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Drewnowski A. A novel Nutrient Rich Food (NRFa11.3) score uses flavonoids and carotenoids to identify antioxidant-rich spices, herbs, vegetables, and fruit. Front Nutr 2024; 11:1386328. [PMID: 38699550 PMCID: PMC11063353 DOI: 10.3389/fnut.2024.1386328] [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: 02/15/2024] [Accepted: 04/04/2024] [Indexed: 05/05/2024] Open
Abstract
Introduction Nutrient profiling (NP) models designed to evaluate the healthfulness of plant-based foods ought to incorporate bioactive phytochemicals. Herbs and spices are one food group of current interest. Methods Two new versions of the well-established Nutrient Rich Food (NRF) index were applied to spices, herbs, vegetables, fruit, and other plant-based foods. Analyses used the US Department of Agriculture (USDA) SR-28 nutrient composition database merged with the USDA Expanded Flavonoid database 3.3. The NRF4.3 model was based on protein, fiber, potassium, and vitamin C. The NRFa11.3 model was based on micronutrients with reported antioxidant activity (vitamin C, vitamin E, selenium, copper, and zinc), carotenoids (alpha and beta carotene, beta-cryptoxanthin, lycopene, lutein/zeaxantin) and flavonoids. Saturated fat, added sugar, and sodium were nutrients to limit. The NRF algorithm was based on sums of percent daily values (%DVs) capped at 100%. Results The NRF4.3 model awarded high scores to herbs and spices, cocoa powder, and nuts, but did not discriminate well among vegetables and fruit. The NRFa11.3 model performed better. Green leafy, red orange and cruciferous vegetables had the highest carotenoid content. Highest in flavonoids were cocoa powder, herbs and spices, and berries. Highest combined NRFa11.3 values were observed for herbs and spices, green leafy vegetables, cocoa, nuts, and red-orange and cruciferous vegetables. Discussion Fresh and dry herbs and spices, often ignored by NP models, were particularly nutrient-rich and may provide non-negligible amounts of key phytonutrients to the human diet.
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Affiliation(s)
- Adam Drewnowski
- Center for Public Health Nutrition, University of Washington, Seattle, WA, United States
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Liu H, Cheng Z, Li J, Xie J. The dynamic changes in pigment metabolites provide a new understanding of the colouration of Pyracantha fortuneana at maturity. Food Res Int 2024; 175:113720. [PMID: 38129036 DOI: 10.1016/j.foodres.2023.113720] [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: 09/26/2023] [Revised: 11/10/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023]
Abstract
The type, content and accumulation characteristics of pigments are the material basis for fruit colour and the evaluation basis of the fruit maturity and nutritional value of P. fortuneana. However, little information is available on the changes in carotenoids, anthocyanins, procyanidins and major flavones during the ripening process of P. fortuneana fruits. Thus, this study investigated the colour conversion characteristics, the main changes in the above four metabolites and the association landscape with those metabolites. The results showed that thirty-nine kinds of carotenoids and derivatives, eighteen anthocyanins, five procyanidins and five flavone compounds were identified in the fruits of P. fortuneana. The total content and contents of most individual carotenoids, anthocyanins, procyanidins and flavones reached the highest values at the TS2, TS4, TS1 and TS1 stages, respectively. Among the variations, the contents of β-carotene and lutein increased first and then decreased, cyanidin-3-galactoside and cyanidin-3-glucoside accumulated, the concentrations of procyanidin C1 and procyanidin B2 decreased, and the contents of rutin and quercetin-3-O-glucoside also decreased; these changers were responsible for the main changes in carotenoids, anthocyanidin, procyanidins and flavones, respectively. For the correlation analysis results, there might be two modes of action that together affected the colour conversion of P. fortuneana fruits during ripening, i.e., (E/Z)-phytoene communicated with the carotenoid metabolic pathway that might promote the accumulated ABA content, which might cause the increased anthocyanidin (primarily through cyanidin-3-(6-malonyl-beta-d-glucoside) (C3MG)) at the final stage; most of the decreased flavone and procyanidin metabolites produced by the flavonoid metabolic pathway were another important factor affecting the accumulation of C3MG.
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Affiliation(s)
- Huijuan Liu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Provincial Engineering Research Center of Ecological Food Innovation, School of Public Health, Guizhou Medical University, Guiyang 550025, PR China
| | - Zhifei Cheng
- Basic Teaching Department, Guizhou Vocational College of Agriculture, Guizhou 551499, PR China
| | - Junliang Li
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Provincial Engineering Research Center of Ecological Food Innovation, School of Public Health, Guizhou Medical University, Guiyang 550025, PR China
| | - Jiao Xie
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Provincial Engineering Research Center of Ecological Food Innovation, School of Public Health, Guizhou Medical University, Guiyang 550025, PR China.
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Nagre K, Singh N, Ghoshal C, Tandon G, Iquebal MA, Nain T, Bana RS, Meena A. Probing the potential of bioactive compounds of millets as an inhibitor for lifestyle diseases: molecular docking and simulation-based approach. Front Nutr 2023; 10:1228172. [PMID: 37823087 PMCID: PMC10562582 DOI: 10.3389/fnut.2023.1228172] [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: 05/24/2023] [Accepted: 08/07/2023] [Indexed: 10/13/2023] Open
Abstract
Millets are becoming more popular as a healthy substitute for people with lifestyle disorders. They offer dietary fiber, polyphenols, fatty acids, minerals, vitamins, protein, and antioxidants. The nutritional importance of millets leads to the present in-silico study of selective bioactive compounds docked against the targets of lifestyle diseases, viz., diabetes, hypertension, and atherosclerosis using molecular docking and molecular simulations approach. Pharmacokinetic analysis was also carried out to analyse ADME properties and toxicity analysis, drug-likeliness, and finally target prediction for new targets for uncharacterized compounds or secondary targets for recognized molecules by Swiss Target Prediction was also done. The docking results revealed that the bioactive compound flavan-4-ol, among all the 50 compounds studied, best docked to all the four targets of lifestyle diseases, viz., Human dipeptidyl peptidase IV (-5.94 kcal mol-1 binding energy), Sodium-glucose cotransporter-2 (-6.49 kcal mol-1) diabetes-related enzyme, the Human angiotensin-converting enzyme (-6.31 kcal mol-1) which plays a significant role in hypertension, and Proprotein convertase subtilisin kexin type 9 (-4.67 kcal mol-1) for atherosclerosis. Molecular dynamics simulation analysis substantiates that the flavan-4-ol forms a better stability complex with all the targets. ADMET profiles further strengthened the candidature of the flavan-4-ol bioactive compound to be considered for trial as an inhibitor of targets DPPIV, SGLT2, PCSK9, and hACE. We suggest that more research be conducted, taking Flavon-4-ol into account where it can be used as standard treatment for lifestyle diseases.
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Affiliation(s)
- Kajal Nagre
- Division of Genetics, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi, India
| | - Nirupma Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi, India
| | - Chandrika Ghoshal
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi, India
| | - Gitanjali Tandon
- Centre for Agricultural Bioinformatics, ICAR-Indian Agricultural Statistics Research Institute, Pusa Campus, New Delhi, India
| | - Mir Asif Iquebal
- Centre for Agricultural Bioinformatics, ICAR-Indian Agricultural Statistics Research Institute, Pusa Campus, New Delhi, India
| | - Tarsem Nain
- Department of Genetics, Maharshi Dayanand University, Rohtak, India
| | - Ram Swaroop Bana
- Division of Agronomy, Indian Agricultural Research Institute, Pusa Campus, New Delhi, India
| | - Anita Meena
- ICAR-Central Institute for Arid Horticulture, Beechwal, Bikaner, India
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Mao T, Akshit FNU, Mohan MS. Effects of anthocyanin supplementation in diet on glycemic and related cardiovascular biomarkers in patients with type 2 diabetes: a systematic review and meta-analysis of randomized controlled trials. Front Nutr 2023; 10:1199815. [PMID: 37810926 PMCID: PMC10556752 DOI: 10.3389/fnut.2023.1199815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 09/01/2023] [Indexed: 10/10/2023] Open
Abstract
Purpose This study is the first systematic review and meta-analysis based on RCTs on the effects of anthocyanins on patients with type 2 diabetes mellitus (T2DM) and the effect on T2DM-related cardiovascular disease. Methods RCTs published in English from five electronic databases were evaluated for glycated hemoglobin (HbA1c), fasting blood glucose (FBG), 2-h postprandial blood glucose, fasting insulin, model assessment for insulin resistance, triglycerides (TG), total cholesterol (TC), high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, systolic blood pressure, and diastolic blood pressure. The quality of the studies was rated (Cochrane Risk of Bias tool) and weighted mean differences were calculated (DerSimonian-Laird model with random effects). Leave-one-out sensitivity, subgroup, and publication bias analyses were conducted. The strength of the evidence was rated according to the GRADE guidelines. Results In all, 13 RCTs were analyzed out of the 239 identified studies, with a duration longer than 4 weeks (703 participants with T2DM). Our findings indicate that a median dose of 320 mg/day anthocyanins, either from fruit extracts or pure supplements, for a median intervention length of 8 weeks significantly reduced HbA1c [Weighted Mean Difference (WMD) -0.31, p = 0.00], FBG (WMD -0.63, p = 0.00), 2-h postprandial glucose (WMD -1.60, p = 0.00), TG (WMD -0.45, p = 0.01), and LDL (WMD -0.26 p = 0.02). However, the effects of anthocyanins on fasting insulin, HOMA-IR, TC, HDL cholesterol, systolic blood pressure, and diastolic blood pressure in patients with T2DM were not statistically significant. Anthocyanins from fruit extracts or powder exhibited a higher reduction of HbA1c compared to pure anthocyanin supplements. Conclusion The significant improvements in glycemic parameters and lipid profile, suggest the benefits of anthocyanins, especially from fruit extract or powder, in the management of T2DM, and their ability to delay the onset of lipid disorder-related diseases such as cardiovascular disease associated with T2DM. The mechanism behind this reduction in glycemic markers could be attributed to the antioxidant and anti-inflammatory activity of anthocyanins. Further research with well-designed RCTs is required to determine the optimal dosage of anthocyanins for the treatment of T2DM and to comprehend the consequences.
