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  • Title: BSP clearance as the most reliable criterion of hepatic dysfunction after jejunoileal bypass in the rat: arguments in favor of the existence of a pathogenetic mechanism involving a transient malnutrition state.
    Author: Grenier JF, Marescaux J, Stock C, Coumaros G, Sava P, Michel F.
    Journal: Dig Dis Sci; 1981 Apr; 26(4):334-41. PubMed ID: 7238262.
    Abstract:
    In rats subjected to 90% jejunoileal by-pass or in sham-operated controls, liver function was compared to plasma nutritional state and adaptation of the intestine in continuity over a period of 3 months. While the plasma levels of GOT, GPT, and esterases A and C as cholinesterase C did not differ in either group, the percentage of retention of BSP increased until 8 weeks, then returned progressively to control values 12 weeks after small-bowel bypass. In contrast, plasma nonesterified fatty acid levels decreased significantly until 6 weeks, then recovered control values over the following periods. Plasma total protein and albumin levels also diminished after jejunoileal bypass, the most marked decrease being at the 4th postoperative week. The increase in villus size following the intestinal bypass was considered pronounced for the ileum between the 8th and the 12th week. These results suggest that BSP clearance is the most reliable criterion for hepatic dysfunction in the rat subjected to a jejunoileal bypass. In addition, the parallelism between the variations of BSP clearance, intestinal adaptation, and plasma nutritional state argue for the "nutritional" theory as the most probable explanation for the formation of hepatic lesions.
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