As one of the gastrointestinal malignancies,pancreatic cancer is well known because of high degree of malignancy,low survival rate and very poor prognosis.Lymphatic metastasis,the most important metastasis of pancreatic cancer,has the characteristics of metastasis in an early stage and high occurrence rate.Recently,some studies have suggested that widespread micrometastasis of lymph nodes occurring in the early stage of pancreatic cancer could play an important role in influencing postoperative neoplasm recurrence.Further studies on lymph node micrometastasis of pancreatic cancer are needed to help to understand pancreatic cancer more deeply and to comprehend metastasis rule more clearly.So we can choose more reasonable surgical treatment for every patient,achieving individual treatment,so as to improve the prognosis of the pancreatic cancer patients.

Objective To study the current status of morning blood pressure peak in elderly masked hypertension patients and study the correlation between morning blood pressure peak and cognitive function.Methods A total of 72 elderly masked hypertension patients were selected in this study,.Morning blood pressure peak was measured by ABPM examination.The patients were divided into three groups according to the morning blood pressure peak.Morning blood pressure peak ≤ 30 mmHg were divided into non-Morning blood pressure surge group ( NMS group),morning blood pressure peak ＞30 mmHg were divided into Morning blood pressure surge group ( MS group).The cognitive function scale was determined (MMSE and MoCA).T-test and linear regression analysis were performed.Results MMSE score(27.69±2.04) and MoCA scores(24.85 ± 1.52) in MS group were lower than NMS group (28.87 ± 1.34,26.54± 1.53) ( P ＜0.01 ).MMSE and MoCA scores were negatively correlated with the morning blood pressure peak ( r =- 0.308,- 0.447,P ＜ 0.01 ).Conclusions Elderly masked hypertension patients remained the phenomenon of the morning blood pressure peak,the morning blood pressure peak could lead to cognitive impairment.

Objective To evaluate the prevalence of aspirin resistance in old-aged patients with cerebral infarction and to analyze the mechanisms and clinical predictors of aspirin resistance. Methods 300 old-aged patients with cerebra] infarction were selected and the platelet aggregation ratio was determined by nephelometry with CHRONO-LOG PA-meter. And some information of these patients, such as age, sex, smoking, taking non-steroid anti-inflammatory drug (NSAD)or proton pump inhibitor (PPI), obesity, coronary artery disease (CAD), peripheral vascular disease, hyperpiesia, diabetes and hyperlipemia were recorded. Results 112 cases (37.33%) were aspirin sensitiveness, 108 cases(36.0%) were aspirin semi-resistance and 80 cases (26.67%) were aspirin resistance. These cases were divided into two groups. One was aspirin sensitive (AS) group, which included 112 patients of aspirin sensitiveness. The other was aspirin resistant (AR) group, which consisted of 188 patients of aspirin semi-resistance and aspirin resistance. The prevalence of CAD, hypercho]esteremia and RBC count in AR group was higher than that in AS group The percentage of patients who took NSAD, PPI and smoke in AR group was also higher than that in AS group. Conclusion Aspirin resistance existed in old-aged patients with cerebral infarction to great extent, and which was correlated with CAD, hypercholesteremia, smoking, RBC count, taking NSAD and PPI.

