Dietary patterns, food groups and telomere length: a systematic review of current studies

2016 ◽  
Vol 71 (2) ◽  
pp. 151-158 ◽  
Author(s):  
N Rafie ◽  
S Golpour Hamedani ◽  
F Barak ◽  
S M Safavi ◽  
M Miraghajani
Keyword(s):  
Systematic Review ◽  
Telomere Length ◽  
Dietary Patterns ◽  
Food Groups

scholarly journals Reproducibility and Validity of A Posteriori Dietary Patterns: A Systematic Review

2019 ◽  
Author(s):  
Valeria Edefonti ◽  
Roberta De Vito ◽  
Michela Dalmartello ◽  
Linia Patel ◽  
Andrea Salvatori ◽  
...  
Keyword(s):  
Systematic Review ◽  
Factor Analysis ◽  
Construct Validity ◽  
Dietary Patterns ◽  
Research Question ◽  
A Posteriori ◽  
Food Groups ◽  
Relative Validity ◽  
Pubmed Database ◽  
Statistical Solutions

ABSTRACT The effective use of dietary patterns (DPs) remains limited. There is a need to assess their consistency over multiple administrations of the same dietary source, different dietary sources, or across different studies. Similarly, their generalizability should be based on a previous assessment of DP construct validity. However, to date, no systematic reviews of reproducibility and validity of a posteriori DPs have been carried out. In addition, several methodological questions related to their identification are still open and prevent a fair comparison of epidemiological results on DPs and disease. A systematic review of the literature on the PubMed database was conducted. We identified 218 articles, 64 of which met the inclusion criteria. Of these, the 38 articles dealing with reproducibility and relative and construct validity of DPs were included. These articles (published in 1999–2017, 53% from 2010 onwards) were based on observational studies conducted worldwide. The 14 articles that assessed DP reproducibility across different statistical solutions examined different research questions. Included were: the number of food groups or subjects; input variable format (as well as adjustment for energy intake); algorithms and the number of DPs to retain in cluster analysis; rotation method; and score calculation in factor analysis. However, we identified at most 3 articles per research question on DP reproducibility across statistical solutions. From another 15 articles, reproducibility of DPs over shorter (≤1 y) time periods was generally good and higher than DP relative validity (as measured across different dietary sources). Confirmatory factor analysis was used in 15 of the included articles. It provided reassuring results in identifying valid dietary constructs characterizing the populations under consideration. Based on the available evidence, only suggestive conclusions can be derived on reproducibility across different statistical solutions. Nevertheless, most identified DPs showed good reproducibility, fair relative validity, and good construct validity.

Stroke, food groups, and dietary patterns: a systematic review

2012 ◽  
Vol 70 (8) ◽  
pp. 423-435 ◽  
Author(s):  
Ayesha Sherzai ◽  
Lauren T Heim ◽  
Cassaundra Boothby ◽  
A Dean Sherzai
Keyword(s):  
Systematic Review ◽  
Dietary Patterns ◽  
Food Groups

scholarly journals Diet and Leukocyte Telomere Length in a Population with Extended Longevity: The Costa Rican Longevity and Healthy Aging Study (CRELES)

Nutrients ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 2585
Author(s):  
Edward A. Ruiz-Narváez ◽  
Ana Baylin ◽  
Jorge Azofeifa ◽  
Alejandro Leal ◽  
Luis Rosero-Bixby
Keyword(s):  
Telomere Length ◽  
Dietary Patterns ◽  
Dietary Pattern ◽  
Healthy Aging ◽  
Costa Rican ◽  
Dietary Factors ◽  
Leukocyte Telomere Length ◽  
Food Groups ◽  
Aging Study ◽  
Extended Longevity

