The application of improved team-based learning based on the training goal of excellent doctors in ophthalmology internship class / 中华医学教育探索杂志

Objective:To evaluate the effect of the improved team-based learning (TBL) teaching method in the undergraduate probation course of ophthalmology based on the goal of cultivating excellent doctors.Methods:The undergraduates of clinical medicine were randomly divided into experimental group and control group. The control group ( n=50) was given conventional ophthalmology probation teaching, while the experimental group ( n=50) was given ophthalmology probation teaching of improved TBL teaching method. The theoretical examination performance and skill assessment results of students in the two groups were compared, and the subjective evaluation of the students on the teaching was also compared. SPSS 23.0 was used to conduct t-test and Wilcoxon's rank sum test. Results:The theoretical examination performance of experimental group (29.68±4.52) was better than that of control group (27.84±4.33), with significant differences ( P<0.05); the skill assessment results of experimental group (32.88±5.05) were also better than those of the control group (30.88±6.99), with significant differences ( P<0.05); the subjective evaluation of teaching effect in each item of experimental group was better than that of control group ( P<0.05). Conclusion:The improved TBL teaching method can not only improve students' theoretical knowledge and experimental skills, but also improve students' self-study and teamwork ability, which will provide a feasible educational reform plan for achieving the goal of cultivating excellent doctors.

Regulation of capsaicin receptor TRPV1 on depressive behavior and neuronal autophagy in cerebral ischemia-reperfusion mice / 中华行为医学与脑科学杂志

Objective:To explore the effect and molecular mechanism of capsaicin receptor(TRPV1) on neuronal autophagy and depression-like behavior in mice.Methods:Using the method of random number table, 87 C57 male mice were divided into Sham operation group (Sham group), cerebral ischemia/reperfusion group (I/R group) and capsazepine(CPZ) preconditioning cerebral ischemia/reperfusion group (I/R+ CPZ group), with 28 mice in each group due to 3 incompatible.Mice in the I/R group were subjected to right middle cerebral artery occlusion (MCAO) to establish a cerebral ischemia-reperfusion model.Mice in the I/R+ CPZ group were injected with CPZ in the lateral ventricle prior to moulding.Mice in the Sham group had only wire plugs inserted and no arterial embolization was performed.The mNSS score was used to evaluate the degree of neurological deficits.The depression-like behaviour of mice was detected by the tail suspension test and forced swimming test.The infarct volume was observed by TTC staining.The pathological changes in the amygdala were observed by HE staining, and the expression of Beclin-1, LC3, p62 and p-PI3K, p-AKT and p-mTOR proteins were detected by Western blot.Statistical analysis was performed using SPSS 23.0 software.The t-test was used for comparison between two groups and one-way ANOVA was used for comparison of multiple group. Results:The neurological deficit score in I/R+ CPZ group (9.77±2.32) was significantly lower than that in I/R group (12.85±2.73) ( t=3.10, P<0.01). Compared with I/R group, the tail suspension immobility time of I/R+ CPZ Group ((93.28±50.69)s, (143.80±35.61) s; t=2.94, P<0.01) and the forced swimming immobility time ((139.50±13.33)s, (175.30±19.78)s; t=2.94, P<0.01) were significantly reduced.The results of TTC staining showed that the cerebral infarct volume in I/R+ CPZ group was significantly lower than that in I/R group ((19.30±5.19)%, (33.60±3.90)%; t=5.40, P<0.01). HE staining showed that the number of cells in the amygdala region of mice in the I/R+ CPZ group increased compared with that in the I/R group, with tighter arrangement and reduced deep staining of nuclear fixation.Western blot showed that compared with I/R group, the expression levels of autophagy related proteins Beclin-1( t=2.94, P<0.05) and LC3 ( t=3.16, P<0.05) in amygdala of I/R+ CPZ group were down-regulated, while the expression levels of p62( t=3.60, P<0.05), p-PI3K ( t=7.79, P<0.01), p-AKT ( t=4.15, P<0.01) and p-mTOR ( t=6.15, P<0.01) were up-regulated. Conclusion:Cerebral ischemia/reperfusion activates neuronal autophagy, and CPZ may regulate the PI3K-AKT-mTOR pathway, thus inhibits excessive activation of autophagy, thereby acting as a neuroprotective agent and improving post-stroke depression-like behaviour.

