2.Pyrosequencing and its application in clinical diagnosis and therapy.
Mei-hua YE ; Jian CHEN ; Mao-de LAI
Chinese Journal of Pathology 2013;42(2):138-142
Adenosine Triphosphate
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metabolism
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Colorectal Neoplasms
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diagnosis
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genetics
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DNA Methylation
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Diphosphates
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metabolism
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Glioma
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diagnosis
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genetics
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Humans
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Isocitrate Dehydrogenase
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genetics
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Janus Kinase 2
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genetics
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Mutation
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Myeloproliferative Disorders
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diagnosis
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genetics
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Polymorphism, Single Nucleotide
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Proto-Oncogene Proteins
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genetics
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Proto-Oncogene Proteins p21(ras)
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Sequence Analysis, DNA
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methods
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Templates, Genetic
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ras Proteins
;
genetics
3.Assessment of serum cardiac troponin T and C-reactive protein in predicting hemodialysis outcome
Xianguang CHEN ; Hua WU ; Yonghui MAO ; Mei WANG
Chinese Journal of Nephrology 1997;0(03):-
Objective To investigate serum cardiac troponin T(cTnT) and C-reactive protein (CRP) levels and assess the prognostic values of cTnT and CRP of mortality and cardiovascular events in maintenance hemodialysis (MHD) patients. Methods One hundred and six MHD patients were enrolled in this study. Serum cTnT, CRP, creatinine, albumin were measured in pre-hemodialysis at the beginning of the study. The mortality and cardiovascular events were recorded during the period of follow up. Results At the initiation of the study,28 patients (26.42%) were recorded with positive cTnT level, 32(30.19%) with positive CRP and 16 (15.09%) with positive cTnT and CRP. Logistic regression analysis showed a significant correlation between serum cTnT and serum CRP and Scr. Patients with positive cTnT and CRP levels had higher mortality and more cardiovascular events than those with negative levels. Kaplan-Meier survival analysis showed a significant difference between patients with normal and abnormal cTnT and CRP levels. Conclusions Some MHD patients have elevated serum cTnT level. Serum cTnT level is correlated with serum CRP and creatinine level. Patients with positive cTnT and CRP levels have higher mortality and more cardiovascular events than those with negative levels.
4.Evaluation of in-stent restenosis in coronary artery with high definition computed tomography angiography
Wufei CHEN ; Yibo SUN ; Dingbiao MAO ; Yanqing HUA
Journal of Practical Radiology 2014;(10):1642-1645
Objective To explore the accuracy of high definition computed tomography angiography (HDCTA)in the evaluation of coronary in-stent restenosis.Methods 93 patients with 159 implanted coronary stents who underwent both HDCTA and CAG were included in the study.The sensitivity,specificity,positive predictive value (PPV),negative predictive value (NPV)and diag-nostic accordance rate of HDCTA were calculated.The imaging quality was analyzed by visual estimation.Possible factors that in-fluenced the diagnostic accuracy of HDCTA were evaluated,which included stent location,stent diameter and heart rate in the pa-tients with left anterior descending branch stents.Results Restenosis was found in 21 stents by CAG and 19 stents by HDCTA.The false positive and false negative were 5 and 3,respectively.Sensitivity,specificity,PPV,NPV and diagnostic accordance rate were 90.5%,96.4%,79.2%,98.5% and 95.6% respectively.The image quality was 4 score in 75 stents (47.1%),3 score in 33 (20.8%),2 score in 27 (17%),≤1 score in 24 (15.1%).The image quality of proximal segments,large stents (≥3.0 mm)and slow heart rate (<66 beast per minute)was significantly better than that of distal segments,small stents (<3.0 mm)and fast heart rate (≥6 6 beast per minute).Conclusion HDCTA is a convenient,efficient and non-invasive method for follow-up after im-plantation of the coronary artery stents.
