NO-independent mechanism mediates tempol-induced renal vasodilation in SHR

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Why the study?

Does tempol improve renal hemodynamics and reduce ANG II sensitivity in spontaneously hypertensive rats?

Structured PICO

Does tempol improve renal hemodynamics and reduce ANG II sensitivity in spontaneously hypertensive rats?

Population

10- to 12-wk-old spontaneously hypertensive rats (SHR) and Sprague-Dawley (SD) rats

Intervention

Tempol (1 mM) in drinking water for 5-15 days, with subsequent ANG II and L-NAME administration

Comparator

Age-matched SD and SHR controls not receiving tempol

Outcome

Renal vascular resistance (RVR) and renovascular responses to ANG IIsurrogate

Tempol induces NO-independent renal vasodilation and normalizes exaggerated renovascular ANG II sensitivity in spontaneously hypertensive rats.

No takes yet. Share an insight, caveat, or question.

Tempol's renal effects in SHR warrant further mechanistic study; leaves open any translation to human hypertension management.

Richelieu et al. (2005) studied this question.

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