It has been proposed that a major portion of ischemia-reperfusion injury is due to the generation of active oxygen radicalst. It has been demonstrated that free radical scavengers can protect the myocardium injured by...It has been proposed that a major portion of ischemia-reperfusion injury is due to the generation of active oxygen radicalst. It has been demonstrated that free radical scavengers can protect the myocardium injured by reperfusion. But all Of them are indirect evidence for the generation of active oxygen radicals during ischemia and reperfusion. Electron spin resonance (ESR) is the most effective tecnique for the direct measurement of free radicals. But only a few reports have been found in literature so far. In this work, the ESR spectrum of the ischemic reperfusion of intact rabbit myocardium was directly measured at low temperature.展开更多
THE bioactivity study of C<sub>60</sub> and its relative derivatives is of considerable importance.BecauseC<sub>60</sub> itself is a non-polar molecule and very difficult to dissolve in common ...THE bioactivity study of C<sub>60</sub> and its relative derivatives is of considerable importance.BecauseC<sub>60</sub> itself is a non-polar molecule and very difficult to dissolve in common polar solvents,its ap-plication in biochemistry field is greatly impeded.Successful preparation of some water-solubleC<sub>60</sub> derivatives will be helpful.Friedman found that a water-soluble C<sub>60</sub> derivative,[HOCO-展开更多
文摘It has been proposed that a major portion of ischemia-reperfusion injury is due to the generation of active oxygen radicalst. It has been demonstrated that free radical scavengers can protect the myocardium injured by reperfusion. But all Of them are indirect evidence for the generation of active oxygen radicals during ischemia and reperfusion. Electron spin resonance (ESR) is the most effective tecnique for the direct measurement of free radicals. But only a few reports have been found in literature so far. In this work, the ESR spectrum of the ischemic reperfusion of intact rabbit myocardium was directly measured at low temperature.
文摘THE bioactivity study of C<sub>60</sub> and its relative derivatives is of considerable importance.BecauseC<sub>60</sub> itself is a non-polar molecule and very difficult to dissolve in common polar solvents,its ap-plication in biochemistry field is greatly impeded.Successful preparation of some water-solubleC<sub>60</sub> derivatives will be helpful.Friedman found that a water-soluble C<sub>60</sub> derivative,[HOCO-
