1.Research progress in fluid dynamics of human upper respiratory tract
Dong SUN ; Xiuguo ZHAO ; Xinxi XU
International Journal of Biomedical Engineering 2012;35(4):242-246
With the development of technology and the deterioration of environment,more and more attention was attracted to the research on fluid dynamics in human upper respiratory tract.In this paper,the methods of research on fluid dynamics in human upper respiratory tract were introduced,and the mechanical models of human upper respiratory tract which were constructed by the scholars in the resent years were summarized.In addition,the current status of research on the airflow movements,the transportation and deposition of the particles in human upper respiratory tract was analyzed.The developing trend of this field was prospected as well.
2.Accuracy of intra-articular glenohumeral joint Injection without any guidance through modified nevaiser approach
Dong SUN ; Kanglai TANG ; Jianzhong XU
Orthopedic Journal of China 2006;0(10):-
24 h)with VAS ranging from 5-9 points.There was no occurrence of severe complications such as infection or shoulder malfunction.[Conclusion]The technique of glenohumeral joint injection without any guidance through modified Nevaiser approach is highly accurate.No complication was noted.This thechnique be widely used in glenohumeral joint injection.
3.Effectiveness of Home-Based Environmental Intervention Among Urban Asthmatics
Dong XU ; Mingxiang SUN ; Wei XIAO
Journal of Environment and Health 1993;0(01):-
Objective To determine whether an environmental intervention tailored to each patient's allergic sensitization and environmental risk factors could improve asthma-related outcomes. Methods Irritant or allergen sensitivity determined by the patient's exposure history and confirmed with skin test. Patients were asked to record 2-week days without symptoms, days off-work(or school) and ?2-agonist puffs. Pulmonary function was also examined. Ninety-six asthmatics with atopic asthma (aged 16-78 years) were randomly assigned to a control group, an intervention group that received an educational handout monthly for 2 months. Asthmatics of both groups inhalded budesonide at a daily dose 200-800 ?g and ?2-agonist as needed. Environmental intervention lasted six months and included education and remediation for exposure to allergens. The control group had no special recommendations. Results The intervention group had more days without symptoms compared with the control group (13.4 vs.10.1days, P
4.Effects of Olive Oil on Whole-cell Lipase Production of Solid-state and Submerged Fermentation by Rhizopus chinensis
Shu-Yang SUN ; Dong WANG ; Yan XU ;
Microbiology 1992;0(04):-
The effects of solid-state fermentation (SSF) and submerged fermentation (SmF) and the addition of olive oil on the whole-cell lipase production by Rhizopus chinensis CCTCC M201021 were investigated.Compared with SSF, higher biomass, hydrolytic activity and synthetic activity were observed in SmF.By the addition of olive oil, the synthetic activity of whole-cell lipase in both fermentations was enhanced significantly, especially in SmF, while the biomass and the hydrolytic activity were also increased.Hence, olive oil serves as both carbon source and the inducer of lipases in fermentation.It was also found that the synthetic activity of whole-cell lipase was not accordant to the hydrolytic activity during both SmF and SSF, suggesting that isoenzymes with difference in lipase properties may be produced by Rhizopus chinensis.
5.Determination of lcariin in Bushenning Capsules by HPLC
Dong XU ; Lili SUN ; Shubin YANG ; Jingyong SUN
Chinese Traditional Patent Medicine 1992;0(05):-
Objective: To establish a RP-HPLC method for the determination of icariin in Bushenning Capsules. Methods: The sample was prepared by water extraction-purfication through polyamide column. The determination was carried out on C 18 ODS column with mobile phase of acetonirile-water (23∶77), and detection wavelength at 270nm according to the external standard method.Results: The icariin sample size showed a good linear relationship at the range of 0.12-1.91ug and correlation coefficient was 0.9999. The average recovery of the added sample was 99.21%(n=5) and RSD was 1.79%. The RSD in a duplicate test was 2.18%.Conclusion: The method is simple, accurate, reproducibe and can be used for content determination of icariin of icariin of Bushenning Capsules.
