1.Application of the Evaluation Scale of Graduate Tutors in Medical Universities
Ling MA ; Liping LEI ; Gaiqing CHEN
Chinese Journal of Medical Education Research 2003;0(03):-
Objective:To evaluate graduate student tutors in medical universities using an available scale to improve graduate education management.Method:Graduate students in Grades 2006 and 2007,who had passed thesis defense,were investigated online.The results were analyzed by statistics.Conclusion:Most of graduate students were satisfied with their tutors.The results proved very helpful for the innovation of graduate education management.
2.The effects of offspring's behavior and SERT and TPH during the lactation exposure to fluoxetine
Shu CHEN ; Moxuan CHEN ; Ling JIANG ; Lei LEI ; Ya ZHOU ; Qian CHEN ; Lijuan AO
Chinese Journal of Nervous and Mental Diseases 2016;42(11):641-646
Objective To explore the influence of the lactation exposure to fluoxetine on offspring's behavior and serotonin transporter (SERT) and tryptophan hydroxylase (TPH). Methods Six SD pregnant rats were randomly divided into 2 groups (n=3 each group). Experimental maternal rats were intraperitoneally injected with fluoxetine at a dose of 12 mg/kg from postnatal day 5 to 21. The control group were injected with the same amount of normal saline. In infancy, the offspring's weight, hair length, eye opening and auditory development were measured. The free suspension test and bur?ied food pellets test were applied to evaluate the offspring's behaviors. After postnatal day 21, all the offspring were wean. At early childhood (P35d) and adulthood (P75d), 6 offspring rats from each group were executed to examine SERT and TPH in the prefrontal cortex by immunohistochemistry. Results The offspring's weight of experimental group was significantly lower than control group (P<0.05). The sensitivity of auditory in experimental group was significantly higher than control group (P<0.01). The time of free suspension in experimental group significantly was decreased comparing to control group (P<0.01). The SERT and TPH in prefrontal cortex was significantly lower in experimental group than those in control group either at childhood (P35d) or at adulthood (P75d) (P<0.05). Conclusion Lactation exposure to fluoxetine re?sults in offspring's abnormal development and behaviors through down-regulation of SERT and TPH in the prefrontal cor?tex.
3.Effect of TPh on cell HepG-2 cell cycle, apoptosis and related gene expression of hepatocellular carcinoma
Ruonan JIAN ; Lei FAN ; Lijuan LIU ; Chen MA ; Ling LI
Chinese Journal of Biochemical Pharmaceutics 2017;37(2):15-19
Objective To investigate the effect of different concentrations of TPh on hepatoma cells , cell viability and and its possible mechanisms of anti-tumor.Methods The inhibitory rate of hepatoma cells and cell viability on different concentrations of TPh and time were measured by MTT assay;The morphological changes of apoptosis were observed by Hoechst 33258 straining; Cell cycle distribution was evaluated by flow cytometry (FCM).The protein expression of Bcl-2 and Bax were detected by Western blot analysis.Results MTT assay showed that TPh inhibited the proliferation of HepG-2 cells in a dose-dependent manner, and the inhibitory rate increased with the increase of concentration.The inhibitory rate was 50.9% (P<0.01).The results of Hoechst 33258 staining showed that the fluorescence intensity of hepatocellular carcinoma cells was light blue in fluorescence microscopy and bright blue fluorescence in apoptotic hepatocarcinoma cells, and the apoptosis of hepatocarcinoma cells increased with the increase of drug concentration.The percentage of cells in G0/G1 phase increased with the increase of cell cycle, and the ratio of cells in S phase was decreased in G2/M phase compared with blank control group (P<0.05);Western blot results showed that compared with the blank control group, TPh inhibited the proliferation of Bcl-2 cells in a concentration-dependent manner ( P <0.05 ) , and the number of apoptotic cells increased with the increase of drug concentration (P<0.05), and the ratio of Bcl-2/Bax in the TPh group decreased significantly (P<0.05), and the expression of Bax gene increased. Conclusion TPh inhibits cell proliferation, promotes apoptosis and induces HepG-2 to block G0/G1 phase.Its mechanism may increase the expression of Bax and decrease Bcl-2 protein expression.
