AIM: To explore the treatment methods of severe migraine. METHODS: 51 cases of severe migraine patients were treated with the combination of radix salviae militiorrhizae, diclofenac and sodium aescinate, and another 62 cases of severe migraine patients were treated with diclofenac alone. RESULTS: The efficacy of the combination is better than that of diclofenac alone (P

Objective To evaluate the strictness and self-consistency of the charge nurses in the nurses examination using venipunctnre trocar operation as research object.Methods FACETS,the polyhedral Rasch software was used in the examination.Results The strictness and self-consistency of charge nurses were evidently different.Conclusions The variable strictness and self-consistency of the charge nurses in the examination leads to unreliability of the results.Developing a scientific and reliable evaluation system is essential to improve the ability of the teaching nurses and the student nurses as well as the hospital nursing quality.

BACKGROUND:Studies have shown that the finite element method could preferably simulate the biomechanical analysis for the object with complicated structures and irregular shapes. The similarities for the finite element model have great influences on the results of the analysis. However, to construct an ideal model is the most time-consuming and complicated portion for the finite element analysis. OBJECTIVE:To construct a finite element model for the maxilary first molar and the periodontal tissue, and to provide a basis of biomechanical researches of the maxilary first molar. METHODS: A volunteer with complete mandibular dentition and healthy periodontal tissue was selected in this study. Cone-beam CT was scanned. The images were saved as DICOM format. These images were imported to the medical modeling software Mimics. The surface model for the maxilary first molar and the alveolar bone was constructed. The model was then imported to GiD for pre-processing. Thus, the complete three-dimensional finite element model for the maxilary first molar and the periodontal tissue was constructed. RESULTS AND CONCLUSION:A finite element model for bilateral maxilary first molar, periodontal ligament and maxilary alveolar bone was constructed, including 896 035 nodes and 4 881 067 elements. This model has restored the geometric shape and the structure of the research object. This study successfuly constructed finite element models of maxilary first molar and the periodontal tissue, which can be a basis of biomechanical researches for the maxilary first molar and the periodontal tissue under the effect of different clinical orthodontic forces.

Objective To study the inhibition of AP-1 transcription factor activity by Hint1 gene over expression in HepG2 cell lines. Methods The Hintl gene was amplified, and then was inserted into the pcDNA3/HA eukaryotic expression plasmid. The constructed pHA-Hint1 plasmid was confirmed by DNA sequencing. The pHA-Hint1 was transfected into the HepG2 human hepatoma cells. Semi-quantitative RT-PCR and Western-blot were used to detecte the expression of HA-Hint1. The HepG2 cells were co-transfected with pHA-Hint1 and pAP-1/Luc luciferase reporter. At 36 h after transfection, luciferase assay system was used to detect the AP-1 transcription factor activity. Results The constructed pHA-Hint1 was confirmed by DNA sequencing, pHA-Hint1 gene transduction through lipofectine induced over-expression in HA-Hint1 mRNA (t =3.89, P<0.05) and HA-Hintl protein (t=3. 12, P<0.05). Co-transfection of Hint1 gene inhibits AP-1 luciferase activity. Cotransfection with increased concentration of a pHA-Hint1 plasmid (0 μg/ml, 0. 5 μg/ml, 1.0 μg/ml, 1.5 μg/ml, 2. 0 μg/ml) produced a concentration-dependent inhibition of AP-1 transcription factor activity. At the concentration of 1.5 μg/ml, and 2.0 μg/ml, the activity inhibition reaches significant difference ( F = 72. 009, P < 0. 05 ). Conclusion Over-expression of Hintl can, at least in part, inhibit the AP-1 transcription factor activity in HepG2 cells.

Aged ; Carcinoma, Hepatocellular ; diagnostic imaging ; pathology ; surgery ; Hepatectomy ; methods ; Humans ; Liver Neoplasms ; diagnostic imaging ; pathology ; surgery ; Male ; Middle Aged ; Tomography, X-Ray Computed

Objective To investigate the genetic polym orphism s of 21 autosom al STR loci of Fujian H an population and evaluate the forensic application value of GlobalFilerTM E xpress kit. Methods A m plified w ith GlobalFilerTM E xpress kit, DNA sam ples were obtained from 741 unrelated individuals of Fujian H an population. The population genetics param eters of 21 autosom al STR loci were calculated. Results The 21 autosom al STR loci were found to be no deviation from Hardy-Weinberg equilibration (P>0.05) and relatively abundant in high polym orphism . H eterozygosity ranged from 0.589 to 0.914, pow er of dis-crim ination ranged from 0.754 to 0.992, polym orphic inform ation content ranged from 0.520 to 0.940, and pow er of exclusion ranged from 0.278 to 0.825. The SE33 locus was the highest degree in poly-m orphism . Conclusion The 21 STR loci of GlobalFilerTM E xpress kit have high value in discrim ination pow er and can be useful in personal identification and paternity test in Fujian H an population.

