OBJECTIVE: To explore the effect of psychological restoration methods on antianxiety of middle-aged patients after percutaneous transcoronary angioplasty (PTCA) and stenting. METHODS: From August 2005 to October 2008, 60 patients underwent PTCA and stenting in First Affiliated Hospital of Xinxiang Medical College were selected, who had heart function of grade 1 or 2, certain capacities of understanding and self-care. They were randomly divided into two groups, namely, intervention group (24 males and 6 females, aged46-59 years) and control group (23 males and 7 females aged 46-58 years). The patients in the Intervention group received different psychological restoration according to their condition before and after surgery and psychological education for their anxiety, horror, depression and self-abasement. The patients in the control group were treated using normal methods. The anxiety extent of the patients before and after operation in two groups was assessed with Zung Self Rating Anxiety Scale (SAS) and Symptom Checklist 90 (SCL-90). High scores represented high extent of anxiety. RESULTS: The 60 patients were included in the final analysis. The scores of two scales in intervention group before and after intervention were significantly less than control group (P < 0.01). The scores of SAS on the day of operation were significantly reduced than before operation in intervention group (P < 0.01), and postoperative scores were significantly reduced compared with those on the day of operation (P < 0.01 ). In addition, some factors of SCL-90 in intervention after operation were similar to national norm and significantly reduced than preoperative scores (P < 0.01 ). CONCLUSION: Mental intervention treatment can significantly improve anxiety degree of patients undergoing PTCA and stenting and promote restoration of patients.

Objective To study the genetic toxicity of 3 brands of detergents to the root tip cells of Vicia faba in the inducing time and the inducing way(continual mutagenesis,accumulative mutagenesis) with micronucleus and the chromosomal aberration Methods The root tip cells of Vicia faba were taken as the subjects,the genetic safety tests were conducted on those materials treated with detergent of a certain concentration(0.25%) for 2、4、6 h of continual mutagenesis and accumulative mutagenesis respectively.Distilled water was used as the control.Results The continual mutagenesis showed that all the three detergents could induce the root tip cells of Vicia faba to produce micronucleus and chromosomal aberration and as the mutagenic time prolonged,at 6 h,the changes became weak.The genetic toxicity in the accumulative mutagenesis group was greater than that in the continual mutagenesis group.Conclusion According to the results of the present paper,to some extent,detergents may produce genetic toxicity.

Objective To study the genetic toxicity of magnesium sulfate to the root tip cells of Vicia faba. Methods The root tip cells of Vicia faba with 1.5-2 cm root tip were taken as the subjects and were exposed to magnesium sulfate of different concentrations(0.50%-2.00%) for 6 h. In the other test,the cells were treated with 1.5% magnesium sulfate for 2,4,6,8 and 10 hours respectively. The distilled water and potassium dichromate (0.05%) were used as the negative and positive control respectively. The micronucleus and the chromosomal aberration were calculated after 24 hours of culture. Results Compared with the negative control group,0.1%,0.15%,0.175% and 0.2% of magnesium sulfate increased the micronucleus and 0.05%,0.1%,0.15%,0.175%,0.2% of magnesium sulfate increased the chromosomal aberration in Vicia faba root tip cells. Compared with the control group (0 h),both of the micronucleus and the chromosomal aberration of Vicia faba root tip cells increased (P

Objective To study the genotoxicity of 3 kinds of different brands shampoo to Vicia faba root tip cells. Methods To take root tip cells of Vicia faba as the subjects,genetic safety tests were conducted on those materials treated with shampoo of a certain concentration(0.25% ) for 2-8 h of continual mutagenesis and accumulative mutagenesis respectively,micronucleus and chromosomal aberration was observed and calculated,the rate of tap water was used as the control. Results Three kinds of shampoo could induce root tip cells of Vicia faba to produce micronucleus and chromosomal aberration,the peak was in the continual mutagenesis for 4 h and accumulative mutagenesis for 8 h respectively,which showed dose-effect relationship. There were significant differences between the control group and the experimental groups( P

Objective To investigate the effect of cognition training on the recovery of balance after stroke. Methods forty-five hemiplegic strokd patents with cognition deficit were revruited and sddigned into an experimental group and a control group according to the results of an assessment with Loewenstein's Occupational Therapy Cognition Assessment battery (LOTCA). The patients in the two groups folloled routine systmatic rehabilitation programs. The patients in the (LOTCA). The patients in the two groups followed routine systmatic rehabilitation programs.The patiena in the experimental group received pertinent cognition training 5 days/week for 6 weeks. LOTCA,Brunel's Balance Assessment (BBA), the Berg Balance Scale (BBS) and Brunnatrom functional categories were enployed to evaluate the patients before and after treatment with regard to their cognition, balance control and motor function in their lower limbs. Results After treatment, there were statistically significant differences between preand post-treatment BBA and BBS scores in all groups. Average BBA, BBS and LOTCA scores in the experimental group were significantly higher than in the control group. The improvements in BBS, BBA and LOTCA scores in the experimental grou were significantly greater than in control group. Conclusion Cognition treatment can contribute significantly to improving balance and postural control among stroke survivors.

