Electrical conductivity on three salts, FDPMg, FDPNa and MgSO4 dissolved in water and plasma, was measured. The results indicated that three salts in water belonged to strong electrolyte and their conductivity varied ...Electrical conductivity on three salts, FDPMg, FDPNa and MgSO4 dissolved in water and plasma, was measured. The results indicated that three salts in water belonged to strong electrolyte and their conductivity varied very much. The limiting molar conductivity of FDPMg, FDPNa and MgSO4 at 25℃ calculated by linear fit was 0.02007, 0.03205, 0.02633 S·m2·mol-1,respectively. When concentration was 1×10-3 mol·dm-3(equal to blood concentration), the molecule proportion of the three salts in water was: FDPNa (8.6%) <MgSO4(12.9%)<FDPMg(18.9%); the molecule proportion of the three salts in plasma has not been confirmed at present.展开更多
Objective: To study the effects of sodium magnesiusm fructose diphosphate(FDPM) on brain damage of rats after ischemia-reperfusion. Methods: Rats were subjected to cerebral ischemia-reperfusion induced by inserting a ...Objective: To study the effects of sodium magnesiusm fructose diphosphate(FDPM) on brain damage of rats after ischemia-reperfusion. Methods: Rats were subjected to cerebral ischemia-reperfusion induced by inserting a nylon thread into internal carotid artery to block the origin of middle cerebral artery and removing the thread later. FDPM (400 mg·kg -1), fructose-1,6-diphosphate (FDP, 400 mg·kg -1)and magnesium sulfate (MgSO 4, 30 mg·kg -1) were administrated 10 min after the onset of ischemia. Neurological scale, brain infarct area, Malondialdehyde(MDA) content and histopathological changes of brain tissue were studied. Results: FDPM decreased neurological scale, diminished brain infarct area, reduced MDA content and relieved histopathological change of rat brain tissue subjected to ischemia-reperfusion. These effects were more powerful than that of FDP or MgSO 4. Conclusions: It is suggested that FDPM markedly prevented rats against brain damage after cerebral ischemia-reperfusion, and its effect was better than that of FDP or MgSO 4.展开更多
文摘Electrical conductivity on three salts, FDPMg, FDPNa and MgSO4 dissolved in water and plasma, was measured. The results indicated that three salts in water belonged to strong electrolyte and their conductivity varied very much. The limiting molar conductivity of FDPMg, FDPNa and MgSO4 at 25℃ calculated by linear fit was 0.02007, 0.03205, 0.02633 S·m2·mol-1,respectively. When concentration was 1×10-3 mol·dm-3(equal to blood concentration), the molecule proportion of the three salts in water was: FDPNa (8.6%) <MgSO4(12.9%)<FDPMg(18.9%); the molecule proportion of the three salts in plasma has not been confirmed at present.
文摘Objective: To study the effects of sodium magnesiusm fructose diphosphate(FDPM) on brain damage of rats after ischemia-reperfusion. Methods: Rats were subjected to cerebral ischemia-reperfusion induced by inserting a nylon thread into internal carotid artery to block the origin of middle cerebral artery and removing the thread later. FDPM (400 mg·kg -1), fructose-1,6-diphosphate (FDP, 400 mg·kg -1)and magnesium sulfate (MgSO 4, 30 mg·kg -1) were administrated 10 min after the onset of ischemia. Neurological scale, brain infarct area, Malondialdehyde(MDA) content and histopathological changes of brain tissue were studied. Results: FDPM decreased neurological scale, diminished brain infarct area, reduced MDA content and relieved histopathological change of rat brain tissue subjected to ischemia-reperfusion. These effects were more powerful than that of FDP or MgSO 4. Conclusions: It is suggested that FDPM markedly prevented rats against brain damage after cerebral ischemia-reperfusion, and its effect was better than that of FDP or MgSO 4.