Circadian Rhythm of Renin and Aldosterone in Unilateral Renovascular Hypertension

Grim, C E

doi:10.7326/0003-4819-80-3-298

Cited by 13 publications

(4 citation statements)

References 20 publications

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“…The circadian rhythms of PRA and PAC" in the two groups coincided with previous reports (Wil¬ liams et al 1972;Katz et al 1975;Modlinger et al 1976), although there were a few exceptions (Luetscher et al 1972;Grim & Keitzer 1974). AER showed a more obvious circadian rhythm than that of PAC in the two groups.…”

Section: Discussionsupporting

confidence: 89%

“…Data on most of the circadian rhythm regarding the R-A-A system were obtained with the subjects in a continuous recumbent position in order to avoid related influences (Gordon et al 1966;Michelakis & Horton 1970;Williams et al 1972;Grim & Keitzer 1974;Vagnucci et al 1974;Katzet al 1975;Modlinger et al 1976). In our study, however, blood specimens were taken after the subjects had been in the supine position for 1 h during the waking hours to minimize the influence of the postural change.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of circadian rhythms of the renin-angiotensin-aldosterone system and electrolytes in clinically healthy young women in Fukuoka (Japan) and Minnesota (USA)

Kawasaki¹,

Uezono²,

Ueno³

et al. 1983

Acta Endocrinologica

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Circadian rhythms of the renin-angiotensin\x=req-\ aldosterone (R-A-A) system and electrolytes were evaluated in young healthy Fukuokan (Japan) and Minnesotan (USA) women. A similar protocol was used and each group remained on its usual diet. Blood was taken for 24 h at 4 h intervals from 8 a.m. during which time urine samples were also collected. The determinations in both groups were made in a laboratory in Japan. Plasma renin activity, plasma aldosterone concentration and aldosterone excretion rate showed similar circadian rhythms in both groups. However, those values at each sampling time and each span were always significantly higher in the Americans while the urinary Na and Cl excretions and blood pressure were higher in Japanese. The significant differences in the R-A-A system and blood pressure levels between these two groups may be due to the large amount of salt consumed by the Japanese.It has recently been reported that the Yanomamo Indians, a 'no-salt' culture, showed strikingly high levels of the renin-angiotensin-aldosterone (R-A-A) system (Oliver et al. 1975). The differing dietary habits of Japanese and North Americans may lead to differences in the R-A-A system as daily con¬ sumption of salt per person in Japan is habitually higher than in North America (Dahl 1972).A collaborative study between the Universities of Kyushu (Fukuoka, Japan) and Minnesota (Minnea¬ polis, USA) has already demonstrated remarkable differences in the rhythm-adjusted mean (mesor) and the circadian rhythm of plasma prolactin ) and plasma renin activity, analy¬ zed by means of the cosinor method ). In the present study, an identical proto¬ col was used for young adult Fukuokan and Minnesotan women and all chemical determinations were performed in the same laboratory. Differences in the means and the circadian rhythms of the R-A-A system and electrolytes in urine between the two groups, studied in the same season and in a com¬ parable fashion, are reported herein. Materials and Methods SubjectsTwenty young Japanese women between 20 and 21 years of age and 16 young American women, Caucasians of mixed ethnic origin, between 18 and 24 years of age were accepted for the study after a complete history and physical examination, which showed evidence of neither endocrine nor circulatory disorders and no active disea¬ ses of any nature. Subjects from Minnesota were signifi¬ cantly taller and heavier than those from Fukuoka, but did not differ in body mass index. The distribution of menstrual stage of the two groups did not differ.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Comparison of circadian rhythms of the renin-angiotensin-aldosterone system and electrolytes in clinically healthy young women in Fukuoka (Japan) and Minnesota (USA)

Kawasaki¹,

Uezono²,

Ueno³

et al. 1983

Acta Endocrinologica

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show abstract

“…Actually, PRA levels in these cases sometimes fluctuated from normal to supranormal range and vice versa in a day. These large variations of PRA in this disorder have also been reported recently by others (Grim and Keitzer 1974).…”

Section: Hyperthyroidismmentioning

confidence: 48%

Circadian Variations of Plasma Renin Activity and Plasma Osmolality in Various Physiological and Pathological States

Minai

1974

Tohoku J. Exp. Med.

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“…It is widely believed that the enhancement of renin secretion is the cause of this type of hypertension. In chronic renovascular hypertension in man (Grim et al 1974) or in animals (Pals et al 1971), however, there is some evidence that renin is involved in the maintenance of high blood pressure. The purpose of this paper is to discuss the pathophysiologic mechanisms in the chronic phase of renovascular hypertension in man.…”

mentioning

confidence: 99%

Postoperative Course of Blood Pressure and Plasma Renin Activity in Patients with Renovascular Hypertension

Otsuka

Abe

Saitô

et al. 1976

Tohoku J. Exp. Med.

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Circadian Rhythm of Renin and Aldosterone in Unilateral Renovascular Hypertension

Cited by 13 publications

References 20 publications

Comparison of circadian rhythms of the renin-angiotensin-aldosterone system and electrolytes in clinically healthy young women in Fukuoka (Japan) and Minnesota (USA)

Comparison of circadian rhythms of the renin-angiotensin-aldosterone system and electrolytes in clinically healthy young women in Fukuoka (Japan) and Minnesota (USA)

Circadian Variations of Plasma Renin Activity and Plasma Osmolality in Various Physiological and Pathological States

Postoperative Course of Blood Pressure and Plasma Renin Activity in Patients with Renovascular Hypertension

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