In recent years, the function of microphthalmia-associated transcription factor (MITF) is a hot field in melanoma.The abnormal expression of MITF is closely related to the occurrence and metastasis of melanoma.In addition, the down expression of MITF promotes its invasion.Studying the regulation of MITF and its related molecules and signaling pathways will let us further understand the molecule mechanism of malignant melanoma metastasis and provide help to exploit novel molecular targeted drug.

Purpose:To study the effect of inhibition of telomerase activity and cell cycle by transcriptase telomerase inhibitors (3′ azido 3′ deoxythymidine, AZT) on squamous cell carcinoma of tongue in vitro.Methods:Human squmous cell carcinoma of tongue cell line Tca8113 was used as target cell. Telomerase activity was determined by TRAP PCR ELISA in untreated and treated Tca8113 by AZT, cell cycle phases were analyzed by flow cytometry. Results:Telomerase activity of Tca8113 was significantly inhibited when treated with AZT, and the effect of inhibition was dose dependant (rate of telomerase activity treated with AZT in 0.3, 0.6, 1.0, 1.5mol 10 -1 was 0.69 0.03, 0.61 0.08, 0.53 0.11, 0.50 0.02 respectively, rate of telomerase activity treated without AZT was 0.76 0.06). Cell cycle of treated Tca8113 was changed with marked increase in G 2 /M phase compared with untreated Tca8113 (62.8% vs 19.7%, P

Micro-implant anchorage was used for orthodontic intervention of 3 patients with buccal impacted maxillary canine,good clinical outcome was obtained.The micro-implant anchorage may provided a new approach for the treatment of this kind of teeth.

Objective:To evaluate the expression of apoptosis related gene Fas Ligand(FasL) in human hepatocellular carcinoma(HCC) cells HepG2 and its significance in apoptosis.Methods:The recombinant eukaryotic expression plasmid pcDNA3.1hisB- FasL was transfected into HCC cells HepG2 by lipofection, and then soluble FasL was examined in the supernatant of culture cells by EIA, FasL expression in HepG2 cells were detected by immune histochemistry. After stained by annexin V and propidium iodine, cells were passed throw flow cytometer and examined by fluorescence microscope and sym-focus laser scaning microscope.Results:In comparison with untransfected cells,the soluble FasL could be detected in the supernatant of transfected cells, Fas L can be expressed in the membrane and cytoplasm of transfected cells. The apoptotic cell rate in transfected cells was 36.30%, as the control, untransfected cells was 11.53%.Moreover, the different stage of apoptotic cells could be distinguished by annexin V and propidium iodine stain.Conclusion:This supports a novel pathway of HCC cells were apoptotic itself via the CD95-CD95 ligand system without involvement of immune cells.

Background Researches showed that the content of nitric oxide (NO) and nitric oxide synthetase (NOS) increases in blood,aqueous humor and tear of cataract patient.But the function of NO and NOS in cataract formation is still elusive.Objective The aim of this study was to explore the prevention and treatment effect of NOS inhibitor,1-nitro-arginine methyl ester (L-NAME),on galactose cataract.Methods Sixty clean three-week-old Wistar rats were equally and randomly divided into 3 groups.0.9％ Normal saline solution (30 ml/kg) was subcutaneously injected every day for 30 days in the rats of the control group,and 50％ of D-galactose solution (30 ml/kg) was used in the rats of the model and L-NAME group at the same way.L-NAME eye drops was simultaneously administered in the L-NAME group 3 times per day for 30 days.The eyes of the rats were examined under the slit lamp in 10,20 and 30 days,and the degree of lens opacification was scored.Lenses of the rats were obtained at the end of this experiment for the detect of NO,NOS contents.Flow cytometry was used to assay the caspase-3 level of rat lens.Repeated measurement two factor analysis of variance was used to analyze the difference of lens opacification scores in different groups and different time points,and one-way ANOVA was used to analyze the differences of NO,NOS and caspase-3 contents in lens among the groups.Results Lens opacification appeared in 10 days after injection of 50％ D-galactose solution in the rats of the model group and L-NAME group.Lens opacification score was higher among the different groups and different time points (Ftime =435.251,P =0.000 ;Fgroup =395.120,P=0.000).NO content in the lens was (0.45±0.15) μmol/g,(2.67 ± 0.47) μmol/g and (1.68±0.34) μmol/g in the control group,model group and L-NAME group,showing a significant difference (F=58.872,P=0.000).The NOS contents in the lens was (0.0160±0.0020) U/ml,(0.0370±0.0040) U/ml and (0.0270±0.0010) U/ml in the control group,model group and L-NAME group,showing a significant difference (F =66.174,P=0.000).Caspase-3 contents in the lens was (339.4 ± 37.9),(697.7 ± 46.5) and (650.7 ± 53.1),Showing a significant difference among them (F =100.005,P =0.000).Conclusions The increase of NO,NOS and caspase3 levels are associated with lens opacification.Topical administration of L-NAME eye drops can down-regulate NOS content in lens,reduce the NO formation and inhibit the apoptosis of lens epithelial cells.

