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Chiesa ST, Norris T, Garfield V, Richards M, Hughes AD. Early-life cumulative exposure to excess bodyweight and midlife cognitive function: longitudinal analysis in three British birth cohorts. THE LANCET. HEALTHY LONGEVITY 2024; 5:e204-e213. [PMID: 38432248 DOI: 10.1016/s2666-7568(24)00005-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/03/2024] [Accepted: 01/09/2024] [Indexed: 03/05/2024] Open
Abstract
BACKGROUND Excess bodyweight (BMI >25 kg/m2) in midlife (age 40-65 years) has been linked to future cognitive decline and an increased risk of dementia. Whether chronic exposure to excess bodyweight in the early decades of life (<40 years) is associated with compromised cognitive function by midlife, however, remains unclear. This study therefore aimed to test potential bidirectional direct and indirect pathways linking cumulative exposure to excess bodyweight and cognitive function in the early decades of life. METHODS In this longitudinal analysis, harmonised measures of BMI and cognitive function were available in 19 742 participants aged 47-53 years recruited to the 1946 National Survey of Health and Development (n=2131), the 1958 National Child Development Study (n=9385), and the 1970 British Cohort Study (n=8226). Individual BMI trajectories spanning three decades from age 10-40 years were created for each participant and excess bodyweight duration, BMI change between ages, and cumulative excess bodyweight exposure were calculated. Harmonised measures of verbal and non-verbal ability, mathematical ability, and reading ability were used to create a latent factor for childhood cognitive function, and immediate and delayed recall, animal naming, and letter-search speed tests were used for midlife cognitive function. Multivariable linear regression and structural equation models (SEM) were used to test for potential bidirectional relationships between cognition and excess bodyweight in both individual cohorts and pooled datasets while accounting for other potential early-life confounders. FINDINGS Increases in BMI during adolescence and greater cumulative exposure to excess bodyweight across early life were associated with lower midlife cognitive function in all cohorts (eg, pooled difference in cognitive function per 10 years excess bodyweight duration -0·10; 95% CI -0·12 to -0·08; p<0·001). Further adjustment for childhood cognitive function attenuated many of these associations towards the null (eg, pooled difference in cognitive function per 10 years excess bodyweight duration -0·04; 95% CI -0·06 to -0·02; p=0·001), however, with any remaining associations then fully attenuating once further adjusted for other early-life factors (eg, pooled difference in cognitive function per 10 years excess bodyweight duration 0, -0·03 to 0·01; p=0·38). In the reverse direction, low childhood cognition was associated with greater cumulative exposure to excess bodyweight over the next four decades, although much of this relationship was found to probably be explained via other potentially modifiable upstream early-life factors such as childhood disadvantage. SEM in all cohorts suggested the presence of modest direct and indirect pathways connecting earlier cognitive function to later excess bodyweight, but scarce evidence for an effect of early-life excess bodyweight on cognitive function by midlife. INTERPRETATION The association between cumulative exposure to excess bodyweight in early life and lower cognitive function in midlife is probably confounded by a persistently lower cognitive function from childhood. Initiatives to improve early-life factors such as childhood disadvantage and education, however, might exert dual but independent benefits on both of these factors before old age. FUNDING Alzheimer's Research UK, Diabetes Research and Wellness Foundation, Diabetes UK, British Heart Foundation, and Medical Research Council.
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Affiliation(s)
- Scott T Chiesa
- Medical Research Council Unit for Lifelong Health and Ageing at UCL, Institute of Cardiovascular Science, UCL, London, UK.
| | - Tom Norris
- Division of Surgery and Interventional Science, Institute of Sport, Exercise and Health, UCL, London, UK
| | - Victoria Garfield
- Medical Research Council Unit for Lifelong Health and Ageing at UCL, Institute of Cardiovascular Science, UCL, London, UK
| | - Marcus Richards
- Medical Research Council Unit for Lifelong Health and Ageing at UCL, Institute of Cardiovascular Science, UCL, London, UK
| | - Alun D Hughes
- Medical Research Council Unit for Lifelong Health and Ageing at UCL, Institute of Cardiovascular Science, UCL, London, UK
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Machado-Fragua MD, Sabia S, Fayosse A, Hassen CB, van der Heide F, Kivimaki M, Singh-Manoux A. Is metabolic-healthy obesity associated with risk of dementia? An age-stratified analysis of the Whitehall II cohort study. BMC Med 2023; 21:436. [PMID: 37957712 PMCID: PMC10644649 DOI: 10.1186/s12916-023-03155-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 11/06/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Metabolically healthy obesity is hypothesized to be a benign condition but whether this is the case for dementia remains debated. We examined the role of age at assessment of metabolic-obesity phenotypes in associations with incident dementia. METHODS Obesity (body mass index ≥ 30 kg/m2) and poor metabolic health (≥ 2 of elevated serum triglycerides, low HDL-C, elevated blood pressure, and elevated serum fasting glucose) were used to define four metabolic-obesity phenotypes (metabolically healthy (MHNO) and unhealthy non-obesity (MUNO), metabolically healthy (MHO) and unhealthy obesity (MUO)) at < 60, 60 to < 70, and ≥ 70 years using 6 waves of data from the Whitehall II study and their associations with incident dementia was examined using Cox regression. RESULTS Analyses with exposures measured < 60, 60 to < 70, and ≥ 70 years involved 410 (5.8%), 379 (5.6%), and 262 (7.4%) incident dementia cases over a median follow-up of 20.8, 10.3, and 4.2 years respectively. In analyses of individual components, obesity before 60 years (HR 1.41, 95% CI: [1.08, 1.85]) but not at older ages was associated with dementia; unhealthy metabolic status when present < 60 years (HR 1.33, 95% CI: [1.08, 1.62]) and 60 to < 70 years (HR 1.32, 95% CI: [1.07, 1.62]) was associated with dementia. Compared to the metabolically healthy non-obesity group, the risk of dementia was higher in those with metabolically healthy obesity before 60 years (1.69; 95% CI: [1.16, 2.45]); this was not the case when metabolic-obesity phenotype was present at 60 to < 70 years or ≥ 70 years. Analyses at older ages were on smaller numbers due to death and drop-out but inverse probability weighting to account for missing data yielded similar results. CONCLUSIONS Individuals with metabolically healthy obesity before age 60 had a higher risk of incident dementia over a 27-year follow-up; the excess risk dissipates when metabolic health and obesity are measured after 70 years.
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Affiliation(s)
- Marcos D Machado-Fragua
- Université Paris Cité, Inserm U1153, Epidemiology of Ageing and Neurodegenerative Diseases, Paris, France.
| | - Séverine Sabia
- Université Paris Cité, Inserm U1153, Epidemiology of Ageing and Neurodegenerative Diseases, Paris, France
- Faculty of Brain Sciences, University College London, London, UK
| | - Aurore Fayosse
- Université Paris Cité, Inserm U1153, Epidemiology of Ageing and Neurodegenerative Diseases, Paris, France
| | - Céline Ben Hassen
- Université Paris Cité, Inserm U1153, Epidemiology of Ageing and Neurodegenerative Diseases, Paris, France
| | - Frank van der Heide
- Université Paris Cité, Inserm U1153, Epidemiology of Ageing and Neurodegenerative Diseases, Paris, France
| | - Mika Kivimaki
- Faculty of Brain Sciences, University College London, London, UK
| | - Archana Singh-Manoux
- Université Paris Cité, Inserm U1153, Epidemiology of Ageing and Neurodegenerative Diseases, Paris, France
- Faculty of Brain Sciences, University College London, London, UK
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de Vargas LDS, Jantsch J, Fontoura JR, Dorneles GP, Peres A, Guedes RP. Effects of Zinc Supplementation on Inflammatory and Cognitive Parameters in Middle-Aged Women with Overweight or Obesity. Nutrients 2023; 15:4396. [PMID: 37892471 PMCID: PMC10609714 DOI: 10.3390/nu15204396] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/03/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Obesity has been linked to cognitive decline and adverse effects on brain health. Zinc (Zn) is a mineral with important metabolic functions that can modulate obesity-related neurological impairment. Thus, the present study aimed to evaluate the effects of 12 weeks of Zn supplementation on the inflammatory profile, cognitive function, and mood of overweight or obese women through a double-blind, placebo-controlled study. The study included 42 women aged between 40 and 60, randomly divided into two groups: Zn supplementation (30 mg/day) or placebo for 12 weeks. Data regarding sociodemographic, anthropometric, dietary, and physical activity were collected. Mini-mental state examination (MMSE), verbal fluency test, clock drawing test, and Stroop test were performed. Anxiety and depression symptoms were assessed using the Beck anxiety inventory and the BDI-II, respectively. Saliva samples were collected to evaluate IL-1β, IL-6, TNF-α, insulin, nitrite, and Zn levels. Of the 42 participants (mean age 49.58 ± 6.46 years), 32 were included in the study analyses. Changes in body weight and macronutrient consumption were not different between placebo and Zn supplementation groups. Cognitive scores on the MMSE and Stroop tests were higher in the Zn supplementation group than in the placebo group. Salivary levels of IL-1b and Zn increased in the Zn group compared to placebo. There was no significant change in the adjusted means of the BDI-II and BECK scores between the zinc vs. placebo groups. Twelve weeks of Zn supplementation was able to partially improve the cognitive scores assessed in overweight or obese women, regardless of weight loss. These findings suggest that Zn supplementation can be considered an adjunct strategy to enhance cognitive health in overweight or obese women.
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Affiliation(s)
- Liziane da Silva de Vargas
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, Porto Alegre 90050-170, Brazil; (L.d.S.d.V.); (J.J.); (A.P.)
| | - Jeferson Jantsch
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, Porto Alegre 90050-170, Brazil; (L.d.S.d.V.); (J.J.); (A.P.)
| | - Juliana Ribeiro Fontoura
- Graduação em Nutrição, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, Porto Alegre 90050-170, Brazil
| | - Gilson Pires Dorneles
- Hospital Moinhos de Vento, Rua Ramiro Barcelos, 910, Porto Alegre 90035-000, Brazil;
| | - Alessandra Peres
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, Porto Alegre 90050-170, Brazil; (L.d.S.d.V.); (J.J.); (A.P.)
- Graduação em Nutrição, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, Porto Alegre 90050-170, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, Porto Alegre 90050-170, Brazil
| | - Renata Padilha Guedes
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, Porto Alegre 90050-170, Brazil; (L.d.S.d.V.); (J.J.); (A.P.)
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Rua Sarmento Leite, 245, Porto Alegre 90050-170, Brazil
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Gong Y, Luo H, Li Z, Feng Y, Liu Z, Chang J. Metabolic Profile of Alzheimer's Disease: Is 10-Hydroxy-2-decenoic Acid a Pertinent Metabolic Adjuster? Metabolites 2023; 13:954. [PMID: 37623897 PMCID: PMC10456792 DOI: 10.3390/metabo13080954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/12/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023] Open
Abstract
Alzheimer's disease (AD) represents a significant public health concern in modern society. Metabolic syndrome (MetS), which includes diabetes mellitus (DM) and obesity, represents a modifiable risk factor for AD. MetS and AD are interconnected through various mechanisms, such as mitochondrial dysfunction, oxidative stress, insulin resistance (IR), vascular impairment, inflammation, and endoplasmic reticulum (ER) stress. Therefore, it is necessary to seek a multi-targeted and safer approach to intervention. Thus, 10-hydroxy-2-decenoic acid (10-HDA), a unique hydroxy fatty acid in royal jelly, has shown promising anti-neuroinflammatory, blood-brain barrier (BBB)-preserving, and neurogenesis-promoting properties. In this paper, we provide a summary of the relationship between MetS and AD, together with an introduction to 10-HDA as a potential intervention nutrient. In addition, molecular docking is performed to explore the metabolic tuning properties of 10-HDA with associated macromolecules such as GLP-1R, PPARs, GSK-3, and TREM2. In conclusion, there is a close relationship between AD and MetS, and 10-HDA shows potential as a beneficial nutritional intervention for both AD and MetS.
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Affiliation(s)
| | | | | | | | | | - Jie Chang
- Department of Occupational and Environmental Health, School of Public Health, Soochow University, 199 Ren’ai Road, Suzhou 215123, China; (Y.G.)
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Rodriguez-Espinosa N, Moro Miguel A, Rodriguez-Perez MDC, Almeida-Gonzalez D, Cabrera de Leon A. Adherence to the Mediterranean diet and waist-to-hip ratio in middle-aged postmenopausal women are the main factors associated with semantic verbal fluency 12 years later. Front Nutr 2023; 10:1106629. [PMID: 37255942 PMCID: PMC10226530 DOI: 10.3389/fnut.2023.1106629] [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: 12/05/2022] [Accepted: 02/21/2023] [Indexed: 06/01/2023] Open
Abstract
Few studies have analized the effect of vascular risk factors and lifestyle habits affecting the middle age of postmenopausal women on later cognitive performance in old age. We have carried out an observational study to identify those factors and whether they differ from those acting in men. Postmenopausal women and males, both aged 40-60 years old at recruitment, from a community dwelling cohort were included. Data for this study were collected from the first visit at recruitment (2001 to 2005). Participants were interviewed with a questionnaire on their health-related antecedents and underwent a physical exam. The cohort was contacted again for a new presential visit between 2014 and 2015. A semantic verbal fluency test was included in this new visit protocol as a brief measure of cognition. Besides educational attainment, Mediterranean diet adherence 20th percentile (OR = 1.93; 95%CI = 1.07-3.47) and waist to hip ratio 80th percentile (OR = 1.81; 95%CI = 1.10-2,98) were the main factors associated to low semantic fluency performance in postmenopausal women, while declared diabetes mellitus (OR = 2.24; 95%CI = 1.16-4,33), HOMA 2 insulin resistance index (OR = 1.77; 95%CI =1.04-3,02), light physical activity in leisure time (OR = 0.41; 95%CI = 0.19-0,93) and recommended moderate to vigorous physical activity (OR = 2.09; 95%CI = 1.23-3.56) did in men. Factors in middle age that explain semantic verbal fluency in old age are different between postmenopausal women and men. Menopause related fat redistribution may be a precondition for other vascular risk factors. The effect of Mediterranean diet on cognition deserves new specific studies centered on postmenopausal women as group.
