Abstract
High intakes of flavonoids are associated with reduced cardiovascular risk, and flavonoids such as cocoa and soy protein isolate have shown beneficial effects on blood pressure (BP). Anthocyanins constitute a flavonoid subgroup consumed in regular diets, but few studies have assessed the antihypertensive potential of anthocyanins. We aimed to assess whether high concentrations of relatively pure anthocyanins reduce BP and alter cardiovascular and catecholamine reactivity to stress. A total of 31 healthy men between 35–51 years of age with screening BP >140/90 mm Hg, not on antihypertensive or lipid-lowering medication, were randomised in a double-blind crossover study to placebo versus 320-mg anthoycanins twice daily. Treatment duration was 4 weeks, with a 4-week washout. Sitting and supine BP measurements, ambulatory BP recording and stress reactivity were assessed and analyzed by a paired sample t-test. In all, 27 patients completed all visits. Sitting systolic BP (primary endpoint) was 133 mm Hg after placebo versus 135 mm Hg after anthocyanin treatment (P=0.25). Anthocyanins did neither affect semiautomatic oscillometric BP measurements in the sitting or supine position nor 24-h ambulatory BP. No significant differences in stress reactivity were found across treatment periods. Overall, we conclude that high concentrations of these relatively pure anthocyanins do not reduce BP in healthy men with a high normal BP.
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References
Hertog MG, Feskens EJ, Hollman PC, Katan MB, Kromhout D . Dietary antioxidant flavonoids and risk of coronary heart disease: the Zutphen Elderly Study. Lancet 1993; 342: 1007–1011.
Mink PJ, Scrafford CG, Barraj LM, Harnack L, Hong CP, Nettleton JA et al. Flavonoid intake and cardiovascular disease mortality: a prospective study in postmenopausal women. Am J Clin Nutr 2007; 85: 895–909.
Hooper L, Kroon PA, Rimm EB, Cohn JS, Harvey I, Le Cornu KA et al. Flavonoids, flavonoid-rich foods, and cardiovascular risk: a meta-analysis of randomized controlled trials. Am J Clin Nutr 2008; 88: 38–50.
Naruszewicz M, Laniewska I, Millo B, Dluzniewski M . Combination therapy of statin with flavonoids rich extract from chokeberry fruits enhanced reduction in cardiovascular risk markers in patients after myocardial infraction (MI). Atherosclerosis 2007; 194: e179–e184.
McKay DL, Chen CY, Saltzman E, Blumberg JB . Hibiscus sabdariffa L tea (tisane) lowers blood pressure in prehypertensive and mildly hypertensive adults. J Nutr 2010; 140: 298–303.
Karlsen A, Retterstol L, Laake P, Paur I, Kjolsrud-Bohn S, Sandvik L et al. Anthocyanins inhibit nuclear factor-kappaB activation in monocytes and reduce plasma concentrations of pro-inflammatory mediators in healthy adults. J Nutr 2007; 137: 1951–1954.
Qin Y, Xia M, Ma J, Hao Y, Liu J, Mou H et al. Anthocyanin supplementation improves serum LDL- and HDL-cholesterol concentrations associated with the inhibition of cholesteryl ester transfer protein in dyslipidemic subjects. Am J Clin Nutr 2009; 90: 485–492.
Flaa A, Eide IK, Kjeldsen SE, Rostrup M . Sympathoadrenal stress reactivity is a predictor of future blood pressure: an 18-year follow-up study. Hypertension 2008; 52: 336–341.
Schwartz AR, Gerin W, Davidson KW, Pickering TG, Brosschot JF, Thayer JF et al. Toward a causal model of cardiovascular responses to stress and the development of cardiovascular disease. Psychosom Med 2003; 65: 22–35.
Olatunji LA, Soladoye AO . Effects of chronic administration of vitamin E on haemodynamic responses to postural stress or cold pressor test in apparently healthy young men. Niger Postgrad Med J 2008; 15: 225–228.
Brody S, Preut R, Schommer K, Schurmeyer TH . A randomized controlled trial of high dose ascorbic acid for reduction of blood pressure, cortisol, and subjective responses to psychological stress. Psychopharmacology (Berl) 2002; 159: 319–324.
