Key result
In CuZnSOD-deficient mice, 1 nmol/L Angiotensin II reduced acetylcholine-mediated relaxation to 44% compared to 93% with vehicle, showing CuZnSOD limits Ang II-induced vascular dysfunction.
Absolute Event Rate: 44% vs 93%
CuZnSOD limits Angiotensin II-mediated impairment of endothelial function, and loss of one copy of the CuZnSOD gene is sufficient to enhance Ang II-induced vascular dysfunction.
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Does not inform clinical hypertension management; extends preclinical evidence on CuZnSOD protection against Ang II endothelial effects.
Didion et al. (2005) studied Angiotensin II-induced endothelial dysfunction. Angiotensin II vs. Vehicle was evaluated on Relaxation to acetylcholine. In CuZnSOD-deficient mice, 1 nmol/L Angiotensin II reduced acetylcholine-mediated relaxation to 44% compared to 93% with vehicle, showing CuZnSOD limits Ang II-induced vascular dysfunction.
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