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      Call for Papers: Preclinical Investigations of Nutrigenetic/Nutrigenomic Targets

      Submit here before January 31, 2025

      About Lifestyle Genomics: 2.0 Impact Factor I 4.0 CiteScore I 0.539 Scimago Journal & Country Rank (SJR)

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      Clinical Outcomes of Dietary Replacement of Saturated Fatty Acids with Unsaturated Fat Sources in Adults with Overweight and Obesity: A Systematic Review and Meta-Analysis of Randomized Control Trials

      meta-analysis

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          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Background: Obesity and dyslipidemia are frequently treated with dietary interventions before pharmacotherapy is given. Diets high in unsaturated fat have proven advantageous to disease treatment. Aims: The purpose of this systematic review and meta-analysis was to assess the evidence of the effect of saturated fatty acids (SFA) replacement with unsaturated fatty acids (UFA) in metabolically healthy adults with overweight and obesity on markers of dyslipidemia and body composition. Methods: Keyword search was performed in PubMed, CINAHL, and Cochrane Library for randomized controlled trials (RCTs) evaluating the effects of fatty acid substitution in adults with overweight and obesity. Meta-analysis was performed on interventions assessing lipoprotein levels and body composition. Publication bias was assessed by funnel plot inspection, Begg's, and Egger's test. Results: Eight RCTs enrolling 663 participants were included in the review, with intervention durations between 4 and 28 weeks. Although nonsignificant ( p = 0.06), meta-analysis found UFA replacement to reduce total cholesterol concentrations by 10.68 mg/dL (95%CI -21.90 to 0.53). Reductions in low-density lipoprotein cholesterol and triglycerides were statistically nonsignificant. Conclusions: Due to null results and a small number of studies included, there is no strong evidence that replacement of SFA with UFA may benefit lipid profiles in this population.

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          Most cited references19

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          Reduction in saturated fat intake for cardiovascular disease.

          Reducing saturated fat reduces serum cholesterol, but effects on other intermediate outcomes may be less clear. Additionally it is unclear whether the energy from saturated fats that are lost in the diet are more helpfully replaced by polyunsaturated fats, monounsaturated fats, carbohydrate or protein. This review is part of a series split from and updating an overarching review.
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            Effects of Dietary Approaches to Stop Hypertension (DASH)-style diet on fatal or nonfatal cardiovascular diseases--incidence: a systematic review and meta-analysis on observational prospective studies.

            Cardiovascular diseases (CVDs) are a group of disorders affecting heart and blood vessels. However, protective roles are proposed for Dietary Approaches to Stop Hypertension (DASH)-style diets. The aim of this review was to summarize and if possible quantify the longitudinal effects of a DASH-style diet on the incidence of CVDs. Pubmed, ISI web of science, and EMBASE were searched and cohort studies that examined the DASH-style diet in relation to CVDs, coronary heart disease (CHD), stroke, and heart failure (HF) were selected. Cohort studies which included participants with specific CVD risk factors like diabetes mellitus, metabolic syndrome, obesity or hypertension were excluded from review. Relative risks (RRs) that were reported for fully adjusted models and their confidence intervals were extracted for meta-analysis. Regarding the adherence to the DASH diet and the incidence of CVDs, stroke, CHD, and HF, only 6 studies met our criteria to be included in this systematic review. Meta-analysis showed that imitating a DASH-like diet can significantly reduce CVDs (RR = 0.80; 95% confidence interval [CI], 0.74-0.86; P < 0.001), CHD (RR = 0.79; 95% CI, 0.71-0.88; P < 0.001), stroke (RR = 0.81, 95% CI, 0.72-0.92; P < 0.001), and HF (RR= 0.71, 95% CI, 0.58-0.88; P < 0.001) risk. A linear and negative association was obtained between DASH-style diet concordance and all CVDs, as well. In conclusion, our results showed that a DASH-like diet can significantly protect against CVDs, CHD, stroke, and HF risk by 20%, 21%, 19% and 29%, respectively. Furthermore, there is a significant reverse linear association between DASH diet consumption and CVDs, CHD, stroke, and HF risk. Copyright © 2013 Elsevier Inc. All rights reserved.
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              Economic analysis of physical activity interventions.

              Numerous interventions have been shown to increase physical activity but have not been ranked by effectiveness or cost. This study provides a systematic review of physical activity interventions and calculates their cost-effectiveness ratios. A systematic literature review was conducted (5579 articles) and 91 effective interventions promoting physical activity were identified, with enough information to translate effects into MET-hours gained. Cost-effectiveness ratios were then calculated as cost per MET-hour gained per day per individual reached. Physical activity benefits were compared to U.S. guideline-recommended levels (1.5 MET-hours per day for adults and 3.0 MET-hours per day for children, equivalent to walking 30 and 60 minutes, respectively). The most cost-effective strategies were for point-of-decision prompts (e.g., signs to prompt stair use), with a median cost of $0.07/MET-hour/day/person; these strategies had tiny effects, adding only 0.2% of minimum recommended physical activity levels. School-based physical activity interventions targeting children and adolescents ranked well with a median of $0.42/MET-hour/day/person, generating an average of 16% of recommended physical activity. Although there were few interventions in the categories of "creation or enhanced access to places for physical activity" and "community campaigns," several were cost effective. The least cost-effective categories were the high-intensity "individually adapted behavior change" and "social support" programs, with median cost-effectiveness ratios of $0.84 and $1.16 per MET-hour/day/person. However, they also had the largest effect sizes, adding 35%-43% of recommended physical activity, respectively. Study quality was variable, with many relying on self-reported outcomes. The cost effectiveness, effect size, and study quality should all be considered when choosing physical activity interventions. Copyright © 2011 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.
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                Author and article information

                Journal
                ANM
                Ann Nutr Metab
                10.1159/issn.0250-6807
                Annals of Nutrition and Metabolism
                S. Karger AG
                0250-6807
                1421-9697
                2017
                September 2017
                29 July 2017
                : 71
                : 1-2
                : 107-117
                Affiliations
                aDivision of Nutritional Sciences, and bHispanic Health Programs, Department of Human Development and Family Studies, Division of Nutritional Sciences, Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA
                Author notes
                *Margarita Teran-Garcia, MD, PhD, University of Illinois at Urbana-Champaign, 904 W. Nevada, 2005 Christopher Hall, Urbana, IL 61801 (USA), E-Mail teranmd@illinois.edu
                Article
                477216 Ann Nutr Metab 2017;71:107-117
                10.1159/000477216
                28768248
                dd5a13db-9122-4306-bcb7-6b514c2873d6
                © 2017 S. Karger AG, Basel

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                History
                : 15 August 2016
                : 02 May 2017
                Page count
                Figures: 3, Tables: 4, References: 53, Pages: 11
                Categories
                Systematic Review

                Nutrition & Dietetics,Health & Social care,Public health
                Obesity,Dyslipidemia,Dietary fat
                Nutrition & Dietetics, Health & Social care, Public health
                Obesity, Dyslipidemia, Dietary fat

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