Through the five years practice of setting up a series of the electrocardiologe electives for the clinical medical undergraduate students,we have explored the new pattern for training electrocardiologe talents.

Objective To explore influences of improved intramuscular injection on quality of benzathine benzylpenicillin medication.Methods The cluster random sampling was adopted to select 178 patients who needed injection of 240U benzathine benzylpenicillin.A self-control study design was used,and benzathine benzylpenicillin was injected in both sides with each of 1 200 000 units.The left side was injected via routine method,while the right side was injected by an improved intramuscular injection.One-time success rate,degree and duration of pain during and after injection were recorded.Results The differences of one-time success rate,pain during injection,pain after injection,duration of pain after injection and incidence of induration after injection between two groups were statistically significant(P＜0.01).Conclusion The improved intramuscular injection can improve one-time success rate of benzathine benzylpenicillin,reduce pain during injection and local pain after injection,shorten duration of pain and decrease incidence of induration after injection.

Objective To design the coding User Interface of DICOM SR based on PACS and introduce the coding func- tion.Methods 1 000Mb trunk net was adopted in PACS and 100Mb was exchanged on tabletop.To exploit SQLServ- er2000 database and take the PingYingJiaJia and WuBiJiaJia as Chinese input methods.To exploit optical disk edition of ACR and ICD-10 coding system to construct coding database.To adopt the system of DICOM SR explored ourselves. Results User Interface referred to the rule and definition of DICOSR.To make report disposal and case management and statistics query and imagine teaching and HIS connection in one windows and can manipulate each other.ACR and ICD-10 coding key were set in right of diagnosis report interface.Hitting ACR and ICD-10 coding key would spring the relating coding window.Conclusion User Interface of DICOM SR was friendly.It was powerful and utility.

This article was aimed to assess the effectiveness and safety of Y in-Dan Xin-Nao-Tong (YDXNT) Cap-sule combined with routine modern therapies for treatment of type-2 diabetes mellitus (T2MD) complicated with coronary heart disease (CHD). Databases including CBMDisc, CMAC, CNKI, VIP, Wanfang Data, PubMed, EMbase, and Web of Science were electronically searched from inception to December 2013. Randomized controlled trials (RCTs) on YDXNT capsule combined with routine modern therapies for treatment of T2MD complicated with CHD were included. Two reviewers independently screened literature according to the inclusion and exclusion criteria, ex-tracted data, and assessed the methodological quality of included studies. Then, meta-analysis was performed using RevMan 5.1.0 software. The results showed that a total of 9 RCTs with 667 T2MD with CHD cases were included. The results of meta-analysis indicated that the total effective rate of YDXNT capsule combined with routine modern therapies was significant higher than the routine treatment for T2MD complicated with CHD treatment with statistical significance (OR = 4.01, 95%CI [2.37-6.79], P< 0.000 01). It showed that YDXNT capsule combined with routine modern therapies can control angina pectoris. Due to limitation of included data, controlling of the duration of angina pectoris, the attack frequency of angina pectoris, and fasting blood glucose, may be better than the routine treatment group with significant differences. YDXNT capsule can improve hemorheology indices and reduce high condensation state among CHD with T2DM patients in order to relieve angina pectoris. It was concluded that on the basis of current clinical evidences, YDXNT capsule had better treatment effect than the routine treatment group in the treatment of CHD with T2DM. However, the results have certain limitations. It still required double-blind multi-center RCTs with high quality, large samples for further verification.

AIM: To examine the expression of miRNA-22 in the ovarian tissues and the effect of miRNA-22 over-expression on the proliferation, migration and invasion in SKOV-3 cells.METHODS: The expression levels of miRNA-22 in different ovarian tissues and SKOV-3 cells were determined by qPCR .miRNA-22 was over-expressed by trans-fection of miRNA-22 mimic.The cell viability was examined by CCK-8 assay.The cell migration was measured by wound healing test .The cell invasion was analyzed by Transwell assay .The protein expression levels of VEGF and P 53 were deter-mined by Western blot .RESULTS: Compared with the normal ovarian tissue , the expression level of miRNA-22 was remarkably decreased in the ovarian tumor tissues .After transfection with miRNA-22 mimic, the expression level of miRNA-22 in the SKOV-3 cells was significantly increased , while the cell viability , migration and invasion were obviously decreased .Moreover , the protein expression of VEGF and P 53 was dramatically inhibited after over-expression of miRNA-22.CONCLUSION:The decreased miRNA-22 expression may be correlated with the development of ovarian can-cer.Over-expression of miRNA-22 decreases the cell viability , migration and invasion by reducing the protein expression of VEGF and P53.

