Objective To investigate the effects of angiotensin Ⅱ on nuclear transcription factor-кB(NF-кB)and interleukin-8(A549 cells),and to explore the underlying mechanisms of ventilator-induced lung injure. MethodA549 cells were maintained in Dulbecco' s modified Eagle's culture medium at 37℃ with 5 ％ CO2 incubator. The cells were randomly (random number) divided into 4 groups (n =24 in each). The group A was control group. The group B,C and D had A549 cells co-incubated with Angiotensin Ⅱ 10-6 mmol/L (final concentration) for 1 h,2 h and 4 h, respectively. The samples of cell culture supematant,total cellular RNA and nuclear proteins were collected or extracted after culture of cells. The II-8 contents in cell culture supernatant were detected with enzyme linked immunosorbent assay(FLISA) .The expressions of IL-8 mRNA were measured by reverse ttanscription-polymerase chain reaction (RT-PCR).The NF-κB activities were assayed with electrophoretic mobility shift assay (EMSA). The levels of NF-κB p65 subunit were detected with Western blot. The overall differences were compared by using analysis of variance(ANOVA). Differences between two groups were assessed by q tests. ResultsThe levels of IL-8 content in cell culture supematant in groups A, B, C and D were (29.59+8.36) pg/mL,(135.35 + 28.93) pg/mL,(357.12+ 57.21) pg/mL,and (1732.13+ 261.73) pg/mL,respectively(group A vs. group B, P ＜0.01; group B vs group C, P ＜0.01;group C vs. group D, P ＜ 0.01 ) The overall differences between gtoups were statistically significant ( F =58.41,P ＜ 0.05). The expressions of IL-8 mRNA in groups A, B, C and D were (0.13±0.03)Au·nm,(0.49+0.08) Au·mm,(0.71 ±0.10) Au·mm and (0.88±0.11) Au·mm,respectively (group A vs. group B, P ＜0.01; group B vs. group C, P ＜ 0.01; group C vs. group D, P ＜ 0.05. The overall differences between groups were statistically significant (F = 19.08, P ＜ 0.05). The NF-κB activities in groups A, B, C and D were (70.37±6.57) Au·mm,(139.76± 11.72) Au·mm,(198.90± 18.95)Au·mm and (388.73±26.27) Au·mm, respectively (group A vs. group B, P ＜0.01,group B vs. groupC, P ＜0.05; group C vs. group D, P ＜ 0.01 ). The overall differences between groups were statistically significant ( F = 23.15, P ＜ 0.05). The levels of NF-κB p65 subunit in groups A, B＜ C and D were (33.05±6.23) Au·mm, (73.97 ± 5.34) Au·mm,(168.72± 8.40)Au·mm and (254.63 + 12.2) Au·mm, respectively (group A vs. group B, P ＜0.01; group B vs. group C, P ＜0.01; group C vs. group D, P ＜0.01). The overall differences between groups were statistically significant (F = 16.33,P ＜ 0.05). Conclusions The Ang Ⅱ can significantly activate the NF-κB system and up-regulate the expression of IL-8 in human lung adenocarcinoma cell line, which cause neutrophil infiltration and activation. This effect is time-dependent and induces acute lung injure, playing an important role in the underlying mechanisms of ventilator-induced lung injure.

Objective To systematically review the diagnostic value of microRNA(miRNA) quantitation in breast cancer .Meth-ods Literatures about miRNA and breast cancer diagnosis were selected by retrieving Medline ,Embase and Cochrane Library .Ac-cording to the inclusion and exclusion criteria ,the literatures were independently screened ,and a 2 × 2 contingency table was con-structed .Quality of literatures was assessed by quality assessment of diagnostic accuracy studies(QUADAS) .Statistical analysis was performed by employing Meta-Disc 1 .4 software and STATA 11 .0 .Results 16 studies were included ,which contained 1 303 patients and 711 control samples .There were threshold effects among these studies (the spearman′s correlation coefficient was-0 .758 ,P=0 .001) .A random effects model was used for meta-analysis .The summary sensitivity ,specificity ,positive likelihood ratio ,negative likelihood ratio ,and diagnostic odds ratio for miRNA in breast cancer diagnosis were 0 .77(95% CI:0 .75 -0 .79) , 0 .77(95% CI:0 .74-0 .80) ,4 .19(95% CI:2 .79-6 .30) ,0 .25(95% CI:0 .19-0 .35) ,19 .91(95% CI:9 .68-40 .95) .The area un-der curve of SROC was 0 .895 0 .Conclusion These results suggest that miRNAs have potential value to diagnose breast cancer . However ,effective diagnosis of breast cancer still needs to be conducted with assistance of clinical findings and traditional lab inves-tigations .

Objective To analyze the ability of rheumatologistto read the magnetic resonance imag of sacroiliac joint of spondyloarthritis patients.Methods The questionnaire survey were conducted among rheumatologists and the answers of the questionnaires were analyzed by quantitative analysis.Results 66.9％ (75/112) rheumatologist did not known how to choose the sequence of magnetic resonance imaging,and 55.4％(62/112) rheumatologist thought that bone marrow edema was very important for the diagnosis of spondyloarthritis,but only less than 10％ rheumatologists thought that erosion and fat infiltration could also h elp to make the diagnosis of spondy-loarthritis.Conclusion It is very important for rheumatologists to receive training on the reading of magnetic resonance images of sacroiliac joint of spondyloarthritis patients.

