1.Evaluation of the model for end-stage liver disease and Child-Turcotte-Pugh score on the surgical prognosis in patients with liver cirrhosis
Xinhe SHI ; Peng KANG ; Chaojun LI
Chinese Journal of Postgraduates of Medicine 2012;35(26):29-31
Objective To investigate the value of the model for end-stage liver disease (MELD) and Child-Turcotte-Pugh (CTP) score in predicting the prognosis of patients with liver cirrhosis.Methods Seventy patients with liver cirrhosis were selected.The MELD and CTP score before surgery was calculated and was analyzed the correlation between the two models was analyzed.The prognosis ability by the area under the receiver operating characteristic (ROC) curve was evaluated.Results Twenty three cases (32.9%,23/70) appeared post operative serious complication.The scores of MELD and CTP in complication group (23 cases) was (19.58 ±5.90),(8.84 ± 1.87) scores,the scores of MELD and CTP in without complication group (47 cases) was ( 12.27 ± 2.94),(6.10 ± 1.12) scores,there were significant differences between two groups (P < 0.01 ).According to the MELD score,70 patients was divided into < 14 scores group(30 cases),14 - 23 scores group(28 cases),> 23 scores group( 12 cases),the rate of complication was 10.0%(3/30),35.7%( 10/28 ) and 83.3%(10/12),there were significant differences among three groups(P< 0.05).According to the CTP score,70 patients were divided into A grade(29 cases),B grade (25 cases) and C grade( 16 cases),the rate of complication was 10.3% ( 3/29 ),36.0% (9/25) and 68.8% ( 11/16 ),there were significant differences among three groups (P < 0.05 ).The results of Pearson correlation analysis showed that the MELD score and CTP score had significant correlation (r =0.874,P < 0.01 ).The area under the ROC curve of the MELD score and CTP score in prognosis the perioperative complication was 0.877 (95% CI:0.84 - 0.95 ) and 0.852 (95% CI:0.83 - 0.94),there was no significant difference ( U =0.157,P > 0.05 ).Conclusion Both MELD and CTP score can accurately predict the short term prognosis of patients with liver cirrhosis.
2.Effect of suppression of long non-coding RNA-BG on radiosensitivity of normal human bronchial epithelial cell line Beas-2B
Chang LIU ; Chaojun PENG ; Lili WANG ; Wei ZHU ; Jiaying XU ; Yang JIAO
Chinese Journal of Radiological Medicine and Protection 2014;34(5):323-328
Objective To investigate the biological functions of IncRNA-BG on the radiosensitivity of normal human bronchial epithelial cell line Beas-2B.Methods Three IncRNA-BG siRNAs were designed,synthesized and traasfected into Beas-2B cells via lipofectamine.The RNA transcription level of BG was detected by quantitative real time-PCR to confirm the siRNA transfection efficiency.The experiment was divided into control group,control siRNA transfected group,and BG transfected group.Cell survival was detected by clonogenic assay,and the cell cycle distribution was determined by flow cytometry assay.The γ-H2AX foci formation after irradiation was visualized via immunofluorescence.Western blot assay was performed to detect the protein expressions of RAD50,p-P53,KU70,KU80,MDM2,CDK2 and RB.Results BG-siRNA transfection significantly reduced the BG transcription level (t =8.32-15.29,P <0.05) and increased cell survival after irradiation at 0.5,1,2,4 and 6 Gy.Analyzed with the multi-target model,the SERD0 of Beas-2B cells and control siRNA transfected cells were calculated to be 0.80 and 0.82,respectively.In addition,BG-siRNA transfection enhanced radiation-induced cell cycle arrest at G2 phase so that,after 4 Gy irradiation,the cells in G2 phase was increased from (37.37 ±0.63) % of control siRNA cells to (64.19 ± 1.01) % (t =30.65,P < 0.05).Meanwhile,the γ-H2AX foci of BG-siRNA transfected cells was decreased from 76 ± 1.78 per 100 cells to 59-± 3.49 per 100 cells (t =13.72,P <0.05).The expressions of DNA damage related proteins including KU70,KUS0,CDK2 and RB were increased,but the expressions of p-P53 and RAD50 were decreased.Conclusions LncRNA-BG could regulate the radiosensitivity of the normal human bronchial epithelial cells,probably through inducing cell cycle G2 phase arrest and promoting DNA damage repair after irradiation.
