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Rossi I, Mignogna C, Del Rio D, Mena P. Health effects of 100% fruit and vegetable juices: evidence from human subject intervention studies. Nutr Res Rev 2024; 37:194-238. [PMID: 37655747 DOI: 10.1017/s095442242300015x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The health effects of 100% fruit and vegetable juices (FVJ) represent a controversial topic. FVJ contain notable amounts of free sugars, but also vitamins, minerals, and secondary compounds with proven biological activities like (poly)phenols and carotenoids. The review aimed to shed light on the potential impact of 100% FVJ on human subject health, comprehensively assessing the role each type of juice may have in specific health outcomes for a particular target population, as reported in dietary interventions. The effects of a wide range of FVJ (orange, grapefruit, mandarin, lemon, apple, white, red, and Concord grapes, pomegranate, cranberry, chokeberry, blueberry, other minor berries, sweet and tart cherry, plum, tomato, carrot, beetroot, and watermelon, among others) were evaluated on a series of outcomes (anthropometric parameters, body composition, blood pressure and vascular function, lipid profile, glucose homeostasis, biomarkers of inflammation and oxidative stress, cognitive function, exercise performance, gut microbiota composition and bacterial infections), providing a thorough picture of the contribution of each FVJ to a health outcome. Some juices demonstrated their ability to exert potential preventive effects on some outcomes while others on other health outcomes, emphasising how the differential composition in bioactive compounds defines juice effects. Research gaps and future prospects were discussed. Although 100% FVJ appear to have beneficial effects on some cardiometabolic health outcomes, cognition and exercise performance, or neutral effects on anthropometric parameters and body composition, further efforts are needed to better understand the impact of 100% FVJ on human subject health.
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Affiliation(s)
- Irene Rossi
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, Italy
| | - Cristiana Mignogna
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, Italy
| | - Daniele Del Rio
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, Italy
| | - Pedro Mena
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, Italy
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Goudarzi MA, Sohrabi Z, Hashempur MH, Nosratabadi S, Namkhah Z, Clark CCT, Haghighat N. Does the Grape Products Intake has an Effect on Body Weight in Adults: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Curr Drug Targets 2024; 25:121-134. [PMID: 38141198 DOI: 10.2174/0113894501272740231219072525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/10/2023] [Accepted: 11/17/2023] [Indexed: 12/25/2023]
Abstract
INTRODUCTION There is a growing interest in the considerable benefits of grape products intake, as some studies have indicated that they may improve cardiometabolic risk factors. However, the widespread impact of grape products on the anthropometric indices is not fully resolved. METHOD The purpose of this systematic review and meta-analysis was to examine the effects of grape products intake on anthropometric indices in adults. Randomized controlled trials (RCT) examining the effects of grape products intake on anthropometric indices, published up to December 2021, were identified through PubMed, SCOPUS, and ISI Web of Science databases. 30 studies with 35 effect sizes, including 1284 participants (708 cases and 576 controls), were included and analyzed using a random-effects model to calculate weighted mean differences (WMDs) with 95% confidence interval (CI). RESULT The outcomes have revealed grape products intake to significantly decrease body weight (p = 0.001) and body mass index (p = 0.004) in obese participants, and also, a greater effect was observed when grape seed extract was used. CONCLUSION Our study suggests that grape products intake may help to decrease body weight in obese participants. Future large RCTs with longer duration and obese populations are needed to expand our findings.
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Affiliation(s)
| | - Zahra Sohrabi
- Student Research Committee, Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz 0098, Iran
| | - Mohammad Hashem Hashempur
- Research Center for Traditional Medicine and History of Medicine, Department of Persian Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeed Nosratabadi
- Department of Nutrition, Electronic Health and Statistics Surveillance Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zahra Namkhah
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Cain C T Clark
- Centre for Intelligent Healthcare, Coventry University, Coventry, CV1 5FB, U.K
| | - Neda Haghighat
- Laparoscopy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Micek A, Currenti W, Mignogna C, Rosi A, Barbagallo I, Alshatwi AA, Del Rio D, Mena P, Godos J. Are (poly)phenols contained in 100% fruit juices mediating their effects on cardiometabolic risk factors? A meta-regression analysis. Front Nutr 2023; 10:1175022. [PMID: 37396131 PMCID: PMC10311565 DOI: 10.3389/fnut.2023.1175022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/17/2023] [Indexed: 07/04/2023] Open
Abstract
Background The consumption of 100% fruit juices has not been associated with substantial detrimental outcomes in population studies and may even contribute to improving the cardiometabolic profile if included in a healthy balanced diet. The main contributors to such potential beneficial effects include vitamins, minerals, and likely the (poly)phenol content. This study aimed to investigate whether the (poly)phenols contained in 100% fruit juices may mediate their effects on cardiometabolic risk factors based on published randomized controlled trials (RCT). Methods A systematic search in PubMed/MEDLINE and Embase, updated till the end of October 2022, was carried out to identify RCT providing quantitative data on (poly)phenol content in 100% fruit juices and used as an intervention to improve cardiometabolic parameters such as blood lipids, glucose, and blood pressure. Meta-regression analysis was performed to calculate the effect of the intervention [expressed as standardized mean difference and 95% confidence intervals (CI)] using the (poly)phenol content as moderator. Results A total of 39 articles on RCT investigating the effects of 100% fruit juices on cardiometabolic risk factors reporting data on total (poly)phenol and anthocyanin content were included in the analysis. Total (poly)phenol content was substantially unrelated to any outcome investigated. In contrast, each 100 mg per day increase in anthocyanins was related to 1.53 mg/dL decrease in total cholesterol (95% CI, -2.83, -0.22, p = 0.022) and 1.94 mg/dL decrease in LDL cholesterol (95% CI, -3.46, -0.42, p = 0.012). No other potential mediating effects of anthocyanins on blood triglycerides, glucose, systolic and diastolic pressure were found, while a lowering effect on HDL cholesterol after excluding one outlier study was observed. Discussion In conclusion, the present study showed that anthocyanins may mediate the potential beneficial effects of some 100% fruit juices on some blood lipids. Increasing the content of anthocyanins through specific fruit varieties or plant breeding could enhance the health benefits of 100% fruit juices.
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Affiliation(s)
- Agnieszka Micek
- Department of Nursing Management and Epidemiology Nursing, Institute of Nursing and Midwifery, Jagiellonian University Medical College, Krakow, Poland
| | - Walter Currenti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Cristiana Mignogna
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, Italy
| | - Alice Rosi
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, Italy
| | - Ignazio Barbagallo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Ali A. Alshatwi
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Daniele Del Rio
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, Italy
| | - Pedro Mena
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, Italy
| | - Justyna Godos
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
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Holt RR, Barile D, Wang SC, Munafo JP, Arvik T, Li X, Lee F, Keen CL, Tagkopoulos I, Schmitz HH. Chardonnay Marc as a New Model for Upcycled Co-products in the Food Industry: Concentration of Diverse Natural Products Chemistry for Consumer Health and Sensory Benefits. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15007-15027. [PMID: 36409321 PMCID: PMC9732887 DOI: 10.1021/acs.jafc.2c04519] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Research continues to provide compelling insights into potential health benefits associated with diets rich in plant-based natural products (PBNPs). Coupled with evidence from dietary intervention trials, dietary recommendations increasingly include higher intakes of PBNPs. In addition to health benefits, PBNPs can drive flavor and sensory perceptions in foods and beverages. Chardonnay marc (pomace) is a byproduct of winemaking obtained after fruit pressing that has not undergone fermentation. Recent research has revealed that PBNP diversity within Chardonnay marc has potential relevance to human health and desirable sensory attributes in food and beverage products. This review explores the potential of Chardonnay marc as a valuable new PBNP ingredient in the food system by combining health, sensory, and environmental sustainability benefits that serves as a model for development of future ingredients within a sustainable circular bioeconomy. This includes a discussion on the potential role of computational methods, including artificial intelligence (AI), in accelerating research and development required to discover and commercialize this new source of PBNPs.
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Affiliation(s)
- Roberta R Holt
- Department of Nutrition, University of California, Davis, Davis, California 95616, United States
| | - Daniela Barile
- Department of Food Science and Technology, University of California, Davis, Davis, California 95616, United States
| | - Selina C Wang
- Department of Food Science and Technology, University of California, Davis, Davis, California 95616, United States
| | - John P Munafo
- Department of Food Science, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Torey Arvik
- Sonomaceuticals, LLC, Santa Rosa, California 95403, United States
| | - Xueqi Li
- Department of Food Science and Technology, University of California, Davis, Davis, California 95616, United States
| | - Fanny Lee
- Sonomaceuticals, LLC, Santa Rosa, California 95403, United States
| | - Carl L Keen
- Department of Nutrition, University of California, Davis, Davis, California 95616, United States
| | - Ilias Tagkopoulos
- PIPA, LLC, Davis, California 95616, United States
- Department of Computer Science and Genome Center, USDA/NSF AI Institute for Next Generation Food Systems (AIFS), University of California, Davis, Davis, California 95616 United States
| | - Harold H Schmitz
- March Capital US, LLC, Davis, California 95616, United States
- T.O.P., LLC, Davis, California 95616, United States
- Graduate School of Management, University of California, Davis, Davis, California 95616, United States
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Sabra A, Netticadan T, Wijekoon C. Grape bioactive molecules, and the potential health benefits in reducing the risk of heart diseases. Food Chem X 2021; 12:100149. [PMID: 34761204 PMCID: PMC8567006 DOI: 10.1016/j.fochx.2021.100149] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 10/07/2021] [Accepted: 10/25/2021] [Indexed: 12/12/2022] Open
Abstract
Grapes are a rich source of bioactive molecules including phenolic acids, flavonoids, anthocyanins, stilbenes, and lipids. These are the compounds which contribute to the health benefits of grape and grape-derived products. They possess antioxidant, antimicrobial, anti-inflammatory, and anti-carcinogenic activities and have wide applications in food and nutraceutical industries. Use of grape extracts rich in these bioactive compounds are linked to reduced incidence of cardiovascular disease and its major risk factors including hypertension (high blood pressure); a clinical condition associated with high mortality worldwide. Therefore, considerable attention has been given to grape-based products to alleviate and treat hypertension. The aim of this review is to summarize the bioactive compounds of grapes, composition changes in different grape extracts and the potential benefits in reducing hypertension.
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Affiliation(s)
- Ali Sabra
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Manitoba R2H 2A6, Canada
| | - Thomas Netticadan
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Manitoba R2H 2A6, Canada
| | - Champa Wijekoon
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Manitoba R2H 2A6, Canada
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Foshati S, Nouripour F, Sadeghi E, Amani R. The effect of grape (Vitis vinifera) seed extract supplementation on flow-mediated dilation, blood pressure, and heart rate: A systematic review and meta-analysis of controlled trials with duration- and dose-response analysis. Pharmacol Res 2021; 175:105905. [PMID: 34798267 DOI: 10.1016/j.phrs.2021.105905] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/12/2021] [Accepted: 09/14/2021] [Indexed: 12/28/2022]
Abstract
The objective of this systematic review and meta-analysis of controlled trials was to assess the long-term effect of grape seed extract (GSE) supplementation on flow-mediated dilation (FMD), systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) in adults. Web of Science, Scopus, Medline, Cochrane Library, and Google Scholar were searched up to May 24, 2021. Nineteen trials were included in this study. Weighted mean difference (WMD) and 95% confidence interval (CI) were calculated using a random-effects model. GSE supplementation significantly reduced DBP (WMD: -2.20 mmHg, 95% CI: -3.79 to -0.60, I2 = 88.8%) and HR (WMD: -1.25 bpm, 95% CI: -2.32 to -0.19, I2 = 59.5%) but had no significant effects on FMD (WMD: 1.02%, 95% CI: -0.62 to 2.66, I2 = 92.0%) and SBP (WMD: -3.55 mmHg, 95% CI: -7.59 to 0.49, I2 = 97.4%). Subgroup analysis revealed that the dose and duration of GSE administration and the characteristics of study participants could be sources of between-study heterogeneity. Significant non-linear relationships were found between DBP and the duration of GSE supplementation (P = 0.044) and its dose (P = 0.007). In conclusion, GSE may be beneficial for individuals with or at risk of cardiovascular disease because it may have hypotensive and HR-lowering properties.
