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Gürel S, Pak EN, Tek NA. Aging Processes Are Affected by Energy Balance: Focused on the Effects of Nutrition and Physical Activity on Telomere Length. Curr Nutr Rep 2024; 13:264-279. [PMID: 38498288 PMCID: PMC11133118 DOI: 10.1007/s13668-024-00529-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2024] [Indexed: 03/20/2024]
Abstract
PURPOSE OF REVIEW The number and proportion of individuals aged 60 and over are increasing globally. The increase in the elderly population has important social and economic effects. Telomere length is an important marker for healthy aging. Here, we review the relevance between telomere length and energy balance by determining the effects of physical activity, nutrients, dietary patterns, and foods on healthy aging and telomere length with related studies. RECENT FINDINGS Evidence emphasizes the importance of telomere length and integrity for healthy aging. It also focuses on the importance of potential interventions such as physical activity and a healthy diet to improve this process. We suggest that ensuring energy balance with regular physical activity and healthy diets can contribute to the aging process by protecting telomere length. In addition, different methods in studies, short and inconsistent durations, different types of exercise, different diet patterns, and non-standard foods have led to conflicting results. More studies are needed to elucidate molecular-based mechanisms.
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Affiliation(s)
- Satı Gürel
- Department of Nutrition and Dietetics, Faculty of Health Science, Trakya University, 22030, Edirne, Turkey
| | - Elif Nisa Pak
- Department of Nutrition and Dietetics, Faculty of Health Science, Kilis 7 Aralık University, 79000, Kilis, Turkey.
| | - Nilüfer Acar Tek
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, 06490, Ankara, Turkey
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2
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Tucker LA, Brockbank JA. Weight Change over Ten Years Predicts Biological Aging in a Random Sample of 3070 U.S. Adults. Nutrients 2023; 15:2862. [PMID: 37447188 DOI: 10.3390/nu15132862] [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: 05/16/2023] [Revised: 06/16/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
This investigation was designed to study the relationship between weight change over 10 years and leukocyte telomere length (LTL) in a large sample of 3070 randomly selected U.S. adults, 36-70 years old. The National Health and Nutrition Examination Survey (NHANES) data were used to examine the relationship between percent weight change and LTL. Potential mediating variables were controlled using partial correlation. After adjusting for age, race, year, and housing status, the association between percent weight change over 10 years and LTL was significant in women (F = 6.9, p = 0.0138). Adjusting for the demographic and several other covariates weakened the relationship slightly (F = 4.7, p = 0.0392). With all the covariates controlled, for each one percentage point increase in weight over the previous 10 years, telomeres were, on average, 3.48 base pairs (bp) shorter in women. Given that each one-year increase in age was associated with telomeres that were 15.0 bp shorter in women, the median weight change in U.S. women over the previous 10 years (an increase of 10.4%) was predictive of LTLs that were 36 bp shorter, on average, or an increase of 2.4 years of biological aging. Percent weight change over 10 years was not associated with LTL in U.S. men. Percent weight change over 10 years is a strong predictor of biological aging in U.S. women, but not in men.
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Affiliation(s)
- Larry A Tucker
- College of Life Sciences, Brigham Young University, Provo, UT 84602, USA
| | - Joshua A Brockbank
- School of Family Life, Human Development, Brigham Young University, Provo, UT 84602, USA
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Valera-Gran D, Prieto-Botella D, Hurtado-Pomares M, Baladia E, Petermann-Rocha F, Sánchez-Pérez A, Navarrete-Muñoz EM. The Impact of Foods, Nutrients, or Dietary Patterns on Telomere Length in Childhood and Adolescence: A Systematic Review. Nutrients 2022; 14:nu14193885. [PMID: 36235538 PMCID: PMC9570627 DOI: 10.3390/nu14193885] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/15/2022] [Accepted: 09/17/2022] [Indexed: 11/16/2022] Open
Abstract
Environmental factors such as diet can affect telomere length (TL) dynamics. However, the role that children’s and adolescents’ diets play in maintaining TL is not well understood. Thus, we conducted a systematic review to examine the association between the intake of nutrients, foods, food groups, and/or dietary patterns and TL in childhood and adolescence. Following the PRISMA guidelines, we searched MEDLINE via PubMed, Embase, and Cochrane databases and additional registers and methods. The five selected studies were cross-sectional and conducted in children and adolescents aged 2 to 18 years. The main results suggest that a higher consumption of fish, nuts and seeds, fruits and vegetables, green leafy and cruciferous vegetables, olives, legumes, polyunsaturated fatty acids, and an antioxidant-rich diet might positively affect TL. On the contrary, a higher intake of dairy products, simple sugar, sugar-sweetened beverages, cereals, especially white bread, and a diet high in glycaemic load were factors associated with TL shortening. To our knowledge, this is the first systematic review examining the impact of dietary intake factors on TL in childhood and adolescence. Although limited, these results are consistent with previous studies in different adult populations. Further research is needed to ascertain potential nutritional determinants of TL in childhood and adolescence.
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Affiliation(s)
- Desirée Valera-Gran
- Grupo de Investigación en Terapia Ocupacional (InTeO), Department of Surgery and Pathology, Miguel Hernández University, 03550 Alicante, Spain
- Correspondence: (D.V.-G.); (A.S.-P.); Tel.: +34-965-233-705 (D.V.-G.)
| | - Daniel Prieto-Botella
- Grupo de Investigación en Terapia Ocupacional (InTeO), Department of Surgery and Pathology, Miguel Hernández University, 03550 Alicante, Spain
| | - Miriam Hurtado-Pomares
- Grupo de Investigación en Terapia Ocupacional (InTeO), Department of Surgery and Pathology, Miguel Hernández University, 03550 Alicante, Spain
| | - Eduard Baladia
- Centro de Análisis de la Evidencia Científica, Academia Española de Nutrición y Dietética, 08007 Barcelona, Spain
| | - Fanny Petermann-Rocha
- Centro de Investigación Biomédica, Facultad de Medicina, Universidad Diego Portales, Santiago 8370109, Chile
| | - Alicia Sánchez-Pérez
- Grupo de Investigación en Terapia Ocupacional (InTeO), Department of Surgery and Pathology, Miguel Hernández University, 03550 Alicante, Spain
- Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), 03010 Alicante, Spain
- Correspondence: (D.V.-G.); (A.S.-P.); Tel.: +34-965-233-705 (D.V.-G.)
| | - Eva-María Navarrete-Muñoz
- Grupo de Investigación en Terapia Ocupacional (InTeO), Department of Surgery and Pathology, Miguel Hernández University, 03550 Alicante, Spain
- Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), 03010 Alicante, Spain
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Insulin Resistance and Biological Aging: The Role of Body Mass, Waist Circumference, and Inflammation. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2146596. [PMID: 35586815 PMCID: PMC9110194 DOI: 10.1155/2022/2146596] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/23/2022] [Accepted: 04/16/2022] [Indexed: 11/17/2022]
Abstract
The purpose of this investigation was to evaluate the association between insulin resistance and biological aging in a randomly selected sample of 2,596 U.S. women and men. Another key objective was to examine the extent to which the insulin resistance and biological aging association was influenced by differences in body mass, waist circumference, and systemic inflammation. Biological aging was indexed using the length of leukocyte telomeres. The homeostatic model assessment (HOMA) was employed to index insulin resistance. The body mass index (BMI) was used to represent body mass independent of height. Waist circumference was used to assess abdominal adiposity, and C-reactive protein (CRP) was measured to index body-wide inflammation. Insulin resistance and telomere length were both treated as continuous variables. Results revealed that insulin resistance was related significantly with cellular aging, after adjusting for several demographic covariates (
,
). The association remained significant after controlling for multiple demographic and lifestyle covariates together (
,
). However, after controlling for BMI, along with the other covariates, insulin resistance was no longer associated with biological aging
. After adjusting for differences in waist circumference, along with the demographic and lifestyle covariates, but not BMI, the relationship between insulin resistance and biological aging was negated further
. Adjusting for CRP with the demographic and lifestyle covariates, but not BMI or waist circumference, weakened the relationship (
,
). Evidently, if all adults in the U.S. had the same BMI or waist circumference, there would not be a relationship between insulin resistance and telomere length. It appears that insulin resistance accounts for differences in biological aging mainly because of differences in BMI and waist circumference, especially the latter.
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George ES, Daly RM, Tey SL, Brown R, Wong THT, Tan SY. Perspective: Is it Time to Expand Research on "Nuts" to Include "Seeds"? Justifications and Key Considerations. Adv Nutr 2022; 13:1016-1027. [PMID: 35333288 PMCID: PMC9340969 DOI: 10.1093/advances/nmac028] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 01/29/2022] [Accepted: 03/22/2022] [Indexed: 12/18/2022] Open
Abstract
The health benefits of nuts reported throughout the literature are extensive and well established for reducing the risk of, and managing several chronic conditions such as cardiovascular disease, type 2 diabetes, nonalcoholic fatty liver disease, and cognition. Despite their comparable nutrient profile to nuts, seeds are often not assessed in clinical and epidemiological studies. Interestingly, dietary guidelines and recommendations often refer to "nuts and seeds" collectively, even though they are not consistently examined together in nutrition research when determining associated health benefits. The purpose of this review is to call for future nutrition research to consider combining nuts and seeds. This review provides justification for this proposal by summarizing current definitions for nuts and seeds and highlighting the similarities or dissimilarities in their nutrient compositions. Following this, we summarize current evidence on the health benefits of nuts and seeds, research gaps that should be addressed, and considerations for future research using both epidemiological and interventional study designs.
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Affiliation(s)
- Elena S George
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Siew Ling Tey
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Rachel Brown
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Tommy Hon Ting Wong
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong Special Administrative Region, People's Republic of China
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Rodríguez-Ramírez S, Sánchez-Pimienta TG, Batis C, Cediel G, Marrón-Ponce JA. Minimum dietary diversity in Mexico: establishment of cutoff point to predict micronutrients adequacy. Eur J Clin Nutr 2021; 76:739-745. [PMID: 34584223 DOI: 10.1038/s41430-021-01007-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 08/19/2021] [Accepted: 09/03/2021] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To establish the cutoff point for a Minimum Dietary Diversity (MDD) that most accurately predicts the Mean Probability Adequacy (MPA) of 11 micronutrients in the Mexican population, and estimate the population prevalence above it. SUBJECTS AND METHODS We analyzed a 24 h-recall collected in a sample of 10,087 participants (≥1-year-old) from the 2012 Mexican National Health and Nutrition Survey. Foods were classified into ten food group indicators (FGIs) of the Food Agriculture Organization (FAO). The cutoff points of MDD were established as follows: (1) sum of the number of FGIs in the participant's diet; (2) micronutrient intake adequacy estimated by the probability approach method of the FAO; (3) Receiver operating characteristic curves generated by age groups to assess the performance of the number FGIs consumed in predicting the MPA. RESULTS The cutoff points of MMD established by age groups were: ≥4 FGIs in preschool-aged children (75.94% of sensitivity and 72.55% of specificity); ≥5 FGIs in school-aged children (60.51% of sensitivity and 72.82% of specificity) and adolescents (70.01% of sensitivity and 59.38% of specificity); and six in adults (62.26% of sensitivity and 70.33% of specificity) and elders (66.67% of sensitivity and 73.33% of specificity). Based on these cutoff points, we observed that 75% of the preschool-aged children, ~60% of school-aged children and adolescents, and less than 40% of adults and elders were above the MDD. CONCLUSION This study provides novel insight into the specific MDD cutoff point to predict micronutrient adequacy in the Mexican population.
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Affiliation(s)
- Sonia Rodríguez-Ramírez
- Center for Nutrition and Health Research, National Institute of Public Health, Avenida Universidad 655 Colonia Santa María Ahuacatitlán, Cuernavaca, CP, 62100, Mexico
| | - Tania G Sánchez-Pimienta
- Center for Nutrition and Health Research, National Institute of Public Health, Avenida Universidad 655 Colonia Santa María Ahuacatitlán, Cuernavaca, CP, 62100, Mexico
| | - Carolina Batis
- CONACYT-Center for Nutrition and Health Research, National Institute of Public Health, Avenida Universidad 655 Colonia Santa María Ahuacatitlán, Cuernavaca, CP, 62100, Mexico
| | - Gustavo Cediel
- University of Antioquia, School of Nutrition and Dietetics, UdeA Calle 70 No. 52-21, Medellín, ANT, Colombia
| | - Joaquín A Marrón-Ponce
- Center for Nutrition and Health Research, National Institute of Public Health, Avenida Universidad 655 Colonia Santa María Ahuacatitlán, Cuernavaca, CP, 62100, Mexico.
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Güneşliol BE, Karaca E, Ağagündüz D, Acar ZA. Association of physical activity and nutrition with telomere length, a marker of cellular aging: A comprehensive review. Crit Rev Food Sci Nutr 2021; 63:674-692. [PMID: 34553645 DOI: 10.1080/10408398.2021.1952402] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The aging of the population has great social and economic effects because it is characterized by a gradual loss in physiological integrity, resulting in functional decline, thereby loss of ability to move independently. Telomeres, the hallmarks of biological aging, play a protective role in both cell death and aging. Critically short telomeres give rise to a metabolically active cell that is unable to repair damage or divide, thereby leading to aging. Lifestyle factors such as physical activity (PA) and nutrition could be associated with telomere length (TL). Indeed, regular PA and healthy nutrition as integral parts of our lifestyle can slow down telomere shortening, thereby delaying aging. In this context, the present comprehensive review summarizes the data from recent literature on the association of PA and nutrition with TL.
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Affiliation(s)
| | - Esen Karaca
- Department of Nutrition and Dietetics, Izmir Demokrasi University, Izmir, Turkey
| | - Duygu Ağagündüz
- Department of Nutrition and Dietetics, Gazi University, Ankara, Turkey
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Razmaitė V, Pileckas V, Bliznikas S, Šiukščius A. Fatty Acid Composition of Cannabis sativa, Linum usitatissimum and Camelina sativa Seeds Harvested in Lithuania for Food Use. Foods 2021; 10:foods10081902. [PMID: 34441681 PMCID: PMC8394818 DOI: 10.3390/foods10081902] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/13/2021] [Accepted: 08/13/2021] [Indexed: 12/22/2022] Open
Abstract
The objective of this study was to determine species-associated differences in the seed proximate and fatty acid composition of three traditional oil crop species, hemp (Cannabis sativa), flax (Linum usitatissimum), and camelina (Camelina sativa), and the sowing season of camelina harvested under Lithuanian farming conditions for food use. Camelina seeds had the highest (p < 0.001) content of protein, oil, and sugar contents compared to both dehulled hemp and flax seeds. The amounts of protein and oil in camelina seeds were considerably increased by their summer cultivar, which showed higher (p < 0.001) contents of protein and oil than winter cultivars. However, the highest and lowest (p < 0.001) fiber content was found in flax seeds and camelina seeds, respectively. Camelina seeds showed considerably higher and lower (p < 0.001) proportions of total monounsaturated (MUFA) and polyunsaturated (PUFA) fatty acids, respectively, compared with hemp and flax. The summer cultivar of camelina had higher (p < 0.001) proportions of saturated (SFA) and MUFA and lower proportions of PUFA compared with winter cultivars. Hemp seeds had the highest and lowest (p < 0.001) proportions of PUFA and MUFA, respectively. The n-6/n-3 PUFA ratio in hemp seeds is optimal (3.79), whereas the use of flax and camelina seeds with their n-6/n-3 ratios of 0.28 and 0.48, respectively, can significantly improve this ratio in the overall diet. The properties of oil crop seeds showed that whole seeds of hemp, flax, and camelina are potentially highly beneficial to human health.
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Bailey SM, Luxton JJ, McKenna MJ, Taylor LE, George KA, Jhavar SG, Swanson GP. Ad Astra - telomeres in space! Int J Radiat Biol 2021; 98:395-403. [PMID: 34270368 DOI: 10.1080/09553002.2021.1956010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE My journey to the stars began as I - along with the whole world - stood still and watched Neil Armstrong take those first small steps on the Moon. Fast forward 50 years and NASA astronauts Scott Kelly and Christina Koch each spend nearly a year in space aboard the International Space Station (ISS), a remarkable multinational collaborative project and floating U.S. National Laboratory that has supported continuous human presence in low Earth orbit for the past 20 years. Marking a new era of human space exploration, the first commercial rocket, SpaceX Falcon 9, recently launched NASA astronauts Doug Hurley and Bob Behnken in the Crew Dragon spacecraft Endeavor to the ISS and returned safely to Earth. NASA and its commercial partners are rapidly advancing innovative space technologies, and with the recently announced Artemis team of astronauts, plans to send the first woman and next man back to the moon and establish sustainable exploration by the end of the decade. Humankind will then be poised to take the next giant leap - pioneering human exploration of Mars. CONCLUSIONS Historically, fewer than 600 individuals have participated in spaceflight, the vast majority of whom have been middle aged males (35-55 years) on short duration missions (less than 20 days). Thus, as the number and diversity of space travelers increase, a better understanding of how long-duration spaceflight affects human health is essential to maintaining individual astronaut performance during, and improving disease and aging trajectories following, future exploration missions. Here, I review findings from our NASA Twins Study and Telomeres investigations, highlighting potential mechanistic roles of chronic space radiation exposure in changes in telomere length and persistent DNA damage responses associated with long-duration spaceflight. Importantly, similar trends were observed in prostate cancer patients undergoing intensity-modulated radiation therapy (IMRT), additional support specifically for the role of radiation exposure. Individual differences in response were also observed in both cohorts, underscoring the importance of developing personalized approaches for evaluating human health effects and long-term outcomes associated with radiation exposures, whether on Earth or living in the extreme environment of space.