Objective To investigate spinemagnetic resonance imaging(MRI) findings in patients with axial spondyloarthritis (SpA) and to analyze the correlation between imaging and clinical manifestation.Methods The clinical data of patients with axial SpA were recorded.All patients underwent whole spine MRI scanning.The MRI findings of spinal involvement were explored.Moreover,the correlation between lesions in spinal MRI and Bath Ankylosing Spondylitis Disease Activity Index(BASDAI),Bath Ankylosing Spondylitis Functional Index (BASFI),Bath Ankylosing Spondylitis Metrology Index (BASMI),nocturnal pain visual analogue scale (VAS) score,back pain VAS score,global disease activity VAS score,Ankylosing Spondylitis Disease Activity score (ASDAS),erythrocyte sedimentation rate,C-reactive protein was analyzed.Results Thirty-three patients with axial SpA were included in this study.The image abnormalities of the spine were confirmed in 29 axial SpA patients by MRI,including Romanus lesion,Andersson lesion,the inflammation of facet joints and syndesmophyte.In correlation study,BASMI was positively correlated to the numbers of acute Romanus lesions,chronic Romanus lesions,chronic Andersson lesions and whole spinal lesions(r =0.440,P＜0.05; r =0.483,P＜0.05; r=0.421,P＜0.05; r=0.589,P ＜ 0.05 respectively).There was a statistically significant correlation between chronic Andersson lesions and BASFI(r =0.392,P ＜0.05).But no significant associations were found between MRI lesions and other clinical findings.Conclusions MRI lesions in axial SpA were associated with findings reflecting the spinal function,which can better guide the clinical treatment.

Objective To explore the effect of the continuous quality improvement ( CQI) on shortening the patients ’ waiting time and improving the satisfaction of the waiting time in transfusion room . Methods The CQI procedure including setting up CQI groups , collecting and analysis the data , analyzing the cause, setting goals, making improvement plan and implement method , evaluating effect, summarizing and formulating the consolidation measures etc were carried out , and the patients’ waiting time and the satisfaction of the waiting time in transfusion room were compared before and after the implementation of the CQI . Results The average patients’ waiting time in transfusion room was (18 ±3) min after the implementation of the CQI, and was significantly lower than (30 ±5 ) min before CQI, and the difference was statistically significant (t=20.580, P<0.05).The satisfaction of the waiting time in transfusion room was 89% after the implementation of the CQI, and was significantly higher than 65% before CQI, and the difference was statistically significant (χ2 =9.416, P=0.024).Conclusions The nurses find out the best way to solve the problem and strengthen the team cooperation spirit through the implementation of the CQI and the utilization of team wisdom.The nurse work flow is smoothly, and the performance evaluation mechanism is reasonable , which greatly enhance the work enthusiasm and efficiency , shorten the patients ’ waiting time, and improve the patients’ satisfaction.

Objective To investigate the effect of amiloride pretreatment on the acute lung injury (ALI)induced by lipopolysaccharide (LPS) in rats. Methods Thirty-two pathogen-free male SD rats weighing 200-250 g were randomly divided into 4 groups (n = 8 each); group Ⅰ received iv normal saline (group C); group Ⅱ ALI received iv LPS 6 mg/kg (group ALI); group Ⅲ received iv amiloride 10 mg/kg (group A) and group Ⅳ received amiloride 10 mg/kg iv 30 min before iv LPS ( group AL). The animals were killed by exsanguination at 6 h after iv LPS infusion. The lungs were immediately removed. Microscopic examination of lung tissue was performed. The left lung was lavaged. The total protein (TP), TNF-α and macrophage inflammatory protein-2 (MIP-2)concentrations in broncho-alveolar lavage fluid (BALF) were measured. The W/D weight ratio and the myeloperoxidase (MPO) activity and expression of Na-H exchanger-1 ( NHE1 ), p38MAPK and extracellular signal-regulated kinase (ERK) in lung tissue were determined. Results LPS significantly increased ALI score (0 = slightest, 4 = severest), W/D lung weight ratio, TP, TNF-α and MIP-2 concentrations in BALF and MPO activity and the expression of NHE1, p38MAPK and ERK in the lung as compared with. control group. Amiloride pretreatment significantly attenuated LPS-induced changes except p38MAPK expression. Conclusion Pretreatment with amiloride can attenuate LPS-induced ALI by inhibition of ERK activation.

