Objective To investigate leukotriene B4 secretion from DC and expression of its receptor,BLT(LTB1,LTB2).Methods Bone marrow(BM)-derived DC from healthy Balb/c mice were incubated with rmGS-CSF and rmIL-4,and then stimulated with LPS.Light microscopy and flow cytometry were used to identify DC,ELISA and RT-PCR methods were used to detect LTB4 secretion in culture supernatant and mRNA expression of BLT(BLT1,BLT2) in immaturation and mature DC,respectively.Results LTB4 concentration was(10.667?(2.394)ng/L)、(7.089?(1.810) ng/L)、(3.222?(0.995)ng/L) and(14.217?(3.396)ng/L) in 2,4 and(6 d)(immaturation) and(8 d) (maturation) respectively.LTB4 level decreased progressively during DC differentiation.LTB4 level in mature DC was higher than that in immature DC(P

Objective:To investigate the expression of E2F3 mRNA in bladder urothelial carcinoma and normal bladder urothelial tussue to explore its relationship with the genesis and progression of bladder urothelial carcinoma.Methods:The expression of E2F3 mRNA in 34 cases of bladder urothelial carcinoma and 19 cases of normal bladder urothelial tussue was examined by RT-PCR.Result:The positivity rates of E2F3 mRNA in bladder urothelial carcinomas and normal bladder urothelial tussues were 47.1%(16/34) and 0%(0/19) respectively.The expression level of E2F3 mRNA in bladder urothelial carcinomas was significantly higher than that in normal bladder urothelial tussues(P

Objective:To investigate the relationship between TGF-?1 and the contents of IL-6 and IL-8 in peripheral blood after the penetrating keratoplasty in rat.Methods:Rat model of penetrating keratoplasty was established.ELISA assay was used to detect the contents of IL-6 and IL-8 in the peripheral blood at the first week,second week,third week,and fourth week postoperatively.Results:Compare with the control groups and self groups,the expression level of IL-6 and IL-8 in all experimental groups markedly decreased at different periods postoperatively(P

To study the dynamic relationship of total health expenditure and economic growth so as to provide references for designing health economic policies. Methods: Using the regression models with multiple structural changes to estimate the structural change point of model parameter. Results: Compared to the elastic coefficient of economic growth, the total health expenditure and social health expenditure remained stably, the elasticity coefficient of government spending on health increased after decreased while elastic coefficient of personal spending health costs decreased after increased. Conclusion:In the early years of 1990s, the responsibility of government in health care financing funding weakened, which led to the increasing personal expenses. The situation began to reverse since 2004.

As is well known, MicroRNA is one of the keys of regulating cell differentiation and metabolism, even body growth and development.In these few years, great progresses of MicroRNA have been made in lung development and the progressive mechanism of lung disease as well as the diagnosis and treat of lung disease such as lung cancer and chronic obstructive pulmonary disease.This review summarizes the latest progresses in the domain of MicroRNA about lung disease.

In recent years, many studies have claimed that the intrauterine infection is one of the most common causes of cerebral palsy. Cerebral palsy is associated with the brain injury directly or indirectly. With the direct mechanisms including breakdown of infected nerve cells of the mouse by intrauterine infection,hydrocephalus, dilation of the cerebral ventricles and ependymitis being illuminated uninterruptedly, researches of the indirect mechanism in cerebral palsy caused by intrauterine infection become the hot issue in the domain.Besides the inflammation mediators theory and down-regulated expression of development of the nervous system related factors, there were still several important elements which can cause brain damage such as placental excretive hormone imbalance, change of activity of Notch signaling and gene mutation/deletion and so on.Mechanisms and the interaction between them built up network effect.

