28 research outputs found

    Urinary Nitric Oxide levels are associated with blood pressure, fruit and vegetable intake and total polyphenol excretion in adolescents from the SI! Program

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    first_pagesettingsOrder Article Reprints Open AccessArticle Urinary Nitric Oxide Levels Are Associated with Blood Pressure, Fruit and Vegetable Intake and Total Polyphenol Excretion in Adolescents from the SI! Program by Sonia L. Ramírez-Garza 1ORCID,Emily P. Laveriano-Santos 1,2ORCID,Camila Arancibia-Riveros 1,Jose C. Carrasco-Jimenez 3,Patricia Bodega 4,5ORCID,Amaya de Cos-Gandoy 4,5ORCID,Mercedes de Miguel 4,5,Gloria Santos-Beneit 4,6,Juan Miguel Fernández-Alvira 5ORCID,Rodrigo Fernández-Jiménez 5,7,8,Jesús Martínez-Gómez 5ORCID,Ramón Estruch 2,9ORCID,Rosa M. Lamuela-Raventós 1,2ORCID andAnna Tresserra-Rimbau 1,2,*ORCID 1 Departament de Nutrició, Ciències de l’Alimentació i Gastronomia, Xarxa d’Innovació Alimentària (XIA), Facultat de Farmàcia i Ciències de l’Alimentació, Institut de Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain 2 Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), 28220 Madrid, Spain 3 Barcelona Supercomputing Center (BSC), 08034 Barcelona, Spain 4 Foundation for Science, Health and Education (SHE), 08008 Barcelona, Spain 5 Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain 6 The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA 7 Hospital Universitario Clinico San Carlos, 28040 Madrid, Spain 8 Centro de Investigación Biomédica en Red en Enfermedades CardioVasculares (CIBERCV), 28029 Madrid, Spain 9 Department of Internal Medicine, Hospital Clínic, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, 08036 Barcelona, Spain * Author to whom correspondence should be addressed. Antioxidants 2022, 11(11), 2140; https://doi.org/10.3390/antiox11112140 Received: 4 October 2022 / Revised: 21 October 2022 / Accepted: 25 October 2022 / Published: 28 October 2022 (This article belongs to the Special Issue Dietary Antioxidants and Cardiovascular Health) Download Browse Figures Review Reports Versions Notes Abstract Nitric oxide (NO) is important to cardiovascular health (CVH), and its bioavailability could be regulated by the antioxidant effect of polyphenols, improving endothelial function and consequently blood pressure (BP). However, scant research has been carried out on NO and CVH correlates in adolescent populations. Therefore, our aim was to investigate the association between NO and the CVH status and other health factors in adolescents. NO, total polyphenol excretion (TPE), anthropometric measurements, BP, blood lipid profile, blood glucose, diet, physical activity, and smoking status were recorded, while CVH score was classified as ideal, intermediate, and poor. Negative associations were observed between NO and body mass index, body fat percentage, BP, and triglycerides; and positive associations between NO and skeletal muscle percentage, HDL-cholesterol, fruit and vegetable intake, and TPE was observed. To capture more complex interactions among different factors, multiple linear regression was performed, obtaining a significant association between NO and fruit and vegetable intake (β = 0.175), TPE (β = 0.225), and systolic BP (β = −0.235). We conclude that urinary NO levels are positively associated with the consumption of fruits and vegetables rich in antioxidants such as polyphenols and negatively associated with systolic BP.Peer Reviewed"Article signat per 14 autors/es:" Sonia L. Ramírez-Garza, Emily P. Laveriano-Santos, Camila Arancibia-Riveros, Jose C. Carrasco-Jimenez, Patricia Bodega, Amaya de Cos-Gandoy, Mercedes de Miguel, Gloria Santos-Beneit, Juan Miguel Fernández-Alvira,Rodrigo Fernández-Jiménez,Jesús Martínez-Gómez, Ramón Estruch, Rosa M. Lamuela-Raventós, and Anna Tresserra-Rimbau"Postprint (published version

    Microbial Phenolic Metabolites: Which Molecules Actually Have an Effect on Human Health?

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    The role of gut microbiota in human health has been investigated extensively in recent years. The association of dysbiosis, detrimental changes in the colonic population, with several health conditions has led to the development of pro-, pre- and symbiotic foods. If not absorbed in the small intestine or secreted in bile, polyphenols and other food components can reach the large intestine where they are susceptible to modification by the microbial population, resulting in molecules with potentially beneficial health effects. This review provides an overview of studies that have detected and/or quantified microbial phenolic metabolites using high-performance liquid chromatography as the separation technique, followed by detection through mass spectrometry. Both in vitro experimental studies and human clinical trials are covered. Although many of the microbial phenolic metabolites (MPM) reported in in vitro studies were identified in human samples, further research is needed to associate them with clinical health outcomes

