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Table 4 MMP-9, COX-2, and TIMP-1 expression (in arbitrary units of band densitometry, normalized by β-actin expression), across the groups

From: Assessment of MMP-9, TIMP-1, and COX-2 in normal tissue and in advanced symptomatic and asymptomatic carotid plaques

Variable Group Mean Median SD p value
MMP-9 GI 127 147 44.3  
  GII 198.9 201.3 11.5  
  Control 182.1 181 25.2 <0.001
COX-2 GI 2.7 2.3 1.6  
  GII 3.3 2.7 1.8  
  Control 2.9 2.1 2.1 0.739
TIMP-1 GI 1.2 0 1.8  
  GII 2.1 2.1 1.8  
  Control 3.6 2.4 2.7 0.039