1. アカメガシワ葉エキス末摂食によるラット皮膚および 脂質代謝への影響
- Author
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大石祐一, 菱田結衣, 八巻泰子, 山根拓実, 岩槻 健, 吉仲宏揮, 丸山広恵, and 河野宏行
- Subjects
DEHYDRATION ,LIPID metabolism ,ADIPOSE tissues ,HIGH-fat diet ,PROTEIN hormones - Abstract
In addition to its other functions, the skin controls water loss from the body and acts as a barrier against the external environment. The molecules in skin cells play a major role in these functions and are markedly affected by hormone and cytokine levels, which are regulated by aging and nutritional status. The protein hormone adiponectin increases skin collagen, hyaluronan, and ceramide levels and decreases liver lipid levels. Mallotus japonicus leaf extract increases adiponectin levels in 3T3L1 cells. Therefore, we investigated the effects of M. japonicus leaf extract on skin cell molecules and lipid metabolism in rats fed a high-fat diet, which decreased collagen synthesis as well as hyaluronan and ceramide levels. Collagen, hyaluronan, and ceramide levels increased in rats administered 0.3% M. japonicus leaf extract powder over one month. The extract also significantly reduced triacylglycerol levels around the testicles. These results suggest that M. japonicus leaf extract powder effectively improves skin functioning and decreases adipose tissue. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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