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J Surg Res. 1987 May;42(5):565-9.

Bile flow--an index of ischemic injury.


Bile formation is an active secretory process involving bile salt-dependent and -"independent" mechanisms. This study was performed to determine the effect of selected periods of warm ischemia on biliary secretion. Rats were studied using an in situ liver perfusion system after stabilization of bile flow with intravenous sodium taurocholate. Bile flow remained stable in control livers and ceased during ischemic periods of 15 or 25 min. After reperfusion of 15-min ischemic livers, bile flow was depressed but returned to normal by 45 min of reperfusion. After 25 min of ischemia, bile flow remained depressed. A similar depression in bile salt secretion was observed. These studies indicate that both bile flow and bile salt secretion reflect the degree of ischemia in this isolated perfused system, and further use of this model for the investigation of biliary flow as an index of ischemic injury is warranted.

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