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Asawapattanakul T, Pintapagung T, Piratae S, Juntautsa S, Chancharoen P. Erythrocyte sedimentation rate, C-reactive protein, and interleukin-6 as inflammatory biomarkers in dogs naturally infected with Ehrlichia canis. Vet World 2021; 14:2325-2331. [PMID: 34840450 PMCID: PMC8613769 DOI: 10.14202/vetworld.2021.2325-2331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/29/2021] [Indexed: 01/28/2023] Open
Abstract
Background and Aim Canine monocytotropic ehrlichiosis (CME), a tick-borne disease, leads to a systemic inflammatory response syndrome; it is thus important to assess the intensity of inflammation in order to treat it appropriately. The current study was designed to evaluate hematological, biochemical, and inflammatory parameters in dogs naturally infected with Ehrlichia canis compared with those in healthy dogs. We also assessed the relationship among several inflammation-related parameters and considered these parameters for use as inflammatory biomarkers of CME. Materials and Methods Twenty-eight dogs were divided into two groups based on the results of nested polymerase chain reaction for detecting E. canis, comprising a healthy group (n=11) and an infected group (n=17). A blood sample was collected from each dog to evaluate hematological, biochemical, and inflammatory parameters, with the obtained results being statistically compared between the groups. Moreover, the correlations of erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and interleukin-6 (IL-6) were investigated in the 28 dogs. Results In the infected group, the mean levels of red blood cells, hemoglobin, and hematocrit were significantly lower than in the healthy group, while the mean lymphocyte and monocyte counts were higher. The mean levels of ESR and CRP were significantly higher (p<0.05) in the infected group, whereas no significant differences were found in IL-6 levels between the two groups. In the correlation analysis, ESR and CRP levels were highly correlated (p<0.01, r=0.531). Conclusion Elevated ESR and CRP levels were found in dogs naturally infected with E. canis, which also presented mild to moderate inflammation in this study. Moreover, CRP was significantly correlated with ESR, so ESR and CRP may serve as inflammatory biomarkers for monitoring CME.
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Affiliation(s)
- Thanaporn Asawapattanakul
- Oxidative Stress Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham 44000, Thailand
| | - Tanagorn Pintapagung
- Veterinary Clinic Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham 44000, Thailand
| | - Supawadee Piratae
- One Health Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham 44000, Thailand
| | - Siriluck Juntautsa
- Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham 44000, Thailand
| | - Pawarat Chancharoen
- Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham 44000, Thailand
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Keany KM, Fosgate GT, Perry SM, Stroup ST, Steiner JM. Serum concentrations of canine pancreatic lipase immunoreactivity and C-reactive protein for monitoring disease progression in dogs with acute pancreatitis. J Vet Intern Med 2021; 35:2187-2195. [PMID: 34250650 PMCID: PMC8478023 DOI: 10.1111/jvim.16218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/19/2021] [Accepted: 06/22/2021] [Indexed: 12/02/2022] Open
Abstract
Background Reliable biomarkers for monitoring disease progression and management in dogs with acute pancreatitis have not been described. Objective To determine if serum concentrations of canine pancreatic lipase immunoreactivity (cPLI) and C‐reactive protein (CRP) can be used as biomarkers for disease progression in hospitalized dogs with acute pancreatitis. Animals Thirteen hospitalized dogs with acute pancreatitis diagnosed based on clinical signs, serum cPLI concentrations, and imaging findings were enrolled. Methods Serum cPLI and CRP concentrations were determined before and then daily during hospital management and 1 week after hospital discharge. Modified canine activity index (MCAI) and canine acute pancreatitis clinical severity index (CAPCSI) scores were calculated daily for each patient while hospitalized. Results The MCAI scores (P = .03) but not CAPCSI scores (P = .31) were significantly different between dogs that survived to discharge (n = 11) and those that did not (n = 2). Serum cPLI concentration was positively correlated with MCAI (rho = 0.42; P = .01). Serum CRP concentration also was positively correlated with the MCAI (rho = 0.42, P = .01). Conclusions Serum cPLI and possibly CRP could be used as objective biomarkers for clinical changes in hospitalized dogs with acute pancreatitis. Additional studies involving larger numbers of dogs would be warranted to evaluate the broader impact of these findings.
