1.Effect of the Donglian Capsule on Early Insulin Resistance in Experimental Diabetic Rats
Rui WANG ; Pu GAO ; Jiangang UU
International Journal of Traditional Chinese Medicine 2009;31(3):203-204
Objective To investigate the effects of Donglian Capsule(the combination of Ophiopogonis Tuber Polysaccharide with Rhizoma Coptidis Alkaloids, OPRA for short, Component of Chinese medicine)on early insulin resistance in experimental diabetic rats. Methods The animal model of insulin resistance in 2 type diabetic was established by injecting low dose of STZ in 60 high fat-fed SD rats. After one week, the successful models were randomly divided into 4 groups: untreated, high and low OPRA-treated, mefformin-treated group, Meanwhile, a normal control group was designed. After four weeks, the differences of FBG, PG, INS and C-P were compared among the groups. Results The OPRA can significantly reduced the level of serum TC and FBG, increased the C-E ]Lightened the IRI(P<0.01). Conclusion The OPRA can reduce the level of serum TG and FBG, and decrease insulin resistance to protect the β-cell function.
2.Application of optical coherence tomography in interventional diagnosis and treatment of borderline coronary artery disease
Zhigang HAN ; Guanghua GAO ; Rui WANG
Chinese Journal of Interventional Cardiology 1993;0(02):-
Objective To evaluate the feasibility and efficacy of optical coherence tomography (OCT) in interventional diagnosis and treatment of borderline coronary artery disease. Methods Sixteen 40%-70% angiographically stenotic lesions from 15 patients were enrolled in the current study. Intravascular OCT was applied to each lesion after informed consent was obtained to evaluate stenosis percentage, size of lipid core, thickness of fibrous cap, existence of plaque rupture, and presence of thrombosis or calcification. Therapeutic strategies were made according to OCT outcomes as well as clinical symptoms and electrocardiographic changes. Stent coverage, apposition, and tissue prolapse between stent struts were determined in the patients undertaken percutaneous coronary intervention(PCI). Results Qualitative OCT images were obtained in 14 lesions. Ten lesions were greater than 50% stenosis, with large lipid core and fibrous cap thinner than 65 ?m, and plaque ruptures were noted in 2 of the lesions. PCI were performed in these 10 lesions. Two lesions underwent predilatation and significant intima tearings and dissections were detected with OCT. Repeated OCT after stent implantation showed complete coverage in all 10 lesions. Focal incomplete apposition were noted in 2 lesions. Significant tissue prolapse occurred in 3 lesions and segmental incomplete deployment of stent in 2 lesions. The remaining 4 lesions had small lipid cores, thick fibrous caps but with no plaque ruptures, thus PCI was not performed. Conclusion Intracoronary OCT is an effective tool to determine features of coronary lesions. It plays an important role in diagnosis of vulnerable lesions, strategy-making in treating borderline coronary artery disease and evaluation of immediate result of PCI.
3.Advance in Exercise Training and Peripheral Artery Disease (review)
Zhe ZHAO ; Rui WANG ; Qianjin GAO
Chinese Journal of Rehabilitation Theory and Practice 2013;19(12):1135-1139
Peripheral artery disease is a cardiovascular risk factor. Exercise training may benefit patients with peripheral artery disease from preserving or improving functional capacity and reducing cardiovascular events. Accordingly, this article reviewed the effects of exercise training on peripheral artery disease, and the possible mechanisms
4.Functional expression of voltage-gated sodium channels Nav1.5 in human breast cancer cell line MDA-MB-231.
Rui, GAO ; Jing, WANG ; Yi, SHEN ; Ming, LEI ; Zehua, WANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2009;29(1):64-7
Voltage-gated sodium channels (VGSCs) are known to be involved in the initiation and progression of many malignancies, and the different subtypes of VGSCs play important roles in the metastasis cascade of many tumors. This study investigated the functional expression of Nav1.5 and its effect on invasion behavior of human breast cancer cell line MDA-MB-231. The mRNA and protein expression of Nav1.5 was detected by real time PCR, Western Blot and immunofluorescence. The effects of Nav1.5 on cell proliferation, migration and invasion were respectively assessed by MTT and Transwell. The effects of Nav1.5 on the secretion of matrix metalloproteases (MMPs) by MDA-MB-231 were analyzed by RT-PCR. The over-expressed Nav1.5 was present on the membrane of MDA-MB-231 cells. The invasion ability in vitro and the MMP-9 mRNA expression were respectively decreased to (47.82+/-0.53)% and (43.97+/-0.64)% (P<0.05) respectively in MDA-MB-231 cells treated with VGSCs specific inhibitor tetrodotoxin (TTX) by blocking Nav1.5 activity. It was concluded that Nav1.5 functional expression potentiated the invasive behavior of human breast cancer cell line MDA-MB-231 by increasing the secretion of MMP-9.
