Laboratory animal science has become a main support for the development of life science and has occupied an importance place in higher medical education.The paper analyzed the characteristics and problems of laboratory animal science and proposed the ideas of applying conformational memory teaching in laboratory animal science teaching from there aspects:teaching method,teaching frame and teaching effect.These measures established the foundation for the cultivation of applied talents with comprehensive competence.

OBJECTIVE:To study inhibitory effects of propofol on PC12 cells injury induced by glutamic acid via mitogen-acti-vated protein kinase/extra-cellular regulated kinase (MAPK/ERK) signal pathway. METHODS:PC12 cells were randomized into normal control group,model group(10 mmol/L glutamic acid),propofol low-concentrations,medium-concentrations and high-con-centrations groups(12.5,25,50 μmol/L+10 mmol/L glutamic acid). The optical density of cells,cell apoptosis,the phosphoryla-tion of ERK1/2 and the expression of c-fos,Bax,Bcl-2 were detected after treated with relevant medicine for 48 h. RESULTS:Compared with normal control group,optical density of cells,the phosphorylation of ERK1/2 and Bcl-2 decreased in model group (P<0.01);apoptotic rate,the expression of c-fos and Bax increased (P<0.01). Compared with model group,optical density of cells,the expression of Bcl-2 and the phosphorylation of ERK1/2 increased in propofol group (P<0.01);apoptosis rate,the ex-pression of c-fos and Bax decreased (P<0.05 or P<0.01). There were statistical significant between the different concentrations (P<0.01). CONCLUSIONS:Propofol can inhibit the apoptosis of PC12 cells induced by glutamic acid,which is associated with the up-regulation of ERK1/2 phosphorylation.

The aim of this article is to explore the dual-system of German geriatric nursing, curriculum of geriatric nursing, concept of major and evaluation mode, which could provide references and reflection for national geriatric nursing development.

Objective To evaluate the effect of dexmedetomidine on liver injury in the rats with ob?structive jaundice. Methods Forty?five healthy male Sprague Dawley rats, weighing 250-300 g, aged 8-9 weeks, were divided into 3 groups ( n=15 each) using a random number table: sham operation group ( S group) , obstructive jaundice group ( OJ group) and dexmedetomidine group ( D group) . Obstructive jaun?dice was induced in rats by division and double ligation of the common bile duct in OJ and D groups. Dexmedetomidine 100 μg∕kg was injected intraperitoneally at 72 h after establishment of the model in group D. At 3, 5 and 24 h after administration, blood samples were collected from hearts for determination of the plasma alanine aminotransferase (ALT) and C?reactive protein (CRP) levels. After blood sampling at each time point, the specimens from the external right lobe of the liver were obtained for detection of the expres?sion of Toll?like receptor 4 ( TLR4) mRNA ( by real?time polymerase chain reaction) and TLR4 content ( by enzyme?linked immunosorbent assay) in liver tissues and for pathological examination of liver tissues ( with light microscope) . Results Compared with group S, the plasma ALT and CRP levels were significantly increased at each time point after administration, and the expression of TLR4 mRNA in liver tissues was significantly up?regulated, and TLR4 content in liver tissues was significantly increased in OJ and D groups ( P<0?05) . Compared with group OJ, the plasma ALT and CRP levels were significantly decreased at each time point after administration, and the expression of TLR4 mRNA in liver tissues was significantly down?regulated, and TLR4 content in liver tissues was significantly decreased in group D ( P<0?05) . The degree of damage to liver tissues was significantly attenuated in group D compared with group OJ, and was aggrava?ted in group D compared with group S. Conclusion Dexmedetomidine can reduce liver injury in the rats with obstructive jaundice.

Randomized control study of gemfibrozil and pantethine was made in 39 NIDDM patients to compare their effect on anti-lipid-peroxidation.The patients were divided into two groups at random. One group took gcmfibrozil 900 mg/d for 4 weeks, the ether group took pantethine 540 mg/d for 4 weeks. The results showed that there were no significant change in faslirg plasma glucose and HbA1 in both groups before and after treatment. The effects on lipicls and lipcproteins in gemfi-barozil and pantethine groups were as follows: TC decreased by 18.15% and 8.75% (P

