Journal
PHARMACOLOGY & THERAPEUTICS
Volume 117, Issue 2, Pages 280-295Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pharmthera.2007.09.008
Keywords
salvia miltiorrhiza root extract; ischemia and reperfusion; organ injury; antioxidation; adhesion molecules; mast cell degranulation; platelet aggregation
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Ischemia and reperfusion (I/R) exerts multiple insults in microcirculation, frequently accompanied by endothelial cell injury, enhanced adhesion of leukocytes, macromolecular efflux, production of oxygen free radicals, and mast cell degranulation. Since the microcirculatory disturbance results in injury of organ involved, protection of organ after I/R is of great importance in clinic. Salvia miltiorrhiza root has long been used in Asian countries for clinical treatment of various microcirculatory disturbance-related diseases. This herbal drug contains many active water-soluble compounds, including protocatechuic aldehyde (PA1), 3,4-dihydroxyphenyl lactic acid (DLA) and salvianolic acid B (SaiB). These compounds, as well as water-soluble fraction of S. miltiorrhiza root extract (SMRE), have an ability to scavenge peroxides and are able to inhibit the expression of adhesion molecules in vascular endothelium and leukocytes. Moreover, lipophilic compounds of SMRE also prevent the development of vascular damage; NADPH oxidase and platelet aggregation are inhibited by tanshinone IIA and tanshinone 1113, respectively, and the mast cell degranulation is blunted by cryptotanshinone and 15,16-dihydrotanshinone I. Thus, the water-soluble and lipophilic compounds of SMRE appear to improve the I/R-induced vascular damage multifactorially and synergically. This review will summarize the ameliorating effect of compounds derived from SMRE on microcirculatory disturbance and target organ injury after I/R and will provide a new perspective on remedy with multiple drugs. (C) 2007 Elsevier Inc. All rights reserved.
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