Objective To investigate retrospectively the clinical characteristics of hospitalized ulcerative colitis(UC)patients of our department,and evaluate the diagnosis and treatment.Methods The cases of UC patients from 1989 to Jun 2005 were retrospectively reviewed. We analyzed the patients' symptoms,diagnosis,and treatment.Results There were 155 cases reviewed. The sex ratio(M/F)was 1.54∶ 1. The average age of patients was 41.8. The peak age of onset was 20~30. 32.3% of our cases were mild type,and 41.3% were moderate type,severe type were 26.5%. Of these pateints,52.9% were pancolitis,and 39.4% were chronic recurrent type,which was very common. Most cases(72.9%)were diagnosed by clinic combined with endoscope and pathology. Most of the severe UC responded well to the drug therapy. Very less(4.5%)had to underwent surgery. No patient died.Conclusion Most of our patients are mild or moderate type,and they respond well to drug some severe and moderate types need steroids and immuno suppressor. The extracolonic manifestation rate(12.9%)and operation rate(4.5%)are low.

Objective To evaluate the value of the mRECIST criteria in assessing the efficacy of transcatheter arterial chemoembolization(TACE) combined with sorafenib in the treatment of hepatocellular carcinoma (HCC).Methods A total of 35 patients who were treated with a combination of TACE and sorafenib for unresectable hepatocellular carcinoma fulfilled the mRECIST and RECIST criteria in our hospital from June 2011 to November 2012.Enhanced CT and/or enhanced MRI were used before (baseline) and after (3 month reexamination) combination treatment in our hospital.The mRECIST and RECIST criteria were used to evaluate the efficacy,and these efficacy assessments were compared.Results In the RECIST criteria,complete remission (CR) was 0％,partial remission (PR) was 2.9％,stable disease (SD) was 85.7％％,and progressive disease (PD) was 11.4％％.In the mRECIST criteria,CR was 8.6％,PR was 51.4％,SD was 34.3％,and PD was 5.7％.For the RECIST criteria,the objective response rate (CR+-PR) was 2.9％,the disease control rate (CR+PR+SD) was 88.6％,and the disease progression rate was 11.4％.For the mRECIST criteria,the objective criteria was 60％,the disease control rate was 94.3％,and the disease progression rate was 5.7 ％.The difference between the efficacy assessment results of mRECIST and RECIST was statisti cally significant(P＜0.001).Conclusion The mRECIST criteria can evaluate the efficacy of target le sions based on viable tumors,which is more adaptive to TACE and targeted drugs with new mecha nisms.

Objective To investigate the clinical efficacy of transarterial chemoembolization (TACE) combined with sorafenib for the treatment of inoperable hepatocellular carcinoma (HCC), and to discuss the influence of treatment interval on the survival time. Methods During the period from July 2008 to May 2011 at authors’ hospital, a total of 50 patients with inoperable HCC were treated with TACE together with sorafenib. The treatment intervals between each TACE procedure were recorded. The results were analyzed. Results Up to Dec. 31, 2011, the median follow-up time of the 50 patients was 310 days. The mean interval between TACE treatments was 69 days before the combination treatment was employed , while the mean interval was 112 days after the combination treatment started , and the longest interval was 648 days. Conclusion Combination treatment TACE with sorafenib can remarkably prolong the treatment interval in patients with inoperable HCC, thus the patient can get more survival benefits.

Objective To investigate the application of C- arm CT imaging technique in evaluating the efficacy of transarterial chemoembolization(TACE) for hepatocellular carcinoma(HCC). Methods During the period from Sep. 2012 to Mar. 2013 at authors’ hospital, C- arm CT scanning was employed during the performance of TACE in 80 patients with HCC. The residual active tumor lesions, Lipiodol deposition and the embolization of the feeding arteries after TACE therapy were assessed by C- arm CT plain scan images and the images of early artery phase and parenchymal phase, as well as the post- processing images. The efficacy of TACE was thus evaluated. Results A total of 139 hepatic tumors were detected in 80 patients by C- arm CT imaging. C- arm CT scanning performed immediately after TACE showed that satisfactory result was obtained in 128 lesions of 75 patients(128/139, 92.9%). Fewer, medium and more residual active tumors were seen in 78, 29 and 21 lesions respectively, while dense, moderate and thin Lipiodol deposition was seen in 64, 39 and 25 lesions respectively. After TACE therapy obvious decrease in blood supply was demonstrated in 101 lesions, while no obvious decrease in blood supply was seen in 27 lesions. Conclusion C- arm CT scanning after TACE for patients with HCC can conveniently, accurately and comprehensively reveal the residual active tumors, Lipiodol deposition and embolization status of feeding arteries. Therefore, this technique should be regarded as an important means to evaluate the efficacy of TACE.