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Affiliation(s)
- Norberto Rodriguez-Espinosa
- Unidad de Neurología de la Memoria, Servicio de Neurología, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Adoración Moro Miguel
- Unidad de Neurología de la Memoria, Servicio de Neurología, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Maria del Cristo Rodriguez-Perez
- Unidad de Investigación de Atención Primaria, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Delia Almeida-Gonzalez
- Sección de Inmunología, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Antonio Cabrera de Leon
- Unidad de Investigación de Atención Primaria, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
- Area de Medicina Preventiva y Salud Pública, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
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Müller L, Power Guerra N, Schildt A, Lindner T, Stenzel J, Behrangi N, Bergner C, Alberts T, Bühler D, Kurth J, Krause BJ, Janowitz D, Teipel S, Vollmar B, Kuhla A. [ 18F]GE-180-PET and Post Mortem Marker Characteristics of Long-Term High-Fat-Diet-Induced Chronic Neuroinflammation in Mice. Biomolecules 2023; 13:biom13050769. [PMID: 37238638 DOI: 10.3390/biom13050769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/14/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Obesity is characterized by immoderate fat accumulation leading to an elevated risk of neurodegenerative disorders, along with a host of metabolic disturbances. Chronic neuroinflammation is a main factor linking obesity and the propensity for neurodegenerative disorders. To determine the cerebrometabolic effects of diet-induced obesity (DIO) in female mice fed a long-term (24 weeks) high-fat diet (HFD, 60% fat) compared to a group on a control diet (CD, 20% fat), we used in vivo PET imaging with the radiotracer [18F]FDG as a marker for brain glucose metabolism. In addition, we determined the effects of DIO on cerebral neuroinflammation using translocator protein 18 kDa (TSPO)-sensitive PET imaging with [18F]GE-180. Finally, we performed complementary post mortem histological and biochemical analyses of TSPO and further microglial (Iba1, TMEM119) and astroglial (GFAP) markers as well as cerebral expression analyses of cytokines (e.g., Interleukin (IL)-1β). We showed the development of a peripheral DIO phenotype, characterized by increased body weight, visceral fat, free triglycerides and leptin in plasma, as well as increased fasted blood glucose levels. Furthermore, we found obesity-associated hypermetabolic changes in brain glucose metabolism in the HFD group. Our main findings with respect to neuroinflammation were that neither [18F]GE-180 PET nor histological analyses of brain samples seem fit to detect the predicted cerebral inflammation response, despite clear evidence of perturbed brain metabolism along with elevated IL-1β expression. These results could be interpreted as a metabolically activated state in brain-resident immune cells due to a long-term HFD.
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Affiliation(s)
- Luisa Müller
- Rudolf-Zenker-Institute for Experimental Surgery, Rostock University Medical Centre, 18057 Rostock, Germany
- Department of Psychosomatic Medicine and Psychotherapy, Rostock University Medical Centre, 18147 Rostock, Germany
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), Rostock University Medical Centre, 18147 Rostock, Germany
| | - Nicole Power Guerra
- Rudolf-Zenker-Institute for Experimental Surgery, Rostock University Medical Centre, 18057 Rostock, Germany
- Institute of Anatomy, Rostock University Medical Centre, 18057 Rostock, Germany
- Smell & Taste Clinic, Department of Otorhinolaryngology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, 01034 Dresden, Germany
| | - Anna Schildt
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Tobias Lindner
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Jan Stenzel
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Newshan Behrangi
- Institute of Anatomy and Cell Biology, Medical University of Bonn, 53115 Bonn, Germany
| | - Carina Bergner
- Department of Clinic and Polyclinic for Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Teresa Alberts
- Institute of Anatomy and Cell Biology, Medical University of Bonn, 53115 Bonn, Germany
| | - Daniel Bühler
- Rudolf-Zenker-Institute for Experimental Surgery, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Jens Kurth
- Department of Clinic and Polyclinic for Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Bernd Joachim Krause
- Department of Clinic and Polyclinic for Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Deborah Janowitz
- Department of Psychiatry, University of Greifswald, 17475 Greifswald, Germany
| | - Stefan Teipel
- Department of Psychosomatic Medicine and Psychotherapy, Rostock University Medical Centre, 18147 Rostock, Germany
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), Rostock University Medical Centre, 18147 Rostock, Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) Rostock/Greifswald, 18147 Rostock, Germany
| | - Brigitte Vollmar
- Rudolf-Zenker-Institute for Experimental Surgery, Rostock University Medical Centre, 18057 Rostock, Germany
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), Rostock University Medical Centre, 18147 Rostock, Germany
| | - Angela Kuhla
- Rudolf-Zenker-Institute for Experimental Surgery, Rostock University Medical Centre, 18057 Rostock, Germany
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), Rostock University Medical Centre, 18147 Rostock, Germany
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Vints WA, Kušleikienė S, Sheoran S, Valatkevičienė K, Gleiznienė R, Himmelreich U, Pääsuke M, Česnaitienė VJ, Levin O, Verbunt J, Masiulis N. Body fat and components of sarcopenia relate to inflammation, brain volume and neurometabolism in older adults. Neurobiol Aging 2023; 127:1-11. [PMID: 37004309 DOI: 10.1016/j.neurobiolaging.2023.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/27/2022] [Accepted: 02/24/2023] [Indexed: 03/06/2023]
Abstract
Obesity and sarcopenia are associated with cognitive impairments at older age. Current research suggests that blood biomarkers may mediate this body-brain crosstalk, altering neurometabolism and brain structure eventually resulting in cognitive performance changes. Seventy-four older adults (60-85 years old) underwent bio-impedance body composition analysis, handgrip strength measurements, 8-Foot Up-and-Go (8UG) test, Montreal Cognitive Assessment (MoCA), blood analysis of interleukin-6 (IL-6), kynurenine, and insulin-like growth factor-1 (IGF-1), as well as brain magnetic resonance imaging (MRI) and proton magnetic resonance spectroscopy (1H-MRS), estimating neurodegeneration and neuroinflammation. Normal fat% or overweight was associated with larger total gray matter volume compared to underweight or obesity in older adults and obesity was associated with higher N-acetylaspartate/Creatine levels in the sensorimotor and dorsolateral prefrontal cortex. Muscle strength, not muscle mass/physical performance, corresponded to lower kynurenine and higher N-acetylaspartate/Creatine levels in the dorsal posterior cingulate and dorsolateral prefrontal cortex. The inflammatory and neurotrophic blood biomarkers did not significantly mediate these body-brain associations. This study used a multimodal approach to comprehensively assess the proposed mechanism of body-brain crosstalk.
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Nascimento MDM, Kliegel M, Silva PST, Rios PMB, Nascimento LDS, Silva CN, Ihle A. The Association of Obesity and Overweight with Executive Functions in Community-Dwelling Older Women. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2440. [PMID: 36767806 PMCID: PMC9915331 DOI: 10.3390/ijerph20032440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/19/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Among the risk factors reported for cognitive decline, the literature highlights changes in body composition. Thus, the aim of the present study was to examine the relationship between obesity/overweight and executive functions in cognitively normal older adult women. This cross-sectional study included 224 individuals (60-80 years), stratified into normal weight (n = 45), overweight (n = 98), and obesity (n = 81). As outcomes, body mass index (BMI), waist circumference (WC), and Trail Making Test Parts A and B were assessed. We found positive correlations of BMI and WC with completion times of TMT-A and TMT-B, and a negative correlation of BMI and WC with education. ANCOVA showed an association between higher BMI and slower completion time of TMT-A, TMT-B, and ΔTMT (B-A). Impairment of executive functions of cognitively normal older women may be positively associated with obesity and negatively associated with years of education. The findings may contribute to designing strategies that make it possible to prevent cognitive decline in women during aging.
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Affiliation(s)
- Marcelo de Maio Nascimento
- Department of Physical Education, Federal University of Vale do São Francisco, Petrolina 56304-917, Brazil
| | - Matthias Kliegel
- Department of Psychology, University of Geneva, 1205 Geneva, Switzerland
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1205 Geneva, Switzerland
- Swiss National Centre of Competence in Research LIVES—Overcoming Vulnerability: Life Course Perspectives, 1015 Lausanne, Switzerland
| | - Paloma Sthefane Teles Silva
- Multiprofessional Residence, Hospital das Clínicas of the Federal University of Minas Gerais, Belo Horizonte 30130-100, Brazil
| | | | - Lara dos Santos Nascimento
- Department of Physical Education, Federal University of Vale do São Francisco, Petrolina 56304-917, Brazil
| | | | - Andreas Ihle
- Department of Psychology, University of Geneva, 1205 Geneva, Switzerland
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1205 Geneva, Switzerland
- Swiss National Centre of Competence in Research LIVES—Overcoming Vulnerability: Life Course Perspectives, 1015 Lausanne, Switzerland
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A new cognitive clock matching phenotypic and epigenetic ages. Transl Psychiatry 2022; 12:364. [PMID: 36064845 PMCID: PMC9444998 DOI: 10.1038/s41398-022-02123-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 11/30/2022] Open
Abstract
Cognitive abilities decline with age, constituting a major manifestation of aging. The quantitative biomarkers of this process, as well as the correspondence to different biological clocks, remain largely an open problem. In this paper we employ the following cognitive tests: 1. differentiation of shades (campimetry); 2. evaluation of the arithmetic correctness and 3. detection of reversed letters and identify the most significant age-related cognitive indices. Based on their subsets we construct a machine learning-based Cognitive Clock that predicts chronological age with a mean absolute error of 8.62 years. Remarkably, epigenetic and phenotypic ages are predicted by Cognitive Clock with an even better accuracy. We also demonstrate the presence of correlations between cognitive, phenotypic and epigenetic age accelerations that suggests a deep connection between cognitive performance and aging status of an individual.
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Cilhoroz BT, DeBlois JP, Lefferts WK, Keller AP, Pagan Lassalle P, Meyer ML, Stoner L, Heffernan KS. Exploration of cerebral hemodynamic pathways through which large artery function affects neurovascular coupling in young women. Front Cardiovasc Med 2022; 9:914439. [PMID: 36035945 PMCID: PMC9411931 DOI: 10.3389/fcvm.2022.914439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundThe interactions between large artery function and neurovascular coupling (NVC) are emerging as important contributors to cognitive health. Women are disproportionally affected by Alzheimer's disease and related dementia later in life. Understanding large artery correlates of NVC in young women may help with preservation of cognitive health with advancing age.PurposeTo explore the association between large artery function, NVC and cognitive performance in young women.MethodsVascular measurements were made in 61 women (21 ± 4 yrs) at rest and during a cognitive challenge (Stroop task). Transcranial Doppler was used to measure left middle cerebral artery (MCA) maximum velocity (Vmax), mean velocity (Vmean), and pulsatility index (PI). NVC was determined as MCA blood velocity reactivity to the Stroop task. Large artery function was determined using carotid-femoral pulse wave velocity (cfPWV) as a proxy measure of aortic stiffness and carotid ultrasound-derived measures of compliance and reactivity (diameter change to the Stroop task). Cognitive function was assessed separately using a computerized neurocognitive battery that included appraisal of response speed, executive function, information processing efficiency, memory, attention/concentration, and impulsivity.ResultsMCA Vmax reactivity was positively associated with executive function (β = 0.26, 95% CI 0.01–0.10); MCA Vmean reactivity was negatively associated with response speed (β = −0.33, 95% CI −0.19 to −0.02) and positively with memory score (β = 0.28, 95% CI 0.01–0.19). MCA PI reactivity was negatively associated with attention performance (β = −0.29, 95% CI −14.9 to −1.0). Path analyses identified significant paths (p < 0.05) between carotid compliance and carotid diameter reactivity to select domains of cognitive function through MCA reactivity.ConclusionsNVC was associated with cognitive function in young women. Carotid artery function assessed as carotid compliance and carotid reactivity may contribute to optimal NVC in young women through increased blood flow delivery and reduced blood flow pulsatility.
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Affiliation(s)
- Burak T. Cilhoroz
- Department of Exercise Science, Syracuse University, Syracuse, NY, United States
| | - Jacob P. DeBlois
- Department of Exercise Science, Syracuse University, Syracuse, NY, United States
| | - Wesley K. Lefferts
- Department of Kinesiology, Iowa State University, Ames, IA, United States
| | - Allison P. Keller
- Department of Exercise Science, Syracuse University, Syracuse, NY, United States
| | - Patricia Pagan Lassalle
- Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC, United States
| | - Michelle L. Meyer
- Department of Epidemiology, Gilling's School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Department of Emergency Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Lee Stoner
- Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC, United States
- Department of Epidemiology, Gilling's School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Kevin S. Heffernan
- Department of Exercise Science, Syracuse University, Syracuse, NY, United States
- *Correspondence: Kevin S. Heffernan
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11
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Zhang Y, Huang B, Yang W, Zhong S, Lai S, Zhao H, He J, Cai S, Lv S, Wang C, Jia Y. Correlations Between Endocrine Hormones and Cognitive Function in Patients with Obesity: a Cross-sectional Study. Obes Surg 2022; 32:2299-2308. [PMID: 35486288 DOI: 10.1007/s11695-022-06076-y] [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: 10/26/2021] [Revised: 04/15/2022] [Accepted: 04/20/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Obesity not only affects physical and mental conditions, but also influences cognitive function. Endocrine hormones may influence the risk of obesity and severe obesity. Our study investigated the influences of changes in levels of endocrine hormones on cognitive function in patients with obesity and severe obesity. METHODS We used the MATRICS Consensus Cognitive Battery (MCCB) to evaluate cognitive function in the groups of healthy control (HC), obesity (OB), and severe obesity (SOB). We detected the levels of endocrine hormones and cortisol at 8:00 am in the three groups. We statistically analyzed differences in cognitive function and levels of endocrine hormones among the three groups, and performed linear correlation analysis of cortisol level and cognitive function. Using mediation analysis, we assessed the influences of body mass index (BMI) on endocrine levels and cognitive function. RESULTS Our findings revealed that OB and SOB groups exhibited a lower level of cortisol than HC group. Among the three groups, we found significant differences in verbal learning (F = 4.433, P = 0.014), social cognition (F = 4.778, P = 0.010), and total cognition (F = 2.989, P = 0.008). After post hoc Bonferroni correction, we noted that SOB group had worse scores in the above-mentioned three areas than OB and HC groups. Moreover, except for working memory and visual cognition, we identified that the degree of cognitive impairment in SOB group was more severe than that in OB group. In our study, mediation analysis showed a mediating effect of BMI on cortisol level and verbal learning. We also found correlations between cortisol level and attention/alertness (r = 0.277, P = 0.003), between cortisol level and verbal learning (r = 0.205, P = 0.030), and between BMI and verbal learning (r = - 0.192, P = 0.043). CONCLUSION In our study, patients in both OB and SOB groups experienced a widespread cognitive impairment. We also found that patients with severe obesity had more severe cognitive impairment. Cognitive impairment could be mediated by abnormal cortisol metabolism, and BMI could be a mediating factor in regulation of cortisol level.
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Affiliation(s)
- Yiliang Zhang
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China
| | - Biao Huang
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China.,Joint Institute of Metabolic Medicine Between State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong and Jinan University, Guangzhou, China
| | - Wah Yang
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China.,Joint Institute of Metabolic Medicine Between State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong and Jinan University, Guangzhou, China
| | - Shuming Zhong
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China
| | - Shunkai Lai
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China
| | - Hui Zhao
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China
| | - Jiali He
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China
| | - Shujing Cai
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China
| | - Sihui Lv
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China
| | - Cunchuan Wang
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China. .,Joint Institute of Metabolic Medicine Between State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong and Jinan University, Guangzhou, China.
| | - Yanbin Jia
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, No. 613, Huangpu Avenue West, Guangzhou, Guangdong, China.