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Affiliation(s)
| | | | - Maneesha S. Mohan
- Alfred Dairy Science Laboratory, Department of Dairy and Food Science, South Dakota State University, Brookings, SD, United States
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Chen X, Lu H, Chen Y, Sang H, Tang Y, Zhao Y. Composite dietary antioxidant index was negatively associated with the prevalence of diabetes independent of cardiovascular diseases. Diabetol Metab Syndr 2023; 15:183. [PMID: 37684665 PMCID: PMC10486118 DOI: 10.1186/s13098-023-01150-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 08/10/2023] [Indexed: 09/10/2023] Open
Abstract
AIM The association between composite dietary antioxidant index (CDAI) and diabetes remains unknown. Our study was to investigate the association of CDAI with diabetes. METHODS A total of 11,956 participants were enrolled from the National Health and Nutrition Examination Surveys (NHANES). The CDAI was calculated from the intake of six dietary antioxidants. Multivariable logistic regressions were performed to explore the associations between CDAI and the prevalence of diabetes and glycemic index. Non-linear associations were explored using restricted cubic splines. RESULTS In the multivariate logistic regression model, the odds ratio (95% confidence interval) of CDAI associating with obesity was 0.98 (0.97-1.00; p = 0.033). Compared with the lowest quartile, the highest quartile was related to 0.84-fold risk of diabetes (0.71-0.99; p = 0.035). However, CDAI was not independently associated with fasting glucose and hemoglobin A1c. CONCLUSION CDAI was negatively associated with diabetes and the relationship was independent of other traditional risk factors.
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Affiliation(s)
- Xiaojie Chen
- Department Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - He Lu
- Department of Cardiology, The People's Hospital of Jiawang District of Xuzhou, XuZhou, China
| | - Yingwei Chen
- Department Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Haiqiang Sang
- Department Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yi Tang
- Department Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yifan Zhao
- Department Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Zuelch ML, Radtke MD, Holt RR, Basu A, Burton-Freeman B, Ferruzzi MG, Li Z, Shay NF, Shukitt-Hale B, Keen CL, Steinberg FM, Hackman RM. Perspective: Challenges and Future Directions in Clinical Research with Nuts and Berries. Adv Nutr 2023; 14:1005-1028. [PMID: 37536565 PMCID: PMC10509432 DOI: 10.1016/j.advnut.2023.07.010] [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] [Received: 03/23/2023] [Revised: 07/11/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023] Open
Abstract
Consumption of nuts and berries are considered part of a healthy eating pattern. Nuts and berries contain a complex nutrient profile consisting of essential vitamins and minerals, fiber, polyunsaturated fatty acids, and phenolics in quantities that improve physiological outcomes. The spectrum of health outcomes that may be impacted by the consumptions of nuts and berries includes cardiovascular, gut microbiome, and cognitive, among others. Recently, new insights regarding the bioactive compounds found in both nuts and berries have reinforced their role for use in precision nutrition efforts. However, challenges exist that can affect the generalizability of outcomes from clinical studies, including inconsistency in study designs, homogeneity of test populations, variability in test products and control foods, and assessing realistic portion sizes. Future research centered on precision nutrition and multi-omics technologies will yield new insights. These and other topics such as funding streams and perceived risk-of-bias were explored at an international nutrition conference focused on the role of nuts and berries in clinical nutrition. Successes, challenges, and future directions with these foods are presented here.
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Affiliation(s)
- Michelle L Zuelch
- Department of Nutrition, University of California, Davis, CA, United States
| | - Marcela D Radtke
- Department of Nutrition, University of California, Davis, CA, United States
| | - Roberta R Holt
- Department of Nutrition, University of California, Davis, CA, United States
| | - Arpita Basu
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV, United States
| | - Britt Burton-Freeman
- Department of Food Science and Nutrition, Illinois Institute of Technology, Chicago, IL, United States
| | - Mario G Ferruzzi
- Department of Pediatrics, Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Zhaoping Li
- UCLA Center for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Neil F Shay
- Department of Food Science and Technology, Oregon State University, Corvallis, OR, United States
| | - Barbara Shukitt-Hale
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Carl L Keen
- Department of Nutrition, University of California, Davis, CA, United States; Department of Internal Medicine, University of California, Davis, CA, United States
| | | | - Robert M Hackman
- Department of Nutrition, University of California, Davis, CA, United States.
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Zhou Y, Xu P, Qin S, Zhu Y, Gu K. The associations between dietary flavonoid intake and the prevalence of diabetes mellitus: Data from the National Health and Nutrition Examination Survey 2007-2010 and 2017-2018. Front Endocrinol (Lausanne) 2023; 14:1250410. [PMID: 37664856 PMCID: PMC10474301 DOI: 10.3389/fendo.2023.1250410] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
Background Diabetes mellitus (DM) is a prominent health concern worldwide, leading to the high incidence of disability and mortality and bringing in heavy healthcare and social burden. Plant-based diets are reported associated with a reduction of DM risk. Plant-based diets are rich in flavonoids, which possess properties such as scavenging free radicals and exerting both anti-inflammatory and antioxidant effects. Purpose However, whether dietary flavonoids are associated with the prevalence of DM remains controversial. The potential reasons for contradictory epidemiological outcomes on the association between dietary flavonoids and DM prevalence have not been determined. Methods To address these limitations, we employed data from 22,481 participants in the National Health and Nutrition Examination Survey to explore the association between the intake of flavonoids and DM prevalence by weighted Logistic regression and weighted restricted cubic splines. Results We found that the prevalence of DM was inversely associated with the intake of total flavonoids in the second quartile [Odds Ratio (OR) 0.78 95% confidence interval (CI) (0.63, 0.97), p = 0.028], in the third quartile [0.76 (0.60, 0.97), p = 0.031], and in the fourth quartile [0.80 (0.65, 0.97), p = 0.027]. However, the p for trend was not significant [0.94 (0.88, 1.01), p = 0.096]. Moreover, the association between DM prevalence and the intake of total flavonoids was significantly influenced by race (p for interaction = 0.006). In Mexican Americans, there was a significant positive association between DM prevalence and total flavonoid intake within the third quartile [1.04 (1.02, 1.07), p = 0.003]. Total flavan-3-ol and subtotal catechin intake exhibited a non-linear U-shaped association with DM prevalence (p for non-linearity < 0.0001 and p for non-linearity < 0.0001, respectively). Compared to the first quartile of corresponding intakes, consumption within the third quartile of subtotal catechins [0.70 (0.55, 0.89), p = 0.005] and total flavan-3-ols [0.65 (0.50, 0.84), p = 0.002] was associated with a lower prevalence of DM. Conclusion Taken together, our study may provide preliminary research evidence for personalized improvement of dietary habits to reduce the prevalence of diabetes.
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Affiliation(s)
- Yanjun Zhou
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Peng Xu
- Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Shaolei Qin
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu, China
| | - Yan Zhu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Ke Gu
- Department of Radiotherapy and Oncology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
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Nunes AR, Costa EC, Alves G, Silva LR. Nanoformulations for the Delivery of Dietary Anthocyanins for the Prevention and Treatment of Diabetes Mellitus and Its Complications. Pharmaceuticals (Basel) 2023; 16:ph16050736. [PMID: 37242519 DOI: 10.3390/ph16050736] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/06/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Diabetes mellitus (DM) is a metabolic disease characterized by abnormal blood glucose levels-hyperglycemia, caused by a lack of insulin secretion, impaired insulin action, or a combination of both. The incidence of DM is increasing, resulting in billions of dollars in annual healthcare costs worldwide. Current therapeutics aim to control hyperglycemia and reduce blood glucose levels to normal. However, most modern drugs have numerous side effects, some of which cause severe kidney and liver problems. On the other hand, natural compounds rich in anthocyanidins (cyanidin, delphinidin, malvidin, pelargonidin, peonidin, and petunidin) have also been used for the prevention and treatment of DM. However, lack of standardization, poor stability, unpleasant taste, and decreased absorption leading to low bioavailability have hindered the application of anthocyanins as therapeutics. Therefore, nanotechnology has been used for more successful delivery of these bioactive compounds. This review summarizes the potential of anthocyanins for the prevention and treatment of DM and its complications, as well as the strategies and advances in the delivery of anthocyanins using nanoformulations.
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Affiliation(s)
- Ana R Nunes
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- CNC-Centre for Neuroscience and Cell Biology, Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Elisabete C Costa
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Gilberto Alves
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Luís R Silva
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- CPIRN-UDI-IPG-Research Unit for Inland Development, Center for Potential and Innovation of Natural Resources, Polytechnic of Guarda, 6300-554 Guarda, Portugal
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Pólo II-Pinhal de Marrocos, 3030-790 Coimbra, Portugal
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Dietary Strawberries Improve Serum Metabolites of Cardiometabolic Risks in Adults with Features of the Metabolic Syndrome in a Randomized Controlled Crossover Trial. Int J Mol Sci 2023; 24:ijms24032051. [PMID: 36768375 PMCID: PMC9916764 DOI: 10.3390/ijms24032051] [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: 12/15/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023] Open
Abstract
Dietary strawberries have been shown to improve cardiometabolic risks in multiple clinical trials. However, no studies have reported effects on serum metabolomic profiles that may identify the target pathways affected by strawberries as underlying mechanisms. We conducted a 14-week randomized, controlled crossover study in which participants with features of metabolic syndrome were assigned to one of the three arms for four weeks separated by a one-week washout period: control powder, 1 serving (low dose: 13 g strawberry powder/day), or 2.5 servings (high dose: 32 g strawberry powder/day). Blood samples, anthropometric measures, blood pressure, and dietary and physical activity data were collected at baseline and at the end of each four-week phase of intervention. Serum samples were analyzed for primary metabolites and complex lipids using different mass spectrometry methods. Mixed-model ANOVA was used to examine differences in the targeted metabolites between treatment phases, and LASSO logistic regression was used to examine differences in the untargeted metabolites at end of the strawberry intervention vs. the baseline. The findings revealed significant differences in the serum branched-chain amino acids valine and leucine following strawberry intervention (high dose) compared with the low-dose and control phases. Untargeted metabolomic profiles revealed several metabolites, including serum phosphate, benzoic acid, and hydroxyphenyl propionic acid, that represented improved energy-metabolism pathways, compliance measures, and microbial metabolism of strawberry polyphenols, respectively. Thus, dietary supplementation of strawberries significantly improves the serum metabolic profiles of cardiometabolic risks in adults.
