1.Establishment and Development of the Educational System for Part-time Graduate Students in Chinese Medicine Education
Yafei SHI ; Shijiu QIU ; Bin CHEN
Chinese Journal of Medical Education Research 2005;0(06):-
The part-time graduate student education is the important part of the graduate student system in Chinese medicine education.Developing and regulating the part-time graduate student education in Chinese medicine is helpful to the consummation of Chinese medicine graduate student system,the cultivation of the high lever talents in Chinese medicine,and keeping up with international graduate student educational system.
2.Construction on curricular system of profession degree for master-disciple postgraduates of traditional Chinese medicine
Caixia ZHANG ; Zhihui YANG ; Huafeng PAN ; Yafei SHI
Chinese Journal of Medical Education Research 2012;11(5):472-474
A detailed analysis on the curriculum status of profession degree for the fourth batch of master-disciple postgraduates in Guangzhou University of traditional Chinese Medicine (TCM) was provided.The basic idea on the construction of the curriculum system was proposed in view of strengthening TCM clinical thinking,skills and scientific research capacity.The course content was optimized combining the classic TCM theory with clinical skill practice course and innovate teaching methods depending on the inservice and remote learning of students were used.A relatively perfect professional degree curriculum system for master-disciple postgraduates of TCM was built.
3.Drug resistance analysis of bacteria isolated from a hospital of Chengdu from 2012 to 2013
Yafei YIN ; Chunxiao HU ; Meng SHI ; Yong ZHOU
International Journal of Laboratory Medicine 2015;(21):3133-3136
Objective To learn drug resistance of bacteria isolated from a hospital of Chengdu from 2012 to 2013 .Methods From 2012 to 2013 ,39 732 clinical specimens were collected ,ATB Express half‐automatic bacteria identification system were used to identify the bacteria ,and paper diffusion(K‐B) method was used to do drug sensitive test ,results were judged according to Clini‐cal and Laboratory Standards Institute 2012 standard interpretation ,Whonet5 .6 was used to do statistical analysis .Results In the bacteria isolated from this hospital in 2012 and 2013 ,gram‐positive bacteria accounted for 27 .7% and 37 .4% respectively ,gram negative bacteria accounted for 72 .3% and 62 .6% .The top five pathogenic bacteria were E .coli(16 .3% ,20 .3% ) ,Pseudomonas aeruginosa(11 .5% ,11 .7% ) ,Staphylococcus aureus (11 .3% ,11 .4% ) ,Acinetobacter baumannii(10 .6% ,9 .3% ) ,Klebsiella pneu‐moniae(14 .7% ,12 .0% ) .The detection rates of Methicillin‐Resistant Staphylococcus(MRSA) were 56 .2% ,47 .7% .The positive rates of producing extended spectrum βlactamases(ESBLs) of E .coli and Klebsiella pneumonia accounted for 41 .0% ,32 .2% and 21 .0% ,10 .8% ,which were high sensitive to carbon penicillium alkene antibiotics and amikacin .Susceptibility monitoring results showed that the drug resistance of Acinetobacter baumannii was rising ,and the drug resistant of Pseudomonas aeruginosa to most antibiotic were decline .Conclusion The top five bacteria isolated from this hospital in 2012 and 2013 are given priority to gram‐negative bacteria ,in addition to the drug resistant trend of Acinetobacter baumannii increased slightly ,the drug resistant of other four common bacteria were decline .Clinical attention should focus on positive ESBLs ,E .coli ,Klebsiella pneumoniae ,MRSA and M ulti‐resistant bacteria .
