Objective: To elucidate the relationship between Notch3 expression and chemosensitivity of human colon carcinoma cell line SW620 to topotecan. Methods: Notch3 siRNA was transfected into SW620 cells, and the expression of Notch3 in SW620 cells was examined by Western blotting. After transfected with Notch3 siRNA for different time peri-ods, SW620 cells were further treated with topotecan, and the proliferation of SW620 cells was detected by MTT assay; the apoptosis of SW620 cells was detected by Hoechst 33342 staining and flow cytometry. Caspase-3 activation in SW620 cells was examined by caspase-3 activation kit. Results: Notch3 siRNA transfection remarkably inhibited Notch3 protein expression in SW620 cells. The IC_(50) of topotecan in Notch3 siRNA-transfected group was significantly decreased compared with that in the Ctrl siRNA group (P <0.05). Silence of Notch3 expression in SW620 cells by Notch3 siRNA remarkably promoted apoptosis (P < 0.05) and caspase-3 activation (P < 0.05) of SW620 cells induced by topotecan. Conclusion: Notch3 down-regulation by siRNA in SW620 cells can enhance the chemosensitivity cells to topotecan.

Primary biliary cirrhosis (PBC)is an autoimmune disease.Ursodeoxycholic acid (UDCA)is the only safe and effective drug for the treatment of PBC,as proved by randomized controlled clinical trials,so it is advocated as first-line therapy.Alternative therapies are urgently needed for patients with poor response to UDCA.In addition to the efficacy of UDCA,the classification of alternative and adjuvant therapies for UDCA nonresponders and the latest research progress in these therapies are reviewed;the efficacy of existing drugs and treat-ment prospects are evaluated,but more long-term clinical studies are needed to confirm the efficacy of immunosuppressants such as budes-onide and etanercept and other drugs.A number of novel molecular therapies for PBC are also undergoing clinical trials.There is currently no consensus on the medical treatment for patients with poor response to UDCA.Although studies have shown that some drugs can improve liver function and liver biochemistries,there is no definitive evidence that they improve long-term outcome.

Objective:To construct pEGFP-C1-Smad4 expression vector and to observe the influence of Smad4 over-expression on the proliferation of human gastric cancer SGC7901 cells and its relationship with nuclear factor kappa B (NF-?B). Methods:Recombinant expression vector pEGFP-C1-Smad4 was constructed and was used to transfect human gastric cancer SGC7901 cells. EGFP expression in transfected cells was detected by fluoroscopy. Smad4 and NF-?B expression in transfectant was examined by Western blotting. Effect of Smad4 over-expression on activation of NF-?B and proliferation of transfected SGC7901 cells were examined by electrophoretic mobility shift assay (EMSA) and MTT assay,respectively. Results:Expression of EGFP in transfected SGC7901 cells was observed under fluorescence microscope. Smad4 was over-expressed in transfected SGC7901 cells,accompanied by down-regulation of NF-?B p65 expression in the tranfectants. EMSA and MTT demonstrated that Smad4 over-expression significantly inhibited the activation of NF-?B and the proliferation of SGC7901 cells (P

Objective To explore the regulatory function of over-expression of NOTCH-1 in TNF?-induced apoptosis of gastric carcinoma carcinoma BGC-823 cells.Methods BGC-823 cells were infected with retrovirus recombined with intracellular domain of NOTCH-1.The cell clones,into which objective genes had been transfected,were obtained after screening with G-418.Before and after incubation with TNF?,MTT assay,flow cytometry,Western blot and EMSA were used to detect cell growth,apoptosis,expressions of NOTCH-1,NF-?B and caspase-3 activity.Results There was stronger expression of NOTCH-1 and its target gene HES-1 in the cells transfected with NOTCH-1 gene than that of control.After TNF? treatment,the rates of killing and apoptosis in NOTCH-1-transfected cells were all lower than those in control cells.Moreover,we showed over-expression of NOTCH-1 suppressed caspase-3 activation induced by TNF?.However,TNF?-induced activation of NF-?B was not affected by over-expression of NOTCH-1.Conclusion Over-expression of NOTCH-1 significantly protects BGC-823 cells from apoptosis and growth suppression induced by TNF?.This effect is mediated,at least in part,through inhibition of caspase-3 activation independent of NF-?B.

Objective To investigate the intervention of Chinese herb Shengjiang San(SJS)for the imbal-ances of serum Th1/Th2 cells and related regulatory factors in sepsis patients. Methods Fifty-five sepsis patients were randomly divided into two groups:conventional treatment group of 27 cases and SJS group of 28 cases. Nine cases of healthy volunteers were enrolled as control group in the study. Cases of conventional group were treated with western medicine only and cases of SJS group were treated with both western medicine and Chinese herb SJS (100 mL twice one day). The therapy course of both groups was 3 days. Score of Chinese medical syndromes ,se-rum level of leukocyte count,C reactive protein(CRP)and procalcitonin(PCT),serum T-bet,GATA-3,Th1&Th2 cells in the proportion of whole CD4+Th cells and Th1/Th2 ratio were compared respectively in each group be-fore and after treatment. Results There were significant differences between SJS group and conventional group in score of Chinese medical syndromes,serum level of leukocyte count,T-bet,GATA-3,Th1&Th2 cells in the pro-portion of whole CD4+Th cells and Th1/Th2 ratio(P<0.05 or P<0.01). There were no significant differences be-tween the two groups in serum level of CRP,PCT and GATA3. Compared with control group,there were signifi-cant differences in all indicators except GATA3 of the two groups(P<0.01). Conclusion Chinese herb Shengji-ang San has an effective benefits to Chinese medical syndromes,inflammatory reaction,the imbalance of serum Th1/T2 and related regulatory factors(T-bet&GATA-3)in sepsis patients.

