Objective: To investigate the status and influencing factors of influenza vaccination among the elderly, so as to provide insights into improving the strategies for influenza vaccination among the elderly. Methods: Elderly people aged 60 years and above were recruited from one community each in five sub-districts of Shihezi City, Xinjiang Uygur Autonomous Region using a random sampling method. Demographic information, knowledge about influenza and influenza vaccines, vaccine literacy and influenza vaccination status in the past year were collected through questionnaire surveys. Factors affecting influenza vaccination among the elderly were analyzed using a multivariable logistic regression model. Results: Totally 1 121 valid questionnaires were recovered, with an effective recovery rate of 95.08%. There were 417 males (37.20%) and 704 females (62.80%). The majority were aged 60-<81 years, accounting for 80.37% (901 individuals). The awareness of knowledge about influenza and influenza vaccines was 78.86%. Low vaccine literacy was observed in 786 individuals, representing 70.12%. The influenza vaccination rate was 20.96%. Multivariable logistic regression analysis showed that age (71-<81 years, OR=1.607, 95%CI: 1.041-2.479; ≥81 years, OR=1.719, 95%CI: 1.040-2.842), educational level (middle school/technical secondary school, OR=0.616, 95%CI: 0.416-0.911), medical expense payment (employee medical insurance, OR=6.531, 95%CI: 2.030-21.010; resident medical insurance, OR=3.385, 95%CI: 1.095-10.466; public expense, OR=4.828, 95%CI: 1.700-13.712), vaccination willingness (yes, OR=6.237, 95%CI: 3.277-11.871), influenza vaccination history (yes, OR=14.600, 95%CI: 8.733-24.408) and vaccine literacy (medium and above, OR=2.412, 95%CI: 1.636-3.555) were associated with influenza vaccination among the elderly. Conclusion The influenza vaccination rate among the elderly was relatively low, and was mainly affected by age, educational level, medical expense payment, vaccination willingness, influenza vaccination history and vaccine literacy.

Objective To investigate the application value of ultrasound guidance combined with X-ray fluoroscopy for percutaneous transhepatic biliary drainage(PTBD).Methods A total of 157 patients with obstructive jaundice who underwent PTBD were selected and then divided into a control group(75 cases)and an observation group(82 cases)according to different guidance methods.The control group underwent puncture and catheterization of the biliary system under the guidance of traditional X-ray fluoroscopy.Meanwhile,the observation group underwent the puncture to the biliary system under ultrasound guidance and the catheterization under X-ray fluoroscopy.The success rates of puncture,operation and initial needle puncture,puncture times,operation time,X-ray fluoroscopy time,radiation dose and complication rate were compared between the two groups.Results Puncture and catheterization were successful in both groups,and the success rates of puncture and operation were all 100％.In the observation group,the success rate of initial needle puncture was 90.24％(74/82),which was higher than 74.67％(56/75)in the control group;the mean puncture times was 1.14,which was less than 1.77 in the control group;the mean operation time was 30.02 min,which was less than 40.09 min in the control group;the mean X-ray fluoroscopy time was 4.03 min,which was less than 6.61 min in the control group;the mean radiation dose was 49.08 mGy,which was less than 82.29 mGy in the control group,and all the differences above between the two groups were statistically significant(P＜0.05).In the observation group,there were 2 cases with biliary hemorrhage,3 cases with biliary infection,and 5 cases with biliary fistula(including 2 cases of secondary biliary peritonitis);while the control group had 10 cases with biliary hemorrhage,15 cases with biliary infection,13 cases with biliary fistula and 9 cases with biliary peritonitis,and the differences between the two groups were statistically significant(P＜0.05).Conclusion Ultrasound guidance combined with X-ray fluoroscopy for PTBD is safe and effective,with significantly short operation time,low radiation dose and fewer complications,which has a certain popularity value in different level hospitals.

