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Xie J, Wang L, Xu Y, Ma Y, Zhang L, Yin W, Huang Y. Exertional heat stroke-induced changes in gut microbiota cause cognitive impairment in mice. BMC Microbiol 2024; 24:134. [PMID: 38654189 PMCID: PMC11040997 DOI: 10.1186/s12866-024-03276-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND The incidence of exertional heat stroke (EHS) escalates during periods of elevated temperatures, potentially leading to persistent cognitive impairment postrecovery. Currently, effective prophylactic or therapeutic measures against EHS are nonexistent. METHODS The selection of days 14 and 23 postinduction for detailed examination was guided by TEM of neuronal cells and HE staining of intestinal villi and the hippocampal regions. Fecal specimens from the ileum and cecum at these designated times were analyzed for changes in gut microbiota and metabolic products. Bioinformatic analyses facilitated the identification of pivotal microbial species and metabolites. The influence of supplementing these identified microorganisms on behavioral outcomes and the expression of functional proteins within the hippocampus was subsequently assessed. RESULTS TEM analyses of neurons, coupled with HE staining of intestinal villi and the hippocampal region, indicated substantial recovery in intestinal morphology and neuronal injury on Day 14, indicating this time point for subsequent microbial and metabolomic analyses. Notably, a reduction in the Lactobacillaceae family, particularly Lactobacillus murinus, was observed. Functional annotation of 16S rDNA sequences suggested diminished lipid metabolism and glycan biosynthesis and metabolism in EHS models. Mice receiving this intervention (EHS + probiotics group) exhibited markedly reduced cognitive impairment and increased expression of BDNF/TrKB pathway molecules in the hippocampus during behavioral assessment on Day 28. CONCLUSION Probiotic supplementation, specifically with Lactobacillus spp., appears to mitigate EHS-induced cognitive impairment, potentially through the modulation of the BDNF/TrKB signaling pathway within the hippocampus, illustrating the therapeutic potential of targeting the gut-brain axis.
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Affiliation(s)
- Jiangang Xie
- Department of Interventional Vascular, Xi'an No.3 Hospital, the Affiliated Hospital of Northwest University, Xi'an, Shaanxi Province, 710018, China
| | - Linxiao Wang
- College of Life Sciences, Northwest University, Xi'an, 710127, China
| | - Yunyun Xu
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China
| | - Yuexiang Ma
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China
| | - Lingqin Zhang
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China
| | - Wen Yin
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China.
| | - Yang Huang
- Department of Emergency, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, 710000, China.
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Ren M, Li H, Fu Z, Li Q. Centenarian-Sourced Lactobacillus casei Combined with Dietary Fiber Complex Ameliorates Brain and Gut Function in Aged Mice. Nutrients 2022; 14:324. [PMID: 35057509 PMCID: PMC8781173 DOI: 10.3390/nu14020324] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/04/2022] [Accepted: 01/10/2022] [Indexed: 12/12/2022] Open
Abstract
Dietary intervention could modulate age-related neurological disorders via the gut-brain axis. The potential roles of a probiotic and the dietary fiber complex (DFC) on brain and gut function in aged mice were investigated in this study. Lactobacillus casei LTL1361 and DFC were orally administrated for 12 weeks, and the learning and memory ability, as well as the oxidative parameters, inflammatory markers, gut barrier function and microbial metabolite short-chain fatty acids (SCFAs), were investigated. LTL1361 and DFC supplementation ameliorated cognitive ability, attenuated oxidative stress in brain and inflammation in serum and colon, ameliorated gut barrier function, and increased the SCFA concentrations and gene expression of SCFA receptors. The protective effect was more significantly enhanced in aged mice treated with the combination of LTL1361 and DFC than treated with LTL1361 or DFC alone. These results could be associated with the protected morphology of pyramidal nerve cells in hippocampus of mice brain and the downregulation of apoptosis marker caspase-3 in brain and upregulation of tight junction proteins in small intestine and colon. The results indicated that Lactobacillus casei LTL1361 and DFC alleviated age-related cognitive impairment, as well as protected brain and gut function. Lactobacillus casei LTL1361 and DFC might be used as novel and promising antiaging agents in human.
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Affiliation(s)
| | | | | | - Quanyang Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; (M.R.); (H.L.); (Z.F.)