Objective To explore the relative expression of plasma miR-199a-5p and miR-200c-3p in gastric adenocarcinoma cancer(GAC) patients and its clinical value.Methods Case-control study was used in this research.The relative expression of plasma miR-199a-5p and miR-200c-3p from 47 GAC patients and 50 healthy controls were determined by RT-PCR ( TaqMan Probe method).Meanwhile, the association with age, gender, tumor location, size, degree of differentiation, TNM stage, lymph node metastasis and other clinical pathological parameters were analyzed.The expression of these two miRNAs in plasma of 30 GAC patients during preoperation was compared with their expression 6-8 days after radical surgery.The sensitivity and specificity of plasma miRNAs expression for the diagnosis of GAC were analyzed using the receiver operating characteristic ( ROC ) curve.SPSS20.0 statistical software was used for statistical analysis.T-test, paired t-test and one-factor ANOVA were used for normal distribution of quantitative data.Results The plasma level of miR-199a-5p in GAC patients was significantly lower(1.05 ±0.22) (t =3.058,P =0.003), while miR-200c-3p was significantly higher(15.15 ±3.02) (t =-2.854,P=0.006), when they were compared with those in controls(26.80 ±8.38, 3.39 ±0.87).Low miR-199a-5p expression in GAC patients were associated with lymph node metastasis ( F =4.725, P =0.029) and the differentiation degree of gastric cancer(F=3.854,P=0.032).The relative expression of miR-199a-5p in postoperative plasma was significantly increased(t=-3.814,P=0.001), but the relative expression of miR-200c-3p was significantly reduced when compared to the preoperative samples(t=2.978, P=0.006).Area under the ROC curve of miR-199a-5p, miR-200c-3p and combined miR-199a-5p and miR-200c-3p were 0.692, 0.792 and 0.798, the sensitivity and specificity were 87%,97%,92.5% and 43%,54%, 65%, respectively.Conclusion Combined detection of miR-199a-5p and miR-200c-3p in plasma has a higher sensitivity and specificity than the conventional tumor marker CEA and CA19-9, and may be a useful combination for gastric cancer diagnosis.

0.05).The serum PICP of tubercular meningitis children after 4 neeks glucocorticoid therapy (108.85?46.13) ?g/L was significantly lower than that in control group((154.38)?47.98) ?g/L and glucocorticoid- pretreatment (152.99?44.78) ?g/L (P

Objective To explore the association of Gly71Arg mutation in gene of bilirubin uridine 5'-diphosphate-glucuronosyltransferase(UGT1A1)and neonatal jaundice in Beijing city Han population.Methods The genotypes and alleles of the Gly71 Arg polymorphism for UGT1A1 gene were identified by polymerase chain reaction-restricted fragment length polymorphism assay in infants of Beijing city Han population of China,including 96 infants with neonatal jaundice[serum bilirubin(307.06?38.5)?mol/L,indirect bilirubin(292.9?35.9)?mol/L] and 101 healthy control infants [serum bilirubin(131.2?42.1)?mol/L,indirect bilirubin(126.3?39.7)?mol/L].The genotypes and allele frequencies of the polymorphism were compared between infants with neonatal jaundice group and healthy infant group(control group).The effect of polymorphism in infants with neonatal jaundice group on serum bilirubin level were analyzed.Results There were significant differences in genotypes distribution in Gly71Arg polymorphism for UGT1A1 gene between the 2 groups(?2=9.47 P=0.002).Compared with control group,neonatal jaundice group had significantly higher Arg allele frequency in the polymorphism for UGT1A1 gene(?2=10.34 P=0.001).There were independent effects of Gly71Arg mutation in the gene on serum bilirubin level in neonatal jaundice group,at the carriers of homozygote of the Arg allele of Gly71Arg polymorphism had higher serum bilirubin levels compared to carriers of heterozygote of the Arg allele of the polymorphism and non-carriers of the Arg allele of the polymorphism(Pa

Objective To determine whether cleavage developmentally retarded embryos have not cleaved during a 24 hour period could develop into blastocysts and produce hESC cell lines.Methods A total of 120 such embryos were cultured to blastocyst stage by sequential culture.Blastocysts formation rate and quality of blastocyst were detected under microscope.The relation between blastocyst formation rate and blastomere number,the fragment of blastomere and blastomere symmetry were analyzed by stepwise Logistical regression analysis.Inner cell masses(ICMs)were isolated by immunosurgery.Colonies derived from the ICMs were passed every 4-7 days and the derivatives were passaged and identified.Results A total of 22 blastocysts were obtained from 120 embryos.The blastulation rate was 18.7%.Early blatocyst, blastocyst,full blastocyst,expanded blastocyst,hatching blastoeyst and hatched blastocyst accounted for 5.9%,23.5%,35.3%,23.5%,5.9%,and 5.9% respectively.The grade of ICM and trophoblast was mostly scored C or B.Blastocyst formation rate was related to cell number and blastomere symmetry but not fragment.Immunosurgery resulted in the formation of 7 ICMs and 3 primary colonies,which produced 2 cell lines.The cell lines satisfied the criteria that characterize pluripotent hESC cells.Undifferentiated cells were positive for AKP,SSEA-4,TRA-1-60,and TRA-1-81.It could continue to proliferate in vitro and form embryoid bodies when cultured in suspension.It had capability to form teratoma in SCID mice.Both cell lines had normal karyotypes after 45 and 34 passages respectively.Conclusions Our results suggest that a subset of developmentally retarded embryos can form blastocysts and give rise to hESC cell lines.