1.Effects of Yiqi Yangyin Huoxue Principle on the Expression of Neurotrophin-3 of the Frontal Lobe Cortex Neurons in Diabetic Rat Brain
Weiyan CHEN ; Yueming ZHANG ; Gangfeng GE
Journal of Zhejiang Chinese Medical University 2006;0(05):-
ObjectiveTo explore the effects of Yiqi Yangyin Huoxue principle on the expression of neurotrophin-3 of the frontal lobe cortex neurons in diabetic rat brain. Methods The diabetic rat model was produced by intraperitoneal injection of streptozotocin(STZ).The Yiqi Yangyin Huoxue drugs was poured into the stomach of the treated group. The brains were taken and the expression of neurotrophin-3 was estimated with immunochemistry 8 weeks later. Results Immunochemistry showed that there were many positive cells in the frontal lobe cortex of the normal group and they were deeply dyed.Positive cells of the model group decreased and their color was shallow .The number and the color of positive cells in the treated group were close to that of the normal group. Conclusion The Yiqi Yangyin Huoxue principle can effectively improve the degenerating of the frontal lobe cortex neurons in diabetic rat brain.
2.Inhibition of visceral hypersensitivity in rats by decreased expression of Nav1.8
Yalei WANG ; Weiyan YAO ; Yongping ZHANG
Chinese Journal of Digestion 2001;0(02):-
Objective To investigate the effect of inhibiting the expression of Navl. 8 sodium channels by an antisense oligodeoxynudeotide(ODN) on visceral hypersensitivity. Methods The visceral hypersensitivity animal models induced by giving neonatal Sprague-Dawley rats colorectal distention(CRD) after postnatal days 8, 10 and 12. Animals were injected intrathecally either Navl. 8 antisense ODN (research group) or mismatch ODN (control group) twice a day for 3 days at the 8th week. After that, the expression of Navl. 8 in each group was examined by RT-PCR, and abdomiral withdrawal reflex(AWR) score and spinal c-Fos expression were evaluated to assess whether the intervention can relieve the visceral hypersensitivity. Results After intrathecal injection with the antisense ODN, the expression of Navl. 8 in each group decreased.AWR score and the number of c-Fos positive neurons in the spinal cord, especially in the area 1 and 3, decreased in the model group, while they did not change in the control group. Conclusions Interventing the expression of Nav1.8 may relieve the visceral hypersensitivity in this model of irritable bowel syndrome.
3.Analysis of substitutional effect of outpatient expenditure on inpatient expenditure in hypertensive patients with rural new cooperative medical scheme
Huyang ZHANG ; Weiyan JIAN ; Hai FANG
Journal of Peking University(Health Sciences) 2016;48(3):472-477
Objective:To study direct medical cost of hypertensive patients without complicated disea-ses,to analyze substitution impacts of outpatient expenditure on inpatient expenditure,and then to make recommendations to health policy makers and hypertensive patients for managing hypertension.Methods:The claims data of hypertensive patients insured by the rural new cooperative medical scheme in a city in northern China from 2008 to 201 3 were analyzed,descriptive statistics employed to analyze direct medical cost of hypertensive patients and hypertensive patients without complicated diseases which was one of the three groups divided by medical treatment conditions (hypertension without complicated diseases,hyper-tension with complicated diseases,and other diseases),and the differences between groups compared by t test.The fixed effect two-part model was employed to analyze the substitution effect of outpatient services on inpatient services,and specific effects of outpatient times and reimbursement expenses on the inpatient expenditure were calculated by Logistic regression analysis.Results:For the hypertensive pa-tients,the average cost of outpatients was 283.49 Yuan in 2008 and rose to 370.93 Yuan in 201 3.After being divided into three groups,for hypertensive patients without complicated diseases,the average cost of outpatient was 449.79 Yuan in 2008 and rose to 582.53 Yuan in 201 3.In the total cost of the outpa-tient,45.73% was for the hypertensive patients without complicated diseases;in the total cost of the in-patient,only 9.29% was for the hypertensive patients without complicated diseases.By calculating the marginal effect of parameter estimation through the fixed effect two-part model,the inpatient cost could be significantly reduced by increasing the visit times of outpatient utilization or the cost of outpatient reim-bursement.For example,in 201 3,a 1 % rise of outpatient visit times increased outpatient expenditures by 6.48 million Yuan,which could reduce inpatient expenditures by 39.86 million Yuan.The substitu-ted ratio of outpatient cost on inpatient cost had been around 5 in 201 0 and later.Conclusion:The health policy-makers and hypertensive patients should pay more attentions to the substitution of outpatient cost for inpatient cost,especially for the hypertensive patients without complicated diseases whose direct medical cost was mainly due to outpatient rather than inpatient costs.
