Objective To analyze the factors influencing augmentation index (AI) by examining the AI changes in patients who received continuous ambulatory peritoneal dialysis (CAPD) therapy, and evaluate the artery elastic function situation. Methods The height, weight, blood pressure, blood indicators were detected in 46 CAPD patients (CAPD group) and 42 controls (control group). AI was managed by OMRON HEM-90OOAI, and the influencing factor was analyzed. Results Systolic blood pressure(SBP),diastolic blood pressure(DBP), pulse pressure, central aortic pressure and AIp75 (AI value, when pulse was 75 beats/min) in CAPD group were significantly higher than those in control group. Within CAPD patients,the AIp75, in female was significantly higher than that in nude [(96.67±8.95 )% vs (89.89±6.46)% ,P =0.022]. Simple correlation showed positive relationship in gender, age, SBP, DBP, pulse pressure and central aortic pressure with AI; and negative relationship in height, weight and weight index with AI; while there was no relationship between AI and all kinds of chemical examination indicators or dialysis years.Multiple linear regression analysis evidenced that gender,age, height, DBP and central aortic pressure of CAPD patients had linear regression relation with AI. Conclusions It indicates a decreased artery elasticity and an increased stiffness occurs in CAPD patients. AI has tight correlation with age, height, DBP and central aortic pressure, and is an non-invasive factor thai partially reflects the arterial elasticity. Central aortic pressure is relevant with aortic elasticity and rigidity closely. Measuring central aortic pressure is very imporrant for preventing cardiovascular accident.

Objective To explore the value of serum ischemia modified albumin (IMA) level in assessment of disease severity for patients with chronic obstructive pulmonary disease (COPD).Methods A total of 81 cases of patients with COPD treated in our hospital from September 2015 to March 2016 were selected (COPD group),including 51 cases of patients with acute exacerbation of COPD and 30 cases of patients with stable of COPD.Meanwhile,30 volunteers without COPD were collected as control group.Serum levels of IMA were detected and compared among different groups.Correlations between serum level of IMA and serum level of myoglobin (MYO),troponin T (TNT) and C reactive protein (CRP),and white blood cell (WBC) count were analyzed respectively.A receiver operating characteristic (ROC) curve was also plotted to investigate the diagnostic value of serum IMA level for diagnosing COPD.Results Serum level of IMA in the COPD group was higher than that in the control group [84.1 (79.1,88.5) U/L vs.73.1 (70.2,75.1)U/L],serum level of IMA in patients with acute exacerbation of COPD was higher than that of patients with stable of COPD [85.5 (82.3,89.4)U/L vs.78.1 (75.9,83.0)U/L],serum levels of IMA in patients with acute exacerbation and stable of COPD both were higher than that in the control group,there were statistically significant differences (P＜0.05).The serum level of IMA was positively related with serum level of MYO in patients with COPD (r=0.554,P =0.00).ROC curve indicated when the cutoff value was set as 76.55 U/L,the sensitivity and specificity of serum level of IMA for diagnosing COPD was 88.5％ and 80.0％ respectively,and area under the ROC curve was 0.88.Conclusion Serum level of IMA could be a valuable indicator for clinically assessing disease severity of patients with COPD,which deserves further study through expanding samples size.

A ?-mannanase gene (TM_1227) from Thermotoga maritima MSB8 was cloned and expressed in E.coli. The recombinant ?-mannanase was purified and characterized. The gene consists of 2010 bp, and the translated protein encodes 669 amino acids and its molecular mass is approximately 76.827 kD. Homology analysis of the deduced amino acid sequences showed that the enzyme shared 99% identity with ?-mannanase from Thermotoga sp. RQ2. The mannanase activity was up to 39.7 U/mg after the recombinant E. coli BL21 was induced by IPTG. Crude enzyme solution was purified to homogeneity by Ni-NTA agarose. Its optimum temperature and pH was 95?C and pH 8.0 respectively for LBG. The enzyme remained over 50% activity after treated at 85?C for 30 min. The above properties showed great potential of its application in paper industry. The mannanase hydrolyzed copra mannan and LBG to give various sizes of oligosaccharides, and almost no mannose was detected by TLC, which was suitable for mannooligosaccharides production.

