Effects of chronic administration of atrial natriuretic polypeptide on glomerular lesions in spontaneously hypertensive rats

In order to investigate the effects of atrial natriuretic polypeptides (ANP) on hypertensive glomerular lesions, ANP was administered intravenously by osmotic minipumps to 20 15-week-old male spontaneously hypertensive rats (SHRs) in a sustained hypertensive stage. ANP was infused at the rate of 100 ng/hour/rat (the ANP group). Saline was similarly administered to 19 age-matched SHRs (the control group). The rats were sacrificed on the seventh day. Semiquantitative evaluation of the renal tissue revealed no significant difference in glomerular sclerosis between the 2 groups. However, segmental hyalinosis in glomeruli was more accentuated in the ANP group than in the control group. As it is suggested that hyalinosis in glomeruli is related to the elevated intracapillary pressure, the results of the present work were in accordance with reports that ANP increases glomerular capillary pressure by preglomerular vasodilation and postglomerular vasoconstriction. It should be determined whether endogenous ANP works as an aggravating factor for glomerular injuries in the natural course of hypertension. © 1990, International Heart Journal Association. All rights reserved.

Авторы
Kimura K.1 , Hirata Y.1 , Matsuoka H.1 , Sugimoto T.1 , Drozdova G. 2 , Ishii M.3 , Kangawa K.4 , Matsuo H.4
Редакторы
-
Журнал
Издательство
-
Номер выпуска
2
Язык
Английский
Страницы
227-236
Статус
Опубликовано
Подразделение
-
Номер
-
Том
31
Год
1990
Организации
  • 1 Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo, Tokyo, Tokyo, Japan
  • 2 People's Friendship University, Medical Faculty, Department of Pathological Physiology, Moscow, U.S.S.R., Moscow, Russian Federation
  • 3 Second Department of Internal Medicine, Faculty of Medicine, Yokohama City University, Yokohama, Japan
  • 4 Second Department of Biochemistry, Miyazaki Medical College, Miyazaki, Miyazaki, Japan
Ключевые слова
Atrial natriuretic polypeptide; Glomerular hyalinosis; Glomerular hypertension; Osmotic minipump; Spontaneously hypertensive rat
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/1167/