高糖危象患者血清瘦素和氧化应激的关系

Objective To investigate the relationship between the levels of serum leptin and oxidative stress in patients with hyperglycemia crisis. Methods A total of 96 patients with diabetic ketoaeidosis (DKA) and nonketotic hyperglycemia (NKH) were treated on a low-dose insulin protocol using intravenous infusion of insulin with the established rate of 0.1U·kg-1·h-1,with the patients on intravenous fluids and receiving nutrition by mouth and vein. The levels of serum leptin, 8-iso-prostaglandin F2α (8-iso-PGF2α, the activities of superoxide dismutase (SOD), total antioxidant capacity (TAC) and the contents of malondialdehyde (MDA) in 96 patients with hyperglycemia crisis on admission and after insulin therapy with resolution of hyperglycemia and ketoacidosis (72 hours) were measured. Another 35 healthy individuals served as normal control. Results The activities of SOD, TAC and the levels of leptin before treatment were lower in patients with hyperglycemia crisis than in normal controls, and the levels of MDA and 8-iso-PGF2a were more markedly elevated than those in normal controls (all P<0. 05). The activities of SOD, TAC and the levels of leptin in patients after treatment were significantly higher than those in patients before treatment, and the levels of MDA and 8-iso-PGF2a. were significantly lower than those in patients on admission (all P<0. 05). There was significant positive correlation between leptin and MDA in patients before treatment (r=0. 38, P<0. 05), and the level of leptin was negatively correlated with MDA and 8-iso-PGF2a in patients after treatment (r1 = - 0. 35, r2= - 0. 37, both P < 0. 05). In stepwise regression analysis, MDA and 8-iso-PGF2α showed a significant association with leptin. Conclusion The levels of leptin are significantly lowered in patients with hyperglycemia crisis. Oxidative stress may participate in determining the leptin level in hyperglycemia crisis.     

高糖危象患者血清瘦素和氧化应激的关系

Objective To investigate the relationship between the levels of serum leptin and oxidative stress in patients with hyperglycemia crisis. Methods A total of 96 patients with diabetic ketoaeidosis (DKA) and nonketotic hyperglycemia (NKH) were treated on a low-dose insulin protocol using intravenous infusion of insulin with the established rate of 0.1U·kg-1·h-1,with the patients on intravenous fluids and receiving nutrition by mouth and vein. The levels of serum leptin, 8-iso-prostaglandin F2α (8-iso-PGF2α, the activities of superoxide dismutase (SOD), total antioxidant capacity (TAC) and the contents of malondialdehyde (MDA) in 96 patients with hyperglycemia crisis on admission and after insulin therapy with resolution of hyperglycemia and ketoacidosis (72 hours) were measured. Another 35 healthy individuals served as normal control. Results The activities of SOD, TAC and the levels of leptin before treatment were lower in patients with hyperglycemia crisis than in normal controls, and the levels of MDA and 8-iso-PGF2a were more markedly elevated than those in normal controls (all P<0. 05). The activities of SOD, TAC and the levels of leptin in patients after treatment were significantly higher than those in patients before treatment, and the levels of MDA and 8-iso-PGF2a. were significantly lower than those in patients on admission (all P<0. 05). There was significant positive correlation between leptin and MDA in patients before treatment (r=0. 38, P<0. 05), and the level of leptin was negatively correlated with MDA and 8-iso-PGF2a in patients after treatment (r1 = - 0. 35, r2= - 0. 37, both P < 0. 05). In stepwise regression analysis, MDA and 8-iso-PGF2α showed a significant association with leptin. Conclusion The levels of leptin are significantly lowered in patients with hyperglycemia crisis. Oxidative stress may participate in determining the leptin level in hyperglycemia crisis.     