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Ali Redha A, Anusha Siddiqui S, Zare R, Spadaccini D, Guazzotti S, Feng X, Bahmid NA, Wu YS, Ozeer FZ, Aluko RE. Blackcurrants: A Nutrient-Rich Source for the Development of Functional Foods for Improved Athletic Performance. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2162076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ali Ali Redha
- The Department of Public Health and Sport Sciences, Faculty of Health and Life Sciences, University of Exeter Medical School, University of Exeter, Exeter, UK
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Brisbane, QLD 4072, Australia
| | - Shahida Anusha Siddiqui
- Campus Straubing for Biotechnology and Sustainability, Technical University of Munich (TUM), Straubing, Germany
- DIL e.V.– German Institute of Food Technologies, Quakenbrück, Germany
| | - Reza Zare
- Meshkat Sports Complex, Karaj, Alborz Province, Iran
- Arses Sports Complex, Karaj, Alborz Province, Iran
| | - Daniele Spadaccini
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Silvia Guazzotti
- Department of Translational Medicine (DiMeT), Center for Translational Research on Autoimmune & Allergic Diseases – CAAD, University of Piemonte Orientale, Novara, Italy
| | - Xi Feng
- Department of Nutrition, Food Science and Packaging, San Jose State University, San Jose, California, USA
| | | | - Yuan Seng Wu
- Centre for Virus and Vaccine Research, School of Medical and Life Sciences, Sunway University, Selangor, Malaysia
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Selangor, Malaysia
| | - Fathima Zahraa Ozeer
- Centre for Virus and Vaccine Research, School of Medical and Life Sciences, Sunway University, Selangor, Malaysia
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Selangor, Malaysia
| | - Rotimi E. Aluko
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada
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German-Ponciano LJ, Rosas-Sánchez GU, Cueto-Escobedo J, Fernández-Demeneghi R, Guillén-Ruiz G, Soria-Fregozo C, Herrera-Huerta EV, Rodríguez-Landa JF. Participation of the Serotonergic System and Brain-Derived Neurotrophic Factor in the Antidepressant-like Effect of Flavonoids. Int J Mol Sci 2022; 23:ijms231810896. [PMID: 36142808 PMCID: PMC9505567 DOI: 10.3390/ijms231810896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/10/2022] [Accepted: 09/11/2022] [Indexed: 11/16/2022] Open
Abstract
Depressive disorders are among the most disabling diseases experienced around the world, and their incidence has significantly increased over the last few decades due to multiple environmental, social, and biological factors. The search for new pharmacological alternatives to treat depression is a global priority. In preclinical research, molecules obtained from plants, such as flavonoids, have shown promising antidepressant-like properties through several mechanisms of action that have not been fully elucidated, including crossing of the blood brain barrier (BBB). This review will focus on discussing the main findings related to the participation of the serotonergic system and brain-derived neurotrophic factor (BDNF) on the antidepressant-like effect of some flavonoids reported by behavioral, neurochemical, and molecular studies. In this sense, evidence shows that depressive individuals have low levels of serotonin and BDNF, while flavonoids can reverse it. Finally, the elucidation of the mechanism used by flavonoids to modulate serotonin and BDNF will contribute to our understanding of the neurobiological bases underlying the antidepressant-like effects produced by these natural compounds.
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Affiliation(s)
| | | | - Jonathan Cueto-Escobedo
- Departamento de Investigación Clínica y Traslacional Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa 91190, Mexico
| | | | - Gabriel Guillén-Ruiz
- Programa de Investigadoras e Investigadores por México CONACyT-Instituto de Neuroetología, Universidad Veracruzana, Xalapa 91190, Mexico
| | - César Soria-Fregozo
- Centro Universitario de Los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico
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Koh YQ, Sin YAD, Rong HJ, Chua THS, Ho SHS, Ho HK. Evaluation of anthoxanthins and their actions on digestive enzyme inhibition when used independently and in combination. Heliyon 2022; 8:e10131. [PMID: 35991985 PMCID: PMC9389255 DOI: 10.1016/j.heliyon.2022.e10131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/22/2022] [Accepted: 07/27/2022] [Indexed: 12/02/2022] Open
Abstract
Carbohydrate digestibility is a key determinant for elevated postprandial hyperglycemia (PPHG). Apart from dietary restrictions, one of the strategies to reduce PPHG is to limit the activity of carbohydrate digestive enzymes within the gastrointestinal tract in order to reduce monosaccharide absorption rates. The present work aimed to assess the inhibitory capabilities of digestive enzymes (e.g., α-glucosidase and α-amylase) by anthoxanthins when used independently, in combination with acarbose, or with a different anthoxanthin. Our results showed that quercetin, myricetin, and luteolin presented lower IC50 values than acarbose and inhibited α-glucosidase through mixed-type inhibition. On the other hand, acarbose when compared with these anthoxanthins, remained the most potent inhibitor of α-amylase. Combinatorial treatment (i) acarbose-quercetin and (ii) myricetin-luteolin showed synergistic activity (CI value less than 0.9) in α-glucosidase inhibition. An additive effect (CI value between 0.9 and 1.1) in α-glucosidase inhibition was observed when acarbose-myricetin, acarbose-luteolin or when a combination of two different anthoxanthins (quercetin-myricetin and quercetin-luteolin) was used. This study suggests the potential use of anthoxanthins as functional food ingredients to mitigate PPHG towards the management of T2DM.
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Affiliation(s)
- Yong Qin Koh
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Yu Ang Desmond Sin
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Hengyang Justin Rong
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Teng Hui Sean Chua
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | | | - Han Kiat Ho
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
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13
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Tan LJ, Hwang SB, Jun S, Joung H, Shin S. Dietary antioxidant consumption and the risk of type 2 diabetes in South Korean adults: a prospective cohort study based on the Health Examinees study. BMJ Open 2022; 12:e065073. [PMID: 35820762 PMCID: PMC9277397 DOI: 10.1136/bmjopen-2022-065073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES Antioxidants are common dietary compounds with multiple health benefits. This study aimed to identify the association between dietary antioxidant consumption and the incidence of type 2 diabetes (T2D) mellitus (defined using the Korean Diabetes Association criteria) in South Korean adults. DESIGN Baseline and follow-up data from the Health Examinees (HEXA) study, a large-scale community-based genomic cohort study conducted in South Korea SETTING: A South Korean community. PARTICIPANTS A total of 20 594 participants, aged 40-79 years, who participated in the baseline and follow-up surveys of the HEXA study were included. After an average of 5 years of follow-up, there were 332 men and 360 women with T2D. RESULTS Participants with the highest total flavonoid consumption (Q5) had a lower risk of T2D (men: HR 0.63; 95% CI 0.42 to 0.93; p value for trend=0.0169; and women: HR 0.54; 95% CI 0.438 to 0.78; p value for trend=0.0001) than those with the lowest consumption (Q1). Dietary total antioxidant capacity was significantly inversely associated with the development of T2D mellitus in women participants alone (HR 0.58; 95% CI 0.40 to 0.83; p value for trend=0.0004). Stratified analyses according to age and body mass index (BMI) showed that dietary total flavonoid consumption and total antioxidant capacity had a negative association with the development of T2D in women aged >52 years and women with BMI >25 kg/m2. CONCLUSIONS Dietary flavonoid consumption and total antioxidant capacity were associated with a lower risk of T2D in South Korean adults, especially in women aged >52 years and overweight. The findings of this study may provide reference data for the modification of dietary guidelines for South Koreans.
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Affiliation(s)
- Li-Juan Tan
- Department of Food and Nutrition, Chung-Ang University, Seoul, South Korea
| | - Su Bin Hwang
- Department of Food and Nutrition, Chung-Ang University, Seoul, South Korea
| | - Shinyoung Jun
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang, South Korea
| | - Hyojee Joung
- Department of Public Health, Graduate School of Public Health, Seoul National University, Seoul, South Korea
| | - Sangah Shin
- Department of Food and Nutrition, Chung-Ang University, Seoul, South Korea
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14
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Morzel M, Canon F, Guyot S. Interactions between Salivary Proteins and Dietary Polyphenols: Potential Consequences on Gastrointestinal Digestive Events. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:6317-6327. [PMID: 35583948 DOI: 10.1021/acs.jafc.2c01183] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The present review documents the current knowledge and hypotheses on how polyphenols-saliva interactions may modulate the bioaccessibility or bioavailability of nutrients and highlights research prospects in the field. After an updated description of the different classes of dietary polyphenols and their modifications by food processing or digestion, an overview of interactions between salivary proteins and polyphenols (with an emphasis on tannins) is provided. In vitro studies show that the solubility of salivary protein-tannin complexes in gastric conditions depends on the degree of tannin polymerization, while complexes are partly solubilized by bile salts. Salivary proteins-polyphenols interactions may affect digestive processes. For example, polyphenols can bind to and inhibit salivary amylase, with downstream consequences on starch digestion. Some salivary proteins (PRPs) prevent tannin-induced reduced protein digestibility, probably through binding tannins before they interact with digestive proteases. Salivary proteins may also act as scavenger molecules to limit the intestinal uptake of tannins.