0.05). Accessory pathway antegrade and retrograde effective refractory period values were shorter in patients with PAF attacks (P

Acupuncture Therapy ; Adult ; Aged ; Face ; Female ; Humans ; Male ; Middle Aged ; Spondylosis ; therapy

Objective To construct a stable expression plasmids miR-218,to lay the experimental foundation for the expression and mechanism of miR-218 in human renal cell carcinoma.Methods The primers were designed by Has-miR-218 and the miR-218 fragment were amplified by PCR,and then which was connected with the carrier pcDNA3.1 (+) to build a stable expression plasmids.The recombinant plasmids were trasfected into renal cell carcinoma cell line 769-P,and the expression of miR-218 in these cells were detected.Results The plasmids were constructat successfully,which was determind by enzyme digestion and sequencing results.The constructed expression plasmids pcDNA3.1-miR-218 transfection of human renal cell carcinoma cell line 769-P,miR-218 cxpression level of cells was significantly increased after trasfected by recombinant plasmids carrying miR-218 gene (relative expression quantity was 1.64).Conclusion The miR-218 expression plasmids pcDNA3.1-miR-218 were successfully constructed,the plasmids can be applied to the study of miR-218 function and mechanism in renal cell carcinoma.

Objective To investigate the effect of pramipexole in the treatment of Parkinson after stroke .Methods 94 cases with Parkinson after stroke in our hospital from June 2013 to November 2015 were randomly selected and divided into two groups,47 cases respectively.Control group received routine etiological and symptomatic treatment, the study group received conventional therapy and symptomatic treatment and pramipexole treatment,two groups were treated for eight weeks.Parkinson’s disease scores,inflammatory cytokines and oxidative stress index,and the clinical effect and complications of contrast were compared after the treatment.Results Compared with before treatment,scores of daily activities of emotion integral integral,the motor function in two groups decreased,levels of serum IL-1β,IL-6,TNF-αand Hs-CRP decreased,levels of CAT,T-SOD,T-GSH in plasma increased (P<0.05),and compared with the control group,scores of daily activities of emotion integral integral,the motor function in the study group were lower,levels of serum IL-1β,IL-6,TNF-αand Hs-CRP were lower,levels of CAT,T-SOD,T-GSH in plasma were higher (P<0.05),and the total effective rate in the study group 91.49% was higher than the control group 74.47% (P<0.05).Conclusion Pramipexole in the treatment of Parkinson after stroke was effective with high safety,and it can reduce Inflammatory factors and increase oxidative stress.

Objective To explore the significance of multiple microelectrode guided technique in determining the sensory?motor area of the sub?thalamic nucleus(STN)in deep brain stimulation(DBS)surgeries. Methods A total of 22 electrophysiological recording data of STNs recorded by multiple microelectrode was retrospectively analyzed ,while another 20 electrophysiological recording data of STNs recorded by a single micro?electrode was recruited as the control group. Results A total of 64 microelectrodes were used in 22 STNs guided by multiple electrophysiological recording electrodes. Sensory or motor activated potentials were recorded in 21 sides(95.5%),while regular discharge was recorded in one side. The average length of typical STN activity on the optimal channel of multiple electrophysiological recording electrodes was 5.58±0.53 mm,and the average length of sensory or motor activated potentials was 3.27±1.54 mm. In contrast,the average length of typical STN activity recorded by single microelectrode was 5.02±1.01 mm. However,sensory or motor activated potentials were recorded in 13 sides(65.0%)with the average length of 1.36±0.98 mm. Among the 22 STNs guided by multiple electrophysiological recording electrodes,the final implanted target was consistent with the initially selected anatomic target in 13 sides(coincidence rate,59.1%). In 9 sides,the electrophysiological target was inconsistent with the initially selected anatomic target. Conclusion STN DBS performed with multiple electrophysiological recording electrodes resulted in better outcomes of recording of the average length of typical STN activity or the average length of sensory or motor activated potentials of STN ,final confirmation of STN sensory motor area and determination of the optimal channel of implantation. Application of multiple electrophysiological recording electrodes provides a premise for the precise electrode placement in STN DBS surgeries.