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Year : 2016  |  Volume : 143  |  Issue : 2  |  Page : 220-226

Perioperative time course of matrix metalloproteinase-9 (MMP-9), its tissue inhibitor TIMP-1 & S100B protein in carotid surgery

1 Department of Anesthesiology and Intensive Therapy, University of Pécs, Hungary
2 Medical School of Pécs, University of Pécs, Hungary
3 Department of Surgical Research and Techniques, University of Pécs, Hungary
4 Department of Vascular Surgery, University of Pécs, Hungary

Correspondence Address:
Diána Mühl
Department of Anesthesiology & Intensive Therapy, University of Pécs
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-5916.180212

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Background & objectives: Ischaemic stroke is a life burdening disease for which carotid endarterectomy (CEA) is considered a gold standard intervention. Pro-inflammatory markers like matrix metalloproteinases (MMPs) and their inhibitors (TIMPs) and S-100 Beta (S100B) may have a role in the early inflammation and cognitive decline following CEA. This study was aimed to describe the perioperative time courses and correlations between of MMP-9, TIMP-1 and S100B following CEA. Methods: Fifty four patients scheduled for CEA were enrolled. Blood samples were collected at four time points, T 1 : preoperative, T 2 : 60 min after cross-clamp release, T 3 : first postoperative morning, T 4 : third postoperative morning. Twenty atherosclerotic patients were included as controls. Plasma MMP-9, TIMP-1 and S100B levels were estimated by ELISA. Results: TIMP-1 was decreased significantly in the CEA group (P<0.01). Plasma MMP-9 was elevated and remained elevated from T 1-4 in the CEA group (P<0.05) with a marked elevation in T 3 compared to T 1 (P<0.05). MMP-9/TIMP-1 was elevated in the CEA group and increased further by T 2 and T 3 (P<0.05). S100B was elevated on T 2 and decreased on T 3-4 compared to T 1 . Interpretation & conclusions: Our study provides information on the dynamic changes of MMP-9-TIMP-1 system and S100B in the perioperative period. Preoperative reduction of TIMP-1 might be predictive for shunt requirement but future studies are required for verification.

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