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Affiliation(s)
| | - Francis Canon
- Centre des Sciences du Goût et de l'Alimentation, UMR 1324 INRAE, UMR 6265 CNRS, Université de Bourgogne Franche-Comté, F-21000 Dijon, France
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15
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Adu MD, Bondonno CP, Parmenter BH, Sim M, Davey RJ, Murray K, Radavelli-Bagatini S, Magliano DJ, Daly RM, Shaw JE, Lewis JR, Hodgson JM, Bondonno NP. Association between non-tea flavonoid intake and risk of type 2 diabetes: the Australian diabetes, obesity and lifestyle study. Food Funct 2022; 13:4459-4468. [PMID: 35380573 DOI: 10.1039/d1fo04209b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Studies examining the association between flavonoid intake and measures of insulin resistance and β-cell dysfunction, as markers of type 2 diabetes (T2DM) across the adult lifespan, may provide insights into how flavonoids influence T2DM risk. This study examined the cross-sectional associations between flavonoid intakes, from dietary sources other than tea, and biomarkers of glucose tolerance and insulin sensitivity in adults aged 25 years and older participating in the Australian diabetes, obesity and lifestyle (AusDiab) study. Additionally, longitudinal associations between non-tea flavonoid intakes and incident T2DM over 12 years were explored. Eligible participants (n = 7675) had no previous history of T2DM and had completed a food-frequency questionnaire at baseline (1999-2000) from which flavonoid intakes were calculated using United States Department of Agriculture Databases. Restricted cubic splines in regression models were used to examine cross-sectional associations between intakes of total non-tea flavonoids and selected flavonoid subclasses and measures of glucose tolerance and insulin sensitivity including glycated haemoglobin (HbA1c), homeostasis model assessment of β-cell function (HOMA2-% β) and insulin sensitivity (HOMA2-% S), 2-hour post load plasma glucose (PLG), fasting plasma glucose (FPG) and fasting insulin levels. Associations between flavonoid intakes and T2DM risk were estimated using Cox proportional hazards models. Cross-sectionally, significant beneficial associations were observed for intakes of total flavonoids and the flavan-3-ol-monomer, proanthocyanidin, flavonol and anthocyanidin subclasses with measures of glucose tolerance and insulin sensitivity (P < 0.05 for all), except fasting plasma glucose. During follow-up, 344 incident T2DM cases were recorded. Participants with the highest total flavonoid intake had a 21% lower risk of T2DM over 12 years, although this was not statistically significant in multivariable adjusted models [HR (95% CI): 0.79 (0.57, 1.09)]. This study provides some evidence that consuming flavonoid-rich foods may be protective against T2DM through mechanisms related to glucose tolerance and insulin sensitivity.
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Affiliation(s)
- Mary D Adu
- Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia.
| | - Catherine P Bondonno
- Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia. .,Medical School, University of Western Australia, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Benjamin H Parmenter
- Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia. .,School of Biomedical Sciences, University of Western Australia, Royal Perth Hospital, Perth, Australia
| | - Marc Sim
- Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia. .,Medical School, University of Western Australia, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Raymond J Davey
- Curtin School of Allied Health, Curtin University, Perth, Western Australia, Australia
| | - Kevin Murray
- School of Population and Global Health, University of Western Australia, Australia
| | - Simone Radavelli-Bagatini
- Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia.
| | - Dianna J Magliano
- Baker Heart and Diabetes Institute (HDI), Melbourne, VIC, Australia.,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Jonathan E Shaw
- Baker Heart and Diabetes Institute (HDI), Melbourne, VIC, Australia.,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Joshua R Lewis
- Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia. .,Medical School, University of Western Australia, Royal Perth Hospital, Perth, Western Australia, Australia.,Centre for Kidney Research, Children Hospital at Westmead, School of Public Health, Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Jonathan M Hodgson
- Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia. .,Medical School, University of Western Australia, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Nicola P Bondonno
- Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia.
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16
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17
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Olivera-Nappa Á, Contreras S, Tevy MF, Medina-Ortiz D, Leschot A, Vigil P, Conca C. Patient-Wise Methodology to Assess Glycemic Health Status: Applications to Quantify the Efficacy and Physiological Targets of Polyphenols on Glycemic Control. Front Nutr 2022; 9:831696. [PMID: 35252308 PMCID: PMC8892255 DOI: 10.3389/fnut.2022.831696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/25/2022] [Indexed: 11/13/2022] Open
Abstract
A growing body of evidence indicates that dietary polyphenols could be used as an early intervention to treat glucose-insulin (G-I) dysregulation. However, studies report heterogeneous information, and the targets of the intervention remain largely elusive. In this work, we provide a general methodology to quantify the effects of any given polyphenol-rich food or formulae over glycemic regulation in a patient-wise manner using an Oral Glucose Tolerance Test (OGTT). We use a mathematical model to represent individual OGTT curves as the coordinated action of subsystems, each one described by a parameter with physiological interpretation. Using the parameter values calculated for a cohort of 1198 individuals, we propose a statistical model to calculate the risk of dysglycemia and the coordination among subsystems for each subject, thus providing a continuous and individual health assessment. This method allows identifying individuals at high risk of dysglycemia—which would have been missed with traditional binary diagnostic methods—enabling early nutritional intervention with a polyphenol-supplemented diet where it is most effective and desirable. Besides, the proposed methodology assesses the effectiveness of interventions over time when applied to the OGTT curves of a treated individual. We illustrate the use of this method in a case study to assess the dose-dependent effects of Delphinol® on reducing dysglycemia risk and improving the coordination between subsystems. Finally, this strategy enables, on the one hand, the use of low-cost, non-invasive methods in population-scale nutritional studies. On the other hand, it will help practitioners assess the effectiveness of an intervention based on individual vulnerabilities and adapt the treatment to manage dysglycemia and avoid its progression into disease.
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Affiliation(s)
- Álvaro Olivera-Nappa
- Centre for Biotechnology and Bioengineering (CeBiB), University of Chile, Santiago, Chile
- Department of Chemical Engineering, Biotechnology and Materials, University of Chile, Santiago, Chile
- *Correspondence: Álvaro Olivera-Nappa
| | - Sebastian Contreras
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
- Sebastian Contreras
| | - María Florencia Tevy
- Laboratory of Cell Biology, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - David Medina-Ortiz
- Centre for Biotechnology and Bioengineering (CeBiB), University of Chile, Santiago, Chile
- Department of Chemical Engineering, Biotechnology and Materials, University of Chile, Santiago, Chile
| | | | - Pilar Vigil
- Reproductive Health Research Institute, Santiago, Chile
| | - Carlos Conca
- Centre for Biotechnology and Bioengineering (CeBiB), University of Chile, Santiago, Chile
- Center for Mathematical Modelling (CMM), University of Chile, Santiago, Chile
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18
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Qi Q, Chu M, Yu X, Xie Y, Li Y, Du Y, Liu X, Zhang Z, Shi J, Yan N. Anthocyanins and Proanthocyanidins: Chemical Structures, Food Sources, Bioactivities, and Product Development. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2029479] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Qianqian Qi
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Meijun Chu
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Xiuting Yu
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yanning Xie
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Yali Li
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yongmei Du
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Xinmin Liu
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Zhongfeng Zhang
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
| | - John Shi
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, Canada
| | - Ning Yan
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, China
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19
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Curtis PJ, Berends L, van der Velpen V, Jennings A, Haag L, Chandra P, Kay CD, Rimm EB, Cassidy A. Blueberry anthocyanin intake attenuates the postprandial cardiometabolic effect of an energy-dense food challenge: Results from a double blind, randomized controlled trial in metabolic syndrome participants. Clin Nutr 2021; 41:165-176. [PMID: 34883305 PMCID: PMC8757535 DOI: 10.1016/j.clnu.2021.11.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 11/04/2021] [Accepted: 11/24/2021] [Indexed: 12/13/2022]
Abstract
Background & aims Whilst the cardioprotective effects of blueberry intake have been shown in prospective studies and short-term randomized controlled trials (RCTs), it is unknown whether anthocyanin-rich blueberries can attenuate the postprandial, cardiometabolic dysfunction which follows energy-dense food intakes; especially in at-risk populations. We therefore examined whether adding blueberries to a high-fat/high-sugar meal affected the postprandial cardiometabolic response over 24 h. Methods A parallel, double-blind RCT (n = 45; age 63.4 ± 7.4 years; 64% male; BMI 31.4 ± 3.1 kg/m2) was conducted in participants with metabolic syndrome. After baseline assessments, an energy-dense drink (969 Kcals, 64.5 g fat, 84.5 g carbohydrate, 17.9 g protein) was consumed with either 26 g (freeze-dried) blueberries (equivalent to 1 cup/150 g fresh blueberries) or 26 g isocaloric matched placebo. Repeat blood samples (30, 60, 90, 120, 180, 360 min and 24 h), a 24 h urine collection and vascular measures (at 3, 6, and 24 h) were performed. Insulin and glucose, lipoprotein levels, endothelial function (flow mediated dilatation (FMD)), aortic and systemic arterial stiffness (pulse wave velocity (PWV), Augmentation Index (AIx) respectively), blood pressure (BP), and anthocyanin metabolism (serum and 24 h urine) were assessed. Results Blueberries favorably affected postprandial (0–24 h) concentrations of glucose (p < 0.001), insulin (p < 0.01), total cholesterol (p = 0.04), HDL-C, large HDL particles (L-HDL-P) (both p < 0.01), extra-large HDL particles (XL-HDL-P; p = 0.04) and Apo-A1 (p = 0.01), but not LDL-C, TG, or Apo-B. After a transient higher peak glucose concentration at 1 h after blueberry intake ([8.2 mmol/L, 95%CI: 7.7, 8.8] vs placebo [6.9 mmol/L, 95%CI: 6.4, 7.4]; p = 0.001), blueberries significantly attenuated 3 h glucose ([4.3 mmol/L, 95%CI: 3.8, 4.8] vs placebo [5.1 mmol/L, 95%CI: 4.6, 5.6]; p = 0.03) and insulin concentrations (blueberry: [23.4 pmol/L, 95%CI: 15.4, 31.3] vs placebo [52.9 pmol/L, 95%CI: 41.0, 64.8]; p = 0.0001). Blueberries also improved HDL-C ([1.12 mmol/L, 95%CI: 1.06, 1.19] vs placebo [1.08 mmol/L, 95%CI: 1.02, 1.14]; p = 0.04) at 90 min and XL-HDLP levels ([0.38 × 10-6, 95%CI: 0.35, 0.42] vs placebo [0.35 × 10-6, 95%CI: 0.32, 0.39]; p = 0.02) at 3 h. Likewise, significant improvements were observed 6 h after blueberries for HDL-C ([1.17 mmol/L, 95%CI: 1.11, 1.24] vs placebo [1.10 mmol/L, 95%CI: 1.03, 1.16]; p < 0.001), Apo-A1 ([1.37 mmol/L, 95%CI: 1.32, 1.41] vs placebo [1.31 mmol/L, 95%CI: 1.27, 1.35]; p = 0.003), L-HDLP ([0.70 × 10-6, 95%CI: 0.60, 0.81] vs placebo [0.59 × 10-6, 95%CI: 0.50, 0.68]; p = 0.003) and XL-HDLP ([0.44 × 10-6, 95%CI: 0.40, 0.48] vs placebo [0.40 × 10-6, 95%CI: 0.36, 0.44]; p < 0.001). Similarly, total cholesterol levels were significantly lower 24 h after blueberries ([4.9 mmol/L, 95%CI: 4.6, 5.1] vs placebo [5.0 mmol/L, 95%CI: 4.8, 5.3]; p = 0.04). Conversely, no effects were observed for FMD, PWV, AIx and BP. As anticipated, total anthocyanin-derived phenolic acid metabolite concentrations significantly increased in the 24 h after blueberry intake; especially hippuric acid (6-7-fold serum increase, 10-fold urinary increase). In exploratory analysis, a range of serum/urine metabolites were associated with favorable changes in total cholesterol, HDL-C, XL-HDLP and Apo-A1 (R = 0.43 to 0.50). Conclusions For the first time, in an at-risk population, we show that single-exposure to the equivalent of 1 cup blueberries (provided as freeze-dried powder) attenuates the deleterious postprandial effects of consuming an energy-dense high-fat/high-sugar meal over 24 h; reducing insulinaemia and glucose levels, lowering cholesterol, and improving HDL-C, fractions of HDL-P and Apo-A1. Consequently, intake of anthocyanin-rich blueberries may reduce the acute cardiometabolic burden of energy-dense meals. Clinical trial registry NCT02035592 at www.clinicaltrials.gov.
