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Perlegos AE, Byrns CN, Bonini NM. Cell type-specific regulation of m 6 A modified RNAs in the aging Drosophila brain. Aging Cell 2024; 23:e14076. [PMID: 38205931 DOI: 10.1111/acel.14076] [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] [Received: 08/15/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
The aging brain is highly vulnerable to cellular stress, and neurons employ numerous mechanisms to combat neurotoxic proteins and promote healthy brain aging. The RNA modification m6 A is highly enriched in the Drosophila brain and is critical for the acute heat stress response of the brain. Here we examine m6 A in the fly brain with the chronic stresses of aging and degenerative disease. m6 A levels dynamically increased with both age and disease in the brain, marking integral neuronal identity and signaling pathway transcripts that decline in level with age and disease. Unexpectedly, there is opposing impact of m6 A transcripts in neurons versus glia, which conferred different outcomes on animal health span upon Mettl3 knockdown to reduce m6 A: whereas Mettl3 function is normally beneficial to neurons, it is deleterious to glia. Moreover, knockdown of Mettl3 in glial tauopathy reduced tau pathology and increased animal survival. These findings provide mechanistic insight into regulation of m6 A modified transcripts with age and disease, highlighting an overall beneficial function of Mettl3 in neurons in response to chronic stresses, versus a deleterious impact in glia.
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Affiliation(s)
- Alexandra E Perlegos
- Neuroscience Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - China N Byrns
- Neuroscience Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Medical Scientist Training Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Nancy M Bonini
- Neuroscience Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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2
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Zhao P, Han F, Liang X, Meng L, Yu B, Liu X, Tian J. Causal Effects of Basal Metabolic Rate on Cardiovascular Disease: A Bidirectional Mendelian Randomization Study. J Am Heart Assoc 2024; 13:e031447. [PMID: 38156559 PMCID: PMC10863838 DOI: 10.1161/jaha.123.031447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 11/28/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND Despite the health effects of basal metabolic rate (BMR), the causal effect of BMR on cardiovascular diseases (CVDs) remains undetermined. To elucidate the causal nature, Mendelian randomization (MR) analyses were performed. METHODS AND RESULTS Summary genome-wide association statistics regarding BMR and 5 CVDs were obtained from European databases. A 2-sample bidirectional MR was performed to assess the causal association between BMR and CVDs. The causal effects were estimated using inverse variance weighting. Simultaneously, multiple sensitivity analyses were performed to validate the robustness and reliability of the results. Our results indicated that genetically predicted BMR was significantly positively associated with the risk of heart failure (odds ratio, 1.53 [95% CI, 1.39-1.67]; P<0.001), atrial fibrillation and flutter (odds ratio, 2.12 [95% CI, 1.87-2.40]; P<0.001), and aortic aneurysm (odds ratio, 1.64 [95% CI, 1.41-1.92]; P<0.001). Genetically predicted BMR may not be causally associated with coronary artery disease and ischemic stroke risk. Furthermore, a significant causal effect of CVDs on BMR was not found in the reverse MR analysis. Multivariable MR was applied to further assess the direct effect of BMR on CVDs. Multivariable MR indicated that a high level of BMR still increased the risk of heart failure and atrial fibrillation and flutter after adjustment independent of possible confounders. However, the P value of aortic aneurysm was not significant. CONCLUSIONS The present study provides robust evidence that genetically predicted BMR is independently causally associated with heart failure and atrial fibrillation and flutter but not vice versa. These findings have implications for the prevention and treatment of CVDs in clinical practice.
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Affiliation(s)
- Peng Zhao
- Department of CardiologyThe Second Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Myocardial Ischemia, Ministry of EducationHarbinChina
| | - Feiyuan Han
- Department of CardiologyThe Second Affiliated Hospital of Harbin Medical UniversityHarbinChina
| | - Xinyu Liang
- Department of CardiologyThe Second Affiliated Hospital of Harbin Medical UniversityHarbinChina
| | - Li Meng
- Department of CardiologyThe Second Affiliated Hospital of Harbin Medical UniversityHarbinChina
| | - Bo Yu
- Department of CardiologyThe Second Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Myocardial Ischemia, Ministry of EducationHarbinChina
- State Key Laboratory of Frigid Zone Cardiovascular DiseasesHarbin Medical UniversityHarbinChina
| | - Xinxin Liu
- Department of CardiologyThe Second Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Myocardial Ischemia, Ministry of EducationHarbinChina
- State Key Laboratory of Frigid Zone Cardiovascular DiseasesHarbin Medical UniversityHarbinChina
| | - Jinwei Tian
- Department of CardiologyThe Second Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Myocardial Ischemia, Ministry of EducationHarbinChina
- State Key Laboratory of Frigid Zone Cardiovascular DiseasesHarbin Medical UniversityHarbinChina
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3
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McNulty KE, Creevy KE, Fitzpatrick A, Wilkins V, Barnett BG, Ruple A. Development and validation of a novel instrument to capture companion dog mortality data: the Dog Aging Project End of Life Survey. J Am Vet Med Assoc 2023; 261:1326-1336. [PMID: 37179051 PMCID: PMC11131384 DOI: 10.2460/javma.23.02.0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 04/17/2023] [Indexed: 05/15/2023]
Abstract
OBJECTIVE The researchers and clinicians within the Dog Aging Project (DAP), a longitudinal cohort study of aging in companion dogs, created and validated a novel survey instrument titled the End of Life Survey (EOLS) to gather owner-reported mortality data about companion dogs. SAMPLE Bereaved dog owners who participated in the refinement, face validity assessment, or reliability assessment of the EOLS (n = 42) and/or completed the entire survey between January 20 and March 24, 2021 (646). PROCEDURES The EOLS was created and modified by veterinary health professionals and human gerontology experts using published literature, clinical veterinary experience, previously created DAP surveys, and feedback from a pilot study conducted with bereaved dog owners. The EOLS was subjected to qualitative validation methods and post hoc free-text analysis to evaluate its ability to thoroughly capture scientifically relevant aspects of companion dogs' deaths. RESULTS The EOLS was well received with excellent face validity as assessed by dog owners and experts. The EOLS had fair to substantial reliability for the 3 validation themes-cause of death (κ = 0.73; 95% CI, 0.5 to 0.95), perimortem quality of life (κ = 0.49; 95% CI, 0.26 to 0.73), and reason for euthanasia (κ = 0.3; 95% CI, 0.08 to 0.52)-and had no need for any substantial content alterations based on free-text analysis. CLINICAL RELEVANCE The EOLS has proven to be a well-accepted, comprehensive, and valid instrument for capturing owner-reported companion dog mortality data and has the potential to enhance veterinarians' ability to care for the aging dog population by illuminating their understanding of companion dogs' end-of-life experiences.
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Affiliation(s)
- Kellyn E. McNulty
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX
| | - Kate E. Creevy
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX
| | - Annette Fitzpatrick
- Department of Family Medicine, School of Medicine, University of Washington, Seattle, WA
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA
| | - Vanessa Wilkins
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX
| | - Brian G. Barnett
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA
| | | | - Audrey Ruple
- Department of Population Health Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA
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4
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Bobba-Alves N, Sturm G, Lin J, Ware SA, Karan KR, Monzel AS, Bris C, Procaccio V, Lenaers G, Higgins-Chen A, Levine M, Horvath S, Santhanam BS, Kaufman BA, Hirano M, Epel E, Picard M. Cellular allostatic load is linked to increased energy expenditure and accelerated biological aging. Psychoneuroendocrinology 2023; 155:106322. [PMID: 37423094 PMCID: PMC10528419 DOI: 10.1016/j.psyneuen.2023.106322] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/08/2023] [Accepted: 06/10/2023] [Indexed: 07/11/2023]
Abstract
Stress triggers anticipatory physiological responses that promote survival, a phenomenon termed allostasis. However, the chronic activation of energy-dependent allostatic responses results in allostatic load, a dysregulated state that predicts functional decline, accelerates aging, and increases mortality in humans. The energetic cost and cellular basis for the damaging effects of allostatic load have not been defined. Here, by longitudinally profiling three unrelated primary human fibroblast lines across their lifespan, we find that chronic glucocorticoid exposure increases cellular energy expenditure by ∼60%, along with a metabolic shift from glycolysis to mitochondrial oxidative phosphorylation (OxPhos). This state of stress-induced hypermetabolism is linked to mtDNA instability, non-linearly affects age-related cytokines secretion, and accelerates cellular aging based on DNA methylation clocks, telomere shortening rate, and reduced lifespan. Pharmacologically normalizing OxPhos activity while further increasing energy expenditure exacerbates the accelerated aging phenotype, pointing to total energy expenditure as a potential driver of aging dynamics. Together, our findings define bioenergetic and multi-omic recalibrations of stress adaptation, underscoring increased energy expenditure and accelerated cellular aging as interrelated features of cellular allostatic load.
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Affiliation(s)
- Natalia Bobba-Alves
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, United States
| | - Gabriel Sturm
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, United States; Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, United States
| | - Jue Lin
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, United States
| | - Sarah A Ware
- Department of Medicine, Vascular Medicine Institute and Center for Metabolic and Mitochondrial Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Kalpita R Karan
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, United States
| | - Anna S Monzel
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, United States
| | - Céline Bris
- Department of Genetics, Angers Hospital, Angers, France; MitoLab, UMR CNRS 6015, INSERM U1083, Institut MitoVasc, Université d'Angers, Angers, France
| | - Vincent Procaccio
- MitoLab, UMR CNRS 6015, INSERM U1083, Institut MitoVasc, Université d'Angers, Angers, France
| | - Guy Lenaers
- Department of Genetics, Angers Hospital, Angers, France; MitoLab, UMR CNRS 6015, INSERM U1083, Institut MitoVasc, Université d'Angers, Angers, France; Department of Neurology, Angers Hospital, Angers, France
| | - Albert Higgins-Chen
- Department of Psychiatry, Yale University School of Medicine, New Haven CT, United States
| | - Morgan Levine
- Altos Labs, San Diego Institute of Science, San Diego, CA United States
| | - Steve Horvath
- Altos Labs, San Diego Institute of Science, San Diego, CA United States
| | - Balaji S Santhanam
- Departments of Biological Sciences, Systems Biology, and Biochemistry and Molecular Biophysics, Institute for Cancer Dynamics, Columbia University, New York, NY, United States
| | - Brett A Kaufman
- Department of Medicine, Vascular Medicine Institute and Center for Metabolic and Mitochondrial Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Michio Hirano
- Department of Neurology, Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY, United States
| | - Elissa Epel
- Department of Psychiatry and Behavioral Sciences, University of California San Francisco, San Francisco, CA, United States
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, United States; Department of Neurology, Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY, United States; New York State Psychiatric Institute, New York, NY, United States.
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5
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Li Y, Zhai H, Kang L, Chu Q, Zhao X, Li R. Causal association between basal metabolic rate and risk of cardiovascular diseases: a univariable and multivariable Mendelian randomization study. Sci Rep 2023; 13:12487. [PMID: 37528130 PMCID: PMC10393961 DOI: 10.1038/s41598-023-39551-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 07/26/2023] [Indexed: 08/03/2023] Open
Abstract
Basal metabolic rate (BMR) is associated with cardiovascular health; however, the causal relationship between BMR and the risk of cardiovascular diseases (CVDs) remains unclear. This study aimed to investigate the potential causal relationship of BMR on common CVDs including aortic aneurysm (AA), atrial fibrillation and flutter (AFF), calcific aortic valvular stenosis (CAVS), heart failure (HF), and myocardial infarction (MI) by Mendelian randomization (MR). The univariable MR analysis using inverse variance weighted (IVW) model as the primary analysis method revealed that genetically predicted higher BMR causally increased the risk of AA [IVW odds ratio (OR) = 1.34, 95% confidence interval CI 1.09-1.65, p = 0.00527], AFF (IVW OR = 1.87, 95% CI 1.65-2.12, p = 1.697 × E-22), and HF (IVW OR = 1.35, 95% CI 1.20-1.51, p = 2.364 × E-07), while causally decreasing the risk of MI (IVW OR = 0.83, 95% CI 0.73-0.93, p = 0.00255). In the multivariable MR analysis, which controlled for common cardiovascular risk factors, direct effects of BMR on an increased risk of AA and AFF, as well as a decreased risk of MI, but an attenuated causal effect on HF, were observed. In conclusion, the current MR study provides evidence for a causal relationship between BMR and the risk of AA, AFF, HF, and MI.
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Affiliation(s)
- Yihua Li
- The First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Huiqi Zhai
- The First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Liang Kang
- The First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Qingmin Chu
- Department of Cardiovascular Disease, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xinjun Zhao
- Department of Cardiovascular Disease, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Rong Li
- Department of Cardiovascular Disease, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
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6
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Ng JCM, Schooling CM. Effect of basal metabolic rate on lifespan: a sex-specific Mendelian randomization study. Sci Rep 2023; 13:7761. [PMID: 37173352 PMCID: PMC10182013 DOI: 10.1038/s41598-023-34410-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023] Open
Abstract
Observationally, the association of basal metabolic rate (BMR) with mortality is mixed, although some ageing theories suggest that higher BMR should reduce lifespan. It remains unclear whether a causal association exists. In this one-sample Mendelian randomization study, we aimed to estimate the casual effect of BMR on parental attained age, a proxy for lifespan, using two-sample Mendelian randomization methods. We obtained genetic variants strongly (p-value < 5 × 10-8) and independently (r2 < 0.001) predicting BMR from the UK Biobank and applied them to a genome-wide association study of parental attained age based on the UK Biobank. We meta-analyzed genetic variant-specific Wald ratios using inverse-variance weighting with multiplicative random effects by sex, supplemented by sensitivity analysis. A total of 178 and 180 genetic variants predicting BMR in men and women were available for father's and mother's attained age, respectively. Genetically predicted BMR was inversely associated with father's and mother's attained age (years of life lost per unit increase in effect size of genetically predicted BMR, 0.46 and 1.36; 95% confidence interval 0.07-0.85 and 0.89-1.82), with a stronger association in women than men. In conclusion, higher BMR might reduce lifespan. The underlying pathways linking to major causes of death and relevant interventions warrant further investigation.
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Affiliation(s)
- Jack C M Ng
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China
| | - C Mary Schooling
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, China.
- Department of Environmental, Occupational, and Geospatial Health Sciences, Graduate School of Public Health and Health Policy, The City University of New York, 55 West 125th St, New York, NY, 10027, USA.