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Affiliation(s)
- Susan M Bailey
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA.,Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO, USA
| | - Jared J Luxton
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA.,Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO, USA
| | - Miles J McKenna
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA.,Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO, USA
| | - Lynn E Taylor
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA
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Meshkani SE, Kooshki A, Alahabadi A, Lari Najafi M, Rad A, Riahimanesh F, Miri M. Dietary pattern and telomere length in preschool children in a middle-income country. MATERNAL & CHILD NUTRITION 2021; 17:e13146. [PMID: 33543592 PMCID: PMC8189250 DOI: 10.1111/mcn.13146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 01/07/2021] [Accepted: 01/12/2021] [Indexed: 12/15/2022]
Abstract
Telomere length (TL) has been associated with lifestyle and dietary pattern. However, the available evidence on this association in children is scarce, especially in low- and middle-income countries (LMICs). Therefore, this study aimed to evaluate the association of dietary pattern and leukocyte TL (LTL) in preschool children, Sabzevar, Iran (2017). This cross-sectional study was based on 187 preschool children (aged 5 to 7) recruited from 27 kindergartens. Nutrition information including amounts of consumed dairy products, meat and processed meat products, nuts and seeds, white bread and refined grains, fruits, vegetables, simple sugars, fats and drinks was obtained through a questionnaire. Linear mixed-effects models were fitted with polymerase chain reaction (PCR) plate ID and kindergartens as random effects to estimate the association of each food group consumption with LTL, controlled for relevant covariates. Higher consumption of dairy products and sugar was associated with shorter LTL (β = -0.180, 95% confidence interval [CI]: -0.276, -0.085, P value <0.001 and β = -0.139, 95% CI: -0.193, -0.086, P value <0.001, respectively). An increase in consumption of fish, nuts and seeds, coloured fruits, green leafy vegetables, cruciferous vegetables and olive was significantly associated with the increase in relative LTL. The associations for the consumption of legumes, other fruits, yellow and orange vegetables, red meat, egg, white bread and refined grains, solid and liquid fats, processed meats, potato chips, carbonated drinks, tea (black) and soft drinks groups were not statistically significant. Our findings showed that there was an association between the consumption of certain food groups with LTL.
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Affiliation(s)
- Seyed Elyas Meshkani
- Cellular and Molecular Research CenterSabzevar University of Medical SciencesSabzevarIran
| | - Akram Kooshki
- Department of Nutrition & Biochemistry, School of MedicineSabzevar University of Medical SciencesSabzevarIran
| | - Ahmad Alahabadi
- Non‐Communicable Disease Research Center, Department of Environmental HealthSabzevar University of Medical SciencesSabzevarIran
| | - Moslem Lari Najafi
- Pharmaceutical Sciences and Cosmetic Products Research CenterKerman University of Medical SciencesKermanIran
| | - Abolfazl Rad
- Cellular and Molecular Research CenterSabzevar University of Medical SciencesSabzevarIran
| | - Forough Riahimanesh
- Cellular and Molecular Research CenterSabzevar University of Medical SciencesSabzevarIran
| | - Mohammad Miri
- Non‐Communicable Disease Research Center, Department of Environmental HealthSabzevar University of Medical SciencesSabzevarIran
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Minimal changes in telomere length after a 12-week dietary intervention with almonds in mid-age to older, overweight and obese Australians: results of a randomised clinical trial. Br J Nutr 2021; 127:872-884. [PMID: 33971995 DOI: 10.1017/s0007114521001549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Diet is a modifiable risk factor for chronic disease and a potential modulator of telomere length (TL). The study aim was to investigate associations between diet quality and TL in Australian adults after a 12-week dietary intervention with an almond-enriched diet (AED). Participants (overweight/obese, 50-80 years) were randomised to an AED (n 62) or isoenergetic nut-free diet (NFD, n 62) for 12 weeks. Diet quality was assessed using a Dietary Guideline Index (DGI), applied to weighed food records, that consists of ten components reflecting adequacy, variety and quality of core food components and discretionary choices within the diet. TL was measured by quantitative PCR in samples of lymphocytes, neutrophils, and whole blood. There were no significant associations between DGI scores and TL at baseline. Diet quality improved with AED and decreased with NFD after 12 weeks (change from baseline AED + 9·8 %, NFD - 14·3 %; P < 0·001). TL increased in neutrophils (+9·6 bp, P = 0·009) and decreased in whole blood, to a trivial extent (-12·1 bp, P = 0·001), and was unchanged in lymphocytes. Changes did not differ between intervention groups. There were no significant relationships between changes in diet quality scores and changes in lymphocyte, neutrophil or whole blood TL. The inclusion of almonds in the diet improved diet quality scores but had no impact on TL mid-age to older Australian adults. Future studies should investigate the impact of more substantial dietary changes over longer periods of time.
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Fruit and Vegetable Intake and Telomere Length in a Random Sample of 5448 U.S. Adults. Nutrients 2021; 13:nu13051415. [PMID: 33922436 PMCID: PMC8146059 DOI: 10.3390/nu13051415] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 02/06/2023] Open
Abstract
The relationship between fruit and vegetable intake and telomere length was examined using a cross-sectional design and an NHANES random sample of 5448 U.S. adults. Fruit and vegetable (F&V) consumption was assessed using a 24 h recall, and telomere length, an index of cellular aging, was measured using the quantitative polymerase chain reaction method. Telomere length was linearly related to F&V intake when combined (F = 22.7, p < 0.0001) and also when separated as fruit (F = 7.2, p < 0.0121) or vegetables (F = 15.4, p < 0.0005), after adjusting for covariates. Specifically, telomeres were 27.8 base pairs longer for each 100 g (3.5 ounces) of F&V consumed. Because each additional year of chronological age was associated with telomeres that were 14.9 base pairs shorter, when women and men were analyzed together, results indicated that a 100 g (3.5 oz) per day increment in F&V corresponded with 1.9 years less biological aging. When the 75th percentile of F&V intake was compared to the 25th, the difference was 4.4 years of cellular aging. When separated by sex, fruits and vegetables were both related to telomere length in women, but only vegetable intake was predictive of telomere length in men. In conclusion, evidence based on a random sample of U.S. adults indicates that the more the servings of F&V, the longer telomeres tend to be.
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Alasalvar C, Chang SK, Bolling B, Oh WY, Shahidi F. Specialty seeds: Nutrients, bioactives, bioavailability, and health benefits: A comprehensive review. Compr Rev Food Sci Food Saf 2021; 20:2382-2427. [PMID: 33719194 DOI: 10.1111/1541-4337.12730] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 01/28/2021] [Accepted: 02/02/2021] [Indexed: 02/06/2023]
Abstract
Seeds play important roles in human nutrition and health since ancient time. The term "specialty" has recently been applied to seeds to describe high-value and/or uncommon food products. Since then, numerous studies have been conducted to identify various classes of bioactive compounds, including polyphenols in specialty seeds. This review discusses nutrients, fat-soluble bioactives, polyphenols/bioactives, antioxidant activity, bioavailability, health benefits, and safety/toxicology of commonly consumed eight specialty seeds, namely, black cumin, chia, hemp, flax, perilla, pumpkin, quinoa, and sesame. Scientific results from the existing literature published over the last decade have been compiled and discussed. These specialty seeds, having numerous fat-soluble bioactives and polyphenols, together with their corresponding antioxidant activities, have increasingly been consumed. Hence, these specialty seeds can be considered as a valuable source of dietary supplements and functional foods due to their health-promoting bioactive components, polyphenols, and corresponding antioxidant activities. The phytochemicals from these specialty seeds demonstrate bioavailability in humans with promising health benefits. Additional long-term and well-design human intervention trials are required to ascertain the health-promoting properties of these specialty seeds.