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Affiliation(s)
- Peter J Curtis
- Nutrition & Preventive Medicine Group, Norwich Medical School, University of East Anglia, Norwich, NR47UQ, UK
| | - Lindsey Berends
- Nutrition & Preventive Medicine Group, Norwich Medical School, University of East Anglia, Norwich, NR47UQ, UK
| | - Vera van der Velpen
- Nutrition & Preventive Medicine Group, Norwich Medical School, University of East Anglia, Norwich, NR47UQ, UK
| | - Amy Jennings
- Institute for Global Food Security, Queen's University Belfast, BT9 5DL, Ireland
| | - Laura Haag
- Nutrition & Preventive Medicine Group, Norwich Medical School, University of East Anglia, Norwich, NR47UQ, UK
| | - Preeti Chandra
- Food Bioprocessing & Nutrition Sciences, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, Kannapolis, NC, USA
| | - Colin D Kay
- Food Bioprocessing & Nutrition Sciences, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, Kannapolis, NC, USA
| | - Eric B Rimm
- Departments of Epidemiology & Nutrition, Harvard T.H. Chan School of Public Health, Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Aedín Cassidy
- Institute for Global Food Security, Queen's University Belfast, BT9 5DL, Ireland.
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20
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Shen Y, Zhang N, Tian J, Xin G, Liu L, Sun X, Li B. Advanced approaches for improving bioavailability and controlled release of anthocyanins. J Control Release 2021; 341:285-299. [PMID: 34822910 DOI: 10.1016/j.jconrel.2021.11.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 12/18/2022]
Abstract
Anthocyanins are a group of phytochemicals responsible for the purple or red color of plants. Additionally, they are recognized to have health promoting functions including anti-cardiovascular, anti-thrombotic, anti-diabetic, antimicrobial, neuroprotective, and visual protective effect as well as anti-cancer activities. Thus, consumption of anthocyanin supplement or anthocyanin-rich foods has been recommended to prevent the risk of development of chronic diseases. However, the low stability and bioavailability of anthocyanins limit the efficacy and distribution of anthocyanins in human body. Thus, strategies to achieve target site-local delivery with good bioavailability and controlled release rate are necessary. This review introduced and discussed the latest advanced techniques of designing lipid-based, polysaccharide-based and protein-based complexes, nano-encapsulation and exosome to overcome the limitation of anthocyanins. The improved bioavailability and controlled release of anthocyanins have great significance for gastrointestinal tract absorption, transepithelial transportation and cellular uptake. The techniques of applying different biocompatible materials and modifying the solubility of anthocyanins complex could achieve target site-local delivery with negligible degradation and good bioavailability in human body.
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Affiliation(s)
- Yixiao Shen
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110161, China
| | - Ning Zhang
- College of Horticulture Science and Technology, Hebei Normal University of Science & Technology, Hebei Key Laboratory of Horticulture Germplasm Excavation and Innovative Utilization Qinhuangdao, Hebei, China
| | - Jinlong Tian
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110161, China
| | - Guang Xin
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110161, China
| | - Ling Liu
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110161, China
| | - Xiyun Sun
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110161, China
| | - Bin Li
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110161, China.
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21
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Han T, Wu W, Li W. Transcriptome Analysis Revealed the Mechanism by Which Exogenous ABA Increases Anthocyanins in Blueberry Fruit During Veraison. FRONTIERS IN PLANT SCIENCE 2021; 12:758215. [PMID: 34858461 PMCID: PMC8632357 DOI: 10.3389/fpls.2021.758215] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/13/2021] [Indexed: 05/28/2023]
Abstract
Blueberry (Vaccinium spp.) is a popular healthy fruit worldwide. The health value of blueberry is mainly because the fruit is rich in anthocyanins, which have a strong antioxidant capacity. However, because blueberry is a non-model plant, little is known about the structural and regulatory genes involved in anthocyanin synthesis in blueberries. Previous studies have found that spraying 1,000 mg/L abscisic acid at the late green stage of "Jersey" highbush blueberry fruits can increase the content of anthocyanins. In this experiment, the previous results were verified in "Brightwell" rabbiteye blueberry fruits. Based on the previous results, the anthocyanin accumulation process in blueberry can be divided into six stages from the late green stage to the mature stage, and the transcriptome was used to systematically analyze the blueberry anthocyanin synthesis process. Combined with data from previous studies on important transcription factors regulating anthocyanin synthesis in plants, phylogenetic trees were constructed to explore the key transcription factors during blueberry fruit ripening. The results showed that ABA increased the anthocyanin content of blueberry fruits during veraison. All structural genes and transcription factors (MYB, bHLH, and WD40) involved in the anthocyanin pathway were identified, and their spatiotemporal expression patterns were analyzed. The expression of CHS, CHI, DFR, and LDOX/ANS in ABA-treated fruits was higher in the last two stages of maturity, which was consistent with the change in the anthocyanin contents in fruits. In general, six MYB transcription factors, one bHLH transcription factor and four WD40 transcription factors were found to change significantly under treatment during fruit ripening. Among them, VcMYBA plays a major role in the regulation of anthocyanin synthesis in ABA signaling. This result preliminarily explained the mechanism by which ABA increases the anthocyanin content and improves the efficiency of the industrial use of blueberry anthocyanins.
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Affiliation(s)
- Tianyu Han
- Co-Innovation Center for Sustainable Forestry in Southern China, Forestry College, Nanjing Forestry University, Nanjing, China
| | - Wenlong Wu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Weilin Li
- Co-Innovation Center for Sustainable Forestry in Southern China, Forestry College, Nanjing Forestry University, Nanjing, China
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Lim WXJ, Gammon CS, von Hurst P, Chepulis L, Page RA. A Narrative Review of Human Clinical Trials on the Impact of Phenolic-Rich Plant Extracts on Prediabetes and Its Subgroups. Nutrients 2021; 13:nu13113733. [PMID: 34835989 PMCID: PMC8624625 DOI: 10.3390/nu13113733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/17/2021] [Accepted: 10/21/2021] [Indexed: 12/12/2022] Open
Abstract
Phenolic-rich plant extracts have been demonstrated to improve glycemic control in individuals with prediabetes. However, there is increasing evidence that people with prediabetes are not a homogeneous group but exhibit different glycemic profiles leading to the existence of prediabetes subgroups. Prediabetes subgroups have been identified as: isolated impaired fasting glucose (IFG), isolated impaired glucose tolerance (IGT), and combined impaired fasting glucose and glucose intolerance (IFG/IGT). The present review investigates human clinical trials examining the hypoglycemic potential of phenolic-rich plant extracts in prediabetes and prediabetes subgroups. Artemisia princeps Pampanini, soy (Glycine max (L.) Merrill) leaf and Citrus junos Tanaka peel have been demonstrated to improve fasting glycemia and thus may be more useful for individuals with IFG with increasing hepatic insulin resistance. In contrast, white mulberry (Morus alba Linn.) leaf, persimmon (Diospyros kaki) leaf and Acacia. Mearnsii bark were shown to improve postprandial glycemia and hence may be preferably beneficial for individuals with IGT with increasing muscle insulin resistance. Elaeis guineensis leaf was observed to improve both fasting and postprandial glycemic measures depending on the dose. Current evidence remains scarce regarding the impact of the plant extracts on glycemic control in prediabetes subgroups and therefore warrants further study.
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Affiliation(s)
- Wen Xin Janice Lim
- School of Health Sciences, Massey University, Auckland 0632, New Zealand; (W.X.J.L.); (C.S.G.)
