Objective To observe the growth characters of upper gastrointectinal tract leiomyoma. Methods Using endoscopic ultrasonography to detect leiomyoma of upper gastrointestinal tract leiomyoma in 18 cases once every 6 months on follow-up , and to measure the longest diameter ( A mm) and calculate its growth rate per month. Results In this series,the majority of cases have the leiomyoma of longest diameter(A) 10～20mm. Their growth rates in A≤10mm, 10mm

Objective To evaluate the prognostic role of bispectral index (BIS) monitoring in patients after cardiopulmonary resuscitation (CPR) in the intensive care unit (ICU).Methods Thirtythree adult patients after CPR were enrolled and divided into survived group and non - survived group as per 7-day survival.During their stay in the ICU,BIS and SaO2 (saturation of artery oxygen) levels of all the patients were continuously monitored.The neurological status of the patients was measured with Glasgow coma scale (GCS).Acute physiology and chronic health evaluation Ⅱ ( APACHE Ⅱ ) was used to evaluate the patient condition. SjO2 (saturation of jugular bulb venous oxygen ) levels of 23 patients were continuously monitored and then the difference in values between SaO2 and SjO2 was calculated to show oxygen metabolism in the brain. The studied variables were compared between the two groups. The correlations between BIS values and GCS scores,and between BIS and APACHE Ⅱ scores were respectively analyzed. Results The BIS values and difference in values between the SaO2 and SjO2 were significantly higher in the patients of survived group than those in the patients of non-survived group (P ＜0.01 ).There were positive correlation between BIS and GCS (r =0.821,P ＜ 0.01 ) and as well as positive correlation between BIS and APACHE- Ⅱ ( r =0.434,P ＜ 0.05 ).Conclusions The BIS may be useful to predict the post - resuscitative outcome of patients after cardiopulmonary resuscitation.

OBJECTIVEThis study aims to determine the effect of fluoride concentration on the corrosion behavior of cobalt-chromium alloy fabricated by two different technology processes in a simulated oral environment.

METHODSA total of 15 specimens were employed with selective laser melting (SLM) and another 15 for traditional casting (Cast) in cobalt-chromium alloy powders and blocks with the same material composition. The corrosion behavior of the specimens was studied by potentiodynamic polarization test under different oral environments with varying solubilities of fluorine (0, 0.05%, and 0.20% for each) in acid artificial saliva (pH = 5.0). The specimens were soaked in fluorine for 24 h, and the surface microstructure was observed under a field emission scanning electron microscope after immersing the specimens in the test solution at constant temperature.

RESULTSThe corrosion potential (Ecorr) value of the cobalt-chromium alloy cast decreased with increasing fluoride concentration in acidic artificial saliva. The Ecorr, Icorr, and Rp values of the cobalt-chromium alloy fabricated by two different technology processes changed significantly when the fluoride concentration was 0.20% (P < 0.05). The Ecorr, Icorr, and Rp values of the cobalt-chromium alloy fabricated by two different technology processes exhibited a statistically significant difference. The Icorr value of the cobalt-chromium alloy cast was higher than that in the SLM group cobalt-chromium alloy when the fluoride concentration was 0.20% (P < 0.05). The Ecorr, tRp alues of the cobalt-chromium alloy cast were lower htan those of the SLM group cobalt-chromium alloy when the fluoride concentration was 0.20% (P< 0 .05).

CONCLUSIONFluoride ions adversely affected the corrosion resistance of the cobalt-chromium alloy fabricated by two different technology processes. The corrosion resistance of the cobalt-chromium alloy cast was worse than that of the SLM group cobalt-chromium alloy when the fluoride concentration was 0.20%.

