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Flores AC, Jensen GL, Mitchell DC, Na M, Wood GC, Still CD, Gao X. Prospective Study of Diet Quality and the Risk of Dementia in the Oldest Old. Nutrients 2023; 15:nu15051282. [PMID: 36904280 PMCID: PMC10005581 DOI: 10.3390/nu15051282] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
This study examined the associations between overall diet quality and the risk of dementia in a rural cohort among the oldest old. Included in this prospective cohort study were 2232 participants aged ≥ 80 years and dementia-free at the baseline according to the Geisinger Rural Aging Study (GRAS), a longitudinal cohort in rural Pennsylvania. In 2009, diet quality was assessed by a validated dietary screening tool (DST). Incident cases of dementia during 2009-2021 were identified using diagnosis codes. This approach was validated by a review of electronic health records. Associations between diet quality scores and the incidence of dementia were estimated using the Cox proportional hazards models, adjusted for potential confounders. Across a mean of 6.90 years of follow-up, we identified 408 incident cases of all-cause dementia. Having a higher diet quality was not significantly associated with a lower risk for incidents of all-cause dementia (adjusted HR for the highest compared with the lowest tertile: 1.01, 95% CI: 0.79, 1.29, P-trend = 0.95). Similarly, we did not observe a significant association between diet quality and altered risks of Alzheimer's disease and other forms of dementia. Overall, having a higher diet quality was not significantly associated with a lower risk of dementia among the oldest old during the full follow-up.
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Affiliation(s)
- Ashley C. Flores
- Department of Nutritional Sciences, The Pennsylvania State University, State College, PA 16801, USA
| | - Gordon L. Jensen
- Larner College of Medicine, University of Vermont, Burlington, VT 05405, USA
| | - Diane C. Mitchell
- Department of Nutritional Sciences, The Pennsylvania State University, State College, PA 16801, USA
| | - Muzi Na
- Department of Nutritional Sciences, The Pennsylvania State University, State College, PA 16801, USA
| | - G. Craig Wood
- Obesity Institute, Geisinger Health System, Danville, PA 17822, USA
| | | | - Xiang Gao
- Department of Nutritional Sciences, The Pennsylvania State University, State College, PA 16801, USA
- School of Public Health, Institute of Nutrition, Fudan University, Shanghai 200437, China
- Correspondence:
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Franco R, Lillo A, Navarro G, Reyes-Resina I. The adenosine A 2A receptor is a therapeutic target in neurological, heart and oncogenic diseases. Expert Opin Ther Targets 2022; 26:791-800. [DOI: 10.1080/14728222.2022.2136570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Rafael Franco
- CiberNed, Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain
- Molecular Neurobiology laboratory, Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
- School of Chemistry, Universitat de Barcelona, Barcelona, Spain
| | - Alejandro Lillo
- CiberNed, Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain
- Molecular Neuropharmacology laboratory, Department of Biochemistry and Physiology. School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain
| | - Gemma Navarro
- CiberNed, Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain
- Molecular Neuropharmacology laboratory, Department of Biochemistry and Physiology. School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain
| | - Irene Reyes-Resina
- CiberNed, Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain
- School of Chemistry, Universitat de Barcelona, Barcelona, Spain
- Molecular Neuropharmacology laboratory, Department of Biochemistry and Physiology. School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain
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Sex Differences in Metabolic Indices and Chronic Neuroinflammation in Response to Prolonged High-Fat Diet in ApoE4 Knock-In Mice. Int J Mol Sci 2022; 23:ijms23073921. [PMID: 35409283 PMCID: PMC8999114 DOI: 10.3390/ijms23073921] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/22/2022] [Accepted: 03/30/2022] [Indexed: 12/15/2022] Open
Abstract
Late-onset Alzheimer’s disease (LOAD) likely results from combinations of risk factors that include both genetic predisposition and modifiable lifestyle factors. The E4 allele of apolipoprotein E (ApoE) is the most significant genetic risk factor for LOAD. A Western-pattern diet (WD) has been shown to strongly increase the risk of cardiovascular disease and diabetes, conditions which have been strongly linked to an increased risk for developing AD. Little is known about how the WD may contribute to, or enhance, the increased risk presented by possession of the ApoE4 allele. To model this interaction over the course of a lifetime, we exposed male and female homozygote ApoE4 knock-in mice and wild-type controls to nine months of a high-fat WD or standard chow diet. At eleven months of age, the mice were tested for glucose tolerance and then for general activity and spatial learning and memory. Postmortem analysis of liver function and neuroinflammation in the brain was also assessed. Our results suggest that behavior impairments resulted from the convergence of interacting metabolic alterations, made worse in a male ApoE4 mice group who also showed liver dysfunction, leading to a higher level of inflammatory cytokines in the brain. Interestingly, female ApoE4 mice on a WD revealed impairments in spatial learning and memory without the observed liver dysfunction or increase in inflammatory markers in the brain. These results suggest multiple direct and indirect pathways through which ApoE and diet-related factors interact. The striking sex difference in markers of chronic neuroinflammation in male ApoE4 mice fed the high-fat WD suggests a specific mechanism of interaction conferring significant enhanced LOAD risk for humans with the ApoE4 allele, which may differ between sexes. Additionally, our results suggest researchers exercise caution when designing and interpreting results of experiments employing a WD, being careful not to assume a WD impacts both sexes by the same mechanisms.
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Tuomilehto J. How to prevent non-communicable diseases? - A continuous need for a better understanding of the role of nutritional factors through scientific research. Eur J Clin Nutr 2021; 76:1357-1363. [PMID: 34711929 PMCID: PMC9550625 DOI: 10.1038/s41430-021-00997-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 07/21/2021] [Accepted: 08/04/2021] [Indexed: 11/09/2022]
Affiliation(s)
- Jaakko Tuomilehto
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki, Finland. .,Department of Public Health, University of Helsinki, Helsinki, Finland. .,Saudi Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia. .,Department of International Health, National School of Public Health, Instituto de Salud Carlos III, Madrid, Spain.
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Liu YH, Gao X, Na M, Kris-Etherton PM, Mitchell DC, Jensen GL. Dietary Pattern, Diet Quality, and Dementia: A Systematic Review and Meta-Analysis of Prospective Cohort Studies. J Alzheimers Dis 2021; 78:151-168. [PMID: 32955461 DOI: 10.3233/jad-200499] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Diet is an important lifestyle factor that may prevent or slow the onset and progression of neurodegeneration. Some, but not all, recent studies have suggested that adherence to a healthy dietary pattern may be associated with reduced risk of dementia. OBJECTIVE In this meta-analysis, we systematically examined the associations between overall dietary patterns, assessed a priori and a posteriori, and risk of dementia. METHODS We systematically searched PubMed, Web of Science, and the Cumulative Index for Nursing and Allied Health databases from January 1, 1981 to September 11, 2019. Prospective studies published in English were included. Random-effects model was used to calculate the pooled risk ratios and 95% confidence intervals (CIs). RESULTS Sixteen research articles were identified in the systematic review and 12 research articles including 66,930 participants were further included for the meta-analysis. Adherence to high diet quality or a healthy dietary pattern was significantly associated with lower risk of overall dementia (pooled risk ratio = 0.82; 95% CI: 0.70, 0.95; n = 12) and Alzheimer's disease (pooled risk ratio = 0.61; 95% CI: 0.47, 0.79; n = 6) relative to those with low diet quality or an unhealthy dietary pattern. Subgroup analyses stratified by age, sex, follow-up duration, diet quality assessment approach, study location, and study quality generated similar results. CONCLUSION Adherence to a healthy dietary pattern was associated with lower risk of overall dementia. Further randomized controlled trials are needed to provide additional evidence about the role of a healthy diet on the development and progression of dementia.
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Affiliation(s)
- Yi-Hsuan Liu
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Xiang Gao
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Muzi Na
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Penny M Kris-Etherton
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Diane C Mitchell
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Gordon L Jensen
- Larner College of Medicine, University of Vermont, Burlington, VT, USA
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Franco R, Lillo A, Rivas-Santisteban R, Reyes-Resina I, Navarro G. Microglial Adenosine Receptors: From Preconditioning to Modulating the M1/M2 Balance in Activated Cells. Cells 2021; 10:1124. [PMID: 34066933 PMCID: PMC8148598 DOI: 10.3390/cells10051124] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/19/2021] [Accepted: 05/01/2021] [Indexed: 12/14/2022] Open
Abstract
Neuronal survival depends on the glia, that is, on the astroglial and microglial support. Neurons die and microglia are activated not only in neurodegenerative diseases but also in physiological aging. Activated microglia, once considered harmful, express two main phenotypes: the pro-inflammatory or M1, and the neuroprotective or M2. When neuroinflammation, i.e., microglial activation occurs, it is important to achieve a good M1/M2 balance, i.e., at some point M1 microglia must be skewed into M2 cells to impede chronic inflammation and to afford neuronal survival. G protein-coupled receptors in general and adenosine receptors in particular are potential targets for increasing the number of M2 cells. This article describes the mechanisms underlying microglial activation and analyzes whether these cells exposed to a first damaging event may be ready to be preconditioned to better react to exposure to more damaging events. Adenosine receptors are relevant due to their participation in preconditioning. They can also be overexpressed in activated microglial cells. The potential of adenosine receptors and complexes formed by adenosine receptors and cannabinoids as therapeutic targets to provide microglia-mediated neuroprotection is here discussed.
