| Budget Amount *help |
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2009: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2008: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
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| Research Abstract |
We estimated the mutation induction rate by examining DNA samples of 750 F1 rats derived from immature oocytes of dams irradiated with 2.5 Gy of gamma rays and 750 controls by the two-dimensional electrophoresis. There was no increase of deletion mutations in the exposed group. Our data, although still preliminary, imply that the genetic risk of radiation in female immature oocytes is smaller than that in male spermatogonia.
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