Reduced nitric oxide release causes nitrate tolerance in the intact coronary circulation.


We investigated the possible involvement of reduced nitric oxide (NO) formation in development of nitrate tolerance in an intact organ circulation. NO formation was measured spectrophotometrically on-line in the coronary effluent of Langendorff hearts of rabbits. Short-term (3 min) infusion of glyceryl trinitrate (GTN, 40 microM) or a sydnonimine (SIN-1, 2… (More)


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