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Affiliation(s)
| | - Sui Kiat Chang
- Department of Horticulture, Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Bradley Bolling
- Department of Food Science, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Won Young Oh
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X9, Canada
| | - Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X9, Canada
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14
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Nuts and Older Adults' Health: A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18041848. [PMID: 33672861 PMCID: PMC7918786 DOI: 10.3390/ijerph18041848] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 01/31/2021] [Accepted: 02/10/2021] [Indexed: 12/14/2022]
Abstract
Although the beneficial effects of nuts on cardiometabolic diseases have been well established, little is known about the effects of nuts on age-related diseases. Given that age-related diseases share many biological pathways with cardiometabolic diseases, it is plausible that diets rich in nuts might be beneficial in ameliorating age-related conditions. The objective of this review was to summarise the findings from studies that have examined the associations or effects of nut consumption, either alone or as part of the dietary pattern, on three major age-related factors—telomere length, sarcopenia, and cognitive function—in older adults. Overall, the currently available evidence suggests that nut consumption, particularly when consumed as part of a healthy diet or over a prolonged period, is associated with positive outcomes such as longer telomere length, reduced risk of sarcopenia, and better cognition in older adults. Future studies that are interventional, long-term, and adequately powered are required to draw definitive conclusions on the effects of nut consumption on age-related diseases, in order to inform dietary recommendations to incorporate nuts into the habitual diet of older adults.
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15
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Mizuno Y, Konishi S, Goto C, Yoshinaga J, Hidaka M, Imai H. Association between nutrient intake and telomere length in Japanese female university students. Biomarkers 2021; 26:138-145. [PMID: 33393836 DOI: 10.1080/1354750x.2020.1871409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Telomere length can be a biomarker of cumulative oxidative stress and inflammation indicating biological aging. Previous studies examined association of nutrient intake with telomere length targeting middle-aged and elderly individuals. This study examined whether dietary macro- and micronutrient intake was associated with telomere length in young females. METHODS Seventy-four Japanese young females (median (interquartile range) age was 19 (19 - 20) years) participated. We estimated their intake of nutrients (energy, protein, fat, carbohydrate, essential elements, vitamins, fatty acids, and dietary fibre) using a semi-quantitative food frequency questionnaire and measured telomere length (T/S ratio, the ratio of telomere repeat copy number (T) to single-copy gene number (S)) of DNA extracted from blood by qPCR. The association between telomere length and tertiles of nutrient intake were analysed. RESULTS The median (interquartile range) of telomere length was 0.70 (0.52 - 0.98). Vitamin A intake was positively associated with telomere length (tertile 1 vs. 2, coefficient [95% confidence interval] = 0.42 [0.12, 0.71]; tertile 1 vs. 3, coefficient [95% confidence interval] = 0.33 [0.04, 0.62]) after adjusting for covariates (age, BMI, passive smoking, and drinking). CONCLUSIONS Our findings suggest that variation in vitamin A intake might influence telomere attrition in healthy individuals.
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Affiliation(s)
- Yuki Mizuno
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shoko Konishi
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Anthropology, University of Washington, Seattle, WA, USA
| | - Chiho Goto
- Department of Health and Nutrition, School of Health and Human Life, Nagoya Bunri University, Aichi, Japan
| | - Jun Yoshinaga
- Faculty of Life Sciences, Toyo University, Gunma, Japan
| | - Mikie Hidaka
- Department of Nursing, Tokyo Healthcare University, Tokyo, Japan
| | - Hideki Imai
- Faculty of Nursing, Ishikawa Prefectural Nursing University, Ishikawa, Japan
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16
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Dhillon VS, Deo P, Chua A, Thomas P, Fenech M. Telomere Length in Healthy Adults Is Positively Associated With Polyunsaturated Fatty Acids, Including Arachidonic Acid, and Negatively With Saturated Fatty Acids. J Gerontol A Biol Sci Med Sci 2021; 76:3-6. [PMID: 32894749 DOI: 10.1093/gerona/glaa213] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Indexed: 02/07/2023] Open
Abstract
Lymphocyte telomere length (LTL) is a biomarker of aging that may be modified by dietary factors including fat. Red blood cell fatty acid status is a well-validated indicator of long-term dietary intake of fat from various sources. Recent findings from epidemiological studies of LTL in relation to fatty acids in red blood cells are not conclusive. The present study was carried out to investigate if red blood cell fatty acid status in 174 healthy older South Australians is associated with LTL. Lymphocyte telomere length was measured by real-time qPCR and fatty acid content in red blood cells was measured by gas chromatography. Our results indicate that the majority of saturated fatty acids and monounsaturated fatty acids are negatively associated with LTL, whereas polyunsaturated fatty acids are positively associated with LTL. Multiple regression analysis revealed that arachidonic acid (C20:4n-6) is significantly, independently, positively correlated with LTL (β = 0.262; p = .000). The significant association of fatty acids, particularly C20:4n-6, with telomere length warrants further research.
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Affiliation(s)
- Varinderpal S Dhillon
- Health and Biomedical Innovation, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Permal Deo
- Health and Biomedical Innovation, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Ann Chua
- University of South Australia, Adelaide, Australia
| | - Phil Thomas
- University of South Australia, Adelaide, Australia
| | - Michael Fenech
- Health and Biomedical Innovation, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia.,Genome Health Foundation, North Brighton, Australia
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17
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Corina A, Abrudan MB, Nikolic D, Cӑtoi AF, Chianetta R, Castellino G, Citarrella R, Stoian AP, Pérez-Martínez P, Rizzo M. Effects of Aging and Diet on Cardioprotection and Cardiometabolic Risk Markers. Curr Pharm Des 2020; 25:3704-3714. [PMID: 31692432 DOI: 10.2174/1381612825666191105111232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 10/30/2019] [Indexed: 12/11/2022]
Abstract
The prevalence of several diseases increases by age, including cardiovascular diseases, which are the leading cause of morbidity and mortality worldwide. Aging, as a complex process characterized by senescence, triggers various pathways, such as oxidative stress, systemic inflammation, metabolism dysfunction, telomere shortening, mitochondrial dysfunction and deregulated autophagy. A better understanding of the mechanisms underlying senescence may lead to the development of new therapeutic targets and strategies for age-related pathologies and extend the healthy lifespan. Modulating lifestyle risk factors and adopting healthy dietary patterns remain significant tools in delaying the aging process, decreasing age-associated comorbidities and mortality, increasing life expectancy and consequently, preventing the development of cardiovascular disease. Furthermore, such a strategy represents the most cost-effective approach, and the quality of life of the subjects may be significantly improved. An integrated, personalized approach targeting cardiometabolic aging and frailty is suggested in daily clinical practice. However, it should be initiated from an early age. Moreover, there is a need for further well designed and controlled studies in order to elucidate a link between the time of feeding, longevity and cardiovascular prevention. In the future, it is expected that the pharmacological treatment in cardioprotective management will be necessary, accompanied by equally important lifestyle interventions and adjunctive exercise.
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Affiliation(s)
- Andreea Corina
- Lipids and Atherosclerosis Research Unit, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain.,CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Cordoba, Spain
| | - Maria B Abrudan
- Department of Pharmaceutical Technology and Biopharmaceutics, "Iuliu Hațieganu", University of Medicine and Pharmacy, Faculty of Pharmacy, Cluj-Napoca, Romania
| | - Dragana Nikolic
- PROMISE Department, University of Palermo, Palermo, Italy.,Euro-Mediterranean Institute of Science and Technology (IEMEST), Palermo, Italy
| | - Adriana F Cӑtoi
- Pathophysiology Department, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Roberta Chianetta
- PROMISE Department, University of Palermo, Palermo, Italy.,Euro-Mediterranean Institute of Science and Technology (IEMEST), Palermo, Italy
| | - Giuseppa Castellino
- PROMISE Department, University of Palermo, Palermo, Italy.,Euro-Mediterranean Institute of Science and Technology (IEMEST), Palermo, Italy
| | | | - Anca P Stoian
- Department of Diabetes, Nutrition and Metabolic Diseases, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Pablo Pérez-Martínez
- Lipids and Atherosclerosis Research Unit, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain.,CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Cordoba, Spain
| | - Manfredi Rizzo
- PROMISE Department, University of Palermo, Palermo, Italy
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18
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Antioxidant Effects of Walnut ( Juglans regia L.) Kernel and Walnut Septum Extract in a D-Galactose-Induced Aging Model and in Naturally Aged Rats. Antioxidants (Basel) 2020; 9:antiox9050424. [PMID: 32423149 PMCID: PMC7278598 DOI: 10.3390/antiox9050424] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/12/2020] [Accepted: 05/12/2020] [Indexed: 12/14/2022] Open
Abstract
Antioxidant dietary intervention is considered a potential strategy in delaying age-related dysfunctions. In this study of 56 days, we assessed the antioxidant effects of walnut kernel (WK) and walnut septum extract (WSE) in a D-galactose (D-gal)-induced aging model and in a naturally aged rat model. Young Wistar rats, treated with D-gal (1200 mg/week), and old rats received daily WK or WSE added to the feed. After 8 weeks, blood, liver, and brain samples were collected and hematological, biochemical, oxidative stress biomarkers, histological, and immunohistochemical analyses were performed. Moreover, acetylcholinesterase activity was investigated in brain homogenates. The outcomes demonstrated significant improvement in cellular antioxidant activity and/or decrease of reactive oxygen species, advanced glycation end products, nitric oxide, malondialdehyde, or increase of glutathione after WK or WSE intake in both models. Additionally, WSE showed hypoglycemic effect, and both WK and WSE lowered acetylcholinesterase activity. Both diets could protect neurons against the induced senescence and could reverse the pathological conditions in the physiological aged brain. Thus, dietary supplementation with WK or WSE can maintain the liver and brain health and reduce the risk of age-related diseases, as well as delaying the onset of aging processes.
