1.Application effect of exercise rehabilitation therapy on patients with chronic heart failure
Chinese Journal of cardiovascular Rehabilitation Medicine 2019;28(6):1-5
To explore influence of exercise rehabilitation therapy on inflammatory factor levels and cardiac func‐tion in patients with chronic heart disease (CHD).Methods :A total of 92 CHF patients of our department from Jun 2016 to May 2018 were randomly and equally divided into routine treatment group and exercise rehabilitation group (received ex‐ercise rehabilitation training based on routine treatment group ) ,both groups were intervened for six months .Cardiac func‐tion ,6min walking distance (6MWD) ,levels of inflammatory factors ,quality of life (QOL) before and after treatment were observed and compared between two groups .Results :Compared with routine treatment group after six months ,there were significant reductions in left ventricular end diastolic volume [LVEDV ,(61.26 ± 8.03) ml vs.(55.77 ± 7.75) ml] , left ventricular end systolic volume [LVESV ,(54.89 ± 6.15) ml vs.(51.36 ± 4.99) ml] ,levels of CRP [(21.41 ± 4.14) ng/ml vs.(18.18 ± 4.22) ng/ml] ,TNF‐α [ (18.46 ± 4.69) ng/ml vs.(15.67 ± 3.37) ng/ml] ,IL‐6 [ (80.09 ± 14.47) ng/ml vs.(71.88 ± 16.16) ng/ml] ,score of Minnesota living with heart failure questionnaire [ (49.50 ± 6.91) scores vs. (46.74 ± 5.12) scores] ,and significant rise in LVEF [ (43.11 ± 4.59)% vs.(45.33 ± 5.58)%] and 6MWD [ (265.70 ± 12.37) m vs.(336.89 ± 11.23) m] in exercise rehabilitation group , P<0.05 or <0.01. Conclusion :Exercise rehabilita‐tion therapy can significantly improve inflammatory factor levels ,cardiac function and QOL ,and reduce rehospitalization rate within six months in CHF patients .
2.The diagnostic performance of version 2018 LI?RADS for hepatocellular carcinoma on Gd?EOB?DTPA enhanced MRI
Caiwei YANG ; Hanyu JIANG ; Bin SONG ; Jie CHEN
Chinese Journal of Radiology 2019;53(12):1060-1064
Objective To explore the diagnostic performance of the most recent 2018 version of liver reporting and data system (LI?RADS) on gadolinium?ethoxybenzyl?diethylenetriamine pentaacetic acid (Gd?EOB?DTPA) enhanced MRI to diagnose hepatocellular carcinoma (HCC) in high?risk patients. Methods From July 2015 to September 2018, 130 consecutive high?risk patients with 134 focal liver lesions were retrospectively enrolled in our center and underwent Gd?EOB?DTPA?enhanced MRI and subsequent hepatectomy within 1 month. Two independent radiologists blindly reviewed the preoperative MR images of all patients, and determined the presence of major features, ancillary features and the LI?RADS categories according to the version 2018 LI?RADS of each liver observation. The sensitivity, specificity, positive predictive value, negative predictive value, Youden index and accuracy of the 2018 version of LI?RADS were evaluated with postoperative histopathological results as references. The inter?observer agreement between the two radiologists was tested by Kappa analysis. Results The Kappa value of the LI?RADS categories between two radiologists was 0.628 (95%CI: 0.565 to 0.691). The sensitivity, specificity, Youden index values and accuracy of LR?5 by the two reviewers were 80.4% (78/97), 87.6% (85/97); 75.7% (28/37), 73.0% (27/37); 0.560 8, 0.605 9; 79.1% (106/134), 83.6% (112/136), respectively. These measures of LR?4+LR?5 were 91.8% (85/97), 96.9% (94/97); 67.6% (25/37), 67.6% (25/37); 0.605 9, 0.644 6; 82.1% (110/134), 88.8% (119/134), respectively. Conclusion Version 2018 LI?RADS demonstrated high sensitivity and accuracy to diagnosis HCC in high?risk patients on Gd?EOB?DTPA enhanced MRI.
