1.Risk evaluation and monitoring of prophylaxis and treatment in tumor-associated venous thromboembolism
Chinese Journal of Laboratory Medicine 2016;39(10):739-742
Being one of the most important complications and also one of the leading cavses of death, venous thromboembolism ( VTE) could significantly increase the morbidity and mortality of patients with tumor.Therefore, accurate assessment of VTE risk and early prophylaxis according to the risk level are important to reduce the incidence of VTE, as well as to improve the quality of life and disease prognosisin patients with cancer.In this paper, we introduced the laboratory indicators that could be used for risk assessment of tumor-associated VTE and monitoring of prophylaxis and treatment in tumor patients with VTE.We aimed to strengthen the awareness of tumor-associated VTE and expected to provide help for clinical practice.
2.Comparative Study on MSCT-3D and COPT in Stomatology
Lixin ZHANG ; Hua GU ; Yantao NIU ; Qian CAO ; Hongtao NIU
Chinese Journal of Medical Imaging 2009;(6):449-453
Purpose:To explore the value of MSCT-3D in stomatology through comparing with COPT.Materials and Methods:Both MSCT 117 patients and COPT 117 patients in stomatology were selected at a particular period,COPT imaging was using computed post-processing,MSCT imaging was processed according to 3D information through work station,then to analyze the imaging results according to metal tooth、damaged tooth and broken tooth,later to compare the photograph 、the technique of computed post-processing、the photograph condition and exposure of MSCT and COPT.Results:Normal COPT patients were 9 cases ( 0.24% ),normal teeth were 3160 (84.4% ),unusual teeth were 551 (15.6%),normal MSCT-3D patients were llcases ( 0.29% ),normal teeth were 3138 (83.8% ),and unusual teeth were 606 (16.2% ).COPT belonged to COPT photograph,the emphasis was 2D,MSCT-3D belonged to spiral photograph,the emphasis was 3D,and MSCT imaging could be processed according to 3D reformation.The 3D effect of MSCT was batter than that of COPT.The radiation dosage was much higher than that of COPT.Conclusions: COPT could get 2D effects: MSCT-3D could improve 3D results on 2D basis,but the radiation dosage of MSCT is much higher than that of COPT in stomatology.
3.The changes and significance of T-cell subgroups, cytokines and immunoglobulins in children with asthma
Chunming ZHANG ; Guanghua NIU ; Zhushan QIAN
Chinese Journal of Postgraduates of Medicine 2008;31(24):4-6
Objective To study the changes of serum levels of T-cell subgroups,cytokines and immunoglobulins on the pathogenesis of asthma in children,and explore the role of them in the pathogenesis of asthma. Methods Forty children with asthma (asthma attack group and asthma convalescence group) and 25 healthy children (control group) were enrolled in this study.The level of CD3+CD4+ and CD8+T-cell were determined using flow cytometry (FCM).The levels of TNF-α,IL-6,IL-8 and IgE were determined using ELISA, the level of IgG,IgA and IgM were detected by immunoturbidimetry.Results Compated with control group,there were higher levels of CD3+ and CD4+T-cell and CD4+/CD8+ in asthma attack group (P<0.01),and higher levels of CD4+T-cell and CD4+/CD8+ in asthma convalescence group (P<0.05),while no difference in the level of CD8+T-cell The level of CD4+T-cell and CD4+/CD8+ were higher in asthma convalescence group than those in control group (P<0.05).The level so IL-6,IL-8 and TNF-αin asthma attack group were higher than those in asthma convalescence group and control group (P<0.05 or<0.01),the level of TNF-α was significantly higher in asthma convalescence than that in control group (P<0.05).There were higher levels of IgE and IgG in astham attack group than those in asthma convalescence group and control group (P<0.01 or<0.05),the level of IgA was lower than than in conrtol group (P<0.01).There was higher level of IgE in asthma convalescence group than that in control group (P<0.01).Conclusions The immune imbalance exists in children with asthma at both attack and convalescence stages.A long-time anti-allergy trealment for childhood nsthma is necessary.
