Podcast,a versatile web-based technology,has been widely employed in international nursing education.In China,however,it is only applied based on its video-related function.The other functions,such as subscribing,participating,mobile,and sharing learning option have not been fully exploited.The studies on application of podcast demonstrate that it can excite the learning interest,alleviate stress and anxiety,and enhance the preclinical educational experience.Moreover,it facilitates the self-study ability.Therefore the podcast is expected to be applied more widely in the domestic nursing education.

Objective To evaluate the reporting and methodological quality of randomized controlled trials (RCTs) related traditional Chinese medical nursing which published in key Chinese journals.Methods Electronic databases were searched for collecting RCTs related traditional Chinese medical nursing which published in key Chinese journals.The impact factors of all these journals ranked the first three in the Chinese S & T journal citation reports,2013.The CONSORT statement and Cochrane collaboration risk of bias tool were applied to evaluate the reporting and methodological quality respectively.Results A total of 135 articles were identified to meet the criteria.To the best of our knowledge,however,none of these articles have reported the 14 items in the CONSORT statement,either without the CONSORT flow diagram.According to the Cochrane Collaboration Risk of Bias Tool,17.0％(23/135) of these articles was confirmed to be high risk of bias,with the rest uncertain in the degree of bias.Conclusions The reporting and methodological quality of RCTs on traditional Chinese medical nursing were poor.It is urgent to improve the methodological and reporting quality of RCTs on traditional Chinese medical nursing researches.

Objective To compare the methodological and reporting quality of case-control studies published in higher impacted nursing periodicals,other nursing journals and compositive medical journals.Methods All nursing specialization and integrative journals in China mainland were searched from the inception till December 2013.The methodological and reporting quality was assessed according to NewcastleOttawa Quality Assessment Scale (NOS) and strengthening the reporting of Observational Studies in Epidemiology Statement (STROBE) respectively.Results The systematic literature search yielded 3 579 publications potentially relevant studies.Then,a total of 94 hteratures met the inclusion criteria were identified.The average score of methodological quality and reporting quality were(4.86±1.33) and (16.11±2.41) respectively.Additionally,there was no significant difference in methodological quality and reporting quality among higher impacted nursing periodical,other nursing journals and compositive medical joumal.Condusions The number of case-control studies in Chinese nursing field revealed an increasing tendency,and these literatures addressed a wide range of research fields.However,most quality of the case-control studies published in China were rela-tively poor,and both methodological and reporting quality should be further improved.

Objective To systematically analyze the current situation of case‐control studies published on Chinese nursing ac‐ademic journals and provide references for future researches .Methods All literatures related to case‐control studies published on Chinese nursing academic journals were retrieved from CNKI ,CBM ,Wangfang databases ,and VIP by computer .The literatures were analyzed by bibliometrics method .Results Totally 77 literatures published in 17 journals were retrieved .The number of liter‐atures revealed an increasing tendency .T he content of these literatures involved 11 nursing fields ,such as medicine nursing ,surgery nursing ,and fundamental nursing .29 .9% of studies were supported by research grants .On the other side ,authors were located in 18 provinces ,autonomous regions and municipalities .Meanwhile ,most of them were from developed regions and worked in medical institutions .Conclusion The method of case‐control studies have gradually gained recognition of Chinese nursing researchers . However ,the number of case‐control studies were still small .Nursing researchers should be encouraged to conduct case‐control studies actively and apply this kind of method in more extensive fields of nursing .

BACKGROUND: Mesh plug tension-free hernioplasty is commonly used for inguinal hernia. In the operation, different mesh materials can be selected, among which the modified Kugel mesh is extensively applied. OBJECTIVE: To observe the biocompatibility of modified Kugel mesh in mesh plug tension-free hernioplasty for inguinal hernia. METHODS: Total y 79 cases of inguinal hernia were treated by mesh plug tension-free hernioplasty. The patients were randomly divided into observation group repaired with Bard mesh (modified Kuge) (n=38) and control group repaired with Prolene mesh (n=41). After 12-month fol ow-up, levels of interleukin 6, C-reactive protein and tumor necrosis factor α were detected and compared before and after treatment;adverse events, including wound infection or infection caused by the mesh in the two groups were recorded. RESULTS AND CONCLUSION: Levels of interleukin 6, C-reactive protein and tumor necrosis factor α in the two groups were significantly decreased after treatment than before treatment (P < 0.05). No wound infection or infection caused by the mesh appeared in both two groups. Although scrotum effusion occurred in two cases of each group, their outcomes al improved significantly after active puncture and suction treatment without other serious problems. No recurrence was found during the 12-month fol ow-up. These results show that the modified Kugel mesh has good biocompatibility in mesh plug tension-free hernioplasty for inguinal hernia.