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Mahalakshmi AM, Ray B, Tuladhar S, Hediyal TA, Raj P, Rathipriya AG, Qoronfleh MW, Essa MM, Chidambaram SB. Impact of Pharmacological and Non-Pharmacological Modulators on Dendritic Spines Structure and Functions in Brain. Cells 2021; 10:cells10123405. [PMID: 34943913 PMCID: PMC8699406 DOI: 10.3390/cells10123405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Dendritic spines are small, thin, hair-like protrusions found on the dendritic processes of neurons. They serve as independent compartments providing large amplitudes of Ca2+ signals to achieve synaptic plasticity, provide sites for newer synapses, facilitate learning and memory. One of the common and severe complication of neurodegenerative disease is cognitive impairment, which is said to be closely associated with spine pathologies viz., decreased in spine density, spine length, spine volume, spine size etc. Many treatments targeting neurological diseases have shown to improve the spine structure and distribution. However, concise data on the various modulators of dendritic spines are imperative and a need of the hour. Hence, in this review we made an attempt to consolidate the effects of various pharmacological (cholinergic, glutamatergic, GABAergic, serotonergic, adrenergic, and dopaminergic agents) and non-pharmacological modulators (dietary interventions, enriched environment, yoga and meditation) on dendritic spines structure and functions. These data suggest that both the pharmacological and non-pharmacological modulators produced significant improvement in dendritic spine structure and functions and in turn reversing the pathologies underlying neurodegeneration. Intriguingly, the non-pharmacological approaches have shown to improve intellectual performances both in preclinical and clinical platforms, but still more technology-based evidence needs to be studied. Thus, we conclude that a combination of pharmacological and non-pharmacological intervention may restore cognitive performance synergistically via improving dendritic spine number and functions in various neurological disorders.
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Affiliation(s)
- Arehally M. Mahalakshmi
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- SIG-Brain, Behaviour and Cognitive Neurosciences Research (BBRC), JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Bipul Ray
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Sunanda Tuladhar
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Tousif Ahmed Hediyal
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Praveen Raj
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
| | | | - M. Walid Qoronfleh
- Q3CG Research Institute (QRI), Research and Policy Division, 7227 Rachel Drive, Ypsilanti, MI 48917, USA;
| | - Musthafa Mohamed Essa
- Department of Food Science and Nutrition, CAMS, Sultan Qaboos University, Muscat 123, Oman
- Ageing and Dementia Research Group, Sultan Qaboos University, Muscat 123, Oman
- Biomedical Sciences Department, University of Pacific, Sacramento, CA 95211, USA
- Correspondence: (M.M.E.); (S.B.C.)
| | - Saravana Babu Chidambaram
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (A.M.M.); (B.R.); (S.T.); (T.A.H.); (P.R.)
- SIG-Brain, Behaviour and Cognitive Neurosciences Research (BBRC), JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
- Correspondence: (M.M.E.); (S.B.C.)
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Zhou D, Lv X, Wang Y, Liu H, Luo S, Li W, Huang G. Folic acid alleviates age-related cognitive decline and inhibits apoptosis of neurocytes in senescence-accelerated mouse prone 8: deoxythymidine triphosphate biosynthesis as a potential mechanism. J Nutr Biochem 2021; 97:108796. [PMID: 34102282 DOI: 10.1016/j.jnutbio.2021.108796] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 03/28/2021] [Accepted: 05/31/2021] [Indexed: 11/18/2022]
Abstract
Disturbed deoxythymidine triphosphate biosynthesis due to the inhibition of thymidylate synthase (TS) can lead to uracil accumulation in DNA, eventually, lead to neurocytes apoptosis and cognitive decline. Folic acid supplementation delayed cognitive decline and neurodegeneration in senescence-accelerated mouse prone 8 (SAMP8). Whether folic acid, one of nutrition factor, the effect on the expression of TS is unknown. The study aimed to determine if folic acid supplementation could alleviate age-related cognitive decline and apoptosis of neurocytes by increasing TS expression in SAMP8 mice. According to folic acid concentration in diet, four-month-old male SAMP8 mice were randomly divided into three different diet groups by baseline body weight in equal numbers. Moreover, to evaluate the role of TS, a TS inhibitor was injected intraperitoneal. Cognitive test, apoptosis rates of neurocytes, expression of TS, relative uracil level in telomere, and telomere length in brain tissue were detected. The results showed that folic acid supplementation decreased deoxyuridine monophosphate accumulation, uracil misincorporation in telomere, alleviated telomere length shorting, increased expression of TS, then decreased apoptosis rates of neurocytes, and alleviated cognitive performance in SAMP8 mice. Moreover, at the same concentration of folic acid, TS inhibitor raltitrexed increased deoxyuridine monophosphate accumulation, uracil misincorporation in telomere, and exacerbated telomere length shorting, decreased expression of TS, then increased apoptosis rates of neurocytes, and decreased cognitive performance in SAMP8 mice. In conclusion, folic acid supplementation alleviated age-related cognitive decline and inhibited apoptosis of neurocytes by increasing TS expression in SAMP8 mice.
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Affiliation(s)
- Dezheng Zhou
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Xin Lv
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Yalan Wang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Huan Liu
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Suhui Luo
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China
| | - Wen Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.
| | - Guowei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.