Objective To investigate the application value of ultrasound guidance combined with X-ray fluoroscopy for percutaneous transhepatic biliary drainage(PTBD).Methods A total of 157 patients with obstructive jaundice who underwent PTBD were selected and then divided into a control group(75 cases)and an observation group(82 cases)according to different guidance methods.The control group underwent puncture and catheterization of the biliary system under the guidance of traditional X-ray fluoroscopy.Meanwhile,the observation group underwent the puncture to the biliary system under ultrasound guidance and the catheterization under X-ray fluoroscopy.The success rates of puncture,operation and initial needle puncture,puncture times,operation time,X-ray fluoroscopy time,radiation dose and complication rate were compared between the two groups.Results Puncture and catheterization were successful in both groups,and the success rates of puncture and operation were all 100％.In the observation group,the success rate of initial needle puncture was 90.24％(74/82),which was higher than 74.67％(56/75)in the control group;the mean puncture times was 1.14,which was less than 1.77 in the control group;the mean operation time was 30.02 min,which was less than 40.09 min in the control group;the mean X-ray fluoroscopy time was 4.03 min,which was less than 6.61 min in the control group;the mean radiation dose was 49.08 mGy,which was less than 82.29 mGy in the control group,and all the differences above between the two groups were statistically significant(P＜0.05).In the observation group,there were 2 cases with biliary hemorrhage,3 cases with biliary infection,and 5 cases with biliary fistula(including 2 cases of secondary biliary peritonitis);while the control group had 10 cases with biliary hemorrhage,15 cases with biliary infection,13 cases with biliary fistula and 9 cases with biliary peritonitis,and the differences between the two groups were statistically significant(P＜0.05).Conclusion Ultrasound guidance combined with X-ray fluoroscopy for PTBD is safe and effective,with significantly short operation time,low radiation dose and fewer complications,which has a certain popularity value in different level hospitals.

Objective This study aims to investigate the role of genes related to fatty acid metabolism in periodon-titis through machine learning and bioinformatics methods.Methods Periodontitis datasets GSE10334 and GSE-16134 were downloaded from the GEO database,and the fatty acid metabolism-related gene sets were obtained from the GeneCards database.Differentially expressed fatty acid metabolism-related genes(DEFAMRGs)in periodontitis were screened using the"limma"R package.Functional enrichment and pathway analyses were conducted.Recursive Feature Elimination,Least Absolute Shrinkage and Selection Operator,and Boruta algorithm were used to determine hub DEFAMRGs and construct diagnostic models with internal and external validation.Subtypes of periodontitis relat-ed to hub DEFAMRGs were constructed using consis-tency clustering analysis.CIBERSORT was used to ana-lyze immune cell infiltration in gingival tissues and ex-plore the correlation between hub DEFAMRGs and im-mune cells.Results A total of 113 periodontitis DE-FAMRGs were screened out as a result.The enrichment analysis results indicate that DEFAMRGs are mainly associat-ed with immune inflammatory responses and immune cell chemotaxis.Finally,8 hub DEFAMRGs(BTG2,CXCL12,FABP4,CLDN10,PPBP,RGS1,LGALSL,and RIF1)were identified and a diagnostic model(AUC=0.967)was con-structed,based on which periodontitis was divided into two subtypes.In addition,there is a significant correlation be-tween hub DEFAMRGs and different immune cell populations,with mast cells and dendritic cells showing higher cor-relation.Conclusion This study provides new insights and ideas for the occurrence and development mechanism of periodontitis and proposes a diagnostic model based on hub DEFAMRGs to provide new directions for diagnosis and treatment.