6.The Long-term effect of augmentation rhinoplasty with silicone
Anke SUN ; Fei XU ; Wenzhong LIU ; Weidong DONG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2000;(11):501-502
Objective:To evaluate the long-term effect of augmentation rhinoplasty with silicone. Method:360 patients underwent augmentation rhinoplasty with silicone. Improved L shaped implants were used in 343patients. Result: Among 360 patients, 334 cases were successful enough (92.83 %0 ). Conclusion: The key to themaintenance of the long-term effect is to use properly improvedL-shaped implant,to choose a suitable tunnel,to prevent various complications and to ask patient's opinions for implant design.
7.Prevalence of ETS gene fusion in prostate cancer and its correlation with patients' clinicopathologic index
Jun DONG ; Li XIAO ; Zhongquan SUN ; Lu SHENG ; Jun XU
Chinese Journal of Urology 2014;35(3):195-199
Objective To explore the prevalence of ETS gene fusion in prostate cancer and its correlation with patient's clinicopathologic index.Methods Ninety-one samples from prostate needle biopsy cases with median age 75 (55-90) years and 18 samples from radical prostatectomy cases with median age 72 (63-81) years were collected from Oct.2010 to Feb.2012.TMPRSS2-ERG,TMPRSS2-ETV1 and TMPRSS2-ETV4 fusions were tested by multi-probe fluorescence in situ hybridization (FISH) assay.Fusion positive and negative cases were compared with age,TNM stage,Gleason score (median Gleason score 7 (6-9)),and PSA value (median PSA 33.4 μg/L,mcan PSA 118.8 μg/L).In needle biopsy cases,there were early stage 32 (34%),locally advanced prostate cancer 36 (40%),metastasis 23 (26%) ; in radical prostatectomy cases,there were 9 cases in T2 stage,8 cases in T3 stage,1 cases in T4a stage,respectively.Results TMPRSS2-ERG fusions were present in 14.3% (13/91,95% confidence interval,0.071-0.215)biopsy specimens and in 11.1% (2/18,95% confidence interval,0-0.256) radical prostatectomy specimens.No TMPRSS2-ETV1 or TMPRSS2-ETV4 fusions were found in any cases.Altogether,13 (86.7%)cases possessed deletion pattern.And 7 (46.6%) hold insertion pattern.5 cases had both deletion and insertion pattern.38.5% (5/13) deletion pattern had distant metastasis.Except one metastatic case harbored both deletion and insertion pattern,there was no insertion pattern accompanied with metastasis.There were no differences between fusion positive and negative cases in the distribution of age (P =1.000),PSA (P =1.138),primary Gleason score (P=2.186),Gleason score (P=2.107),TNM stage (P=2.052) and Risk Degree (P=2.597).Conclusions The TMPRSS2-ERG fusion positive cases harbor more deletion pattern than insertion pattern.There are no differences between fusion positive and negative cases in the distribution of age,PSA,Gleason score,TNM stage and Risk Degree.
8.Change of first-phase insulin secretion and its influencing factor in impaired glucose regulation individuals
Zhihui DONG ; Ziling LI ; Chunmei SUN ; Fang XU
Chinese Journal of Clinical Nutrition 2013;21(6):351-354
Objective To investigate the change of the first-phase insulin secretion in impaired glucose regulation and its influencing factors.Methods The investigation was performed in 1024 subjects who were selected by cluster sampling.The body waist circumference (WC) was examined in these subjects.Oral glucose tolerance test was performed,and fasting plasma glucose,fasting insulin as well as 30-,60-,and 120-minute plasma glucose and insulin after glucose intake were also tested.All the 1024 subjects were divided into 5 groups based on the results of oral glucose tolerance test:normal glucose tolerance group,impaired fasting glucose group,impaired glucose tolerance group,impaired fasting glucos/impaired glucose tolerance group,and diabetes mellitus group.First-phase insulin secretion index (the ratio of change in insulin to change in glucose during the first 30 minutes after glucose ingestion was calculated.Results Compared with normal glucose tolerance group (1.96 ± 1.03),the first-phase insulin secretion index significantly decreased in the impaired fasting glucose group (1.79 ±0.91) (P =0.007),the impaired glucose tolerance group (1.81 ± 0.97) (P =0.007),the impaired fasting glucose / impaired glucose tolerance group (1.59 ± 0.85) (P =0.005),and the diabetes mellitus group (1.30 ± 0.60) (P =0.004).Logistic regression analysis showed that WC was the strongest influencing factor of first-phase insulin secretion (β =0.716,P =0.000).Conclusions The firstphase insulin secretion index has already dropped in the stage of impaired glucose regulation.WC can be a useful indicator for evaluating first-phase insulin secretion.
