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Blank HM, Hammer SE, Boatright L, Roberts C, Heyden KE, Nagarajan A, Tsuchiya M, Brun M, Johnson CD, Stover PJ, Sitcheran R, Kennedy BK, Adams LG, Kaeberlein M, Field MS, Threadgill DW, Andrews-Polymenis HL, Polymenis M. Late-life dietary folate restriction reduces biosynthetic processes without compromising healthspan in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.12.575290. [PMID: 38260683 PMCID: PMC10802571 DOI: 10.1101/2024.01.12.575290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Folate is a vitamin required for cell growth and is present in fortified foods in the form of folic acid to prevent congenital abnormalities. The impact of low folate status on life-long health is poorly understood. We found that limiting folate levels with the folate antagonist methotrexate increased the lifespan of yeast and worms. We then restricted folate intake in aged mice and measured various health metrics, metabolites, and gene expression signatures. Limiting folate intake decreased anabolic biosynthetic processes in mice and enhanced metabolic plasticity. Despite reduced serum folate levels in mice with limited folic acid intake, these animals maintained their weight and adiposity late in life, and we did not observe adverse health outcomes. These results argue that the effectiveness of folate dietary interventions may vary depending on an individual's age and sex. A higher folate intake is advantageous during the early stages of life to support cell divisions needed for proper development. However, a lower folate intake later in life may result in healthier aging.
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Affiliation(s)
- Heidi M. Blank
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
| | - Staci E. Hammer
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
| | - Laurel Boatright
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
- Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, Bryan, United States
| | - Courtney Roberts
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
| | - Katarina E. Heyden
- Division of Nutritional Sciences, Cornell University, Ithaca, United States
| | - Aravindh Nagarajan
- Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, Bryan, United States
- Interdisciplinary Program in Genetics, Texas A&M University, College Station, United States
| | - Mitsuhiro Tsuchiya
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, United States
| | - Marcel Brun
- Texas A&M Agrilife Research, Genomics and Bioinformatics Service, College Station, United States
| | - Charles D. Johnson
- Texas A&M Agrilife Research, Genomics and Bioinformatics Service, College Station, United States
| | - Patrick J. Stover
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
- Institute for Advancing Health through Agriculture, Texas A&M University, College Station, United States
- Department of Nutrition, Texas A&M University, College Station, United States
| | - Raquel Sitcheran
- Department of Cell Biology and Genetics, School of Medicine, Texas A&M University Health Science Center, Bryan, United States
| | - Brian K. Kennedy
- Departments of Biochemistry and Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Centre for Healthy Ageing, National University of Singapore, National University Health System, Singapore, Singapore
| | - L. Garry Adams
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M, College Station, Texas, USA
| | - Matt Kaeberlein
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, United States
- Optispan, Inc., Seattle, United States
| | - Martha S. Field
- Division of Nutritional Sciences, Cornell University, Ithaca, United States
| | - David W. Threadgill
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
- Interdisciplinary Program in Genetics, Texas A&M University, College Station, United States
- Department of Nutrition, Texas A&M University, College Station, United States
- Texas A&M Institute for Genome Sciences and Society, Texas A&M University, College Station, United States
| | - Helene L. Andrews-Polymenis
- Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, Bryan, United States
- Interdisciplinary Program in Genetics, Texas A&M University, College Station, United States
| | - Michael Polymenis
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
- Interdisciplinary Program in Genetics, Texas A&M University, College Station, United States
- Institute for Advancing Health through Agriculture, Texas A&M University, College Station, United States
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Zhang J, Du Y, Che X, Xia S, Zhang L, Liu J. Central adiposity increases the odds for plasma folate deficiency among Chinese women of reproductive age. Front Public Health 2022; 10:1000542. [PMID: 36311613 PMCID: PMC9614314 DOI: 10.3389/fpubh.2022.1000542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/28/2022] [Indexed: 01/26/2023] Open
Abstract
Objective To explore the association between adiposity and plasma folate deficiency odds among women of reproductive age in China. Methods A cross-sectional survey on nutritional status among women of reproductive aged 18-30 years in 2005-2006 in China was conducted. General adiposity was defined as body mass index (BMI) ≥24 kg/m2, and central adiposity was defined as waist circumference >80 cm. A plasma folate concentration <10.5 nmol/L (measured through microbiological assay) was defined as plasma folate deficiency. Odds ratios (ORs) and 95% confidence intervals (CIs) for plasma folate deficiency were calculated using a logistic regression model, with adjustment for potential confounders. Results A total of 3,076 women of reproductive age were included in the final analysis. Compared to women with normal BMI and WC, women with both general and central adiposity had the highest odds for plasma folate deficiency (OR = 3.107, 95% CI: 1.819-5.307). Women with exclusively central adiposity had excess odds for plasma folate deficiency (WC > 80 cm, BMI <24 kg/m2; OR = 2.448, 95% CI: 1.144-5.241), which was higher than women with exclusively general adiposity (BMI ≥ 24 kg/m2, WC ≤ 80 cm; OR = 1.709, 95% CI: 1.259-2.319). The combined use of BMI and WC can detect more women (11.7%) at higher plasma folate deficiency odds than either used alone. Conclusions Women with central adiposity in normal weight have higher odds for plasma folate deficiency than those with general obesity only. Early screening for central adiposity among women of reproductive age would be meaningful to prevent folate deficiency and improve life-cycle health.
