The foramen ovale (FO) is an important intra-atrium communication in fetuses.FO restriction or closure in fetuses with or without congenital heart defects can cause hemodynamics abnormality in utero.Fetal echocardiography plays an irreplaceable role in diagnosis of disease about FO.Progresses of ultrasound in fetuses with restricted or premature closed FO were reviewed in this article.

Objective To establish a liquid chromatography-tandem mass spectrometric ( LC-MS/MS ) for determination of clopidogrel in human plasma and stability of clopidogrel under different conditions,which was used subsequently to investigate the pharmacokinetics of clopidogrel in healthy Chinese volunteers. Methods Clopidogrel-d4 hydrogen sulfate was used as an internal standard. Separation was achieved on a WATERS Xterra? RP18 column (4.6 mm× 100 mm,3.5μm) with a mobile phase consisting of acetonitrile-0.1% formic acid (66:34) at a flow rate of 1.0 mL.min-1 within 3.2 min. ESI source was applied and operated in positive ion mode and multiple reaction monitoring (MRM). Plasma samples were pretreated by acetonitrile precipitation. Results A good linearity of clopidogrel was obtained in the concentration range of ( 5-5 000 ) ng.L-1. The lower limit of quantification was 5 ng.L-1. The intra-and inter-run precisions at three quality control levels were within 1.3%–9.9%,the relative deviation of the assay was within -6.2%-14.3%. The blood samples were stable when chilled with crushed ice ( 0℃) and cold water ( 4℃) ,as well as kept at room temperature ( 20℃) for 40 min. The plasma QC samples were stable at room temperature ( 20 ℃) for 4 h,at -70℃ for 38 days and during three freeze-thaw cycles. Hemolysis in blood sample drawn didn’ t affect the plasma concentration. The determination and the result of incurred sample reanalysis met the requirements. Conclusion A specific, rapid, sensitive and stable LC-MS/MS method is developed and validated for determination of clopidogrel in human plasma. The method is proven to be suitable for study of the pharmacokinetics of clopidogrel in healthy Chinese volunteers after a single oral dose of 75 mg clopidogrel hydrogen sulphate tablet.

Objective To compare the displayed inner diameter of coronary stent by high definition(HD)and gem?stone spectral imaging(GSI)using dynamic cardiac and coronary artery phantom. Methods Five different types of coro?nary stents(internal diameter, 3.10 mm±0.55 mm;strut thickness, 0.12 mm±0.04 mm)were placed into a pulsating cardiac phantom(ALPHA 1-VT PC, Fuyo Corporation, Japan). The stent phantom was scanned by 3 systems, gemstone spectral im?aging(GSI), spiral scan(S)and HD. All the spectral imaging data were analyzed using GSI viewer to reconstruct the VMS (monochromic spectral) images(60-140 keV). Image noise(N), signal-to-noise ratio(SNR), contrast-to-noise ratio(CNR) and inner diameter were compared between images acquired through these 3 systems. Results SNRs in images of S and HD were higher than that of GSI(P<0.05),while there were no significant differences in CNRs among images of GSI, S and HD(P>0.05). The visible diameter(%)measurements of HD(0.85 ± 0.06)was significant higher than that of the other 2 scan systems and most close to the width of those stent’s actual size.(GSI:0.40±0.16, 0.48±0.13, 0.50±0.14, 0.51±0.13, 0.45±0.05,0.52±0.13, 0.53±0.13, 0.53±0.13, 0.53±0.13, S:0.53±0.14, P<0.05). Conclusion There was no significant dif?ferences in image quality among the images acquired by these 3 systems when the heart rate was set to 60 beats per min. Comparing to GSI and S, HD can produce best represent images to the known inner diameter of coronary stent.

Objective To evaluate the analytical performance of Mindray BS‐820 automatic biochemical analysis system used in primary hospitals in Guangzhou area for verifying whether its performance meeting the clinical requirements .Methods Accord‐ing to the EP5‐A2 ,EP6‐A ,EP7‐A2 and EP‐17A files recommended by CLSI and the Pharmaceutical Industry Standard of the Peo‐ple′s Republic of China YY/T0654‐2008 ,the precision ,linear rang ,anti‐interference capability ,sensitivity and carry‐over rate of the Mindray BS‐820 automatic biochemical analysis system were evaluated by adopting 16 routine biochemical items .Results The pre‐cision results of all 16 analyzing items conducted by the Mindray BS‐820 automatic chemical analysis system conformed to the re‐quirements .The results of 15 items showed good linear relation during the testing range (r≥0 .997 9) .In 16 biochemical items ,the anti‐interference capability of TBIL ,TP ,TC ,TG ,LDL ,HDL ,UREA and Ca to bilirubin ,triglyceride and hemoglobin conformed to or were higher than the anti‐interference capability declared by manufacturer ,but among other 8 items ,the anti‐interference capabil‐ity of 3 items was lower than that declared by manufacturer .The limit of blank(LOB) of all 16 analyzing items was less than LOB in the kit instruction .The carry‐over rate of Glu was 0 .02% ,less than 0 .50% .Conclusion This instrument has good precision , sensitivity and low carry‐over rate(0 .02% ) ,the linear range is ideal ,r≥0 .997 9 ,the anti‐interference capability basically satisfies the clinical needs .Therefore this instrument is suitable for the use in the middle‐small scale laboratory department .