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19
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Galiè S, Canudas S, Muralidharan J, García-Gavilán J, Bulló M, Salas-Salvadó J. Impact of Nutrition on Telomere Health: Systematic Review of Observational Cohort Studies and Randomized Clinical Trials. Adv Nutr 2020; 11:576-601. [PMID: 31688893 PMCID: PMC7231592 DOI: 10.1093/advances/nmz107] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/04/2019] [Accepted: 09/11/2019] [Indexed: 12/12/2022] Open
Abstract
Diet, physical activity, and other lifestyle factors have been implicated in the pathophysiology of several chronic diseases, but also in a lower total mortality and longer life expectancy. One of the mechanisms in which diet can reduce the risk of disease is with regard to its impact on telomeres. Telomere length (TL) is highly correlated to chronological age and metabolic status. Individuals with shorter telomeres are at higher risk of chronic diseases and mortality. Diet may influence TL by several mechanisms such as regulating oxidative stress and inflammation or modulating epigenetic reactions. The present systematic review aims to examine the results from epidemiologic and clinical trials conducted in humans evaluating the role of nutrients, food groups, and dietary patterns on TL. We also discuss the possible mechanisms of action that influence this process, with the perspective that TL could be a novel biomarker indicating the risk of metabolic disturbances and age-related diseases. The available evidence suggests that some antioxidant nutrients, the consumption of fruits and vegetables, and Mediterranean diet are mainly associated with longer telomeres. However, most of the evidence is based on high heterogenic observational studies and very few randomized clinical trials (RCTs). Therefore, the associations summarized in the present review need to be confirmed with larger prospective cohort studies and better-designed RCTs.
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Affiliation(s)
- Serena Galiè
- Human Nutrition Unit, Department of Biochemistry and Biotechnology, IISPV, Sant Joan de Reus University Hospital, Rovira i Virgili University, Reus, Spain,Physiopathology of Obesity and Nutrition Networking Biomedical Research Center (CIBEROBN), Carlos III Health Institute, Madrid, Spain
| | - Silvia Canudas
- Human Nutrition Unit, Department of Biochemistry and Biotechnology, IISPV, Sant Joan de Reus University Hospital, Rovira i Virgili University, Reus, Spain,Physiopathology of Obesity and Nutrition Networking Biomedical Research Center (CIBEROBN), Carlos III Health Institute, Madrid, Spain
| | - Jananee Muralidharan
- Human Nutrition Unit, Department of Biochemistry and Biotechnology, IISPV, Sant Joan de Reus University Hospital, Rovira i Virgili University, Reus, Spain,Physiopathology of Obesity and Nutrition Networking Biomedical Research Center (CIBEROBN), Carlos III Health Institute, Madrid, Spain
| | - Jesús García-Gavilán
- Human Nutrition Unit, Department of Biochemistry and Biotechnology, IISPV, Sant Joan de Reus University Hospital, Rovira i Virgili University, Reus, Spain,Physiopathology of Obesity and Nutrition Networking Biomedical Research Center (CIBEROBN), Carlos III Health Institute, Madrid, Spain
| | - Mònica Bulló
- Human Nutrition Unit, Department of Biochemistry and Biotechnology, IISPV, Sant Joan de Reus University Hospital, Rovira i Virgili University, Reus, Spain,Physiopathology of Obesity and Nutrition Networking Biomedical Research Center (CIBEROBN), Carlos III Health Institute, Madrid, Spain,Address correspondence to MB (e-mail: )
| | - Jordi Salas-Salvadó
- Human Nutrition Unit, Department of Biochemistry and Biotechnology, IISPV, Sant Joan de Reus University Hospital, Rovira i Virgili University, Reus, Spain,Physiopathology of Obesity and Nutrition Networking Biomedical Research Center (CIBEROBN), Carlos III Health Institute, Madrid, Spain,Address correspondence to JS-S (e-mail: )
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20
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Tucker LA. Walking and biologic ageing: Evidence based on NHANES telomere data. J Sports Sci 2020; 38:1026-1035. [PMID: 32175820 DOI: 10.1080/02640414.2020.1739896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The length of telomeres is an objective measure of biologic ageing. This study evaluated the extent minutes of walking per week are associated with leukocyte telomere length (LTL) in a random sample of 5,823 U.S. adults. The investigation was cross-sectional and data were obtained from the National Health and Nutrition Examination Survey (NHANES). LTL was measured by the quantitative polymerase chain reaction method. Walking minutes was calculated from walking frequency and duration measures. Results showed that for each year of chronological age, telomeres were 15.6 base pairs shorter (P < 0.0001). With walking minutes and LTL treated as continuous variables, the relationship was quadratic, not linear (F = 11.2, P = 0.0023). With walking time divided into three categories, adults who performed ≥ 150 minutes of walking per week had longer telomeres than those who did no regular walking, and those who did some, but less than the recommendation (F = 5.0, P = 0.0137). Regular walkers were estimated to have a biologic ageing advantage associated with 6.5-7.6 years less biologic ageing compared to non-walkers, after adjusting for covariates. Additional investigations designed to study causality and the mechanisms associated with the walking and LTL relationship are needed.
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Affiliation(s)
- Larry A Tucker
- Department of Exercise Sciences, Brigham Young University, Provo, UT, USA
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21
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Mendes J, Afonso C, Borges N, Santos A, Moreira P, Padrão P, Negrão R, Amaral TF. Adherence to a Mediterranean Dietary Pattern and Functional Parameters: A Cross-Sectional Study in an Older Population. J Nutr Health Aging 2020; 24:138-146. [PMID: 32003402 DOI: 10.1007/s12603-019-1300-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVES In older adults, diet and physical activity are among the most important behaviours that influence health. The Mediterranean Dietary Pattern has been related to longevity and can benefit physical function in older adults. The present study aims to quantify the association of adherence to a Mediterranean Dietary Pattern with physical functioning through by handgrip strength, as well as, with sedentary behaviour based on sitting time, in a sample of older adults. METHODS A cross-sectional study was conducted in 1,491 older adults ≥ 65 years old. The adherence or non-adherence to a Mediterranean Dietary Pattern was assessed using the previously validated and translated 14 item questionnaire, the PREDIMED (Prevención com Dieta Mediterránea). Handgrip strength was measured with a Jamar Dynamometer. Sitting time per day was used as an indicator of sedentary behaviour. Multinomial logistic regressions were performed to quantify the association of adherence to a Mediterranean Dietary Pattern with handgrip strength and sitting time. RESULTS Compared to participants who adhered to a Mediterranean Dietary Pattern, those who did not adhere to this diet have a significantly higher adjusted odds ratio for low handgrip strength [adjusted odds ratio: 1.50; 95% confidence interval: 1.09-2.05], as well as for longer sitting time [adjusted odds ratio: 1.43; 95% confidence interval: 1.04-1.96]. CONCLUSION In older adults, the non-adherence to a Mediterranean Dietary Pattern was associated with both lower values of handgrip strength and longer sitting time.