5.Expression of voltagE-gated sodium channel SCN5A/Nav1.5 in human ovarian cancer and its significance
Rui GAO ; Yi SHEN ; Shuxiang XU ; Ming LEI ; Zehua WANG
Tumor 2009;(7):654-658
Objective:The different subtypes of voltagE-gated sodium channels (VGSCs) are known to correlate with the migration of many malignant cancers. This study was to investigate the significance of functional expression of SCN5A/Nav1.5 in human ovarian cancer and its effects on migration capability of ovarian cancer cells in vitro. Methods: Sodium indicator SBFI and immunofluorescence method were used to detect the distribution of intracellular Na+. Real-time PCR, Western blotting, and immunohistochemistry were used to detect the mRNA and protein expression of SCN5A/Nav1.5. The effect of specific voltagE-gated sodium channels inhibitor tetrodotoxin (TTX) on cell viability was measured by CCK-8 kit. The migration and invasion of ovarian cancer cell lines SKOV-3 were tested by Transwell chamber assay. Results:SCN5A/Nav1.5 were over-expressed in ovarian cancer cell lines SKOV-3 and ovarian cancer specimens at mRNA and protein levels. TTX 30 μmol/L inhibited the intracellular Na+ concentration by (41.51±0.41)%. TTX also suppressed the invasion and migration capacities of SKOV-3 cells by (33.80±1.6)% and (43.60±2.9)%, respectively. The difference was significant (P<0.05). Conclusion:SCN5A/Nav1.5 is involved in the metastasis progression of ovarian cancer in vitro and plays an important role in the initiation and progression of ovarian cancer. It may become a target for ovarian cancer therapy.
6.A meta-analysis of the efficacy of traditional Chinese materia medica in treatment of influenza
Rui WANG ; Guiying FU ; Yuanzheng GAO ; Hua GUO
Military Medical Sciences 2014;(9):737-740
Objective To justify the clinical use of traditional Chinese materia medica (TCMM) in the treatment of influenza.Methods The literature on treatment of influenza published before December 31, 2013 was searched in MEDLINE, EMBASE, CBMdisk, Chinese National Knowledge Infrastructure (CNKI) and Wanfang Database.Results A total of 7 randomized controlled trials were identified and reviewed. Based on the meta-analysis, Yinqiao Powder prescription had similar effect to oseltamivir in defervescence [WMD=5.66, 95%CI (-32.02, 43.35), P=0.77] and viral shed-ding [WMD=-6.21, 95%CI (-84.19, 71.76), P=0.88], and Lianhuaqingwen also had similar effect in viral shed-ding [WMD=-0.24, 95%CI (-4.79, 4.31), P=0.92] but was more effective in defervescence [WMD=-4.65, 95%CI (-8.91, -0.38), P=0.03].Conclusion TCMM has a potential positive effect in the treatment of influenza.
7.Expression of lung keratinocyte growth factor receptor in the pulmonary edema of rats with acute spinal cord injury
Yifei GU ; Wen YUAN ; Lili YANG ; Rui GAO ; Chen WANG
Chinese Journal of Trauma 2013;29(10):996-999
Objective To investigate the expression of lung keratinocyte growth factor receptor (KGFR) in rats with acute spinal cord injury (ASCI) in different time points and its role in lung edema.Methods Thirty-two adult Wistar rats weighing 240 g to 260 g were assigned to experimental group (n =16) and control group (n =16) according to the random number table.Each group consisted of time points of 24 hours,3 days,1 week and 2 weeks after the modeling (4 rats per time point).A rat model of ASCI in experimental group was induced at C7 segment by dropping a weight of 10 g from the height of 2.5 cm (Allen' s method).In control group,laminas were removed only,leaving spinal cord at C7 intact.Rats were sacrificed at each time point for measurement of lung wet/dry weight ratio,Western blot analysis of expression of lung KGFR protein and RT-qPCR detection of lung KGFR mRNA expression.Results After ASCI in rats,the expressions of lung KGFR protein and mRNA began to drop at 24 hours (0.23 ±0.06,0,012 1 ±0.002 3),reached the trough at 3 days (0.17 ±0.04,0.008 5 ±0.001 7)and picked up at 1 week.Expression of lung KGFR mRNA in experiment group showed statistically significant difference from that in control group at 24 hours and 3 days (P < 0.05),whereas in each time point the difference of KGFR protein expression between experiment and control groups was statistically significant(P <0.05).Variation trend of KGFR expression was in parallel with the severity degree of pulmonary edema.Conclusion Lung KGFR presents significant down-regulation in ASCI rats and this may be associated with the development of pulmonary edema after ASCI.
