Objective To evaluate clinical and endoscopic characteristics of ischemic colitis (IC), and to explore the methods for the early diagnosis of IC. Methods Thirty six patients diagnosed as IC in Hua dong Hospital from June 1975 to December 2000 were reviewed. All patients underwent colonoscopy with biopsy within 5 days of symptoms, and repeated the exam in 2 weeks to 2 months. Results Of the 36 cases (12 men and 24 women, average age 60.5 years old, range 35 84), 31 were over 50 years of age. IC usually presented with sudden onset of left lower quadrant abdominal pain, diarrhea and hematochezia. Patients' ischemic lesions were most often on the left colon. It consisted transient or reversible colitis in 30 cases, stricture colitis in 5 cases and gangrene colitis in only 1 case. Morphologic changes varied with the duration and severity of the injury. Conclusion Colonoscopy with biopsy is the main method for the diagnosis of IC. It should be performed in the early stage of the onset of symptoms.

Objective To observe the serum level of the CD62p,CD63 which indicates the platelet activity of the elderly patients treated by different-dose simvastatin after PCI.Methods Sixty-eight patients with acute coronary syndrome post PCI were randomly divided into 20 mg/d simvastatin group(36 patients)and 40 mg/d simvastatin group(32 patients).We examined the patient's blood CD62p,CD63 levels on the day before the treatment of PCI in both groups.Then all of the patients in both groups received different-dose simvastatin treatment(20mg/d or 40 mg/d qn po);we observed the results again after four weeks in both groups,and compared the results.Results The patients' blood CD62p,CD63 levels decreased significantly after the treatment of simvastatin in both groups(P

Objective To detect both the protein and gene expression of matrix metalloproteinase (MMP 2,MMP 9) and its tissue inhibitor (TIMP 2) in tissues of bladder transitional cell carcinoma (BTCC), and to study the correlation with the grading and staging of the neoplasm and with the prognosis. Methods 41 human BTCC ,15 normal bladder tissue were studied by Western Blot and RT PCR analysis followed by computer assisted image analysis in order to detect the A values of their expression. Results In BTCC, the A value of MMP 2, MMP 9 were increased significantly as compared to normal bladder epithelium. There was no statistical significant difference of A value of TIMP 2 between normal bladder tissue and bladder cancer tissue. The ratio of MMP 2/TIMP 2 in bladder cancer showed statistical significantly difference as compared with normal bladder tissue. Conclusions This study demonstrated there was a high expression of MMP 2 and MMP 9 in BTCC,by which collagen Ⅳ inside basement membrane of bladder was damaged.However, the ratio of MMP 2/TIMP 2 has more prognostic value than the expression of MMP 2 and MMP 9 alone.

Objective To explore the value of the combined detection of helper T lymphocyte (Th)1 and 2 type cytokines ex‐pression in the evaluation of acute pancreatitis severity and treatment efficacy .Methods From May 2009 to June 2013 ,the enzyme‐linked immunosorbent assay (ELISA ) was adopted to detect the expression levels of Th1‐type cytokineinterferon‐γ (IFN‐γ) and Th2‐type cytokine interleukin (IL)‐4 in 32 cases of mild acute pancreatitis (MAP group) and 18 cases of severe acute pancreatitis (SAP group) on 1 ,4 ,7 d after admission as well as 15 cases of normal healthy people (control group) .Results The test results of IFN‐γ on 1 ,4 ,7 d after admission in the MAP group were (31 .47 ± 4 .35) ,(36 .92 ± 4 .12) ,(49 .09 ± 4 .97)ng/L ,which of IL‐4 were (54 .72 ± 5 .52) ,(45 .26 ± 4 .89) ,(39 .79 ± 3 .85)ng/L .The test results of IFN‐γ on 1 ,4 ,7 d after admission in the SAP group were (23 .97 ± 5 .39) ,(26 .29 ± 3 .47) ,(33 .64 ± 4 .47)ng/L ,and which of IL‐4 were (70 .45 ± 5 .05) ,(65 .99 ± 4 .58) ,(56 .23 ± 4 .23)ng/L .The test results of IFN‐γ and IL‐4 in the normal control group were (49 .26 ± 20 .67)ng/L and (35 .15 ± 16 .32)ng /L respectively .Compared with the normal control group ,the expressions of Th1‐type cytokine IFN‐γ in the MAP group (except which on 7 d) and peripheral blood Th1‐type cytokine IFN‐γ in the SAP group were decreased and the expression of Th2‐type cyto‐kine IL‐4 was increased ,the difference was statistically significant (P< 0 .05) ;The test results of each index in the same treatment time had statistically significant differences between the SAP group and the MAP group (P< 0 .05) .Conclusion The obvious po‐larization of Th1‐type cytokine and Th2‐type cytokine exists in acute pancreatitis ,and the polarization degree is related with the se‐verity of disease .The combined detection of Th1‐type cytokine and Th2‐type cytokine is beneficial to judge the extent of serious condition and treatment effect of acute pancreatitis .

