1.The effect observation of carvedilol and metoprolol on MMP-9 changes and left ventricular remodeling in patients with hypertension heart disease
Chinese Journal of Primary Medicine and Pharmacy 2015;(15):2352-2355
Objective To study the curative effect of MMP-9 changes on left ventricular hypertrophy patients with hypertension heart disease by carvedilol and metoprolol.Methods 168 cases were divided into two groups.The control group(84 cases)applied metoprolol.The observation group applied carvedilol.The changes of IVST,LVPWT, LVMI and LVGI,expression of MMP-9 were observed in two groups after treatment.Results The values of IVST, LVPWT,LVMI and LVGI,expression of MMP-9 were decreased after treatment.But the decreased values of IVST [(1.72 ±0.35 )mm vs (0.36 ±0.11 )mm,t =5.75,P <0.05 ],LVPWT[(0.66 ±0.25 )mm vs (0.24 ± 0.18)mm,t =4.32,P <0.05],LVMI[(16.23 ±3.35)g/m2 vs (7.44 ±2.24)g/m2 ,t =9.86,P <0.05 ],LVGI [(0.52 ±0.12)g/m2 vs (0.40 ±0.11)g/m2 ,t =4.24,P <0.05],MMP-9[(76.23 ±20.87)vs(42.55 ±10.87),t =6.54,P <0.05]were higher in the observation group than in the control group.Conclusion The treatment of carvedilol is satisfied,can improve ventricular remodeling,decreased the expression of MMP-9,and is worthy of being recommended in left ventricular hypertrophy patients with hypertension heart disease.
2.Regulatory effects of insulin and glucose on aquaporin adipose expression in 3T3-L1 adipocytes
Hongwen ZHOU ; Yu DUAN ; Jiawei CHEN
Chinese Journal of Endocrinology and Metabolism 2001;0(05):-
Aquaporin adipose (AQPap) is the physiological glycerol channel specific to adipocytes. By means of semiquantitive RT-PCR and Western blotting, this study showed that insulin was a negative regulator of AQPap expression, while high concentration of glucose could increase AQPap expression.
3.The new hypoglycemic mechanism and other effects of metformin.
Huanhuan CHEN ; Hongwen ZHOU ; Chao LIU
Chinese Journal of Practical Internal Medicine 2001;0(03):-
Metformin has been applied for 50 year.In recent years,new studies found that metformin could reduce glucose through activating inhibition of dipeptidyl peptidase Ⅳ(DPP Ⅳ) and enhancing the biological effect of glucagon-like peptide-1(GLP-1).In addition,metformin can reduce vascular disease risk of patients with type 2 diabetes by improving insulin resistance and the effect of reducing total cholesterol(TC),low-density lipoprotein cholesterol(LDL-C),blood coagulation factor Ⅶ,plasminogen activator inhibitor-1(PAI-1) and proteinuria.Merformin can't change blood pressure of patients with type 2 diabetes,however,it can significantly reduce the salt-sensitive blood pressure of patients with obesity.Metformin has also been applied to patients with polycystic ovary syndrome(PCOS).It can induce ovulation,decrease the rate of abortion and have effect on hypertrichosis and hyperandrogenism.Besides,metformin has been the focus of the treatment of non-alcoholic fatty liver disease.
4.Gene mutation and enzymatic activity analysis of α-galactosidase A in a patient with Fabry disease
Wen WANG ; Jian JIANG ; Xiaoli CHEN ; Tao YANG ; Hongwen ZHOU
Chinese Journal of Endocrinology and Metabolism 2010;26(1):27-31
Objective To analyse the clinical characteristics,gene mutation and enzymatic activity of αgalactosidase A(α-GalA)in a 15-year-old male patient with typical Fabry disease,whose mother was without any clinical manifestations.Methods Clinical features and laboratory data were collected from the patient and his mother.Genomie DNA was extracted from peripheral blood of the patient.his mother,and a healthy control subject.Seven exons of the GLA gene were amplified by PCR.PCR products were purified.cloned into T vector,and then sequenced.The enzymatic activity of α-GalA Was measured by fluorimetrie substrate assay. Results DNA sequencing results showed that a missense mutation of 10036-10038delAAG in exon 7 WaS identified in the patient,resulting in the replacement of 374 lysine and 375 glyeine by arginine,which Was not previously reported.The patient Was a hemizygote with gene mutation,his mother WaS a heterozygote carrying gene mutation,and the healthy control without mutation.α-GalA enzymatic activity assay showed that the enzymatic activity of the patient with GLA gene mutation was only 50%of the healthy control subject,while the enzymatic activity of the patient's mother Was about 70%of the heahhy control SObject.Conclusiolls Detecting GLA gene mutation and α-GalA enzymatic activity in patients with Fabry disease who have been clinically diagnosed seelns to be helpful in finding other patients in the family and in further understanding the molecular pathogenesis of that disease.
