Anna Maruyama
Osaka University
22 Papers
168 Citations
Anna Maruyama is an academic researcher from Osaka University. The author has contributed to research in topics: Blood pressure & Angiotensin II. The author has an hindex of 8, co-authored 22 publications.
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Papers
The Seasonal Variation of Blood Pressure in Patients with Essential Hypertension
Takeshi Hata,Toshio Ogihara,Anna Maruyama,Hiroshi Mikami,Mitsuaki Nakamaru,Toru Naka,Yuichi Kumahara,Charles A. Nugent +7 more
TL;DR: The blood pressure of patients with essential hypertension has a seasonal variation with higher pressures in the winter than in the summer, and an increased load of sodium presented to the kidney for excretion may be contributing factors in the rise in blood pressure in winter.
179
Hormonal responses to long‐term converting enzyme inhibition in hypertensive patients
Toshio Ogihara,Anna Maruyama,Takeshi Hata,Hiroshi Mikami,Mitsuaki Nakamaru,Toru Naka,Hironori Ohde,Yuichi Kumahara +7 more
TL;DR: It is concluded that another mechanism, such as enhancement of renal or local kinin‐prostaglandin system, as well as suppression of the renin‐angiotensin‐aldosterone system may be involved in the long‐term efficacy of captopril.
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The Effect of Aging on Urinary Kallikrein Excretion in Normotensive Subjects and in Patients with Essential Hypertension
Toru Naka,Toshio Ogihara,Takeshi Hata,Anna Maruyama,Hiroshi Mikami,Mitsuaki Nakamaru,Seiji Gotoh,Kazuko Masuo,Hironori Ohde,Keiichi Iwanaga,Yuichi Kumahara +10 more
TL;DR: The age-related decrease of U(kal)V in normal subjects may be due to the reduced activity of the renin-angiotensin-aldosterone system, which is related to the pathogenesis or pathophysiology of essential hypertension.
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Effect of Age on Active and Inactive Plasma Renin in Normal Subjects and in Patients with Essential Hypertension
Mitsuaki Nakamaru,Toshio Ogihara,Jitsuo Higaki,Takeshi Hata,Anna Maruyama,Hiroshi Mikami,Toru Naka,Keiichi Iwanaga,Yuichi Kumahara,Kazuo Murakami,Kazuo Murakami +10 more
TL;DR: The data show that an acute stimulation with furosemide and ambulation affects mainly the active form of plasma renin, and the effect of age on inactive renin in normal subjects may be different from that in patients with essential hypertension.
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Studies on the renin-angiotensin-aldosterone system in elderly hypertensive patients with an angiotensin II antagonist.
Toshio Ogihara,Takeshi Hata,Anna Maruyama,Hiroshi Mikami,Mitsuaki Nakamaru,Takashi Mandai,Yuichi Kumahara +6 more
TL;DR: The angiotensin-aldosterone system in elderly essential hypertensive patients is suppressed and is presumably not responsible for their elevated blood pressures.
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