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Affiliation(s)
- Jinjuan Zhang
- Department of Critical Care Medicine, Peking University People's Hospital, Beijing, China
- Institute of Reproductive and Child Health/National Health Commission Key Laboratory of Reproductive Health, Peking University, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Yushan Du
- Institute of Reproductive and Child Health/National Health Commission Key Laboratory of Reproductive Health, Peking University, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Xiaoyu Che
- Institute of Reproductive and Child Health/National Health Commission Key Laboratory of Reproductive Health, Peking University, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Shuangbo Xia
- Institute of Reproductive and Child Health/National Health Commission Key Laboratory of Reproductive Health, Peking University, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Le Zhang
- Institute of Reproductive and Child Health/National Health Commission Key Laboratory of Reproductive Health, Peking University, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Jufen Liu
- Institute of Reproductive and Child Health/National Health Commission Key Laboratory of Reproductive Health, Peking University, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
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Heybeli C, Soysal P, Oktan MA, Smith L, Çelik A, Kazancioglu R. Associations between nutritional factors and excessive daytime sleepiness in older patients with chronic kidney disease. Aging Clin Exp Res 2022; 34:573-581. [PMID: 34448151 DOI: 10.1007/s40520-021-01966-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/17/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND Excessive daytime sleepiness (EDS) is prevalent in not only older adults, but also patients with chronic kidney disease (CKD), and is associated with higher risks of morbidity and mortality. AIMS The aim of the present study is to determine associations between EDS and nutritional status and serum nutrient levels in older patients with CKD. METHODS This cross-sectional study included 367 patients (aged ≥ 65 years) with CKD (eGFR < 60 ml/min/1.73 m2 and/or > 30 mg/day of albuminuria for > 3 months). EDS was recorded using the Epworth Sleepiness Scale (a score of ≥ 11). Malnutrition was diagnosed according to the Mini Nutritional Assessment (MNA) tool (a score of < 17). RESULTS The mean age was 81 ± 7 years, and 248 (67%) were female. EDS was seen in 99 (26.9%) patients. Those with EDS had significantly lower MNA scores and more frequent malnutrition than those without EDS (p < 0.05). In multivariable analysis adjusted for age, sex, cerebrovascular disease, dementia, number of drugs, and number of urinations at night, and the Charlson Comorbidity Index the relationship between malnutrition and EDS persisted (OR 2.58, 95% CI 1.38-4.83, p = 0.003). There was no significant difference between the presence of EDS and serum levels or deficiencies of vitamin D, vitamin B12, and folate (p > 0.05). CONCLUSIONS EDS is associated with malnutrition in older patients with CKD. Therefore, EDS and nutritional status should be evaluated together in clinical practice. However, future studies are needed to determine the direction of the association between malnutrition and EDS and to evaluate if dietary intervention can improve EDS.