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12
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Hussein HM, Elyamany MF, Rashed LA, Sallam NA. Vitamin D mitigates diabetes-associated metabolic and cognitive dysfunction by modulating gut microbiota and colonic cannabinoid receptor 1. Eur J Pharm Sci 2021; 170:106105. [PMID: 34942358 DOI: 10.1016/j.ejps.2021.106105] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/14/2021] [Accepted: 12/17/2021] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Obesity is associated with elevated endocannabinoid tone, gut dysbiosis, and inflammation predisposing to diabetes. The endocannabinoid system mediates the effects of gut microbiota and regulates the gut barrier integrity. We examined the effects of vitamin D (VD) on colonic cannabinoid receptor 1(CB1R), tight junction proteins, gut dysbiosis, metabolic and cognitive dysfunction in a model of type 2 diabetes compared with metformin. METHODS Rats received high-fat, high-sucrose diet (HFSD) and either VD (500 IU/kg/day; p.o.), or metformin (200 mg/kg/day; p.o.) for 8 weeks. After 6 weeks, streptozotocin (STZ) (40 mg/kg; i.p) was injected. Behavioral, cognitive, and metabolic assessments were carried out. Finally, fecal, blood, and tissue samples were collected to examine Bacteroidetes/Firmicutes ratio, colonic CB1R, zonula occludens-1 (ZO-1), occludin, and Toll-like receptor 4 (TLR4); serum lipopolysaccharides (LPS), peptidoglycan (PGN), tumor necrosis factor-alpha (TNF-ɑ), glucagon-like peptide-1 (GLP-1), lipids, and VD; hippocampal brain-derived neurotrophic factor (BDNF) and inflammatory markers. RESULTS VD ameliorated HFSD/STZ-induced dysbiosis/gut barrier dysfunction as indicated by lower circulating LPS, PGN and TNF-ɑ levels, likely by downregulating colonic CB1R and upregulating ZO-1 and occludin expressions. Additionally, VD suppressed HFSD/STZ-induced hyperglycemia, hyperinsulinemia, dyslipidemia, and hippocampal neuroinflammation. These changes culminated in improved glycemic control and cognitive function. VD was more effective than metformin in decreasing serum LPS and TNF-ɑ levels; whereas metformin resulted in better glycemic control. CONCLUSION Targeting gut microbiota by VD could be a successful strategy in the treatment of diabetes and associated cognitive deficit. The crosstalk between VD axis and the endocannabinoid system needs further exploration.
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Affiliation(s)
- Hebatallah M Hussein
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Egypt
| | - Mohammed F Elyamany
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Egypt
| | - Laila A Rashed
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Egypt
| | - Nada A Sallam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Egypt.
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13
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Lee M, Oh MS, Jung S, Lee JH, Kim CH, Jang MU, Kim YE, Bae HJ, Park J, Kang Y, Lee BC, Lim JS, Yu KH. Differential effects of body mass index on domain-specific cognitive outcomes after stroke. Sci Rep 2021; 11:14168. [PMID: 34239011 PMCID: PMC8266804 DOI: 10.1038/s41598-021-93714-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 06/29/2021] [Indexed: 11/12/2022] Open
Abstract
Although the obesity paradox is an important modifiable factor in cardiovascular diseases, little research has been conducted to determine how it affects post-stroke cognitive function. We aimed to investigate the association between body mass index (BMI) and domain-specific cognitive outcomes, focusing on the subdivision of each frontal domain function in post-ischemic stroke survivors. A total of 335 ischemic stroke patients were included in the study after completion of the Korean-Mini Mental Status Examination (K-MMSE) and the vascular cognitive impairment harmonization standards neuropsychological protocol at 3 months after stroke. Frontal lobe functions were analyzed using semantic/phonemic fluency, processing speed, and mental set shifting. Our study participants were categorized into four groups according to BMI quartiles. The z-scores of K-MMSE at 3 months differed significantly between the groups after adjustment for initial stroke severity (p = 0.014). Global cognitive function in stroke survivors in the Q1 (the lowest quartile) BMI group was significantly lower than those in Q2 and Q4 (the highest quartile) BMI groups (K-MMSE z-scores, Q1: − 2.10 ± 3.40 vs. Q2: 0.71 ± 1.95 and Q4: − 1.21 ± 1.65). Controlled oral word association test findings indicated that phonemic and semantic word fluency was lower in Q4 BMI group participants than in Q2 BMI group participants (p = 0.016 and p = 0.023 respectively). BMI might differentially affect cognitive domains after ischemic stroke. Although being underweight may negatively affect global cognition post-stroke, obesity could induce frontal lobe dysfunctions, specifically phonemic and semantic word fluency.
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Affiliation(s)
- Minwoo Lee
- Department of Neurology, Hallym Neurological Institute, Hallym University Sacred Heart Hospital, 896, Anyang-City, 430-070, South Korea
| | - Mi Sun Oh
- Department of Neurology, Hallym Neurological Institute, Hallym University Sacred Heart Hospital, 896, Anyang-City, 430-070, South Korea
| | - San Jung
- Department of Neurology, Kangnam Sacred Heart Hospital, Seoul, South Korea
| | - Ju-Hun Lee
- Department of Neurology, Kangdong Sacred Heart Hospital, Seoul, South Korea
| | - Chul-Ho Kim
- Department of Neurology, Chunchon Sacred Heart Hospital, Chunchon, South Korea
| | - Min Uk Jang
- Department of Neurology, Dongtan Sacred Heart Hospital, Hwaseong, South Korea
| | - Young Eun Kim
- Department of Neurology, Hallym Neurological Institute, Hallym University Sacred Heart Hospital, 896, Anyang-City, 430-070, South Korea
| | - Hee-Joon Bae
- Department of Neurology, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Jaeseol Park
- Department of Neurology, Hallym Neurological Institute, Hallym University Sacred Heart Hospital, 896, Anyang-City, 430-070, South Korea
| | - Yeonwook Kang
- Department of Psychology, Hallym University, Chunchon, South Korea
| | - Byung-Chul Lee
- Department of Neurology, Hallym Neurological Institute, Hallym University Sacred Heart Hospital, 896, Anyang-City, 430-070, South Korea
| | - Jae-Sung Lim
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine , 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea.
| | - Kyung-Ho Yu
- Department of Neurology, Hallym Neurological Institute, Hallym University Sacred Heart Hospital, 896, Anyang-City, 430-070, South Korea.
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14
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Müller L, Power Guerra N, Stenzel J, Rühlmann C, Lindner T, Krause BJ, Vollmar B, Teipel S, Kuhla A. Long-Term Caloric Restriction Attenuates β-Amyloid Neuropathology and Is Accompanied by Autophagy in APPswe/PS1delta9 Mice. Nutrients 2021; 13:nu13030985. [PMID: 33803798 PMCID: PMC8003277 DOI: 10.3390/nu13030985] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/09/2021] [Accepted: 03/16/2021] [Indexed: 12/14/2022] Open
Abstract
Caloric restriction (CR) slows the aging process, extends lifespan, and exerts neuroprotective effects. It is widely accepted that CR attenuates β-amyloid (Aβ) neuropathology in models of Alzheimer's disease (AD) by so-far unknown mechanisms. One promising process induced by CR is autophagy, which is known to degrade aggregated proteins such as amyloids. In addition, autophagy positively regulates glucose uptake and may improve cerebral hypometabolism-a hallmark of AD-and, consequently, neural activity. To evaluate this hypothesis, APPswe/PS1delta9 (tg) mice and their littermates (wild-type, wt) underwent CR for either 16 or 68 weeks. Whereas short-term CR for 16 weeks revealed no noteworthy changes of AD phenotype in tg mice, long-term CR for 68 weeks showed beneficial effects. Thus, cerebral glucose metabolism and neuronal integrity were markedly increased upon 68 weeks CR in tg mice, indicated by an elevated hippocampal fluorodeoxyglucose [18F] ([18F]FDG) uptake and increased N-acetylaspartate-to-creatine ratio using positron emission tomography/computer tomography (PET/CT) imaging and magnet resonance spectroscopy (MRS). Improved neuronal activity and integrity resulted in a better cognitive performance within the Morris Water Maze. Moreover, CR for 68 weeks caused a significant increase of LC3BII and p62 protein expression, showing enhanced autophagy. Additionally, a significant decrease of Aβ plaques in tg mice in the hippocampus was observed, accompanied by reduced microgliosis as indicated by significantly decreased numbers of iba1-positive cells. In summary, long-term CR revealed an overall neuroprotective effect in tg mice. Further, this study shows, for the first time, that CR-induced autophagy in tg mice accompanies the observed attenuation of Aβ pathology.
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Affiliation(s)
- Luisa Müller
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
- Department of Psychosomatic Medicine and Psychotherapy, University of Rostock, 18147 Rostock, Germany;
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), University of Rostock, 18147 Rostock, Germany
| | - Nicole Power Guerra
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
| | - Jan Stenzel
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Center, 18057 Rostock, Germany; (J.S.); (T.L.); (B.J.K.)
| | - Claire Rühlmann
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
| | - Tobias Lindner
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Center, 18057 Rostock, Germany; (J.S.); (T.L.); (B.J.K.)
| | - Bernd J. Krause
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Center, 18057 Rostock, Germany; (J.S.); (T.L.); (B.J.K.)
- Department of Nuclear Medicine, Rostock University Medical Center, 18057 Rostock, Germany
| | - Brigitte Vollmar
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Center, 18057 Rostock, Germany; (J.S.); (T.L.); (B.J.K.)
| | - Stefan Teipel
- Department of Psychosomatic Medicine and Psychotherapy, University of Rostock, 18147 Rostock, Germany;
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), University of Rostock, 18147 Rostock, Germany
- German Center for Neurodegenerative Diseases (DZNE)–Rostock/Greifswald, 18147 Rostock and 17489 Greifswald, Germany
| | - Angela Kuhla
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), University of Rostock, 18147 Rostock, Germany
- Correspondence: ; Tel.: +49-381-494-2503
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15
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Stickel AM, Tarraf W, Gonzalez KA, Isasi CR, Kaplan R, Gallo LC, Zeng D, Cai J, Pirzada A, Daviglus ML, Goodman ZT, Schneiderman N, González HM. Central Obesity, Cardiometabolic Risk, and Cognitive Change in the Study of Latinos - Investigation of Neurocognitive Aging. J Alzheimers Dis 2021; 82:1203-1218. [PMID: 34151803 PMCID: PMC10792520 DOI: 10.3233/jad-210314] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The relationships between obesity and cognitive decline in aging are mixed and understudied among Hispanics/Latinos. OBJECTIVE To understand associations between central obesity, cognitive aging, and the role of concomitant cardiometabolic abnormalities among Hispanics/Latinos. METHODS Participants included 6,377 diverse Hispanics/Latinos enrolled in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) and SOL-Investigation for Neurocognitive Aging (SOL-INCA). Participants were 45 years and older at the first cognitive testing session (Visit 1). Cognitive outcomes (z-score units) included global composite and domain specific (learning, memory, executive functioning, processing speed) measures at a second visit (SOL-INCA, on average, 7 years later), and 7-year change. We used survey linear regression to examine associations between central obesity (waist circumference≥88 cm and≥102 cm for women and men, respectively) and cognition. We also tested whether the relationships between obesity and cognition differed by cardiometabolic status (indication of/treatment for 2 + of the following: high triglycerides, hypertension, hyperglycemia, low high-density lipoprotein cholesterol). RESULTS Central obesity was largely unassociated with cognitive outcomes, adjusting for covariates. However, among individuals with central obesity, cardiometabolic abnormality was linked to poorer cognitive function at SOL-INCA (ΔGlobalCognition =-0.165, p < 0.001) and to more pronounced cognitive declines over the average 7 years (ΔGlobalCognition = -0.109, p < 0.05); this was consistent across cognitive domains. CONCLUSION Central obesity alone was not associated with cognitive function. However, presence of both central obesity and cardiometabolic abnormalities was robustly predictive of cognition and 7-year cognitive declines, suggesting that in combination these factors may alter the cognitive trajectories of middle-aged and older Hispanics/Latinos.
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Affiliation(s)
- Ariana M. Stickel
- Department of Neurosciences and Shiley-Marcos Alzheimer’s Disease Research Center, University of California, San Diego, La Jolla, CA
| | - Wassim Tarraf
- Institute of Gerontology & Department of Healthcare Sciences, Wayne State University, Detroit, Michigan
| | - Kevin A. Gonzalez
- Department of Neurosciences and Shiley-Marcos Alzheimer’s Disease Research Center, University of California, San Diego, La Jolla, CA
| | - Carmen R. Isasi
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine
| | - Robert Kaplan
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine
| | - Linda C. Gallo
- Department of Psychology, San Diego State University, San Diego, CA
| | - Donglin Zeng
- Department of Biostatistics, University of North Carolina, Chapel Hill, NC
| | - Jianwen Cai
- Department of Biostatistics, University of North Carolina, Chapel Hill, NC
| | - Amber Pirzada
- Institute for Minority Health Research, University of Illinois at Chicago, College of Medicine, Chicago, IL
| | - Martha L. Daviglus
- Institute for Minority Health Research, University of Illinois at Chicago, College of Medicine, Chicago, IL
| | | | | | - Hector M. González
- Department of Neurosciences and Shiley-Marcos Alzheimer’s Disease Research Center, University of California, San Diego, La Jolla, CA
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Power Guerra N, Müller L, Pilz K, Glatzel A, Jenderny D, Janowitz D, Vollmar B, Kuhla A. Dietary-Induced Low-Grade Inflammation in the Liver. Biomedicines 2020; 8:biomedicines8120587. [PMID: 33317065 PMCID: PMC7763065 DOI: 10.3390/biomedicines8120587] [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: 10/19/2020] [Revised: 11/26/2020] [Accepted: 12/07/2020] [Indexed: 02/07/2023] Open
Abstract
The literature describes a close correlation between metabolic disorders and abnormal immune responses, like low-grade inflammation (LGI), which may be one mechanistic link between obesity and various comorbidities, including non-alcoholic fatty liver disease (NAFLD). In our study, we investigated the influence of dietary composition on obesity-derived LGI in the liver. We used a dietary induced obesity mouse model of C57BL/6J mice fed with high fat diet (HFD, 60% fat, 20% protein, 20% carbohydrates) and two different controls. One was rich in carbohydrates (10% fat, 20% protein, 70% carbohydrates), further referred to as the control diet (CD), and the other one is referred to as the standard diet (SD), with a more balanced macronutrient content (9% fat, 33% protein, 58% carbohydrates). Our results showed a significant increased NAFLD activity score in HFD compared to both controls, but livers of the CD group also differed in their macroscopic appearance from healthy livers. Hepatic fat content showed significantly elevated cholesterol concentrations in the CD group. Histologic analysis of the cellular immune response in the liver showed no difference between HFD and CD and expression analysis of immunologic mediators like interleukin (IL)-1β, IL-6, IL-10 and tumor necrosis factor alpha also point towards a pro-inflammatory response to CD, comparable to LGI in HFD. Therefore, when studying diet-induced obesity with a focus on inflammatory processes, we encourage researchers to carefully select controls and not use a control diet disproportionally rich in carbohydrates.
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Affiliation(s)
- Nicole Power Guerra
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (N.P.G.); (L.M.); (A.G.); (D.J.); (B.V.)
| | - Luisa Müller
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (N.P.G.); (L.M.); (A.G.); (D.J.); (B.V.)