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Affiliation(s)
- Rafael Franco
- CiberNed, Network Research Center, Neurodegenerative Diseases, Spanish National Health Institute Carlos III, 28034 Madrid, Spain;
- Department of Biochemistry and Molecular Biomedicine, University of Barcelona, 08028 Barcelona, Spain
| | - Alejandro Lillo
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain;
| | - Rafael Rivas-Santisteban
- CiberNed, Network Research Center, Neurodegenerative Diseases, Spanish National Health Institute Carlos III, 28034 Madrid, Spain;
- Department of Biochemistry and Molecular Biomedicine, University of Barcelona, 08028 Barcelona, Spain
| | - Irene Reyes-Resina
- CiberNed, Network Research Center, Neurodegenerative Diseases, Spanish National Health Institute Carlos III, 28034 Madrid, Spain;
- Department of Biochemistry and Molecular Biomedicine, University of Barcelona, 08028 Barcelona, Spain
| | - Gemma Navarro
- CiberNed, Network Research Center, Neurodegenerative Diseases, Spanish National Health Institute Carlos III, 28034 Madrid, Spain;
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain;
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Casanovas M, Reyes-Resina I, Lillo A, Lillo J, López-Arnau R, Camarasa J, Escubedo E, Navarro G, Franco R. Methamphetamine Blocks Adenosine A 2A Receptor Activation via Sigma 1 and Cannabinoid CB 1 Receptors. Int J Mol Sci 2021; 22:2743. [PMID: 33803075 PMCID: PMC7963146 DOI: 10.3390/ijms22052743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 03/01/2021] [Indexed: 11/16/2022] Open
Abstract
Methamphetamine is, worldwide, one of the most consumed drugs of abuse. One important side effect is neurodegeneration leading to a decrease in life expectancy. The aim of this paper was to check whether the drug affects one of the receptors involved in neurodegeneration/neuroprotection events, namely the adenosine A2A receptor (A2AR). First, we noticed that methamphetamine does not affect A2A functionality if the receptor is expressed in a heterologous system. However, A2AR becomes sensitive to the drug upon complexes formation with the cannabinoid CB1 receptor (CB1R) and the sigma 1 receptor (σ1R). Signaling via both adenosine A2AR and cannabinoid CB1R was affected by methamphetamine in cells co-expressing the two receptors. In striatal primary cultures, the A2AR-CB1R heteromer complex was detected and methamphetamine not only altered its expression but completely blocked the A2AR- and the CB1R-mediated activation of the mitogen activated protein kinase (MAPK) pathway. In conclusion, methamphetamine, with the participation of σ1R, alters the expression and function of two interacting receptors, A2AR, which is a therapeutic target for neuroprotection, and CB1R, which is the most abundant G protein-coupled receptor (GPCR) in the brain.
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Affiliation(s)
- Mireia Casanovas
- Biology School, Department of Biochemistry and Molecular Biomedicine, University of Barcelona, 08028 Barcelona, Spain; (M.C.); (I.R.-R.); (J.L.)
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Irene Reyes-Resina
- Biology School, Department of Biochemistry and Molecular Biomedicine, University of Barcelona, 08028 Barcelona, Spain; (M.C.); (I.R.-R.); (J.L.)
| | - Alejandro Lillo
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain;
| | - Jaume Lillo
- Biology School, Department of Biochemistry and Molecular Biomedicine, University of Barcelona, 08028 Barcelona, Spain; (M.C.); (I.R.-R.); (J.L.)
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Raul López-Arnau
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Institute of Biomedicine (IBUB), University of Barcelona, 08028 Barcelona, Spain; (R.L.-A.); (J.C.); (E.E.)
| | - Jorge Camarasa
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Institute of Biomedicine (IBUB), University of Barcelona, 08028 Barcelona, Spain; (R.L.-A.); (J.C.); (E.E.)
| | - Elena Escubedo
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Institute of Biomedicine (IBUB), University of Barcelona, 08028 Barcelona, Spain; (R.L.-A.); (J.C.); (E.E.)
| | - Gemma Navarro
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, 28031 Madrid, Spain
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain;
| | - Rafael Franco
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, 28031 Madrid, Spain
- Chemistry School, Department of Biochemistry and Molecular Biomedicine, University of Barcelona, 08028 Barcelona, Spain
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Moradi S, Moloudi J, Moradinazar M, Sarokhani D, Nachvak SM, Samadi M. Adherence to Healthy Diet Can Delay Alzheimer's Diseases Development: A Systematic Review and Meta-Analysis. Prev Nutr Food Sci 2020; 25:325-337. [PMID: 33505926 PMCID: PMC7813603 DOI: 10.3746/pnf.2020.25.4.325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 09/15/2020] [Indexed: 11/07/2022] Open
Abstract
A healthy diet has long been indicated to be protective against Alzheimer’s diseases (AD). We carried out a systematic review and meta-analysis of published observational studies to explore the relationship between healthy and unhealthy diets and risk of ADs. We screened PubMed, Scopus, Web of Sciences, Google Scholar, Science Direct, and Embase, and screened manually to identify relevant articles published in English and non-English until Jun 2020. We classified the studied dietary patterns into two groups: healthy and unhealthy diets. The pooled weighted mean difference and 95% confidence interval (95% CI) was used to analyze the data using a random-effects model. The data were extracted manually and the preferred reporting items for systematic review and meta-analysis checklist was used to appraise the risk of bias and quality of data. Of the 1,813 articles identified, 21 met the inclusion criteria and were included in the quantitative analysis. A healthy diet was related to a lower risk of AD [odds ratio (OR): 0.45, 95% CI: 0.23 to 0.86, I2=99.7%; n=17 studies]. Moreover, high adherence to an unhealthy diet was not associated with increased risk of AD (OR: 0.99, 95% CI: 0.98 to 0.99, I2=0.0%; n=6 studies). However, the etiology of AD is uncertain and it is difficult draw conclusions about dietary healthy patterns. We concluded that adherence to a healthy diet is associated with a lower risk of AD, but were unable to find evidence that an unhealthy diet increases the risk of AD.
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Affiliation(s)
- Shima Moradi
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah 67198-51351, Iran
| | - Jalall Moloudi
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah 67198-51351, Iran.,Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah 67198-51351, Iran
| | - Mehdi Moradinazar
- Behavioral Disease Research Center, Kermanshah University of Medical Sciences, Kermanshah 67198-51351, Iran
| | - Diana Sarokhani
- Psychosocial Injuries Research Center, Ilam University of Medical Sciences, Ilam 69311-57793, Iran
| | - Seyyed Mostafa Nachvak
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah 67198-51351, Iran
| | - Mehnoosh Samadi
- Department of Nutritional Sciences, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah 67198-51351, Iran
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Liang Y, Ngandu T, Laatikainen T, Soininen H, Tuomilehto J, Kivipelto M, Qiu C. Cardiovascular health metrics from mid- to late-life and risk of dementia: A population-based cohort study in Finland. PLoS Med 2020; 17:e1003474. [PMID: 33320852 PMCID: PMC7737898 DOI: 10.1371/journal.pmed.1003474] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 11/09/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Very few studies have explored the patterns of cardiovascular health (CVH) metrics in midlife and late life in relation to risk of dementia. We examined the associations of composite CVH metrics from midlife to late life with risk of incident dementia. METHODS AND FINDINGS This cohort study included 1,449 participants from the Finnish Cardiovascular Risk Factors, Aging, and Dementia (CAIDE) study, who were followed from midlife (baseline from1972 to 1987; mean age 50.4 years; 62.1% female) to late life (1998), and then 744 dementia-free survivors were followed further into late life (2005 to 2008). We defined and scored global CVH metrics based on 6 of the 7 components (i.e., smoking, physical activity, and body mass index [BMI] as behavioral CVH metrics; fasting plasma glucose, total cholesterol, and blood pressure as biological CVH metrics) following the modified American Heart Association (AHA)'s recommendations. Then, the composite global, behavioral, and biological CVH metrics were categorized into poor, intermediate, and ideal levels. Dementia was diagnosed following the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria. Data were analyzed with Cox proportional hazards and the Fine and Gray competing risk regression models. During the follow-up examinations, dementia was diagnosed in 61 persons in 1998 and additional 47 persons in 2005 to 2008. The fully adjusted hazard ratio (HR) of dementia was 0.71 (95% confidence interval [CI]: 0.43, 1.16; p = 0.174) and 0.52 (0.29, 0.93; p = 0.027) for midlife intermediate and ideal levels (versus poor level) of global CVH metrics, respectively; the corresponding figures for late-life global CVH metrics were 0.60 (0.22, 1.69; p = 0.338) and 0.91 (0.34, 2.41; p = 0.850). Compared with poor global CVH metrics in both midlife and late life, the fully adjusted HR of dementia was 0.25 (95% CI: 0.08, 0.86; p = 0.028) for people with intermediate global CVH metrics in both midlife and late life and 0.14 (0.02, 0.76; p = 0.024) for those with midlife ideal and late-life intermediate global CVH metrics. Having an intermediate or ideal level of behavioral CVH in both midlife and late life (versus poor level in both midlife and late life) was significantly associated with a lower dementia risk (HR range: 0.03 to 0.26; p < 0.05), whereas people with midlife intermediate and late-life ideal biological CVH metrics had a significantly increased risk of dementia (p = 0.031). Major limitations of this study include the lack of data on diet and midlife plasma glucose, high rate of attrition, as well as the limited power for certain subgroup analyses. CONCLUSIONS In this study, we observed that having the ideal CVH metrics, and ideal behavioral CVH metrics in particular, from midlife onwards is associated with a reduced risk of dementia as compared with people having poor CVH metrics. Maintaining life-long health behaviors may be crucial to reduce late-life risk of dementia.
