Objective To explore the organic and biological contamination in water body of Jin River of Tianjin. Methods Three sections were set up in the upper reaches, middle reaches and lower reaches of Jin River respectively. 6 sampling points were set up in each section of the river. The levels of BOD_5~(20), total count of bacteria, fecal coliform count of the river water were determined. The obtained data were assessed based on GB3838-2002 the National Criterion for Environmental Quality of Surface Water. Results The levels of BOD_5~(20) of river water samples collected from each section of Jin River exceeded the standard ruled by GB3838-2002 Grade V. The levels of fecal coliform count of water samples were between the national standards of Grade Ⅲ and Ⅴ of GB3838-2002. The water samples collected from different sections of Jin River water showed no significant differences in the levels of BOD_5~(20) and fecal coliform count, and significant difference in total count of bacteria. Significantly higher levels of total count of bacteria were observed in water samples collected from upper reaches of Jin River compared with those collected from lower reaches (P

Objective:To investigate the interfering effect of siRNA on the expression of VEGF in Hela cells.Methods:Three pairs of siRNA were designed according to the 1-5 extrons sequence of VEGF and synthesized by T7 RNA ploymerase transcription in vitro. To evaluate the inhibition activity of siRNA, Hela cells were transfected via siPORT Lipid. The interfering effect of siRNAs in hRPE cells was examined by semi-quantitative RT-PCR and immunofluorescence technique.Results:The results showed that the three pairs of siRNA could effectively inhibit gene expression of VEGF in Hela cells with the rates of 88.7%, 94.2% and 80.3%. But the 1-base mismatched siRNA and ssRNA(+) didn′t show significant interfering effect. Furthermore, it was found that siRNAs had a dose dependent inhibitory effect(5-10 pmol).Conclusion:The siRNAs synthesized by T7 RNA ploymerase in vitro could effectively and specifically interfere the expression of VEGF in Hela cells, providing a novel approach for gene therapy of tumor.

Objective To observe the clinical efficacy of treatment of diabetic nephropathy with Shuxuening injection combined with benazepril.Methods 60 cases from January 2014 to January 2015,were randomly divided into observation group and control group of 30 patients.the control group were given benazepril treatment,observation group were based on Shuxuening injection treatment,patients were followed up and record changes related indicators.Results The urinary β2-MG and hs-CRP were after treatment(0.38±0.08,6.29±1.40)mg/L,than the control group(0.48±0.10,7.74±1.36)mg/L,and the difference was significant sex(P<0.05); after treatment observation group 24H urine protein quantitative detection of(0.69±0.50)g/24h,than the control group(1.04±0.63)g/24h,and the difference was statistically significant(P<0.05); After the observation group patients,low-density lipoprotein,serum creatinine value were(359.2±50.3mg/L,2.40±0.63mmol/L,95.6±22.3mol/L),were better than the control group(379.8±48.3mg/L,3.44±0.76mmol/L,108.5±34.2mol/L),and the difference was statistically significant(P<0.05); observation group total effective rate was 90.0％,higher than 73.0 percent,and the difference was statistically significant(P<0.05).Conclusion Shuxuening injection combined with benazepril clinical treatment of diabetic nephropathy exact,no significant side effects,is worthy of further research and application.

Background and purpose:Hepatocellular carcinoma (HCC) is a common malignant tumor of the digestive system in our country, with high fatality, development of HCC and the machine system research and treatment is a primary issue in current study of HCC. To explore the expression ofβ-catenin at different stages in the process of hepatocellular carcinoma carcinogenisis for SD rats induced by chemicals. Methods: The experimental group included 48 male SD rats mice with primary liver cancer induced by diethylnirtosamine/carbon tetrachloride/Ethanol, while 48 normal male SD rats mice were used as the control group. The rats were killed every 3 weeks to collect the specimens and observe the pathological changes by HE staining. The changes ofβ-catenin protein expressions were detected by immunohistochemistry and Western blot respectively. Results:SD rats liver cancer was conifrmed by HE staining after 21 weeks DEN/CCl4/Ethanol induction. Immunohistochemistry showed thatβ-catenin expression level was obviously higher in the experimental group(0.27±0.01) than that of the control group(0.21±0.02) after 3 weeks induction(P<0.05). As time progresses, the expression levels ofβ-catenin kept on rising, and at the 18th(0.30±0.02) and 21th weeks(0.32±0.02), it was significantly higher than that of the earlier liver tissues of the experimental group(P<0.05), Western blot consistent with immunohistochemical results. Conclusion:β-catenin protein expression is different in the normal liver tissue, cirrhosis, liver cancer,β-catenin and the occurrence of liver carcinoma development had close relationship.β-catenin protein in the cell with further accumulation, may active a series of target gene, leading to the formation of liver cancer..

AIM: To study the expression of MDM2 and muta nt-type P53 proteins in primary hepatocellular carcinoma(HCC). METHODS: Using immunohistochemical staining method(SP),the expression of mutant-t ype P53 and MDM2 proteins was examined in 55 cases of HCC,23 cases of correspond ing paracancerous tissues and 10 cases of normal hepatic tissues. RESULT S: The frequencies of MDM2 and P53 positive expression in HCC were 17/55 (30 9%) and 23/55 (41 8%), respectively. There was both positive expression of MDM2 and mutant-type P53 in 11 cases (20%) with HCC. Expression of MDM2 showed a significantly positive correlation with expression of mutant-type P53 (r=0 310,P

Objective To evaluate the effect of a nurse-led case management intervention on arm function and uncertainty for women with breast cancer.Methods 90 women with breast cancer were divided into the intervention group and the control group according to their nurses,with 45 patients in each group.All participants were followed six months after surgery.The intervention group attended a 6-month nurse-led case management program,while the control group received the routine care and follow-up only.Questionnaires on arm function and uncertainty were administered 1 month,3 months and 6months after the surgery respectively.Score changes were compared by repeated-measure ANOVA and MANOVA.Results The arm function of the intervention group was better than the control group,except for the 10th day after the operation,there were significant differences at other three time points.The disease uncertainty level of the intervention group was better than that of the control group,except for the dimension of unpredictability,there were evident differences in other dimensions at other three time points.Conclusions The nurse-led case management intervention could improve arm function recovery and decrease the uncertainty to disease of breast cancer survivors.