4.Correlation between cognitive impairment and cerebral atherosclerosis in patients with acute ischemic stroke
Yafei ZHOU ; Jing SHI ; Cuiping SI ; Yang XU ; Zhongrui YAN
International Journal of Cerebrovascular Diseases 2015;23(4):260-264
Objective To investigate the correhtion between cognitive impairment and cerebral atherosclerosis in patients with acute ischemic stroke.Methods Acute ischemic stroke patients without cognitive impairment were recruited before symptom onset.The Montreal cognitive assessment (MoCA) was used to evaluate the cognitive function.Magnetic resonance imaging (MRI) was used to identify the infarct locations and sides.Magnetic resonance angiography,CT angiography and digital subtraction angiography were used to identify atherosclerotic arteries.Resul~ A total of 101 patients with acute ischemic stroke were enrolled,including 75 (74.3%) with cognitive impairment.The proportions of age (54.54 ± 12.59 years vs.64.43 ± 10.37 years;t =-3.960,P <0.001),years of education ≤6 years (50.7% vs.11.5%;x2 =12.257,P < 0.001),and cerebral atherosclerosis (89.3% vs.50.0%;x2 =18.137,P <0.001) of the cognitive impairment group were significantly higher than those of the normal cognitive function group.Multivariate logistic regression analysis showed that cerebral atherosclerosis was an independent risk factor for cognitive impairment in patients with acute ischemic stroke (odds ratio 1.720,95% confidence interval 1.005-2.942;P=0.048).MoCA score was negatively correlated with the offending vessels (r=-0.365,P< 0.001) and the most severe vessels of atherosclerotic degree (r=-0.243,P =0.014).Conclusions Most patients with acute ischemic stroke had cognitive impairment in the early stage after onset,and the MoCA scores was negatively correlated with the degree of cerebral atherosclerosis.Cerebral atherosclerosis was an independent risk factor for cognitive impairment in patientswith acute ischemic stroke.
5.Research on effect of central 5-HTergic system in early-onset depression
Liming ZHENG ; Yafei SHI ; Haomeng WU ; Zhiwei XU
Chinese Pharmacological Bulletin 2015;(1):19-22,23
Nowadays the pathogenesis of early-onset depression is still uncertain. Only SSRIs are currently approved for clinical use as antidepressants in children and adolescents, indicating that 5-HT is the most important neurotransmitter involved in the dis-ease. Current studies with regard to central 5-HTergic system in early-onset depression mainly focus on 5-HT synthesis deficien-cy, 5-HT transportation dysregulation, as well as the earlier mat-uration of 5-HT system than norepinephrine system. 5-HT precur-sor tryptophan malabsorption and dysregulation of 5-HT synthesis can contribute to 5-HT deficiency. Moreover, the 5-HTTLPR low-expressing genotypes may increase the risk of early-onset de-pression. It is necessary to make preclinical and clinical studies more widely and deeply about the effect of central 5-HTergic sys-tem in early-onset depression in future.
6.Analysis of clinical distribution of streptococcus penumoniae and drug susceptibility test results
Yafei YIN ; Meng SHI ; Ling LU ; Yong ZHOU
Chongqing Medicine 2017;46(7):913-915
Objective To understand the clinical distribution situation of streptococcus penumoniae (SP) and drug susceptibility test results to provide a basis for the clinical diagnosis,treatment and prevention of SP infection.Methods Totally 416 nonrepeat strains of SP were isolated during 2010 to 2015.Their identification and drug susceptibility test were performed by using the ATB Express bacterial identification system.The results were interpreted according to the standard of CLSI 2014 edition.Results In these 6 years,SP showed the isolation peak in spring and winter;the detection rate of respiratory tract specimens reached more than 90 %;the young children and elderly people were predominant;SP maintained high sensitivity to penicillin,amoxicillin,etc.,the difference in the sensitivity rate and non-sensitivity rate had statistical significance(P<0.05);but SP showed high level non-sensitivity to clindamycin,erythromycin,etc.,the difference in the sensitivity rate and non-sensitivity rate had no statistical significance (P>0.05).Conclusion Although β-lactam antibiotics such as penicillin can still be used as the first choice of therapy,but PISP and PRSP show the increasing trend year by year;therefore the antibacterial drugs should be selected according to the drug susceptibility test results.