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Affiliation(s)
- Yajun Liang
- Aging Research Center & Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet and Stockholm University, Stockholm, Sweden
- Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden
| | - Tiia Ngandu
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
- Division of Clinical Geriatrics & Center for Alzheimer Research, NVS, Karolinska Institutet, Stockholm, Sweden
| | - Tiina Laatikainen
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
- Joint Municipal Authority for North Karelia Social and Health Services (Siun Sote), Joensuu, Finland
| | - Hilkka Soininen
- Neurocenter, Department of Neurology, Kuopio University Hospital, Kuopio, Finland
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - Jaakko Tuomilehto
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
- Saudi Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia and Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Miia Kivipelto
- Division of Clinical Geriatrics & Center for Alzheimer Research, NVS, Karolinska Institutet, Stockholm, Sweden
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
- Neuroepidemiology and Ageing Research Unit, School of Public Health, Imperial College London, London, United Kingdom
- Stockholms Sjukhem, Research and Development Unit, Stockholm, Sweden
- * E-mail: (MK); (CQ)
| | - Chengxuan Qiu
- Aging Research Center & Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet and Stockholm University, Stockholm, Sweden
- * E-mail: (MK); (CQ)
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Natural Compounds as Guides for the Discovery of Drugs Targeting G-Protein-Coupled Receptors. Molecules 2020; 25:molecules25215060. [PMID: 33143389 PMCID: PMC7663367 DOI: 10.3390/molecules25215060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 10/20/2020] [Accepted: 10/27/2020] [Indexed: 01/12/2023] Open
Abstract
G protein-coupled receptors (GPCRs), which constitute the most populous family of the human proteome, are the target of 35–45% of approved therapeutic drugs. This review focuses on natural products (excluding peptides) that target GPCRs. Natural compounds identified so far as agonists, antagonists or allosteric modulators of GPCRs have been found in all groups of existing living beings according to Whittaker’s Five Kingdom Classification, i.e., bacteria (monera), fungi, protoctists, plants and animals. Terpenoids, alkaloids and flavonoids are the most common chemical structures that target GPCRs whose endogenous ligands range from lipids to epinephrine, from molecules that activate taste receptors to molecules that activate smell receptors. Virtually all of the compounds whose formula is displayed in this review are pharmacophores with potential for drug discovery; furthermore, they are expected to help expand the number of GPCRs that can be considered as therapeutic targets.
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11
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Li XY, Zhang M, Xu W, Li JQ, Cao XP, Yu JT, Tan L. Midlife Modifiable Risk Factors for Dementia: A Systematic Review and Meta-analysis of 34 Prospective Cohort Studies. Curr Alzheimer Res 2020; 16:1254-1268. [PMID: 31902364 DOI: 10.2174/1567205017666200103111253] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 11/25/2019] [Accepted: 12/29/2019] [Indexed: 01/20/2023]
Abstract
OBJECTIVE The aim of this study is to assess the association between midlife risk factors and dementia. METHODS PubMed and Cochrane library were systematically searched on May 24, 2018, to retrieve prospective cohort studies. The summary Relative Risk (RR) and 95% Confidence Interval (CI) were calculated by the random-effect model to explore the association between midlife risk factors and dementia. Sensitivity analysis and meta-regression were conducted to explore the source of heterogeneity. Publication bias was examined using Begg's and Egger's tests. RESULTS Thirty-four prospective cohort studies were included, among which 24 were eligible for metaanalysis. A total of 159,594 non-demented adults were enrolled at baseline before 65 years and 13,540 people were diagnosed with dementia after follow-up. The pooled results revealed that five factors could significantly increase the dementia risk by 41 to 78%, including obesity (RR, 1.78; 95% CI: 1.31-2.41), diabetes mellitus (RR, 1.69; 95% CI: 1.38-2.07), current smoking (RR, 1.61; 95%, CI: 1.32-1.95), hypercholesterolemia (RR, 1.57; 95% CI: 1.19-2.07), and hypertension (borderline blood pressure RR, 1.41; 95% CI: 1.23-1.62 and high Systolic Blood Pressure (SBP) RR, 1.72; 95% CI: 1.25-2.37). However, the sensitivity analyses found that the results of hypercholesterolemia and high SBP were not reliable, which need to be confirmed by more high-quality studies. No influences due to publication bias were revealed. In the systematic review, another three factors (hyperhomocysteinemia, psychological stress, and heavy drinking) were found to be associated with elevated dementia risk. In addition, physical exercise, a healthy diet, and hormone therapy in middle age were associated with the reduction of dementia risk. CONCLUSIONS Middle-aged people with obesity, diabetes, hypertension, or hypercholesterolemia, and current smokers in midlife are at higher risk of developing dementia later in life.
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Affiliation(s)
- Xiao-Ying Li
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Min Zhang
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Wei Xu
- College of Medicine and Pharmaceutics, Ocean University of China, Qingdao, China
| | - Jie-Qiong Li
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Xi-Peng Cao
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jin-Tai Yu
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China.,Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lan Tan
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China.,College of Medicine and Pharmaceutics, Ocean University of China, Qingdao, China
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12
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Gustafson DR, Bäckman K, Scarmeas N, Stern Y, Manly JJ, Mayeux R, Gu Y. Dietary fatty acids and risk of Alzheimer's disease and related dementias: Observations from the Washington Heights-Hamilton Heights-Inwood Columbia Aging Project (WHICAP). Alzheimers Dement 2020; 16:1638-1649. [PMID: 32715635 PMCID: PMC8409226 DOI: 10.1002/alz.12154] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Introduction: High dietary intake of long chain, polyunsaturated fatty acids is associated with lower Alzheimer’s disease (AD) risk. Methods: Washington Heights-Hamilton Heights-Inwood Columbia Aging Project is a multiethnic, prospective observational study of aging and dementia among elderly (≥ 65 years). Dietary intake was measured using a food frequency questionnaire. Dietary short-, medium-, and long-chain fatty acid intakes were categorized by number of carbons and double bonds. Consensus AD diagnoses were made. Associations between AD risk and dietary fatty acid and cholesterol intakes were estimated using multivariable Cox proportional hazards regression models. Results: Of 2612 multiethnic women (67%) and men (baseline age 76.3 [6.4] years), 380 developed AD over an average 4.5 years follow-up. Lower risk of AD was associated with increasing intakes of docosahexaenoic acid (DHA; hazard ratio [HR] = 0.73, 95% confidence interval [CI]: 0.57 to 0.95, P = 0.018) and eicosapentaenoic acid (EPA; HR = 0.74, 95% CI: 0.57 to 0.95, P = 0.021), and longer AD-free survival (P < 0.05). Discussion: Higher intake of DHA and EPA are protective for AD.
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Affiliation(s)
- Deborah R Gustafson
- Department of Neurology, State University of New York Downstate Health Sciences University, Brooklyn, New York, USA.,Department of Neurochemistry and Psychiatry, Neuropsychiatric Epidemiology Unit, at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - K Bäckman
- Department of Neurochemistry and Psychiatry, Neuropsychiatric Epidemiology Unit, at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - N Scarmeas
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA.,1st Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Y Stern
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA
| | - J J Manly
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA
| | - R Mayeux
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA.,The Department of Epidemiology, Joseph P. Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Y Gu
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA.,The Department of Epidemiology, Joseph P. Mailman School of Public Health, Columbia University, New York, New York, USA
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13
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Williams AC, Hill LJ. The 4 D's of Pellagra and Progress. Int J Tryptophan Res 2020; 13:1178646920910159. [PMID: 32327922 PMCID: PMC7163231 DOI: 10.1177/1178646920910159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 02/06/2020] [Indexed: 12/12/2022] Open
Abstract
Nicotinamide homeostasis is a candidate common denominator to explain smooth transitions, whether demographic, epidemiological or economic. This 'NAD world', dependent on hydrogen-based energy, is not widely recognised as it is neither measured nor viewed from a sufficiently multi-genomic or historical perspective. Reviewing the importance of meat and nicotinamide balances during our co-evolution, recent history suggests that populations only modernise and age well with low fertility on a suitably balanced diet. Imbalances on the low meat side lead to an excess of infectious disease, short lives and boom-bust demographics. On the high side, meat has led to an excess of degenerative, allergic and metabolic disease and low fertility. A 'Goldilocks' diet derived from mixed and sustainable farming (preserving the topsoil) allows for high intellectual capital, height and good health with controlled population growth resulting in economic growth and prosperity. Implementing meat equity worldwide could lead to progress for future generations on 'spaceship' earth by establishing control over population quality, thermostat and biodiversity, if it is not already too late.
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Affiliation(s)
- Adrian C Williams
- Department of Neurology, University
Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Lisa J Hill
- School of Biomedical Sciences, Institute
of Clinical Sciences, University of Birmingham, Birmingham, UK
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14
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Franco R, Rivas-Santisteban R, Reyes-Resina I, Navarro G, Martínez-Pinilla E. Microbiota and Other Preventive Strategies and Non-genetic Risk Factors in Parkinson's Disease. Front Aging Neurosci 2020; 12:12. [PMID: 32226375 PMCID: PMC7080700 DOI: 10.3389/fnagi.2020.00012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 01/15/2020] [Indexed: 12/15/2022] Open
Abstract
The exact cause of Parkinson’s disease (PD), the second most prevalent neurodegenerative disease in modern societies, is still unknown. Many scientists point out that PD is caused by a complex interaction between different factors. Although the main risk factor is age, there are other influences, genetic and environmental, that individually or in combination may trigger neurodegenerative changes leading to PD. Nowadays, research remains focused on better understanding which environmental factors are related to the risk of developing PD and why. In line with the knowledge on evidence on exposures that prevent/delay PD onset or that impact on disease progression, the aims of this review were: (i) to comment on the non-genetic risk factors that mainly affect idiopathic PD; and (ii) to comment on seemingly reliable preventive interventions. We discuss both environmental factors that may affect the central nervous system (CNS) or the intestinal tract, and the likely mechanisms underlying noxious or protective actions. Knowledge on risk, protective factors, and mechanisms may help to envisage why nigral dopaminergic neurons are so vulnerable in PD and, eventually, to design new strategies for PD prevention and/or anti-PD therapy. This article reviews the variety of the known and suspected environmental factors, such as lifestyle, gut microbiota or pesticide exposition, and distinguishes between those that are harmful or beneficial for the PD acquisition or progression. In fact, the review covers one of the most novel players in the whole picture, and we address the role of microbiota on keeping a healthy CNS and/or on preventing the “side-effects” related to aging.
