Key result
r-hirudin cuts post-ischemic leukocyte emigration efficiency by ~90% vs control, unlike UFH or LMWH.
Why the study?
Activation of the coagulation cascade during myocardial ischemia and reperfusion may contribute to the post-ischemic inflammatory response via thrombin generation, but the effects of different anticoagulants on leukocyte adhesion and emigration are unclear.
Do anticoagulants (UFH, LMWH, r-hirudin) reduce leukocyte adhesion and emigration in a rat model of ischemia/reperfusion?
Do anticoagulants (UFH, LMWH, r-hirudin) reduce leukocyte adhesion and emigration in a rat model of ischemia/reperfusion?
Absolute Event Rate: 0.12% vs 1.21%
In a rat model of ischemia/reperfusion, the direct thrombin inhibitor r-hirudin uniquely attenuated leukocyte emigration compared to UFH and LMWH, suggesting a specific anti-inflammatory role.
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Anticoagulants may attenuate post-ischemic leukocyte adhesion experimentally; clinical relevance in myocardial reperfusion injury remains untested.
Habazettl et al. (2004) studied Ischemia and reperfusion. Unfractionated heparin (UFH), low molecular weight heparin (LMWH), and r-hirudin vs. Saline (control) was evaluated on Emigration efficiency of adherent leukocytes. While UFH, LMWH, and r-hirudin all attenuated post-ischemic leukocyte adhesion, only r-hirudin decreased the emigration efficiency of adherent leukocytes (0.12 vs control 1.21).
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