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Affiliation(s)
- J Mendes
- Joana Mendes, Faculty of Nutrition and Food Sciences, University of Porto, Porto, Portugal, Address: Rua Dr. Roberto Frias, 4200-465 Porto, Portugal, Telephone: +351 225 074 320/ Fax: +351 225 074 329, E-mail:
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22
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Anker MS, Anker SD, Coats AJS, von Haehling S. The Journal of Cachexia, Sarcopenia and Muscle stays the front-runner in geriatrics and gerontology. J Cachexia Sarcopenia Muscle 2019; 10:1151-1164. [PMID: 31821753 PMCID: PMC6903443 DOI: 10.1002/jcsm.12518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Markus S Anker
- Division of Cardiology and Metabolism, Department of Cardiology, Charité Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Berlin, Germany.,German Centre for Cardiovascular Research (DZHK) partner site Berlin, Berlin, Germany.,Department of Cardiology, Charité Campus Benjamin Franklin, Berlin, Germany
| | - Stefan D Anker
- Division of Cardiology and Metabolism, Department of Cardiology, Charité Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies (BCRT), Berlin, Germany.,German Centre for Cardiovascular Research (DZHK) partner site Berlin, Berlin, Germany.,Department of Cardiology (CVK), Charité Universitätsmedizin Berlin, Berlin, Germany.,Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | - Stephan von Haehling
- Department of Cardiology and Pneumology, Heart Center Göttingen, University of Göttingen Medical Center, Georg-August-University, Göttingen, Germany.,German Center for Cardiovascular Medicine (DZHK), partner site Göttingen, Göttingen, Germany
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23
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Crous-Bou M, Molinuevo JL, Sala-Vila A. Plant-Rich Dietary Patterns, Plant Foods and Nutrients, and Telomere Length. Adv Nutr 2019; 10:S296-S303. [PMID: 31728493 PMCID: PMC6855941 DOI: 10.1093/advances/nmz026] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 12/22/2018] [Indexed: 01/12/2023] Open
Abstract
The world's population is aging as a consequence of an increased global life expectancy. Identifying simple strategies to promote healthy aging (i.e., absence of major chronic diseases, preserved physical and cognitive functions, intact mental health, and good quality of life) have emerged as a major public health concern. Identifying biomarkers to better characterize the aging process is a research priority. Telomeres are repetitive DNA sequences at chromosome ends that prevent the loss of genomic DNA, protecting its physical integrity. Telomere length (TL) is considered a biomarker of aging: shorter telomeres are associated with a decreased life expectancy and increased rates of age-related chronic diseases. Telomere attrition has been shown to be accelerated by oxidative stress and inflammation. Since edible plants contain plenty of compounds with antioxidant and anti-inflammatory properties, it is plausible that their sustained consumption might help counteract telomere attrition. In this narrative review, we update evidence on the association between plant-rich dietary patterns and plant-based foods and TL. First, we summarize findings from observational studies on the association between TL and 1) adherence to plant-rich dietary patterns (mainly, but not only, focused on the Mediterranean diet); 2) consumption of seeds (mostly focused on nuts, grains, and coffee); and 3) intake of carotenoids, one of the plant-derived bioactives most studied in health and disease. Second, we summarize the main randomized controlled trials evaluating the effect on TL of dietary interventions involving either plant-rich dietary patterns or plant foods. Even though evidence from trials is very limited, several observational studies have reinforced the suggestive benefits of adherence to the Mediterranean diet (a plant-rich dietary pattern), consumption of seeds (and its derivatives), and dietary intake of carotenoids on TL, which further supports the research benefits of plant-rich dietary patterns and plant foods to promote health and longevity.
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Affiliation(s)
- Marta Crous-Bou
- BarcelonaBeta Brain Research Center, Pasqual Maragall Foundation, Barcelona, Spain,CIBER de Fragilidad y Envejecimiento (CIBERFES),Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA,Address correspondence to MC-B (e-mail: )
| | - José-Luis Molinuevo
- BarcelonaBeta Brain Research Center, Pasqual Maragall Foundation, Barcelona, Spain,CIBER de Fragilidad y Envejecimiento (CIBERFES)
| | - Aleix Sala-Vila
- BarcelonaBeta Brain Research Center, Pasqual Maragall Foundation, Barcelona, Spain,CIBER Fisiopatología de Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic de Barcelona, Barcelona, Spain,Address correspondence to AS-V (e-mail: )
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24
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Milk Fat Intake and Telomere Length in U.S. Women and Men: The Role of the Milk Fat Fraction. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1574021. [PMID: 31772698 PMCID: PMC6855010 DOI: 10.1155/2019/1574021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 10/04/2019] [Indexed: 12/24/2022]
Abstract
The associations between milk intake frequency and milk fat consumption and telomere length, an index of biological aging, were studied using an NHANES sample of 5,834 U.S. adults and a cross-sectional design. The milk consumption variables were assessed with the NHANES Diet Behavior and Nutrition questionnaire. The quantitative polymerase chain reaction method was used to measure leukocyte telomere length. Results showed that milk consumption frequency was not related to telomere length; however, there was a strong association between milk fat intake and telomere length. With the sample delimited to milk drinkers only, milk fat intake was linearly and inversely related to telomere length, after adjusting for the covariates (F = 8.6, P = 0.0066). For each 1 percentage point increase in milk fat consumed (e.g., 1% to 2%), adults had more than 4 years of additional biological aging. With milk fat intake divided into 5 categories (i.e., milk abstainers, nonfat, 1%, 2%, and full-fat milk), mean telomere lengths differed across the categories (F = 4.1, P = 0.0093). The mean telomere difference between the extremes of milk fat intake (nonfat vs. full-fat) was 145 base pairs, representing years of additional biological aging for full-fat milk consumers. Effect modification testing indicated that the milk fat and cellular aging association may be partly due to saturated fat intake differences across the milk fat groups. When the sample was delimited to adults reporting only high total saturated fat intake (tertile 3), the milk fat and telomere relationship was strong. However, when the sample was restricted to adults reporting only low saturated fat consumption (tertile 1), there was no relationship between milk fat intake and telomere length. Overall, the findings highlight an association of increased biological aging in U.S. adults who consumed high-fat milk. The results support the latest Dietary Guidelines for Americans (2015–2020), which recommend consumption of low-fat milk, but not high-fat milk, as part of a healthy diet.
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25
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Serum and Dietary Folate and Vitamin B 12 Levels Account for Differences in Cellular Aging: Evidence Based on Telomere Findings in 5581 U.S. Adults. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:4358717. [PMID: 31687079 PMCID: PMC6800923 DOI: 10.1155/2019/4358717] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/10/2019] [Accepted: 08/17/2019] [Indexed: 11/17/2022]
Abstract
Folate and vitamin B12 are essential for a variety of metabolic processes. Both micronutrients have been shown to reduce oxidative stress significantly. The present cross-sectional investigation evaluated the association between serum and dietary folate and vitamin B12 levels and leukocyte telomere length, an index of cellular aging influenced by oxidative stress. The study included 5581 adults from the National Health and Nutrition Examination Survey (NHANES). Because participants were randomly selected, results are generalizable to all civilian, noninstitutionalized U.S. adults. A blood draw provided DNA and serum folate and B12 information. The quantitative polymerase chain reaction method was used to measure telomere length. The Bio-Rad Quantaphase II folate and vitamin B12 radioassay kit was used to quantify levels of folate and vitamin B12. Dietary folate and vitamin B12 were assessed using a multipass 24 h recall. In some models, age, race, smoking pack-years, alcohol use, body mass index, total physical activity, hours fasted before the blood draw, and diabetes status were employed as covariates to minimize their influence. Findings showed that for each additional year of chronological age, telomeres were 15.6 base pairs shorter, on average (F = 378.8, p < 0.0001). Men had shorter telomeres than women after adjusting for all the covariates (F = 6.8, p = 0.0146). Serum (F = 10.5, p = 0.0030) and dietary (F = 5.0, p = 0.0325) folate concentrations were each linearly related to telomere length in women, but not in men, after controlling for age and race. Serum vitamin B12 and telomere length had a nonsignificant, inverse relationship in women, with age and race controlled (F = 2.8, p = 0.1056), but no relation in men. Dietary vitamin B12 was linearly related to telomere length in women, after adjusting for age and race (F = 4.3, p = 0.0468), but not in men. Overall, evidence indicates that folate and vitamin B12 levels, especially folate, account for meaningful differences in cell aging in women, but not in men.