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7
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Naviaux RK. Mitochondrial and metabolic features of salugenesis and the healing cycle. Mitochondrion 2023; 70:131-163. [PMID: 37120082 DOI: 10.1016/j.mito.2023.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/24/2023] [Accepted: 04/23/2023] [Indexed: 05/01/2023]
Abstract
Pathogenesis and salugenesis are the first and second stages of the two-stage problem of disease production and health recovery. Salugenesis is the automatic, evolutionarily conserved, ontogenetic sequence of molecular, cellular, organ system, and behavioral changes that is used by living systems to heal. It is a whole-body process that begins with mitochondria and the cell. The stages of salugenesis define a circle that is energy- and resource-consuming, genetically programmed, and environmentally responsive. Energy and metabolic resources are provided by mitochondrial and metabolic transformations that drive the cell danger response (CDR) and create the three phases of the healing cycle: Phase 1-Inflammation, Phase 2-Proliferation, and Phase 3-Differentiation. Each phase requires a different mitochondrial phenotype. Without different mitochondria there can be no healing. The rise and fall of extracellular ATP (eATP) signaling is a key driver of the mitochondrial and metabolic reprogramming required to progress through the healing cycle. Sphingolipid and cholesterol-enriched membrane lipid rafts act as rheostats for tuning cellular sensitivity to purinergic signaling. Abnormal persistence of any phase of the CDR inhibits the healing cycle, creates dysfunctional cellular mosaics, causes the symptoms of chronic disease, and accelerates the process of aging. New research reframes the rising tide of chronic disease around the world as a systems problem caused by the combined action of pathogenic triggers and anthropogenic factors that interfere with the mitochondrial functions needed for healing. Once chronic pain, disability, or disease is established, salugenesis-based therapies will start where pathogenesis-based therapies end.
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Affiliation(s)
- Robert K Naviaux
- The Mitochondrial and Metabolic Disease Center, Departments of Medicine, and Pediatrics, University of California, San Diego School of Medicine, 214 Dickinson St., Bldg CTF, Rm C107, MC#8467, San Diego, CA 92103.
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8
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McNulty KE, Creevy KE, Fitzpatrick A, Wilkins V, Barnett BG, Ruple A. Development and Validation of a Novel Instrument to Capture Companion Dog Mortality Data: The Dog Aging Project End of Life Survey. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.01.535178. [PMID: 37034699 PMCID: PMC10081320 DOI: 10.1101/2023.04.01.535178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Objective The researchers and clinicians within the Dog Aging Project (DAP), a longitudinal cohort study of aging in companion dogs, created and validated a novel survey instrument titled the End of Life Survey (EOLS) to gather owner-reported mortality data about companion dogs. Sample Bereaved dog owners who participated in the refinement, face validity assessment, or reliability assessment of the EOLS (n=42) and/or completed the entire survey between January 20 and March 24, 2021 (n=646). Procedures The EOLS was created and modified by veterinary health professionals and human gerontology experts using published literature, clinical veterinary experience, previously created DAP surveys, and feedback from a pilot study conducted with bereaved dog owners. The EOLS was subjected to qualitative validation methods and post-hoc free-text analysis to evaluate its ability to thoroughly capture scientifically relevant aspects of companion dogs' death. Results The EOLS was well-received with excellent face validity as assessed by dog owners and experts. The EOLS had fair to substantial reliability for the three validation themes: cause of death (kappa = 0.73; 95% CI [0.5-0.95]), perimortem quality of life (kappa = 0.49; 95% CI [0.26-0.73]), and reason for euthanasia (kappa = 0.3; 95% CI [0.08-0.52]) and had no need for any substantial content alterations based on free-text analysis. Clinical Relevance The EOLS has proven to be a well-accepted, comprehensive, and valid instrument for capturing owner-reported companion dog mortality data and has the potential to enhance veterinarians' ability to care for the aging dog population by illuminating their understanding of companion dogs' end-of-life experiences.
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Affiliation(s)
- Kellyn E McNulty
- Texas A&M University College of Veterinary Medicine & Biomedical Sciences, Department of Small Animal Clinical Sciences (College Station, TX)
| | - Kate E Creevy
- Texas A&M University College of Veterinary Medicine & Biomedical Sciences, Department of Small Animal Clinical Sciences (College Station, TX)
| | - Annette Fitzpatrick
- University of Washington, Schools of Medicine and Public Health, Departments of Family Medicine and Epidemiology (Seattle, WA)
| | - Vanessa Wilkins
- Texas A&M University College of Veterinary Medicine & Biomedical Sciences, Department of Small Animal Clinical Sciences (College Station, TX)
| | - Brian G Barnett
- University of Georgia College of Veterinary Medicine, Department of Small Animal Medicine and Surgery (Athens, GA)
| | - Audrey Ruple
- Virginia-Maryland College of Veterinary Medicine, Department of Population Health Sciences (Blacksburg, VA)
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Lin X, Cheng A, Pan Y, Wang M, Meng X, Wang Y. Predicted resting metabolic rate and prognosis in patients with ischemic stroke. Brain Behav 2023; 13:e2911. [PMID: 36749599 PMCID: PMC10013948 DOI: 10.1002/brb3.2911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 12/10/2022] [Accepted: 01/16/2023] [Indexed: 02/08/2023] Open
Abstract
PURPOSE Resting metabolic rate (RMR) could represent metabolic health status. This study aims to examine the association of the predicted RMR with 1-year poor functional outcome and all-cause mortality in patients with ischemic stroke as a proxy of metabolic profile. METHODS A total of 15,166 patients with ischemic stroke or transient ischemic attack (TIA) from the Third China National Stroke Registry (CNSR-III) were enrolled in this study. The Harris-Benedict equation based on sex, age, weight, and height was used to predict RMR. The primary endpoints were poor functional outcome defined as ≥3 modified Rankin Scale (mRS) score and all-cause mortality within 1 year. The association between predicted RMR and prognosis was assessed by multivariable regression analysis. Besides that, subgroup analysis of age, sex, and body mass index (BMI) with predicted RMR was also performed. RESULTS 12.85% (1657) individuals had poor functional outcome and 2.87% (380) died of whatever causes within 1 year. An inverse association was found between predicted RMR with poor functional outcome and all-cause mortality. Compared to the lowest quartile, the highest quartile was significantly associated with lower risk of poor functional outcome (adjusted odds ratio [OR], 0.43 [95% confidence interval (CI) 0.33-0.56]) and all-cause mortality (adjusted hazard ratio [HR], 0.44 [95% CI 0.28-0.71]). No significant interaction was between predicted RMR and specified subgroup. CONCLUSIONS Predicted RMR by the Harris-Benedict equation seems to be an independent protective predictor of poor functional outcome and all-cause mortality after ischemic stroke as a metabolic proxy.
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Affiliation(s)
- Xiaoyu Lin
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Aichun Cheng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yuesong Pan
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Mengxing Wang
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Xia Meng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Yongjun Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China.,Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Beijing, China
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10
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Resting metabolic rate in relation to incident disability and mobility decline among older adults: the modifying role of frailty. Aging Clin Exp Res 2023; 35:591-598. [PMID: 36626043 DOI: 10.1007/s40520-022-02340-4] [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: 11/23/2022] [Accepted: 12/26/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Alterations in resting metabolic rate (RMR), the largest component of daily total energy expenditure, with aging have been shown in various studies. However, little is known about the associations between RMR and health outcomes in later life. AIMS To analyze whether RMR is associated with incident disability and mobility decline in a 10-year longitudinal study, as well as the moderating role of frailty in these associations. METHODS Data from 298 older adults aged 70 and over from the Frailty and Dependence in Albacete (FRADEA) study in Spain were used, including a baseline measurement in 2007-2009 and a follow-up measurement 10 years later. RMR was measured by indirect calorimetry. Outcomes were incident disability in basic activities of daily living (BADL, Barthel Index), incident disability in instrumental ADL (IADL, Lawton index), and mobility decline (Functional Ambulation Categories scores). Fried's frailty phenotype was used as an indicator of frailty. Logistic regression analyses were conducted. RESULTS Fully adjusted and stratified analyses revealed that only in the pre-frail/frail group, a higher RMR was associated with a lower risk of incident BADL disability (OR = 0.47, 95% CI = 0.23-0.96, p = 0.037), incident IADL disability (OR = 0.39, 95% CI = 0.18-0.84, p = 0.017), and mobility decline (OR = 0.30, 95% CI = 0.14-0.64, p = 0.002). CONCLUSIONS To our knowledge, this is the first study looking at the associations between RMR and functional health using a longitudinal research design. The results suggest that RMR could be used as an early identifier of a specific resilient group within the pre-frail and frail older population, with a lower risk of further health decline.
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11
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Milić M, Ožvald I, Matković K, Radašević H, Nikolić M, Božičević D, Duh L, Matovinović M, Bituh M. Combined Approach: FFQ, DII, Anthropometric, Biochemical and DNA Damage Parameters in Obese with BMI ≥ 35 kg m -2. Nutrients 2023; 15:899. [PMID: 36839257 PMCID: PMC9958661 DOI: 10.3390/nu15040899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/04/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
Although obesity with its comorbidities is linked with higher cancer risk, the data on genome stability in the obese/severely obese are scarce. This is the first study with three DNA damage assessment assays (Fpg-modified and alkaline comet assays and micronucleus cytome assay) performed on a severely obese population (n = 53) where the results were compared with daily intake of food groups, nutrient intake, dietary inflammatory index (DII), and anthropometric and biochemical parameters usually measured in obese individuals. Results demonstrated the association between DNA damage levels and a decrease in cell proliferation with anthropometric measurements and the severity of obese status, together with elevated levels of urates, inorganic phosphates, chlorides, and hs troponin I levels. DII was connected with oxidative DNA damage, while BMI and basal metabolic rate (BMR) were associated with a decrease in cell proliferation and DNA damage creation. Measured daily BMR and calculated daily energy intake from the food frequency questionnaire (FFQ) demonstrated no significant difference (1792.80 vs. 1869.86 kcal day-1 mean values). Groups with higher DNA damage than expected (tail intensity in comet assay >9% and >12.4%, micronucleus frequency >13), consumed daily, weekly, and monthly more often some type of food groups, but differences did not show a clear influence on the elevated DNA damage levels. Combination of all three DNA damage assays demonstrated that some type of damage can start earlier in the obese individual lifespan, such as nuclear buds and nucleoplasmic bridges, then comes decrease in cell proliferation and then elevated micronucleus frequencies, and that primary DNA damage is not maybe crucial in the overweight, but in severely obese. Biochemically changed parameters pointed out that obesity can have an impact on changes in blood cell counts and division and also on genomic instability. Assays were able to demonstrate groups of sensitive individuals that should be further monitored for genomic instability and cancer prevention, especially when obesity is already connected with comorbidities, 13 different cancers, and a higher mortality risk with 7-10 disease-free years loss. In the future, both DNA damage and biochemical parameters should be combined with anthropometric ones for further obese monitoring, better insight into biological changes in the severely obese, and a more individual approach in therapy and treatment. Patients should also get a proper education about the foodstuff with pro- and anti-inflammatory effect.
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Affiliation(s)
- Mirta Milić
- Mutagenesis Unit, Institute for Medical Research and Occupational Health (IMROH), 10001 Zagreb, Croatia
| | - Ivan Ožvald
- Special Hospital for Extended Treatment of Duga Resa, 47250 Duga Resa, Croatia
- Neuropsychiatric Hospital dr. Ivan Barbot of Popovača, 44317 Popovača, Croatia
| | - Katarina Matković
- Mutagenesis Unit, Institute for Medical Research and Occupational Health (IMROH), 10001 Zagreb, Croatia
| | - Hrvoje Radašević
- Andrija Štampar Teaching Institute of Public Health, 10000 Zagreb, Croatia
| | - Maja Nikolić
- Mutagenesis Unit, Institute for Medical Research and Occupational Health (IMROH), 10001 Zagreb, Croatia
| | - Dragan Božičević
- Special Hospital for Extended Treatment of Duga Resa, 47250 Duga Resa, Croatia
| | - Lidija Duh
- Special Hospital for Extended Treatment of Duga Resa, 47250 Duga Resa, Croatia
| | - Martina Matovinović
- Department of Internal Medicine, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
| | - Martina Bituh
- Laboratory for Food Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia
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12
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Sturm G, Karan KR, Monzel AS, Santhanam B, Taivassalo T, Bris C, Ware SA, Cross M, Towheed A, Higgins-Chen A, McManus MJ, Cardenas A, Lin J, Epel ES, Rahman S, Vissing J, Grassi B, Levine M, Horvath S, Haller RG, Lenaers G, Wallace DC, St-Onge MP, Tavazoie S, Procaccio V, Kaufman BA, Seifert EL, Hirano M, Picard M. OxPhos defects cause hypermetabolism and reduce lifespan in cells and in patients with mitochondrial diseases. Commun Biol 2023; 6:22. [PMID: 36635485 PMCID: PMC9837150 DOI: 10.1038/s42003-022-04303-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/26/2022] [Indexed: 01/13/2023] Open
Abstract
Patients with primary mitochondrial oxidative phosphorylation (OxPhos) defects present with fatigue and multi-system disorders, are often lean, and die prematurely, but the mechanistic basis for this clinical picture remains unclear. By integrating data from 17 cohorts of patients with mitochondrial diseases (n = 690) we find evidence that these disorders increase resting energy expenditure, a state termed hypermetabolism. We examine this phenomenon longitudinally in patient-derived fibroblasts from multiple donors. Genetically or pharmacologically disrupting OxPhos approximately doubles cellular energy expenditure. This cell-autonomous state of hypermetabolism occurs despite near-normal OxPhos coupling efficiency, excluding uncoupling as a general mechanism. Instead, hypermetabolism is associated with mitochondrial DNA instability, activation of the integrated stress response (ISR), and increased extracellular secretion of age-related cytokines and metabokines including GDF15. In parallel, OxPhos defects accelerate telomere erosion and epigenetic aging per cell division, consistent with evidence that excess energy expenditure accelerates biological aging. To explore potential mechanisms for these effects, we generate a longitudinal RNASeq and DNA methylation resource dataset, which reveals conserved, energetically demanding, genome-wide recalibrations. Taken together, these findings highlight the need to understand how OxPhos defects influence the energetic cost of living, and the link between hypermetabolism and aging in cells and patients with mitochondrial diseases.