4.Abnormal Eating Behavior and the Influential Factors among Female Middle School Students in Beijing
Mingyi QIAN ; Jing NIU ; Jing NIE
Chinese Mental Health Journal 2002;0(09):-
Objective:To investigate the distribution of abnormal eating behaviors among middle school girls in Beijing and the psychological factors having influence on these behaviors Methods: HDI and ESC-21 were used to investigate 636 female middle school students in Beijing Results: (1) According to the BMI of the subjects, 80 3% of the subjects answered that they had paid attention to their weight and stature (2) The mean BMI of the subjects were 19 38, which is in the normal range, but their ideal body mass index(IBMI)was lower than the normal standard (IBIM
5.Expression and clinical significance of tGF-?1,Cyclin E in gallbladder carcinoma
Jian NIU ; Suzhou CHEN ; Haixin QIAN
China Oncology 1998;0(04):-
Purpose:To investigate the expression of TGF-?1,Cyclin E in (primary) gallbladder carcinoma and its clinical significance. Methods:The expression of TGF-?1,Cyclin E in gallbladder carcinoma was detected by S-P immunohistochemical staining,20 cases of chronic cholecystitis were collected as control. Results:①The positive rate of TGF-?1(63.89%),Cyclin E(47.22%) in gallbladder carcinoma increased significantly(P
6.Expression and Clinical Significance of TGF-?1 and p27 in Gallbladder Carcinoma
Jian NIU ; Shuzhou CHEN ; Haixin QIAN
Chinese Journal of Bases and Clinics in General Surgery 2003;0(06):-
Objective To investigate the expression of tumor growth tactor ?1 (TGF-?1) and p27 in gallbladder carcinoma and their relation to the development of the carcinoma. Methods The expression of TGF-?1 and p27 in 36 cases of gallbladder carcinoma was detected by SP immunohistochemical staining. Twenty cases of chronic cholecystitis were collected as control. Results The positive rate of TGF-?1 (63.9%) was higher than that of the control (10.0%), P
7.Diagnostic value of plasma 1,3-β-D-glucan test in invasive fungal infections
Xiongjie QIAN ; Liping NIU ; Honglin YANG
International Journal of Laboratory Medicine 2015;(1):53-54
Objective To investigate the diagnostic value and optimal threshold value of plasma 1,3-β-D-glucan test (G test)in the invasive fungal infections (IFI).Methods 46 patients diagnosed with IFI in our hospital from February 2012 to March 2014 were enrolled in this study,and 30 patients without IFI underwent surgical elective surgery in our hospital were selected as the neg-ative controls.The plasma 1,3-β-D-glucan content was quantitatively detected by using MB-80 microbial dynamic rapid detection system and its supporting G test kit.The results were evaluated by ROC curve for the determination of the optimal threshold value of G test.Results The plasma 1,3-β-D-glucan levels were (45.28±44.50)pg/mL in the IFI group and (8.62±4.85)pg/mL in the control group respectively,and the difference was statistically significant (P <0.05 ).The results of ROC curve analysis showed that the optimal threshold value of plasma 1 ,3-β-D-glucan used for diagnosis of IFI was 14.7 pg/mL;the area under the curve was up to 0.937;95% CI was between 0.888 and 0.990;the sensitivity and specificity were 88.9% and 90.3% respectively;G test had a better diagnostic efficiency.Conclusion The plasma 1 ,3-β-D-glucan test has a diagnostic application value for IFI,which can be used as the early warning indicator of IFI.
