Objective To study the disinfection efficacy of c ompound disinfectant of peracetic acid. Methods Suspended liqu id quantitative sterilization test and metal corrosion test were carried out wit h different concentrations of disinfectant compound. Results T he killing rate of Bacillus subtilis var.niger spores e xposed to peracetic acid 500 mg*L-1 or available chlorine 300 mg*L-1 for 15 minutes was 99.94% and 97.91% respectively, while that of the spores e xpos ed to the compound disinfectant containing both of them reached 100%. The influ ence of organic substances on the bactericidal efficacy of this compound disinfe ctant was less than that on the bactericidal efficacy of the single ingredient. The corrosive effect of the compound disinfectant on the metals was milder than that of peracetic acid, but heavier than that of dichlorodimethylhydantoin. Conclusions Disinfectant efficacy of compound disinfectant increase s clearly, while metal corrosiveness decreases.

Objective Tyrphostin AG1024(3-Bromo-5-t-butyl-4-hydroxybenzylidenemalonitrile) is a specific insulin like growth factor type Ⅰ receptor tyrosine kinase blocker,this study is to investigate the effect of AG1024 on the proliferation and apoptosis of hepatocellular carcinoma cell lines.Methods Treated with AG1024 on vailed concentrations(0～40 μmol/L),human hepatocellular carcinoma cel lines HepG2 and SMMC-7721 were observed for morphological and molecular biology changes,the effect of AG1024 on the cell lines proliferation invasion ability as well as apoptosis was evaluated. Results MTT showed that AG1024 dose-dependently inhibited the proliferation of hepatocellular carcinoma cells,flow cytometry suggested that AG1024 significantly promoted cell lines apoptosis,the cell invasion assay indieated that AG1024 significantly inhibited cell's invasion ability.RT-PCR showed over-expression of IGF-IR in liver cancer cells.and AG1024 dose-dependently increasedtheexpressionofcytochreme C. According totheresultsof Western, blotting,the phosphor-ERK and procaspase-3 were down-regulated while the total ERK remained unchanged. Conclusion AG1024 as a specific IGF-IR blocker blocks the downstream signaling cascade and thus inhibits the proliferation of hepatocellular carcinoma cells and induces cell's apoptosis.

Objective To explore the clinical effect of Weifuchun tablet combined with chemotherapy on patients with advanced non-small cell lung cancer (NSCLC).Methods Sixty-eight patients with advanced NSCLC was randomly divided into control group (n =34) treated with cisplatin + gemcitabine and treatment group (n =34) treated with Weifuchun tablet (1.436g × 2/d) and cisplatin + gemcitabine.After two treatment cycles,the clinical effect in both groups were evaluated.Results The clinical efficacy in the treatment group was 52.94％ (18/34),which in the control group was 41.18％ (14/34),there was no statistically significant difference between the two groups(x2 =0.94,P ＞ 0.05).The quality of life and the level of T lymphocytes were markedly improved,and the reduction of hemoglobin,leucocyte,and platelet,and nausea reaction were all significantly inhibited in treatment group compared with that in control group after two treatment cycles (x2 =4.12,4.66,5.96,4.12,5.90,all P ＜ 0.05).Conclusion Weifuchun tablet combined with chemotherapy effectively ameliorates the clinical symptoms of the patient with advanced NSCLC,reduces the toxic and side effects caused by chemotherapy,and improves the quality of life,which is worthy in the clinic.

Intraductal papillary mucinous neoplasm (IPMN) is a kind of epithelial neoplasms of mucin-producing cells arising in the main duct and/or branch ducts of the pancreas,and it is one of the precancerous lesions of the pancreatic cancer.With the development of pathology and radiology,the diagnostic rate of IPMN has been gradually increased and given a new understanding on the pathological characteristics,clinical diagnosis and treatment of IPMN.This review overviewed the classification,diagnosis,management and prognosis of IPMN,aiming to deepen the understanding of IPMN and improve the level of diagnosis and treatment.

