Omega-3 fatty acids mitigate skin damage caused by ultraviolet-B radiation

Mice fed a diet containing an adequate amount of ω-3 fatty acids (ω-3 Adq) or a deficient diet (ω-3 Def) were irradiated with ultraviolet-B (UV-B) and were measured daily changes in transepidermal water loss (TEWL). TEWL was significantly increased in ω-3 Def mice with repeated UV-B irradiation, but this increase was significantly reduced in ω-3 Adq mice. The epidermal layers revealed thickening of the spinous and basal layers induced by UV-B irradiation in both groups. Moreover, the ω-3 Def mice had a disturbed epidermal structure and a coarser stratum corneum. And the granule cell layer is significantly reduced, and abnormal layer formation (parakeratosis) occurred in the stratum corneum. These results suggest that continuous UV-B irradiation promotes epidermal turnover and leads to epidermal thickening, but ω-3 fatty acids protect the body from UV-B-induced stress.journal articl

ジョー クラドック ノ オカミサン

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オトズレシ ヒト

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Measurement of the Branching Fraction, Polarization, and CP Asymmetry for B0→ρ+ρ- Decays, and Determination of the Cabibbo-Kobayashi-Maskawa Phase ϕ2

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diandra

Carex diandra Schranklesser panicled sedge;two-stamen sedge;lesser tussock sedge;bog panicled sedgecarex diandre;laiche à tige arrondie;laîche arrondieCarex diandraAlberta, Warner County; off highway 500, southwest arm of Van Cleeve coulee 10 km SSW of Wier BridgeDry Mixed Grassland; rolling prairie-prairie creek and pond in marsh meadow of Cares-Scirpus-Eleocharis-Beckmannia3275 fee

賈誼新書札記

1988-03departmental bulletin pape

0812-9869-9940 (WA), Jual Keranda Mayat Tanon

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へん長回転だ円体状空か面に軸対称圧力を受ける半無限体

へん長回転だ円体状空か面に軸対称圧力を受ける半無限体の問題を三次元弾性論に基づいて厳密に解析した. 解析においては Boussinesq の応力関数にへん長回転だ円体調和関数および円柱調和関数を与え, 両者を互いに座標変換することにより半無限体表面ならびに空か面の境界条件を同時に満足させた. そして等分布圧力について数値計算を行い, 空か近傍の応力分布, 最大応力とその生ずる位置を明らかにした.rights: 社団法人日本機械学会 rights: 本文データは学協会の許諾に基づきCiNiiから複製したものである relation: IsVersionOf: http://ci.nii.ac.jp/naid/110002375680/textapplication/pdfjournal articl