Objective: To explore change of heart rate turbulence (HRT) in patients with coronary artery disease (CAD) and its predictive value. Methods: A total of 58 CAD patients were regard as CAD group. The 50 normal persons with negative CAG were regard as normal control group. All subjects received 24h dynamic ECG, CAG and echocardiography examination. Left ventricular ejection fraction (LVEF) and HRT indexes were compared between two groups. Results: Compared with normal control group, there was significant rise in turbulence onset [TO, (-1.34±1.09)% vs. (2.32±0.60)%] and significant reduction in turbulence slope [TS, (11.14±2.27) ms/RR vs. (3.44±0.60)ms/RR] in CAD group, P<0.01 both; in CAD group, along with coronary artery lesion aggravated (single-, double-, multi-vessel coronary disease), there was significant rise in TO [(1.35±0.52)% vs. (2.56±0.83)% vs. (3.01±1.62)%] and significant reduction in TS [(6.49±1.79) ms/RR vs. (3.33±1.02) ms/RR vs. (1.66±0.30) ms/RR], the difference was significant in two-two comparison among all groups, P<0.05 or <0.01; compared with CAD without cardiac event group, there was significant rise in TO [(1.68±0.61)% vs. (2.24±0.24)%], and significant reduction in TS [(5.87±1.22) ms/RR vs. (1.65±0.23) ms/RR] and LVEF[(66.18±2.64)% vs. (56.36±3.34)%] in CAD with cardiac event group, P<0.01 all. Conclusion: Weakened HRT phenomenon exists in CAD patients. HRT can be treated as an index evaluating severity of CAD patients’ condition and an effective predicting index for recurrent cardiac events in CAD patients.

0.05) ,but the BIS and SEF95% were significantly different between the isoflurane group and the desoflurane group (P

Objective To prepare the cleavable PEG and RGD co-modified liposome for tumor targeting.Methods Liposomes were prepared by film-ultrasonic method.The particle size,Zeta potential and stability in FBS were evaluated.Cellular uptake by HepG2 cell was explored.MTT assay was used to evaluate the cytotoxicity of blank liposomes. Results The particle diameter of C/RGD-LP was (104.8 ±5.5 )nm with the Zeta potential of (-4.45 ±1.75 )mV.The cellular uptake of C/RGD-LP increased 2.8 times after Cys was added.The C/RGD-LP showed little cytotoxicity to HepG2 cell.Conclusion Cleavable PEG and RGD co-modified liposomes were easy to prepare and has a special application value for targeting tumor.

To evaluate the items of critical values and alert limits of the test results , to optimize the critical values report procedure , to modify the laboratory information system ( LIS ) and the hospital information system ( HIS ) , the critical values monitoring platform was designed .Through the monitoring platform,the critical value report rate and critical value report timely rate could be calculated , so reduce medical risks and improve the level of hospital management .

Objective To evaluate the values of diagnosis in anomalies of aortic valve with transesophogeal echocardiography (TEE) before operation. Methods Thirty-seven cases of anomalies of aortic valve which were diagnosed by TEE and treated by operation were analyzed retrospectively, the features of anomalies of aortic valve, pattern of cardiac structure changing and the reference values of diagnosis with TEE in choosing correct operation method were summarized. Results There were different characteristics in the number of valve and juncture, location of juncture, opening and closing shape of aortic valve, aortic valvular stenosis, aortic valvular regurgitation or both of them.Pattern of changes of cardiac structure included ascending aorta dilatation, left ventricle enlarge and left ventricle hypertrophy. Features of aortic valve anomalies and pattern of changes of cardiac structure were the important consulting information for the selection of operation method. Conclusion TEE is an important diagnosis method for anomalies of aortic valve, and it can provide abundant and valuable information for choosing an appropriate operational method.