Objective To compare the advantages and disadvantages of two methods for rat overactive bladder(OAB)model construction in?duced by intraperitoneal injection and intravesical instillation cyclophosphamide. Methods A total of 30 female SD rats weighting 200?250 g were randomly categorized into three groups:intraperitoneal injection?induced OAB(Ip?OAB),intravesical instillation?induced group(Iv?OAB)and con?trol group. Ip?OAB rats was i.p. administrated cycbophosphe mide three times in dose of 75 mg/kg body weight,while Iv?OAB rats received intravesi?cal instillation three times in drug dose of 75 mg/kg body weight. Control group rats received no treatment. Maximum bladder capacity(MBC),maxi?mum voiding pressure(MVP),frequency of spontaneous contraction of each group were recorded. The incidence,the mortality and the pathology of the three groups were compared. Results MBC,MVP and frequency of spontaneous contraction between Ip?OAB group and Iv?OAB group had no statistically significant difference(P>0.05). Compared with the control group,MBC significantly increased(P<0.05),MVP significantly decreased (P<0.05),and frequency of spontaneous contraction significantly increased(P<0.05)in Ip?OAB and Iv?OAB rats. The modeling success rate and mortality were 100%and 80%in Ip?OAB group,and were 50%and 0%in Iv?OAB group,and pathological changes were found in the two groups. Conclusion The construction of experimental animal model of OAB in rat induced by intraperitoneal injection and intravesical instillation cyclo?phosphamide are both reliable methods. Ip?OAB rats exhibit high incidence and mortality rate,while Iv?OAB rats show low incidence and mortality rate.

Objective: To establish the quality control method for ephedrine in Herba Ephedrae and its preparation Zhisoulixiao Tablets (Herba Ephedrae, Pericarpium Papaveris, Semen Armeniacae Amrum, Radix Glycyrrhizae, Gypsum Fibrosum, Semen Lepidii, Semen Raphani, etc.) and Zhisoulixiao Capsules. Methods:Ephedrine hydrochloride contents in Herba Ephedrae and its preparation Zhisoulixiao Tablets and Zhisoulixiao Capsules were determined by TLC scanning with a mixture of chloroform ethyl acetate methanol water(13∶40∶22∶10)as a developer and single wavelength reflection sawtooth scanning. Results: The methodological study showed that a good linear correlation in the range from 0.29112?g to 1.4556?g of the ephedrine hydrochloride applied. The average recovery of ephedrine hydrochloride in Herba Ephedrae, Zhisoulixiao Tablets and Zhisoulixiao Capsules was 78.74%( n=5 ),99.46%( n=5) and 99.14%( n=5) ,respectively. Conclusion: The method established is simple,accurate with good reproducible and high precision.The method can be used for the quality control of Herba Ephedrae and its preparation

Under the background of resident standardization training pilot in Zhejiang province , this paper put forward the scheme of resident doctors standardization training and teacher training for the first time .This paper an-alyzed the necessity of medical ethics education in teacher training and standardization training and the requirements of teacher training in ethical education and ways for ethical education .Carrying out medical ethics education not only improves teachers'medical ethics knowledge , but also let them master the medical ethics teaching methods and skills.