Background and purpose:Clinical data show that Endostar, a recombinant human endostatin, has the therapeutic beneift for patients with non-small cell lung cancer (NSCLC) while combined with chemotherapy or ra-diotherapy. However, the microenvironment changes induced by Endostar monotherapy in NSCLC is not yet clear. The purpose of this study was to prospectively study tumor vascular effects of Endostar monotherapy in patients with locally advanced or advanced NSCLC by dynamic contrast-enhanced perfusion computed tomography (CT perfusion, CT-p). Methods:Previously untreated patients with histologically or cytologically conifrmed locally advanced or advanced NSCLC were eligible. All patients received daily Endostar (7.5 mg?m2) for 14 days. CT-p scans were acquired at the baseline and post-treatment. CT-p parameters, such as blood lfow (BF), blood volume (BV) and permeability surface PS (area product), were measured in all patients.Results:Of all 7 patients enrolled, four were staged asⅢB and three as stageⅣ (2 with malignant pleural effusion, 1 with brain metastasis). The median BF, BV and PS values of baseline and post-treatment were 27.1/48.9 mL/100 mL/min, 86.8/84.8 mL/100 mL and 45.0/54.0 mL/100 mL/min, respectively. After administration of Endostar for 14 days , BF showed a signiifcant increase compared with that at baseline (P=0.028), whereas no signiifcant changes were found in BV (P=0.398) and PS (P=0.237) values.Conclusion:Our results suggest that Endostar monotherapy induces a signiifcant increase in BF whereas no signiifcant difference in BV and PS.

Objective To investigates the role of duodenum and bile duct preserving pancreatic head resection (DBPPHR) in treatment of benign or low-grade malignant diseases located in the head of pancreas.Methods The clinical data of 31 patients who underwent DBPPHR between April 2012 to May 2016 in Zhejiang Provincial People's Hospital and Zhangzhou Municipal Hospital of Fujian Province were analyzed retrospectively.Results Of the 31 patients,4 patients underwent laparoscopic DBPPHR.One patient in the open group was converted to pancreaticoduodenectomy.For the open group,the mean operation time was (165.3 ±63.6) min;the mean estimated blood loss was (258.1 ± 156.9) ml;and the mean postoperative stay was (11.7 ± 6.3) days.The postoperative complications included 1 reoperation due to postoperative bleeding,1 bile leakage and 13 patients developed grade A pancreatic fistula (48.2％).For the laparoscopic group,the mean operation time was 350.0 (280.0 ～ 450.0) min;the mean estimated blood loss was 425.0 (250.0 ～600.0) ml;and the mean postoperative stay was 14 days.Three patients developed postoperative pancreatic fistula (grade A).The pathological diagnosis were:12 patients with pancreatolithiasis,8 patients with serous cystadenoma,4 patients with branched intraductal papillary mucinous neoplasm,5 patients with neuroendocrine tumor and 2 patients with mucinous cystadenoma.The follow-up period was 1 ～ 48 month,and there was no patient with diabetes or diarrhea.Conclusions DBPPHR was safe and efficacious.It is less invasive to treat benign or low-grade malignant diseases located in the head of pancreas.

Objective To analyze our experience on laparoscopic and Da Vinci robotic radical pancreaticoduodenectomy combined with major vascular resection and reconstruction,and to expand the indications of surgery for patients with pancreatic cancer.Methods From December 2013 to January 2016,67 patients underwent laparoscopic and Da Vinci robotic pancreaticoduodenectomy in our department.The resection was combined with major vein resection in 5 patients.We retrospectively analyzed the clinical data of these patients who had laproscopic or Da Vinci robotic pancreaticoduodenectomy with major vascular resection and reconstruction.Results The mean operation time was 378 (360 ～ 480) minutes,and the mean estimated blood loss was 360 (120 ～450) ml.4 patients underwent laparoscopic wedge-resection of PV/SMV without interruption of blood flow.After pancreaticoduodenectomy using the superior mesentery artery first approach,one patient underwent resection of a segment of portal vein and superior mesenteric vein followed by an end to end anastomosis using the Da Vinci robotic system.The total blood flow occlusion time was 35 minutes.Intraoperative frozen section biopsy and postoperative pathological results were chronic pancreatitis with pancreatic cancer in all these patients.The veins were invaded by tumor in 3 patients.In the remaining 2 patients,the vascular wall showed chronic inflammation.All the surgical resection margins were tumor negative.Postoperative complications included one patient with bile leakage,one patient with upper gastrointestinal bleeding and one patient with a grade A pancreatic fistula (PF).The patient with upper gastrointestinal bleeding was managed successfully using hemostatic treatment under gastroscopy,and the other patients all recovered well after conservative therapy.There was no death in this study.The mean postoperative hospitalization stay was 14 (9 ～35) days.Conclusions Laparoscopic or Da Vinci robotic radical pancreaticoduodenectomy combined with major vascular resection is safe and feasible in selected patients with pancreatic cancer.However,surgeons need to be experienced at both open pancreaticoduodenectomy combined with vascular resection and at standard laparoscopic pancreaticoduodenectomy.

