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July 1, 1995Hypertension

Left Ventricular Fibrosis in Renovascular Hypertensive Rats

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Why the study?

Do spironolactone and losartan reduce myocardial fibrosis in a rat model of renovascular hypertension?

Population

Goldblatt model of two-kidney, one clip hypertension in the rat

Comparison

Spironolactone or losartan vs Untreated two-kidney, one clip hypertensive rats

Design

Preclinical

Authors

ANAntonino NicolettiInsermDHDidier HeudesUniversité Claude Bernard Lyon 1NHN HinglaisHôpital Necker-Enfants Malades

Discussion

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Overview

Should not change clinical practice; leaves open collagen subtype-specific targeting in human hypertension.

Structured PICO

Do spironolactone and losartan reduce myocardial fibrosis in a rat model of renovascular hypertension?

P
Population
Goldblatt model of two-kidney, one clip hypertension in the rat
I
Intervention
Spironolactone (aldosterone antagonist) or losartan (angiotensin II antagonist)
C
Comparator
Untreated two-kidney, one clip hypertensive rats
O
Outcome
Myocardial fibrosis assessed by computer-assisted morphometry (collagen types I and III)surrogate

Angiotensin II and aldosterone independently mediate different types of myocardial collagen deposition in renovascular hypertension, with angiotensin II driving type I and aldosterone driving type III collagen.

Cite This Study

Nicoletti et al. (1995) studied this question.

synapsesocial.com/papers/6a1925fec27e07dcc0d94debhttps://doi.org/10.1161/01.hyp.26.1.101
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Characterization of angiotensin II receptors in cultured adult rat cardiac fibroblasts. Coupling to signaling systems and gene expression.1994 · 246 citations
  2. 2Reactive and reparative myocardial fibrosis in arterial hypertension in the rat1992 · 279 citations
  3. 3Cardiac myocyte necrosis induced by angiotensin II.1991 · 388 citations