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A Novel Experimental Method for the Study of Intestinal Paralysis due to Endotoxicosis
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- Ninomiya Norifumi
- Department of Emergency and Critical Care Medicine, Nippon Medical School
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- Nemoto Kayo
- Department of Pharmacology, Nippon Medical School
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- Okamura Tadao
- Department of Pharmacology, Nippon Medical School
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- Suzuki Hidenori
- Department of Pharmacology, Nippon Medical School
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- Yamamoto Yasuhiro
- Department of Emergency and Critical Care Medicine, Nippon Medical School
Bibliographic Information
- Other Title
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- エンドトキシン誘発腸管麻痺の新しい測定法
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Description
Lipopolysaccharide (LPS) is thought to be the causal agent of paralytic ileus in sepsis. We have reported that contraction of taenia caecum isolated from guinea pigs is suppressed by LPS. In the present study, we tried to create a new experimental method for the study of intestinal paralysis induced by LPS with continuously recorded changes in the movement of taenia caecum of conscious guinea pigs. Laparotomy was performed under pentobarbital anesthesia in guinea pigs, and a microforce transducer was sutured on taenia caecum. After operation, the guinea pigs were allowed to eat and drink freely. Four days later, LPS (E. coli, O111:B4) was injected into the abdominal cavity, and the movement of taenia caecum was recorded. Changes in body temperature after the administration of LPS were measured successively. Intestinal contraction movements in conscious guinea pigs were recorded in a stable manner for many hours. The characteristic relaxing action of taenia caecum was that it peaked between 2 and 4 hours after administration of LPS and that it was dependent on the LPS-dose. Body temperature changed in good correlation to the tension of taenia caecum. The above results suggest that the novel method, monitoring the intestinal movement of conscious guinea pigs, is a useful experimental model for the study of intestinal paralysis due to endotoxicosis.
Journal
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- Nihon Kyukyu Igakukai Zasshi
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Nihon Kyukyu Igakukai Zasshi 14 (5), 241-250, 2003
Japanese Association for Acute Medicine
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Keywords
Details 詳細情報について
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- CRID
- 1390001204371502464
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- NII Article ID
- 130003625926
- 10011213834
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- NII Book ID
- AN10284604
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- ISSN
- 18833772
- 0915924X
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed