1.Family Resilience: Concept and Application in Families with a Cancer Patient (review)
Wenhui WANG ; Zhe JIANG ; Zhi YANG
Chinese Journal of Rehabilitation Theory and Practice 2015;21(5):534-538
Family resilience explores the positive resources of a family under adversity. This paper expounded the origin, concept, related factors, framework and implications of family resilience, especially the family resilience in families with a cancer patient.
2.Differentiation of rat mesenchymal stem cells into smooth muscle cells induced by cell-to-cell contact
Zhengyun XU ; Aiqun MA ; Tingzhong WANG ; Wenhui JIANG ; Zhi HU
Chinese Journal of Tissue Engineering Research 2007;11(15):2980-2984
BACKGROUND: It is conceivable that bone marrow stem cells can differentiate into smooth muscle cells (SMCs) and contribute to neointimal formation in atherogenesis. However, the mechanism remains unknown. The "milieu-induced-differentiation" hypothesis focuses on the key role of cell-to-cell contact and cytokine on the differentiation of stem cells. Bone marrow mesenchymal stem cells (MSCs) have the potential to differentiate into SMCs.OBJECTIVE: To induce MSCs into SMCs in vitro, and investigate the influence of the differentiated SMCs or cell factors on MSCs differentiation.DESIGN: Controlled experiment in vitro with repeated observation and measurement based on cells.SETTING: Department of Cardiology, First Hospital of Xi'an Jiaotong University.MATERIALS: The experiment was accomplished in the Laboratory of Cardiology, First Hospital of Xi'an Jiaotong University between May 2003 and May 2004. SD rats of either gender were provided by the Animal Center of Xi'an Jiao Tong University, 60-80 g, 90-110 g. The following antibodies were used: Mouse anti human SM-α-actin (NeoMarkers),Mouse anti human Calponin (NeoMarkers), TRITC-coupled goat anti mouse IgG antibody (SBA). Mouse anti rat CD34 conjugated FITC (Santa Cruz), Mouse anti rat CD71 conjugated FITC (Oxford Biotechnology), Mouse anti rat anti-CD90 conjugated PE (Oxford Biotechnology). Lipofectamine 2000 (Invitrogen). PEGFP-N3 (the laboratory).METHODS: Bone marrow mesenchymal stem cells were obtained from rat bone marrow by using percoll density gradient centrifugation. SMCs were isolated by using tissue explantation method. Flow cytometer was used to detect the immunofluorescence stain. Then MSCs and SMCs were identified. MSCs were transfected with pEGFP-N3 by Lipofectamine 2000, while untransfected MSCs were taken as controls. Conditioned culture of MSCs and SMCs: ①MSCs at passage 3 were seeded on chamber slides in a 12-well culture plate. The medium was DMEM containing 0%, 5%,7.5% fetal bovine serum (FBS) and SMCs conditioned medium containing 0%, 5%, 7.5% FBS, respectively. The cells were cultured for 10-14 days and immunofluorescence analysis was performed by using monoclonal antibodies against SM-α-actin, calponin.②Indirect co-culture of MSCs with SMCs were established using a semi-permeable membrane cell culture insert. The inserts were plated into culture well. SMCs were cultured on the inside of inserts while MSCs were added to the outside of inserts, respectively. MSCs were culture alone in medium containing 3%, 7.5% FBS and immunofluorescence analysis was performed by using monoclonal antibodies against SM-α-actin, calponin.③MSCs were transfected with pEGFP-N3. After 24 hours, the MSCs were cocultivated with SMCs at an equal density for 7-14 days.As a control, MSCs were cultured alone. MSCs co-cultured were stained with antibodies against calponin, SM-α-actin. MAIN OUTCOME MEASURES: ①Identification of MSCs by floe cytometer.②cytoplasmic antigen expression of SMCs. RESULTS: ①Immunofluorescence analysis showed that MSCs expressed SM-α-actin, but did not express calponin. As a control, SMCs expressed both SM-α-actin and calponin.②Flow cytometry showed that MSCs expressed CD71 of low level, CD90 of high level and no expression of CD34. ③The MSCs transfected with green fluorescence protein continued to express for 2-3 weeks. ④MSCs grew well in SMCs conditioned medium or different concentrations of FBS. Cell growth was FBS concentration dependent in indirect co-culture system of MSCs and SMCs. Several double-positive cells in direct co-culture system were detected enhanced green fluorescence protein and antibodies against calponin, SM-α-actin. CONCLUSION: ①SMCs conditioned medium and cell factor only promote MSCs growth and cytoplasmic granules increase. But these do not induce MSCs differentiate into SMCs. ②The cell-to-cell contact is essential for MSCs differentiation to SMCs.