3. The diagnostic performance of version 2018 LI-RADS for hepatocellular carcinoma on Gd-EOB-DTPA enhanced MRI
Caiwei YANG ; Hanyu JIANG ; Bin SONG ; Jie CHEN
Chinese Journal of Radiology 2019;53(12):1060-1064
Objective:
To explore the diagnostic performance of the most recent 2018 version of liver reporting and data system (LI-RADS) on gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA) enhanced MRI to diagnose hepatocellular carcinoma (HCC) in high-risk patients.
Methods:
From July 2015 to September 2018, 130 consecutive high-risk patients with 134 focal liver lesions were retrospectively enrolled in our center and underwent Gd-EOB-DTPA-enhanced MRI and subsequent hepatectomy within 1 month. Two independent radiologists blindly reviewed the preoperative MR images of all patients, and determined the presence of major features, ancillary features and the LI-RADS categories according to the version 2018 LI-RADS of each liver observation. The sensitivity, specificity, positive predictive value, negative predictive value, Youden index and accuracy of the 2018 version of LI-RADS were evaluated with postoperative histopathological results as references. The inter-observer agreement between the two radiologists was tested by Kappa analysis.
Results:
The Kappa value of the LI-RADS categories between two radiologists was 0.628 (95
4.Overview of Gp96 mediated immunity.
Caiwei CHEN ; Xiaojuan JIA ; Songdong MENG ; Wenjun LIU
Chinese Journal of Biotechnology 2011;27(5):704-711
As a member of the HSP90 family, heat shock protein (HSP) Gp96 is one of the most abundant proteins in the endoplasmic reticulum (ER), which displayed important molecular chaperones function in cells. Gp96 can stimulate the production of cytokines by activating the antigen presentation cells (such as dendritic cell, et al) in innate immunity. It is capable of eliciting an antigen-specific cytotoxic T lymphocyte (CTL) immune response to eliminate pathogens and tumors by facilitating antigen cross-presentation in adaptive immunity. Gp96 is also an ideal adjuvant in many recent researches. Here, we review the progress that addresses the role of biological characteristics, immunogenic mechanism that may be involved in the induction of anti-infection immune response and antitumor immunity, which may guide the new vaccine strategies with the knowledge of Gp96-antigen complexes.
Adjuvants, Immunologic
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genetics
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metabolism
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Antigen-Presenting Cells
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physiology
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Communicable Diseases
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immunology
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Dendritic Cells
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immunology
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Endoplasmic Reticulum
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immunology
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Humans
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Membrane Glycoproteins
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immunology
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Neoplasms
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immunology
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T-Lymphocytes, Cytotoxic
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immunology
5.Daidzein alleviates high glucose-induced pyroptosis of renal tubular epithelial cells
Caiwei CHEN ; Yueping WU ; Zhuansuo WANG ; Qiang LUO ; Bozhen XING
Basic & Clinical Medicine 2023;43(12):1801-1807