Objective To evaluate the curative effects of sitagliptin in the treatment of type 2 diabetes mellitus complicated with nonalcoholic fatty liver disease(NAFLD).Methods 200 type 2 diabetes mellitus patients with NAFLD were selected and randomly divided into the observation group and the control group,100 cases in each group.The observation group received sitagliptin treatment,while the control group was treated with metformin.Before and 3,6 months after treatment,the body weight,body mass index(BMI),liver function(AST,ALT,GGT),OGCT synchronous exsanguinate assay(fasting and 2 h after breakfast glucose,insulin),blood lipid(TC,TG)and glycosylated hemoglobin(HbAlc),and other biochemical indicators were monitored and compared,as well as 1HMRS scan images. Results In the two groups after treatment,ALT,GGT,AST,FPG and 2h PG all improved significantly(t≥2.35,P <0.05),but ALT,GGT,AST,FPG and 2h PG in the observation group all improved better than those in the control group(t≥4.99,all P <0.05).In the two groups after treatment,TC,TG,HbAlc,BMI,HOMA -IR all improved significantly(t≥5.63,all P <0.05),but those of the observation group improved more significantly(t≥3.90,all P <0.05 ).In the observation group after treatment,liver lipid content (IHCL)was (10.3 ±2.9 )%,which was significantly lower than (27.8 ±4.5)% before treatment(t =32.69,P <0.05).In the control group after treatment, IHCL was (18.4 ±3.5)%,which was significantly lower than (26.9 ±4.6)% before treatment(t =14.70,P <0.05),but in the observation group after treatment IHCL was significantly lower than that in the control group after treatment(t =17.82,P <0.05).Conclusion Sitagliptin can significantly improve the blood glucose,blood lipid, liver function,insulin resistance in type 2 diabetes mellitus patients with NAFLD,which has good clinical curative effects and is worthy of clinical promoting.

Objective To study whether the primary ovarian cancer cells containing cancer stem cells and its characterization in serum-free culture condition.Methods The primary cancer cells were isolated from one stage Ⅲ, grade 2 serous adenocareinoma tissue.Cells were cultured in serum-free culture system supplemented with epidermal growth factor,basic fibroblast growth factor,leukemia inhibitory factor and insulin.or standard serum-containing system.Methyl thiazolyl tetrazolium assay,quantitative PCR analysis,flow-cytometric analysis and xenograft experiments in vivo were performed.Results The primary cancer cells could maintain and forill cell sphere in serum-free culture system.These cells had the properties of self-renewal,overexpression of stem cell marker genes Nanog,Oct-4,Sox-2,nestin,ABCG2,CD_(133) and CD_(117) By contrast with the difierentiated cells under standard serum-containing culture conditions.these sphere-forming cells were more resistant to cisplatin and paclitaxel after treated 48 and 72 hours(61% vs.31%,73% vs.29%,P<0.05).With Hoechst 33342 exclusion assay,only 21.83%of sphere-forming cells were positive with the dye,compared with 83.04% positive cells in differentiated cells (P<0.01).Only 500 sphere-forming cells resulted subcutaneous xenograft tumors.All of these xenografts were categorized as serous adenocareinomas, overexpression of CA_(125) and cytokeratin-7 which were original tumor phenotype of ovarian cancer. Conclusion The sphere-forming cells isolated from primary ovarian cancer tissues have the characterization of cancer stem cell and may be a more reliable model system for understanding the biology of primary human tumors.

