The change of PKC activity and cytosolic free Ca 2+ induced by oxLDL and simvastatin in ASMC were measured by its ability to transfer phosphate from 32P-ATP to lysine-rich histone and flow cytometric analysis loading with the Ca 2+ dye fluo-3/Am, respectively. As a result, oxLDL increased total PKC activity in a dose-dependent manner with phase peaking at 14 min, then decreased slowly and maintained for at least 30 min, while oxLDL induced biphasic [Ca 2+]i responses including rapid initial transient phase and sustained phase. Removal of extracellular Ca 2+did not inhibit the rapid phase of oxLDL-induced rise in [Ca 2+]i, but abolished the sustained phase of [Ca 2+]i in response to oxLDL. Activity of PKC was markedly decreased and simvastatin did not impair the initial peak in response to oxLDL but significantly reduced the subsequent plateau phase when simvastatin was added. The results suggested that oxLDL can induce dynamic changes of signal transduction of PKC and cytosolic free Ca 2+in ASMC. The rapid initial transient phase was due to the mobilization of [Ca 2+]i from intracellular Ca 2+ pool and the sustained phase resulted from the influx of extracellular Ca 2+. The inhibition of PKC activity induced by simvastatin may contribute to the changes of intracellular Ca 2+.

To investigate the clinical significance of the expression of CD40L on peripheral blood monocytes and the changes in serum soluble CD40L in patients with acute coronary syndrome, 16 normal controls and fifty-six patients including 24 with SA (8 patients after PTCA), 20 with UA and 12 with AMI entered in this study. The expression of CD40L on monocytes was analyzed by indirect immonofluorescence flow cytometry and serum sCD40L levels were measured by ELISA. The results showed: (1) The expression of CD40L on monocytes in UA and AMI were higher compared with SA and controls ( P 0.05). (2) Patients with UA and AMI had significantly raised serum levels of sCD40L when compared with patients with SA and controls( P

Objective To test the reliability,validity and Chinese adaptation of Chinese-version Hypertension Self-care Profile (HBP SCP).Methods HBP SCP was translated into a Chinese version and had some Chinese adaptation,the reliability and validity of HBP SCP was tested in 377 patients with hypertension.Results Item-total correlations was 0.396～0.881 and the determination coefficient for each scale was 5.890～20.874.The Cronbachs'α was 0.950 for the total scale,the test-retest correlation was 0.918.The content validity index for the scale was 0.83～1.00,2 and 3 factors were extracted by principal components analysis,which contributed 58.934％,67.224％ and 66.601％ of the variance.Conclusions The Chinese-version of HBP SCP has good psychometric quality and can be used as a measurement tool for Chinese patients with hypertension.

0.05). Conclusion Tirofiban is safe and can reduce ischemic cardiac events and myocardial injury in treating ACS.

Objective： To investigate the effect of oxLDL and VitE on the expression of CD40 and CD40 ligand(CD40L) in cultured human monoc ytes. Methods： The expression of CD40 and CD40L on monocytes su rface were measured by indirect immunorescence technique in combination with flo w cytometry. Results： Low concentration of oxLDL（≤200 μg/L） significantly increased the expression of CD40 and CD40L in a dose and time dep endent manner. High concentration (>200 μg/L）of oxLDL markedly reduced the exp ression of CD40 and CD40L. When VitE was added, it significantly reduced the ex pression of CD40 and CD40L on monocytes surface induced by oxLDL in a dose-depe ndent manner. Conclusion：It is an important mechanism that the high expression of CD40 and CD40L induced by oxLDL may be contributed to the for mation of atherosclerosis. Antioxidan VitE can partially inhibit the high expres sion of CD40 and CD40L on monocytes surface induced by oxLDL.