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Affiliation(s)
- Kirstin M Keany
- MedVet New Orleans, Louisiana and MedVet Mandeville, Louisiana, USA
| | - Geoffrey T Fosgate
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa
| | - Sean M Perry
- Department of Veterinary Services, Mississippi Aquarium, Gulfport, Mississippi, USA
| | - Shannon T Stroup
- MedVet New Orleans, Louisiana and MedVet Mandeville, Louisiana, USA
| | - Joerg M Steiner
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
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Foreman M, Vettorato E, Caine A, Monti P, Cherubini GB, Eminaga S. Serum C-reactive protein in dogs with paraplegia secondary to acute intervertebral disc extrusion. J Vet Intern Med 2021; 35:1857-1864. [PMID: 34085305 PMCID: PMC8295702 DOI: 10.1111/jvim.16179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 05/05/2021] [Accepted: 05/14/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Apart from the absence of nociception, there is no readily available prognostic test for dogs presenting with paraplegia secondary to acute intervertebral disc extrusion (IVDE). OBJECTIVE To assess if serum C-reactive protein (CRP) can predict the postoperative outcome in paraplegic dogs undergoing surgery for IVDE and to assess the association between serum CRP and presence/absence of nociception on admission, and serum CRP and presence/absence of intramedullary changes seen on magnetic resonance imaging (MRI). ANIMALS One hundred dogs that underwent surgery at our hospital between 2018 and 2020 because of acute paraplegia secondary to IVDE and in which serum CRP was measured. METHODS Retrospective observational cohort study. Dogs were classified as 4 or 5 according to the modified Frankel score (MFS) depending on presence/absence of nociception, respectively. MRI images were reviewed and the T2-weighted hyperintensity: L2 vertebral body length was measured. Postoperative outcome was defined as positive if nociception, ambulation or both returned after decompressive surgery. RESULTS The median (95% CI) serum CRP was 4 (4-5) and 6 (4-7) mg/L in MSF4 and MSF5, respectively (P = .03). A weak linear relationship (R2 = 0.049, P = .03) was found between CRP and the T2-weighted hyperintensity: L2 vertebral length. Outcome data was available for 85 dogs: CRP was 4 (4-5) and 5 (4-10) mg/L in positive and negative outcome dogs, respectively (P = .32). CONCLUSION AND CLINICAL IMPORTANCE Serum CRP did not predict outcome after surgery in dogs with paraplegia secondary to IVDE.
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Affiliation(s)
| | | | - Abby Caine
- Dick White Referrals, Cambs, United Kingdom
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Escribano D, Cihan H, Martínez-Subiela S, Levent P, Kocaturk M, Aytug N, Cerón JJ, Tvarijonaviciute A, Yilmaz Z. Changes in serum proteins in dogs with Ehrlichia canis infection. Microb Pathog 2017; 113:34-39. [PMID: 29042303 DOI: 10.1016/j.micpath.2017.10.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/13/2017] [Accepted: 10/13/2017] [Indexed: 01/20/2023]
Abstract
The aim of this study was the identification of proteins differentially represented in the serum proteome of seropositive dogs with (Group 1) and without (Group 2) clinical-pathologic signs consistent with ehrlichiosis compared to healthy control dogs. Serum samples were collected from 20 dogs of various breeds with naturally occurring ehrlichiosis (10 dogs belonged to Group 1 and 10 to Group 2) and 10 healthy dogs. Two-dimensional electrophoresis (2DE) of pooled serum for each of the group of dogs were run in triplicate. 2D image analysis showed 39 spots differently expressed between Group 1 and Group 2 compared with healthy ones. Mass spectrometry analysis allowed identification of 6 proteins: albumin, haptoglobin (Hp), alpha-1-antitrypsin (AAT), Retinol Binding Protein 4 (RBP-4), alpha-1-acid glycoprotein (AGP) and vitamin D-binding protein (VDBP). When a confirmatory study was performed for albumin, Hp, AAT and RBP-4 by using different assays, significant differences (P < 0.05) between diseased and healthy groups were observed. It can be concluded that there are significant changes in the serum proteome of dogs with ehrlichiosis with modifications in proteins related with the acute phase response such as Hp, albumin and AGP, with vitamin A transport such as RBP-4, with inhibitors of serine proteases and anti-inflammatory proteins such as AAT, and vitamin D metabolism and actin scavengers such as VDBP.