3.Surrogate biomarkers identification for neuropsychiatric lupus by proteomic fingerprint technology
Huan CHEN ; Ling SUN ; Hua CHEN ; Chaojun HU ; Yongzhe LI ; Peng WANG ; Jing XIE ; Denian BA ; Wei HE ; Xuan ZHANG
Chinese Journal of Rheumatology 2012;16(6):402-405
Objective To identify biomarkers in cerebrospinal fluid (CSF) by proteomic technology and develop a diagnostic model for neuropsychiatric lupus (NPSLE).Methods CSF proteomic spectra of 27 patients with NPSLE before and after treatment,and 27 controls including 17 patients with scoliosis,and 10 SLE patients without neuropsychiatric manifestation (non-NPSLE) were generated by matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS) combined with weak cationic exchange (WCX) magnetic beads.Data were analyzed with t test,non-parametric Kruskal-Wallis H test or Wilcoxon sign-rank test.A decision tree model for NPSLE classification was built based on the discriminating peaks.In addition,CSF samples of 12 patients with NPSLE,12 patients with lumbar disc herniation and 9 patients with other neurological conditions were employed as blind test group to verify the accuracy of the model.Results Twelve discriminating mass-to-charge (m/z) peaks were identified between NPSLE and controls.The diagnostic decision tree model,built with a panel of m/z peaks 8595,7170,7661,7740 and 5806,recognized NPSLE with the sensitivity and specificity of 92.6% and 92.6% based on training group samples,91.7% and 85.7% based on blind test group,respectively.Conclusion Potential CSF NPSLE biomarkers are identified by proteomic technology,the novel diagnostic model is sensitive and relatively specific for the diagnosis of NPSLE.
4.Effects of nitrogen application levels on yield and active composition content of Desmodium styracifolium.
Jiamin ZHOU ; Xiaohong YIN ; Chaojun CHEN ; Min HUANG ; Fuyuan PENG ; Xiaoqi ZHU
China Journal of Chinese Materia Medica 2010;35(12):1533-1536
OBJECTIVETo find out the optimal nitrogen application level of Desmodium styracifolium.
METHODA field experiment using randomized block design was carried out to study the effects of 5 nitrogen application levels (150, 187.5, 225.0, 262.5 and 300.0 kg x hm(-2)) on yield and active component content of D. styracifolium.
RESULTNitrogen application could increase the yield and contents of polysaccharide, total flavonoides and total saponins of D. styracifolium. However, the enhancing extent of the active component content and the yield were not always significant with the increase of nitrogen level. In which, the yield were not significantly different among the nitrogen application levels of 225.0, 262.5, 300.0 kg x hm(-2) the polysaccharide content was no significantly difference among the nitrogen application levels of 225.0, 262. 5 and 300.0 kg x hm(-2), the total flavonoides content under the nitrogen level of 300.0 kg x hm(-2) was significantly lower than that of 150.0 kg hm(-2) (P < 0.01), and the total saponins content under the nitrogen level of 300.0 kg x hm(-2) was no significant difference compared with that of 262.5 kg x hm(-2).
CONCLUSIONThe optimal nitrogen application level of D. styracifolium was 225.0-262.5 kg x hm(-2).
Fabaceae ; chemistry ; metabolism ; Fertilizers ; analysis ; Flavonoids ; analysis ; metabolism ; Nitrogen ; analysis ; metabolism ; Plant Extracts ; analysis ; metabolism ; Polysaccharides ; analysis ; metabolism ; Soil ; analysis
5.Differential Proteomic Analysis of Sera From Lung Squamous Carcinoma Patients and Healthy Individuals
Ganjuan NIE ; Jianhua ZHOU ; Maoyu LI ; Pengfei ZHANG ; Chaojun DUAN ; Cui LI ; Hong YI ; Cene TANG ; Xueping FENG ; Fang PENG ; Zhuchu CHEN ; Zhiqiang XIAO
Progress in Biochemistry and Biophysics 2006;0(03):-
To screen for serum biomarkers for lung squamous carcinoma, two-dimensional gel electrophoresis (2-DE) was performed to separate serum proteins from healthy individuals and stage 1 lung squamous carcinoma(LSC) patients, respectively. PDquest software was used to analyze 2-DE images, and the differential serum protein spots between the healthy individuals and LSC patients were identified by ESI-Q-TOF MS/MS. Then Western blot and immunohistochemistry were used to detect the expression levels of haptoglobin-2(HP-2), one of the differential proteins, in the sera and tumor tissues in the patients with LSC, respectively. 2-DE maps of serum proteins from healthy individuals and stage 1 LSC patients were established. Ten differential serum protein spots were detected, four proteins of which were identified by MS/MS. Western blot showed that the serum level of HP-2 in the LSC patients was significantly higher than that in healthy individuals, but was not associated with LSC staging. Immunohistochemistry showed that the expression level of HP-2 in the LSC tissues was significantly higher than that in the normal bronchial epithelial tissues adjacent to tumors. The results indicated that serum HP-2 protein is a candidate biomarker for LSC, and might be useful for diagnosis of LSC. Up-regulation of HP-2 in the LSC tissues may contribute to the high serum level of HP-2 in the patients.
