Letters NicoraNdil as a cause of periNeal ulceratioN. editor, We report a case of extensive perineal ulceration that healed spontaneously on discontinuation of nicorandil therapy, avoiding major perineal reconstructive surgery. We note a previous report of penile ulceration related to nicorandil therapy in this journal and wish to remind readers to consider nicorandil as a causative agent for a...

INTRODUCTION Nicorandil has vasodilatory effects on both the epicardial coronary arteries and the coronary microvasculature, thereby increasing coronary blood flow. Intravenous administration of nicorandil can be applicable for fractional flow reserve (FFR) measurement as a hyperaemic agent and a possible alternative to adenosine. However, the effectiveness of intravenous nicorandil infusion fo...

BACKGROUND Nicorandil, as a selective potassium channel opener, has dual action including coronary and peripheral vasodilatation and cardioprotective effect through ischemic preconditioning. Considering those characteristics, nicorandil was suggested to reduce the degree of microvascular dysfunction. METHODS Thirty-two patients with ST-elevation myocardial infarction undergoing primary percut...

Nicorandil is a nicotinamide nitrate used as an antianginal agent. It has two modes of action. First, by opening adenosine triphosphate–dependent potassium channels, nicorandil increases transmembrane potassium conductance and relaxes peripheral and coronary arterioles. Second, with its nitrate moiety, nicorandil increases intracellular concentrations of cGMP, resulting in peripheral vein and c...

Although nicorandil, N-(2-hydroxyethyl) nicotinamide dinitrate, is a nitrate ester, its cardiovascular action differs from that of nitrate compounds in several aspects. In this quantitative angiographic study, the acute coronary dilating effect of intracoronary nicorandil (0.25, 0.50, 1.0 mg) was compared with that of isosorbide dinitrate (ISDN; 1.0 mg) in 46 patients with or without ischemic h...

BACKGROUND Penile ulceration in older patients is commonly neoplastic or infective. However, there are rarer causes of these ulcerations that we have to exclude. We present a rare complication of penile ulceration secondary to nicorandil, a nicotinamide ester. CASE PRESENTATION An 86-year-old white British man was referred with a bloody discharge from under his phimotic foreskin and a lump on...

BACKGROUND Dystrophin-deficient cardiomyopathy is a growing clinical problem without targeted treatments. We investigated whether nicorandil promotes cardioprotection in human dystrophin-deficient induced pluripotent stem cell (iPSC)-derived cardiomyocytes and the muscular dystrophy mdx mouse heart. METHODS AND RESULTS Dystrophin-deficient iPSC-derived cardiomyocytes had decreased levels of e...

Cardiac hypertrophy is a compensatory mechanism that occurs in conjunction with cardiovascular diseases. Although hypertrophy of the myocardium provides certain benefits during the early stages of cardiovascular disease, prolonged hypertrophy is potentially harmful to the heart and can result in arrhythmia and heart failure. The aim of this study was to investigate whether an ATP‑sensitive K+ (...

BACKGROUND Most of the deaths among patients with severe pulmonary arterial hypertension (PAH) are caused by progressive right ventricular (RV) pathological remodeling, dysfunction, and failure. Nicorandil can inhibit the development of PAH by reducing pulmonary artery pressure and RV hypertrophy. However, whether nicorandil can inhibit apoptosis in RV cardiomyocytes and prevent RV remodeling h...

BACKGROUND The ATP-sensitive potassium channel (K(ATP)) opener nicorandil used instead of potassium in hypothermic cardioplegia significantly improves preservation of cardiac function and energetics in the in situ heart preparation. The present study, therefore, examines the effect of nicorandil at different temperatures and the role of sarcolemmal and mitochondrial K(ATP) channels under ex viv...