Objective To establish a determination method of ferulic acid in Jianpibuxue tablets.(Methods)HPLC was used with Lichrospher C_(18)(4.6mm?250mm,5?m) as the column.The mobile phase was a mixture of acetonitrile-0.378mol/L acetum(30∶70) and in a flow rate of 0.8mL/min;The detective wavelength was 321nm;Column temperature was room temperature and the injection quantity was 10?L.(Results)Ferulic acid in samples was well separated.The linear range was 1.0-10.0mg/L(r=0.9996).The average recovery was 99.8% and RSD was 0.26 %(n=6).Conclusion This method can be used for quality control of ferulic acid in Jianpibuxue tablets.

Exocyst complex is known to function in the exocytosis network, however, the molecular mechanism is unclear yet. Using UV/trimethylpsoralen mutagenesis, the sec-10 (one component of the exocyst complex) knockout mutant of C. elegans was obtained for the first time. The drug sensitive assays revealed clearly that the sec-10 gene affected the neural signal transmission, however, the electrophysiological assay showed the function of the ionotropic receptors in the neuromuscular junctions (NMJs) were unaltered compared with the wild type (WT). Thus it was assumed that the sec-10 gene might not influence the known ionotropic receptors in the NMJs, but some other pathways instead.

Speckle is the main reason which declines the quality of medical ultrasonic images. In this paper, the initial condition for the Downhill filter, a morphological reconstruction algorithm, is modified and applied in the speckle reduction. Firstly, the initial area and start position as the mark image was determined in the marker image. Then the modified Downhill filter was used in the ultrasonic marker image. The results showed that, in comparison with the other three filters, this modified Downhill filter, while maintaining the integrity of the contour,could reduce the speckle in the regions of cavity efficiently and rapidly.
Algorithms ; Humans ; Image Enhancement ; methods ; Image Processing, Computer-Assisted ; Ultrasonography ; methods

Objective To investigate the role of ski in proliferation of astrocytes and the molecular mechanisms in rats. Methods Astro-cytes were obtained from cerebral cortex of a three-day old rat and cultured in vitro. siRNA targeted to ski and negative control sequences were prepared. The astrocytes were divided into ski-siRNA group, siRNA negative control group and untreated control group, while the spe-cific siRNA targeting ski negative control sequences were transfected into astrocytes with Lipofectamine? RNAiMAX Reagent. The protein levels of ski, glial fibrillary acidic protein (GFAP) and Cyclin D1 were determined with Western blotting. The proliferation of astrocytes were measured with CCK8 assay. The cell-cycle of astrocytes were analyzed with flow cytometer. Results The protein level of ski (F=38.611, P<0.01), GFAP (F=7.547, P<0.05) and Cyclin D1 (F=3.901, P<0.05) reduced in ski-siRNA group, the proliferation of astrocyte was significantly inhibited since twelve hours after culture (F>30.507, P<0.01), and less cells were in S phase and more in G1/G0 phase (F>48.425, P<0.01), compared with the control groups. Conclusion ski knocking down by siRNA significantly inhibits the proliferation of astro-cytes, which may associate with the down-regulation of Cyclin D1 expression.

Objective To investigate the effect of ski gene in migration process of astrocytes in rats. Methods Astrocytes were obtained from rats' cerebral cortex and cultured in vitro. siRNA targeting ski gene and negative control sequences were prepared. The ski-siRNA group, siRNA negative control group and untreated group were set in this experiment. The specific siRNA targeting ski gene was transfected into astrocytes with Lipofectamine?RNAiMAX Reagent. Then the ski protein levels were determined with Western blotting. After transfec-tion, the changes in migration of astrocytes were measured with wound scratch assay and Transwell migration assay. Results Western blot-ting showed that the expression of ski protein was significantly lower in the ski-siRNA group than in the siRNA negative control group and untreated group (F=132.957, P<0.001). Transwell migration assay showed that the number of astrocytes crossing through chambers was less in the ski-siRNA group than in the siRNA negative control group and untreated group (F>47.197, P<0.05). Wound scratch assay showed that the wound healing rate was lower in the ski-siRNA group than in the control group one, two, three, four and five days after transfection (F>69.187, P<0.001). Conclusion Ski knocked down by siRNA could inhibit the migration ability of astrocytes. It is a reminding that ski may take part in the migration process of astrocytes, and moreover, ski may play an important role in the formation of glial scar.