Objective:To investigate the expression and postmortem stability of HSP70 in hippocampus of hemorrhagic shock rat.Methods:105 healthy SD rats were randomly divided into 5 groups:normal group,sham operation group,hemorrhagic shock group,traumatic control group and postmortem stability group.In hemorrhagic shock group and postmortem stability group,rats were submitted by controlled bleeding,with the mean arterial pressure kept around 40mmHg.And in traumatic group,brain contusion was induced by piston impact.After that,the regulation of HSP70 expression in hippocampus of each group was detected by immunohistochemistry technique,and evaluated with image analysis technique and statistic system.Results:One hour after hemorrhagic shock,HSP70 expression in hippocampus was significantly higher in each shock subgroups compared with that in normal group and sham group(P0.05).Conclusion:HSP70 is specifically expressed in hippocampus of hemorrhagic shock rat,and showed nice postmortem stability under the environment of -20℃.

Safety is a critical link restricting the development of TCM injections.Hospital centralized monitoring is of importance in the safety evaluation of TCM injections.However,the results of centralized monitoring studies usually deviated from the actual situation because of problems in design and process quality.Our research team have completed several projects over centralized monitoring in recent years.Based on the previous research experience,this paper mainly discussed the current statuation,the significance and methods for standard process of hospital centralized monitoring in regard to TCM injections,in order to improve the quality of centralized monitoring studies and provide technique support for recognizing the safety of TCM injections.

Objectives: To investigate the effects of cent ra l disordered occlusion on the thickness of TMJ disc. Methods:The thickness of temporomandibular joint disc was measured in 5 cadavers with centr al disordered occlusion, including secondary malocclusion caused by loss of post erior tooth for a comparable long time with collapse of neighbor teeth and supra -eruption of its antagonized tooth, the supra-erupted third molar resulted fro m lack of antagonized tooth for a comparable long time and individual posterior tooth cross bite or reverse cross bite asymmetrically. Other 7 cadavers without central disordered occlusion served as controls. All samples were examined histo logically for the TMJ disc thickness. Out of 18 New Zealand rabbits, aged 5 mont hs, 9 were treated orthodontically to pull the first premolar move medially, occ luding with its opposite un-coincidently, central disordered occlusion was grad ually induced. The other 9 rabbits served as blank controls. The TMJs were sampl ed 3 months after beginning of the experiments, stained with HE and observed und er microscope. Results: In both cadavers and animals, the TMJ di sc was found much thicker in central disordered occlusion group than that in the control group (P

OBJECTIVE:To optimize kind of safe and effective iodophor thinner.METHODS:Iodophor solutions in several different solvents were made and diluted 5,10 and 20 times,respectively.Then their microbicidal potentials on 3 standard strains were monitored.RESULTS:The standard strains were all killed within 5 min by iodophor solution in normal sodium or by low multiple diluted iodophor solution in distilled water;however,there were a few Escherichia coli and Pseudomonas aeruginosa still alive within 5 min in high multiple diluted iodophor solution in distilled water.Iodophor solution in tap water failed to kill all the standard strains,especially the Pseudomonas aeruginosa.CONCLUSION:Normal saline solution and distilled water have been proved to be the ideal iodophor thinners.

Objective To study the risk factors influencing the prognosis in the children patients with acute gastrointestinal dysfunction and to seek their therapeutic measures. Methods The clinical data of 125 cases patients with acute gastrointestinal dysfunction were retrospectively analyzed. The risk factors possibly influencing the prognosis were analyzed by multivariate statistical Logistic analysis. Results Among 125 children patients, 61 cases died, and the mortality rate was 48.8%. Logistic regression analysis indicated that poor circulation, cardiovascular system failure, hepatic failure, brain failure were significant risk factors of death associated with acute gastrointestinal dysfunction. (OR = 4.156, 3.330, 6.903, P<0.05 or<0.01). Conclusions Poor circulation, cardiovascular system failure, hepatic failure and brain failure are significant risk factors of death associated with acute gastrointestinal dysfunction.

OBJECTIVE:To fathom the overseas research method for the evaluation of pharmacoeconomics and to improve the development of pharmacoeconomics in China and provide scientific bases for clinical rational use of medicine.METHODS:The research paper abroad introducing the latest therapeutic scheme for breast cancer was taken as an example to expound the method of applying Markov model in the evaluation of pharmacoeconomics.RESULTS & CONCLUSION:Drawing useful experience from abroad about the analytical method and using decision analytic model for the study of pharmacoeconomics are conducive to the development of pharmacoeconomics in China.

Objective:To explore the role of lectin-like oxidized low density lipoprotein (ox-LDL) receptor(LOX1) in ox-LDL stimulating endothelial nitric oxide(NO) production. Methods: LOX1 mRNA expression was detected by reverse transcription-polymerase chain reaction(RT-PCR). The quantity of NO was detected by Enzyme-method. Results: Incubation of ox-LDL increased endothelial NO production and LOX1 mRNA expression. When HUVECs were incubated with ox-LDL as well as the inhibitor of LOX1, polyinosinic acid,the increase of NO production and LOX1mRNA expression were attenuated. Conclusion: Ox-LDL enhanced endothelial NO production in a concentration-dependent manner, and the effect of ox-LDL on endothelial NO was mediated by LOX1.

According to the related requirements of safety reevaluation of TCM injections,hospital centralized monitoring of the safety of TCM injection was consecutively pressed ahead.Centralized security monitoring was a large-scale real world research involving numerous data acquisition,transmission,verification and analysis.The quality of data acquisition and data verification directly affected the authenticity and reliability of research data and results.Therefore,data management played a significant role in the safety monitoring of TCM injections.Based on the analysis of previous researches,this paper discussed the implementation content,links and the frequent problems and corresponding solutions of data management during the safety monitoring of TCM injections,combining with the experience in the implementation of projects.

The implementation process management plays a important role for the quality of centralized safety monitoring study of post-marketing Chinese medical injections.One of the critical link is hospital.Currently,there is no principle or specification for hospital choosing,number of monitoring points,data collection responsible part and forms of data collection as well.These issues caused uneven quality,huge differences in results and questioned conclusion.Based on the previous research experience,this paper focused on discussing the link of hospital where research data may be influenced,and proposed some suggestions.

Objective To investigate the expression of GFAP in rat hypothalamus after acute heat stress. Methods The rats were caged in a experimental incubator for 60 minutes,the temperature within the incubator was adjusted to 24℃,34℃,38.5℃ or 42℃,the humidity was 60%.Single anti-GFAP immunohistochemical(ABC) method and anti-Fos and GFAP double immunohistochemical method were used to observe the expression of GFAP in hypothalamus in different ambient temperatures after heat stress. Results The GFAP-positive cells were rare in hypothalamus at 24℃,however it was increased in many nuclei(anterior hypothalamic area,paraventricular nucleus,arcuate nucleus,suprachiasmatic nucleus and supraoptic nucleus)at 34℃ and peaked when ambient temperature was 38.5℃,and then decreased.However,Fos/GFAP-IR double labelled astrocytes were observed at 42℃.Conclusion Astrocytes participate in the pathophysiological process of heat stress.