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  • Title: Measurement of soluble Fas antigen and ligand in circulating serum and intra-abdominal or cerebrospinal fluid during gastrointestinal or cerebrovascular surgery.
    Author: Iwama H, Kato M, Ohmori S, Akimaru K, Tsutsumi K, Tohma J, Nakamura N.
    Journal: J Crit Care; 2000 Sep; 15(3):119-25. PubMed ID: 11011825.
    Abstract:
    PURPOSE: Soluble Fas antigen (sFas) and ligand (sFasL), which are associated with apoptosis, have not been evaluated in gastrointestinal or cerebrovascular surgery. The aim of this study was to measure these substances in serum, intra-abdominal fluid, or cerebrospinal fluid, and to speculate a pathophysiologic role for Fas-FasL apoptosis in surgery. MATERIALS AND METHODS: Arterial blood and intraabdominal or cerebrospinal fluid were collected at intervals from 27 gastrointestinal surgical patients, 10 cerebrovascular surgical patients, and 10 spinal anesthesia patients. RESULTS: Serum sFas levels did not change during and after surgery. Intra-abdominal and cerebrospinal sFas levels were identical to and lower than those in serum. Serum sFasL levels did not change during surgery, but decreased after surgery. Intra-abdominal and cerebrospinal sFasL levels were higher than and identical to those in serum. In spinal anesthesia, cerebrospinal sFas and sFasL levels were lower than those in serum. CONCLUSIONS: Serum sFasL decreases after surgery, whereas intra-abdominal or cerebrospinal sFasL increases, although sFas in each site does not change, suggesting redistribution of activated lymphocytes into local surgical wounds and induction of apoptosis in this site.
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