Decreased erythrocyte cholesterol/phospholipid ratio in untreated patients with essential hypertension

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Abstract
The erythrocyte cholesterol/phospholipid ratio was determined in eight patients with untreated essential hypertension and compared with that of eight age-matched control subjects. The ratio was significantly lower in patients (Wilcoxon's paired rank test; P less than 0.01), and a correlation existed between the ratio and serum cholesterol concentration in patients (r = 0.63) but not in controls (r = 0.02). A reduction in the cholesterol/phospholipid ratio may play a direct role in destabilizing the plasma membrane, which will in turn result in an increase in membrane permeability in essential hypertension.