7.Effect of Jiawei sinisan on the levels of some amino acids in hippocampus of rats with chronic stress
Can YAN ; Lili WU ; Zhiwei XU ; Yafei SHI ; Yi PAN
Chinese Journal of Pathophysiology 2000;0(10):-
AIM: To observe the effect of Jiawei sinisan (JWSNS) on some amino acids in hippocampus of rats with chronic stress. METHODS: Wistar rats were randomly divided into 3 groups: control, model and JWSNS group. OPA (HPLC) was adopted to detect the contents of amino acids in hippocampus. RESULTS: The contents of Glu and Asp in hippocampus of model group increased significantly ( P
8.Inhibition effects of monoclonal antibody C225 on breast cancer stem cells
Yafei SHI ; Mingzhu HUANG ; Fengchun ZHANG ; Yanyun ZHANG ; Mingzhi CAO
Journal of Shanghai Jiaotong University(Medical Science) 2009;29(11):1311-1315
Objective To explore the inhibition effects of epidermal growth factor receptor (EGFR) antagonist monoclonal antibody cetuximab (C225) on breast cancer stem cells in human breast cancer cell line MCF-7.Methods The effects of C225 on the proliferation of breast cancer cell line MCF-7 were detected by MTT assay. MCF-7 cells were cultured to generate primary mammospheres, and were divided into control group, C225 group, epidermal growth factor (EGF) group and EGF + C225 group according to whether or not the culture media contained exogenous EGF and C225.Thirteen days after culture, the volume and number of mammospheres of these four groups were observed, and mammosphere-forming efficiency ( MFE) was calculated. The percentages of CD44~+ CD24~- cells in mammospheres of these four groups and in routinely cultured MCF-7 cells were determined by flow cytometry. Results The inhibition rate on MCF-7 cells increased with the concentration of C225.Compared with control group, the volume of mammospheres in C225 group significantly decreased, and MFE and percentages of CD44~+ CD24~- cells in mammospheres significantly decreased [(0.61 ±0.04)% vs (1.44±0.09)%, P<0.01; (3.50±0.29)% vs (9.07 ±0.52) % , P<0.01]. Compared with EGF group, the volume of mammospheres in EGF + C225 group significantly decreased, and MFE and percentages of CD44~+ CD24~- cells in mammospheres significantly decreased [ (0.68 ± 0.04) % vs (1.61 ± 0.05) % , P < 0.01; (4.00 ± 0.58) % vs (10.47 ± 0.79) % , P < 0.01]. The percentage of CD44~+ CD24~- cells in routinely cultured MCF-7 cells was (2.03 ±0.15) % , and was significantly different from those in EGF group and control group (P < 0.01). There was no significant difference in volume of mammospheres, MFE and percentage of CD44~+ CD24~- cells in mammospheres between EGF group and control group (P >0.05). Conclusion C225 has significant inhibition effects on CD44~+ CD24~- cells in MCF cells.
9.Comparison among the effects of tiaogan recipe, jianpi recipe,bushen recipe and ginsenoside on the contents of amino acids in hypothalamus and hippocampus of rats under repeatedly psychic stress
Zheng ZHANG ; Can YAN ; Yan LI ; Zhiwei XU ; Yafei SHI ; Lili WU ; Jian WANG ; Yi PAN
Chinese Journal of Tissue Engineering Research 2005;9(48):179-181
BACKGROUND: When one is in a stress state, some amino acids as neurotransmitter in his brain are of important regulating action to his cerebral functions and his psychic behaviors,and some traditional Chinese drugs can regulate the stress state of the body.OBJECTIVE:To observe the content changes of glutamic acid,aspartic acid, γ-aminobutyric acid and taurine in the hypothalamus and hippocampus of rats under repeatedly psychic stress so as to investigate the effects of tiaogan recipe, jianpi recipe, bushen recipe and ginsenoside on them.DESIGN: A randomized grouping and controlled observation trial.SETTING:Department of