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Affiliation(s)
- Gabriel Sturm
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA, USA
| | - Kalpita R Karan
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Anna S Monzel
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Balaji Santhanam
- Departments of Biological Sciences, Systems Biology, and Biochemistry and Molecular Biophysics, Institute for Cancer Dynamics, Columbia University, New York, NY, USA
| | - Tanja Taivassalo
- Department of Physiology and Functional Genomics, Clinical and Translational Research Building, University of Florida, Gainesville, FL, USA
| | - Céline Bris
- Department of Genetics and Neurology, Angers Hospital, Angers, France
- UMR CNRS 6015, INSERM U1083, MITOVASC, SFR ICAT, Université d'Angers, Angers, France
| | - Sarah A Ware
- Department of Medicine, Vascular Medicine Institute and Center for Metabolic and Mitochondrial Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Marissa Cross
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Atif Towheed
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Internal Medicine-Pediatrics Residency Program, University of Pittsburgh Medical Centre, Pittsburgh, PA, USA
| | - Albert Higgins-Chen
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Meagan J McManus
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Center for Mitochondrial and Epigenomic Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Andres Cardenas
- Department of Epidemiology and Population Health, Stanford University, Stanford, CA, USA
| | - Jue Lin
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA, USA
| | - Elissa S Epel
- Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, CA, USA
| | - Shamima Rahman
- Mitochondrial Research Group, UCL Great Ormond Street Institute of Child Health, and Metabolic Unit, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - John Vissing
- Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Bruno Grassi
- Department of Medicine, University of Udine, Udine, Italy
| | | | | | - Ronald G Haller
- Neuromuscular Center, Institute for Exercise and Environmental Medicine of Texas Health Resources and Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Guy Lenaers
- Department of Genetics and Neurology, Angers Hospital, Angers, France
- UMR CNRS 6015, INSERM U1083, MITOVASC, SFR ICAT, Université d'Angers, Angers, France
| | - Douglas C Wallace
- Center for Mitochondrial and Epigenomic Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Marie-Pierre St-Onge
- Center of Excellence for Sleep & Circadian Research and Division of General Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Saeed Tavazoie
- Departments of Biological Sciences, Systems Biology, and Biochemistry and Molecular Biophysics, Institute for Cancer Dynamics, Columbia University, New York, NY, USA
| | - Vincent Procaccio
- Department of Genetics and Neurology, Angers Hospital, Angers, France
- UMR CNRS 6015, INSERM U1083, MITOVASC, SFR ICAT, Université d'Angers, Angers, France
| | - Brett A Kaufman
- Department of Medicine, Vascular Medicine Institute and Center for Metabolic and Mitochondrial Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Erin L Seifert
- Department of Pathology and Genomic Medicine, and MitoCare Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Michio Hirano
- Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY, USA
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY, USA.
- Department of Neurology, H. Houston Merritt Center, Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY, USA.
- New York State Psychiatric Institute, New York, NY, USA.
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13
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Baranova A, Song Y, Cao H, Zhang F. Causal Associations Between Basal Metabolic Rate and COVID-19. Diabetes 2023; 72:149-154. [PMID: 36215434 DOI: 10.2337/db22-0610] [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: 07/07/2022] [Accepted: 10/05/2022] [Indexed: 11/13/2022]
Abstract
Many coronavirus disease 2019 (COVID-19) risk factors, including obesity and diabetes, are associated with an abnormal basal metabolic rate (BMR). We aimed to evaluate whether BMR could impact the susceptibility to or severity of COVID-19. We performed genetic correlation and Mendelian randomization (MR) analyses to assess genetic correlations and potential causal associations between BMR (n = 448,348) and three COVID-19 outcomes: severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, COVID-19 hospitalization, and critical COVID-19 (n = 1,086,211-2,597,856). A multivariable MR (MVMR) analysis was used to estimate the direct effect of BMR on COVID-19 independent of BMI and type 2 diabetes. BMR has positive genetic correlations with the COVID-19 outcomes (genetic correlations 0.213-0.266). The MR analyses indicated that genetic liability to BMR confers causal effects on SARS-CoV-2 infection (odds ratio 1.14, 95% CI 1.09-1.20, P = 1.65E-07), hospitalized COVID-19 (1.31, 1.18-1.46, P = 8.69E-07), and critical COVID-19 (1.04, 1.19-1.64, P = 4.89E-05). Sensitivity analysis of MR showed no evidence of directional pleiotropy or heterogeneity, indicating the robustness of its results. The MVMR analysis showed that the causal effects of BMR on hospitalized COVID-19 and critical COVID-19 were dependent on BMI and type 2 diabetes but that BMR may affect the SARS-CoV-2 infection risk independently of BMI and type 2 diabetes (odds ratio 1.09, 95% CI 1.03-1.15, P = 4.82E-03). Our study indicates that a higher BMR contributes to amplifying the susceptibility to and severity of COVID-19. The causal effect of BMR on the severity of COVID-19 may be mediated by BMI and type 2 diabetes.
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Affiliation(s)
- Ancha Baranova
- School of Systems Biology, George Mason University, Manassas, VA
- Research Centre for Medical Genetics, Moscow, Russia
| | - Yuqing Song
- Institute of Mental Health, Peking University Sixth Hospital, Beijing, China
- Key Laboratory of Mental Health, Ministry of Health and National Clinical Research Center for Mental Disorders, Peking University, Beijing, China
| | - Hongbao Cao
- School of Systems Biology, George Mason University, Manassas, VA
| | - Fuquan Zhang
- Institute of Neuropsychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
- Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
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14
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Bobba-Alves N, Juster RP, Picard M. The energetic cost of allostasis and allostatic load. Psychoneuroendocrinology 2022; 146:105951. [PMID: 36302295 PMCID: PMC10082134 DOI: 10.1016/j.psyneuen.2022.105951] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/05/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022]
Abstract
Chronic psychosocial stress increases disease risk and mortality, but the underlying mechanisms remain largely unclear. Here we outline an energy-based model for the transduction of chronic stress into disease over time. The energetic model of allostatic load (EMAL) emphasizes the energetic cost of allostasis and allostatic load, where the "load" is the additional energetic burden required to support allostasis and stress-induced energy needs. Living organisms have a limited capacity to consume energy. Overconsumption of energy by allostatic brain-body processes leads to hypermetabolism, defined as excess energy expenditure above the organism's optimum. In turn, hypermetabolism accelerates physiological decline in cells, laboratory animals, and humans, and may drive biological aging. Therefore, we propose that the transition from adaptive allostasis to maladaptive allostatic states, allostatic load, and allostatic overload arises when the added energetic cost of stress competes with longevity-promoting growth, maintenance, and repair. Mechanistically, the energetic restriction of growth, maintenance and repair processes leads to the progressive wear-and-tear of molecular and organ systems. The proposed model makes testable predictions around the physiological, cellular, and sub-cellular energetic mechanisms that transduce chronic stress into disease risk and mortality. We also highlight new avenues to quantify allostatic load and its link to health across the lifespan, via the integration of systemic and cellular energy expenditure measurements together with classic allostatic load biomarkers.
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Affiliation(s)
- Natalia Bobba-Alves
- Division of Behavioral Medicine, Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, USA
| | - Robert-Paul Juster
- Center on Sex⁎Gender, Allostasis, and Resilience, Research Center of the Montreal Mental Health University Institute, Montreal, QC, Canada; Department of Psychiatry and Addiction, University of Montreal, Montreal, QC, Canada
| | - Martin Picard
- Division of Behavioral Medicine, Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, USA; Department of Neurology, H. Houston Merritt Center and Columbia Translational Neuroscience Initiative, Columbia University Irving Medical Center, New York, NY, USA; New York State Psychiatric Institute, New York, NY, USA.
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15
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Li W, Li X, Huang T, Chen Y, Zhang H, Dai H, Wen Y. Normative reference data for body composition in healthy indigenous populations on the Qinghai-Tibet Plateau. Front Public Health 2022; 10:986720. [PMID: 36276374 PMCID: PMC9584638 DOI: 10.3389/fpubh.2022.986720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/14/2022] [Indexed: 11/17/2022] Open
Abstract
Body composition represents an important aspect of physical fitness and has received increasing attention in recent years. The present study was designed and conducted to provide reference values for age-, sex-, and altitude-specific body composition for healthy indigenous Tibetan adults living on the Qinghai-Tibet Plateau, which has not yet been studied. A cross-sectional survey was conducted among 2,356 healthy Tibetan adults (1,433 females and 923 males) living on the Qinghai-Tibet Plateau for generations. The body composition of the participants was measured by bioelectrical impedance analysis (BIA). The measurements included weight, basal metabolic rate (BMR), fat-free mass (FFM), skeletal muscle mass (SMM), protein mass (PM), bone mass (BM), fat mass (FM), percentage of body fat (PBF), subcutaneous fat mass (SFM), visceral fat mass (VFM), total body water (TBW), intracellular water (ICW), and extracellular water (ECW). Overall, males had greater FFM, SMM, PM, BM, and water mass, whereas females were high in fat mass. Participants from plains generally had higher body composition values, and PM, BM, FM and body water values decreased with increasing altitude, with the lowest values found in >4,000 m Shigatse. FFM, SMM, PM, and BM tended to decrease with increasing age, whereas fat mass and ECW tended to increase with increasing age. This study provides the first normative reference data of body composition for healthy indigenous individuals on the Qinghai-Tibet Plateau. These datasets are important for future research related to body composition. A considerable decrease in body composition values in > 4,000 m-altitude areas suggested that body composition cutoff values should be established by altitude. Age-, sex-, and altitude-specific alterations in body composition values also inform the prevention and amendment of abnormal body composition changes and resultant health complications.
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Affiliation(s)
- Wenhui Li
- Experimental Teaching Center of Basic Medicine, Jinzhou Medical University, Jinzhou, China
| | - Xin Li
- Institute of Biological Anthropology, Jinzhou Medical University, Jinzhou, China
| | - Ting Huang
- Institute of Biological Anthropology, Jinzhou Medical University, Jinzhou, China
| | - Ying Chen
- School of Public Health, Jinzhou Medical University, Jinzhou, China
| | - Hailong Zhang
- Experimental Teaching Center of Basic Medicine, Jinzhou Medical University, Jinzhou, China
| | - Hongliang Dai
- School of Nursing, Jinzhou Medical University, Jinzhou, China,*Correspondence: Hongliang Dai
| | - Youfeng Wen
- Institute of Biological Anthropology, Jinzhou Medical University, Jinzhou, China,Youfeng Wen
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16
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Han F, Hu F, Wang T, Zhou W, Zhu L, Huang X, Bao H, Cheng X. Association Between Basal Metabolic Rate and All-Cause Mortality in a Prospective Cohort of Southern Chinese Adults. Front Physiol 2022; 12:790347. [PMID: 35058799 PMCID: PMC8763786 DOI: 10.3389/fphys.2021.790347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/07/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: The aim of this study was to assess the relationship between basal metabolic rate (BMR) and all-cause mortality in southern Chinese adults. Methods: We prospectively examined the relationship between BMR and all-cause mortality in 12,608 Southern Chinese adults with age ≥ 35 years who participated in the National Key R&D Program from 2013-2014 to 2019-2020. Cox proportional hazard models were used to examine the association between BMR and all-cause mortality. Results: A total of 809 deaths (including 478 men and 331 women) occurred during a median follow-up period of 5.60 years. All-cause mortality was higher in elderly individuals than in non-elderly individuals (11.48 vs. 2.04%, P < 0.001) and was higher in male subjects than in female subjects (9.84 vs. 4.56%, P < 0.001). There was a significantly inverse relationship between BMR levels and all-cause mortality in elderly male individuals (adjusted-HR per SD increase: 0.80, 95% CI: 0.70-0.91, P < 0.001). Compared with BMR levels ≤ 1,115 kJ/day, there was lower all-cause mortality in third and highest BMR quartiles in the elderly male subjects (adjusted-HR: 0.71, 95% CI: 0.53-0.95, P = 0.022; adjusted-HR: 0.60, 95% CI: 0.43-0.84, P = 0.003, respectively). Conclusion: An elevated BMR was independently inversely associated with all-cause mortality in elderly male subjects in a southern Chinese population.
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Affiliation(s)
- Fengyu Han
- The Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, China
| | - Feng Hu
- The Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, China
| | - Tao Wang
- Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, China.,Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wei Zhou
- Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, China.,Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Linjuan Zhu
- Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, China.,Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiao Huang
- The Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, China.,Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Huihui Bao
- The Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, China.,Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaoshu Cheng
- The Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Provincial Cardiovascular Disease Clinical Medical Research Center, Nanchang, China.,Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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17
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Hu J, Zhou M, Qin M, Tong S, Hou Z, Xu Y, Zhou C, Xiao Y, Yu M, Huang B, Xu X, Lin L, Liu T, Xiao J, Gong W, Hu R, Li J, Jin D, Zhao Q, Yin P, Xu Y, Zeng W, Li X, He G, Huang C, Ma W. Long-term exposure to ambient temperature and mortality risk in China: A nationwide study using the difference-in-differences design. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118392. [PMID: 34678392 DOI: 10.1016/j.envpol.2021.118392] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 10/16/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
The short-term effects of ambient temperature on mortality have been widely investigated. However, the epidemiological evidence on the long-term effects of temperature on mortality is rare. In present study, we conducted a nationwide quasi-experimental design, which based on a variant of difference-in-differences (DID) approach, to examine the association between long-term exposure to ambient temperature and mortality risk in China, and to analyze the effect modification of population characteristics and socioeconomic status. Data on mortality were collected from 364 communities across China during 2006-2017, and environmental data were obtained for the same period. We estimated a 2.93 % (95 % CI: 2.68 %, 3.18 %) increase in mortality risk per 1 °C decreases in annual temperature, the greater effects were observed on respiratory diseases (5.16 %, 95 % CI: 4.53 %, 5.79 %) than cardiovascular diseases (3.43 %, 95 % CI: 3.06 %, 3.80 %), and on younger people (4.21 %, 95 % CI: 3.73 %, 4.68 %) than the elderly (2.36 %, 95 % CI: 2.06 %, 2.65 %). In seasonal analysis, per 1 °C decreases in average temperature was associated with 1.55 % (95 % CI: 1.23 %, 1.87 %), -0.53 % (95 % CI: -0.89 %, -0.16 %), 2.88 % (95 % CI: 2.45 %, 3.31 %) and 4.21 % (95 % CI: 3.98 %, 4.43 %) mortality change in spring, summer, autumn and winter, respectively. The effects of long-term temperature on total mortality were more pronounced among the communities with low urbanization, low education attainment, and low GDP per capita. In total, the decrease of average temperature in summer decreased mortality risk, while increased mortality risk in other seasons, and the associations were modified by demographic characteristics and socioeconomic status. Our findings suggest that populations with disadvantaged characteristics and socioeconomic status are vulnerable to long-term exposure of temperature, and targeted policies should be formulated to strengthen the response to the health threats of temperature exposure.
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Affiliation(s)
- Jianxiong Hu
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, China
| | - Maigeng Zhou
- The National Center for Chronic and Noncommunicable Disease Control and Prevention, Beijing, 100050, China
| | - Mingfang Qin
- Yunnan Provincial Center for Disease Control and Prevention, Kunming, 650034, China
| | - Shilu Tong
- Shanghai Children's Medical Center, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Zhulin Hou
- Jilin Provincial Center for Disease Control and Prevention, Changchun, 130062, China
| | - Yanjun Xu
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, China
| | - Chunliang Zhou
- Hunan Provincial Center for Disease Control and Prevention, Changsha, 410005, China
| | - Yize Xiao
- Yunnan Provincial Center for Disease Control and Prevention, Kunming, 650034, China
| | - Min Yu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310009, China
| | - Biao Huang
- Jilin Provincial Center for Disease Control and Prevention, Changchun, 130062, China
| | - Xiaojun Xu
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, China
| | - Lifeng Lin
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, China
| | - Tao Liu
- School of Medical, Jinan University, Guangzhou, 510632, China
| | - Jianpeng Xiao
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, China
| | - Weiwei Gong
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310009, China
| | - Ruying Hu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310009, China
| | - Junhua Li
- Hunan Provincial Center for Disease Control and Prevention, Changsha, 410005, China
| | - Donghui Jin
- Hunan Provincial Center for Disease Control and Prevention, Changsha, 410005, China
| | - Qinglong Zhao
- Jilin Provincial Center for Disease Control and Prevention, Changchun, 130062, China
| | - Peng Yin
- The National Center for Chronic and Noncommunicable Disease Control and Prevention, Beijing, 100050, China
| | - Yiqing Xu
- Hunan Provincial Center for Disease Control and Prevention, Changsha, 410005, China
| | - Weilin Zeng
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, China
| | - Xing Li
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, China
| | - Guanhao He
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 511430, China
| | - Cunrui Huang
- School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Wenjun Ma
- School of Medical, Jinan University, Guangzhou, 510632, China.