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Rusu ME, Mocan A, Ferreira ICFR, Popa DS. Health Benefits of Nut Consumption in Middle-Aged and Elderly Population. Antioxidants (Basel) 2019; 8:antiox8080302. [PMID: 31409026 PMCID: PMC6719153 DOI: 10.3390/antiox8080302] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/22/2019] [Accepted: 07/31/2019] [Indexed: 12/14/2022] Open
Abstract
Aging is considered the major risk factor for most chronic disorders. Oxidative stress and chronic inflammation are two major contributors for cellular senescence, downregulation of stress response pathways with a decrease of protective cellular activity and accumulation of cellular damage, leading in time to age-related diseases. This review investigated the most recent clinical trials and cohort studies published in the last ten years, which presented the influence of tree nut and peanut antioxidant diets in preventing or delaying age-related diseases in middle-aged and elderly subjects (≥55 years old). Tree nut and peanut ingestion has the possibility to influence blood lipid count, biochemical and anthropometric parameters, endothelial function and inflammatory biomarkers, thereby positively affecting cardiometabolic morbidity and mortality, cancers, and cognitive disorders, mainly through the nuts’ healthy lipid profile and antioxidant and anti-inflammatory mechanisms of actions. Clinical evidence and scientific findings demonstrate the importance of diets characterized by a high intake of nuts and emphasize their potential in preventing age-related diseases, validating the addition of tree nuts and peanuts in the diet of older adults. Therefore, increased consumption of bioactive antioxidant compounds from nuts clearly impacts many risk factors related to aging and can extend health span and lifespan.
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Affiliation(s)
- Marius Emil Rusu
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, "Luliu Hatieganu" University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania
| | - Andrei Mocan
- Department of Pharmaceutical Botany, Faculty of Pharmacy, "Luliu Hatieganu" University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania
- Laboratory of Chromatography, ICHAT, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança (IPB), Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Daniela-Saveta Popa
- Department of Toxicology, Faculty of Pharmacy, "Iuliu Hatieganu" University of Medicine and Pharmacy, 8 Victor Babes, 400012 Cluj-Napoca, Romania
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Canudas S, Hernández-Alonso P, Galié S, Muralidharan J, Morell-Azanza L, Zalba G, García-Gavilán J, Martí A, Salas-Salvadó J, Bulló M. Pistachio consumption modulates DNA oxidation and genes related to telomere maintenance: a crossover randomized clinical trial. Am J Clin Nutr 2019; 109:1738-1745. [PMID: 31051499 PMCID: PMC6895461 DOI: 10.1093/ajcn/nqz048] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 03/11/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Telomere attrition may play an important role in the pathogenesis and severity of type 2 diabetes (T2D), increasing the probability of β cell senescence and leading to reduced cell mass and decreased insulin secretion. Nutrition and lifestyle are known factors modulating the aging process and insulin resistance/secretion, determining the risk of T2D. OBJECTIVES The aim of this study was to evaluate the effects of pistachio intake on telomere length and other cellular aging-related parameters of glucose and insulin metabolism. METHODS Forty-nine prediabetic subjects were included in a randomized crossover clinical trial. Subjects consumed a pistachio-supplemented diet (PD, 50 E% [energy percentage] carbohydrates and 33 E% fat, including 57 g pistachios/d) and an isocaloric control diet (CD, 55 E% carbohydrates and 30 E% fat) for 4 mo each, separated by a 2-wk washout period. DNA oxidation was evaluated by DNA damage (via 8-hydroxydeoxyguanosine). Leucocyte telomere length and gene expression related to either oxidation, telomere maintenance or glucose, and insulin metabolism were analyzed by multiplexed quantitative reverse transcriptase-polymerase chain reaction after the dietary intervention. RESULTS Compared with the CD, the PD reduced oxidative damage to DNA (mean: -3.5%; 95% CI: -8.07%, 1.05%; P = 0.009). Gene expression of 2 telomere-related genes (TERT and WRAP53) was significantly upregulated (164% and 53%) after the PD compared with the CD (P = 0.043 and P = 0.001, respectively). Interestingly, changes in TERT expression were negatively correlated to changes in fasting plasma glucose concentrations and in the homeostatic model assessment of insulin resistance. CONCLUSIONS Chronic pistachio consumption reduces oxidative damage to DNA and increases the gene expression of some telomere-associated genes. Lessening oxidative damage to DNA and telomerase expression through diet may represent an intriguing way to promote healthspan in humans, reversing certain deleterious metabolic consequences of prediabetes. This study was registered at clinicaltrials.gov as NCT01441921.
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Affiliation(s)
- Silvia Canudas
- Human Nutrition Unit, Faculty of Medicine and Health Sciences, Institut d'Investigació Sanitària Pere Virgili, Rovira i Virgili University, Reus, Spain,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain,Address correspondence to SC (e-mail: )
| | - Pablo Hernández-Alonso
- Human Nutrition Unit, Faculty of Medicine and Health Sciences, Institut d'Investigació Sanitària Pere Virgili, Rovira i Virgili University, Reus, Spain,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Serena Galié
- Human Nutrition Unit, Faculty of Medicine and Health Sciences, Institut d'Investigació Sanitària Pere Virgili, Rovira i Virgili University, Reus, Spain
| | - Jananee Muralidharan
- Human Nutrition Unit, Faculty of Medicine and Health Sciences, Institut d'Investigació Sanitària Pere Virgili, Rovira i Virgili University, Reus, Spain
| | - Lydia Morell-Azanza
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain,Department of Nutrition, Food Sciences and Physiology,IdiSNA, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain
| | - Guillermo Zalba
- Department of Biochemistry and Genetics, University of Navarra, Pamplona, Spain,IdiSNA, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain
| | - Jesús García-Gavilán
- Human Nutrition Unit, Faculty of Medicine and Health Sciences, Institut d'Investigació Sanitària Pere Virgili, Rovira i Virgili University, Reus, Spain,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Amelia Martí
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain,Department of Nutrition, Food Sciences and Physiology,IdiSNA, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain
| | - Jordi Salas-Salvadó
- Human Nutrition Unit, Faculty of Medicine and Health Sciences, Institut d'Investigació Sanitària Pere Virgili, Rovira i Virgili University, Reus, Spain,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Mònica Bulló
- Human Nutrition Unit, Faculty of Medicine and Health Sciences, Institut d'Investigació Sanitària Pere Virgili, Rovira i Virgili University, Reus, Spain,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain,>Address correspondence to MB (e-mail: )
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Rusu ME, Simedrea R, Gheldiu AM, Mocan A, Vlase L, Popa DS, Ferreira IC. Benefits of tree nut consumption on aging and age-related diseases: Mechanisms of actions. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Jurado-Fasoli L, Amaro-Gahete FJ, De-la-O A, Martinez-Tellez B, Ruiz JR, Gutiérrez Á, Castillo MJ. Adherence to the Mediterranean diet, dietary factors, and S-Klotho plasma levels in sedentary middle-aged adults. Exp Gerontol 2019; 119:25-32. [DOI: 10.1016/j.exger.2019.01.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/03/2019] [Accepted: 01/16/2019] [Indexed: 01/06/2023]
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Cold parenting is associated with cellular aging in offspring: A retrospective study. Biol Psychol 2019; 145:142-149. [PMID: 31014776 DOI: 10.1016/j.biopsycho.2019.03.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 01/30/2019] [Accepted: 03/22/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND Early life stress is a known risk factor for diseases and premature death. We tested whether parenting style impacts telomere length (TL), a cellular aging biomarker. METHODS Information on parents' style of parenting was obtained from 199 participants in the Adventist Health Study-1 (AHS-1) who 27+ years later also enrolled in the AHS-2 where blood was collected for relative TL (rTL) assessment. RESULTS Subjects describing their mothers' parenting style as cold had on average 25% smaller rTL compared to subjects not reporting a cold mother (1.89 vs 2.53). This association was greatest among those with less education, and those who stayed overweight/obese or put on weight during follow-up. CONCLUSIONS These results support previous findings that early life stress may have health implications by promoting cellular aging, and expands these stressors to include cold parenting during an individuals' formative years. Higher education and normal weight seem to provide some resilience.