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Affiliation(s)
- Cihan Heybeli
- Division of Nephrology, Başkent University Faculty of Medicine, İzmir Zübeyde Hanım Application and Research Centre, İzmir, Turkey.
| | - Pinar Soysal
- Division of Geriatric Medicine, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
| | - Mehmet Asi Oktan
- Division of Nephrology, Başkent University Faculty of Medicine, İzmir Zübeyde Hanım Application and Research Centre, İzmir, Turkey
| | - Lee Smith
- The Cambridge Centre for Sport and Exercise Science, Anglia Ruskin University, Cambridge, UK
| | - Ali Çelik
- Division of Nephrology, Başkent University Faculty of Medicine, İzmir Zübeyde Hanım Application and Research Centre, İzmir, Turkey
| | - Rumeyza Kazancioglu
- Division of Nephrology, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey
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Mozaffari H, Askari M, Bellissimo N, Azadbakht L. Associations between dietary intake of B vitamins and cardiovascular risk factors in elderly men: A cross-sectional study. Int J Clin Pract 2021; 75:e14691. [PMID: 34331825 DOI: 10.1111/ijcp.14691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 07/28/2021] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVE Low intake of B vitamins can lead to hyperhomocysteinaemia, which is reported as a risk factor for cardiovascular disease (CVD). However, little is known about this relationship. Therefore, we decided to examine the association between dietary intake of B vitamins and cardiovascular risk factors in elderly men. METHODS The present cross-sectional study consisted of 357 elderly men. Dietary intake was assessed using a validated and reliable food frequency questionnaire. All biochemical factors [fasting blood sugar (FBS), triglyceride (TG), high-sensitivity C-reactive protein (hs-CRP), interleukin 6 (IL-6) and tumour necrosis factor-α (TNF-α)], waist circumference (WC) and blood pressure (BP) were assessed using standard methods. RESULTS A significant inverse association was observed between high dietary intake of total B vitamins (ORTotal B vitamins : 0.30; 95% CI: 0.10, 0.86; P = .01) and vitamin B9 (ORvitamin B9 : 0.20; 95% CI: 0.02, 0.52; P = .002) with high WC. Furthermore, an inverse association was observed between high dietary intake of vitamin B6 (ORvitamin B6 : 0.28; 95% CI: 0.08, 1.00; P = .05) and vitamin B9 (ORvitamin B9 : 0.20; 95% CI: 0.06, 0.70; P = .01) with hs-CRP level. CONCLUSIONS In elderly men, a high dietary intake of total B vitamins and vitamin B9 was associated with lower odds of having a high WC. Similarly, high dietary intake of vitamin B6 and B9 was associated with lower odds of having a high hs-CRP level.
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Affiliation(s)
- Hadis Mozaffari
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Askari
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Nick Bellissimo
- School of Nutrition, Ryerson University, Toronto, ON, Canada
| | - Leila Azadbakht
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
- Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Science, Isfahan, Iran
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Bloom I, Pilgrim A, Jameson KA, Dennison EM, Sayer AA, Roberts HC, Cooper C, Ward KA, Robinson SM. The relationship of nutritional risk with diet quality and health outcomes in community-dwelling older adults. Aging Clin Exp Res 2021; 33:2767-2776. [PMID: 34255296 PMCID: PMC8531124 DOI: 10.1007/s40520-021-01824-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 02/22/2021] [Indexed: 11/24/2022]
Abstract
Objectives To identify early nutritional risk in older populations, simple screening approaches are needed. This study aimed to compare nutrition risk scores, calculated from a short checklist, with diet quality and health outcomes, both at baseline and prospectively over a 2.5-year follow-up period; the association between baseline scores and risk of mortality over the follow-up period was assessed. Methods The study included 86 community-dwelling older adults in Southampton, UK, recruited from outpatient clinics. At both assessments, hand grip strength was measured using a Jamar dynamometer. Diet was assessed using a short validated food frequency questionnaire; derived ‘prudent’ diet scores described diet quality. Body mass index (BMI) was calculated and weight loss was self-reported. Nutrition risk scores were calculated from a checklist adapted from the DETERMINE (range 0–17). Results The mean age of participants at baseline (n = 86) was 78 (SD 8) years; half (53%) scored ‘moderate’ or ‘high’ nutritional risk, using the checklist adapted from DETERMINE. In cross-sectional analyses, after adjusting for age, sex and education, higher nutrition risk scores were associated with lower grip strength [difference in grip strength: − 0.09, 95% CI (− 0.17, − 0.02) SD per unit increase in nutrition risk score, p = 0.017] and poorer diet quality [prudent diet score: − 0.12, 95% CI (− 0.21, − 0.02) SD, p = 0.013]. The association with diet quality was robust to further adjustment for number of comorbidities, whereas the association with grip strength was attenuated. Nutrition risk scores were not related to reported weight loss or BMI at baseline. In longitudinal analyses there was an association between baseline nutrition risk score and lower grip strength at follow-up [fully-adjusted model: − 0.12, 95% CI (− 0.23, − 0.02) SD, p = 0.024]. Baseline nutrition risk score was also associated with greater risk of mortality [unadjusted hazard ratio per unit increase in score: 1.29 (1.01, 1.63), p = 0.039]; however, this association was attenuated after adjustment for sex and age. Conclusions Cross-sectional associations between higher nutrition risk scores, assessed from a short checklist, and poorer diet quality suggest that this approach may hold promise as a simple way of screening older populations. Further larger prospective studies are needed to explore the predictive ability of this screening approach and its potential to detect nutritional risk in older adults.