Objective To explore the application value of the real-time three-dimensional ultrasound Bi plane technology in evaluation of the foramen ovale blood in fetus.Methods The coronal plane of inferior vena cava entering the right atrium in 186 normal fetuses were obtained.The dimensions of foramen ovale (DFO) and inferior vena cava at the entrance of right atrium (DIVC) were measured in the coronal plane.The ratio of DFO and DIVC (DFO/DIVC) was calculated.The correlation be tween DFO/DIVC and gestational age was analyzed.Results There was no correlation between DFo/DIvc and gestational age (r=0.228,P＞0.05).There were 155 cases during second trimester (21 28 weeks),and the DFO was (4.46±0.57)mm,DIVC was (4.55±1.22)mm,DFO/DIVC was 1.03±0.22.There were 31 cases during late pregnancy (29-36 weeks),and the DFO was (5.20±0.43)mm,DIVC was (5.90±1.33)mm,DFO/DIVC was 0.92±0.17.The mean 95％ confidence interval of DFO/DIVC was (0.98,1.04),the 95％ normal reference range was (0.80,1.44).Conclusion The coronal plane of inferior vena cava entering the right atrium can be obtained with real-time three-dimensional ultrasound Bi-plane technology,the flow from the inferior vena cava enters right atrium which is divided by the upper atrial septum can be observed,which is important in evaluating the foramen ovale blood.

Objective To observe the effects of family intervenes on the social function of chronic schizophrenic outpatients in countryside.Methods 150 chronic schizophrenic patient were divided into the intervention group(75 cases)and the control group(75 cases).The intervention group accepted comprehensive family intervention education by the professional,while the control group only accepted the medical intervention.They were assessed with Social Disability Screening Schedule(SDSS),Scale for Assessment of Positive Symptoms(SAPS),Scale for Assessment of Negative Symptoms(SANS),Morningside Rehabilitation Stats Scale(MRSS)before,1 year,2 years and 3 years after intervention.Results The scores of SANS and MRSS improved in the intervention group compared with that of the control group(P<0.001),as well as the ability of self-care,family,responsibility,vocation of SDSS(P<0.05).Conclusion The family intervenes may improve the negative symptom and some social ability of chronic schizophrenic outpatients in countryside.

To investigate the mechanism of electroacupuncturein treating chronic fatigue syndrome(CFS) in term of the neuro-endocrine system by observing the regulative effect of EA on hypothalamic-pituitary-adrenal index (HPA index) and corticotropin releasing hormone mRNA (CRH mRNA) in CFS model rats. Methods: The rats were randomly divided into control group, model group, and electroacupuncture group. Model and electroacupuncture groups were forced to swim in cold water to make CFS model, while rats in electroacupuncture group were treated with electroacupuncture treatment at the same time. Electroacupuncture group was given at Baihui(GV 20) and Zusanli(ST 36). Evaluation of the model was processed according to the behavior changes of the rats. Hypothalamic, pituitary, and adrenal were weighted to calculate HPA index. CRH mRNA in hypothalamic was measured by fluorescence quantitative polymerase chain reaction (FQPCR). Results: The model rats had behavior changes,and both physical and mental fatigue was observed. HPA index raised and expression of CRH mRNA in hypothalamus increased in CFS rats. After electroacupuncture treatment, the physical and mental fatigue was improved, and the hypothalamic index and CRH mRNA decreased significantly, while the pituitary and adrenal index only had little decrease. Conclusion: Cold water swim press could mimic the pathogenesis and make similar manifestations in rats with the common clinical symptoms. CFS has close relationship with increase of HPA index and CRH mRNA expression. Electroacupuncture can regulate the function of HPA axis to deal with CFS.

