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Silveira BKS, Silva AD, Rocha DMUP, Waskow K, Martino HSD, Bressan J, Hermsdorff HHM. Brazil Nut (Bertholletia excelsa H.B.K.) Consumption in Energy-Restricted Intervention Decreases Proinflammatory Markers and Intestinal Permeability of Women with Overweight/Obesity: A Controlled Trial (Brazilian Nuts Study). J Nutr 2024; 154:2670-2679. [PMID: 39025334 DOI: 10.1016/j.tjnut.2024.07.016] [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: 02/16/2024] [Revised: 06/20/2024] [Accepted: 07/11/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND Obesity is associated with low-grade inflammation and increased intestinal permeability (IP). The Brazil nut (BN) (Bertholletia excelsa H.B.K.) appears to be a promising dietary intervention to control inflammation by enhancing antioxidant defenses. OBJECTIVES We aimed to assess the effect of daily BN consumption on inflammatory biomarkers and IP in the context of an energy-restricted intervention. Furthermore, we evaluated the correlation between the changes in these inflammatory markers and the changes in serum selenium and IP. METHODS In this 8-wk nonrandomized controlled trial, 56 women with overweight or obesity were allocated into 2 groups, both following an energy-restricted diet (-500 kcal/d). The control group (CO) consumed a nut-free diet, while the BN group consumed 8 g BN/d, providing 347.2 μg selenium (Se). Inflammatory cytokines were analyzed in plasma and Se in serum. IP was assessed using the lactulose/mannitol test (LM ratio). RESULTS Forty-six women completed the intervention. Both groups achieved similar energy restriction (CO Δ= -253.7 ± 169.4 kcal/d; BN Δ= -265.8 ± 141.8 kcal/d) and weight loss (CO Δ= -2.5 ± 0.5 kg; BN Δ= -3.5 ± 0.5 kg). The BN group showed lower values of C-reactive protein, tumor necrosis factor, interleukin (IL)1-β, IL-8, percentage lactulose excretion, and LM ratio than the CO group. Additionally, changes in serum Se concentration were predictive of changes in IL-8 concentration (β: -0.054; adjusted R2: 0.100; 95% confidence interval [CI]: -0.100; -0.007; P = 0.025), and changes in IL-8 were predictive of changes in the LM ratio (β: 0.006; adjusted R2: 0.101; 95% CI: 0.001, 0.011; P = 0.024). CONCLUSIONS Regular intake of BNs can be a promising complementary dietary strategy for controlling low-grade inflammation and improving IP in women with overweight/obesity undergoing energy-restricted treatment. However, the effects of BNs seem to be Se status-dependent. This trial was registered at the Brazilian Registry of Clinical Trials (ReBEC: https://ensaiosclinicos.gov.br/rg/RBR-3ntxrm/.
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Affiliation(s)
- Brenda Kelly Souza Silveira
- Laboratory of Energy Metabolism and Body Composition, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Alessandra da Silva
- Laboratory of Energy Metabolism and Body Composition, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Daniela Mayumi Usuda Prado Rocha
- Laboratory of Energy Metabolism and Body Composition, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil; Laboratory of Clinical Analysis and Genomics, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Karina Waskow
- Laboratory of Energy Metabolism and Body Composition, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Hércia Stampini Duarte Martino
- Laboratory of Experimental Nutrition, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Josefina Bressan
- Laboratory of Energy Metabolism and Body Composition, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil; Laboratory of Clinical Analysis and Genomics, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Helen Hermana Miranda Hermsdorff
- Laboratory of Energy Metabolism and Body Composition, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil; Laboratory of Clinical Analysis and Genomics, Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Brazil.
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de Souza LVM, Dos Santos KS, Barcellos TDMA, Alvares TDS. The effect of flour-based foods intake in the reduction of cardiometabolic risk: A systematic review. Crit Rev Food Sci Nutr 2024; 64:9400-9411. [PMID: 37222569 DOI: 10.1080/10408398.2023.2212758] [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] [Indexed: 05/25/2023]
Abstract
Cardiometabolic risk triggers a state of chronic and subclinical inflammation, conferring a higher risk of morbidity and mortality. Thus, minimal processing of foods with high nutritional value, in the form of flour, becomes an effective dietary strategy in preventing and treating cardiometabolic risk factors. This systematic review aims to evaluate the evidence on the effect of flour-based food intake on reducing the most common cardiometabolic risk factors. We included all randomized controlled trials published up to April 2023 in the main databases PubMed, Scopus and Web of Science. Eleven clinical trials were included. The amount of flour used in the studies ranged from 1.5 g to 36 g/day, and the supplementation period ranged from six weeks to 120 days. Green jackfruit flour, green banana flour, soy flour, flour from rind of the yellow passion fruit, and fenugreek powder demonstrated significant results in improve parameters of glucose homeostasis. Chia flour, green banana flour, soy flour, and fenugreek powder showed improvements in blood pressure measurements. Brazil nut flour and chia flour reduced total cholesterol. Chia flour also increased HDL cholesterol levels. The evidence presented in the current systematic review indicates that flour-derived foods intake is related to improve cardiometabolic risk factors parameters.
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Affiliation(s)
- Leonardo Victor Miranda de Souza
- Nutrition and Exercise Metabolism Research Group, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
- Multicenter Postgraduate Program in Physiological Sciences, Federal University of Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
| | - Karen Souza Dos Santos
- Nutrition and Exercise Metabolism Research Group, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
- Postgraduate Program in Bioactive Products and Biosciences, Federal University of Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
| | - Tatiana de Muros Amaral Barcellos
- Nutrition and Exercise Metabolism Research Group, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
- Postgraduate Program in Bioactive Products and Biosciences, Federal University of Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
| | - Thiago da Silveira Alvares
- Nutrition and Exercise Metabolism Research Group, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
- Food and Nutrition Institute, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
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Olas B. The Cardioprotective Properties of Selected Nuts: Their Functional Ingredients and Molecular Mechanisms. Foods 2024; 13:242. [PMID: 38254543 PMCID: PMC10814286 DOI: 10.3390/foods13020242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/03/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Nuts have been known as a nutritious food since ancient times and can be considered part of our original diet: they are one of the few foods that have been eaten in the same form for thousands of years. They consist of various dry fruits and seeds, with the most common species being almonds (Prunus dulcis), hazelnuts (Corylus avellana), cashews (cashew nuts, Anacardium occidentale), pistachios (Pistacia vera), walnuts (Italian nuts, Juglans regia), peanuts (Arachia hypogaca), Brazil nuts (Bartholletia excels), pecans (Corya illinoinensis), macadamia nuts (Macademia ternifolia) and pine nuts. Both in vitro and in vivo studies have found nuts to possess a range of bioactive compounds with cardioprotective properties, and hence, their consumption may play a role in preventing and treating cardiovascular diseases (CVDs). The present work reviews the current state of knowledge regarding the functional ingredients of various nuts (almonds, Brazil nuts, cashew nuts, hazelnuts, macadamia nuts, peanuts, pecan nuts, pine nuts, pistachios, and walnuts) and the molecular mechanisms of their cardioprotective action. The data indicate that almonds, walnuts and pistachios are the best nut sources of bioactive ingredients with cardioprotective properties.
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Affiliation(s)
- Beata Olas
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/3, 90-236 Lodz, Poland
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Apolinário LF, Silva AT, Rosa AP, Oliveira CDS, Lira C, Guerra JPCDS, Friedrich JF, Rosa LQ, Chelegão R, Botelho SDCC, Sinhorin VDG, de Oliveira JC, Velloso NA. Supplementation of the maternal diet with Brazil nut ( Bertholletia excelsa H.B.K.) prevents cognitive impairment in the offspring of obese mothers. J Dev Orig Health Dis 2023; 14:795-804. [PMID: 38345286 DOI: 10.1017/s2040174424000023] [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] [Indexed: 04/04/2024]
Abstract
Maternal obesity may trigger long-term neurodevelopmental disorders in offspring. Considering the benefits of the Brazil nut (Bertholletia excelsa H.B.K.), a rich source of nutrients such as selenium, this study aimed to evaluate its effect on the behavior of obese rat offspring and its relationship with oxidative stress. From 60 days of age until weaning, female Wistar rats were fed a high-fat diet (mHF) or an HF diet supplemented with 5% Brazil nut (mHF/BN), while control mothers (mCTL) were fed a standard diet or a standard diet supplemented with 5% Brazil nut (mBN). Male pups received a standard diet throughout life and, at 30 and 90 days old, were subjected to behavioral tasks to evaluate anxiety and cognition. Biochemical evaluations were performed at 90 days of age. No alterations were observed in the anxiety behavior of the offspring. However, the offspring of the mHF group (oHF) exhibited impaired short-term memory at 30 and 90 days of age and impaired long-term memory at 30 days. Short-term memory impairment was prevented by Brazil nuts in young rats (30 days). While the serum selenium concentration was reduced in the oHF group, the serum catalase concentration was reduced in all groups, without changes in lipid peroxidation or protein carbonylation. Brazil nut maternal diet supplementation prevented short- and long-term cognitive impairment in the offspring, which may be related to the selenium levels.
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Affiliation(s)
- Lilian Fioravanso Apolinário
- Programa de Pós-Graduação em Ciências em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
- Núcleo de Pesquisa e Apoio Didático em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
| | - Amanda Tais Silva
- Núcleo de Pesquisa e Apoio Didático em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
| | - Andrielli Pompermayer Rosa
- Laboratórios Integrados de Pesquisas Químicas, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
| | - Cleber da Silva Oliveira
- Núcleo de Pesquisa e Apoio Didático em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
| | - Cleberson Lira
- Núcleo de Pesquisa e Apoio Didático em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
| | | | - Júlia Furtado Friedrich
- Núcleo de Pesquisa e Apoio Didático em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
| | - Letícia Queiroz Rosa
- Núcleo de Pesquisa e Apoio Didático em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
| | | | | | | | - Júlio Cezar de Oliveira
- Programa de Pós-Graduação em Ciências em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
- Grupo de Pesquisa Programação Perinatal de Doenças Metabólicas, conceito DOHaD, Laboratório de Doenças Metabólicas e Cardiovasculares, Núcleo de Pesquisa e Apoio Didático em Saúde, Sinop, MT, Brazil
| | - Nádia Aléssio Velloso
- Programa de Pós-Graduação em Ciências em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
- Núcleo de Pesquisa e Apoio Didático em Saúde, Universidade Federal de Mato Grosso (UFMT), Sinop, MT, Brazil
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Houston L, Probst YC, Chandra Singh M, Neale EP. Tree Nut and Peanut Consumption and Risk of Cardiovascular Disease: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Adv Nutr 2023; 14:1029-1049. [PMID: 37149262 PMCID: PMC10509427 DOI: 10.1016/j.advnut.2023.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 04/27/2023] [Accepted: 05/03/2023] [Indexed: 05/08/2023] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of death globally. Habitual consumption of tree nuts and peanuts is associated with cardioprotective benefits. Food-based dietary guidelines globally recommend nuts as a key component of a healthy diet. This systematic review and meta-analysis were conducted to examine the relationship between tree nut and peanut consumption and risk factors for CVD in randomized controlled trials (RCTs) (PROSPERO: CRD42022309156). MEDLINE, PubMed, CINAHL, and Cochrane Central databases were searched up to 26 September, 2021. All RCT studies that assessed the effects of tree nut or peanut consumption of any dose on CVD risk factors were included. Review Manager software was used to conduct a random effect meta-analysis for CVD outcomes from RCTs. Forest plots were generated for each outcome, between-study heterogeneity was estimated using the I2 test statistic and funnel plots and Egger's test for outcomes with ≥10 strata. The quality assessment used the Health Canada Quality Appraisal Tool, and the certainty of the evidence was assessed using grading of recommendations assessment, development, and evaluation (GRADE). A total of 153 articles describing 139 studies (81 parallel design and 58 cross-over design) were included in the systematic review, with 129 studies in the meta-analysis. The meta-analysis showed a significant decrease for low-density lipoprotein (LDL) cholesterol, total cholesterol (TC), triglycerides (TG), TC:high-density lipoprotein (HDL) cholesterol, LDL cholesterol:HDL cholesterol, and apolipoprotein B (apoB) following nut consumption. However, the quality of evidence was "low" for only 18 intervention studies. The certainty of the body of evidence for TC:HDL cholesterol, LDL cholesterol:HDL cholesterol, and apoB were "moderate" because of inconsistency, for TG were "low," and for LDL cholesterol and TC were "very low" because of inconsistency and the likelihood of publication bias. The findings of this review provide evidence of a combined effect of tree nuts and peanuts on a range of biomarkers to create an overall CVD risk reduction.