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18
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Morgunova GV. NOT JUST CALORIC RESTRICTION: A COMPLEX APPROACH TO PROLONG LIFESPAN AND IMPROVE QUALITY OF LIFE. CENTRAL ASIAN JOURNAL OF MEDICAL HYPOTHESES AND ETHICS 2021. [DOI: 10.47316/cajmhe.2021.2.4.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Aging is an urgent healthcare issue in view of the rapid growth of the proportion of older persons. Searching for reliable aging biomarkers and prolonging lifespan are increasingly important scientific directions. Experimental gerontology helps to explore fundamental facts which are not always applicable in clinical scenarios. As an example, caloric restriction is one of the key interventions that prolongs laboratory animals’ lifespan and ameliorates some, but not all, aging biomarkers in humans. Consequences of overeating such as obesity, insulin resistance, type 2 diabetes, and metabolic syndrome are taking their toll with aging, making caloric restriction a hot topic in gerontology and geriatrics. Nevertheless, caloric restriction is not widely applicable in view of poor adherence to and limitations of strict diets. Drugs mimicking caloric restrictions, the so-called caloric restriction mimetics, are developed to overcome these limitations. Caloric restriction alone is not a panacea since metabolic pathways are complex and not responsive to a single intervention. Fasting and exercising are additional options for reducing effects of excessive intake of calories. Arguably, physical activity significantly improves the quality of life at old age and delays the onset of overt insulin resistance and associated diseases. Thus, developing optimal fasting and exercising schemes is becoming increasingly important. Such interventions are confounded by a number of factors, including circadian and other biorhythms and baseline metabolic activity. It is justifiable to test fasting and exercising in experimental animals to reveal numerous confounding factors. A hypothesis in this article points to the role of complex interventions such as moderate and balanced diet, intermittent fasting, and physical exercise adjusted to circadian rhythms for prolonging life and improving quality of life. The hypothesis may shed light on fundamental mechanisms of aging and perspectives of anti-aging drug therapies.
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Ng JCM, Schooling CM. Effect of Basal Metabolic Rate on Cancer: A Mendelian Randomization Study. Front Genet 2021; 12:735541. [PMID: 34567085 PMCID: PMC8458883 DOI: 10.3389/fgene.2021.735541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/16/2021] [Indexed: 01/18/2023] Open
Abstract
Background: Basal metabolic rate is associated with cancer, but these observations are open to confounding. Limited evidence from Mendelian randomization studies exists, with inconclusive results. Moreover, whether basal metabolic rate has a similar role in cancer for men and women independent of insulin-like growth factor 1 increasing cancer risk has not been investigated. Methods: We conducted a two-sample Mendelian randomization study using summary data from the UK Biobank to estimate the causal effect of basal metabolic rate on cancer. Overall and sex-specific analysis and multiple sensitivity analyses were performed including multivariable Mendelian randomization to control for insulin-like growth factor 1. Results: We obtained 782 genetic variants strongly (p-value < 5 × 10–8) and independently (r2 < 0.01) predicting basal metabolic rate. Genetically predicted higher basal metabolic rate was associated with an increase in cancer risk overall (odds ratio, 1.06; 95% confidence interval, 1.02–1.10) with similar estimates by sex (odds ratio for men, 1.07; 95% confidence interval, 1.002–1.14; odds ratio for women, 1.06; 95% confidence interval, 0.995–1.12). Sensitivity analyses including adjustment for insulin-like growth factor 1 showed directionally consistent results. Conclusion: Higher basal metabolic rate might increase cancer risk. Basal metabolic rate as a potential modifiable target of cancer prevention warrants further study.
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Affiliation(s)
- Jack C M Ng
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - C Mary Schooling
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China.,Department of Environmental, Occupational, and Geospatial Health Sciences, Graduate School of Public Health and Health Policy, The City University of New York, New York, NY, United States
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20
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Hägg S, Jylhävä J. Sex differences in biological aging with a focus on human studies. eLife 2021; 10:e63425. [PMID: 33982659 PMCID: PMC8118651 DOI: 10.7554/elife.63425] [Citation(s) in RCA: 123] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 05/04/2021] [Indexed: 02/06/2023] Open
Abstract
Aging is a complex biological process characterized by hallmark features accumulating over the life course, shaping the individual's aging trajectory and subsequent disease risks. There is substantial individual variability in the aging process between men and women. In general, women live longer than men, consistent with lower biological ages as assessed by molecular biomarkers, but there is a paradox. Women are frailer and have worse health at the end of life, while men still perform better in physical function examinations. Moreover, many age-related diseases show sex-specific patterns. In this review, we aim to summarize the current knowledge on sexual dimorphism in human studies, with support from animal research, on biological aging and illnesses. We also attempt to place it in the context of the theories of aging, as well as discuss the explanations for the sex differences, for example, the sex-chromosome linked mechanisms and hormonally driven differences.
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Affiliation(s)
- Sara Hägg
- Department of Medical Epidemiology and Biostatistics, Karolinska InstitutetStockholmSweden
| | - Juulia Jylhävä
- Department of Medical Epidemiology and Biostatistics, Karolinska InstitutetStockholmSweden
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21
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Werneck AO, Oyeyemi AL, Collings PJ, Cyrino ES, Ronque ERV, Szwarcwald CL, Sardinha LB, Silva DRP. Physical activity can attenuate, but not eliminate, the negative relationships of high TV viewing with some chronic diseases: findings from a cohort of 60 202 Brazilian adults. J Public Health (Oxf) 2021; 43:e7-e15. [PMID: 31774533 DOI: 10.1093/pubmed/fdz148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND This study examined the joint associations of leisure time physical activity and television (TV) viewing time with the prevalence of chronic diseases among Brazilian adults. METHODS Data from the Brazilian Health Survey, a nationally representative survey conducted in 2013 (n = 60 202; ≥18 years), were used. Time spent in TV viewing and leisure physical activity, physician diagnoses of diabetes, hypertension and heart disease and information on co-variables (chronological age, education, ethnicity, candies/sweets consumption, sodium intake and tobacco smoking) were collected via interview. Descriptive statistics (mean and 95% confidence interval) and logistic regression models were used for etiological analyses. RESULTS Physical activity attenuated but did not eliminate the risk associated with high TV viewing for at least one chronic disease in the general population [odds ratio [OR]: 1.29 (1.11-1.50)] and among women [OR: 1.31 (1.09-1.60)], adults [OR: 1.24 (1.05-1.46)] and older adults [OR: 1.63 (1.05-2.53)]. On the other hand, physical activity eliminated the risk associated with high TV viewing for at least one chronic disease among men [OR: 1.24 (0.98-1.58)]. CONCLUSIONS We conclude that physical activity can attenuate but not eliminate the negative effects of high TV viewing on chronic disease among subgroups of Brazilian adults.
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Affiliation(s)
- André O Werneck
- Department of Physical Education,Metabolism, Nutrition and Exercise Laboratory, Londrina State University, Londrina, PR, Brazil.,Department of Physical Education, Metabolism, Nutrition and Exercise Laboratory, Londrina State University, Londrina, PR, Brazil
| | - Adewale L Oyeyemi
- Department of Physiotherapy, College of Medical Sciences, University of Maiduguri, Borno State, Nigeria
| | - Paul J Collings
- Bradford Institute for Health Research, Bradford Teaching Hospitals Foundation Trust, Bradford, UK
| | - Edilson S Cyrino
- Department of Physical Education, Metabolism, Nutrition and Exercise Laboratory, Londrina State University, Londrina, PR, Brazil
| | - Enio R V Ronque
- Department of Physical Education, Metabolism, Nutrition and Exercise Laboratory, Londrina State University, Londrina, PR, Brazil
| | | | - Luís B Sardinha
- Exercise and Health Laboratory, Faculdade de Motricidade Humana, CIPER - Universidade de Lisboa, Portugal
| | - Danilo R P Silva
- Department of Physical Education, Federal University of Sergipe - UFS, São Cristóvão, Brazil
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22
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Briga M, Verhulst S. Mosaic metabolic ageing: Basal and standard metabolic rates age in opposite directions and independent of environmental quality, sex and life span in a passerine. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13785] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Michael Briga
- Groningen Institute for Evolutionary Life Sciences University of Groningen Groningen The Netherlands
| | - Simon Verhulst
- Groningen Institute for Evolutionary Life Sciences University of Groningen Groningen The Netherlands
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23
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Zampino M, Semba RD, Adelnia F, Spencer RG, Fishbein KW, Schrack JA, Simonsick EM, Ferrucci L. Greater Skeletal Muscle Oxidative Capacity Is Associated With Higher Resting Metabolic Rate: Results From the Baltimore Longitudinal Study of Aging. J Gerontol A Biol Sci Med Sci 2021; 75:2262-2268. [PMID: 32201887 DOI: 10.1093/gerona/glaa071] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Indexed: 12/20/2022] Open
Abstract
Resting metabolic rate (RMR) tends to decline with aging. The age-trajectory of decline in RMR is similar to changes that occur in muscle mass, muscle strength, and fitness, but while the decline in these phenotypes has been related to changes of mitochondrial function and oxidative capacity, whether lower RMR is associated with poorer mitochondrial oxidative capacity is unknown. In 619 participants of the Baltimore Longitudinal Study of Aging, we analyzed the cross-sectional association between RMR (kcal/day), assessed by indirect calorimetry, and skeletal muscle maximal oxidative phosphorylation capacity, assessed as postexercise phosphocreatine recovery time constant (τ PCr), by phosphorous magnetic resonance spectroscopy. Linear regression models were used to evaluate the relationship between τ PCr and RMR, adjusting for potential confounders. Independent of age, sex, lean body mass, muscle density, and fat mass, higher RMR was significantly associated with shorter τ PCr, indicating greater mitochondrial oxidative capacity. Higher RMR is associated with a higher mitochondrial oxidative capacity in skeletal muscle. This association may reflect a relationship between better muscle quality and greater mitochondrial health.
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Affiliation(s)
- Marta Zampino
- National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - Richard D Semba
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Fatemeh Adelnia
- Institute of Imaging Science, Vanderbilt University, Nashville, Tennessee
| | - Richard G Spencer
- National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - Kenneth W Fishbein
- National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - Jennifer A Schrack
- Center on Aging and Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Eleanor M Simonsick
- National Institute on Aging, National Institutes of Health, Baltimore, Maryland
| | - Luigi Ferrucci
- National Institute on Aging, National Institutes of Health, Baltimore, Maryland
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24
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Kang HW, Seo SP, Lee HY, Kim K, Ha YS, Kim WT, Kim YJ, Yun SJ, Kim WJ, Lee SC. A high basal metabolic rate is an independent predictor of stone recurrence in obese patients. Investig Clin Urol 2021; 62:195-200. [PMID: 33660447 PMCID: PMC7940852 DOI: 10.4111/icu.20200438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/24/2020] [Accepted: 11/12/2020] [Indexed: 12/29/2022] Open
Abstract
Purpose Basal metabolic rate (BMR) is an indicator of overall body metabolism and may portend unique aberrations in urine physico-chemistry and stone recurrence. The present study examined the effect of predicted BMR on 24 hours urinary metabolic profiles and stone recurrence in obese stone patients. Materials and Methods Data from 308 obese patients (body mass index [BMI] ≥30 kg/m2) diagnosed with urinary stone disease between 2003 and 2015 were analyzed retrospectively. BMR was calculated using the Harris–Benedict equation, and patients were classified into two predicted BMR categories (<1,145 kcal/day, ≥1,145 kcal/day). Urinary metabolic parameters and risk of stone recurrence were compared between the two groups. Results The high BMR group was more likely to be younger and female, and to have a high BMI and lower incidence of diabetes than the low BMR group (each p<0.05). There was a positive correlation between BMR and 24 hours urinary sodium, uric acid, and phosphate excretion. The amounts of stone-forming constituents such as calcium and uric acid were significantly higher in the high BMR group. Kaplan–Meier estimates showed that the high BMR group had a significantly shorter stone recurrence-free period than the low BMR group (log-rank test, p<0.001). Multivariate Cox regression analyses revealed that predicted BMR was an independent factor of stone recurrence (hazard ratio, 2.759; 95% confidence interval, 1.413–5.386; p=0.003). Conclusions BMR may be an easily measured parameter that can be used to identify risk of stone recurrence in obese stone patients.
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Affiliation(s)
- Ho Won Kang
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Sung Pil Seo
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Hee Youn Lee
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Kyeong Kim
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Yun Sok Ha
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Won Tae Kim
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Yong June Kim
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Seok Joong Yun
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Wun Jae Kim
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Sang Cheol Lee
- Department of Urology, Chungbuk National University College of Medicine, Cheongju, Korea.
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Yashin AI, Wu D, Arbeev K, Yashkin AP, Akushevich I, Bagley O, Duan M, Ukraintseva S. Roles of interacting stress-related genes in lifespan regulation: insights for translating experimental findings to humans. JOURNAL OF TRANSLATIONAL GENETICS AND GENOMICS 2021; 5:357-379. [PMID: 34825130 PMCID: PMC8612394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
AIM Experimental studies provided numerous evidence that caloric/dietary restriction may improve health and increase the lifespan of laboratory animals, and that the interplay among molecules that sense cellular stress signals and those regulating cell survival can play a crucial role in cell response to nutritional stressors. However, it is unclear whether the interplay among corresponding genes also plays a role in human health and lifespan. METHODS Literature about roles of cellular stressors have been reviewed, such as amino acid deprivation, and the integrated stress response (ISR) pathway in health and aging. Single nucleotide polymorphisms (SNPs) in two candidate genes (GCN2/EIF2AK4 and CHOP/DDIT3) that are closely involved in the cellular stress response to amino acid starvation, have been selected using information from experimental studies. Associations of these SNPs and their interactions with human survival in the Health and Retirement Study data have been estimated. The impact of collective associations of multiple interacting SNP pairs on survival has been evaluated, using a recently developed composite index: the SNP-specific Interaction Polygenic Risk Score (SIPRS). RESULTS Significant interactions have been found between SNPs from GCN2/EIF2AK4 and CHOP/DDI3T genes that were associated with survival 85+ compared to survival between ages 75 and 85 in the total sample (males and females combined) and in females only. This may reflect sex differences in genetic regulation of the human lifespan. Highly statistically significant associations of SIPRS [constructed for the rs16970024 (GCN2/EIF2AK4) and rs697221 (CHOP/DDIT3)] with survival in both sexes also been found in this study. CONCLUSION Identifying associations of the genetic interactions with human survival is an important step in translating the knowledge from experimental to human aging research. Significant associations of multiple SNPxSNP interactions in ISR genes with survival to the oldest old age that have been found in this study, can help uncover mechanisms of multifactorial regulation of human lifespan and its heterogeneity.