    Proven traceability strategies using chemometrics for organic food authenticity 

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    Background: risk of fraudulent mislabeling of organic food, driven by higher prices and a more favorable consumer perception, underscores the necessity for accurate authentication of organic products. Different analytical approaches and statistical analysis have been developed to classify between organic and conventional food. Scope and approach: In this review the current analytical approaches to detect organic food mislabeling are described. Potential and validated markers of organic traceability are explained, together with the techniques and statistical analysis employed. In this article, all the different foods have been reviewed and are presented by type of food. Key findings and conclusions: Variations in the elemental and stable isotopic ratios of fertilizers lead to differences in plant food ratios. In the case of animal food products, the distinct ratio in organic results in a final product with a unique elemental and stable isotopic composition. Those could be used for authenticating organic food. In addition, the different fertilization promotes different metabolic pathways leaving a distinct metabolic signature, hence targeted and untargeted metabolomic analysis permits the traceability of organic food. Finally, the use of soft classification models such as SIMCA, PLS-DA or OPLS-DA permits the classification of organic food and enables prediction of whether a new sample is conventional or organic.

    Exploring the Impact of In Vitro Gastrointestinal Digestion in the Bioaccessibility of Phenolic-Rich Chestnut Shells: A Preliminary Study

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    Chestnut shells (CS), the principal by-product of the chestnut processing industry, contain high concentrations of flavonoids and other polyphenols with huge interest for the nutraceuticals field. Nonetheless, the bioaccessibility and bioactivity of phytochemicals can be influenced by their digestibility, making it imperative to evaluate these activities prior to application of CS as a nutraceutical ingredient. This work aims to appraise the effects of in vitro simulated gastrointestinal digestion on the bioaccessibility, bioactivity, and metabolic profiling of CS. An increase in the total phenolic and flavonoid contents, antioxidant/antiradical properties, radical scavenging capacity, and inhibition on acetylcholinesterase activity was evidenced during in vitro simulated digestion. Metabolomic profiling by LC-ESI-LTQ-Orbitrap-MS revealed changes during the simulated digestion, particularly in phenolic compounds (46% of total compounds annotated), lipids (22%), phenylpropanoids (9%), organic acids (7%), carbohydrates (5%), nucleosides (5%), amino acids (4%), and alcohols (1%). Phenolic acids (gallic acid, syringic acid, and hydroxyphenylacetic acid) and flavonoids (epicatechin) were the major polyphenolic classes identified. The heatmap-positive correlations highlighted that the bioactivity of CS is closely related to the phenolic compounds and their bioaccessibility. These findings suggest the reuse of CS as a potential nutraceutical ingredient with antioxidant and neuroprotective effects, encouraging the use of appropriate extraction and/or encapsulation techniques to enhance the bioaccessibility of phenolic compounds. © 2023 by the authors.</p

    Rice straw as a valuable source of cellulose and polyphenols: Applications in the food industry

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    Background: Rice plants generate a large amount of straw after harvesting, which is currently managed mainly by incineration or used as animal bedding, animal fodder or wrapping of materials during transport. Other technological uses, such as the production of energy and biofuels, pulp and paper production or construction materials have also been described. However, due to the current European Union (EU) restrictions, alternatives for waste management must be sought. Valorisation of rice straw is aligned with the Sustainable Development Goals agenda set by the EU, since interesting biocompounds have been described in their composition and, after a successful extraction and purification, they can be used in various sectors. Scope and approach: This review gathers the most relevant works related to the valorisation of rice straw. It focuses on polyphenolic extracts and cellulose derivatives obtained by different extraction techniques, either conventional or innovative. In addition, the different applications that these compounds have in the field of food and nutrition sciences are summarized. Key findings and conclusions: Polyphenols and cellulose fractions have shown their viability to be extracted from rice straw, showing great potential as antioxidants in the food sector or as nutritional components in the development of new food or packaging materials, respectively. In conclusion, the valorisation of rice straw as a rich source of valuable compounds has been demonstrated, which currently generates serious environmental and human problems due to difficulties in its management and incineration, adding value to these underutilized residues and contributing to the circular bioeconomy concept

    Health Effects of Resveratrol: Results from Human Intervention Trials

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    The effect of resveratrol (RV) intake has been reviewed in several studies performed in humans with different health status. The purpose of this review is to summarize the results of clinical trials of the last decade, in which RV was determined in biological samples such as human plasma, urine, and feces. The topics covered include RV bioavailability, pharmacokinetics, effects on cardiovascular diseases, cognitive diseases, cancer, type 2 diabetes (T2D), oxidative stress, and inflammation states. The overview of the recent research reveals a clear tendency to identify RV in plasma, showing that its supplementation is safe. Furthermore, RV bioavailability depends on several factors such as dose, associated food matrix, or time of ingestion. Notably, enterohepatic recirculation of RV has been observed, and RV is largely excreted in the urine within the first four hours after consumption. Much of the research on RV in the last 10 years has focused on its effects on pathologies related to oxidative stress, inflammatory biomarkers, T2D, cardiovascular diseases, and neurological disease

