Objective To investigate the therapeutic effect of arterial interventional chemotherapy on bulky cervical cancer. Methods One hundred and twenty-six patients with bulky cervical cancer were randomly divided into two groups. Arterial interventional chemotherapy group(n =74, C gronp), and radiotherapy group(n =52 R group). Patients in C group underwent internal iliac arterial infusion chemotherapy by using Seldinger technique. The chemotherapy regimens of cervical squamous cell carcinoma were prescribed including cisplatin and BLM, and cervical adenocarcinoma were prescribed including cisplatin and ADM and VCR. Patients in R group were only given radiotherapy Ir192 high-dose rate intracavitary radiotherapy was performed with A point dose at 24 Gy. Both groups of patients were followed up after two weeks. Results The tumor regression rate of C group was 93.24 %, significantly higher than 71.15 % in R group(P 0.05). The 3-year recurrence rate between the two groups had obvious difference(P 0.05). Conclusion Neoadjuvant chemotherapy can effectively reduce tumor volume, and postoperative 3-year recurrence rate, increases surgery rate on bulky cervical cancer. But the effect on long-term survival rate needs to be evaluated further through long-term follow-up.

Objective The research is to understand students' mobile learning (M-learning) attitudes and behaviors,and provide a reference for the development of mobile learning systems and learning resources.Methods The research used the method of questionnaires to investigate nursing students' present situation of M-learning.Results About 2/3 of the students were so eager to have targeted mobile tutorial course.Most of the students were not satisfied though there were a lot of resources.More than 2/3 of the students used telephone to surf on the internet almost every day (mainly on reading web pages and communicate with classmates using chat software,see / write blog lowest).The mobile learning time of more than 60％ students was not more than 10 minutes.1/3 of students used the time between 10 to 30 minutes.The highest cost that students spent on monthly mobile learning was less than 10 Yuan,accounting for the total number of 1/3.Compared with the junior college students,the proportion of undergraduates who support to use phone to surf on the internet was higher.Undergraduate students were more likely to read pages and see multimedia,most of them hope to see courseware within 2 to 5 minutes,etc.Conclusions Nursing students have good hardware conditions on mobile learning.Students are recognized on mobile learning.The current mobile learning resources are chaos and lack of design so that it hindered the development of mobile learning.Mobile learning courses should be short and pithy,rich and colorful.Application design of mobile blog in mobile learning needs to be strengthened.Generally speaking,undergraduate college students are more actively to take mobile learning into their learning and life.

OBJECTIVETo evaluate the colorectal cancer incidence among compliers and non-compliers in the population of colorectal cancer screening area, and to provide scientific basis for health economic evaluation of cancer screening.

METHODSBy screening different years build queue, to retrospectively compare the data of colorectal cancer screening from January 1, 2008 to December 31, 2013 and the data of cancer registration, and to analyze the colorectal cancer incidence rates among screening compliers and non-compliers, and to compare the average intervals between the end of screening and clinical cancer diagnosis using SPSS 19 statistical software. Mantel-Haenszel test was performed with a statistical significance level of α = 0.05.

RESULTSThe non-compliance rate was 38.24% among males and 28.49% among females (P < 0.001). The non-compliance rate was highest in the 40-44 and 70-74 years age groups and lowest in the 50-59 years age group. The compliers of the screening were followed up for 476,049 person-years, and there were 51 cases of colorectal cancer, with an incidence rate of 10.71/100,000. The non-compliers of the screening were followed up for 259 183 person-years, and there were 66 cases of colorectal cancer, with an incidence rate of 25.46/100,000, which was 1.38 times higher than that of the compliance group (χ2 = 21.699, P < 0.001). The incidence rate of colorectal cancer among subjects who were positive in initial screening but refused to receive an electronic colonoscopy was as high as 164.40/100,000, and the average delay time was 20.8 ± 16.8 months.

CONCLUSIONSThe colorectal cancer screening adherence among women is better than among men, and that of 50-54 years and 55-59 years age groups is better than in other age groups. The subsequent incidence rate of colorectal cancer in the non-compliance group is significantly higher than that of the compliance population.

