1.Clinical analysis of Takayasu disease with heart valvular involvement
Fei SUN ; Huimin MEI ; Xinping TIAN
Chinese Journal of Rheumatology 2016;20(3):154-159
Objective To estimate the frequency of heart valvular involvement in Chinese patients with Takayasu arteritis (TAK) and its correlation with other clinical features. Methods Ninety-one patients with TAK were studied and their clinical manifestations, laboratory test, vascular images and echocardio - gra-phic findings were retrospectively reviewed. The data were compared between patients who had heart valvular involvement and those who had not. Mann-Whitney U-test or Student's t-test, Chi-squared test or Fisher's exact test were used for analysis. Results Aortic regurgitation and mitral regurgitation were both confirmed in 20 (22%) patients. Tricuspid regurgitation and pulmonary valve regurgitation were observed in 10 (11%) and 2 (2%) patients, respectively. Older age at onset, longer disease duration, hypertension and involvement of the ascending aorta were all significantly more frequent in TAK patients with aortic regurgitation (t=2.903, P<0.01; Z=-2.759, P<0.01; χ2=7.918, P<0.01; Z=-4.454, P<0.01) than those without. However, the constitutional symptoms and acute phase reactants [erythrocyte sedimentation rate (ESR) and C reactive protein (CRP)] were not statistically different between patients with and without valvular regurgitation (P>0.05). Aortic valvular pathology examination of the three TAK patients who had underwent aortic valve replacement showed no inflammatory cell infiltration. Conclusion This study has demonstrated that heart valve involvement is common in patients with TAK, mainly in the form of regurgitation, and which may be secondary to hypertension and other cardiovascular complications. We should pay more attention to the screening and treatment of heart valvular involvement in TAK patients.
2.Effects of a novel PPARγ agonist on Wnt-β-catenin pathway in ADPKD cystic-lining epithelial cells
Lili FU ; Moyan LIU ; Chunyan LIU ; Huimin HU ; Changlin MEI
Chinese Journal of Nephrology 2012;28(6):464-468
Objective To investigate the effects of a novel PPARγ agonist DH9 on Wntβ-catenin pathway in human polycystic kidney cystic-lining epithelial cells (WT9-12).Methods WT9-12 cells were treated with different concentrations of DH9 for 72 hours and the proliferation was assessed by MTT.WT9-12 cells were pretreated with SB216763 or GW9662 for two hours and then treated with DH9 for 72 hours.Western blotting was applied to detect the protein expression of β-catenin,phospho-β-catenin,GSK3β,phospho-GSK3β.Results DH9 could effectively inhibit the proliferation of the cells.60 μmol/L DH9 could facilitate β-catenin down-regulation (P<0.01) and phospho-β-catenin up-regulation (P<0.01).Inhibition of GSK3β by SB216763 could protect WT9-12 cells against DH9-facilitated β-catenin repression in a dose-dependent manner despite phosphorylating deactivation,but PPARγ inhibitor GW9662 couldn't.Conclusions DH9can effectively block the proliferation of WT9-12 cells.The effect may be mediated by facilitating the down-regulation of β-catenin via GSK3β-dependent mechanism.
3.Impact of heparanase on glomerular endothelium glycocalyx during sepsis
Zengbo LIU ; Changlin MEI ; Huimin HU ; Xueqi WANG ; Lili FU
Chinese Journal of Nephrology 2014;30(7):524-529
Objective To observe the impact of heparanase on glomerular endothelium glycocalyx during sepsis and to investigate the prevention of glycocalyx injury.Methods C57/BL6 mice were injected with lipopolysaccharide (LPS) or tumor necrosis factor-α(TNF-o) and sacrificed one hour later.Glomerular endothelium glycocalyx traced with lanthanum was observed by transmission electron microscope(TEM).Western blotting was used to observe heparanse protein expression of renal cortex tissue.Human renal glomerular endothelial cells (HRGECs) were stimulated with TNF-α and active heparanase protien expression was detected by Western blotting.Mice were administrated with heparin sodium or heparinase Ⅲ and renal endothelium glycocalyx was observed by TEM.Urine during twenty-four hours was collected to measure urinary albumin and creatinine.The ratio of albumin to creatinine was calculated and compared among groups.Results The glomerular endothelium glycocalyx of LPS group and TNF-α group was degradated and the one of podocyte was integrated.Renal cortex tissue heparanase protein expression was significantly increased since one hour after LPS injection (P < 0.01).The protein expression of activited heparanase of HRGECs which were stimulated with TNF-α was increased (P < 0.05).Administration of heparin sodium which could inhibit the activity of heparanase could prevent the glycocalyx form degradation.The ratio of urine albumin to creatinine of heparin sodium group was decreased compared with LPS group (P < 0.05) and the ratio of heparinase Ⅲ group was higher than control group(P < 0.01) as a result of degradation of glomerular endothelium glycocalyx.Conclusions During the early stage of sepsis,TNF-α can induce glomerular endothelium heparanase to increase and active,and consequently the glycocalyx is degradated which leads to albuminuria.Inhibition of heparanase can protect glomerular endothelium glycocalyx and prevent albuminuria.