9.Comparison of the long-term graft patency of on-pump versus off-pump coronary artery bypass grafting
Qiang WU ; Fangjiong HUANG ; Shangdong XU ; Dong SUN ; Jinfei YANG
Chinese Journal of Thoracic and Cardiovascular Surgery 2011;27(3):170-172
Objective Off-pump coronary artery bypass grafting (OPCAB) is used more widely in recent years in China. However, there is an argument on benefits and risks of off-pump surgery. Many studies shown that OPCAB had more benefits in short-term outcomes than conventional coronary artery bypass grafting(CCABG). But evidences from other studies suggested that OPCAB resulted in less long-term graft patency as compared with on-pump surgery. This study examined the longterm graft patency of OPCAB and CCABG performed by one surgeon. Methods 50 patients who had received surgical revascularization by a surgeon for more than 5 years were reviewed, 25 patients received conventional coronary artery bypass grafting ( group 1 ) and 25 patients received OPCAB ( group 2). All patients had angiograms for compareing the graft patency between the two groups. Results Among 25 patients in group 1,21 were male and 4 were female. The mean age of patients at surgery was (55.4 ±8.9) years. 15 cases had unstable angina, 16 patients had old myocardial infarction and 6 cases had diabetes.The ejection fraction (EF) was 0.58 ±0.14. The mean number of bypasses per patient was 3.32 ±0.63. Mean duration of operation was (3.58 ± 0. 82) hours. Mean follow-up duration was ( 86.52 ± 12.48) months. 83 grafts were evaluated for patency ( open vs. closed) and were graded by Fitzgibbon as grade A ( excellent graft), B ( impaired graft, with a stenosis of ≥50%, or a diameter less than 50% of the grafted artery), or O ( completely occluded). The graft patency was 73.49%, 61grafts were graded as Fitzgibbon A, 6 grafts as Fitzgibbon B and 16 grafts as Fitzgibbon 0. 25 patients were in group 2, 21males and 4 females. The mean age of patients at procedure was (58.2 ± 9.09) years, 11 patients had unstable angina, 13 patients had old myocardial infarction and 6 cases had diabetes. The ejection fraction (EF) was 0.59 ± 0. 14. Conclusion No 2011.03.013 difference in long-term graft patency was identified between on-pump and off-pump coronary artery bypass grafting. Off-pump oronary artery bypass grafting preformed by an experienced surgeon may gain similar long-term graft patency to that of conventional bypass.
10.Investigation and analysis of status of research and research utilization in practice among nurses of hospital of Traditional Chinese Medicine
Hua ZHANG ; Guihua XU ; Zhiling SUN ; Haixia GAO ; Yinfeng DONG
Chinese Journal of Practical Nursing 2014;30(27):42-45
Objective To investigate the status of research and research utilization in practice among nurses of hospital of Traditional Chinese Medicine.Methods Two hundred and sixty nurses of hospital of Traditional Chinese Medicine were selected to fill out the questionnaire.Results The rates of involvement of research activities and research utilization among nurses of hospital of Traditional Chinese Medicine were low.The score of every factor ranged from the higher to the lower were communication,organization,research and nurse.Conclusions Involvements of research activities and research utilization among nurses of hospital of Traditional Chinese Medicine are insufficient.Most factors associated with nurses' low extent of research utilization are objective factors.It is pivotal for nursing managers to construct supportive professional environment,improve nurses' research and information skills and the capacity of the research utilization.