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Nutrition Risk is Associated with Leukocyte Telomere Length in Middle-Aged Men and Women with at Least One Risk Factor for Cardiovascular Disease. Nutrients 2019; 11:nu11030508. [PMID: 30818839 PMCID: PMC6471290 DOI: 10.3390/nu11030508] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 02/17/2019] [Accepted: 02/22/2019] [Indexed: 12/25/2022] Open
Abstract
Poor diet quality has been associated with several age-related chronic conditions, but its relationship to telomere length, a biological marker of cellular aging, is unclear. The purpose of this cross-sectional study was to determine whether overall diet quality was associated with relative leukocyte telomere length (rLTL) in a sample (n = 96) of nonsmoking middle-aged adults in Appalachia with at least one risk factor for cardiovascular disease. Diet quality was assessed using the Healthy Eating Index (HEI-2015), the alternate Mediterranean diet score (aMed), and the Dietary Screening Tool (DST). Peripheral rLTL was measured by quantitative real-time polymerase chain reaction. The associations between potentially confounding sociodemographic, lifestyle and health-related factors and the first and fourth rLTL quartile groups were examined using Chi-square or Fisher’s Exact tests or logistic regression. The relationships between diet quality index scores and rLTL as a continuous variable were analyzed using simple linear regression and multivariate linear models, analogous to linear covariance analyses. The rLTL ranged from 0.46 to 1.49 (mean ± SEM was 1.02 ± 0.18). Smoking history, income level, and cardiovascular health (Life’s Simple 7) were associated with the lowest and highest quartiles of rLTL and were used as covariates. In adjusted and unadjusted models, participants considered “at nutrition risk” by the DST were more likely to have shorter rLTL than those “not at risk or at potential risk” (p = 0.004). However, there was no evidence that adherence to the 2015–2020 Dietary Guidelines for Americans or to a Mediterranean diet was associated with rLTL in this sample. Intervention studies are needed to determine if improving the diet quality of those at nutrition risk results in reduced telomere attrition over time.
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Davinelli S, Trichopoulou A, Corbi G, De Vivo I, Scapagnini G. The potential nutrigeroprotective role of Mediterranean diet and its functional components on telomere length dynamics. Ageing Res Rev 2019; 49:1-10. [PMID: 30448616 DOI: 10.1016/j.arr.2018.11.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/05/2018] [Accepted: 11/11/2018] [Indexed: 02/08/2023]
Abstract
The Mediterranean diet (MD) is a gold standard for nutrition and the most evidence-based diet to delay the onset of age-associated pathologies. Telomeres are the heterochromatic repeat regions found at the ends of eukaryotic chromosomes, whose length is considered a reliable hallmark of biological ageing. Telomere shortening is, at least in part, a modifiable factor and there is evidence that adherence to the MD is associated with longer telomeres. Data from several studies indicate an association between "inflammatory/oxidative status" and telomere length (TL). The MD, as a complex exposome with thousands of nutrients and phytochemicals, may positively influence telomere attrition by reducing inflammation and oxidative stress. However, it is unclear whether the protective effects on TL provided by the MD result from its individual constituents or some combination of these. Furthermore, these properties of the MD and its components are not yet fully validated by clinical endpoints in randomized trials or observational studies. Here, we summarize the data from experimental and population-based studies on the effects of the MD on TL maintenance. We will both highlight the possible role of the MD in the prevention of age-associated diseases, and attempt to identify certain aspects of the diet that are particularly important for telomere maintenance.
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Freitas-Simoes TM, Ros E, Sala-Vila A. Telomere length as a biomarker of accelerated aging: is it influenced by dietary intake? Curr Opin Clin Nutr Metab Care 2018; 21:430-436. [PMID: 30148739 DOI: 10.1097/mco.0000000000000506] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW There is increasing interest in exploring whether age-related diseases can be prevented by dietary means through nutrients or food bioactives, whole foods, or specific dietary patterns. Because of the slow nature of the aging process, biomarkers such as telomere length are helpful for this purpose. Here we update the developments in the area during the last 2 years. RECENT FINDINGS Most data stem from epidemiologic studies, often cross-sectional in design. Recent articles strengthened the link between consumption of sugar-sweetened beverages and telomere shortening, whereas a novel association between telomere length and drinking coffee has been uncovered. Controversy on meat consumption and telomere length persists, mostly because of the presumed different effects of total meat and processed meat. In general terms, increasing consumption of antioxidant-rich plant foods relates to maintained telomere length. Feeding intervention trials with outcomes on telomere length are few and thus far have contributed little to further knowledge on this topic. SUMMARY Epidemiologic studies provide support for the putative effects of diet components on telomere length and on the aging process in general. Dietary associations with telomere length should be confirmed with adequately powered randomized controlled trials.
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Affiliation(s)
| | - Emilio Ros
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic de Barcelona, Barcelona
- Ciber Fisiopatología de Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Aleix Sala-Vila
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Hospital Clínic de Barcelona, Barcelona
- Ciber Fisiopatología de Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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Dietary Fiber and Telomere Length in 5674 U.S. Adults: An NHANES Study of Biological Aging. Nutrients 2018; 10:nu10040400. [PMID: 29570620 PMCID: PMC5946185 DOI: 10.3390/nu10040400] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/28/2018] [Accepted: 03/21/2018] [Indexed: 01/01/2023] Open
Abstract
The relationship between fiber intake and telomere length was evaluated using a cross-sectional design and an NHANES sample of 5674 U.S. adults. Another purpose was to test the impact of potential confounders on the association. Fiber consumption was measured using a 24 h recall and telomere length was indexed using the quantitative polymerase chain reaction method. Overall, the U.S. adults had low fiber intake (median: 6.6 g per 1000 kcal)—less than one-half the recommendation of the Dietary Guidelines for Americans. With age, gender, race, housing status, and misreported energy intake controlled, the relationship between fiber intake per 1000 kcal and telomere length was linear (F = 9.5, p = 0.0045). Specifically, for each 1 g increment in fiber intake per 1000 kcal, telomeres were 8.3 base pairs longer. Because each additional year of chronological age was associated with telomeres that were 15.5 base pairs shorter, results suggest that a 10 g increase in fiber intake per 1000 kcal would correspond with telomeres that are 83 base pairs longer. On average, this would equate to 5.4 fewer years of biologic aging (83 ÷ 15.5). With smoking, BMI, alcohol use, and physical activity controlled, as well as the other covariates, each 10 g increment in fiber accounted for telomeres that were 67 base pairs longer (F = 7.6, p = 0.0101), a biologic aging difference of about 4.3 years. In conclusion, significant fiber consumption accounts for longer telomeres and less biologic aging than lower levels of fiber intake.
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Entringer S, de Punder K, Buss C, Wadhwa PD. The fetal programming of telomere biology hypothesis: an update. Philos Trans R Soc Lond B Biol Sci 2018; 373:20170151. [PMID: 29335381 PMCID: PMC5784074 DOI: 10.1098/rstb.2017.0151] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2017] [Indexed: 12/17/2022] Open
Abstract
Research on mechanisms underlying fetal programming of health and disease risk has focused primarily on processes that are specific to cell types, organs or phenotypes of interest. However, the observation that developmental conditions concomitantly influence a diverse set of phenotypes, the majority of which are implicated in age-related disorders, raises the possibility that such developmental conditions may additionally exert effects via a common underlying mechanism that involves cellular/molecular ageing-related processes. In this context, we submit that telomere biology represents a process of particular interest in humans because, firstly, this system represents among the most salient antecedent cellular phenotypes for common age-related disorders; secondly, its initial (newborn) setting appears to be particularly important for its long-term effects; and thirdly, its initial setting appears to be plastic and under developmental regulation. We propose that the effects of suboptimal intrauterine conditions on the initial setting of telomere length and telomerase expression/activity capacity may be mediated by the programming actions of stress-related maternal-placental-fetal oxidative, immune, endocrine and metabolic pathways in a manner that may ultimately accelerate cellular dysfunction, ageing and disease susceptibility over the lifespan. This perspectives paper provides an overview of each of the elements underlying this hypothesis, with an emphasis on recent developments, findings and future directions.This article is part of the theme issue 'Understanding diversity in telomere dynamics'.
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Affiliation(s)
- Sonja Entringer
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, Berlin, Germany
- Department of Pediatrics, University of California, School of Medicine, Irvine, CA, USA
- Development, Health and Disease Research Program, University of California, School of Medicine, Irvine, CA, USA
| | - Karin de Punder
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, Berlin, Germany
| | - Claudia Buss
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, Berlin, Germany
- Department of Pediatrics, University of California, School of Medicine, Irvine, CA, USA
- Development, Health and Disease Research Program, University of California, School of Medicine, Irvine, CA, USA
| | - Pathik D Wadhwa
- Department of Psychiatry and Human Behavior, University of California, School of Medicine, Irvine, CA, USA
- Department of Obstetrics and Gynecology, University of California, School of Medicine, Irvine, CA, USA
- Department of Pediatrics, University of California, School of Medicine, Irvine, CA, USA
- Department of Epidemiology, University of California, School of Medicine, Irvine, CA, USA
- Development, Health and Disease Research Program, University of California, School of Medicine, Irvine, CA, USA
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