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Affiliation(s)
- Sahar Foshati
- Student Research Committee, Department of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Nouripour
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Erfan Sadeghi
- Department of Biostatistics and Epidemiology, Faculty of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Amani
- Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
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Coelho OGL, Alfenas RDCG, Debelo H, Wightman JD, Ferruzzi MG, Mattes RD. Effects of Concord grape juice flavor intensity and phenolic compound content on glycemia, appetite and cognitive function in adults with excess body weight: a randomized double-blind crossover trial. Food Funct 2021; 12:11469-11481. [PMID: 34698750 DOI: 10.1039/d1fo02049h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background & aims: Concord grape (Vitis lambrusca) juice (CGJ) contains a unique combination of polyphenolic compounds with diverse effects on human health. It also has an intense sensory profile that may modify food choice. Daily consumption of CGJ over 8 weeks reduced fasting blood glucose. However, the impact on 24h-postprandial glucose response from CGJ is still not clear. The purpose of this study was to assess the effect of CGJ flavor intensity and phenolic content on 24 h postprandial glucose concentrations, appetitive sensations, and cognitive function in adults with excess body weight when consumed alone or with a meal. Methods: In a randomized, double-blind, crossover design study, participants consumed three types of beverages: 100% CGJ, a polyphenol-free grape flavored drink with the same flavor essence (LP) or a polyphenol-free grape flavored drink with reduced flavor essence (LPF) either without (trial I) or with (trial II) a meal. 24 h glucose was measured through continuous glucose monitoring. Phenolic metabolite excretion was assessed in 24 h urine samples. Appetite (hunger, thirst, fullness, desire to eat, and prospective consumption) and cognitive function (alertness, energetic, strength, calmness, and relaxation) were assessed hourly through visual analog scales. Results: Thirty-four adults completed trial I and 34 adults completed trial II. When consumed with a meal, beverages with customary flavor essence (CGJ and LP) reduced hunger, desire to eat, and prospective consumption and consumption of the polyphenol-free reduced flavor essence beverage was associated with higher 24 h glucose tAUC. No consistent effects were observed for cognitive outcomes. When consumed alone, CGJ was related to lower glycemic responses by those excreting a higher concentration of the phenolic metabolite iso/ferulic-3'-O-glucuronide, but in beverages without CG phenolics and reduced flavor essence, glycemia was higher among those excreting higher concentrations of caffeic acid-O-sulfate. Conclusions: Both natural phenolics and flavor essence of CGJ may help to moderate appetite and glycemia. Clinical Trials registered at http://www.clinicaltrials.gov: NCT03409484 (trial I) and NCT03409497 (trial II).
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Affiliation(s)
- Olívia G L Coelho
- Departamento de Nutrição e Saúde, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | | | - Hawi Debelo
- Plants for Human Health Institute, North Carolina State University, Kannapolis, NC, USA
| | | | - Mario G Ferruzzi
- Plants for Human Health Institute, North Carolina State University, Kannapolis, NC, USA
| | - Richard D Mattes
- Department of Nutrition Sciences, Purdue University, West Lafayette, IN, USA.
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Li Y, Padilla-Zakour OI. High Pressure Processing vs. Thermal Pasteurization of Whole Concord Grape Puree: Effect on Nutritional Value, Quality Parameters and Refrigerated Shelf Life. Foods 2021; 10:foods10112608. [PMID: 34828888 PMCID: PMC8620349 DOI: 10.3390/foods10112608] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 11/20/2022] Open
Abstract
High-pressure processing (HPP) is utilized for food preservation as it can ensure product safety at low temperatures, meeting consumers’ demand for fresh-like and minimally processed products. The purpose of this study was to determine the effects of HPP (600 MPa, 3 min, 5 °C) and pasteurization by heat treatment (HT, 63 °C, 3 min) on the production of a novel whole Concord grape puree product (with skin and seeds, no waste), and the shelf-life of the puree under refrigerated storage (4 °C). Microbial load, physicochemical properties, phenolic content and antioxidant activity, composition and sensorial attributes of puree samples were evaluated. HPP- and HT-treated purees were microbiologically stable for at least 4 months under refrigeration, with less microbial growth and longer shelf life for HPP samples. HPP and HT samples had similar levels of phenolic contents and antioxidant activities throughout the 4-month refrigerated storage period, even though HPP retained >75% PPO and POD enzyme activities while those of HT were less than 25%. Inclusion of seeds in the puree product significantly increased the fiber, protein, total fatty acid, and linoleic acid contents. Sensory results showed that HPP-treated puree retained more fresh-like grape attributes, had better consistency, and showed significantly higher ratings in consumer overall liking, product ranking, and purchase intent than the HT puree (p < 0.05).
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D'Elia L, Dinu M, Sofi F, Volpe M, Strazzullo P. 100% Fruit juice intake and cardiovascular risk: a systematic review and meta-analysis of prospective and randomised controlled studies. Eur J Nutr 2021; 60:2449-2467. [PMID: 33150530 PMCID: PMC8275541 DOI: 10.1007/s00394-020-02426-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 10/19/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE The relationship between 100% fruit juice (100%FJ) consumption and cardiovascular risk is object of debate: indeed, recently published investigations provided new but discrepant evidence on this important question and International dietary guidelines are not in agreement on recommendations about fruit juice consumption. Therefore, we performed a meta-analysis of the prospective studies and the randomised controlled trials (RCTs) that explored the relationship between 100%FJ intake, cardiovascular risk profile and risk of cardiovascular events. METHODS We performed a systematic search of publications up to August 2019. Summary relative risks and exploration of linearity of the association were estimated for prospective studies and summary mean differences (MDs) calculated for RCTs. RESULTS A total of 21 prospective studies and 35 RCTs met the inclusion criteria. Dose-response analysis detected a significant inverse association between low-moderate 100%FJ consumption and risk of stroke (up to 200 ml/day) or total CV events (up to 170 ml/day) compared with no consumption, with a non-linear relationship (p for non-linearity < 0.05). No significant association was found for coronary heart disease and diabetes risk. In RCTs, a favorable and significant effect of 100%FJ intake was detected on blood pressure (systolic, MD: - 3.14 mmHg; diastolic, MD: - 1.68 mmHg), arterial compliance (carotid-femoral pulse wave velocity, - 0.38 m/s) and endothelial function (flow-mediated dilation, 2.10%). Neutral effects were found on body weight, blood lipids and glucose metabolism. CONCLUSIONS The results of these analyses indicate that 100%FJ consumption is not associated with higher CV risk. A non-linear inverse dose-response relationship occurs between 100%FJ consumption and CV disease, in particular for risk of stroke, probably mediated by the decrease in blood pressure. TRIAL REGISTRATION PROSPERO registration number (CRD42019135577).
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Affiliation(s)
- Lanfranco D'Elia
- Department of Clinical Medicine and Surgery, ESH Excellence Centre of Hypertension, "Federico II" University of Naples Medical School, Via S. Pansini, 5. 80131, Naples, Italy.
| | - Monica Dinu
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Francesco Sofi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Massimo Volpe
- Department of Clinical and Molecular Medicine, School of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
- IRCCS Neuromed, Pozzilli, IS, Italy
| | - Pasquale Strazzullo
- Department of Clinical Medicine and Surgery, ESH Excellence Centre of Hypertension, "Federico II" University of Naples Medical School, Via S. Pansini, 5. 80131, Naples, Italy
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Richter CK, Skulas-Ray AC, Gaugler TL, Meily S, Petersen KS, Kris-Etherton PM. Effects of Cranberry Juice Supplementation on Cardiovascular Disease Risk Factors in Adults with Elevated Blood Pressure: A Randomized Controlled Trial. Nutrients 2021; 13:nu13082618. [PMID: 34444779 PMCID: PMC8398037 DOI: 10.3390/nu13082618] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/15/2021] [Accepted: 07/24/2021] [Indexed: 12/19/2022] Open
Abstract
Emerging cardiovascular disease (CVD) risk factors, including central vascular function and HDL efflux, may be modifiable with food-based interventions such as cranberry juice. A randomized, placebo-controlled, crossover trial was conducted in middle-aged adults with overweight/obesity (n = 40; mean BMI: 28.7 ± 0.8 kg/m2; mean age: 47 ± 2 years) and elevated brachial blood pressure (mean systolic/diastolic BP: 124 ± 2/81 ± 1 mm Hg). Study participants consumed 500 mL/d of cranberry juice (~16 fl oz; 27% cranberry juice) or a matched placebo juice in a randomized order (8-week supplementation periods; 8-week compliance break), with blood samples and vascular measurements obtained at study entry and following each supplementation period. There was no significant treatment effect of cranberry juice supplementation on the primary endpoint of central systolic blood pressure or central or brachial diastolic pressure. Cranberry juice significantly reduced 24-h diastolic ambulatory BP by ~2 mm Hg compared to the placebo (p = 0.05) during daytime hours. Cranberry juice supplementation did not alter LDL-C but significantly changed the composition of the lipoprotein profile compared to the placebo, increasing the concentration of large LDL-C particles (+29.5 vs. −6.7 nmol/L; p = 0.02) and LDL size (+0.073 vs. −0.068 nm; p = 0.001). There was no effect of treatment on ex vivo HDL efflux in the total population, but exploratory subgroup analyses identified an interaction between BMI and global HDL efflux (p = 0.02), with greater effect of cranberry juice in participants who were overweight. Exploratory analyses indicate that baseline C-reactive protein (CRP) values may moderate treatment effects. In this population of adults with elevated blood pressure, cranberry juice supplementation had no significant effect on central systolic blood pressure but did have modest effects on 24-h diastolic ambulatory BP and the lipoprotein profile. Future studies are needed to verify these findings and the results of our exploratory analyses related to baseline health moderators.
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Affiliation(s)
- Chesney K. Richter
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ 85716, USA; (C.K.R.); (A.C.S.-R.)
| | - Ann C. Skulas-Ray
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ 85716, USA; (C.K.R.); (A.C.S.-R.)
| | - Trent L. Gaugler
- Department of Mathematics, Lafayette College, Easton, PA 18042, USA;
| | - Stacey Meily
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA; (S.M.); (K.S.P.)
| | - Kristina S. Petersen
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA; (S.M.); (K.S.P.)
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Penny M. Kris-Etherton
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA; (S.M.); (K.S.P.)
- Correspondence:
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Ghalishourani SS, Farzollahpour F, Shirinbakhshmasoleh M, Kolahdouz S, Ghaedi E, Behrouzian M, Haghighian HK, Campbell MS, Asbaghi O, Moodi V. Effects of grape products on inflammation and oxidative stress: A systematic review and meta-analysis of randomized controlled trials. Phytother Res 2021; 35:4898-4912. [PMID: 33908079 DOI: 10.1002/ptr.7120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 03/08/2021] [Accepted: 03/26/2021] [Indexed: 12/17/2022]
Abstract
This systematic review and meta-analysis of randomized controlled trials (RCTs) were conducted to determine the effects of grapes and grape products on inflammation and oxidative stress among adults. PubMed, Scopus, ISI Web of Science, and Cochrane Library databases were searched up to July 2020 to identify RCTs investigating the effects of grape and grape products on inflammatory and oxidative stress markers. Weighted mean differences (WMD) were pooled using a random-effects model. Of the 8,962 identified studies, 24 RCTs (27 arms) were included in the statistical analysis. Grape products significantly reduced serum C-reactive protein (CRP) levels (WMD: -0.35 mg/L; 95% CI: -0.62, -0.09, p = .008), but they had no significant effect on serum tumor necrosis factor-alpha (TNF-α) (WMD = -1.08 pg/ml; 95% CI: -2.29, 0.11, p = .07), interleukin-6 (IL-6) (WMD = 0.13 pg/ml; 95% CI: -0.35, 0.60, p = .60), total antioxidant capacity (TAC) (WMD = 0.15; 95% CI: -0.35, 0.65, p = .54), or malondialdehyde (MDA) (WMD = 0.14; 95% CI: -0.64, 0.92, p = .72). The analysis indicated possible decreasing effects of grapes and grape products on CRP, but they might not be able to change IL-6, TNF-α, TAC, and MDA concentrations. Nonetheless, further studies are warranted before definitive conclusions may be reached.
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Affiliation(s)
- Samira Sadat Ghalishourani
- Department of Physical Education and Sport Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | | | - Shakiba Kolahdouz
- Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Ghaedi
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa Behrouzian
- Department of Pediatrics, Faculty of Medicine, Golestan Teaching Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hossein Khadem Haghighian
- Metabolic Diseases Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Marilyn S Campbell
- Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA
| | - Omid Asbaghi
- Student Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Vihan Moodi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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12
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Moodi V, Abedi S, Esmaeilpour M, Asbaghi O, Izadi F, Shirinbakhshmasoleh M, Behrouzian M, Shahriari A, Ghaedi E, Miraghajani M. The effect of grapes/grape products on glycemic response: A systematic review and meta-analysis of randomized controlled trials. Phytother Res 2021; 35:5053-5067. [PMID: 33893683 DOI: 10.1002/ptr.7135] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 03/24/2021] [Accepted: 04/10/2021] [Indexed: 02/04/2023]
Abstract
The aim of this study was to perform a systematic review and meta-analysis of randomized clinical trials (RCTs) to examine the effect of grapes/grape products supplementation on glycemic indices in adults. Our systematic search to find relevant RCTs was performed up to February 2020 using PubMed, Scopus, ISI Web of Science, Cochrane Library, and Google Scholar. Based on the heterogeneity between included studies, a random effects or a fixed model was applied in the meta-analysis, and results were expressed as weighted mean differences (WMD) with 95% confidence intervals (CI). Twenty-nine clinical trials (1,297 participants) fulfilled the eligibility criteria of the present meta-analysis. Overall, the grapes/grape products supplementation significantly reduced homeostatic model assessment of insulin resistance (HOMA-IR) (WMD: -0.54, 95% CI: -0.91, -0.17, p = . 004) but did not affect fasting insulin levels (WMD: -0.90 μIU/ml, 95% CI: -1.04, 2.84, p = .362) and hemoglobin A1C (Hb1Ac) percentage (WMD: 0.00%, 95% CI: -0.10, 0.11, p = . 916) in the main analyses. In addition, changes to fasting blood glucose (FBG) levels were in favor of the control group (WMD: 1.19 mg/dl, 95% CI: 0.05, 2.34, p = .041). We found that giving grapes/grape products to adults might have beneficial effects on the HOMA-IR. Further, large-scale RCTs with longer duration are required to confirm these results.
