1.The relationship of plasma level of brain natriuretic peptide and left ventricular hypertrophy in patients with essential hypertension
Qing WANG ; Lili DUAN ; Bin DU
International Journal of Laboratory Medicine 2008;29(7):602-603
Objective To investigate the relationship of plasma level of brain natriuretic peptide (BNP) and left ventricular hypertrophy (LVH) in patients with essential hypertension. Methods The plasma level of BNP was measured with electrochemiluminescence immunoassay method in 32 hyper- tensive patients without left ventricular hypertrophy (LVH) (NLVH group), 30 patients with essen- tial hypertension with LVH (LVH group), and 30 healthy adults (control group). Doppler echocar- diography was employed to determine left ventrieular mass index (LVMI) and observe the correlation of plasma BNP level with LVMI. Results The plasma BNP level was significantly elevated in LVH group than that of NLVH group and control group (P<0.01). The plasma BNP level was significant- ly higher in NLVH group than that of control group (P<0.01). BNP level was positively correlated with LVMI in hypertensive patients with LVH (r= 0.64, P<0. 01). Conclusion BNP level may reflex the degree of left ventricular hypertrophy in patients with essential hypertension.
2.Imaging diagnosis and clinical characteristics of aortic dissection
Bin ZHANG ; Chun WANG ; Xiaoping YU ; Qing WANG ;
Journal of Third Military Medical University 2003;0(14):-
Objective To analyze the diagnostic and clinical characteristics of aortic dissection (AD) and to evaluate the imaging findings and their clinical significance. Methods The clinical characteristics and imaging findings in 32 AD patients were analyzed retrospectively. Results Hypertension was the primary pathogen for AD. The first and main symptoms included acute chest and back pain. Chest X ray examination was the screening method for AD. Computerized tomography (CT) and transthoracic echocardiogram (TTE) had higher sensitivity, and magnetic resonance imaging (MRI) had the highest accuracy. Digital subtraction angiography (DSA) was performed mainly for preoperative diagnosis or endovascular graft exclusion. Conclusion The clinical characteristics of AD include sudden onset, high risk, and varied and complicated clinical manifestations. Option of one or all of the chest X ray examinations, including TTE, CT, MRI, and DSA, may be the most important method for the diagnosis of AD.
3.Cloning and expression analysis of Sirt2 in HEK293 cells
Tao WANG ; Wei WANG ; Qing XU ; Luyuan GUAN ; Bin ZHANG
Journal of Cellular and Molecular Immunology 2009;25(11):970-972
AIM:To construct eukaryotic expression vector of Sirt2 and detect its expression in HEK293 cells. METHODS: Total RNA was isolated from brain tissue of a-dult SD rat. A 1 130 bp fragment containing the coding region of Sirt2 was amplified by RT-PCR and the resulting PCR product was subcloned into PMD20-T vector and se-quenced. Coding region of Sirt2 was generated with PCR by using the PMD20-T-Sirt2 as template, the amplified PCR fragment was inserted into the EcoR I and Hind Ⅲ sites of the pcDNA3. 1myc-his(-)A expression vector, and the sequence was confirmed by DNA sequencing. The expression of new construct pcDNA3.1 myc-his(-) A-Sirt2 in HEK293 cells was detected by immunofluorescence. RESULTS: The full length coding region of Sirt2 was obtained and confirmed by sequencing, the expression of Sirt2 was detected successfully in HEK293 cells. CONCLUSION: The eukaryotic expression vector of Sirt2 has been successfully constructed, which will provide a useful tool for designing an in-depth investigation of the role of Sirt2.
