頬嚢粘膜(Golden Hamster)に加えた刺激に対する : 血管系の形態的変化についての生体観察

概要

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Thermal or mechanical stimulation associated with food intake is said to be one of the most common local irritations for the gingival tissues. The purpose of this study is to find out the effect of these factors on the microcirculatory system of the oral mucous membrane. Cheek pouches of Syrian Golden hamsters were exposed to thermal, mechanical and chemical irritations for a certain period and were investgated using the capillaromicroscope. The results were as follows: When cheek pouches were tested by 0.5 ml heated water (60℃) in 10 seconds, the artery of the microcirculatory system shrunk after 5 minutes of its stimmulation, and after 10 minutes, it was reconverted. Secondary shrinkage appeared after 20-50 minutes and recovery was observed as same as the control side after 4 hours. But the ramarkable changes did not occure in the venous microcirculatory system. When the membrane was stimulated using vibrator for 30 seconds, the artery of the microcirculatory system contracted after 5 minutes and reconversion was observed after 10 minutes. When the membrane was investigated by the use of 10% croton oil solution, the artery of the microcirculatory system began to shrink immediately after application, and the most shrinkage was observed after 1 hour and recovery occurred after 4 hours.
特定非営利活動法人日本歯周病学会の論文
1964-03-20