Objective To study the effects of propofol used alone and in combined with opioids in gastroscopy,in order to select the more suitable anesthesia protocol.Methods A total of 285 pa-tients undergoing gastroscopy were selected in April ,201 5 in our hospital,including 105 males,180 females,ranging from 18 to 65 years old,weighing 40-90 kg,falling the category of ASA Ⅰ or Ⅱ. According to random number table,subjects were divided into four groups:dezocine group(group D, n =76),fentanyl group (group F,n =87),oxycodone group (group O,n = 71 )and control group (group C,n =5 1).Each group was implemented the corresponding anesthesia.SBP,DBP,HR,SpO 2 in baseline(T0 ),1(T1 ),3(T2 ),5(T3 )min after entering gastroscope were recorded.Choking cough, body movement,extra propofol,awakening time and inspecting time were observed.Results Among four groups,there was no statistical significance in age,gender,weight,blood pressure,heart rate and oxygen saturation and other general information.There were more cases given extra propofol in group C than in the other three groups (P <0.01 ).While for the experimental groups,there were more cases needing extra propofol in group O than in group D and group F (P < 0.01 ).The incidences of body movement and choking cough in group C were higher than those in the other three groups (P <0.01 ).Compared with the group C,dosage of propofol ,awakening time in the three groups,especially in group D,were much lower (P < 0.01 ).Conclusion Propofol in combination with opioids for sedation during painless gastroscopy can alleviate adverse reaction caused by propofol used alone.The more suitable anesthesia protocol is propofol with dezocine.

Probability of causation (PC) was used to facilitate the adjudication of compensation claims for cancers diagnosed following exposure to ionizing radiation. In this article, the excess cancer risk assessment models used for PC calculation are reviewed. Cancer risk transfer models between different populations, dependence of cancer risk on dose and dose rate, modification by epidemiological risk factors and application of PC are also discussed in brief.

Objective: To establish a female SPF BALB/c mouse model of antibiotic-associated intestinal microflora disturbance and analyze the effect of lactobacillus acidophilus.Methods: Female SPF BALB/c mice were treated with ceftriaxone in drinking water for five days,and followed by oral gavage of sodium chloride as natural recovery group or lactobacillus acidophilus(108CFU/mL) as therapeutic group.After seven days the intestinal microflora of the cecum content was abstracted and computed by plate counts and 16S rDNA-based PCR-DGGE method.Results: Plate counts indicated that the number of original bacterium lacticum and bacillus bifidus decreased significantly and enterococci proliferated abnormally after antibiotic treatment.After lactobacillus acidophilus treatment,the number of physiological bacteria and enterococci go back to normal levels.DGGE profile clearly indicated that the dominant bacteria changed and the bacterial diversity of intestinal microbiota was obviously decreased in the antibiotics treated group. Conclusion: Oral gavage of lactobacillus acidophilus has adjustment effect on Ceftriaxone induced intestinal microbiota disturbance.PCR-DGGE is a rapid、effective molecule method to reveal the whole microbiota status.

Objective To explore the main factors affecting medical expenses of patients with colorectal cancer(CRC)and reduce such expenses by optimizing the clinical pathway of CRC according to the influencing factors.Methods Data of 467 discharged and medical insured CRC patients at Shanghai Cancer Center,Fudan University,were collected from 2009 to 2010.A multiple linear regression model was applied to analyze the influencing factors of medical expenses.The clinical pathway of CRC was optimized,and medical expenses before and after optimization were compared.Results Our data found days of stay and complications had impact on the medical expenses.Also,medical expenses were decreased accordingly with optimization of clinical pathway of CRC.Conclusion This study provides evidence for decision-making on single disease payment and medical insurance compensation on CRC.It is also meaningful to reduce the economic burden of patients with CRC.

Genuine medicinal materials with special characteristics of Traditional Chinese Medicine (TCM), is recognized as high quality medicine. Both ancient records and modern research considered that the origin is an important reason for the formation of genuine medicinal materials. However, blindly transplanting of genuine medicinal materials has led to the quality decline and counterfeit medicines appeared in production or sale progress, which may increase the risk of accidents in TCM. Frequent accidents emerged in Chinese herbal affects its export. What's more, it is a great threat to the medication safety in TCM clinical. There is an urgent need to implement traceability systems of TCM, which could provide convenient information record and traceability of TCM circulation. This paper reviews a variety of technical methods for genuine medicinal materials traceability, and proposed the establishment of genuine medicinal materials traceability system based on two-dimensional code and network database.
Databases, Factual ; Drugs, Chinese Herbal ; chemistry ; economics ; standards ; Medicine, Chinese Traditional

N-acetyl-L-cysteine (NAC) capped quantum dots (QDs) were synthesized by a hydrothermal method and coated with 2-amino-2-deoxy-D-glucose (DG), polyethylene glycol (PEG), and 9-D-arginine (9R). The optical properties, morphology and structure of 9R/DG-coated CdTe QDs were characterized by ultraviolet-visible spectrometry, fluorescence spectrum, Fourier transform infrared (FTIR), proton nuclear magnetic resonance (1H NMR), liquid chromatography-mass spectrometer (LC-MS), sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and transmission electron micrographs (TEM). Furthermore, the biocompatibility, tumor targeted ability and transmembrane action of 9R/DG-coated CdTe QDs were studied. Results indicated that 9R/DG-coated CdTe QDs was constructed successfully by ligand exchange. The 9R/DG-coated CdTe QDs with the size of 8-10 nm had good dispersity and the absorbance and fluorescence peaks of CdTe QDs after modification were red shifted from 480 nm to 510 nm and 627 nm to 659 nm, respectively. In addition, the CdTe QDs modified by PEG, DG and 9R displayed good biocompatibility, high targeted ability to the cancer cells with glucose transporter type 1 (GLUT1) receptor high expression and obvious transmembrane ability.