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Affiliation(s)
- Damián Escribano
- Interlab-UMU, Campus de Excelencia "Mare Nostrum", University of Murcia, 30100, Espinardo, Murcia, Spain; Department of Animal and Food Science, School of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Hüseyin Cihan
- Department of Internal Medicine, Faculty of Veterinary Medicine, Uludag University, 16059, Bursa, Turkey
| | - Silvia Martínez-Subiela
- Interlab-UMU, Campus de Excelencia "Mare Nostrum", University of Murcia, 30100, Espinardo, Murcia, Spain
| | - Pinar Levent
- Department of Internal Medicine, Faculty of Veterinary Medicine, Uludag University, 16059, Bursa, Turkey
| | - Meric Kocaturk
- Department of Internal Medicine, Faculty of Veterinary Medicine, Uludag University, 16059, Bursa, Turkey
| | - Nilüfer Aytug
- Department of Internal Medicine, Faculty of Veterinary Medicine, Uludag University, 16059, Bursa, Turkey
| | - Jose Joaquin Cerón
- Interlab-UMU, Campus de Excelencia "Mare Nostrum", University of Murcia, 30100, Espinardo, Murcia, Spain
| | - Asta Tvarijonaviciute
- Interlab-UMU, Campus de Excelencia "Mare Nostrum", University of Murcia, 30100, Espinardo, Murcia, Spain.
| | - Zeki Yilmaz
- Department of Internal Medicine, Faculty of Veterinary Medicine, Uludag University, 16059, Bursa, Turkey
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Mylonakis ME, Theodorou KN. Canine Monocytic Ehrlichiosis: An Update on Diagnosis and Treatment. ACTA VET-BEOGRAD 2017. [DOI: 10.1515/acve-2017-0025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Abstract
Canine monocytic ehrlichiosis (CME) is a tick-borne disease of worldwide distribution. The major causative agent is Ehrlichia canis, a gram-negative, obligate intracellular, pleomorphic bacterium of the genus Ehrlichia, which infects monocytes, macrophages and lymphocytes, forming intracytoplasmic, membrane-bound bacterial aggregates, called morulae. After an incubation period of 8-20 days, the course of E. canis infection, can be sequentially divided into acute, subclinical and chronic phases, although these phases can hardly be distinguished in the clinical setting. Clinical recovery is the typical outcome of acutely infected dogs, entering the subclinical phase, during which they show no or minimal clinical signs and/or mild hematological abnormalities. Immunocompetent dogs may eliminate the infection during the acute or subclinical phases, but an unpredictable proportion of dogs will eventually develop the chronic phase, characterized by aplastic pancytopenia and high mortality, due to septicemia and/or severe bleeding. This article outlines briefly the pathogenesis of CME due to E. canis, and more thoroughly reviews the recent scientific literature pertaining to the diagnosis and treatment of this devastating disease.
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Affiliation(s)
- Mathios E. Mylonakis
- Konstantina N. Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki , Greece
| | - Konstantina N. Theodorou
- Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki , Greece
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Acute phase protein and antioxidant responses in dogs with experimental acute monocytic ehrlichiosis treated with rifampicin. Vet Microbiol 2016; 184:59-63. [PMID: 26854345 DOI: 10.1016/j.vetmic.2016.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 01/03/2016] [Accepted: 01/06/2016] [Indexed: 02/07/2023]
Abstract
There is currently lack of information on the changes of acute phase proteins (APP) and antioxidant markers and their clinical relevance as treatment response indicators in canine monocytic ehrlichiosis (CME). The objective of this study was to investigate the patterns of C-reactive protein (CRP), haptoglobin (Hp), ferritin and paraoxonase-1 (PON-1) during treatment of dogs with acute CME with rifampicin. Blood serum samples from ten Beagle dogs with experimental acute CME were retrospectively examined. Five dogs (Group A) were treated with rifampicin (10mg/Kg/24h), per os, for 3 weeks and 5 dogs (Group B) received no treatment (infected controls). Two Beagle dogs served as uninfected controls. Blood serum samples were serially examined prior to Ehrlichia canis inoculation and on post-inoculation days 14, 21, 28, 35 and 42. Significant changes of CRP, Hp, ferritin and PON-1 values were found in the majority of infected dogs. However, their concentrations did not differ between the two groups during the treatment observation period. The results of this study indicate that although several APP and PON-1 tend to significantly change in the majority of dogs with acute CME, they were of limited clinical relevance as treatment response indicators in this experimental setting.