Basic Theory of Traditional Chinese Medicine(TCM) of Basic Medical Science College, Guangzhou University of TCM.MATERIALS:The experiment was completed from March 2002 to January 2003 at the Animal Center of Guangzhou University of TCM.Totally60 Wistar rats were randomly divided into 6 groups: normal, model, tiaogan, bushen, jianpi and ginsenoside groups, with 10 in each group. Compositions and doses of tiaogan recipe: radix bupleuri 5 g, fruetus gardeniae 5 g,radix paeoniae alba 15 g,fructus lycii 15 g,fructus aurantii 6 g,radix rehmanniae 18 g, concha haliotidis 30 g. Compositions and doses of shenqi pill: radix rehmanniae 30 g, rhizoma dioscoreae 15 g, fructus corni 15 g,rhizoma alismatis 10 g,poria 10 g,cortex moutan radicis 10 g,ramulus cinnamomi 4 g, radix aconiti praeparata 4 g. Compositions and doses of sijunzi decoction:radix codonopsis pilosulae 20 g,rhizoma atractylodis macrocephalae 15 g, poria 15 g, radix glycyrrhizae preparata 6 g.METHODS:① The traditional Chinese medicines were conventionally decocted; and the tiaogan recipe condensed to the liquid containing1.69 g/mL crude drug, shenqi pill containing 1.76 g/mL crude drug,sijunzi decoction containing 1.01 g/mL crude drug.Ginsenoside was prepared as 7 g/L water solution.The rats in the normal and model groups were by gavage given 2 mL of 9.0 g/L sodium chloride injection.The rats in the tiaogan, bushen, jianpi and ginsenoside groups were respectively by gavage given 2 mL of tiaogan recipe, shenqi pill, sijunzi decoction and ginsenoside solution 1 hour before immobilization stress. ② Except for rats in the normal group, those in the rest groups were all conducted for establishment of psychic stress reaction model.The rats were put into an immobilization tube,their action space was gradually reduced by using a mobile insertion piece,they were regulated to a nervous state without prpduction of intense revolting, which was done once a day, starting with 4 hours immobilization on the first day, and later on increased by 30-60 minutes per day, for consecutive 14 days. ③ The whole brain of the rats in each group was collected by decapitation,OPA high-performance liquid chromatography was used for assays of the contents of glutamic acid, aspartic acid, γaminobutyric acid and taurine in hypothalamus and hippocampus of the rats.MAIN OUTCOME MEASURES: The content changes of glutamic acid,aspartic acid,γ-aminobutyric acid and tanrine in the hypothalamus and hippocampus of rats in each group.RESULTS: Totally 60 rats involved all entered into the result analysis. ①The content changes of glutamic acid in the hypothalamus and hippocampus of rats in each group:Compared with normal group,the contents of glutamic acid in hypothalamus of rats in the tiaogan, jianpi,bushen and ginsenoside groups were markedly decreased [(21.85±8.19), (15.76±1.80),(14.68±7.91), (21.46±5.45), (13.43±7.68) μmoL/g]; compared with model group,the contents in the tiaogan, bushen, jianpi and ginsenoside groups were obviously raised [(11.04±3.65), (11.78±2.17), (18.67±2.98), (20.91 ±3.96),(17.71±1.83) μ moL/g, P < 0.05, P < 0.01, P < 0.01, P < 0.05]. ② The content changes of aspartic acid in the hypothalamus and hippocampus of rats in each group:Compared with model group,the contents of aspartic acid in the hypothalamus in the jianpi and ginsenoside groups were obviously decreased [(8.65±1.18), (5.72±1.32), (4.67±1.88) μmoL/g, P < 0.01,P < 0.01], while the contents in the hippocampus of rats in the jianpi,bushen and ginsenoside groups were markedly raised[(2.58 ±0.87),(3.93±0.49), (4.52±0.98), (3.83±0.41) μmoL/g, P < 0.01, P < 0.01, P < 0.05].