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Affiliation(s)
- Rafael Franco
- Chemistry School, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, Madrid, Spain
| | - Rafael Rivas-Santisteban
- Chemistry School, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Gemma Navarro
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CiberNed), Instituto de Salud Carlos III, Madrid, Spain.,Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, Barcelona, Spain
| | - Eva Martínez-Pinilla
- Departamento de Morfología y Biología Celular, Facultad de Medicina, Universidad de Oviedo, Oviedo, Spain.,Instituto de Neurociencias del Principado de Asturias (INEUROPA), Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
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15
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Deckers K, Barbera M, Köhler S, Ngandu T, van Boxtel M, Rusanen M, Laatikainen T, Verhey F, Soininen H, Kivipelto M, Solomon A. Long-term dementia risk prediction by the LIBRA score: A 30-year follow-up of the CAIDE study. Int J Geriatr Psychiatry 2020; 35:195-203. [PMID: 31736136 PMCID: PMC7003764 DOI: 10.1002/gps.5235] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 11/07/2019] [Indexed: 11/12/2022]
Abstract
OBJECTIVE As no causal treatment for dementia is available yet, the focus of dementia research is slowly shifting towards prevention strategies. Therefore, this study aimed to examine the predictive accuracy of the "LIfestyle for BRAin Health" (LIBRA) score, a weighted compound score of 12 modifiable risk and protective factors, for dementia and mild cognitive impairment (MCI) in midlife and late-life, and in individuals with high or low genetic risk based on presence of the apolipoprotein (APOE) ε4 allele. METHODS The LIBRA score was calculated for participants from the Finnish Cardiovascular Risk Factors, Aging and Dementia (CAIDE) population-based study examined in midlife (n = 1024) and twice in late-life (n = 604) up to 30 years later. Diagnoses of MCI and dementia were made according to established criteria. Cox proportional hazards models were used to assess the association between LIBRA and risk of dementia and MCI in models adjusted for sex and education (age as timescale). RESULTS Higher midlife LIBRA scores were related to higher risk of dementia (hazard ratio [HR] = 1.27; 95% confidence interval [CI], 1.13-1.43) and MCI (unadjusted model: HR = 1.12; 95% CI, 1.03-1.22) up to 30 years later. Higher late-life LIBRA scores were related to higher risk of MCI (HR = 1.11; 95% CI, 1.00-1.25), but not dementia (HR = 1.02; 95% CI, 0.84-1.24). Higher late-life LIBRA scores were related to higher dementia risk among apolipoprotein E (APOE) ε4 non-carriers. CONCLUSIONS Findings emphasize the importance of modifiable risk and protective factors for dementia prevention.
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Affiliation(s)
- Kay Deckers
- Alzheimer Centrum Limburg, School for Mental Health and Neuroscience (MHeNS)Maastricht UniversityMaastrichtThe Netherlands
| | - Mariagnese Barbera
- Institute of Clinical Medicine/NeurologyUniversity of Eastern FinlandKuopioFinland
| | - Sebastian Köhler
- Alzheimer Centrum Limburg, School for Mental Health and Neuroscience (MHeNS)Maastricht UniversityMaastrichtThe Netherlands
| | - Tiia Ngandu
- Public Health Promotion UnitNational Institute for Health and WelfareHelsinkiFinland,Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences, and SocietyKarolinska InstitutetStockholmSweden
| | - Martin van Boxtel
- Alzheimer Centrum Limburg, School for Mental Health and Neuroscience (MHeNS)Maastricht UniversityMaastrichtThe Netherlands
| | - Minna Rusanen
- Public Health Promotion UnitNational Institute for Health and WelfareHelsinkiFinland
| | - Tiina Laatikainen
- Public Health Promotion UnitNational Institute for Health and WelfareHelsinkiFinland,Institute of Public Health and Clinical NutritionUniversity of Eastern FinlandKuopioFinland,Hospital District of North KareliaJoensuuFinland
| | - Frans Verhey
- Alzheimer Centrum Limburg, School for Mental Health and Neuroscience (MHeNS)Maastricht UniversityMaastrichtThe Netherlands
| | - Hilkka Soininen
- Institute of Clinical Medicine/NeurologyUniversity of Eastern FinlandKuopioFinland,Neurocenter, Department of NeurologyKuopio University HospitalKuopioFinland
| | - Miia Kivipelto
- Institute of Clinical Medicine/NeurologyUniversity of Eastern FinlandKuopioFinland,Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences, and SocietyKarolinska InstitutetStockholmSweden,Institute of Public Health and Clinical NutritionUniversity of Eastern FinlandKuopioFinland,Ageing Epidemiology (AGE) Research Unit, School of Public HealthImperial College LondonLondonUnited Kingdom
| | - Alina Solomon
- Institute of Clinical Medicine/NeurologyUniversity of Eastern FinlandKuopioFinland,Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences, and SocietyKarolinska InstitutetStockholmSweden
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16
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Dietary pattern in relation to the risk of Alzheimer’s disease: a systematic review. Neurol Sci 2019; 40:2031-2043. [DOI: 10.1007/s10072-019-03976-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 06/08/2019] [Indexed: 10/26/2022]
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17
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Cho MS, Kim JY. Effects of exercise and nutrition education programs on motor function and eating habit in mild dementia patients. J Exerc Rehabil 2019; 15:88-94. [PMID: 30899742 PMCID: PMC6416496 DOI: 10.12965/jer.1836632.316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 01/22/2019] [Indexed: 12/17/2022] Open
Abstract
The purpose of this study was to investigate the effects of physical ac-tivity and nutrition education programs on mild dementia patients with changes in exercise function and eating habits. We examined the effects of pre and post program on 23 old patients with dementia who were diagnosed with menarche or mild dementia with the permission of the dementia center in Incheon city and visited from April to July 2017. The Mini-Mental State Examination score of the subjects in this study was 19.68±3.25, consisting of mild dementia patients. After performing the program for 16 weeks, the senior fitness test showed a significant change in the arm curl test, chair sit-and-reach test, and 2-min step test, and a total score of mini nutrition assessment increased from 19.16 to 21.0. In particular, in a level 2 evaluation, which contains more details such as the condition of taking drugs, number of daily meals, protein food intake condition, intake of vegetables, fruit, and water, whether one can eat alone, and evaluation of nutritive condition, a significant increase from 9.78 to 11.28 was verified. There is a significant increase in nutrition condition recovery as a result of nutrition education. In comparing pre and post program, a significant result was confirmed, and there was significance to provide the basic empirical data for the exercise and dietary life nutritional education of mild dementia patients.
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Affiliation(s)
- Min-Soo Cho
- Liberal Arts College, Chungwoon University, Incheon, Korea
| | - Ji-Youn Kim
- Exercise Rehabilitation Convergence Institute, Gachon University, Incheon, Korea
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18
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McEvoy CT, Hoang T, Sidney S, Steffen LM, Jacobs DR, Shikany JM, Wilkins JT, Yaffe K. Dietary patterns during adulthood and cognitive performance in midlife: The CARDIA study. Neurology 2019; 92:e1589-e1599. [PMID: 30842290 DOI: 10.1212/wnl.0000000000007243] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 11/28/2018] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE To investigate whether dietary patterns (Mediterranean diet [MedDiet], Dietary Approaches to Stop Hypertension [DASH], and A Priori Diet Quality Score [APDQS]) during adulthood are associated with midlife cognitive performance. METHODS We studied 2,621 Coronary Artery Risk Development in Young Adults (CARDIA) participants; 45% were black, 57% were female, and mean age was 25 ± 3.5 years at baseline (year 0). Mean diet scores were calculated from diet history at baseline, year 7, and year 20 (mean age 25, 32, and 45 years, respectively). Cognitive function was assessed at years 25 and 30 (mean age 50 and 55 years, respectively). Linear models were used to examine association between tertiles of diet score and change in composite cognitive function and cognitive z scores (verbal memory [Rey Auditory Verbal Learning Test], processing speed [Digit Symbol Substitution Test], and executive function [Stroop Interference test]) and the Montreal Cognitive Assessment (MoCA) at year 30. RESULTS DASH was not associated with change in cognitive performance. Higher MedDiet and APDQS scores were associated with less decline in cognitive function (MedDiet: low -0.04, middle 0.03, high 0.03, p = 0.03; APDQS: low -0.04, middle -0.00, high 0.06, p < 0.01) and Stroop Interference (MedDiet: low 0.09, middle -0.06, high -0.03; APDQS: low 0.10, middle 0.01, high -0.09, both p < 0.01). Odds ratios (95% confidence interval) for poor global cognitive function (≥1 SD below mean MoCA score) comparing extreme tertiles of diet scores were 0.54 (0.39-0.74) for MedDiet, 0.48 (0.33-0.69) for APDQS, and 0.89 (0.68-1.17) for DASH. CONCLUSION Greater adherence to MedDiet and APDQS dietary patterns during adulthood was associated with better midlife cognitive performance. Additional studies are needed to define the combination of foods and nutrients for optimal brain health across the life course.
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Affiliation(s)
- Claire T McEvoy
- From the Centre for Public Health (C.T.M.), School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Northern Ireland, UK; Global Brain Health Institute (C.T.M., K.Y.), Department of Neurology (K.Y.), and Department of Epidemiology and Biostatistics (K.Y.), University of California, San Francisco; Trinity College Dublin (C.T.M.), Ireland; Northern California Institute for Research and Education (T.H.), San Francisco; Division of Research (S.S.), Kaiser Permanente Northern California, Oakland; Division of Epidemiology and Community Health (L.M.S., D.R.J.), School of Public Health, University of Minnesota, Minneapolis; Division of Preventive Medicine (J.M.S.), School of Medicine, University of Alabama at Birmingham; Department of Preventive Medicine and Medicine (Cardiology) (J.T.W.), Northwestern University Feinberg School of Medicine, Chicago, IL; and San Francisco Veterans Affairs Medical Center (K.Y.), CA.