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Affiliation(s)
- Ilse Bloom
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, SO16 6YD, UK.
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD, UK.
| | - Anna Pilgrim
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, SO16 6YD, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD, UK
| | - Karen A Jameson
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, SO16 6YD, UK
| | - Elaine M Dennison
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, SO16 6YD, UK
| | - Avan A Sayer
- AGE Research Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
- NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, NE4 5PL, UK
- Academic Geriatric Medicine, University of Southampton, Southampton, SO16 6YD, UK
| | - Helen C Roberts
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD, UK
- Academic Geriatric Medicine, University of Southampton, Southampton, SO16 6YD, UK
- NIHR Applied Research Collaboration (NIHR ARC) Wessex, University of Southampton, Southampton, SO16 7NP, UK
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, SO16 6YD, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD, UK
- NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, OX3 7LD, UK
| | - Kate A Ward
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, SO16 6YD, UK
| | - Sian M Robinson
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, SO16 6YD, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD, UK
- AGE Research Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
- NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, NE4 5PL, UK
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Koc Okudur S, Soysal P. Excessive Daytime Sleepiness is Associated With Malnutrition, Dysphagia, and Vitamin D Deficiency in Older Adults. J Am Med Dir Assoc 2021; 22:2134-2139. [PMID: 34181909 DOI: 10.1016/j.jamda.2021.05.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/20/2021] [Accepted: 05/26/2021] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Both excessive daytime sleepiness (EDS) and nutritional deficiencies are common and can cause similar negative consequences, such as falls, and cognitive impairment in older adults, but there is no study investigating the relationship between the two. The aim of this study is to investigate the relationship between malnutrition/micronutrient deficiency and EDS in patients with and without dementia. DESIGN Cross-sectional study. SETTING AND PARTICIPANTS A total of 800 outpatients (243 of whom had dementia), aged ≥65 years, were included. METHODS All patients underwent comprehensive geriatric assessment. Mini Nutritional Assessment (MNA) scores >23.5, 17-23.5, or <17 were categorized as well-nourished, malnutrition risk, and malnutrition, respectively. Eating Assessment Tool score of ≥3 was accepted as dysphagia. Serum vitamin B12, vitamin D, and folate deficiencies were also evaluated. The Epworth Sleepiness Scale score of ≥11 points indicated EDS. RESULTS The mean age was 79.1±7.5 years. The prevalence of EDS was 22.75%. In patients with dementia, those with EDS had significantly lower MNA scores and more frequent dysphagia (P < .05). In patients without dementia, those with EDS have lower MNA scores than those without EDS; malnutrition, dysphagia, and vitamin D deficiency were higher (P < .05). In multivariable analysis adjusted for age, gender, living status, ischemic heart disease, cerebrovascular events, polypharmacy, dementia, and insomnia, the association between EDS and malnutrition [odds ratio (OR) 1.73, 95% confidence interval (CI) 1.37-2.20], dysphagia (OR 2.01, 95% CI 1.33-2.88), and vitamin D deficiency (OR 2.0, 95% CI 1.12-3.55) persisted. CONCLUSIONS AND IMPLICATIONS There is a significant relationship between EDS and malnutrition risk, dysphagia, and vitamin D deficiency in older adults. Therefore, when examining an older patient with EDS, dysphagia, malnutrition, and vitamin D levels should be evaluated, or EDS should be investigated in an older patient with malnutrition, dysphagia, and vitamin D deficiency. Thus, it will be possible to manage all these conditions more effectively.
