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There is growing evidence that an oxidant stress contributes to the deleterious effects of bacterial lipopolysaccharide (LPS). The present study evaluated the ability of the antioxidant, U74389, to prevent the depression of vascular reactivity caused by LPS. Aortic rings taken from rats given LPS showed a depression of maximum force in response to phenylephrine that was reversed by an inhibitor...
The depression of vasoconstrictor responsiveness caused by bacterial lipopolysaccharide (LPS) is mediated, in part, by the induction of nitric oxide synthase (NOS) and the resultant increase in nitric oxide production by vascular smooth muscle. The present study evaluated the ability of the antioxidant, diethyldithiocarbamate (DDTC), to attenuate the LPS-stimulated induction of NOS in cultured vascular...
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