Publications by authors named "Norihito Okina"

The ratio of serum acylcarnitines to free carnitines (AC/FC) reflects impaired cardiomyocyte β-oxidization. The effect of heart failure (HF) treatment on AC/FC remained unclear. This pilot study retrospectively examined treatment-induced AC/FC changes in patients with HF with preserved ejection fraction (HFpEF) and HF with reduced ejection fraction (HFrEF) in 148 consecutive inpatients undergoing echocardiography and carnitine measurement at admission and discharge.

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Angiotensin-converting enzyme 2 (ACE2) protects against organ damage in hypertension and cardiovascular diseases by counter regulating the renin-angiotensin system (RAS). ACE2 is also the receptor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Based on the claim that RAS inhibitors (RASIs) cause ACE2 overexpression in some animal experiments, concerns have arisen that RASIs may aggravate SARS-CoV-2 infection and coronavirus disease-2019 severity in RASI-treated patients.

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Controlling blood pressure is essential for prevention of events after acute aortic dissection (AAD). However, in some instances a cardiac event occurs despite controlled blood pressure, and its prediction is difficult. We continuously monitored C-reactive protein (CRP) in patients receiving medical treatment for AAD and retrospectively examined the utility of CRP measurement for prediction of in-hospital events.

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