It is one of the common problems faced by many medical schools how to carry out the hidden curriculum in humanities education of medical education.This article approaches the composition and connotation of the curriculum in order to improve the relevance and effectiveness of the humanities education of medical education

Adolescent ; Atherosclerosis ; drug therapy ; etiology ; prevention & control ; therapy ; Child ; Humans ; Hyperlipidemias ; complications ; prevention & control ; therapy ; Hypolipidemic Agents ; therapeutic use ; Life Style ; Obesity ; complications ; prevention & control ; Primary Prevention ; Risk Factors

Objective Response surface methodology ( RSM ) was applied to optimize the ultrasonic extraction conditions for flavonoids from Coreopsis tinctoria Nutt. Methods The influence factors of ultrasonic extraction were evaluated using the Box-Behnken central component experiments and analyzed by RSM. Results The optimum extraction conditions were confirmed as follows:extraction time 30. 0 min, ratio of liquid to solid 21∶1, concentration of ethanol 60%. The yield of flavonoids under this condition was (4.65±0.036)% (n=3). Conclusion The flavonoids could be extracted with stability and higher yield from Coreopsis tinctoria Nutt under optimized conditions.

Objective To establish a novel Monte Carlo simulation method for reconstruction of medical accelerator model and X?ray energy spectrum based on IAEA Varian 6 MV X?ray phase?space file and photon energy spectrum of the target accelerator. Methods The verified 6 MV X?ray phase?space files were preprocessed to elevate the energy of each particle. Particles were saved in different Phase?Space?Let ( PSL) files according to their position and energy, yielding an initial photon energy spectrum for Monte Carlo simulation of accelerator under an initial target energy. The initial photon energy spectrum was fit to a photon energy spectrum of an accelerator ( Elekta Precise 10 MV X?ray accelerator) under an unknown target energy to yield a fitting coefficient, which was the weight of each PSL. Finally, an accelerator model under an unknown target energy was reconstructed using the initial PSL files and the weight information. The percentage depth dose ( PDD) distribution was calculated in different square open fields. The effectiveness of this method was verified using one dimensional gamma passing rate. Results The peak position and overall distribution of the reconstructed 10 MV photon energy spectrum were in accordance with those of the verified 10 MV photon energy spectrum. The PDD calculated from the reconstructed 10 MV accelerator model agreed well with the measured PDD. The one?dimensional gamma passing rate was above 96%( 1%/1 mm, threshold=0%) . Conclusion The Monte Carlo reconstruction method proposed in this study is reliable, accurate, and effective.

Amino Acid Metabolism, Inborn Errors ; blood ; diagnosis ; Humans ; Infant, Newborn ; Male

Objective To look for and confirm the downstream regulated gene of microRNA (miRNA)-148a in pancreatic cancer cell line.Methods The target gene regulated by miRNA-148a was predicted through bio-informatics analysis.The plasmid containing desired gene and with luciferase 3'-untranslated region (3'-UTR) reporter was constructed.Pancreatic cancer cells BXPC-3 were transfected with analogs and inhibitors of miRNA-148a by liposomes.The activity of luciferase was measured to determine whether miRNA-148a directly connected with desired gene.The expression level of miRNA-148a was changed in BXPC-3 cells,and the changes of target gene v-verb-b2 erythroblastic leukemia viral oncogene homolog 3 (awian) (ErbB3) expression were detected by Western blot at protein level.The data were analyzed by one way ANOVA.Results There was a conservative binding site of ErbB3 with miRNA-148a detected by bio-informatics analysis,miRNA-148a directly combined with ErbB3 and the activity of luciferase decreased to (25.00+47.00) ％ of the negative control (F=4.66,P＜ 0.01).After miRNA-148a overexpression,the gray value of ErbB3 expression in BXPC-3 cells decreased to (26.16±4.69)％ of control group (F=6.563,P＜0.05).Conclusion miRNA-148a directly targeted and regulated the expression of ErbB3 in pancreatic cancer cell line BXPC-3.

Objective To investigate the effects of metformin on blood glucose control and body weight management in over-weight patients with newly diagnosed type 2 diabetes mellitus (T2DM).Methods A retrospective study was performed in T2DM patients who were treated with metaformin (male 38,female 23,mean age (50.8 ± 7.9) years old).Based on body mass index (BMI),all the participants were assigned to obese,over-weight and normal weight group.Analysis of variance and multivariate analysis were used to confirm the effects of metformin on blood glucose and body weight.Results Fasting blood glucose (FBG),HbA1 c and BMI were significantly reduced over 2 years.In comparison with baseline,BMI of the obesity and overweight group was significantly decreased during follow up (P ＜ 0.05),while BMI of the normal weight group increased by 0.7 kg/m2.At baseline,FBS and HbAlc of the obese group were lower than those of the normal weight group (FBS (7.3 ± 0.8) vs.(11.8 ± 4.8) mmol/L,P ＜ 0.05 ; HbA1 c (6.8 ± 1.2) ％ vs.(8.5 ±3.1)％,P ＜0.05),whereas insulin level was higher than that of the normal weight group ((2.20 ± 0.36) vs.(1.87 ± 0.29) U,P ＜ 0.05).At 2 years,HbA1 c was reduced on average by 2.5％,1.4％ and 1.9％ in the obesity,over-weight and normal weight group,respectively.Conclusions The present study demonstrates the beneficial effect of metformin on newly diagnosed diabetics,especially obese patients.