Objective To investigate the inhibitory effect of Rhodiola total flavonoids on transforming growth factor (TGF)-β1-induced proliferation of cardiac fibroblasts (CFB) in the rats, and to explore its mechanisms of improving myocardial fibrosis.Methods 5 μg·L-1 TGF-β1 was used to induce the proliferation of CFB to build the cell models of myocardial fibrosis.The cultured CFB were divided into control group,model group,and low, medium,high doses (25,50 and 100 mg· L-1 )of Rhodiola total flavonoids groups.The cells were treated for 48 h,the vitalities of cells were detected by MTT,the levels of collagen proteinⅠ (ColⅠ)and collagen proteinⅢ(Col Ⅲ)in supernatant were measured by ELISA,and the activities of total superoxide dismutase (T-SOD)and glutathione peroxidase (GSH-Px)were detected,the levels of malondialdehyde (MDA)and glutathione (GSH) were also measured.Results The MTT results indicated that compared with control group,the cell vitality in model group was significantly increased (P < 0.01 ).compared with model group,the cell vitalities of CFB in Rhodiola total flavonoids groups were significantly decreased (P < 0.05 ). Compared with control group, the T-SOD activity in model group was decreased, while the MDA level was significantly increased (P <0.05);compared with model group,the T-SOD activities in 50 and 100 mg· L-1 Rhodiola total flavonoids groups were increased (P <0.01);the MDA levels in 25 and 50 mg· L-1 groups were decreased significantly (P < 0.05). Compared with control group,the GSH-Px activity and GSH level in model group were significantly decreased (P <0.01).Compared with model group,the GSH-Px activities and GSH levels in Rhodiola total flavonoids groups were increased (P <0.05).Compared with control group,the ColⅠand Col Ⅲ levels in model group were significantly increased (P <0.01);compared with model group,the ColⅠand Col Ⅲ levels in Rhodiola total flavonoids groups were significantly decreased (P <0.05).Conclusion Rhodiola total flavonoids can inhibit the proliferation of rat CFB.The development of myocardial fibrosis may be inhibited by Rhodiola total flavonoids through anti-oxidative stress pathway.

Background:Dysregulation of microRNA expression is involved in the carcinogenesis of many tumors,expression of miR-504 has been observed in many tumors,but its expression in primary hepatocellular carcinoma(HCC)has not been reported. Aims:To explore the expression and clinical significance of miR-504 in HCC tissues and cells. Methods:Tumor and para-cancerous tissue in 85 HCC patients were collected. Five liver cancer cell lines and immortalized liver cell line were conventionally cultured. Effect of miR-504 expression on HepG2 cells proliferation was determined by CCK8 assay. The expression of miR-504 was determined by real time fluorescent quantitative PCR. Relationships between expression of miR-504 and clinicopathological features and prognosis of HCC patients were analyzed. Results:Compared with normal liver cells,expression of miR-504 was significantly downregulated in five liver cancer cells(P < 0. 05). Up-regulation of miR-504 inhibited proliferation of HepG2 cells,and down-regulation of miR-504 promoted proliferation of HepG2 cells. miR-504 expression in tumor tissue was significantly decreased than that in corresponding para-cancerous tissue. Expression of miR-504 was correlated with tumor differentiation(P = 0. 002),TNM stage(P = 0. 021),alpha fetoprotein(P = 0. 012)and portal vein tumor thrombus(P = 0. 003),but not with gender,age,tumor size and tumor number. Survival in HCC patients with lower miR-504 expression was significantly shorter than that in patients with high expression(P < 0. 05). Conclusions:Expression of miR-504 is downregulated in HCC,and is correlated with the prognosis of patients,suggesting that miR-504 can be used as an independent predictor for prognosis of HCC patients.

Objective To evluate the efficacy of ureteroscope and holmium laser in the treatment of ureteral stones. Methods 48 cases of ureteral stones were ureteroscopicaly treated by the use of the above mentioned lithotripter from February 2001 to August 2001. Results 98%(47/48)of the stones being expelled within 5 days after the double J tube were pulled out.No complicaticons occurred. Conclusions Treatment of the ureteral stones by the use of ureteroscope and holmium laser is safe and effective.

