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Title: Dietary flavonoids added to pharmacological antihypertensive therapy are effective in improving blood pressure
Author: de Jesus Romero-Prado, M.M.
Curiel-Beltran, J.A.
Miramontes-Espino, M.V.
Cardona-Munoz, E.G.
Rios-Arellano, A.
Balam-Salazar, L.-B.
Issue Date: 2015
Abstract: Epidemiological studies have suggested that the daily intake of flavonoids is associated with a decreased risk of developing cardiovascular disease. Our purpose was to evaluate the effect of the addition of dietary flavonoids (DF) to antihypertensive treatment (AHT), based on telmisartan (Tms) or captopril (Cpr), on blood pressure (BP), body mass index (BMI), waist/hip ratio, leptin, lipid profile and inflammation in hypertensive young patients. An open-label, randomized, controlled trial was performed among 79 patients aged 20-55 years with grade I or grade II systemic arterial hypertension. The subjects were assigned to one of four groups for AHT plus DF during 6 months: Cpr (n = 14), Cpr + DF (n = 19), Tms (n = 25) and Tms + DF (n = 21). DF consisted of dark chocolate, dehydrated red apple and green tea in an infusion to obtain a daily dose of 425.8 ± 13.9 mg epicatechin equivalents. The BP and anthropometric parameters were measured every 2 weeks. Lipid profile, leptin and hsCRP were determined by standard methods. The combination AHT-DF produced an additional and significant reduction in (i) SBP/DBP of -5/-4 mmHg, being -7/-5 for Cpr + DF and -4/-3 for Tms + DF; (ii) triglyceride levels (-30.6%) versus AHT alone (-9.6%); and (iii) leptin: Cpr + DF versus Tms + DF (p < 0.005). Finally, C-reactive protein plasma levels were reduced significantly in all groups independently of the applied treatment. We conclude that the addition of flavonoids to pharmacological antihypertensive therapy shows additional benefits on BP, lipid profile, leptin, obesity and inflammation. © 2014 Nordic Association for the Publication of BCPT (former Nordic Pharmacological Society).
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