Adult ; Age Factors ; Aged ; China ; epidemiology ; Cohort Studies ; Colonoscopy ; Colorectal Neoplasms ; diagnosis ; epidemiology ; Early Detection of Cancer ; Female ; Humans ; Incidence ; Male ; Mass Screening ; statistics & numerical data ; Middle Aged ; Patient Compliance ; statistics & numerical data ; Retrospective Studies ; Sex Factors

Objective:To evaluate right heart remodeling and right heart function change after pulmonary resection by echocardiography (ECG) .Methods:A total of 50 patients undergoing pneumonectomy received ECG examination to evaluate right ventricular structure and right heart function change before and after partial pulmonary resection .Re-sults:(1) Compared with before operation , there were no significant changes in right ventricular anterior free wall thickness ,right ventricular ejection fraction on 7d and 30d after operation;(2) Compared with before treatment , there were significant rise in pulmonary artery systolic pressure [PASP ,(20.52 ± 2.46) mmHg vs .(49.65 ± 2.17) mmHg] ,pulmonary artery diastolic pressure [PADP ,(10.82 ± 2.04) mmHg vs .(21.93 ± 1.26) mmHg] and pul-monary artery mean pressure [PAMP ,(13.78 ± 3.67) mmHg vs .(26.67 ± 3.28) mmHg] ,and significant rise in pulmonary vascular resistance [PVR ,(187.69 ± 12.46) dyn .s .cm-1 vs .(368.72 ± 11.94) dyn .s .cm-1 ] on 7d after pulmonary resection , P<0.05 all;all above indexes recovered to normal on 30d after treatment ;(3) Com-pared with before operation ,right ventricular Tei index significantly rose [ (0.36 ± 0.05) vs .(0.69 ± 0.13) , P=0.04] on 7d after operation ,the Tei index recovered to normal on 30d after treatment ,P=0.20. Conclusion:Com-pared with before operation , the PASP ,PADP and PAMP significantly rise on 7d after operation ,they recover to normal on 30d after treatment ;there are no significant change in right ventricular structure .

Objective To investigate the clinical effect of acellular allograft dermal tissue patch used in transvaginal rectovaginal fistula repair.Methods From Jan.2008 to Dec.2011,22 patients with rectovaginal fistula undergoing treatment in Chinese People's Liberation Army General Hospital were studied retrospectively.Twelve patients treated by tissue patch were classified into study group matched with 10 patients with general surgery as controls.Results In study group,11 patients were successfully repaired by their first surgery; one patient was successfully fixed by the second surgery.The successful rate of first operation was 11/12 in study group and 4/5 in recurrent transvaginal rectovaginal fistula.In control group,7 patients were fixed successfully in their first surgeries,the successful rate of first surgery was 7/10.Two primary patients and 1 recurrent patient were successfully fixed by their second surgeries.All of the patients were followed up for (9.0 ± 2.0) months,and no recurrence diseases were observed.Conclusion The transvaginal rectovaginal fistula fixed using acellular allografi dermal tissue patch could get less trauma and higher cure rate.

In China,with the development of medicine,more and more clinical researches are increased.However,along with this development,there are still a lot of problems.In order to normalize the management of clinical researches,make the research results reliable and benefit for patients,several strict aspects of management are taken by our hospital,included standardizing the application procedures,introducing the roles of the academic committee and the ethics committee,strengthening the projects management and researchers training,etc.And all these ways promote the good development of clinical researches of our hospital.

