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Sala G, Orsetti C, Meucci V, De Marchi L, Sgorbini M, Bonelli F. Case-Control Study: Endogenous Procalcitonin and Protein Carbonylated Content as a Potential Biomarker of Subclinical Mastitis in Dairy Cows. Vet Sci 2023; 10:670. [PMID: 38133221 PMCID: PMC10747190 DOI: 10.3390/vetsci10120670] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/13/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023] Open
Abstract
Procalcitonin (PCT) and protein carbonylated content (PCC) are promising biomarkers for bacterial infection and inflammation in veterinary medicine. This study examined plasma PCT and PCC levels in healthy cows (H) and cows with subclinical mastitis (SCM). A total of 130 cows (65 H and 65 SCM) were included in this study. Blood samples were collected, and plasma was frozen at -80 °C. PCT levels were determined using a bovine procalcitonin ELISA kit, while PCC was measured following the methodology of Levine et al. Statistical analysis revealed a significant difference in PCT levels between H (75.4 pg/mL) and SCM (107.3 pg/mL) cows (p < 0.001) and significantly lower concentrations of PCC in the SCM group (H: 0.102 nmol/mL/mg, SCM: 0.046 nmol/mL/mg; p < 0.001). The PCT cut-off value for distinguishing healthy and subclinical mastitis animals was >89.8 pg/mL (AUC 0.695), with a sensitivity of 66.2% and specificity of 69.2%. PCT showed potential value as a diagnostic tool to help in decision making for subclinical mastitis cases, while PCC requires further studies to investigate the trend of this biomarker during localized pathology.
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Affiliation(s)
- Giulia Sala
- Department of Veterinary Sciences, University of Pisa, Via Livornese s.n.c., San Piero a Grado, 56122 Pisa, Italy; (C.O.); (V.M.); (L.D.M.); (M.S.); (F.B.)
- Centro di Ricerche Agro-Ambientali “E. Avanzi”, University of Pisa, San Piero a Grado (PI), 56122 Pisa, Italy
| | - Chiara Orsetti
- Department of Veterinary Sciences, University of Pisa, Via Livornese s.n.c., San Piero a Grado, 56122 Pisa, Italy; (C.O.); (V.M.); (L.D.M.); (M.S.); (F.B.)
- Centro di Ricerche Agro-Ambientali “E. Avanzi”, University of Pisa, San Piero a Grado (PI), 56122 Pisa, Italy
| | - Valentina Meucci
- Department of Veterinary Sciences, University of Pisa, Via Livornese s.n.c., San Piero a Grado, 56122 Pisa, Italy; (C.O.); (V.M.); (L.D.M.); (M.S.); (F.B.)
| | - Lucia De Marchi
- Department of Veterinary Sciences, University of Pisa, Via Livornese s.n.c., San Piero a Grado, 56122 Pisa, Italy; (C.O.); (V.M.); (L.D.M.); (M.S.); (F.B.)
| | - Micaela Sgorbini
- Department of Veterinary Sciences, University of Pisa, Via Livornese s.n.c., San Piero a Grado, 56122 Pisa, Italy; (C.O.); (V.M.); (L.D.M.); (M.S.); (F.B.)
- Centro di Ricerche Agro-Ambientali “E. Avanzi”, University of Pisa, San Piero a Grado (PI), 56122 Pisa, Italy
| | - Francesca Bonelli
- Department of Veterinary Sciences, University of Pisa, Via Livornese s.n.c., San Piero a Grado, 56122 Pisa, Italy; (C.O.); (V.M.); (L.D.M.); (M.S.); (F.B.)
- Centro di Ricerche Agro-Ambientali “E. Avanzi”, University of Pisa, San Piero a Grado (PI), 56122 Pisa, Italy
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Neumann S, Siegert S, Fischer A. Procalcitonin as an Endogenous Biomarker for Mastitis in Cows. Animals (Basel) 2023; 13:2204. [PMID: 37444002 DOI: 10.3390/ani13132204] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/03/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Mastitis is one of the most common diseases of dairy cows. Procalcitonin (PCT) has been described as an endogenous inflammatory biomarker for bacterial infections. The aim of this study was to find possible correlations between PCT concentrations in the serum and milk of cows with mastitis and their clinical signs and disease progression. In total, 88 dairy cows were examined, of which 30 animals were diagnosed with clinical mastitis, 30 had subclinical mastitis, and 28 were designated as a healthy control group. The diseased animals were re-examined after 12 days. All PCT levels in this study were determined by a species-specific ELISA. All three groups could be differentiated from each other based on serum and milk PCT levels. The animals with clinical mastitis showed the highest mean concentrations of PCT (serum: 2641 pg/mL; milk: 1326 pg/mL), and the lowest PCT concentrations were found in the healthy control group (serum: 1166 pg/mL; milk: 176 pg/m). Over the course of the disease, results from the kinetics study showed that PCT levels remained high for the entire observation period. The results from this study showed that the PCT concentration could be used to differentiate between clinical mastitis, subclinical mastitis, and healthy cows.
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Affiliation(s)
- Stephan Neumann
- Institute of Veterinary Medicine, Georg-August University of Goettingen, D-37077 Goettingen, Germany
| | - Stephan Siegert
- Institute of Veterinary Medicine, Georg-August University of Goettingen, D-37077 Goettingen, Germany
| | - Anneke Fischer
- Institute of Veterinary Medicine, Georg-August University of Goettingen, D-37077 Goettingen, Germany
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