- Department of Psychosomatic Medicine and Psychotherapy, University of Rostock, 18147 Rostock, Germany
| | - Kristin Pilz
- Department of Psychiatry, University of Greifswald, 17489 Greifswald, Germany; (K.P.); (D.J.)
| | - Annika Glatzel
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (N.P.G.); (L.M.); (A.G.); (D.J.); (B.V.)
| | - Daniel Jenderny
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (N.P.G.); (L.M.); (A.G.); (D.J.); (B.V.)
| | - Deborah Janowitz
- Department of Psychiatry, University of Greifswald, 17489 Greifswald, Germany; (K.P.); (D.J.)
| | - Brigitte Vollmar
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (N.P.G.); (L.M.); (A.G.); (D.J.); (B.V.)
| | - Angela Kuhla
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (N.P.G.); (L.M.); (A.G.); (D.J.); (B.V.)
- Correspondence: ; Tel.: +49-381-494-2503
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17
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Smith KA, Bradbury K, Essery R, Pollet S, Mowbray F, Slodkowska-Barabasz J, Denison-Day J, Hayter V, Kelly J, Somerville J, Zhang J, Grey E, Western M, Ferrey AE, Krusche A, Stuart B, Mutrie N, Robinson S, Yao GL, Griffiths G, Robinson L, Rossor M, Gallacher J, Griffin S, Kendrick T, Rathod S, Gudgin B, Phillips R, Stokes T, Niven J, Little P, Yardley L. The Active Brains Digital Intervention to Reduce Cognitive Decline in Older Adults: Protocol for a Feasibility Randomized Controlled Trial. JMIR Res Protoc 2020; 9:e18929. [PMID: 33216010 PMCID: PMC7718093 DOI: 10.2196/18929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 08/04/2020] [Accepted: 08/16/2020] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Increasing physical activity, improving diet, and performing brain training exercises are associated with reduced cognitive decline in older adults. OBJECTIVE In this paper, we describe a feasibility trial of the Active Brains intervention, a web-based digital intervention developed to support older adults to make these 3 healthy behavior changes associated with improved cognitive health. The Active Brains trial is a randomized feasibility trial that will test how accessible, acceptable, and feasible the Active Brains intervention is and the effectiveness of the study procedures that we intend to use in the larger, main trial. METHODS In the randomized controlled trial (RCT), we use a parallel design. We will be conducting the intervention with 2 populations recruited through GP practices (family practices) in England from 2018 to 2019: older adults with signs of cognitive decline and older adults without any cognitive decline. Trial participants were randomly allocated to 1 of 3 study groups: usual care, the Active Brains intervention, or the Active Brains website plus brief support from a trained coach (over the phone or by email). The main outcomes are performance on cognitive tasks, quality of life (using EuroQol-5D 5 level), Instrumental Activities of Daily Living, and diagnoses of dementia. Secondary outcomes (including depression, enablement, and health care costs) and process measures (including qualitative interviews with participants and supporters) will also be collected. The trial has been approved by the National Health Service Research Ethics Committee (reference 17/SC/0463). RESULTS Results will be published in peer-reviewed journals, presented at conferences, and shared at public engagement events. Data collection was completed in May 2020, and the results will be reported in 2021. CONCLUSIONS The findings of this study will help us to identify and make important changes to the website, the support received, or the study procedures before we progress to our main randomized phase III trial. TRIAL REGISTRATION International Standard Randomized Controlled Trial Number 23758980; http://www.isrctn.com/ISRCTN23758980. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/18929.
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Affiliation(s)
- Kirsten Ailsa Smith
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - Katherine Bradbury
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - Rosie Essery
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - Sebastien Pollet
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - Fiona Mowbray
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - Joanna Slodkowska-Barabasz
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - James Denison-Day
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - Victoria Hayter
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - Jo Kelly
- Primary Care and Population Sciences, University of Southampton, Southampton, United Kingdom
| | - Jane Somerville
- Primary Care and Population Sciences, University of Southampton, Southampton, United Kingdom
| | - Jin Zhang
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - Elisabeth Grey
- Department for Health, University of Bath, Bath, United Kingdom
| | - Max Western
- Department for Health, University of Bath, Bath, United Kingdom
| | - Anne E Ferrey
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Adele Krusche
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
| | - Beth Stuart
- Primary Care and Population Sciences, University of Southampton, Southampton, United Kingdom
| | - Nanette Mutrie
- Physical Activity for Health Research Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Sian Robinson
- NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle upon Tyne NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Guiqing Lily Yao
- Primary Care and Population Sciences, University of Southampton, Southampton, United Kingdom
| | - Gareth Griffiths
- Southampton Clinical Trials Unit, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom
| | - Louise Robinson
- Institute of Population Health Sciences, University of Newcastle, Newcastle upon Tyne, United Kingdom
| | - Martin Rossor
- Dementia Research Centre, University College London, London, United Kingdom
| | - John Gallacher
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Simon Griffin
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Tony Kendrick
- Primary Care and Population Sciences, University of Southampton, Southampton, United Kingdom
| | - Shanaya Rathod
- Southern Health NHS Foundation Trust, Southampton, United Kingdom
| | - Bernard Gudgin
- Public and Patient Involvement (PPI) representative, University of Southampton, Southampton, United Kingdom
| | - Rosemary Phillips
- Public and Patient Involvement (PPI) representative, University of Southampton, Southampton, United Kingdom
| | - Tom Stokes
- Public and Patient Involvement (PPI) representative, University of Southampton, Southampton, United Kingdom
| | - John Niven
- Public and Patient Involvement (PPI) representative, University of Southampton, Southampton, United Kingdom
| | - Paul Little
- Primary Care and Population Sciences, University of Southampton, Southampton, United Kingdom
| | - Lucy Yardley
- Centre for Community and Clinical Applications of Health Psychology, University of Southampton, Southampton, United Kingdom
- School of Psychological Science, University of Bristol, Bristol, United Kingdom
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18
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Fu J, Liu Q, Du Y, Zhu Y, Sun C, Lin H, Jin M, Ma F, Li W, Liu H, Zhang X, Chen Y, Sun Z, Wang G, Huang G. Age- and Sex-Specific Prevalence and Modifiable Risk Factors of Mild Cognitive Impairment Among Older Adults in China: A Population-Based Observational Study. Front Aging Neurosci 2020; 12:578742. [PMID: 33192471 PMCID: PMC7662098 DOI: 10.3389/fnagi.2020.578742] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/23/2020] [Indexed: 12/11/2022] Open
Abstract
Background Minimal data are available on the prevalence of mild cognitive impairment (MCI) in older Chinese adults. Moreover, the current information on MCI shows important geographical variations. Objective We aimed to assess the prevalence and risk factors for MCI by age and sex among older adults in a North Chinese population. Methods In this population-based cross-sectional study, we enrolled a random sample of 4,943 adults aged ≥ 60 years between March 2018 and June 2019 in Tianjin, China. Of these, 312 individuals were excluded due to a lack of data (e.g., fasting blood test). As a result, 4,631 subjects were assessed. Individuals with MCI were identified using neuropsychological assessments, including the Mini-Mental State Examination and Activities of Daily Living scale, based on a modified version of the Petersen’s criteria. Results The mean (SD) age of the 4,631 participants was 67.6 (4.89) years, and 2,579 (55.7%) were female. The overall age- and sex-standardized prevalence of MCI in our study population was 10.7%. There were significant associations of MCI with age [65–69 vs. 60–64 years, OR = 0.74; 95% confidence interval (CI): 0.58, 0.96], physical activity (≥23.0 vs. <23.0 MET-hours/week, OR = 0.79; 95% CI: 0.64, 0.96), body mass index (BMI) (OR = 0.92; 95% CI: 0.89, 0.95), grip strength (OR = 0.50; 95% CI: 0.38, 0.67), hypertension (yes vs. no, OR = 1.44; 95% CI: 1.18, 1.77), higher levels of sleepiness (OR = 1.80; 95% CI: 1.36, 2.37), and longer sleep duration (OR = 1.40; 95% CI: 1.14, 1.72). The inverse association between BMI and MCI was stronger in older age groups (P for heterogeneity = 0.003). Moreover, the magnitude of association between triglycerides and MCI was different between the sexes (P for heterogeneity = 0.029). Conclusion The age- and sex-standardized prevalence of MCI was 10.7% in the study sample. Physical activity, BMI, grip strength, sleepiness, sleep duration, and hypertension were associated with the prevalence of MCI. Additionally, triglycerides and BMI might be differently associated with the presence of MCI for different sexes and age stages, respectively.
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Affiliation(s)
- Jingzhu Fu
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Qian Liu
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Yue Du
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.,Department of Social Medicine and Health Management, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Yun Zhu
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.,Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Changqing Sun
- Neurosurgical Department of Baodi Clinical College of Tianjin Medical University, Tianjin, China
| | - Hongyan Lin
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Mengdi Jin
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Fei Ma
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Wen Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Huan Liu
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Xumei Zhang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Yongjie Chen
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.,Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Zhuoyu Sun
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.,Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Guangshun Wang
- Department of Tumor, Baodi Clinical College of Tianjin Medical University, Tianjin, China
| | - Guowei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
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19
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Weissberger GH, Gollan TH, Bondi MW, Nation DA, Hansen LA, Galasko D, Salmon DP. Neuropsychological Deficit Profiles, Vascular Risk Factors, and Neuropathological Findings in Hispanic Older Adults with Autopsy-Confirmed Alzheimer's Disease. J Alzheimers Dis 2020; 67:291-302. [PMID: 30636736 DOI: 10.3233/jad-180351] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
This study aimed to determine if patterns of neuropsychological deficits, vascular risk factors, and neuropathology differ in Hispanic and Non-Hispanic patients with autopsy-confirmed Alzheimer's disease (AD). Participants were enrolled in a longitudinal study at the Shiley-Marcos AD Research Center at the University of California, San Diego. Hispanic (n = 14) and Non-Hispanic (n = 20) patients with autopsy-confirmed AD who scored ≥95 on the Dementia Rating Scale (DRS) were included. Patient groups were matched on age, education, global mental status, and severity of functional decline; they were compared to Hispanic (n = 14) or Non-Hispanic (n = 20) cognitively-normal controls of similar age and education. Ethnicity (Hispanic, Non-Hispanic) by disease state (autopsy-confirmed AD or cognitively normal) comparisons were made for cognitive test performance and vascular risk factors. Patient groups were further compared on measures of AD (Braak stage, neuritic plaques, neurofibrillary tangles), vascular neuropathology, and performance across cognitive domains of memory, language, attention, executive functions, and visuospatial abilities after scores were z-transformed based on respective culturally-appropriate control groups. Patient groups had similar overall AD pathology burden, whereas Hispanics with AD had more small parenchymal arteriolar disease and amyloid angiopathy than Non-Hispanics with AD. Despite largely similar pathology, Hispanics with AD were less cognitively impaired (relative to respective NC groups) than Non-Hispanics with AD, and exhibited a different pattern of deficits across cognitive domains. Findings suggest that cognitive deficits that are usually prominent in AD may be less salient in Hispanic patients and this may adversely impact the ability to clinically detect the disease in mild to moderate stages.
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Affiliation(s)
- Gali H Weissberger
- Department of Family Medicine, USC Keck School of Medicine, Alhambra, CA, USA
| | - Tamar H Gollan
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA.,Department of Psychology, University of California, San Diego, La Jolla, CA, USA
| | - Mark W Bondi
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA.,Neurology Service, VA San Diego Healthcare System, San Diego, CA, USA
| | - Daniel A Nation
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | - Lawrence A Hansen
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA.,Department of Neuropathology, University of California, San Diego, La Jolla, CA, USA
| | - Douglas Galasko
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA.,Neurology Service, VA San Diego Healthcare System, San Diego, CA, USA
| | - David P Salmon
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
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20
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Obesity Is Less Frequently Associated with Cognitive Impairment in Elderly Individuals: A Cross-Sectional Study in Yogyakarta, Indonesia. Nutrients 2020; 12:nu12020367. [PMID: 32019161 PMCID: PMC7071195 DOI: 10.3390/nu12020367] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 12/16/2022] Open
Abstract
Obesity is one of the factors associated with cognitive impairment. However, obesity may differently affect cognitive function in different age groups, and scarce data are available from low- and middle-income countries. This cross-sectional study aimed to identify the association between obesity and cognitive impairment among 143 elderly individuals in Yogyakarta. We recorded the sociodemographic factors and some comorbidities, also measured the body mass index as a parameter of obesity, cognitive function using Montreal Cognitive Assessment—Indonesia, mood condition and depression status using geriatric depression scale-short form, as well as the daily life function using Activity of Daily Living and Instrumental Activity of Daily Living. After adjustment for the sociodemographic and comorbidities, we found that subjects with older age were more likely to have cognitive impairment (odds ratio [OR] 3.544, 95%CI: 1.36–9.22, p < 0.01) and compared with elderly individuals with normal weight, obese elderly individuals were 40% less likely to have cognitive impairment (OR 0.604, 95%CI: 0.39–0.95, p < 0.05). This study suggests that obesity in elderly individuals is less frequently associated with cognitive impairment. These findings support the reverse causation mechanism related to body mass index (BMI) and cognitive impairment in low/middle-income countries.
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21
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Fard MT, Cribb L, Nolidin K, Savage K, Wesnes K, Stough C. Is there a relationship between low-grade systemic inflammation and cognition in healthy people aged 60-75 years? Behav Brain Res 2020; 383:112502. [PMID: 31981652 DOI: 10.1016/j.bbr.2020.112502] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/06/2020] [Accepted: 01/21/2020] [Indexed: 01/03/2023]
Abstract
Although inflammation has been associated with cognitive impairment in dementia, less is known about its role in the cognition of middle to older aged healthy people. This study utilised baseline data from the Australian Research Council Longevity Intervention (ARCLI) trial to investigate the relationship between markers of systemic inflammation (TNF-α, IL-6, IL-1β, INF-γ, IL-2, IL-4, IL-10 and hsCRP) and cognitive function in 286 healthy volunteers aged 60-75 years. We assessed cognitive functioning across domains including attention, speed of memory, working memory and episodic memory using the Cognitive Drug Research test battery. Only IFN-γ was related to cognitive function, being associated with greater odds of having low continuity of attention (log2 IFN-γ OR, 1.46; 95 % CI, 1.18-1.85). The relationship between episodic memory, speed of memory and inflammation varied with BMI. In high BMI participants, increased inflammation was associated with worse cognitive function, while this association was reversed in those with low BMI. Outside of the influence of IFN-γ on attention, low-grade systemic inflammation was not robustly associated with cognitive function in this sample of middle to older aged healthy people. Further research is required to understand the role of BMI in the intersection of inflammation and cognitive function.
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Affiliation(s)
- M T Fard
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, Australia
| | - L Cribb
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, Australia; Professorial Unit, The Melbourne Clinic, Department of Psychiatry, The University of Melbourne, Melbourne, Australia
| | - K Nolidin
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, Australia
| | - K Savage
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, Australia
| | - K Wesnes
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, Australia; Wesnes Cognition Ltd, Little Paddock, Streatley Hill, Streatley on Thames, RG8 9RD, UK
| | - C Stough
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, Australia.
