1.Protective effect of acanthopanax senticosus saponins on anoxia-damaged motoneurons in rat spinal cord in vitro
Academic Journal of Second Military Medical University 1982;0(02):-
Objective:To investigate whether acanthopanax senticosus saponins(ASS) has a protective effect on anoxia-damaged rat spinal cord motoneurons(SMNs) in vitro and to reveal the possible mechanism of this effects.Methods: SMNs were obtained from the spinal cord of embryonic day 15 rats and were cultured in vitro.The cultured cells were immunohistochemically identified and were subjected to anoxia exposure to establish apoptosis model.In this study,SMNs were divided into the following 4 groups: normal control group;anoxia-induced apoptosis group;ASS pre-treated group,SMNs were treated with ASS(50 ?g/ml) 24 h before anoxia exposure;and glial-cell-line-derived neurotrophic factor(GDNF) pre-treated group,SMNs were treated with GDNF(0.1 ?g/ml) 24 h before anoxia exposure.The morphology of SMNs was observed with phase-contrast microscope and electron microscope;the viability of SMNs was detected with MTT method;and the influence of ASS on the stablility of SMNs membrane was observed through detection of lactate dehydrogenase(LDH) level in the extracellular solution.The influence of ASS on the expression of HIF-1? in anoxia-damaged SMNs was studied by Western blot analysis.Results: The morphological damage of SMNs in ASS and GDNF pre-treated groups was slighter than that in anoxia-induced apoptosis group.The results showed that the viability of SMNs was higher in ASS pre-treated group(0.21?0.028) compared with that in anoxia-induced apoptosis group(0.15?0.012)(P
2.Study on time,spatial and population distribution of intestinal nematode in-fections in Jiangsu Province in recent 30 years
Chinese Journal of Schistosomiasis Control 2014;(3):316-319
Objective To analyze the epidemical distribution of intestinal nematode infections in Jiangsu Province in recent 30 years,so as to provide the evidence for improving prevention and control of intestinal nematodiasis in the future. Methods The literature related to intestinal nematode infections in Jiangsu Province from 1984 to 2012 was searched and the infection data in them were sorted and analyzed. Results A total of 26 papers were obtained. In the recent 30 years,the infection rates of Trich-uris trichiura,Ascaris lumbricoides and hookworm in Jiangsu Province decreased gradually,but the infection levels in northern Ji-angsu were higher than those in central and southern Jiangsu. In northern and central of Jiangsu Province,the descent speed of the intestinal nematode infection levels was faster before 2000,and then it slowed down after 2000. In southern Jiangsu,the descent speed of the infection level of A. lumbricoides was the fastest,but the infection level of T. trichiura with slight fluctuation kept rela-tively steady. From 1984 to 1989,the infection rates of the 3 intestinal nematodes above-mentioned in all age groups were high, and those of T. trichiura and A. lumbricoides were above 20%and 30%,respectively,and the infection rates of hookworm in mid-dle aged and elderly populations were relatively high. From 1990 to 2000,the infection rates of A. lumbricoides in children and teenager as well as that of hookworm in the people aged from 40 to 70 years were high,but those of T. trichiura and A. lumbricoides in the people above 70 years old were low. During the period of 2001 to 2012,the middle aged and elderly population and children were still the high-risk groups of hookworm and A. lumbricoides infections,respectively. Conclusions In the recent 30 years,the infection rates of intestinal nematodes in Jiangsu Province have decreased year by year,but the infection levels in northern Jiangsu are still higher than those in central and southern Jiangsu,which means that the northern Jiangsu is the key area of intestinal nema-todiasis control. Meanwhile,the A. lumbricoides infection rate of children and T. trichiura infection rate of the middle aged and el-derly population are high,which suggests that the control should put emphasis on the key population.
