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- W2023277964 abstract "The effects of bile duct ligation (BDL), choledochostomy, bile acid sequestering within the intestinal lumen by cholestyramine, and fluid and electrolyte replacement on survival time and development of diarrhea after whole-body exposure to doses of ionizing radiation that result in death from acute intestinal injury were studied. BDL significantly prolonged survival and delayed the onset of diarrhea after exposure to 137Cs gamma rays, fission neutrons, or cyclotron-produced neutrons in the range of doses that produce intestinal death or death from a combination of intestinal and hematopoietic injuries. Cannulation of the bile duct with exteriorized bile flow (choledochostomy) to protect the irradiated intestine from the mucolytic action of bile salts did not duplicate the effect of BDL in increasing survival time. Choledochostomy without fluid replacement eliminated the occurrence of diarrhea in 15.4 Gy irradiated rats. Diarrhea did occur in irradiated animals with choledochostomy if they received duodenal injections of fluid and electrolytes to replace the fluid lost as a result of bile drainage. Duodenal injection of fluid and electrolytes, however, had no significant effect on survival time in irradiated rats. In contrast, injection of fluid and electrolytes into the peritoneal cavity of irradiated rats resulted in an increase in survival time that was comparable to that observed after BDL. Addition of antibiotics to the peritoneally injected fluid and electrolytes further increased survival time (up to 9 days). This survival time approached that seen in animals receiving the same radiation dose but which had the intestine exteriorized and shielded to minimize radiation injury to the intestine. Postmortem histological examinations of the irradiated small intestine showed mucosal regeneration in these long-term survivors receiving fluid and antibiotic therapy. In contrast, duodenal injection of cholestyramine post irradiation to bind bile acids had no effect on survival time or diarrhea incidence. The conclusions from these experiments are that BDL prolongs survival and postpones the onset of diarrhea in irradiated rats dying from acute intestinal injury primarily by slowing down the loss of fluid and electrolytes and that bile acids play no significant role." @default.
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- W2023277964 date "1987-01-01" @default.
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- W2023277964 title "Bile Loss in the Acute Intestinal Radiation Syndrome in Rats" @default.
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- W2023277964 doi "https://doi.org/10.2307/3576866" @default.
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