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 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.

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 evaluate the clinical application and safety of CT-guided transthoracic cutting needle lung biopsy in diagnosing diffuse lung diseases. Methods By using automatic biopsy gun (14 & 16 gauge), CT-guided transthoracic cutting needle lung biopsy was performed in 29 cases with diffuse lung diseases. The samples obtained were sent for pathological and immunohistochemical examination. The sampling successful rate, the diagnostic accuracy and the occurrence of complications were analyzed. Results Technical success rate was 100%, and large size of sample enough for pathological and immunohistochemical examination was obtained in all 29 cases. Definite pathological diagnosis could be made in 25 cases, with the positive diagnostic rate of 82.8%. The main complications included pneumothorax and pulmonary hemorrhage. The symptoms in most cases were not severe and disappeared within one week after the treatment. Conclusion For the diagnosis of diffuse lung diseases, CT-guided transthoracic cutting needle lung biopsy is a safe, easy, effective and reliable method with high successful rate, high diagnostic value and fewer complications, in these respects this technique is superior to transbronchial lung biopsy, open lung biopsy and video-assisted thoracoscopic lung biopsy. Therefore, this technique should be popularized in clinical practice.

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.

20% increase in serum creatinine over the last 6 months or progression to the range of 176-308?mol/L.Patients underwent abrupt cessation of cyelosporine and sirolimus maintenance at 1-2 rag/day after administration of 4-6 mg as first loading dose.Concomitant immunosuppression remained unchanged during conversion.Results Targeted sirolimus level was 4-8 ng/mL.Serum creatinine was dropped from pre-conversion level of(242.15?73.04)?mol/L to(188.32?58.96)?mol/L and (173.36?58.08)?mol/L at 3rd and 6th month respectively(P

Dendritic cells (DCs) are uniquely well-equipped antigen (Ag)-presenting cells. This function of DCs, coupled with their remarkable plasticity, renders them attractive therapeutic targets for immune modulation. Recent data have demonstrated a promising role for pharmacologic treatment as a means of generating potent regulatory DCs. Herein, the evidence that the potential of regulatory DC the-rapy is considerable and that there are compelling reasons to evaluate it in the setting of organ transplantation in the near future are discussed in this paper.

Objective To establish adult rat auditory epithelial cell culture and try to find precursor cells of auditory hair cells in vitro. Methods With refinement of culture media and techniques, cochlear sensory epithelial cells of adult rat were cultured. Immunocytochemistry and Bromodeoxyuridine (BrdU)labeling were used to detect properties and mitotic status of cultured cells. Results The cultured auditory epithelial cells showed a large, flat epithelial morphotype and expressed F-actin and cytokeratin, a subset of cells generated from auditory epithelium were labeled by calretinin, a specific marker of early hair cell. Conclusion Adult rat auditory epithelium can be induced to generate hair cell-like cells by nature culture, this phenomenon suggests that progenitor cells may exist in rat cochlea and they may give birth to new hair cells. Whether these progenitor cells are tissue specific stem cells is still need more study.

Objective: To explore the mechanism of high incidence of cardiovascular diseases and the levels of plasma lipids and oxidized lowdensity lipoprotein(Ox-LDL) in patients with rheumatoid arthritis(RA).Methods: Fifty-five patients with RA(24 case of active type,31 non-active) and 60 healthy controls were randomly chosen.Plasma lipids and Ox-LDL levels were studied.All the data were subjected to statistical analysis.Results: Compared with the control,total cholesterol(TC),LDL cholesterol(LDL-C) and apolipoprotein B(apoB) levels were increased in patients with active RA,while TC,triglyceride(TG),LDL-C,apoAⅠ,B and Ox-LDL levels were elevated in those with non-active RA.Furthermore,plasma lipids and Ox-LDL level decreased in the active patients as compared with the non-active ones,while only the change of apoAⅠhad statistical significance.The erythrocyte sedimentation rate was found negatively related with TC,LDL-C,high-density lipoprotein cholesterol(HDL-C) and apoAⅠ,while C-reacting protein was found negatively related with LDL-C and HDL-C.Conclusion: Ox-LDL and plasma lipid levels were changed in RA patients.Inflammation may induce changes of lipoprotein and play an important role in atherosclerosis.