Why the study?
Do different antihypertensive therapies (minoxidil, propranolol, methyldopa) reverse cardiac hypertrophy in spontaneously hypertensive rats?
Population
Spontaneously hypertensive rats (SHR) and normotensive Wistar controls (NR)
Comparison
Minoxidil, propranolol, or methyldopa vs Untreated controls
Design
Preclinical
Key result
Minoxidil controlled blood pressure (130 vs 187 mmHg, P<0.001) but did not reduce ventricular weight, indicating blood pressure control may not be the sole factor for reversing cardiac hypertrophy.
Authors
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BP lowering may not suffice to reverse hypertrophy; leaves open differential effects of antihypertensive agents on ventricular mass.
Do different antihypertensive therapies (minoxidil, propranolol, methyldopa) reverse cardiac hypertrophy in spontaneously hypertensive rats?
Absolute Event Rate: 130% vs 187%
p-value: p=<0.001
Blood pressure control alone is not the sole factor for the reversal of cardiac hypertrophy, as different antihypertensive agents have varying effects on ventricular mass independent of blood pressure reduction.
Sen et al. (1977) studied Hypertension and cardiac hypertrophy. Minoxidil, propranolol, or methyldopa vs. Untreated controls was evaluated on Blood pressure (mmHg) (p=<0.001). Minoxidil controlled blood pressure (130 vs 187 mmHg, P<0.001) but did not reduce ventricular weight, indicating blood pressure control may not be the sole factor for reversing cardiac hypertrophy.