4.Effect of rosiglitazone on p38 mitogen-activated protein kinase pathway in polycystic kidney cyst-lining epithelial cells
Jieshuang JIA ; Changlin MEI ; Lili FU ; Bing DAI ; Huimin HU
Chinese Journal of Nephrology 2009;25(6):452-457
Objective To investigate the effect of rosiglitazone on p38 mitogen-activated protein kinase (p38MAPK) pathway in polycystic kidney cyst-lining epithelial cells. Methods The cyst-lining epithelial cells (PKD cells) from human polycystic kidney were treated with rosiglitazone (10 μmol/L), peroxisome proliferator-activated receptor-γ (PPARγ) inhibitor GW9662 (10 μmol/L), rosiglitazone (10 μmol/L) +GW9662 (10 μmol/L), p38MAPK specific inhibitor SB203580 (10 μmol/L), SB203580 (10 μmol/L)+ rosiglitazone(10 μmol/L) for 2 hours followed by epidermal growth factor (EGF) stimulation. Protein expressions of p38, phuspho-p38 (p-p38) and proliferating cell nuclear antigen (PCNA) were detected by Western blot. p38 mRNA was examined by RT-PCR. Expression of c-fos and c-jun was observed by immunocytochemistry. Results (1) EGF markedly up-regulated the expressions of p38, p-p38, PCNA, c-fos anti c-jun compared with control group (P<0.01). (2) Compared with EGF treated group, rosiglitazone significantly reduced p38 activation and mRNA expression (P<0.01, respectively). Rosiglitazone, rosiglitazone+SB203580 could significantly down-regulated p-p38, PCNA, c-fos and c-jun expression (P<0.01, respectively) with no significant difference between these two groups. (3) GW9662 partially reversed the reduction effect of rosiglitazone. Conclusions Rosiglitazone can inhibit proliferation of autosomal dominant polycystic kidney disease cyst-lining epithelial cells partially through down-regulating p38 activation and reducing c-fos, c-jun and PCNA expression. The above effect of rosiglitazone is in part PPARγ-independcnt.
5.The applications of push service on the health care management of the floating population pregnant women
Huimin SUN ; Mei ZHANG ; Jinling WANG ; Shuyang WU
Journal of Medical Postgraduates 2014;(11):1205-1207
In current health care management of floating population pregnant women, health care utilization rate does not reach the ideal level.Push service has been used as a key business in development and utilization of information resources for knowledge service institution, with initiative, customized, personalized, intelligent, dynamic and integrated characteristics.On the basis of analysis of cur-rent situation about the health care management of floating population pregnant women, the paper discussed the applications of push serv-ice.New thinking of application of push service to the health care management is put forward, The right aged women can be early linked through integrated mobile phone SMS, micro message interaction, email, channel type push and other means, and broad cover and whole course service management can be achieved, leading to the enhanced care utilization rate of floating population pregnant women.
6.Role of Hippo pathway in autosomal dominant polycystic kidney disease
Liangliang HE ; Wenjuan HU ; Changlin MEI ; Huimin HU ; Lili FU
Chinese Journal of Nephrology 2015;31(3):227-232
Objective To explore the role of Hippo pathway in the pathogenesis of autosomal dominant polycystic kidney disease (ADPKD),and find potential targets for drug therapy.Methods By means of immunofluorescence staining,Western blotting,Real-time PCR,the differences of sublocalization,expression and phosphorylation level about Hippo pathway molecules in Han:SPRD (cy/+) and ADPKD patients compared with the control were observed.Knockdown Yes kinaseassociated protein (YAP),transcriptional coactivator with PDZ binding motif (TAZ) and large tumor suppressor kinase1 (LATS1) in cystic lining epithelium cell line WT9-12 were took by siRNA interference,and then their effects on cell proliferation,apoptosis and cell cycle were assessed.Results In cystic lining epithelium of Han:SPRD(cy/+),decreased expression of LATS1 and increased expression of YAP were found compared with the control,and the immunofluorescence of YAP was distributed both in cytoplasm and nucleus,while distribution and expression level of TAZ were without significant variance.Abnormal mRNA expressions of Hippo pathway components in ADPKD patients were found (P < 0.05).Down-regulation of LATS1 in WT9-12 cells could prohibit phosphorylation of YAP,and prompted proliferation and cell division.Knockdown YAP in WT9-12 cells could inhibited cell proliferation by arresting cell cycle in G0/G1 phase,but down-regulating TAZ showed no significant differences in proliferation and cell cycle.Conclusions Altered Hippo signaling exists in ADPKD,and YAP activation may be one leading cause of autosomal dominant polycystic kidney disease onset.In vitro,knockdown YAP in WT9-12 cells can inhibit cell proliferation by arresting cell cycle and depressing cell division,suggesting the expression level and activity of YAP are potential targets for ADPKD treatment.