Analysis of the current situation and influencing factors of medical students' academic procrastination / 中华医学教育探索杂志

Objective:To investigate the current situation of students' academic procrastination behavior in medical colleges and universities and its influencing factors, and to put forward suggestions to reduce the academic procrastination of medical students.Methods:A total of 1 327 undergraduate students from three medical colleges and universities in Heilongjiang Province were randomly selected to receive questionnaire investigation on life satisfaction, anxiety, and academic procrastination. SPSS 23.0 was used for data analysis.Results:①The total procrastination scores of medical students were (35.00±8.92) points. ②There were statistical differences in the academic procrastination of medical students with different genders, whether the only children, the reasons for choosing the major, and the level of achievement ( P < 0.05). There was no statistical difference in academic procrastination among medical students of different ages and grades ( P > 0.05). ③Medical students' procrastination was positively correlated with their anxiety level ( r = 0.102, P < 0.01), and negatively correlated with life satisfaction ( r = -0.117, P < 0.01). ④Regression analysis showed that the following six predictive variables including the level of achievement, gender, life satisfaction, anxiety, reasons for choosing the major, and whether the only children could effectively explain the variance of 14.2% academic procrastination of medical students. Conclusion:The overall degree of academic procrastination of medical students is higher than that of non-medical students. And the students' achievement level, gender, life satisfaction, anxiety, the reasons for choosing this major and whether the only child are the influencing factors of academic procrastination.

Online and offline integrated teaching model of evidence-based medicine based on online platform for medical undergraduates / 中华医学教育探索杂志

Evidence-based medicine (EBM) is an emerging subject which allows us to make health-related policy based on evidence, and is also an important course in medical colleges and universities. Given the current educational objectives and characteristics of evidence-based medicine, this paper proposed an online and offline integrated teaching model of evidence-based medicine based on online platform for medical undergraduates. Online teaching was conducted using online platform which focus on the cultivation of evidence-based thinking and scientific research quality. Offline teaching was in-classroom teaching which focus on basic knowledge and skill learning. Practice of this model not only enriches teaching methods, but also improves the learning effect, thus this model needs to be explored and perfected in the future.

Experience of Professor SHI Weiqun in Treating Cirrhosis / 浙江中医药大学学报

[Purpose]To summarize Professor SHI Weiqun's clinnical experience in cirrhosis by Huayu method of traditional Chinese medicine, who is the famous doctor of traditional Chinese medicine in Zhejiang Province.[Method] To study and research Professor SHI Weiqun' s subjects and books on cirrhosis, to learn revelant theoretical knowledge, to follow his guidance, to collect and arrange typical cases record, and his methods of TCM differentiation of symptoms and signs

Analysis of 105 Docetaxel Related ADR Reports in Our Hospital / 中国药房

OBJECTIVE:To investigate the characteristics and influential factors of adverse drug reactions(ADRs)of docetax-el in our hospital,and to provide suggestions for clinical rational drug use and individualized administration. METHODS:Medical records of patients receiving anti-tumor chemotherapy were extracted from hospital information system(HIS)of our hospital during Apr. 2014 and Oct. 2015,and Docetaxel related ADR reports were collected and comprehensively analyzed by retrospective classi-fied statistics. RESULTS:Among 417 cases,105 cases of docetaxel related ADR were reported. There were 69 patients aged 50-69 with highest ADR frequency. The ADR incidence of female patients was higher than that of male patients (29.29% vs. 19.66%). The incidence of docetaxel related ADR and arrest of bone marrow increased as the increase of drug dosage;the incidence of breast cancer ADR was the highest (46.03%),followed by lung cancer (37.25%) and gastric cancer (25.00%). The incidence of docetaxel+platinum chemotherapy plan ADR was the highest (35.10%). Main organs/system involved in ADR was hematological system (55.65%). CONCLUSIONS:The individual difference of docetaxal related ADR are great and affected by several factors. Individual physical condition of patients should be taken into consideration as early as possible,which can reduce the incidence of ADR and promote clinical rational drug use.

The introduction and enlightenment of the teaching philosophy and methods of evidence-based medicine for foreign graduate students / 中华医学教育探索杂志

Aiming at evidence-based medicine course of graduate students, foreign medical colleges and universities usually took in the teaching philosophy that emphasized stages (focusing on knowledge ac-cumulation) and practicality (focusing on ability training). And they put forward a lot of teaching methods which implemented the conception, such as problem-based learning, journal club, blended learning approach, online learning platform, concept mapping etc. In order to provide a useful reference for the domestic teaching reform and development, this paper introduced the teaching philosophy and related teaching meth-ods mentioned above.