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Affiliation(s)
- Lauren Houston
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia; School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia; School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia.
| | - Yasmine C Probst
- School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia; Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, New South Wales, Australia
| | - Mamatha Chandra Singh
- School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia; Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, New South Wales, Australia
| | - Elizabeth P Neale
- School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia; Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, New South Wales, Australia
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Abbasifard M, Jamialahmadi T, Reiner Ž, Eid AH, Sahebkar A. The effect of nuts consumption on circulating oxidized low-density lipoproteins: A systematic review and meta-analysis of randomized controlled trials. Phytother Res 2023; 37:1678-1687. [PMID: 36856053 DOI: 10.1002/ptr.7787] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 01/06/2023] [Accepted: 02/10/2023] [Indexed: 03/02/2023]
Abstract
This systematic review and meta-analysis evaluated the effect of nuts in decreasing circulating levels of oxidized low-density lipoproteins (ox-LDL). A literature search was performed of major electronic databases (MEDLINE/PubMed, Scopus, and ISI Web of Science) from inception up to November 15th, 2021 to find randomized controlled trials (RCTs) evaluating the effect of different nuts on circulating levels of ox-LDL. The effect size was determined using standardized mean difference (SMD) and corresponding 95% confidence intervals (CI). Evaluation of funnel plot, Begg's rank correlation, and Egger's weighted regression tests were used to assess the presence of publication bias in the meta-analysis. This systematic review and meta-analysis included 15 RCTs involving 997 subjects. Meta-analysis showed that nuts significantly decreased serum levels of ox-LDL. Besides, meta-regression results of the association between confounders such as duration of nuts consumption or delta LDL-cholesterol and levels of ox-LDL, were not significant. The correlation between nuts type and ox-LDL levels was significant in subgroup analyses suggesting the most significant effect of pistachios consumption on reducing the circulating concentrations of ox-LDL. To conclude, nuts consumption decreases the circulating concentrations of ox-LDL which might be beneficial for the prevention and/or progression of ASCVD.
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Affiliation(s)
- Mitra Abbasifard
- Department of Internal Medicine, Ali-Ibn Abi-Talib Hospital, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Tannaz Jamialahmadi
- Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Željko Reiner
- Department of Internal Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Ali H Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Medicine, The University of Western Australia, Perth, Australia
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Effects of Regular Brazil Nut ( Bertholletia excelsa H.B.K.) Consumption on Health: A Systematic Review of Clinical Trials. Foods 2022; 11:foods11182925. [PMID: 36141050 PMCID: PMC9498495 DOI: 10.3390/foods11182925] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
The Brazil nut (BN) is a promising food due to its numerous health benefits, but it is still necessary to systematically review the scientific evidence on these benefits. Thus, we examined the effects of regular BN consumption on health markers in humans according to the health state (with specific diseases or not) of the subjects. PubMed, Embase®, and Scielo databases were used to search for clinical trials. The PRISMA guideline was used to report the review, and the risk of bias for all studies was assessed. Twenty-four studies were included in the present review, of which fifteen were non-randomized. BNs were consumed in the context of a habitual free-living diet in all studies. Improvement in antioxidant status through increased levels of selenium and/or glutathione peroxidase activity in plasma, serum, whole blood, and/or erythrocytes was observed in all studies that evaluated antioxidant status, regardless of the health state of the sample. In addition, healthy subjects improved lipid markers and fasting glucose. Subjects with obesity had improvement in markers of lipid metabolism. Subjects with type 2 diabetes mellitus or dyslipidemia improved oxidative stress or DNA damage. Subjects undergoing hemodialysis benefited greatly from BN consumption, as they improved lipid profile markers, oxidative stress, inflammation, and thyroid function. Older adults with mild cognitive impairment improved verbal fluency and constructional praxis, and controversial results regarding the change in a marker of lipid peroxidation were observed in subjects with coronary artery disease. In conclusion, the benefits of BN consumption were found in different pathways of action and study populations.
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Khalili L, A-Elgadir TME, Mallick AK, El Enshasy HA, Sayyed RZ. Nuts as a Part of Dietary Strategy to Improve Metabolic Biomarkers: A Narrative Review. Front Nutr 2022; 9:881843. [PMID: 35425791 PMCID: PMC9001892 DOI: 10.3389/fnut.2022.881843] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 03/08/2022] [Indexed: 11/13/2022] Open
Abstract
Background Nuts are in the spotlight because of their association with improved health outcomes. We aimed to summarize the findings of previous studies to evaluate the impact of nuts consumption on glycaemic and lipid profile, inflammation, and oxidative stress. Methods Electronic searches for observational and intervention studies were undertaken in PubMed, Embase, Web of Science, and Science Direct until 2022 for searching the studies aiming the application of different types of nuts and the beneficial effects of nuts in improving glycemia, dyslipidemia, inflammation, and oxidative stress. Results Results from 56 interventional, 9 narrative and 3 systematic reviews, and 12 meta-analysis studies, aiming at the evaluating beneficial effects of different types of nuts on metabolic markers, showed that nut consumption could improve metabolic markers, including glycaemic factors, lipid profile, and inflammatory and oxidative stress parameters in both healthy and individuals with metabolic disorders in a type-, dose- and duration-dependent manner. According to their unique nutrient components, nuts can be known as a part of a healthy diet, resulting in improved metabolic biomarkers. Conclusion Considering the efficacy of nuts in improving metabolic markers, incorporation of, incorporating nuts the effectiveness of nuts in improving metabolic markers, incorporating nuts in the diet may prevent the incidence or aggravation of chronic metabolic diseases. Considering the health benefits of the nuts' components, including essential micronutrients, if consumed in the appropriate dose and duration to provide the necessary amount of effective micronutrients to improve health, we will see an improvement in metabolic factors. At the same time, more research is required to determine the optimal type, dose, and duration of nut intervention with regards to metabolic control and reducing the risk of developing metabolic disorders.
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Affiliation(s)
- Leila Khalili
- Department of Community Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ayaz Khurram Mallick
- Department of Clinical Biochemistry, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Hesham Ali El Enshasy
- Insitute of Bioproduct Development (IBD), Universiti Teknologi Malaysia (UTM), Skudai, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai, Malaysia
- City of Scientific Research and Technology Applications (SRTA), Alexandria, Egypt
| | - R. Z. Sayyed
- Department of Microbiology, PSGVP Mandal's Arts, Science, and Commerce College, Shahada, India
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Alcântara DB, Dionísio AP, Artur AG, Silveira BKS, Lopes AF, Guedes JAC, Luz LR, Nascimento RF, Lopes GS, Hermsdorff HHM, Zocolo GJ. Selenium in Brazil nuts: An overview of agronomical aspects, recent trends in analytical chemistry, and health outcomes. Food Chem 2022; 372:131207. [PMID: 34634585 DOI: 10.1016/j.foodchem.2021.131207] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 08/30/2021] [Accepted: 09/20/2021] [Indexed: 01/15/2023]
Abstract
Se is an essential element in mammals. We review how its bioavailability in soil and the ability of plants to accumulate Se in foods depends on the soil Se profile (including levels and formats), besides to describe how the various selenoproteins have important biochemical functions in the body and directly impact human health. Owing to its favorable characteristics, the scientific community has investigated selenomethionine in most nut matrices. Among nuts, Brazil nuts have been highlighted as one of the richest sources of bioavailable Se. We summarize the most commonly used analytical methods for Se species and total Se determination in nuts. We also discuss the chemical forms of Se metabolized by mammals, human biochemistry and health outcomes from daily dietary intake of Se from Brazil nuts. These findings may facilitate the understanding of the importance of adequate dietary Se intake and enable researchers to define methods to determine Se species.
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Affiliation(s)
- Daniel B Alcântara
- Department of Analytical Chemistry and Physical Chemistry, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Ana P Dionísio
- Embrapa Agroindústria Tropical, Dra Sara Mesquita St., 2270, 60511-110 Fortaleza, CE, Brazil
| | - Adriana G Artur
- Department of Soil Science, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Brenda K S Silveira
- Department of Nutrition and Health, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Amanda F Lopes
- Department of Analytical Chemistry and Physical Chemistry, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Jhonyson A C Guedes
- Department of Analytical Chemistry and Physical Chemistry, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Lícia R Luz
- Department of Analytical Chemistry and Physical Chemistry, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Ronaldo F Nascimento
- Department of Analytical Chemistry and Physical Chemistry, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Gisele S Lopes
- Department of Analytical Chemistry and Physical Chemistry, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Helen H M Hermsdorff
- Department of Nutrition and Health, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Guilherme J Zocolo
- Embrapa Agroindústria Tropical, Dra Sara Mesquita St., 2270, 60511-110 Fortaleza, CE, Brazil.
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Caldas APS, Rocha DMUP, Dionísio AP, Hermsdorff HHM, Bressan J. Brazil and cashew nuts intake improve body composition and endothelial health in women at cardiometabolic risk (Brazilian Nuts Study): a randomized controlled trial. Br J Nutr 2022; 128:1-38. [PMID: 35193718 DOI: 10.1017/s000711452100475x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Several mechanisms have been proposed for the beneficial effect of nuts on health. However, Brazil and cashew nuts remain the least studied. We aim to evaluate the effect of these nuts within an energy-restricted diet on body weight, body composition, cardiometabolic markers, and endothelial function in cardiometabolic risk women. Brazilian nuts study is a randomized controlled parallel 8-week dietary intervention trial. Forty women were randomly allocated to 1) Control group: Energy-restricted diet without nuts, n= 19 or, 2) Brazil and cashew nuts group (BN-Group): Energy-restricted diet containing daily 45 g of nuts (15 g of Brazil nuts + 30g of cashew nuts), n= 21. At the beginning and final intervention, anthropometry, body composition, and blood pressure were measured. Fasting blood sampling was obtained to evaluate lipid profile, glucose homeostasis, and endothelial function markers. After 8-week, plasma selenium concentration increased in BN-group (∆ = + 31.5 ± 7.8 μg/L; p= 0.001). Brazil and cashew nuts intake reduced total body fat (-1.3 ± 0.4 %) parallel to improvement of lean mass percentage in BN-group compared to the control. Besides, the soluble adhesion molecule VCAM-1 decreased (24.03 ± 15.7 pg/mL vs. -22.2 ± 10.3 pg/mL; p= 0.019) after Brazil and cashew nuts intake compared to the control. However, lipid and glucose profile markers, apolipoproteins, and blood pressure remained unchanged after the intervention. Thus, the addition of Brazil and cashew nuts to an energy-restricted diet can be a healthy strategy to improve body composition, selenium status, and endothelial inflammation in cardiometabolic risk women.
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Affiliation(s)
- Ana Paula Silva Caldas
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
| | | | - Ana Paula Dionísio
- Embrapa Agroindústria Tropical, Sara Mesquita Street, 2270, 60511-110, Fortaleza, Ceará, Brazil
| | | | - Josefina Bressan
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
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Effect of Brazil Nuts on Selenium Status, Blood Lipids, and Biomarkers of Oxidative Stress and Inflammation: A Systematic Review and Meta-Analysis of Randomized Clinical Trials. Antioxidants (Basel) 2022; 11:antiox11020403. [PMID: 35204285 PMCID: PMC8869304 DOI: 10.3390/antiox11020403] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/09/2022] [Accepted: 02/15/2022] [Indexed: 02/06/2023] Open
Abstract
Tree nuts, including Brazil nuts, have been hypothesized to impact cardiovascular health through the modulation of oxidative stress and inflammation. Nonetheless, a quantitative analysis of these effects has not been performed. Therefore, the aim of this study was to systematically revise and quantify the effect of Brazil nut intervention on selenium status, blood lipids, and biomarkers of oxidative stress and inflammation using a meta-analytical approach. To meet the goals of this study, a systematic search of PubMed, EMBASE, and Web of Science databases of published randomised clinical trials reporting on dietary interventions with Brazil nuts and their effects on selenium status, blood lipids, and markers of oxidative stress and inflammation was performed. Eight articles were included for systematic review and meta-analysis. Based on the conducted analysis, a significant positive effect of Brazil nuts on selenium blood concentration (SMD = 6.93, 95% CI: 3.99; 9.87) was found. Additionally, a positive effect of Brazil nut intervention on glutathione peroxidase activity (SMD = 0.53, 95% CI: 0.07; 0.99) was observed. However, no significant results were found when considering blood lipid levels, including results for total cholesterol (SMD = −0.22, 95% CI: −0.57; 0.14), HDL cholesterol (SMD = −0.04, 95% CI: −0.28; 0.19) and LDL cholesterol (SMD = −0.15; 95% CI: −0.43; 0.13). In conclusion, the findings from this study suggest that Brazil nut consumption improves selenium status and exerts antioxidant effects, which could be considered a potential pathway for the prevention of metabolic disorders related to altered blood lipid profiles. However, further studies are needed to elucidate the effect of Brazil nuts toward blood lipid profile, also preferably controlling for other biomarkers.