4.DRGs-based methodology for medical performance evaluation and case studies
Weiyan JIAN ; Mu HU ; Xiumei ZHANG
Chinese Journal of Hospital Administration 2013;(3):180-185
Authors described characteristics of medical service performance evaluation,and strategy options for scientifically evaluating such performance,and systematically presented the conditions and methodology of DRGs-based evaluation of medical service performance.Six evaluation indicators were cited in terms of the capacity,efficiency and medical safety of medical service providers,with detailed introduction to the computation process of such indicators.Cases in hand indicate that the first-page data completeness and accuracy of medical records are preconditions for using DRGs in medical service performance evaluation.
5.Development and application of diagnosis related groups
Weiyan JIAN ; Mu HU ; Xiumei ZHANG
Chinese Journal of Hospital Administration 2011;27(11):817-820
This article reviewed the connotation,developing process and utilization theory of diagnosis related groups (DRGs).DRGs,which is one of ease mix systems,is now used widely in healthcare management.DRGs classify inpatient based on diagnose and procedure.Practices have shown that it has relative high capacity for the risk adjustment of acute care cases; therefore,it can improve the efficiency of expenditure and performance management of inpatient services.Currently,there are more than 30 countries and regions using DRGs,and the theories and methodologies of DRGs get mature.China's new round healthcare reform have developed in depth.The study and development of DRGs related health management tool will promote China' s healthcare system becoming more scientific,normalized and systematic.
6.Anti-tumor Effects of Total Saponins Extract from the Aerial and Underground Parts ofParispolyphyllavar.yunnanensis
Ju LI ; Rongping ZHANG ; Zhiyong HE ; Shuda YANG ; Weiyan HU
Journal of Kunming Medical University 2016;37(5):46-50
Objective To investigate the anti-tumor effects of total saponins,extracted from stems and leaves ofParispolyphyllavar.yunnanensis. Methods Taking mouse stomach carcinoma MFC cell line,human mammary cancer cell line(MCF-7)and human cervical carcinoma cell line(Hela),and their tumor-bearing mice as models,the antitumor activity was carried out in vitro and in vivo. CCK-8 assay was used to determine the inhibitory effect in vitro. The tumor-bearing mice model was induced by tumor cell vaccination in normal mouse forelimb left axillary subcutaneous and these mice were randomized into NS group,cytoxan group(30 mg/kg),saponins high-dose,medium-dose and low-dose groups(60,30 and 15 mg/kg). They were given intraperitoneal injection once a day for consecutive 15 days. The tumor inhibition rate and survival of the tumor-bearing mice were measured. Results Saponins,extracted from both aboveground and underground ofP.polyphyllavar.yunnanensis could significantly inhibit the growth of MFC,MCF-7 and Hela cells in time- and dose-dependent manners. The tumor weight in each drug treated group was significantly lower than that in the control group. Conclusion Saponins,extracted from both aboveground and underground ofP.polyphyllavar.yunnanensis have antitumor activity.
7.Effects of Prdx4 protein expression on migration and invasion of HeLa cells
Weiyan YUAN ; Li ZHANG ; Hongqin SHI ; Xiaowei GONG ; Yong JIANG
Chinese Journal of Pathophysiology 2016;32(4):637-643
AIM:To investigate the effects of peroxiredoxin 4 ( Prdx4) protein expression levels on the migra-tion and invasion of human cervical cancer HeLa cells.METHODS:The plasmid pcDNA3.0-HA-Prdx4 was transfected into HeLa cells.The HeLa cells were infected with LV-Prdx4 RNAi vector to establish stable Prdx4 shRNA HeLa cells. The change in the expression of Prdx4 protein was validated by Western blotting.The wound-healing assay, and Transwell migration and invasion assays were performed to detect the migration and invasion of HeLa cells, respectively.RESULTS:The expression of Prdx4 protein was up-regulated in the HeLa cells after transfection with pcDNA3.0-HA-Prdx4 plasmid ( P<0.05), whereas it was down-regulated in the Prdx4 shRNA HeLa cells (P<0.05).The abilities of migration and inva-sion were significantly increased in Prdx4-overexpressing HeLa cells compared with non-transfected and mock plasmid trans-fected control groups ( P<0.01) .When Prdx4 was knocked down by shRNA, the migration and invasion of the HeLa cells were remarkably repressed compared with blank control group and negative control group ( P<0.01 ) .CONCLUSION:The up-regulation of Prdx4 expression facilitates the migration and invasion of HeLa cells, and the down-regulation of Prdx4 expression inhibits the migration and invasion of HeLa cells, indicating that Prdx4 may be a potential molecular target for cervical cancer therapy.
