Objective To investigate the enhancing effect of Celecoxib on the anti-proliferative effect of cisplatin (DDP) against human cervical carcinoma HeLa cells and to explore the possible mechanism. Methods After treatment of HeLa cells with Celecoxib or/and DDP, the growth suppression of HeLa cells was measured by MTT assay. Cell cycle and apoptosis were examined by flow cylometry. Results The inhibition of Celecoxib on HeLa cells was dose -dependent and time -dependent.The inhibitory effect was remarkable enhanced in asynergistic or additive pattern after treatment with the combination of Celecoxib and DDP (P =0.000) . Celecoxib (50 μmol/L) and DDP (16 μmol/L) could respectively induce the apoptosis of HeLa cells and this effect of apoptosis induction was increased when combinated Celecoxib with DDP. They could change cell cycle of HeLa cells lines with G_0/G_1 phase cells increasing and S phase cells decreasing. Conclusion Celecoxib combined with DDP shows synergistic anti-tumor effects.

AIM:To observe autophagic apoptosis induced by docetaxel in cervical cancer HeLa cells in vitro,and explore its potential molecular mechanism. METHODS:Cervical cancer HeLa cells in vitro were treated with docetaxel of different concentrations (1,5,10,20,40 ?g/mL) and different time (6,12,24,48,72 h). The growth inhibiting of HeLa cells was observed by methyl thiazolyl tetrazolium(MTT) assay. Inverted microscope and electron microscopy were used to observe cell morphological changes. The apoptosis ratio and cell cycle were determined by flow cytometry(FCM). The expression of autophagy gene Beclin 1 was examined by reverse transcriptase polymerase chain reaction(RT-PCR) technique. RESULTS:Docetaxel inhibited the proliferation of cervical cancer HeLa cells in a dose-dependent and time-dependent manner(P

Fermentation conditions for the production of spores of Bacillus mucilaginosus mutant 021120 were optimized through the single factor and orthogonal experiments.The results showed that the biomass and formation of spores were obviously affected by carbonate,followed by nitrogen.Addition of CaCO3 and enhancing air flux notably promoted the formation of spores.The optimal culture medium was composed of 2% starch,0.4% Yeast,0.1% K2HPO4,0.1% MgSO4?7H20 and 0.5 %CaCO3,pH7.5.6% of the inoculum prepared with two-stage extensive culture was inoculated into a 70L fermentor.The fermentation was carried out with 2.0~2.5 vvm of air flux at 32℃ for 38~42h,and the spores of 9.80?108 cfu ml-1 was obtained.Under these optimal fermentation conditions,the capsule was successfully controled and the formation of the spores was effectively improved,thus the satisfying bacteial product was obtained.

Objective: To analyze the relationship between hemoglobin ( Hb ) and serum uric acid ( SUA ), so as to provide basis for preventing hyperuricemia ( HUA ) . Methods: As the research subjects, people who underwent physical examination in Zhejiang Provincial People's Hospital from January 1, 2017 to October 31, 2020 for 4 years in a row and who were non-HUA in 2017 were selected. The physical examination data were collected, including body mass index, blood pressure, blood routine, blood biochemical tests, etc. The subjects grouped by quartiles of Hb level in 2017. The occurrence of SUA elevation ( SUA increased ≥60 μmol/L from baseline ) , significantly SUA elevation ( SUA increased ≥120 μmol/L from baseline ), HUA ( SUA>420 μmol/L ) and severe HUA ( SUA ≥480 μmol/L ) in the next 3 years were taken as end events. The incidence, occurrence time and risk of end events in different Hb groups were analyzed. Results: A total of 4 073 subjects were selected and divided into 4 groups according to the Hb level from low to high, with 969 subjects in group A, 907 subjects in group B, 1 109 subjects in group C and 1 088 subjects in group D. SUA elevation was in 745 patients ( 18.29% ); significantly SUA elevation was in 105 patients ( 2.58% ); HUA was in 514 patients ( 12.62% ); severe HUA was in 94 patients ( 2.31% ). The incidence of SUA elevation and significantly SUA elevation showed a decreasing trend with the increase of Hb level ( P<0.05 ). The occurrence time of SUA elevation in group A to D was 2.788, 2.817, 2.860 and 2.814 years, and the difference was statistically significant ( P<0.05 ). There were no statistically significant differences in the occurrence time of other end events ( P>0.05 ). The multivariate Cox proportional hazards regression analysis showed that compared with group A, other Hb groups had lower risk ( HR=0.498-0.776, 95%CI:0.253-0.981 ) of SUA elevation, significantly SUA elevation and severe HUA after adjusting for gender, age, ALT, Scr, body mass index, etc. Conclusions With the increase of Hb level, the incidence of SUA elevation may decrease and the occurrence time is prolonged. Compared with the lowest Hb group, the higher Hb groups had lower risk of SUA elevation, significantly SUA elevation and severe HUA.