Elderly Costa Ricans have lower mortality rates compared to their counterparts from developed countries. Reasons for this survival advantage are not completely known. In the present study, we aimed to identify dietary factors associated with leukocyte telomere length (LTL), a marker of biologic aging, in the elderly population of Costa Rica. We conducted prospective analysis in 909 participants aged 60+ years from the Costa Rican Longevity and Healthy Aging Study (CRELES). We used a food frequency questionnaire to assess usual diet. We calculated dietary patterns using Principal Component Analysis (PCA). We used generalized linear models to examine the association of dietary patterns and food groups with leukocyte telomere length. We found two major dietary patterns explaining 9.15% and 7.18% of the total variation of food intake, respectively. The first dietary pattern, which represents a traditional Costa Rican rice and beans pattern, was more frequent in rural parts of the country and was positively associated with baseline LTL: β (95% CI) = 42.0 base-pairs (bp) (9.9 bp, 74.1 bp) per one-unit increase of the traditional dietary pattern. In analysis of individual food groups, intake of grains was positively associated with baseline LTL: β (95% CI) = 43.6 bp (13.9 bp, 73.3 bp) per one-serving/day increase of consumption of grains. Our results suggest that dietary factors, in particular a traditional food pattern, are associated with telomere length and may contribute to the extended longevity of elderly Costa Ricans.

scholarly journals Biomarkers of Dietary Patterns: A Systematic Review of Randomised Controlled Trials

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 878-878
Author(s):  
Shuang Liang ◽  
Reeja Nasir ◽  
Michael Skilton ◽  
Clemence Toniutti ◽  
Kim Bell-Anderson ◽  
...  
Keyword(s):  
Systematic Review ◽  
Dietary Patterns ◽  
Dietary Pattern ◽  
Randomised Controlled Trials ◽  
World Health ◽  
Future Research ◽  
Controlled Trials ◽  
Food Groups ◽  
Dietary Biomarkers ◽  
Randomised Controlled

Abstract Objectives We undertook a systematic review of clinical trials to identify a) dietary biomarkers being used to assess dietary pattern compliance, and b) novel biomarkers that are affected by intake of distinct dietary patterns. Methods The search strategy was developed in Medline and adapted for four additional databases: EMBASE, Cochrane CENTRAL, PreMedline, and CINAHL. Two independent reviewers extracted data and assessed risk of bias using the Cochrane tool. Results Literature search retrieved 3930 records; 450 full texts were assessed, and 30 articles reporting randomised controlled trials met the inclusion criteria. The most studied dietary patterns were the Mediterranean diet, healthy Nordic diet, Dietary Approaches to Stop Hypertension (DASH) diet, followed by low glycaemic-load diet, vegetarian diet, diets based on national and international guidelines (i.e., United Kingdom and World Health Organization Eating Guidelines), Korean diet and prudent diet. Of these, 13 articles incorporated prospectively identified dietary biomarkers, the most common being omega-3 index from erythrocytes or whole blood, 24-h urinary electrolytes, and serum or plasma carotenoids. Seventeen articles identified novel metabolomic biomarkers associated with dietary patterns, the most frequently identified being those associated with protein, lipid, and fish intakes. Conclusions Using dietary biomarkers of single nutrients, individual foods and food groups is commonly used to assess dietary compliance to dietary pattern interventions in controlled settings. However, identifying an individual's specific or broad dietary pattern, based on their biomarker profile, remains an area for future research. A framework that incorporates multiple biomarkers of individual dietary characteristics is likely necessary to accurately capture the complexity of dietary patterns. Funding Sources N/A.

Association between obesity and dietary patterns in children of developing countries in Asia: A Systematic Review

2011 ◽  
Vol 9 (Supplement) ◽  
pp. 1-12
Author(s):  
Wai Yew Yang ◽  
Lauren Williams ◽  
Clare Collins ◽  
Chee WSS
Keyword(s):  
Systematic Review ◽  
Developing Countries ◽  
Dietary Patterns

scholarly journals Dietary patterns and frailty: a systematic review and meta-analysis

2019 ◽  
Vol 77 (7) ◽  
pp. 498-513 ◽  
Author(s):  
Nafiseh Rashidi Pour Fard ◽  
Farzad Amirabdollahian ◽  
Fahimeh Haghighatdoost
Keyword(s):  
Systematic Review ◽  
Dietary Patterns ◽  
Meta Analysis

scholarly journals Systematic review of the association between dietary patterns and perinatal anxiety and depression

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
David Franciole Oliveira Silva ◽  
Ricardo Ney Cobucci ◽  
Ana Katherine Gonçalves ◽  
Severina Carla Vieira Cunha Lima
Keyword(s):  
Systematic Review ◽  
Dietary Patterns ◽  
Anxiety And Depression ◽  
Perinatal Anxiety
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