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Title

Assessment of acute-phase protein response associated with the different pathological forms of bovine paratuberculosis

AuthorsEspinosa Cerrato, José ; Morena, R. de la; Benavides, Julio CSIC ORCID ; García Pariente, C.; Fernández, M. CSIC ORCID ; Tesouro, M.; Arteche, Noive ; Vallejo García, Raquel; Ferreras, Mª del Carmen CSIC ORCID ; Pérez Pérez, Valentín CSIC ORCID
KeywordsBovine
Haptoglobin
Serum amyloid A
Mycobacterium avium subsp. paratuberculosis
Types of lesion
Serum samples
Issue Date2020
PublisherMultidisciplinary Digital Publishing Institute
CitationAnimals 10: 1925 (2020)
AbstractIn this study, the concentrations of two acute-phase proteins (APPs), haptoglobin (Hp) and serum amyloid A (SAA), were quantitatively assessed in serum samples from cattle naturally infected with paratuberculosis (PTB). APP profiles were compared across 190 animals classified according to the different pathological forms associated with infection: uninfected (n = 59), with focal lesions (n = 73), multifocal lesions (n = 19), and diffuse paucibacillary (n = 11) and diffuse multibacillary lesions (n = 28). Our results showed a significant increase in both APPs in infected animals compared to the control group, with differences depending on the type of lesion. Hp and SAA levels were increased significantly in all infected animals, except in cows with diffuse multibacillary lesions that showed similar values to non-infected animals. The expression pattern of both APPs was similar and negatively correlated with the antibody levels against PTB. These results indicate that the release of Hp and SAA is related to the presence of PTB lesions associated with a high cell-mediated immune response and a lower bacterial load, suggesting that the pro-inflammatory cytokines that are associated with these forms are the main stimulus for their synthesis. These molecules could show some potential to be used as putative biomarkers of PTB infection, particularly for the identification of subclinical animals showing pathological forms related to latency or resistance to the development of advanced lesions.
Description11 páginas, 1 tabla.
Publisher version (URL)http://dx.doi.org/10.3390/ani10101925
URIhttp://hdl.handle.net/10261/225248
DOI10.3390/ani10101925
Identifiersdoi: 10.3390/ani10101925
issn: 2076-2615
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