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Almeida PPD, Thomasi BBDM, Costa NDS, Valdetaro L, Pereira AD, Gomes ALT, Stockler-Pinto MB. Brazil Nut ( Bertholletia excelsa H.B.K) Retards Gastric Emptying and Modulates Enteric Glial Cells in a Dose-Dependent Manner. JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2022; 41:157-165. [PMID: 33301378 DOI: 10.1080/07315724.2020.1852981] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 11/04/2020] [Accepted: 11/15/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND The role of food and nutrients in the regulation of enteric glial cell functions is unclear. Some foods influence enteric neurophysiology and can affect glial cell functions that include regulation of the intestinal barrier, gastric emptying, and colonic transit. Brazil nuts are the most abundant natural source of selenium, unsaturated fatty acids, fibers, and polyphenols. OBJECTIVE The study investigated the effects of a Brazil nut-enriched diet on enteric glial cells and gastrointestinal transit. METHODS Two-month-old male Wistar rats were randomized to a standard diet (control group, CG), standard diet containing 5% (wt/wt) Brazil nut (BN5), and standard diet containing 10% (wt/wt) Brazil nut (BN10) (n = 9 per group). After eight weeks, the animals underwent constipation and gastric emptying tests to assess motility. Evaluations of colonic immunofluorescence staining for glial fibrillary acidic protein (GFAP) and myenteric ganglia area were performed. RESULTS The BN5 group showed increased weight gain while the BN10 group did not (p < 0.0001). The BN10 group showed higher gastric residue amounts compared to the other groups (p = 0.0008). The colon exhibited an increase in GFAP immunoreactivity in the BN5 group compared to that in the other groups (p = 0.0016), and the BN10 group presented minor immunoreactivity compared to the CG (p = 0.04). The BN10 group presented a minor ganglia area compared to the CG (p = 0.0155). CONCLUSION The Brazil nut-enriched diet modified the gastric residual, colonic GFAP immunoreactivity, and myenteric ganglia area after eight weeks in healthy male Wistar rats.
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Affiliation(s)
| | | | - Nathalia da Silva Costa
- Postgraduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | - Luisa Valdetaro
- Postgraduate Program in Neurosciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | - Aline D'Avila Pereira
- Postgraduate Program in Medical Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | - Ana Lúcia Tavares Gomes
- Postgraduate Program in Neurosciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | - Milena Barcza Stockler-Pinto
- Postgraduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil
- Postgraduate Program in Nutrition Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil
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13
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da Silva JS, Rosa AF, Moncau CT, Vignato BS, Pugine SMP, de Melo MP, Sanchez JMD, Zanetti MA. Effect of different selenium sources and concentrations on glutathione peroxidase activity and cholesterol metabolism of beef cattle. J Anim Sci 2021; 99:6424803. [PMID: 34755854 DOI: 10.1093/jas/skab321] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 11/02/2021] [Indexed: 11/15/2022] Open
Abstract
The objective of this study was to investigate the effects of different Se sources and concentrations on glutathione forms and cholesterol metabolism in beef cattle. Sixty-three Nellore bulls (412 ± 19 kg BW; 24 months old) were randomly assigned to a completely randomized design in a 2×3 + 1 factorial arrangement (63 pens; one animal/pen) with two Se sources (sodium selenite, ING and Se-yeast, ORG), three concentrations (0.3, 0.9 and 2.7 mg supplemental Se/kg DM), and control treatment (without Se supplementation) fed for 90 days. Blood samples were collected on d 0, 28, 56, and 84. Muscle and liver samples were collected at harvest. Hepatic GSSG (P = 0.004), GSH/GSSG ratio (P = 0.030), and GSH-Px (P = 0.004) were affected by Se source x concentration interaction. Oxidized glutathione was higher in the ORG group vs. ING at concentration 2.7 mg supplemental Se/kg DM, but at 0.3 mg supplemental Se/kg DM the ING group was higher than ORG. The liver GSH-Px activity was higher in the ORG group vs. ING at concentration 0.9 and 2.7 mg supplemental Se/kg DM. The GSH/GSSG ratio was the highest in animals fed 0.3 mg supplemental Se/kg DM of ORG. Selenium liver concentration increased linearly with the supplemental Se concentration in the diet (y = 0.0583 + 0.4254x, R 2 = 0.92, P < 0.0001), regardless of source. Total meat cholesterol was greater (P < 0.001) in CON (control) vs. SUP (supplemented, regardless source) group. The muscle GSH-Px activity was higher (P < 0.001) in SUP vs. CON and increased (P < 0.004) with increasing supplemental Se concentrations. There was an increase on VLDL, glucose, and triglycerides in ORG vs. ING (P ≤ 0.035). In general, serum Se was higher (P < 0.001) in SUP vs. CON and increased with increasing supplemental Se concentration. Lastly, the HMGCR concentration was lower (P = 0.002) in SUP (0.39 ng/mL) vs. CON (0.55 ng/mL). Selenium supplementation with different sources and concentrations has the potential to affect cholesterol metabolism by affecting GSH/GSSG ratio, GSH-Px, and the HMGCR.
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Affiliation(s)
- Janaina S da Silva
- Department of Animal Science, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Alessandra F Rosa
- Department of Animal Science, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Cristina T Moncau
- Department of Animal Science, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Bárbara Silva Vignato
- Department of Animal Science, College of Agriculture "Luiz de Queiroz", University of São Paulo, ESALQ/USP, Piracicaba, Brazil
| | - Silvana Marina P Pugine
- Department of Basic Science, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Mariza P de Melo
- Department of Basic Science, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - João Marcelo D Sanchez
- University of Florida, Institute of Food and Agricultural Sciences, Range Cattle Research and Education Center, USA
| | - Marcus Antonio Zanetti
- Department of Animal Science, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
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14
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Fernández-Rodríguez R, Mesas AE, Garrido-Miguel M, Martínez-Ortega IA, Jiménez-López E, Martínez-Vizcaíno V. The Relationship of Tree Nuts and Peanuts with Adiposity Parameters: A Systematic Review and Network Meta-Analysis. Nutrients 2021; 13:nu13072251. [PMID: 34208812 PMCID: PMC8308485 DOI: 10.3390/nu13072251] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/21/2021] [Accepted: 06/28/2021] [Indexed: 02/07/2023] Open
Abstract
The network meta-analysis and systematic review conducted aim to comparatively assess the effects of tree nuts and peanuts on body weight (BW), body mass index (BMI), waist circumference (WC), and body fat percentage (BF%). A systematic search up to 31 December 2020 was performed. A random-effects network meta-analysis was conducted following the PRISMA-NMA statement. A total of 105 randomized controlled trials (RCTs) with measures of BW (n = 6768 participants), BMI (n = 2918), WC (n = 5045), and BF% (n = 1226) were included. The transitivity assumption was met based on baseline characteristics. In the comparisons of nut consumption versus a control diet, there was no significant increase observed in any of the adiposity-related measures examined except for hazelnut-enriched diets, which raised WC. Moreover, almond-enriched diets significantly reduced WC compared to the control diet and to the pistachio-, mixed nuts-, and hazelnut-enriched diets. In subgroup analyses with only RCTs, designed to assess whether nut consumption affected weight loss, almonds were associated with reduced BMI and walnuts with reduced %BF. The evidence supports that: (1) tree nut and peanut consumption do not influence adiposity, and (2) compared to a control diet, the consumption of almond-enriched diets was associated with a reduced waist circumference.
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Affiliation(s)
- Rubén Fernández-Rodríguez
- Health and Social Research Center, Universidad de Castilla La-Mancha, 16071 Cuenca, Spain; (R.F.-R.); (M.G.-M.); (I.A.M.-O.); (E.J.-L.); (V.M.-V.)
| | - Arthur E. Mesas
- Health and Social Research Center, Universidad de Castilla La-Mancha, 16071 Cuenca, Spain; (R.F.-R.); (M.G.-M.); (I.A.M.-O.); (E.J.-L.); (V.M.-V.)
- Health Science Centre, Universidade Estadual de Londrina, Londrina 86038-350, Brazil
- Correspondence: ; Tel.: +34-969179100 (ext. 4686)
| | - Miriam Garrido-Miguel
- Health and Social Research Center, Universidad de Castilla La-Mancha, 16071 Cuenca, Spain; (R.F.-R.); (M.G.-M.); (I.A.M.-O.); (E.J.-L.); (V.M.-V.)
- Facultad de Enfermería, Universidad de Castilla-La Mancha, 02006 Albacete, Spain
| | - Isabel A. Martínez-Ortega
- Health and Social Research Center, Universidad de Castilla La-Mancha, 16071 Cuenca, Spain; (R.F.-R.); (M.G.-M.); (I.A.M.-O.); (E.J.-L.); (V.M.-V.)
| | - Estela Jiménez-López
- Health and Social Research Center, Universidad de Castilla La-Mancha, 16071 Cuenca, Spain; (R.F.-R.); (M.G.-M.); (I.A.M.-O.); (E.J.-L.); (V.M.-V.)
| | - Vicente Martínez-Vizcaíno
- Health and Social Research Center, Universidad de Castilla La-Mancha, 16071 Cuenca, Spain; (R.F.-R.); (M.G.-M.); (I.A.M.-O.); (E.J.-L.); (V.M.-V.)
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca 1101, Chile
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15
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Kume WT, de Jesus Porto EP, de Lara Spada EC, Lisboa DR, Stachack FFF, Terezo AJ, Hernandes T, Takeuchi KP, Dos Santos Elias MP, Gai BM, Kawashita NH, de França Lemes SA. Acute supplementation of growing rats with Brazil nut flour increases hepatic lipid content but prevents oxidative damage in the liver. J Food Biochem 2021; 45:e13834. [PMID: 34180548 DOI: 10.1111/jfbc.13834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/14/2021] [Accepted: 06/07/2021] [Indexed: 01/19/2023]
Abstract
Brazil nuts (BN) (Bertholletia excels, Bonpl.), are of great importance because of their nutritional properties and economic value. They can be consumed in natura or as flour (BNF). In this study, we evaluated the effects of BNF and BN intakes (Both 5% and 15%) on metabolic parameters of rats for 15 days. Serum Selenium (Se) levels were higher in BN-15% and BNF-15% groups. Lipid content was reduced in retroperitoneal and epididymal adipose tissues in all groups and in the BN-5% group in the liver. However, liver lipids increased in the BNF-15% group. The levels of carbonylated proteins and lipid peroxidation in the liver were not altered. The data reveal that the increase in hepatic lipids in the BNF-15% group probably occurred due to the high concentration of free fatty acids present in the flour. The Se bioavailability in the diet contributed to the preservation of the liver function in rats. PRACTICAL IMPLICATIONS: The consumption of BN is common in the population. However, changes in eating habits have led to a more frequent consumption of vegetable derivatives, such as drinks and oils. The cake residue generated after processing is still considered of high nutritional value, since it is a source of protein and minerals such as Se. Because of its low cost, the use of pie at the industrial level is becoming increasingly more interesting for the development of new products, and the Brazil nut flour (BNF) is considered a good option. Our study showed that just like BN, BNF can be a source of selenium for the body, although changes in lipid metabolism and physiological parameters can be observed depending on the amount used. We believe that the results of this investigation can be used to guide the development of new technologies and products containing BN.
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Affiliation(s)
| | | | | | | | | | - Ailton José Terezo
- Department of Chemistry, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Thaís Hernandes
- Food and Nutrition Department, Federal University of Mato Grosso, Cuiabá, Brazil
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16
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Watanabe LM, Navarro AM, Seale LA. Intersection between Obesity, Dietary Selenium, and Statin Therapy in Brazil. Nutrients 2021; 13:2027. [PMID: 34204631 PMCID: PMC8231251 DOI: 10.3390/nu13062027] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 01/14/2023] Open
Abstract
Obesity is among the most alarming health concerns, impacting public health and causing a socioeconomic challenge, especially in developing countries like Brazil, where approximately one quart of the population presents obesity. As an established risk factor for numerous comorbidities with a multifactorial etiology, obesity is a consequence of energy-dense overfeeding, however with significant undernourishment, leading to excessive adipose tissue accumulation and dysfunction, dyslipidemia, and micronutrient deficiencies. About 60% of patients with obesity take statins, a cholesterol-lowering medication, to curb dyslipidemia, with ~10% of these patients presenting various myopathies as side effects. Statins act upon the rate-limiting enzyme of cholesterol biosynthesis in the liver, which is a pathway providing intermediates to the synthesis of selenoproteins, i.e., enzymes containing the micronutrient selenium. Statins have been postulated to negatively impact selenoprotein synthesis, particularly in conditions of selenium deficiency, and potentially implicated in the myopathies occurring as side effects of statins. The Brazilian population is prone to selenium deficiency, hence could be considered more susceptible to statin side effects. This review examines the specific consequences to the Brazilian population of the harmful intersection between obesity development and concomitant micronutrient deficiencies, particularly selenium, combined with statin treatment in the context of nutrition in Brazil.
