RESULTS	As expected , endotoxin significantly increased rectal temperature , the plasma levels of cortisol , tumor necrosis factor-alpha ( TNF-alpha ) , the soluble TNF receptors p55 and p75 , Interleukin ( IL ) -6 , the IL-1 receptor antagonist ( RA ) , leukocyte , and granulocyte counts in both sleeping and sleep-deprived subjects , whereas lymphocyte and monocyte counts were transiently reduced .\