Tokyo stocks came under renewed pressure Thursday morning, with the Nikkei index briefly sinking over 2 percent, weighed down by overnight losses on Wall Street and concern over the recent upward trend in long-term interest rates in Japan. The 225-issue Nikkei Stock Average fell 582.40 points, or 1.51 percent, from Wednesday to 37,974.47. The broader Topix index was down 20.01 points, or 0.73 percent, at 2,721.61. The yield on the benchmark 10-year Japanese government bond at one stage rose 0.025 percentage point from Wednesday’s close to 1.100 percent, its highest level in over 12 years, amid…