期刊
WORLD JOURNAL OF GASTROENTEROLOGY
卷 17, 期 24, 页码 2879-2889出版社
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.v17.i24.2879
关键词
Cold ischemia reperfusion injury; Endothelial nitric oxide synthase; Nitric oxide; Liver graft preservation; Ischemic preconditioning; Liver transplantation
Organ preservation and ischemia reperfusion injury associated with liver transplantation play an important role in the induction of graft injury. One of the earliest events associated with the reperfusion injury is endothelial cell dysfunction. It is generally accepted that endothelial nitric oxide synthase (e-NOS) is cell-protective by mediating vasodilatation, whereas inducible nitric oxide synthase mediates liver graft injury after transplantation. We conducted a critical review of the literature evaluating the potential applications of regulating and promoting e-NOS activity in liver preservation and transplantation, showing the most current evidence to support the concept that enhanced bioavailability of NO derived from e-NOS is detrimental to ameliorate graft liver preservation, as well as preventing subsequent graft reperfusion injury. This review deals mainly with the beneficial effects of promoting endogenous pathways for NO generation, via e-NOS inducer drugs in cold preservation solution, surgical strategies such as ischemic preconditioning, and alternative exogenous pathways that focus on the enrichment of cold storage liquid with NO donors. Finally, we also provide a basic bench-to-bed side summary of the liver physiology and cell signalling mechanisms that account for explaining the e-NOS protective effects in liver preservation and transplantation. (C) 2011 Baishideng. All rights reserved.
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