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Affiliation(s)
- Vihan Moodi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sajjad Abedi
- Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mozhgan Esmaeilpour
- Department of Nutrition, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Omid Asbaghi
- Student Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Fatemeh Izadi
- Department of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Mahsa Behrouzian
- Department of Pediatrics, Faculty of Medicine, Golestan teaching hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Shahriari
- Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Ghaedi
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Miraghajani
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,The Early Life Research Unit, Academic Division of Child Health, Obstetrics and Gynaecology, and Nottingham Digestive Disease Centre and Biomedical Research Centre, The School of Medicine, University of Nottingham, Nottingham, UK
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13
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Asbaghi O, Naeini F, Moodi V, Najafi M, Shirinbakhshmasoleh M, Rezaei Kelishadi M, Hadi A, Ghaedi E, Fadel A. Effect of grape products on blood pressure: a systematic review and meta-analysis of randomized controlled trials. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2021. [DOI: 10.1080/10942912.2021.1901731] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Omid Asbaghi
- Student Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Fatemeh Naeini
- Department of Clinical Nutrition, School of Nutritional Science, Tehran University of Medical Science, Tehran, Iran
| | - Vihan Moodi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Moein Najafi
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Mahnaz Rezaei Kelishadi
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Amir Hadi
- Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ehsan Ghaedi
- Students’ Scientific Research Center (SSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdulmnannan Fadel
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
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Price CA, Medici V, Nunez MV, Lee V, Sigala DM, Benyam Y, Keim NL, Mason AE, Chen SY, Parenti M, Slupsky C, Epel ES, Havel PJ, Stanhope KL. A Pilot Study Comparing the Effects of Consuming 100% Orange Juice or Sucrose-Sweetened Beverage on Risk Factors for Cardiometabolic Disease in Women. Nutrients 2021; 13:760. [PMID: 33652807 PMCID: PMC7996959 DOI: 10.3390/nu13030760] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 12/16/2022] Open
Abstract
Overconsumption of sugar-sweetened beverages increases risk factors associated with cardiometabolic disease, in part due to hepatic fructose overload. However, it is not clear whether consumption of beverages containing fructose as naturally occurring sugar produces equivalent metabolic dysregulation as beverages containing added sugars. We compared the effects of consuming naturally-sweetened orange juice (OJ) or sucrose-sweetened beverages (sucrose-SB) for two weeks on risk factors for cardiometabolic disease. Healthy, overweight women (n = 20) were assigned to consume either 3 servings of 100% orange juice or sucrose-SB/day. We conducted 16-hour serial blood collections and 3-h oral glucose tolerance tests during a 30-h inpatient visit at baseline and after the 2-week diet intervention. The 16-h area under the curve (AUC) for uric acid increased in subjects consuming sucrose-SB compared with subjects consuming OJ. Unlike sucrose-SB, OJ did not significantly increase fasting or postprandial lipoproteins. Consumption of both beverages resulted in reductions in the Matsuda insulin sensitivity index (OJ: -0.40 ± 0.18, p = 0.04 within group; sucrose-SB: -1.0 ± 0.38, p = 0.006 within group; p = 0.53 between groups). Findings from this pilot study suggest that consumption of OJ at levels above the current dietary guidelines for sugar intake does not increase plasma uric acid concentrations compared with sucrose-SB, but appears to lead to comparable decreases of insulin sensitivity.
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Affiliation(s)
- Candice Allister Price
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA; (V.L.); (D.M.S.); (Y.B.); (P.J.H.); (K.L.S.)
| | - Valentina Medici
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine (V.M.), University of California Davis, Sacramento, CA 95817, USA;
| | - Marinelle V. Nunez
- Department of Nutrition, University of California Davis, Davis, CA 95616, USA; (M.V.N.); (N.L.K.); (S.-Y.C.); (M.P.); (C.S.)
| | - Vivien Lee
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA; (V.L.); (D.M.S.); (Y.B.); (P.J.H.); (K.L.S.)
| | - Desiree M. Sigala
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA; (V.L.); (D.M.S.); (Y.B.); (P.J.H.); (K.L.S.)
| | - Yanet Benyam
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA; (V.L.); (D.M.S.); (Y.B.); (P.J.H.); (K.L.S.)
| | - Nancy L. Keim
- Department of Nutrition, University of California Davis, Davis, CA 95616, USA; (M.V.N.); (N.L.K.); (S.-Y.C.); (M.P.); (C.S.)
- Western Human Nutrition Research Center, Agricultural Research Service, USDA, Davis, CA 95616, USA
| | - Ashley E. Mason
- Osher Center for Integrative Medicine, School of Medicine, University of California San Francisco, San Francisco, CA 94155, USA;
| | - Shin-Yu Chen
- Department of Nutrition, University of California Davis, Davis, CA 95616, USA; (M.V.N.); (N.L.K.); (S.-Y.C.); (M.P.); (C.S.)
| | - Mariana Parenti
- Department of Nutrition, University of California Davis, Davis, CA 95616, USA; (M.V.N.); (N.L.K.); (S.-Y.C.); (M.P.); (C.S.)
| | - Carolyn Slupsky
- Department of Nutrition, University of California Davis, Davis, CA 95616, USA; (M.V.N.); (N.L.K.); (S.-Y.C.); (M.P.); (C.S.)
| | - Elissa S. Epel
- Department of Psychiatry, University of California San Francisco, San Francisco, CA 94143, USA;
| | - Peter J. Havel
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA; (V.L.); (D.M.S.); (Y.B.); (P.J.H.); (K.L.S.)
- Department of Nutrition, University of California Davis, Davis, CA 95616, USA; (M.V.N.); (N.L.K.); (S.-Y.C.); (M.P.); (C.S.)
| | - Kimber L. Stanhope
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA; (V.L.); (D.M.S.); (Y.B.); (P.J.H.); (K.L.S.)
- Basic Sciences, Touro University of California, Vallejo, CA 94592, USA
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15
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Benton D, Young HA. Role of fruit juice in achieving the 5-a-day recommendation for fruit and vegetable intake. Nutr Rev 2021; 77:829-843. [PMID: 31504822 PMCID: PMC6786897 DOI: 10.1093/nutrit/nuz031] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Although there is strong evidence that consumption of fruit and vegetables is associated with a reduced rate of all-cause mortality, only a minority of the population consumes 5 servings a day, and campaigns to increase intake have had limited success. This review examines whether encouraging the consumption of fruit juice might offer a step toward the 5-a-day target. Reasons given for not consuming whole fruit involve practicalities, inconvenience, and the effort required. Psychologically, what is important is not only basic information about health, but how individuals interpret their ability to implement that information. It has been argued that fruit juice avoids the problems that commonly prevent fruit consumption and thus provides a practical means of increasing intake and benefitting health through an approach with which the population can readily engage. Those arguing against consuming fruit juice emphasize that it is a source of sugar lacking fiber, yet juice provides nutrients such as vitamin C, carotenoids, and polyphenols that offer health-related benefits. Actively encouraging the daily consumption of fruit juice in public health policy could help populations achieve the 5-a-day recommendation for fruit and vegetable intake.
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Affiliation(s)
- David Benton
- Department of Psychology, Swansea University, Wales, United Kingdom
| | - Hayley A Young
- Department of Psychology, Swansea University, Wales, United Kingdom
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16
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Ellwood L, Torun G, Bahar Z, Fernandez R. Effects of flavonoid-rich fruits on hypertension in adults: a systematic review. ACTA ACUST UNITED AC 2020; 17:2075-2105. [PMID: 31464854 DOI: 10.11124/jbisrir-d-19-00050] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The objective of this systematic review was to synthesize the best available research evidence on the effectiveness of flavonoid-rich fruits in the treatment of hypertension. INTRODUCTION Hypertension is a serious public health concern as it contributes to a significant burden of disease, leading to millions of deaths globally. Complementary therapies including flavonoids have generated interest in assisting the treatment of hypertension. Flavonoids are a type of polyphenol abundant in fruits and a growing body of evidence suggests antihypertensive effects of the flavonoids due to their antioxidant properties. To date, no systematic review has been performed to collate the evidence on the effects of flavonoid-rich fruits on hypertension in adults. INCLUSION CRITERIA This systematic review included randomized controlled trials (RCTs) that compared the administration of any type of flavonoid-rich fruit or equivalent supplement with a placebo or other intervention in adults with hypertension. Trials that measured blood pressure using objective outcome measures such as a manual mercury sphygmomanometer were included. Studies that did not specify the flavonoid component of the fruit or fruit supplement were excluded from the review. Secondary outcomes, including change in weight, blood glucose level, triglycerides and total blood cholesterol levels, were also assessed. METHODS A three-step search was undertaken, including a comprehensive search of the MEDLINE, Embase, Cochrane Trials (CENTRAL) and CINAHL databases, in September 2018. We also searched Dissertation Abstracts International, ProQuest Dissertations and Theses, MedNar and ClinicalTrials.gov to identify unpublished studies. The title and abstracts of the studies were reviewed by two independent reviewers against the inclusion/exclusion criteria. The methodological quality of the potential studies for inclusion were assessed using the critical appraisal checklist for randomized controlled trials as recommended by JBI. Data were pooled in a statistical meta-analysis model. Subgroup-analysis according to type of intervention and length of intervention period was performed. Where statistical pooling was not possible, the findings have been presented in a narrative form. RESULTS Fifteen randomized controlled trials involving 572 participants were included in the review. The subclasses of flavonoids assessed included: anthocyanins, naringin, narirutin and flavan-3-ols. The overall methodological quality of the trials was high. Six trials investigated the effect of the flavonoid intervention on blood pressure within four weeks. Meta-analysis of four of the trials demonstrated no effect of flavonoids on systolic or diastolic blood pressure when compared to placebo (systolic mean difference = -1.02, 95% confidence interval [CI] -3.12, 1.07; p = 0.34, I = 0%; diastolic mean difference = -0.90, 95% CI -2.10, 0.31; p = 0.15, I = 0%). Similarly, pooled results from two crossover RCTs with two-timed dosed interventions in a 24-hour period demonstrated no effect on a reduction in diastolic blood pressure (p = 0.38) but did reveal evidence of a reduction in systolic blood pressure (p = 0). Six trials assessed blood pressure following the flavonoid intervention at more than four weeks follow-up. Meta-analysis of five of the trials demonstrated evidence of no effect on either systolic blood pressure (mean difference = -0.95, 95%CI -3.58, 1.68; p = 0.478, I = 0%) or diastolic blood pressure (mean difference = 0.86, 95%CI -1.11, 2.82; p = 0.393, I = 0%). CONCLUSIONS The findings of this systematic review should be interpreted with caution, given that the results are obtained from single-center trials with small sample sizes. Flavonoids have no effect on systolic and diastolic blood pressure. Further robust RCTs using sample sizes based on power calculations are needed to provide evidence for the use of flavonoid-rich fruits for the management of hypertension.
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Affiliation(s)
- Laura Ellwood
- Centre for Evidence Based Initiatives in Health Care: a Joanna Briggs Centre of Excellence.,Centre for Research in Nursing and Health, St George Hospital, Sydney, Australia
| | - Gizemnur Torun
- Koç University Hospital, Istanbul, Turkey.,School of Nursing, Koç University, Istanbul, Turkey
| | - Zuhal Bahar
- School of Nursing, Koç University, Istanbul, Turkey
| | - Ritin Fernandez
- Centre for Evidence Based Initiatives in Health Care: a Joanna Briggs Centre of Excellence.,Centre for Research in Nursing and Health, St George Hospital, Sydney, Australia.,School of Nursing, University of Wollongong, Wollongong, Australia
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17
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The effect of grape products containing polyphenols on C-reactive protein levels: a systematic review and meta-analysis of randomised controlled trials. Br J Nutr 2020; 125:1230-1245. [DOI: 10.1017/s0007114520003591] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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18
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Ho KKHY, Ferruzzi MG, Wightman JD. Potential health benefits of (poly)phenols derived from fruit and 100% fruit juice. Nutr Rev 2020; 78:145-174. [PMID: 31532485 DOI: 10.1093/nutrit/nuz041] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
(Poly)phenol-rich diets have been associated with reduced risk of various diseases. Coffee and tea are typically identified as dietary sources of chlorogenic acid and flavan-3-ols; however, 100% fruit juice greatly contributes to anthocyanin, flavonol, flavan-3-ols, and flavanone intake, making them complementary sources of dietary (poly)phenols. Thus, the aim of this narrative review was to provide an overview of fruit (poly)phenols and their potential health benefits. Fruit (poly)phenols have been associated with several health benefits (eg, reduced risk of cardiovascular disease and neurocognitive benefits). Although perspectives on 100% fruit juice consumption are controversial due to the perception of sugar content, growing evidence supports the role of fruit in whole and 100% juice forms to provide consumer benefits in alignment with dietary guidance. However, differences in (poly)phenol profiles and bioavailability likely exist between whole fruit and 100% fruit juice due to processing and the presence/absence of fiber. Ongoing studies are better defining similarities and differences between whole fruit and 100% fruit juice to elucidate protective mechanisms and align with processing and consumer products.
