Objective To study the application values in chest bedside photograph of newborn by CR.Methods 210 CR images of newborn chest bedside photograph were analyzed retrospectively and evaluated.Class A is 201 leaves,the A rate is 95.7%;Class B is 9 leaves,the B rate is 4.3%;Class waste is 0,the waste rate is 0.Results The application value can be improved by appearing digitalization imaging and entering PACS system.Conclusion In spite of the characteristic in the faster diagnosis speed,the lower exposure of X-ray,the higher quality image and succeed rate,it can be given guides for clinic image diagnose.

Objective To investigate the application value of multi-slice spiral CT angiography (MSCTA) in liver cancer patients interventional treatment.Methods Fifty-four liver cancer patients were selected,all patients underwent MSCTA examination,after the image post-processing,and with 17 cases of patients with the same period digital subtraction angiography (DSA) examination results for comparison,in order to analyze the application value of MSCTA in liver cancer patients interventional treatment.Results The patients with liver cancer were seen MSCTA arterial phase varying degrees of tumor staining,2 cases had hepatic arteriovenous fistula.Some patients in the portal vein and hepatic vein were found vein tumor thrombus.MSCTA showed 10 cases of hepatic artery variation,variation rate of 18.5％ (10/54),in line with the DSA rate of 100.0％.MSCTA showed 11 rami liver cancer parasitic artery,1 case of DSA was not found for the right phrenic artery of liver cancer,there was no significant difference in showed liver cancer parasitic artery between the two methods (P ＞ 0.05).Conclusion MSCTA as a minimally invasive diagnostic method of tumor blood supply,can clearly show the origin of the hepatic artery and its branches and walk the line,liver cancer feeding artery,liver cancer parasitic artery with DSA showed highly consistent results,interventional treatment of liver cancer with important guiding significance.

Objective: To compare and analyze the antimicrobial efficacy of three different mechanical preparation techniques in single infected root canals. Methods; Forty-five single root canals with chronic periapical periodontitis were selected. The specimens were divided into three groups randomly, 15 root canals per group. Croup A: preparation with stainless steel K-files (step-back technique), Croup B: preparation with HERO 642 NiTi rotary files (crown-down technique) and Group C: preparation with Mtwo NiTi rotary files ( modified crown-down technique). The sterile normal saline was used as irrigation. Samples were taken before and after canal preparation. The difference of CFU was calculated as well as the bacterial species. Results; All groups were effective to reduce bacteria within the infected root canals greatly(P<0.01). Croup A and Group C were statistically better than Group B(P<0.05). Group A was more effective than Group C but there was no statistically difference between them(P>0.05). Conclusion; Mechanical preparation can greatly reduce the intracanal bacteria, but can not obtain bacteria-free canals. The mechanical preparation must be aided by chemical irrigation to improve the success of root canal therapy.

Objective To study the diagnostic value of susceptibility weighted imaging (SWI) in diffuse axonal injury (DAI) and investigate the relationship between SWI and clinical prognosis. MethodsTwenty patients (15 males and 5 females) with DAI were included in this study. Routine sequences (T1WI, T2WI and FLAIR) and SWI were performed on a 3.0 T MRI scanner. There were 8 cases whose Glasgow score scale (GCS) ranged from 3.0 to 5.0, 4 cases from 6.0 to 8.0 and 8 from 9.0 to 12.0. The interval time between injury and examination were from 3 hours to 20 days. The number and volume of lesions observed on SWI and routine sequence were compared using Mann-Whitney U-test and paired t-test. Pearson correlation was used to analyze the relationship between the number and volume of all lesions and GCS. Results The lesions showed punctate, beaded, patchy and cord-like hypointense signal with various size on SWI (lesion diameter <2.0 cm). Distribution of lesions was multifocal with clear boundary. Routine MRI scan found a total of 78 lesions, while SWI sequence detected 424 lesions. The number of the lesions found on SWI was more than that on conventional MRI (U=-15.447,P＜0.01). The total volume of the lesions measured on routine MRI and SWI were 19 340 mm3 and 38 042 mm3, respectively. The total volume measured on SWI was more than that on routine MR (t=5.870,P＜0.01). The number and volume of all lesions were negatively correlated with GCS (r=-0.802, -0.767, P＜0.01). Conclusion SWI sequence could find more bleeding lesions than the routine MRI sequences. The number and the volume of the lesions were closely related to GCS. SWI showed high value in the diagnosis and prediction of the prognosis of DAI.

