Effects of two types of inactivity on the number of white blood cells in rats

Ken Shirato, Norio Motohashi, Jun Tanihata, Kaoru Tachiyashiki, Akio Tomoda, Kazuhiko Imaizumi*

*この研究の対応する著者

    研究成果: Article査読

    20 被引用数 (Scopus)

    抄録

    Prolonged inactivity is known to induce changes in responses of many physiological defense systems such as the hypothalamo-hypophyseal-adrenocortical axis, the sympathetic nervous system, and immuno-responsive systems. However, effects of various types of inactivity on immuno-responsive systems are still unknown. Therefore, the effects of two types of inactivity (immobilization: IMM and whole body suspension: WBS) on the number of white blood cells were studied in rats. Rats were divided into the control group and each inactivity group to compare the number of total white blood cells, lymphocytes, monocyte, neutrophil, eosinophil, and basophil during the experimental periods. Both IMM and WBS were maintained for 11 days. IMM markedly increased the number of total white blood cells, monocyte, neutrophil, and eosinophil in the 1st to 10th day. However, the number of total white blood cells, monocyte, neutrophil, and eosinophil during the experiment of WBS were characterized by the presence of a lag phase followed by the significant increased actions. IMM did not change the number of basophil during the experimental period. However, WBS increased the number of basophil in the 1st to 8th day to 2.8-4.8 times, compared with the values of the control. Both IMM and WBS did not change the number of lymphocytes. From these results, WBS increases the number of natural immunity cells without changing acquired immunity cells, and there are different responses in the number of total white blood cells, monocyte, neutrophil, eosinophil, and basophil between IMM and WBS.

    本文言語English
    ページ(範囲)590-600
    ページ数11
    ジャーナルEuropean Journal of Applied Physiology
    98
    6
    DOI
    出版ステータスPublished - 2006 12月

    ASJC Scopus subject areas

    • 公衆衛生学、環境および労働衛生
    • 生理学
    • 整形外科およびスポーツ医学
    • 理学療法、スポーツ療法とリハビリテーション

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