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Affiliation(s)
- Kacie K H Y Ho
- Kacie K.H.Y. Ho is with the Department of Human Nutrition, Food and Animal Sciences, University of Hawai'i at Mānoa, Honolulu, Hawaii, USA
| | - Mario G Ferruzzi
- Mario G. Ferruzzi is with the Department of Food Bioprocessing and Nutrition Science, Plants for Human Health Institute, North Carolina State University, Kannapolis, North Carolina, USA
| | - JoLynne D Wightman
- JoLynne D. Wightman is with Welch Foods Inc, Concord, Massachusetts, USA
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19
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Wang Y, Gallegos JL, Haskell-Ramsay C, Lodge JK. Effects of chronic consumption of specific fruit (berries, citrus and cherries) on CVD risk factors: a systematic review and meta-analysis of randomised controlled trials. Eur J Nutr 2020; 60:615-639. [PMID: 32535781 PMCID: PMC7900084 DOI: 10.1007/s00394-020-02299-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/05/2020] [Indexed: 02/07/2023]
Abstract
Purpose
This review aims to compare the magnitude of the effects of chronic consumption of fruits; specifically berries, citrus and cherries on cardiovascular disease (CVD) risk factors. Methods PubMed, Web of Science, Scopus, and psycARTICLES were searched from inception until January 2020. Forty-five chronic (≥ 1 week) randomised controlled trials assessing CVD risk factors including endothelial (dys)function, blood pressure (BP), blood lipids and inflammatory biomarkers were included. Results Investigated interventions reported improvements in endothelial function (n = 8), inflammatory biomarkers and lipid status (n = 14), and BP (n = 10). Berries including juice of barberry, cranberry, grape, pomegranate, powder of blueberry, grape, raspberry and freeze-dried strawberry significantly reduced SBP by 3.68 mmHg (95% CI − 6.79 to − 0.58; P = 0.02) and DBP by 1.52 mmHg (95% CI − 2.87 to − 0.18, P = 0.04). In subgroup analysis, these associations were limited to cranberry juice (SBP by 1.52 mmHg [95% CI − 2.97 to − 0.07; P = 0.05], DBP by 1.78 mmHg [95% CI − 3.43 to − 0.12, P = 0.04] and cherry juice (SBP by 3.11 mmHg [95% CI − 4.06 to − 2.15; P = 0.02]). Berries also significantly elevated sVCAM-1 levels by 14.57 ng/mL (85% CI 4.22 to 24.93; P = 0.02). Conclusion These findings suggest that supplementing cranberry or cherry juice might contribute to an improvement in blood pressure. No other significant improvements were observed for other specified fruits. More research is warranted comparing different classes of fruit and exploring the importance of fruit processing on their cardiovascular-protective effects. Electronic supplementary material The online version of this article (10.1007/s00394-020-02299-w) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yueyue Wang
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, EBD223 Ellison Building, Newcastle upon Tyne, NE1 8ST, UK
| | - Jose Lara Gallegos
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, EBD223 Ellison Building, Newcastle upon Tyne, NE1 8ST, UK
| | - Crystal Haskell-Ramsay
- Department of Psychology, Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - John K Lodge
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, EBD223 Ellison Building, Newcastle upon Tyne, NE1 8ST, UK.
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20
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Impact of Grape Products on Lipid Profile: A Meta-Analysis of Randomized Controlled Studies. J Clin Med 2020; 9:jcm9020313. [PMID: 31979098 PMCID: PMC7073656 DOI: 10.3390/jcm9020313] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/15/2020] [Accepted: 01/20/2020] [Indexed: 12/21/2022] Open
Abstract
Background: Growing evidence shows that grape polyphenols can improve cardiovascular risk factors. Although there are clear data supporting a beneficial effect of grape supplementation on blood pressure and glucose metabolism, the effects of grape polyphenols on lipid metabolism are still controversial. Objective: We performed a meta-analysis of randomized controlled trials (RCTs) to assess the effect of grape products on lipid profile. Design: A systematic search was performed in the PubMed, Web of Science, Scopus, and EMBASE databases without any language or publication year restriction. The reference lists of all retrieved articles were manually reviewed. RCTs evaluating the impact of grape products/juice/extracts on lipid profile were included. Difference in total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglycerides (TG), oxidized low-density lipoprotein cholesterol (oxLDL-C), apolipoprotein (apo) A, apo B before and after administration of grape products or placebo were expressed as mean differences (MD) with pertinent 95% confidence intervals (95% CI). The impact of clinical and demographic features on effect size was assessed by meta-regression. Results: The administration of grape products is associated with a significant improvement of lipid profile, as evidenced by changes in TC (MD: −7.6 mg/dL (−0.2 mmol/L); 95% CI: −10.8, −4.4; p < 0.001), HDL-C (MD: 1.4 mg/dL (0.04 mmol/L); 95% CI: 0.8, 1.9; p < 0.001, I2 = 74.7%, p < 0.001), LDL-C (−6.3 mg/dL (−0.16 mmol/L); 95% CI: −9.5, −3.0; p < 0.001), oxLDL-C (MD: −4.5 U/L; 95% CI: −7.5, −1.5; p = 0.003, I2 = 90.6%, p < 0.001), apo B (MD: −2.4 mg/dL (−0.05 µmol/L); 95% CI: −4.5, −0.3; p = 0.026), and TG (MD: −14.5 mg/dL (−0.16 mmol/L); 95% CI: −17.7, −11.2; p < 0.001) levels in subjects receiving grape products compared to placebo. With regard to the extent of the lipid-lowering effect, compared to baseline values, the highest reduction was reported for LDL-C (MD: −5.6 mg/dL (−0.14 mmol/L); 95% CI: −9.5, −1.7; p = 0.005) and for oxLDL-C (MD: −5.0 U/L; 95% CI: −8.8, −1.2; p = 0.010, I2 = 0%, p = 0.470). Conclusions: Grape polyphenols exert a favorable effect on lipid profile in humans by significantly reducing plasma levels of LDL-C and oxLDL-C.
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21
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Mohamedshah Z, Chadwick-Corbin S, Wightman JD, Ferruzzi MG. Comparative assessment of phenolic bioaccessibility from 100% grape juice and whole grapes. Food Funct 2020; 11:6433-6445. [DOI: 10.1039/d0fo00792g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Concord and Niagara grape juice have comparable or greater absolute bioaccessibility of major classes of phenolic compounds compared to masticated whole grapes.
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Affiliation(s)
- Zulfiqar Mohamedshah
- Plants for Human Health Institute
- North Carolina State University
- Kannapolis
- USA
- Department of Food Bioprocessing and Nutrition Sciences
| | | | | | - Mario G. Ferruzzi
- Plants for Human Health Institute
- North Carolina State University
- Kannapolis
- USA
- Department of Food Bioprocessing and Nutrition Sciences
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22
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Liberale L, Bonaventura A, Montecucco F, Dallegri F, Carbone F. Impact of Red Wine Consumption on Cardiovascular Health. Curr Med Chem 2019; 26:3542-3566. [PMID: 28521683 DOI: 10.2174/0929867324666170518100606] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 03/05/2017] [Accepted: 03/05/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND The devastating effects of heavy alcohol drinking have been long time recognized. In the last decades, potential benefits of modest red wine drinking were suggested. In European countries in which red wide intake is not negligible (such as France), the association between cholesterol and cardiovascular (CV) risk was less evident, suggesting the action of some protective molecules in red wine or other foods and drinks. METHODS This narrative review is based on the material searched for and obtained via PubMed up to May 2016. The search terms we used were: "red wine, cardiovascular, alcohol" in combination with "polyphenols, heart failure, infarction". RESULTS Epidemiological and mechanistic evidence of a J-shaped relationship between red wine intake and CV risk further supported the "French paradox". Specific components of red wine both in vitro and in animal models were discovered. Polyphenols and especially resveratrol largely contribute to CV prevention mainly through antioxidant properties. They exert beneficial effects on endothelial dysfunction and hypertension, dyslipidemia, metabolic diseases, thus reducing the risk of adverse CV events such as myocardial infarction ischemic stroke and heart failure. Of interest, recent studies pointed out the role of ethanol itself as a potential cardioprotective agent, but a clear epidemiological evidence is still missing. The aim of this narrative review is to update current knowledge on the intracellular mechanism underlying the cardioprotective effects of polyphenols and ethanol. Furthermore, we summarized the results of epidemiological studies, emphasizing their methodological criticisms and the need for randomized clinical trials able to clarify the potential role of red wine consumption in reducing CV risk. CONCLUSION Caution in avowing underestimation of the global burden of alcohol-related diseases was particularly used.
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Affiliation(s)
- Luca Liberale
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy
| | - Aldo Bonaventura
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy
| | - Fabrizio Montecucco
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy.,IRCCS AOU San Martino - IST, Genova, 10 Largo Benzi, 16132 Genoa, Italy.,Centre of Excellence for Biomedical Research (CEBR), University of Genoa, 9 viale Benedetto XV, 16132 Genoa, Italy
| | - Franco Dallegri
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy.,IRCCS AOU San Martino - IST, Genova, 10 Largo Benzi, 16132 Genoa, Italy
| | - Federico Carbone
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy
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Aune D. Plant Foods, Antioxidant Biomarkers, and the Risk of Cardiovascular Disease, Cancer, and Mortality: A Review of the Evidence. Adv Nutr 2019; 10:S404-S421. [PMID: 31728499 PMCID: PMC6855972 DOI: 10.1093/advances/nmz042] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 03/15/2019] [Accepted: 03/28/2019] [Indexed: 12/14/2022] Open
Abstract
Although a high intake of plant foods such as fruits, vegetables, whole grains, nuts, and legumes has been recommended for chronic disease prevention, it has been unclear what is the optimal amount of intake of these foods and whether specific subtypes are particularly beneficial. The evidence from several recently published meta-analyses on plant foods and antioxidants and various health outcomes is reviewed as well as more recently published studies. In meta-analyses of prospective studies, inverse associations were observed between intake of fruits, vegetables, whole grains, and nuts and the risk of coronary artery disease, stroke, cardiovascular disease overall, total cancer, and all-cause mortality. The strongest reductions in risk were observed at an intake of 800 g/d for fruits and vegetables, 225 g/d for whole grains, and 15-20 g/d for nuts, respectively. Whole-grain and nut consumption was also inversely associated with mortality from respiratory disease, infections, and diabetes. Stronger and more linear inverse associations were observed between blood concentrations of antioxidants (vitamin C, carotenoids, vitamin E) and cardiovascular disease, cancer, and all-cause mortality than for dietary intake. Most studies that have since been published have been consistent with these results; however, further studies are needed on subtypes of plant foods and less common causes of death. These results strongly support dietary recommendations to increase intake of plant foods, and suggest optimal intakes for chronic disease prevention may be ∼800 g/d for intakes of fruits and vegetables, 225 g/d for whole grains, and 15-20 g/d for nuts. Diets high in plant foods could potentially prevent several million premature deaths each year if adopted globally.
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Affiliation(s)
- Dagfinn Aune
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Department of Nutrition, Bjørknes University College, Oslo, Norway
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway
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Consumption of Aged White Wine under a Veil of Flor Reduces Blood Pressure-Increasing Plasma Nitric Oxide in Men at High Cardiovascular Risk. Nutrients 2019; 11:nu11061266. [PMID: 31167421 PMCID: PMC6627822 DOI: 10.3390/nu11061266] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 05/30/2019] [Accepted: 05/31/2019] [Indexed: 11/23/2022] Open
Abstract
Background: Hypertension remains the largest attributable risk factor of cardiovascular disease (CVD), and a reduction of cardiovascular events is linked to diminished elevated blood pressure (BP) values. High alcohol intake is a common cause of hypertension, but some studies have suggested that moderate wine consumption may reduce BP and increase plasma nitric oxide (NO) due to its polyphenol content. Objective: The aim of the present study was to compare the effects of Andalusian aged white wine (AWW) under a veil of flor, an alcoholic beverage with a moderate polyphenol content, with those of gin, an alcoholic beverage without polyphenols, on BP and plasma NO in men at high cardiovascular risk. Methods: This study was designed as an open, randomized crossover-controlled trial in which 38 high-risk male volunteers, aged 55 to 80, received 30 g of ethanol daily in the form of AWW or gin. This was carried out over the course of three weeks, after a two-week washout period. At baseline and after each intervention period, BP, anthropometric parameters, and plasma NO were measured; food intake was also recorded, and physical activity was monitored. Results: Compared to gin, AWW significantly reduced systolic and diastolic BP (p ≤ 0.033; both) and increased plasma NO levels (p = 0.013). Additionally, changes in BP values observed after AWW significantly correlated with increases in plasma NO. No changes in food intake, physical activity, body weight, or waist were observed between the two intervention periods. Conclusions: Moderate daily consumption of AWW may be useful to reduce elevated BP due to an increase of NO synthesis. This effect could be attributed to grape-derived compounds in AWW, such as polyphenols, which are not present in gin.