Objective To investigate the efficacy and side-effect of docetaxel and cisplatin induction chemotherapy followed by concurrent chemoradiotherapy in locally advanced non-small cell lung cancer (NSCLC).MethodsEighty-six patients with histologically confirmed locally advanced NSCLC were randomized into induction chemotherapy followed by concurrent chemoradiotherapy (ICCRT)arm or concurrent chemoradiotherapy (CCRT) arm. Both arms were treated with intensity-modulated radiation therapy. Induction and concurrent chemotherapy regimen consist of docetaxel and cisplatin. Results Follow-up rate of the whole group is 100％.The response rate in the CCRT arm and ICCRT arm is 70％ and 80％ ( χ2 =1.26,P =0.261 ),respectively; and 1-,2-,3-year survival rate is 65％ and 85％,40％ and 50％,33％ and 44％ (χ2 =3.90,P=0.048),respectively; the median survival time and time to progression is 17.5 and 22.0 months and 14.0 and 19.0 months respectively.Major adverse effects are leukopenia (43 and 32 cases,χ2 =3.48,P =0.062),radiation esophagutis (26 and 20 cases,χ2 =0.12,P =0.730),anemia (26 and 16 cases,χ2 =2.34,P =0.126) and radiation pneumonitis (13 and 9 cases,χ2 =0.37,P =0.541 ).ConclusionsICCRT for locally advanced NSCLC can improve the overall survival rate and time to progression,induction chemotherapy did not increase side-effects.There was no difference in response rate between CCRT and ICCRT arm.

Aim To investigate the mechanism of demethylation on adenosine (ADO )and homocysteine (HCY)-induced apoptosis in human hepatoma HepG2 cells .Methods HepG 2 cells were treated with differ-ent concentrations of ADO (1.0、2.0、4.0 mol · L-1 ) alone or in combination with HCY for 6h,12h and 24h,5-aza-2-deoxycytidine (5-Aza-CdR)as a positive control.Cell viabilities were assessed by CCK8 assay. Cell apoptosis was observed by AnnexinV-FITC/PI staining.The mitochondrial membrane potentials(ΔΨ) were measured by flow cytometry.The mRNA and pro-tein expressions of caspase-3,caspase-8,caspase-9, MDM-2,p53,Cytochrome C,DNMT1,DNMT3a,DN-MT3 b were detected by RT-qPCR and Western blot re-spectively.Results ADO alone or in combination with HCY significantly reduced the viability of HepG2 cells in a dose and time-dependent manner.The apoptotic rates of HepG2 cells after combination treatment with ADO and HCY at 1 .0,2.0,4.0 mol · L-1 for 24 h were (1 8.63 ± 1.25 )%,(29.42 ±2.37 )% and (42.47 ±3.09 )%,compared with the control group (1.30 ±0.82 )%,P <0.01;and the mitochondrial membrane potentials were decreased from 674.15 ± 82.8%(black control group)to (428.38 ±54.5)%, (297.78 ±30.5)%,(74.45 ±5.73)%,P<0.01, respectively.The expressions of caspase-3,caspase-8, caspase-9,MDM-2,p53,Cytochrome C were up-regula-ted and MDM-2 were down-regulated after combination treatment of ADO and HCY.The mRNA expressions of DNMT1 ,DNMT3 a and DNMT3 b were down-regulated after combination treatment with ADO and HCY or 5-Aza-CdR alone.Conclusion Combination treatment of ADO and HCY can cause cellular methylation chan-ges.The effects of demethylation of ADO and HCY may activate p53 gene and mitochondrial pathway, which at last leads to HepG2 cell apoptosis.