    Sweet Potato Is Not Simply an Abundant Food Crop: A Comprehensive Review of Its Phytochemical Constituents, Biological Activities, and the Effects of Processing

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    Nowadays, sweet potato (Ipomoea batata L.; Lam.) is considered a very interesting nutritive food because it is rich in complex carbohydrates, but as a tubercle, contains high amounts of healthpromoting secondary metabolites. The aim of this review is to summarize the most recently published information on this root vegetable, focusing on its bioactive phytochemical constituents, potential effects on health, and the impact of processing technologies. Sweet potato is considered an excellent source of dietary carotenoids, and polysaccharides, whose health benefits include antioxidant, antiinflammatory and hepatoprotective activity, cardiovascular protection, anticancer properties and improvement in neurological and memory capacity, metabolic disorders, and intestinal barrier function. Moreover, the purple sweet potato, due to its high anthocyanin content, represents a unique food option for consumers, as well as a potential source of functional ingredients for healthy food products. In this context, the effects of commercial processing and domestic cooking techniques on sweet potato bioactive compounds require further study to understand how to minimize their loss

    Unlocking the potential of olive residues for functional purposes: update on human intervention trials with health and cosmetic products

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    Olive mill waste (OMW) is a promising source of valuable compounds such as polyphenols, terpenes, sterols, and other bioactivecompounds, which are of interest to the pharmaceuticals and cosmeceutical industries. This review examines the potential ofOMW extracts for health and beauty applications based on evidence reports from human clinical trials. The results achievedto date indicate health-enhancing properties, but little is known about the underlying mechanisms of action, dose–responserelationships, and long-term impacts. Therefore, while olive by-products, extracted using eco-friendly methods, present oppor-tunities for the development of high-value health and cosmetic products, further studies are necessary to determine the fullrange of their effects and establish specific therapeutic strategies

    Moderate Consumption of Beer (with and without Ethanol) and Menopausal Symptoms: Results from a Parallel Clinical Trial in Postmenopausal Women

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    The menopausal transition can be a challenging period for women's health and a trigger of uncomfortable symptoms. Beer is the main food source of isoxanthohumol, a precursor of 8-prenylnaringenin, the strongest phytoestrogen identified to date. As phytoestrogens are reported to reduce perimenopausal symptoms, we evaluated if a daily moderate consumption of beer with (AB) and without alcohol (NAB) could improve menopausal symptoms and modify cardiovascular risk factors. A total of 37 postmenopausal women were enrolled in a parallel controlled intervention trial and assigned to three study groups: 16 were administered AB (330 mL/day), 7 NAB (660 mL/day), and 14 were in the control group. After a 6-month follow-up of the 34 participants who finished the trial, both interventions (AB and NAB) significantly reduced the severity of the menopause-related symptoms (p-value AB vs. Control: 0.009; p-value NAB vs. Control: 0.033). Moreover, AB had a beneficial net effect on psychological menopausal discomforts compared to the control group. As the sex hormone profile did not differ significantly between the study groups, the effects of both types of beers (AB and NAB) are attributed to the non-alcoholic fraction of beer. Furthermore, moderate NAB consumption improved the lipid profile and decreased blood pressure in postmenopausal women. View Full-Text Keywords: phytoestrogens; prenylflavonoids; polyphenols; health; menopause; alcohol; cardiovascular risk factor

    The Effects of Differentiated Organic Fertilization on Tomato Production and Phenolic Content in Traditional and High-Yielding Varieties

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    The challenge of sustainable agriculture is to increase yields and obtain higher quality products. Increased antioxidant compounds such as polyphenols in harvest products may be an added value for sustainable agriculture. The aim of the present study was to investigate whether three organic fertilization treatments with different levels of carbon and nitrogen, i.e., N-rich, N-rich+C, and N-poor+C, affected the phenolic content of different tomato varieties. The examined parameters were productivity, plant nutritional status, δ13C, and tomato phenolic content as an indication of the antioxidant capacity. The best production was obtained with 'Cornabel', a high-yielding Pebroter variety. The total phenolic content was highest in the traditional 'Cuban Pepper' variety regardless of treatment, while naringenin levels were high in all the Pebroter varieties. In N-poor+C fertilized plants, a lower N-NO3 content in leaves was correlated with higher levels of total polyphenols in the fruit. The high-water stress suffered by Montserrat varieties coincided with a low total phenolic content in the tomatoes. In conclusion, organic fertilization with reduced N did not influence the tomato yield but positively affected phenolic compound levels in varieties less sensitive to water stress
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