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25
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UV‑C irradiation as an alternative treatment technique: Study of its effect on microbial inactivation, cytotoxicity, and sensory properties in cranberry-flavored water. INNOV FOOD SCI EMERG 2019. [DOI: 10.1016/j.ifset.2018.11.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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26
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Ghaedi E, Moradi S, Aslani Z, Kord-Varkaneh H, Miraghajani M, Mohammadi H. Effects of grape products on blood lipids: a systematic review and dose–response meta-analysis of randomized controlled trials. Food Funct 2019; 10:6399-6416. [DOI: 10.1039/c9fo01248f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Grape products through several plausible mechanisms-of-action are reported to improve lipid profile. The present systematic review revealed that grape product supplementation might have a positive effect on achieving a lipid profile target.
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Affiliation(s)
- Ehsan Ghaedi
- Students’ Scientific Research Center (SSRC)
- Tehran University of Medical Sciences (TUMS)
- Tehran
- Iran
- Department of Cellular and Molecular Nutrition
| | - Sajjad Moradi
- Halal Research Centre of IRI
- FDA
- Tehran
- Iran
- Nutritional Sciences Department
| | - Zahra Aslani
- Department of Community Nutrition
- School of Nutritional Sciences and Dietetics
- Tehran University of Medical Sciences
- Tehran
- Iran
| | - Hamed Kord-Varkaneh
- Student Research Committee
- Department of Clinical Nutrition and Dietetics
- Faculty of Nutrition and Food Technology
- Shahid Beheshti University of Medical Sciences
- Tehran
| | - Maryam Miraghajani
- National Nutrition and Food Technology Research Institute
- Shahid Beheshti University of Medical Sciences
- Tehran
- Iran
- The Early Life Research Unit
| | - Hamed Mohammadi
- Student Research Committee
- Department of Clinical Nutrition
- School of Nutrition and Food Science
- Isfahan University of Medical Sciences
- Isfahan
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27
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Stanhope KL, Goran MI, Bosy-Westphal A, King JC, Schmidt LA, Schwarz JM, Stice E, Sylvetsky AC, Turnbaugh PJ, Bray GA, Gardner CD, Havel PJ, Malik V, Mason AE, Ravussin E, Rosenbaum M, Welsh JA, Allister-Price C, Sigala DM, Greenwood MRC, Astrup A, Krauss RM. Pathways and mechanisms linking dietary components to cardiometabolic disease: thinking beyond calories. Obes Rev 2018; 19:1205-1235. [PMID: 29761610 PMCID: PMC6530989 DOI: 10.1111/obr.12699] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 03/09/2018] [Accepted: 03/31/2018] [Indexed: 12/11/2022]
Abstract
Calories from any food have the potential to increase risk for obesity and cardiometabolic disease because all calories can directly contribute to positive energy balance and fat gain. However, various dietary components or patterns may promote obesity and cardiometabolic disease by additional mechanisms that are not mediated solely by caloric content. Researchers explored this topic at the 2017 CrossFit Foundation Academic Conference 'Diet and Cardiometabolic Health - Beyond Calories', and this paper summarizes the presentations and follow-up discussions. Regarding the health effects of dietary fat, sugar and non-nutritive sweeteners, it is concluded that food-specific saturated fatty acids and sugar-sweetened beverages promote cardiometabolic diseases by mechanisms that are additional to their contribution of calories to positive energy balance and that aspartame does not promote weight gain. The challenges involved in conducting and interpreting clinical nutritional research, which preclude more extensive conclusions, are detailed. Emerging research is presented exploring the possibility that responses to certain dietary components/patterns are influenced by the metabolic status, developmental period or genotype of the individual; by the responsiveness of brain regions associated with reward to food cues; or by the microbiome. More research regarding these potential 'beyond calories' mechanisms may lead to new strategies for attenuating the obesity crisis.
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Affiliation(s)
- K L Stanhope
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - M I Goran
- Department of Preventive Medicine, Diabetes and Obesity Research Institute, University of Southern California, Los Angeles, CA, USA
| | - A Bosy-Westphal
- Institute of Human Nutrition and Food Science, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - J C King
- Children's Hospital Oakland Research Institute, Oakland, CA, USA
| | - L A Schmidt
- Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, CA, USA
- California Clinical and Translational Science Institute, University of California, San Francisco, San Francisco, CA, USA
- Department of Anthropology, History, and Social Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - J-M Schwarz
- Touro University, Vallejo, CA, USA
- Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - E Stice
- Oregon Research Institute, Eugene, OR, USA
| | - A C Sylvetsky
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA
| | - P J Turnbaugh
- Department of Microbiology and Immunology, G.W. Hooper Research Foundation, University of California, San Francisco, San Francisco, CA, USA
| | - G A Bray
- Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA
| | - C D Gardner
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - P J Havel
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
- Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - V Malik
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - A E Mason
- Department of Psychiatry, Osher Center for Integrative Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - E Ravussin
- Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA
| | - M Rosenbaum
- Division of Molecular Genetics, Department of Pediatrics, Columbia University, New York, NY, USA
| | - J A Welsh
- Department of Pediatrics, Emory University School of Medicine, Wellness Department, Children's Healthcare of Atlanta, Nutrition and Health Sciences Doctoral Program, Laney Graduate School, Emory University, Atlanta, GA, USA
| | - C Allister-Price
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - D M Sigala
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - M R C Greenwood
- Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - A Astrup
- Department of Nutrition, Exercise, and Sports, Faculty of Sciences, University of Copenhagen, Copenhagen, Denmark
| | - R M Krauss
- Children's Hospital Oakland Research Institute, Oakland, CA, USA
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Oak MH, Auger C, Belcastro E, Park SH, Lee HH, Schini-Kerth VB. Potential mechanisms underlying cardiovascular protection by polyphenols: Role of the endothelium. Free Radic Biol Med 2018; 122:161-170. [PMID: 29548794 DOI: 10.1016/j.freeradbiomed.2018.03.018] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/19/2018] [Accepted: 03/12/2018] [Indexed: 10/17/2022]
Abstract
Epidemiological studies have indicated that regular intake of polyphenol-rich diets such as red wine and tea, are associated with a reduced risk of cardiovascular diseases. The beneficial effect of polyphenol-rich products has been attributable, at least in part, to their direct action on the endothelial function. Indeed, polyphenols from tea, grapes, cacao, berries, and plants have been shown to activate endothelial cells to increase the formation of potent vasoprotective factors including nitric oxide (NO) and to delay endothelial ageing. Moreover, intake of such polyphenol-rich products has been associated with the prevention and/or the improvement of an established endothelial dysfunction in several experimental models of cardiovascular diseases and in Humans with cardiovascular diseases. This review will discuss both experimental and clinical evidences indicating that polyphenols are able to promote endothelial and vascular health, as well as the underlying mechanisms.
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Affiliation(s)
- Min-Ho Oak
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France; College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Muan-gun, Jeonnam 58554, Republic of Korea
| | - Cyril Auger
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France
| | - Eugenia Belcastro
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France
| | - Sin-Hee Park
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France
| | - Hyun-Ho Lee
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France
| | - Valérie B Schini-Kerth
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France.
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Ali SA, Parveen N, Ali AS. Links between the Prophet Muhammad (PBUH) recommended foods and disease management: A review in the light of modern superfoods. Int J Health Sci (Qassim) 2018; 12:61-69. [PMID: 29599697 PMCID: PMC5870322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Nutrition and other bioactive natural products present in specific foods within a balanced diet play an indispensable role in maintaining and promoting human health. Plants are rich sources of a balanced nutrition because of high content of bioactive products; hence, most of them recently have acquired the status of superfoods. It has been used since ancient times for the treatment of various ailments, and these traditional medicines still remain as one of the most affordable and easily accessible sources of treatment in the primary health-care system. The scientifically based use of these superfoods date back to the era of Prophet Muhammad along with other historical uses of plant products. Prescription of a large number of herbal foods such as dates, pomegranate, olives, figs, grapes, and black seeds was successfully proposed by him. These recently have become superfoods with their powerful healing properties and act as favorable dietary interventions for disease prevention as well as for the good maintenance of health. The use of these foods as ingredients of natural origin with fewer side effects seems to be more favorable than the chemical treatment, which is often complicated. The present review is an attempt to provide a brief survey of the literature on scientifically based significance of these superfoods carried out by various researchers and exploration of a wide spectrum of their pharmacological actions which include antidiabetic, anticancer, immune modulator, analgesic, anti-inflammatory, and hepatoprotective properties.
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Affiliation(s)
- Sharique A. Ali
- Department of Bioatechnology and Zoology, Saifia College of Science, Bhopal - 462 001, Madhya Pradesh, India
| | - Naima Parveen
- Department of Bioatechnology and Zoology, Saifia College of Science, Bhopal - 462 001, Madhya Pradesh, India
| | - Ayesha S. Ali
- Department of Bioatechnology and Zoology, Saifia College of Science, Bhopal - 462 001, Madhya Pradesh, India
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Flavonoid intake from fruit and vegetables during adolescence is prospectively associated with a favourable risk factor profile for type 2 diabetes in early adulthood. Eur J Nutr 2018; 58:1159-1172. [DOI: 10.1007/s00394-018-1631-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 01/31/2018] [Indexed: 10/18/2022]
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Murphy MM, Barrett EC, Bresnahan KA, Barraj LM. 100 % Fruit juice and measures of glucose control and insulin sensitivity: a systematic review and meta-analysis of randomised controlled trials. J Nutr Sci 2017; 6:e59. [PMID: 29299307 PMCID: PMC5736636 DOI: 10.1017/jns.2017.63] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 09/14/2017] [Accepted: 10/11/2017] [Indexed: 12/22/2022] Open
Abstract
Studies on the effects of consuming 100 % fruit juice on measures of glycaemic control are conflicting. The purpose of the present study was to systematically review and quantitatively summarise results from randomised controlled trials (RCT) examining effects of 100 % fruit juice on glucose-insulin homeostasis. Eligible studies were identified from a systematic review of PubMed and EMBASE and hand searches of reference lists from reviews and relevant papers. Using data from eighteen RCT, meta-analyses evaluated the mean difference in fasting blood glucose (sixteen studies), fasting blood insulin (eleven studies), the homeostatic model assessment of insulin resistance (HOMA-IR; seven studies) and glycosylated Hb (HbA1c; three studies) between the 100 % fruit juice intervention and control groups using a random-effects model. Compared with the control group, 100 % fruit juice had no significant effect on fasting blood glucose (-0·13 (95 % CI -0·28, 0·01) mmol/l; P = 0·07), fasting blood insulin (-0·24 (95 % CI -3·54, 3·05) pmol/l; P = 0·89), HOMA-IR (-0·22 (95 % CI -0·50, 0·06); P = 0·13) or HbA1c (-0·001 (95 % CI -0·38, 0·38) %; P = 0·28). Results from stratified analyses and univariate meta-regressions also largely showed no significant associations between 100 % fruit juice and the measures of glucose control. Overall, findings from this meta-analysis of RCT suggest a neutral effect of 100 % fruit juice on glycaemic control. These findings are consistent with findings from some observational studies suggesting that consumption of 100 % fruit juice is not associated with increased risk of diabetes.
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Affiliation(s)
- Mary M. Murphy
- Exponent, Inc., Center for Chemical Regulation & Food Safety, 1150 Connecticut Avenue, NW, Washington, DC 20036, USA
| | - Erin C. Barrett
- Exponent, Inc., Center for Chemical Regulation & Food Safety, 1150 Connecticut Avenue, NW, Washington, DC 20036, USA
- Habit, LLC, 985 3rd Street, Oakland, CA 94607, USA
| | - Kara A. Bresnahan
- Exponent, Inc., Center for Chemical Regulation & Food Safety, 1150 Connecticut Avenue, NW, Washington, DC 20036, USA
| | - Leila M. Barraj
- Exponent, Inc., Center for Chemical Regulation & Food Safety, 1150 Connecticut Avenue, NW, Washington, DC 20036, USA
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Neto MM, da Silva TF, de Lima FF, Siqueira TMQ, Toscano LT, de Moura SKMSF, Silva AS. Whole Red Grape Juice Reduces Blood Pressure at Rest and Increases Post-exercise Hypotension. J Am Coll Nutr 2017; 36:533-540. [PMID: 28853994 DOI: 10.1080/07315724.2017.1331385] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The objective of this study was to evaluate the effect of whole red grape juice (juice) on blood pressure (BP) at rest and on the magnitude of post-exercise hypotension (PEH). METHODS This double-blind, randomized controlled study was performed with 26 individuals with hypertension (40 to 59 years old) who were divided into experimental (n = 14) and control (n = 12) groups. Subsequently, the experimental group was subdivided according to the initial BP values. The subjects performed 2 sessions of aerobic exercise on a treadmill (60 minutes, 60%-85% maximum heart rate), separated by a 28-day period of supplementation with a daily dose of juice (150 ml for men and 100 ml for women) or a control drink. BP was measured before, during, and immediately after each exercise session as well as every 10 minutes during the 60-minute post-exercise recovery period. RESULTS The BP at rest did not change in the experimental group, but when this group was subdivided by initial BP, the subjects with controlled initial BP (EGCP) achieved a significant reduction (133.3 ± 5.6 to 114.6 ± 12.2 mmHg, p = 0.02); in contrast, the experimental group with borderline hypertensive BP values (EGBP) did not. Intervention with juice did not modify PEH in the experimental group, but when this group was divided as a function of the initial BP, PEH was potentiated at some times in EGCP. CONCLUSIONS We conclude that juice promotes a reduction in BP at rest and is also capable of improving PEH in individuals with hypertension, but these effects are dependent on the initial BP values.
