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- W1556033423 abstract "Summary β-Glucans are glucose polymers with a variety of stimulatory effects on the immune system. The objective of this study was to determine the effect of prophylactic oral administration of soluble Saccharomyces cerevisiae-derived β-1,3/1,6-glucan (SBG) on the outcome of experimental endotoxaemia and shock-associated organ injury. Male Wistar rats were pretreated with SBG orally (SBGpo, 20 mg/kg/day) for 14 days, subcutaneously (SBGsc, 2 mg/kg/day) for 3 days, or vehicle (placebo). Rats were anaesthetized and subjected to endotoxaemia by intravenous infusion of Escherichia coli lipopolysaccharide (LPS) (6 mg/kg) or saline infusion (sham). We observed significant levels of plasma β-glucan in the SBGpo group (P < 0·5), although the SBGsc group had levels approximately 40-fold higher despite a 10-fold lower dose. SBG prophylaxis caused enhanced blood pressure recovery following LPS-induced blood pressure collapse. Oral treatment with SBG attenuated the LPS-induced rise in plasma creatinine levels (P < 0·05), indicating protection against renal injury. SBG also attenuated the plasma levels of aspartate aminotransferase and alanine aminotransferase (SBGpo, P < 0·01; SBGsc, P < 0·01), indicating protection against LPS-induced hepatic injury. A moderate increase in baseline interleukin (IL)-1β levels was observed in the SBGsc group (P < 0·05). In the LPS-challenged rats, plasma levels of proinflammatory cytokines was moderately reduced in both SBG-treated groups compared to placebo. SBG treatment, particularly oral administration, had a striking effect on the haemodynamics of LPS-treated rats, although only a minute fraction of the orally administered β-glucan translocated to the circulation. Enhanced organ perfusion may thus be responsible for the attenuated levels of indicators of kidney and liver injury seen in SBG-treated rats." @default.
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- W1556033423 date "2007-01-26" @default.
- W1556033423 modified "2023-10-17" @default.
- W1556033423 title "Oral and systemic administration of β-glucan protects against lipopolysaccharide-induced shock and organ injury in rats" @default.
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- W1556033423 doi "https://doi.org/10.1111/j.1365-2249.2006.03320.x" @default.
- W1556033423 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1868851" @default.
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