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22
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Buie JJ, Watson LS, Smith CJ, Sims-Robinson C. Obesity-related cognitive impairment: The role of endothelial dysfunction. Neurobiol Dis 2019; 132:104580. [PMID: 31454547 PMCID: PMC6834913 DOI: 10.1016/j.nbd.2019.104580] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 07/27/2019] [Accepted: 08/20/2019] [Indexed: 12/16/2022] Open
Abstract
Obesity is a global pandemic associated with macro- and microvascular endothelial dysfunction. Microvascular endothelial dysfunction has recently emerged as a significant risk factor for the development of cognitive impairment. In this review, we present evidence from clinical and preclinical studies supporting a role for obesity in cognitive impairment. Next, we discuss how obesity-related hyperinsulinemia/insulin resistance, systemic inflammation, and gut dysbiosis lead to cognitive impairment through induction of endothelial dysfunction and disruption of the blood brain barrier. Finally, we outline the potential clinical utility of dietary interventions, exercise, and bariatric surgery in circumventing the impacts of obesity on cognitive function.
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Affiliation(s)
- Joy Jones Buie
- WISSDOM Center, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Luke S Watson
- Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, USA; Molecular and Cellular Biology and Pathobiology Program, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Crystal J Smith
- Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Neurosciences, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Catrina Sims-Robinson
- Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, USA; Molecular and Cellular Biology and Pathobiology Program, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Neurosciences, Medical University of South Carolina, Charleston, SC 29425, USA.
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23
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Beyer F, Kharabian Masouleh S, Kratzsch J, Schroeter ML, Röhr S, Riedel-Heller SG, Villringer A, Witte AV. A Metabolic Obesity Profile Is Associated With Decreased Gray Matter Volume in Cognitively Healthy Older Adults. Front Aging Neurosci 2019; 11:202. [PMID: 31427957 PMCID: PMC6688742 DOI: 10.3389/fnagi.2019.00202] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 07/17/2019] [Indexed: 12/22/2022] Open
Abstract
Obesity is a risk factor for cognitive decline and gray matter volume loss in aging. Studies have shown that different metabolic factors, e.g., dysregulated glucose metabolism and systemic inflammation, might mediate this association. Yet, even though these risk factors tend to co-occur, they have mostly been investigated separately, making it difficult to establish their joint contribution to gray matter volume structure in aging. Here, we therefore aimed to determine a metabolic profile of obesity that takes into account different anthropometric and metabolic measures to explain differences in gray matter volume in aging. We included 748 elderly, cognitively healthy participants (age range: 60 - 79 years, BMI range: 17 - 42 kg/m2) of the LIFE-Adult Study. All participants had complete information on body mass index, waist-to-hip ratio, glycated hemoglobin, total blood cholesterol, high-density lipoprotein, interleukin-6, C-reactive protein, adiponectin and leptin. Voxelwise gray matter volume was extracted from T1-weighted images acquired on a 3T Siemens MRI scanner. We used partial least squares correlation to extract latent variables with maximal covariance between anthropometric, metabolic and gray matter volume and applied permutation/bootstrapping and cross-validation to test significance and reliability of the result. We further explored the association of the latent variables with cognitive performance. Permutation tests and cross-validation indicated that the first pair of latent variables was significant and reliable. The metabolic profile was driven by negative contributions from body mass index, waist-to-hip ratio, glycated hemoglobin, C-reactive protein and leptin and a positive contribution from adiponectin. It positively covaried with gray matter volume in temporal, frontal and occipital lobe as well as subcortical regions and cerebellum. This result shows that a metabolic profile characterized by high body fat, visceral adiposity and systemic inflammation is associated with reduced gray matter volume and potentially reduced executive function in older adults. We observed the highest contributions for body weight and fat mass, which indicates that factors underlying sustained energy imbalance, like sedentary lifestyle or intake of energy-dense food, might be important determinants of gray matter structure in aging.
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Affiliation(s)
- Frauke Beyer
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- Subproject A1, CRC 1052 “Obesity Mechanisms”, University of Leipzig, Leipzig, Germany
| | - Shahrzad Kharabian Masouleh
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- Institute of Neuroscience and Medicine (INM-7: Brain and Behaviour), Research Centre Jülich, Jülich, Germany
| | - Jürgen Kratzsch
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University of Leipzig, Leipzig, Germany
| | - Matthias L. Schroeter
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- Clinic for Cognitive Neurology, University of Leipzig, Leipzig, Germany
| | - Susanne Röhr
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
| | - Steffi G. Riedel-Heller
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
| | - Arno Villringer
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- Subproject A1, CRC 1052 “Obesity Mechanisms”, University of Leipzig, Leipzig, Germany
- Clinic for Cognitive Neurology, University of Leipzig, Leipzig, Germany
| | - A. Veronica Witte
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- Subproject A1, CRC 1052 “Obesity Mechanisms”, University of Leipzig, Leipzig, Germany
- Clinic for Cognitive Neurology, University of Leipzig, Leipzig, Germany
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24
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Zhang Z, Coppin G. To What Extent Memory Could Contribute to Impaired Food Valuation and Choices in Obesity? Front Psychol 2018; 9:2523. [PMID: 30618948 PMCID: PMC6297373 DOI: 10.3389/fpsyg.2018.02523] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 11/27/2018] [Indexed: 12/17/2022] Open
Abstract
Obesity is associated with a diverse array of cognitive and affective deficits, among which impairments in food valuation and choices have received increasing attention. The neural underpinnings of such impairments, however, remain poorly understood, partly because a complete understanding of these processes under normal conditions has yet to be achieved. A rapidly growing literature on the interaction between memory and decision-making has begun to highlight the integral role of memory in decision making especially in the real world, as well as the role of the hippocampus in supporting flexible decision making. Perhaps not coincidentally, altered memory performances in obesity have been well documented, and the underlying neurobiological bases of these memory alterations have also started to be better described, involving pathologies at the biochemical, cellular, and circuit levels. Despite such correspondence, the link between memory impairments and food valuation/choice deficits in obesity has received little attention. In this article, we first summarize the growing empirical support for the relevance of memory for decision making, focusing on flexible value-based decisions. We then describe converging evidence on different forms of memory impairments accompanying obesity. Building on these findings, we formulate a general neuropsychological framework and discuss how dysfunctions in the formation and retrieval of memory may interfere with adaptive decision making for food. Finally, we stress the important practical implications of this framework, arguing that memory deficits are likely a significant contributor to suboptimal food purchase and eating behavior exhibited by obese individuals.
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Affiliation(s)
- Zhihao Zhang
- Haas School of Business, University of California, Berkeley, Berkeley, CA, United States.,Department of Neurology, University of California, San Francisco, San Francisco, CA, United States
| | - Géraldine Coppin
- Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland.,Laboratory for the Study of Emotion Elicitation and Expression, Department of Psychology, University of Geneva, Geneva, Switzerland.,Department of Psychology, Distance Learning University Switzerland (Unidistance), Brig, Switzerland
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25
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Subjective age and adiposity: evidence from five samples. Int J Obes (Lond) 2018; 43:938-941. [PMID: 30250240 DOI: 10.1038/s41366-018-0179-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 06/23/2018] [Accepted: 07/01/2018] [Indexed: 11/08/2022]
Abstract
Obesity is a significant public health issue with increasing prevalence among middle-aged and older adults. The present study tested whether subjective age, that is how old or young individuals perceive themselves to be, is related to both BMI and waist circumference in five samples of middle-aged and older adults (total N > 24,000; aged 34 to 105 years). Cross-sectional analyses that accounted for demographic variables revealed that an older subjective age was related to higher BMI and waist circumference in the five samples. Feeling older was related to a 10-20% higher likelihood of BMI ≥ 30 and a 11-25% higher likelihood of exceeding the obesity-related threshold for waist circumference. For most associations, age felt was more consistently and strongly related to adiposity than chronological age. The overall pattern was confirmed by a meta-analysis of the five samples. The present research adds subjective age to the list of factors related to obesity across adulthood.
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26
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The relationship between adiposity and cognitive function in a large community-dwelling population: data from the Trinity Ulster Department of Agriculture (TUDA) ageing cohort study. Br J Nutr 2018; 120:517-527. [DOI: 10.1017/s0007114518001848] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractPrevious reports investigating adiposity and cognitive function in the population allude to a negative association, although the relationship in older adults is unclear. The aim of this study was to investigate the association of adiposity (BMI and waist:hip ratio (WHR)) with cognitive function in community-dwelling older adults (≥60 years). Participants included 5186 adults from the Trinity Ulster Department of Agriculture ageing cohort study. Neuropsychological assessment measures included the Mini-Mental State Examination (MMSE), Frontal Assessment Battery (FAB) and Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). Multi-variable linear regression models were used to assess the association between adiposity and cognitive function adjusting for insulin resistance, inflammation and cerebrovascular disease. The mean ages were 80·3 (sd6·7), 71·0 (sd7·3) and 70·2 (sd6·3) years on the cognitive, bone and hypertensive cohorts, respectively. In the cognitive cohort, BMI was positively associated with immediate and delay memory, visuospatial/constructional ability, language and MMSE, and negatively with FAB (log-transformed), whereas WHR was negatively associated with attention. In the bone cohort, BMI was not associated with any cognitive domain, whereas WHR was negatively associated with visuospatial/constructional ability, attention and MMSE. In the hypertensive cohort, BMI was not associated with any cognitive domain, whereas WHR was negatively associated with immediate and delayed memory, visuospatial/constructional ability, language and MMSE and positively with FAB (log-transformed). In the cognitive and bone cohorts, the association of WHR and attention disappeared by further controlling for C-reactive protein and HbA1C. In this study of older adults, central adiposity was a stronger predictor of poor cognitive performance than BMI. Older adults could benefit from targeted public health strategies aimed at reducing obesity and obeseogenic risk factors to avoid/prevent/slow cognitive dysfunction.
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The Mediating Role of Overweight and Obesity in the Prospective Association between Overall Dietary Quality and Healthy Aging. Nutrients 2018; 10:nu10040515. [PMID: 29677164 PMCID: PMC5946300 DOI: 10.3390/nu10040515] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 04/10/2018] [Accepted: 04/16/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Our objective was to quantify to what extent the association between adherence to the French nutritional recommendations at midlife, measured by the Programme National Nutrition Santé-Guideline Score (PNNS-GS), and healthy aging (HA) is mediated by body mass index (BMI) status. METHODS We analyzed data from 2249 participants of the French 'Supplementation with Vitamins and Mineral Antioxidants' (SU.VI.MAX-'SUpplémentation en VItamines et Minéraux AntioXydants') cohort. At baseline (1994⁻1995), data on BMI status (<25 vs. ≥25 and <30 vs. ≥30) and diet were collected. At follow-up (2007⁻2009), HA status (yes/no) was evaluated via a multidimensional concept focusing on chronic disease incidence, physical and cognitive functioning, mental and social health, pain, and perceived health. Relative risks (RR) were estimated by extensively adjusted robust-error-variance Poisson regression, and counterfactual-based mediation analysis was performed. RESULTS Our HA criteria were met by 39% of participants. We identified a positive direct relation of a greater adherence to the French nutritional recommendations, with the probability of HA (RRQuartile ₄ vsquartile ₁ = 1.31 (95% confidence interval (CI) = 1.13, 1.53)), and an indirect relation mediated by BMI status (1.01 (95% CI: 1.01, 1.02)), accounting for 5% of the total relation. CONCLUSION These results indicate that high dietary quality may contribute to the preservation of overall health during aging, partly via obesity prevention and partly via other mechanisms.
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Yin Z, Raj DD, Schaafsma W, van der Heijden RA, Kooistra SM, Reijne AC, Zhang X, Moser J, Brouwer N, Heeringa P, Yi CX, van Dijk G, Laman JD, Boddeke EWGM, Eggen BJL. Low-Fat Diet With Caloric Restriction Reduces White Matter Microglia Activation During Aging. Front Mol Neurosci 2018; 11:65. [PMID: 29593493 PMCID: PMC5857900 DOI: 10.3389/fnmol.2018.00065] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 02/15/2018] [Indexed: 12/31/2022] Open
Abstract
Rodent models of both aging and obesity are characterized by inflammation in specific brain regions, notably the corpus callosum, fornix, and hypothalamus. Microglia, the resident macrophages of the central nervous system, are important for brain development, neural support, and homeostasis. However, the effects of diet and lifestyle on microglia during aging are only partly understood. Here, we report alterations in microglia phenotype and functions in different brain regions of mice on a high-fat diet (HFD) or low-fat diet (LFD) during aging and in response to voluntary running wheel exercise. We compared the expression levels of genes involved in immune response, phagocytosis, and metabolism in the hypothalamus of 6-month-old HFD and LFD mice. We also compared the immune response of microglia from HFD or LFD mice to peripheral inflammation induced by intraperitoneal injection of lipopolysaccharide (LPS). Finally, we investigated the effect of diet, physical exercise, and caloric restriction (40% reduction compared to ad libitum intake) on microglia in 24-month-old HFD and LFD mice. Changes in diet caused morphological changes in microglia, but did not change the microglia response to LPS-induced systemic inflammation. Expression of phagocytic markers (i.e., Mac-2/Lgals3, Dectin-1/Clec7a, and CD16/CD32) in the white matter microglia of 24-month-old brain was markedly decreased in calorically restricted LFD mice. In conclusion, LFD resulted in reduced activation of microglia, which might be an underlying mechanism for the protective role of caloric restriction during aging-associated decline.