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Rudoler N, Harrus S, Martinez-Subiela S, Tvarijonaviciute A, van Straten M, Cerón JJ, Baneth G. Comparison of the acute phase protein and antioxidant responses in dogs vaccinated against canine monocytic ehrlichiosis and naive-challenged dogs. Parasit Vectors 2015; 8:175. [PMID: 25888870 PMCID: PMC4371631 DOI: 10.1186/s13071-015-0798-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 03/12/2015] [Indexed: 01/31/2023] Open
Abstract
Background Canine monocytic ehrlichiosis (CME) is a tick-borne disease with a global distribution, caused by Ehrlichia canis. The inflammatory response to E. canis infection includes changes in certain acute phase proteins (APP) and in biomarkers of the oxidative status. APP responses are considered part of the innate immune response to CME. The aim of this study was to evaluate the APP and oxidative marker responses in dogs vaccinated against CME with an attenuated vaccine and subsequently challenged with a wild E. canis strain. Methods The study included 3 groups of 4 beagle dogs. Group 1 dogs were inoculated subcutaneously with an attenuated E. canis vaccine on day 0, and again on day 213. Group 2 initially served as controls for group 1 during the vaccination phase and then vaccinated once on day 213. Group 3 consisted of naïve dogs which constituted the control group for the challenge phase. All 12 dogs were infected intravenously with a wild strain of E. canis on day 428 of the study. APP levels were serially measured during two periods: days 0–38 post-vaccination (groups 1 and 2) and days 0–39 post-challenge (groups 1, 2, 3). Results Changes in C-reactive protein (CRP), serum amyloid A (SAA), haptoglobin, albumin, paraoxonase-1 (PON-1) and total antioxidant capacity (TAC) were of significantly smaller magnitude in vaccinated dogs and appeared later on a time scale compared to unvaccinated dogs challenged with a wild strain. Alterations in the level of APP during the vaccination phase of the study were of lower extent compared to those in the challenged unvaccinated dogs during the post-challenge phase. Positive APP levels correlated positively with the rickettsial load, body temperature and negatively with the thrombocyte counts (p < 0.05). Conclusions Vaccination with an attenuated E. canis strain and challenge with a wild strain resulted in considerably reduced responses of positive and negative APP, and oxidative biomarker responses in vaccinated compared to unvaccinated dogs, reflecting a milder innate inflammatory response conferred by protection of the vaccine. Electronic supplementary material The online version of this article (doi:10.1186/s13071-015-0798-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nir Rudoler
- Koret School of Veterinary Medicine, Hebrew University, P.O. Box 12, Rehovot, 76100, Israel.
| | - Shimon Harrus
- Koret School of Veterinary Medicine, Hebrew University, P.O. Box 12, Rehovot, 76100, Israel.
| | - Silvia Martinez-Subiela
- Interdisciplinary Laboratory of Clinical Pathology, Interlab-UMU, Campus of Excellence Mare Nostrum, University of Murcia, 30100, Espinardo, Murcia, Spain.
| | - Asta Tvarijonaviciute
- Interdisciplinary Laboratory of Clinical Pathology, Interlab-UMU, Campus of Excellence Mare Nostrum, University of Murcia, 30100, Espinardo, Murcia, Spain.
| | - Michael van Straten
- Koret School of Veterinary Medicine, Hebrew University, P.O. Box 12, Rehovot, 76100, Israel.
| | - Jose J Cerón
- Interdisciplinary Laboratory of Clinical Pathology, Interlab-UMU, Campus of Excellence Mare Nostrum, University of Murcia, 30100, Espinardo, Murcia, Spain.
| | - Gad Baneth
- Koret School of Veterinary Medicine, Hebrew University, P.O. Box 12, Rehovot, 76100, Israel.