Objective To obtain skin seed cells which can highly express active vascular endothelial growth factor 165(VEGF165) so as to promote refractory wound healing by gene therapy in combination with cell engineering.Methods After pIRES2-EGFP-hVEGF165 was transfected into dermal mesenchymal stem cells(DMSCs) by lipofectin,the expression of VEGF mRNA was detected by RT-PCR,VEGF protein in the supernatant and in the cells were assayed by enzyme-linked immunosorbent assay(ELISA) and Westen blotting respectively.To evaluate the activity of VEGF secreted by transfected DMSCs,hECV304 was cultured with the supernatant of transfected DMSCs and its proliferation activity was analyzed by MTT assays.Meanwhile,the proliferation activity of VEGF-transfected DMSCs and non transfected DMSCs was investigated by MTT.Results The results of RT-PCR,ELISA and Western blot demonstrated that the expression of VEGF in transfected DMSCs was about 1.6 times than that of control DMSCs.The product not only enhanced the proliferation of hECV304 but also increased the proliferation of transfected DMSCs.Conclusion The plasmid pIRES2-EGFP-hVEGF165 is successfully transfected into DMSCs with the aid of lipotransfection,and hVEGF165-transfected DMSCs might high-efficiently secrete highly active VEGF165.

Recent studies show that resveratrol is characterized with its antioxidative and anti-inflammatory effects, and plays an important role in the prevention and treatment of colorectal cancer through modulating intracellular carbohydrate and ceramide metabolism, activating tumor suppressors such as activator of transcription 3 and peroxisome proliferators-activated receptor γ, down-regulating the expression of kirsten rat sarcoma viral oncogene and inhibiting the epithelial-to-mesenchymal transition process of cancer cells.In addition,resveratrol exhibits its broad application prospects in combination therapy.

Objective To investigate the effect of sodium valproate in suppression of cell proliferation and arrest of cell cycle of in human hepatoma cell line SMMOL/LC-7721 and pancreatic cancer cell line PaTu8988.Methods Hepatoma cell line SMMOL/LC-7721 and pancreatic cancer cell line PaTu8988 were inoculated on the culture plate,cultured in the DMEM medium,they were intervened with sodium valproate in concentration of 0.2 mmol/L (0.2 mmol/L group),1.0 mmol/L (1.0 mmol/L group),5.0 mmol/L (5.0 mmol/L group) and dimethyl sulfoxide (control group) for 48 h respectively.Absorbance was measured by enzymelinked immunosorbentassay equipment,and inhibition ratio was calculated.Cell cycle was detected by flow cytometry.Results The absorbance of hepatoma cell line SMMOL/LC-7721 and pancreatic cancer cell line PaTu8988 in 5.0 mmol/L group were significantly lower than those in control group and 0.2 mmol/L group (0.569 ±0.059 vs.0.706 ±0.033 and 0.760 ±0.020,2.068 ±0.178 vs.2.793 ±0.144 and 2.663 ± 0.078,P ＜ 0.05),the absorbance of pancreatic cancer cell line PaTu8988 in 1.0 mmol/L group (2.432 ± 0.084) was significantly lower than that in control group and 0.2 mmol/L group (P ＜ 0.05).With the sodium valproate concentration increased,inhibition rate of tumor cell increased gradually,the inhibition rate of hepatoma cell line SMMOL/LC-7721 and pancreatic cancer cell line PaTu8988 in 5.0 mmol/L group was 23.5％ and 25.9％ respectively.Compared with control group,with the sodium valproate concentration increased in 0.2,1.0,5.0 mmol/L group,the proportion of G1 phase cell increased gradually in hepatoma cell line SMMOL/LC-7721 [(49.25 ± 1.63)％,(65.26 ± 2.34)％,(83.13 ± 1.78)％ vs.(49.22 ± 4.35)％],the proportion of S phase cell decreased gradually [(26.84 ± 2.30)％,(17.76 ± 3.90)％,(3.38 ± 0.65)％ vs.(29.21 ± 2.35)％],cell cycle showed G1 phase arrest,there was significant difference (P ＜ 0.05).Compared with control group and 0.2 mmol/L group,the proportion of G2 phase cell increased in pancreatic cancer cell line PaTu8988 in 1.0 and 5.0 mmol/L group [(26.80 ± 1.50)％,(36.58 ± 3.78)％ vs.(12.00 ± 4.62)％,(16.54 ± 2.26)％],cell cycleshowed G2 phase arrest,there was significant difference (P ＜ 0.05).Conclusion Sodium valproate mightsignificantly suppress the cell proliferation in hepatoma cell line SMMOL/LC-7721 and pancreatic cancercell line PaTu8988 and induce cell cycle arrest,it is clinically promising antitumor drug.