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Abstract
Aging occurs in all sexually reproducing organisms. That is, physical degradation over time occurs from conception until death. While the life span of a species is often viewed as a benchmark of aging, the pace and intensity of physical degradation over time varies owing to environmental influences, genetics, allocation of energetic investment, and phylogenetic history. Significant variation in aging within mammals, primates, and great apes, including humans, is therefore common across species. The evolution of aging in the hominin lineage is poorly known; however, clues can be derived from the fossil record. Ongoing advances continue to shed light on the interactions between life-history variables such as reproductive effort and aging. This review presents our current understanding of the evolution of aging in humans, drawing on population variation, comparative research, trade-offs, and sex differences, as well as tissue-specific patterns of physical degradation. Implications for contemporary health challenges and the future of human evolutionary anthropology research are also discussed.
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27
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Zampino M, AlGhatrif M, Kuo PL, Simonsick EM, Ferrucci L. Longitudinal Changes in Resting Metabolic Rates with Aging Are Accelerated by Diseases. Nutrients 2020; 12:nu12103061. [PMID: 33036360 PMCID: PMC7600750 DOI: 10.3390/nu12103061] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/29/2020] [Accepted: 10/02/2020] [Indexed: 12/24/2022] Open
Abstract
Resting metabolic rate (RMR) declines with aging and is related to changes in health status, but how specific health impairments impact basal metabolism over time has been largely unexplored. We analyzed the association of RMR with 15 common age-related chronic diseases for up to 13 years of follow-up in a population of 997 participants to the Baltimore Longitudinal Study of Aging. At each visit, participants underwent measurements of RMR by indirect calorimetry and body composition by DEXA. Linear regression models and linear mixed effect models were used to test cross-sectional and longitudinal associations of RMR and changes in disease status. Cancer and diabetes were associated with higher RMR at baseline. Independent of covariates, prevalent COPD and cancer, as well as incident diabetes, heart failure, and CKD were associated with a steeper decline in RMR over time. Chronic diseases seem to have a two-phase association with RMR. Initially, RMR may increase because of the high cost of resiliency homeostatic mechanisms. However, as the reserve capacity becomes exhausted, a catabolic cascade becomes unavoidable, resulting in loss of total and metabolically active mass and consequent RMR decline.
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28
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Guo S, Wang X, Kang L. Special Significance of Non- Drosophila Insects in Aging. Front Cell Dev Biol 2020; 8:576571. [PMID: 33072758 PMCID: PMC7536347 DOI: 10.3389/fcell.2020.576571] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/04/2020] [Indexed: 12/30/2022] Open
Abstract
Aging is the leading risk factor of human chronic diseases. Understanding of aging process and mechanisms facilitates drug development and the prevention of aging-related diseases. Although many aging studies focus on fruit fly as a canonical insect system, minimal attention is paid to the potentially significant roles of other insects in aging research. As the most diverse group of animals, insects provide many aging types and important complementary systems for aging studies. Insect polyphenism represents a striking example of the natural variation in longevity and aging rate. The extreme intraspecific variations in the lifespan of social insects offer an opportunity to study how aging is differentially regulated by social factors. Insect flight, as an extremely high-intensity physical activity, is suitable for the investigation of the complex relationship between metabolic rate, oxidative stress, and aging. Moreover, as a "non-aging" state, insect diapause not only slows aging process during diapause phase but also affects adult longevity during/after diapause. In the past two decades, considerable progress has been made in understanding the molecular basis of aging regulation in insects. Herein, the recent research progress in non-Drosophila insect aging was reviewed, and its potential utilization in aging in the future was discussed.
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Affiliation(s)
- Siyuan Guo
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Xianhui Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Le Kang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
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29
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Makita H, Suzuki M, Konno S, Shimizu K, Nasuhara Y, Nagai K, Akiyama Y, Fuke S, Saito H, Igarashi T, Takeyabu K, Nishimura M. Unique Mortality Profile in Japanese Patients with COPD: An Analysis from the Hokkaido COPD Cohort Study. Int J Chron Obstruct Pulmon Dis 2020; 15:2081-2090. [PMID: 32943861 PMCID: PMC7481303 DOI: 10.2147/copd.s264437] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/18/2020] [Indexed: 01/26/2023] Open
Abstract
Purpose Causes of death may be unique and different in Japanese patients with COPD because they are generally older, thinner, experience fewer exacerbations, and live longer than those in other countries. We investigated the detailed mortality profile in the Hokkaido COPD cohort study, which completed a 10-year follow-up with a very low dropout rate. Patients and Methods We prospectively examined the 10-year natural history in 279 Japanese patients with COPD (GOLD 1, 26%; GOLD 2, 45%; GOLD 3, 24%; and GOLD 4, 5%). The majority of patients were male, and the average age at baseline was 69 years old. About 95% of all patients had accurate mortality data. The risk factors for mortality were also analyzed. Results During the 10 years, 112 patients (40%) died. Their median survival time was 6.1 years (interquartile range: 4.7–7.9 years), and age at death was 79 ± 6 years old (mean ± SD). Respiratory diseases, including pneumonia, were the leading causes of death in 45 (40%), followed by lung cancer in 24 (21%), other cancers in 18 (16%), and cardiovascular diseases in 12 (11%). In particular, lung cancer-related death was equally distributed across all COPD stages, with a higher proportion of lung cancer in the relatively younger generation (<64 years old). Older age at baseline, lower BMI, and severer emphysema were significant risk factors for all-cause mortality. Conclusion The unique mortality profile observed in this study should be considered when designing strategies for the management of patients with COPD in any geographic region.
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Affiliation(s)
- Hironi Makita
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.,Hokkaido Medical Research Institute for Respiratory Diseases, Sapporo, Japan
| | - Masaru Suzuki
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Satoshi Konno
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kaoruko Shimizu
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yasuyuki Nasuhara
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Katsura Nagai
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.,Center for Respiratory Diseases, JCHO Hokkaido Hospital, Sapporo, Japan
| | - Yasushi Akiyama
- Center for Respiratory Diseases, JCHO Hokkaido Hospital, Sapporo, Japan
| | - Satoshi Fuke
- Department of Internal Medicine, KKR Sapporo Medical Center, Sapporo, Japan
| | - Hiroshi Saito
- Department of Internal Medicine, Hokkaido Chuo Rosai Hospital, Iwamizawa, Japan
| | - Takeshi Igarashi
- Department of Internal Medicine, Hokkaido Chuo Rosai Hospital, Iwamizawa, Japan
| | - Kimihiro Takeyabu
- Department of Respiratory Medicine, Otaru Kyokai Hospital, Otaru, Japan
| | - Masaharu Nishimura
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.,Hokkaido Medical Research Institute for Respiratory Diseases, Sapporo, Japan
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30
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Kliemann N, Murphy N, Viallon V, Freisling H, Tsilidis KK, Rinaldi S, Mancini FR, Fagherazzi G, Boutron-Ruault MC, Boeing H, Schulze MB, Masala G, Krogh V, Sacerdote C, de Magistris MS, Bueno-de-Mesquita B, Weiderpass E, Kühn T, Kaaks R, Jakszyn P, Redondo-Sánchez D, Amiano P, Chirlaque MD, Gurrea AB, Ericson U, Drake I, Nøst TH, Aune D, May AM, Tjønneland A, Dahm CC, Overvad K, Tumino R, Quirós JR, Trichopoulou A, Karakatsani A, La Vecchia C, Nilsson LM, Riboli E, Huybrechts I, Gunter MJ. Predicted basal metabolic rate and cancer risk in the European Prospective Investigation into Cancer and Nutrition. Int J Cancer 2020; 147:648-661. [PMID: 31652358 DOI: 10.1002/ijc.32753] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/24/2019] [Accepted: 10/07/2019] [Indexed: 12/27/2022]
Abstract
Emerging evidence suggests that a metabolic profile associated with obesity may be a more relevant risk factor for some cancers than adiposity per se. Basal metabolic rate (BMR) is an indicator of overall body metabolism and may be a proxy for the impact of a specific metabolic profile on cancer risk. Therefore, we investigated the association of predicted BMR with incidence of 13 obesity-related cancers in the European Prospective Investigation into Cancer and Nutrition (EPIC). BMR at baseline was calculated using the WHO/FAO/UNU equations and the relationships between BMR and cancer risk were investigated using multivariable Cox proportional hazards regression models. A total of 141,295 men and 317,613 women, with a mean follow-up of 14 years were included in the analysis. Overall, higher BMR was associated with a greater risk for most cancers that have been linked with obesity. However, among normal weight participants, higher BMR was associated with elevated risks of esophageal adenocarcinoma (hazard ratio per 1-standard deviation change in BMR [HR1-SD ]: 2.46; 95% CI 1.20; 5.03) and distal colon cancer (HR1-SD : 1.33; 95% CI 1.001; 1.77) among men and with proximal colon (HR1-SD : 1.16; 95% CI 1.01; 1.35), pancreatic (HR1-SD : 1.37; 95% CI 1.13; 1.66), thyroid (HR1-SD : 1.65; 95% CI 1.33; 2.05), postmenopausal breast (HR1-SD : 1.17; 95% CI 1.11; 1.22) and endometrial (HR1-SD : 1.20; 95% CI 1.03; 1.40) cancers in women. These results indicate that higher BMR may be an indicator of a metabolic phenotype associated with risk of certain cancer types, and may be a useful predictor of cancer risk independent of body fatness.
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Affiliation(s)
| | - Neil Murphy
- International Agency for Research on Cancer, Lyon, France
| | - Vivian Viallon
- International Agency for Research on Cancer, Lyon, France
| | | | - Konstantinos K Tsilidis
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Sabina Rinaldi
- International Agency for Research on Cancer, Lyon, France
| | - Francesca R Mancini
- CESP, Faculté de Médecine, Université Paris-Sud, Villejuif, France
- Faculté de Médecine, Université de Versailles St-Quentin En-Yvelines, Villejuif, France
- INSERM, Université Paris-Saclay, Villejuif, France
- Gustave Roussy, Villejuif, France
| | - Guy Fagherazzi
- CESP, Faculté de Médecine, Université Paris-Sud, Villejuif, France
- Faculté de Médecine, Université de Versailles St-Quentin En-Yvelines, Villejuif, France
- INSERM, Université Paris-Saclay, Villejuif, France
- Gustave Roussy, Villejuif, France
| | - Marie-Christine Boutron-Ruault
- CESP, Faculté de Médecine, Université Paris-Sud, Villejuif, France
- Faculté de Médecine, Université de Versailles St-Quentin En-Yvelines, Villejuif, France
- INSERM, Université Paris-Saclay, Villejuif, France
- Gustave Roussy, Villejuif, France
| | - Heiner Boeing
- Department of Epidemiology, German Institute of Human Nutrition Potsdam, Rehbruecke, Germany
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam, Rehbruecke, Nuthetal, Germany
- Institute of Nutrition Science, University of Potsdam, Nuthetal, Germany
| | - Giovanna Masala
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network - ISPRO, Florence, Italy
| | - Vittorio Krogh
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano,Via Venezian, Milan, Italy
| | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, Città della Salute e della Scienza University-Hospital and Center for Cancer Prevention (CPO), Turin, Italy
| | | | - Bas Bueno-de-Mesquita
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Department for Determinants of Chronic Diseases (DCD), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
- Department of Gastroenterology and Hepatology, University Medical Centre (UMC), Utrecht, The Netherlands
- Department of Social & Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Elisabete Weiderpass
- International Agency for Research on Cancer, Lyon, France
- Department of Community Medicine, UiT the Arctic University of Norway, Tromsø, Norway
| | - Tilman Kühn
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Paula Jakszyn
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology- IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
- Facultat Ciències Salut Blanquerna, Universitat Ramon Llull, Barcelona, Spain
| | - Daniel Redondo-Sánchez
- CIBER Epidemiology and Public Health CIBERESP, Madrid, Spain
- Andalusian School of Public Health (EASP), Granada, Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA). Universidad de Granada, Granada, Spain
| | - Pilar Amiano
- CIBER Epidemiology and Public Health CIBERESP, Madrid, Spain
- Public Health Division of Gipuzkoa, BioDonostia Research Institute, San Sebastian, Spain
| | - Maria-Dolores Chirlaque
- CIBER Epidemiology and Public Health CIBERESP, Madrid, Spain
- Department of Epidemiology, Regional Health Council, IMIB-Arrixaca, Murcia University, Murcia, Spain
| | - Aurelio B Gurrea
- CIBER Epidemiology and Public Health CIBERESP, Madrid, Spain
- Navarra Public Health Institute, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - Ulrica Ericson
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Isabel Drake
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Therese H Nøst
- Department of Community Medicine, UiT the Arctic University of Norway, Tromsø, Norway
| | - Dagfinn Aune
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Department of Nutrition, Bjørknes University College, Oslo, Norway
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University, Hospital, Oslo, Norway
| | - Anne M May
- Department of Epidemiology, Julius Center Research Program Cancer, Utrecht, The Netherlands
| | - Anne Tjønneland
- Diet, Genes and Environment, Danish Cancer Society Research Center, København, Denmark
| | | | - Kim Overvad
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, Azienda Sanitaria Provinciale (ASP), Ragusa, Italy
| | | | | | - Anna Karakatsani
- Hellenic Health Foundation, Athens, Greece
- Pulmonary Medicine Department, School of Medicine, National and Kapodistrian University of Athens, "ATTIKON" University Hospital, Haidari, Greece
| | - Carlo La Vecchia
- Hellenic Health Foundation, Athens, Greece
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Lena M Nilsson
- Public Health and Clinical Medicine, Sustainable Health, Umeå University, Umea, Sweden
| | - Elio Riboli
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | | | - Marc J Gunter
- International Agency for Research on Cancer, Lyon, France
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Cawthon RM, Meeks HD, Sasani TA, Smith KR, Kerber RA, O'Brien E, Baird L, Dixon MM, Peiffer AP, Leppert MF, Quinlan AR, Jorde LB. Germline mutation rates in young adults predict longevity and reproductive lifespan. Sci Rep 2020; 10:10001. [PMID: 32561805 PMCID: PMC7305191 DOI: 10.1038/s41598-020-66867-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/28/2020] [Indexed: 12/22/2022] Open
Abstract
Ageing may be due to mutation accumulation across the lifespan, leading to tissue dysfunction, disease, and death. We tested whether germline autosomal mutation rates in young adults predict their remaining survival, and, for women, their reproductive lifespans. Age-adjusted mutation rates (AAMRs) in 61 women and 61 men from the Utah CEPH (Centre d’Etude du Polymorphisme Humain) families were determined. Age at death, cause of death, all-site cancer incidence, and reproductive histories were provided by the Utah Population Database, Utah Cancer Registry, and Utah Genetic Reference Project. Higher AAMRs were significantly associated with higher all-cause mortality in both sexes combined. Subjects in the top quartile of AAMRs experienced more than twice the mortality of bottom quartile subjects (hazard ratio [HR], 2.07; 95% confidence interval [CI], 1.21–3.56; p = 0.008; median survival difference = 4.7 years). Fertility analyses were restricted to women whose age at last birth (ALB) was ≥ 30 years, the age when fertility begins to decline. Women with higher AAMRs had significantly fewer live births and a younger ALB. Adult germline mutation accumulation rates are established in adolescence, and later menarche in women is associated with delayed mutation accumulation. We conclude that germline mutation rates in healthy young adults may provide a measure of both reproductive and systemic ageing. Puberty may induce the establishment of adult mutation accumulation rates, just when DNA repair systems begin their lifelong decline.