Adult ; Diagnostic Errors ; Female ; Humans ; Middle Aged ; Myasthenia Gravis ; diagnosis

OBJECTIVE:To provide new identification method for processed medicinal material Chinese polyphaga(Eupolyph-aga sinensis,Steleophaga plancyi) and their adulterants by establishing molecular identification method based on Cytb genes. METHODS:The total DNA of Chinese polyphaga and their adulterants was extracted using modified saturation sodium chloride method. The Cytb genes of all samples were amplified with PCR using general primers REVCB2H and REVCBJ. The phylogenetic tree of all samples was constructed with Neighbor-Joining(NJ)method using MEGA 5.1 software. The sequences of the Cytb gene of all sampled were compared by using DNAMAN sofetware. The difference between genuine product and their adulterants were analyzed,and the specific primers Esin-F and Esin-R were designed for molecular identification in different regions. RESULTS:DNA extracted from processed medicinal insects was successful to amplify Cytb gene segments. The phylogenetic tree of all sam-ples was consistent with their genetic relationship. A fragment was amplified only from genuine product but not from other adulter-ants with the designed specific primers Esin-F and Esin-R. CONCLUSIONS:DNA extraction method from processed Chinese polyphaga and their adulterants have been established. Designed specific primers are highly specific to genuine product Chinese polyphaga,and can be used for the identification of Chinese polyphaga and their adulterants.

Hepatitis B e Antigens ; Hepatitis B, Chronic ; drug therapy ; immunology ; Humans ; Interferon-alpha ; administration & dosage ; therapeutic use ; Polyethylene Glycols

Objective To detect the mutation of A379,we develop a TaqMan fluorogenic probe based amplification refractory mutation system (TaqMan-ARMS) and investigate whether the A379V variant and activity of Lp-PLA2 are the risk factors for CAD.Methods According to the amplification refractory mutation system(ARMS-PCR)combined with a TaqMan fluorogenic probe,we established and evaluated the assay teehnique of TaqMan-ARMS for measuring the genotype of variant.At the same time,we tested the aetivity of Lp-PLA2 in 395 patients with coronary heartdisease and 396 controls,whose clinical information [ages,CHO,GLU,TG,HDL,LDL,Hs-CRP,Lp (a)] were collected.Date was analyzed by using Independent-samples t test,Chi-square test,One-Way ANOVA,Binary Logistic Regression.Results CAD group had significantly higher Lp-PLA2 activity than the controls(31.51 nmol · ml-1 · min-1 ＞21.31 nmol ·ml-1 · min-1,F =16.40,P ＜ 0.001).Comparing the highest quartile of Lp-PLA2 activitv to the bottom quartile,OR was 7.50 (95％ CI:2.34-24.05) after adjustment for various traditional cardiovascular risk factors,including ages,sex,CHO,TG,Hs-CRP,Lp (a) and GLU; the genotype VV of A379V was associated with higher risk of CAD (OR =2.95; 95％ CI:1.22-7.15,P ＜ 0.05).Conclusions The TaqMan-ARMS real time PCR technique is established to analyze A379V genotype.Lp-PLA2 activity is significantly higher in CAD group and is a risk factor for CAD; the genotype VV of A379V is also a risk factor for CAD.

Objective To study the relationship of implicit memory and amnesia effect of oral midazolarn premedication and toobserve its anterograde amnesia, the effect on short-term memory and the onset time and out come of retrograde amnesia. Methods60 patients with ASA I - Ⅱ status undergoing abdomen and limb operations were divided into 3 groups with 20 cases each. Group A:oral midazolam 7.5mg;Group B:oral 15mg;Group C:placebo. The patients received combined spinal-epidural anesthesia after oral midazolam. The parameterns of EEG, SEF 95 %, BISwere collected at the same time and the degree and remark of sedation were dome according to OAA/S. The amnesia and implicit memory were investigated with pictures and muddy identified hearing rate 6 hours after operation. Results (1)Twenty min following drug ad dministration the remarks of sedation of group A and B were significantly loWver than that before and that of group C, Which was not significently different between group A and B. ( 2)The amnesia rates tested six hrs after surgery were significantly higher at 30min in group A, 20min in group B than those before treatment and were kept at 70%-80% levels, which in group C was remained zero. (3)The muddy identified hearing rate was not different significantly, among the three groups. (4) The short-term memory was all 100%during the period of drug action. (5)BIS and SEF 95% Were lower 30min after the treatment and all kept at 80 Hz and 20 Hz, which were not different remarkably between group A and B. ConclnsionOral midazolam 7. 5mg has a good effect on anterograde amnesia 30min after treatment, which may not be improved with increament in dosage. It does not lead to retrograde amnesia. The long-term memory, but not short-term memory, was impaired by midazolam. It only affects the explicit memory. Oral premnedication with midazolam can not prevent the awareness during operation totally.