Key result
In vivo, BK(Ca) channels do not play a major role in controlling basal renal tone or buffering vasoconstrictor responses to angiotensin II and norepinephrine in rats.
Why the study?
Do BK(Ca) channels regulate basal renal vascular tone or buffer vasoconstrictor responses in vivo?
Population
Rat model (in vivo)
Comparison
Infusion of BK channel modulators and vasoactive… vs Baseline conditions
Design
Preclinical
Authors
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Questions relevance of BK(Ca) channels to rat renal vascular control; challenges in vitro assumptions and leaves open human translation.
Do BK(Ca) channels regulate basal renal vascular tone or buffer vasoconstrictor responses in vivo?
BK(Ca) channels do not play a major role in controlling basal renal vascular tone or buffering vasoconstrictor responses in vivo, though they can be pharmacologically activated.
Magnusson et al. (2006) studied this question. BK(Ca) channel modulators (TEA, IBT, NS-1619) vs. baseline was evaluated on Renal blood flow (RBF). In vivo, BK(Ca) channels do not play a major role in controlling basal renal tone or buffering vasoconstrictor responses to angiotensin II and norepinephrine in rats.
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