4.Analysis of the Utilization of Narcotic Drugs and First Type Psychotropic Drugs in a Third Grade Class A Hos-pital during 2012-2014
Li JIANG ; Dandi CHEN ; Wangdong FAN ; Ling HUANG ; Lei XU
China Pharmacy 2015;26(35):4912-4915
OBJECTIVE:To provide reference for rational use of analgesic drugs for advanced cancer,moderate to severe pain. METHODS:The data of narcotic drugs and first type psychotropic drugs were collected from hospital information system of a third grade class A hospital during 2012-2014,and then analyzed in respects of amount,consumption sum and DDDs,etc. RE-SULTS:The amount of narcotic drugs and first type psychotropic drugs kept stable basically,and the consumption sum of them during 2012-2014 was 1 566 289.92 yuan,1 525 220.23 yuan and 1 531 277.44 yuan. The consumption sum of Morphine hydrochlo-ride tablet increased the fastest,increasing by 89.78% in 2013 and 142.81% in 2014,compared with the year before;those of other drugs had negative growth rate. DDDs of Morphine hydrochloride sustained-release tablets were the highest among all the narcotics and first type psychotropic drugs and increased year by year,increasing from 26 848.00 in 2012 to 47 158.00 in 2014. CONCLU-SIONS:The use of narcotic drugs and first type psychotropic drugs conform to the specifications,but they still need strict supervi-sion to promote safe and effective use of them in the clinic.
6.STUDIES ON THE NUTRITIONAL VALUE AND BIOLOGICAL EFFECT OF COLLYBIA VELUTIPES
Chengde LING ; Jingzhong HUA ; Zhongli CHEN ; Lei FENG
Acta Nutrimenta Sinica 1956;0(02):-
The purpose of this study is to assess the nutritional value and biological effect of Collybia Velutipes. The results were as follows: (1) 10% Collybia Velutipes extract contains 19210mg/L of total amino acid. It is more than the content in the equal amount of mushrooms. (2) The kindergarten children were fed with Collybia Velutipes product for 7 weeks. It was found that the height and the circumference of the mid-upper arm in the children were significantly higher than the control. (3) Weanling male and female rats of wistar strain were divided into two groups ana led the following diets: group l(control), Collybia Velutipes (CV) free diet; group 2(subject), diet containing 25% CV product which contains 2.5% dried CV. The rats were fed the diet ad libitum for 6 weeks. At the end of the experiment, we found that the food effect (FE) of the subject group was significantly higher than the control (P
7.Clinical features of interstitial lung disease in patients with primary Sj(o)gren's syndrome
Ling LEI ; Chen ZHAO ; Cundong MI ; Xiaoning ZHONG
Chinese Journal of Rheumatology 2010;14(5):326-328
Objective To explore the clinical,laboratory,and pathologic manifestations of the interstitial lung disease(ILD)associated with primary Sj(o)gren's syndrome(pSS,pSS-ILD).Methods Clinical data of 15 patients with pSS-ILD admitted to our hospital from 2006 to 2008 were collected and the different features were compared with 18 patients with pSS without ILD.Eight patients with pSS-ILD were followed up and observed the changes of high-resolution computed tomography (HRCT).Results The age at onset was later in pSS-ILD[(57±11)years]than in pSS without ILD[(43±11)years](P<0.01).The initial symptoms in six of patients with pSS-ILD were cough,expectoration,chest distress or dyspnea upon exertion.The respiratory clinical manifestations,circulationsystem involvement and pulmonary artery hypertension (PAH) were more common in pSS-ILD than in pSS without ILD(P<0.01).Compared with patients with pSS without ILD,patients with pSS-ILD had significantly higher serum IgG level(P<0.01).The common findings of HRCT included reticular changes,irregular linear hyper-attenuating areas,and nodules.Pleural involvement was found in 8 patients,honeycomb change in 5 patients and PAH in 3 patients.After treated for 6 months of 8 patients,radiological findings improved in 4 patients,stable in 2 patients,and worse in 2 patients.The comlnon histological findings included focal fibrosis in alveolar wall and alveolus with and alveolar space inflammatory cell infiltration,interstitial inflammation with mulifocal lymphocyte infiltration.One patient had the pathological changes of nonspecific interstitial pneumonia(NSIP).Conclusion The age at onset of pSS-ILD is late and tends to produce respiratory symptoms and prone to have circulationsystem involvement such as PAH and elevated serum IgG level.Honeycomb change in HRCT can be seen in one third of patients and most patients can improve after treatment,however.NSIP can be observed in histopathologieal