To increase the biotransfomation efficiency from the orotic acid to the uridine 5'-monophosphate(UMP),URA5 gene encoding orotate phosphoribosytransferase was amplified from Saccharomyces cerevisiae BY4742 by PCR,then it was inserted into the expression vector pYX212(contained orotidine monophosphate decarboxylase gene URA3)and the pYX212-URA5 was transformed into Saccharomyces cerevisiae BJX12 by electroporation.The recombinant strain was elementarily used to convert orotic acid to UMP.The results showed that pYX212-URA5/BJX12 could accumulate 7mmol/L UMP from 32mmol/L orotic acid in 26h,significantly higher than both control groups pYX212/BJX12(2.7mmol/L) and BJX12(2.4 mmol/L).

Objective To investigate the clinical therapeutic effect of Xuebijing injection for treatment of patients with diabetic nephropathy(DN)and its mechanism. Methods 60 DN patients were randomly divided into Xuebijing group and control group(each,30 cases). The patients in both groups received western conventional treatment,and the patients in Xuebijing group received additionally Xuebijing injection intra-venous injection once a day for 14 days. The fasting blood glucose(FBG),glycosylated hemoglobin(HbA1c),urinary albumin excretion rate(AER),blood urea nitrogen(BUN),serum creatinine(SCr),hematocrit(HCT),fibrinogen(Fg),whole blood viscosity,total cholesterol(TC),triglyceride(TG),low density lipoprotein cholesterol(LDL-C),high density lipoprotein cholesterol(HDL-C)and interleukin -6(IL-6),tumor necrosis factor-α(TNF-α)and urine β2-microglobulin(β2-MG)levels before and after treatment were detected,and the curative effect was also observed in both groups. Results In the control group blood FBG,BUN,SCr,TC,IL-6 and TNF-αafter treatment were significantly decreased and HDL-C significantly increased compared with those before treatment(all P<0.05). Compared with those before treatment,in Xuebijing group after Xuebijing therapy,blood FBG,β2-MG,AER,BUN, SCr,TC,TG,HCT,blood viscosity,IL-6 and TNF-αwere significantly decreased,and HDL-C was obviously increased,but there were no significant differences in HbA1c,LDL-C and Fg before and after treatment. The above indexes were changed significantly in Xuebijing group compared with those in control group〔FBG(μg/L):6.98±1.14 vs. 9.73±1.62,β2-MG(μg/L):32.1±10.9 vs. 57.2±15.1,AER(μg/min):86.0±28.1 vs. 152.0±51.6,BUN (mmol/L):12.4±8.1 vs. 19.5±8.9,SCr(μmol/L):301.2±151.9 vs. 371.3±168.6,HCT:0.283±0.075 vs. 0.351±0.059,TC(mmol/L):3.4±1.8 vs. 4.1±1.5,TG(mmol/L):3.4±1.5 vs. 3.6±1.7,HDL-C(mmol/L):1.90±0.75 vs. 1.50±0.25, IL-6 (ng/L):8.96±2.07 vs. 12.75±2.47, TNF-α(pmol/L):17.85±4.75 vs. 20.87±4.90,P<0.05 or P<0.01〕. The total efficiency in Xuebijing group was significantly higher than that in control group(83.3%vs. 36.7%,P<0.01). Conclusion Xuebijing injection has significant protective effects on patients with DN,and the mechanism might be associated with increasing tissue perfusion and inhibiting excessive inflammatory cytokines release.

Objective To evaluate the clinical application value of MR/DSA- 3D fusion software. Method Fusion imaging was made with fusion software after performing MR and DSA examinations on nine cerebrovascular diseases sufferers. Results The fusion image of six sufferers could display the exact part having pathological changes to cerebral vessel and specify the relationship between the tissue of pathological changes and cerebral vessel, offering a scientific basis for clinics and the fusion images of three sufferers were not ideal. Conclusion MRDSA-3D fusion software can provide image with high diagnostic accuracy and treatment precision.

Objective To evaluate the value of Bolus chase technology for angiography of lower extremity. Methods 12 cases with diabetes foot or leg pain were examined with Bolus chase technology. Results Low extremity artery thrombosis was found in 12 cases. Conclusion Bolus chase technology is better than standard DSA in the display of lower extremity vessel.