Objective Explore the individual difference in carbon monoxide (CO) poisoning and analyze whether females were be more resistant to CO poisoning.Methods We collected 207 cases of CO poisoning deaths, and then we analyzed the Carbonyl Hemoglobin (COHb) results sorted by different sources of CO.Results The source of CO had significant impact on the fatal COHb level, but gender was not significant in affecting COHb level. In addition, it is possible that children and elders were less resistant to COHb than adults.

Objective To investigate the effect of paclitaxel and gemcitabine on the expression of nucleosomal binding protein 1(NSBP1) in bladder cancer cell line T24 and its significance. Methods Reverse transcription PCR(RT-PCR) and western blotting were used to detect the expression of NSBP1 in bladder cancer cell T24 treated by different concentration(10% ,40% ,80% IC50) of paclitaxel and gemcitabine for 48 hours. Results RT-PCR showed that relative optical density (OD) of NSBP1 in bladder cancer cell T24 treated by 0%, 10%,40% and 80% IC50 paclitaxel were 0.392 ±0.024, 0.227±0.037, 0.135±0. 063 and 0.091 ±0.017, respectively (P＜0.05). Relative OD of NSBP1 in bladder cancer cell T24 treated by 0%, 10%, 40% and 80% IC50 gemcitabine were 0.492±0.044, 0.262±0.031, 0.151±0.014 and 0.089±0.011, respectively. Western blotting showed that relative OD of NSBP1 in bladder cancer cell T24 treated by 0%, 10%,40% and 80% IC50 paclitaxel were 0.473±0.017, 0.252±0.041, 0.194±0.023 and 0.118±0.016, respectively. Relative OD of NSBP1 in bladder cancer cell T24 treated by 0, 10%, 40% and 80% IC50 gemcitabine were 0.581±0.014, 0.201±0.033, 0.135±0.021 and 0.114±0.011, respectively(P＜0.05). Conclusion Paclitaxel and gemcitabine can decrease the expression level of NSBP1 in bladder cancer cell line T24 both in mRNA and protein levels, so NSBP1 may be one of the targets of chemotherapy.

Objective To evaluate the impact of preoperative renal artery embolization in renal cell carcinoma patients with venous tumor thrombus.Methods A total of 249 RCC patients with venous tumor thrombus underwent radical nephrectomy and thrombectormy in our hospital.Seventy-four patients received preoperative renal artery embolization while other 175 patients did not.The related items were analyzed.The tumor thrombus level was divided into 5 groups with American Mayo clinic classification system.Considering the significant difference in tumor situation and treatment strategies, we took the hepatic vein as a cut-off line, dividing patients into two subgroups, the early and advanced tumor thrombus groups.There were 208 patients in the early tumor thrombus group and 41 patients in the advanced group.The related items were analyzed respectively.Results Patients in the embolization group tended to have larger tumors and higher percentage of advanced tumor thrombus.For all patients, the embolization group had longer operation time [(4.8 ±2.1) h vs.(4.1 ±2.2) h ,P <0.05] and greater median blood loss (900ml vs 500 ml,P <0.05), compared to the non-embolization patients, and RAE did not show benefits on perioperative outcomes seemingly.However, subgroup analysis of patients with advanced tumor thrombus ( above hepatic vein) , in spite of the larger size of tumor, preoperative RAE showed significant benefits on reducing operation time [(7.0 ±1.7)h vs.(8.2 ±1.8)h, P<0.05)] and intraoperative blood loss (2 000 ml vs.3 000 ml, P<0.05) and decreasing blood transfusion (1 525 ml vs.2 050 ml ,P>0.05).Conclusion Preoperative RAE may be more appropriate for patients with advanced tumor thrombus because of its benefits in reducing operation time, intraoperative blood loss and elevating the operative security.