Objective: To investigate the effect of immunophenotyping on prognosis of multiple myeloma (MM) patients treated with bortezomib regimen as main treatment. Methods: Seventy-six MM patients in the Department of Hematology in the Affiliated Hospital of Qingdao University from January 2012 to January 2017 were retrospectively analyzed. The effects of the expressions of CD45, CD56 and other factors on progression free survival (PFS) and overall survival (OS) in MM patients treated with bortezomib-containing regimen were also analyzed. Results: Univariate analysis showed that statistical differences of the median PFS (12 months vs. 19 months, P < 0.001) and median OS (19 months vs. 23 months, P= 0.001) were significant in the group of CD45 positive and negative of MM patients; the median PFS (14 months vs. 21 months, P= 0.014) and median OS (16 months vs. 25 months, P= 0.026) for MM patients with hemoglobin (Hb) < 100 g/L and Hb ≥ 100 g/L were statistically significant; the median PFS (13 months vs. 18 months, P= 0.004) and median OS (14 months vs. 24 months, P= 0.008) for MM patients with albumin (ALB) < 35 g/L and ALB ≥ 35 g/L were statistically significant. The median PFS time and the median OS time in female MM patients were shorter than those in male MM patients (13 months vs. 19 months, P= 0.008; 16 months vs. 25 months, P= 0.008). Multivariate analysis showed that female and CD45 positive were the independent poor prognostic factors for PFS and OS in MM patients (P < 0.05). Conclusion CD45 positive and female are important prognostic factors for MM patients treated with bortezomib regimen as main treatment.

ObjectiveTo investigate the antitumor effect of cyclooxygenase-2 (COX-2) antisense RNA combined with celecoxib on hepatoma CBRH7919 cells. MethodsThe effect of celecoxib on in vitro proliferative activity, cell cycle, and apoptosis of hepatoma cell lines CBRH7919, CBRH7919-E, and CBRH7919-A (transfected with COX-2 antisense gene segment) were observed. MTT assay, cell cycle analysis, and RT-PCR were used to evaluate the change in in vitro proliferation of hepatoma cell lines. A multivariate analysis of variance was used for comparison of continuous data between groups, and the SNK-q test was used for further comparison between two groups. ResultsAfter the treatment with celecoxib, CBRH7919-A cells had a significant reduction in growth rate compared with CBRH7919 and CBRH7919-E cells (F=38.303, P＜0.01), in a time- and dose-dependent manner (F=162.638 and 22.666, both P＜0.01). Celecoxib significantly increased the proportion of cells in G0/G1 phase and had a marked inhibitory effect on cells in S phase in a dose-dependent manner (F=32.515, P＜0.01), while there was no significant change in the proportion of cells in G2/M phase. Compared with CBRH7919 and CBRH7919-E cells, CBRH7919-A cells were more sensitive to celecoxib (F=1219.506, P＜0.01). After the treatment with celecoxib at different concentrations (40 and 80 μmol/L), all three groups had a significant increase in cell apoptosis (all P＜001), and there was no significant difference in apoptosis between the three groups (P＞0.05). ConclusionCOX-2 antisense RNA combined with celecoxib can inhibit the in vitro growth and proliferation and cell cycle of hepatoma CBRH7919 cells, promote apoptosis, and thus exert a potential therapeutic effect on hepatoma cells.

Philadelphia chromosome-positive acute myeloid leukemia is controversial and difficult to distinguish from the blast phase of chronic myeloid leukemia.As a myeloid neoplasm,rare cases of this leukemia manifest multiple soft-tissue tumors or bone lytic lesions.In this paper,we describe a 49-year-old male patient who had an abrupt onset with sharp chest pain,fever,fatigue,emaciation,and splenomegaly.18F-fluoro-deoxy-glucose positron emission tomography/computed tomography (18F-FDG PET/CT) result showed diffuse and uneven hypermetabolic lesions in the bone marrow with peripheral bone marrow expansion,multiple soft tissue neoplasms with high 18F-FDG uptake,and lytic bone lesions.Bone marrow smear and biopsy detected aberrant blast cells expressing myeloid rather than lymphoid immunophenotype marker.For the existence of Philadelphia chromosome and BCR-ABL1 fusion gene together with complex chromosome abnormalities,a diagnosis of Philadelphia-positive acute myeloid leukemia was made,although the type (de novo or blast crisis) remained unclear.

