Objective:To explore the predictive value of triglyceride-glucose (TyG) index combined with low-density lipoprotein cholesterol (LDL-C) for major adverse cardiovascular events (MACE) in patients with coronary heart disease (CHD) complicated by type 2 diabetes mellitus (T2DM).Methods:A total of 248 patients with CHD and T2DM admitted to the First Affiliated Hospital of Xinjiang Medical University from July 2022 to January 2024 were retrospectively enrolled. All patients were followed up for 2 years and divided into MACE group (43 cases) and non-MACE group (205 cases) according to the occurrence of MACE. Indicators such as TyG index and LDL-C were compared between the two groups, and their correlations with MACE were analyzed. Multivariate logistic regression was used to screen the risk factors for MACE in patients with CHD and T2DM. Receiver operating characteristic (ROC) curve was used to evaluate the predictive value of TyG index, LDL-C, and their combination for MACE in these patients.Results:Compared with the non-MACE group, the MACE group had significantly higher LDL-C [2.63(2.23, 2.95)mmol/L vs 1.99(1.60, 2.66)mmol/L, P<0.001] and TyG index [9.30(8.80, 9.87) vs 8.60(8.09, 9.15), P<0.001]. Multivariate logistic regression showed that TyG index was an independent risk factor for MACE in patients with CHD and T2DM ( OR=10.49, P<0.001). ROC curve results indicated that the area under the curve (AUC) of TyG index and LDL-C for predicting MACE were 0.731 and 0.686, respectively. The combined AUC of the two indicators for predicting MACE was 0.769(95% CI: 0.698-0.840), showing better predictive performance. Conclusions:TyG index combined with LDL-C has high predictive value for the risk of MACE in patients with CHD complicated by T2DM.

Objective:To explore the predictive value of triglyceride-glucose (TyG) index combined with low-density lipoprotein cholesterol (LDL-C) for major adverse cardiovascular events (MACE) in patients with coronary heart disease (CHD) complicated by type 2 diabetes mellitus (T2DM).Methods:A total of 248 patients with CHD and T2DM admitted to the First Affiliated Hospital of Xinjiang Medical University from July 2022 to January 2024 were retrospectively enrolled. All patients were followed up for 2 years and divided into MACE group (43 cases) and non-MACE group (205 cases) according to the occurrence of MACE. Indicators such as TyG index and LDL-C were compared between the two groups, and their correlations with MACE were analyzed. Multivariate logistic regression was used to screen the risk factors for MACE in patients with CHD and T2DM. Receiver operating characteristic (ROC) curve was used to evaluate the predictive value of TyG index, LDL-C, and their combination for MACE in these patients.Results:Compared with the non-MACE group, the MACE group had significantly higher LDL-C [2.63(2.23, 2.95)mmol/L vs 1.99(1.60, 2.66)mmol/L, P<0.001] and TyG index [9.30(8.80, 9.87) vs 8.60(8.09, 9.15), P<0.001]. Multivariate logistic regression showed that TyG index was an independent risk factor for MACE in patients with CHD and T2DM ( OR=10.49, P<0.001). ROC curve results indicated that the area under the curve (AUC) of TyG index and LDL-C for predicting MACE were 0.731 and 0.686, respectively. The combined AUC of the two indicators for predicting MACE was 0.769(95% CI: 0.698-0.840), showing better predictive performance. Conclusions:TyG index combined with LDL-C has high predictive value for the risk of MACE in patients with CHD complicated by T2DM.

BACKGROUND:Studies have shown that fibrin glue can promote the survival of myoblast grafts, reduce infarct size and induce neovascularization of infarct zone. OBJECTIVE:To understand the condition of revascularization of infarcted heart muscle using endothelial progenitor cells combined with degradable fibrin glue materials. METHODS:A total of 27 Sprague-Dawley rats were randomized into three groups, 9 rats in each group:non-myocardial infarction group, immediate transplantation group and 1-week post-infarction transplantation group. Then, these three groups were sub-grouped into two groups, respectively:endothelial progenitor cells+fibrin glue group (experimental group) and fibrin glue group (control group). At 3 and 8 weeks after transplantation, the rats were sacrificed in each group. The revascularization and function of infracted heart muscle were observed by microscope, immunohistochemistry and echocardiography. RESULTS AND CONCLUSION:Under the microscope, there were some lax connective tissues between the heart and chest in the experimental groups, but no difference existed between the experimental and control groups. The heart structure was normal relatively and difficult to be distinguished between the experimental and control groups histological y and immunological y, and there was no angeioma, vascular malformation and tumor. The number of revascularization of heart muscle showed no difference between experimental and control groups as wel as between different experimental groups. Additional y, there was no significant difference in cardiac function between experimental and control groups. Although there are no positive results of endothelial progenitor cells, we wil modify and improve the strategy and believe that the celldelivery system is of benefit and efficacy.

Objective To investigate the cell survival of the combination of fibrin glue and adiposederived stem cells (ADSCs) in rats when implanted into ischemic myocardium and the improvement of heart function.Methods The rat ADSCs were isolated from the subcutaneous adipose tissues.The surface phenotype of these cells was analyzed by flow cytometry.Myocardial infarction was induced in female rats using coronary artery ligation.One week after MI,surviving rats were randomized (random nuber) into 4 groups,control group (n =10),fibrin group (n =10),cell group (n =10) and combination group (n =10).100 μl of PBS was injected into the ischemic myocardium in control group.100 μl of Fibrin glue were injected into ischemic myocardium in fibrin group.100 μl of ADSCs labeled with DAPI were injected into the infract along the border zone in cell group.ADSCs in 100 μl of fibrin glue were injected into the infract in combination group.Four weeks after the injection the surviving rats underwent examination of heart functions by the Hemodynamics.The rats were killed and their hearts were taken out to undergo immunohistochemistry with 4,6-diamidino-2-phenylindole (DAPI) and actin and factor Ⅶ to measure the area of cardiac infarction and the capillary density.The heart infarcted size was calculated by masson trichrome staining.All data was analyzed by software SPSS 15.0,ANOVA comparison tests and the student t test were used,and P ＜ 0.05 was considered as statistically significant.Results Four weeks after the cells were transplanted,LVSP and + dp/dtmax of combination group were highest among all groups.The heart infarcted size of the combination group was (28.5 ± 3.6) ％,significantly less than those of the cell group (33.33 ± 2.3) ％ and fibrin group (35.96 ± 2.11) ％,both P ＜ 0.05.The capillary density of the combination group was (108.7 ± 11.38) /mm2,significantly greater than those of the cell group and that of the fibrin group,and greater than that of the control group.DAPI and actin double staining detected a varied increase in the number of surviving cardiomyoctyes at the heart infarcted area.Conclusions Transplantation of ADSCs with fibrin glue brings better improvement in cell survival and in restoration of heart function than either cellular or fibrin therapy alone.