Objective To evaluate left ventricular(LV)global and regional systolic function by three-dimensional speckle tracking imaging (3D-STI)in patients with systemic lupus erythematosus (SLE). Methods Twenty-two patients with SLE were selected randomly as SLE group and twenty-two healthy people were included as control group.3D-STI was performed in all participants to get global and regional strain parameters,including global longitudinal peak systolic strain(GLS),global circular peak systolic strain (GCS ),global radial peak systolic strain (GRS ),global area peak systolic strain (GAS ),segmental longitudinal peak systolic strain (SLS),segmental circumferential peak systolic strain (SCS),segmental radial peak systolic strain (SRS),and segmental area peak systolic strain (SAS).The sensitivity and specificity of GCS and GAS reflecting LV systolic function in patients with SLE were analyzed under the receiver operating characteristic (ROC)curve.Results ①The global strain:compared with the control group,GCS and GAS decreased significantly in SLE group (P <0.01),there was no significant change in GLS and GRS(P >0.05).②The regional strain:compared with the control group,the SCS in segments of basal anteroseptal,basal inferoseptal,mid anterior,mid inferosptal,mid anterolateral,apical inferior,apical lateral decreased significantly in SLE group.The SAS of basal anterior,basal inferoseptal,mid inferosptal, mid anterolateral,apical anterioe,apical lateral decreased significantly in SLE group (P <0.01).The SCS in segments of apex and the SAS of mid anterior,apical septal,apex decreased in SLE group (P <0.05).③The ROC curve:the sensitivity and specificity of GCS on detecting the LV systolic dysfunction were 59.1%and 87.5%,and those of GAS were 77.3% and 83.3%,respectively.Conclusions 3D-STI is a convenient and accurate way to early detect LV global and regional systolic dysfunction in SLE patients.

Objective To investigate the clinical significance of changes in lipids and apolipoproteins (Apo) in type 2 diabetic patients and their normoglycemic first-degree relatives (NFDR). Methods Triglyceride (TG), total cholesterol (TC), high density lipoprotein cholesterol (HDL-C), ApoAⅠ, ApoB_ 100 , ApoCⅢ and ApoE were determined in 62 type 2 diabetic patients and 67 NFDR from 29 Chinese type 2 diabetic pedigrees as well as 45 normoglycemic controls without family history of diabetes (NC) in Chengdu city, China. Results (1)TG level was higher in type 2 diabetic patients 〔(1.85?1.31)mmol/L〕 as compared with those in NFDR 〔(1.39?0.91)mmol/L〕 and NC 〔(0.92?0.45)mmol/L〕, and TG level in NFDR was higher as compared with that in NC (all P

Objective To assess the clinical application value of vector flow mapping (VFM) in evaluating the left ventricular diastolic function in hypertensive patients with different left ventricular geometric patterns.Methods One hundred and sixty-nine patients with hypertension and 50 healthy volunteers were enrolled.Hypertensive patients were divided into four groups with different ventricular configurations according to ASE guide line in 2005:normal geometry group,concentric remodeling group,concentric hypertrophy group and eccentric hypertrophy group.The quantitative parameters,including average energy loss(aEL) and circulation were measured.Difference was evaluated among five groups at apical,mid and basal segments and at different periods.The correlationship was analyzed between aEL,circulation and E/e',respectively.Results ① Compared to control group,aEL was higher in four hypertension groups at three segments of atrial systole(P ＜0.05).aEL in eccentric hypertrophy group was higher than those in control group,normal geometry group or concentric remodeling group at apical and mid segments of atrial systole,and higher than those in other hypertensive groups at basal segment (P ＜ 0.05).In four hypertension groups,circulations in rapid filling phase of anterior mitral valve were lower than that in control group,but circulations in slow filling phase of posterior mitral valve were higher than that in control group(P ＜0.05).The circulation in slow filling phase of posterior mitral valve in concentric remodeling group was higher than that in normal geometry group,and that in eccentric hypertrophy group was higher than those in normal geometry group and concentric remodeling group(P ＜0.05).②When intra-group comparison,aEL were different in different segments of same phase or at different phases of same segment(P ＜0.05).③aEL had a good correlation with E/e'at basal segment of atrial systole in four hypertension groups(r =0.66,P ＜0.01).Conclusions VFM can be utilized to analyze left ventricular hemodynamics features of hypertensive patients with different left ventricular geometric patterns,it may be a good supplement for assessing cardiac diastolic function and reflect the extent of damage.

ATP-Binding Cassette Transporters ; metabolism ; Adenocarcinoma ; genetics ; metabolism ; pathology ; Adult ; Aged ; Blotting, Western ; Female ; Humans ; Immunohistochemistry ; Lung ; metabolism ; pathology ; Lung Neoplasms ; genetics ; metabolism ; pathology ; Male ; Middle Aged ; Neoplasm Staging ; RNA, Messenger ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Biopsy ; methods ; Child ; Child, Preschool ; Endoscopy ; Female ; Humans ; Larynx ; pathology ; Male ; Middle Aged ; Nasopharynx ; pathology ; Young Adult

Objective To provide an comprehensive evaluation of the correlation between sleep apnea hypopnea syn?drome (SAHS) and nonalcoholic fatty liver disease (NAFLD). Methods The various case-control studies on the relation?ship between SAHS and NAFLD were retrieved from all kinds of large-scale databases at home and abroad (including Web of science, EMbase, Pubmed, Springer Link, EBSCO Databases, CNKI, CQVIP, Wanfang Data). The quality evaluation of in?cluded studies was made by two independent researchers. RevMan 5.1 and stata 12.0 software were used for meta-analysis. Results A total of 11 qualified documents were included in this study. Meta analysis showed that the relative risk of NAFLD was increased in SAHS patients than non-SAHS patients (RR=2.82, 95%CI:2.03-3.92, P<0.01). The serum ala?nine aminotransferase (ALT) increased in SAHS patients (SMD=0.53, 95% CI:0.02-1.05, P < 0.05). Compared with non-SAHS patients, the apnea-hypopnea index (AHI) was significantly higher in SAHS patients combined with severe NAFLD than those combined with mild NAFLD (SMD=1.42, 95%CI:0.12-2.72, P < 0.05). Conclusion The risk of NAFLD in?creases in SAHS patients. The severity of NAFLD is relatively higher with the severity of intermittent hypoxia.