[ ABSTRACT] AIM:To investigate the effects of tanshinone IIA ( Tan IIA) on proliferation, apoptosis and its mo-lecular mechanism in human hepatoma HepG2 cells under hypoxic condition.METHODS:Hypoxia model was established by treatment with cobalt chloride ( CoCl2 ) .The cells were divided into normoxia control group, hypoxia control group and hypoxia combined at different concentrations of Tan IIA groups.After HepG2 cells were incubated with different concentra-tions of Tan IIA (0.5, 1.0, 2.0, 5.0 and 10.0 mg/L) for 24 h, 48 h and 72 h under hypoxic condition, the cell prolifer-ation was determined by MTT assay.After Tan IIA was added to the media at different concentrations for 24 h and 48 h, the apoptotic cells were observed by Hoechst 33258 staining.The protein levels of hypoxia-inducible factor 1 alpha (HIF-1α) , vascular endothelial growth factor ( VEGF) and wild-type P53 were detected by Western blotting after cultured with different concentrations of Tan IIA for 48 h.RESULTS:Tan IIA inhibited the proliferation of HepG2 cells in a dose-and time-dependent manner.Tan IIA induced the typical morphology of apoptotic cells and increased the apoptotic rate in a dose-and time-dependent manner after treatment with 1.0 mg/L~5.0 mg/L for 24 h and 48 h under hypoxic condition. The protein levels of HIF-1αand VEGF were weakly expressed in HepG2 cells under normoxia but up-regulated after incu-bated under hypoxia for 48 h.The protein expression of HIF-1αand VEGF were decreased with the increase in the concen-tration of Tan IIA under hypoxia.The protein expression of wild-type P53 was increased with the increase in the concentra-tions of Tan IIA under hypoxia.CONCLUSION:Tan IIA significantly inhibits the proliferation and induces the apoptosis of human hepatoma HepG2 cells under hypoxia, which may be related to the down-regulation of HIF-1αand VEGF and up-regulation of wild-type P53.

Objective To evaluate the diagnostic efficacy of magnetic resonance(MR)-guided prostate biopsy based on abnormal diffusion weighted imaging for prostate cancer in elder men.Methods From July 2014 to Dec 2016,56 patients (age≥ 65 years) with diffusion weighted imaging (DWI)abnormalities undergoing MR-guided prostate biopsy were retrospectively evaluated.According to pathological diagnosis,patients were divided into prostate cancer and non-prostate cancer groups.The clinical data of two groups were analyzed.The correlation of Gleason score,prostate specific antigen(PSA),and the location and number of biopsy were compared.Results Among 56 cases,32 (57.1％)were diagnosed as prostate cancer,and 24 (42.9％)as chronic prostatitis and prostatic hyperplasia (non-prostate cancer).There were statistically significant differences between prostate cancer and non-prostate cancer in age[(73.0±5.7)vs.(70.1±4.3)year]and PSA[(9.3±6.0)μg/L vs.(6.0± 3.9)μg/L] (both P＜0.05),and no statistical differences in biopsy location and biopsy number(t =2.08,2.37,P＞ 0.05).Gleason score had no correlation with PSA level and biopsy location and biopsy number(r=0.189、-0.183、0.082,P＞0.05).Conclusions MR-guided prostate biopsy based on MR-DWI has some merits,such as accurate positioning,fewer numbers of biopsy,and lower false-negative rate.