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Affiliation(s)
- Ligia M. Watanabe
- Department of Health Sciences, Division of Nutrition and Metabolism, Ribeirão Preto Medical School, University of São Paulo—FMRP/USP, Ribeirão Preto 14040-900, SP, Brazil; (L.M.W.); (A.M.N.)
| | - Anderson M. Navarro
- Department of Health Sciences, Division of Nutrition and Metabolism, Ribeirão Preto Medical School, University of São Paulo—FMRP/USP, Ribeirão Preto 14040-900, SP, Brazil; (L.M.W.); (A.M.N.)
| | - Lucia A. Seale
- Pacific Biosciences Research Center, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822, USA
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17
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Frausto-González O, Bautista CJ, Narváez-González F, Hernandez-Leon A, Estrada-Camarena E, Rivero-Cruz F, González-Trujano ME. Bertholletia excelsa Seeds Reduce Anxiety-Like Behavior, Lipids, and Overweight in Mice. Molecules 2021; 26:molecules26113212. [PMID: 34072024 PMCID: PMC8198383 DOI: 10.3390/molecules26113212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/19/2021] [Accepted: 05/19/2021] [Indexed: 11/25/2022] Open
Abstract
Overweight, obesity, and psychiatric disorders are serious health problems. To evidence the anxiolytic-like effects and lipid reduction in mice receiving a high-calorie diet and Bertholletia excelsa seeds in a nonpolar extract (SBHX, 30 and 300 mg/kg), animals were assessed in open-field, hole-board, and elevated plus-maze tests. SBHX (3 and 10 mg/kg) potentiated the pentobarbital-induced hypnosis. Chronic administration of SBHX for 40 days was given to mice fed with a hypercaloric diet to determine the relationship between water and food intake vs. changes in body weight. Testes, epididymal white adipose tissue (eWAT), and liver were dissected to analyze fat content, triglycerides, cholesterol, and histological effects after administering the hypercaloric diet and SBHX. Fatty acids, such as palmitoleic acid (0.14%), palmitic acid (21.42%), linoleic acid (11.02%), oleic acid (59.97%), and stearic acid (7.44%), were identified as constituents of SBHX, producing significant anxiolytic-like effects and preventing body-weight gain in mice receiving the hypercaloric diet without altering their water or food consumption. There was also a lipid-lowering effect on the testicular tissue and eWAT and a reduction of adipocyte area in eWAT. Our data evidence beneficial properties of B. excelsa seeds influencing global health concerns such as obesity and anxiety.
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Affiliation(s)
- Oswaldo Frausto-González
- Laboratorio de Neurofarmacología de Productos Naturales, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, 14370 Mexico City, Mexico; (O.F.-G.); (A.H.-L.)
| | - Claudia J. Bautista
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15, Sección XVI, Tlalpan, 14000 Mexico City, Mexico;
| | - Fernando Narváez-González
- ISSSTE Hospital Regional “Gral. Ignacio Zaragoza”, Calz. Ignacio Zaragoza 1711, Ejército Constitucionalista, Chinam Pac de Juárez, Iztapalapa, 09220 Mexico City, Mexico;
| | - Alberto Hernandez-Leon
- Laboratorio de Neurofarmacología de Productos Naturales, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, 14370 Mexico City, Mexico; (O.F.-G.); (A.H.-L.)
| | - Erika Estrada-Camarena
- Laboratorio de Neuropsicofarmacología, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Calz. México-Xochimilco 101, Col, San Lorenzo Huipulco, Tlalpan, 14370 Mexico City, Mexico
- Correspondence: (E.E.-C.); (M.E.G.-T.)
| | - Fausto Rivero-Cruz
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510 Ciudad Universitaria, Mexico;
| | - María Eva González-Trujano
- Laboratorio de Neurofarmacología de Productos Naturales, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, 14370 Mexico City, Mexico; (O.F.-G.); (A.H.-L.)
- Correspondence: (E.E.-C.); (M.E.G.-T.)
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18
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Cardozo LFMDF, Mafra D, Tavares da Silva AC, Ermida Barbosa J, Oliveira da Cruz B, Tinoco Mesquita C, Barcza Stockler‐Pinto M. Effects of a Brazil nut‐enriched diet on oxidative stress and inflammation markers in coronary artery disease patients: A small and preliminary randomised clinical trial. NUTR BULL 2021. [DOI: 10.1111/nbu.12495] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | - Denise Mafra
- Post Graduate Program in Cardiovascular Sciences Fluminense Federal University (UFF Niterói Brazil
- Post Graduate Program in Nutrition Sciences Fluminense Federal University (UFF Niterói Brazil
- Post Graduate Program in Medical Sciences Fluminense Federal University (UFF Niterói Brazil
- Clinical Research Unit Antônio Pedro Hospital Fluminense Federal University Niterói Brazil
| | | | - Jaqueline Ermida Barbosa
- Post Graduate Program in Cardiovascular Sciences Fluminense Federal University (UFF Niterói Brazil
| | - Beatriz Oliveira da Cruz
- Post Graduate Program in Cardiovascular Sciences Fluminense Federal University (UFF Niterói Brazil
| | - Cláudio Tinoco Mesquita
- Post Graduate Program in Cardiovascular Sciences Fluminense Federal University (UFF Niterói Brazil
| | - Milena Barcza Stockler‐Pinto
- Post Graduate Program in Cardiovascular Sciences Fluminense Federal University (UFF Niterói Brazil
- Post Graduate Program in Nutrition Sciences Fluminense Federal University (UFF Niterói Brazil
- Clinical Research Unit Antônio Pedro Hospital Fluminense Federal University Niterói Brazil
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The Effect of Nut Consumption on Diet Quality, Cardiometabolic and Gastrointestinal Health in Children: A Systematic Review of Randomized Controlled Trials. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18020454. [PMID: 33430029 PMCID: PMC7827804 DOI: 10.3390/ijerph18020454] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/22/2020] [Accepted: 12/28/2020] [Indexed: 12/25/2022]
Abstract
Tree nuts and ground nuts are nutrient-rich foods known to improve human health when consumed regularly in the diet. Past observational studies suggest that nuts improve adult and child health; however, limited randomized control trials (RCTs) have assessed the health effects of nuts in children. Using a systematic review approach, we examined the effect of nut intake on health outcomes in children aged 8–18 years. We searched PubMed, Scopus, Web of Science, EMBASE and Cochrane library to identify RCTs of interest. A total of 5783 articles were identified, 4821 were screened by title and abstract and 37 by full text resulting in four articles that met the inclusion criteria for the review. Nut consumption was between 15 and 30 g with durations of between 3 and 16 weeks. Nut consumption was shown to improve children’s diet quality (increase children’s intake of essential nutrients including fats (monounsaturated and polyunsaturated fats), protein and fiber), there were inconsistent effects on biomarkers of cardiometabolic health (improve lipid profiles, microvascular reactivity and inflammation) and gastrointestinal health (increase in the proportion of beneficial fecal bacteria). Further studies exploring the broad health benefits of nuts in children are needed with consideration given to higher doses and longer intervention periods.
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Hou L, Rashid M, Chhabra M, Chandrasekhar B, Amirthalingam P, Ray S, Li Z. The effect of Bertholletia excelsa on body weight, cholestrol, and c-reactive protein: A systematic review and meta-analysis of randomized controlled trials. Complement Ther Med 2020; 57:102636. [PMID: 33271300 DOI: 10.1016/j.ctim.2020.102636] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND & OBJECTIVE(S) Bertholletia excelsa is a rich herbal source of anti-oxidants and phenols. The goal of this study is to evaluation the effect of bertholletia excelsa nut on body weight, C-reactive protein (CRP) and lipid profile. METHODS A literature search was conducted in PubMed, Scopus and Web of sciences databases by two reviewers up to October 2019. Random effect model used to combine results. RESULTS Six studies included in analysis with 71 participants. The population was public population. Pooled results showed Bertholletia excelsa have reduction effect on triglyceride weighted mean difference (WMD: -8.23 mg/dl, 95 % CI -15.09, -1.38, I² = 0%), Cholesterol (WMD: -14.31 mg/dl, 95 % CI -23.38, -5.24, I² = 47 %), Low-density lipoprotein (LDL) (WMD: -9.27 mg/dl, 95 % CI -13.48, -5.06, I² = 0%). CONCLUSION This study provided an evidence that Bertholletia excelsa nuts have reduction effect on triglyceride, cholesterol, and LDL levels.
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Affiliation(s)
- Lili Hou
- Department of Clinical Nutrition, Taizhou People's Hospital, Taizhou, Jiangsu, 225300, China
| | - Muhammed Rashid
- Department of Pharmacy Practice, Sri Adichunchanagiri College of Pharmacy, Adichunchanagiri University, BG Nagar, 571448, Karnataka, India
| | - Manik Chhabra
- Department of Pharmacy Practice, Indo-Soviet Friendship College of Pharmacy, Moga, 142001, Punjab, India
| | - Boya Chandrasekhar
- Creative Educational Society's College of Pharmacy, Andra Pradesh, India
| | | | - Sujoy Ray
- Department of Psychiatry, St. John's Medical College and Hospital, Bangalore, India
| | - Zhenzuo Li
- Department of Endocrinology, The Fourth people's Hospital of Jinan City, No.50 Normal Road, Tianqiao District, Jinan, Shandong Province, 250031, China.
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Marques Neto SR, Castiglione RC, da Silva TCB, Paes LDS, Pontes A, Oliveira DF, Ferraz EB, Ade Caldas CC, Nascimento JHM, Bouskela E. Effects of high intensity interval training on neuro-cardiovascular dynamic changes and mitochondrial dysfunction induced by high-fat diet in rats. PLoS One 2020; 15:e0240060. [PMID: 33095799 PMCID: PMC7584217 DOI: 10.1371/journal.pone.0240060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 09/18/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND AIMS Mitochondrial swelling is involved in the pathogenesis of many human diseases associated with oxidative stress including obesity. One of the strategies for prevention of deleterious effects related to obesity and overweight is engaging in regular physical activity, of which high intensity interval training (HIIT) is efficient in promoting biogenesis and improving the function of mitochondria. Therefore, our aims were to investigate the effects of HIIT on metabolic and neuro-cardiovascular dynamic control and mitochondrial swelling induced by high-fat diet (HFD). METHODS AND RESULTS Twenty-three male Wistar rats (60 - 80g) were divided into 4 subgroups: control (C), HIIT, HFD and HFD+HIIT. The whole experimentation period lasted for 22 weeks and HIIT sessions were performed 5 days a week during the last 4 weeks. At the end of the experiments, fasting glucose and insulin tolerance tests were performed. Cerebral microcirculation was analyzed using cortical intravital microscopy for capillary diameter and functional density. Cardiac function and ergoespirometric parameters were also investigated. Mitochondrial swelling was evaluated on brain and heart extracts. HFD promoted an increase on body adiposity (p<0.001), fasting glucose levels (p<0.001), insulin resistance index (p<0.05), cardiac hypertrophy index (p<0.05) and diastolic blood pressure (p<0.05), along with worsened cardiac function (p<0.05), reduced functional cerebral capillary density (p<0.05) and its diameter (p<0.01), and heart and brain mitochondrial function (p<0.001). HFD did not affect any ergoespirometric parameter. After 4 weeks of training, HIIT was able to improve cardiac hypertrophy index, diastolic blood pressure, cerebral functional capillary density (p<0.01) and heart and brain mitochondrial swelling (p<0.001). CONCLUSION In animals subjected to HFD, HIIT ameliorated both cerebral mitochondrial swelling and functional capillary density, but it did not improve cardiovascular function suggesting that the cardiovascular dysfunction elicited by HFD was not due to heart mitochondrial swelling.
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Affiliation(s)
- Silvio R. Marques Neto
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Physical Activity Sciences Laboratory (LACAF), Physical Activity Sciences Postgraduate Program, Salgado de Oliveira University (UNIVERSO), Niteroi, RJ, Brazil
- Exercise Physiology Laboratory, School of Physical Education, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
- Health Science School, Universidade do Grande Rio, Duque de Caxias, RJ, Brazil
| | - Raquel C. Castiglione
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Teresa C. B. da Silva
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Health Science School, Universidade do Grande Rio, Duque de Caxias, RJ, Brazil
| | - Lorena da S. Paes
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Aiza Pontes
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Dahienne F. Oliveira
- Cardiac Electrophysiology Laboratory, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Emanuelle B. Ferraz
- Cardiac Electrophysiology Laboratory, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carla Christina Ade Caldas
- Physical Activity Sciences Laboratory (LACAF), Physical Activity Sciences Postgraduate Program, Salgado de Oliveira University (UNIVERSO), Niteroi, RJ, Brazil
| | - José Hamilton M. Nascimento
- Cardiac Electrophysiology Laboratory, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Eliete Bouskela
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Acute Effects of Metformin and Vildagliptin after a Lipid-Rich Meal on Postprandial Microvascular Reactivity in Patients with Type 2 Diabetes and Obesity: A Randomized Trial. J Clin Med 2020; 9:jcm9103228. [PMID: 33050169 PMCID: PMC7601890 DOI: 10.3390/jcm9103228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 09/28/2020] [Accepted: 10/02/2020] [Indexed: 01/26/2023] Open
Abstract
Background: Type 2 diabetes mellitus and obesity are both related to endothelial dysfunction. Postprandial lipemia is a cardiovascular risk. Notably, it is known that a high-fat diet may elicit microvascular dysfunction, even in healthy subjects. Since anti-diabetic drugs have different mechanisms of action and also distinct vascular benefits, we aimed to compare the results of two anti-diabetic drugs after the intake of a lipid-rich meal on microcirculation in patients with type 2 diabetes and obesity. In parallel, we also investigated the metabolic profile, oxidative stress, inflammation, plasma viscosity, and some gastrointestinal peptides. Subjects/Methods: We included 38 drug-naïve patients, all women aged between 19 and 50 years, with BMI ≥ 30 kg/m2. We performed endothelial measurements and collected samples before (fasting) and after the intake of a lipid-rich meal at 30, 60, 120, and 180 min. Patients were randomized to metformin or vildagliptin, given orally just before the meal. Endothelial function was assessed by videocapillaroscopy and laser-Doppler flowmetry to investigate microvascular reactivity. Besides, we also investigated plasma viscosity, inflammatory and oxidative stress biomarkers, gastrointestinal peptides, and metabolic profile in all time points. Results: No differences at baseline were noted between groups. Vildagliptin increased glucagon-like peptide-1 compared to metformin. Paired comparisons showed that, during the postprandial period, vildagliptin significantly changed levels of insulin and glucagon-like peptide-1, and also the dipeptidyl peptidase-4 activity, while metformin had effects on plasma glucose solely. Metformin use during the test meal promoted an increase in functional capillary density, while vildagliptin kept non-nutritive microvascular blood flow and vasomotion unchanged. Conclusions: After the intake of a lipid-rich meal, the use of vildagliptin preserved postprandial non-nutritive microflow and vasomotion, while metformin increased capillary recruitment, suggesting protective and different mechanisms of action on microcirculation.