6.A multi-center clinical study for ANA specific autoantibodies detection by chemiluminescent immunoassay
Chaojun HU ; Jing LUO ; Shulan ZHANG ; Chuiwen DENG ; Xin ZHANG ; Like ZHAO ; Qinglin PENG ; Ping ZHU ; Cibo HUANG ; Guochun WANG ; Shengyun LIU ; Yongfei FANG ; Xiaosan CHEN ; Le LIU ; Qingchun LI ; Jiyang LI ; Mengtao LI ; Xiaofeng ZENG
Chinese Journal of Laboratory Medicine 2017;40(8):602-608
Objective To evaluate the clinical performance of chemiluminescent immunoassay (CLIA) on anti-nuclear antibody(ANA) specific autoantibodies testing.Methods A multi-center clinical study A total of 811 Sera samples were collected from 6 collaborating hospitals during the period of April to July 2016, and tested with CLIA and line immunoassay (LIA) in parallel for autoantibodies to ribonucleoprotein(RNP), smith antigen(Sm), SSA/Ro60,SSB/La, centromere protein B(CENPB), double-stranded DNA(dsDNA), nucleosome(Nuc), and ribosome P protein(Rib-P).The positive rate,specificity and qualitative coincidence rate for each antibody between CLIA and LIA methods were analyzed.All discrepant samples for systemic lupus erythematosus (SLE) highly specific autoantibodies (including anti-Sm, dsDNA, Nuc and Rib-P) were retested by enzyme linked immunosorbent assay (ELISA) and further analyzed with SLE disease cohort using McNemar test.Results The positive rate and specificity of CLIA and LIA for antibodies to ANA specific antigens were comparable.Excellent qualitative coincidence were found between CLIA and LIA for the detection of anti-RNP, SSA/Ro60, SSB/La and CENPB (Kappa>0.75), while the coincidence rate foranti-Sm, dsDNA, Nuc and Rib-P detection were moderate (0.4
7.Expression of two transcript variants of long noncoding RNA C6orf176 in non-small cell lung cancer and its clinical significance.
Jun WANG ; Zhenzi PENG ; Yeping DONG ; Dan HE ; Chaojun DUAN ; Xinying LI
Journal of Central South University(Medical Sciences) 2016;41(6):560-565
OBJECTIVE:
To explore two transcript variants expression of long noncoding RNA C6orf176 in non-small cell lung cancer (NSCLC) and the clinical pathological significance.
METHODS:
The expressions of transcript variant 1 (TV1) and transcript variant 2 (TV2) of long noncoding RNA C6orf176 in 57 NSCLC and adjacent cancerous tissues were examined by qPCR with β-actin as internal control.
RESULTS:
Based on the results of qPCR, for C6orf176-TV1, 42 cases were down-regulated and 15 cases were up-regulated. The C6orf176-TV1 level was correlated to the grade of differentiation (P<0.05) but it was not correlated with gender, age, smoking history, tumor type and TNM stage. The expression of C6orf176-TV1 had a potential value in diagnosis of NSCLC by receiver operator characteristic (ROC) curve. Area under curve (AUC) of ROC curve was 0.708 (95% CI 0.615 to 0. 802). The sensitivity and specificity were 51% and 88%, respectively. For C6orf176-TV2, 39 cases were down-regulated and 18 cases were up-regulated. The C6orf176-TV2 level was correlated with the grade of differentiation (P<0.05) but it was not correlated with gender, age, tumor size, smoking history and TNM stage. C6orf176-TV2 level had value in diagnosis of NSCLC by ROC curve. AUC of ROC curve was 0.64 (95% CI 0.531 to 0.749). The sensitivity and specificity were 49% and 75%, respectively. Of the 57 specimens, 53 cases were simultaneous up or down-regulation of C6orf176-TV1 and C6orf176-TV2. The correlation coefficient was 0.99.
CONCLUSION
The expression of C6orf176-TV1 or C6orf176-TV2 is down-regulated in NSCLC and it is correlated with the grade of differentiation. It may act as a diagnosis indicator for NSCLC patients.
Actins
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Area Under Curve
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Carcinoma, Non-Small-Cell Lung
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Cell Differentiation
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Down-Regulation
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Gene Expression Regulation, Neoplastic
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Humans
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Lung Neoplasms
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RNA, Long Noncoding
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ROC Curve
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Real-Time Polymerase Chain Reaction
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Smoking
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Transcription, Genetic
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Up-Regulation