| | - Tina Hoang
- From the Centre for Public Health (C.T.M.), School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Northern Ireland, UK; Global Brain Health Institute (C.T.M., K.Y.), Department of Neurology (K.Y.), and Department of Epidemiology and Biostatistics (K.Y.), University of California, San Francisco; Trinity College Dublin (C.T.M.), Ireland; Northern California Institute for Research and Education (T.H.), San Francisco; Division of Research (S.S.), Kaiser Permanente Northern California, Oakland; Division of Epidemiology and Community Health (L.M.S., D.R.J.), School of Public Health, University of Minnesota, Minneapolis; Division of Preventive Medicine (J.M.S.), School of Medicine, University of Alabama at Birmingham; Department of Preventive Medicine and Medicine (Cardiology) (J.T.W.), Northwestern University Feinberg School of Medicine, Chicago, IL; and San Francisco Veterans Affairs Medical Center (K.Y.), CA
| | - Stephen Sidney
- From the Centre for Public Health (C.T.M.), School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Northern Ireland, UK; Global Brain Health Institute (C.T.M., K.Y.), Department of Neurology (K.Y.), and Department of Epidemiology and Biostatistics (K.Y.), University of California, San Francisco; Trinity College Dublin (C.T.M.), Ireland; Northern California Institute for Research and Education (T.H.), San Francisco; Division of Research (S.S.), Kaiser Permanente Northern California, Oakland; Division of Epidemiology and Community Health (L.M.S., D.R.J.), School of Public Health, University of Minnesota, Minneapolis; Division of Preventive Medicine (J.M.S.), School of Medicine, University of Alabama at Birmingham; Department of Preventive Medicine and Medicine (Cardiology) (J.T.W.), Northwestern University Feinberg School of Medicine, Chicago, IL; and San Francisco Veterans Affairs Medical Center (K.Y.), CA
| | - Lyn M Steffen
- From the Centre for Public Health (C.T.M.), School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Northern Ireland, UK; Global Brain Health Institute (C.T.M., K.Y.), Department of Neurology (K.Y.), and Department of Epidemiology and Biostatistics (K.Y.), University of California, San Francisco; Trinity College Dublin (C.T.M.), Ireland; Northern California Institute for Research and Education (T.H.), San Francisco; Division of Research (S.S.), Kaiser Permanente Northern California, Oakland; Division of Epidemiology and Community Health (L.M.S., D.R.J.), School of Public Health, University of Minnesota, Minneapolis; Division of Preventive Medicine (J.M.S.), School of Medicine, University of Alabama at Birmingham; Department of Preventive Medicine and Medicine (Cardiology) (J.T.W.), Northwestern University Feinberg School of Medicine, Chicago, IL; and San Francisco Veterans Affairs Medical Center (K.Y.), CA
| | - David R Jacobs
- From the Centre for Public Health (C.T.M.), School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Northern Ireland, UK; Global Brain Health Institute (C.T.M., K.Y.), Department of Neurology (K.Y.), and Department of Epidemiology and Biostatistics (K.Y.), University of California, San Francisco; Trinity College Dublin (C.T.M.), Ireland; Northern California Institute for Research and Education (T.H.), San Francisco; Division of Research (S.S.), Kaiser Permanente Northern California, Oakland; Division of Epidemiology and Community Health (L.M.S., D.R.J.), School of Public Health, University of Minnesota, Minneapolis; Division of Preventive Medicine (J.M.S.), School of Medicine, University of Alabama at Birmingham; Department of Preventive Medicine and Medicine (Cardiology) (J.T.W.), Northwestern University Feinberg School of Medicine, Chicago, IL; and San Francisco Veterans Affairs Medical Center (K.Y.), CA
| | - James M Shikany
- From the Centre for Public Health (C.T.M.), School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Northern Ireland, UK; Global Brain Health Institute (C.T.M., K.Y.), Department of Neurology (K.Y.), and Department of Epidemiology and Biostatistics (K.Y.), University of California, San Francisco; Trinity College Dublin (C.T.M.), Ireland; Northern California Institute for Research and Education (T.H.), San Francisco; Division of Research (S.S.), Kaiser Permanente Northern California, Oakland; Division of Epidemiology and Community Health (L.M.S., D.R.J.), School of Public Health, University of Minnesota, Minneapolis; Division of Preventive Medicine (J.M.S.), School of Medicine, University of Alabama at Birmingham; Department of Preventive Medicine and Medicine (Cardiology) (J.T.W.), Northwestern University Feinberg School of Medicine, Chicago, IL; and San Francisco Veterans Affairs Medical Center (K.Y.), CA
| | - John T Wilkins
- From the Centre for Public Health (C.T.M.), School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Northern Ireland, UK; Global Brain Health Institute (C.T.M., K.Y.), Department of Neurology (K.Y.), and Department of Epidemiology and Biostatistics (K.Y.), University of California, San Francisco; Trinity College Dublin (C.T.M.), Ireland; Northern California Institute for Research and Education (T.H.), San Francisco; Division of Research (S.S.), Kaiser Permanente Northern California, Oakland; Division of Epidemiology and Community Health (L.M.S., D.R.J.), School of Public Health, University of Minnesota, Minneapolis; Division of Preventive Medicine (J.M.S.), School of Medicine, University of Alabama at Birmingham; Department of Preventive Medicine and Medicine (Cardiology) (J.T.W.), Northwestern University Feinberg School of Medicine, Chicago, IL; and San Francisco Veterans Affairs Medical Center (K.Y.), CA
| | - Kristine Yaffe
- From the Centre for Public Health (C.T.M.), School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Northern Ireland, UK; Global Brain Health Institute (C.T.M., K.Y.), Department of Neurology (K.Y.), and Department of Epidemiology and Biostatistics (K.Y.), University of California, San Francisco; Trinity College Dublin (C.T.M.), Ireland; Northern California Institute for Research and Education (T.H.), San Francisco; Division of Research (S.S.), Kaiser Permanente Northern California, Oakland; Division of Epidemiology and Community Health (L.M.S., D.R.J.), School of Public Health, University of Minnesota, Minneapolis; Division of Preventive Medicine (J.M.S.), School of Medicine, University of Alabama at Birmingham; Department of Preventive Medicine and Medicine (Cardiology) (J.T.W.), Northwestern University Feinberg School of Medicine, Chicago, IL; and San Francisco Veterans Affairs Medical Center (K.Y.), CA
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19
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Seyedsadjadi N, Berg J, Bilgin AA, Braidy N, Salonikas C, Grant R. High protein intake is associated with low plasma NAD+ levels in a healthy human cohort. PLoS One 2018; 13:e0201968. [PMID: 30114226 PMCID: PMC6095538 DOI: 10.1371/journal.pone.0201968] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/25/2018] [Indexed: 01/19/2023] Open
Abstract
High protein intake and reduced levels of the essential pyridine nucleotide nicotinamide adenine dinucleotide (NAD+) have both been independently associated with promotion of the ageing phenotype. However, it has not yet been shown whether these two independent observations are biochemically linked. To investigate this possibility, we used a cross-sectional study design of 100 apparently healthy middle-aged males (n = 48) and females, in which we assessed average dietary intakes of multiple components using a validated questionnaire. We also analysed fasting blood levels of urea, NAD+ and its metabolites, and inflammation-linked biomarkers, including interleukin-6 (IL-6), Kynurenine (Kyn), and Tryptophan (Trp). One-way ANOVA and ANCOVA were then performed for statistical analysis. Our results have shown for the first time that plasma levels of NAD+ and Total NAD(H) were lower with increasing protein intake (F (2, 92) = 4.61, P = 0.012; F (2, 92) = 4.55, P = 0.013, respectively). The associated decrease in NAD+ and NAD(H) levels was even stronger with increasing plasma levels of the protein breakdown product urea (F (2, 93) = 25.11, P≤0.001; F (2, 93) = 21.10, P≤0.001). These associations were all independent of age, gender and energy intake. However, no significant association was observed between protein intake or plasma urea, and plasma levels of NAD+ metabolites. We also observed that plasma levels of the inflammatory cytokine IL-6, and both Kyn, and Trp, but not the Kyn/Trp ratio were higher with increasing plasma urea levels (F (2, 94) = 3.30, P = 0.041; F (2, 95) = 7.41, P≤0.001; F (2, 96) = 4.23, P = 0.017, respectively). These associations were dependent on eGFR and energy intake, except for the urea and Trp association that was independent of all. In conclusion, we report for the first time, a novel association between protein intake, its metabolism, and plasma NAD+ levels with a possible link to inflammation. These findings provide further insight into how protein restriction may contribute to the anti-ageing process observed in several studies.
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Affiliation(s)
- Neda Seyedsadjadi
- School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, NSW, Australia
| | - Jade Berg
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, NSW, Australia
| | - Ayse A. Bilgin
- Department of Statistics, Macquarie University, Sydney, NSW, Australia
| | - Nady Braidy
- Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Chris Salonikas
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, NSW, Australia
| | - Ross Grant
- School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, NSW, Australia
- Sydney Adventist Hospital Clinical School, University of Sydney, Sydney, NSW, Australia
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20
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Ravi SK, Narasingappa RB, Vincent B. Neuro-nutrients as anti-alzheimer's disease agents: A critical review. Crit Rev Food Sci Nutr 2018; 59:2999-3018. [PMID: 29846084 DOI: 10.1080/10408398.2018.1481012] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Alzheimer's disease (AD) is characterized by a massive neuronal death causing memory loss, cognitive impairment and behavioral alteration that ultimately lead to dementia and death. AD is a multi-factorial pathology controlled by molecular events such as oxidative stress, protein aggregation, mitochondrial dysfunction and neuro inflammation. Nowadays, there is no efficient disease-modifying treatment for AD and epidemiological studies have suggested that diet and nutrition have a significant impact on the development of this disorder. Indeed, some nutrients can protect all kind of cells, including neurons. As prevention is better than cure, life style improvement, with a special emphasis on diet, should seriously be considered as an anti-AD track and intake of nutrients promoting neuronal health is the need of the hour. Diets rich in unsaturated fatty acids, polyphenols and vitamins have been shown to protect against AD, whereas saturated fatty acids-containing diets deprived of polyphenols promote the development of the disease. Thus, Mediterranean diets, mainly composed of fruits, vegetables and omega-3 fatty acids, stand as valuable, mild and preventive anti-AD agents. This review focuses on our current knowledge in the field and how one can fight this devastating neurodegenerative disorder through the simple proper modification of our life style.