OBJECTIVE To explore the outcomes of CO2 laser assisted stapedotomy with artificial stapes prostheses in the treatment of advanced otosclerosis. METHODS Between January 2010 and January 2014, 15 patients (16 ears) diagnosed as advanced otosclerosis accepted CO2 laser assisted stapedotomy with artificial stapes implantation in our department. The averaged preoperative air conduction threshold of the speech frequency was 70.21 dB HL, the averaged bone conduction threshold was 38.49 dB HL, the averaged air-bone gap (ABG) was 31.72 dB HL. All cases were followed up for more than 6 months after operation. RESULTS All cases accepted auditory follow up after 6 months postoperatively. The speech frequency average air conduction threshold was 43.7 dB HL, the average bone conduction threshold was 28.95 dB HL, the average ABG was 14.75 dB HL. The ABG≤20 dB was achieved in 9 ears (56.3%) and ABG closure (≤10 dB) was achieved in 6 ears (37.5%). No cases appeared intractable vertigo, sensorineural hearing loss, secondary facial paralysis and other serious complications. CONCLUSION CO2 laser assisted technique reduced the probability of serious complications of stapedotomy, most patients with hearing level improved significantly. It's a safe, practical, relatively economical choice for advanced otosclerosis.

The cloning and expression of a?-galactosidase gene(TM_0310)from Thermotoga maritima MSB8 was studied.The gene consists of 2019 bp,and the translated protein encodes 672 amino acids and its molecular mass is approximately 78.972 kD.The homology analysis of the deduced amino acid sequences showed that the enzyme shared 95%identity with a putative?-galactosidase from Thermotoga petrophila RKU-1 and a?-galactosidase from Thermotoga sp.RQ2.The galactosidase activity was up to 2.08 U/mg after the recombinant E.coli BL21 was induced by IPTG.The crude lysate remained about 70%activity after treated at 80℃for 10 min,indicating that the recombinant enzyme is thermostable and may be used at high temperatures.

Objective To investigate the infection state and genotype of Babesia from tick at Alataw port,the China-Kazakhstan border.Methods Drag-flag method and animal body surface method were used to collect ticks at Ebinur Lake wetland,Alataw port.18s rRNA gene of Babesia was tested by polymerase chain reaction (PCR),the sequence analysis was conducted with Blast and phylogenetic analysis was conducted with Mega 6.0.Results The positive rate of Babesia gene in ticks was 12.65％ (32/253) at Alataw port.By sequencing,32 sequences were divided in ALSK174,ALSK191,ALSK019 three groups.Analysis of Blast showed that ALSK174 had the highest homology with Babesia caballi (EU888904,South Africa),it was 99.72％ (356/357);ALSK191 had the highest homology with Babesia occultans (KP745626,Turkey),it was 99.72％ (350/351);ALSK019 had 95.76％ (339/354) homology with Babesia odocoilei (KC460321,Canada).Conclusion In this study,we have first reported that the Babesia is infected from ticks at Alataw port,the China-Kazakhstan border.

OBJECTIVE:To study the quality standards of Compound kuqin ointment.METHODS:TLC method was used for the identification of alion,baicalin,menthol.The content of tetrahydropalmatine and baicalin were determined by HPLC.RESULTS:The identification method was specific.The linear range of tetrahydropalmatine was 0.131～3.275 ?g(r=0.999 9) with an average recovery of 102.40%(RSD=0.77%,n=6).The linear range of baicalin was 0.050 35～2.014 ?g (r=0.999 9)with an average recovery of 100.97%(RSD=1.42%,n=6).CONCLUSION:The method is simple,accurate and reproducible for the quality control of Compound kuqin ointment.

Based on chest images' features, this paper presents a retrieval method with domination color of partition, gray level co-occurrence matrix and gradient image shape invariant moments, as well as the fusion of them and the technique of relevance feedback. In Windows Vista environment with Visual C + +, a chest image retrieval prototype is implemented and the experiments have proved that this method has a better retrieval effect.
Algorithms ; Database Management Systems ; Diagnostic Imaging ; Image Enhancement ; Information Storage and Retrieval