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Affiliation(s)
- Saadet Koc Okudur
- Department of Geriatric Medicine, Manisa State Hospital, Manisa, Turkey
| | - Pinar Soysal
- Department of Geriatric Medicine, Faculty of Medicine, Bezmialem Vakif University, Istanbul, Turkey.
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The Relationship Between Dementia Subtypes and Nutritional Parameters in Older Adults. J Am Med Dir Assoc 2020; 21:1430-1435. [DOI: 10.1016/j.jamda.2020.06.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 06/25/2020] [Accepted: 06/28/2020] [Indexed: 01/31/2023]
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Jungert A, Zenke-Philippi C, Neuhäuser-Berthold M. Dynamics and interactions of cobalamin and folate status during advanced aging - a longitudinal study in a community-dwelling cohort with multiple follow-ups. Nutr J 2020; 19:64. [PMID: 32615974 PMCID: PMC7333253 DOI: 10.1186/s12937-020-00576-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 06/14/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Older people are reported to be prone to imbalances between cobalamin and folate status with possible adverse effects on health. This longitudinal study investigates dynamics and interactions of cobalamin and folate status in a cohort of community-dwelling older adults by considering possible influencing factors. METHODS In total, 332 subjects ≥ 60 years were investigated over a mean observation period of 12 years. Data collection included serum cobalamin, folate and creatinine, dietary intakes of cobalamin, folate and alcohol, use of supplements, body composition, smoking behavior, and diseases. Linear mixed-effects models with repeated measurements were used to investigate the influence of variables on serum cobalamin and folate. RESULTS At baseline, median cobalamin intake exceeded the dietary reference value (DRV), while median folate intake was considerably below DRV. In most subjects, serum concentrations of both vitamins were within reference ranges. For serum cobalamin, apart from supplement use (Parameter estimate [95% confidence interval]: 130.17 [53.32, 207.01]), the main positive predictor was serum folate (4.63 [2.64, 6.62]). For serum folate, serum creatinine (10.85 [4.85, 16.86]), use of supplements (7.86 [5.05, 10.67]), serum cobalamin (0.01 [< 0.01, 0.01]), and dietary folate intake (0.02 [0.01, 0.03]) were positive predictors. No main effects of age, sex, body composition, alcohol intake or smoking were found after adjusting for simultaneous inference. CONCLUSIONS Advancing age, per se, is no risk factor for a decline in serum concentrations of cobalamin or folate in subjects ≥ 60 years. Suboptimal folate intake may limit the function of folate regarding the supply of methyl groups for methylation of cobalamin and subsequent creatine biosynthesis. The positive association of serum creatinine with folate deserves further exploration with regard to its possible relevance for maintaining energy dependent functional integrity in the course of ageing.
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Affiliation(s)
- Alexandra Jungert
- Institute of Nutritional Science, Justus Liebig University, Goethestrasse 55, D-35390 Giessen, Germany
- Present address: Interdisciplinary Research Center for Biosystems, Land Use and Nutrition (IFZ), Justus Liebig University, Heinrich-Buff-Ring 26-32, D-35392 Giessen, Germany
| | - Carola Zenke-Philippi
- Biometry and Population Genetics, Institute of Agronomy and Plant Breeding II, Interdisciplinary Research Center for Biosystems, Land Use and Nutrition (IFZ), Justus Liebig University, Heinrich-Buff-Ring 26-32, D-35392 Giessen, Germany
| | - Monika Neuhäuser-Berthold
- Institute of Nutritional Science, Justus Liebig University, Goethestrasse 55, D-35390 Giessen, Germany
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Micronutrient deficiencies may be associated with both cognitive impairment and chemotherapy toxicity in geriatric oncologic patients. J Geriatr Oncol 2020; 11:902-903. [DOI: 10.1016/j.jgo.2020.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 11/18/2022]
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Soysal P, Smith L, Dokuzlar O, Isik AT. Relationship Between Nutritional Status and Insomnia Severity in Older Adults. J Am Med Dir Assoc 2019; 20:1593-1598. [DOI: 10.1016/j.jamda.2019.03.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/23/2019] [Accepted: 03/26/2019] [Indexed: 12/23/2022]
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