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand
| | - Cheryl S. Gammon
- School of Health Sciences, Massey University, Auckland 0632, New Zealand; (W.X.J.L.); (C.S.G.)
| | - Pamela von Hurst
- School of Sport, Exercise and Nutrition, Massey University, Auckland 0632, New Zealand;
| | - Lynne Chepulis
- Waikato Medical Research Centre, Te Huataki Waiora School of Health, University of Waikato, Hamilton 3216, New Zealand;
| | - Rachel A. Page
- School of Health Sciences, Massey University, Wellington 6021, New Zealand
- Centre for Metabolic Health Research, Massey University, Auckland 0632, New Zealand
- Correspondence: ; Tel.: +64-4-801-5799 (ext. 63462)
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Correlations between Total Antioxidant Capacity, Polyphenol and Fatty Acid Content of Native Grape Seed and Pomace of Four Different Grape Varieties in Hungary. Antioxidants (Basel) 2021; 10:antiox10071101. [PMID: 34356334 PMCID: PMC8300998 DOI: 10.3390/antiox10071101] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/05/2021] [Accepted: 07/05/2021] [Indexed: 12/16/2022] Open
Abstract
Grape pomace is a valuable source of various bioactive compounds such as plant-derived polyphenols and polyunsaturated fatty acids (PUFAs). The commercial demand of grape skin and seed powders as nutraceuticals is still growing. However, no distinction is currently made between unfermented native grape seed and grape seed pomace powders regarding their antioxidant activities. Our aim was to find the relationship between the polyphenol and fatty acid content as well as the antioxidant capacity of native and fermented grape seeds of four different grape varieties harvested in the Villány wine region. According to our results, none of the three investigated polyphenols (resveratrol, rutin, quercetin) could be detected in native grape seed samples in correlation with their significantly lower total antioxidant capacities compared to fermented seed samples. Pinot Noir (PN) grape seed pomace samples with the highest resveratrol and oil content showed significantly higher total antioxidant capacity than Cabernet Sauvignon (CS), Syrah (S) and Blue Portugal (BP) samples. Based on the statistical analysis, positive correlation was found between the fatty acid content and the resveratrol concentration in the pomace samples of different grape varieties. In contrast, rutin concentrations were negatively proportional to the fatty acid content of the fermented samples. No significant correlation was found considering the quercetin content of the samples. According to our findings, grape pomace seems a more promising source in the production of nutraceuticals, since it contains polyphenols in higher concentration and exerts significantly higher antioxidant activity than native grape seeds.
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Magdaleno-Tapia C, Quifer-Rada P, Rodríguez-Rodríguez E, Estévez-Santiago R, Waterhouse AL, Lamuela-Reventós RM, Olmedilla-Alonso B, Pérez-Jiménez J. Evaluation of the potential of total proanthocyanidin content in feces as an intake biomarker. Food Res Int 2021; 145:110390. [PMID: 34112393 DOI: 10.1016/j.foodres.2021.110390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 04/13/2021] [Accepted: 05/03/2021] [Indexed: 12/17/2022]
Abstract
Due to the health benefits associated with proanthocyanidins (PAs), it is useful to identify dietary PA biomarkers that can be determined by simple methods. Since increased levels of circulating PA metabolites are associated with increased fecal PA content, this study explores the spectrophotometric measurement of fecal PA content and its use as a biomarker of PA intake. To this end, fecal PA content was measured using an adaptation of Porter's spectrophotometric method in samples from a preclinical study and an observational study. In the former, excretion of 250-400 mg PA polymer equivalents/100 g feces was observed during supplementation and the day after, together with a significant association (p < 0.05) between PA intake and the excretion of both intact PAs and some PA metabolites, i.e., (+)-catechin, (-)-epicatechin and syringic acid. No relationship between intake and excretion was found in the observational study, either for the entire group (mean excretion of 240 ± 226 mg PA polymer equivalents/100 g feces) or after stratification into tertiles of consumption. In conclusion, the spectrophotometric determination of total PA content in feces proved to be a valid compliance marker in a preclinical study, but it was not associated with PA intake in free-living subjects. The potential of total PA excretion in observational studies, determined in fecal samples collected the day before dietary recall or in several fecal samples from the same subject, remains to be elucidated, as does a complete validation of the method proposed here.
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Affiliation(s)
- Cristina Magdaleno-Tapia
- Dpt. Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Paola Quifer-Rada
- Dpt. Endocrinology and Nutrition, CIBER of Diabetes and Associated Metabolic Diseases, Biomedical Research Institute Sant Pau, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | | | - Rocío Estévez-Santiago
- Dpt. Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain; Faculty of Experimental Sciences, Francisco de Vitoria University, Pozuelo de Alarcón, Madrid, Spain
| | | | - Rosa M Lamuela-Reventós
- Dpt. Nutrition, Food Sciences and Gastronomy, XaRTA, INSA-UB, School of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain; CIBER Physiopathology of Obesity and Nutrition (CIBER-OBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Begoña Olmedilla-Alonso
- Dpt. Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Jara Pérez-Jiménez
- Dpt. Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain; Dpt. Nutrition, Food Sciences and Gastronomy, XaRTA, INSA-UB, School of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
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25
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de Oliveira WQ, Neri-Numa IA, Arruda HS, Lopes AT, Pelissari FM, Barros FFC, Pastore GM. Special emphasis on the therapeutic potential of microparticles with antidiabetic effect: Trends and possible applications. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Pathology, Risk Factors, and Oxidative Damage Related to Type 2 Diabetes-Mediated Alzheimer's Disease and the Rescuing Effects of the Potent Antioxidant Anthocyanin. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:4051207. [PMID: 33728019 PMCID: PMC7936905 DOI: 10.1155/2021/4051207] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 01/27/2021] [Accepted: 02/18/2021] [Indexed: 02/07/2023]
Abstract
The pathology and neurodegeneration in type 2 diabetes- (T2D-) mediated Alzheimer's disease (AD) have been reported in several studies. Despite the lack of information regarding the basic underlying mechanisms involved in the development of T2D-mediated AD, some common features of the two conditions have been reported, such as brain atrophy, reduced cerebral glucose metabolism, and insulin resistance. T2D phenotypes such as glucose dyshomeostasis, insulin resistance, impaired insulin signaling, and systemic inflammatory cytokines have been shown to be involved in the progression of AD pathology by increasing amyloid-beta accumulation, tau hyperphosphorylation, and overall neuroinflammation. Similarly, oxidative stress, mitochondrial dysfunction, and the generation of advanced glycation end products (AGEs) and their receptor (RAGE) as a result of chronic hyperglycemia may serve as critical links between diabetes and AD. The natural dietary polyflavonoid anthocyanin enhances insulin sensitivity, attenuates insulin resistance at the level of the target tissues, inhibits free fatty acid oxidation, and abrogates the release of peripheral inflammatory cytokines in obese (prediabetic) individuals, which are responsible for insulin resistance, systemic hyperglycemia, systemic inflammation, brain metabolism dyshomeostasis, amyloid-beta accumulation, and neuroinflammatory responses. In this review, we have shown that obesity may induce T2D-mediated AD and assessed the recent therapeutic advances, especially the use of anthocyanin, against T2D-mediated AD pathology. Taken together, the findings of current studies may help elucidate a new approach for the prevention and treatment of T2D-mediated AD by using the polyflavonoid anthocyanin.
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Oliveira G, Radovanovic N, Nunes MCDN, Fristedt R, Alminger M, Andlid T. Extracts of Digested Berries Increase the Survival of Saccharomyces cerevisiae during H 2O 2 Induced Oxidative Stress. Molecules 2021; 26:molecules26041057. [PMID: 33670455 PMCID: PMC7922075 DOI: 10.3390/molecules26041057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/07/2021] [Accepted: 02/12/2021] [Indexed: 12/31/2022] Open
Abstract
Many studies suggest anthocyanins may prevent the development of several diseases. However, anthocyanin bioactivity against cellular stress is not fully understood. This study aimed to evaluate the protective effect of berry anthocyanins on stressed cells using Saccharomyces cerevisiae. The impact of in vitro gastrointestinal digestion on anthocyanin profiles was also assessed. Bilberry and blackcurrant had higher anthocyanin levels than raspberry and strawberry, but digestion reduced the detected anthocyanins by approximately 90%. Yeast cells with and without digested or nondigested anthocyanin extracts were exposed to H2O2 and examined for survival. In the presence of anthocyanins, particularly from digested strawberry, a significant increase in cell survival was observed, suggesting that the type and levels of anthocyanins are important factors, but they also need to undergo gastrointestinal (GI) structural modifications to induce cell defence. Results also showed that cells need to be exposed to anthocyanins before the stress was applied, suggesting induction of a cellular defence system by anthocyanins or their derivatives rather than by a direct antioxidative effect on H2O2. Overall, data showed that exposure of severely stressed yeast cells to digested berry extracts improved cell survival. The findings also showed the importance of considering gastrointestinal digestion when evaluating anthocyanins’ biological activity.
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Affiliation(s)
- Gabriel Oliveira
- Department of Biology and Biological Engineering, Food and Nutrition Science, Chalmers University of Technology, Kemivägen 10, SE-412 96 Gothenburg, Sweden; (G.O.); (N.R.); (R.F.); (M.A.)
| | - Nataša Radovanovic
- Department of Biology and Biological Engineering, Food and Nutrition Science, Chalmers University of Technology, Kemivägen 10, SE-412 96 Gothenburg, Sweden; (G.O.); (N.R.); (R.F.); (M.A.)
| | - Maria Cecilia do Nascimento Nunes
- Food Quality Laboratory, Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA;
| | - Rikard Fristedt
- Department of Biology and Biological Engineering, Food and Nutrition Science, Chalmers University of Technology, Kemivägen 10, SE-412 96 Gothenburg, Sweden; (G.O.); (N.R.); (R.F.); (M.A.)
| | - Marie Alminger
- Department of Biology and Biological Engineering, Food and Nutrition Science, Chalmers University of Technology, Kemivägen 10, SE-412 96 Gothenburg, Sweden; (G.O.); (N.R.); (R.F.); (M.A.)
| | - Thomas Andlid
- Department of Biology and Biological Engineering, Food and Nutrition Science, Chalmers University of Technology, Kemivägen 10, SE-412 96 Gothenburg, Sweden; (G.O.); (N.R.); (R.F.); (M.A.)