Objective To dosimetrically compare three delivery techniques of VMAT,IMRT and 3D-CRT in the treatment of accelerated partial breast irradiation (APBI).Methods Twenty patients with T1/2N0M0breast cancer were treated with VMAT.These cases were subsequently re-planned using static gantry IMRT and 3D-CRT technology to evaluate dosimetric differences.Dosimetric parameters including dose conformity index (CI),dose volume histogram (DVH) analysis of normal tissue coverage,dose parameters of PTV and normal tissues were evaluated,the delivery parameters including MU and delivery time were also analyzed.Results The IMRT and VMAT plans provided lower maximum dose,better mean dose and more conformal target dose distributions than the 3D-CRT plans (F =14.86,8.57,18.23,P ＜0.05).The volume of ipsilateral breast receiving 5 Gy for VMAT technique was significantly less than that of3D-CRTor IMRT(F=5.83,P＜0.05).The ipsilateral lung volume receiving 20 Gy (V20),5 Gy(V5) and the 5％ volume dose (D5) of IMRT were superior to those of 3D-CRT and VMAT(F =16.39,3.62,4.81,P ＜ 0.05).The low volume dose distributions of D5 in contralateral lung for IMRT was better than that of VMAT and 3D-CRT(F =3.99,3.43,P ＜ 0.05).The total mean MUs for VMAT,3D-CRT and IMRT were 621.0 ± 111.9,707.3 ± 130.9 and 1161.4 ± 315.6,respectively (F =31.30,P ＜ 0.05).The average machine delivery time was(1.5 ± 0.2)min for the VMAT plans,(7.0 ± 1.6)min for the 3D-CRT plans and (11.5 ± 1.9)min for the IMRT plans.Conclusions VMAT and IMRT techniques offer improved dose conformity as compared with 3D-CRT techniques without increasing dose to the ipsilateral lung.In terms of MU and delivery time,VMAT is more efficient for APBI than conventional 3D-CRT and static beam IMRT.

This paper was aimed to study the genetic diversity and genetic relationship of germplasm resource of Lonicerae Japonicae Flos in order to provide references for its breeding. A total of 36 samples from 18 farm varieties and wild species, as well as related species of Lonicera japonica Thunb. from the main production areas were studied by ISSR-PCR markers. The Jaccard coefficient was worked out by NTSYS-pc software. And a cluster dendrogram of different samples was established based on unweighted pair-group method with arithmetic mean (UPGMA). The re-sults showed that 12 ISSR primers generated 129 loci of which 114 loci were polymorphic. The average percentage of polymorphic bands (PPB) is 88.37%. In the cluster dendrogram, different samples of Lonicera japonica are in the same group, which showed that it is a natural species; the wild sample is separated from the cultivated samples; the traditional type-Maohua is relative stable, but the type of Jizhuahua includes complicated varieties, and it has obvi-ous genetic variation; the new variety Jiufeng 1 has already distinct into one stable type. It was concluded that the ISSR method was suitable for germplasm identification, genetic diversity analysis of Lonicerae Japonicae Flos, thus providing a theoretical foundation for its cultivation and breeding.

Objective To evaluate the application effect of‘incorrect cases’in medical statis-tics teaching. Methods The junior students (n=307)of clinical medicine were selected as research subjects by random cluster sampling. They were divided into the teaching improving group (n=151) who accepted case teaching and control group (n=156)who accepted traditional teaching. At the end of the term,the teaching effect was surveyed by questionnaires and compared between the two groups. Measurement data was analyzed by t test,enumeration data by χ2 test and ranked data by rank sum test. Results Students' interests of medical statistics and understanding the importance of the course in teaching improving group were significantly higher than that in control group (Z=-2.375,P=0.018;Z=-2.971,P=0.003). The proportion of students with learning difficulties in teaching improving group was obviously lower than that in control group (Z=-2.488,P=0.013). The satisfaction with theory and practical teaching in teaching improving group (84.10% and 88.74%,respectively)was significantly higher that in control group (73.08%and 71.79%,respectively)(χ2=5.530,P=0.013;χ2=13.841,P<0.001). Although no difference was observed in the test score between the two groups (t=1.230,P=0.220),knowledge of parameter estimation,hypothesis testing and science research design in teach-ing improving group was significantly higher than that in control group (χ2=6.829,P=0.009;χ2=5.835, P=0.016). Conclusions Application of ‘incorrect cases’in medical statistics teaching could arouse students' learning interests and improve clinical medical students' comprehensive analy sis ability of medical statistics.