Objective To investigate the effect of 3‐dimensonal conformal radiotherapy (3D‐CRT ) combined with dendritic cell‐cytokine induced kill (DC‐CIK) cell in the treatment of recurrent small cell lung carcinoma (SCLC) in high altitude regions ,and its influence on VEGF and NSE .Methods Eighty‐five patients with recurrent SCLC in the tumor radiotherapy department of the Qinghai Provincial Fifth People′s Hospital from May 2012 to April 2014 were selected and divided into the control group(41 cases) and observation group(44 cases) according to the random number table .The two groups were respectively treated by 3D‐CRT treat‐ment and 3D‐CRT combined with DC‐CIK treatment cell .The curative effect ,incidence rate of adverse reactions ,levels of VEGF and NSE ,changes of liver and renal function indexes in the two groups were compared before and after treatment .Results The ef‐fective rate and sickness control rate of the observation group were 65 .9% and 79 .5% respectively ,which were higher than those in the control group ,and the differences were statistically significant (P<0 .05) .The levels of serum EGF and NSE ,and pain score at 4 ,8 weeks after treatment were decreased ,the differences were statistically significant (P<0 .05) .The levels of VEGF and NSE , and pain score at 8 weeks after treatment in the observation group were lower than those in the control group ,the differences were statistically significant(P<0 .05) .The incidence rate of adverse reactions in the two groups had no statistically significant differ‐ences after treatment(P>0 .05) .The levels of liver and renal function indexes had no statistically significant differences between before and after treatment(P>0 .05) .Conclusion 3D‐CRT combined with DC‐CIK cell in the treatment of recurrent SCLC in high altitude regions has more obvious curative effect ,moreover has no obvious influence on radiotherapeutic adverse reactions ,and liver and renal functions .

Tumor is a complex systemic disease, involving abnormalities at multiple levels, such as DNA, RNA, protein and metabolite. According to the central rule, the derived omics methods are genomics, transcriptomics, proteomics and metabonomics. In the past few decades, there have been remarkable achievements in the single omics study of tumor, but the exact mechanism of tumor development is still unclear. In order to reveal the process of tumorigenesis and development in a more systematic way, the research of multiomics came into being, which promoted the transformation of tumor research paradigm from single parameter model to multi parameter system model. The integration of multi-omics methods is expected to clarify the mechanism of tumor occurrence and development, find biomarkers with diagnostic, prognostic and predictive performance, explore new treatment targets, and finally achieve predictive, preventive, and personalized medicine (PPPM). This paper reviews the research methods and progress of different omics techniques in tumor research, especially emphasizes the importance and scientific value of the integration of multiple omics techniques in tumor research and clinical related results.

ObjectiveTo explore the characteristics of traditional Chinese medicine (TCM) syndrome differentiation in chronic complications of type 2 diabetes mellitus (DM).Methods124 patients with chronic complications of type 2 DM were scored by 5 grades according as the severities of their symptoms. There were 5 kinds of patterns such as deficiency of Qi, deficiency of Yin, deficiency of Yang, blood stasis and retention of phlegm and fluid by which the TCM syndrome differentiation was generalized.ResultsThe sequence of TCM patterns was deficiency of Yin, blood stasis, deficiency of Qi, deficiency of Yang and retention of phlegm and fluid, and the syndrome of the two formers were greater than 50%. The proportion of unity of deficient and excessive pattern was 80.5%. Three larger syndrome types were deficiency of both Yin and Yang combined with blood stasis (17.7%), Qi-Yin deficiency with blood stasis ( 16.9 %) and Yin deficiency with blood stasis (16.9%). There was a statistically significant difference in TCM syndromes which were divided into different groups by course of diseases (P<0.05). At onset of DM, the typical symptoms were less observed in the group whose course of disease was less than 5 years, and only 39.1% of patients had the typical symptoms. But at the same time, the prevalences of hypertension and hyperlipidemia were higher in this group than in the others, respectively 63.0% and 87.0%.ConclusionThe primary syndrome is unity of deficient and excessive pattern in chronic complications of type 2 DM and deficiency of Qi and blood stasis are the commonest patterns in course of DM.

Alkaloids ; Antineoplastic Agents, Phytogenic ; Chemical Phenomena ; Chemistry ; Harringtonines

ACEI,ACEII and Xyr1 are transcriptional factors that regulate cellulase gene expression in Trichoderma koningii.In vitro experiments have shown that ACEI and Xyr1 bind to the cbh1 promoter fragment(-304 to-18) and regulate the gene transcription.However,whether ACEII binds to this 287bp fragment is still unclear.To further elucidate the regulatory mechanism of ACEII for cellulase,DNA-binding domains of ACEII from T.Koningii were expressed in E.coli.It could not show binding to the cbh1 promoter fragment(-304 to-18) by electrophoresis mobility shift assays,suggesting that it is Xyr1 but not ACEII binds playing an essential role during induction of cbh1 gene transcription.