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Kuleš J, Mrljak V, Barić Rafaj R, Selanec J, Burchmore R, Eckersall PD. Identification of serum biomarkers in dogs naturally infected with Babesia canis canis using a proteomic approach. BMC Vet Res 2014; 10:111. [PMID: 24885808 PMCID: PMC4045879 DOI: 10.1186/1746-6148-10-111] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 04/07/2014] [Indexed: 11/30/2022] Open
Abstract
Background Canine babesiosis is a tick-borne disease that is caused by the haemoprotozoan parasites of the genus Babesia. There are limited data on serum proteomics in dogs, and none of the effect of babesiosis on the serum proteome. The aim of this study was to identify the potential serum biomarkers of babesiosis using proteomic techniques in order to increase our understanding about disease pathogenesis. Results Serum samples were collected from 25 dogs of various breeds and sex with naturally occurring babesiosis caused by B. canis canis. Blood was collected on the day of admission (day 0), and subsequently on the 1st and 6th day of treatment. Two-dimensional electrophoresis (2DE) of pooled serum samples of dogs with naturally occurring babesiosis (day 0, day 1 and day 6) and healthy dogs were run in triplicate. 2DE image analysis showed 64 differentially expressed spots with p ≤ 0.05 and 49 spots with fold change ≥2. Six selected spots were excised manually and subjected to trypsin digest prior to identification by electrospray ionisation mass spectrometry on an Amazon ion trap tandem mass spectrometry (MS/MS). Mass spectrometry data was processed using Data Analysis software and the automated Matrix Science Mascot Daemon server. Protein identifications were assigned using the Mascot search engine to interrogate protein sequences in the NCBI Genbank database. A number of differentially expressed serum proteins involved in inflammation mediated acute phase response, complement and coagulation cascades, apolipoproteins and vitamin D metabolism pathway were identified in dogs with babesiosis. Conclusions Our findings confirmed two dominant pathogenic mechanisms of babesiosis, haemolysis and acute phase response. These results may provide possible serum biomarker candidates for clinical monitoring of babesiosis and this study could serve as the basis for further proteomic investigations in canine babesiosis.
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Affiliation(s)
| | | | | | | | | | - Peter D Eckersall
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.
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Viitanen SJ, Laurila HP, Lilja-Maula LI, Melamies MA, Rantala M, Rajamäki MM. Serum C-reactive protein as a diagnostic biomarker in dogs with bacterial respiratory diseases. J Vet Intern Med 2013; 28:84-91. [PMID: 24351049 PMCID: PMC4895528 DOI: 10.1111/jvim.12262] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 09/25/2013] [Accepted: 10/23/2013] [Indexed: 12/01/2022] Open
Abstract
Background C‐reactive protein (CRP) is a major acute‐phase protein in dogs. Serum concentrations are low in healthy animals, but increase rapidly after inflammatory stimuli. Objective The aim of the study was to investigate CRP concentrations in various respiratory diseases of dogs and to determine if CRP can be used as a biomarker in the diagnosis of bacterial respiratory diseases. Animals A total of 106 privately owned dogs with respiratory diseases (17 with bacterial tracheobronchitis [BTB], 20 with chronic bronchitis [CB], 20 with eosinophilic bronchopneumopathy [EBP], 12 with canine idiopathic pulmonary fibrosis [CIPF], 15 with cardiogenic pulmonary edema [CPE], and 22 with bacterial pneumonia [BP]) and 72 healthy controls. Methods The study was conducted as a prospective cross‐sectional observational study. CRP was measured in serum samples. Diagnosis was confirmed by clinical and laboratory findings, diagnostic imaging, and selected diagnostic methods such as cytological and microbiological analysis of respiratory samples, echocardiography, and histopathology. Results Dogs with BP had significantly higher CRP concentrations (median, 121 mg/L; interquartile range, 68–178 mg/L) than dogs with BTB (23, 15–38, P = .0003), CB (13, 8–14, P < .0001), EBP (5, 5–15, P < .0001), CIPF (17, 10–20, P < .0001), or CPE (19, 13–32, P < .0001) and healthy controls (14, 8–20, P < .0001). Dogs with BTB had significantly higher CRP concentrations than dogs with CB (P = .001) or EBP (P < .0001) and healthy controls (P = .029). Conclusion and Clinical Importance These results indicate that CRP has potential for use as an additional biomarker, especially in the diagnostics of BP.