OBJECTIVE:To investigate the effects of hyperbaric oxygen combined with flupentixol and melitracen on depres-sion improvement,extremity motor function and ability of daily living and activity in patients with post-stroke depression (PSD). METHODS:60 PSD patients were divided into control group and observation group according to random number table,with 30 cases in each group. Both groups received routine clinical treatment,comprehensive rehabilitation therapy and psychotherapy. The control group was additionally given Flupentixol and melitracen tablets,orally,one tablet each time,in the morning;3 days later, one tablet each time,in the morning and noon,for 4 weeks. Other anti-depressive agents were not given during treatment. Observa-tion group was additionally given hyperbaric oxygen,0.12 MPa,for 90 min,qd,5 times a week,for 4 weeks,on the basis of control group. Depression degree [Hamilton depression scale (HAMD) and Self-rating depression scale(SDS)],extremity motor function [Fugl-Mayer motor function assessment (FMA)] and ability of daily living and activity [modified Barthel index (MBI)] were scored in 2 groups before and after treatment,and ADR was observed. RESULTS:After 4 weeks of treatment,HAMD and SDS of 2 groups were decreased significantly compared to before treatment,while FMA and MBI were increased significantly;the improvement of observation group was significantly better than that of control group,with statistical significance(P<0.05). No ob-vious ADR was found in 2 groups. CONCLUSIONS:Hyperbaric oxygen combined with flupentixol and melitracen can effectively improve PSD,relieve negative emotion and improve extremity motor function and ability of daily living and activity.

AIM: To observe the effect of partial liquid ventilation with perfluorocarbon on gas exchange, hemodynamics and lung histological change in the piglets with surfactant depletion-induced acute lung injury. METHODS: 12 piglets were treated by lung lavage to a partial pressure of oxygen in arterial blood (PaO 2) below 100 mmHg for one hour and randomly divided into gas ventilation group (control group) and partial liquid ventilation (PLV) group, in PLV group, piglets received PFC (FC3280) intratracheally at doses of 15 mL/kg. The parameters of gas exchange and hemodynamics were measured before lung lavage, after lung lavage when the acute lung injury (ALI) was established, and 1 hour, 2 hours after ALI. Animals underwent euthanasia at the end of the study, lung histologic analysis followed. RESULTS: Surfactant depletion by lung lavage induced a stable acute lung injury.Gas exchange increased markedly in the animals that underwent PLV, less hemodynamic damage was observed in PLV group compared with the animals in GV group. Lung histologic analysis demonstrated a less lung damage, including atelectasis, neutrophil excudation, intra-alveolar hemorrhage and interstitial edema in PLV group compared with control group. CONCLUSION: In piglets with surfactant depletion-induced acute lung injury, partial liquid ventilation with perfluorocarbon can improve the gas exchange with less adverse hemodynamic effect and less lung injury compared with conventional gas ventilation.

Objective Compared with haloperidol treatment,naloxone and naloxone combined haloperidol treatments were assessed in their efficacy and safety for excited type delirium in elderly.Methods The elderly patients with delirium were divided into haloperidol treatment (H),naloxone treatment (N) and combined treatment (C) in a prospective randomized controlled design.Delirium score scale (DSS) was used before and after treatments respectively.Clinical global impression scale-severity of illness (CGI-SI) score was evaluated daily to assess the onset time and improvement of delirium.Agitation-calmness evaluation scale (ACES) observed calmness effect in agitated patients before and after every medication intervention.Treatment emergent symptom scale (TESS) assessed side effects of all medications.Results The duration of three groups(H(4.0 ±2.9)d,N(4.2± 3.5) d,C (3.2 ± 3.2) d) had no significant difference (P ＞ 0.05) by multiple comparison.Compared the onset time of three groups (H (2.4 ± 1.6) d,N (2.4 ± 1.4) d,C (1.3 ± 0.9) d),the combined group was faster than the other two groups (all P ＜ 0.05),no significant difference between the two groups(P ＞ 0.05).DSS scores had no significant differences (P＞ 0.05) in three groups before treatment,so did CGI-SI scores.In the end,DSS scores were(H:18.8 ± 11.5,N:27.7 ± 7.2,C:29.5 ± 5.6) respectively.Statistically naloxone group and combined group with no significant difference (P ＞ 0.05),were better than the haloperidol group (all P ＜ 0.01) in recovery.At the same time CGI-SI scores were (H:3.3 ± 1.5,N:2.5 ± 1.5,C:1.8 ± 0.9) respectively.Statistically combined group was better than the haloperidol group (P ＜ 0.01),and no significant difference with naloxone group (P ＞ 0.05).Three groups had no significant difference in ACES scores (P ＞ 0.05) before and after medication interventions(H:5.9 ± 1.6,N:6.2 ± 1.8,C:6.4 ± 1.6) (P ＞ 0.05).Haloperidol group had 4 cases of extrapyramidal symptom evaluated by TESS and combined group had 2 cases.Two groups had no significant difference (Chisquare test P ＞ 0.05) in extrapyramidal symptom incidence.The naloxone group showed no side effects.Conclusion Naloxone combined haloperidol is slight better than naloxone,more than haloperidol in terms of efficacy.Haloperidol equally with combined medication showed more side effects than naloxone.