Objective To explore the effect of pre-hospital nursing intervention in the new regional cooperative rescue model on treatment delay and the therapeutic effect in patients with myocardial infarction.Methods From January 2012 to May 2014,158 patients with acute myocardial infraction (AMI) were selected.Patients were divided into two groups,intervention group and control group,The first medical contact to balloon(FMC-to-B) time,referral time,cardiac function were analysed.Results Mean FMC-to-B time [(94±21)min vs.(102±23) min],referral time in nursing intervention [(5±3) min vs.(9±4) min)] were significantly shorter than those in control group (t=2.14,6.67,P＜0.05).After a month compared with control group,LVEF was increased [(54.8±6.9)％ vs.(48.8±6.9)％],and LVED was deceased [(50.1±8.2) mm vs.(50.5±5.6)mm] in intervention group.Conclusions Pre-hospital nursing intervention can decrease the FMC-to-B time,which could improve the cardiac function.

Objective To evaluate the performance of homocysteine(Hcy)test kit produced by a domestic company and to inves-tigate its feasibility in clinical application.Methods A series of methodological evaluation experiments including the accuracy,re-peatability,stability and linear range of the Hcy reagent kit were carried out on the Olympus Au640 biochemistry analyzer.Results The experiments showed that the relative biases of detection results of normal value quality control serum and pathological value quality control serum were 0.2% and 4.9%,respectively,which were far less than 15% of the reagent instruction.The intra-assay coefficients of variation(CV)of normal and pathological quality control serum were 2.6% and 2.3% respectively,which were less than 5% of the reagent instruction.While the inter-assay CV of normal and pathological quality control serum were 4.4% and 4.1% respectively,which were less than 10% of the reagent instruction.The experiments for the linear range evaluation showed that R 2 was 0.997 in the concentration range of 0 -66 μmol/L,which suggested that the correlation between expected value and measured value was very well.Otherwise,the slope rate b1 of 0.979 9 and the intercept b0 of 0.151 8 were both showed that the de-tection results of Hcy reagent were linear in the concentration of 0-66 μmol/L.Conclusion The performance of Hcy kit produced by a domestic company is very good in the performance indexes of accuracy,repeatability,stability,and linear range and suitable for the clinical application.

AIM: To investigate whether human umbilical vein endothelial cells and human atherosclerotic plaque lesions can coexpress CD40 and CD40 ligand . METHODS: The expression of CD40 and its ligand CD40L on human endothelia cells were measured by fluorescence microscope , flow cytometry(FCM), reverse transcription PCR(RT-PCR) and Western blotting, respectively. Both CD40 and CD40L expression in atheroma plaques were determined by immunohistochemistry. RESULTS: Cultured human endothelial cells constitutively coexpressed CD40 and CD40L in mRNA and protein levels. Stimulation with interleukin-1?, interleukin-6, tumor necrosis factor-? and interferon-? increased expression of CD40 and CD40L on endothelial cells . Human atherosclerotic lesions( n =6) showed coexpression of immunoreactive CD40 and CD40L. However, no expression of CD40 and CD40L in nonatherosclerotic human arteries. CD40L mainly expressed on the shoulder and base of the plaque. But CD40 was widespreadly expressed in plaque. CONCLUSION: Our results demonstrated that CD40 and CD40L coexpressed on human umbilical vein endothelial cells and in human atherosclerotic plaque lesions. These findings suggest a previously unsuspected role for CD40-CD40L interactions in atherosclerosis.

Objective To investigate the feasibility and effects of whole-procedure seamless nursing intervention during regional collaborative treatment of patients with acute coronary syndrome.Methods Nursing intervention was performed on pre-hospital collaboration,transfer collaboration and catheter room collaboration during regional collaborative treatment of patients with ACS.Treatment time point,therapeutic effects and major hospitalization indicators were compared before(the control group) and after(the experimental group) implementation of nursing intervention.Results There were significant differences in mean FMC-to-B time,D-to-B time,referral time,obtaining informed consent time,mortality,LVEF and LVED between two groups(P＜0.05).There were significant differences in days of hospitalization,expenditures,percentage of consumables,percentage of medication,and in-hospital mortality between two groups (P＜0.05).Conclusion Whole-procedure nursing intervention can reduce time of regional collaborative treatment of patients with acute coronary syndrome,improve prognosis,decrease financial burden and increase efficiency of ACS treatment.