OBJECTIVE:To establish a HPLC method for determination of paeonol and imperatorin in Cangzhi nose spray. METHODS:HPLC system consisted of ODS C 18 column(150mm?4.6mm,5?m)methanol-water(6∶4)mixture as mobile phase,with detection wavelength at310nm,flow rate1.0ml/min.RESULTS:The average recoveries of paeonol and imperatorin were99.4%(RSD=0.69%)and99.9%(RSD=2.66%)respectively.CONCLUSION:The method is sensitive,rapid and ac?curate.

From genomics to proteomics, and then to miRNA, all without exception showed that proteins are the substance which directly regulate life. Comparing with genomics, the study of proteins is more difficult for its great variety, complicated modification and complicated construction. Recently, some new techniques for protein assay and research have provided us, for example, Fluorescence labeling, SELDI, SPR and optical protein chip, of which, SELDI SPR and optical protein chip are label-free. SELDI protein chip technique and its newly developed applications are briefly reviewed here.

Objective: To determine ? asarone and ? asarone in Rhizoma acori tatarinowii(RAT) . Methods: HPLC condition consists of ODS C 18 column(150mm?4.6mm, 5?m), methanol: water(6∶4) as mobile phase containing potassium dihydrogen phosphate 1.4g and sodium lauryl sulfate 1.2g per 1000mL, detective wavelength at 257nm, flow rate at 1.0mL?min -1 . Results: For RAT the mean recovery of 99.02%( RSD =1.03%) for ? asarone, 101.26%( RSD =3.57%) for ? asarone are obtained, respectively. Conclusion: The method is sensitive, rapid and accurate.

Objective In order to understand situation of the passive smoking in public places and provide scientific basis for formulating a policy of tobacco control and implement FCTC. Methods Observation on site and investigation by questionnaire in 45 public places, including service halls of government, medical and health units, schools, waiting room of communication, markets in the provincial capital, prefecture cities, county town. Results In 45 public places, there was 53.3% being smoking forbidden sites, 31.1% having no -smoking regulations and 68.9% having ban -smoking signs. It was common that people smoking in public places. Investigation by interception showed that it was easy to find out smoker in public paces. 93% persons investigated were exposed to passive-smoking every day over half hour, over 40% were never against on smoking in front of themselves, over 70% smoker never to ask if other persons agreed on their smoking in front of other people. 64.2% student's fathers were smokers and 44.7% of them exposed to passive-smoking at home in a week. 59.3% students saw his teachers smoking at schools. Conclusions It was a serious problem of public health that smoking in public places. It is necessary to strengthen the construction of rulers and law and strictly implement it, while strengthen propaganda and education in order to reduce passive-smoking and promote FCTC implement.

To observe the growth, expansion and differentiation of the cultured bone marrow stroma cell (BMSC) from Macaca Lrus, BMSC isolated from adult Macaca Lrus were cultured with the culture medium confected by ourselves and were induced with some cytokines such as LIF and bFGF. The results showed that the BMSC could proliferate and generate Nestin positive clones when they were cultured in vitro. After subculture, these cells could grow rapidly and differentiated into neuron like cells and astrocyte like cells further, which expressed GFAP or NSE antigen respectively. Therefore, these BMSC possess renewal and differentiation abilities. On the other hand, the culture method we used in this experiment is suitable for culture of BMSC in vitro. The BMSC might be used as the seed cells of the neural stem cells.

Objective: To determine the component of naphtha from Acorus tatarinowii Schott.which can pass through the blood-brain barrier. Methods: Naphtha in rat brain was analyzed by GC-MS after gastric infusion of naphtha. Results: The methylisoeugenol,elemicin, ?-asarone and ?-asarone were detected in rat brain. Conclusion: The resuscitative effect of naphtha is resulted from the comprehensive action of multiple components.

OBJECTIVEWe used functional magnetic resonance imaging (fMRI) to explore the effects of noxious coldness and non-noxious warmth on the magnitude of cerebral cortex activation during intraoral stimulation with water.

METHODSSix male and female subjects were subjected to whole-brain fMRI during the phasic delivery of non-noxious hot (23 °C) and no- xious cold (4 °C) water intraoral stimulation. A block-design blood oxygenation level-dependent fMRI scan covering the entire brain was also carried out.

RESULTSThe activated cortical areas were as follows: left pre-/post-central gyrus, insula/operculum, anterior cingulate cortex (ACC), orbital frontal cortex (OFC), midbrain red nucleus, and thalamus. The activated cortical areas under cold condition were as follows: left occipital lobe, premotor cortex/Brodmann area (BA) 6, right motor language area BA44, lingual gyrus, parietal lobule (BA7, 40), and primary somatosensory cortex S I. Comparisons of the regional cerebral blood flow response magnitude were made among stereotactically concordant brain regions that showed significant responses under the two conditions of this study. Compared with non-noxious warmth, more regions were activated in noxious coldness, and the magnitude of activation in areas produced after non-noxious warm stimulation significantly increased. However, ACC only significantly increased the magnitude of activation under noxious coldness stimulation.

CONCLUSIONResults suggested that a similar network of regions was activated common to the perception of pain and no-pain produced by either non-noxious warmth or noxious coldness stimulation. Non-noxious warmth also activated more brain regions and significantly increased the response magnitude of cerebral-cortex activation compared with noxious coldness. Noxious coldness stimulation further significantly increased the magnitude of activation in ACC areas compared with noxious warmth.

Cochlear Implantation ; adverse effects ; Female ; Humans ; Infant ; Meningitis ; etiology ; Postoperative Complications

Subtilis bacillus spores for novel vaccine delivery has attracted significant interest of more and more researchers by their unique biological characteristics. In this review,the structure and immunogenicity of spores were briefly discussed, then special emphasis placed on the use of recombinant spores as vaccine delivery vehicles,some ideas for further studies on surface display of recombinant vaccines on Subtilis bacillus spores were also proposed

Objective To study the effect of hypoxia on the mRNA expression of osteoprotegerin(OPG) and receptor activa‐tor for nuclear factor‐κB ligand(RANKL) in human periodontal ligament cells(hPDLCs) and to explore the role of hypoxia in the orthodontic bone resorption in pressure side .Methods The primary hPDLCs were cultivated with enzyme digestion assay and tis‐sue cultivation .The 3-5 generations of hPDLCs were respectively cultured 3 ,6 ,12 and 24 h in normoxia condition (20% O2 ) or in hypoxia condition (2% O2 ) .The mRNA expression of OPG and RANKL were detected with RT‐PCR .The experimental data was analyzed by one way ANOVA using SPSS15 .0 .Results After cultivated in hypoxia condition for 3 h or 6 h ,the mRNA expression of OPG and RANKL in hPDLCs didn′t change significant(P> 0 .05) .After cultivated in hypoxia condition for 12 h or 24 h ,the mRNA expression of OPG in hPDLCs decreased while the RANKL increased .Thus the ratio of RANKL/OPG increased and the difference was significant(P<0 .05) .Conclusion Hypoxia can regulate the mRNA expression of OPG and RANKL in hPDLCs and will promote the orthodontic bone resorption in pressure side .