Objective To assess the value of hysterosalpingo-contrast-sonography (HyCoSy) with the contrast agent SonoVue in the diagnosis of women infertility. Methods Thirty-six cases of infertility underwent HyCoSy using SonoVue and compared with laparoscopie hydrotubation. Resnlts Among 69 fallopian tubes,22 of them were diagnosed to be obstructive by HyCoSy. Compared with laparoscopic hydrotubation, the sensitivity and specificity of HyCoSy were 90. 5 % and 93.8 %, respectively. Conclusions HyCoSy is a convenient, non-invasive, non-radiative method,which may be regarded as an effective tool to assess the fallopian tubes in patients with infertility.

Objective To explore the long-term predictive value of serum concentration of N-terminal prosoma brain natriuretic peptide (NT-proBNP) in the early acute coronary syndrome (ACS). Methods The 164 patients firstly hospitalized and finally diagnosed as acute myocardial infarction (AMI) were selected, and then the serum concentration of NT-proBNP was determined in less than 12 hours. According to the 75 percentage points of serum concentration of NT-proBNP, the patients were divided into two groups: low concentration group (n = 123) and high concentration group (n = 41 ). The major adverse cardiac events (MACEs) were followed and compared at one month, six months and twelve months between low group and high group. Results At 1-, 6-, 12-month follow-up, the odds ratio (OR) of death event were 4.1, 5.6 and 4.0 in high group respectively, and the nonfatal heart failure occurred in 4, 4 and 7 patients in high group. Multiple factor logistic regression analysis showed that NT-proBNP was an independent risk factor of the MACEs at different periods including short time, middle time and long time in ACS patients (P＜0. 05). Conclusions NT-proBNP is a strong predictor of the long-term MACEs in patients with early ACS.

OBJECTIVETo construct a GFP/Puro double-labeled lentiviral expression vector for CK8 silencing and assess the effects of CK8 silencing on cell apoptosis.

METHODSThe siRNA sequences of CK8 were inserted into the lentiviral expression vector GV248 and transfected into 293T cells with the packaging plasmids PMD and SPA. The lentivirus was collected at 24 and 36 h post-transfection. Flow cytometry was used to detect the virus titer and the positive cells were selected with puromycin. The knockdown of CK8 was examined by Western blotting. The effect of CK8 down-regulation on cell apoptosis induced by cisplatin was detected with Annexin V/PI staining.

RESULTS AND CONCLUSIONWe successfully constructed CK8 interference lentiviral vector and obtained a stable cell line with CK8 knock-down that was sensitive to cisplatin-induced apoptosis.

Apoptosis ; Cell Line ; Down-Regulation ; Genetic Vectors ; Humans ; Keratin-8 ; genetics ; Lentivirus ; Plasmids ; RNA Interference ; RNA, Small Interfering ; Transfection

Objective To construct a GFP/Puro double-labeled lentiviral expression vector for CK8 silencing and assess the effects of CK8 silencing on cell apoptosis. Methods The siRNA sequences of CK8 were inserted into the lentiviral expression vector GV248 and transfected into 293T cells with the packaging plasmids PMD and SPA. The lentivirus was collected at 24 and 36 h post-transfection. Flow cytometry was used to detect the virus titer and the positive cells were selected with puromycin. The knockdown of CK8 was examined by Western blotting. The effect of CK8 down-regulation on cell apoptosis induced by cisplatin was detected with Annexin V/PI staining. Results and Conclusion We successfully constructed CK8 interference lentiviral vector and obtained a stable cell line with CK8 knock-down that was sensitive to cisplatin-induced apoptosis.

Objective To construct a GFP/Puro double-labeled lentiviral expression vector for CK8 silencing and assess the effects of CK8 silencing on cell apoptosis. Methods The siRNA sequences of CK8 were inserted into the lentiviral expression vector GV248 and transfected into 293T cells with the packaging plasmids PMD and SPA. The lentivirus was collected at 24 and 36 h post-transfection. Flow cytometry was used to detect the virus titer and the positive cells were selected with puromycin. The knockdown of CK8 was examined by Western blotting. The effect of CK8 down-regulation on cell apoptosis induced by cisplatin was detected with Annexin V/PI staining. Results and Conclusion We successfully constructed CK8 interference lentiviral vector and obtained a stable cell line with CK8 knock-down that was sensitive to cisplatin-induced apoptosis.

