Not provided
Not provided
Not provided
Not provided
Not provided
Difficulties with the patient recruitment
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Arterial hypertension is one of the most preventable risk factors for stroke, cardiovascular and renal disease. Cocoa is rich in a subclass of flavonoid called flavanol this increase nitric oxide production and is involved in controlling blood pressure.
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Dark chocolate | Active Comparator | Presence of 70% cocoa solids |
|
| White chocolate | Placebo Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Dark chocolate | Dietary Supplement | Each chocolate bar provided 210 calories represented in 25 grams of carbohydrates, 3 g of proteins, 18 g of total fat and the presence of 70% cocoa solids |
| Measure | Description | Time Frame |
|---|---|---|
| Change in diastolic blood pressure | Measurement of the diastolic blood pressure with the ambulatory blood pressure monitoring | Baseline and 12 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Change in systolic blood pressure | Measurement of the systolic blood pressure with the ambulatory blood pressure monitoring | Baseline and 12 weeks |
| Change in total cholesterol | Baseline and 12 weeks |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Monica L Giraldo, PhD | Universidad de Antioquia | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sede Investigaciones Universitarias, Universidad de Antioquia | MedellÃn | Antioquia | Colombia |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 14656957 | Background | Chobanian AV, Bakris GL, Black HR, Cushman WC, Green LA, Izzo JL Jr, Jones DW, Materson BJ, Oparil S, Wright JT Jr, Roccella EJ; Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. National Heart, Lung, and Blood Institute; National High Blood Pressure Education Program Coordinating Committee. Seventh report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. Hypertension. 2003 Dec;42(6):1206-52. doi: 10.1161/01.HYP.0000107251.49515.c2. Epub 2003 Dec 1. | |
| 17762635 |
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D006973 | Hypertension |
| ID | Term |
|---|---|
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| White chocolate | Dietary Supplement | Each chocolate bar provided 230 calories represented in 28 grams of carbohydrates, 3 g of proteins, 18 g of total fat, without the presence of 70% cocoa solids |
|
| Change in low density lipoprotein cholesterol | Baseline and 12 weeks |
| Change in high density lipoprotein cholesterol | Baseline and 12 weeks |
| Change in triglycerides levels | Baseline and 12 weeks |
| Change in hs-CRP | Baseline and 12 weeks |
| Change in IL-1 beta levels | Baseline and 12 weeks |
| Change in IL-2 levels | Baseline and 12 weeks |
| Change in tumor necrosis factor alpha levels | Baseline and 12 weeks |
| Change in flow mediated dilatation of the brachial artery | Baseline and 12 weeks |
| Background |
| Mancia G, De Backer G, Dominiczak A, Cifkova R, Fagard R, Germano G, Grassi G, Heagerty AM, Kjeldsen SE, Laurent S, Narkiewicz K, Ruilope L, Rynkiewicz A, Schmieder RE, Boudier HA, Zanchetti A; ESH-ESC Task Force on the Management of Arterial Hypertension. 2007 ESH-ESC Practice Guidelines for the Management of Arterial Hypertension: ESH-ESC Task Force on the Management of Arterial Hypertension. J Hypertens. 2007 Sep;25(9):1751-62. doi: 10.1097/HJH.0b013e3282f0580f. No abstract available. |
