OBJECTIVE To investigate the protective effect and mechanisms of luteolin-7-O-β-dglucuronide(LGU) on oxygen glucose deprivation(OGD)-induced H9C2 cardiomyocytes injury.METH.ODS The protective effect of LGU on OGD-ind...OBJECTIVE To investigate the protective effect and mechanisms of luteolin-7-O-β-dglucuronide(LGU) on oxygen glucose deprivation(OGD)-induced H9C2 cardiomyocytes injury.METH.ODS The protective effect of LGU on OGD-induced H9C2 cardiomyocytes death were investigated by MTT assay.The microfilament change of H9C2 cardiomyocytes was detected by phalloidin staining and the lactate dehydrogenase(LDH) leakage rate was also detected by LDH kit.In order to explore the possible mechanisms of LGU,ATP content,intracellular Ca^(2+) fluorescent intensity and concentra.tion,mitochondrial membrane potential(MMP)and the expressions of apoptosis-related proteins were detected by ATP kit,CLSM(Fluo-3/AM probe),Ca^(2+) kit,CLSM(JC-1 probe) and western blotting meth.od,respectively.RESULTS The inhibition of H9C2 cardiomyocyte survival rate inducedby OGD was improvedby pretreated with LGU in a concentrationdependent manner.The microfilaments injury as well as the increase of LDH leakage rate were also improvedby pretreated with LGU.The ATP content was significantly decreased,intracellular Ca^(2+) fluorescent intensity and concentration were significantly increased and the MMP was significantly decreased 4 hafter OGD.LGU significantly reversed the de.crease of intracellular ATP content,the increase of Ca^(2+) fluorescent intensity and concentration and the decrease of MMP.The release of cytochrome C,the expressionsof caspase-9 and caspase-3 in H9C2 cardiomyocytes were increased 16 h after OGD.LGUsignificantly inhibited the changes of these apop.tosis-related proteins.CONCLUSION LGU has a significant protective effect against OGD-induced H9C2 cardiomyocytes injury through inhibiting calcium overload,increasing ATP content,improving mi.tochondrial function and inhibiting apoptosis.展开更多
Objective: The present study was designed to evaluate the effect a commonly prescribed Non Steroidal Anti Inflammatory Drug(NSAID) i.e.aspirin on brush border membrane in terms of changes in the intestinal transport l...Objective: The present study was designed to evaluate the effect a commonly prescribed Non Steroidal Anti Inflammatory Drug(NSAID) i.e.aspirin on brush border membrane in terms of changes in the intestinal transport level of glucose which is monosaccharide with absolute requirement in the body and hence its absorption is directly proportional on the morphology of the intestinal mucosa.Method: Albino rats(Rattus Norvegicus) were divided into two different groups,Group I(Control),Group II(aspirin-treated,50 mg aspirin/kg of body weight).The treatment was continued for 28 days.On the 29th day after overnight fasting,intestine was removed from animals of both groups.Changes in transport of glucose-D in intestine were studied.Result: The results indicated a significant decrease in the transport of glucose-D in aspirin treated group as compared to the control group.Conclusion: Cautious use of NSAID is recommended in commonly observed symptom such as headache and to those patients who are given as a prophylaxis for thrombosis.展开更多
The method has been put forward to analyze the content of D-ribose obtained from glucose zymotic fluid. D-ribose was determined by HPLC, on a Sugar PakⅠcolumn, by using a refractive index detector and a mobile phase ...The method has been put forward to analyze the content of D-ribose obtained from glucose zymotic fluid. D-ribose was determined by HPLC, on a Sugar PakⅠcolumn, by using a refractive index detector and a mobile phase of pure water. We have also studied the separation conditions of sugars. It has many advantages, such as rapid analysis, high sensitivity and high precision and good reproducibility. The recovery of D-ribose were 95.5%—104%, RSD were less than 1 5%, the detection limit of D-Ribose was 50 ng.展开更多
基金supported by Young and Middle-aged Teacher Career Development Support Plan of Shenyang Pharmaceutical University(ZQN2016002) Science and Technology Funds from Department of Education of Liaoning Province(2016101633L3)
文摘OBJECTIVE To investigate the protective effect and mechanisms of luteolin-7-O-β-dglucuronide(LGU) on oxygen glucose deprivation(OGD)-induced H9C2 cardiomyocytes injury.METH.ODS The protective effect of LGU on OGD-induced H9C2 cardiomyocytes death were investigated by MTT assay.The microfilament change of H9C2 cardiomyocytes was detected by phalloidin staining and the lactate dehydrogenase(LDH) leakage rate was also detected by LDH kit.In order to explore the possible mechanisms of LGU,ATP content,intracellular Ca^(2+) fluorescent intensity and concentra.tion,mitochondrial membrane potential(MMP)and the expressions of apoptosis-related proteins were detected by ATP kit,CLSM(Fluo-3/AM probe),Ca^(2+) kit,CLSM(JC-1 probe) and western blotting meth.od,respectively.RESULTS The inhibition of H9C2 cardiomyocyte survival rate inducedby OGD was improvedby pretreated with LGU in a concentrationdependent manner.The microfilaments injury as well as the increase of LDH leakage rate were also improvedby pretreated with LGU.The ATP content was significantly decreased,intracellular Ca^(2+) fluorescent intensity and concentration were significantly increased and the MMP was significantly decreased 4 hafter OGD.LGU significantly reversed the de.crease of intracellular ATP content,the increase of Ca^(2+) fluorescent intensity and concentration and the decrease of MMP.The release of cytochrome C,the expressionsof caspase-9 and caspase-3 in H9C2 cardiomyocytes were increased 16 h after OGD.LGUsignificantly inhibited the changes of these apop.tosis-related proteins.CONCLUSION LGU has a significant protective effect against OGD-induced H9C2 cardiomyocytes injury through inhibiting calcium overload,increasing ATP content,improving mi.tochondrial function and inhibiting apoptosis.
文摘Objective: The present study was designed to evaluate the effect a commonly prescribed Non Steroidal Anti Inflammatory Drug(NSAID) i.e.aspirin on brush border membrane in terms of changes in the intestinal transport level of glucose which is monosaccharide with absolute requirement in the body and hence its absorption is directly proportional on the morphology of the intestinal mucosa.Method: Albino rats(Rattus Norvegicus) were divided into two different groups,Group I(Control),Group II(aspirin-treated,50 mg aspirin/kg of body weight).The treatment was continued for 28 days.On the 29th day after overnight fasting,intestine was removed from animals of both groups.Changes in transport of glucose-D in intestine were studied.Result: The results indicated a significant decrease in the transport of glucose-D in aspirin treated group as compared to the control group.Conclusion: Cautious use of NSAID is recommended in commonly observed symptom such as headache and to those patients who are given as a prophylaxis for thrombosis.
文摘The method has been put forward to analyze the content of D-ribose obtained from glucose zymotic fluid. D-ribose was determined by HPLC, on a Sugar PakⅠcolumn, by using a refractive index detector and a mobile phase of pure water. We have also studied the separation conditions of sugars. It has many advantages, such as rapid analysis, high sensitivity and high precision and good reproducibility. The recovery of D-ribose were 95.5%—104%, RSD were less than 1 5%, the detection limit of D-Ribose was 50 ng.