3.Financial Compensation Method, Public Hospital Operation Mechanism and Government Expenditure Estimation:Based on the Data Analysis of County-Level Public Hospitals in G Province
Chinese Health Economics 2014;(7):5-8
To cement the 5 years’ staged achievement of new medical reform so as finally achieve the objective of medical reform, public hospital would become the aim of reform in the following stage. On one hand , canceling “using drug to supple health care” in public hospitals has came into the crucial stage; on the other hand, the government needed to increase financial input and ensure the implementation of security fund. What was the relation between these two reforms? Therefore , based on the survey of county-level public hospitals in G Province, relationship among government compensation method, hospital public profit operation mechanism and profit-driven operation mechanism were analyzed; besides, different financial insurance mode had different operation efficiency. Because the construction of hospital expense under public profit operation mechanism was more reasonable , the required government insurance fund was less, which only accounted 32.9%of the required fund under the profit-driven operation mechanism. Therefore, the policy suggestions that government need to “buy the mechanism” and “be brave to implement ‘subtraction reform’” were proposed.
4.Discuss Effective Supervision of Rational Use Of Medicine
Jianfeng LIN ; Xie CHEN ;
Chinese Medical Ethics 1995;0(03):-
Irrational use of medicine has some reasons subjectively and objectively.Under a system of new framework,the key link of achieving rational medical use is that how to strengthen the effeetive regulation.Construeting a scientific surveillance system.innovating monitoring system,intelligent using of modern management techniques,controlling the entire process of the implementation of medicine,to promotion the rational use of medicineprovides a strong institutional guarantee and technical support.
5.Improvement of HPLC in Concentration Determination of Lamotrigine in Human Serum
Chunmei CHEN ; Jianfeng LAI ; Zhiqiang CHEN
China Pharmacy 2015;(32):4504-4505
OBJECTIVE:To establish a rapid method for the concentration determination of lamotrigine (LTG) in human se-rum. METHODS:HPLC was adopted after serum samples treated with methanol. The column was Hypersil BDS C18(200 mm×4.6 mm,5μm)with the mobile phase of methanol-KH2PO4(45∶55,V/V)at the flow rate of 1 ml/min,the detection wavelength was 250 nm,and the temperature was 35℃. RESULTS:The linear range of LTG was 0.5-30.0 μg/ml(r=0.999 9). The RSDs of intra-day and inter-day were all less than 5% and the recovery was 101.96%-102.74%. CONCLUSIONS:The method is simple,accurate and fast,and suitable for the monitoring of LTG serum concentration.
6.Clinical observation of tacrolimus blood concentration after renal transplantation
Jianfeng ZHU ; Yiyi ZHANG ; Jiaying CHEN
Chinese Journal of Primary Medicine and Pharmacy 2010;17(10):1305-1306
Objective To study the clinical efficacy and plasma concentrations of tacrolimus in renal transplant patients. Methods Kidney transplant patients were randomly divided into experimental group and control group. Control group was treated with cyclosporin A, experimental group was treated with tacrolimus. Clinical efficacy of two groups was compared,and plasma concentrations of tacrolimus the experimental group were tested at different periods. Results Compared with the control group,experimental group D-BILI and the concentration of T-BILI significantly lower,rate of acute rejection and infection significantly reduced,the differences were statistically significant (P <0.05) ;At the same time,in the experimental group,blood concentration of FK506 in patients at different periods after surgery were different. Conclusions . Tacrolimus was expected to develop ithe main immunosuppressant, its blood concentration factors of further research would be beneficial for to provide a reasonable regimen the clinical organ transplant patients.