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Lorenzon dos Santos J, Schaan de Quadros A, Weschenfelder C, Bueno Garofallo S, Marcadenti A. Oxidative Stress Biomarkers, Nut-Related Antioxidants, and Cardiovascular Disease. Nutrients 2020; 12:nu12030682. [PMID: 32138220 PMCID: PMC7146201 DOI: 10.3390/nu12030682] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/25/2020] [Accepted: 03/02/2020] [Indexed: 02/06/2023] Open
Abstract
Atherosclerosis is related to fat accumulation in the arterial walls and vascular stiffening, and results in acute coronary syndrome which is commonly associated with acute myocardial infarction. Oxidative stress participates in the pathogenesis of atherosclerosis. Thus, the inclusion of food sources of dietary antioxidants, such as different kinds of nuts, may improve biomarkers related to oxidative stress, contributing to a possible reduction in atherosclerosis progression. This article has briefly highlighted the interaction between oxidative stress, atherosclerosis, and cardiovascular disease, in addition to the effect of the consumption of different nuts and related dietary antioxidants—like polyphenols and vitamin E—on biomarkers of oxidative stress in primary and secondary cardiovascular prevention. Studies in vitro suggest that nuts may exert antioxidant effects by DNA repair mechanisms, lipid peroxidation prevention, modulation of the signaling pathways, and inhibition of the MAPK pathways through the suppression of NF-κB and activation of the Nrf2 pathways. Studies conducted in animal models showed the ability of dietary nuts in improving biomarkers of oxidative stress, such as oxLDL and GPx. However, clinical trials in humans have not been conclusive, especially with regards to the secondary prevention of cardiovascular disease.
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Affiliation(s)
- Julia Lorenzon dos Santos
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, 90040-371 Rio Grande do Sul, Brazil; (J.L.d.S.); (A.S.d.Q.); (C.W.); (S.B.G.)
| | - Alexandre Schaan de Quadros
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, 90040-371 Rio Grande do Sul, Brazil; (J.L.d.S.); (A.S.d.Q.); (C.W.); (S.B.G.)
| | - Camila Weschenfelder
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, 90040-371 Rio Grande do Sul, Brazil; (J.L.d.S.); (A.S.d.Q.); (C.W.); (S.B.G.)
| | - Silvia Bueno Garofallo
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, 90040-371 Rio Grande do Sul, Brazil; (J.L.d.S.); (A.S.d.Q.); (C.W.); (S.B.G.)
| | - Aline Marcadenti
- Graduate Program in Health Sciences (Cardiology), Institute of Cardiology of Rio Grande do Sul/University Foundation of Cardiology (IC/FUC), Princesa Isabel Avenue, 395, Porto Alegre, 90040-371 Rio Grande do Sul, Brazil; (J.L.d.S.); (A.S.d.Q.); (C.W.); (S.B.G.)
- HCor Research Institute, Coracao Hospital (IP-HCor), Abílio Soares Street, 250, 04004-05 São Paulo, Brazil
- Correspondence: ; Tel.: +55-(11)-3053-6611 (ext. 3558)
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Costa e Silva LM, Pereira de Melo ML, Faro Reis FV, Monteiro MC, dos Santos SM, Quadros Gomes BA, Meller da Silva LH. Comparison of the Effects of Brazil Nut Oil and Soybean Oil on the Cardiometabolic Parameters of Patients with Metabolic Syndrome: A Randomized Trial. Nutrients 2019; 12:E46. [PMID: 31877968 PMCID: PMC7019763 DOI: 10.3390/nu12010046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 12/07/2019] [Accepted: 12/18/2019] [Indexed: 01/15/2023] Open
Abstract
Recent evidence suggests that replacing saturated fat with unsaturated fat is beneficial for cardiovascular health. This study compared the effects of Brazil nut oil (BNO) and soybean oil (SO) supplementation for 30 days on anthropometric, blood pressure, biochemical, and oxidative parameters in patients with metabolic syndrome (MS). Thirty-one patients with MS were randomly allocated to receive 30 sachets with 10 mL each of either BNO (n = 15) or SO (n = 16) for daily supplementation. Variables were measured at the beginning of the study and after 30 days of intervention. No change in anthropometric and blood pressure variables were observed (p > 0.05). Total (p = 0.0253) and low-density lipoprotein (p = 0.0437) cholesterol increased in the SO group. High-density lipoprotein cholesterol decreased (p = 0.0087) and triglycerides increased (p = 0.0045) in the BNO group. Malondialdehyde levels decreased in the BNO group (p = 0.0296) and total antioxidant capacity improved in the SO group (p = 0.0110). Although the addition of oils without lifestyle interventions did not affect anthropometric findings or blood pressure and promoted undesirable results in the lipid profile in both groups, daily supplementation of BNO for 30 days decreased lipid peroxidation, contributing to oxidative stress reduction.
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Affiliation(s)
- Lívia Martins Costa e Silva
- LAMEFI—Laboratory of Physical Measures, Postgraduate Program in Food Science and Technology, Federal University of Para, Belém Pará 66075-900, Brazil
| | | | | | - Marta Chagas Monteiro
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Para, Belém Pará 66075-900, Brazil
| | - Savio Monteiro dos Santos
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Para, Belém Pará 66075-900, Brazil
| | - Bruno Alexandre Quadros Gomes
- Neuroscience and Cellular Biology Postgraduation Program, Biological Science Institute, Federal University of Para, Belém Pará 66075-900, Brazil
| | - Luiza Helena Meller da Silva
- LAMEFI—Laboratory of Physical Measures, Postgraduate Program in Food Science and Technology, Federal University of Para, Belém Pará 66075-900, Brazil
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Reis BZ, Duarte GBS, Vargas-Mendez E, Ferreira LRP, Barbosa F, Cercato C, Rogero MM, Cozzolino SMF. Brazil nut intake increases circulating miR-454-3p and miR-584-5p in obese women. Nutr Res 2019; 67:40-52. [DOI: 10.1016/j.nutres.2019.05.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 05/08/2019] [Accepted: 05/10/2019] [Indexed: 01/13/2023]
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de Souza AC, Gallo CBM, Passos MCDF, Croccia C, Miranda GL, Sampaio FJB, Gregório BM. Effect of a high-fat diet on the rat bladder wall and bioactive action of Brazil nut oil. Int Braz J Urol 2019; 45:161-168. [PMID: 30556993 PMCID: PMC6442138 DOI: 10.1590/s1677-5538.ibju.2018.0547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/05/2018] [Indexed: 12/28/2022] Open
Abstract
High-fat diet-induced obesity is associated with metabolic disorders. The Brazil nut has bioactive substances and has been used to control the damage caused by obesity in several organs. The work intended to show the damage caused by high-fat diet in the bladder wall and if the Brazil nut oil added to the diet could ameliorate or reverse this effect. Sixty-day-old rats were divided into two groups: C (control, n = 30) and HF (high-fat, n = 30) diets. At 90 days, 10 animals of each group were sacrificed. The others were divided into 4 groups: C and HF (animals that maintained their previous diet, n = 10 for each group) and C / Bno and HF / Bno (animals whose control or high-fat diet was supplemented by Brazil nut oil, n = 10 for each group). Sacrifice occurred at 120 days, and the bladders were removed and analyzed. Epithelial height was increased in the HF compared to the C group. In contrast, the C / Bno had a lower epithelial height compared to the others. The percentage of collagen between the detrusor muscle fibers was significantly greater in C / Bno, HF and HF / Bno than in control group. The HF had a larger muscle fiber diameter than the C group, while the C / Bno presented lower values than the HF and HF / Bno groups. HF diets induced bladder wall damage. These changes in the rat's bladder wall were partially reversed by the Bno.
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Affiliation(s)
- Aline Costa de Souza
- Unidade de Pesquisa Urogenital, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - Carla Braga Mano Gallo
- Unidade de Pesquisa Urogenital, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - Magna Cottini da Fonseca Passos
- Departamento de Nutrição Aplicada, Instituto de Nutrição, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - Carolina Croccia
- Instituto de Nutrição Josue de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - Glauciane Lacerda Miranda
- Instituto de Nutrição Josue de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | | | - Bianca Martins Gregório
- Unidade de Pesquisa Urogenital, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
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Performance, carcass characteristics and meat quality of Nellore cattle supplemented with supranutritional doses of sodium selenite or selenium-enriched yeast. Animal 2019; 14:215-222. [PMID: 31203827 DOI: 10.1017/s1751731119001265] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The enrichment of meat with selenium is important to improve the intake of selenium by humans. The effects of supranutritional doses of sodium selenite or selenium-enriched yeast on performance, carcass characteristics and meat quality were evaluated using 63 Nellore cattle in a completely randomized design with two sources (sodium selenite and selenium-enriched yeast), three levels (0.3, 0.9 and 2.7 mg Se/kg DM) and control treatment (without addition of selenium). Final body weight (BW), average daily gain, dry matter intake and gain to feed ratio (G : F) at the end of 84 days of supplementation were not influenced by treatments (P>0.05). Values of pH, ribeye area, back fat thickness and marbling score were also not influenced by treatments ( P>0.05). Dressing percentage was greater (P=0.02) in Nellore cattle supplemented with organic Se (58.70%) compared to animals supplemented with inorganic Se (57.94%). Hot carcass weight increased ( P=0.05) with the increasing of Se levels in the diet. Colour, shear force (SF), cooking and drip loss remained unchanged ( P>0.05); however thiobarbituric acid reactive substances was 15.51% higher with inorganic Se compared with organic Se. The selenium concentration in the meat of animals receiving organic selenium was higher ( P<0.001) than that of animals receiving sodium selenite, at all levels (0.3; 0.9 and 2.7 mg/kg DM). The meat of animals receiving 2.7 mg of organic Se/kg of DM presented concentration of 372.7 μg Se/kg in the L.dorsi muscle, and the intake of 150 g of this meat by humans provides approximately 100% of the recommended Se intake (55 μg Se/day for adults). Therefore, the use of supranutritional doses of 2.7 mg Se/kg of DM, regardless of source, is a way of naturally producing selenium-enriched meat without compromising performance, carcass characteristics and quality of Nellore bovine meat.
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Teixeira N, Melo JC, Batista LF, Paula-Souza J, Fronza P, Brandão MG. Edible fruits from Brazilian biodiversity: A review on their sensorial characteristics versus bioactivity as tool to select research. Food Res Int 2019; 119:325-348. [DOI: 10.1016/j.foodres.2019.01.058] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 01/21/2019] [Accepted: 01/23/2019] [Indexed: 12/24/2022]
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Abstract
INTRODUCTION Microcirculation is essential for adequate tissue perfusion and organ function. Microcirculatory changes may occur in cirrhosis, inducing loss of multiorgan function. The aim was to evaluate preliver transplantation and postliver transplantation aspects of multiorgan function, microcirculation, inflammatory, and endothelial biomarkers and survival in a controlled study including cirrhotic outpatients. PATIENTS AND METHODS We accessed functional capillary density (FCD) and red blood cell acceleration (RBCA) by nailfold videocapillaroscopy. Inflammatory and endothelial biomarkers [interleukin-6 (IL-6), soluble intercellular adhesion molecule-1, endothelin-1, and tumor necrosis factor-α] were analyzed. Cerebral and renal functions were assessed to represent organ dysfunction and regression analyses were carried out. Receiver operating characteristic curves were constructed and survival Kaplan-Meier analysis was carried out. RESULTS Fifty-four patients and 18 controls were included. Inflammatory and endothelial markers increased in advanced disease. FCD was reduced and RBCA was progressively lower according to disease severity. RBCA correlated inversely with inflammatory and endothelial biomarkers, and directly with renal function. The presence of hepatic encephalopathy correlated inversely with RBCA and directly with IL-6 and endothelin-1. In multivariate analysis, RBCA was an independent factor for organ dysfunction. The area under the receiver operating chartacteristic curve for IL-6 for survival was 0.74 (0.59-0.89), P=0.05. Transplant-free survival was 97.5% for values under 5.78 ng/ml (IL-6 best cutoff) and 83.9% above 5.78 ng/ml, log-rank=0.018. Eleven patients underwent transplantation, with an overall improvement in microcirculatory function. CONCLUSION Our results suggest a mechanism of organ damage in cirrhosis, where microcirculatory dysfunction could be correlated to inflammatory and endothelial biomarkers, and loss of multiorgan function. IL-6 seems to be an important survival marker of inflammation. Liver transplantation improved microcirculatory dysfunction, corroborating this hypothesis.