5.Study on correlation between genetic polymorphisms of ADIPOR 2 with atherothrombosis cerebral infarction
Bin YUAN ; Lijun ZHANG ; Qing LI ; Chaowei WANG
Chongqing Medicine 2016;45(21):2936-2938
Objective To explore the relationship between genetic polymorphisms of ADIPOR2 with serum APN level ,inti‐ma‐media thickness(IMT)and atherothrombosis cerebral infarction risk .Methods The case control study was adopted ,300 patients with atherothrombosis cerebral infarction in our hospital from September 2009 to September 2014 were selected as the observation group ,meanwhile contemporaneous 300 individuals undergoing the physical examination were selected as the control group .The clinical data in all the subjects were collected and performed the carotid arterial examination ,the serum APN level was detected ,the rs12342 polymorphism of ADIPOR2 gene was detected .The genetic polymorphisms of ADIPOR2 were compared between the two groups and its relationship with serum APN and IMT was analyzed .Results The probability for suffering from atherothrombosis cerebral infarction in the AA genotype was increased compared with the GG genotype ,the difference was statistically significant (OR=1 .903 ,95% CI:1 .092-2 .703 ,P=0 .011) .Compared with the control group ,the IM T values in various subgenotype groups of the observation group were elevated ,while the APN levels were decreased ,the differences were statistically significant ( P<0 .01) .Compared with the genotype GG ,the IM T values in the genotype AA and AG were increased and APN levels were de‐creased ,the differences were statistically significant (P<0 .01) .Conclusion Genetic polymorphisms of ADIPOR2 maybe a genetic locus for the pathogenesis of Chinese Han people of atherothrombosis cerebral infarction .
6.Preliminary study on CXCR4 nuclear localization sequence in metastatic renal cell carcinoma
Qian LIU ; Linhui WANG ; Qing YANG ; Bin XU ; Yinghao SUN
Academic Journal of Second Military Medical University 2001;0(09):-
Objective:To investigate the role of SDF-1/CXCR4 in metastasis of renal cell carcinoma and to observe the intracellular location of different CXCR4 segments in renal carcinoma cells.Methods:The potential nuclear localization sequences of different CXCR4 were discovered by nuclear localization software and experiments.Full length and truncated forms of CXCR4 were fused with green fluorescent protein pEGFP-N1 and their influence on subcellular localization was examined by confocal microscopy after transfecting them into renal carcinoma cell line A498.Results:Analysis with PSORT Ⅱ Prediction revealed that the nuclear localization sequence region of CXCR4 was located between amino acids 146 and 149(RPRK).Expression products of the recombinant plasmids with SDF-1 stimulation,including EGFP-CXCR4(1-510 bp),EGFP-CXCR4(1-765 bp) and wild-type EGFP-CXCR4,were mainly located in the cell nuclei.However,expression product of EGFP-CXCR4(1-267 bp) with SDF-1 stimulation was mainly located in the renal cell cytoplasm.Expression product of wild-type EGFP-CXCR4 full length plasmid without SDF-1 stimulation was mainly located in the cell cytoplasm;these results accorded with the results of bioinformatics analysis.Conclusion:Nuclear localization sequence of CXCR4 is located in the amino acids 90 to 170,which provides a theoretical basis for further clarifying the nuclear localization sequences of CXCR4 in renal cell carcinoma cells and for finding new potential target for inhibiting the metastasis of renal cell carcinoma.
7.Development of time-resolved immunofluorometric assays for Dickkopf-1 and application on sera of patients with lung cancer
Shile SHENG ; Qing WANG ; Wenxin QIN ; Bin YU ; Gang HUANG
Chinese Journal of Laboratory Medicine 2008;31(11):1259-1263
Objective To develop a highly sensitive and accurate time-resolved immunofluorometric assay (TR-IFMA) for measurement of Dickkopf-1(DKK-1),as a novel serologic biomarker for lung cancer. Methods The study constructed a two-manoclonal-antibody "sandwich"-type assay and the sensitivity, within run CV and between run CV and accuracy were evaluated. Serum DKK-1 concentrations were measured by TR-IFMA in 120 healthy controls, in 72 benign lung disease patients, and in 212 lung cancer patients before surgery. The association between serum DKK-1 levels and clinicopathological features were evaluated. Results A standard curve for DKK-1 TR-IFMA had been developed with good sensitivity (0.08 μg/L). Both within run CV and between run CV were less than 6.5%. Accuracy studies, parallelism and precision data were determined and all found to be satisfactory. The validity of DKK-1 assay was confirmed by the good correlation between the results obtained by TR-IFMA and commercial ELISA (r=0.972, P=0.01). The serum levels of DKK-1 were higher in lung cancer patients 31.93(79.47-18.03) μg/L than in benign lung diseases 15.25(18.41-11.49) μg/L and in healthy controls 13. 90( 16. 91-11.02) μg/L DKK-1 levels were significant associated with the presence of distant metastases, as well as lymph node metastases and TNM stage, but not with patients' age, gender and tumor histology. At the cutoff of 22.63 μg/L, the diagnostic sensitivity, specificity, accuracy, positive predictive value and negative predictive value of the TR-IFMA for lung carcinoma were 68.4%, 92.2%, 82.1% ,90.6% and 72.5%. Diagnostic sensitivity and accuracy were higher for small cell carcinoma than for non-small cell carcinoma (70.7% vs 69.5% and 85.6% vs 80.7%, respectively). Conclusions A highly sensitive and reliable TR-IFMA for DKK-1 has been developed. The determination of serum DKK-1 levels may be useful for diagnosis and tumor staging of lung cancer.