7.Comparative study on the characteristics of initial sandplay in college students with high and low gregarious personality
Jianfeng TAN ; Yaoqi CHEN ; Jielin YANG
Chinese Journal of Behavioral Medicine and Brain Science 2013;(3):259-262
Objective To compare the characteristics in initial sandplay of college students with high and low gregarious personality,to validate the psychological assessment function of the initial sandplay.Methods Used the 16-PF as the tool to selected the 56 students as the high gregarious group,and 36 students as the low gregarious group.Results On selection of toys,the proportions of high gregarious group were significantly higher than those in low gregarious group in total numbers,plants and daily necessities ((27.77 ± 11.01)vs (20.94 ± 8.76),(7.30 ±6.43)vs(3.25 ±2.85),(3.66 ±2.86)vs(2.25 ±2.57)),and significantly lower in religion toys (0.30 ± 0.47) vs (0.86 ± 1.09).On operation process,the proportion of starting with toys in high gregarious group was significantly higher than that in low gregarious group (94.6% vs 25%).Their attitudes towards sand were random touch(28.6% vs 5.6%) and indifference(62.5% vs 41.7%).They used more grass(55.4% vs 27.8%),more real characters(83.9% vs 50%),fewer virtual characters(55.4% vs 83.3%) and more dynamic changes in creation(14.3% vs 0%),more applied by the social scene (39.3% vs 0%).On the theme of sandplay,the high gregarious group was fewer appear by the empty,neglect,injury ((3.6% vs 19.4%),(0% vs 8.3%),(0% vs 8.3%) respectively,P < 0.05).Conclusion The results show that the high and low gregarious personality have significantly characteristics in initial sandplay.Sandplay is valuable to be a personality assessment tool.
8.Experimental observation of the changes and correlation of bone collagen and biomechanical property in osteoporosis rats
Jianfeng ZHANG ; Yunzhen CHEN ; Haichun LIU
Orthopedic Journal of China 2006;0(23):-
[Objective]To investigate the changes and correlation of bone collagen and biomechanical property in osteoporosis rats.[Method]Normal 30 nullimating female 7 month SD rats were divided randomly to two groups,each included 15.The sham group was unovariectomized,and the OVX group was ovariectomized.To execute the rats after 12 weeks,the author get the 5th lumbar vertebra,and then detected the biomechanical property and HYP.The author observed the collagen morphology of the 4th lumbar vertebra using the microscope after the masson triad color dyeing.[Result]Twelve weeks later,HYP in the sham group was(0.197?0.035)mg/g.The bone collagen was regular,compact,and closed succession.HYP in the OVX group was(0.182?0.022)mg/g.The bone collagen was incompact,thin,collapse and poor succession.There was significant change of the HYP in two groups(P
9.Expressions of E-cadherin, and ?-,?-catenin in Breast Cancers and Their Lymph-node Metastatic Tumors
Jianfeng YANG ; Shaohua PENG ; Senglin CHEN
Journal of Chinese Physician 2001;0(02):-
Objective To investigate the protein expressions of E-cadherin and ?-,?-catenin in breast cancers and their lymph-node metastatic tumors to evaluate their possible role in breast cancer invasion and metastasis. Methods High sensitive S-P immunohistochemical method was used to detect the protein expressions of E-cadherin and ?-,?-catenin in 60 breast cancers(31cases with lymphatic metastasis) and their lymph-node metastatic tumors. Results The abnormal expression rates of the E-cadherin and ?-,?-catenin were 51 7%, 61 7%, 70% respectively in the 60 cases of breast cancers. The expression of E-cadherin was significantly associated with lymphatic metastasis(P
10.Advances in Toxicity of Polychlorinated Biphenyls on Animals and Human Livers
Beibei LIU ; Jianfeng CHEN ; Yong ZHANG
Journal of Environment and Health 1993;0(01):-
Polychlorinated biphenyls(PCBs) is one of persistent organic pollutants which are widely exist in environment.This review described PCBs characteristics and toxicity on animals and human livers.Before now,it was identified that PCBs caused liver damage and hepatocarcinogenicity for animals.However,occupational studies and long-term,low level exposure studies to human beings have found no direct correlation between PCBs exposure and liver damage and carcinogenicity,only accidental environmental exposures have found increased mortality of liver disease.But high morbidity of human liver cancer and detected PCBs in the environment were reported in some regions.It is evident that more researches should be done.