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Affiliation(s)
- Richard M Cawthon
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States.
| | - Huong D Meeks
- Population Science, Huntsman Cancer Institute, University of Utah Health, Salt Lake City, UT, United States
| | - Thomas A Sasani
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States
| | - Ken R Smith
- Population Science, Huntsman Cancer Institute, University of Utah Health, Salt Lake City, UT, United States
| | - Richard A Kerber
- Department of Health Management & Systems Sciences, University of Louisville, Louisville, KY, United States
| | - Elizabeth O'Brien
- Department of Health Management & Systems Sciences, University of Louisville, Louisville, KY, United States
| | - Lisa Baird
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States
| | - Melissa M Dixon
- Department of Pediatrics, University of Utah, Salt Lake City, UT, United States
| | - Andreas P Peiffer
- Department of Pediatrics, University of Utah, Salt Lake City, UT, United States
| | - Mark F Leppert
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States
| | - Aaron R Quinlan
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States.,Department of Biomedical Informatics, University of Utah, Salt Lake City, UT, United States.,USTAR Center for Genetic Discovery, University of Utah, Salt Lake City, UT, United States
| | - Lynn B Jorde
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States.,USTAR Center for Genetic Discovery, University of Utah, Salt Lake City, UT, United States
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32
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Dose-Response Relationships Between Body Composition Indices and All-Cause Mortality in Older Japanese Adults. J Am Med Dir Assoc 2020; 21:726-733.e4. [DOI: 10.1016/j.jamda.2019.11.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/25/2019] [Accepted: 11/22/2019] [Indexed: 12/19/2022]
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33
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Hollstein T, Basolo A, Ando T, Votruba SB, Walter M, Krakoff J, Piaggi P. Recharacterizing the Metabolic State of Energy Balance in Thrifty and Spendthrift Phenotypes. J Clin Endocrinol Metab 2020; 105:5771299. [PMID: 32118268 PMCID: PMC7341172 DOI: 10.1210/clinem/dgaa098] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 02/26/2020] [Indexed: 01/20/2023]
Abstract
PURPOSE The human thrifty phenotype hypothesis presupposes that lower 24-hour (24h) energy expenditure (24EE) during famine preserves body mass and promotes survival. The prevailing view defines thrifty individuals as having a lower 24EE during fasting. However, it is also plausible that the greater decline in 24EE during fasting in thrifty individuals is due to higher 24EE during energy balance conditions (ENBAL). Herein, we provide evidence that this is indeed the case. METHODS In 108 healthy subjects, 24EE was measured in a whole-room indirect calorimeter both during ENBAL and 24h fasting conditions. Subjects were categorized as thrifty or spendthrift based on the median value (-162 kcal/day) of the difference in 24EE (adjusted for body composition) between fasting and ENBAL conditions. Concomitant 24h urinary catecholamines were assessed by liquid chromatography-mass spectrometry. RESULTS Compared to ENBAL, 24EE decreased during 24h fasting by 172 kcal/day (standard deviation = 93; range, -470 to 122). A greater-than-median decrease in 24EE ("thriftier" phenotype) was due to higher 24EE during ENBAL (+124 kcal/day; P < 0.0001) but not to lower 24EE during fasting (P = 0.35). Greater fasting-induced increase in epinephrine was associated with concomitant lower decrease in 24EE (r = 0.27; P = 0.006). MAIN CONCLUSION The greater decrease in 24EE during acute fasting (which characterizes the thrifty phenotype) is not due to reduced metabolic rate during fasting but to a relatively higher 24EE during feeding conditions, and this decrease in 24EE during fasting is accompanied by a smaller increase in epinephrine. These results recharacterize the prevailing view of the short-term 24EE responses that define the human metabolic phenotypes. Clinical Trials: NCT00523627, NCT00687115, NCT02939404.
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Affiliation(s)
- Tim Hollstein
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona
| | - Alessio Basolo
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona
| | - Takafumi Ando
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona
| | - Susanne B Votruba
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona
| | - Mary Walter
- Clinical Core Laboratory, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland
| | - Jonathan Krakoff
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona
| | - Paolo Piaggi
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona
- Department of Information Engineering, University of Pisa, Pisa, Italy
- Correspondence and Reprint Rerquests: Paolo Piaggi, PhD, FTOS, Obesity and Diabetes Clinical Research Section, National Institute of Diabetes and Digestive and Kidney Diseases, 4212 N 16th Street, Phoenix, AZ 85016. E-mail: ,
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34
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Association between Resting Energy Expenditure and Heat Pattern in Traditional Medicine. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:4093731. [PMID: 32308707 PMCID: PMC7132353 DOI: 10.1155/2020/4093731] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/29/2020] [Accepted: 02/12/2020] [Indexed: 11/17/2022]
Abstract
Many symptoms of heat pattern (HP) in traditional medicine are related to thermoregulation; however, research on the association between energy expenditure characteristics and HP is limited. We aimed to study the association between HP and resting energy expenditure (REE). A total of 109 participants were divided into the HP and non-HP groups based on a self-administered questionnaire and their REE was measured using an indirect calorimeter. Multiple logistic regression models were used to calculate the odds ratio (OR) of HP according to the level of REE. No significant differences in age, anthropometric, and body composition characteristics were observed between the HP and the non-HP groups. The likelihood of having an HP significantly increased with higher REE after adjustment for fat-free mass (OR 1.22 [95% CI 1.03-1.46]) and also after additional adjustment for sex and age (OR 1.21 [95% CI 1.01-1.46]). These results suggest that increased REE could be a biological characteristic of HP. Future studies are necessary to investigate the underlying mechanisms associated with the differing energy expenditure in HP.
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El Bizri I, Batsis JA. Linking epidemiology and molecular mechanisms in sarcopenic obesity in populations. Proc Nutr Soc 2020; 79:1-9. [PMID: 32054546 PMCID: PMC7426243 DOI: 10.1017/s0029665120000075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recognising the adverse outcomes that occur to obese adults over the age of 65 years with loss of muscle mass or strength, or sarcopenia is important. We will review the definitions of sarcopenic obesity, and attempt to link the epidemiological data with the molecular pathways. Upon understanding the model of sarcopenic obesity, we will discuss targeted interventions and further challenges to address this geriatric syndrome. As our understanding of this syndrome is growing, more data are emerging to help define sarcopenic obesity across different populations. We now have a better understanding of biological pathways in ageing such as changes in body composition, sex-specific hormones, pro-inflammatory markers and myocellular mechanisms. We will review a comprehensive model that shows the interactions between the different pathways leading to sarcopenic obesity. Such a model will explain the promising interventions in place and invite future ones. Sarcopenic obesity is an important geriatric syndrome with significant clinical and healthcare implications. Further research is needed to harmonise definitions, clarify mechanisms contributing to syndrome and use evidence-based interventions to target biological mechanisms in both research and clinical settings.
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Affiliation(s)
- Issam El Bizri
- Geisel School of Medicine at Dartmouth, Lebanon, NH
- Section of General Internal Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - John A. Batsis
- Geisel School of Medicine at Dartmouth, Lebanon, NH
- Section of General Internal Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH
- The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH
- Dartmouth Centers for Health and Aging, Dartmouth College, Hanover, NH
- Section of Weight & Wellness, Dartmouth-Hitchcock Medical Center, Lebanon, NH
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36
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Liu S, Wei Y, Zhang SH. The C3HC type zinc-finger protein (ZFC3) interacting with Lon/MAP1 is important for mitochondrial gene regulation, infection hypha development and longevity of Magnaporthe oryzae. BMC Microbiol 2020; 20:23. [PMID: 32000669 PMCID: PMC6993355 DOI: 10.1186/s12866-020-1711-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/22/2020] [Indexed: 12/20/2022] Open
Abstract
Background The rice blast is a typical fungal disease caused by Magnaporthe oryzae, and the mitochondrial ATP-dependent Lon protease (MAP1) has been proven to be involved in blast development. We previously screened a C3HC type Zinc-finger domain protein (ZFC3), which is interacted with MAP1. The purpose of this research was to study the biological function of ZFC3 protein in M. oryzae. Results We first confirmed that the ZFC3-RFP fusion protein is localized within the mitochondria. The deleted mutant strains of ZFC3 (∆ZFC3) showed the enhanced expression level of mtATP6, particularly mtATP8, and almost unchanged nATP9. ΔZFC3 produces more conidia and more tolerance to multiple stressors. The knock-out strain shows more melanin accumulation suggests the susceptibility to aging. ΔZFC3 displays faster early-stage hypha infiltration involved in MAP1-mediated pathogenicity in host rice. Conclusion These results support the view that ZFC3 is a key regulator involved in gene regulation, stress response, cell wall integrity, longevity, conidiation, infection hypha development and MAP1-mediated pathogenicity in M. oryzae.
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Affiliation(s)
- Shaoshuai Liu
- College of Plant Sciences, Jilin University, Changchun, China.,Present address: Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Heinrich Buff-Ring 26-32, D-35392, Giessen, Germany
| | - Yi Wei
- College of Plant Sciences, Jilin University, Changchun, China
| | - Shi-Hong Zhang
- College of Plant Sciences, Jilin University, Changchun, China.
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37
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Montano M, Bhasin S, D'Aquila RT, Erlandson KM, Evans WJ, Funderburg NT, Justice A, Ndhlovu LC, Ojikutu B, Pahor M, Pahwa S, Ryan AS, Schrack J, Schultz MB, Sebastiani P, Sinclair DA, Tripp J, Walker B, Womack JA, Yung R, Reeves RK. Harvard HIV and Aging Workshop: Perspectives and Priorities from Claude D. Pepper Centers and Centers for AIDS Research. AIDS Res Hum Retroviruses 2019; 35:999-1012. [PMID: 31456412 DOI: 10.1089/aid.2019.0130] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
People aging with HIV (PAWH) infection experience greater impairments in physical and cognitive function, in addition to higher rates of peripheral comorbid conditions (e.g., renal failure, diabetes, bone fracture, hypertension, cardiovascular disease, polypharmacy, and multimorbidity). While multifactorial drivers, including HIV infection itself, antiretroviral therapy-related toxicities, disparities in care, and biobehavioral factors, likely contribute, there remains an overarching question as to what are the relevant age-related mechanisms and models that could inform interventions that promote health span and life span in PAWH? This workshop was convened to hear from experts on the biology of aging and HIV researchers studying PAWH to focus on advancing investigations at the interface of HIV and Aging. In this study, we summarize the discussions from the Harvard Center for AIDS Research and Boston Claude D. Pepper cosponsored workshop on HIV and Aging, which took place in October 2018.
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Affiliation(s)
- Monty Montano
- Boston Pepper OAIC, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Shalender Bhasin
- Boston Pepper OAIC, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | | | | | - William J Evans
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, California
| | - Nicholas T Funderburg
- Division of Medical Laboratory Science, School of Health and Rehabilitation Sciences, Ohio State University, Columbus, Ohio
| | - Amy Justice
- Department of Medicine, Yale University School of Medicine, New Haven, Connecticut
- VA Connecticut Healthcare System, West Haven, Connecticut
| | - Lishomwa C Ndhlovu
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Bisola Ojikutu
- Division of Global Health Equity, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Marco Pahor
- Institute on Aging, Department of Aging and Geriatric Research, College of Medicine, University of Florida, Gainesville, Florida
| | - Savita Pahwa
- Department of Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, Florida
| | - Alice S Ryan
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland
- Baltimore Veterans Affairs Geriatric Research Education and Clinical Center and Research and Development Service, Baltimore, Maryland
| | - Jennifer Schrack
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Michael B Schultz
- Department of Genetics, Paul F. Glenn Labs for the Biology of Aging, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts
| | - Paola Sebastiani
- Department of Biostatistics, Boston University, Boston, Massachusetts
| | - David A Sinclair
- Department of Genetics, Paul F. Glenn Labs for the Biology of Aging, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts
| | - Julia Tripp
- Harvard University Center for AIDS Research, Cambridge, Massachusetts
| | - Bruce Walker
- Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts
| | - Julie A Womack
- VA Connecticut Healthcare System, West Haven, Connecticut
- Yale School of Nursing, West Haven, Connecticut
| | - Raymond Yung
- Division of Geriatric and Palliative Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - R Keith Reeves
- Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
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38
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Calderón-Larrañaga A, Vetrano DL, Ferrucci L, Mercer SW, Marengoni A, Onder G, Eriksdotter M, Fratiglioni L. Multimorbidity and functional impairment-bidirectional interplay, synergistic effects and common pathways. J Intern Med 2019; 285:255-271. [PMID: 30357990 PMCID: PMC6446236 DOI: 10.1111/joim.12843] [Citation(s) in RCA: 187] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review discusses the interplay between multimorbidity (i.e. co-occurrence of more than one chronic health condition in an individual) and functional impairment (i.e. limitations in mobility, strength or cognition that may eventually hamper a person's ability to perform everyday tasks). On the one hand, diseases belonging to common patterns of multimorbidity may interact, curtailing compensatory mechanisms and resulting in physical and cognitive decline. On the other hand, physical and cognitive impairment impact the severity and burden of multimorbidity, contributing to the establishment of a vicious circle. The circle may be further exacerbated by people's reduced ability to cope with treatment and care burden and physicians' fragmented view of health problems, which cause suboptimal use of health services and reduced quality of life and survival. Thus, the synergistic effects of medical diagnoses and functional status in adults, particularly older adults, emerge as central to assessing their health and care needs. Furthermore, common pathways seem to underlie multimorbidity, functional impairment and their interplay. For example, older age, obesity, involuntary weight loss and sedentarism can accelerate damage accumulation in organs and physiological systems by fostering inflammatory status. Inappropriate use or overuse of specific medications and drug-drug and drug-disease interactions also contribute to the bidirectional association between multimorbidity and functional impairment. Additionally, psychosocial factors such as low socioeconomic status and the direct or indirect effects of negative life events, weak social networks and an external locus of control may underlie the complex interactions between multimorbidity, functional decline and negative outcomes. Identifying modifiable risk factors and pathways common to multimorbidity and functional impairment could aid in the design of interventions to delay, prevent or alleviate age-related health deterioration; this review provides an overview of knowledge gaps and future directions.