8.The value of cardiac troponin-I, B-type natriuretic peptide and blood lactic acid on evaluation of severity and prognosis in patients with septic myocardial dysfunction
Zhenhui ZHANG ; Lili TAO ; Weiyan CHEN ; Zixin JIANG ; Weijiang LIU
The Journal of Practical Medicine 2014;(9):1424-1426
Objective To explore the value of cardiac troponin-I (cTnI), B-type natriuretic peptide (BNP) and blood lactic acid (Lac) on evaluation of severity and prognosis in patients with septic myocardial dysfunction (SMD). Methods According to retrospective analysis of clinical data,161 cases with sepsis were divided in to SMD group and non-SMD group. And the SMD group was further divided in to death group and survival group. Blood cTnI, BNP and Lac value in each group were detected respectively. The ROC curve was used to evaluate the forecast value of cTnI, BNP and Lac on prognosis for patients. Results The value of cTnI, BNP and Lac in SMD group were significantly higher than those in non-SMD group(P<0.05);The value of cTnI, BNP and Lac in death group among the SMD patients were significantly higher than those in survival group(P<0.05);cTnI, BNP and Lac contribute to predict the 28 day mortality rate of SMD. Conclusions Blood cTnI, BNP and Lac contributes to the assessment of the severity and the prognosis of septic patients with myocardial dysfunction.
9.PEDIGREE ANALYSIS OF OTOSCLEROSTIC FAMILIES
Suzhen ZHANG ; Sichang JIANG ; Weiyan YANG ; Yaoyun FANG
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
This paper presented the hereditary pattern of otosclerosis in families. Among 1500 cases there were 13 patients, belonging to 6 families, and 20 ears were surgically treated. There was often a marked similarity in clinical features of affected siblings within the same family.The clinical characteristics are as following: (1) The age at inset of hearing loss seems similar. There is a difference of 1 or 2 years in two families znc 3 to 10 years in the other four. (2) The side of first hearing loss is the same in affected individuals of 6 families. (3) The propositi are females in 5 families (83.3%). (4) Auditory curve of hearing loss is similar in 4 familiers, and different in the other two. (5) The footplate lesions are similar in macroscopic features, thin footplate in two fimalies and thick footplate in the other four.
10.Expression of janus kinase 1/signal transducer and activator of transcription 1 signaling pathway in cerulean stimulated pancreatic acinar cells
Ping CHEN ; Weiyan YAO ; Yongping ZHANG ; Minmin QIAO ; Yaozong YUAN
Chinese Journal of Pancreatology 2010;10(4):272-275
Objective To investigate the relationship between the activity of Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling pathway in cerulein-induced pancreatic acinar cell line AR42J. Methods The in vivo model of AP was induced by cerulean treated pancreatic acinar cell line AR42J, then RPM and AG490 were given for intervention. Western blot was used to determine theexpressions of JAK1 and phosphorylation JAK1 ( P JAK1 ) , STAT1, PSTAT1 and TNFα, IL-1β, IL-6. The expressions of IL-6, IL-1 β, and TNFα mRNA were measured by RT-PCR. Survival rate of cells was evaluated by trypan blue stain. Results The relative expressions of JAK1, P JAK1, STAT1, P STAT1 and TNF-o, IL-1β, IL 6 without cerulean treatment were 0.09 ±0.04,0.14 ±0.08,0.21 ±0.09,0.12 ±0.12,0.10 ±0.02,0.08 ± 0.03,0.02 ± 0.02. After cerulean treatment, the expressions of abovementioned protein increased in a time-dependant manner, the expressions at 24h were 0.53 ± 0.09,0.53 ± 0.13,0.56 ± 0.09,0.55 ± 0.10,0.25 ± 0.04,0.25 ±0.09,0.27 ±0.07, which were significantly higher than those in the control group (P <0.05). 2 4 h after RPM and AG 4 9 0 inhibition, the expressions of TNF-α, IL-1 β, IL-6 proteins significantly decreased to 0.17 ± 0.03and 0.17 ± 0.01,0.15 ± 0.05 and 0.14 ± 0.07,0.19 ± 0.04 and 0.19 ± 0.05; their expressions of mRNA significantly decreased ( P < 0.05 ). The cell survival rates in RPM and AG490 treatment group were (72.4 ± 11.2) %, (69.7 ± 9.8 ) %, and in cerulein-stimulated cells (42.2 ± 12.3 ) % ( P < 0.05 ).Conclusions The JAK1/STAT1 signaling pathway was involved in pancreatic inflammatory response with cerulein stimulation. Early treatment with inhibitors to the JAK1/STAT1 signaling pathway might control the inflammatory response in acute pancreatitis.