OBJECTIVETo establish discriminant functions of diarrhea-predominant irritable bowel syndrome (IBS-D) by studying it from quantitative diagnosis angle, hoping to reduce interference of subjective factors in diagnosing and differentially diagnosing Chinese medical syndromes of IBS-D.

METHODSA Chinese medical clinical epidemiological survey was carried out in 439 IBS-D patients using Clinical Information Collection Table of IBS. Initial syndromes were obtained by cluster analysis. They were analyzed using step-by-step discrimination by taking information of four Chinese medical diagnostic methods and serum brain-gut peptides (BGP) as variables.

RESULTSClustering results were Gan stagnation Pi deficiency syndrome (GSPDS), Pi-Wei weakness syndrome (PWWS), Gan stagnation qi stasis syndrome (GSQSS), Pi-Shen yang deficiency syndrome (PSYDS), Pi-Wei damp-heat syndrome (PWDHS), cold-damp disturbing Pi syndrome (CDDPS). Of them, GSPDS was mostly often seen with effective percentage of 34. 2%, while CDDPS was the least often seen with effective percentage of 5.5%. A total of 5 discriminant functions for GSPDS, PWWS, GSQSS, PSYDS, and PWDHS were obtained by step-by-step dis- crimination method. The retrospective misjudgment rate was 4.1% (16/390), while the cross-validation misjudgment rate was 15.4% (60/390).

CONCLUSIONThe establishment of discriminant functions is of value in objectively diagnosing and differentially diagnosing Chinese medical syndromes of IBS-D.

Alarmins ; Brain ; Cluster Analysis ; Diarrhea ; classification ; diagnosis ; Hot Temperature ; Humans ; Irritable Bowel Syndrome ; classification ; diagnosis ; Medicine, Chinese Traditional ; Qi ; Retrospective Studies ; Surveys and Questionnaires ; Yang Deficiency

Energy Metabolism ; Humans ; Oxygen Consumption ; Walking ; physiology ; Weight-Bearing ; physiology

Objective: To explore the inlfuence of diastolic iflling pattern on cardiac resynchronization therapy (CRT) in patients with ischemic cardiomyopathy.
Methods: A total of 61 patients with ischemic cardiomyopathy received CRT in our hospital from 2012-03 to 2014-03 were studied. According to pre-CRT diastolic iflling pattern, the patients were divided into 2 groups:Non-restrictive iflling (NRF) group, n=36 and RF group, n=25. All patients were followed-up for 12 months, based on NYHA classiifcation, CRT efifcacy was assessed by echocardiography;the endpoints included re-hospitalization for heart failure or cardiac death. Kaplan-Meier survival curve was used to assess the prognosis.
Results: ①NRF group had CRT response rate at 66.7%(24/36) which was higher than RF group 28.0%(7/25), (χ2=8.826, P=0.003);the post-operative NYHA classiifcation, LVEF, FS, LVEDV and LVESV were signiifcantly improved, all P<0.01.② RF group showed the improved post-operative NYHA classification, P<0.01, while no obvious changes of LVEF, FS, LVEDV at 6 months after operation, and LVESV increased than it was before, P<0.05. Signiifcant differences were observed between 2 groups at 6 months after operation, P<0.01. Logistic regression analysis indicated that diastolic iflling pattern was the independent impact factor for CRT response. There were 2 patients died during 12 months of follow-up period;the endpoints in RF group was 76.0%(19/25) which was higher than NRF group 44.4%(16/36), (χ2=5.213, P=0.022).
Conclusion: Diastolic iflling pattern affected CRT efifcacy in patients with ischemic cardiomyopathy;NRF patients were more beneifciary for CRT, while RF patients had lower response to CRT which associated to poor prognosis.

Objective To construct and implement the training model of eight-year medical education with characteristics of Shanghai Jiaotong University. Methods Based on survey,discussion and consultation,the experiences of long schooling medical education in Shanghai Jiaotong University School of Medicine were summarized.Training plan and education reform scheme were established. Results Training objective,guideline and major reform measures had been clarified.The training plan and reform scheme were under process of implementation. Conclusion The training objective of eight-year medical education should be further confirmed.The curriculum should be in accordance with the training objective,and education reform is important and necessary for the eight-year medical education.

