Key result
Oral low-dose quercetin significantly reduced total cholesterol, very low-density lipoprotein, and prevented increases in left ventricular mass in hypercholesterolemic Apo E knockout mice.
Why the study?
Does oral quercetin reduce plasma cholesterol and prevent left ventricular hypertrophy in Apo E(-/-) hypercholesterolemic mice?
Does oral quercetin reduce plasma cholesterol and prevent left ventricular hypertrophy in Apo E(-/-) hypercholesterolemic mice?
Absolute Event Rate: 88.14% vs 92.42%
p-value: p=<0.05
Dietary polyphenolic compounds like quercetin may effectively modulate plasma cholesterol and prevent maladaptive myocardial remodeling associated with hypercholesterolemia.
Quercetin effects in mice should not change practice; leaves open whether benefits extend to human hypercholesterolemia.
Hypercholesterolemia is a risk factor for the development of hypertrophic cardiomyopathy. Nevertheless, there are few studies aimed at determining the effects of dietary compounds on early or mild cardiac hypertrophy associated with dyslipidemia. Here we describe left ventricular (LV) hypertrophy in 12 week-old Apo E(-/-) hypercholesterolemic mice. The LV end diastolic posterior wall thickness and overall LV mass were significantly increased in Apo E(-/-) mice compared with wild type (WT) controls. Fractional shortening, LV end diastolic diameter, and hemodynamic parameters were unchanged from WT mice. Oral low dose quercetin (QCN; 0.1 µmol QCN/kg body weight for 6 weeks) significantly reduced total cholesterol and very low density lipoprotein in the plasma of Apo E(-/-) mice. QCN treatment also significantly decreased LV posterior wall thickness and LV mass in Apo E(-/-) mice. Myocardial geometry and function were unaffected in WT mice by QCN treatment. These data suggest that dietary polyphenolic compounds such as QCN may be effective modulators of plasma cholesterol and could prevent maladaptive myocardial remodeling.
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Ulasova et al. (2013) studied Hypercholesterolemia and Left Ventricular Hypertrophy (n=48). Quercetin vs. Control diet (gelatin pellets without quercetin) was evaluated on Left ventricular mass (corrected) (p=<0.05). Oral low-dose quercetin significantly reduced total cholesterol, very low-density lipoprotein, and prevented increases in left ventricular mass in hypercholesterolemic Apo E knockout mice.
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