Tokyo shares closed decreased on Wednesday, extending a rout on Wall Street where fears grew over a global economic slowdown. The Nikkei 225 index, which dipped greater than 2% within the morning, ended down 1.17 percent or 313.48 points to stop at 26,386.63, while the wider Topix index fell 0.94 percent, or 17.75 factors, to 1,860.76. The dollar stood at