Abstract
The effect of plant sterol (PS) enriched matrices on lipid profile has been evaluated in statin-treated individuals, with LDL-C concentrations between 3.35mmol/L and 4.90mmol/L, but studies in the elderly are scarce. In this study the additional effect of a low-fat PS-enriched fermented milk (PS-FM) on cholesterol metabolism markers and serum lipids was evaluated in the elderly on stable statin therapy with baseline LDL-C<3.35mmol/L. Thirty-five individuals (88.6% women; 81±8years old; BMI 29.9±6.0kg/m(2)), living in elderly nursing care facilities were placed on a daily intake of 2g PS-FM for 6weeks, in addition to their statin monotherapy. A fasting blood sample was collected at baseline (t0), after 2 consecutive periods of 3weeks intake (t1 and t2), and after 6weeks of washout (t3), for the analysis of serum lipid profile and cholesterol synthesis (lathosterol, desmosterol) and absorption (sitosterol, campesterol and cholestanol) markers. PS-FM consumption led to a LDL-C reduction of 0.15mmol/L (t1) and 0.27mmol/L (t2) from baseline (P<0.05). Serum campesterol and sitosterol (P<0.001) increased (t0-t1; t0-t2), reflecting PS intake and contributing to the inhibition of cholesterol intestinal absorption, leading to a decrease ...Continue Reading
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