Document Detail

Serum Biomarkers of Clinical and Cytologic Response in Dogs with Idiopathic Immune-Mediated Polyarthropathy.
MedLine Citation:
PMID:  24698600     Owner:  NLM     Status:  Publisher    
BACKGROUND: Immune-mediated polyarthopathy (IMPA) is common in dogs, and is monitored by serial arthrocenteses.
HYPOTHESIS/OBJECTIVES: Plasma C-reactive protein (CRP), interleukin-6 (IL-6), and CXCL8 (interleukin-8) would serve as noninvasive markers of joint inflammation in IMPA.
ANIMALS: Nine client-owned dogs with idiopathic IMPA; 6 healthy controls.
METHODS: Prospective study. Plasma CRP, IL-6, and CXCL8 were measured by ELISA at baseline, 2, and 4 weeks during treatment with prednisone at 50 mg/m(2) /day. Arthrocenteses, the canine brief pain inventory (CBPI), and accelerometry collars were used to assess joint inflammation, lameness, and mobility at all 3 time points.
RESULTS: C-reactive protein concentrations were higher in IMPA dogs (median 91.1 μg/mL, range 76.7-195.0) compared with controls (median <6.3 μg/mL, <6.3-13.7; P = .0035), and were significantly lower at week 2 (10.6 μg/mL, <6.3-48.8) and week 4 (<6.3 μg/mL, <6.3-24.4; P < .001). C-reactive protein was correlated with median CBPI scores (r = 0.68; P = .0004), joint cellularity (r = 0.49, P = .011), and mobility by accelerometry (r = -0.42, P = .048). Plasma IL-6 concentrations were also higher in IMPA dogs (median 45.9 pg/mL), compared with controls (median <15.7 pg/mL; P = .0008). IL-6 was lower in IMPA dogs by week 4 (<15.7 pg/mL; P = .0099), and was modestly correlated with CBPI scores (r = 0.47, P = .023). CXCL8 did not differ significantly between IMPA and healthy dogs.
CONCLUSIONS: Plasma CRP and IL-6 might be useful surrogate markers of synovial inflammation and disease activity in dogs with IMPA.
J D Foster; S Sample; R Kohler; K Watson; P Muir; L A Trepanier
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-4-3
Journal Detail:
Title:  Journal of veterinary internal medicine / American College of Veterinary Internal Medicine     Volume:  -     ISSN:  1939-1676     ISO Abbreviation:  J. Vet. Intern. Med.     Publication Date:  2014 Apr 
Date Detail:
Created Date:  2014-4-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8708660     Medline TA:  J Vet Intern Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 by the American College of Veterinary Internal Medicine.
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