モルモット肺肥満細胞，末梢血中総白血球・好酸球，脾臓および胸腺リンパ球に及ぼす飼料油脂中ｎ‐３／ｎ‐６脂肪酸比率の影響

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  • モルモット肺肥満細胞,末梢血中総白血球・好酸球、脾臓および胸腺リンパ球に及ぼす飼料油脂中n-3/n-6脂肪酸比率の影響
  • モルモット ハイ ヒマン サイボウ マッショウケツチュウ ソウ ハッケッキュウ コウサンキュウ ヒゾウ オヨビ キョウセン リンパキュウ ニ オヨボス シリョウ ユシ チュウ n 3 n 6 シボウサン ヒリツ ノ エイキョウ

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In the present study, we investigated whether dietary n-3 PUFA improves type I allergic symptoms. We fed the diets which contained oils that changed gradually in the dietary n-3/n-6 ratios (0.02, 0.2, 0.5, 1.0, 2.0, respectively) for three weeks to guinea pigs (Hartley, male). After the end of feeding, we counted the number of total leukocytes and eosinophils in peripheral blood, and lymphocytes in spleen and thymus. And we counted the number of tunica mucosa bronchiorum mast cells (TMBMC) and analysed the compositions of leukotrienes from mast cells. There were no differences in the number of total leukocytes in peripheral blood, but eosinophils decreased with increase of dietary n-3/n-6 ratios. Moreover, the number of TMBMCs decreased with increase of dietary n-3/n-6 ratios. The amount of 5 series leukotorienes from TMBMCs was increased with increase of dietary n-3/n-6 ratios. On the other hand, the amount of 4 series leukotorienes was decreased. These results shows that dietary n-3 PUFA improves type I allergic symptoms. On the other hand, There were no differences in the number of lymphocytes in spleen, but lymphocytes in thymus increased with increase of dietary n-3/n-6 ratios. This result shows that dietary n-3 PUFA (EPA and DHA) inhibits the maturity of lymphocytes.

収録刊行物

  • 脂質栄養学

    脂質栄養学 19 (1), 93-102, 2010

    日本脂質栄養学会

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