354 DOI: 10.4315/0362-028x-73.7.1357] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The National Advisory Committee on Microbiological Criteria for Foods assessed the importance of food as a source of exposure to Mycobacterium avium subspecies paratuberculosis (MAP). MAP is the causative agent of Johne's disease, which affects primarily the small intestine of all ruminants. The significance of MAP as a human pathogen is unknown and is being investigated by several research groups. This document also reviews the efficacy of current detection methods, processing interventions, and MAP inactivation. Research needs related to MAP are provided. The Committee reached the following conclusions: current methods for detection of MAP have significant limitations, and a standard method for the detection of viable MAP cells is needed. Aside from MAP-infected domestic ruminant animals, the organism is found infrequently. If MAP in cattle is controlled, the source of MAP in other animals, food, and water may largely be eliminated. Milk, particularly raw milk, may be a likely food source for human exposure to MAP. Given the prevalence of MAP in U.S. cattle herds, ground beef may be a potential source of MAP. Although humans may be exposed to MAP through a variety of routes, including food and the environment, the frequency and amount of exposure will require additional research.
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Affiliation(s)
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- U.S. Department of Agriculture, Food Safety and Inspection Service, Office of Public Health Science, Washington, DC 20250-3700, USA
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Gioffré A, Echeverría-Valencia G, Arese A, Morsella C, Garbaccio S, Delgado F, Zumárraga M, Paolicchi F, Cataldi A, Romano M. Characterization of the Apa antigen from M. avium subsp. paratuberculosis: A conserved Mycobacterium antigen that elicits a strong humoral response in cattle. Vet Immunol Immunopathol 2009; 132:199-208. [DOI: 10.1016/j.vetimm.2009.06.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2008] [Revised: 02/17/2009] [Accepted: 06/15/2009] [Indexed: 10/20/2022]
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