title: Effect of telmisartan on ambulatory blood pressure monitoring, plasma brain natriuretic peptide, and oxidative status of serum albumin in hemodialysis patients.
abstract: The effect of telmisartan on ambulatory blood pressure, plasma neurohormonal parameters, and oxidation of serum albumin has not been investigated in hemodialysis (HD) patients. Thirteen hypertensive HD patients were treated with 40 mg telmisartan once daily, and 24-h ambulatory blood pressure monitoring was performed after 0, 4, and 8 weeks of treatment. Plasma renin activity, plasma aldosterone concentration (PAC), brain natriuretic peptide (BNP) level, and serum oxidized albumin level were determined at the same time points. Serum telmisartan concentration was also measured at 4 and 8 weeks. Telmisartan significantly reduced systolic blood pressure and diastolic blood pressure (both awake and sleeping) after 4 weeks, and these pressures showed a further significant decrease after 8 weeks. Plasma levels of aldosterone, BNP, and serum oxidized albumin were markedly decreased after 4 weeks and these lower levels were maintained at 8 weeks. The trough serum telmisartan concentration was not significantly different at 8 weeks compared with 4 weeks. Throughout the treatment period, there were no significant adverse effects. Telmisartan effectively lowers blood pressure and reduces PAC, BNP, and oxidative stress and is safe and well-tolerated by HD patients. A long-term study in a large population is required to determine the influence of telmisartan therapy on cardiovascular mortality and morbidity in HD patients.
authors: Department of Nephrology, Faculty of Medical and Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.
authors: Hidetaka
authors: H
authors: Shimada
authors: Kenichiro
authors: K
authors: Kitamura
authors: Makoto
authors: M
authors: Anraku
authors: Taku
authors: T
authors: Miyoshi
authors: Masataka
authors: M
authors: Adachi
authors: Do Gia
authors: DG
authors: Tuyen
authors: Shiho
authors: S
authors: Wakamatsu
authors: Hiroshi
authors: H
authors: Nonoguchi
authors: Motoko
authors: M
authors: Tanaka
authors: Kimio
authors: K
authors: Tomita