BACKGROUND: Transplantation of bone marrow mesenchymal stem cells (MSCs) has been used in the field of repair of nerve injury. Brain stereotactic transplantation and transvascular transplantation are two transplantation methods. OBJECTIVE: We infused MSCs into rat peripheral cerebral infarct focus, in order to investigate the improvement of rat neurological dysfunction by forelimb use asymmetry test and postural reflex test.DESIGN: A randomized controlled animal experiment. SETTING: Department of Neurology, First Hospital of Jilin University.MATERIALS: This study was performed at the Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, Jilin University between October 2006 and April 2007. Healthy male Wistar rats of clean grade, weighing 250-280 g, were provided by the Laboratory Animal Center of Jilin University. The protocol was performed in accordance with ethical guidelines for the use and care of animals.METHODS: MSCs from healthy adult volunteers were in vitro cultured and proliferated by density gradient separation and adherence screening method. Their immunophenotypes were identified by a flow cytometer. The Wistar rats were randomized into 5 groups with 10 rats in each: normal control group, sham-operated group, model group, serum-free DMEM-treated group (DMEM group) and MSCs -treated group (MSCs group). Rat models of cerebral ischemia/reperfusion were developed by occluding rat right middle cerebral artery following suture occlusion method modified by Longa et al. Rats in the normal control group were untouched. In the sham-operated group, operation was not ended till cervical interior and exterior arteries were exposed and sutured, and the other disposals were the same as those in the model group. At ischemia 90 minutes reperfusion 1 hour, a stereotaxic apparatus was used to take rat right peripheral cerebral ischemic region as transplantation site: 3 mm lateral to, 1mm caudal to and 4 mm posterior to Bregma. Rats in the MSCs group were slowly injected 5 μL BrdU-labeled MSCs (4×1011 L-1) serum-free medium. Rats in the DMEM group were injected 5 μL serum-free medium. After perfusion, inserted needle was retained for 5 minutes and then slowly withdrawn in order to avoid the back flow of liquid from needle pole. The survival of MSCs in rats was detected by immunohistochemical technique, and rat behavioral changes of observed on days1, 3, 7 and 28 after transplantation by forelimb use asymmetry test and postural reflex test.MAIN OUTCOME MEASURES: ① The immunophenotype of MSCs were identified by a flow cytometer. ② The survival of transplanted MSCs in the rat brain. ③ Rat behavioral changes. RESULTS: All the 50 rats were included in the final analysis. ① High purity of MSCs were harvested in the experiment. Flow cytometer detection showed that both CD44 and CD29 were positive, while CD34, CD45 and CD31 were negative. ② MSCs transplanted into the brains of rats in the MSCs group gathered in the peripheral cerebral ischemic region and survived. ③ Behavioral scores of rats in the MSCs group were significantly lower than those in the other groups (P < 0.05). They were gradually decreased with time after transplantation, and reached the valley value on day 7 after transplantation (P < 0.01). CONCLUSION: Neurological function of rats recovers in all the groups except normal control group. But the recovery differs in different groups, and neurological function of rats in the MSCs group recovers better than that in other groups.

Objective:To observe the effect of protoscolex on Th subsets and correlative cytokine in mice spleen cells in vitro.Methods:Co-culture spleen cells from BALB/c mice with protoscolices,then IL-4,IFN-γand TGF-βproduction in cell culture supernatants were analyzed by ELISA.The percentage of Th subsets were detected by Flow Cytometry analysis.Results:Secretion levels of IL-4 and TGF-βwere significantly increased in spleen cells at different time point in co-culture system with protoscolices.Ratios of Th2 and Treg cells were also significantly increased in co-culture system at different time points than the control groups.However,there was no statistical significance for ratio of Th1 cells at different time points.Conclusion:The protoscolex can increase the ratios of Th2 cells and Treg cells from spleen cells.Secretion levels of IL-4 and TGF-βwere also increased in spleen cells co-cultured with protosco-lices.The results suggest that these Th cell subsets play a role in the immune escape of the hydatid disease.

OBJECTIVE To investigate the protective effect of curcumin on Aβ1-42 damaged cells. METHODS SH-SY5Y cells were cultured with Aβ1-4210μmol · L-1 in the absence or presence of curcumin 1, 5 or 10 μmol · L-1. Cell viability was assayed by MTT. Cell membrane damage was detected by the concentration of lactate dehydrogenase (LDH) in culture medium. Cell apoptosis was measured by flow cytometry with Annexin Ⅴ-FITC/PI staining. Mitochondrial membrane potential was characterized by fluorescence of JC-1 dye. Enzymatic activity of caspases-9 and-3 was measured by colorimetric assay. Protein expression of caspase-3 was detected by Western blotting. RESULTS Compared with vehicle control, the cell viability, concentration of LDH and both early and late apoptosis in Aβ1-4210 μmol · L-1 damaged group were decreased(P<0.01). However, the cell viability, release of LDH and both early and late apoptosis in curcumin group were promoted compared with that in Aβ1-4210μmol·L-1 damaged group. Curcumin inhibited Aβ1-42-induced depolarization of mitochondrial membrane potential(P<0.01), and attenuated Aβ1-42-induced activation of both caspases9 and caspases3 in a concentration-dependent manner, respectively(r=0.990, P<0.01; r=0.996, P<0.01). There were no significant differences in the above detected indexes between curcumin 10 μmol · L-1 group and vehicle control group. CONCLUSION Curcumin inhibits Aβ1-42-induced cell damage and apoptosis by promoting mitochondrial membrane potential and depressing the activation of caspases.