Objective:To explore the influence factors on amplification of single cell duplex-nested PCR.Methods:The mutational loci region CD41-42 and IVS-Ⅱ654 of ?-globin gene were amplified by duplex-nested PCR with different combination of primers concentration, different Taq DNA polymerases, different neutralization buffers and with or without predenaturation at 98 ℃ before the PCR amplification in single lymphocyte or single blastomere, thus, to investigate the influence of these factors on the amplification efficiency of PCR.Results:TaKaRa EX Taq was the most efficient Taq DNA ploymerase among different Taq DNA ploymerases; primer pair R1+F1 at final concertration of 0.25 ?mol/L and R2+F2 at 0.3 ?mol/L were the most efficient ones in amplification among different combinations of primers concentrations; the amplification efficiency in neutralization buffer-1 (200 mmol/L Tricine) was obviously higher than that of neutralization buffer-2 (900 mmol/L Tris-HCl, pH 8.3/300 mmol/L KCl/200 mmol/L HCl)(P0.05). Conclusion:There were remarkable differences of the amplification efficiency of single cell duplex-nested PCR while using different combination of primers concentrations, different Taq DNA polymerases, different neutralization buffers. However, predenaturation at 98 ℃ before the single cell PCR amplification could not improve the PCR amplification efficiency

Objective To explore the relationship between galactose-induced apoptosis of lens epithelial cells and cataractogenesis.Methods Galactose was injected retrobulbarly into Wistar rats.The opacity of lens was examined by slit lamp.The expression of C-MYC was measured by flow cytometer.The apoptosis of lens epithelial cells was observed by TUNEL techniques.Results More than 50 percent of lenses were in the Ⅱ stage of cataractogenesis on the(7 d) after galactose induction;Eighty-seven percent of lenses were in the Ⅳ-Ⅴ stage on the(14 d),and 100 percent of lenses were in the Ⅳ-Ⅴ stage on the(24 d).The rate of apoptotic cell on the(7 d) and on the(14 d) after galactose induction was respectively 5.6%～8.4% and 30.2%～41.8%,and 60% apoptotic cells were observed on the(24 d).The levels of C-MYC expression in lens epithelial cells induced by galactose on the(7 d) and(14 d) were higher than that of normal lenses,but the level of C-MYC expression backed to normal level on the(24 d).Conclusion It was suggested that there are some apoptosis of the lens epithelial cells during galactose-induced cataractogenesis and that the apoptosis of the lens epithelial cells might be caused by higher expression of C-MYC.

Objective To assess the feasibility of heterogeneous acellular dermal matrix(ADM)seeded with adipose derived stem cells(ADSC)for urethroplasty in a rabbit model.Methods ADSC were isolated from a rabbit and expanded in vitro,then identified by flow cytometry.We seeded ADSC onto the ADM and made it into tissue-engineered urethra.12 male rabbits were removed 1 cm urethra and divided into experiment group and control group.There were 6 rabbits in each group.Reconstructed urethra with tissueengineered urethra was used in experiment group,while unseeded ADM were used in control group.Urethrography was performed at 6 months after surgery.The animals were scarified at 3 and 6 months after surgery and the repaired urethra were harvested.H&E staining and immunohistochemical staining were performed with cytokeratin AE1/AE3 and smooth muscle desmin makers.Results The morphology of isolated ADSC was with long spindle cross-links,and had multicentral growth.Flow cytometry showed that the ADSC expressed CD166,CD105,CD90 and CD44,but not expressed CD45 and CD13.The cells could growth well on the ADM and showed good biocompatibility with it.All animals could void normally,urethrography showed there was no significant stenosis.3 months after surgery,the experiment group appeared regenerated smooth muscle but not in the control group,both groups did not regenerate urothelium.At 6 months urothelium and smooth muscle cells could be observed in the experiment group,but only the smooth muscle was evident in the control group.Conclusions By applying tissue engineering methods,we can seed the ADSC onto the heterogeneous ADM and make it into tissue-engineered urethra,which can help improve the reconstructive effect of urethra.

Objective To construct the secretory expression vector of recombinant human C-reactive protein(rhCRP) for its se-cretory expression in Pichia pastoris ,rhCRP was expressed as a secretory protein and purified ,and the immunity reactivity of the purified protein was identified .Methods The DNA fragment of rhCRP which was designed and synthesized was cloned into pPICZαA vector .Recombinant plasmid pPICZαA/rhCRP was linearized by SacⅠand transformed into Pichia pastoris X-33 by elec-trotransformation .The rhCRP was secreted into the medium under the methanol induction .RhCRP was purified by Histamine affin-ity chromatography .The purified rhCRP was identified by SDS-PAGE and Western blotting ,and its immunity reactivity and stabili-ty was identified by indirect ELISA .Results The pPICZαA/rhCRP expression vector was successfully constructed .The rhCRP of 23 × 103 was inducted and successfully expressed as a secretory protein by the recombinant Pichia pastoris strains .The rhCRP was purified by one step up to 90 .42% purity ,and it was showed good immunity and stability by indirect ELISA .Conclusion The rh-CRP with higher purity and immunoreactivity was successfully obtained by using the Pichia pastoris expression system ,which pro-vided an important experimental basis for producing anti-human CRP antibodies and developing testing CRP reagent .