8.Simultaneous Determination of 5 Saponins in Lonicerae Flos by QAMS Method
Ling SUN ; Xiaolan FAN ; Qi GUO ; Xiaomeng ZHANG ; Lei CHEN
China Pharmacy 2017;28(18):2546-2549
OBJECTIVE:To establish the method for simultaneous determination of 5 saponins in Lonicerae Flos. METHODS:Using macranthoidin B as a reference,HPLC method was adopted to calculate the relative correction factor(RCF)of it to macran-thoidin A,dipsacoside B,macranthoside A and macranthoside B. The contents of above 4 saponins were calculated through RCF. Using the contents of saponins determined by external standard method as measured value,the calculated value was compared with measured value. RESULTS:The linear ranges of macranthoidin A,macranthoidin B,dipsacoside B,macranthoside A and macran-thoside B were 0.316-6.32 μg(r=0.9973),0.453-9.06 μg(r=0.9982),0.231-4.62 μg(r=0.9996),0.342-6.84 μg(r=0.9984) and 0.147-2.94 μg(r=0.9961),respectively. RSDs of precision,stability and reproducibility tests were all lower than 2.0%. The recoveries were 97.74%-104.51%(RSD=2.37%,n=6)、96.70%-103.20%(RSD=2.37%,n=6)、96.12%-103.61%(RSD=2.45%, n=6)、98.80%-104.70%(RSD=2.32%,n=6)、99.21%-102.92%(RSD=1.39%,n=6),respectively. There was no statistical sig-nificance between calculated value and measured value(P>0.05). CONCLUSIONS:The method is simple,precise,stable and re-producible. It can be used for the determination of saponins in Lonicerae Flos.
9.Analysis of general curriculum satisfaction survey in local medical college
Yu CHEN ; Ling MA ; Huixia ZHANG ; Lei WANG ; Tao LIU
Chinese Journal of Medical Education Research 2014;(6):626-630
Objective To learn students' satisfaction with the general education courses, discuss the problems in comprehensive general education courses in local medical colleges , and provide the basis and reference for the medical general education courses reform. Methods Using the stratified random sampling method, self-designed questionnaire to local medical colleges of 575 different professions stu-dents. The questionnaire had the total of 54 topics whose contents were related to the basic situation aware-ness and satisfaction, the demand for general education courses, general education curriculum problems and suggestions. The survey data were analyzed using SPSS 19.0 software and the results were expressed by the relative number(rate and percentage). The differences between different majors and different grade student satisfaction were analyzed by using rank-sum test, showing statistical significance(P<0.05). Results The total satisfaction was not very high, only 219 students(38%) were satisfied with general curriculum;256 students(45%) thought it didn't matter whether to set general education courses;100 students(17%) were not satisfied. In addition, satisfaction with different grades was undifferentiated (P=0.798), but there was a statistical difference among the students of different professions(P=0.007). Conclusion The general education curriculum of medical schools should not blindly pursue being wide and full. Instead, it should be built from three aspects such as core curriculum, flexible teaching methods, teaching methods reform to enhance teaching effectiveness.
10.Distribution and drug resistance of pathogens isolated from urine culture in 2013 from a 3A hospital
Qiang XIE ; Mingjie CAO ; Ling CHEN ; Chengyu LEI ; Tiantian XU
International Journal of Laboratory Medicine 2015;(14):2047-2048
Objective To investigate the distribution and drug resistance of pathogens isolated from urine culture in 2013 and provide basis for clinical treatment .Methods MicroScan WalkAway 96 PLUS bacterial identification system was used to identify the pathogens and drug susceptibility testing .The data were analyzed by WHONET 5 .6 software .Results A total of 231 strains of pathogens were isolated from urine cultures ,including 51(22 .1% ) strains of gram‐positive bacteria ,170(73 .6% ) strains of gram‐negative bacteria ,and 10(4 .3% ) strains of fungi;Escherichia coli ,the coagulase‐negative Staphylococcus ,Klebsiella pneumoniae and E .faecalis were ranked the top four species of pathogens ,accounting for 48 .9% ,13 .0% ,9 .5% ,5 .2% ,respectively .MRCNS among CNS were 73 .6% .Staphylococcus had 100 .00% sensitivity to vancomycin and linezolid ;the antimicrobial resistance rate of E .fae‐calis to ampicillin was 8 .3% .E .faecalis had 100 .00% sensitivity to vancomycin and linezolid .the detectable rates of Escherichia co‐li ,Klebsiella pneumoniae of ESBLs were 52 .2% and 50 .0% ,and the strains had 100 .00% sensitivity to imipenem and meropenem . Conclusion Escherichia coli is a major pathogen in urine culture ,Bacterial resistance is serious .