Objective To investigate the diagnosis and treatment procedures of primary colonic malignant lymphoma(PCML). Methods Data of clinical and pathological findings, surgical treatment and prognosis of 12 cases with PCML verified by pathology were retrospectively analyzed, workups of barium clysma,colon-scopic examination and multislice spiral computed tomography(MSCT) were compared to evaluate their role in diagnosis. Results The classic presentation of PCML included abdominal pain, abdominal bulge, bowel obstruction, gastrointestinal bleeding, and serum levels of tumor markers were within the normal ran-ges. Six cases underwent procedure of barium clysma, and anomaly appeared in 2 cases, however, there were no indications of lymphoma, 6 cases underwent colon-scopic examination, anomaly in 3 cases, of which 1 revealed possibility of lymphoma, 10 cases underwent MSCT; 9 cases demonstrated tumor origin by CT scan of which diagnosis was established in 5 cases. All the patients underwent surgery. No incidence of peri-opreative death happened. Non-Hodgkin' s lymphoma was confirmed in all of cases. For all of the cases a T-cell origin was in 1 case and a B-cell origin in other cases. Ten cases were administrated postoperative chem-otherapy. 11 cases were followed up, and the overall 1-year and 3-year survival rates were 81.9% (9/11) and 54.5% (6/11), respectively. Conclusions Typical presentation is still lacking for PCML, workups of barium clysma and colon-seopic examination are little sensitive and specific to make the diagnosis. However, MSCT is useful in diagnosing PCML with its characteristic information as well as clinical findings. Surgical management and postoperative adjuvant-chemotherapy would be likely the optimal therapeutic maneuver of this disease in early period.

Objective To observe inhibiting effect of endostatin on subcutaneous transplant tumor of breast carcinoma, and to illuminate the therapeutic effect of endostatin in the cancer. Methods The effect of en-dostatin on MCF-7 cell proliferation was studied by MTr. The model of MCF-7 cell transplant tumor on nude mice was constructed. Endostatin was injected intradermally around the transplant tumor. Inhibition effect on the tumor was observed. Results Endostatin with the concentration of 10 μ/mL and 15 μg/mL can inhibitMCF-7 cell proliferation effectively (P < 0. 05 ). After endostatin injection, tumor weight, volume and mi-crovessel density decreased significantly(P < 0.05 ). Conclusion Endostatin can inhibit breast carcinoma proliferation through inhibiting angiogenesis and the tumor cell itself.

Objective To investigate the efficacy of bend-assisted laparoseopie fight bemicolectomy for right colon carcinoma in elderly obesity patients. Methods 20 obesity eases undergoing hand-assisted laparoscopic right bemicolectomy were retrospectively reviewed, and compared with 25 obesity cases with transabdominal right hemicolectomy in the same period. The safety, recovery, eradication and stress reaction were compared. Results In hand-assisted laparoscopic group, there were less bleeding loss, rapid recovery to normal temperature and gastrointestinal function,ont of bed activity, short-time hospitalization compared with transabdominal group(P <0.01). There were no differences in operative time, numbers of lymph nodes removed, postoperative complications and length of specimen between two gronps(P > 0.05). CRP, IL-6, adrenocorticotrophic hormone (ACTH) and cortisol were more significantly increased in two groups after operation than before operation (P < 0. 05) , and this increase was moreprominent in transabdominal group than in hand-assisted laparoacopic group (P < 0.05). Conclusion Hand-assis-ted laparoscopic right hemicolectomy is a safe and effective way for elderly obesity patients,especially in postoperative recovery and physical stress reaction.