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Affiliation(s)
- Sunil K Ravi
- Department of Biotechnology, College of Agriculture, University of Agriculture Sciences , Bangalore , Hassan , Karnataka , India
| | - Ramesh B Narasingappa
- Department of Biotechnology, College of Agriculture, University of Agriculture Sciences , Bangalore , Hassan , Karnataka , India
| | - Bruno Vincent
- Institute of Molecular Biosciences, Mahidol University , Nakhon Pathom , Thailand.,Centre National de la Recherche Scientifique , Paris , France
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Kulmala J, Ngandu T, Kivipelto M. Prevention Matters: Time for Global Action and Effective Implementation. J Alzheimers Dis 2018; 64:S191-S198. [DOI: 10.3233/jad-179919] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jenni Kulmala
- Public Health Promotion Unit, National Institute for Health and Welfare, Helsinki, Finland
- Division of Clinical Geriatrics, Center for Alzheimer Research, NVS, Karolinska Institutet, Stockholm, Sweden
| | - Tiia Ngandu
- Public Health Promotion Unit, National Institute for Health and Welfare, Helsinki, Finland
- Division of Clinical Geriatrics, Center for Alzheimer Research, NVS, Karolinska Institutet, Stockholm, Sweden
| | - Miia Kivipelto
- Public Health Promotion Unit, National Institute for Health and Welfare, Helsinki, Finland
- Division of Clinical Geriatrics, Center for Alzheimer Research, NVS, Karolinska Institutet, Stockholm, Sweden
- Department of Geriatrics, Karolinska University Hospital, Stockholm, Sweden
- Neuroepidemiology and Ageing Research Unit, School of Public Health, Imperial College London, London, UK
- Institute of Clinical Medicine, Neurology, University of Eastern Finland, Kuopio, Finland
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González HM, Tarraf W, Harrison K, Windham BG, Tingle J, Alonso A, Griswold M, Heiss G, Knopman D, Mosley TH. Midlife cardiovascular health and 20-year cognitive decline: Atherosclerosis Risk in Communities Study results. Alzheimers Dement 2018; 14:579-589. [PMID: 29268079 PMCID: PMC5938099 DOI: 10.1016/j.jalz.2017.11.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 11/03/2017] [Accepted: 11/13/2017] [Indexed: 12/29/2022]
Abstract
INTRODUCTION The aim was to examine associations between midlife cardiovascular health (CVH) and 20-year cognitive decline among blacks and whites. METHODS Midlife CVH metrics (American Heart Association's Life's Simple 7) were calculated and examined in relation to midlife and 20-year change in cognitive function among 13,270 whites and blacks from the Atherosclerosis Risk in Communities Cohort Study. We used linear mixed models to estimate adjusted associations of midlife CVH with midlife cognitive status and change. RESULTS Higher midlife (Life's Simple 7) scores and individual metrics, particularly blood pressure and glucose, were associated with better midlife cognition and reduced 20-year decline. Midlife CVH 20-year neuroprotection was more pronounced among whites than blacks. DISCUSSION Better midlife CVH was associated with higher midlife and reduced decline in cognitive function 20 years later. However, the benefits of midlife CVH on cognition were stronger for whites than for blacks. Our findings suggest that improved midlife CVH may promote enduring cognitive health.
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Affiliation(s)
- Hector M González
- Department of Neurosciences and Shiley-Marcos Alzheimer's Disease Research Center, University of California San Diego, San Diego, CA, USA
| | - Wassim Tarraf
- Institute of Gerontology, Department of Healthcare Sciences, Wayne State University, Detroit, MI, USA
| | - Kimystian Harrison
- School of Medicine, The University of Mississippi Medical Center, Jackson, MS, USA
| | - B Gwen Windham
- Department of Medicine, The University of Mississippi Medical Center, Jackson, MS, USA
| | - Jonathan Tingle
- Department of Data Science, JD Bower School of Population Health, The University of Mississippi Medical Center, Jackson, MS, USA
| | - Alvaro Alonso
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Michael Griswold
- Department of Data Science, JD Bower School of Population Health, The University of Mississippi Medical Center, Jackson, MS, USA
| | - Gerardo Heiss
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - David Knopman
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Thomas H Mosley
- Department of Medicine, The University of Mississippi Medical Center, Jackson, MS, USA; Memory Impairment and Neurodegenerative Dementia (MIND) Center, The University of Mississippi Medical Center, Jackson, MS, USA.
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From Heart Health to Brain Health: Legacy of the North Karelia Project
for Dementia Research. Glob Heart 2016; 11:235-42. [DOI: 10.1016/j.gheart.2016.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 04/25/2016] [Indexed: 12/30/2022] Open
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Pool LR, Weuve J, Wilson RS, Bültmann U, Evans DA, Mendes de Leon CF. Occupational cognitive requirements and late-life cognitive aging. Neurology 2016; 86:1386-1392. [PMID: 26984944 PMCID: PMC4831043 DOI: 10.1212/wnl.0000000000002569] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 01/04/2016] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVE To examine whether occupational cognitive requirements, as a marker of adulthood cognitive activity, are associated with late-life cognition and cognitive decline. METHODS Main lifetime occupation information for 7,637 participants aged >65 years of the Chicago Health and Aging Project (CHAP) was linked with standardized data on worker attributes and job characteristics from the Occupational Information Network (O*NET). Ratings of cognitive processes required in 10 work-related tasks were used to create a summary measure of occupational cognitive requirements (possible range 0-7). Multivariable-adjusted linear mixed models were used to estimate the association of occupational cognitive requirements score (OCRS) with cognitive function and rate of cognitive decline. RESULTS Higher OCRS corresponded to significantly better late-life cognitive performance at baseline in 1993 (p < 0.001) and to slower decline in global cognitive function over time (p = 0.004). Within a genotyped subsample (n = 4,104), the associations of OCRS with rate of cognitive decline did not differ significantly by APOE ε4 carriership (p = 0.11). CONCLUSIONS Findings suggest that occupational cognitive requirements are associated with better cognition and a slower rate of cognitive decline in older age. Adulthood cognitive activity may contribute to cognitive reserve in late life.
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Affiliation(s)
- Lindsay R Pool
- From the Department of Epidemiology (L.R.P., C.F.M.d.L.), University of Michigan, Ann Arbor; Department of Internal Medicine (J.W., D.A.E.), Rush Institute for Healthy Aging (J.W., D.A.E.), Rush Alzheimer's Disease Center (R.S.W.), and Departments of Neurological Sciences and Behavioral Sciences (R.S.W.), Rush University Medical Center, Chicago, IL; and Department of Health Sciences, Community and Occupational Medicine (U.B.), University of Groningen, University Medical Center Groningen, the Netherlands.
| | - Jennifer Weuve
- From the Department of Epidemiology (L.R.P., C.F.M.d.L.), University of Michigan, Ann Arbor; Department of Internal Medicine (J.W., D.A.E.), Rush Institute for Healthy Aging (J.W., D.A.E.), Rush Alzheimer's Disease Center (R.S.W.), and Departments of Neurological Sciences and Behavioral Sciences (R.S.W.), Rush University Medical Center, Chicago, IL; and Department of Health Sciences, Community and Occupational Medicine (U.B.), University of Groningen, University Medical Center Groningen, the Netherlands
| | - Robert S Wilson
- From the Department of Epidemiology (L.R.P., C.F.M.d.L.), University of Michigan, Ann Arbor; Department of Internal Medicine (J.W., D.A.E.), Rush Institute for Healthy Aging (J.W., D.A.E.), Rush Alzheimer's Disease Center (R.S.W.), and Departments of Neurological Sciences and Behavioral Sciences (R.S.W.), Rush University Medical Center, Chicago, IL; and Department of Health Sciences, Community and Occupational Medicine (U.B.), University of Groningen, University Medical Center Groningen, the Netherlands
| | - Ute Bültmann
- From the Department of Epidemiology (L.R.P., C.F.M.d.L.), University of Michigan, Ann Arbor; Department of Internal Medicine (J.W., D.A.E.), Rush Institute for Healthy Aging (J.W., D.A.E.), Rush Alzheimer's Disease Center (R.S.W.), and Departments of Neurological Sciences and Behavioral Sciences (R.S.W.), Rush University Medical Center, Chicago, IL; and Department of Health Sciences, Community and Occupational Medicine (U.B.), University of Groningen, University Medical Center Groningen, the Netherlands
| | - Denis A Evans
- From the Department of Epidemiology (L.R.P., C.F.M.d.L.), University of Michigan, Ann Arbor; Department of Internal Medicine (J.W., D.A.E.), Rush Institute for Healthy Aging (J.W., D.A.E.), Rush Alzheimer's Disease Center (R.S.W.), and Departments of Neurological Sciences and Behavioral Sciences (R.S.W.), Rush University Medical Center, Chicago, IL; and Department of Health Sciences, Community and Occupational Medicine (U.B.), University of Groningen, University Medical Center Groningen, the Netherlands
| | - Carlos F Mendes de Leon
- From the Department of Epidemiology (L.R.P., C.F.M.d.L.), University of Michigan, Ann Arbor; Department of Internal Medicine (J.W., D.A.E.), Rush Institute for Healthy Aging (J.W., D.A.E.), Rush Alzheimer's Disease Center (R.S.W.), and Departments of Neurological Sciences and Behavioral Sciences (R.S.W.), Rush University Medical Center, Chicago, IL; and Department of Health Sciences, Community and Occupational Medicine (U.B.), University of Groningen, University Medical Center Groningen, the Netherlands
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Dietary Patterns and Risk of Dementia: a Systematic Review and Meta-Analysis of Cohort Studies. Mol Neurobiol 2015; 53:6144-6154. [PMID: 26553347 DOI: 10.1007/s12035-015-9516-4] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 10/27/2015] [Indexed: 01/19/2023]
Abstract
Dietary patterns and some dietary components have been linked with dementia. We therefore performed a meta-analysis of available studies to determine whether there is an association between diet and risk of dementia. We included eligible articles and estimated risk ratio (RR) with 95 % confidence intervals (95 % CIs). Finally, there were 43 trials that met the inclusion standard. Some food intake was related with decrease of dementia, such as unsaturated fatty acids (RR: 0.84, 95 % CI: [0.74-0.95], P = 0.006), antioxidants (RR: 0.87, 95 % CI: [0.77-0.98], P = 0.026), vitamin B (RR: 0.72, 95 % CI: [0.54-0.96], P = 0.026), and the Mediterranean diet (MeDi) (RR: 0.69, 95 % CI: [0.57-0.84], P < 0.001). Some material intakes were related with increase of dementia, such as aluminum (RR: 2.24, 95 % CI: [1.49-3.37], P < 0.001), smoking (RR: 1.43, 95 % CI: [1.15-1.77], P = 0.001), and low levels of vitamin D (RR: 1.52, 95 % CI: [1.17-1.98], P = 0.002). The effect of some materials needs further investigation, such as fish (RR: 0.79, 95 % CI: [0.59-1.06], P = 0.113), vegetables and fruits (RR: 0.46, 95 % CI: [0.16-1.32], P = 0.149), and alcohol (RR: 0.74, 95 % CI: [0.55- 1.01], P = 0.056). Thus, the MeDi and higher consumption of unsaturated fatty acids, antioxidants, and B vitamins decrease the risk of dementia while smoking and higher consumption of aluminum increase the risk of dementia. Low levels of vitamin D were associated with cognitive decline. The effect of fish, vegetables, fruits, and alcohol needs further investigation. The findings will be of great significance to guide people to prevent dementia.