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Affiliation(s)
- Manoel Miranda Neto
- a Laboratory of Physical Training Studies Applied to Performance and Health , Federal University of Paraíba (Universidade Federal da Paraíba-UFPB) , João Pessoa , Brazil
| | - Taís F da Silva
- a Laboratory of Physical Training Studies Applied to Performance and Health , Federal University of Paraíba (Universidade Federal da Paraíba-UFPB) , João Pessoa , Brazil
| | - Fabiano F de Lima
- a Laboratory of Physical Training Studies Applied to Performance and Health , Federal University of Paraíba (Universidade Federal da Paraíba-UFPB) , João Pessoa , Brazil
| | - Thibério M Q Siqueira
- a Laboratory of Physical Training Studies Applied to Performance and Health , Federal University of Paraíba (Universidade Federal da Paraíba-UFPB) , João Pessoa , Brazil
| | - Lydiane T Toscano
- a Laboratory of Physical Training Studies Applied to Performance and Health , Federal University of Paraíba (Universidade Federal da Paraíba-UFPB) , João Pessoa , Brazil
| | - Stephanney K M S F de Moura
- a Laboratory of Physical Training Studies Applied to Performance and Health , Federal University of Paraíba (Universidade Federal da Paraíba-UFPB) , João Pessoa , Brazil
| | - Alexandre S Silva
- a Laboratory of Physical Training Studies Applied to Performance and Health , Federal University of Paraíba (Universidade Federal da Paraíba-UFPB) , João Pessoa , Brazil
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Byrd-Bredbenner C, Ferruzzi MG, Fulgoni VL, Murray R, Pivonka E, Wallace TC. Satisfying America's Fruit Gap: Summary of an Expert Roundtable on the Role of 100% Fruit Juice. J Food Sci 2017; 82:1523-1534. [PMID: 28585690 DOI: 10.1111/1750-3841.13754] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 04/21/2017] [Accepted: 04/25/2017] [Indexed: 01/12/2023]
Abstract
The 2015 to 2020 Dietary Guidelines for Americans (DGAs) recognize the role of 100% fruit juice in health and in helping people meet daily fruit recommendations and state that 100% fruit juice is a nutrient-dense beverage that should be a primary choice, along with water and low-fat/fat-free milk. The DGAs note that children are consuming 100% fruit juice within recommendations (that is, 120 to 180 mL/d for children aged 1 to 6 y and 236 to 355 mL/d for children aged 7 to 18 y). Evidence shows that compared to nonconsumers, those who consume 100% fruit juice come closer to meeting daily fruit needs and have better diet quality. In children, 100% fruit juice is associated with increased intakes of nutrients such as vitamin C, folate, and potassium. When consumed within the DGA recommendations, 100% fruit juice is not associated with overweight/obesity or childhood dental caries and does not compromise fiber intake. Preliminary data suggest that polyphenols in some 100% fruit juices may inhibit absorption of naturally occurring sugars. Given its role in promoting health and in helping people meet fruit needs, experts participating in a roundtable discussion agreed that there is no science-based reason to restrict access to 100% fruit juice in public health nutrition policy and programs such as the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). Reducing or eliminating 100% fruit juice could lead to unintended consequences such as reduced daily fruit intake and increased consumption of less nutritious beverages (for example, sugar-sweetened beverages).
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Affiliation(s)
- Carol Byrd-Bredbenner
- Dept. of Nutritional Sciences, Rutgers Univ., 65 Dudley Rd., New Brunswick, N.J., 08901, U.S.A
| | - Mario G Ferruzzi
- Dept. Food, Bioprocessing and Nutrition, North Carolina State Univ., 600 Laureate Way, Kannapolis, N.C., 28081, U.S.A
| | - Victor L Fulgoni
- Nutrition Impact, LLC, 9725 D Drive North, Battle Creek, Mich., 49014, U.S.A
| | - Robert Murray
- Dept. of Human Sciences, The Ohio State Univ., 1945 North High Street, Columbus, Ohio, 43210, U.S.A
| | - Elizabeth Pivonka
- Produce for Better Health Foundation, 7465 Lancaster Pike, Suite J (2nd Floor), Hockessin, Del., 19707, U.S.A
| | - Taylor C Wallace
- Dept. of Nutrition and Food Studies, George Mason Univ., 10340 Democracy Lane, Suite 306, Fairfax, Va., 22030, U.S.A.,Think Healthy Group, LLC, 127 U Street NW, Wash., DC, 20001, U.S.A
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Rasines-Perea Z, Teissedre PL. Grape Polyphenols' Effects in Human Cardiovascular Diseases and Diabetes. Molecules 2017; 22:E68. [PMID: 28045444 PMCID: PMC6155751 DOI: 10.3390/molecules22010068] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 12/20/2016] [Accepted: 12/29/2016] [Indexed: 02/07/2023] Open
Abstract
The consumption of fruits and vegetables, as well as foods enriched in bioactive compounds and nutraceuticals, has increased due to consumers' interest in the relevance of food composition for human health. Considerable recent interest has focused on bioactive phenolic compounds in grape, as they possess many biological activities, such as antioxidant, cardioprotective, anticancer, anti-inflammation, anti-ageing and antimicrobial properties. Observational studies indicate that the intake of polyphenol-rich foods improves vascular health, thereby significantly reducing the risk of hypertension, and cardiovascular disease (CVD). Other researchers have described the benefits of a grape polyphenol-rich diet for other types of maladies such as diabetes mellitus. This is a comprehensive review on the consumption of polyphenolic grape compounds, concerning their potential benefits for human health in the treatment of cardiovascular diseases and diabetes.
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Affiliation(s)
- Zuriñe Rasines-Perea
- Université de Bordeaux, ISVV, Institut des Sciences de la Vigne et du Vin, EA 4577 Œnologie, 210 Chemin de Leysotte, Villenave d'Ornon F-33140, France.
- INRA, Instiut National de la Recherche Agronomique, ISVV, Institut des Sciences de la Vigne et du Vin, USC 1366 Œnologie, 210 Chemin de Leysotte, Villenave d'Ornon F-33140, France.
| | - Pierre-Louis Teissedre
- Université de Bordeaux, ISVV, Institut des Sciences de la Vigne et du Vin, EA 4577 Œnologie, 210 Chemin de Leysotte, Villenave d'Ornon F-33140, France.
- INRA, Instiut National de la Recherche Agronomique, ISVV, Institut des Sciences de la Vigne et du Vin, USC 1366 Œnologie, 210 Chemin de Leysotte, Villenave d'Ornon F-33140, France.
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Greyling A, Bruno RM, Draijer R, Mulder T, Thijssen DH, Taddei S, Virdis A, Ghiadoni L. Effects of wine and grape polyphenols on blood pressure, endothelial function and sympathetic nervous system activity in treated hypertensive subjects. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.10.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Zhang H, Liu S, Li L, Liu S, Liu S, Mi J, Tian G. The impact of grape seed extract treatment on blood pressure changes: A meta-analysis of 16 randomized controlled trials. Medicine (Baltimore) 2016; 95:e4247. [PMID: 27537554 PMCID: PMC5370781 DOI: 10.1097/md.0000000000004247] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
BACKGROUNDS AND OBJECTIVE Several clinical trials have shown that grape seed extract can reduce blood pressure, but the results are often irreproducible. We therefore sought to systematically evaluate the impact of grape seed extract treatment on the changes of systolic/diastolic blood pressure (SBP/DBP) by meta-analyzing available randomized controlled trials. METHODS Trial selection and data extraction were completed independently by 2 investigators. Effect-size estimates were expressed as weighted mean difference (WMD) and 95% confidence interval (CI). RESULTS Twelve articles involving 16 clinical trials and 810 study subjects were analyzed. Overall analyses found significant reductions for SBP (WMD = -6.077; 95% CI: -10.736 to -1.419; P = 0.011) and DBP (WMD = -2.803; 95% CI: -4.417 to -1.189; P = 0.001) after grape seed extract treatment. In subgroup analyses, there were significant reductions in younger subjects (mean age < 50 years) for SBP (WMD = -6.049; 95% CI: -10.223 to -1.875; P = 0.005) and DBP (WMD = -3.116; 95% CI: -4.773 to -1.459; P < 0.001), in obese subjects (mean body mass index ≥ 25 kg/m) for SBP (WMD = -4.469; 95% CI: -6.628 to -2.310; P < 0.001), and in patients with metabolic syndrome for SBP (WMD = -8.487; 95% CI: -11.869 to -5.106; P < 0.001). Further meta-regression analyses showed that age, body mass index, and baseline blood pressure were negatively associated with the significant reductions of SBP and DBP after treatment. There was no indication of publication bias. CONCLUSION Our findings demonstrate that grape seed extract exerted a beneficial impact on blood pressure, and this impact was more obvious in younger or obese subjects, as well as in patients with metabolic disorders. In view of the small sample size involved, we agree that confirmation of our findings in a large-scale, long-term, multiple-dose randomized controlled trial, especially among hypertensive patients is warranted.
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Affiliation(s)
- Haili Zhang
- College of Pharmacy, Binzhou Medical University
| | - Shuang Liu
- School of Enology, Binzhou Medical University
| | - Lan Li
- School of Enology, Binzhou Medical University
| | - Shisong Liu
- School of Enology, Binzhou Medical University
| | - Shuqi Liu
- School of Enology, Binzhou Medical University
- Correspondence: Jia Mi or Shuqi Liu or Geng Tian, Guanhai Road No. 346, Laishan, Yantai, Shandong 264003, China (e-mail: [JM] or [SL] or [GT])
| | - Jia Mi
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong, China
- Correspondence: Jia Mi or Shuqi Liu or Geng Tian, Guanhai Road No. 346, Laishan, Yantai, Shandong 264003, China (e-mail: [JM] or [SL] or [GT])
| | - Geng Tian
- Medicine and Pharmacy Research Center, Binzhou Medical University, Yantai, Shandong, China
- Correspondence: Jia Mi or Shuqi Liu or Geng Tian, Guanhai Road No. 346, Laishan, Yantai, Shandong 264003, China (e-mail: [JM] or [SL] or [GT])
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Concord and Niagara Grape Juice and Their Phenolics Modify Intestinal Glucose Transport in a Coupled in Vitro Digestion/Caco-2 Human Intestinal Model. Nutrients 2016; 8:nu8070414. [PMID: 27399765 PMCID: PMC4963890 DOI: 10.3390/nu8070414] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/18/2016] [Accepted: 06/30/2016] [Indexed: 01/23/2023] Open
Abstract
While the potential of dietary phenolics to mitigate glycemic response has been proposed, the translation of these effects to phenolic rich foods such as 100% grape juice (GJ) remains unclear. Initial in vitro screening of GJ phenolic extracts from American grape varieties (V. labrusca; Niagara and Concord) suggested limited inhibitory capacity for amylase and α-glucosidase (6.2%-11.5% inhibition; p < 0.05). Separately, all GJ extracts (10-100 µM total phenolics) did reduce intestinal trans-epithelial transport of deuterated glucose (d7-glu) and fructose (d7-fru) by Caco-2 monolayers in a dose-dependent fashion, with 60 min d7-glu/d7-fru transport reduced 10%-38% by GJ extracts compared to control. To expand on these findings by assessing the ability of 100% GJ to modify starch digestion and glucose transport from a model starch-rich meal, 100% Niagara and Concord GJ samples were combined with a starch rich model meal (1:1 and 1:2 wt:wt) and glucose release and transport were assessed in a coupled in vitro digestion/Caco-2 cell model. Digestive release of glucose from the starch model meal was decreased when digested in the presence of GJs (5.9%-15% relative to sugar matched control). Furthermore, transport of d7-glu was reduced 10%-38% by digesta containing bioaccessible phenolics from Concord and Niagara GJ compared to control. These data suggest that phenolics present in 100% GJ may alter absorption of monosaccharides naturally present in 100% GJ and may potentially alter glycemic response if consumed with a starch rich meal.
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Concord Grape Juice Polyphenols and Cardiovascular Risk Factors: Dose-Response Relationships. Nutrients 2015; 7:10032-52. [PMID: 26633488 PMCID: PMC4690071 DOI: 10.3390/nu7125519] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 11/09/2015] [Accepted: 11/23/2015] [Indexed: 12/26/2022] Open
Abstract
Pure fruit juices provide nutritional value with evidence suggesting some of their benefits on biomarkers of cardiovascular disease risk may be derived from their constituent polyphenols, particularly flavonoids. However, few data from clinical trials are available on the dose-response relationship of fruit juice flavonoids to these outcomes. Utilizing the results of clinical trials testing single doses, we have analyzed data from studies of 100% Concord grape juice by placing its flavonoid content in the context of results from randomized clinical trials of other polyphenol-rich foods and beverages describing the same outcomes but covering a broader range of intake. We selected established biomarkers determined by similar methods for measuring flow-mediated vasodilation (FMD), blood pressure, platelet aggregation, and the resistance of low density lipoprotein cholesterol (LDL) to oxidation. Despite differences among the clinical trials in the treatment, subjects, and duration, correlations were observed between the dose and FMD. Inverse dose-response relationships, albeit with lower correlation coefficients, were also noted for the other outcomes. These results suggest a clear relationship between consumption of even modest serving sizes of Concord grape juice, flavonoid intake, and effects on risk factors for cardiovascular disease. This approach to dose-response relationships may prove useful for testing other individual foods and beverages.
