Objective To explore the effects of curcumin on the expression of C-erbB-2, Survivin and Bax in prost cancer cell. Methods The effects of curcumin on the expression of C-erbB-2, Suevivin and Bax were observed by SP immnohistocherminstry and cell cultivate methods. Results The expression of Survivin and C-erbB-2 in contrast group were strong, but the expression of Bax was very weak. After the curcumin were incubated with culture medium for 6h, 12h, 24h, 48h, the expression of C-erbB-2 and Survivin were gradually decreased in DU145 cells, while the expression of Bax was increased and reached highest at the time point of 12 ～24h. Conclusion The curcumin can reduce the expression of C-erbB-2 and surviving, and increase expression of Bax. The curcumin may exert antitumor activity by interacting with DU145 cells.

Objective To investigate the differences in the inhibition of return (IOR) capacity of attention between expert and novice pilots.Methods Compared the capacity of IOR of 10 expert pilots and 10 novice pilots under the conditions of adjacent and spaced clueing positions by experiment and by means of simultaneous cueing processes.Results These data suggested that in simultaneous cueing processes,no matter that the clueing positions were adjacent or spaced,the reaction time of expert pilots( adjacent:(428.01 ± 64.89) ms,spaced:(425.24 ± 63.94 ) ms) was slower novice pilots ( adjacent:( 363.05 ± 38.95 ) ms,spaced:( 360.61 ± 41.70 ) ms )(P ＜ 0.01 ) ; the capacity of IOR in no matter that the clueing positions were adjacent or spaced.The expert pilots showed IOR at only one location when the 5 clues all appearance in simultaneous cueing processes (P＜ 0.05 ),and no IOR could be see in the other locations.The novice pilots showed IOR when the from 3 to 5 of clues appearance in simultaneous cueing processes,the disparity was significantly predominance(P＜ 0.01 ).Conclusion The expert pilots of stability of capacity of IOR is better than novice pilots,and show solidly and highly efficient space searching ability.