Objective To investigate the effect and mechanism of oxycodone on the treatment of cancerous neuropathic pain in advanced colon cancer.Methods 80 cases of advanced colon cancer in department of anorectal of Shaoxing Second Hospital of Zhejiang Province from March 2015 to March 2016 were selected and randomly divided into two groups with 40 cases in each group.The control group were treated with routine clinical treatment, and the experiment group were treated with oxycodone treatment on the basis of the control group.The levels of pain score, quality of life score, serum β-EP, calcitonin gene related peptide (CGRP) and prostaglandin E2(PGE2), clinical efficacy and adverse reaction incidence rate changes were compared between two groups before and after treatment.Results Compared with before treatment, levels of the pain score, serum β-EP, CGRP and PGE2 decreased in two groups after treatment, after treatment, the experiment group pain score (2.38 ±0.34), quality of life score (28.39 ± 3.97), serumβ-EP (228.71 ±34.92), CGRP (22.46 ±3.15), PGE2 level (2.45 ±0.35) and the incidence of adverse reactions was 17.50%, were lower than that of the control group the pain score (3.51 ±0.51), the quality of life score (33.53 ±4.76), serum β-EP (246.67 ±34.83), CGRP (30.36 ±4.25), PGE2(3.36 ±0.47) and the incidence of adverse reactions was 40.00%, the difference was statistically significant (P<0.05), the total effective rate of the experiment group was 87.50%, higher than that of the control group, the total effective rate was 60.00%, the difference was statistically significant (P<0.05).Conclusion Oxycodone can effectively reduce pain in patients with advanced colon cancer neuropathic pain score, improve the quality of life, and has high clinical efficacy and safety.

Cullinl is a member of the cullin genome.The cullin1 assembly complex has typical ubiquitin ligase activity,and mediates cell cycle proteins,especially cancer-associated protein degradation process,an then effectively regulates the cell cycle progression.Cullin1 play an important role in the genesis and development of malignant tumors.

Objective To investigate the pathogenesis, clinical manifestations, imaging features, and differential diagnosis of intraosseous ganglion. Methods Clinical and imaging features of 15 cases (5 men, 10 women; mean age 39.7 years) with intraosseous ganglia were retrospectively analyzed. There were 17 lesions, including 6 acetabula, 4 lunate, 3 proximal ends of tibia, 1 major tuberculum of humeral, 1 femoral head, 1 scaphoid, and 1 phalange. Results (1) Common radiological features included a unilocular or multilocular cyst surrounded by a full and thin rim of sclerotic bone in the subchondral epiphysis without any signs of degenerative joint disease. (2) Lesions were displayed as well defined round radiolucent defect or multi cystic changes with surrounding bony sclerosis or cystic and expansile change with irregular shape on CT scans. (3) CT showed an intraosseous ganglion communicating with adjacent joint in 1 patient. (4) CT values of the lesions were between 15- 80 HU. (5) Gas in the cyst could be seen in 3 cases. Conclusion Combined with patient′s age, lesion distribution, clinical manifestations, and imaging features, it is possible to make a correct diagnosis of intraosseous ganglion.

Attention to the training of research ability for undergraduate students is the development trend of medical education.Peking University Health Science Center (PUHSC),has made the top design of such research ability training system including courses,lectures,lab practice,publications and various research projects,as well as the atmosphere of scientific research.The training program achieved good results.In the future,PUHSC will further update new concept of teaching,and improve the teacher's training and incentive mechanism.

Objective:To optimize the ethanol extraction technology for Xiaoluo granules. Methods:The extraction technology for the ethanol dissolvable ingredients in 10 kinds of medicinal materials was optimized by orthogonal experiment. The weighted sum of ba-icalin content and the dry extract rate as the index, 4 influencing factors with 3 levels each were optimized by L9 (34 ) orthogonal table. Results:The optimal ethanol extraction conditions were as follows:the medicinal material was soaked by 10-fold 50% ethanol solution for 45min, and then extracted by heating reflux for 3 times with 1. 5h each time. Conclusion: The method can effectively extract the ethanol dissolvable ingredients in 10 kinds of medicinal materials, which can be used as the ethanol extraction technology for Xiaoluo granules.

Objective To evaluate the diagnostic effect of intro-operative tissue puncture biopsy and find its influential factors.Methods The clinical data of 94 patients with pancreatic mass treated in our hospital from July 1994 to December 2007 and undergoing intro-operative tissue puncture biopsy were retrospectively analyzed.Results The sensitivity,the specificity,the positive predictive value and the negative predictive value were 74.6%,93.8%,98.0%and 46.9%,respectively.The single factor analysis showed that the size of pancreatic mass,the number of puncture and complicating with pancreatic fibrosis or not were related to the diagnosis of tissue puncture.The multiple factor analysis showed that the size of pancreatic mass(P=0.014)and the number of puncture(P=0.020)were crucial to the diagnosis of puncture.The sensitivity and specificity of intro-operative tissue puncture biopsy for the pancreatic mass less than 25 mm were lower than that for the mass larger than 25 mm (P=0.000).The sensitivity and specificity would be increased as the number of puncture increased (P=0.000).For the mass less than 25 mm,increasing the humber of puncture would improve the sensitivity(P=0.002).Conclusion Intro-operative tissue puncture biopsy is a simple and accurate procedure for differentiating the pancreatic mass.The sensitivity and specificity could be improved by increasing the number of puncture,especially for the patients with pancreatic mass less than 25 mm.

