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ID 16969
Eprint ID
16969
フルテキストURL
Thumnail 91_1035.pdf 9.89 MB
タイトル(別表記)
Microvascular changes of gastric mucosa in the development of stress ulcer in rats A scanning electron microscopic study of vascular casts
著者
近沢 信儀 岡山大学医学部第1外科教室
抄録
Under a scanning electron microscope, the microcirculation in the stomachs of rats under stress was observed by a corrosion casting technique. Stress ulcers were induced by a cold immersion and restraint method. After a short time of stress, the vascular pattern showed serpentining and narrowing of the capillaries and a local depression of the capillary network. After a moderately long time, defects in the vascular network began to appear and outflowings of Mercox from the venule became prominant. Casts of interrupted collecting venules were frequently seen. With further increase in the time of stress, the interruptions in the cast of the capillaries and collecting venules which were dilated, increased. These vessel changes descended deeper and deeper into the mucosa vessels but were limited to the laminapropria and did not extend to the muscularis mucosae. After stress following truncal vagotomy, the vasculature showed serpenting and narrowing of the capillaries. But there were few defects in the capillaries and capillary network. In the case released from a short time of stress, Y-shaped duplicated vessels were often observed on the defective capillaries. In the case released from prolonged stress, newborn buds were seen on the defective capillaries and collecting vessels. Duplicated capillaries and collecting vessels ran toward the surface of the mucosa.
キーワード
ストレス潰瘍
メルコックス樹脂
毛細血管の蛇行
血行の途絶
樹脂の流出像
発行日
1979-08-30
出版物タイトル
岡山医学会雑誌
出版物タイトル(別表記)
Journal of Okayama Medical Association
91巻
7-8号
出版者
岡山医学会
出版者(別表記)
Okayama Medical Association
開始ページ
1035
終了ページ
1064
ISSN
0030-1558
NCID
AN00032489
資料タイプ
学術雑誌論文
オフィシャル URL
https://www.jstage.jst.go.jp/article/joma1947/91/7-8/91_7-8_1035/_article/-char/ja/
関連URL
http://www.okayama-u.ac.jp/user/oma/index.html
言語
Japanese
著作権者
岡山医学会
論文のバージョン
publisher
査読
有り
Eprints Journal Name
joma