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Affiliation(s)
- Zhuoran Yin
- Department of Neurology, Tongji Hospital, Tongji Medical College of HUST, Huazhong University of Science and Technology, Wuhan, China
- Department of Neuroscience, Medical Physiology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Divya D. Raj
- Department of Neuroscience, Medical Physiology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Wandert Schaafsma
- Department of Neuroscience, Medical Physiology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Roel A. van der Heijden
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Susanne M. Kooistra
- Department of Neuroscience, Medical Physiology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Aaffien C. Reijne
- Laboratory of Pediatrics, Systems Medicine of Metabolism and Signaling Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Systems Biology Centre for Energy Metabolism and Ageing, University of Groningen, Groningen, Netherlands
- Groningen Institute for Evolutionary Life Sciences, Department of Behavioral Neuroscience, University of Groningen, Groningen, Netherlands
| | - Xiaoming Zhang
- Department of Neuroscience, Medical Physiology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Jill Moser
- Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Nieske Brouwer
- Department of Neuroscience, Medical Physiology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Peter Heeringa
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Chun-Xia Yi
- Department of Endocrinology and Metabolism, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Gertjan van Dijk
- Systems Biology Centre for Energy Metabolism and Ageing, University of Groningen, Groningen, Netherlands
- Groningen Institute for Evolutionary Life Sciences, Department of Behavioral Neuroscience, University of Groningen, Groningen, Netherlands
- ESRIG Centre for Isotope Research, University of Groningen, Groningen, Netherlands
| | - Jon D. Laman
- Department of Neuroscience, Medical Physiology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Erik W. G. M. Boddeke
- Department of Neuroscience, Medical Physiology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Bart J. L. Eggen
- Department of Neuroscience, Medical Physiology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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Farooq A, Gibson AM, J. Reilly J, Gaoua N. The Association between Obesity and Cognitive Function in Otherwise Healthy Premenopausal Arab Women. J Obes 2018; 2018:1741962. [PMID: 29707393 PMCID: PMC5863295 DOI: 10.1155/2018/1741962] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/30/2018] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE To examine the association between obesity and cognitive function in healthy premenopausal women. METHODS From a cohort of 220 women, 98 were randomly selected that provided complete data. Body composition was examined by dual-energy X-ray scan. All participants completed the Cambridge Neuropsychological Test Automated Battery (CANTAB) to assess cognitive performance in three domains: attention, memory, and planning executive function. The Reaction Time (RTI) test was used to assess motor and mental response speeds; the Stockings of Cambridge (SOC) test was used to assess planning executive function. For memory assessment, the Delayed Match to Sample (DMS), Pattern Recognition Memory (PRM), and Spatial Span (SSP) tests were used to assess forced choice recognition memory, visual pattern recognition memory, and working memory capacity, respectively. RESULTS 36 (36.7%) were morbidly obese, 22 (22.4%) obese, and 23 (23.5%) overweight. Performance on RTI and SOC planning ability were not associated with body mass index (BMI). DMS mean time to correct response, when stimulus is visible or immediately hidden (0 ms delay), was higher by 785 ± 302 ms (milliseconds) (p=0.011) and 587 ± 259 ms (p=0.026) in morbidly obese women compared to normal weight women. Memory span length was significantly lower in overweight (5.5 ± 1.3, p=0.008) and obese women (5.6 ± 1.6, p=0.007) compared to normal weight (6.7 ± 0.9). DEXA-assessed body fat (%) showed similar associations as BMI, and latency to correct response on DMS and PRM was positively correlated with percentage of body fat, but not with VO2 max. CONCLUSION In otherwise healthy premenopausal women, obesity did not impact accuracy on cognitive tasks related to attention, memory, or planning executive function, but morbid obesity was associated with higher latency to correct response on memory-specific tasks and lower memory span length.
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Affiliation(s)
- Abdulaziz Farooq
- Athlete Health and Performance Research, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK
| | - Ann-Marie Gibson
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK
| | - John J. Reilly
- School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK
| | - Nadia Gaoua
- School of Applied Sciences, London South Bank University, London, UK
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Scarpina F, Cau N, Cimolin V, Galli M, Castelnuovo G, Priano L, Pianta L, Corti S, Mauro A, Capodaglio P. Body-scaled action in obesity during locomotion: Insights on the nature and extent of body representation disturbances. J Psychosom Res 2017; 102:34-40. [PMID: 28992895 DOI: 10.1016/j.jpsychores.2017.09.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/23/2017] [Accepted: 09/01/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Conscious perception of our own body, also known as body image, can influence body-scaled actions. Certain conditions such as obesity are frequently accompanied by a negative body image, leaving open the question if body-scaled actions are distorted in these individuals. METHODS To shed light on this issue, we asked individuals affected by obesity to process dimensions of their own body in a real action: they walked in a straight-ahead direction, while avoiding collision with obstacles represented by door-like openings that varied in width. RESULTS Participants affected by obesity showed a body rotation behavior similar to that of the healthy weighted, but differences emerged in parameters such as step length and velocity. CONCLUSION When participants with obesity walk through door-like openings, their body parts rotation is scaled according to their physical body dimensions; however, they might try to minimize risk of collision. Our study is in line with the hypothesis that unconscious body-scaled actions are related to emotional, cognitive and perceptual components of a negative body image.
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Affiliation(s)
- Federica Scarpina
- "Rita Levi Montalcini" Department of Neuroscience, University of Turin, Turin, Italy; Psychology Research Laboratory, IRCCS Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo (VCO), Italy.
| | - Nicola Cau
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Veronica Cimolin
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Manuela Galli
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy; IRCCS "San Raffaele Pisana", Tosinvest Sanità, Rome, Italy
| | - Gianluca Castelnuovo
- Psychology Research Laboratory, IRCCS Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo (VCO), Italy; Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy
| | - Lorenzo Priano
- "Rita Levi Montalcini" Department of Neuroscience, University of Turin, Turin, Italy; Division of Neurology and Neuro-Rehabilitation, IRCCS Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo (VCO), Italy
| | - Lucia Pianta
- Division of Neurology and Neuro-Rehabilitation, IRCCS Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo (VCO), Italy; Research Laboratory in Biomechanics and Rehabilitation, Orthopedic Rehabilitation Unit, IRCCS Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo (VCO), Italy
| | - Stefania Corti
- Psychology Research Laboratory, IRCCS Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo (VCO), Italy
| | - Alessandro Mauro
- "Rita Levi Montalcini" Department of Neuroscience, University of Turin, Turin, Italy; Division of Neurology and Neuro-Rehabilitation, IRCCS Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo (VCO), Italy
| | - Paolo Capodaglio
- Research Laboratory in Biomechanics and Rehabilitation, Orthopedic Rehabilitation Unit, IRCCS Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo (VCO), Italy
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Dietary teasaponin ameliorates alteration of gut microbiota and cognitive decline in diet-induced obese mice. Sci Rep 2017; 7:12203. [PMID: 28939875 PMCID: PMC5610180 DOI: 10.1038/s41598-017-12156-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 08/30/2017] [Indexed: 12/14/2022] Open
Abstract
A high-fat (HF) diet alters gut microbiota and promotes obesity related inflammation and cognitive impairment. Teasaponin is the major active component of tea, and has been associated with anti-inflammatory effects and improved microbiota composition. However, the potential protective effects of teasaponin, against HF diet-induced obesity and its associated alteration of gut microbiota, inflammation and cognitive decline have not been studied. In this study, obesity was induced in C57BL/6 J male mice by feeding a HF diet for 8 weeks, followed by treatment with oral teasaponin (0.5%) mixed in HF diet for a further 6 weeks. Teasaponin treatment prevented the HF diet-induced recognition memory impairment and improved neuroinflammation, gliosis and brain-derived neurotrophic factor (BDNF) deficits in the hippocampus. Furthermore, teasaponin attenuated the HF diet-induced endotoxemia, pro-inflammatory macrophage accumulation in the colon and gut microbiota alterations. Teasaponin also improved glucose tolerance and reduced body weight gain in HF diet-induced obese mice. The behavioral and neurochemical improvements suggest that teasaponin could limit unfavorable gut microbiota alterations and cognitive decline in HF diet-induced obesity.
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Ruhunuhewa I, Adjibade M, Andreeva VA, Galan P, Hercberg S, Assmann KE, Kesse-Guyot E. Prospective association between body mass index at midlife and healthy aging among French adults. Obesity (Silver Spring) 2017; 25:1254-1262. [PMID: 28494135 DOI: 10.1002/oby.21853] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/22/2017] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To assess the association between midlife body mass index (BMI) and healthy aging (HA) in the French SU.VI.MAX cohort. METHODS HA was assessed in 2007 to 2009 among 2,733 individuals, aged 45 to 60 years and free of diabetes, cardiovascular disease and cancer at baseline (1994-1995). HA was defined as not developing any major chronic disease, good physical and cognitive functioning, no limitations in instrumental activities of daily living, no depressive symptoms, no health-related limitations in social life, good overall self-perceived health, and no function-limiting pain. Associations between anthropometric indicators (measured in 1995-1996) and HA were assessed using robust-error-variance Poisson regression. RESULTS After adjustment for potential confounders, BMI (continuous) was negatively associated with HA: relative risk (RR) = 0.97 (95% confidence interval = 0.96-0.99). Moreover, the detrimental role of obesity (RRobesity vs. normal weight = 0.67 [0.51-0.88]) was substantially stronger than that of overweight (RRoverweight vs. normal weight = 0.91 [0.81-1.01]). Furthermore, while metabolically healthy individuals with overweight had a similar HA probability as metabolically healthy individuals with normal weight, metabolically unhealthy overweight individuals had a substantially lowered HA probability. CONCLUSIONS This study provides novel evidence that an elevated BMI at midlife may jeopardize the preservation of health during aging. Our results also highlight the importance of maintaining a healthy metabolic profile during midlife.
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Affiliation(s)
- Indunil Ruhunuhewa
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Sorbonne Paris Cité, INSERM (U1153), INRA (U1125), CNAM, COMUE Sorbonne Paris Cité, Bobigny, France
| | - Moufidath Adjibade
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Sorbonne Paris Cité, INSERM (U1153), INRA (U1125), CNAM, COMUE Sorbonne Paris Cité, Bobigny, France
| | - Valentina A Andreeva
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Sorbonne Paris Cité, INSERM (U1153), INRA (U1125), CNAM, COMUE Sorbonne Paris Cité, Bobigny, France
| | - Pilar Galan
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Sorbonne Paris Cité, INSERM (U1153), INRA (U1125), CNAM, COMUE Sorbonne Paris Cité, Bobigny, France
| | - Serge Hercberg
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Sorbonne Paris Cité, INSERM (U1153), INRA (U1125), CNAM, COMUE Sorbonne Paris Cité, Bobigny, France
- Département de Santé Publique, Hôpital Avicenne, Bobigny, France
| | - Karen E Assmann
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Sorbonne Paris Cité, INSERM (U1153), INRA (U1125), CNAM, COMUE Sorbonne Paris Cité, Bobigny, France
| | - Emmanuelle Kesse-Guyot
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Sorbonne Paris Cité, INSERM (U1153), INRA (U1125), CNAM, COMUE Sorbonne Paris Cité, Bobigny, France
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Xian H, Vasilopoulos T, Liu W, Hauger RL, Jacobson KC, Lyons MJ, Panizzon M, Reynolds CA, Vuoksimaa E, Kremen WS, Franz CE. Steeper change in body mass across four decades predicts poorer cardiometabolic outcomes at midlife. Obesity (Silver Spring) 2017; 25:773-780. [PMID: 28349665 PMCID: PMC5373489 DOI: 10.1002/oby.21791] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 12/19/2016] [Accepted: 01/04/2017] [Indexed: 01/02/2023]
Abstract
OBJECTIVE This study examined patterns of change in adiposity across four decades starting in young adulthood as well as associations between change and midlife cardiometabolic outcomes. METHODS BMI was assessed at ages 20, 40, 56, and 62 years in 977 male veterans from the Vietnam Era Twin Study of Aging. Age 62 (range 56-66) cardiometabolic outcomes included hypertension, diabetes, dyslipidemia, inflammation, and ischemic heart disease. Analyses included latent growth modeling (LGM), latent class growth modeling (LCGM), and logistic regression models. RESULTS Linear BMI slope was associated with all outcomes. Accelerated (quadratic) BMI slope was significantly associated with greater risk for hypertension, diabetes, dyslipidemia, and inflammation; odds ratios ranged from 1.93 (diabetes) to 3.15 (dyslipidemia). Initial BMI did not predict later outcomes. Linear slope contributed significant unique variance for diabetes and dyslipidemia even controlling for age 62 BMI. LCGM revealed three trajectories. Men with the relatively stable, lower BMI trajectory had significantly better outcomes than those with trajectories with accelerated increases, especially those including obesity. CONCLUSIONS How individuals reach late-midlife BMI is important. Steepness of BMI change across 40 years from young adulthood to late midlife, in addition to late-midlife BMI itself, was robustly associated with greater risk for poor cardiometabolic outcomes.
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Affiliation(s)
- Hong Xian
- Department of Biostatistics, St. Louis University, St. Louis, Missouri, USA
| | - Terrie Vasilopoulos
- Department of Anesthesiology, University of Florida, Gainesville, Florida, USA
| | - Weijian Liu
- Department of Biostatistics, St. Louis University, St. Louis, Missouri, USA
| | - Richard L Hauger
- Department of Psychiatry & Center for Behavior Genetics of Aging, University of California San Diego, La Jolla, California, USA
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, California, USA
| | - Kristen C Jacobson
- Department of Psychiatry & Behavioral Neuroscience, University of Chicago, Chicago, Illinois, USA
| | - Michael J Lyons
- Department of Psychological and Brain Sciences, Boston University, Boston, Massachusetts, USA
| | - Matthew Panizzon
- Department of Psychiatry & Center for Behavior Genetics of Aging, University of California San Diego, La Jolla, California, USA
| | - Chandra A Reynolds
- Department of Psychology, University of California Riverside, Riverside, California, USA
| | - Eero Vuoksimaa
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - William S Kremen
- Department of Psychiatry & Center for Behavior Genetics of Aging, University of California San Diego, La Jolla, California, USA
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, California, USA
| | - Carol E Franz
- Department of Psychiatry & Center for Behavior Genetics of Aging, University of California San Diego, La Jolla, California, USA
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LeBlanc ES, Rizzo JH, Pedula KL, Yaffe K, Ensrud KE, Cauley J, Cawthon PM, Cummings S, Hillier TA. Weight Trajectory over 20 Years and Likelihood of Mild Cognitive Impairment or Dementia Among Older Women. J Am Geriatr Soc 2017; 65:511-519. [PMID: 27991654 PMCID: PMC5685172 DOI: 10.1111/jgs.14552] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The association between weight change and cognition is controversial. We examined the association between 20-year weight change and cognitive function in late life. DESIGN Cohort study. SETTING Study of Osteoporotic Fractures (SOF). PARTICIPANTS One thousand two hundred eighty-nine older, community-dwelling women (mean baseline age 68 (65-81) and 88 (82-102) at cognitive testing). MEASUREMENTS Study of Osteoporotic Fractures participants had body weight measured repeatedly over 20 years (mean 8 weights). Adjudicated cognitive status was classified as normal (n = 775) or mild cognitive impairment (MCI)/dementia (n = 514) at Year 20. Logistic models were used to evaluate whether absolute weight change, rate of weight loss per year, presence of abrupt, unrecovered weight loss, and weight variability were associated with MCI or dementia. RESULTS Women with greater rate of weight loss over 20 years had increased chance of developing MCI or dementia. In age/education/clinic-adjusted "base" models, each 0.5 kg/yr decrease resulted in 30% increased odds of MCI/dementia (OR = 1.30 [95% CI: 1.14, 1.49]). After adjustment for age, education, clinic, depression, and walking speed, there was 17% (OR = 1.17 [95% CI: 1.02, 1.35]) increased odds of MCI/dementia for each 0.5 kg/yr decrease in weight. In base models, variability in weight was significant. Each 1% average deviation from each woman's predicted weight curve was associated with 11% increased odds of MCI/dementia (OR = 1.11 [95% CI: 1.04, 1.18]). The estimate was attenuated after full adjustment (OR = 1.06 [95% CI: 0.99, 1.14]). The presence of an abrupt weight decline was not associated with MCI/dementia. CONCLUSIONS Rate of weight loss over 20 years was associated with development of MCI or dementia in women surviving past 80 years, suggesting that nutritional status, social-environmental factors, and/or adipose tissue function and structure may affect cognitive function with aging.
