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 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: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 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 study the clinicopathological characteristies,differential diagnosis,etiological factor and treatment of anorectal malignant melanoma(AMM). Methods Clinical pathological characteristics and immunohistochemical findings were observed in 13 cases of anorectal malignant melanoma,with review of related literature.Results Average age was 55.8 years. And often occurred in the middle and old. Under microscope, the tumor was complicated constructionally, and the tumor cells were variform. Usually in tightly packed nests, dispersed sheet and trabecular, melanin pigment could be observed in the majority of AMM, but sometimes ameLanotic pigment was present. Immunohistochemiscal the tumor cells were positive for HMB 45, S-100 and vimetin. Conclnsion AMM is a high malignant tumor with very poor prognosis. So,it should be diagnosed and treated early. HMB 45 and S-100 are sensitive tumor markers for AMM.

Fecal specimens of 35 parasitologically confirmed cases of giardiasis, 41 acute, gastroenteritis, 23 acute baciUary dysentery, 40 normal persons and 15 jirds experimentally infected with G. lamblia were tested with conterimmunoelectrophoresis (CIE). It was found that 33(94%) out of the 35 giardiasis patients and 14(93%) out of 15 infected jirds showed positive reaction, while fecal specimens of other cases, normal persons, or normal jirds all showed negative reaction. Besides, CIE was performed in 4 giardiasis patients before and after metronidazole treatment. Prior to metronidazole, they were all CIE positive, one day post metronidazole, 3 of them were still CIE positive, and Giardia cysts or trophozoites were also present in their stools. However, from the second day onwards, all of them became CIE negative, while cysts or trophozoites also disappeared from their stools. Apparently, detecting Giardia antigen in fecal specimens with CIE of feces is not only a sensitive tool for detecting current infection, but also a, useful tool for evaluating therapeutic effects in giardiasis.

Objective To observe the therapeutic role on monoclonal antibody of alkaline phosphatase(AAP) to vasogenic cerebral edema in rats(VCE).Methods 60 Wistar rats were randomly divided into 3 groups:normal group,VCE group and AAP group.VCE animal model was made by injecting AAP.Brain water content of gray and white matter were measured by Moistrue Analyzer respectively.The permeability of the blood brain barrier (BBB) was determined by Evan's blue(EB) extravasation.Results The brain water content of gray and white matter in AAP group was reduced markedly,so the permeability of BBB was reduced(P0.05). Conclusion AAP can treat VCE well. Morbidity mechanism of VCE is related to the activity of alkaline phosphatase.

Epidemiological and pathological evidence has demonstrated that adverse in utero environment,such as protein restriction,hypercholesterolemia,diabetes and smoking,can increase the risk of vascular disease in the offspring.In utero,the placenta and fetus are exposed to the metabolic,antioxidant and pro-inflammatory and anti-inflammatory signals from the mother and likely to make specific responses,which may lead to permanent changes either in DNA methylation or chromatin modification or both,and these changes,in turn,may result in increased atherosclerosis susceptibility in adulthood.In this review,we briefly summarize the possible signals crossing the placental barrier and discuss the molecular mechanisms of epigenetic programming in the developing fetus that may lead to increased athero-susceptibility of the vessel wall.

This paper outlines briefly the role of nuclear medicine in life sciences and health care.Molecular imaging by using isotopic tracers can noninvasively visualize the chemistry or hidden process in the cells and tissues inside the body,obtaining "functional" images to provide early information of any disease and revealing the secrets of life.The vitality of nuclear medicine is its ability to translate bench into new clinical application that can benefit the patients.Although nuclear medicine community in China has made significant achievement with a great effort since 1950s,there are many obstacles to future development.Recommended measures are proposed here in an attempt to solve our existing problems.