Objective To investigate the effects of seven halothane and propofol anesthesia on heart rate and myocardial enzymes in elderly patients with coronary heart disease (CHD), and to analyze the safety of clinical application of the two kinds of anesthetic drugs.MethodsA total of 70 cases of elderly patients with coronary heart disease treatment January 2012 to December 2014 general anesthesia surgery as the research object, randomly divided into A group and B group were 35 patients in.A group were treated with seven sevoflurane anesthesia, group B patients were given propofol anesthesia, observe the change of the two groups of patients before and after anesthesia hemodynamic index and myocardial enzyme etc.index.ResultsA group of patients with HR 5min after induction and 10min were significantly lower than before the surgery, and the difference was statistically significant (P<0.05);HR stabilized after the induction of 15min and 20min, and compared with before surgery had no significant difference;patients in group B HR and 10min 5min after induction there was no obvious change compared with that before operation, no statistical significance;and after the induction of 15min and 20min HR increased, the difference was statistically significant (P<0.05).A group and B group in patients with systolic and diastolic blood pressure were lower than before anesthesia in varying degrees, and group B more significantly, the difference was statistically significant (P<0.05).A group and B group of patients after 6 h, cTnl and CK-MB in 12h and 24h than 15min before surgery has increased significantly, and A group cTnl and CK-MB were lower than B group, the difference was statistically significant (P<0.05).ConclusionThe clinical application of seven sevoflurane anesthesia for elderly patients with coronary heart disease during propofol is feasible, but seven halothane on blood pressure and heart rate of patients affected with propofol, improve the myocardial enzyme level, and better reduce the damage of perioperative myocardial, more suitable for anesthesia in elderly coronary heart disease.

Objective:To establish a stable and effective system of mouse embryonic fibroblasts(MEFs) feeder layer in order to separate and culture mouse embryonic stem cells(ESC) in vitro.Methods:the MEFs were isolated from the mouse embryos at 13.5~14.5dpc(days post-coitus) through primary tissue digestion and tissue piece culture.The optional planting density of cell was determined according to the cellular growth curve detected by MTT and the morphology in the culture dish under inverted microscope.The optional concentration of mitomycin C and the time treating with mitomycin on MEFs were determined by MTT assay.Murine blastcysts(3.5dpc) were cultured on the feeder layer treated by mitomycin C and ESC growth was observed.Result:The method of tissue digestion and tissue piece culture is an efficient way to obtain primary MEFs;1?105~2?105/ml cells is an optional planting density;MEFs proliferation could be effeciently repressed after being treated with mitomycin C 10?g/ml for 3.5 hours or 20?g/ml for 2.5 hours,and the quantity of MEFs could maintain at least for 7 days.ES clone could be obtained from the mouse blastcysts(3.5dpc) after being cultured on the feeder layer.Conclusion:MEFs feeder layer could effectively support mouse embryonic stem cells to grow.

Objective:To explore the effect of TSPG (total saponins of panax ginseng) on gene expression of IL-3 which is one of the important hematopoietic growth factor at early stage of hematopoiesis.Methods:Techniques of RT-PCR and in situ hybridization were used.Results:A band corresponding to IL-3 was observed after RNA extraction from TSPG stimulated Jurkat cells were subjected to RT-PCR,while such band was not observed after RNA extraction from unstimulated Jurkat cells were subjected to RT-PCR.Comparing with the control group,both quantity and intensity of IL-3mRNA expression in fetus thymocytes and splenocytes induced by TSPG were obviously promoted.Conclusion:TSPG can induce human lymphocytes to express IL-3 mRNA,thus promote human hematopoiesis at early stage.

Objective Panax ginseng is a well-known Chinese traditional medicine functional in “invigorating qi”,and saponins are one of its main effective fractions.Our study investigates the effect of total saponins of panax ginseng(TSPG)on human hematopoiesis at early stage and its possible regulative mechanism to clarify the hematonic mechanism of Panax ginseng. Methods The techniques of culturing hematopoietic progenitor cells in vitro,bioassay of hematopoietic growth factor(HGF),immunocytochemistry and nucleic acid in situ hybridization were used to study the effect of TSPG on IL-3’s expression in hematopoietic stromal cell and its possible mechanism. Results TSPG directly added into culture system in vitro can markedly increase the colony forming yields of CFU-Mix;the different conditioned culture media prepared with TSPG can promote the proliferation and differentiation of CFU-Mix;the protein and mRNA expression of IL-3 in BMSC and cells of EcV304,THP induced by TSPG has been much intensified.Conclusion TSPG may regulate hematopoiesis at early stage by activating IL-3's gene expression in hematopoietic stromal cell,which is the most important element in hematopietic inductive microenvironment(HIM).