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Affiliation(s)
- S J Viitanen
- Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Finland
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McClure V, van Schoor M, Thompson PN, Kjelgaard-Hansen M, Goddard A. Evaluation of the use of serum C-reactive protein concentration to predict outcome in puppies infected with canine parvovirus. J Am Vet Med Assoc 2013; 243:361-6. [DOI: 10.2460/javma.243.3.361] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Serum proteinogram, acute phase proteins and immunoglobulins in dogs experimentally infected with Rangelia vitalii. Vet Parasitol 2013; 192:137-42. [DOI: 10.1016/j.vetpar.2012.09.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 09/25/2012] [Accepted: 09/27/2012] [Indexed: 11/18/2022]
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Munhoz TD, Faria JLM, Vargas-Hérnandez G, Fagliari JJ, Santana ÁE, Machado RZ, Tinucci-Costa M. Experimental Ehrlichia canis infection changes acute-phase proteins. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA 2012; 21:206-12. [DOI: 10.1590/s1984-29612012000300006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Accepted: 03/06/2012] [Indexed: 11/22/2022]
Abstract
Early diagnosis of canine ehrlichiosis favors prompt institution of treatment and improves the prognosis for the animal, since this disease causes mortality among dogs. Studies have shown that determining the concentration of acute-phase proteins (APPs) may contribute towards early detection of disease and aid in predicting the prognosis. This study aimed to evaluate the APP profile in dogs experimentally infected with Ehrlichia canis, at the start of the infection and after treatment. It also investigated whether any correlation between APP levels and the clinical and laboratory alterations over the course of the disease would be possible. The results obtained showed abnormal levels of all the APPs on the third day after infection (D3), with the highest levels being reached on D18, with the exception of ceruloplasmin and acid glycoprotein, which presented their peaks on D6 and D12 respectively. We concluded that assessment of APP levels could contribute towards establishing an early diagnosis of canine ehrlichiosis, particularly regarding acid glycoprotein and ceruloplasmin, since these proteins were detected at increased levels even before the onset of clinical and laboratory findings of the disease.
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Abstract
Acute phase proteins (APP) were first identified in the early 1900s as early reactants to infectious disease. They are now understood to be an integral part of the acute phase response (APR) which is the cornerstone of innate immunity. APP have been shown to be valuable biomarkers as increases can occur with inflammation, infection, neoplasia, stress, and trauma. All animals--from fish to mammals--have demonstrable APP, but the type of major APP differs by species. While the primary application of these proteins in a clinical setting is prognostication, studies in animals have demonstrated relevance to diagnosis and detection and monitoring for subclinical disease. APP have been well documented in laboratory, companion, and large animals. With the advent of standardized and automated assays, these biomarkers are available for use in all fields of veterinary medicine as well as basic and clinical research.
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Acute phase proteins in healthy and sick cats. Res Vet Sci 2011; 93:649-54. [PMID: 22209081 DOI: 10.1016/j.rvsc.2011.11.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Revised: 02/25/2011] [Accepted: 11/13/2011] [Indexed: 11/22/2022]
Abstract
Serum acute phase protein concentrations are used as diagnostic, therapeutic and prognostic markers in human and, less frequently, in animal medicine. The aim of this study was to determine how the health status and signalment of the cat are associated with concentrations of acute phase proteins. Generally, medians of the positive acute phase proteins appeared to be higher in sick cats compared to healthy cats. In multivariable regression models, log-transformed serum amyloid A concentration was higher in older cats, in sick and in female cats, while log-transformed α1-acid glycoprotein and haptoglobin concentrations were higher in older cats and were associated with interactions of health status (sick/healthy) and gender (male/female). The data from healthy cats in this study contribute to the limited knowledge of normal reference ranges for this species. This study highlights the potential of acute phase proteins as diagnostic markers in sick cats, but also emphasises that the signalment of the cat needs to be taken into consideration.
