Why the study?
Does COX-2 knockout alter renin expression and activity in mice on normal or low-salt diets?
Population
Wild-type mice, COX-2-knockout mice, and angiotensin type 1A receptor-knockout mice
Comparison
Low-salt diet for 14 days and/or genetic… vs Wild-type mice on control diet
Design
Preclinical
Follow-up
14 days (for low-salt diet)
Authors
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Caution against extrapolating COX-2–renin effects to humans; leaves open mechanistic role in clinical renin-angiotensin modulation.
Does COX-2 knockout alter renin expression and activity in mice on normal or low-salt diets?
COX-2 in the tubulovascular contact region is a critical determinant of renin synthesis under resting conditions and mediates the stimulation of renin expression caused by low-salt intake.
Yang et al. (2000) studied this question.
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