③ The content changes of γ-aminobutyric acid in the hypothalamus and hippocampus of rats in each group:Compared with model group,the contents of γ-aminobutyric acid in the hypothalamus of rats in the tiaogan,jianpi,bushen and ginsenoside groups were markedly decreased[(20.92±4.96), (15.87±2.90), (13.84±2.63), (14.94±3.98), (10.94±3.68) μ moL/g,P < 0.05, P < 0.05, P < 0.01, P < 0.01], while the contents in the hypothalamus were obviously raised [(4.12±1.66), (4.18±1.04), (6.67±1.29),(6.11±0.99), (6.37±0.78) μmoL/g, P< 0.05, P< 0.01, P< 0.01, P< 0.01].④ The content changes of taurine in the hypothalamus and hippocampus of rats in each group: Compared with model group, the contents of taurine in the hypothalamus of rats in the tiaogan, jianpi, bushen and ginsenoside groups were markedly decreased [(10.24±1.72), (7.82±1.14), (8.00±2.05),(6.42±3.17) μmoL/g, P < 0.05, P < 0.05, P < 0.01], while the contents in the hippocampus in the jianpi and ginsenoside groups were obviously raised [(12.61±3.51), (17.03±2.74), (18.04±2.14) μnoL/g, P< 0.01, P< 0.01].CONCLUSION:The central acting site of tiaogan recipe may mainly be in the hypothalamus,possibly being related with down-regulating amino acids.While the central acting sites ofjianpi recipe,bushen recipe and ginsenoside may include the hippocampus and hypothalamus, being mainly related with up-regulating amino acids,through enhancing the integration of the hippocampus on stress so as to gain the effect of anti-injury of stress.
10.Effects of rosuvastatin on matrix metalloproteinase 2 expression and cell migration of rat vascular smooth muscle cells
Yangbo XING ; Hangyuan GUO ; Yafei SHI ; Fangfang YANG ; Yufang QIU ; Biao YANG ; Fang PENG
Chinese Journal of Geriatrics 2011;30(7):593-597
Objective To observe the effects of rosuvastatin on the homocysteine (Hcy)-induced expression of matrix metalloproteinase 2 (MMP 2) and cell migration in rat vascular smooth muscle cells (VSMCs), and to explore the possible mechanism of Hcy-induced atherosclerosis and the role of statins in reversing atherosclerosis. Methods In one cell culture plate, the cultured rat VSMCs were incubated with different concentrations of Hcy (0, 50, 100, 500, 1000 μmol/L and 5000 μmol/L) in vitro for 24 h, 48 h and 72 h. And in another cell culture plate, the different concentrations of rosuvastatin (10-9, 10-8, 10-7, 10-6, 10-5 mol/L and 0 mol/L) were added to the cultured rat VSMCs (while the concentration of Hcy was 1000 μmol/L). The MMP 2 expression and enzyme activity were determined by gelatin zymography and Western blotting. The effects of Hcy and rosuvastatin on cell migration and invasiveness of VSMCs were observed. Results Hcy (50-5000 μmol/L) increased the protein expression, and Hcy (50-1000 μmol/L) increased enzyme activity of MMP 2 significantly. But Hcy (5000 μmol/L) inhibited activity of MMP 2 (F=9.31, 6.44 and 5.97, all P<0.05). Rosuvastatin (10-9-10-5 mol/L) inhibited Hcy-induced expression and enzyme activity increasing of MMP 2. The counts of cell migration of VSMCs were 18.32±2.17, 32.68±4.34, 44.75±4.08, 61.39±5.21, 79.74±5.54 and 90.78±5.83, while the concentration of Hcy was 0, 50, 100, 500, 1000 μmol/L and 5000 μmol/L respectively (F=5.31, P<0.05). The counts of cell migration of VSMCs were 79.74±5.54, 62.53±6.41, 48.37±5.66, 31.41±4.79, 19.27±3.62 and 11.17±2.33, while the concentration of rosuvastatin was 10-9, 10-8, 10-7, 10-6 and 10-5 mol/L respectively (F=4.99, P<0.05). Rosuvastatin could decrease the stimulation of Hcy-induced migration of VSMCs. Conclusions Hcy can influence the MMP 2 protein expression/activity in VSMCs, and rosuvastatin can inhibit augmentation of Hcy-induced MMP 2 expression/activity and migration of VSMCs. It may be one of the multiple-effects of rosuvastatin reducing atherosclerosis.