[Renal function and hemodynamics in hypertension].

H Kumagai; T Saruta

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PubMed · 9284414

[Renal function and hemodynamics in hypertension].

H Kumagai·T Saruta

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Abstract

Hypertension is one of important causes of impairment in renal function. Glomerular filtration rate (GFR) remains stable while renal blood flow (RBF) declines in patients with long-term essential hypertension, resulting in an increased filtration fraction. Myogenic response of afferent arterioles and tubuloglomerular feedback to maintain RBF and GFR and sodium homeostasis can be impaired in salt-sensitive hypertension, whereas they are relatively normal in essential hypertension and its rat model. Position of pressure-natriuresis curve is shifted to the right without alteration in the slope of the curve in essential (non-salt-sensitive) hypertension, whereas the slope is significantly decreased in salt-sensitive hypertension, such as nephritis-related hypertension and diabetic nephropathy because of decreased ultrafiltration coefficient and increased sodium reabsorption.

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Animals Feedback Glomerular Filtration Rate Hemodynamics Homeostasis Hypertension Kidney Natriuresis Rats Renal Circulation Sympathetic Nervous System English Abstract Journal Article Review

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H Kumagai, T Saruta. 1997. [Renal function and hemodynamics in hypertension].. https://pubmed.ncbi.nlm.nih.gov/9284414/

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