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Cortical surface evoked potentials (SEPs) are larger during sleep and characterize a sleep-like state in cortical columns. Since tumor necrosis factor alpha (TNF) may be involved in sleep regulation and is produced as a consequence of waking activity, we tested the hypothesis that direct application of TNF to the cortex will induce a sleep-like state within cortical columns and enhance SEP amplitudes...
. Objective: This study investigated the inhibitory mechanism of hyaluronan (HA) on lipopolysaccharide (LPS)-stimulated production of proinflammatory cytokines in U937 macrophages. Methods: HA was added to U937 macrophage cultures in the presence of LPS, with or without pretreatment with anti-intercellular adhesion molecule-1 (ICAM-1) antibody. Secreted levels of tumor necrosis factor α (TNFα),...
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