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McEvoy CT, Wallace IR, Hamill LL, Hunter SJ, Neville CE, Patterson CC, Woodside JV, Young IS, McKinley MC. Increasing Fruit and Vegetable Intake Has No Dose-Response Effect on Conventional Cardiovascular Risk Factors in Overweight Adults at High Risk of Developing Cardiovascular Disease. J Nutr 2015; 145:1464-71. [PMID: 25972532 DOI: 10.3945/jn.115.213090] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/21/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Improving diet and lifestyle is important for prevention of cardiovascular disease (CVD). Observational evidence suggests that increasing fruit and vegetable (FV) consumption may lower CVD risk, largely through modulation of established risk factors, but intervention data are required to fully elucidate the mechanisms by which FVs exert benefits on vascular health. OBJECTIVE The aim of this study was to examine the dose-response effect of FV intake on cardiovascular risk factors in adults at high CVD risk. METHODS This was a randomized controlled parallel group study involving overweight adults (BMI: >27 and ≤35 kg/m(2)) with a habitually low FV intake (≤160 g/d) and a high total risk of developing CVD (estimated ≥20% over 10 y). After a 4-wk run-in period where FV intake was limited to <2 portions/d (<160 g/d), 92 eligible participants were randomly assigned to 1 of 3 groups: to consume either 2, 4, or 7 portions (equivalent to 160 g, 320 g, or 560 g, respectively) of FVs daily for 12 consecutive weeks. Fasting venous blood samples were collected at baseline (week 4) and post-intervention (week 16) for analysis of lipid fractions and high-sensitivity C-reactive protein (hsCRP) concentrations. Compliance with the FV intervention was determined with use of self-reported FV intake and biomarkers of micronutrient status. Ambulatory blood pressure and body composition were also measured pre- and post-intervention. RESULTS A total of 89 participants completed the study and body composition remained stable throughout the intervention period. Despite good compliance with the intervention, no significant difference was found between the FV groups for change in measures of ambulatory blood pressure, plasma lipids, or hsCRP concentrations. CONCLUSIONS There was no evidence of a dose-response effect of FV intake on conventional CVD risk factors measured in overweight adults at high CVD risk. This trial was registered at clinicaltrials.gov as NCT00874341.
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Affiliation(s)
- Claire T McEvoy
- Centre for Public Health, Queen's University Belfast, Belfast, Northern Ireland; and
| | - Ian R Wallace
- Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast, Northern Ireland
| | - Lesley L Hamill
- Centre for Public Health, Queen's University Belfast, Belfast, Northern Ireland; and
| | - Steven J Hunter
- Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, Belfast, Northern Ireland
| | - Charlotte E Neville
- Centre for Public Health, Queen's University Belfast, Belfast, Northern Ireland; and
| | | | - Jayne V Woodside
- Centre for Public Health, Queen's University Belfast, Belfast, Northern Ireland; and
| | - Ian S Young
- Centre for Public Health, Queen's University Belfast, Belfast, Northern Ireland; and
| | - Michelle C McKinley
- Centre for Public Health, Queen's University Belfast, Belfast, Northern Ireland; and
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Wightman JD, Heuberger RA. Effect of grape and other berries on cardiovascular health. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2015; 95:1584-1597. [PMID: 25171728 DOI: 10.1002/jsfa.6890] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 08/03/2014] [Accepted: 08/23/2014] [Indexed: 06/03/2023]
Abstract
Cardiovascular disease is a leading cause of death globally. Many cardiovascular risk factors can be modified through lifestyle modification, including dietary patterns that emphasize daily consumption of a variety of fruits and vegetables. Recent observational and clinical studies suggest that flavonoids, especially those abundant in grapes and other berries, may be associated with health benefits, particularly cardiovascular benefits. Human clinical data support cardioprotective benefits of grapes through inhibition of platelet aggregation, decreased low-density lipoprotein (LDL) oxidation, reduction in oxidative stress and improvements in endothelial function. Emerging evidence suggests that grapes may also have a favorable effect on blood lipids, decrease inflammation and reduce blood pressure in certain populations. Studies to date have shown that berries can have a beneficial effect on reducing LDL oxidation. Limited data suggest that berries may have a favorable effect on endothelial health and blood pressure. This review summarizes the current literature on human clinical studies examining the cardioprotective benefits of grapes and berries. Collectively, these data support the recommendation to incorporate products made with grapes and other berries into a heart-healthy diet.
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Affiliation(s)
- JoLynne D Wightman
- JD Wightman was employed by Welch Foods Inc. while this work was done and has a permanent address of: Welch Foods, Inc., 300 Baker Avenue, Suite 101, Concord, MA, 01742, USA
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Balentine DA, Dwyer JT, Erdman JW, Ferruzzi MG, Gaine PC, Harnly JM, Kwik-Uribe CL. Recommendations on reporting requirements for flavonoids in research. Am J Clin Nutr 2015; 101:1113-25. [PMID: 25854881 DOI: 10.3945/ajcn.113.071274] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 03/12/2015] [Indexed: 11/14/2022] Open
Abstract
Numerous observational and intervention-based human studies support the notion of a beneficial role for dietary flavonoids in human health. Despite these studies, it is not yet possible to make dietary recommendations with regard to the types and amounts of flavonoids to be consumed. The inherent diversity of flavonoid structure, chemistry, and natural distribution in foods lends itself to errors in reporting the types and/or amounts of flavonoids consumed, as well as incomplete recognition of requirements for intervention studies that aim to assess their benefits in a clinical setting. A need exists for guidelines that facilitate the design and reporting of flavonoid research. With a focus on clinical studies, this article 1) outlines limitations commonly encountered in the field of flavonoid research, including the inconsistent use of nomenclature, inappropriate analytic methods, inconsistent use of existing flavonoid databases, and the lack of full consideration in the design of test materials for intervention trials, and 2) provides guidance for future studies with a focus on clinical intervention trials. Adoption of this guidance will facilitate more accurate and interpretable research that will support the development of dietary recommendations regarding the intake of flavonoids.
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Affiliation(s)
- Douglas A Balentine
- From Unilever, Englewood Cliffs, NJ (DAB); Tufts University, Jean Mayer Human Nutrition Research Center on Aging, Boston, MA (JTD); University of Illinois at Urbana-Champaign, Urbana-Champaign, IL (JWE); Purdue University, West Lafayette, IN (MGF); The Sugar Association, Washington, DC (PCG); USDA Agricultural Research Service, Beltsville, MD (JMH); and Mars, Incorporated, McLean, VA (CLK-U)
| | - Johanna T Dwyer
- From Unilever, Englewood Cliffs, NJ (DAB); Tufts University, Jean Mayer Human Nutrition Research Center on Aging, Boston, MA (JTD); University of Illinois at Urbana-Champaign, Urbana-Champaign, IL (JWE); Purdue University, West Lafayette, IN (MGF); The Sugar Association, Washington, DC (PCG); USDA Agricultural Research Service, Beltsville, MD (JMH); and Mars, Incorporated, McLean, VA (CLK-U)
| | - John W Erdman
- From Unilever, Englewood Cliffs, NJ (DAB); Tufts University, Jean Mayer Human Nutrition Research Center on Aging, Boston, MA (JTD); University of Illinois at Urbana-Champaign, Urbana-Champaign, IL (JWE); Purdue University, West Lafayette, IN (MGF); The Sugar Association, Washington, DC (PCG); USDA Agricultural Research Service, Beltsville, MD (JMH); and Mars, Incorporated, McLean, VA (CLK-U).
| | - Mario G Ferruzzi
- From Unilever, Englewood Cliffs, NJ (DAB); Tufts University, Jean Mayer Human Nutrition Research Center on Aging, Boston, MA (JTD); University of Illinois at Urbana-Champaign, Urbana-Champaign, IL (JWE); Purdue University, West Lafayette, IN (MGF); The Sugar Association, Washington, DC (PCG); USDA Agricultural Research Service, Beltsville, MD (JMH); and Mars, Incorporated, McLean, VA (CLK-U)
| | - P Courtney Gaine
- From Unilever, Englewood Cliffs, NJ (DAB); Tufts University, Jean Mayer Human Nutrition Research Center on Aging, Boston, MA (JTD); University of Illinois at Urbana-Champaign, Urbana-Champaign, IL (JWE); Purdue University, West Lafayette, IN (MGF); The Sugar Association, Washington, DC (PCG); USDA Agricultural Research Service, Beltsville, MD (JMH); and Mars, Incorporated, McLean, VA (CLK-U)
| | - James M Harnly
- From Unilever, Englewood Cliffs, NJ (DAB); Tufts University, Jean Mayer Human Nutrition Research Center on Aging, Boston, MA (JTD); University of Illinois at Urbana-Champaign, Urbana-Champaign, IL (JWE); Purdue University, West Lafayette, IN (MGF); The Sugar Association, Washington, DC (PCG); USDA Agricultural Research Service, Beltsville, MD (JMH); and Mars, Incorporated, McLean, VA (CLK-U)
| | - Catherine L Kwik-Uribe
- From Unilever, Englewood Cliffs, NJ (DAB); Tufts University, Jean Mayer Human Nutrition Research Center on Aging, Boston, MA (JTD); University of Illinois at Urbana-Champaign, Urbana-Champaign, IL (JWE); Purdue University, West Lafayette, IN (MGF); The Sugar Association, Washington, DC (PCG); USDA Agricultural Research Service, Beltsville, MD (JMH); and Mars, Incorporated, McLean, VA (CLK-U)
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Consumption of a polyphenol-rich grape-wine extract lowers ambulatory blood pressure in mildly hypertensive subjects. Nutrients 2015; 7:3138-53. [PMID: 25942487 PMCID: PMC4446743 DOI: 10.3390/nu7053138] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 04/10/2015] [Accepted: 04/22/2015] [Indexed: 11/17/2022] Open
Abstract
Polyphenols in grape and wine have been suggested to contribute to the cardiovascular health benefits of the Mediterranean lifestyle. The reported effects of grape products on blood pressure (BP) remain, however, equivocal. In a double-blind placebo controlled crossover study, the effect of two grape extracts on BP and vascular function was assessed in 60 untreated, mildly hypertensive subjects after four weeks intervention. Both extracts (grape-red wine and grape alone) had high concentrations of anthocyanins and flavonols, but the grape alone was relatively poor in catechins and procyanidins. Parameters measured included ambulatory and office BP, flow-mediated vasodilation, arterial distensibility, platelet function and plasma lipoproteins. Results showed that 24-hour ambulatory systolic/diastolic BPs were significantly lower in the grape-wine extract intervention (135.9 ± 1.3/84.7 ± 0.8 mmHg; mean ± SEM) compared to placebo (138.9 ± 1.3/86.6 ± 1.2 mmHg), predominantly during daytime. Plasma concentrations of the vasoconstrictor endothelin-1 decreased by 10%, but other measures of vascular function were not affected. Grape juice extract alone had no effect on BP or any measures of vascular function. Polyphenol-rich food products, and may be specifically catechins and procyanidins, may thus help sustain a healthy BP and contribute to the healthy Mediterranean lifestyle.
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Gabardo T, Peripolli CM, de Andrade RB, Gemelli T, Lima JDO, Oliveira AS, da Silva Medeiros N, Wannmacher C, Dani C, Funchal C. Assessment of changes in energy metabolism parameters provoked by carbon tetrachloride in Wistar rats and the protective effect of white grape juice. Toxicol Rep 2015; 2:645-653. [PMID: 28962400 PMCID: PMC5598425 DOI: 10.1016/j.toxrep.2015.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 02/25/2015] [Accepted: 03/27/2015] [Indexed: 01/09/2023] Open
Abstract
The objective of this study was to evaluate the effect of organic and conventional grape juices consumption on the behavior of rats and their neuroprotective effect on the activity of brain energy metabolism enzymes in different brain areas of adult rats on the experimental model of hepatic encephalopathy. Male Wistar rats (90-days-old) were treated once a day with conventional or organic white grape juice by gavage for 14 days (7 μL/g). On the 15th day the rats received carbon tetrachloride (CCl4) in a single dose of 3.0 mL/kg. Cerebral cortex, hippocampus and cerebellum were dissected to measure the activity of creatine kinase (CK) and pyruvate kinase (PK). No changes in feeding behavior were observed after the treatment with the grapes juices. However, there was an increase in grooming behavior in the open field test provoked by both juices. CCl4 inhibited CK activity in cerebral cortex and hippocampus of the rats and CCl4 also reduced PK activity in all brain structures studied. Furthermore, both white grape juices prevented the decrease in the activity of CK and PK. Therefore, we can suggest that organic and conventional white grape juices could restore the activity of enzymes with a central role in brain energy metabolism.