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Mylonakis M, Ceron J, Leontides L, Siarkou V, Martinez S, Tvarijonaviciute A, Koutinas A, Harrus S. Serum Acute Phase Proteins as Clinical Phase Indicators and Outcome Predictors in Naturally Occurring Canine Monocytic Ehrlichiosis. J Vet Intern Med 2011; 25:811-7. [DOI: 10.1111/j.1939-1676.2011.0728.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Harrus S, Waner T. Diagnosis of canine monocytotropic ehrlichiosis (Ehrlichia canis): An overview. Vet J 2011; 187:292-6. [DOI: 10.1016/j.tvjl.2010.02.001] [Citation(s) in RCA: 168] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2009] [Revised: 01/25/2010] [Accepted: 02/02/2010] [Indexed: 11/26/2022]
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Wakshlag JJ, Stokol T, Geske SM, Greger CE, Angle CT, Gillette RL. Evaluation of exercise-induced changes in concentrations of C-reactive protein and serum biochemical values in sled dogs completing a long-distance endurance race. Am J Vet Res 2010; 71:1207-13. [PMID: 20919909 DOI: 10.2460/ajvr.71.10.1207] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine whether long-distance endurance exercise in sled dogs causes increases in serum concentrations of C-reactive protein (CRP) and whether such increases are correlated with other markers of the exercise-induced acute-phase response. ANIMALS 25 sled dogs. PROCEDURES Serum was obtained from 25 sled dogs approximately 48 hours before and immediately after completing a race of 557 km. Serum was analyzed to determine concentrations of CRP and interleukin (IL)-6, and serum biochemical analysis (and iron homeostasis analysis) also was performed. RESULTS CRP concentrations increased significantly from a mean±SD concentration of 22.4±16.3 microg/mL before racing to a mean of 263.3±103.8 microg/mL immediately after racing Serum IL-6 concentrations were unchanged; however, there was a modest but significant correlation (r=0.50) between the increase in CRP concentration and an overall decrease in serum albumin concentration, which suggested an inverse relationship between hepatic synthesis of the 2 proteins. Differences in CRP concentrations among teams of dogs revealed that concentrations before racing may be influenced by previous episodes of exercise. Serum iron concentration had only a mild decrease, which may have been attributable to iron-rich diets consumed by the dogs. CONCLUSIONS AND CLINICAL RELEVANCE CRP concentrations may serve as a potential marker for exercise-induced inflammation. The exact amount of exercise required to induce such a response is unknown, but dogs apparently have a more robust acute-phase response than do humans. Clinical evaluation of CRP concentrations must account for physical activity when those concentrations are used as a potential marker for systemic inflammation.
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Affiliation(s)
- Joseph J Wakshlag
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University Ithaca, NY 14853, USA.
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Wakshlag J, Kraus M, Gelzer A, Downey R, Vacchani P. The Influence of High-Intensity Moderate Duration Exercise on Cardiac Troponin I and C-Reactive Protein in Sled Dogs. J Vet Intern Med 2010; 24:1388-92. [DOI: 10.1111/j.1939-1676.2010.0594.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Klenner S, Bauer N, Moritz A. Evaluation of three automated human immunoturbidimetric assays for the detection of C-reactive protein in dogs. J Vet Diagn Invest 2010; 22:544-52. [PMID: 20622224 DOI: 10.1177/104063871002200408] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
C-reactive protein (CRP) is a major, acute-phase protein in dogs; however, there is a need for automated assays to ensure in-time patient monitoring. Three automated immunoturbidimetric assays (Randox, Thermo, and Wako) developed for human beings were evaluated for their ability to detect canine CRP, including method validation, evaluation of diagnostic use, and establishment of exploratory reference intervals. Sera from 36 healthy dogs and 82 diseased dogs were included for method comparison with the enzyme-linked immunosorbent assay (ELISA; Tridelta) serving as the reference method. A nonparametric estimate of the 1-sided 95% reference interval was established (n = 36). Precision study revealed good intra-assay coefficients of variation (CVs) of 1-10%, 0-9%, and 2-13% for the Randox, Thermo, and Wako assays, respectively. Interassay CVs were 18%, 24%, and 19% respectively. Because of a low linear range, the Thermo test was considered unsuitable for use with canine specimens. No significant differences were present between the results obtained with the Randox and Wako assays with CRP concentrations less than 15 mg/l; however, median CRP results differed significantly between the Thermo test and the ELISA (P = 0.03). Bland-Altman analysis detected a proportional bias of 0.28, -0.59, and 0.61 mg/l for the Randox, Thermo, and Wako assays, respectively. For all tests, median CRP values were significantly different between healthy dogs and dogs with neoplasia. The upper limit of the reference intervals were 8.2 and 9.9 mg/l for the Randox and Wako assays, respectively. In contrast to the Thermo test, the Randox and Wako assays were suitable for detection of abnormally high canine CRP concentrations; however, improvement of assay precision and evaluation of accuracy are warranted before their clinical use with canine specimens.
