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Pentoxifylline interrupts early gene activation for tumor necrosis factor, interleukin-1, and interleukin-6 production and improves survival from experimental sepsis. These effects can alter nitrogen loss during critical illness. To determine the dose-dependent influence of pentoxifylline on nitrogen loss, 44 male Sprague-Dawley rats (220 to 265 g) were randomized to receive parenteral nutrition only...
N-methylhistidine (3-meH) is endogenously released during muscle catabolism and serves as a marker of protein turnover. In rats > 85% of 3-meH is excreted in the urine as the N-acetyl derivative. It has been reported that the percent of non-acetylated 3-meH (NA-3-meH) varies minimally with stress. To further evaluate these reports, we randomized 39 male Sprague-Dawley rats (157-213 g) to receive...
Sixty male Sprague-Dawley rats were randomized to receive parenteral nutrition (PN) only; PN plus continuous infusion of Escherichia coli 026:B6 lipopolysaccharide (PN + LPS) at 6 mg kg -1 d -1 ; or PN plus LPS plus a continuous infusion of the α-adrenergic antagonist phentolamine (PN + LPS + PHEN) at 5 mg kg -1 d -1 or 20 mg kg -1 ...
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