These studies show that uridine supplementation can quantitatively prevent D-galactosamine sensitization to lethal endotoxin shock. This observation serves to discount the possibility that mechanisms which do not involve uridine nucleotide depletion may contribute even marginally to the basic biochemical mechanism of D-galactosamine sensitization.
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References
1.
Galanos C., Freudenberg M.A., Reutter W.Galactosamine-induced sensitization to the lethal effects of endotoxin . Proc Natl Acad Sci USA1979; 76: 5939-5943.
2.
Galanos C., Freudenberg M.A., Katschinski T., Salomao R., Mossmann H., Kumazawa Y.Tumor necrosis factor and host response to endotoxin. In: Ryan J.L., Morrison D.C. (eds) Bacterial Endotoxic Lipopolysaccharides, vol II. Boca Raton, FL: CRC Press, 1992; 75-104.
3.
Silverstein R. , Christoffersen C.A., Morrison D.C.Modulation of endotoxin lethality in mice by hydrazine sulfate. Infect Immun1989; 57: 2072-2078.
4.
Silverstein R. , Norimatsu M., Morrison D.C.Fundamental differences during Gram-positive versus Gram-negative sepsis become apparent during bacterial challenge of D-galactosamine-treated mice. J Endotoxin Res1997; 4: 173-181.
5.
Bucklin S.E. , Morrison D.C.Differences in therapeutic efficacy among cell wall-active antibiotics in a mouse model of Gram-negative sepsis. J Infect Dis1995; 172: 1519-1527.
6.
Freudenberg M.A., Keppler D., Galanos C.Requirement for lipopolysaccharide-responsive macrophages in galactosamine-induced sensitization to endotoxin. Infect Immun1986; 51: 891-895.
7.
Gonzalez J.C. , Johnson D.C., Morrison D.C., Freudenberg M.A., Galanos C., Silverstein R.Endogenous and exogenous glucocorticoids have different roles in modulating endotoxin lethality in D-galactosamine-sensitized mice. Infect Immun1993; 61: 970-974.
8.
Galanos C., Freudenberg M.A.Mechanisms of endotoxin shock and endotoxin hypersensitivity. Immunobiology1993; 187: 346-356.
9.
Silverstein R., Turley B.R., Christoffersen C.A., Johnson D.C., Morrison D.C.Hydrazine sulfate protects D-galactosamine-sensitized mice against endotoxin and tumor necrosis factor/cachectin lethality: evidence of a role for the pituitary. J Exp Med1991; 173: 357-365.
10.
Erickson S.L. , de Sauvage F.J., Kikly K. et al. Decreased sensitivity to tumour necrosis factor but normal T-cell development in TNF receptor-2-deficient mice. Nature1994; 372: 560-563.
11.
Pasparakis M., Alexopoulou L., Episkopou V., Kollias G.Immune and inflammatory responses to TNF α-deficient mice: a critical requirement for TNF α in the formation of primary B cell follicles, follicular dendritic cell networks and germinal centers, and in the maturation of the humoral immune response . J Exp Med1996; 184: 1397-1411.
12.
Silverstein R., Johnson W.M., Bucklin S.E., Johnson D.C.The protein kinase c activator PMA modulates LPS lethality in normal mice and protects against LPS lethality in D-galactosamine-sensitized mice. J Endotoxin Res1995; 3: 29-37.
13.
Siegel S.Nonparametric statistics. New York: McGraw-Hill, 1956; 96-100.