Objective: To investigate the effects of over expression and low expression of antisense transcripts of circular RNA cerebellar degeneration associated protein 1 (CDR1as) in Balb/C mouse bone marrow mesenchymal stem cells (BMSCs) on factors related to osteogenesis and angiogenesis. Methods: BMSCs were cultured and identified in vitro. The lentiviral (LV) vector containing the overexpressed and silenced circRNA CDR1as genes and the control lentivirus were respectively transfected into mouse BMSCs, and stable cell lines were screened. The cells were divided into the circRNACDR1as over expression group and the over expression control group, and the CircRNACDR1as low expression group and the low expression control group. The components were stained with Alizarin Red S and alkaline phosphatase after 14 and 21 days of osteoinduction; qRT-PCR was used to detect the target genes circRNA CDR1as, osteogenic differentiation markers alkaline phosphatase (ALP), runt- related transcription factor 2 (RUNX2), osteocalcin (OCN), osteopontin (OPN), osterix(Osx), collagen I (COL-1), and the mRNA expression levels of vascular endothelial grown factor (VEGF) and angiogenin-1 (Ang-1). Results: The results of alizarin red staining and alkaline phosphatase staining showed that the extracellular matrix calcium precipitation and ALP staining area of the over expression experimental group was greater than its control group, and those of the low expression experimental group was less than its control group. As the number of days of osteogenic induction increased, the calcium precipitation and ALP staining in each group also increased. RT-PCR results showed that the mRNA expression levels of circRNA CDR1as, ALP, RUNX2, OCN, OPN, OSX, COL-1, VEGF and Ang-1 in the over expression experimental group BMSCs were significantly increased (P<0.001). In the low expression experimental group, the mRNA expression levels of circRNA CDR1as, ALP, RUNX2, OCN, OPN, OSX, COL-1, VEGF and Ang-1 in BMSCs were significantly reduced (P<0.001). Conclusion Over expression of the circRNA CDR1as gene promotes the osteogenic differentiation and angiogenesis of BMSCs. Low expression of the circRNA CDR1as gene inhibits the osteogenic differentiation and angiogenesis of BMSCs.

Objective: To explore the association between single nucleotide polymorphism rs12632942 in SCN10A exon and oxaliplatin-induced peripheral neuropathy (OXLIPN) in colorectal cancer (CRC) patients receiving chemotherapy. Methods:Atotal of 319 cases of blood samples from CRC patients receiving chemotherapy regimen with Oxaliplatin (OXL) were collected from the Second Affiliated Hospital of Guangzhou Medical University, the Second Affiliated Hospital of Nanchang University, and Guangzhou Baiyun District Hospital of Chinese Medicine during January 2011 and June 2013. DNAwas routinely extracted, and PCR amplification was performed to analyze the genotype of rs12632942; and OXLIPN of patients was also evaluated. The association between rs12632942 genotype and OXLIPN was analyzed by χ2 test and multivariate logistic regression model. Results: The genotypes of rs12632942 of 319 CRC patients:AAof 134 cases,AG of 156 cases and GG of 29 cases; and the genotype distribution of rs12632942 was in accordance with Hardy-Weinberg equiliberum (P>0.05). χ2 test showed that rs12632942AG+GG genotype was associated with Ⅱ-Ⅳ degree OXLIPN (P<0.01). Multivariate logistic regression model showed that rs12632942 AG + GG genotype was an independent risk factor for Ⅱ-Ⅳ degree OXLIPN（OR=2.044； 95%CI=1.231-3.392; P<0.01） . Conclusion: Colorectal cancer patients with SCN10A exon polymorphism rs12632942AG + GG genotype were susceptible to Ⅱ-Ⅳ degree OXLIPN.