Objective:To analyze the clinical applicability of the sixth edition of nursing measures classification in children's general surgery, to provide a basis for standardizing clinical nursing terms and to promote the clinical use of standardized terminology of nursing measures.Methods:The research method of this study was mapping method. The electronic nursing records of the general surgery of Shanghai Children′s Medical Center Affiliated to Shanghai Jiaotong University School of Medicine from October 1st to December 31st, 2018, including the records of care records for free entry and the records of nursing measures related to medical orders were selected. The degree of matching between electronic care records and classification of nursing measures (sixth edition of nursing measures classification) was compared with conceptual consistency. Difficulties and time-consuming analysis of the characteristics of the standardized care measures obtained by matching.Results:A total of 4 560 independent electronic care records mapped 86 treatments in seven areas. Among them, 98.84% (4 507/4 560) of the nursing records were completely matched with the nursing measures, 0.83% (38/4 560) of the nursing records were partially matched with the nursing measures, and 0.33% (15/4 560) of the nursing records did not match the nursing measures. Difficulty and time-consuming were expressed as standard deviation, which were 2.20±0.45 and 2.03±1.25 respectively.Conclusions:The classification of nursing measures can be used to describe the daily behavioral activities of the children's general surgery nurses, and can also solve the standardization problem of the nursing records in the presentation, and is suitable as a standardized nursing language for the nursing records of children's general surgery.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Isocitrate Dehydrogenase ; genetics ; Leukemia, Myeloid, Acute ; genetics ; Male ; Middle Aged ; Mutation ; Polymerase Chain Reaction ; methods ; Young Adult

To investigate the damage on macrophage of the commercial peritoneal dialysis solution(CDS). Methods Macrophages were seperated from peritoneal fluid remained overnight of seven CAPD patients and TNF-a level of supernatant was determined and compared with those macrophages from uremic patients not yet recieving peritoneal dialysis. Results TNF-a levels of different glucose concentration decreased obviously in experimental group compared with control group, especially lower in 2.5% and 4.25% group. Conclusion In vivo experiment confirms that CDS possesses a long time inhibition on macrophage and this inhibition varies with different glucose concentrations.

Objective To construct the recombinant retroviruses vector PCLNRX-ICN and to explore over-activation Notch1 on the growth of human colon carcinoma cells HT-29.MethodsICN(intracellular domain of Noctch1) genes were inserted into retrovirus expression vector pCLNRX.The expression vector pCLNRX-ICN and packaging vector pCL-10A1 were co-transfected into 293 package cells.The recombinant retroviruses were used to infect HT-29 cells.After being infected,proliferation of HT-29 cells was observed by MTT assay.The expression of c-Myc and ?-catenin detected by RT-PCR and Western Blot.ResultsRecombinant retrovirus vector pCLNRX-ICN was successfully constructed.Overactivation of Notch1 by over-expressing exogenous ICN significantly inhibited the growth of HT-29 cells,and down-regulated ?-catenin,a key regulator of Wnt signaling,in protein level but not in mRNA levels.However,the mRNA or protein levels of c-Myc were not affected by overactivation of Notch1.ConclusionOver-activated Notch1 signaling could inhibit the growth of HT-29 cells partly through down-regulation of Wnt signaling independent of c-Myc inhibition.

Objective To clarify whether the peritoneal equilibration test (PET)-determined solute transport groups defined by Twardowski fits patients in our medical center. Methods 158 initial standardized PET data since 1995 was selected and proportions of four transport groups were calculated according to Twardowski's criterion. Using the mean and standard deviations of 4-hour dialysis/plasma ratio of creatinine (D/Pcr), transport groups of our patients were re-determined. Patients were classified as follow: according to both two criteria, patients whose 4-hour D/Pcr in the range of high transport, low transport and average transport were classified as group H1, group L1 and group A, respectively; several average transport patients who changed to low transport after re-evaluation were classified as group L2; high transport patients who changed to average transport were classified as group H2. Every group was compared with clinical status in order to evaluate which criterion fit our patients. Results The 4-hour D/Pcr was 0. 70 ?0. 14 in our patients. The proportion of high, high-average, low-average and low transport were 21.5%, 44.9%, 17.8% and 5. 7% according to Twardowski's and 14. 6% , 33.5%, 33.5% and 18. 4% after re-evaluation. The ultrafiltration volume in group L2 was significantly higher than that in group A ( P