3.Current medical education in UK and inspiration
Mu HU ; Qian WANG ; Xiuyi ZHI ; Wenguo JIANG
Chinese Journal of Medical Education Research 2013;(3):254-256
This paper discussed on current medical education situation in UK through introducing the concept,method and system.Medical education in UK takes students as the center of education,emphasizes humanistic education and cultivates medical students' eloquence,clinical skills and scientific research.Medical education in UK sheds light on how to mobilize students' subjective initiative,improve communication skills and clinical skills,which medical education in china can draw lessons from.
5.Effect of coronary artery disease on QT dispersion
Zhi WANG ; Lihua ZHAO ; Fang HUA ; Yaqiu JIANG
Journal of Jilin University(Medicine Edition) 2006;0(05):-
Objective To observe the effect of coronary artery disease on QT dispersion (QTd). Methods The QTd and QTcd in 245 patients underwent percutaneous coronary angiography (CAG) were analyzed. It was evaluated The relations between the QTd and the degree of coronary stenosis and the number of disease vessels. Results The QTd and QTcd were significantly prolonged in patients with coronary artery stenosis than those in patients with normal coronary artery(P0.05). Conclusion There is no relation between the number of disease coronary artery and the QTd.
7.Regulatory fe fect of Hsf1 on PLC/PRF5 hepa toma cells proliferation
Qiying JIANG ; Zhi ZHANG ; Mingli WANG ; Yuanfang MA
Chinese Journal of Immunology 2014;(12):1601-1605
Objective:To explore the regulatory effect of Hsf 1 on PLC/PRF5 hepatoma cells proliferation.Methods: By shRNA gene silencing technology ,constructed PLC/PRF5 hepatoma cell line of Hsf 1 gene silencing.To detect the expression of Hsf 1, p53 and Rb proteins in PLC/PRF5 hepatoma cells by Western blot.The proliferation of PLC/PRF5 cell line was observed by methylthiazolyl tetrazolium assay ( MTT ) , plate clone formation assay ( PCFA ) and cell cycle assay.Results: shRNA-Hsf1 could significantly inhibit the expression of Hsf 1 in PLC/PRF5 cells.It could induce PLC/PRF5 cells stopping at G1 phase of cell cycle , inhibit cell proliferation and colonal formation;silencing Hsf1 caused up-regulation of p53 and Rb proteins expression in PLC/PRF5 cells.Conclusion: Silencing Hsf1 is involved in up-regulation of p53 and Rb proteins expression , which results in inhibiting proliferation of PLC/PRF5 hepatoma cells.
8.Clinical Significance of Somatosensory Evoked Potential in Children with Tourette Syndrome
jun, JIANG ; zhi-sheng, LIU ; li-li, WANG
Journal of Applied Clinical Pediatrics 2006;0(24):-
0.05).Some waves(N2,P3,N3) were even absent in children with TS and mental retardation.Statistical analysis indicated that the differences were significant(all P0.05).Conclusion The functional deficit in TS was localized prominently in cerebral cortex and subcortex,and the changes of SEP were almost same marked on both sides.