Objective To evaluate ultrasound-guided methylene blue dyeing for radical liver segmental resection.Methods Liver segmental resection with uhrasound-guide methylene blue dyeing (UMD-SR) was performed in 16 cases, results were compared with 16 conventional liver segmental resection (CSR) retrospectively.Results All the operations under uhrasound-guided methylene blue dyeing were successfully carried out, among them, reverse dyeing was used in cases with segment Ⅳ, Ⅴ, Ⅷ resection.The blood loss in UMD-SR group was much less than CSR group(t =3.011 ,P =0.009) , at the cost of a longer operation time (t =5.423,P =0.000 07).There was no difference in the mortality and morbidity rates between two groups.Tumor recurrence rate was 6.25％ in UMD-SR group and 18.75％ in CSR group (x2 =0.133,P =0.285).Conclusions Ultrasound-guided methylene blue dyeing liver segmental resection can reduce the blood loss during operation, improve the safety of hepatectomy in case of hepatic carcinoma.

A method was developed for the determination of 54 volatile hydrocarbons in workplace air by thermal desorption/gas chromatography-hydrogen flame ionization detector. The workplace air was adsorbed by Tenax-TA thermal desorption tubes, then desorbed by thermal desorption and detected by gas chromatography. The experimental results indicated that the coefficients efficiency of 1,1-dichloroethylene, dichloromethane, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, 2,2-dichloropropane, bromochloromethane, 1,1,1-trichloroethane, 1,2-dichloroethane, 1,1-dichloropropene were 0.9941-0.9986. The detection limits of bromochloromethane, dibromomethane, trichloromethane, bromodichloromethane, 2,2-dichloropropane, dibromochloromethane, bromoform were 5.4-10.3 ng, the minimum detectable concentration was 0.01-0.1 mg/m~3 (the air volume=0.5 L). The coefficients efficiency of other 38 volatile hydrocarbons was above 0.999, the minimum detectable concentration were 0.001-0.01 mg/m~3. The detection limits of alkenes were 0.4-2.7 ng, alkanes 1.4-3.7 ng, aromatic hydrocarbons 0.2-1.0 ng and naphthalene 2.2 ng. The desorption efficiencies of 54 volatile hydrocarbons were 92.1%-113.1% and the relative standard deviations(RSDs) were 0.6%-17.4%. Except for the RSD values of cis-1,2-dichloroethylene, 1,1-dichloroethane, 1,1,1-trichloroethane, 1,1-dichloroethylene, 2,2-dichloropropane, trichloromethane, trans-1,2-dichloroethylene, dichloromethane, bromochloromethane were 5.1%-17.4%, those of other volatile hydrocarbons were below 5%;The experimental results indicated that the breakthrough capacities of 9 volatile hydrocarbons were 400-4000 ng, those of the other volatile hydrocarbons were above 10 μg. Except for the loss rates of 2,2-dichloropropane, bromodichloromethane were 10%-15% in stable experiment, those of other volatile hydrocarbons in Tenax desorption tubes were below 5%, which indicated that 54 volatile hydrocarbons stored in Tenax tubes were stable. The method is a quick and accurate for the detection of volatile hydrocarbons in workplace air.

Objective Linkage analysis were performed in 2 pure Chinese paroxysmal kinesigenic dyskinesia families to localize the locus of them. Method Microsatellites markers corresponding to pericentrometric region of chromosome 16 were used in parametric and nonparametrie linkage analysis for 27 members in the 2 pedigrees, haplotypes were constructed subsequently. Result The maximum LOD score and NPL score in the 2 families were all negative, P values were significantly larger than 0.05.No haplotype segregated with PKD phenotype was found. It showed no evidence of association with known PKD loci in both pedigrees, providing evidence for a novel PKD locus. Conclusion PKD is heterogeneous, a novel PKD locus may be in pure Chinese pedigrees.