Abstract：
BACKGROUND:These experiments were designed to quantitatively compare the patterns of tissue thrombosis, cytokine response, and tissue viability in a murine model of partial (PI) versus complete hindlimb ischemia (CI), alone or with reperfusion (RE). METHODS:The control tension tourniquet was used to establish either PI or CI in the unilateral mouse hindlimb for 3 hours followed by 0, 4, and 24 hours of RE. Muscle viability, local neutrophil chemoattractant protein, interleukin 6, interleukin 1beta, D-dimer, thrombin-antithrombin III complex, plasminogen activator inhibitor 1, and tissue plasminogen activator levels were measured in protein extracts for each experimental interval. RESULTS:Tissue viability after CI and 24 hours of RE was significantly less than tissue subjected to PI and 24 hours of RE (96% +/- 16 PI, 64% +/- 4 CI, P=.02). The local cytokine response was initially elevated in the PI group but dissipated by 24RE. In contrast, the local cytokine response to CI alone was small but greatly increased by 24RE. The thrombotic response to PI was increased throughout ischemia/reperfusion. While thrombosis during CI alone was negligible, reperfusion led to a significant thrombotic response. CONCLUSIONS:Biochemical markers for tissue viability, thrombosis, and cytokine-mediated inflammation differ significantly in mice subjected to moderate and severe hindlimb ischemia/reperfusion. These biochemical markers may facilitate stratification of patients in clinical trials for treatment of ischemia/reperfusion injury and contribute to interpretation of their outcomes.
journal_name
Surgeryjournal_title
Surgeryauthors
Conrad MF,Stone DH,Albadawi H,Hua HT,Entabi F,Stoner MC,Watkins MTdoi
10.1016/j.surg.2005.06.005subject
Has Abstractpub_date
2005-08-01 00:00:00pages
375-81issue
2eissn
0039-6060issn
1532-7361pii
S0039-6060(05)00275-8journal_volume
138pub_type
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