Observations were conducted on 11 kinds of tissues and organs(brown adipose tissue, thymus gland, blood, heart, lungs, muscle, bone, kidneys, spleen, liver, and intestine) in experimental animals, which were fed on crops from endemic areas of Keshan disease and non-endemic areas for 8-13 weeks. The absorption and distribution of 75Se (Na2 SeO3) in above tissue and organs were studied. Results revealed that the absorption of Na2-SeO3 in experimental group fed on crops from endemic area was higher than control group fed on crops from non-endemic area. The gradient of distribution of 75Se in various organs was regular: The highest absorption was in kidneys, the lesser was in liver, spleen and thyrnus, the least was in muscle, heart and bones.In one week observation, the contents of 75Se changed as time passed, but the fluctuating changes of the two groups were different.The regular differences of 75Se absorption as above, revealed a distinction between endemic and non-endemic crops. Under the influences of the crops on experimental animals, there appeared more or less a condition of selenium deficiency, which proved that the soil-water-food chain had apparently influenced the selenium metabolism of the organisms.

Objective To investigate the charateristics and prognostic value of computed tomography (CT) of retropharyngeal lymphadenopathy (RLN) in nasopharyngeal carcinoma (NPC).Methods From 1991 to 2006, CT images were analyzed for 588 patients with histologically proven NPC treated with radiation therapy in our hospital.The survival rate was evaluated by Kaplan-Meier method.Results RLN metastases were presented in 392 patients, with unilateral side in 254 patients and bilateral sides in 138 patients.The 5-year distant metastasis-free survival (DMFS) rate of patients with and without RLN metastasis was 66.6% and78.6%(χ2 = 10.78,P=0.005) ,with 69.7% and 62.2%(χ2 =2.31,P=0.129) for patients with unilateral and bilateral sides involvement.The DMFS rate was similar between the mild and moderate enhancement of RLN (67.6% and 58.9% ,χ2=2.77,P =0.096).The survival rate of RLN with homogeneous density was better than heterogeneous density (71.5%, 53.3% and 32.5%,respectively, χ2= 10.51, P = 0.001, χ2= 24.28, P = 0.000).The survival rate of patients with well boarded RLN was better than those with ill boarded RLN and obviously adjacent tissue involvement (65.5%, 51.8%and 50.0% , χ2 =8.20,P=0.004, χ2 =5.31 ,P=0.021).Conclusions The prognosis is poor with RLN metastasis, lymph node enhancement, heterogeneous density in nodes and ill boarded RLN.

Objective To investigate healthcare-associated infection(HAI)in patients in a cancer hospital,provide reference for controlling HAI in cancer patients,and guide rational use of antimicrobial agents.Methods Clinical data of patients in a cancer hospital between August 2006 and July 2012 were analyzed retrospectively.Results The incidence of HAI case was 1 .53% (2 060/134 389),and annual incidence showed a downward trend.The main in-fection site was lower respiratory tract (46.46%,n=957),followed by bloodstream (15.63%,n=322),abdominal and pelvic (14.03%,n=289).The main pathogens were Pseudomonas aeruginosa (16.16%,n=350),Staphylo-coccus aureus (9.97%,n=216),Klebsiella pneumoniae (9.79%,n=212),Escherichia coli (9.65%,n=209), and Candida albicans (6.51 %,n=141 ).Gram-negative bacilli,including Klebsiella pneumoniae and Escherichia coli ,were sensitive to carbapenems and β-lactamase inhibitors.Conclusion Lower respiratory tract is the major HAI site in patients with cancer,and gram-negative bacteria are the main pathogens.Carbapenems andβ-lactamase inhibitors are recommended for the empirical treatment of HAI in cancer patients.