MMP-9 and MMP-2 regulation in patients undergoing non-oncological and non-vascular elective surgery independent of the use of propofol or sevoflurane.

ABSTRACT

BACKGROUND: There is debate regarding whether inhaled sevoflurane or intravenous propofol used during anesthesia achieves the best outcome. Propofol has been shown to affect expression of matrix metalloproteinases (MMPs). MMPs are enzymes that play a role in extracellular matrix remodeling, with activity balance disturbances during surgery. The goal of this study was to compare MMP-2/9 concentrations, activity, and tissue inhibitors of metalloproteinases (TIMPs) 1/2 concentrations in blood of who had undergone 2 types of anesthesia based on volatile sevoflurane and intravenous propofol during non-oncological, non-vascular surgery. METHODS: 39 patients were enrolled into analysis, 20 anesthetized with total intravenous anesthesia with propofol (P), 19 with volatile induction/maintenance of anesthesia with sevoflurane (S). Plasma samples collected before and 24 h after surgery were analyzed for MMP-2/9, and TIMP-1/2 concentrations using ELISAs. Additionally, MMP-2/9 activities were assessed by gelatin zymography. RESULTS: Study revealed increased MMP-9 concentration (ELISA) (Pp = 0.011; Sp = 0.001) and activity (zymography) (Pp = 0.004; Sp = 0.008) in both groups 24 h after surgery. We noticed decreased (both groups) MMP-2 concentration (Pp = 0.044; Sp = 0.027) with MMP-2 activity increase (Pp = 0.002; Sp = 0.006) 24 h after surgery. We observed decreased TIMP-1 plasma concentrations (Pp = 0.002; Sp = 0.000) 24 h after procedures, while TIMP-2 plasma levels remain unchanged (Pp = 0.097; Sp = 0.172). There were no differences between concentration and activity of MMPs and TIMPs in regard to anesthetic used. Meperidine administration correlated with lower MMP-9 activity (R=-0.430; p = 0.006). CONCLUSIONS: Concluding, neither sevoflurane nor propofol used as anesthetics modulate MMP-2 and MMP-9 concentrations and activities during non-oncological, non-vascular elective surgery. Meperidine seems to decrease MMP-9 activity.