高糖危象患者血清瘦素和氧化应激的关系

Objective To investigate the relationship between the levels of serum leptin and oxidative stress in patients with hyperglycemia crisis. Methods A total of 96 patients with diabetic ketoaeidosis (DKA) and nonketotic hyperglycemia (NKH) were treated on a low-dose insulin protocol using intravenous infusion of insulin with the established rate of 0.1U·kg-1·h-1,with the patients on intravenous fluids and receiving nutrition by mouth and vein. The levels of serum leptin, 8-iso-prostaglandin F2α (8-iso-PGF2α, the activities of superoxide dismutase (SOD), total antioxidant capacity (TAC) and the contents of malondialdehyde (MDA) in 96 patients with hyperglycemia crisis on admission and after insulin therapy with resolution of hyperglycemia and ketoacidosis (72 hours) were measured. Another 35 healthy individuals served as normal control. Results The activities of SOD, TAC and the levels of leptin before treatment were lower in patients with hyperglycemia crisis than in normal controls, and the levels of MDA and 8-iso-PGF2a were more markedly elevated than those in normal controls (all P<0. 05). The activities of SOD, TAC and the levels of leptin in patients after treatment were significantly higher than those in patients before treatment, and the levels of MDA and 8-iso-PGF2a. were significantly lower than those in patients on admission (all P<0. 05). There was significant positive correlation between leptin and MDA in patients before treatment (r=0. 38, P<0. 05), and the level of leptin was negatively correlated with MDA and 8-iso-PGF2a in patients after treatment (r1 = - 0. 35, r2= - 0. 37, both P < 0. 05). In stepwise regression analysis, MDA and 8-iso-PGF2α showed a significant association with leptin. Conclusion The levels of leptin are significantly lowered in patients with hyperglycemia crisis. Oxidative stress may participate in determining the leptin level in hyperglycemia crisis.     

高糖危象患者血清瘦素和氧化应激的关系

Objective To investigate the relationship between the levels of serum leptin and oxidative stress in patients with hyperglycemia crisis. Methods A total of 96 patients with diabetic ketoaeidosis (DKA) and nonketotic hyperglycemia (NKH) were treated on a low-dose insulin protocol using intravenous infusion of insulin with the established rate of 0.1U·kg-1·h-1,with the patients on intravenous fluids and receiving nutrition by mouth and vein. The levels of serum leptin, 8-iso-prostaglandin F2α (8-iso-PGF2α, the activities of superoxide dismutase (SOD), total antioxidant capacity (TAC) and the contents of malondialdehyde (MDA) in 96 patients with hyperglycemia crisis on admission and after insulin therapy with resolution of hyperglycemia and ketoacidosis (72 hours) were measured. Another 35 healthy individuals served as normal control. Results The activities of SOD, TAC and the levels of leptin before treatment were lower in patients with hyperglycemia crisis than in normal controls, and the levels of MDA and 8-iso-PGF2a were more markedly elevated than those in normal controls (all P<0. 05). The activities of SOD, TAC and the levels of leptin in patients after treatment were significantly higher than those in patients before treatment, and the levels of MDA and 8-iso-PGF2a. were significantly lower than those in patients on admission (all P<0. 05). There was significant positive correlation between leptin and MDA in patients before treatment (r=0. 38, P<0. 05), and the level of leptin was negatively correlated with MDA and 8-iso-PGF2a in patients after treatment (r1 = - 0. 35, r2= - 0. 37, both P < 0. 05). In stepwise regression analysis, MDA and 8-iso-PGF2α showed a significant association with leptin. Conclusion The levels of leptin are significantly lowered in patients with hyperglycemia crisis. Oxidative stress may participate in determining the leptin level in hyperglycemia crisis.     

高糖危象患者血清瘦素和氧化应激的关系

Objective To investigate the relationship between the levels of serum leptin and oxidative stress in patients with hyperglycemia crisis. Methods A total of 96 patients with diabetic ketoaeidosis (DKA) and nonketotic hyperglycemia (NKH) were treated on a low-dose insulin protocol using intravenous infusion of insulin with the established rate of 0.1U·kg-1·h-1,with the patients on intravenous fluids and receiving nutrition by mouth and vein. The levels of serum leptin, 8-iso-prostaglandin F2α (8-iso-PGF2α, the activities of superoxide dismutase (SOD), total antioxidant capacity (TAC) and the contents of malondialdehyde (MDA) in 96 patients with hyperglycemia crisis on admission and after insulin therapy with resolution of hyperglycemia and ketoacidosis (72 hours) were measured. Another 35 healthy individuals served as normal control. Results The activities of SOD, TAC and the levels of leptin before treatment were lower in patients with hyperglycemia crisis than in normal controls, and the levels of MDA and 8-iso-PGF2a were more markedly elevated than those in normal controls (all P<0. 05). The activities of SOD, TAC and the levels of leptin in patients after treatment were significantly higher than those in patients before treatment, and the levels of MDA and 8-iso-PGF2a. were significantly lower than those in patients on admission (all P<0. 05). There was significant positive correlation between leptin and MDA in patients before treatment (r=0. 38, P<0. 05), and the level of leptin was negatively correlated with MDA and 8-iso-PGF2a in patients after treatment (r1 = - 0. 35, r2= - 0. 37, both P < 0. 05). In stepwise regression analysis, MDA and 8-iso-PGF2α showed a significant association with leptin. Conclusion The levels of leptin are significantly lowered in patients with hyperglycemia crisis. Oxidative stress may participate in determining the leptin level in hyperglycemia crisis.     