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Affiliation(s)
- Tatiane Gabardo
- Centro Universitário Metodista - IPA, Porto Alegre, RS, Brazil
| | | | | | - Tanise Gemelli
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | | | | | - Clovis Wannmacher
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Caroline Dani
- Centro Universitário Metodista - IPA, Porto Alegre, RS, Brazil
| | - Cláudia Funchal
- Centro Universitário Metodista - IPA, Porto Alegre, RS, Brazil
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Clemens R, Drewnowski A, Ferruzzi MG, Toner CD, Welland D. Squeezing fact from fiction about 100% fruit juice. Adv Nutr 2015; 6:236S-243S. [PMID: 25770266 PMCID: PMC4352186 DOI: 10.3945/an.114.007328] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Total fruit intake in the United States is ~1 cup equivalent per day, or one-half of the 2010 Dietary Guidelines for Americans recommendation for adults. Two-thirds of the fruit consumed is whole fruit and one-third is 100% juice. The nutritional value of whole fruit, with the exception of fiber and vitamin C, may be retained with appropriate juice production methods and storage conditions. One-hundred percent fruit juice consumption is associated with a number of health benefits, such as improved cardiovascular health and decreased obesity, although some of these and other potential benefits are controversial. Comprehensive analyses of the evidence by the Academy of Nutrition and Dietetics in 2014, the US Dietary Guidelines Advisory Committee in 2010, and the Australian Dietary Guidelines of 2013 concluded that 100% fruit juice is not related to adiposity in children when consumed in appropriate amounts for age and energy needs. However, some reports suggest the consumption of fruit juice contributes to unhealthful outcomes, particularly among children. A dietary modeling study on the best ways to meet the fruit intake shortfall showed that a combination of whole fruit and 100% juice improved dietary density of potassium and vitamin C without significantly increasing total calories. Notably, 100% juice intake was capped at amounts consistent with the 2001 American Pediatric Association guidance. The preponderance of evidence supports the position that 100% fruit juice delivers essential nutrients and phytonutrients, provides year-round access to a variety of fruits, and is a cost-effective way to help people meet fruit recommendations.
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Affiliation(s)
- Roger Clemens
- Horn, La Mirada, CA; University of Southern California School of Pharmacy, Los Angeles, CA; and California State University, Northridge, CA
| | - Adam Drewnowski
- Center for Public Health Nutrition, University of Washington, Seattle, Seattle, WA
| | - Mario G Ferruzzi
- Department of Food Science and Department of Nutrition Science, Purdue University, West Lafayette, IN
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Vaisman N, Niv E. Daily consumption of red grape cell powder in a dietary dose improves cardiovascular parameters: a double blind, placebo-controlled, randomized study. Int J Food Sci Nutr 2015; 66:342-9. [PMID: 25666417 DOI: 10.3109/09637486.2014.1000840] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Consumption of polyphenol-rich food and food ingredient such as grape and grape products improved various cardiovascular parameters. In this study, we investigate the effect of dietary daily consumption of red grape cell powder (RGC) on blood pressure (BP) and flow-mediated dilatation (FMD) as well as on oxidative stress in 50 subjects with prehypertension and mild hypertension. The subjects were randomized into groups that consumed 200, 400 mg RGC or placebo daily for 12 weeks. RGC consumption was associated with an improvement of FMD (p = 0.013). There was a significant decrease in lipid peroxidation (p = 0.013) after 12 weeks in a combined RGC-treated group. The diastolic BP decreased significantly in the 200 mg RGC group compared to the placebo group (p = 0.032). Our results indicate that a daily supplementation, of red grape cell powder, for 12 weeks affects endothelial function, diastolic BP and oxidative stress without any adverse effects.
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Affiliation(s)
- Nachum Vaisman
- The Unit of Clinical Nutrition, Tel Aviv Sourasky Medical Center, Affiliated to the Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel
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Hyson DA. A review and critical analysis of the scientific literature related to 100% fruit juice and human health. Adv Nutr 2015; 6:37-51. [PMID: 25593142 PMCID: PMC4288278 DOI: 10.3945/an.114.005728] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The association between the consumption of pure (100%) fruit juice (PFJ) and human health is uncertain. The current review summarizes data published between 1995 and 2012 related to PFJ with a focus on juices that are widely available and studied in forms representing native juice without supplemental nutrients or enhanced phytochemical content. The effects of apple, cranberry, grape, grapefruit, orange, and pomegranate PFJ intake on outcomes linked to cancer, cardiovascular disease, cognition, hypertension, inflammation, oxidation, platelet function, urinary tract infection, and vascular reactivity are reviewed. Implications for bodyweight regulation are also addressed. The collective data are provocative although challenges and unanswered questions remain. There are many plausible mechanisms by which PFJ might be protective, and investigation of its effects on human health and disease prevention must remain an active area of research.
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Affiliation(s)
- Dianne A Hyson
- College of Social Sciences and Interdisciplinary Studies, California State University, Sacramento, CA
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Wang B, Liu K, Mi M, Wang J. Effect of fruit juice on glucose control and insulin sensitivity in adults: a meta-analysis of 12 randomized controlled trials. PLoS One 2014; 9:e95323. [PMID: 24743260 PMCID: PMC3990696 DOI: 10.1371/journal.pone.0095323] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 03/25/2014] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Diabetes mellitus has become a worldwide health problem. Whether fruit juice is beneficial in glycemic control is still inconclusive. This study aimed to synthesize evidence from randomized controlled trials on fruit juice in relationship to glucose control and insulin sensitivity. METHODS A strategic literature search of PubMed, EMBASE, and the Cochrane Library (updated to March, 2014) was performed to retrieve the randomized controlled trials that evaluated the effects of fruit juice on glucose control and insulin sensitivity. Study quality was assessed using the Jadad scale. Weighted mean differences were calculated for net changes in the levels of fasting glucose, fasting insulin, hemoglobin A1c (HbA1c), and homeostatic model assessment of insulin resistance (HOMA-IR) using fixed- or random-effects model. Prespecified subgroup and sensitivity analyses were performed to explore the potential heterogeneity. RESULTS Twelve trials comprising a total of 412 subjects were included in the current meta-analysis. The numbers of these studies that reported the data on fasting glucose, fasting insulin, HbA1c and HOMA-IR were 12, 5, 3 and 3, respectively. Fruit juice consumption did not show a significant effect on fasting glucose and insulin concentrations. The net change was 0.79 mg/dL (95% CI: -1.44, 3.02 mg/dL; P = 0.49) for fasting glucose concentrations and -0.74 µIU/ml (95% CI: -2.62, 1.14 µIU/ml; P = 0.44) for fasting insulin concentrations in the fixed-effects model. Subgroup analyses further suggested that the effect of fruit juice on fasting glucose concentrations was not influenced by population region, baseline glucose concentration, duration, type of fruit juice, glycemic index of fruit juice, fruit juice nutrient constitution, total polyphenols dose and Jadad score. CONCLUSION This meta-analysis showed that fruit juice may have no overall effect on fasting glucose and insulin concentrations. More RCTs are warranted to further clarify the association between fruit juice and glycemic control.
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Affiliation(s)
- Bin Wang
- Research Center for Nutrition and Food Safety, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Chongqing, P. R. China
| | - Kai Liu
- Research Center for Nutrition and Food Safety, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Chongqing, P. R. China
| | - Mantian Mi
- Research Center for Nutrition and Food Safety, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Chongqing, P. R. China
| | - Jian Wang
- Department of Nutrition, Xinqiao Hospital, Third Military Medical University, Chongqing, P. R. China
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Anderson JW, Weiter KM, Christian AL, Ritchey MB, Bays HE. Raisins compared with other snack effects on glycemia and blood pressure: a randomized, controlled trial. Postgrad Med 2014; 126:37-43. [PMID: 24393750 DOI: 10.3810/pgm.2014.01.2723] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To compare effects of raisin snacks with conventional snacks on glycemia and cardiovascular risk factors. MATERIALS AND METHODS A 12-week, randomized, controlled trial compared 3-times-a-day consumption of raisins with intake of processed snacks on glycemia and cardiovascular risk factors. Men and women were randomized to snacks (n = 15) or raisins (n = 31). Outcome measures were performed at baseline, 4, 8, and 12 weeks. RESULTS Fasting plasma glucose levels were not significantly affected by intake of raisins or snacks. Mean subject post prandial glucose levels were significantly reduced by raisin intake at 12 weeks; changes with raisin intake were -13.1 mg/dL (P = 0.003 vs baseline; P = 0.03 vs snacks). Eating raisins significantly decreased glycated hemoglobin (HbA1c) level (-0.12%; P = 0.004), a significantly greater level decrease than seen with snack intake (P = 0.036). Snack intake did not significantly affect subject systolic or diastolic blood pressure (BP). Raisin intake was associated with reductions in systolic blood pressure (SBP) at 4, 8, and 12 weeks with mean changes of -6.0 to 10.2 mmHg; all these changes were statistically significant (P = 0.015 to 0.001). Raisins were associated with significantly greater changes in diastolic blood pressure (DBP) at 4, 8, and 12 weeks than snacks (P < 0.05). Body weight did not significantly change within or between groups. CONCLUSIONS Regular consumption of raisins may reduce glycemia and cardiovascular risk factors, including BP rate.
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Affiliation(s)
- James W Anderson
- Professor Emeritus, Medicine and Clinical Nutrition, University of Kentucky, Lexington, KY.
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Effect of polyphenol-rich grape seed extract on ambulatory blood pressure in subjects with pre- and stage I hypertension. Br J Nutr 2013; 110:2234-41. [DOI: 10.1017/s000711451300161x] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Dietary polyphenols, such as those from grape products, may exert beneficial effects on cardiovascular health, including anti-hypertensive effects. We investigated the effect of a specific grape seed extract (GSE) rich in low-molecular-weight polyphenolic compounds on ambulatory blood pressure (ABP) in untreated subjects with pre- and stage I hypertension. In addition, potential mechanisms that could underlie the hypothesised effect of GSE on blood pressure (BP), and platelet aggregation, were explored. The study was designed as a double-blind, placebo-controlled, randomised, parallel-group intervention study including seventy healthy subjects with systolic BP between 120 and 159 mmHg. A 1-week run-in period was followed by an 8-week intervention period, during which subjects consumed capsules containing either 300 mg/d of GSE or a placebo (microcrystalline cellulose). Before and after the intervention, daytime ABP readings, 24 h urine samples and fasting and non-fasting blood samples were taken. The mean baseline systolic BP was 135·8 (se 1·3) mmHg and diastolic BP was 81·5 (se 0·9) mmHg. BP values were modestly, but not significantly, affected by the polyphenol-rich GSE treatment v. placebo with an effect of − 3·0 mmHg for systolic BP (95 % CI − 6·5, 0·5) and − 1·4 mmHg for diastolic BP (95 % CI − 3·5, 0·6). Vasoactive markers including endothelin-1, NO metabolites and asymmetric dimethylarginine, plasma renin activity and platelet aggregation were not affected by the GSE intervention. Our findings show that consumption of polyphenol-rich GSE does not significantly lower ABP in untreated subjects with pre- and stage I hypertension.
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Del Rio D, Rodriguez-Mateos A, Spencer JPE, Tognolini M, Borges G, Crozier A. Dietary (poly)phenolics in human health: structures, bioavailability, and evidence of protective effects against chronic diseases. Antioxid Redox Signal 2013; 18:1818-92. [PMID: 22794138 PMCID: PMC3619154 DOI: 10.1089/ars.2012.4581] [Citation(s) in RCA: 1572] [Impact Index Per Article: 142.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Human intervention trials have provided evidence for protective effects of various (poly)phenol-rich foods against chronic disease, including cardiovascular disease, neurodegeneration, and cancer. While there are considerable data suggesting benefits of (poly)phenol intake, conclusions regarding their preventive potential remain unresolved due to several limitations in existing studies. Bioactivity investigations using cell lines have made an extensive use of both (poly)phenolic aglycones and sugar conjugates, these being the typical forms that exist in planta, at concentrations in the low-μM-to-mM range. However, after ingestion, dietary (poly)phenolics appear in the circulatory system not as the parent compounds, but as phase II metabolites, and their presence in plasma after dietary intake rarely exceeds nM concentrations. Substantial quantities of both the parent compounds and their metabolites pass to the colon where they are degraded by the action of the local microbiota, giving rise principally to small phenolic acid and aromatic catabolites that are absorbed into the circulatory system. This comprehensive review describes the different groups of compounds that have been reported to be involved in human nutrition, their fate in the body as they pass through the gastrointestinal tract and are absorbed into the circulatory system, the evidence of their impact on human chronic diseases, and the possible mechanisms of action through which (poly)phenol metabolites and catabolites may exert these protective actions. It is concluded that better performed in vivo intervention and in vitro mechanistic studies are needed to fully understand how these molecules interact with human physiological and pathological processes.
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Affiliation(s)
- Daniele Del Rio
- The Laboratory of Phytochemicals in Physiology, Human Nutrition Unit, Department of Food Science, University of Parma, Parma, Italy
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