Objective To evaluate the value of HE4 ,CA125 in the diagnosis of epithelial ovarian cancer (EOC) .Methods A to‐tal of 54 samples with epithelial ovarian cancer ,64 suspicious benign pelvic mass ,and 60 health controls were consecutively enrolled in this study .Results Good diagnostic performance in discriminating benign from EOC patients was obtained for CA125 and HE4 . Serum level of HE4 of the patients in the three group were 189 .94 pmol/L ,56 .74 pmol/L and 46 .36 pmol/L .Levels of CA125 were 89 .39 U/L ,45 .11 U/L and 34 .24 U/L .There were stastically significant differences between the groups(P<0 .05) .The ser‐um HE4 and CA125 levels of the patients with ovarian cancer at stage Ⅲ ,Ⅳ(HE4=236 .25 pmol/L ,CA125=206 .35 U/L) were significantly higher than the cases at stage Ⅰ ,Ⅱ(HE4=96 .36 pmol/L ,CA125=67 .8 U/L P<0 .05) .Benign pelvic mass as con‐trol ,the specificity (SP) was 86 .6% ,sensitivity (SN) was 82 .6% ,positive predictive value and negative predictive value of the ser‐um HE4 were 85 .71% ,71 .67% ,73 .84% ,and 84 .31% respectively .SN of CA125 was 86 .67% ,higher than that of HE4 (71 .67% ,P<0 .01) .The area under curves (AUC) of HE4 was 0 .87 higher than that of CA125 (0 .81) ,(P<0 .01) .Combing de‐tection of ovarian cancer was higher than that of HE4 and CA125 alone .SP was 95 .15% ,negative predictive value was 92 .13%(P<0 .01) .Conclusion Overall ,the level of serum CA125 and HE4 increase significantly ,which showes well diagnostic perform‐ance to EOC from benign diseases .The combined detection of CA125 and HE4 could improve the diagnostic power in cervical cancer prominently ,so it has great reference value in the diagnosis of epithelial ovarian cancer .

OBJECTIVE:To control the drug quality risk in drug withdrawal links of hospital pharmacy,and provide reference for the application of quality risk management(QRM)in hospital pharmacy. METHODS:Drug QRM was developed in drug with-drawal links through risk identification,risk assessment,risk control,risk assessment and other steps. Using the incidence of risk factors and reusable rate of withdrawal drug as indexes,related data of before(Jul.-Dec. 2015)and after(Jan.-Jun. 2016)devel-oping QRM in our hospital were compared to evaluate the effect of drug QRM. RESULTS:Determining whether specific storage drugs kept the required storage conditions,whether the numbers of withdrawal drugs counted to minimal packaging and other 5 fac-tors were high-risk factors(the risk score of each factor>4 points);control measures were taken separately for high risk factors, then high-risk factors were reduced to acceptable levels(risk score<4 points). After developing QRM,the incidence of risk factors were reduced than before(reduce 1.35%-6.19%),reusable rate of withdrawal drug was increased(98.64% vs. 86.32%)(all P<0.05). CONCLUSIONS:Developing QRM in drug withdrawal links of hospital pharmacy can reduce the drug quality risk.

Background and purpose:Fumagillin is an inhibitor of type 2 methionine aminopeptidase that can block blood vessel formation. However, its molecular mechanism and therapeutic value in colon cancer still remain to be elucidated.In this study, the effect of Fumagillin on the growth of colon cancer was examined. Methods:Twenty mice were divided into 4 groups and injected subcutaneously with 5?105/L WiDr or HT-29 cells in 200 ?L phosphate-buffered saline (PBS) respectively. After 4 weeks, intraperitoneal injections of Fumagillin (0.1 mg/kg), Cyclo (1 mg/kg), or both were given every 2 days for 4 weeks. The tumor weight and microvessel density (MVD) were examined. Geneexpression profiles were examined by microarray analysis of human umbilical endothelial cells (HUVECs). Results: The Fumagillin-treated mice showed smaller tumor mass and lower MVD-CD105 levels than control ones. In vitro proliferation and tube formation of HUVEC was also significantly decreased by Fumagillin. Microarray analysis of Fumagillin-treated HUVECs showed up-regulation of 71 genes and down-regulation of 143 genes. Expression changes were involved in cell proliferation, migration, adhesion and gene transcription. Quantitative real time-polymerase chain reaction and Western blot revealed decreased expression of cyclin E2, activated leukocyte cell adhesion molecule (ALCAM), and intercellular adhesion molecule-1 (ICAM-1) genes in the presence of Fumagillin. Conclusion: Fumagillin was found to suppress colorectal cancer growth by suppressing angiogenesis. The down-regulation of cyclin E2, ALCAM and ICAM-1 by fumagillin may be involved in the anti-angiogenesis.