高糖危象患者血清瘦素和氧化应激的关系

Objective To investigate the relationship between the levels of serum leptin and oxidative stress in patients with hyperglycemia crisis. Methods A total of 96 patients with diabetic ketoaeidosis (DKA) and nonketotic hyperglycemia (NKH) were treated on a low-dose insulin protocol using intravenous infusion of insulin with the established rate of 0.1U·kg-1·h-1,with the patients on intravenous fluids and receiving nutrition by mouth and vein. The levels of serum leptin, 8-iso-prostaglandin F2α (8-iso-PGF2α, the activities of superoxide dismutase (SOD), total antioxidant capacity (TAC) and the contents of malondialdehyde (MDA) in 96 patients with hyperglycemia crisis on admission and after insulin therapy with resolution of hyperglycemia and ketoacidosis (72 hours) were measured. Another 35 healthy individuals served as normal control. Results The activities of SOD, TAC and the levels of leptin before treatment were lower in patients with hyperglycemia crisis than in normal controls, and the levels of MDA and 8-iso-PGF2a were more markedly elevated than those in normal controls (all P<0. 05). The activities of SOD, TAC and the levels of leptin in patients after treatment were significantly higher than those in patients before treatment, and the levels of MDA and 8-iso-PGF2a. were significantly lower than those in patients on admission (all P<0. 05). There was significant positive correlation between leptin and MDA in patients before treatment (r=0. 38, P<0. 05), and the level of leptin was negatively correlated with MDA and 8-iso-PGF2a in patients after treatment (r1 = - 0. 35, r2= - 0. 37, both P < 0. 05). In stepwise regression analysis, MDA and 8-iso-PGF2α showed a significant association with leptin. Conclusion The levels of leptin are significantly lowered in patients with hyperglycemia crisis. Oxidative stress may participate in determining the leptin level in hyperglycemia crisis.     

高糖危象患者血清瘦素和氧化应激的关系

Objective To investigate the relationship between the levels of serum leptin and oxidative stress in patients with hyperglycemia crisis. Methods A total of 96 patients with diabetic ketoaeidosis (DKA) and nonketotic hyperglycemia (NKH) were treated on a low-dose insulin protocol using intravenous infusion of insulin with the established rate of 0.1U·kg-1·h-1,with the patients on intravenous fluids and receiving nutrition by mouth and vein. The levels of serum leptin, 8-iso-prostaglandin F2α (8-iso-PGF2α, the activities of superoxide dismutase (SOD), total antioxidant capacity (TAC) and the contents of malondialdehyde (MDA) in 96 patients with hyperglycemia crisis on admission and after insulin therapy with resolution of hyperglycemia and ketoacidosis (72 hours) were measured. Another 35 healthy individuals served as normal control. Results The activities of SOD, TAC and the levels of leptin before treatment were lower in patients with hyperglycemia crisis than in normal controls, and the levels of MDA and 8-iso-PGF2a were more markedly elevated than those in normal controls (all P<0. 05). The activities of SOD, TAC and the levels of leptin in patients after treatment were significantly higher than those in patients before treatment, and the levels of MDA and 8-iso-PGF2a. were significantly lower than those in patients on admission (all P<0. 05). There was significant positive correlation between leptin and MDA in patients before treatment (r=0. 38, P<0. 05), and the level of leptin was negatively correlated with MDA and 8-iso-PGF2a in patients after treatment (r1 = - 0. 35, r2= - 0. 37, both P < 0. 05). In stepwise regression analysis, MDA and 8-iso-PGF2α showed a significant association with leptin. Conclusion The levels of leptin are significantly lowered in patients with hyperglycemia crisis. Oxidative stress may participate in determining the leptin level in hyperglycemia crisis.     