5.Effects of astragalus polysaccharides on metabolism of collagen in diabetic cardiomyopathy
wei, CHEN ; hong-ying, YE ; mao-hua, YU
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(10):-
Objective To investigate the effects of astragalus polysaccharides(APS)on the metabolism of collagen in hamsters with diabetes mellitus(DM) and explore the possible mechanism of APS on diabetic cardiomyopathy. Methods The levels of insulin,C-peptide,myocardial enzymes,glycosylated serum protein(GSP),plasma and myocardial angiotensin(AngⅡ) were tested in APS group(n=15) and DM control group(n=15).Immunohistochemistry was used to measure the expression levels of typeⅠand typeⅢ collagen,activities of matrix metalloproteinases(MMPs) were examined by using zymography,and TNF-? and TGF-? mRNA were detected by RT-PCR. Results Compared with DM control group,levels of GSP,myocardial enzymes and myocardial AngⅡ were much lower in APS group(P0.05).The level of expression of collagen Ⅰ,the ratio of collagen Ⅰ/collagen Ⅲ,and the activity of pro-MMP-2 and MMP-2 in APS group were significantly lower than those in the DM group(P
6.Contents of serum free fatty acid in old patients with metabolic syndrome and influencing factors
yan-ping, XIA ; gang, CHEN ; mao-hua, YU
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(09):-
Objective To investigate contents of serum free fatty acid(FFA)in old patients with metabolic syndrome(MS)and to analyze its correlation with the components of MS.Methods Among 1 372 over 60-year-old people undergoing physical examination,169 patients with MS and 89 healthy subjects were selected as MS group and control group.The blood pressure,height,weight,waist circumference,and hip circumference were measured.Levels of fasting blood glucose,insulin,blood lipid,and serum FFA were measured.Waist-hip ratio(WHR),body mass index(BMI),and insulin resistance index(HOMA-IR)were calculated.Results The levels of waist circumference,WHR,BMI,fasting blood glucose and insulin,HOMA-IR,blood lipid,and serum FFA in MS group were significantly higher than those in control group.The levels of HDL-C were lower in MS group(P
8.Multi-slice Spiral CT Manifestations of the Arrhythmogenic Right Ventricular Dysplasia
Lin QI ; Dingbiao MAO ; Ming LI ; Yang CHEN ; Yanqing HUA
Chinese Journal of Medical Imaging 2013;(11):834-836,840
Purpose To investigate the diagnostic value of the arrhythmogenic right ventricular dysplasia (ARVD) using multi-slice spiral CT (MSCT). Materials and Methods Thirty-four patients who were suspected as ARVD received right ventricular radiography, including 16 ARVD patients and 15 non-ARVD patients regarded as control group. The structural and shaped change of heart on reconstructed images of long axis, short axis and four cavity surface and analyze were observed, and MSCT features of right ventricular radiography characteristics were analyzed for ARVD patients. Results Sixteen cases of ARVD were correctly diagnosed by MSCT, and 14 cases had fatty infiltration including 11 cases of apex of heart, 8 cases of inferior wall, 5 cases of anterior wall, 5 cases of anterior wall of funnel area, 3 cases of diagram, 4 cases of papillary muscle, 6 cases of muscular trabecula and moderator band and 1 case of whole right ventricular free wall. Five cases showed scallop sign, 16 cases excessive trabecular change, 11 cases thinned changes, and 16 cases enlarged changes of right ventricular wall. Conclusion MSCT features of right ventricular for ARVD have relative diagnostic characteristics, and the scallop sign and excessive trabecular change of right ventricular wall are its specific imaging characteristics.
9.Astragalus polysaccharides influence ultrastructure of islets and Th1/Th2 cvtokine gene expression of pancrease in NOD mice
Wei CHEN ; Yi-Ming LI ; Mao-Hua YU ;
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
The effects of astragalus polysaccharide (APS) on type 1 diabetes mellitus were investigated. The mRNA expressions of Th1/Th2 cytokines of pancrease and ultrastructure of islet were studied.Ultrastructure of islets was well protected in APS group;the mRNA expressions of Th1 cytokines were downregulated and those of Th2 cytokines were upregulated in APS group.APS may correct the imbalance of Th1/Th2 cytokines.
10.Impacts of the two payment packages on the hospitalization expenses of cancer patients covered by two medical insurance schemes
Wenhui MAO ; Yunyu HUANG ; Wen CHEN ; Hua LIU ; Jian LIN
Chinese Journal of Hospital Administration 2012;(11):828-832
Objective To analyze the hospitalization expenses of cancer patients covered with byitem payment and quota payment packages,and probe into the impacts on such expenses for the two payment packages.Methods Inpatient records of 600 cancer patients were sampled by random from the medical insurance databases of Zhengzhou and Fuzhou to learn their hospitalization expenses and impact factors.Results Under the by-item payment package,the expenses of urban workers’ medical insurance were found higher than those of urban residents' medical insurance,with a per capita expense of RMB 32747.70 ± 32035.01 and 23035.83 ± 22875.65 respectively.Under the quota payment package however,there were no significant differences between expenses of the two kinds of inpatients,with a per capita expense of RMB 66043.41±47562.09 and 66576.54±73417.29 respectively.Conclusion There are gaps of reimbursement level between the two basic insurance schemes,which may not disappear in a short time.Under the by-item payment package,the gap exists in the difference of perreimbursement amount; under the quota payment package,the gap is negligible between the two populations under different insurance schemes.It is recommended to make reasonable use of these different payment schemes to minimize the relative gaps in medical service accessibility caused by the difference in reimbursement level.