5.Evaluating myocardial function of a cardiomyopathy rabbit model following bone marrow stromal cell transplantation by tissue Doppler echocardiography
Hongwen FEI ; Xinfang WANG ; Mingxing XIE ; Cheng ZHOU ; Yale HE
Chinese Journal of Tissue Engineering Research 2009;13(23):4523-4528
BACKGROUND: Tissue Doppler echocardiography (TDE) has been proved to evaluate general and local function of heart but less reported on adriamycin-induced cardiomyopathy following bone marrow stromal cell (BMS) transplantation.OBJECTIVE: To evaluate myocardial function of an adriamycin-induced cardiomyopathy rabbit model following BMS transplantation using TDE.DESIGN, TIME AND SETTING: A randomized animal control study was performed at Laboratory of Ultrasound, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology from September 2002 to December 2003.MATERIALS: A total of 28 male adult Japanese rabbits weighing (2.0+0.2) kg were used in this study. Adriamycin was used to induce cardiomyopathy model in 20 rabbits.METHODS: Twenty-eight male Japanese rabbits were randomly divided into three groups: cell transplantation group (n=10),PBS group (n=10), and sham operation group (n=8). BMSs were isolated from cell transplantation group at the 8th day. On the 12th week, cells were labeled with 4, 6-diamidino-2-phenylindole (DAPI), and then epicardial directly injected into the myocardium of the same rabbits in thoracotomy surgery. Non-cell only culture fluid PBS was injected in PBS group. Sham operation group underwent thoracotomy surgery with the same volume of saline injection.MAIN OUTCOME MEASURES: Left ventricular function was assessed by conventional and tissue Doppler echocardiography before and 4 weeks after surgery. Histological examination including apotisis study and DAPI fluorescent were assessed after sacrificed.from (4.0+1.1) cm/s to (5.3+1.2) cm/s (P < 0.05) around the inject site, but the improvement of global myocardial function was not found by conventional echocardiography. In PBS and sham operation group there were no differences in global and myocardium at 4 weeks after transplantation. Histological findings showed that the injury of the myocardium around the injection site was relieved with less apoptosis.
6.Single-center comparative analysis of panel reactive antibodies of 280 cases detected by two methods
Guojie KUANG ; Hongwen WU ; Wenqiang ZHOU ; Li XIAO
Chinese Journal of Tissue Engineering Research 2014;(5):767-772
BACKGROUND:Liquid chip techniques (Luminex) is a recently rising method for detecting anti-panel reactive antibody, which is characterized by high sensitivity, and strong specificity, less interference and high flux.
OBJECTIVE:To compare the sensitivity and detection difference of panel reactive antibody in serum of kidney disease patients detected by enzyme-linked immunosorbent assay and Luminex.
METHODS:Serum samples of 280 patients with kidney disease were selected. The enzyme-linked immunosorbent assay and Luminex methods were used to measure positive rate of panel reactive antibody. Chi-square test for fourfold table data was utilized for statistical analysis.
RESULTS AND CONCLUSION:The positive rates of panel reactive antibody were respectively 18.9%and 33.6%as detected by enzyme-linked immunosorbent assay and Luminex method. The positive rates of anti-HLA-I antibody and anti-HLA-II antibody were respectively 12.8%and 12.5%, as detected by enzyme-linked immunosorbent assay. The positive rates of anti-HLA-I antibody and anti-HLA-II antibody were respectively 25.0%and 20.7%, as detected by Luminex method. Positive detection rate was significantly higher in the Luminex group than that in the enzyme-linked immunosorbent assay group. Moreover, Luminex method could precisely detect the low-concentration antibody. Chi-square test for fourfold table data showed P<0.01. Significant differences in the differences of panel reactive antibody of kidney disease patients were detected between the two methods. Results demonstrated that compared with enzyme-linked immunosorbent assay, Luminex method is more sensitive and accurate, and more suitable for clinical detection.