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Matz K, Teuschl Y, Firlinger B, Dachenhausen A, Keindl M, Seyfang L, Tuomilehto J, Brainin M, Schnider P, Bancher C, Pinter M, Kepplinger B, Asenbaum-Nan S, Oberndorfer S, Heiss WD. Multidomain Lifestyle Interventions for the Prevention of Cognitive Decline After Ischemic Stroke. Stroke 2015; 46:2874-80. [DOI: 10.1161/strokeaha.115.009992] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 08/13/2015] [Indexed: 11/16/2022]
Affiliation(s)
- Karl Matz
- From the Department for Clinical Neuroscience and Preventive Medicine, Danube University Krems, Krems, Austria (K.M., Y.T., B.F., A.D., M.K., L.S., J.T., M.B.); Department of Neurology, University Hospital Tulln, Tulln, Austria (K.M., M.B.); Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland (J.T.); Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia (J.T.); and Karl Landsteiner University of Health Sciences, Krems, Austria (M
| | - Yvonne Teuschl
- From the Department for Clinical Neuroscience and Preventive Medicine, Danube University Krems, Krems, Austria (K.M., Y.T., B.F., A.D., M.K., L.S., J.T., M.B.); Department of Neurology, University Hospital Tulln, Tulln, Austria (K.M., M.B.); Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland (J.T.); Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia (J.T.); and Karl Landsteiner University of Health Sciences, Krems, Austria (M
| | - Bernadette Firlinger
- From the Department for Clinical Neuroscience and Preventive Medicine, Danube University Krems, Krems, Austria (K.M., Y.T., B.F., A.D., M.K., L.S., J.T., M.B.); Department of Neurology, University Hospital Tulln, Tulln, Austria (K.M., M.B.); Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland (J.T.); Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia (J.T.); and Karl Landsteiner University of Health Sciences, Krems, Austria (M
| | - Alexandra Dachenhausen
- From the Department for Clinical Neuroscience and Preventive Medicine, Danube University Krems, Krems, Austria (K.M., Y.T., B.F., A.D., M.K., L.S., J.T., M.B.); Department of Neurology, University Hospital Tulln, Tulln, Austria (K.M., M.B.); Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland (J.T.); Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia (J.T.); and Karl Landsteiner University of Health Sciences, Krems, Austria (M
| | - Magdalena Keindl
- From the Department for Clinical Neuroscience and Preventive Medicine, Danube University Krems, Krems, Austria (K.M., Y.T., B.F., A.D., M.K., L.S., J.T., M.B.); Department of Neurology, University Hospital Tulln, Tulln, Austria (K.M., M.B.); Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland (J.T.); Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia (J.T.); and Karl Landsteiner University of Health Sciences, Krems, Austria (M
| | - Leonhard Seyfang
- From the Department for Clinical Neuroscience and Preventive Medicine, Danube University Krems, Krems, Austria (K.M., Y.T., B.F., A.D., M.K., L.S., J.T., M.B.); Department of Neurology, University Hospital Tulln, Tulln, Austria (K.M., M.B.); Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland (J.T.); Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia (J.T.); and Karl Landsteiner University of Health Sciences, Krems, Austria (M
| | - Jaakko Tuomilehto
- From the Department for Clinical Neuroscience and Preventive Medicine, Danube University Krems, Krems, Austria (K.M., Y.T., B.F., A.D., M.K., L.S., J.T., M.B.); Department of Neurology, University Hospital Tulln, Tulln, Austria (K.M., M.B.); Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland (J.T.); Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia (J.T.); and Karl Landsteiner University of Health Sciences, Krems, Austria (M
| | - Michael Brainin
- From the Department for Clinical Neuroscience and Preventive Medicine, Danube University Krems, Krems, Austria (K.M., Y.T., B.F., A.D., M.K., L.S., J.T., M.B.); Department of Neurology, University Hospital Tulln, Tulln, Austria (K.M., M.B.); Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland (J.T.); Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia (J.T.); and Karl Landsteiner University of Health Sciences, Krems, Austria (M
| | - Peter Schnider
- Department of Neurology, Landesklinikum Wr. Neustadt, Austria
| | | | - Michaela Pinter
- Department of Neurology Landesklinikum Horn/Allentsteig, Austria
| | | | | | | | - Wolf-Dieter Heiss
- Department for Clinical Neuroscience and Preventive Medicine, Danube University Krems, Austria
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Abstract
The rapid increase in the prevalence of dementia associated with ageing populations has stimulated interest in identifying modifiable lifestyle factors that could prevent cognitive impairment. One such potential preventive lifestyle factor is the Nordic diet that has been shown to reduce the risk of CVD; however, its effect on cognition has not been studied. The aim of the present study was to estimate the cross-sectional and longitudinal associations of the baseline Nordic diet with cognitive function at baseline and after a 4-year follow-up in a population-based random sample (n1140 women and men, age 57–78 years) as secondary analyses of the Finnish Dose-Responses to Exercise Training study. The Nordic diet score was created based on reported dietary components in 4-d food records. Cognition was assessed by the Consortium to Establish a Registry for Alzheimer's Disease (CERAD) neuropsychological battery and the Mini-mental State Examination (MMSE). The baseline Nordic diet score had been positively associated with Verbal Fluency (β 0·08 (95 % CI 0·00, 0·16),P= 0·039) and Word List Learning (β 0·06 (95 % CI 0·01, 0·10),P= 0·022) at 4 years but not with the Consortium to Establish a Registry for Alzheimer's Disease total score (CERAD-TS) or MMSE at 4 years, after adjustment for baseline cognitive scores, demographic factors and health-related factors. After excluding individuals with impaired cognition at baseline, the baseline Nordic diet score had also been positively associated with the CERAD-TS (β 0·10 (95 % CI 0·00, 0·20),P= 0·042) and MMSE (β 0·03 (95 % CI 0·00, 0·06),P= 0·039) at 4 years. These associations disappeared after further adjustment for energy intake. In conclusion, the Nordic diet might have a positive association with cognition in individuals with normal cognition.
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Martínez-Pinilla E, Oñatibia-Astibia A, Franco R. The relevance of theobromine for the beneficial effects of cocoa consumption. Front Pharmacol 2015; 6:30. [PMID: 25750625 PMCID: PMC4335269 DOI: 10.3389/fphar.2015.00030] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 02/03/2015] [Indexed: 01/25/2023] Open
Abstract
Cocoa consumption began in America and in the mid sixteenth Century it quickly spread to Europe. Beyond being considered a pleasant habit due to its rich sweet lingering taste, chocolate was considered a good nutrient and even a medicine. Traditionally, health benefits of cocoa have been related with the high content of antioxidants of Theobroma cocoa beans. However, the direct psychoactive effect due to methylxanthines in cocoa is notable. Theobromine and caffeine, in the proportions found in cocoa, are responsible for the liking of the food/beverage. These compounds influence in a positive way our moods and our state of alertness. Theobromine, which is found in higher amounts than caffeine, seems to be behind several effects attributed to cocoa intake. The main mechanisms of action are inhibition of phosphodiesterases and blockade of adenosine receptors. Further mechanisms are being explored to better understand the health benefits associated to theobromine consumption. Unlike what happens in other mammals -pets- included, theobromine is safe for humans and has fewer unwanted effects than caffeine. Therefore, theobromine deserves attention as one of the most attractive molecules in cocoa.
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Affiliation(s)
- Eva Martínez-Pinilla
- Laboratory of Cell and Molecular Neuropharmacology, Department of Neuroscience, Center for Applied Medical Research, University of Navarra , Pamplona, Navarra, Spain
| | | | - Rafael Franco
- Molecular Neurobiology Laboratory, Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona , Barcelona, Spain
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Kim JE, Shin S, Lee DW, Park JH, Hong EJ, Joung H. Association between compliance with dietary guidelines and Alzheimer's disease in Korean elderly. ACTA ACUST UNITED AC 2015. [DOI: 10.4163/jnh.2015.48.3.221] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Ji Eun Kim
- Department of Public Health Nutrition of Graduate School of Public Health, Seoul National University, Seoul 151-742, Korea
| | - Sangah Shin
- Institute of Health and Environment. Seoul National University, Seoul 151-742, Korea
- Department of Global Health Policy and AXA Department of Health and Human Security, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Dong Woo Lee
- Department of Psychiatry, Sanggye Paik Hospital, College of Medicine, Inje University, Seoul 139-707, Korea
| | - Joon Hyun Park
- Department of Psychiatry, Sanggye Paik Hospital, College of Medicine, Inje University, Seoul 139-707, Korea
| | - Eun Joo Hong
- Department of Economics and Finance, Hanyang Cyber University, Seoul 133-791, Korea
| | - Hyojee Joung
- Department of Public Health Nutrition of Graduate School of Public Health, Seoul National University, Seoul 151-742, Korea
- Institute of Health and Environment. Seoul National University, Seoul 151-742, Korea
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Kulmala J, Solomon A, Kåreholt I, Ngandu T, Rantanen T, Laatikainen T, Soininen H, Tuomilehto J, Kivipelto M. Association between mid- to late life physical fitness and dementia: evidence from the CAIDE study. J Intern Med 2014; 276:296-307. [PMID: 24444031 DOI: 10.1111/joim.12202] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVES This study investigated the association between perceived physical fitness at midlife, changes in perceived fitness during the three decades from mid- to late life and dementia risk. DESIGN Prospective cohort study. SETTING Cardiovascular risk factors, ageing and incidence of dementia (CAIDE) study. SUBJECTS Subjects were selected from four independent, random samples of population-based cardiovascular surveys and were first examined in 1972, 1977, 1982 or 1987, when they were on average 50 years old. The CAIDE target population included 3559 individuals. A random sample of 2000 individuals still alive in 1997 was drawn for re-examinations (performed in 1998 and 2005-2008) that consisted of cognitive assessments, with 1511 subjects participating in at least one re-examination. Dementia diagnoses were also confirmed from national registers for the entire target population. MAIN OUTCOME MEASURE All-cause dementia. RESULTS Poor physical fitness at midlife was associated with increased dementia risk in the entire target population [hazard ratio (HR), 1.5; 95% confidence interval (CI), 1.1-2.0]. In participants, odds ratio (OR) was 2.0 (95% CI, 0.9-4.0). This association was significant in apolipoprotein E ε4 allele (APOEε4) noncarriers (OR, 4.3; 95% CI, 1.4-13.3), men (HR, 1.8; 95% CI, 1.1-3.0) and people with chronic conditions (HR, 2.9; 95% CI, 1.3-6.6). A decline in fitness after midlife was also associated with dementia (OR, 3.0; 95% CI, 1.7-5.1), which was significant amongst both men and women and more pronounced in APOEε4 carriers (OR, 4.4; 95% CI, 2.1-9.1). CONCLUSIONS Perceived poor physical fitness reflects a combination of biological and lifestyle-related factors that can increase dementia risk. A simple question about perceived physical fitness may reveal at-risk individuals who could benefit from preventive interventions.