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Affiliation(s)
- Erin S. LeBlanc
- Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
| | - Joanne H. Rizzo
- Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
| | - Kathryn L. Pedula
- Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
| | - Kristine Yaffe
- Departments of Psychiatry, Neurology, and Epidemiology and Biostatistics, University of California San Francisco School of Medicine and San Francisco VA Medical Center, San Francisco, CA, USA
| | - Kristine E. Ensrud
- Department of Medicine, University of Minnesota; University of Epidemiology & Community Health, University of Minnesota; Center for Chronic Disease Outcomes Research, VA Health Care System, Minneapolis, MN University of Minnesota, USA
| | - Jane Cauley
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Peggy M. Cawthon
- Research Institute, California Pacific Medical Center, San Francisco, CA, USA
| | - Steven Cummings
- Research Institute, California Pacific Medical Center, San Francisco, CA, USA
| | - Teresa A. Hillier
- Center for Health Research, Kaiser Permanente Northwest, Portland, OR, USA
- Center for Health Research, Kaiser Permanente Hawaii, Honolulu, HI, USA
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Morin JP, Rodríguez-Durán LF, Guzmán-Ramos K, Perez-Cruz C, Ferreira G, Diaz-Cintra S, Pacheco-López G. Palatable Hyper-Caloric Foods Impact on Neuronal Plasticity. Front Behav Neurosci 2017; 11:19. [PMID: 28261067 PMCID: PMC5306218 DOI: 10.3389/fnbeh.2017.00019] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 01/23/2017] [Indexed: 01/01/2023] Open
Abstract
Neural plasticity is an intrinsic and essential characteristic of the nervous system that allows animals “self-tuning” to adapt to their environment over their lifetime. Activity-dependent synaptic plasticity in the central nervous system is a form of neural plasticity that underlies learning and memory formation, as well as long-lasting, environmentally-induced maladaptive behaviors, such as drug addiction and overeating of palatable hyper-caloric (PHc) food. In western societies, the abundance of PHc foods has caused a dramatic increase in the incidence of overweight/obesity and related disorders. To this regard, it has been suggested that increased adiposity may be caused at least in part by behavioral changes in the affected individuals that are induced by the chronic consumption of PHc foods; some authors have even drawn attention to the similarity that exists between over-indulgent eating and drug addiction. Long-term misuse of certain dietary components has also been linked to chronic neuroimmune maladaptation that may predispose individuals to neurodegenerative conditions such as Alzheimer’s disease. In this review article, we discuss recent evidence that shows how consumption of PHc food can cause maladaptive neural plasticity that converts short-term ingestive drives into compulsive behaviors. We also discuss the neural mechanisms of how chronic consumption of PHc foods may alter brain function and lead to cognitive impairments, focusing on prenatal, childhood and adolescence as vulnerable neurodevelopmental stages to dietary environmental insults. Finally, we outline a societal agenda for harnessing permissive obesogenic environments.
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Affiliation(s)
- Jean-Pascal Morin
- Department of Health Sciences, Metropolitan Autonomous University (UAM)Lerma, Mexico; Institute of Medical Psychology and Behavioral Immunobiology, University Hospital Essen, University of Duisburg-EssenEssen, Germany
| | - Luis F Rodríguez-Durán
- Department of Health Sciences, Metropolitan Autonomous University (UAM)Lerma, Mexico; Laboratory of Neurobiology of Learning and Memory, Division of Research and Graduate Studies, Faculty of Psychology, National Autonomous University of Mexico (UNAM)Mexico City, Mexico
| | - Kioko Guzmán-Ramos
- Department of Health Sciences, Metropolitan Autonomous University (UAM) Lerma, Mexico
| | - Claudia Perez-Cruz
- Department of Pharmacology, Center of Research and Advance Studies (CINVESTAV) Mexico City, Mexico
| | - Guillaume Ferreira
- Laboratory of Nutrition and Integrative Neurobiology, National Institute of Agricultural Research (INRA), UMR 1286Bordeaux, France; Laboratory of Nutrition and Integrative Neurobiology, Université de BordeauxBordeaux, France
| | - Sofia Diaz-Cintra
- Institute of Neurobiology, National Autonomous University of Mexico (UNAM) Queretaro, Mexico
| | - Gustavo Pacheco-López
- Department of Health Sciences, Metropolitan Autonomous University (UAM)Lerma, Mexico; Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) ZurichSchwerzenbach, Switzerland
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Banach M, Rizzo M, Nikolic D, Howard G, Howard V, Mikhailidis D. Intensive LDL-cholesterol lowering therapy and neurocognitive function. Pharmacol Ther 2017; 170:181-191. [DOI: 10.1016/j.pharmthera.2016.11.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Deckers K, Van Boxtel MPJ, Verhey FRJ, Köhler S. Obesity and Cognitive Decline in Adults: Effect of Methodological Choices and Confounding by Age in a Longitudinal Study. J Nutr Health Aging 2017; 21:546-553. [PMID: 28448085 DOI: 10.1007/s12603-016-0757-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND AND OBJECTIVES Obesity has been associated with increased risk of cognitive impairment or dementia, but recent findings are contradictory, possibly due to methodological differences. The present study tries to clarify these inconsistencies by following the cognitive trajectories of individuals with obesity over 12 years and studying the effect of obesity status (obesity at baseline versus incident obesity at follow-up), chronicity, definition, potential confounding (e.g. age, cardiovascular factors), and non-linear associations. DESIGN Longitudinal study with 12 years follow-up. SETTING Community based. PARTICIPANTS 1,807 cognitively healthy individuals (aged 24-83) from the Maastricht Aging Study (1992-2004). MEASUREMENTS Memory, executive function and processing speed were assessed at baseline and at 6- and 12-year follow-up. Obesity was defined as having a body mass index (BMI) of ≥ 30.0 kg/m2 or waist circumference (WC) of > 102 cm for men and > 88 cm for women. RESULTS At baseline, 545 persons were obese (BMI: 329 (18%); WC: 494 (27%); both: 278 (15%). They showed faster decline in memory, executive function, and processing speed. Chronic obese showed less widespread impairment than those who regained normal weight. Associations across cognitive domains were weaker for obesity defined by BMI than for WC. At follow-up, 190 developed obesity, and they performed worse on executive function at baseline, but showed less decline compared with participants with normal weight. Yet, age-stratification and post-hoc analyses showed that most of these associations were confounded by age. CONCLUSIONS This study shows that the association between obesity and cognitive decline was confounded by the effect of age on rate of decline. Future studies should take this into account.
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Affiliation(s)
- K Deckers
- Kay Deckers, MSc, Maastricht University, School for Mental Health and Neuroscience, Department of Psychiatry and Neuropsychology, P.O. Box 616, 6200 MD Maastricht, the Netherlands, T: +31-43-3884098, F: +31-43-3884092, E:
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Wang S, Huang XF, Zhang P, Wang H, Zhang Q, Yu S, Yu Y. Chronic rhein treatment improves recognition memory in high-fat diet-induced obese male mice. J Nutr Biochem 2016; 36:42-50. [PMID: 27567591 DOI: 10.1016/j.jnutbio.2016.07.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 05/27/2016] [Accepted: 07/05/2016] [Indexed: 01/16/2023]
Abstract
High-fat (HF) diet modulates gut microbiota and increases plasma concentration of lipopolysaccharide (LPS) which is associated with obesity and its related low-grade inflammation and cognitive decline. Rhein is the main ingredient of the rhubarb plant which has been used as an anti-inflammatory agent for several millennia. However, the potential effects of rhein against HF diet-induced obesity and its associated alteration of gut microbiota, inflammation and cognitive decline have not been studied. In this study, C57BL/6J male mice were fed an HF diet for 8 weeks to induce obesity, and then treated with oral rhein (120 mg/kg body weight/day in HF diet) for a further 6 weeks. Chronic rhein treatment prevented the HF diet-induced recognition memory impairment assessed by the novel object recognition test, neuroinflammation and brain-derived neurotrophic factor (BDNF) deficits in the perirhinal cortex. Furthermore, rhein inhibited the HF diet-induced increased plasma LPS level and the proinflammatory macrophage accumulation in the colon and alteration of microbiota, including decreasing Bacteroides-Prevotella spp. and Desulfovibrios spp. DNA and increasing Bifidobacterium spp. and Lactobacillus spp. DNA. Moreover, rhein also reduced body weight and improved glucose tolerance in HF diet-induced obese mice. In conclusion, rhein improved recognition memory and prevented obesity in mice on a chronic HF diet. These beneficial effects occur via the modulation of microbiota, hypoendotoxinemia, inhibition of macrophage accumulation, anti-neuroinflammation and the improvement of BDNF expression. Therefore, supplementation with rhein-enriched food or herbal medicine could be beneficial as a preventive strategy for chronic HF diet-induced cognitive decline, microbiota alteration and neuroinflammation.
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Affiliation(s)
- Sen Wang
- School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; Department of Endocrinology and Metabolism, Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning 110032, China
| | - Xu-Feng Huang
- School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; Schizophrenia Research Institute, NeuRA, Barker Street Randwick, Sydney, NSW 2031, Australia
| | - Peng Zhang
- School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; Department of Pathogen Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou, Jiangsu 221004, China
| | - Hongqin Wang
- School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; Schizophrenia Research Institute, NeuRA, Barker Street Randwick, Sydney, NSW 2031, Australia
| | - Qingsheng Zhang
- School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Shijia Yu
- School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; Department of Endocrinology and Metabolism, Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning 110032, China.
| | - Yinghua Yu
- School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; Schizophrenia Research Institute, NeuRA, Barker Street Randwick, Sydney, NSW 2031, Australia.
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Scarpina F, Migliorati D, Marzullo P, Mauro A, Scacchi M, Costantini M. Altered multisensory temporal integration in obesity. Sci Rep 2016; 6:28382. [PMID: 27324727 PMCID: PMC4914987 DOI: 10.1038/srep28382] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 06/03/2016] [Indexed: 12/13/2022] Open
Abstract
Eating is a multisensory behavior. The act of placing food in the mouth provides us with a variety of sensory information, including gustatory, olfactory, somatosensory, visual, and auditory. Evidence suggests altered eating behavior in obesity. Nonetheless, multisensory integration in obesity has been scantily investigated so far. Starting from this gap in the literature, we seek to provide the first comprehensive investigation of multisensory integration in obesity. Twenty male obese participants and twenty male healthy-weight participants took part in the study aimed at describing the multisensory temporal binding window (TBW). The TBW is defined as the range of stimulus onset asynchrony in which multiple sensory inputs have a high probability of being integrated. To investigate possible multisensory temporal processing deficits in obesity, we investigated performance in two multisensory audiovisual temporal tasks, namely simultaneity judgment and temporal order judgment. Results showed a wider TBW in obese participants as compared to healthy-weight controls. This holds true for both the simultaneity judgment and the temporal order judgment tasks. An explanatory hypothesis would regard the effect of metabolic alterations and low-grade inflammatory state, clinically observed in obesity, on the temporal organization of brain ongoing activity, which one of the neural mechanisms enabling multisensory integration.
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Affiliation(s)
- Federica Scarpina
- "Rita Levi Montalcini" Department of Neuroscience, University of Turin, Turin, Italy.,I.R.C.C.S. Istituto Auxologico Italiano Ospedale San Giuseppe, Piancavallo, Italy
| | - Daniele Migliorati
- Department of Neuroscience, Imaging and Clinical Science, University G. d'Annunzio, Chieti, Italy
| | - Paolo Marzullo
- I.R.C.C.S. Istituto Auxologico Italiano Ospedale San Giuseppe, Piancavallo, Italy.,Department of Translational Medicine, Università del Piemonte Orientale 'A. Avogadro', Novara, Italy
| | - Alessandro Mauro
- "Rita Levi Montalcini" Department of Neuroscience, University of Turin, Turin, Italy.,I.R.C.C.S. Istituto Auxologico Italiano Ospedale San Giuseppe, Piancavallo, Italy
| | - Massimo Scacchi
- I.R.C.C.S. Istituto Auxologico Italiano Ospedale San Giuseppe, Piancavallo, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Marcello Costantini
- Department of Neuroscience, Imaging and Clinical Science, University G. d'Annunzio, Chieti, Italy.,Centre for Brain Science, Department of Psychology, University of Essex, UK
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De Lorenzo A, Soldati L, Sarlo F, Calvani M, Di Lorenzo N, Di Renzo L. New obesity classification criteria as a tool for bariatric surgery indication. World J Gastroenterol 2016; 22:681-703. [PMID: 26811617 PMCID: PMC4716069 DOI: 10.3748/wjg.v22.i2.681] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 10/05/2015] [Accepted: 12/01/2015] [Indexed: 02/06/2023] Open
Abstract
Obesity plays relevant pathophysiological role in the development of health problems, arising as result of complex interaction of genetic, nutritional, and metabolic factors. Due to the role of adipose tissue in lipid and glucose metabolism, and low grade inflammation, it is necessary to classify obesity on the basis of body fat composition and distribution, rather than the simply increase of body weight, and the Body Mass Index. The new term of adiposopathy (‘‘sick fat’’) clearly defines the pathogenic role of adipose tissue. Four phenotypes of obese individuals have been described: (1) normal weight obese (NWO); (2) metabolically obese normal weight; (3) metabolically healthy obese; and (4) metabolically unhealthy obese or “at risk” obese. Moreover, sarcopenic obesity has been related to all the phenotypes. The category of normal weight lean, represented by metabolically healthy normal weight has been classified to distinguish from NWO. It is crucial to recommend a bariatric surgery taking into account adiposopathy and sick fat that occurs with the expansion of fat mass, changing the inflammatory and metabolic profile of the patient. Body fat percentage and genetic polymorphism have to be evaluated to personalize the best bariatric surgery intervention.
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Obesity Reduces Cognitive and Motor Functions across the Lifespan. Neural Plast 2016; 2016:2473081. [PMID: 26881095 PMCID: PMC4737453 DOI: 10.1155/2016/2473081] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/15/2015] [Indexed: 12/11/2022] Open
Abstract
Due to a sedentary lifestyle, more and more people are becoming obese nowadays. In addition to health-related problems, obesity can also impair cognition and motor performance. Previous results have shown that obesity mainly affects cognition and motor behaviors through altering brain functions and musculoskeletal system, respectively. Many factors, such as insulin/leptin dysregulation and inflammation, mediate the effect of obesity and cognition and motor behaviors. Substantial evidence has suggested exercise to be an effective way to improve obesity and related cognitive and motor dysfunctions. This paper aims to discuss the association of obesity with cognition and motor behaviors and its underlying mechanisms. Following this, mechanisms of exercise to improve obesity-related dysfunctions are described. Finally, implications and future research direction are raised.