Objective To study the causes of pancreatic fistula following pancreatioduodenectomy, and evaluate the effect of total pancreatic uncinate process resection on the prevention of pancreatic fistula by analyzing the potential aetiology of pancreatic fistula after pancreaticoduodenectomy.Methods The clinical data of 68 patients, who were admitted into the No. 1 ward of Surgical Department of Peking University First Hospital during the period from Jan. 2004 to Jun. 2009, were retrospectively analyzed. The day-average level of amylase higher than 3 times of normal value, as measured from the drainage of peritoneal cavity, serves as the diagnostic criterion of the postoperative pancreatic fistula.Factors relevant to fistula, which result in the abnormal increase of the amylase in the drain, such as the extent of resection of pancreatic uncinate process, the anastomotic manners of pancreas and digestive tract, and the pancreatic fibrosis were statistically analyzed. Results The incidence of pancreatic fistula was 33. 8% according to the diagnostic criterion mentioned above; Single factor analysis showed that the resection extent of uncinate process (P = 0. 000) and the level of serum glucose ( P = 0. 045 ) were correlated with the occurrence of pancreatic fistula. Multivariate analysis identified that the independent risk factor for pancreatic fistula was the resection extent of uncinate process(P =0. 000). Pancreatic fibrosis, the manners of the anastomosis of pancreas and digestive tract were not independent risk factors. Conclusion Total resection of uncinate process could prevent pancreatic fistula from residual pancreatic uncinate process, hence reduce the incidence of pancreatic fistula following pancreaticoduedenectomy.

Objective To compare the oil yield of celery seeds and the contents of 3-n-butylphthalide and the total phthalocyanine lactones of celery seed oil extracted by different methods. Methods Three routine extraction methods involving organic solvent extraction, Soxhlet extraction, steam distillation extraction, as well as subcritical extraction method and supercritical fluid extraction method were used to extract the celery seed oil. The contents of 3-n-butylphthalide and total phthalocyanine lactones were respectively detected by high performance liquid chromatography(HPLC) and ultraviolet visible spectrophotometry. Results The ranges of oil yield and the contents of 3-n-butylphthalide and total phthalocyanine lactones of celery seed oil extracted by different methods were 0.30%-20.02%, 1.40%-10.13%, 4.74%-17.65%, respectively, indicating obvious differences. Conclusion With R134a and butane as the solvents, the subcritical extraction method is better than other extraction methods for the extraction of 3-n-butylphthalide. With dimethyl ether as the solvent, the subcritical extraction method is the best for the extraction of total phthalocyanine lactones.

Objective To compare the clinicopathological characteristics and prognosis of primary Waldeyer's ring non-Hodgkin lymphoma.Methods From Jan 2008 to Dcc 2013, 50 patients with primary Waldeyer's ring non-Hodgkin lymphoma were retrospectively analyzed.Kaplan-Meier method was used for survival analysis.Log-rank method was used for univariate analysis.Results Waldeyer's ring diffuse large B-cell lymphoma (DLBCL) and extranodal nasal-type NK/T-cell lymphoma (ENKTCL) were the common pathological types of primary Waldeyer's ring non-Hodgkin lymphoma accounting for 56 ％ (28/50) DLBCL and 34 ％ (17/50) ENKTCL, respectively.The age at onset of ENKTCL patients was younger than that of DLBCL patients.Two groups had different primary sites, including 50.0 ％ (14/28) of DLBCL with tonsillar disease and 88.2 ％ (15/17) of ENKTCL with nasopharynx disease.The short phase effect of DLBCL group was higher than that of ENKTCL group.The overall survival (OS) and progression-free survival (PFS) rates had significant differences between DLBCL and ENKTCL (x2 =4.45, P =0.035;x2=6.47, P =0.011).Conclusion DLBCL and ENKTCL are different in clinical characteristics.The short phase effect and prognosis of DLBCL are obviously better than those of the ENKTCL.

ObjectiveTo analyze the underlying causes of postoperative gastrointestinal (CI)bleeding after pancreaticoduodenectomy and to discuss the strategies in diagnosis,prevention and management.MethodsThe clinical data of 331 patients who were admitted to the Surgical Department of the First Hospital,Peking University from Jan. 1998 to Jan. 2010 was retrospectively analyzed.ResultsThe overall postoperative morbidity was 37.2 ％,with a bleeding complication rate of 6.7 ％,and a GI bleeding rate of 1.5％.For postoperative GI bleeding,the main bleeding sites were from the pancreaticointestinal anastomosis (40.0％) and the gastrointestinal anastomosis (20.0％). Embolotherapy using vascular intervention alone (20.0％),open abdominal operation following vascular interventional therapy (40.0 ％ ) and open abdominal operation alone (40.0 ％ ) were used to control GIbleeding.ConclusionsThe common bleeding sites in the GI tract were at the pancreaticointestinal anastomosis and the gastrointestinal anastomosis. The main procedures used to control bleeding were embolization using vascular interventional therapy,endoscopic therapy and open abdominal therapy.