To explore the effects of artisense IRAK-2 oligonucleotide on the prostacyclin (PGI2) synthesis in human umbilicalvein endothelial cells (HUVEC) induced by interleukin-1 (IL-1) and tumor necrosis factor (TNF).Methods:The HUVECs were transfectedwith antisense interleulkin-1 receptor associated kinase-2 oligonucleotide (IRAK-20DN) and stimulated with IL-1 and TNF. The levels of PGI2release were analyzed by competitive ELISA. Results: Pre-transfection with antisense IRAK-20DN could remarkably decrease the levels ofPGI2 synthesis induced by IL-1 in time- and dose-dependent manner, whereas it could not attenuate the one stimulated by TNF. Conclusion:The response of antisense IRAK-2 ODN to IL-1 and TNF-stimulated PGI2 release were different. IRAK-2 plays a key role in the IL-1 signalingevents leading to PGI2 release.

BACKGROUND: Electrostatic layer-by-layer (LbL) self-assembly is a simple, effective and novel approach to carrying macromolecules into microcapsule carriers.OBJECTIVE: To prepare chitosan (CS) microcapsules to control the releasing of heparin (Hep) by LbL.METHODS: CS microspheres were fabricated by a sodium sulfate-based precipitation process and then used as positively charged templates for polyelectrolyte multilayer coatings to carry heparin by the LbL self-assembly technique. The polycation was CS and the polyanion was Hep. The microcapsule was formed via coating {CS/Hep}3 on CS hydrogel template. The microcapsules composed of {CS/ Hep}3 on CS hydrogel templates were confirmed by fluorescence inverted microscopy, confocal laser scanning microscopy and laser particle size analysis. The assembly of polyelectrolyte layers on CS hydrogel microspheres was monitored by Zeta Potential Analyzer.RESULTS AND CONCLUSION: The resulting microcapsules were about 1 μm in average diameter, and allowed spontaneous loading of heparin through electrostatic interaction, with the encapsulation efficiency and carrying capacity of 83.8% and 3.05%, respectively.

Objective To compare the clinical effect of radionuclide myocardial perfusion imaging(SPECT)and multilayer spiral CT coronary artery imaging(MSCT) in the diagnosis of coronsry artery disease(CHD).Methods The clinical data of 36 patients suspected with CHD and routine inspection of SPECT and MSCT were retrospectively analyzed.The diagnostic effects of two methods were compared.Results The sensitivity,specificity and the rate of accuracy of SPECT was 89.47％,94.12％,and 91.67％,respectively,while the sensitivity,specificity and the rate of accuracy of MSCT was 84.21％,94.12％,and 88.89％,respectively.There were no obvious difference in two groups (x2 =1.265,1.668,2.005,1.526,1.889,all P ＞ 0.05 ).Conclusion There was a high degree consistency on the diagnosis of CHD between SPECT and MSCT.In the application,combined with the two methods could improve the diagnosis of CHD.

Objective To describe the status and analyze the influencing factors of nurses' compassion fatigue and compassion satisfaction in a certain tertiary hospital,which may provide evidences for the emotional management of nurses by nursing managers.Methods A cross-sectional survey was used in this study and 246 nurses were recruited totally.They investigated about compassion fatigue and compassion satisfaction by questionnaires.Results The average score of nurses' compassion fatigue was (30.76± 5.61)points.The average score of nurses' compassion satisfaction was (25.68±4.12)points.There was a significant difference for nurses' compassion fatigue in various wards,and ICU nurses had the top score.There were no significant differences for nurses' compassion satisfaction.Conclusions The nurses' compassion fatigue and compassion satisfaction in this hospital was relatively moderate.ICU nurses' compassion fatigue score was higher than other wards.Education background,professional title,relationship with colleagues,extra work,support from leaders and family members,wards,education background and relationship with colleagues were the influencing factors of nurses' compassion satisfaction score.

Ischemic stroke is often triggered under the effect of the basic lesions combined with a variety of incentives in daily life. Its generative mechanism is complicated, and there are more risk factors. Only according to the long-term existence of chronic risk factors, it cannot make appropriate explanation for the acute onset of this disease. At present, there are a few studies on the predisposing factors of stroke, and its related mechanism needs to be further discussed. This article aims to introduce the relationship between the common predisposing factors and ischemic stroke, discusses its possible mechanism, and provides reference for the clinical prevention work of ischemic stroke.

The phenotype distribution of human red cell glyoxalase I of a Han population in Guangzhou area was studied using mixed starch/agarose gel electrophoresis. The phenotype frequencies were: GLOI 1-1 2.57％; GLOI 2-1 29.17％; and GLOI 2-2 68.26％. The gene frequencies were: GLOI~1 0.1716; GLOI~2 0,8284. The phenotyping of GLOI was carried out satisfactorily in 35 bloodstains kept in room temperature for 20 days in 7 bloodstains stored in 4℃ for 105 days exposed in sunshine for 8 hours, as well as kept outdoor overnight, and in 10 putrefactive bloodstains kept in room temperature for 9 days.The GLOI were destroyed in 6 of 7 bloodstains washed by runing water for 2 hours.

In the light of requirements of medical equipment simulation system, the overall framework of joint control system of medical equipment integrated support in the theater is designed in this paper. Such modules are developed with Delphi as communication module, module for equipment basic information, module for equipment video information and module for medical faculty information. A joint control system suiting integrated support simulation sand table for medical equipment is complteted,which provides a multidimensional informational platform for integrated demonstration of medical equipment.

Objective To study the relationship between the apolipoprotein B(apo B) gene polymorphism and mycoardial infarction.Methods Two polymorphic sites of the apo B gene,Xba1 and Msp1 were examined by PCR in a sample of 65 patients with myocardial infarction(MI) and 60 healthy individuals selected from a population of the chinese Han nationality.Results The frequency of X+allele(presence of Xba1 cutting site)in MI cases was significantly higher than that in controls(P

Objective To investigate two techniques and outcome in repairing facial concave deficits.Methods Eleven patients with facial concave deformity were included in this study:nine were treated with autologous fat granule injection,1,3 and 5 patients were given fat granules injection fourth,twice and once,respectivly.The other 2 patients were repaired with homolateral temporal fascia flap.Results The implantation by using autologous fat granules in all 9 patients showed excellent results.Homolateral temporal fascia flaps were used in 2 cases,one of which was formed hematoma after operation and scavenged thereafter.All the patients had satisfactory results.Conclusion Both approaches well rehabilitate patients' facial contour,and thus are capable of repairing moderate or minimal facial concave deficit and worth recommendation.

It puts forwards the hypothesis of disease curtailment efficacy,viewing that it may explain the TCM medication rule and the mechanism of TCM compatibility improving cure effect;taking gastric ulcer as pathological model,Lizhong Decoction as object,it makes split formula experiment to test its existence of disease curtailment effect,exposing the scientific and available hypothesis.