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Table 4 Plasma MMP-9, TIMP-1 and MMP-9/TIMP-1 levels in the study groups

From: Comparison of the perioperative time courses of matrix metalloproteinase-9 (MMP-9) and its inhibitor (TIMP-1) during carotid artery stenting (CAS) and carotid endarterectomy (CEA)

  Group T1 T2 T3 T4
MMP-9 (ng/ml) CEA 290.9 ± 112.1 284.7 ± 247.5 488.6 ± 249.8*# 382.9 ± 285.4
CAS 259.8 ± 244.9 239.1 ± 221.3 180.9 ± 159.7
TIMP-1 (ng/ml) CEA 117.3 ± 43.2 81.7 ± 73.9* 88.5 ± 41.6 117.2 ± 52.3
CAS 93.5 ± 30.9 61.7 ± 28.8* 70.7 ± 30.2
MMP-9/TIMP1 CEA 2.73 ± 1.37 4.39 ± 2.69 6.41 ± 3.86*# 3.40 ± 2.50
CAS 2.78 ± 1.88 4.33 ± 3.05 2.26 ± 1.79
  1. Data are presented as the mean ± standard error of mean
  2. CEA carotid endarterectomy control group, CAS carotid angioplasty and stenting group, T1 preoperative values, T2 60 min after cross-clamp release/stent insertion, T3 postoperative day 1, T4 postoperative day 3
  3. * p < 0.05 compared to T1
  4. # p < 0.05 compared to CAS