Objective To explore the relation ship between expression of survivin gene in leukemia cells and its clinical effects, and to study the mechanism of survivin resist-apoptosis function in leukemia.Methods Survivin expression was detected by Western blots analysis and expressions of Fas and Caspase were examined by immunohistochemistry in 18 leukemia patients.Results Thirteen cases in peripheral blood mononuclear cell survivin positive expression was detected in 18 leukemia patients(72.2%), but no survivin expression in 10 normal persons. There were significant difference of survivin expression in ALL/ANLL patients groups and different WBC groups(P

Objective To develop a portable jet-flow device for preliminary debridement of wound mainly in battlefield,which can also be used for the treatment of nuclear or chemical weapon injury at wartime and peacetime.Methods The device was composed of a dynamic system,a servo system and consumable accessories,and developed based on a pneumaticpower scheme.Composite power unit free of dependence on electric power transferred the pneumatic power to three kinds of disinfectants through the four-way pipes.Results The device with easy operation consumed a few disinfectant and completed debridement within 30 minutes,with infection avoided effectively.Conclusion The device gains advantages in low weight,compact structure,function and low cost,and can be used for early debridement in field conditions.

Objective To evaluate the left ventricular flow field characteristics in patients with obstructive and non-obstructive hypertrophic cardiomyopathy (HCM) using vector flow mapping (VFM),then assess the left ventricular hemodynamics.Methods 40 patients with HCM were randomly selected as case group,among which 20 patients with left ventricular outflow tract(LVOT) obstruction (group Ⅰ) and 20 patients without LVOT obstruction(group Ⅱ),40 healthy adult volunteers served as control group.The conventional parameters:left ventricular ejection fraction(LVEF),interventricular septal thickness and radial and pressure gradient of left ventricular outflow tract and VFM parameters:left ventricular peak systolic velocity (Vs),systolic flow (Fs),total negative systolic flow (SQ-) and vortex parameters were measured and compared.The correlation between LVOT pressure gradient and VFM parameters were assessed.Results There was no significant difference of LVEF in three groups.Compared with control group,interventricular septal thickness in group Ⅰ and group Ⅱ was much higher(P ＜0.05).Radius in group Ⅰ was much lower than that of group Ⅱ and pressure gradient of LVOT in group Ⅰ was significantly higher compared with group Ⅱ (P ＜0.05).Comparison of VFM parameters:①Compared with control group,SQ-of basal segments in case groups were lower (P ＜0.05),while SQ-of mid and apical segments were higher(P ＜ 0.05),Vs and Fs of all segments increased (P ＜0.05),and number of vortex,vortex diameter and vorticity of obstruction and non-obstruction groups were higher(P ＜0.05).②Compared with group Ⅱ,SQ-of basal segments decreased and SQ-of mid and apical segments increased in group Ⅰ,Vs and Fs of all segments were higher.The number of vortex,vortex diameter were higher in group Ⅰ (P ＜ 0.05).③ Correlation analysis:Fs in apex,the number of vortex relatively correlated with press gradient of LVOT(r =0.60,0.65,respectively).Conclusions VFM can effectively evaluate the flow field characteristics of left ventricle in patients with obstructive and non-obstructive HCM,and Fs in apex,number of vortex were correlated with the degree of obstruction,then further assess the left ventricular hemodynamics quantitively.

Objective To establish TaqMan real-time PCR method for detection and identification of Haemophilus influenzae and Streptococcus pneumonia. Methods Two sets of primers and FAM-labeled probes targeting different genes of Haemophilus influenzae and Streptococcus pneumoniae were designed and synthesized. The bexA gene was used for identification of Haemophilus influenzae and lytA for Streptococcus pneumoniae. The sensitivity and specificity of real-time PCR were assessed for different primers and probes. Cut-off values of cycle threshold (Ct) were determined. Two hundred and seventy-eight cerebrospinal fluid (CSF) specimens from suspected bacterial meningitis cases were detected by real-time PCR assay, latex agglutination test and bacteria culture simultaneously. Results Haemophilus influenzae isolates of serotype a to d could be detected and identified by bexA primers and probe. All Streptococcus pneumoniae isolates of different serotypes could be detected and identified by lytA primers and probe. The respective sensitivities for Haemophilus influenzae and Streptococcus pneumoniae were 10 and 90 genome DNA copies in each PCR reaction. Of the 278 CSF specimens, four were positive by Haemophilus influenzae and seven positive by Streptococcus pneumoniae when detected by real-time PCR. Of the four Haemophilus influenzae positive specimens, two were positive by culture and one positive hy latex. Of the seven Streptococcus pneumonia positive specimens, two were positive by culture and two positive by latex. Conclusions Real-time PCR could rapidly detect and identify Haemophilus influenzae of serotype a to d and Streptococcus pneumoniae of different serotypes with high sensitivity. TaqMan real-time PCR could be widely used for the diagnosis of invasive meningitis caused by Haemophilus influenzae and Streptococcus pneumoniae. It can improve the rate of positivity for diagnosis of suspicious bacterial meningitis cases.