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Affiliation(s)
- A Calderón-Larrañaga
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Stockholm University, Stockholm, Sweden
| | - D L Vetrano
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Stockholm University, Stockholm, Sweden.,Department of Geriatrics, Neurosciences and Orthopedics, Catholic University of the Sacred Heart, Rome, Italy.,Centro di Medicina dell'Invecchiamento, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - L Ferrucci
- National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - S W Mercer
- Institute of Health and Wellbeing, General Practice and Primary Care, University of Glasgow, Glasgow, UK
| | - A Marengoni
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - G Onder
- Department of Geriatrics, Neurosciences and Orthopedics, Catholic University of the Sacred Heart, Rome, Italy.,Centro di Medicina dell'Invecchiamento, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - M Eriksdotter
- Department of Neurobiology, Care Sciences and Society, Division of Clinical Geriatrics, Karolinska Institutet, Stockholm, Sweden
| | - L Fratiglioni
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet-Stockholm University, Stockholm, Sweden.,Stockholm Gerontology Research Center, Stockholm, Sweden
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39
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LaCroix AZ, Bellettiere J, Rillamas-Sun E, Di C, Evenson KR, Lewis CE, Buchner DM, Stefanick ML, Lee IM, Rosenberg DE, LaMonte MJ. Association of Light Physical Activity Measured by Accelerometry and Incidence of Coronary Heart Disease and Cardiovascular Disease in Older Women. JAMA Netw Open 2019; 2:e190419. [PMID: 30874775 PMCID: PMC6484645 DOI: 10.1001/jamanetworkopen.2019.0419] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
IMPORTANCE To our knowledge, no studies have examined light physical activity (PA) measured by accelerometry and heart disease in older women. OBJECTIVE To investigate whether higher levels of light PA were associated with reduced risks of coronary heart disease (CHD) or cardiovascular disease (CVD) in older women. DESIGN, SETTING, AND PARTICIPANTS Prospective cohort study of older women from baseline (March 2012 to April 2014) through February 28, 2017, for up to 4.91 years. The setting was community-dwelling participants from the Women's Health Initiative. Participants were ambulatory women with no history of myocardial infarction or stroke. EXPOSURES Data from accelerometers worn for a requested 7 days were used to measure light PA. MAIN OUTCOMES AND MEASURES Cox proportional hazards regression models estimated hazard ratios (HRs) and 95% CIs for physician-adjudicated CHD and CVD events across light PA quartiles adjusting for possible confounders. Light PA was also analyzed as a continuous variable with and without adjustment for moderate to vigorous PA (MVPA). RESULTS Among 5861 women (mean [SD] age, 78.5 [6.7] years), 143 CHD events and 570 CVD events were observed. The HRs for CHD in the highest vs lowest quartiles of light PA were 0.42 (95% CI, 0.25-0.70; P for trend <.001) adjusted for age and race/ethnicity and 0.58 (95% CI, 0.34-0.99; P for trend = .004) after additional adjustment for education, current smoking, alcohol consumption, physical functioning, comorbidity, and self-rated health. Corresponding HRs for CVD in the highest vs lowest quartiles of light PA were 0.63 (95% CI, 0.49-0.81; P for trend <.001) and 0.78 (95% CI, 0.60-1.00; P for trend = .004). The HRs for a 1-hour/day increment in light PA after additional adjustment for MVPA were 0.86 (95% CI, 0.73-1.00; P for trend = .05) for CHD and 0.92 (95% CI, 0.85-0.99; P for trend = .03) for CVD. CONCLUSIONS AND RELEVANCE The present findings support the conclusion that all movement counts for the prevention of CHD and CVD in older women. Large, pragmatic randomized trials are needed to test whether increasing light PA among older women reduces cardiovascular risk.
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Affiliation(s)
- Andrea Z. LaCroix
- Department of Family Medicine and Public Health, University of California, San Diego, La Jolla
| | - John Bellettiere
- Department of Family Medicine and Public Health, University of California, San Diego, La Jolla
- Center for Behavioral Epidemiology and Community Health (C-BEACH), Graduate School of Public Health, San Diego State University, San Diego, California
| | - Eileen Rillamas-Sun
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Chongzhi Di
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Kelly R. Evenson
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill
| | - Cora E. Lewis
- Department of Epidemiology, School of Public Health, The University of Alabama at Birmingham
| | | | - Marcia L. Stefanick
- Stanford Prevention Research Center, Stanford University School of Medicine, Stanford University, Stanford, California
| | - I-Min Lee
- Division of Preventive Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Dori E. Rosenberg
- Kaiser Permanente Washington Health Research Institute, Kaiser Permanente Washington, Seattle
| | - Michael J. LaMonte
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo
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Adult Cardiac Stem Cell Aging: A Reversible Stochastic Phenomenon? OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:5813147. [PMID: 30881594 PMCID: PMC6383393 DOI: 10.1155/2019/5813147] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 11/08/2018] [Indexed: 12/17/2022]
Abstract
Aging is by far the dominant risk factor for the development of cardiovascular diseases, whose prevalence dramatically increases with increasing age reaching epidemic proportions. In the elderly, pathologic cellular and molecular changes in cardiac tissue homeostasis and response to injury result in progressive deteriorations in the structure and function of the heart. Although the phenotypes of cardiac aging have been the subject of intense study, the recent discovery that cardiac homeostasis during mammalian lifespan is maintained and regulated by regenerative events associated with endogenous cardiac stem cell (CSC) activation has produced a crucial reconsideration of the biology of the adult and aged mammalian myocardium. The classical notion of the adult heart as a static organ, in terms of cell turnover and renewal, has now been replaced by a dynamic model in which cardiac cells continuously die and are then replaced by CSC progeny differentiation. However, CSCs are not immortal. They undergo cellular senescence characterized by increased ROS production and oxidative stress and loss of telomere/telomerase integrity in response to a variety of physiological and pathological demands with aging. Nevertheless, the old myocardium preserves an endogenous functionally competent CSC cohort which appears to be resistant to the senescent phenotype occurring with aging. The latter envisions the phenomenon of CSC ageing as a result of a stochastic and therefore reversible cell autonomous process. However, CSC aging could be a programmed cell cycle-dependent process, which affects all or most of the endogenous CSC population. The latter would infer that the loss of CSC regenerative capacity with aging is an inevitable phenomenon that cannot be rescued by stimulating their growth, which would only speed their progressive exhaustion. The resolution of these two biological views will be crucial to design and develop effective CSC-based interventions to counteract cardiac aging not only improving health span of the elderly but also extending lifespan by delaying cardiovascular disease-related deaths.
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Kollia N, Panagiotakos DB, Chrysohoou C, Georgousopoulou E, Tousoulis D, Stefanadis C, Papageorgiou C, Pitsavos C. Determinants of healthy ageing and its relation to 10-year cardiovascular disease incidence: the ATTICA study. Cent Eur J Public Health 2018; 26:3-9. [PMID: 29684290 DOI: 10.21101/cejph.a5165] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 02/23/2018] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The aim of the study was to understand determinants of ageing in relation to future cardiovascular disease (CVD) events at population level, and to explore determinants of healthy ageing and its relation to 10-year CVD incidence among apparently healthy individuals. METHODS In the context of the ATTICA study 453 apparently healthy men (45±13 years) and 400 women (44±18 years) with complete psychological evaluation were studied and followed during 2002-2012. Healthy Ageing Index (HAI) (range 0-7) was calculated based on socio-economical, bio-clinical, psychological, and lifestyle characteristics (i.e. dietary habits and physical activity) of the participants during the baseline examination. CVD incidence during the follow-up period was defined according to ICD-10 criteria. RESULTS Healthy Ageing Index was inversely associated with higher 10-year CVD risk (OR per 1/7 (95% CI): 0.47 (0.28, 0.80). Age and sex-adjusted determinants of healthy ageing were abnormal waist to hip ratio (p<0.001), increased coffee consumption (p=0.04), reduced basic metabolic rhythm (p<0.001), increased triglycerides (p=0.003), and C-reactive protein levels (p=0.02), as aggravating factors, while moderate alcohol consumption (p=0.002) was identified as a positive influential parameter. CONCLUSIONS Understanding healthy ageing, as a dominant factor of CVD development, provides a new direction for better prevention efforts focused on healthy ageing at both population and individual level.
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Affiliation(s)
- Natasa Kollia
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Demosthenes B Panagiotakos
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Christina Chrysohoou
- First Cardiology Clinic, School of Medicine, University of Athens, Athens, Greece
| | - Ekavi Georgousopoulou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Dimitrios Tousoulis
- First Cardiology Clinic, School of Medicine, University of Athens, Athens, Greece
| | | | | | - Christos Pitsavos
- First Cardiology Clinic, School of Medicine, University of Athens, Athens, Greece
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Coccarelli A, Hasan HM, Carson J, Parthimos D, Nithiarasu P. Influence of ageing on human body blood flow and heat transfer: A detailed computational modelling study. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2018; 34:e3120. [PMID: 29932495 PMCID: PMC6220937 DOI: 10.1002/cnm.3120] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/04/2018] [Accepted: 06/13/2018] [Indexed: 05/17/2023]
Abstract
Ageing plays a fundamental role in arterial blood transport and heat transfer within a human body. The aim of this work is to provide a comprehensive methodology, based on biomechanical considerations, for modelling arterial flow and energy exchange mechanisms in the body accounting for age-induced changes. The study outlines a framework for age-related modifications within several interlinked subsystems, which include arterial stiffening, heart contractility variations, tissue volume and property changes, and thermoregulatory system deterioration. Some of the proposed age-dependent governing equations are directly extrapolated from experimental data sets. The computational framework is demonstrated through numerical experiments, which show the impact of such age-related changes on arterial blood pressure, local temperature distribution, and global body thermal response. The proposed numerical experiments show that the age-related changes in arterial convection do not significantly affect the tissue temperature distribution. Results also highlight age-related effects on the sweating mechanism, which lead to a significant reduction in heat dissipation and a subsequent rise in skin and core temperatures.
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Affiliation(s)
- Alberto Coccarelli
- Biomedical Engineering Group, Zienkiewicz Centre for Computational Engineering, College of EngineeringSwansea UniversityUK
| | - Hayder M. Hasan
- Biomedical Engineering Group, Zienkiewicz Centre for Computational Engineering, College of EngineeringSwansea UniversityUK
| | - Jason Carson
- Biomedical Engineering Group, Zienkiewicz Centre for Computational Engineering, College of EngineeringSwansea UniversityUK
| | | | - Perumal Nithiarasu
- Biomedical Engineering Group, Zienkiewicz Centre for Computational Engineering, College of EngineeringSwansea UniversityUK
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Decreased Basal Metabolic Rate Can Be an Objective Marker for Sarcopenia and Frailty in Older Males. J Am Med Dir Assoc 2018; 20:58-63. [PMID: 30122323 DOI: 10.1016/j.jamda.2018.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/28/2018] [Accepted: 07/01/2018] [Indexed: 01/24/2023]
Abstract
OBJECTIVES The aim of this study is to demonstrate the ability of the basal metabolic rate (BMR) to detect frailty and sarcopenia in older males. SETTING AND PARTICIPANTS A total of 305 male patients undergoing comprehensive geriatric assessment were included in the study. MEASURES The frailty status was assessed with the Fried criteria. Sarcopenia was diagnosed according to the European Working Group on Sarcopenia in Older People criteria. BMR is calculated by bioimpedance analysis. Areas under the curves (AUCs) of receiver operating characteristic analyses were used to test the predictive accuracy of BMR in detecting sarcopenia. RESULTS The mean age was 74.52 ± 7.51 years. Among the patients in the sample, 95 (31.1%) had sarcopenia and 55 (18%) had frailty. Patients who had a BMR <1612 kcal/d had a higher frequency of frailty than those who had a BMR ≥1612 kcal/d (67.3 vs 32.7, P < .001). Results were similar for sarcopenia (77.9 vs 22.1, P < .001). When BMR was divided by body surface area (BSA), BMR/BSA with a cut-off of 874 kcal/m2 had a sensitivity of 80% and a specificity of 68%, and the AUC was 0.82 for BMR/BSA, in diagnosing sarcopenia (P < .01). The participants without sarcopenia had a higher BMR/BSA for the unadjusted (OR = 8.00, 95% CI 4.52-14.19, P < .001) and adjusted analyses (OR = 6.60, 95% CI 3.52-12.38, P < .001). CONCLUSIONS Older male patients with sarcopenia and frailty have a higher BMR reduction. Therefore, it should be kept in mind that patients with low BMR should alert us to screen sarcopenia and frailty. BMR/BSA may play a role in objective screening to detect sarcopenia in older males.
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Abstract
Chromatin is a mighty consumer of cellular energy generated by metabolism. Metabolic status is efficiently coordinated with transcription and translation, which also feed back to regulate metabolism. Conversely, suppression of energy utilization by chromatin processes may serve to preserve energy resources for cell survival. Most of the reactions involved in chromatin modification require metabolites as their cofactors or coenzymes. Therefore, the metabolic status of the cell can influence the spectra of posttranslational histone modifications and the structure, density and location of nucleosomes, impacting epigenetic processes. Thus, transcription, translation, and DNA/RNA biogenesis adapt to cellular metabolism. In addition to dysfunctions of metabolic enzymes, imbalances between metabolism and chromatin activities trigger metabolic disease and life span alteration. Here, we review the synthesis of the metabolites and the relationships between metabolism and chromatin function. Furthermore, we discuss how the chromatin response feeds back to metabolic regulation in biological processes.
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Affiliation(s)
- Tamaki Suganuma
- Stowers Institute for Medical Research, Kansas City, Missouri 64110, USA;,
| | - Jerry L. Workman
- Stowers Institute for Medical Research, Kansas City, Missouri 64110, USA;,
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Pavlidou E, Petridis D, Tolia M, Tsoukalas N, Poultsidi A, Fasoulas A, Kyrgias G, Giaginis C. Estimating the agreement between the metabolic rate calculated from prediction equations and from a portable indirect calorimetry device: an effort to develop a new equation for predicting resting metabolic rate. Nutr Metab (Lond) 2018; 15:41. [PMID: 29983723 PMCID: PMC6003108 DOI: 10.1186/s12986-018-0278-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 05/18/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Many studies have been performed over time in order to determine the reliability of metabolic rate prediction equations. PURPOSE To evaluate the agreement, in terms of bias, absolute bias and accuracy between metabolic rate prediction equations and measured metabolic rate using indirect calorimetry system (IC), investigating also the factors affecting this agreement. METHODS The anthropometric features of 383 Caucasian participants of all Body Mass Index (BMI) classes were recorded and Resting Metabolic Rate (RMR) was measured by using the IC Fitmate portable device. The resulting values were compared with the predictive values of Harris & Benedict, Schofield, Owen, FAO-WHO-UNU, Mifflin and Harrington equations. RESULTS A closer approximation in agreement was obtained using the Harrington equation (based on BMI, age and gender). The equations using variables, such as weight, height, age and gender demonstrated higher agreement than the equations using merely weight and gender. Higher educational level was associated with normal weight, while higher calorific ratio was found in the class of normal-weighted individuals. An inverse relationship between ΒΜΙ and RMR was also observed and a logarithmic equation for calculating RMR was created, which was differentiated in relation to BMI classes, using the weight and gender variables. CONCLUSION A better measurement agreement between RMR prediction equations and IC may be achieved due to BMI consideration. The present findings contributed to a better understanding of the measured parameters, confirming the inverse relationship between BMI and RMR. Age group and gender variables may also exert significant role on the bias response of some RMR equations.