Objective To investigate the application effects of quantitative and qualitative fecal occult blood (FOB) reagent in colorectal cancer screening.Methods With the platform of colorectal cancer screening for early diagnosis and treatment,the original screening methods and process were not changed,individuals underwent colorectal cancer screening,aged from 40 to 74 years old,from four villages of Haining City in Zhejiang Province were selected as study objects.Initial screening included medical history questionnaire and FOB test.The first stool samples were examined both with quantitative and qualitative FOB test,one week later the second samples were detected with qualitative FOB test.History positive or once of any type of reagent positive was considered as initial screening positive.The individuals with initial screening positive received fine screening (colon endoscope examination).The effects evaluation included the positive rate of FOB,intestinal lesion detection rate,sensitivity,specificity and Youden index.The health economic analysis was calculated.Chi-square test was performed for comparisons between the two groups.Results A total of 8 427 history survey were completed,the positive rate of history was 8.48％(715/8 427) ; 6 644 underwent quantitative detection of FOB and the positive rate was 4.44 ％ (295/6 644) ; qulitative test was conducted in 12 633 samples were conducted and the positive rate was 2.56 ％ (324/12 633),the difference was statistically significant (x2 =49.27,P＜ 0.01).A total of 854 individuals with initial screening positive underwent electronic colonoscopy examination,the total intestinal lesion detection rate was 22.72％ (194/854),of which the intestinal lesion detection rate of quantitative group was 34.55％ (66/191),and that of qualitative group was 17.73％ (36/203),the difference was statistically significant (x2 =14.53,P＜0.01).The detection rate of both quantitative and qualitative test positive was 43.75 ％ (14/32).The colorectal cancer detection rates of quantitative and qualitative FOB test were 3.66％ (7/191) and 0.99％ (2/203),advanced adenoma detection rates were 8.38 ％ (16/191) and 5.91％,there were no significant differences (x2 =2.08 and 0.96,both P＞0.05).The sensitivity of quantitative and qualitative FOB test in advanced adenoma and cancer detection rate was 45.10％ and 27.45％,respectively.The average cost of quantitative and qualitative FOB test in intestinal lesions detection was 5 874.50 and 1 432.14 yuan.Conclusion The effects of quantitative FOB test in colorectal cancer screening was better than that of qualitative reagent,however on the cost of screening,the former was 4.10 times of the latter.

BACKGROUND:Mesenchymal stem cel s are multipotent progenitor cel s that can be isolated from the bone marrow, adipose tissue, umbilical cord blood and so on. Mesenchymal stem cel s possess strong immunosuppressive effects on both innate and adaptive immunity.
OBJECTIVE:To summarize the immunomodulatory properties of mesenchymal stem cel s for T lymphocytes, B lymphocytes, natural kil er cel s and dentritic cel s and prospect its therapeutic implication.
METHODS:PubMed and CNKI databases were searched for relevant literatures published from 2000 to 2015. The key words were“mesenchymal stem cel s, immunomodulator, T cel s, B cel s, NK cel s, dendriticc cel s”in Chinese and English, respectively. Then, 61 papers were included and further analyzed.
RESULTS AND CONCLUSION:The immunomodulatory effects of MSCs on lymphocytes, B lymphocytes, natural kil er cel s and dentritic cel s were elicited by cel-cel contact and soluble cytokines. But mesenchymal stem cel s from different sources hold different immunomodulatory effect on immune cel s. When we use mesenchymal stem cel s in clinic, some important factors, such as isolation methods, cel sources, colonization sites, should be taken into account. In order to ensure the clinical safety and effectiveness, there are stil many problems to be further studied before mesenchymal stem cel s can be widely used in clinic.

Objective To establish a method of analyzing total uranium and 235U/238U ratio in urine using inductively coupled plasma mass spectrometry (ICP-MS) and uncertainty assessment.Methods Urine sample was digested with HNO3 and H2O2,and total uranium was determined using ICP-MS method directly.The digested urine sample was separated to concentrate uranium with tributyl phosphate (TBP) column,and 235U/238U ratio was analyzed using ICP-MS.The uncertainty was evaluated through sample pre-treatment,measurement and standard curve calculation.Results The recovery of total uranium in urine was 98.4％-102.4％,detection limit was 0.002 μg/L.The relative expanded uncertainty of total uranium concentration in urine was 0.26 (k =2).235 U/238 U ratio was 0.001 1 (k =2).Conclusions This study offers a low detection limit,good recovery and precision method for rapid determination of total uranium and 235U/238 U ratio in urine samples.It is potential used for both in occupational exposure assessment and nuclear emergency situation.The uncertainty evaluation of total uranium and 235U/238U ratio in urine are reliable.