Objective To evaluate the association between the concentration of particulate matter (PM2.5)and asthma attack in children.Methods The computer and databases were used to search the key wordsAsthma andChild were searched by means of the subject headings ( Asthma andChild) and free words (Asthma * , Child *andPediatric * etc.),moreover PM2.5 was searched on the basis of free words such asPM2.5, Particulate Matter *which were linked withAND in PubMed and Medline database.Furthermore,the key words asthma AND (Child OR Pediatric OR Infant) AND (PM2.5 OR Particulate Matter OR Inhalable Particles) for keywords were searched in CBM,CNKI,VIP and Wanfang databases.The literatures included those from the initial computer database up to those of December 2014 from computer database.Meanwhile manual research was added to screen literatures according to the standards of inclusion and exclusion.Newcastle-Ottawa Scale was employed to assess the quality of the included literatures including selection,comparability and outcomc.Data wcre synthesized and analyzed by Rcvman5.3 and Stata12.0 version for statistical analysis,heterogeneity test,sensitivity analysis,subgroup analysis,and so on.Results A total of 17 literatures involving 1326573 children were included.The findings from quality assessment involved 2 studies for 8 scores,2 for 7 scores,7 for 6 scores,5 for 5 scores,and 1 for 4 scores,respectively.The result of Meta-analysis showed that the combined the odds ratio (OR) of PM2.5 with childhood asthma attack was 1.06,and 95％ confidence interval(CI) was 1.03-1.08.Subgroup analysis showed that the OR on the asthma hospital visit equaled to 1.03 (95％ CI 1.01-1.06),and the OR on the asthma symptom equaled to 1.11 (95％ CI 1.06-1.16),moreover,subgroup analysis between developed and developing countries showed that the OR of the asthma on developing countries corresponded to 1.04 (95％ CI 1.02-1.06),and the OR of the asthma on developed countries corresponded to 1.06 (95％ CI 1.03-1.09).Conclusion There is a positive correlation between concentration of PM2.5 and asthma attack in children.

Objective The aim of this study was to evaluate reporting quality of researches about interviews and focus groups in Chinese nursing field.Methods All nursing specialization journals in China mainland were searched from the inception till December 2013.The search was performed on four Chinese databases:China National Knowledge Infrastructure Database,Chinese Biomedical Literature Database,Wanfang database and VIP database.The reporting quality was assessed according to COREQ standard.Results A total of 2 758 qualitative researches were identified,among which 789 articles accorded with the inclusion and exclusion criterion.These articles were published on 19 journals such as the Chinese Journal of Nursing and the Chinese Journal of Practical Nursing.Non of the articles accorded with the COREQ standard.The flaws of reporting quality were reflected in the inadequate description of personal characteristics,incomplete reporting of data collection and the deficiency of the coding tree.Conclusions From 2004 to 2013,qualitative literature in nursing field increased year-by-year.Till now,most of the qualitative studies on nursing showed flaw of different degrees,which need continuous improvement.

Objective To over-express human trefoil factor 2 (hTFF2) by Escherichia coli system and an-alyze its activities in promoting migration and anchorage-independent growth in SW480 colonic cancer cells. Meth-ods hTFF2 gene encoding mature peptide was obtained by RT-PCR, and the recombinant expression vector pET32a-hTFF2 was constructed. Then pET32a-hTFF2 was transformed into E. coli BL21-32a and TrxA-hTFF2 fu-sion protein was induced to over-express. The expressed product was isolated by Ni-NTA affinity chromatography, purified by dialysis and identified by Western blotting. The activities of the recombinant hTFF2 in promoting SW480 cells migration and anchorage-independent growth were analyzed by MicroChemotaxis Chamber migration assay and Soft-agar assay,respectively. Results The TrxA-hTFF2 fusion protein was expressed to 220 mg/L at high purity. In vitro model demonstrated that recombinant hTFF2 obviously enhanced SW480 cell migration activity and anchor-age-independent growth. Conclusion The recombinant hTFF2 can be expressed in E. coli with high production, purity and biological activities. And its roles in cell migration and anchorage-independent growth suggest that up-regulation of TFF2 in colonic cancer might be involved in cancer invasion and metastases.

