| Budget Amount *help |
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2013: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2012: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2011: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
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| Research Abstract |
Fucoxanthin (Fx) suppressed chronic inflammation in white adipose tissue by the inhibition of macrophage and T cell infiltration. Further, Fx down-regulated mRNA expression of chemokines and adipokines, which recruit immune cells and induce insulin resistance. In diabetic/obese mice fed Fx, GLUT4 activation was observed in skeletal muscle through the improvement of hyperglycemia. On the other hand, Fx and astaxanthin (Asx) extracted from H. pluvialis prevent DSS-induced colitis and colon carcinogenesis in mice. In colon of the mice fed Asx, mRNA expression levels of inflammatory cytokines tended to decrease compared to control mice. In addition, Asx down-regulated mRNA expression of inflammatory cytokines in macrophage-like cells and colon cells stimulated by the culture medium of activated macrophages. These results suggest that marine carotenoids prevent chronic inflammation and its-related diseases by the regulation of cell and tissue communication via chemokines and cytokines.
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