9.A Meta-analysis of the predictive effect of neutrophil-lymphocyte ratio on acute kidney injury
Zhi LU ; Lihua WANG ; Lan JIA ; Fang WEI ; Aili JIANG
Chinese Critical Care Medicine 2021;33(3):311-317
Objective:To systematically evaluate the predictive value of neutrophil-lymphocyte ratio (NLR) in acute kidney injury (AKI).Methods:All studies about the predictive effect of NLR on AKI were searched in the National Medical Library of the United States PubMed Database, the Embase database in the Netherlands, the Chinese Biology Medicine disc (CBMdisc) and the Chinese Evidence Based Medicine Cochrane Centre Database (CEBM/CCD). The data updated by October 2020, and regardless of language, region or whether blind method was used. Two authors independently extracted data and evaluated the quality of the studies. Data extracted from the studies were analyzed with RevMan 5.3 to assess the predictive value of NLR on AKI. A subgroup Meta-analysis was conducted to assess the predictive value of NLR on AKI according to different countries, different disease types (cardiovascular surgery, infectious diseases, other diseases including burns, cirrhosis, and emergency), and different sample sizes (≤ 300 cases and > 300 cases). The publication bias of included studies about the predictive effect of NLR on AKI were assessed by funnel plots.Results:A total of 11 studies were included in this Meta-analysis, including 4 997 patients, 1 308 patients in AKI group, and 3 689 patients in non-AKI group. The Meta-analysis results showed that: increased NLR had predictive value for the occurrence of AKI [mean difference ( MD) = 2.73, 95% confidence interval (95% CI) was 1.78-3.68, P < 0.000 01]. Subgroup analysis showed that increased NLR had predictive value for the occurrence of AKI in patients from Southeast Asia ( MD = 4.04, 95% CI was 1.09-6.99, P = 0.007) and Eurasia ( MD = 2.51, 95% CI was 1.12-3.90, P = 0.000 4). Increased NLR had predictive value for the occurrence of AKI in patients undergoing cardiovascular surgery ( MD = 0.77, 95% CI was 0.34-1.20, P = 0.000 4), infectious diseases ( MD = 4.74, 95% CI was 1.51-7.96, P = 0.004) and other diseases ( MD = 8.53, 95% CI was 6.26-10.80, P<0.000 01). Increased NLR had predictive value for the occurrence of AKI in studies with a sample size of ≤ 300 cases ( MD = 6.02, 95% CI was 4.90-7.14, P <0.000 01) and > 300 cases ( MD = 1.32, 95% CI was 0.61-2.03, P = 0.000 3). There was no significant publication bias in the included studies assessed by funnel plots. Conclusion:NLR is an important predictive tool for AKI.
10.Preparation of two poor water soluble drugs - nanoporous ZnO solid dispersions and the mechanism of drug dissolution improvement.
Bei GAO ; Changshan SUN ; Zhuangzhi ZHI ; Yan WANG ; Di CHANG ; Siling WANG ; Tongying JIANG
Acta Pharmaceutica Sinica 2011;46(11):1399-407
Nanoporous ZnO was used as a carrier to prepare drug solid dispersion, the mechanism of which to improve the drug dissolution was also studied. Nanoporous ZnO, obtained through chemical deposition method, was used as a carrier to prepare indomethacin and cilostazol solid dispersions by melt-quenching method, separately. The results of scanning electron microscope, surface area analyzer, fourier transform infra-red spectroscopy, differential scanning calorimeter and X-ray diffraction showed that drugs were implanted into nanopores of ZnO by physical adsorption effect and highly dispersed into nanopores of ZnO in amorphous form, moreover, these nanopores strongly inhibited amorphous recrystallization in the condition of 45 degrees C and 75% RH. In addition, the results of the dissolution tested in vitro exhibited that the accumulated dissolutions of indomethacin and cilostazol solid dispersions achieved about 90% within 5 min and approximately 80% within 30 min. It was indicated in this study that the mechanism of drug dissolution improvement was associated with the effects of nanoporous ZnO carrier on increasing drug dispersion, controlling drug in nanopores as amorphous form and inhibiting amorphous recrystallization.