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Table 1 Results of conventional synovial fluid analysis following intra-articular injection of 0.5 ng lipopolysaccharide

From: Inflammatory mediators and cartilage biomarkers in synovial fluid after a single inflammatory insult: a longitudinal experimental study

  Time after lipopolysaccharide
  0 hours 8 hours 24 hours 168 hours
Total protein (g/dl) 1.27 ± 0.18 4.70* ± 0.18 4.80* ± 0.14 1.53 ± 0.18
Leucocytes (x109 cells/l) 0.25 ± 0.085 215.4* ± 15.9 64.6*, ± 6.7 0.72 ± 0.38
Neutrophils (%) N/A 98.8* ± 0.31 80.0*, ± 3.4 N/A
  1. Comparison of synovial fluid total protein, white blood cell counts and differentiation over time after induction of joint inflammation. Data correspond to the mean ± standard error of the mean (n = 6 horses). N/A, no differentiation performed given low white blood cell counts. *Significant difference from PIH 0 and 168 (P < 0.001). Significant difference from PIH 8 (P < 0.001).