Objective To analyze the characteristics of benign and malignant breast tumors with 2D and color Doppler ultrasound, and to assess the value of color Doppler ultrasound in the diagnosis of breast cancer. Methods A total of 674 patients (327 malignant and 347 benign) of breast tumor underwent 2D and color Doppler ultrasonogarphy. Two-dimensional ultrasound was used to observe the size, form, margin and internal echo of the tumors;color Doppler was performed to observe the degree of blood flow signal in the tumor, and to measure peak systolic velocity (PSV) and resistance index (RI). Results Totally 671 patients were diagnosed with ultrasound. The size of the tumors were from 0.50 cm×0.41 cm to 5.42 cm×4.10 cm. The ratio of vertical and transverse diameter of 69.11% (226/327) of the malignant tumors ≥1.0. Most tumors (266/327, 81.35%) presented with irregular margin like incised or feet of crab;61.47% (201/327) had microcalcification. Color Doppler found that 92.97% (304/327) of the tumors had blood flow signal;PSV was 15.34-39.76 cm/s, RI was 0.65-0.98, and 91.61% (262/286)≥0.70. Significant differences of the ratio of vertical and transverse diameter, the margin of the tumor, microcalcification and blood flow signal, PSV and RI (P＜0.01) were found between benign and malignant breast tumors. Conclusion The diagnosis and differential diagnosis of benign and malignant breast tumors can be significantly improved with comprehensive analysis of 2D ultrasound, blood flow signal, PSV and RI. Color Doppler ultrasound plays an important role in the diagnosis of breast cancer.

Objective MiRNA-10b is an important member of the MiRNA family , which has been proven that miRNA-10b can promote the growth and invasion of a variety of tumor cells .The aim of this study was to to investigate the effect and mechanism of miR-NA-10b on proliferation and invasion of low metastasis of lung cancer cell line (95-C). Methods The recombinant of miRNA-10b was transfected into 95-C by lipofectin method .The experiment set up 3 groups:blank control group , negative control group and miRNA-10b expression plasmid transfected group .MiRNA-10b expression level and KLF4mRNA expression level were detected by real-time fluores-cence quantitative PCR ( RTFQ-PCR) .The cell proliferation was detected by cell proliferation assay .The invasive ability of cell was de-tected by Transwell experiment .The expression of KLF4 protein was assessed by Western blot . Results At 48 hours after transfection, compared with blank control group (1.01 ±0.08) and negative control group (0.86 ±0.07), the miRNA-10b expression level in miRNA-10b expression plasmid transfected group (1.61 ±0.12) increased significantly (P<0.05) and there was no statistical difference between blank control group and negative control group (P>0.05).From the growth curve, the cell proliferation rate was obviously increased in miRNA-10b expression plasmid transfected group ([188.0 ±15.1]/HP) compared with the other two groups ([151.0 ±11.3]/HP), ([136.0 ±10.8]/HP) (P <0.05) and there was no statistical difference between these two groups ( P >0.05 ).Transwell result showed more cells transferred to the other side of Transwell compared with the other two groups ( P <0.05 ) and there was no statistical difference between these two groups (P >0.05).The expression of KLF4 protein decreased in miRNA-10b expression plasmid transfected group compared with the other two groups ( P<0.05).KLF4mRNA expression decreased, but the difference had no statistical significance (P>0.05). Conclusion MiRNA-10b might promote the pro-liferation and invasion of 95-C through down-regulation of KLF4 protein expression .

Objective To explore the ultrasonographic method in fetal coronary sinus (CS) dilation.Methods Totally 145 normal fetuses (normal group) and 72 fetuses of CS dilation (CS group) diagnosed prenatally were retrospectively reviewed.The long axis of coronary sinus was displayed in the non-standard four chamber view and the area of the sagittal view of CS was measured.Transverses scans combined with color Doppler were used to acquire four chamber view,left and right ventricular outflow tract views,three vessel view.In addition,sagittal scans with color Doppler were used to get short-axis view at the level of great arteries,vena cava long axis view,aortic arch view,and ductal arch view.The characteristics of CS were observed.Results CS area of sagittal view was positively correlated with gestational age (normal group:r=0.954,P＜0.05;CSgroup:r=0.904,P＜0.05).In the samegestational weeks,the CS area of the sagittal view in the normal group was less than that in the CS group (all P＜0.01).In CS group,52 fetuses were persistent left superior vena cava,15 fetuses were total anomalous pulmonary venous connection,5 fetuses were associated with right heart pressure overload.Conclusion Fetal CS sagittal section area is positively correlated with gestational age.When the fetal heart ultrasonography found CS dilation,other intracardiac malformations should also be considered.The etilogies of CS dilation should be analyzed clinically through multi-slice,multi-angle scanning.