7.Relationship between acid pocket and acid reflux in gastroesophageal reflux disease
Dongying YAO ; Yedong HU ; Huimin XI ; Mei SUN ; Fei LIU
Chinese Journal of Digestion 2014;34(4):244-246
Objective To explore the relationship between acid pocket and acid reflux in gastroesophageal reflux disease (GERD).Methods From March 2011 to January 2012,29 patients with GERD were enrolled and nine healthy individuals were set as control.All objects of this study accepted esophageal manometry test,acid pocket test,test of the occurrence time of acid pocket and ambulatory 24 hours pH monitoring.The t-test was performed for comparison between two groups.The relationship between the incidence of GERD and acid pocket was analyzed by Logistic regression analysis.Pearson correlation analysis was used for correlation analysis.Results The percentage of acid pocket in GERD group and control group was 58.6% (17/29) and 5/9,respectively,and the difference was not statistically significantly (P>0.05).The duration time of acid pocket was (56.3±44.7) minutes in GERD group which was longer than that of control group ((16.0±8.2) minutes) and the difference was statistically significant (t=1.970,P<0.01).There was no statistical significance in the average pH value of acid pocket between GERD group with acid pocket (2.8 ± 1.3) and that of control group with acid pocket (1.9±0.5,P>0.05).The duration time of acid pocket was correlated with the longest reflux time in GERD group with acid pocket (r=0.550,P<0.01).The peak velocity of esophageal motility in GERD group ((3.3±0.6) cm/s) was lower than that of control group ((5.0±4.1) cm/s) and the difference was statistically significant (t=-1.354,P<0.05).The peak velocity of esophageal motility in GERD group with acid pocket ((3.2±0.6) cm/s) was lower than that of control group with acid pocket ((7.2± 6.3) cm/s) and the difference was statistically significant (t=-2.693,P<0.05).Conclusions The duration time of acid pocket in GERD is correlated with the time of acid reflux.Esophageal dysmotility may be related with the pathogenesis of GERD and the occurrence of acid pocket.
8.A survey of statistical methods used in nursing papers for bachelor's degree
Huimin ZHANG ; Lulu YAN ; Fangzhou HU ; Yingmin WANG ; Biqi MEI
Modern Clinical Nursing 2017;16(5):59-61
Objective To investigate the statistical methods used in nursing papers for bachelor's degree. Method We collected 160 nursing theses for bachelor's degree in 2016 in our college and analyze the statistical methods. Results A total of 80 papers used statistical methods consisting of statistical table, statistical inference, single factor analysis, variance analysis and statistical description. Among them, the statistical methods in 66 papers (82.5%) were misused. About 139 misuses of statistical tables was found in papers, and about 23 misuses of statistical inference in papers, taking up 45.4%. Conclusions The nursing undergraduates are familiar with the application of statistical methods, but the methods tend to be simple and unitary. Therefore, it is a need to enhance their practice in using statistical methods.