PBL teaching method can cultivate students’ ability to analyze the existing problems, find out more problems and resolve the problems finally, and it is important to improve students’ comprehensive quality. The experimental teaching innovation of Histology and Embryology is summarized in this article, which turned induction, practice and examination, the three stages of experimental teaching into" Problem-Based learning", thus making the teaching effect much better.

Objective To analyze the subject frequency and score proportion of the national unified examination papers of Nursing Research according to the topic content,in order to offer proposals for the reformation and optimization of the examination,and provide self-test-takers with references of improving learning methods and results.Methods The papers of the subject of Nursing Research during October 2008 to January 2013 had been statistically analyzed following the syllabus.Results Comprehensive coverage of knowledge point existed in the papers of the recent five years.The theme of measurement of research tools (5.8％) and basic procedures of nursing research (7.0％) took a smaller proportion compared with nursing research design (16.0％) and nursing papers writing(16.3％).Conclusions The contents of the 10 papers of the past 5 years concentrate high attentions and emphasis on the comprehension and application of the basic theory and methods,which accord with the goals and requirements of this subject in the training of the research ability.

BACKGROUND:Internal fixation has become the first choice for the treatment of intertrochanteric fractures. However, the methods and materials for internal fixation are various. Which one has the best clinical efficacy?
OBJECTIVE:To compare the effects of proximal femoral nail and total hip arthroplasty for the treatment of intertrochanteric fractures.
METHODS:A total of 46 patients with intertrochanteric fractures were voluntarily divided into two groups:proximal femoral nail and total hip arthroplasty. Operation time, intraoperative blood loss, and Harris scores were compared between the two groups, and X-ray examination was used for assessment of clinical efficacy in the two groups.
RESULTS AND CONCLUSION:Total y 46 patients were fol owed-up for 3 to 12 months. Fractures in al the patients were healed. As compared with the total hip arthroplasty group, in the proximal femoral nail group, approach incision was smal er, blood loss was higher, operation time and fracture healing time were longer, and Harris score was lower (P<0.05). These findings indicate that the total hip arthroplasty is better than proximal femoral nail for intertrochanteric fractures, with less invasion and blood loss. However, the long-term effects need further studies.

Progressive assessment is one of the methods adopted by colleges and universities to evaluate the comprehensive quality of undergraduates.It can provide objective references for various awards and selections.Most colleges used static and transverse methods; based on these methods,advantages and disadvantages of individual undergraduates were compared with general groups,but feedback and forecast functions of assessment can not be realized.Therefore it is necessary to transform our conceptions and practice progressive assessment on comprehensive quality of undergraduates.We can learn from the relevant conceptions and methods in enterprise management and use data envelopment analysis to exclude the influence of different basic conditions of undergraduates.These undertakings are of great importance to truly reflect undergraduates' effective progress degree,guide them to test and evaluate themselves correctly and to advance comprehensive quality continuously.

Congenital cystic lung lesions are a group of congenital lung diseases with low incidence. These include congenital cystic adenomatoid malformation,bronchogenic cyst,congenital lobar emphysema and pulmonary sequestration. These malformations occur during the period of lung development stimulated by various factors. Manifestations of the diseases are very similar,but the pathogenesis and pathology are very different. Congenital cystic adenomatoid malformations are thought to be the results of the cessation of bronchiolar maturation with overgrowth of mesenchymal elements and without development of alveoli. There are 5 pathological types of congenital cystic adenomatoid malformations. Bronchogenic cysts are the results of abnormal budding from a segment of the tracheobronchial tree during embryo development,and the buds with no communication with normal tracheobronchial tree. Congenital lobar emphysema is a term reserved for hyperinflation of alveoli from idiopathic reasons or extrinsic compression,as well as pathological changes of the bronchial wall. Pulmonary sequestrations account for parts of nonfunctioning lung tissue that mostly do not communicate with normal bronchoalveolar tree and vascularized by a systemic artery,two types(intralobar and extralobar sequestration)are described.

Multi-drug resistance (MDR) of breast cancer is a key factor of breast cancer treatment failure.MicroRNA (miRNA) is a class of endogenous expressed,small,single-stranded RNA molecules,and regulate the expression of genes at post-transcriptional level by combining with target message RNA.MiRNA participate in the mechanisms of drug resistance of breast cancer,and are feasible therapeutic targets for the treatment of drug resistance in breast cancer.Finding and studying miRNA related with drug resistance of breast cancer as well as their mechanisms have become a current research hotspot.