| 16794463 | Background | K Hollenberg N. Vascular action of cocoa flavanols in humans: the roots of the story. J Cardiovasc Pharmacol. 2006;47 Suppl 2:S99-102; discussion S119-21. doi: 10.1097/00005344-200606001-00002. |
| 16794446 | Background | McCullough ML, Chevaux K, Jackson L, Preston M, Martinez G, Schmitz HH, Coletti C, Campos H, Hollenberg NK. Hypertension, the Kuna, and the epidemiology of flavanols. J Cardiovasc Pharmacol. 2006;47 Suppl 2:S103-9; discussion 119-21. doi: 10.1097/00005344-200606001-00003. |
| 15640494 | Background | Keen CL, Holt RR, Oteiza PI, Fraga CG, Schmitz HH. Cocoa antioxidants and cardiovascular health. Am J Clin Nutr. 2005 Jan;81(1 Suppl):298S-303S. doi: 10.1093/ajcn/81.1.298S. |
| 16794453 | Background | Selmi C, Mao TK, Keen CL, Schmitz HH, Eric Gershwin M. The anti-inflammatory properties of cocoa flavanols. J Cardiovasc Pharmacol. 2006;47 Suppl 2:S163-71; discussion S172-6. doi: 10.1097/00005344-200606001-00010. |
| 19910929 | Background | Desch S, Schmidt J, Kobler D, Sonnabend M, Eitel I, Sareban M, Rahimi K, Schuler G, Thiele H. Effect of cocoa products on blood pressure: systematic review and meta-analysis. Am J Hypertens. 2010 Jan;23(1):97-103. doi: 10.1038/ajh.2009.213. Epub 2009 Nov 12. |
| 20584271 | Background | Ried K, Sullivan T, Fakler P, Frank OR, Stocks NP. Does chocolate reduce blood pressure? A meta-analysis. BMC Med. 2010 Jun 28;8:39. doi: 10.1186/1741-7015-8-39. |
| 17420419 | Background | Taubert D, Roesen R, Schomig E. Effect of cocoa and tea intake on blood pressure: a meta-analysis. Arch Intern Med. 2007 Apr 9;167(7):626-34. doi: 10.1001/archinte.167.7.626. |
| 16027246 | Background | Grassi D, Necozione S, Lippi C, Croce G, Valeri L, Pasqualetti P, Desideri G, Blumberg JB, Ferri C. Cocoa reduces blood pressure and insulin resistance and improves endothelium-dependent vasodilation in hypertensives. Hypertension. 2005 Aug;46(2):398-405. doi: 10.1161/01.HYP.0000174990.46027.70. Epub 2005 Jul 18. |
| 19819484 | Background | Sabater-Hernandez D, Fikri-Benbrahim O, Faus MJ. [Usefulness of ambulatory blood pressure monitoring for clinical decisions making]. Med Clin (Barc). 2010 Jun 5;135(1):23-9. doi: 10.1016/j.medcli.2009.07.019. Epub 2009 Oct 12. Spanish. |
| 17538078 | Background | Haukoos JS, Newgard CD. Advanced statistics: missing data in clinical research--part 1: an introduction and conceptual framework. Acad Emerg Med. 2007 Jul;14(7):662-8. doi: 10.1197/j.aem.2006.11.037. Epub 2007 May 30. |
| 16551272 | Background | Farouque HM, Leung M, Hope SA, Baldi M, Schechter C, Cameron JD, Meredith IT. Acute and chronic effects of flavanol-rich cocoa on vascular function in subjects with coronary artery disease: a randomized double-blind placebo-controlled study. Clin Sci (Lond). 2006 Jul;111(1):71-80. doi: 10.1042/CS20060048. |
| 18400709 | Background | Crews WD Jr, Harrison DW, Wright JW. A double-blind, placebo-controlled, randomized trial of the effects of dark chocolate and cocoa on variables associated with neuropsychological functioning and cardiovascular health: clinical findings from a sample of healthy, cognitively intact older adults. Am J Clin Nutr. 2008 Apr;87(4):872-80. doi: 10.1093/ajcn/87.4.872. |
| 19776136 | Background | Monagas M, Khan N, Andres-Lacueva C, Casas R, Urpi-Sarda M, Llorach R, Lamuela-Raventos RM, Estruch R. Effect of cocoa powder on the modulation of inflammatory biomarkers in patients at high risk of cardiovascular disease. Am J Clin Nutr. 2009 Nov;90(5):1144-50. doi: 10.3945/ajcn.2009.27716. Epub 2009 Sep 23. |