9.The research of Integrative medicine to improve elderly patients with bowel dysfunction after cardiopulmonary bypass
Zhiguo ZHANG ; Xuan HONG ; Mei SUN ; Liang YE ; Tieyan LI ; Huimin FAN ; Zhongmin LIU
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;28(6):365-367
Objective To study the effects of improving elderly patients with bowel dysfunction after cardiopulmonary bypass.Methods Choose 54 elderly patients with CPB were randomly divided into tree groups:the control group and the Gln group and the Combination group,every group has 18 patients.Glutamine(Gln) at 0.4 g/kg was administrated to the patients in the Gln group and the combination group during the beginning at CPB and two days after the operation.Based on the Gln group,the patients of The Combination group were given the different oral Chinese medicine before and after operation,according to syndrome differentiation classification.Plasma endotoxin,IL-6 and DAO were measured before operation and at the endof operation and 24 h,48 h after operation.At the same time,we used German Siemens Company's X3000 Color Doppler machine to test every group of patients superior mesenteric artery.We tested before surgery,and one to two days after operation,from the starting point within 2cmof the superior mesenteric artery and the angle between the ultrasound beam flow was less than 60 °,the probe frequency was 3.5 MHz.The detection of hemodynamic indexes were EDV and PI.Results After the test,the plasma endotoxin and IL-6 levels and DAO levels of the Gln group were reduced than the Control group after cardiopulmonary bypass.The plasma endotoxin and IL-6 levels and DAO levels of the Combined gnup were decreased than the Gln group after cardiopulmonary bypass and one day after operation.Analyze superior mesenteric artery diastolic velocity (EDV)and pulsatility index (PI) by the Color Doppler.After operation,the EDV in the Gln group and the Combined grup were significantly higher than the control group,the Pl were lower than the control group.The parameters levels have significant difference after cardiopulmonary bypass and one day after operation(P < 0.05 ).The Combined group was improved than the Gln group after cardiopulmonary bypass and one day after operation.According to the traditional Chinese medicine diagnosis,there were eighteen patients in the Combined group,including fifteen patients in type of deficiency of both qi and yin and three patients in type of fu-viscera syndnome.All of the patients have defecated within tree days after operation.In the type of deficiency of both qi and yin nine patients were cured and six were shown to be effective after operation.All the patients in type of fuviscera syndrome were cured.Conclusion N(2)-L-Alanyle-L-Glutmaine have protective effect on the intestinal mucosal barrier after CPB.Combined traditional Chinese Medicine preparation was more conducive to the intestinal function recovery of elderly patients after cartiopulmonary bypass.
10.Effects of trimetazidine on myocardial energy metabolism and ultrastructure in chronic renal failure rats
Qi TANG ; Changlin MEI ; Liming ZHANG ; Yizhou LU ; Bibo WU ; Jianguo LIU ; Dingfeng SU ; Huimin HU
Chinese Journal of Nephrology 2011;27(8):585-590
Objective To determine the effects of trimetazidine (TMZ) on pathology and energy metabolism of myocardium in chronic renal failure(CRF) rats.Methods CRF models were built in Sprague-Dawley (SD) rats with 5/6 subtotal nephrectomy, and animals were randomyly divided into sham group, control group and three groups treated with different doses of TMZ (3 mg/kg,6 mg/kg or 9 mg/kg).TMZ was intragastrically administrated to CRF rats for 17 weeks, while physiologicalsalinewasusedascontrol. Transthoracicechocardiographywasperformedand myocardial morphosis was observed.Left ventricular weight/body weight(LVW/BW) and heart weight/body weight (HW/BW) were measured, and heart rate, and mean arterial pressure (MAP)were detected at the end of the study, while several parameters were detected, including urea nitrogen (BUN), creatinine(Scr), triphosaden(ATP), adenosine diphosphate(ADP), superoxide dismutase (SOD), malondialdehyde (MDA), interleukin 6 (IL-6) and tumor necrosis factor α (TNF-α).Results (l)Left ventricle end-systolic dimensions, anterior wall end-diastolic and end-systolic thicknesses, and posterior wall end-diastolic thickness were significantly lower in rats treated with either medium dose or high dose of TMZ, as compared with control group(P<0.05).(2)LVW/BW and HW/BW in rats treated with either medium dose or high dose of TMZ were significantly lower than those in control group(P<0.05). (3)Various pathological changes were observed in control group, such as irregular arrangement and hypertrophy of the cardiomyocytes, myocardial fibrosis,mitochondrial swelling, focal muscle fiber dissolution, etc.However, all these pathological changes were apparently ameliorated in TMZ-treated groups, while the beneficial effects of TMZ therapy were dose-dependent. (4)No difference was observed in heart rate among all the groups.Although no difference existed in all the CRF rats, concerning on the systolic/diastolic blood pressure and mean arterial pressure (P>0.05), these parameters were elevated in CRF rats, as compared with sham-operated group(P<0.01). (5)ATP and ADP in TMZ-treated rats were significantly higher as compared with control(P<0.05), moreover, medium dose and high dose of TMZ were superior to low dose (P<0.05).(6)SOD was significantly increased in TMZ-treated rats (P<0.05), while IL-6,TNF-α and MDA were significantly decreased in medium dose and high dose of TMZ, as compared with control(P<0.05).Conclusion TMZ may prevent myocardial fibrosis and left ventricular hypertrophy in chronic renal failure via ameliorating myocardial energy metabolism and alleviating inflammatory reaction and oxidative stress.