Objective To investigate the influence of thymosin beta 4 (Tβ4) with two different dosages on the expression of transforming growth factor beta (TGF-β) and connective tissue growth factor (CTGF) in rats with renal tubular interstitial fibrosis,and to further estimate the changes of renal tubular interstitial lesions.Methods Rat models of renal tubular interstitial fibrosis were established by unilateral ureteral occlusion (UUO).The male SD rats were randomly divided into 4 groups and 15 rats in each group:sham group,model group,treatment group with 1 mg/L Tβ4 and treatment group with 5 mg/L T34.Rats in sham group and model group were poured into the same amount of saline.The renal function and renal pathological changes were observed after the second week.The mRNA and protein expression of TGF-β and CTGF in renal tissues was tested by in-situ hybridization and Western blotting.Results Compared with that in sham group,the expression of TGF-β mRNA and its protein,CTGF mRNA and its protein was significantly higher in model group (all P ＜ 0.01).Compared with rats of model group,Tβ4 treatment rats had lower mRNA and protein expression of TGF-β and CTGF (all P ＜ 0.01),and the expression in treatment group with 5 mg/L Tβ4 was lower than that in treatment group with 1 mg/L Tβ4 (P ＜ 0.05).And the expression of TGF-β mRNA was positively correlated with CTGF mRNA expression (r=0.697,P ＜ 0.01).The 24 h total urinary protein and the area of renal tubular interstitial lesion in model group were significantly more than those in sham group,and also more than those in Tβ4 treatment group (all P ＜ 0.05).Tβ4 treatment attenuated kidney damage,and the effects in treatment group with 5 mg/L Tβ4 were better than those in treatment group with 1 mg/L Tβ4.No difference in serum creatinine and blood urea nitrogen was observed among 4 groups (all P ＞ 0.05).Conclusions Tβ4 treatment can inhibit the renal TGF-β and CTGF expression of rats with tubular interstitial fibrosis in a dose-dependent manner,and play a protective role in kidney.

To explore the protective effects of trimetazidine on vascular endothelial cells injury induced by hydrogen peroxide (H2O2) and its pharmacological mechanisms of anti-oxidation.Methods Human umbilical vein endothelial cells (HUVECs) were injured by H2O2.Next,the cells were treated with three different concentrations of trimetazidine (1 μmol/L,10 μmol/L,100μmol/L,respectively).The viability of cells was detected by methyl thiazoeyl tetrazolium (MTT) assay.In addition,malondialdehyde (MDA)contents,superoxide dismutase (SOD) and secretion of NO were measured.Results Trimetazidine could enhance the viability of the injured HUVECs induced by oxidation,decrease the level of MDA,enhance the SOD activity,and increase the secretion of nitrogen monoxide.These effects were in a certain dose-dependent manner and the difference was significant among the three concentrations (P＜0.05).Conclusions Our results suggest that trimctazidine may protect lipid peroxidation and prevent oxidation-induced cellular dysfunction of HUVECs (J Geriatr Cardiol 2008;5:248-251)

Objective:To explore the etiology and treatment of one case of bilateral mandibular second molar impaction with paradental cyst, and to provide a reference for its diagnosis and treatment. Methods:Root canal treatment of the left mandibular first molar of the patient was performed before operation.The left mandibular second molar of the patient was removed;the residual dental follicle, the granulation tissue and the cyst wall were stroken off under local anesthesia.The diamond ball was used to polish the wound cavity and sharp bone edge, and to mill the distal apical part of left mandibular first molar.The tissue removed during the procedure was used for the pathological examination.Results:The X-ray image showed that the bilateral mandibular second molar was impacted with the left mandibular first molar root's absorption, and there was a clear round-like density reduction zone around the second molar crown.The pathologic result was paradental cyst.Conclusion:Dental impaction complicated with paradental cyst could occur in other tooth position except for the third molar.Its diagnosis should be combined with the clinical manifestations, the pathologic manifestations and the medical imaging.Multidisciplinary consultation is in favor of its diagnosis and treatment.

Objective:To study the inductive effect of recombinant MUC1-MBP fusion protein combined with R848 on the immune activity of T cells in the mice,and to provide experimental basis for searching the suitable adjuvants of recombinant MUC1-MBP fusion protein.Methods:A total of 21 C57BL/6 mice were randomly divided into control group(treat with normal saline),MUC1-MBP+R848 group (treated with MUC1-MBP+R848),and MUC1-MBP+baillus calmette guerin(BCG) group(treated with MUC1-MBP+BCG)(n=7).After immunized for 4-7 d,the spleen tissue was taken and the spleen indexes of the mice in various groups were measured;the stimmulus index(SI) of the mice was detected by lymphocyte proliferation response;the levels of tumor necrosis factor-γ(TNF-γ) and interleukin-4(IL-4) were detected by ELISA method;the proprotions of T lymphocyte subsets in spleen cells were analyzed by flow cytometry.Results:Compared with control group,the spleen indexes,SI,and TNF-γ levels of the mice in MUC1-MBP+ R848 and MUC1-MBP+BCG groups were significantly increased (P<0.05 or P<0.01);the indexes metioned above of the mice in MUC1-MBP+ R848 were higher than those in MUC1-MBP+BCG group;the IL-4 levels had no significant difference(P>0.05).Compared with control group,the proprotions of CD3+T,CD4+T,and CD8+ T cells of the mice in MUC1-MBP+ R848 group and MUC1-MBP+BCG group were significantly increased(P<0.05 or P<0.01).Conclusion:Both MUC1-MBP fusion protein combined with R848 and BCG can induce the Th1 type of immune activity in the mice,and R848 is the potential candidate adjuvant for MUC1-MBP.