| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
In this study, I examined factors affecting disposition of tacrolimus after topical application using several experimental models including a new hybrid skin-model. Systemic absorption of tacrolimus depended on the barrier function of stratum corneum was shown in hairless rat model and the new hybrid skin-model. Trans Epidermal Water Loss (TEWL) was correlated with the systemic absorption of tacrolimus and it was suggested that preliminary determination of TEWL is useful to avoid the systemic side effect. In inflamed skin, although delayed absorption was caused by tacrolimus binding to leaching plasma proteins in the dermis, increased blood flow and blood vessel permeability in the inflamed skin can be related with high blood concentration of tacrolimus in the later phase. The results obtained in this study can be applicable for safe medication of atopic dermatitis using tacrolimus ointment.
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