Assertion: renin's effect | /r/HasProperty | the fact
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Source sentences:
text: The limited antifibrotic effect of therapeutic angiotensin blockade, the fact that angiotensin blockade dramatically elevates renin levels, and recent evidence that renin has an angiotensin-independent, receptor-mediated profibrotic action led us to hypothesize that combining renin receptor inhibition and ANG II blockade would increase the antifibrotic effect of angiotensin blockade alone.