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Affiliation(s)
- Stefanie Klenner
- Department of Veterinary Clinical Sciences, Clinical Pathology, and Clinical Pathophysiology, Justus-Liebig-University, Frankfurterstrasse 126, 35392 Giessen, Germany.
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Merlo A, Rezende BCG, Franchini ML, Simões DMN, Lucas SRR. Serum C-reactive protein concentrations in dogs with multicentric lymphoma undergoing chemotherapy. J Am Vet Med Assoc 2007; 230:522-6. [PMID: 17302548 DOI: 10.2460/javma.230.4.522] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine whether serum C-reactive protein (CRP) concentration is high in dogs with multicentric lymphoma, whether CRP concentration changes in response to chemotherapy, and whether CRP concentration can be used as a marker for relapse in dogs with multicentric lymphoma. DESIGN Cohort study. ANIMALS 20 dogs with multicentric lymphoma and 8 healthy control dogs undergoing chemotherapy with cyclophosphamide, vincristine, and prednisone (CVP) or with vincristine, cyclophosphamide, methotrexate, and L-asparaginase (VCMA) and 20 other healthy dogs. PROCEDURES Serum CRP concentration was measured weekly during the first month of chemotherapy and then at 3-week intervals until relapse in dogs with multicentric lymphoma, weekly for 16 weeks in healthy dogs undergoing chemotherapy, and once in the healthy dogs not undergoing chemotherapy. RESULTS For both groups of dogs with lymphoma, mean serum CRP concentration during week 1 (prior to treatment) was significantly higher than mean concentrations following induction of chemotherapy and at the time of relapse. Mean serum CRP concentration in the healthy dogs undergoing chemotherapy was not significantly different at any time from mean concentration for the healthy dogs not undergoing chemotherapy. No significant differences were observed between dogs treated with CVP and dogs treated with VCMA. CONCLUSIONS AND CLINICAL RELEVANCE Results suggest that serum CRP concentration is high in dogs with multicentric lymphoma but that serum CRP concentration is not a useful marker for relapse and that chemotherapy itself does not affect serum CRP concentration.
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Affiliation(s)
- Alexandre Merlo
- School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
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Watanabe M, Oikawa T, Hiraoka H, Kaneko N, Itamoto K, Mizuno T, Okuda M, Inokuma H. Experimental inoculation of beagle dogs with Ehrlichia species detected from Ixodes ovatus. Vet Parasitol 2006; 136:147-54. [PMID: 16309840 DOI: 10.1016/j.vetpar.2005.10.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2005] [Revised: 10/17/2005] [Accepted: 10/17/2005] [Indexed: 11/16/2022]
Abstract
Three beagle dogs were inoculated with mice spleen/liver homogenate infected with Ehrlichia species detected from Ixodes ovatus (EIO) and one dog was used as a control. All three infected dogs did not show clinical signs of disease except for mild pyrexia throughout the 41-day study period. Splenomegaly was observed from Day 7 post-inoculation (p.i.) in two of the dogs. Hematological and biochemical abnormalities included mild thrombocytopenia, hypoproteinaemia, hypoalbuminaemia and increased C-reactive protein values. One of the dogs' splenic aspirate sample was PCR-positive for Ehrlichia Day 7 p.i. and another dogs' blood and bone marrow aspirate sample was PCR-positive Day 41 p.i. Sequence analysis of the PCR products showed 100% homology with the 16SrRNA partial gene sequence of Ehrlichia sp. HF565. Antibody titers to EIO were observed in all three experimentally infected dogs starting from the first week p.i. and cross-reactivity with Ehrlichia canis was detectable in one of the dogs starting Day 7 p.i. These data suggest that infection of dogs with EIO is possible, though is probably of low pathogenic importance. Cross-reactivity of EIO infected dog serum with E. canis raises the likelihood of false E. canis seropositive dogs.
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Affiliation(s)
- Malaika Watanabe
- Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
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