BACKGROUND: Vascular endothelial growth factor (VEGF) can accelerate neovascularization and, as a multifunctional cytokine, performs critical functions via its receptors in angiogenesis.OBJECTIVE: To investigate the expression of VEGF and its receptor FLT-1 and FLK-1 mRNA during the early stage of acute focal cerebral brain ischemia, and examine the relationship between the timing and location of their expressions.DESIGN: Randomized controlled study.SETTING: Department of Neurology of the First Hospital Affiliated to Jilin University and Teaching and Research Section of Pathology, Bethune Medical College of Jilin University.MATERIALS: This study was carried out between June 2001 and April 2002. Totally 130 adult SD rats were selected, with male and female in half, and randomly divided into normal control group (n=10), sham operation group (n=10), and cerebral ischemia group (n=110). The rats in cerebral ischemia group were further divided equally into 11 subgroups and examined at 0, 1, 2, 3, 6, 24, 48 hours and 1, 2, 3, 4 weeks after cerebral ischemia model establishment, respectively.METHODS: Permanent middle cerebral artery occlusion (MCAO) model was established in rats in cerebral ischemia group by ligation of the left common carotid artery, while the rats in the sham operation group received no artery ligation but with identical other treatments. The rats in the control group did not have any treatment. Reverse transcriptional (RT) PCR was used to detect the expression of VEGF and its receptor mRNA at different time points after ischemic model establishment, and neovascularization in the rats'brain was observed.MAIN OUTCOME MEASURES: ① Expression of VEGF and its receptor mRNA and ② neovascularization in the brain tissue at different time points of cerebral ischemia.RESULTS: Data of the 130 mice were statistically analyzed without losses.At 3, 6, 24, and 48 hours of ischemia, the number of cells positive for VEGF expression was 31.13±2.21, 43.11±2.43, 85.41±2.75 and 98.66±1.76 in each vision filed in the surrounding ischemic region, greater than the numbers in the central ischemic region at the corresponding time points (13.32±1.31, 19.40±3.22, 47.63±2.45, 57.32±3.35 in each vision field, respectively, P ＜ 0.05). VEGF mRNA expression gradually decreased since 48 hours after model establishment till recovering the control level by 2weeks. The expression of VEGF receptor FLT-1 mRNA, determined by the number of positive cells in each vision field at 3, 6, 24, and 48 hour after the ischemia in each vision field for FLK-1 mRNA at these time points in the peripheral ischemic regions, higher than those in the central ischemic regions (P ＜ 0.05), which recovered the control level 3 weeks after the ischemia (P ＜ 0.05). At 48 hours and 1 week after the ischemia, the number of microvessels in each vision field was 47.2±2.11 and 199.2±3.45 in the peripheral ischemic region, significantly higher than the number in the central ischemic region (29.4±2.37 and 76.6±4.62, P ＜ 0.05).CONCLUSION: VEGF and its receptors FLT-1 and FLK-1 mRNA are expressed in the neurons, glial cells and endothelial cells during the early stage of acute focal cerebral ischemia, and the expressions are significantly enhanced in response to ischemia, exhibiting temporal and spatial expression patterns.

Objective:To understand the expression levels of Tim-3,a new proinflammatory factor in the early stages of Echinococcus granulosus infection in mice.Methods: BALB/c mice were infected with E.granulosus.Peritoneal macrophages and spleen cells were collected at 1,5,9 and 13 days post-infection.At different time points ,the levels of Tim-3 in peritoneal macrophages and spleen CD3+lymphocyte subsets were detected by FCM , and the relative expression of TLR 4 mRNA was detected by qRT-PCR.Results:There was no significant difference in the expression levels of Tim-3 of CD3+spleen lymphocyte subsets between E.granulosus group and control group (P>0.05).The expression levels of Tim-3 of spleen macrophages (9,13 days) and peritoneal macrophage (5,9,13 days) were much higher in E.granulosus infected group than those in control group with statistical significance (P<0.05).The numbers of macrophages were no change.Compared with control groups,the relative expression of TLR4 mRNA at 1 day post-infection was statistically higher in E.granulosus infected group ( P<0.05 ).Conclusion:During early stage of E.granulosus infection in mice,the levels of Tim-3 expression are upregulated,while the expression of TLR4 are downregulated,which may inhibit the function of macrophages resulting in host-immunity-defensive-system inhibition and immune tolerance of E.granulosus to host.