1.Research on the Influences of the Implementing Essential Medicine System on Compensation Mechanism of Primary Medical Institutions:analysis on system dynamics
Lülin ZHOU ; Feng JIN ; Changchun ZHAN
Chinese Health Economics 2013;(10):21-23
Objective: To analyze the influences of implementing essential medicine system on primary medical institutions and give suggestions. Methods: Using system dynamics method to construct the compensation mechanism model for primary medical institutions. Compare the growth in revenue and expenditure of primary medical institutions before and after essential medicine system implementation. Results: After the implement of essential medicine system, the growth in total expenditure and total income of primary medical institutions is steadier; when the annual growth rate of government financial subsidies invested more than 13%, the growth in total receipts will keep balance. Conclusion: It’s better to guarantee the government financial subsidies invested in time, raise medical service price properly and establish comprehensive compensation mechanism for implementing compensation mechanism of primary medical institutions.
4.A case of prune belly syndrome.
Zhan-kui LI ; Jin-xing FENG ; Zheng-qi CHEN ; Erdi XU ; Chun-yan ZHAO
Chinese Journal of Pediatrics 2004;42(10):798-798
5.Treatment of portal vein tumor thrombosis in patients with hepatocellular carcinoma by TACE
Zheng-Long TAO ; Yu-Feng JI ; Hong-Xian JIN ; Ying-Jiang ZHAN ; Yong-De CHEN ;
Journal of Interventional Radiology 2006;0(11):-
Objective To evaluate the theraputic effect of transcatheter arterial chemoembolization (TACE)for hepatocellular carcinoma with tumor thrombosis of portal vein.Methods One hundred and six patients of hepatocellular carcinoma with tumor thrombosis of portal vein under treament of TACE were observed before and after the procedure.Results After TACE tumor size reduced>50% in 23 patients,<50% in 25, no significant change in 44.The size of tumor enlarged in 12.The disappearance of portal vein tumor thrombosis accessed in 14,with reduction in 39,and no significant change in 51.Two patients died within one week.Conclusion TACE provides good therapeutic effect on hepatocellular carcinoma with tumor thrombosis of portal vein.
6.The inhibitory effects of avastin on retinal angiogenesis in mice models after intravitreal injection
Yu-Dong, FU ; Zhan-Yu, ZHOU ; Jin-E, WAN ; Hui, FENG ; Song-Tao, LI
Chinese Journal of Experimental Ophthalmology 2011;29(11):988-992
Background Retinopathy of prematurity is mainly due to retinal neovascularization.Objective This laboratory work was to evaluate the efficacy of different dosage of avastin for inhibiting retinal neovascularization.Methods Ninety 7-day-old clean C57BL/J6 mice were randomized into six groups as follows:air control group,hyperxia control group,hyperxia BSS group and avastin groups.C57BL/J6 mice in air control group were raised in regular air environments.The fifty mice were fed under the environment with 75% ±2% oxygen for 5 days to establish the retinal neovascularization models.The 1.25,2.50 and 5.00 g/L avastin (0.5 μl) were injected inteavtreally in forty-five mice models as low,moderate and high dosage avastin groups respectively,and 0.5 μl BSS was used at the same way in fifteen models as hyperxia BSS group.The mice were sacrificed in the 17-day-old age using excessive anesthesia method and the retina sections were prepared for the calculation of the numbers of vascular endothelial cell nuclei broken retinal inner membrane after hemotoxylin and eosin staining.The expression of CD34 in the retina was detected by immunochemistry.The morphology and distribution of retinal neovascular vessel in various groups were observed using retinal flat.The use of the animals followed the Regulations for the Administration of Affairs Concerning Experimental Animals by State Science and Technology Commission.Results The numbers of cell nuclei broken the inner limiting membrane was significant increased in the hyperxia group compared with the air control group( P<0.01 ),and those in difference doses of avastin were considerably reduced in comparison with hyperxia BSS group (P<0.01) and hyperxia group (P<0.01 ).The decrease of numbers of cell nuclei broken the inner limiting membrane was obvious in low dose of high dose of avastin compared with low dose of avastin (P<0.05 ).CD34 was positively expressed in retina internal membrane of hyperxia group.Retinal flat revealed the regular distribution and normal structure of retinal vessels in air control group and avastin groups.However,retinal and vitreous cavity neovascularization,leakage and enlarged non-perfusion regions in the perimeter of the retina were seen in hyperxia group and hyperxia BSS group. Conclusions Intravitreal injection of avastin can arrest retinal angiogenesis in oxygen-induced retinal neovascularization models in a dose-dependent manner.