7.Establishment of a rat model of atherosclerosis with syndrome of intermingled phlegm and blood stasis and intervention experiment with a Chinese medicine prescription Danlou tablet
Jie CHEN ; Jing MIAO ; Xinbin ZHOU ; Hongwen CAI ; Wei MAO
Chinese Journal of Comparative Medicine 2015;(9):22-27
ObjectiveToestablisharatmodelofatherosclerosiscombinedwithsyndromeofintermingledphlegm and blood stasis , to observe the inflammatory reactions and the treatment effect of prescription ( Danlou tablet ) on the rat model.Methods Thirty-two healthy male SD rats were randomly and equally divided into four groups , namely, normal control group, model control group, atorvastatin group (ATV group), and Danlou group (DLP group).The normal control group was given basic forage , while other three groups were given high fat forage plus intraperitoneal injection of vitamin D 3 and balloon injury of the left common carotid artery to build rat atherosclerosis model combined with syndrome of intermingled phlegm and blood stasis , and then received intragastric administration of saline , atorvastatin suspension and Danlou tablets suspension for 4 weeks, respectively.After intervention, both serum lipid and hs-CRP, IL-6, TNF-α, and LP-PLA2 levels were determined by ELISA , pathological alterations in the thoracic aorta was analyzed using HE staining , the expressions of IL-6, TNF-αand LP-PLA2 mRNA in the thoracic aorta tissue were assessed by real-time fluorescent quantitativePCRtechnology.Results ①Comparedwiththenormalcontrolgroup,thereweresignificantincreasesin serum TC, LDL-C, hs-CRP, IL-6, TNF-α, and LP-PLA2 levels (P<0.05 for all) and decrease of serum HDL-C levels in the model group (P<0.05).The expressions of IL-6, TNF-α, and LP-PLA2 mRNA in the rat aorta were significantly increased ( P<0.05 for all ) .In the model control group , HE staining showed altered arrangement of aortic endothelial cells, irregular intimal thickening , broadened subendothelial space , and accumulation of foam cells and lipid deposition , forming typical atherosclerotic plaques .② Compared with the model control group , the ATV and DLP groups showed significantly decreased serum TC , LDL-C, hs-CRP, IL-6, TNF-α, and LP-PLA2 levels ( P<0.05 for all) as well as the expressions of IL-6, TNF-α, and LP-PLA2 mRNA in the thoracic aorta (P<0.05 for all).There were no significant differences between the ATV and DLP groups (P>0.05).There were also reduced aortic intimal hyperplasia , macrophage infiltration and plaque area compared with those of the model group .Conclusions Rat model of atherosclerosis combined with syndrome of intermingled phlegm and blood stasis can be established by high fat diet feeding combined with the intraperitoneal injection of vitamin D 3 and balloon injury of carotid artery .The prescription ( Danlou tablet ) can inhibit the inflammatory reaction and ameliorate atherosclerotic changes in the rat models .
8.Feasibility of bone marrow stromal cells autologous transplantation for dilated cardiomyopathy.
Cheng, ZHOU ; Chenyuan, YANG ; Shiliang, XIAO ; Hongwen, FEI
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(1):75-8
The feasibility of bone marrow stromal cells autologous transplantation for rabbit model of dilated cardiomyopathy induced by adriamycin was studied. Twenty rabbits received 2 mg/kg of adriamycin intravenously once a week for 8 weeks (total dose, 16 mg/kg) to induce the cardiomyopathy model with the monitoring of cardiac function by transthoracic echocardiography. Marrow stromal cells were isolated from cell-transplanted group rabbits and were culture-expanded on the 8th week. On the 10th week, cells were labeled with 4,6-diamidino-2-phenylindole (DAPI), and then injected into the myocardium of the same rabbits. The results showed that viable cells labeled with DAPI could be identified in myocardium at 2nd week after transplantation. Histological findings showed the injury of the myocardium around the injection site was relieved with less apoptosis and more expression of bcl-2. The echocardiography found the improvement of local tissue movement from (2.12+/-0.51) cm/s to (3.81+/-0.47) cm/s (P<0.05) around the inject site, but no improvement of heart function as whole. It was concluded bone marrow stromal cells transplantation for dilated cardiomyopathy was feasibe. The management of cells in vitro, the quantity and the pattern of the cells transplantation and the action mechanism still need further research.
9.Preliminary study of insulin-like growth factor-Ⅰgene therapy for diabetic rats
Yu DUAN ; Hongwen ZHOU ; Chengya WANG ; Jiawei CHEN
Chinese Journal of Endocrinology and Metabolism 2001;0(05):-
Insulin like growth factor-Ⅰ (IGF-Ⅰ) gene was transferred to diabetic rats with intramuscle gene therapy pathway. It was showed that IGF-Ⅰ gene could express in the body and the blood glucose level was significantly decreased with increasing of serum IGF-Ⅰ.
10.Impact of continuous veno-venous hemofiltration on endoplasmic reticulum stress and apoptosis of HUVEC cells induced by serum of patients with multiple organ dysfunction syndrome
Hongwen ZHOU ; Hua GAN ; Xiaogang DU ; Zhengrong LI
Journal of Third Military Medical University 2003;0(08):-
Objective To investigate the effect and implying mechanism of continuous veno-venous hemofiltration(CVVH) on endoplasmic reticulum stress(ERS) and apoptosis of HUVEC cells which induced by serum of patients with multiple organ dysfunction syndrome(MODS).Methods Ten patients with MODS who received CVVH and 10 healthy volunteers were involved in this study.This experiment was divided into 4 groups: healthy control,group of pre-CVVH,group of 6-hour-CVVH and group of 20-hour-CVVH.Serum of healthy volunteers and the sera of patients with MODS at pre-CVVH,6-hour-CVVH and 20-hour-CVVH were used to induced HUVEC cells respectively in vitro for 24 h.The cell apoptosis was examined by TUNEL assay,the intracellular GRP78 protein was observed by immunocytochemistry,and the mRNA expressions of GRP78,CHOP,TNF-?,and IL-6 in the cells were measured by RT-PCR.The levels of serum SOD and MDA were detected by colorimetric method,and those of of TNF-? and IL-6 of by ELISA.Results Compared with healthy control,the group of pre-CVVH showed higher cellular apoptosis rate(P