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Alonso-Castro AJ, Ruiz-Padilla AJ, Ramírez-Morales MA, Alcocer-García SG, Ruiz-Noa Y, Ibarra-Reynoso LDR, Solorio-Alvarado CR, Zapata-Morales JR, Mendoza-Macías CL, Deveze-Álvarez MA, Alba-Betancourt C. Self-treatment with herbal products for weight-loss among overweight and obese subjects from central Mexico. JOURNAL OF ETHNOPHARMACOLOGY 2019; 234:21-26. [PMID: 30641103 DOI: 10.1016/j.jep.2019.01.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mexico ranks second in the world for obesity prevalence. In Mexico, obese and overweight subjects commonly seek alternative treatments for weight-loss, including the use of herbal products. AIM OF THE STUDY The main objective of this study was to evaluate the prevalence of self-medication with herbal products for weight-loss among overweight and obese subjects residing in four states (Guanajuato, San Luis Potosi, State of Mexico, and Mexico City) from central Mexico. In addition, the factors related to self-medication among patients were studied. MATERIALS AND METHODS A total of 1404 overweight and obese subjects were interviewed. A chi-square test examined associations between socio-demographic and socio-economic information, and self-medication with herbal products for weight-loss. RESULTS The prevalence of self-medication was 42.9% among the participants who used herbal products for weight-loss. The female gender was the strongest factor (OR: 2.20 (1.75-2.77) associated with self-medication for weight-loss, followed by a low educational level (elementary and middle school) [OR: 1.80 (1.31-2.44)], and a middle-socioeconomic status [OR: 1.75 (1.21-2.52)]. The main herbal products used for weight-loss were based on: i) green tea, Camellia sinensis (12.7% of frequency), ii) aceitilla, Bidens odorata (6.6%), and iii) soybean, Glycine max (5.3%). In addition, 65% of the respondents considered herbal products ineffective for weight-loss after 6 months of use. CONCLUSION Due to the high incidence of overweight and obesity in Mexico, there is a high prevalence (42.9%) of self-medication using natural products for weight-loss, particularly in women from Central Mexico. This study indicates the important need to educate patients about the harmful effects of consuming these products.
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Affiliation(s)
- Angel Josabad Alonso-Castro
- Departamento de Farmacia, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Mexico.
| | - Alan Joel Ruiz-Padilla
- Departamento de Farmacia, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Mexico
| | | | | | - Yeniley Ruiz-Noa
- Departamento de Ciencias Médicas, División de Ciencias de la Salud, Universidad de Guanajuato, León, Guanajuato, Mexico
| | | | | | - Juan Ramón Zapata-Morales
- Departamento de Farmacia, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Mexico
| | | | - Martha Alicia Deveze-Álvarez
- Departamento de Farmacia, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Mexico
| | - Clara Alba-Betancourt
- Departamento de Farmacia, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, Mexico
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Swart R, Schutte AE, van Rooyen JM, Smith W, Mels CMC. The Association of Measures of the Micro- and Macro-Vasculature with Selenium and GPx Activity in a Young Bi-Ethnic Population: The African-PREDICT Study. J Am Coll Nutr 2019; 38:614-622. [PMID: 30822227 DOI: 10.1080/07315724.2019.1570479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Rijané Swart
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
| | - Aletta E. Schutte
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
- Medical Research Council: Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa
| | - Johannes M. van Rooyen
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
- Medical Research Council: Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa
| | - Wayne Smith
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
- Medical Research Council: Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa
| | - Catharina M. C. Mels
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
- Medical Research Council: Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa
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Hong MY, Groven S, Marx A, Rasmussen C, Beidler J. Anti-Inflammatory, Antioxidant, and Hypolipidemic Effects of Mixed Nuts in Atherogenic Diet-Fed Rats. Molecules 2018; 23:E3126. [PMID: 30501043 PMCID: PMC6321097 DOI: 10.3390/molecules23123126] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/26/2018] [Accepted: 11/27/2018] [Indexed: 12/22/2022] Open
Abstract
Nut consumption is associated with reduced risk of cardiovascular disease (CVD). Because most studies have administered single nut varieties, it is unknown whether mixed nuts will also reduce CVD risk. The objective of this study was to compare the effects of mixed nut and pistachio consumption on lipid profiles, glucose, inflammation, oxidative stress, and antioxidant capacity in rats fed an atherogenic diet. Thirty male Sprague-Dawley rats (21 days old) were assigned into three groups (n = 10) based on initial body weight and fed either an isocaloric control diet (no nuts), 8.1% pistachio diet (single nut), or 7.5% mixed nut diet (almonds, brazil nuts, cashews, macadamia nuts, peanuts, pecans, pistachios, and walnuts) for 8 weeks. Both pistachios and mixed nuts significantly decreased triglycerides, total cholesterol, and LDL-cholesterol (p < 0.05) compared with controls. Both nut groups exhibited reductions in C-reactive protein (p = 0.045) and oxidative stress (p = 0.004). The mixed nut group had greater superoxide dismutase (p = 0.004) and catalase (p = 0.044) and lower aspartate aminotransferase (p = 0.048) activities. Gene expression for Fas, Hmgcr, and Cox2 was downregulated for both nut groups compared to controls (p < 0.05). In conclusion, mixed nuts and individual nut varieties have comparable effects on CVD risk factors in rats.
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Affiliation(s)
- Mee Young Hong
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA 92182, USA.
| | - Shauna Groven
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA 92182, USA.
| | - Amanda Marx
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA 92182, USA.
| | - Caitlin Rasmussen
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA 92182, USA.
| | - Joshua Beidler
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA 92182, USA.
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Maranhão PA, de Souza MDGC, Panazzolo DG, Nogueira Neto JF, Bouskela E, Kraemer-Aguiar LG. Metabolic Changes Induced by High-Fat Meal Evoke Different Microvascular Responses in Accordance with Adiposity Status. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5046508. [PMID: 30515403 PMCID: PMC6236900 DOI: 10.1155/2018/5046508] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/08/2018] [Indexed: 11/17/2022]
Abstract
BACKGROUND Frequently, ingestion of lipids exceeds our daily requirements and constantly exposes humans to circulating lipid overload which may lead to endothelial dysfunction (ED), the earliest marker of atherosclerosis. Nailfold videocapillaroscopy (NVC) technique can detect ED on microcirculation. Using NVC, we aimed to demonstrate if metabolic alterations evoked by high-fat meals can act differently on microvascular endothelial reactivity in lean and women with obesity. METHODS Women, aged between 19 and 40 years, were allocated to control group (CG) and with obesity group (OBG) and were subjected to blood analysis for determination of glucose, total cholesterol (TC), triglycerides (TG), and low-density lipoprotein cholesterol (LDL-c) and high-density lipoprotein cholesterol (HDL-c) and NVC evaluation at fasting and 30, 60, 120, and 180-min after high-fat meal ingestion. NVC technique evaluated microvascular reactivity through the following variables: red blood cell velocity (RBCV) at rest and after 1-min ischemia (maximal red blood cell velocity, RBCVmax) and time taken to reach it (TRBCVmax). A P value ≤0.05 was considered significant. RESULTS High-fat meal promoted a two-phase response in both groups: one until 60-min, associated with glucose and insulin levels, and the other after 120-min, associated with TG levels. Significant differences between groups were observed concerning insulin and HDL-c concentrations only at fasting and TC, TG, and LDL-c levels in all-time points. Regarding microvascular reactivity, RBCV, RBCVmax, and TRBCVmax were significantly different in OBG at 30-min compared to baseline. RBCVmax and TRBCVmax were significantly different in CG at 30-min and 60-min comparing to fasting. In all-time points, OBG presented RBCV, RBCVmax , and TRBCVmax significantly different in comparison to CG. CONCLUSION High-fat meal worsened ED on microcirculation in women with obesity and induced impairment of endothelial function in lean ones, reinforcing the association between high-fat meal and atherosclerosis.
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Affiliation(s)
- Priscila Alves Maranhão
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-013, Brazil
| | - Maria das Graças Coelho de Souza
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-013, Brazil
| | - Diogo Guarnieri Panazzolo
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-013, Brazil
| | - José Firmino Nogueira Neto
- Lipids Laboratory (Lablip), Policlínica Piquet Carneiro, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-003, Brazil
| | - Eliete Bouskela
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-013, Brazil
| | - Luiz Guilherme Kraemer-Aguiar
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-013, Brazil
- Obesity Unit, Policlínica Piquet Carneiro, Department of Internal Medicine, Faculty of Medical Sciences, State University of Rio de Janeiro, Rio de Janeiro, RJ 20550-030, Brazil
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SILVA CCFD, SILVA GDLPE, SOARES JÚNIOR MS, BELÉIA ADP, CALIARI M. Addition of toasted baru nut (Dypteryx alata Vog.) and extruded rice bran to sugar cane candy (“rapadura”). FOOD SCIENCE AND TECHNOLOGY 2018. [DOI: 10.1590/fst.37016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
OBJECTIVE To determine whether nut intake is associated with the prevalence of metabolic syndrome in US adolescents. DESIGN A cross-sectional analysis of data from the National Health and Nutrition Examination Survey (NHANES) years 2003-2012. Anthropometric measurements, blood tests, 24 h diet recalls and demographic data were retrieved for participating adolescents. Metabolic syndrome was defined according to paediatric-modified Adult Treatment Panel III criteria. The exposure was defined as a nut intake ≥5 g/d. SETTING USA. SUBJECTS Individuals aged 12-19 years (n 2805). RESULTS Nut consumption was associated with lower odds for metabolic syndrome (crude OR=0·25; 95 % CI 0·11, 0·55; P≤0·001). This effect was independent of age, sex, race/ethnicity and family income:poverty ratio (adjusted OR=0·27; 95 % CI 0·12, 0·61; P=0·002), and was stable after controlling for nutritional covariates including intake of sugar and total energy consumption (OR=0·36; 95 % CI 0·16, 0·81; P=0·014). CONCLUSION Nut consumption of ≥5 g/d is independently associated with lower odds for metabolic syndrome in US adolescents.
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Effects of walnuts consumption on vascular endothelial function in humans: A systematic review and meta-analysis of randomized controlled trials. Clin Nutr ESPEN 2018; 28:52-58. [PMID: 30390893 DOI: 10.1016/j.clnesp.2018.07.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 12/19/2017] [Accepted: 07/24/2018] [Indexed: 12/11/2022]
Abstract
BACHGROUND AND AIMS Endothelial dysfunction can promote atherosclerosis pathogenesis. The aim of the present meta-analysis was to determine the effects of walnut consumption on peripheral endothelial function (EF) in adults. METHODS PUBMED, MEDLINE and EMBASE were searched to identify studies up to August 2017. Eligible studies conducted randomized controlled trials (RCTs) on the effects of walnut consumption compared with a control on EF. Standard mean difference (SMD) and 95% confidence intervals (CI) were reported as summary statistics. Standard methods were used for assessment of heterogeneity, meta-regression, sensitivity analysis and publication bias. RESULTS Five studies comprising a total of 323 subjects were included in the meta-analysis. The results showed a significant increase in EF after walnut consumption (SMD: 0.40%; 95% CI: 0.20 to 0.62; p < 0.001) with no evidence of heterogeneity across studies. Sensitivity analysis showed that the effect size was robust and not sensitive to any single study. Meta-regression did not indicate any significant association for an increase in EF after walnut consumption with dose of treatment, duration of treatment, or baseline EF. CONCLUSION The available evidence from RCTs suggests there may be a clinically relevant effect of walnut consumption on EF.
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Cury MFR, Olivares EQ, Garcias RC, Toledo GQ, Anselmo NA, Paskakulis LC, Botelho FFR, Carvalho NZ, Silva AAD, Agren C, Carlos CP. Inflammation and kidney injury attenuated by prior intake of Brazil nuts in the process of ischemia and reperfusion. ACTA ACUST UNITED AC 2018; 40:312-318. [PMID: 30118536 PMCID: PMC6533994 DOI: 10.1590/2175-8239-jbn-2018-0016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 06/11/2018] [Indexed: 12/13/2022]
Abstract
Introduction: Ischemia and reperfusion (IR) is a process inherent to the procedures
involved in the transplantation of organs that causes inflammation, cell
death and cell injury, and may lead to rejection of the graft. It is
possible that the anti-inflammatory properties of the Brazil nuts (BN) can
mitigate the renal injury caused by IR. Objective: To investigate whether the previous intake of BN reduces the expression of
markers of inflammation, injury, and cell death after renal IR. Methods: Male Wistar rats were distributed into six groups (N = 6/group): SHAM
(control), SHAM treated with 75 or 150 mg of BN, IR, and IR treated with 75
or 150 mg of BN. The IR procedure consisted of right nephrectomy and
occlusion of the left renal artery with a non-traumatic vascular clamp for
30 min. BN was given daily from day 1 to 7 before surgery (SHAM or IR), and
maintained until sacrifice (48 h after surgery). Inflammation was evaluated
by renal expression of COX-2 and TGF-β, injury by the expression of
vimentin, and cell death by apoptosis through caspase-3 expression
(immunohistochemistry). Results: Pretreatment with 75 mg of BN reduced renal expression of the COX-2, TGF-β,
vimentin, and caspase-3. The dose of 150 mg caused increased expression of
COX-2. Conclusion: In experimental IR, the damage can be minimized with a prior low-dose intake
of BN, improving inflammation, injury, and cell death.