Steptoe A, Gibson EL, Vuononvirta R, Williams ED, Hamer M, Rycroft JA et al. The effects of tea on psychophysiological stress responsivity and post-stress recovery: a randomised double-blind trial. Psychopharmacology (Berl) 2007; 190: 81–89.
Girouard H, Chulak C, LeJossec M, Lamontagne D, de CJ . Chronic antioxidant treatment improves sympathetic functions and beta-adrenergic pathway in the spontaneously hypertensive rats. J Hypertens 2003; 21: 179–188.
Nishiyama K, Yasue H, Moriyama Y, Tsunoda R, Ogawa H, Yoshimura M et al. Acute effects of melatonin administration on cardiovascular autonomic regulation in healthy men. Am Heart J 2001; 141: E9.
Guelen I, Westerhof BE, van der Sar GL, van Montfrans GA, Kiemeneij F, Wesseling KH et al. Finometer, finger pressure measurements with the possibility to reconstruct brachial pressure. Blood Press Monit 2003; 8: 27–30.
Peuler JD, Johnson GA . Simultaneous single isotope radioenzymatic assay of plasma norepinephrine, epinephrine and dopamine. Life Sci 1977; 21: 625–636.
Rostrup M, Mundal HH, Westheim A, Eide I . Awareness of high blood pressure increases arterial plasma catecholamines, platelet noradrenaline and adrenergic responses to mental stress. J Hypertens 1991; 9: 159–166.
Herrera-Arellano A, Miranda-Sanchez J, Avila-Castro P, Herrera-Alvarez S, Jimenez-Ferrer JE, Zamilpa A et al. Clinical effects produced by a standardized herbal medicinal product of Hibiscus sabdariffa on patients with hypertension. A randomized, double-blind, lisinopril-controlled clinical trial. Planta Med 2007; 73: 6–12.
Senn S, Lambrou D . Robust and realistic approaches to carry-over. Stat Med 1998; 17: 2849–2864.
Desch S, Schmidt J, Kobler D, Sonnabend M, Eitel I, Sareban M et al. Effect of cocoa products on blood pressure: systematic review and meta-analysis. Am J Hypertens 2010; 23: 97–103.
McGhie TK, Walton MC . The bioavailability and absorption of anthocyanins: towards a better understanding. Mol Nutr Food Res 2007; 51: 702–713.
Curtis PJ, Kroon PA, Hollands WJ, Walls R, Jenkins G, Kay CD et al. Cardiovascular disease risk biomarkers and liver and kidney function are not altered in postmenopausal women after ingesting an elderberry extract rich in anthocyanins for 12 weeks. J Nutr 2009; 139: 2266–2271.
Shi Z, Chen AD, Xu Y, Chen Q, Gao XY, Wang W et al. Long-term administration of tempol attenuates postinfarct ventricular dysfunction and sympathetic activity in rats. Pflugers Arch 2009; 458: 247–257.
van den Bogaard B, Draijer R, Westerhof BE, van den Meiracker AH, van Montfrans GA, van den Born BJ . Effects on peripheral and central blood pressure of cocoa with natural or high-dose theobromine: a randomized, double-blind crossover trial. Hypertension 2010; 56: 839–846.
Acknowledgements
We thank Vibeke Kjær and Christina Roaldsnes for substantial assistance during the study, Biolink AS for supply of Medox capsules and Anette Karlsen for angiotensin-converting enzyme analysis at the Department of Nutrition, Medical Faculty, University of Oslo, Oslo, Norway.
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Biolink AS (Sandnes, Norway) provided anthocyanin and placebo capsules for free. They provided the corresponding author half his income for 1 year. They were encouraged to comment on the manuscript; however, the conduction, analysis and article preparation were investigator initiated, and unfavourable results could not be restricted from publication.
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Hassellund, S., Flaa, A., Sandvik, L. et al. Effects of anthocyanins on blood pressure and stress reactivity: a double-blind randomized placebo-controlled crossover study. J Hum Hypertens 26, 396–404 (2012). https://doi.org/10.1038/jhh.2011.41
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DOI: https://doi.org/10.1038/jhh.2011.41
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