The effects of mangiterin on the improvement of behavior and expression of brain-derived neurotrophic factor in the hippocampus of chronic stress-induced depression model mice / 中华行为医学与脑科学杂志

Objective To explore the effects of mangiterin on behaviors and brain-derived neurotrophic factor(BDNF) of hippocampus in chronic stress depression mice.Methods 60 male mice were randomly divided into normol control group,model group,fluoxetin control group and mangiterin groups (low,medium and high dose),10 mice in each group.All mice except normal control group were singly housed and subjected to chronic stress-induced depression model for 21 consecutive days.The behaviors of mice were detected by open-field test and tail-suspension test.The expression of BDNF in the hippocampus were assessed using western blot.Results Compared with the normal group,mice exposed chronic stress showed decreased body weight((5.33 ±1.20) g),crossing lines (102 ± 18) and distances ((3425 ± 112) mm) notably decreased in open-field behavior test.The duration of immobility during tail-suspension was increased significantly.BDNF expression in the hippocampus(0.45 ± 0.03) was downregulated significantly(P＜ 0.01),while it was upregulated in the groups of mangiterin(P ＜ 0.01).Mangiterin group in high dose had the similar effects to fluoxetin group(P ＞ 0.05).Conclusion Mangiterin can ameliorate behavior impairment of chronic stress induced-depression mice and it may be related to the upregulation of BDNF expression in the hippocampus.

Dual-Sensitive Probe of 2-( Benzoacridin) ethyl-imidazole-1-carboxylate for Determination of Aliphatic Amine with Fluorescence and Online Atmospheric Pressure Chemical Ionization Mass Spectrometry Identification / 分析化学

With comparison of three different methods for the marking of amines compound, an optimal deri vatization method was selected.5-(2-Hydroxyethyl) benzoacridine (HBA) reacts with coupling agent N,N'-carbonyldiimidazole(CDI) to form an activated amide intermediate 2-(benzoacridin) ethyl-imidazole-1-carbox-ylate(BAEIC).BAEIC, which is dual-sensitive probe, reacts preferably with amino compounds at 80 ℃ in the presence of 4-dimethylaminopyridine(DMAP) catalyst in N,N-dimethylformamide(DMF) solvent to give the corresponding sensitively fluorescent derivatives with an excitation maximum at λ_(ex) of 280 nm and an emis sion maximum at λ_(em) of 510 nm.BAEIC-amine derivatives simultaneously exhibited high ionization potential with percent ionization (changing from 5.62% to 58.08% in aqueous acetonitrile and from 2.14% to 56.58% in aqueous methanol.Derivatives were not only sensitive to fluorescence but also to MS ionizable potential.The fluorescence detection limits(5/iV = 3) were 0.12-0.59 μg/L.The online APCI-MS detection limits were 1.9-14 μg/L(S/N=5).

An advance standard curve method in fluorescence real-time PCR / 中华检验医学杂志

0bjective To establish a standard curve method with more accuracy employed in fluorescence real-time PCR(RT-PCR)as a alternation of the general method.Methods β-actin and KLK11 plasmid DNA for quantitative standard curve were constructed in our study,and Plasmids of β-actin was employed as a internal control.After serial dilution these plasmid were used as DNA standard to obtained slope.Expression of these two genes in malignant prostate cancer cell line LNCAP were tested by real-time PCR,and we analyzed the RT-PCR results with two different methods and compared their accuracy.Results Thestandards curves made from these linear DNA standards showed good linearity (R2=0.991 and 0.992 for β-actin and KLK11 standards graphs),but also displayed a discrepancy in their PCR efficiency(β-actin 123% and KLK11 99%).There were different results after two different stand curve analytical method:the expression of KLK11 mRNA in LNCAP was downregulated in general standard curve method.In the new analytical method,howerer,KLK11 upregnlated for 4.46-fold.And there was a significant difference between aplification efficiency of targt gene and internal control gene(t=4.829,P<0.05).Conclusions Compared with general standard curve method,the new advanced standard curve method described here avoids an error which considers there is identical amplification efficiency between target gene and internal reference gene.It is considered to be a more correct analytical method in fluorescence real-time PCR.