| 15190043 | Background | Engler MB, Engler MM, Chen CY, Malloy MJ, Browne A, Chiu EY, Kwak HK, Milbury P, Paul SM, Blumberg J, Mietus-Snyder ML. Flavonoid-rich dark chocolate improves endothelial function and increases plasma epicatechin concentrations in healthy adults. J Am Coll Nutr. 2004 Jun;23(3):197-204. doi: 10.1080/07315724.2004.10719361. |
| 19064532 | Background | Muniyappa R, Hall G, Kolodziej TL, Karne RJ, Crandon SK, Quon MJ. Cocoa consumption for 2 wk enhances insulin-mediated vasodilatation without improving blood pressure or insulin resistance in essential hypertension. Am J Clin Nutr. 2008 Dec;88(6):1685-96. doi: 10.3945/ajcn.2008.26457. |
| 17609490 | Background | Taubert D, Roesen R, Lehmann C, Jung N, Schomig E. Effects of low habitual cocoa intake on blood pressure and bioactive nitric oxide: a randomized controlled trial. JAMA. 2007 Jul 4;298(1):49-60. doi: 10.1001/jama.298.1.49. |
| 18716168 | Background | Grassi D, Desideri G, Necozione S, Lippi C, Casale R, Properzi G, Blumberg JB, Ferri C. Blood pressure is reduced and insulin sensitivity increased in glucose-intolerant, hypertensive subjects after 15 days of consuming high-polyphenol dark chocolate. J Nutr. 2008 Sep;138(9):1671-6. doi: 10.1093/jn/138.9.1671. |
| 15712594 | Background | Fraga CG, Actis-Goretta L, Ottaviani JI, Carrasquedo F, Lotito SB, Lazarus S, Schmitz HH, Keen CL. Regular consumption of a flavanol-rich chocolate can improve oxidant stress in young soccer players. Clin Dev Immunol. 2005 Mar;12(1):11-7. doi: 10.1080/10446670410001722159. |
| 16794456 | Background | Wang-Polagruto JF, Villablanca AC, Polagruto JA, Lee L, Holt RR, Schrader HR, Ensunsa JL, Steinberg FM, Schmitz HH, Keen CL. Chronic consumption of flavanol-rich cocoa improves endothelial function and decreases vascular cell adhesion molecule in hypercholesterolemic postmenopausal women. J Cardiovasc Pharmacol. 2006;47 Suppl 2:S177-86; discussion S206-9. doi: 10.1097/00005344-200606001-00013. |
| 16794457 | Background | Holt RR, Actis-Goretta L, Momma TY, Keen CL. Dietary flavanols and platelet reactivity. J Cardiovasc Pharmacol. 2006;47 Suppl 2:S187-96; discussion S206-9. doi: 10.1097/00005344-200606001-00014. |
| 12791625 | Background | Murphy KJ, Chronopoulos AK, Singh I, Francis MA, Moriarty H, Pike MJ, Turner AH, Mann NJ, Sinclair AJ. Dietary flavanols and procyanidin oligomers from cocoa (Theobroma cacao) inhibit platelet function. Am J Clin Nutr. 2003 Jun;77(6):1466-73. doi: 10.1093/ajcn/77.6.1466. |
| 16877946 | Background | Ferri C, Grassi D, Grassi G. Cocoa beans, endothelial function and aging: an unexpected friendship? J Hypertens. 2006 Aug;24(8):1471-4. doi: 10.1097/01.hjh.0000239279.82196.ec. No abstract available. |
| 16418281 | Background | Schroeter H, Heiss C, Balzer J, Kleinbongard P, Keen CL, Hollenberg NK, Sies H, Kwik-Uribe C, Schmitz HH, Kelm M. (-)-Epicatechin mediates beneficial effects of flavanol-rich cocoa on vascular function in humans. Proc Natl Acad Sci U S A. 2006 Jan 24;103(4):1024-9. doi: 10.1073/pnas.0510168103. Epub 2006 Jan 17. |
| 16365364 | Background | Hermann F, Spieker LE, Ruschitzka F, Sudano I, Hermann M, Binggeli C, Luscher TF, Riesen W, Noll G, Corti R. Dark chocolate improves endothelial and platelet function. Heart. 2006 Jan;92(1):119-20. doi: 10.1136/hrt.2005.063362. No abstract available. |