Abstract:
:Contrasting data partially support a certain antihypertensive efficacy of lactotripeptides derived from enzymatic treatment of casein hydrolysate. We carried out a randomized, double-blind, crossover clinical study to investigate the antihypertensive efficacy of a short-term treatment with lactotripeptides in Mediterranean subjects with normal or high-normal blood pressure (BP). We consecutively enrolled 55 untreated subjects (men:women = 30:25), 40.3 ± 9.8 years old, with normal or high-normal BP. After 4 weeks of dietary standardization, they were allocated to treatment with a fruit juice containing 3 mg of added Ile-Pro-Pro/Val-Pro-Pro lactotripeptides or with placebo for 4 weeks. After a 4-week washout period, they were then assigned to the alternative treatment for a further period of 4 weeks. Overall, no significant difference has been observed in office BP comparing baseline data with those posttreatment. Repeating the analysis by basal BP level, a mild but significant reduction in systolic BP (-1.7 ± 2.3 mm Hg; t = 3.5, P = .002) has been observed only in subjects with high-normal BP after treatment with lactotripeptides. With regard to 24-hour BP measurement, after lactotripeptide treatment only, the subjects experienced a significant reduction in diurnal diastolic BP (-1.6 ± 5.4 mm Hg; P = .042), diurnal mean BP (-2.1 ± 5.9 mm Hg; P = .19), and 24-hour (-5.4 ± 14.2 mm Hg; P = .011) and diurnal (-7.1 ± 19.2%; P = .014) diastolic BP value measurements relative to normal values. No modification has been observed in relation to plasma renin activity and aldosteronemia. In conclusion, diurnal diastolic BP is significantly reduced by lactrotripeptide supplementation in untreated Mediterranean subjects with normal or high-normal BP. Office systolic BP is reduced only in subjects with high-normal BP.
journal_name
J Med Foodjournal_title
Journal of medicinal foodauthors
Cicero AF,Rosticci M,Veronesi M,Bacchelli S,Strocchi E,Melegari C,Grandi E,Borghi Cdoi
10.1089/jmf.2009.0253subject
Has Abstractpub_date
2010-12-01 00:00:00pages
1363-8issue
6eissn
1096-620Xissn
1557-7600journal_volume
13pub_type
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