Yoshiyuki Konta

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BACKGROUND Time in the therapeutic range (TTR) assesses the appropriateness of international normalized ratio of prothrombin time (PT-INR) control during warfarin therapy. We examined the status of and the factors influencing TTR in Japanese patients with non-valvular atrial fibrillation (AF). METHODS AND RESULTS We enrolled 501 AF patients (mean age, 70(More)
BACKGROUND AND PURPOSE Homocysteine (Hcy) is an independent predictor of stroke. Coupling factor 6 (CF6) is regulated by nuclear factor kappa B (NF-kappaB) signaling which is activated by Hcy. We tested the hypothesis that CF6 is elevated with Hcy in stroke. We also examined the effect of vitamin treatment on CF6 and Hcy levels. METHODS AND RESULTS The 59(More)
BACKGROUND Treatment of nocturnal hypertension has been reported to be beneficial for primary and secondary prevention of stroke. We compared the effects of angiotensin II antagonist (losartan) and angiotensin converting enzyme inhibitor (quinapril) on nocturnal blood pressure (BP) and sympathetic nervous activity in patients with hypertension and stroke.(More)
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