[Objective]To investigate the protective effect and mechanism of Ganoderma lucidum extract(GLE)on liver cirrhosis in mice.[Methods]Ten male C57BL/6 mice were randomly selected as control group,the remaining forty mice were intraperitoneally injected with carbon tetrachloride olive oil suspension to induce liver cirrhosis model.They were randomly divided into model group and GLE low(50 mg/kg·d),medium(100 mg/kg·d)and high(200 mg/kg·d)dose groups,while the control group and model group received 0.9％sodium chloride solution gastric irrigation,and the control group mice were given the same volume of olive oil solution twice a week.Liver index was calculated.The activities of alanine aminotransferase(ALT),aspartate transaminase(AST)and the levels of total cholesterol(TC),total bilirubin(TB)and creatinine(Cr)in serum of mice were detected by automatic biochemical analyzer.Hematoxylin eosin(HE)staining was used to observe the histopathological changes of liver,and Masson staining was used to observe the degree of liver fibrosis.Terminal-deoxynucleotidyl transferase mediated dUTP nick end labeling(TUNEL)staining was used to observe the apoptosis of hepatocytes.The levels of tumor necrosis factor-α(TNF-α),interleukin-1β(IL-1β),IL-6,malondialdehyde(MDA)and activity of superoxide dismutase(SOD)and glutathione peroxidase(GSH-Px)in serum were detected by enzyme linked immunosorbent assay(ELISA).The relative expression of nuclear factor E2 related factor 2(Nrf2)and nuclear Nrf2,heme oxygenase-1(HO-1)and NAD(P)H:quinone oxidoreductase 1(NQO1),α-smooth muscle actin(α-SMA),Collagen Ⅰ and E-cadherin protein in liver tissue were detected by Western blot.[Results]Compared with control group,the liver had significant damage,the liver index,serum ALT,AST activities,TC,TB and Cr levels,liver fibrosis degree,hepatocyte apoptosis index,the levels of serum TNF-α,IL-1 β,IL-6 and MDA,the relative expression of α-SMA and Collagen I protein increased(P＜0.05),while the activity levels of serum SOD and GSH-Px,and the relative expression of total Nrf2 and nuclear Nrf2,HO-1,NQO1 and E-cadherin protein in liver tissue decreased in model group(P＜0.05).Compared with model group,liver injury gradually reduced,the liver index,serum ALT,AST activities,TC,TB and Cr levels,liver fibrosis degree,hepatocyte apoptosis index,the levels of serum TNF-α,IL-1β,IL-6,MDA and the relative expression of α-SMA,Collagen I protein decreased(P＜0.05),while the activity levels of serum SOD and GSH-Px,and the relative expression of Nrf2 and nuclear Nrf2,HO-1,NQO1 and E-cadherin protein in liver tissue increased in GLE low,medium and high dose groups(P＜0.05).[Conclusion]GLE can alleviate the histopathological damage and improve liver function in cirrhotic mice.This may be related to the decreased level of oxidative stress and inflammatory reaction after activation of Nrf2/ARE signaling pathway,which may interfere with liver fibrosis.

The aim of this study was to investigate the effect of transmembrane 9 superfamily protein member 2 (TM9SF2) in proliferation and migration of triple negative breast cancer cell line MDA-MB-231.The expression of TM9SF2 in triple negative breast cancer cell line MDA-MB-231 and nontumorigenic mammary epithelial cell line MCF-10A were measured by Western blot. MDA-MB-231 cells were treated with siRNA-TM9SF2 to knock-down the expression of TM9SF2. The effect of silencing TM9SF2 was measured with Western blot.The proliferation of cells was tested by MTS,and the migration was measured with Transwell and wound-healing assay.Proteins related to proliferation (PI3K,AKT,SRC and ERK) and migration (Snail,Slug and N-cadherin) were measured with Western blot.Protein expressions of TM9SF2 was better improved in triple negative breast cancer MDA-MB-231 cell line than MCF-10A.Compared with the control group, the siRNA-TM9SF2 infected group had lower expressions of PI3K, Snail, Slug and N-cadherin, and at the same time phosphorylation of AKT was decreased. The results suggest TM9SF2 can promote the proliferation and metastasis of triple negative breast cancer MDA-MB-231 cell line.