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Affiliation(s)
| | - Estéfany Queiroz Olivares
- Laboratório de Pesquisa Experimental, FACERES Faculdade de Medicina, São José do Rio Preto, SP, Brasil
| | - Renata Correia Garcias
- Laboratório de Pesquisa Experimental, FACERES Faculdade de Medicina, São José do Rio Preto, SP, Brasil
| | - Giovana Queda Toledo
- Laboratório de Pesquisa Experimental, FACERES Faculdade de Medicina, São José do Rio Preto, SP, Brasil
| | - Natassia Alberici Anselmo
- Laboratório de Pesquisa Experimental, FACERES Faculdade de Medicina, São José do Rio Preto, SP, Brasil
| | | | | | - Natiele Zanardo Carvalho
- Laboratório de Pesquisa Experimental, FACERES Faculdade de Medicina, São José do Rio Preto, SP, Brasil
| | - Analice Andreoli da Silva
- Laboratório de Pesquisa Experimental, FACERES Faculdade de Medicina, São José do Rio Preto, SP, Brasil
| | - Camila Agren
- Laboratório de Pesquisa Experimental, FACERES Faculdade de Medicina, São José do Rio Preto, SP, Brasil
| | - Carla Patrícia Carlos
- Laboratório de Pesquisa Experimental, FACERES Faculdade de Medicina, São José do Rio Preto, SP, Brasil
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Deon V, Del Bo' C, Guaraldi F, Abello F, Belviso S, Porrini M, Riso P, Guardamagna O. Effect of hazelnut on serum lipid profile and fatty acid composition of erythrocyte phospholipids in children and adolescents with primary hyperlipidemia: A randomized controlled trial. Clin Nutr 2018; 37:1193-1201. [DOI: 10.1016/j.clnu.2017.05.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 05/08/2017] [Accepted: 05/21/2017] [Indexed: 12/15/2022]
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Anselmo NA, Paskakulis LC, Garcias RC, Botelho FFR, Toledo GQ, Cury MFR, Carvalho NZ, Mendes GEF, Iembo T, Bizotto TSG, Cury PM, Chies AB, Carlos CP. Prior intake of Brazil nuts attenuates renal injury induced by ischemia and reperfusion. ACTA ACUST UNITED AC 2018; 40:10-17. [PMID: 29796584 PMCID: PMC6533976 DOI: 10.1590/1678-46a85-jbn-3819] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/30/2017] [Indexed: 12/13/2022]
Abstract
Introduction: Ischemia-reperfusion (IR) injury results from inflammation and oxidative
stress, among other factors. Because of its anti-inflammatory and
antioxidant properties, the Brazil nut (BN) might attenuate IR renal
injury. Objective: The aim of the present study was to investigate whether the intake of BN
prevents or reduces IR kidney injury and inflammation, improving renal
function and decreasing oxidative stress. Methods: Male Wistar rats were distributed into six groups (N=6/group): SHAM
(control), SHAM treated with 75 or 150 mg of BN, IR, and IR treated with 75
or 150 mg of BN. The IR procedure consisted of right nephrectomy and
occlusion of the left renal artery with a non-traumatic vascular clamp for
30 min. BN was given daily and individually for 7 days before surgery (SHAM
or IR) and maintained until animal sacrifice (48h after surgery). We
evaluated the following parameters: plasma creatinine, urea, and phosphorus;
proteinuria, urinary output, and creatinine clearance; plasmatic TBARS and
TEAC; kidney expression of iNOS and nitrotyrosine, and macrophage
influx. Results: Pre-treatment with 75 mg of BN attenuated IR-induced renal changes, with
elevation of creatinine clearance and urinary output, reducing proteinuria,
urea, and plasmatic phosphorus as well as reducing kidney expression of
iNOS, nitrotyrosine, and macrophage influx. Conclusion: Low intake of BN prior to IR-induced kidney injury improves renal function by
inhibition of macrophage infiltration and oxidative stress.
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Affiliation(s)
- Natassia Alberici Anselmo
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Leticia Colombo Paskakulis
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Renata Correia Garcias
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Fernanda Fortuci Resende Botelho
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Giovana Queda Toledo
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Maria Fernanda Ribeiro Cury
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Natiele Zanardo Carvalho
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Glória Elisa Florido Mendes
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Tatiane Iembo
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Thaís Santana Gastardelo Bizotto
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Patricia Maluf Cury
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
| | - Agnaldo Bruno Chies
- Faculdade de Medicina de Marília, Laboratório de Farmacologia, Marília, SP, Brasil
| | - Carla Patrícia Carlos
- Faculdade de Medicina de São José do Rio Preto - FACERES, Laboratório de Pesquisa Experimental, São José do Rio Preto, SP, Brasil
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Effect of short-term hazelnut consumption on DNA damage and oxidized LDL in children and adolescents with primary hyperlipidemia: a randomized controlled trial. J Nutr Biochem 2018; 57:206-211. [PMID: 29753234 DOI: 10.1016/j.jnutbio.2018.03.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 02/19/2018] [Accepted: 03/08/2018] [Indexed: 11/24/2022]
Abstract
Children with primary hyperlipidemia are prone to develop premature atherosclerosis, possibly associated with increased oxidative stress. Nutritional therapy is the primary strategy in the treatment of hyperlipidemia and associated conditions. Dietary interventions with bioactive-rich foods, such as nuts, may contribute to the modulation of both lipid profile and the oxidative/antioxidant status. Our study aimed to assess the impact of a dietary intervention with hazelnuts on selected oxidative stress markers in children and adolescents with primary hyperlipidemia. A single-blind, 8-week, randomized, controlled, three-arm, parallel-group study was performed. Children and adolescents diagnosed with primary hyperlipidemia (n=60) received dietary guidelines and were randomized into three groups: group 1 received hazelnuts with skin (HZN+S), and group 2 hazelnuts without skin (HZN-S), at equivalent doses (15-30 g/day, based on body weight); group 3 (controls) received only dietary recommendations (no nuts). At baseline and after 8 weeks, plasma oxidized low-density lipoprotein (ox-LDL) concentrations, oxidative levels of DNA damage in PBMCs and potential correlation with changes in serum lipids were examined. A reduction of endogenous DNA damage by 18.9%±51.3% (P=.002) and 23.1%±47.9% (P=.007) was observed after HZN+S and HZN-S, respectively. Oxidatively induced DNA strand breaks decreased by 16.0%±38.2% (P=.02) following HZN+S treatment. Ox-LDL levels did not change after HZN+S intervention but positively correlated with total cholesterol and LDL cholesterol. A short-term hazelnut intervention improves cell DNA protection and resistance against oxidative stress but not ox-LDL in hyperlipidemic pediatric patients. The trial was registered at ISRCTN.com, ID no. ISRCTN12261900.
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Cardoso BR, Duarte GBS, Reis BZ, Cozzolino SMF. Brazil nuts: Nutritional composition, health benefits and safety aspects. Food Res Int 2017; 100:9-18. [PMID: 28888463 DOI: 10.1016/j.foodres.2017.08.036] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 08/11/2017] [Accepted: 08/13/2017] [Indexed: 12/15/2022]
Abstract
Brazil nuts are among the richest selenium food sources, and studies have considered this Amazonian nut as an alternative for selenium supplementation. Besides selenium, Brazil nuts present relevant content of other micronutrients such as magnesium, copper, and zinc. The nutritional composition of nuts, also characterized by adequate fatty acid profile and high content of protein and bioactive compounds, has many health benefits. In the present review, we examine the nutritional composition of Brazil nuts, comparing it with other nuts, and describe the relevance of possible contaminants and metal toxicants observed in this nut for human health. Furthermore, we report different trials available in the literature, which demonstrate positive outcomes such as modulation of the lipid serum profile, enhancement of the antioxidant system and improvement of anti-inflammatory response. These effects have been assessed under different conditions, such as cognitive impairment, dyslipidemia, cancer, and renal failure.
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Affiliation(s)
- Bárbara R Cardoso
- Nutrition and Minerals Laboratory, Dept. of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil; The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia.
| | - Graziela B Silva Duarte
- Nutrition and Minerals Laboratory, Dept. of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
| | - Bruna Z Reis
- Nutrition and Minerals Laboratory, Dept. of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
| | - Silvia M F Cozzolino
- Nutrition and Minerals Laboratory, Dept. of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
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SEPP1 polymorphisms modulate serum glucose and lipid response to Brazil nut supplementation. Eur J Nutr 2017; 57:1873-1882. [DOI: 10.1007/s00394-017-1470-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 05/06/2017] [Indexed: 11/26/2022]
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Albuquerque MNDL, Diniz ADS, Arruda IKGD. Elevated Serum Retinol and Low Beta-Carotene but not Alpha-Tocopherol Concentrations Are Associated with Dyslipidemia in Brazilian Adolescents. J Nutr Sci Vitaminol (Tokyo) 2017; 62:73-80. [PMID: 27264090 DOI: 10.3177/jnsv.62.73] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The purpose of this study was to investigate the status of retinol, beta-carotene, and alpha-tocopherol serum concentrations in adolescents with dyslipidemia. A case series dyslipidemia study was conducted, with an attached control group, including 104 adolescents of public schools in Recife during the months of March/April 2013. Retinol, beta-carotene and alpha-tocopherol serum concentrations were analysed by high efficiency liquid chromatography. Sociodemographic, anthropometric, clinical and biochemical variables were analysed. Dyslipidemic adolescents had high serum concentrations of both retinol (p=0.007) and beta-carotene/apolipoprotein A-I ratio (p=0.034); they also had low concentrations of beta-carotene/total cholesterol (p<0.0001) and beta-carotene/apolipoprotein B ratios (p=0.033) when compared to the controls. The alpha-tocopherol serum status was not associated with dyslipidemia. Overweight, abdominal obesity, lipid profile markers, and systolic and diastolic blood pressures were more prevalent in dyslipidemic adolescents. The findings show an association between vitamin A and dyslipidemia in adolescents. However, additional investigations of this risk group are necessary to clarify the mechanisms of action of this nutrient in the pathogenesis of this syndrome, aiming at reducing cardiometabolic risks as of earlier ages.
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Dynamic nailfold videocapillaroscopy may be used for early detection of microvascular dysfunction in obesity. Microvasc Res 2016; 106:31-5. [DOI: 10.1016/j.mvr.2016.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 02/21/2016] [Accepted: 03/07/2016] [Indexed: 01/10/2023]
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Marques-Neto SR, Castiglione RC, Pontes A, Oliveira DF, Ferraz EB, Nascimento JHM, Bouskela E. Effects of Incretin-Based Therapies on Neuro-Cardiovascular Dynamic Changes Induced by High Fat Diet in Rats. PLoS One 2016; 11:e0148402. [PMID: 26828649 PMCID: PMC4735118 DOI: 10.1371/journal.pone.0148402] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Accepted: 01/18/2016] [Indexed: 11/18/2022] Open
Abstract
Background and Aims Obesity promotes cardiac and cerebral microcirculatory dysfunction that could be improved by incretin-based therapies. However, the effects of this class of compounds on neuro-cardiovascular system damage induced by high fat diet remain unclear. The aim of this study was to investigate the effects of incretin-based therapies on neuro-cardiovascular dysfunction induced by high fat diet in Wistar rats. Methods and Results We have evaluated fasting glucose levels and insulin resistance, heart rate variability quantified on time and frequency domains, cerebral microcirculation by intravital microscopy, mean arterial blood pressure, ventricular function and mitochondrial swelling. High fat diet worsened biometric and metabolic parameters and promoted deleterious effects on autonomic, myocardial and haemodynamic parameters, decreased capillary diameters and increased functional capillary density in the brain. Biometric and metabolic parameters were better improved by glucagon like peptide-1 (GLP-1) compared with dipeptdyl peptidase-4 (DPP-4) inhibitor. On the other hand, both GLP-1 agonist and DPP-4 inhibitor reversed the deleterious effects of high fat diet on autonomic, myocardial, haemodynamic and cerebral microvascular parameters. GLP-1 agonist and DPP-4 inhibitor therapy also increased mitochondrial permeability transition pore resistance in brain and heart tissues of rats subjected to high fat diet. Conclusion Incretin-based therapies improve deleterious cardiovascular effects induced by high fat diet and may have important contributions on the interplay between neuro-cardiovascular dynamic controls through mitochondrial dysfunction associated to metabolic disorders.