Objective To collect the demographic,lifestyle and clinical factors of patients with cerebrovascular disease,and analyze the vascular cognitive impairment(VCI) factors and set up high-risk factors model.methods 505 patients with cerebrovascular disease hospitalization in department of geriatrics and neurology in hospital from October 2014 to October 2016 were enrolled.According to the questionaire survey data of demographics,lifestyle and clinical factors,the patients were divided into training set (421 cases) and test set (84 cases),and training set were divided into the non-VCI set (225 cases) and VCI set (196 cases).Analyzed the influence factors of VCI in patients with cerebrovascular disease by decision tree algorithm,and compared it with the Logistic regression analysis and chi-square and established the decision tree model for risk factors of VCI.Result sAccording to the VCI decision tree model,cross validation model recognition accuracy was 73.63%,while test set prediction accuracy was 73.81%.Alcoholism,hobbies,education level,tea drinking,diabetes,hypertension,diet,age,sleep and physical exercise were classification of node variables,while drinking was the root.The probability of VCI had significant difference (P<0.05) in the crowds with different risk factors.According to Result s of Logistic regression analysis,education level,drinking,exercise and diabetes were independent risk factors for VCI,while the model prediction accuracy was 66.98%,and test set prediction accuracy was 53.57%.According to the ROC curve of the decision tree model and the Logistic regression model,the decision tree model AUC was 0.737 (95%CI 0.688 to 0.786),and the Logistic regression model AUC was 0.664 (95%CI 0.612 to 0.717).Conclusion It is suggested that the decision tree model might be superior to logistic regression model in the prediction accuracy for VCI of patients with cerebrovascular disease.The alcoholism,diabetes,high blood pressure,high fat diet and insomnia are risk factors of VCI,while hobbies,high level of education,physical exercise and drinking tea can be the protective factors of the VCI.

Objective To investigate the antitumor effect of the recombined adeno-associated virus encoding caveolin-1 regulated by progression-elevated gene (PEG) promotor on the angiogenesis of implanted human hepatocellular carcinoma(HCC) cell lines in a nude mouse model. Methods HepG2 cells were inoculated subcutaneously into NOD/SCID mice, and animals were treated with rAAV-PEG-caveolin-1 after tumor cell innoculation. The fluorescence ratio of Evans blue to FITC-dextran was used to assess the changes of microvasculature permeability of the tumor. Western blot and immunohistochemical analyses were employed to detect PECAM-1 expression in tumor microvascular endothelium and microvessel density(MVD), respectively; NOS activity was assessed by citrulline generation. Tumor growth was observed and tumor cell apoptosis in tumor tissues were measured by TUNEL. Results Tumor growth was significantly inhibited in mice injected with rAAV-PEG-caveolin-1. The administration of rAAV-PEG-caveolin-1 significantly blocked vascular leakage in the tumor microcirculation. The levels of PECAM-1 protein detected by Western blot were markedly reduced in rAAV-PEG-caveolin-1-treated mice, and there were fewer MVD in tumors from caveolin-1-treated mice, while NOS catalytic activity was much lower in rAAV-PEG-caveolin-1-treated mice compared to the control and empty vector-treated animals. TUNEL demonstrated significant induction of tumor cell specific apoptosis. Conclusions rAAV-PEG-caveolin-1 can reduce tumor progression through blocking microvascular formation by inhibiting eNOS.

Objective To investigate the impairment and the effect factors of encoding of episodic memory in patients with cerebral infarction. Methods 112 cases cerebral infarction patients and 115 healthy elders as controls were tested for episodic memory encoding with episodic pictures accomplished in computer, and compare the differences of encoding of episodic memory between the two groups. Results The remember indexes ( REM )of encoding memory test in patient group was significantly lower than that in control group( (70.81 ± 6.08 )vs (84.67 ± 4.49), P ＜ 0.01 ). The REM in patients with different impaired areas was significantly different ( (65.88 ± 5.73 ), (68.92 ± 4.65 ), (73.39 ± 6.20), ( 73.53 ± 3.44), P ＜ 0. 01 ). The REM in frontal lobe infarction group was significantly lower than that in temporal lobe infarction group (P ＜ 0.05 ), and in temporal lobe infarction group was significantly lower than that in basal ganglia infarction group and corona radiate infarction group (P＜0.05, P＜0. 01). The REM in cortex infarction group was significantly lower than that in under cortex group ( ( 67.37 ± 5.40 ), ( 73.46 ± 4.99 ), P ＜ 0.01 ). The REM in small cerebral infarction group was significantly higher than that in large cerebral infarction group( (72.67 ±4.47 ), (67.56 ± 6.18 ), P＜0.01 ). The size of cerebral infarction diameter was related with the REM( r= -0.39, P＜0. 01 ). The REM among control group,infarction with atrophy group, and infarction without atrophy group were significantly different( (67.03 ± 6. 17 ),( 72.84 ± 5. 00 ), ( 84.67 ± 4.49 ), P ＜ 0. 01 ). The REM in infarction with atrophy group was significantly lower than that in infarction without atrophy group and control group( both P＜0.01 ) ,The REM in infarction without atrophy group was significantly lower than that in control group (P ＜ 0.01). Conclusion The encoding of episodic memory was impaired in cerebral infarction patients. The infarction parts,size of infarction area and atrophy was related with the impairment of encoding of episodic memory.