[Objective]Combing the application of ginseng in the past physicians to make readers understand the efficacy of ginseng,and to be flexible in order to better serve human health.[Methods]Through consulting the ancient books of materia medica,the understanding of the ancient physicians and the application of hanren formulae were summarized and analyzed.[Results]Although the ancient physicians of the past believed that ginseng was subject to tonify five organs,quiet spirt,set soul,stop fright,remove pathogen,in addition to bright eye,happy,educational. long taking makes people fit and live longer,but with the development of the times,the Han dynasty in to nifying Qi torelieve thirst,tonify Qi for deficiency,the Tang dynasty in tonifying heart Qi,benefiting heart spirit,the Song dynasty in complement,benefiting Qi,the Ming dynasty in benefiting qi,Qing dynasty in tonifying Qi and Yin,modern in emergency first aid application.[Conclusion]Through the analysis of the application of ginseng in past dynasties,the complement ginseng can be more widely used in clinic,and better serve human health.

Objective To minimize the instrument.Method The modern Electronic Microelements is welded onto a printed circuit board.Conclusion After proof tests,this instrument can meet the need of smaller volume,light weight,convenient use and effective treatment.

OBJECTIVE: Pancreatic stem cell transplantation is a new approach for diabetes treatment. It may overcome the shortage of human donor islets and avoid the long-term applying of immunity depressors. In this article, we review the recent progress of the sources, induced differentiation and the molecular markers of pancreatic stem cells. DATA SOURCES: A computer-based online search of PUBMED was undertaken to identify relative articles published in English from June 1997 to June 2006 with the keywords of "pancreatic, stem cell, differentiate, marker". Meanwhile, we searched Wanfang database for the related Chinese articles published between June 1997 and June 2006 with the same key words in Chinese. STUDY SELECTION: The articles were firstly selected and the quotations cited by every article were looked over. Inclusive criteria: The articles focusing on the source, induced differentiation and molecular markers of pancreatic stem cells. Exclusive criteria: Repeated experiments or Meta analysis articles. DATA EXTRACTION: According to the inclusive criteria, 31 articles were finally selected among the 82 ones collected from databases.Fifty-one old data or duplicated researches were excluded. Among the 31 selected articles, 6 presented the main conceptions, 15 were related to the sources of pancreatic stem cell and its induced differentiation, 9 were focused on the surface molecular markers and 2 discussed the major obstacles at present. DATA SYNTHESIS: Stem cells are pluripotential cells with the ability to self-renew; they are classified into two major classes: embryonic stem cell and adult stem cell. Pancreatic stem cells, belonging to the adult stem cells, could differentiate into tube cells, insulin-secreting cells, exocrine cells and other specific pancreatic tissue cells, which possess the fundamental properties of long-term proliferation and self-renewal. The studies on the sources, induced differentiation and molecular markers of pancreatic stem cells are extremely useful for the treatment of diabetes. Recent studies have shown that besides gene engineering, insulin-secreting cells are mainly generated from the differentiation of embryonic stem cells and adult stem cells such as pancreatic duct epithelial cells, nestin-expressing pancreatic stem/precursor cells, bone marrow mesenchymal stem cells and haematopoietic stem cells. The investigation on the molecular markers of pancreatic stem cell surface is essential to the basic and clinical research. PDX-1, nestin, CK-19, CK-20, Ngn3 and PGP9.5 are the major markers used in the identification, isolation and purification of pancreatic stem cells. CONCLUSION: The investigations on islet cells and pancreatic stem cells transplantations are promoting. Significant advancements in search for the sources and identification of pancreatic stem cells have been achieved. However, many obstacles should be overcome before any clinical breakthroughs can be expected. With the significant improvement in stem cell research and techniques, it is possible to obtain enough pancreatic stem cells from in vitro culture for transplantation.

The contrast of technical force between hospital and society is astonishing in the maintenance & service of large-scale medical equipment.When the maintenance & service plan must be chosen to socialized service,all the plans must be seriously compared and evaluated according to the current situation of the equipments in hospital for an economical and suitable selection.A right selection is necessary in promoting maintenance and management of large-scale medical equipment,keeping good operation of equipment,prolonging service life,and creating better economic and social benefits.