Key result
Endothelin-1 produced a sustained decrease in cortical blood flow (-30%) and a transient increase in medullary blood flow (+35%) via ETA and ETB receptors, respectively.
Why the study?
Does endothelin-1 differentially regulate renal cortical and medullary blood flow in anesthetized rats?
Population
Anesthetized male Wistar rats
Comparison
Bolus injection of endothelin-1, with or without… vs Baseline or control conditions
Design
Preclinical
Authors
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Animal data on region-specific ET-1 renal flow effects remain preclinical; leaves open human translation.
Does endothelin-1 differentially regulate renal cortical and medullary blood flow in anesthetized rats?
Endothelin-1 exerts opposite, receptor-specific effects on renal cortical and medullary circulation, highlighting complex intrarenal blood flow regulation.
Gurbanov et al. (1996) studied this question. endothelin-1 (ET-1) was evaluated on medullary and cortical blood flow (MBF and CBF). Endothelin-1 produced a sustained decrease in cortical blood flow (-30%) and a transient increase in medullary blood flow (+35%) via ETA and ETB receptors, respectively.
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