- Correspondence:
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Sarkar D, Christopher A, Shetty K. Phenolic Bioactives From Plant-Based Foods for Glycemic Control. Front Endocrinol (Lausanne) 2021; 12:727503. [PMID: 35116002 PMCID: PMC8805174 DOI: 10.3389/fendo.2021.727503] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 12/21/2021] [Indexed: 12/19/2022] Open
Abstract
Plant-based foods containing phenolic bioactives have human health protective functions relevant for combating diet and lifestyle-influenced chronic diseases, including type 2 diabetes (T2D). The molecular structural features of dietary phenolic bioactives allow antioxidant functions relevant for countering chronic oxidative stress-induced metabolic breakdown commonly associated with T2D. In addition to antioxidant properties, phenolic bioactives of diverse plant foods have therapeutic functional activities such as improving insulin sensitivity, reducing hepatic glucose output, inhibiting activity of key carbohydrate digestive enzymes, and modulating absorption of glucose in the bloodstream, thereby subsequently improving post-prandial glycemic control. These therapeutic functional properties have direct implications and benefits in the dietary management of T2D. Therefore, plant-based foods that are rich in phenolic bioactives are excellent dietary sources of therapeutic targets to improve overall glycemic control by managing chronic hyperglycemia and chronic oxidative stress, which are major contributing factors to T2D pathogenesis. However, in studies with diverse array of plant-based foods, concentration and composition of phenolic bioactives and their glycemic control relevant bioactivity can vary widely between different plant species, plant parts, and among different varieties/genotypes due to the different environmental and growing conditions, post-harvest storage, and food processing steps. This has allowed advances in innovative strategies to screen and optimize whole and processed plant derived foods and their ingredients based on their phenolic bioactive linked antioxidant and anti-hyperglycemic properties for their effective integration into T2D focused dietary solutions. In this review, different pre-harvest and post-harvest strategies and factors that influence phenolic bioactive-linked antioxidant and anti-hyperglycemic properties in diverse plant derived foods and derivation of extracts with therapeutic potential are highlighted and discussed. Additionally, novel bioprocessing strategies to enhance bioavailability and bioactivity of phenolics in plant-derived foods targeting optimum glycemic control and associated T2D therapeutic benefits are also advanced.
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Blackcurrant ( Ribes nigrum) lowers sugar-induced postprandial glycaemia independently and in a product with fermented quinoa: a randomised crossover trial. Br J Nutr 2020; 126:708-717. [PMID: 33161904 PMCID: PMC8340457 DOI: 10.1017/s0007114520004468] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Berries rich in anthocyanins have beneficial effects on postprandial glycaemia. We investigated whether blackcurrant (75 g in a portion) independently and in a product with fermented quinoa induced similar effects on the sugar-induced postprandial glucose metabolism as observed before with 150 g of blackcurrant. Twenty-six healthy subjects (twenty-two females and four males) consumed four test products after fasting overnight in a randomised, controlled crossover design. Each test product portion contained 31 g of available carbohydrates and had similar composition of sugar components: 300 ml water with sucrose, glucose and fructose (SW; reference), blackcurrant purée with added sugars (BC), a product consisting of the blackcurrant purée and a product base with fermented quinoa (BCP) and the product base without blackcurrant (PB). Blood samples were collected at 0, 15, 30, 45, 60, 90, 120 and 180 min after eating each test product to analyse the concentrations of glucose, insulin and NEFA. In comparison with the SW, the intake of both the BC and BCP resulted in reduced glucose and insulin concentrations during the first 30 min, a more balanced decline during the first hour and improved glycaemic profile. The BCP induced more efficient effects than the BC due to the product base with fermented quinoa. A rebound of NEFA after the sugar-induced hypoglycaemic response was attenuated at the late postprandial phase by the BC and BCP. In conclusion, we showed that 75 g of blackcurrant and the product with fermented quinoa were able to lower postprandial glycaemia and insulinaemia.
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Drewnowski A, Burton-Freeman B. A new category-specific nutrient rich food (NRF9f.3) score adds flavonoids to assess nutrient density of fruit. Food Funct 2020; 11:123-130. [PMID: 31938797 DOI: 10.1039/c9fo02344e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nutrient profiling (NP) models, intended to capture the full nutritional value of plant-based foods, ought to incorporate bioactive phytochemicals, including flavonoids, in addition to standard nutrients. The well-established Nutrient Rich Food (NRF9.3) score is based on 9 nutrients to encourage (protein, fiber, vitamins A, C, D and calcium, iron, potassium, magnesium) and 3 nutrients to limit (saturated fat, added sugar, sodium). The new category-specific NRF9f.3 score kept the same algorithm based on sums of percent daily values (%DVs) but swapped vitamin D for total flavonoids from the USDA database. NRF9f.3 was applied to the USDA fruit group categories, comparing nutrient density of citrus fruit, citrus juice, dried fruit, raw and cooked fruit, berries, fruit mixtures, fruit salads, non-citrus fruit juice, and fruit nectars. Adding total flavonoids to NRF9f.3 allowed for a recalibration of fruit total nutritional value. Citrus fruits and juices had significantly higher flavanones, berries had significantly higher anthocyanidins, and dried fruit and berries had significantly higher flavan-3-ols, than other fruits (all p < 0.05). Citrus fruit, citrus juice and berries had significantly higher NRFf9.3 scores than all other fruit subcategories (p < 0,05), but were not different from each other. The more innovative NP models are both category specific and make effective use of new nutrient composition databases. NRF9.3 when applied to the fruit group discriminates primarily on fiber, vitamin C, and added sugar content. Incorporating flavonoid and polyphenol data modernizes NP models to better capture nutrient density of plant foods that can aid in dietary guidance and policy development to improve diversity and nutritional value of the diet.
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Affiliation(s)
- Adam Drewnowski
- Center for Public Health Nutrition, University of Washington, Seattle, Washington, USA.
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31
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Flavonoids and Mitochondria: Activation of Cytoprotective Pathways? Molecules 2020; 25:molecules25133060. [PMID: 32635481 PMCID: PMC7412508 DOI: 10.3390/molecules25133060] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 02/07/2023] Open
Abstract
A large number of diverse mechanisms that lead to cytoprotection have been described to date. Perhaps, not surprisingly, the role of mitochondria in these phenomena is notable. In addition to being metabolic centers, due to their role in cell catabolism, ATP synthesis, and biosynthesis these organelles are triggers and/or end-effectors of a large number of signaling pathways. Their role in the regulation of the intrinsic apoptotic pathway, calcium homeostasis, and reactive oxygen species signaling is well documented. In this review, we aim to characterize the prospects of influencing cytoprotective mitochondrial signaling routes by natural substances of plant origin, namely, flavonoids (e.g., flavanones, flavones, flavonols, flavan-3-ols, anthocyanidins, and isoflavones). Flavonoids are a family of widely distributed plant secondary metabolites known for their beneficial effects on human health and are widely applied in traditional medicine. Their pharmacological characteristics include antioxidative, anticarcinogenic, anti-inflammatory, antibacterial, and antidiabetic properties. Here, we focus on presenting mitochondria-mediated cytoprotection against various insults. Thus, the role of flavonoids as antioxidants and modulators of antioxidant cellular response, apoptosis, mitochondrial biogenesis, autophagy, and fission and fusion is reported. Finally, an emerging field of flavonoid-mediated changes in the activity of mitochondrial ion channels and their role in cytoprotection is outlined.
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32
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Lucchinetti E, Lou PH, Wawrzyniak P, Wawrzyniak M, Scharl M, Holtzhauer GA, Krämer SD, Hersberger M, Rogler G, Zaugg M. Novel Strategies to Prevent Total Parenteral Nutrition-Induced Gut and Liver Inflammation, and Adverse Metabolic Outcomes. Mol Nutr Food Res 2020; 65:e1901270. [PMID: 32359213 DOI: 10.1002/mnfr.201901270] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 04/09/2020] [Indexed: 12/15/2022]
Abstract
Total parenteral nutrition (TPN) is a life-saving therapy administered to millions of patients. However, it is associated with significant adverse effects, namely liver injury, risk of infections, and metabolic derangements. In this review, the underlying causes of TPN-associated adverse effects, specifically gut atrophy, dysbiosis of the intestinal microbiome, leakage of the epithelial barrier with bacterial invasion, and inflammation are first described. The role of the bile acid receptors farnesoid X receptor and Takeda G protein-coupled receptor, of pleiotropic hormones, and growth factors is highlighted, and the mechanisms of insulin resistance, namely the lack of insulinotropic and insulinomimetic signaling of gut-originating incretins as well as the potentially toxicity of phytosterols and pro-inflammatory fatty acids mainly released from soybean oil-based lipid emulsions, are discussed. Finally, novel approaches in the design of next generation lipid delivery systems are proposed. Propositions include modifying the physicochemical properties of lipid emulsions, the use of lipid emulsions generated from sustainable oils with favorable ratios of anti-inflammatory n-3 to pro-inflammatory n-6 fatty acids, beneficial adjuncts to TPN, and concomitant pharmacotherapies to mitigate TPN-associated adverse effects.