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Affiliation(s)
- Eleni Pavlidou
- Department of Food Science and Nutrition, University of Aegean, Mitropoliti Ioakim 2, Myrina, Lemnos, 81440 Athens, Greece
| | - Dimitris Petridis
- Department of Food Technology, Technological Educational Institute, 57400 Thessaloniki, Greece
| | - Maria Tolia
- Department of Radiotherapy, School of Health Sciences, Faculty of Medicine, University of Thessaly, 41110 Biopolis, Larissa, Greece
| | - Nikolaos Tsoukalas
- Department of Oncology, Veterans Hospital (NIMTS), 10 Monis Petraki, 11521 Athens, Greece
| | - Antigoni Poultsidi
- Surgery Clinic, School of Health Sciences, Faculty of Medicine, University of Thessaly, 41110 Larissa, Greece
| | - Aristeidis Fasoulas
- Department of Food Science and Nutrition, University of Aegean, Mitropoliti Ioakim 2, Myrina, Lemnos, 81440 Athens, Greece
| | - George Kyrgias
- Department of Radiotherapy, School of Health Sciences, Faculty of Medicine, University of Thessaly, 41110 Biopolis, Larissa, Greece
| | - Constantinos Giaginis
- Department of Food Science and Nutrition, University of Aegean, Mitropoliti Ioakim 2, Myrina, Lemnos, 81440 Athens, Greece
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Redman LM, Smith SR, Burton JH, Martin CK, Il'yasova D, Ravussin E. Metabolic Slowing and Reduced Oxidative Damage with Sustained Caloric Restriction Support the Rate of Living and Oxidative Damage Theories of Aging. Cell Metab 2018; 27:805-815.e4. [PMID: 29576535 PMCID: PMC5886711 DOI: 10.1016/j.cmet.2018.02.019] [Citation(s) in RCA: 285] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 12/23/2017] [Accepted: 02/20/2018] [Indexed: 12/18/2022]
Abstract
Calorie restriction (CR) is a dietary intervention with potential benefits for healthspan improvement and lifespan extension. In 53 (34 CR and 19 control) non-obese adults, we tested the hypothesis that energy expenditure (EE) and its endocrine mediators are reduced with a CR diet over 2 years. Approximately 15% CR was achieved over 2 years, resulting in an average 8.7 kg weight loss, whereas controls gained 1.8 kg. In the CR group, EE measured over 24 hr or during sleep was approximately 80-120 kcal/day lower than expected on the basis of weight loss, indicating sustained metabolic adaptation over 2 years. This metabolic adaptation was accompanied by significantly reduced thyroid axis activity and reactive oxygen species (F2-isoprostane) production. Findings from this 2-year CR trial in healthy, non-obese humans provide new evidence of persistent metabolic slowing accompanied by reduced oxidative stress, which supports the rate of living and oxidative damage theories of mammalian aging.
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Affiliation(s)
- Leanne M Redman
- Division of Clinical Sciences Pennington, Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA.
| | - Steven R Smith
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital and Sanford-Burnham Medical Research Institute, Orlando, FL 32804, USA
| | - Jeffrey H Burton
- Division of Clinical Sciences Pennington, Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA
| | - Corby K Martin
- Division of Clinical Sciences Pennington, Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA
| | - Dora Il'yasova
- School of Public Health, Georgia State University, Atlanta, GA 30302, USA
| | - Eric Ravussin
- Division of Clinical Sciences Pennington, Biomedical Research Center, 6400 Perkins Road, Baton Rouge, LA 70808, USA
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Gresham G, Dy SM, Zipunnikov V, Browner IS, Studenski SA, Simonsick EM, Ferrucci L, Schrack JA. Fatigability and endurance performance in cancer survivors: Analyses from the Baltimore Longitudinal Study of Aging. Cancer 2018; 124:1279-1287. [PMID: 29419879 PMCID: PMC5892191 DOI: 10.1002/cncr.31238] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/03/2017] [Accepted: 10/26/2017] [Indexed: 01/17/2023]
Abstract
BACKGROUND Fatigue is prevalent and distressing among cancer survivors, but its subjective nature makes it difficult to identify. Fatigability, defined as task-specific fatigue, and endurance performance may be useful supplemental measures of functional status in cancer survivors. METHODS Fatigability, endurance performance, and cancer history were assessed every 2 years in Baltimore Longitudinal Study of Aging participants between 2007 and 2015. Fatigability was defined according to the Borg rating of perceived exertion scale after a 5-minute, slow treadmill walk; and endurance performance was calculated according to the ability and time to complete a fast-paced, 400-meter walk. The association between cancer history, fatigability, and endurance performance was evaluated using longitudinal analyses adjusted for age, sex, body mass index, and comorbidities. RESULTS Of 1665 participants, 334 (20%) reported a history of cancer. A combination of older age (>65 years) and a history of cancer was associated with 3.8 and 8.6 greater odds of high perceived fatigability and poor endurance, respectively (P < .01). Older adults with and without a history of cancer walked 42 and 23 seconds slower than younger adults without a history of cancer, respectively (P < .01). The median times to the development of high fatigability and poor endurance were shorter among those who had a history of cancer compared with those who had no history of cancer (P < .01). CONCLUSIONS The current findings suggest that a history of cancer is associated with fatigability and poor endurance and that this effect is significantly greater in older adults. Evaluating the effects of cancer and age on fatigability may illuminate potential pathways and targets for future interventions. Cancer 2018;124:1279-87. © 2018 American Cancer Society.
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Affiliation(s)
- Gillian Gresham
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Sydney M. Dy
- Department of Health Policy and Management and Primary Care for Cancer Survivors Program, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Vadim Zipunnikov
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Ilene S. Browner
- Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | | | | | - Luigi Ferrucci
- Intramural Research Program, National Institute on Aging, Baltimore, Maryland
| | - Jennifer A. Schrack
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
- Intramural Research Program, National Institute on Aging, Baltimore, Maryland
- Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland
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Keevil VL, Luben R, Hayat S, Sayer AA, Wareham NJ, Khaw KT. Physical capability predicts mortality in late mid-life as well as in old age: Findings from a large British cohort study. Arch Gerontol Geriatr 2018; 74:77-82. [PMID: 29040888 PMCID: PMC5701965 DOI: 10.1016/j.archger.2017.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 09/27/2017] [Accepted: 10/02/2017] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Low physical capability predicts mortality, perhaps by association with co-morbidity. However, few studies include participants <70years old with lower co-morbidity burdens compared to older adults. We examined relationships between usual walking speed (UWS), timed chair stands speed, grip strength, standing balance and all-cause mortality in 8477 participants aged 48-92years enrolled in the European Prospective Investigation of Cancer-Norfolk study. METHODS Participants (55.1% female) were followed up for 6.0 years (inter-quartile range 4.6, 7.5). Associations were examined using Cox proportional hazards regression by age-group (<70years versus ≥70years) and then in the whole cohort adjusted for age, sex, anthropometry, history of diabetes/stroke/myocardial infarction/cancer, smoking, alcohol intake, socioeconomic status, television viewing time and physical activity. RESULTS Age and sex adjusted associations were similar in younger and older participants (Pinteraction all >0.05) and those with lower physical capability had higher mortality risk. For example, in those <70years old hazard ratios (95% confidence interval) for mortality in the third, second and lowest sex-specific quartiles of UWS compared to the highest were 1.21 (0.75, 1.96), 2.11 (1.35, 3.28) and 2.91 (1.84, 4.62) and in participants ≥70years old were 1.19 (0.73, 1.95), 2.09 (1.35, 3.24) and 2.64 (1.73, 4.02) respectively. In the whole cohort, strong associations between all physical capability tests and mortality persisted after multivariable adjustment and after excluding participants with co-morbidity. CONCLUSIONS Physical capability was independently predictive of future mortality risk with similar associations in late mid-life, when co-morbidity burden is lower, as at older age.
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Affiliation(s)
- Victoria L Keevil
- Department of Public Health and Primary Care, University of Cambridge, Strangeways Research Laboratory, Wort's Causeway, Cambridge, CB1 8RN, UK; Medicine for Older People, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, CB2 0QQ, UK.
| | - Robert Luben
- Department of Public Health and Primary Care, University of Cambridge, Strangeways Research Laboratory, Wort's Causeway, Cambridge, CB1 8RN, UK
| | - Shabina Hayat
- Department of Public Health and Primary Care, University of Cambridge, Strangeways Research Laboratory, Wort's Causeway, Cambridge, CB1 8RN, UK
| | - Avan A Sayer
- NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle upon Tyne Hospitals NHS Foundation Trust, UK; AGE Research Group, Institute of Neuroscience and Institute for Ageing, Newcastle University, UK
| | - Nicholas J Wareham
- MRC Epidemiology Unit, University of Cambridge, Institute of Metabolic Science, Addenbrooke's Biomedical Campus, Cambridge, CB2 0QQ, UK
| | - Kay-Tee Khaw
- Department of Public Health and Primary Care, University of Cambridge, Strangeways Research Laboratory, Wort's Causeway, Cambridge, CB1 8RN, UK
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Pomatto LCD, Davies KJA. The role of declining adaptive homeostasis in ageing. J Physiol 2017; 595:7275-7309. [PMID: 29028112 PMCID: PMC5730851 DOI: 10.1113/jp275072] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 09/01/2017] [Indexed: 12/12/2022] Open
Abstract
Adaptive homeostasis is "the transient expansion or contraction of the homeostatic range for any given physiological parameter in response to exposure to sub-toxic, non-damaging, signalling molecules or events, or the removal or cessation of such molecules or events" (Davies, 2016). Adaptive homeostasis enables biological systems to make continuous short-term adjustments for optimal functioning despite ever-changing internal and external environments. Initiation of adaptation in response to an appropriate signal allows organisms to successfully cope with much greater, normally toxic, stresses. These short-term responses are initiated following effective signals, including hypoxia, cold shock, heat shock, oxidative stress, exercise-induced adaptation, caloric restriction, osmotic stress, mechanical stress, immune response, and even emotional stress. There is now substantial literature detailing a decline in adaptive homeostasis that, unfortunately, appears to manifest with ageing, especially in the last third of the lifespan. In this review, we present the hypothesis that one hallmark of the ageing process is a significant decline in adaptive homeostasis capacity. We discuss the mechanistic importance of diminished capacity for short-term (reversible) adaptive responses (both biochemical and signal transduction/gene expression-based) to changing internal and external conditions, for short-term survival and for lifespan and healthspan. Studies of cultured mammalian cells, worms, flies, rodents, simians, apes, and even humans, all indicate declining adaptive homeostasis as a potential contributor to age-dependent senescence, increased risk of disease, and even mortality. Emerging work points to Nrf2-Keap1 signal transduction pathway inhibitors, including Bach1 and c-Myc, both of whose tissue concentrations increase with age, as possible major causes for age-dependent loss of adaptive homeostasis.
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Affiliation(s)
- Laura C. D. Pomatto
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology CenterUniversity of Southern CaliforniaLos AngelesCA 90089USA
| | - Kelvin J. A. Davies
- Leonard Davis School of Gerontology of the Ethel Percy Andrus Gerontology CenterUniversity of Southern CaliforniaLos AngelesCA 90089USA
- Molecular and Computational Biology Program, Department of Biological Sciences of the Dornsife College of LettersArts & Sciences: the University of Southern CaliforniaLos AngelesCA 90089‐0191USA
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Bentes CM, Costa PB, Resende M, Miranda HL, Silva CMV, Netto CC, Marinheiro LPF. Association between muscle function and body composition, vitamin D status, and blood glucose in postmenopausal women with type 2 diabetes. Diabetes Metab Syndr 2017; 11 Suppl 2:S679-S684. [PMID: 28483427 DOI: 10.1016/j.dsx.2017.04.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 04/27/2017] [Indexed: 12/25/2022]
Abstract
AIMS The aim of this study was to examine the association between muscle function, and body composition, vitamin D status, and blood glucose in post-menopausal women with type 2 diabetes (T2D). METHODS Forty post-menopausal women (62.48±7.67years; 154.6±5.11cm; 73.93±15.43kg; 31.13±5.82 BMI kg/m2) with a diagnosis of T2D participated in this cross-sectional study. The patients performed fasting blood sample exams, anthropometrics assessments, body composition, and clinical exams. Subjects performed physical tests including handgrip, timed up and go, 30-s chair stand, arm curl, and sit-to-stand. The correlation between the parameters of physical tests, age, body composition, vitamin D, and blood glucose was assessed by Pearson correlation. RESULTS The results showed there were significant correlations between blood glucose and relative strength (R=-0.398, p=0.011), arm curl test (R=-0.367 and p=0.020), and hip flexion (R=0.427, p=0.006). CONCLUSIONS These findings are important because they highlight the importance of resistance training in individuals with T2D and the relationship with a fat increase during a dicrease process. Furthermore, the concentration of serum glucose might be associated with decreases in muscle strength and muscle function in older adults. Thus, T2D patients should be involved with strength training to improve the strength and the muscle hypertrophy.
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Affiliation(s)
- Claudio M Bentes
- Oswaldo Cruz Fundation, Fernandes Figueira Institute, Gynecologic and Obstetrics Department, Rio de Janeiro, RJ, Brazil; School of Physical Education and Sports, Federal University of Rio de Janeiro, RJ, Brazil
| | - Pablo B Costa
- Department of Kinesiology, California State University, Fullerton, USA.
| | - Monique Resende
- Oswaldo Cruz Fundation, Fernandes Figueira Institute, Gynecologic and Obstetrics Department, Rio de Janeiro, RJ, Brazil
| | - Humberto L Miranda
- School of Physical Education and Sports, Federal University of Rio de Janeiro, RJ, Brazil
| | - Carolina M V Silva
- Oswaldo Cruz Fundation, Fernandes Figueira Institute, Gynecologic and Obstetrics Department, Rio de Janeiro, RJ, Brazil
| | - Claudia C Netto
- Department of Biochemistry, Federal University of the State of Rio de Janeiro (UNIRIO), Rio de Janeiro, RJ, Brazil
| | - Lizanka P F Marinheiro
- Oswaldo Cruz Fundation, Fernandes Figueira Institute, Gynecologic and Obstetrics Department, Rio de Janeiro, RJ, Brazil
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