8.Discussion of liver transplantation for the treatment of hepatic myelopathy
Rixin ZHANG ; Rui LIANG ; Zhenming GAO ; Qinlong LIU ; Liming WANG
Chinese Journal of Digestive Surgery 2014;13(4):315-316
Hepatic myelopathy is one of special category changes of nervous system,which was secondary to the end-stage hepatic diseases and is a syndrome of myeleterosis.It usually occurred after portosystemic shunt surgery or collateral circulation of portosystemic vein.The prognosis of hepatic myelopathy is poor,and the progression of this disease is slow.Surgical approaches such as dissociation of colon and anastomosis of ileum and rectum aimed at reducing the absorption of toxic substance and thus to breakdown the blood ammonia and improve the symptoms of nervous system,but the effects are not satisfactory.The clinical data of 1 patient with hepatic myelopathy who received liver transplantation at the Second Affiliated Hospital of Dalian Medical University in April 2012 were retrospectively analyzed.The clinical symptoms and physical signs were improved,and muscle strength was effectively recovered in the patient.Liver transplantation might be an effective method for the treatment of hepatic myelopathy.
9.Infection with adenovirus-mediated luciferase reporter gene in mesenchymal stem cells and bioluminescence imaging
Yifan WANG ; Rui XIA ; Yulin GUO ; Fabao GAO
Chinese Journal of Nuclear Medicine and Molecular Imaging 2013;33(6):473-477
Objective To construct adenovirus vector containing firefly luciferase reporter gene (AdLuc) and infect bone marrow mesenchymal stem cells (BMSC),then to take bioluminescence imaging in vitro and in vivo for identification.Methods The luciferase gene was amplified with PCR from psiCHECK-2 plasmid and cloned into the adenoviral shuttle vector (pShuttle-CMV).It was confirmed by Nhe Ⅰ/Xba Ⅰ digestion and sequencing.PShuttle-CMV-Luc and backbone vector (pAdeno) were homologous recombined.Then the recombinant plasmid was packaged in HEK293 cells and the virus titer was detected.The BMSC were infected by the recombinant adenovirus.The bioluminescence imaging in vitro was performed to determine the best multiplicity of infection (MOI),and the relationship between bioluminescence intensity and MOI was analyzed by curve fitting regression analysis.Viability was evaluated via Trypan blue staining.The transfected BMSC (l× 106) were implanted into the muscles of forelimb of SD rats,and then tracked by bioluminescence imaging in vivo.Cell viability was compared using two-way repeated measures analysis of variance between groups.Results Enzyme digestion and sequence analysis indicated that Ad-Luc was successfully constructed.The virus titer was 1 × 1010 plaque forming unit (PFU)/ml.The bioluminescence detection in vitro showed that Ad-Luc could infect BMSC high efficiently to express luciferase and the best MOI was 50.The bioluminescence intensity enhanced with increase of MOI (R2 =0.98).No statistically significant difference was found in cell viability between transfected and untransfected BMSC at 1,3,5,7 d.The cell survival rates were (92.5±2.3)% vs (94.1±1.8)%,(91.4±0.9)% vs (92.7±2.0)%,(92.1±1.6)% vs (93.3± 2.4) %,(91.9 ± 1.5) % vs (93.0 ± 3.1) %,respectively (F =4.38,P > 0.05).The bioluminescence imaging in vivo showed that BMSC survived 1,3,7 d after implantation.However,bioluminescence signal decreased gradually over time.Conclusion It is feasible to apply the optical reporter gene imaging for tracing transplanted stem cells in vitro and in vivo due to the effective transformation of luciferase reporter gene into BMSC by adenovirus vector.
10.Analytical study of community health services quality based on 5-gap model
Dahong GAO ; Rui GUO ; Shibing YANG ; Yadong WANG ; Wannian LIANG
Chinese Journal of General Practitioners 2010;9(1):41-43
In the marketing theory, service disparity model is a simple effective tool, capable of figuring out the five clusters of reasons leading to service failure. This article applies it in the community health service domain. Through the efforts of healing the five gaps in service delivery, including Consumer expectation-management perception gap, Management perception-service quality specification, Service quality specifications-service delivery gap Consumer expectation-management perception gap and Service delivery-external communications gap, we hope to improve the community health service quality radically.