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Affiliation(s)
- Eliana Lucchinetti
- Department of Anesthesiology and Pain Medicine and Cardiovascular Research Centre, University of Alberta, Edmonton, T6G 2R3, Canada
| | - Phing-How Lou
- Department of Pharmacology, University of Alberta, Edmonton, T6G 2R3, Canada
| | - Paulina Wawrzyniak
- Division of Clinical Chemistry and Biochemistry, Children's Hospital Zurich, Zurich, 8032, Switzerland
| | - Marcin Wawrzyniak
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, 8091, Switzerland
| | - Michael Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, 8091, Switzerland
| | - Gregory A Holtzhauer
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Stefanie D Krämer
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Martin Hersberger
- Division of Clinical Chemistry and Biochemistry, Children's Hospital Zurich, Zurich, 8032, Switzerland
| | - Gerhard Rogler
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, 8091, Switzerland
| | - Michael Zaugg
- Department of Anesthesiology and Pain Medicine and Cardiovascular Research Centre, University of Alberta, Edmonton, T6G 2R3, Canada.,Department of Pharmacology, University of Alberta, Edmonton, T6G 2R3, Canada
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Ahmed A, Lager A, Fredlund P, Elinder LS. Consumption of fruit and vegetables and the risk of type 2 diabetes: a 4-year longitudinal study among Swedish adults. J Nutr Sci 2020; 9:e14. [PMID: 32284862 PMCID: PMC7132554 DOI: 10.1017/jns.2020.7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 12/14/2022] Open
Abstract
A low intake of fruit and vegetables is a significant contributor to the global burden of disease. The aim of this study was to estimate the size of the risk of type 2 diabetes (T2D) of a low intake and to investigate possible sex differences. In this regard, this study used a longitudinal data from the Stockholm Public Health Cohort located in Sweden, collected in 2010 and 2014. The analysis included 14 718 men and 20 589 women aged 25 to 84 years. Fruit and vegetable intake, separately <2 servings/d or combined <4 servings/d (one serving corresponding to 100 g) was set as a cut-point for low intake. The sex difference at baseline was examined. Sex-stratified logistic regression was performed with onset of T2D as the outcome and fruit and vegetable intake at baseline as the exposure with adjustment for other known risk factors. Results indicate that men consumed significantly (P < 0⋅001) less fruit and vegetables compared with women. A 62 % higher risk to develop T2D over the 4-year period was observed in men who had low vegetable intake compared with high intake after adjusting for age, education, BMI, smoking, alcohol and physical activity (OR 1⋅62; 95 % CI 1⋅00, 2⋅63). In women, a significantly higher risk of T2D was also observed with a low intake of vegetables, but not after adjustment. The present study suggests that higher consumption of vegetables seems to be protective for the onset of T2D in men. Thus, increasing the intake of vegetables in men should be a public health priority.
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Affiliation(s)
- Arif Ahmed
- Department of Public Health Sciences, Stockholm University, Stockholm, Sweden
- Department of Demography, Stockholm University, Stockholm, Sweden
| | - Anton Lager
- Centre for Epidemiology and Community Medicine, Stockholm Region, Stockholm, Sweden
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Peeter Fredlund
- Centre for Epidemiology and Community Medicine, Stockholm Region, Stockholm, Sweden
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Liselotte Schäfer Elinder
- Centre for Epidemiology and Community Medicine, Stockholm Region, Stockholm, Sweden
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
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Zhao Q, Zhang H, Zhao H, Liu J, Liu J, Chen Z, Li B, Liao X, Regenstein JM, Wang J, Yang X. Strategy of Fusion Covalent Organic Frameworks and Molecularly Imprinted Polymers: A Surprising Effect in Recognition and Loading of Cyanidin-3- O-glucoside. ACS APPLIED MATERIALS & INTERFACES 2020; 12:8751-8760. [PMID: 31990520 DOI: 10.1021/acsami.9b21460] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Seven magnetic covalent organic framework molecularly imprinted polymers with magnetic responsiveness, large specific surface area, and molecular recognition ability were successfully synthesized, suitable for the separation of cyanidin-3-O-glucoside from complex samples. Using a room-temperature synthesis strategy, covalent organic frameworks accompanied by imprinted sites were formed in one step on the functionalized magnetic nanoparticles with 1,6-hexanediamine. The composite materials were easy to prepare and showed high adsorption capacity (127 mg g-1) together with favorable adsorption selectivity for cyanidin-3-O-glucoside over other flavonoids and phenolic acids. Magnetic covalent organic framework molecularly imprinted polymers exhibited good stability in 10 adsorption-desorption cycles. This work established a new method of extracting and separating high-purity anthocyanins and even unstable natural compounds.
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Affiliation(s)
- Qianyu Zhao
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , 92 West Dazhi Street , Nangang District, Harbin , Heilongjiang 150001 , People's Republic of China
| | - Hua Zhang
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , 92 West Dazhi Street , Nangang District, Harbin , Heilongjiang 150001 , People's Republic of China
| | - Haitian Zhao
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , 92 West Dazhi Street , Nangang District, Harbin , Heilongjiang 150001 , People's Republic of China
| | - Jia Liu
- Internal Trade Food Science and Technology Company, Limited , Beijing 102209 , People's Republic of China
| | - Jingyi Liu
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , 92 West Dazhi Street , Nangang District, Harbin , Heilongjiang 150001 , People's Republic of China
| | - Zilong Chen
- School of Pharmacy , Jiangxi University of Traditional Chinese Medicine , Nanchang , Jiangxi 330004 , People's Republic of China
| | - Bin Li
- School of Pharmacy , Jiangxi University of Traditional Chinese Medicine , Nanchang , Jiangxi 330004 , People's Republic of China
| | - Xiaojun Liao
- National Engineering Research Center for Fruit and Vegetable Processing, College of Food Science and Nutritional Engineering , China Agricultural University , Beijing 100083 , People's Republic of China
| | - Joe Mac Regenstein
- Department of Food Science , Cornell University , Ithaca , New York 14850-7201 , United States
| | - Jing Wang
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Product , Chinese Academy of Agricultural Sciences , 12 Zhongguancun South Street , Haidian District, Beijing 100081 , People's Republic of China
| | - Xin Yang
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , 92 West Dazhi Street , Nangang District, Harbin , Heilongjiang 150001 , People's Republic of China
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Dhir A. Natural polyphenols in preclinical models of epilepsy. Phytother Res 2020; 34:1268-1281. [DOI: 10.1002/ptr.6617] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 12/11/2019] [Accepted: 01/07/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Ashish Dhir
- Department of Neurology, School of MedicineUniversity of California, Davis Sacramento California
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Caro-Ordieres T, Marín-Royo G, Opazo-Ríos L, Jiménez-Castilla L, Moreno JA, Gómez-Guerrero C, Egido J. The Coming Age of Flavonoids in the Treatment of Diabetic Complications. J Clin Med 2020; 9:jcm9020346. [PMID: 32012726 PMCID: PMC7074336 DOI: 10.3390/jcm9020346] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/16/2020] [Accepted: 01/22/2020] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus (DM), and its micro and macrovascular complications, is one of the biggest challenges for world public health. Despite overall improvement in prevention, diagnosis and treatment, its incidence is expected to continue increasing over the next years. Nowadays, finding therapies to prevent or retard the progression of diabetic complications remains an unmet need due to the complexity of mechanisms involved, which include inflammation, oxidative stress and angiogenesis, among others. Flavonoids are natural antioxidant compounds that have been shown to possess anti-diabetic properties. Moreover, increasing scientific evidence has demonstrated their potential anti-inflammatory and anti-oxidant effects. Consequently, the use of these compounds as anti-diabetic drugs has generated growing interest, as is reflected in the numerous in vitro and in vivo studies related to this field. Therefore, the aim of this review is to assess the recent pre-clinical and clinical research about the potential effect of flavonoids in the amelioration of diabetic complications. In brief, we provide updated information concerning the discrepancy between the numerous experimental studies supporting the efficacy of flavonoids on diabetic complications and the lack of appropriate and well-designed clinical trials. Due to the well-described beneficial effects on different mechanisms involved in diabetic complications, the excellent tolerability and low cost, future randomized controlled studies with compounds that have adequate bioavailability should be evaluated as add-on therapy on well-established anti-diabetic drugs.
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Affiliation(s)
- Teresa Caro-Ordieres
- Research Discovery and Innovation Department, FAES FARMA, S.A, Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country, 48940 Leioa (Bizkaia), Spain;
| | - Gema Marín-Royo
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autonoma de Madrid, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain; (G.M.-R.); (L.O.-R.); (L.J.-C.); (C.G.-G.)
| | - Lucas Opazo-Ríos
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autonoma de Madrid, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain; (G.M.-R.); (L.O.-R.); (L.J.-C.); (C.G.-G.)
| | - Luna Jiménez-Castilla
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autonoma de Madrid, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain; (G.M.-R.); (L.O.-R.); (L.J.-C.); (C.G.-G.)
| | - Juan Antonio Moreno
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, 14004 Córdoba, Spain;
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Córdoba, 14004 Córdoba, Spain
- Hospital Universitario Reina Sofía, 14004 Córdoba, Spain
| | - Carmen Gómez-Guerrero
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autonoma de Madrid, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain; (G.M.-R.); (L.O.-R.); (L.J.-C.); (C.G.-G.)
| | - Jesús Egido
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autonoma de Madrid, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain; (G.M.-R.); (L.O.-R.); (L.J.-C.); (C.G.-G.)
- Correspondence:
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Associations between Dietary Polyphenols and Type 2 Diabetes in a Cross-Sectional Analysis of the PREDIMED-Plus Trial: Role of Body Mass Index and Sex. Antioxidants (Basel) 2019; 8:antiox8110537. [PMID: 31717390 PMCID: PMC6912253 DOI: 10.3390/antiox8110537] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 10/30/2019] [Indexed: 02/08/2023] Open
Abstract
Overweight and obesity are important risk factors for type 2 diabetes (T2D). Moving towards healthier diets, namely, diets rich in bioactive compounds, could decrease the odds of suffering T2D. However, those individuals with high body mass index (BMI) may have altered absorption or metabolism of some nutrients and dietary components, including polyphenols. Therefore, we aimed to assess whether high intakes of some classes of polyphenols are associated with T2D in a population with metabolic syndrome and how these associations depend on BMI and sex. This baseline cross-sectional analysis includes 6633 participants from the PREDIMED-Plus trial. Polyphenol intakes were calculated from food frequency questionnaires (FFQ). Cox regression models with constant time at risk and robust variance estimators were used to estimate the prevalence ratios (PRs) for polyphenol intake and T2D prevalence using the lowest quartile as the reference group. Analyses were stratified by sex and BMI groups (overweight and obese) to evaluate potential effect modification. Catechins, proanthocyanidins, hydroxybenzoic acids, and lignans were inversely associated with T2D. Hydroxycinnamic acids were directly related in men. These associations were different depending on sex and BMI, that is, women and overweight obtained stronger inverse associations.
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