高糖危象患者血清瘦素和氧化应激的关系

Objective To investigate the relationship between the levels of serum leptin and oxidative stress in patients with hyperglycemia crisis. Methods A total of 96 patients with diabetic ketoaeidosis (DKA) and nonketotic hyperglycemia (NKH) were treated on a low-dose insulin protocol using intravenous infusion of insulin with the established rate of 0.1U·kg-1·h-1,with the patients on intravenous fluids and receiving nutrition by mouth and vein. The levels of serum leptin, 8-iso-prostaglandin F2α (8-iso-PGF2α, the activities of superoxide dismutase (SOD), total antioxidant capacity (TAC) and the contents of malondialdehyde (MDA) in 96 patients with hyperglycemia crisis on admission and after insulin therapy with resolution of hyperglycemia and ketoacidosis (72 hours) were measured. Another 35 healthy individuals served as normal control. Results The activities of SOD, TAC and the levels of leptin before treatment were lower in patients with hyperglycemia crisis than in normal controls, and the levels of MDA and 8-iso-PGF2a were more markedly elevated than those in normal controls (all P<0. 05). The activities of SOD, TAC and the levels of leptin in patients after treatment were significantly higher than those in patients before treatment, and the levels of MDA and 8-iso-PGF2a. were significantly lower than those in patients on admission (all P<0. 05). There was significant positive correlation between leptin and MDA in patients before treatment (r=0. 38, P<0. 05), and the level of leptin was negatively correlated with MDA and 8-iso-PGF2a in patients after treatment (r1 = - 0. 35, r2= - 0. 37, both P < 0. 05). In stepwise regression analysis, MDA and 8-iso-PGF2α showed a significant association with leptin. Conclusion The levels of leptin are significantly lowered in patients with hyperglycemia crisis. Oxidative stress may participate in determining the leptin level in hyperglycemia crisis.     

高糖危象患者血清瘦素和氧化应激的关系

Objective To investigate the relationship between the levels of serum leptin and oxidative stress in patients with hyperglycemia crisis. Methods A total of 96 patients with diabetic ketoaeidosis (DKA) and nonketotic hyperglycemia (NKH) were treated on a low-dose insulin protocol using intravenous infusion of insulin with the established rate of 0.1U·kg-1·h-1,with the patients on intravenous fluids and receiving nutrition by mouth and vein. The levels of serum leptin, 8-iso-prostaglandin F2α (8-iso-PGF2α, the activities of superoxide dismutase (SOD), total antioxidant capacity (TAC) and the contents of malondialdehyde (MDA) in 96 patients with hyperglycemia crisis on admission and after insulin therapy with resolution of hyperglycemia and ketoacidosis (72 hours) were measured. Another 35 healthy individuals served as normal control. Results The activities of SOD, TAC and the levels of leptin before treatment were lower in patients with hyperglycemia crisis than in normal controls, and the levels of MDA and 8-iso-PGF2a were more markedly elevated than those in normal controls (all P<0. 05). The activities of SOD, TAC and the levels of leptin in patients after treatment were significantly higher than those in patients before treatment, and the levels of MDA and 8-iso-PGF2a. were significantly lower than those in patients on admission (all P<0. 05). There was significant positive correlation between leptin and MDA in patients before treatment (r=0. 38, P<0. 05), and the level of leptin was negatively correlated with MDA and 8-iso-PGF2a in patients after treatment (r1 = - 0. 35, r2= - 0. 37, both P < 0. 05). In stepwise regression analysis, MDA and 8-iso-PGF2α showed a significant association with leptin. Conclusion The levels of leptin are significantly lowered in patients with hyperglycemia crisis. Oxidative stress may participate in determining the leptin level in hyperglycemia crisis.     

不同溶栓剂对急性心肌梗死患者凝血与纤溶系统的影响及其临床意义

ObjectiveTo compare the clinical effects of strepkinase (SK),recombinant strepkinase (rSK),urokinase (UK),recombinant tissuetype plasminogen activator (rtPA) on fibrinolytic and coagulation system during the thrombolysis treatment in patients with acute myocardial infarction (AMI).MethodsThe levels of prothrombin time (PT),activated partial thromboplasmin time (APTT),fibrinogen (FG),plasminogen (PLG),α₂antiplasmin (α₂AP),tissue plasminogen activator (tPA),tissue plasminogen activator inhibitor1(PAI1) were measured in 43 AMI patients with (SKn=8;rSKn=13;UKn=16;rtPAn=6) and without (n=14) thrombolytic therapy before and at 4,12,24,48 hours,and 1 week after treatment.ResultsAfter thrombolytic treatment 26 cases (60.5％) had coronary artery reperfusion.Following thrombolytic therapy with SK,rSK,UK,rtPA,plasma PT and APTT were significantly prolonged;tPA activities and DDimer levels were significantly increased;PAI1,PLG,α₂AP activities and FG levels were significantly decreased (all P<0.01,compare to pretreatment values).But those changes were short,and tPA and PAI1 activities returned to the levels prior to treatment at 12 hours after thrombolytic therapy.The effects of SK and rSK on fibrinolytic and coagulation system were relatively greater than that of UK,and rtPA on FG showed the least effect.In addition,plasma tPA activity in patients with patency was higher than those without patency pretreatment,but PAI1 activity was on the contrary (all P<0.05).ConclusionsAfter therapy with SK or rSK,UK or rtPA,the fibrinolytic activity is markedly increased together with reduction in coagulation activity,and changes in coagulation and fibrinolytic activities might associate with clinical results with thrombolysis.