Objective:To prepare the monoclonal antibodies against chicken CARP.Methods:The chicken CARP cDNA encoding the N-terminal 110aa length of encoding region was cloned into prokaryotic expression vector pET28b.The BALB/c mice were immunized with purified the recombinant protein,spleen cells of mouse were fused with SP2/0,and the positive clones were screened by indirect ELISA.The properties of McAb were analyzed by ELISA and Western blot.Results:Two hybridomas were proved to have the capability of stably secreting McAb against chicken CARP,designated as 4A8 and 4E6,the subtype of both was IgG1,and the light chain was ?.The titers of ascites were 3.2?104 and 1.28?105 respectively.The Western blot results suggested that they could recognize chicken CARP protein.Conclusion:Two murine hybridomas secreting anti-chicken CARP McAbs have been successfully obtained.

Objective To evaluate the role of double stapling technique in low rectal anastomosis that can save anus.Methods 114 patients with low rectal cancer from June 1994 to January 2002 were treated by low anterior resection of the rectal carcinoma in which the double stapling technique was used,were valuated and the experience was presented.Results Operations of all the 114 patients were successful. Complication included anastomotic fistula in 4 patients (3.5%)and anastomotic stenosis in 5 patients (4.4%) and they were healed by irrigating ?draining the wound and enlarging anus respectively.Conclusion The low anterior resection of the low rectal carcinoma which can save anus becomes safe and time-saving .

Thoracoscopic esophagectomy is an alternative to open thoracotomy in treatment of esophageal carcinoma, but its role in esophageal surgery is still controversial. Between May 2000 and May 2002, 9 patients affected by esophageal carcinoma underwent esophagectomy with thoracoscopic dissection of the esophagus. Seven patients were male, 2 were female,and the mean age was 51 (range, 42～56) years.One patient had the carcinoma at cervical segment, 2 at upper third thoracic segment, 5 at middle third, and 1 at lower third.All tumors were squamous cell type and were below stage II.Thoracoscopy and cervical esophagogastrostomy were successfully performed in 8 patients except in one case, in whom conversion to thoracotomy was necessary because of extensive tumor invasion.Thoracoscopic dissection took an average of 70 (range,40～120) minutes and the mean operative time was 252(range,230～270) minutes. the mean operative blood loss was 250ml (range,150～400ml) and the mean number of thoracic lymph nodes harvested was 7(range,5～12).One patient experienced a cervical infection,which healed with conservative treatment.One patient had a temporary left recurrent nerve palsy that disappeared during the following 6 months.These initial data indicate that thoracoscopic esophagectomy is safe and feasible. The short term result of thoracoscopy is comparable with that of open thoracotomy, and the long term result and its role in esophageal surgery deserve further investigation.

Objective With the development in optics and video systems, video assisted thoracoscopic surgery (VATS) in the diagnosis and treatment of esophageal lesions has come to clinical use. The experience with the method in 12 patients admitted to the surgical department of the General Hospital of PLA from Oct.1993 to Sept.2001 was summarized. Methods Of the 12 patients (male 10, female 2) with the age ranging from 34 to 63, 10 were suffering from malignant tumors (9 squamous carcinoma, 1 adenoid cysticcarcinoma) with 5 in TNM stage 1, and 5 in stage 2, and 2 were having benign tumors (1 esophageal leiomyoma, 1 esophageal cyst). In 7 patients with malignant tumors, esophagectomy was performed through the right thorasic cavity followed by asophagogastrostomy in the neck, and in 3 patients the anastomosis was done in the right thoracic cavity. A left thoracoscopic extirpation of esophageal leiomyoma and esophageal cyst was performed in patients with benign tumors. Thoracotomy was necessary in 3 patients. All patients were ventilated with a double lumen endotracheal tube, so that only the ipsilateral lung collapsed. Results There was no operative mortality in the group. Mean time for freeing the esophagus through thoracoscope was 70 minutes, and mean overall operation time was 252 minutes. 7 enlarged mediastinal lympha nodes were excised. The mean postoperative drainage volume was 180ml/24h and the mean duration of drainage tube was 2 days. The patients were discharged from the hospitals 9～13 days after the operation. Two postoperative complications occurred, one presented as left recurrent laryngeal nerve injury and the other as incision infection. Conservative therapy was given and recovery was uneventful. Conclusions As a minimally invasive surgical technique, VATS was a feasible and effective option in the treatment of esophageal lesions. Complications of VATS were similar to that of conventional open chest surgery. There is still controversy with regard to esophageal resection with VATS for malignant tumors, therefore further investigation is necessary.