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タイトルA suspension model for hypokinetic/hypodynamic and antiorthostatic responses in the mouse
著者(英)Dombrowski, M. J.; Robb, R.; Musacchia, X. J.; Sonnenfeld, G.; Steffen, J. M.; Mandel, A. D.
著者所属(英)Louisville Univ.|NASA Ames Research Center
発行日1984-07-01
言語eng
内容記述Hypokinetic/hypodynamic and antiorthostatic responses to weightlessness and bedrest were simulated in mice using a suspension technique. Animals were suspended for 1 or 2 weeks in an antiorthostatic posture and positioned to permit freedom of movement but eliminate load bearing by the hindlimbs. Suspended mice exhibited reduced food and water intakes and a rapid 10 percent decrease in body weight to a level which was maintained for the remainder of the suspension period. Diuresis was evident in suspended mice, but the natriuresis and kaliuresis previously observed in the suspended rat were not evident. Differential hindlimb muscle atrophy and increased excretion of urea and ammonia were also noted in suspended mice. Postsuspension recovery studies indicated that the recovery process was highly effective. These results document specific responses in the mouse and similarities in the responses of mice and rats to suspension. These studies expand the utility of the suspension model and suggest that the mouse may be useful in future studies simulating both weightlessness and bedrest.
NASA分類LIFE SCIENCES (GENERAL)
レポートNO84A40355
権利Copyright
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/397329


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