7.Study on anti-oxidative effect of extracts from Cichorium endivia on HepG2 cells and its mechanism.
Chao-Jie CHEN ; Li-Juan ZHAN ; Jin-Feng WEI ; Hong-Tao JIN ; Hai-Lin QIN ; Ai-Ping WANG
China Journal of Chinese Materia Medica 2014;39(14):2716-2720
OBJECTIVETo investigate the protective effect of extracts from Cichorium endivia (CEE) in H2O2-induced HepG2 cell oxidative stress injury, and explore the antioxidant mechanism of CEE in HepG2 cells.
METHODThe viability of H2O2-induced HepG2 cells and the intracellular ROS level were measured by MTT assay and DCFH-DA fluorescence staining assay. The antioxidant-response element (ARE)-Luciferase activity was tested in HepG2 cells stably transected by ARE reporter gene. The fluorescence quantitative RT-PCR was adopted to determine the mRNA expressions of genes containing ARE sequence in HepG2 cells.
RESULTThe cell viability reduced, while the ROS level increased after HepG2 cells were treated by H2O2. Different concentrations of CEE could be added to significantly improve the above results. After HepG2 cells transected by ARE reporter gene were treated with different concentrations of CEE, the intracellular ARE activity could increase in a concentration-dependent manner. In addition, the mRNA expressions of regulatory genesGCLC, GCLM and HMOX-1 containing ARE sequence in HepG2 cells were up-regulated in a concentration-dependent manner by CEE.
CONCLUSIONCEE inhibited the H2O2-injured HepG2 cells by reducing the ROS level. CEE's antioxidant mechanism for HepG2 cells may be closely related to the antioxidant defense system associated with its effect of activating Nrf2-ARE pathway in HepG2 cells.
Antioxidants ; isolation & purification ; pharmacology ; Asteraceae ; chemistry ; Cell Survival ; drug effects ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Hep G2 Cells ; Humans ; Hydrogen Peroxide ; pharmacology ; Reactive Oxygen Species ; metabolism ; Response Elements ; genetics
8.Analysis on bioactivity of HIV-1 integrase by ELISA method.
Wei-Hong FENG ; Jian-Song HUANG ; Jin-Biao ZHAN
Journal of Zhejiang University. Medical sciences 2007;36(2):179-184
OBJECTIVETo develop an ELISA-based method for analyzing biologic activities of HIV-1 integrase and for high throughput screening of integrase inhibitors.
METHODSAfter expression, renaturation and purification of integrase, the bioactivity of integrase and the inhibition of luffin-a were evaluated with an in vitro assay based on biotin-avidin EILSA and chemiluminescent substrates.
RESULT(1) The specific activity of the purified integrase was 54.92 units/mg of protein. (2)IC(50) (concentration causing 50% inhibition of integrase) of luffin-a was (0.63 +/- 0.026) micromol/L.
CONCLUSIONThe non-radioactive assay can be used for analysis of bioactivities and high throughput screening of inhibitors of HIV-1 integrase.