Objective To investigate the effect of liver kinase B1(LKB1) on the radiosensitivity of subcutaneous xenograft tumor of lung cancer H460 cells in nude mice.Methods Human lung cancer H460 cells were implanted into female nude mice (BALB/c-nu) to establish a subcutaneous xenograft tumor model of lung cancer.A total of 24 female nude mice in which the model was successfully established were equally and randomly divided into four groups:pEGFP-Ctrl plasmid (empty vector plasmid) group, irradiation (IR)+pEGFP-Ctrl plasmid group, pEGFP-LKB1 plasmid (overexpressing LKB1) group, and IR+pEGFP-LKB1 plasmid group.The growth of xenograft tumors was observed and the tumor inhibition rate and enhancement factor (EF) were calculated.The expression of LKB1 in each group was measured by immunohistochemistry and Western blot to analyze the relationship between LKB1 and radiosensitivity.Results Compared with the pEGFP-Ctrl plasmid group, the IR+pEGFP-Ctrl plasmid group, pEGFP-LKB1 plasmid group, and IR+pEGFP-LKB1 plasmid group showed varying degrees of inhibition of tumor growth, particularly in the IR+pEGFP-LKB1 plasmid group, and the tumor inhibition rates were 31.30%, 14.78%, and 43.48%, respectively.The EF of LKB1 in the IR+pEGFP-LKB1 plasmid group was 1.18.The immunohistochemistry and Western blot showed that LKB1 could be effectively expressed in the pEGFP-LKB1 plasmid group and IR+pEGFP-LKB1 plasmid group, but not in the other two groups.Conclusions The subcutaneous xenograft tumor model of human lung cancer H460 cells has been successfully established in nude mice.LKB1 has a radiosensitizing effect on the subcutaneous xenograft tumor of lung cancer H460 cells in nude mice.

Objective There are few researches for the serum betatrophin level and diabetic nephropathy (DN) recently.The aim of this study was to investigate the change of serum betatrophin level and the correlation of serum betatrophin and urinary albumin-to-creatintine ratio (UACR) in patients with type 2 diabetes mellitus (T2DM).Methods A total of 150 Chinese subjects from Mar 2013 to Jul 2016 were enrolled in the study, including 90 patients with type 2 diabetes and 60 healthy controls.According to the level of UACR, the diabetic patients were divided into two groups:normal UACR group (UACR<30 mg/g, n=60) and abnormal UACR group(UACR>30 mg/g, n=30).Serum betatrophin was measured by enzyme linked immunosorbent assay (ELISA).UACR was measured by turbidimetric inhibition immune assay.Blood glucose blood lipid were measured simultaneously.Results The serum betatrophin level was significantly higher in abnormal UACR group than that in normal UACR group[677.37±59.02 vs 486.13±41.22 pg/mL, P<0.05];Serum betatrophin level in T2DM patients was positively correlated with age (r=0.246), waist hip ratio (WHR) (r=0.240), fasting blood glucose (FPG) (r=0.234), 2 hour plasma glucose (2hPG) (r=0.363), glycosylated hemoglobin (HbA1c) (r=0.346), fasting insulin (FINS) (r=0.249), insulin resistance index (HOMA-IR) (r=0.309), blood urea nitrogen (BUN) (r=0.223), creatinine (CREA) (r=0.277) and UACR (r=0.244) (P<0.05),and negatively correlated with glomerular filtration rate (GFR) (r=0.308) (P<0.01).Serum betatrophin level in normal UACR group was positively correlated with age, HbA1c and UACR (P<0.05);Serum betatrophin level in abnormal UACR group was positively correlated with WHR (r=0.504), 2hPG (r=0.600), HbA1c (r=0.449), HOMA-IR (r=0.395) (P<0.05).The WHR, HbA1c, HOMA-IR and GFR were the influential factors of the serum betatrophin level.Conclusion The level of serum betatrophin was significantly increased in T2DM patients with albuminuria, which suggests that the betatrophin might play an important role in the pathogenesis of DN.