8.A study on detecting specific antibodies of hemorrhagic fever with renal syndrome and treatment with integrated traditional Chinese and western medicine
Feng CHU ; Qing JI ; Runmin YAN ; Xiaming WANG ; Bin PEI
Journal of Integrative Medicine 2004;2(1):20-3
OBJECTIVE: To explore a simple speedy specific and sensitive method to detect specific IgM (sIgM) and IgG (sIgG) antibodies of hemorrhagic fever with renal syndrome (HFRS),and to study the therapeutic effects of integrated traditional Chinese and western medicine on HFRS. METHODS: The serum of 559 patients with HFRS were tested with colloidal gold immuno-dot assay (CGIDA) for sIgM and sIgG antibodies and compared with enzyme linked immunosorbent assay (ELISA) or indirect fluorescent antibody test (IFAT). One hundred and one patients with HFRS were randomized into treatment group (n=50),treated with Kuhuang Injection, Shenmai Injection and Huangqi Liquid) and control group (n=51),treated with Ribarvirin and Ganlixin Injection). RESULTS: The positive rate of sIgM detected with CGIDA was 70.8% and the positive rate of sIgG detected with CGIDA was 87.5%. The days for fever decline, symptoms alleviation and sign relief between the treatment group and control group were similar (P>0.05). The days for recovery of kidney function in the control group was less than that in the treatment group (P<0.01). The rate of crossing shock stage in the treatment group was higher than that of the control group (P<0.01). CONCLUSION: CGIDA was more simple, speedy, specific and sensitive than ELISA or IFAT in detecting the sIgM or sIgG antibodies in serum of patients with HFRS. Although the sensitivity of CGIDA was lower than that of ELISA the CGIDA had no false positive reaction the sensitivity of CGIDA was higher than that of IFAT on detecting IgG. The effect of the treatment group was similar to that of the control group. But the crossing shock stage rate in the treatment group was higher than that of the control group while the control group was better than the treatment group in recovering the kidney function.
9.Effect of Integrated Pharmaceutical Care on Rational Drug Use in Patients Treated with Ambulatory Chemotherapy
Liang TAO ; Bin ZHU ; Zheyuan WANG ; Bo YU ; Qing ZHAI
China Pharmacist 2014;(10):1729-1731
Objective:To promote the rational drug use in the patients treated with ambulatory chemotherapy. Methods:A model of integrated pharmaceutical care was established using such service as the real-time prescription examination, configuration standardi-zation, active care and prescription review. Results:The integrated pharmaceutical care could effectively reduce the unreasonable drug use, optimize drug use structure, lower the medical expenses and provide supporting data for clinical decision-making. Conclusion:The development of integrated pharmaceutical care in the patients treated with ambulatory chemotherapy is an important field for phar-macists displaying professional skills, which can promote the rational drug use. The treatment efficacy and life quality of cancer patients can be improved with the cooperation of doctors, nurses and pharmacists.
10.Comparison of routine test kits of creatinine in human serum with reversed-phase high-pressure liquid chromatographic assay
Jing XU ; Qing-Tao WANG ; Guo-Bin XU ;
Chinese Journal of Laboratory Medicine 2000;0(06):-
98.95%.The results of certified reference materials were consistent with the target value,and average deviation was -0.31%~1.35%.HPLC was served as the independent variable.When ereatinine was 200 ?mol/L,Bias of Beckman LX20 system,Vitros dry chemistry system and enzymatic method were -10%~13%,-13%~14% and -20%~10%,respectively.Bias of enzymatic method results was mostly negative,when creatinine was