Tyrone McKenna

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The modulation of vascular function by guanosine 3',5'-cyclic monophosphate (cGMP) in sepsis was examined in isolated rat aortas. Basal cGMP content was similar in aortas from sham-operated [3.6 +/- 0.8 (SE) pmol cGMP/mg protein] and from septic (3.2 +/- 1.0) rats. Acetylcholine-induced increases in cGMP content were significantly greater in aortas from(More)
Treatment of vascular tissue with lipopolysaccharide (LPS) in vitro induces hyporesponsiveness to contractile agonists. We investigated whether protein kinase C (PKC) transduces the LPS signal into contractile dysfunction. Rat aortic tissue was incubated .5-18 h with LPS (10 or 30 ng/mL) or alpha- and beta-phorbol 12,13-dibutyrate (PDB, .1 or 1 microM),(More)
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