Objective To retrospectively analyze the therapeutic effect on patients with tonsillar carcinoma and factors affecting their prognosi. Methods Clinical data of 61 patients pathologically confirmed with tonsillar carcinoma without distant metastasis were analyzed. All the patients were treated in Cancer Center of Sun Yat-sen University from April 1997 to April 2008. There were 2 patients with undifferentiated carcinoma, 26 with poorly differentiated squamous cell carcinoma and 33 with median-well differentiated squamous cell carcinoma. According to the AJCC 2002 staging criteria for head-neck cancers, there were 9 staged Ⅰ cases, 7 staged Ⅱ cases,23 staged Ⅲ cases and 22 staged Ⅳ cases. The treatment was radiotherapy alone in 27 cases, radiotherapy combined with chemotherapy in 23 cases, surgery combined with postoperative radiotherapy in 6 cases, neoadjuvant chemotherapy plus surgery combined with postoperative radiotherapy in 3 cases, radiotherapy with salvage surgery in 2 cases. Results The overall 5-year survival rate was 50. 2%. For 16 cases with staged Ⅰ-Ⅱ staged, there were 8 cases with radiotherapy alone, 5 years survival was 50. 0%, 6 cases with surgery combined with postoperative radiotherapy, 5 years survival was 83.3%. The difference between the two treatments was not significant in statistics (P=0.318). For Ⅲ-Ⅳ staged 45 cases, there were 19 cases with simple radiotherapy, 5 years survival was 51.5%, 21 cases with radiotherapy combined with chemotherapy, 5 years survival was 36.4%, 5 cases with surgery combined with postoperative radiotherapy, 5 years survival was 75.0%. The difference among the three treatments was not significant in statistics (P=0.239). According to T stages, the 5-year survival rates of stage T1-T4 cases were 91.8%, 46.8%, 29.1%, 0% respectively (χ~2=30.168, P<0.001). Multivariate analysis demonstrated that T stage, therapeutic effect of primary site and cervical metastatic lymph node were the independent prognostic factors (P<0.05). Conclusions T stage, the therapeutic effect of primary site and cervical metastatic lymph node were the independent prognostic factors. For Ⅰ-Ⅱ staged tonsillar tumor cases, based on organ preservation, were tendency to choice simple radiotherapy. For Ⅲ-Ⅳ staged cases,yet the ralationships between therapeutic mode and therapeutic effect still need further researches.

OBJECTIVETo investigate the effects of overexpression of exogenous Notch1 in human tongue squamous cell carcinoma (TSCC) cells on cell growth and expression of epidermal growth factor receptor (EGFR) in vitro.

METHODSHuman TSCC cell line Tca8113 cells were transiently transfected with the eukaryotic expression plasmid pRAMIC-IRES2-EGFP encoding exogenous intracellular fragment of Notch1 and control plasmid pIRES2-EGFP by Lipofectamine 2000, respectively. Untransfected parental Tca8113 cells served as control. The cell proliferation was evaluated by methyl thiazolyl tetrazolium(MTT) assay. The apoptosis was assessed by flow cytometry. The mRNA and protein levels of Notch1 and EGFR in Tca8113 cells were detected by reverse transcriptase-polymerase chain reaction (RT-PCR) and Western blot. The expression of EGFR protein in Tca8113 cells was detected by immunocytochemistry.

RESULTSMTT assay showed that the cell proliferation of Tca8113 cells transfected with pRAMIC-IRES2-EGFP was significantly inhibited as compared with controls (P < 0.05). After transfected with pRAMIC-IRES2-EGFP for 48 h, the apoptosis rate of Tca8113 cells was significantly higher than those of Tca8113 cells transfected with pIRES2-EGFP and untransfected Tca8113 cells (P < 0.05), and Notch1 expression was significantly increased at mRNA (P < 0.05) and protein (P < 0.05) levels, while EGFR expression was significantly decreased at mRNA (P < 0.05) and protein (P < 0.05) levels.

CONCLUSIONOverexpression of exogenous Notch1 may inhibit cell growth and down-regulate EGFR expression in TSCC cells.

Apoptosis ; Carcinoma, Squamous Cell ; Cell Line, Tumor ; Cell Proliferation ; Down-Regulation ; Humans ; In Vitro Techniques ; RNA, Messenger ; Receptor, Epidermal Growth Factor ; Tongue Neoplasms ; Transfection