Objective To explore the influence of tranexamic acid used in different modes in total hip arthroplasty (T HA ) blood loss by control experiment .Methods 60 patients accepted total hip arthroplasty from orthopaedics in our hospital were se‐lected between March 2010 to August 2013 ,among them femoral neck fracture were 47 cases and 13 cases were osteonecrosis .aged between 45‐82 years old ,and 62 in average .All gave unilateral total hip arthroplasty .All patients were divided into three groups ,A group(contradistinction group) ,B ,C group(experiment group) .each groups include 6 men and 14 women ,no revision surgery pa‐tients .For group A ,100 mL normal saline was dripped both in half on hour before surgery and 3 hours after surgery ;For group B , tranexamic acid diluted in 100 mL normal saline according to 10 mg/kg was dripped half on hour before surgery ,100 mL normal sa‐line was dripped 3 hour after surgery ;For group C ,tranexamic acid diluted in 100 mL normal saline according to 10 mg/kg was dripped both half on hour before surgery and 3 hour after surgery .Compute and record the visible blood cell loss and hidden blood loss ,the comparative analysis was conducted to discuss the effectiveness and safety of tranexamic acid used in the two methods .Re‐sults The visible blood cell loss in each group were (196 .20 ± 44 .45)mL ,(114 .84 ± 35 .21)mL and (104 .47 ± 30 .01)mL ;hidden blood loss in each group were:(614 .50 ± 98 .41)mL ,(425 .74 ± 70 .01)mL and (337 .12 ± 52 .23)mL .Conclusion In the unilateral total hip arthroplasty ,the use of tranexamic acid can significantly reduce a significant amount of visible and hidden blood loss .Com‐pared with tranexamic acid dripped just half one hour before surgery ,dripping tranexamic acid both half one hour before surgery and 3 hour after surgery reduced more hidden blood loss ,decreased transfusion requirement ,and this does not significantly increase the risk of deep venous thrombosis .

Objective To investigate characteristics of memory-guided saccade in Parkinson' s disease (PD),and to evaluate the application of memory-guided saccade in diagnosing PD.Methods Fiftythree subjects with early- or mid- stage PD were chosen as PD group,meanwhile,36 age-matched healthy subjects were chosen as control group.Memory-guided saccade test and event-related potential P300 were performed in all subjects,and results of the two groups were compared; furthermore,results of subgroups comprised of 29 patients with early-stage PD were analyzed.Results In comparison with control group,memory-guided saccade in PD group showed decreased velocity and primary gain,prolonged latency,extremely increased incidence of unwanted saccade and multi-step saccade ( U =124.000,37.000;both P ＜0.01 ),such abnormalities has already stood out even in subgroup comprised of early-stage PD patients.Meanwhile,latency of event-related potential P300 in PD group was prolonged compared with control group ((384.76 ± 34.48) ms vs (352.42 ± 24.99) ms,t =- 4.791,P ＜ 0.01 ).Multi-step saccade measurement demonstrated excellent sensitivity (96.2％ ) and specificity (94.4％) in the ability to discriminate PD patients from controls.Conclusion Memory-guided saccade in PD patients shows highly abnormal which may reflect the impairment of pontine saccade pathway and the dysfunction of frontal lobe.Memory-guided saccade test may be a useful examination in assisting the diagnosis of PD.

Objective To investigate the effect of antisense oligonucleofide(PCNA ASON)and vascuiar endothelial growth factor (VEGF) gene traneduction on restenosis after balloon angiopasty.Memods chinese rabbits were randomly divided into control group(I),PCNA ASON(II),VEGF only (Ⅲ),PCNA ASON+VEGF(Ⅳ)groups.Each group included 7 rabbits.Restenosis wasevaluated by pathology immunohistochemistry and Western-blotting for the expression of PCNA,and the depth and area oftunica media and tunicca intima were measured. Results All rabbits experienced restenosis on different severities,especially in control group.Lesions were less severe in PCNA ASON and VEGF groups than in controls.The proliferation of smooth muscle and intima significantly ameliorated in PCNA ASON and VEGF combination group that in PCNA ASON or VEGF groups(P<0.01).But the difference between the PCNA ASON and VEGF group was not significant(P>0.7). Conclusion PCNA ASON and VEGF gene transductionn are effective in preventing restenosis after balloon angioplasty caused vessel injury in rabbits.