8.The application of problem-based learning with computer aided technology in teaching of breast surgery clinical practice
Zhaohe NIU ; Qian DONG ; Haibo WANG
Chinese Journal of Medical Education Research 2014;13(11):1148-1151
Objective To probe the teaching method of application of problem-based learning (PBL)with computer aided technology in teaching of breast surgery clinical practice.Methods 48 students were randomly divided into two groups:control group(n=24) were taught by lecture-based learning(LBL),experimental group (n=24) were taught by method of application of problem-based learning(PBL)with computer aided technology.Questionnaire was provided to the students of experimental group to investigate the degree of recognition to the teaching method of problem-based learning (PBL)with computer aided technology.5 patients from experimental group and 5 patients from control group participating in teaching were given questionnaires to investigate if their right of privacy were violated.The theory examination score(out of 50) and comprehensive skills assessment score (out of 50) were compared between the two groups; the mean differences between the two groups were compared by t test.Result The teaching method of application of problem-based learning(PBL) with computer aided technology was recognition by 91.7 %(22 persons) of students.20 percent(one person) of the experimental group patients felt their right of privacy violated; 60 percent(three persons) of the control group patients felt their right of privacy violated.The theory test scores of the experimental group and control group were (46.23 ± 2.45) and (45.52 ± 3.29).There was no statistical significance (t=1.230,P=0.225).The skill test scores of the experimental group and control group were(47.23± 2.45) and (36.52 t 3.29).There was statistical significance(t=12.791,P=0.000).Conclusion The teaching method of application of problem-based learning(PBL) with computer aided technology can help encourage the study interest of students,and cultivate their clinical thinking method and capacity,and protect the right of privacy of the patients,avoiding patient-hospital disputes.
9.Measurement method of arterial shear stress of rats model based on ultrasonic particle imaging velocimetry.
Yiheng XHU ; Ming QIAN ; Lili NIU ; Hairong ZHENG ; Guangwen LU
Journal of Biomedical Engineering 2014;31(6):1355-1360
The development and progression of atherosclerosis and thrombosis are closely related to changes of hemodynamics parameters. Ultrasonic pulse wave Doppler technique is normally used for noninvasively blood flow imaging. However, this technique only provides one-dimensional velocity and depends on the angle between the ultrasound beam and the local velocity vector. In this study, ultrasonic particle image velocimetry method was used to assess whole field hemodynamic changes in normal blood vessels. By using the polynomial fitting method, we investigated the velocity gradient and assessed the shear in different blood flow velocity of 10 healthy rats. It was found that using four polynomial fitting could result in optimal measurement results. The results obtained by ultrasonic particle image velocimetry accorded with the results obtained using Doppler technique. The statistical average of cyclical vessel wall shear stress was positively related to the locational mean velocity. It is proven that ultrasonic particle image velocimetry method could be used to assess directly the real-time whole field hemodynamic changes in blood vessels and was non-invasively, and should be a good prosperous technique for monitoring complex blood flow in stenotic ar- teries.
Algorithms
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Animals
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Arteries
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diagnostic imaging
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pathology
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Blood Flow Velocity
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Echocardiography, Doppler
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Hemodynamics
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Models, Cardiovascular
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Rats
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Rheology
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Stress, Mechanical
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Ultrasonics
10.Study on the risk factors for coronary artery lesions in children with Kawasaki disease in Lanzhou
Lin ZHU ; Shaomin NIU ; Xiangyu DONG ; Yinan YANG ; Qian NI
Journal of Clinical Pediatrics 2014;(7):616-619
Objective To investigate the risk factors for coronary artery lesions (CALs) in children with Kawasaki disease (KD) in Lanzhou. Methods One hundred and seventy-four children with diagnosed KD were divided into CAL group and non-CAL group based on the existence of concurrent CALs. The age, gender, fever duration, intravenous immunoglobulin (IVIG) start time, IVIG dose, C-reactive protein (CRP), serum albumin, erythrocyte sedimentation rate (ESR), platelet (PLT), red blood cell count (RBC), hemoglobin and so on were compared. Results Among the 174 children, 46 children (26.44%) were complicated by CALs and 128 children were not. The differences of average fever duration, IVIG starting time, IVIG dose, PLT, CRP, ESR and RBC were statistically signiifcant (P<0.05). Conclusions When KD children has the fever durations>10 d, start of IVIG af-ter 10 days of fever, increase of PLT, CRP and ESR and decrease of RBC, clinicians should be alert to the risk of concurrent CAL.