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Affiliation(s)
- Silvio Rodrigues Marques-Neto
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- * E-mail:
| | - Raquel Carvalho Castiglione
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Aiza Pontes
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Dahienne Ferreira Oliveira
- Cardiac Electrophysiology Laboratory, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Emanuelle Baptista Ferraz
- Cardiac Electrophysiology Laboratory, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - José Hamilton Matheus Nascimento
- Cardiac Electrophysiology Laboratory, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Eliete Bouskela
- Laboratory for Clinical and Experimental Research on Vascular Biology (BioVasc), Biomedical Center, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Huguenin GV, Moreira AS, Siant'Pierre TD, Gonçalves RA, Rosa G, Oliveira GM, Luiz RR, Tibirica E. Effects of Dietary Supplementation with Brazil Nuts on Microvascular Endothelial Function in Hypertensive and Dyslipidemic Patients: A Randomized Crossover Placebo-Controlled Trial. Microcirculation 2015. [DOI: 10.1111/micc.12225] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Grazielle V.B. Huguenin
- Institute of the Heart Edson Saad; Federal University of Rio de Janeiro (UFRJ); Rio de Janeiro Brazil
| | - Annie S.B. Moreira
- Department of Clinical Research; National Institute of Cardiology (INC); Rio de Janeiro Brazil
| | - Tatiana D. Siant'Pierre
- Chemistry Department; Pontifical Catholic University of Rio de Janeiro (PUC-Rio); Rio de Janeiro Brazil
| | - Rodrigo A. Gonçalves
- Chemistry Department; Pontifical Catholic University of Rio de Janeiro (PUC-Rio); Rio de Janeiro Brazil
| | - Glorimar Rosa
- Institute of the Heart Edson Saad; Federal University of Rio de Janeiro (UFRJ); Rio de Janeiro Brazil
| | - Glaucia M.M. Oliveira
- Institute of the Heart Edson Saad; Federal University of Rio de Janeiro (UFRJ); Rio de Janeiro Brazil
| | - Ronir R. Luiz
- Institute of the Heart Edson Saad; Federal University of Rio de Janeiro (UFRJ); Rio de Janeiro Brazil
| | - Eduardo Tibirica
- Department of Clinical Research; National Institute of Cardiology (INC); Rio de Janeiro Brazil
- Laboratory of Cardiovascular Investigation; Oswaldo Cruz Institute (IOC); Rio de Janeiro Brazil
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Martin N, Germanò R, Hartley L, Adler AJ, Rees K. Nut consumption for the primary prevention of cardiovascular disease. Cochrane Database Syst Rev 2015; 2015:CD011583. [PMID: 26411417 PMCID: PMC9798256 DOI: 10.1002/14651858.cd011583.pub2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Nuts contain a number of nutritional attributes which may be cardioprotective. A number of epidemiological studies have shown that nut consumption may have a beneficial effect on people who have cardiovascular disease (CVD) risk factors. However, results from randomised controlled trials (RCTs) are less consistent. OBJECTIVES To determine the effectiveness of nut consumption for the primary prevention of CVD. SEARCH METHODS We searched the following electronic databases: the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, Web of Science Core Collection, CINAHL, Database of Abstracts of Reviews of Effects (DARE), Health Technology Assessment Database (HTA) and Health Economics Evaluations Database (HEED) up to 30 July 2015. We searched trial registers and reference lists of reviews for further studies. We did not apply any language restrictions. SELECTION CRITERIA We included RCTs of dietary advice to increase nut consumption or provision of nuts to increase consumption lasting at least three months and including healthy adults or adults at moderate and high risk of CVD. The comparison group was no intervention or minimal intervention. The outcomes of interest were CVD clinical events and CVD risk factors. DATA COLLECTION AND ANALYSIS Two review authors independently selected trials for inclusion, abstracted the data and assessed the risk of bias in included trials. MAIN RESULTS We included five trials (435 participants randomised) and one ongoing trial. One study is awaiting classification. All trials examined the provision of nuts to increase consumption rather than dietary advice. None of the included trials reported on the primary outcomes, CVD clinical events, but trials were small and short term. All five trials reported on CVD risk factors. Four of these trials provided data in a useable format for meta-analyses, but heterogeneity precluded meta-analysis for most of the analyses. Overall trials were judged to be at unclear risk of bias.There were variable and inconsistent effects of nut consumption on CVD risk factors (lipid levels and blood pressure). Three trials monitored adverse events. One trial reported an allergic reaction to nuts and three trials reported no significant weight gain with increased nut consumption. None of the included trials reported on other secondary outcomes, occurrence of type 2 diabetes as a major risk factor for CVD, health-related quality of life and costs. AUTHORS' CONCLUSIONS Currently there is a lack of evidence for the effects of nut consumption on CVD clinical events in primary prevention and very limited evidence for the effects on CVD risk factors. No conclusions can be drawn and further high quality longer term and adequately powered trials are needed to answer the review question.
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Affiliation(s)
- Nicole Martin
- University College LondonFarr Institute of Health Informatics Research222 Euston RoadLondonUKNW1 2DA
| | - Roberta Germanò
- University of Naples Federico IIDivision of Nutrition, Department of Clinical Medicine and SurgeryNaplesItaly
| | - Louise Hartley
- Warwick Medical School, University of WarwickDivision of Health SciencesCoventryWarwickshireUKCV4 7AL
| | - Alma J Adler
- London School of Hygiene & Tropical MedicineDepartment of Non‐communicable Disease EpidemiologyKeppel StreetLondonUKWC1E 7HT
| | - Karen Rees
- Warwick Medical School, University of WarwickDivision of Health SciencesCoventryWarwickshireUKCV4 7AL
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Carvalho RF, Huguenin GVB, Luiz RR, Moreira ASB, Oliveira GMM, Rosa G. Intake of partially defatted Brazil nut flour reduces serum cholesterol in hypercholesterolemic patients--a randomized controlled trial. Nutr J 2015; 14:59. [PMID: 26077768 PMCID: PMC4488974 DOI: 10.1186/s12937-015-0036-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 05/01/2015] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Thyroid hormones can lower levels of atherogenic lipoproteins, and selenium is important in thyroid hormone homeostasis. We aimed to investigate the effects of a healthy diet associated with the Brazil nut (Bertholletia excelsa) in dyslipidemic and hypertensive patients. METHODS This study was a randomized, placebo-controlled, double-blind trial. Seventy-seven dyslipidemic and hypertensive patients already receiving lipid-lowering drugs received either a dietary treatment associated with partially defatted Brazil nut flour (13 g/day providing 227,5 μg of selenium/day),or with dyed cassava flour as a placebo. All patients received a personalized dietary guideline with nutritional recommendations for dyslipidemia and hypertension and were followed for 90 days. RESULTS The Brazil nut group showed reductions in total cholesterol (-20.5 ± 61.2 mg/dL, P = 0.02), non HDL-cholesterol (-19.5 ± 61.2 mg/dL, P = 0.02) and Apo A-1 (-10.2 ± 26.7 mg/dL, P = 0.03) without significant alterations in the Apo B/Apo A-1 ratio. The placebo group showed a reduction in FT3 levels (-0.1 ± 0.4, P = 0.03) and increased Lp(a) levels (5.9 ± 18.0 mg/dL, P = 0.02). There were no statistical differences in blood pressure and serum lipids between Brazil nut and placebo group. CONCLUSIONS Supplementation with Brazil nuts seems to favor the maintenance of FT3 levels and contributes to lipemia reduction in hypercholesterolemic and euthyroid patients. TRIAL REGISTRATION ClinicalTrials.gov Identifier NCT01990391.
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Affiliation(s)
- Roberta F Carvalho
- Post Graduate Program, Federal Universityof Rio de Janeiro, Professor Rodolpho Paulo Rocco St, 225, Rio de Janeiro, Brazil.
| | - Grazielle V B Huguenin
- Post Graduate Program, Federal Universityof Rio de Janeiro, Professor Rodolpho Paulo Rocco St, 225, Rio de Janeiro, Brazil.
| | - Ronir R Luiz
- Institute of Public Health Studies, Federal Universityof Rio de Janeiro, Jorge Machado Moreira Square, 100, Rio de Janeiro, Brazil.
| | - Annie S B Moreira
- ClinicofAtherosclerosisand Cardiovascular DiseasePrevention, National Cardiology Institute, Laranjeiras St, 374, Rio de Janeiro, Brazil.
| | - Glaucia M M Oliveira
- Post Graduate Program, Federal Universityof Rio de Janeiro, Professor Rodolpho Paulo Rocco St, 225, Rio de Janeiro, Brazil.
| | - Glorimar Rosa
- Post Graduate Program, Federal Universityof Rio de Janeiro, Professor Rodolpho Paulo Rocco St, 225, Rio de Janeiro, Brazil.
- Nutrition and Dietetic Department, Josué de Castro Institute of Nutrition, Federal Universityof Rio de Janeiro, 373, 2nd floor, block J, Carlos Chagas FilhoAv, Ilha do Governador, 21941-902, Rio de Janeiro, Brazil.
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Huguenin GVB, Oliveira GMM, Moreira ASB, Saint'Pierre TD, Gonçalves RA, Pinheiro-Mulder AR, Teodoro AJ, Luiz RR, Rosa G. Improvement of antioxidant status after Brazil nut intake in hypertensive and dyslipidemic subjects. Nutr J 2015; 14:54. [PMID: 26022214 PMCID: PMC4477321 DOI: 10.1186/s12937-015-0043-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 11/20/2014] [Accepted: 05/18/2015] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES To investigate the effect of partially defatted Granulated Brazil nut (GBN) on biomarkers of oxidative stress and antioxidant status of hypertensive and dyslipidemic patients on nutrition and drug approaches. METHODS Ninety one hypertensive and dyslipidemic subjects of both genders (51.6 % men), mean age 62.1 ± 9.3 years, performed a randomized crossover trial, double-blind, placebo controlled. Subjects received a diet and partially defatted GBN 13 g per day (≈227.5 μg/day of selenium) or placebo for twelve weeks with four-week washout interval. Anthropometric, laboratory and clinic characteristics were investigated at baseline. Plasma selenium (Se), plasma glutathione peroxidase (GPx3) activity, total antioxidant capacity (TAC), 8-epi PGF2α and oxidized LDL were evaluated at the beginning and in the end of each intervention. RESULTS GBN intake significantly increased plasma Se from 87.0 ± 16.8 to 180.6 ± 67.1 μg/L, increased GPx3 activity in 24,8% (from 112.66 ± 40.09 to 128.32 ± 38.31 nmol/min/mL, p < 0,05), and reduced 3.25% of oxidized-LDL levels (from 66.31 ± 23.59 to 60.68 ± 20.88 U/L, p < 0.05). An inverse association between GPx3 and oxidized LDL levels was observed after supplementation with GBN by simple model (β -0.232, p = 0.032) and after adjustment for gender, age, diabetes and BMI (β -0.298, p = 0.008). There wasn't association between GPx3 and 8-epi PGF2α (β -0.209, p = 0.052) by simple model. CONCLUSION The partially defatted GBN intake has a potential benefit to increase plasma selenium, increase enzymatic antioxidant activity of GPx3 and to reduction oxidation in LDL in hypertensive and dyslipidemic patients. TRIAL REGISTRATION ClinicalTrials.gov Identifier NCT01990391; November 20, 2013.
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Affiliation(s)
- Grazielle V B Huguenin
- Institute of Heart Edson Saad, Federal Universityof Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
| | - Glaucia M M Oliveira
- Institute of Heart Edson Saad, Federal Universityof Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
| | - Annie S B Moreira
- Clinic of Atherosclerosis and Cardiovascular Disease Prevention, National Institute of Cardiology (INC), Rio de Janeiro, Brazil.
| | - Tatiana D Saint'Pierre
- Chemistry Department, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil.
| | - Rodrigo A Gonçalves
- Chemistry Department, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil.
| | - Alessandra R Pinheiro-Mulder
- Nutritional Biochemistry Laboratory, Federal University of Rio de Janeiro State (UNIRIO), Rio de Janeiro, Brazil.
| | - Anderson J Teodoro
- Nutritional Biochemistry Laboratory, Federal University of Rio de Janeiro State (UNIRIO), Rio de Janeiro, Brazil.
| | - Ronir R Luiz
- Institute of Heart Edson Saad, Federal Universityof Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
| | - Glorimar Rosa
- Institute of Heart Edson Saad, Federal Universityof Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
- Departamento de Nutrição e Dietética, Instituto de Nutrição Josué de Castro - Cidade Universitária - Ilha do Fundão, Av. Carlos Chagas Filho, 373, Prédio do Centro de Ciências da Saúde, Bloco J, 2° andar, sala 25, CEP: 21941-902, Rio de Janeiro, Brazil.
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Abstract
Nuts are rich in many nutrients that can benefit multiple cardiometabolic functions, including arterial compliance, blood pressure, inflammation, glucoregulation and endothelial vasodilatation. Impaired vasodilatation may contribute to impaired cognitive performance due to poor cerebral perfusion. The present narrative review examines associations between nut consumption, vascular health and cognitive function. It includes a systematic search which identified seventy-one epidemiological or intervention studies in which effects of chronic nut consumption on blood pressure, glucoregulation, endothelial vasodilator function, arterial compliance, inflammatory biomarkers and cognitive performance were evaluated. Weighted mean changes were estimated where data were available; they indicate that nut consumption reduces blood pressure and improves glucoregulation, endothelial vasodilator function and inflammation, whilst a limited number of studies suggest that nut consumption may also improve cognitive performance. Further clinical trials are warranted to explore relationships between nut consumption, endothelial function and cognitive function.
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