Objective To investigate the impact of daidzein(DAI)on the pyroptosis of renal tubular epithelial cells induced by high glucose by regulating NOD-like receptor protein 3(NLRP3)/caspase-1 signal pathway.Methods HK-2 cells were divided into control group(NC group)(5.5 mmol/L D-glucose),HG group(30 mmol/L D-glucose),DAI-L,DAI-M,DAI-H groups(HK-2 cells were incubated with 30 mmol/L D-glucose and 25,50,100 μmol/L DAI,respectively),and DAI-H+LPS group(HK-2 cells were incubated with 30 mmol/L D-glucose,100 μmol/L DAI and 1 μg/mL LPS).MTT assay was applied to detect the cytotoxicity and proliferation of HK-2 cells;the apoptosis of HK-2 cells was detected by flow cytometry.The level of interleukin-1β(IL-1β)and inter-leukin-18(IL-18)in HK-2 cells was detected by ELISA.The morphology of pyroptosis cells was ob-served by scanning electron microscope.Immunofluorescence staining was applied to detect pyroptosis related pro-teins.The expression of NLRP3,cleaved casase-1 and GSDMD-N was detected by Western blot.Results In NC group,the cells were spherical with regular boundaries,while in HG group,the cells swelled and became larger with irregular boundaries;the OD value(490 nm)of HK-2 cells in HG group was obviously lower than that in NC group(P<0.05),the apoptosis rate,IL-1β,IL-18 contents,NLRP3,cleaved casase-1,GSDMD-N protein level of HK-2 cells were obviously higher(P<0.05);After DAI treatment,the swelling of cells was alleviated,the A value(490 nm)of HK-2 cells increased significantly(P<0.05),the apoptosis rate of HK-2 cells,IL-1 β,IL-18 content,NLRP3,cleaved-caspase-1 and GSDMD-N protein levels were significantly decreased(P<0.05)and the therapeutic effect of DAI was dose-dependent;LPS eliminated the beneficial effect of DAI-H on high glucose in-duced apoptosis of renal tubular epithelial cells.Conclusions DAI may alleviate pyroptosis of renal tubular epithe-lial cells induced by high glucose through inhibition of NLRP3/caspase-1 signaling pathway.
6.Dapagliflozin attenuates endothelial cell pyroptosis and dysfunction induced by oxidized low-density lipoprotein
Quanwei ZHAO ; Hui LI ; Danan LIU ; Caiwei GONG ; Long CHEN
Chinese Journal of Tissue Engineering Research 2024;28(1):80-85
BACKGROUND:Dapagliflozin,an inhibitor of sodium-glucose cotransporter 2,can delay the progression of atherosclerosis by regulating glucose metabolism,inhibiting inflammation and improving endothelial cell function. OBJECTIVE:To study the effect of dapagliflozin on cell pyroptosis and endothelial dysfunction induced by oxidized low-density lipoprotein. METHODS:Human umbilical vein endothelial cells were divided into a control group(no intervention),a model group(treated with oxidized low-density lipoprotein for 24 hours),and a dapagliflozin group(treated with oxidized low-density lipoprotein + dapagliflozin for 24 hours).Endothelial cell proliferation activity was measured by cell counting kit-8 assay.The levels of intercellular adhesion molecule 1,vascular cell adhesion molecule 1,and monocyte chemotactic protein-1 in cell supernatant were detected using ELISA.Nitric oxide level in the cells was detected by nitrate reductase assay.The pyroptosis rate and characteristics of endothelial cells were detected by Hoechst 33342/PI fluorescence co-staining and lactate dehydrogenase release assay.The protein expression levels of NLRP3,caspase-1,GSDMD,interleukin-1β,and interleukin-18 were detected by western blot assay. RESULTS AND CONCLUSION:(1)Oxidized low-density lipoprotein could cause pyroptosis and dysfunction of endothelial cells.(2)Compared with the control group,the level of nitric oxide and cell activity were decreased(P<0.05),while lactate dehydrogenase,intercellular adhesion molecule 1,vascular cell adhesion molecule 1,and monocyte chemotactic protein-1 levels were significantly increased in the model group(P<0.05).Compared with the model group,cell activity and nitric oxide levels significantly increased(P<0.05),but lactate dehydrogenase,intercellular adhesion molecule 1,vascular cell adhesion molecule 1,and monocyte chemotactic protein-1 levels were significantly diminished in the dapagliflozin group(P<0.05).(3)Compared with the model group,cell pyroptosis rate and the protein expression of pyroptosis factor NLRP3,caspase-1,GSDMD,interleukin-18 and interleukin-1β significantly reduced in the dapagliflozin group(P<0.05).(4)The results indicate that dapagliflozin inhibits oxidized low-density lipoprotein-induced endothelial pyroptosis and ameliorates endothelial cell dysfunction.