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Guo YR, Hsu YH, Liang A, Lu WJ, Wu CH, Lee HC, Huang SY. n-3 Polyunsaturated fatty acids ameliorate cognitive age-related impairments and depressive behaviour in unchallenged aged prediabetic rats. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.09.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Yu Y, Wu Y, Szabo A, Wang S, Yu S, Wang Q, Huang XF. Teasaponin improves leptin sensitivity in the prefrontal cortex of obese mice. Mol Nutr Food Res 2015; 59:2371-82. [DOI: 10.1002/mnfr.201500205] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 08/11/2015] [Accepted: 08/13/2015] [Indexed: 12/23/2022]
Affiliation(s)
- Yinghua Yu
- School of Medicine; University of Wollongong and Illawarra Health and Medical Research Institute; NSW Australia
- Schizophrenia Research Institute (SRI); Sydney NSW Australia
| | - Yizhen Wu
- School of Medicine; University of Wollongong and Illawarra Health and Medical Research Institute; NSW Australia
| | - Alexander Szabo
- School of Medicine; University of Wollongong and Illawarra Health and Medical Research Institute; NSW Australia
- ANSTO Life Sciences; Australian Nuclear Science and Technology Organisation; Sydney Australia
| | - Sen Wang
- School of Medicine; University of Wollongong and Illawarra Health and Medical Research Institute; NSW Australia
- Department of Endocrinology and Metabolism; Affiliated Hospital of Liaoning University of Traditional Chinese Medicine; Shenyang Liaoning China
| | - Shijia Yu
- School of Medicine; University of Wollongong and Illawarra Health and Medical Research Institute; NSW Australia
- Department of Endocrinology and Metabolism; Affiliated Hospital of Liaoning University of Traditional Chinese Medicine; Shenyang Liaoning China
| | - Qing Wang
- Department of Neurology; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou Guangdong P. R. China
| | - Xu-Feng Huang
- School of Medicine; University of Wollongong and Illawarra Health and Medical Research Institute; NSW Australia
- Schizophrenia Research Institute (SRI); Sydney NSW Australia
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Tikhonoff V, Casiglia E, Guidotti F, Giordano N, Martini B, Mazza A, Spinella P, Palatini P. Body fat and the cognitive pattern: A population-based study. Obesity (Silver Spring) 2015; 23:1502-10. [PMID: 26110893 DOI: 10.1002/oby.21114] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 03/13/2015] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The relationship between body fatness and cognitive pattern at a population level was investigated. METHODS Among 500 unselected subjects from the general population, the role of body mass index (BMI) and body fat mass (BFM) on a mini-mental state examination (MMSE) and on a battery of paper and pencil neuropsychological tests was analyzed. Multiple linear regressions, accounting for potential confounders, were used. RESULTS In fully adjusted models, MMSE (coefficient +0.027, 95% confidence intervals, 0.017-0.177), the clock drawing test (+0.141, 0.053-0.226), and the trail making test A (+1.542, 0.478-2.607) were positively associated with BMI. Adding BFM to the models, no associations were observed. The tests were also positively associated with BFM (+0.056, 0.021-0.091; +0.063, 0.025-0.101; +0.592, 0.107-1.077; respectively). At analysis of covariance, the same tests were significantly better performed over 29.4 kg m(-2) of BMI. After adding BFM as further confounder, all differences in performance across BMI were no longer significant. The three tests were better performed over 34.6 kg of BFM. CONCLUSIONS Higher BMI and particularly higher BFM are positively associated with better performance at the cognitive tasks exploring selective attention and executive functions.
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Affiliation(s)
- Valérie Tikhonoff
- Department of Medicine, University of Padova, Padova, Italy
- MRC Unit for Lifelong Health and Ageing at UCL, University College of London, London, UK
| | | | | | | | - Bortolo Martini
- Department of Cardiology, Hospital of Santorso, Thiene, Italy
| | - Alberto Mazza
- Department of Medicine, Hospital of Rovigo, Rovigo, Italy
| | - Paolo Spinella
- Department of Medicine, University of Padova, Padova, Italy
| | - Paolo Palatini
- Department of Medicine, University of Padova, Padova, Italy
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Abstract
OBJECTIVES This review focuses on the relationship between obesity and aging and how these interact to affect cognitive function. The topics covered are guided by the Scaffolding Theory of Aging and Cognition (STAC [Park and Reuter-Lorenz. Annu Rev Psychol 2009;60:173-96]-a conceptual model designed to relate brain structure and function to one's level of cognitive ability. METHODS The initial literature search was focused on normal aging and was guided by the key words, "aging, cognition, and obesity" in PubMed. In a second search, we added key words related to neuropathology including words "Alzheimer's disease," "vascular dementia," and "mild cognitive impairment." RESULTS The data suggest that being overweight or obese in midlife may be more detrimental to subsequent age-related cognitive decline than being overweight or obese at later stages of the life span. These effects are likely mediated by the accelerated effects obesity has on the integrity of neural structures, including both gray and white matter. Further epidemiological studies have provided evidence that obesity in midlife is linked to an increased risk for Alzheimer's disease and vascular dementia, most likely via an increased accumulation of Alzheimer's disease pathology. CONCLUSIONS Although it is clear that obesity negatively affects cognition, more work is needed to better understand how aging plays a role and how brain structure and brain function might mediate the relationship of obesity and age on cognition. Guided by the STAC and the STAC-R models, we provide a roadmap for future investigations of the role of obesity on cognition across the life span.
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Affiliation(s)
- Gérard N. Bischof
- Center for Vital Longevity, School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX 75235
| | - Denise C. Park
- Center for Vital Longevity, School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX 75235
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Daulatzai MA. “Boomerang Neuropathology” of Late-Onset Alzheimer’s Disease is Shrouded in Harmful “BDDS”: Breathing, Diet, Drinking, and Sleep During Aging. Neurotox Res 2015; 28:55-93. [DOI: 10.1007/s12640-015-9528-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Revised: 04/03/2015] [Accepted: 04/03/2015] [Indexed: 12/12/2022]
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Yang HJ, Kwon DY, Kim MJ, Kang S, Moon NR, Daily JW, Park S. Red peppers with moderate and severe pungency prevent the memory deficit and hepatic insulin resistance in diabetic rats with Alzheimer's disease. Nutr Metab (Lond) 2015; 12:9. [PMID: 25755673 PMCID: PMC4353669 DOI: 10.1186/s12986-015-0005-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Accepted: 02/12/2015] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Dementia induced by β-amyloid accumulation impairs peripheral glucose homeostasis, but red pepper extract improves glucose homeostasis. We therefore evaluated whether long-term oral consumption of different red pepper extracts improves cognitive dysfunction and glucose homeostasis in type 2 diabetic rats with β-amyloid-induced dementia. METHODS Male diabetic rats received hippocampal CA1 infusions of β-amyloid (25-35) (AD) or β-amyloid (35-25, non-plaque forming), at a rate of 3.6 nmol/day for 14 days (Non-AD). AD rats were divided into four dietary groups receiving either 1% lyophilized 70% ethanol extracts of either low, moderate and severe pungency red peppers (AD-LP, AD-MP, and AD-SP) or 1% dextrin (AD-CON) in Western diets (43% energy as fat). RESULTS The ascending order of control < LSP < MSP and SSP potentiated the phosphorylation of CREB and GSK and inhibited Tau phosphorylation in the hippocampus which in turn inhibited β-amyloid accumulation. The inhibition by MP and SP reduced the memory deficit measured by passive avoidance test and water maze test. Furthermore, the accumulation of β-amyloid induced glucose intolerance, although serum insulin levels were elevated during the late phase of oral glucose tolerance test (OGTT). All of the red pepper extracts prevented the glucose intolerance in AD rats. Consistent with OGTT results, during euglycemic hyperinulinemic clamp glucose infusion rates were lower in AD-CON than Non-AD-CON with no difference in whole body glucose uptake. Hepatic glucose output at the hyperinsulinemic state was increased in AD-CON. β-amyloid accumulation exacerbated hepatic insulin resistance, but all red pepper extract treatments reversed the insulin resistance in AD rats. CONCLUSIONS The extracts of moderate and severe red peppers were found to prevent the memory deficit and exacerbation of insulin resistance by blocking tau phosphorylation and β-amyloid accumulation in diabetic rats with experimentally induced Alzheimer's-like dementia. These results suggest that red pepper consumption might be an effective intervention for preventing age-related memory deficit.
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Affiliation(s)
- Hye Jeong Yang
- />Division of Metabolism and Functionality Research, Korean Food Research Institutes, Sungnam, South Korea
| | - Dae Young Kwon
- />Division of Metabolism and Functionality Research, Korean Food Research Institutes, Sungnam, South Korea
| | - Min Jung Kim
- />Division of Metabolism and Functionality Research, Korean Food Research Institutes, Sungnam, South Korea
| | - Suna Kang
- />Department of Food and Nutrition, Obesity/Diabetes Research Center, Hoseo University, 165 Sechul-Ri, BaeBang-Yup, Asan-Si, ChungNam-Do 336-795 South Korea
| | - Na Rang Moon
- />Department of Food and Nutrition, Obesity/Diabetes Research Center, Hoseo University, 165 Sechul-Ri, BaeBang-Yup, Asan-Si, ChungNam-Do 336-795 South Korea
| | | | - Sunmin Park
- />Department of Food and Nutrition, Obesity/Diabetes Research Center, Hoseo University, 165 Sechul-Ri, BaeBang-Yup, Asan-Si, ChungNam-Do 336-795 South Korea
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Hamer M, Stamatakis E. Prospective study of sedentary behavior, risk of depression, and cognitive impairment. Med Sci Sports Exerc 2015; 46:718-23. [PMID: 24121248 DOI: 10.1249/mss.0000000000000156] [Citation(s) in RCA: 160] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Modern-day lifestyles are characterized by large amounts of prolonged sedentary activities, which may pose a risk to health in its own right, although little is known about their effects on mental health. We examined the association between several types of common sedentary behaviors (TV viewing, Internet use, reading) and different aspects of mental health. METHODS We conducted a 2-yr follow-up of 6359 (age 64.9 ± 9.1 yr) men and women from the English Longitudinal Study of Ageing, a cohort of community-dwelling older adults. Self-reported TV viewing time, reading, and use of the Internet was assessed at baseline. Mental health was assessed using the eight-item Centre of Epidemiological Studies Depression scale to measure depressive symptoms and neuropsychological tests of memory and verbal fluency to assess cognitive function. RESULTS At baseline, TV viewing time (≥ 6 vs. <2 h · d(-1)) was associated with higher depressive symptoms (coefficient = 0.49, 95% confidence interval [CI] = 0.63 to 0.35) and poorer global cognitive function (coefficient = -1.16, 95% CI = -1.00 to -1.31). Conversely, participants using the Internet reported lower depressive symptoms (coefficient = -0.58, 95% CI = -0.50 to -0.66) and higher global cognitive function (coefficient = 1.27, 95% CI = 1.37 to 1.18). There was no association between any sedentary behaviors at baseline and change in mental health measures over follow-up, suggesting that the difference in scores persisted but did not increase over time. CONCLUSIONS Some, but not all sedentary behaviors, are linked to adverse mental health. It is likely that these associations are being driven by the contrasting environmental and social contexts in which they occur.
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Affiliation(s)
- Mark Hamer
- 1Population Health Domain Physical Activity Research Group, Department of Epidemiology and Public Health, University College London, London, UNITED KINGDOM; 2School for Physiology, Nutrition and Consumer Sciences, North-West University, Potchefstroom, SOUTH AFRICA; and 3Prevention Research Collaboration, School of Public Health, University of Sydney, Sydney, AUSTRALIA
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Fabbrini E, Yoshino J, Yoshino M, Magkos F, Tiemann Luecking C, Samovski D, Fraterrigo G, Okunade AL, Patterson BW, Klein S. Metabolically normal obese people are protected from adverse effects following weight gain. J Clin Invest 2015; 125:787-95. [PMID: 25555214 DOI: 10.1172/jci78425] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 11/20/2014] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND. Obesity is associated with insulin resistance and increased intrahepatic triglyceride (IHTG) content, both of which are key risk factors for diabetes and cardiovascular disease. However, a subset of obese people does not develop these metabolic complications. Here, we tested the hypothesis that people defined by IHTG content and insulin sensitivity as "metabolically normal obese" (MNO), but not those defined as "metabolically abnormal obese" (MAO), are protected from the adverse metabolic effects of weight gain. METHODS. Body composition, multiorgan insulin sensitivity, VLDL apolipoprotein B100 (apoB100) kinetics, and global transcriptional profile in adipose tissue were evaluated before and after moderate (~6%) weight gain in MNO (n = 12) and MAO (n = 8) subjects with a mean BMI of 36 ± 4 kg/m2 who were matched for BMI and fat mass. RESULTS. Although the increase in body weight and fat mass was the same in both groups, hepatic, skeletal muscle, and adipose tissue insulin sensitivity deteriorated, and VLDL apoB100 concentrations and secretion rates increased in MAO, but not MNO, subjects. Moreover, biological pathways and genes associated with adipose tissue lipogenesis increased in MNO, but not MAO, subjects. CONCLUSIONS. These data demonstrate that MNO people are resistant, whereas MAO people are predisposed, to the adverse metabolic effects of moderate weight gain and that increased adipose tissue capacity for lipogenesis might help protect MNO people from weight gain-induced metabolic dysfunction. TRIAL REGISTRATION. ClinicalTrials.gov NCT01184170. FUNDING. This work was supported by NIH grants UL1 RR024992 (Clinical Translational Science Award), DK 56341 (Nutrition and Obesity Research Center), DK 37948 and DK 20579 (Diabetes Center Grant), and UL1 TR000450 (KL2 Award); a Central Society for Clinical and Translational Research Early Career Development Award; and by grants from the Longer Life Foundation and the Kilo Foundation.
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Backeström A, Eriksson S, Nilsson LG, Olsson T, Rolandsson O. Glucose but not insulin or insulin resistance is associated with memory performance in middle-aged non-diabetic women: a cross sectional study. Diabetol Metab Syndr 2015; 7:20. [PMID: 25798199 PMCID: PMC4367824 DOI: 10.1186/s13098-015-0014-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/23/2015] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Elevated concentrations of plasma glucose appear to play a role in memory impairment, and it has been suggested that insulin might also have a negative effect on cognitive function. Our aim was to study whether glucose, insulin or insulin resistance are associated with episodic or semantic memory in a non-diabetic and non-demented population. METHODS We linked and matched two population-based data sets identifying 291 participants (127 men and 164 women, mean age of 50.7 ± 8.0 years). Episodic and semantic memory functions were tested, and fasting plasma insulin, fasting plasma glucose, and 2-hour glucose were analysed along with other potential influencing factors on memory function. Since men and women display different results on memory functions they were analysed separately. Insulin resistance was calculated using the HOMA-IR method. RESULTS A higher fasting plasma glucose concentration was associated with lower episodic memory in women (r = -0.08, 95% CI -0.14; -0.01), but not in men. Plasma insulin levels and insulin resistance were not associated with episodic or semantic memory in women or in men after adjustments for age, fasting glucose, 2-hour glucose, BMI, education, smoking, cardiovascular disease, hypertension, cholesterol, and physical activity. CONCLUSIONS This indicates that fasting glucose but not insulin, might have impact on episodic memory in middle-aged women.
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Affiliation(s)
- Anna Backeström
- />Department of Public Health and Clinical Medicine, Family Medicine, Umeå University, S-901 87 Umeå, Sweden
| | - Sture Eriksson
- />Department of Community Medicine and Rehabilitation, Geriatric Medicine, Umeå University, S-901 85 Umeå, Sweden
| | - Lars-Göran Nilsson
- />Department of Psychology, Stockholm University, S-106 91 Stockholm, Sweden
| | - Tommy Olsson
- />Department of Public Health and Clinical Medicine, Medicine, Umeå University, S-901 87 Umeå, Sweden
| | - Olov Rolandsson
- />Department of Public Health and Clinical Medicine, Family Medicine, Umeå University, S-901 87 Umeå, Sweden
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