| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Research Abstract |
(1) In vitamin C knockout mice (SMP30 knockout mice) given the 0.0375 g/L aqueous solution of vitamin C, the lens vitamin C level decreased to approximately 1/3 of that in wild type mice. In vitamin C knockout mice given the 1.5 g/L aqueous solution of vitamin C, the lens vitamin C level was similar to that in wild type mice. Thus, the 2 V vitamin C doses can be viewed as appropriate for achieving V vitamin C deficiency and sufficiency, respectively, in the vitamin C knockout mouse lens.
(2) In SMP30 knockout mice (vitamin C deficiency) group lens opacities induced by UVR-B were significantly more extensive than in SMP30 knockout mice (vitamin C sufficiency) group or in wild type mice group. It was suggested that vitamin C deficiency increases lens susceptibility to UVR-B induced oxidative stress in mice.
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