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Affiliation(s)
- J Kulmala
- Gerontology Research Center and Department of Health Sciences, University of Jyväskylä, Jyväskylä, Finland
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Dietary glycaemic load associated with cognitive performance in elderly subjects. Eur J Nutr 2014; 54:557-68. [PMID: 25034880 DOI: 10.1007/s00394-014-0737-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 07/03/2014] [Indexed: 01/06/2023]
Abstract
PURPOSE Ageing is associated with loss of cognitive function and an increased risk of dementia which is expected to place growing demands on health and long-term care providers. Among multiple causative factors, evidence suggests that cognitive impairment in older subjects may be influenced by diet. The objective of this study was to examine the association between dietary patterns, dietary glycaemic load (GL) and cognition in older Irish adults. METHODS Community-dwelling subjects (n 208; 94 males and 114 females; aged 64-93 years) were analysed. Dietary intake was assessed using a validated semi-quantitative food frequency questionnaire. Cognitive capacity was tested using the Mini-Mental State Examination (MMSE). The data were clustered to derive patterns of dietary intake. Multivariable-adjusted logistic and Poisson regression models were used to examine the relationship between dietary GL and MMSE score. RESULTS Elderly subjects consuming 'prudent' dietary patterns (high in fruit, vegetables, fish, low-fat dairy and salad dressings and low in red meat and white bread) had higher MMSE scores (better cognitive function) than those consuming 'Western' dietary pattern (high in red meat and white bread and low in fruit and vegetables; P < 0.05). Logistic and Poisson regression analyses both indicated that the MMSE score was inversely associated with the GL of the diet (P < 0.05) even after adjusting for age, gender, diabetes, hypertension, healthy food diversity, nutritional status, residential property price, cardiovascular medications and energy intake. CONCLUSION In this community-dwelling elderly Irish cohort, consumption of a high glycaemic diet is associated with poorer cognitive performance as assessed by the MMSE.
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Panza F, Solfrizzi V, Tortelli R, Resta F, Sabbà C, Logroscino G. Prevention of Late-life Cognitive Disorders: Diet-Related Factors, Dietary Patterns, and Frailty Models. Curr Nutr Rep 2014. [DOI: 10.1007/s13668-014-0080-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Exalto LG, Quesenberry CP, Barnes D, Kivipelto M, Biessels GJ, Whitmer RA. Midlife risk score for the prediction of dementia four decades later. Alzheimers Dement 2013; 10:562-70. [PMID: 24035147 DOI: 10.1016/j.jalz.2013.05.1772] [Citation(s) in RCA: 167] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Revised: 05/18/2013] [Accepted: 05/23/2013] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The objective of this study was to obtain external validation of the only available midlife dementia risk score cardiovascular risk factors , aging and dementia study (CAIDE) constituting age, education, hypertension, obesity, and hyperlipidemia in a larger, more diverse population. Our second aim was to improve the CAIDE risk score by additional midlife risk factors. METHODS This retrospective cohort study was conducted in an integrated health care delivery system. A total of 9480 Kaiser Permanente members who participated in a health survey study (age range, 40-55 years) from 1964 to 1973 were included in this study. Dementia diagnoses from primary care and medical specialist visits were collected from January 1, 1994 to January 16, 2006, using International Classification of Diseases 9 codes 290.0, 290.1 for "possible dementia," and 331.0 and 290.4 for "specialist confirmed dementia." Risk model prediction and validation were examined with the C statistic, net reclassification improvement, and integrated discrimination improvement. Dementia risk per sum score was calculated with Kaplan-Meier estimates. RESULTS A total of 2767 participants (25%) were diagnosed with any type of dementia, of which 1011 diagnoses (10.7%) were specialist-confirmed diagnoses. Average time between midlife examination and end of follow-up was 36.1 years. The CAIDE risk score replicated well with a C statistic of 0.75, quite similar to the original CAIDE C statistic of 0.78. The CAIDE score also predicted well within different race strata. Other midlife risk factors (central obesity, depressed mood, diabetes mellitus, head trauma, lung function, and smoking) did not improve predictability. The risk score allowed stratification of participants into those with 40-year low (9%) and high (29%) dementia risk. CONCLUSIONS A combination of modifiable vascular risk factors in midlife is highly predictive of the likelihood of dementia decades later. Possible dementia prevention strategies should point to a life course perspective on maintaining vascular health.
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Affiliation(s)
- Lieza G Exalto
- Kaiser Permanente Division of Research, Oakland, CA, USA; Department of Neurology, Rudolf Magnus Institute of Neuroscience, University Medical Centre Utrecht, Utrecht, Netherlands
| | | | | | - Miia Kivipelto
- Karolinska Aging Research Centre, Karolinska University, Stockholm Sweden
| | | | - Rachel A Whitmer
- Department of Neurology, Rudolf Magnus Institute of Neuroscience, University Medical Centre Utrecht, Utrecht, Netherlands.
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Otaegui-Arrazola A, Amiano P, Elbusto A, Urdaneta E, Martínez-Lage P. Diet, cognition, and Alzheimer's disease: food for thought. Eur J Nutr 2013; 53:1-23. [PMID: 23892520 DOI: 10.1007/s00394-013-0561-3] [Citation(s) in RCA: 134] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 07/11/2013] [Indexed: 02/07/2023]
Abstract
INTRODUCTION The prevention of Alzheimer's disease (AD) has become a real challenge due to its rising prevalence and the lack of an effective cure. Diet and nutrients have gained significant interest as potentially modifiable protective factors. PURPOSE The aim of this review is to provide an updated summary of evidence related to the effect of diet and nutritional factors on the risk of AD and cognitive aging, and discuss the potential mechanisms and confounding factors involved. METHODS A search was conducted in Medline and Web of Knowledge for epidemiological and clinical studies in the international literature from January 2000 to February 2013 using combinations of the following keywords: "Alzheimer's disease", "mild cognitive impairment", "cognitive function", "dietary factors", "omega-3", "antioxidants", "B vitamins", "dietary patterns", and "Mediterranean diet". RESULTS AND CONCLUSION Data from observational studies point to a protective role for certain nutrients, such as omega-3 fatty acids, antioxidants or B vitamins, and dietary patterns (Mediterranean diet). However, data from randomized controlled trials do not show a consistent effect. Whether confounding factors such as age, disease stage, other dietary components, cooking processes, and other methodological issues explain the divergent results remains to be established. Moreover, if certain nutrients protect against dementia, it is as yet unknown whether they may have a general effect on brain vascular health or directly interfere with the etiopathogenesis of AD.
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Affiliation(s)
- Ane Otaegui-Arrazola
- Department of Neurology, Fundación CITA-alzhéimer Fundazioa, Paseo Mikeletegi 71, Planta 1, 20009, San Sebastián, Guipúzcoa, Spain,
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Dietary patterns: a novel approach to examine the link between nutrition and cognitive function in older individuals. Nutr Res Rev 2012; 25:207-22. [PMID: 22874455 DOI: 10.1017/s0954422412000133] [Citation(s) in RCA: 124] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cognitive decline may lead to dementia whose most frequent cause is Alzheimer's disease (AD). Among the many potential risk factors of cognitive decline and AD, diet raises increasing interest. Most studies considered diet in the frame of a single nutrient approach with inconsistent results. A novel approach to examine the link between nutrition and cognitive function is the use of dietary patterns. The aim of the present review was to update and complete the body of knowledge about dietary patterns in relationship with various cognitive outcomes in the elderly. Two approaches can be used: a priori and a posteriori patterns. A priori patterns are defined by the adhesion to a pre-defined healthy diet using a score such as the Mediterranean diet (MeDi) score, the Healthy Eating Index, the Canadian Healthy Eating Index, the French National Nutrition and Health Programme (Programme National Nutrition Santé) Guideline Score (PNNS-GS), the Recommended Food Score (RFS) and Dietary Approaches to Stop Hypertension (DASH). MeDi score, RFS, PNNS-GS and DASH have been associated with lower risks of cognitive impairment, cognitive decline, and dementia or AD. Principal components analysis, reduced rank regression and clustering methods allow the identification of 'healthy' patterns associated with lower risk of cognitive decline. However, some studies did not report any associations with cognitive outcomes and results are discordant especially regarding MeDi and the risk of dementia. Several methodological challenges should be overcome to provide a higher level of evidence supporting the development of nutritional policies to prevent cognitive decline and AD.
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