Catalysis ; drug effects ; Dose-Response Relationship, Drug ; Enzyme Inhibitors ; pharmacology ; Enzyme-Linked Immunosorbent Assay ; methods ; HIV Integrase ; chemistry ; metabolism ; Humans ; Kinetics ; Luminescent Measurements ; Ribosome Inactivating Proteins, Type 1 ; pharmacology ; Substrate Specificity
9.Efficacy and prognosis of peritoneal dialysis in patients with end-stage polycystic kidney disease
Zhoubing ZHAN ; Huaying SHEN ; Kai SONG ; Linsen JIANG ; Sheng FENG ; Zhi WANG ; Donghua JIN ; Ying ZENG ; Beifen QIU ; Xiaosong SHI
Chinese Journal of Nephrology 2017;33(3):191-197
Objective To analyze the therapeutic effect and prognosis of peritoneal dialysis in patients with end-stage polycystic kidney disease.Methods A retrospective analysis was performed on patients with polycystic kidney disease who were treated with peritoneal dialysis for more than 3 months between July 2007 and September 2016 in the Second Hospital Affiliated to Soochow University.A total of 45 patients were enrolled in this study.Another 45 patients of non-diabetic nephropathy were selected as the control group matched by gender,age,and time of PD initiation.The information of the two groups such as general data,dialysis related complications,incidence of peritonitis,prognosis was recorded.Survival analysis was performed using the Kaplan-Meier method and Log-rank test.The risk factors affecting patients' survival were analyzed with Cox regression model.Results There were no significant difference in pre-dialysis age,sex ratio,blood pressure,urine volume,body weight,eGFR,biochemical data,and the proportion of hypertension and diabetes mellitus in the polycystic kidney group and control group.24 h ultra-filtration volume,4 h D/Pcr,Kt/V and Ccr between the two groups showed no significant difference (all P > 0.05).The incidence of peritonitis and the time of the first peritonitis in the two groups respectively as one episode per 82.4 months vs one episode per 81.5 months,(35.8±22.8) months vs (34.5±20.9) months had no statistical difference.The ratio of hernia (6.6% vs 2.2%),thoracic and abdominal leakage (4.4% vs 2.2%),dialysate leakage (0 vs 0),catheter dysfunction (4.4% vs 6.6%),exit-site infections (11.1% vs 6.6%),tunnel infections (4.4% vs 2.2%) and non PD related infections (11.1% vs 13.3%) had no significant difference.The 1-year,3-year,5-year patient survival of two groups respectively were 95.2% vs 93.3%,78.9% vs 75.0%,67.6% vs 64.9% (P=0.475),and 5-year technique survival was 78.7% vs 76.7% (P=0.623),demonstrating no obvious difference.Cox regression analysis showed that age and serum albumin were risk factors for the survival of patients.Conclusions The effect and prognosis of peritoneal dialysis in patients with polyeystic kidney and non polyeystic kidney were similar.Peritoneal dialysis is not the contraindication of polycystic kidney.Peritoneal dialysis can be used as a routine renal replacement therapy in patients with polycystic kidney disease.
10.Radioactive stents for advanced extra-hepatic cholangio-carcinoma
Yan GUO ; Yan LIU ; Zheng LU ; Dong WANG ; Duowu ZOU ; Feng LIU ; Zhendong JIN ; Shude LI ; Xianbao ZHAN ; Zhaoshen LI
Chinese Journal of Digestive Endoscopy 2012;29(7):380-384
Objective To investigate the safety and efficiency of 125I radioactive stents for advanced extra-hepatic cholangio-carcinoma.Methods We retrospectively reviewed data of 15 consecutive patients with advanced and un-resectable extra-hepatic cholangiocarcinoma,who were treated by radioactive stents.Postoperative complications,patency time of stents,and survival of the patients were assessed.Results Fifteen patients underwent 32 endoscopic sessions of radioactive stents placement.Successful operations were achieved in all patients,and there were no life-threatening complications including perforation,bleeding or bone marrow depression.The average patency time of radioactive stents was 117 ± 105 days (8-295 days).The actual radiation dose was 56.55 ± 17.42 Gy (7.86-82.48 Gy).The median survival time was 420 days (90-1175 days) and survival of 6 patients exceeded 12 months.Conclusion The 125I radioactive stent is safe and effective for patients with advanced unresectable extra-hepatic cholangio-carcinoma.