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Bramorska A, Zarzycka W, Podolecka W, Kuc K, Brzezicka A. Age-Related Cognitive Decline May Be Moderated by Frequency of Specific Food Products Consumption. Nutrients 2021; 13:2504. [PMID: 34444664 PMCID: PMC8399560 DOI: 10.3390/nu13082504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/18/2021] [Accepted: 07/18/2021] [Indexed: 02/06/2023] Open
Abstract
Our study aimed to evaluate whether the type of food products and the frequency of their consumption are associated with cognitive functioning in younger and older adults. The impact of diets that are high in added sugars and saturated fat on cognitive functioning, especially on memory, was at the center of our interest. Participants in the study were 204 healthy adults (aged 20-55) who performed a multitasking cognitive test and completed dietary and psychological questionnaires. Stepwise regression analysis with age and food consumption patterns as predictors, and the cognitive task performance as a dependent variable, revealed that cognitive task performance worsened with age. However, we found that the frequency of consuming different types of foods (healthy versus unhealthy dietary patterns) moderates the effects of age on cognitive functioning. Red meat and animal fat consumption were negatively correlated with cognitive performance, and this relation was dependent on the age of our participants. Conversely, white meat and fish consumption were positively related to memory. Different indices of dietary patterns (both positive and negative) were stronger predictors of cognitive performance in the older adult group. We interpret our results as evidence that diet may be a protective (or worsening) factor in age-related cognitive decline.
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Affiliation(s)
- Aleksandra Bramorska
- SWPS Institute of Psychology, University of Social Sciences and Humanities, 03-815 Warsaw, Poland; (W.Z.); (W.P.); (K.K.); (A.B.)
- Faculty of Information Technology, Polish-Japanese Academy of Information Technology, 02-008 Warsaw, Poland
| | - Wanda Zarzycka
- SWPS Institute of Psychology, University of Social Sciences and Humanities, 03-815 Warsaw, Poland; (W.Z.); (W.P.); (K.K.); (A.B.)
| | - Wiktoria Podolecka
- SWPS Institute of Psychology, University of Social Sciences and Humanities, 03-815 Warsaw, Poland; (W.Z.); (W.P.); (K.K.); (A.B.)
| | - Katarzyna Kuc
- SWPS Institute of Psychology, University of Social Sciences and Humanities, 03-815 Warsaw, Poland; (W.Z.); (W.P.); (K.K.); (A.B.)
| | - Aneta Brzezicka
- SWPS Institute of Psychology, University of Social Sciences and Humanities, 03-815 Warsaw, Poland; (W.Z.); (W.P.); (K.K.); (A.B.)
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Duplantier SC, Gardner CD. A Critical Review of the Study of Neuroprotective Diets to Reduce Cognitive Decline. Nutrients 2021; 13:nu13072264. [PMID: 34208980 PMCID: PMC8308213 DOI: 10.3390/nu13072264] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 12/18/2022] Open
Abstract
Alzheimer’s disease (AD) and other dementias are now the seventh leading cause of death in the world and are projected to affect 115.4 million people by 2050. Delaying the onset of AD by just five years is estimated to reduce the cost and prevalence of the disease by half. There is no cure for AD nor any drug therapies to halt its progression once the disease begins. Lifestyle choices including diet are being seen as a viable complementary therapy to reduce cognitive decline, the hallmark of AD. Mediterranean, DASH (Dietary Approaches to Stop Hypertension), and MIND (Mediterranean-DASH Intervention for Neurodegenerative Delay) diets have biological mechanisms supporting their potential neuroprotective benefits, but the findings of study outcomes about these benefits have been inconsistent. This paper analyzed five Randomized Clinical Trials (RCTs) (from 2000 to 2021) and 27 observational studies (from 2010 to 2021) focused on the link between cognitive health and the Mediterranean/DASH/MIND diets to identify gaps and challenges that could lead to inconsistent results. These include a lack of accuracy in assessing food intake, multiple dietary pattern scoring systems, a shifting metric among studies focused on the Mediterranean diet, a lack of standards in the tools used to assess cognitive decline, and studies that were underpowered or had follow-up periods too short to detect cognitive change. Insights from these gaps and challenges are summarized in recommendations for future RCTs, including both pragmatic and explanatory RCTs.
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Affiliation(s)
- Sally C. Duplantier
- The USC Leonard School of Gerontology, University of Southern California, 3715 McClintock Ave., Los Angeles, CA 90089, USA;
| | - Christopher D. Gardner
- Stanford Prevention Research Center, Department of Medicine, School of Medicine, Stanford University, Stanford, CA 94305, USA
- Correspondence:
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Ruiz-Gonzalez C, Roman P, Rueda-Ruzafa L, Rodriguez-Arrastia M, Cardona D. Effects of probiotics supplementation on dementia and cognitive impairment: A systematic review and meta-analysis of preclinical and clinical studies. Prog Neuropsychopharmacol Biol Psychiatry 2021; 108:110189. [PMID: 33285265 DOI: 10.1016/j.pnpbp.2020.110189] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 11/20/2020] [Accepted: 11/27/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Dementia is a chronic syndrome characterized by cognitive and behavioral symptoms, which may include short-term memory impairment and problems related to orientation, language, attention and perception. Although cognitive impairment (CI) is increasingly considered the main geriatric condition predisposing to dementia, its early management could still promote symptomatic relief and delay disease progression. Recently, probiotics treatment has been studied as a potential new therapeutic approach to attenuate dementia-related decline and mild cognitive impairment (MCI). Therefore, we conducted a systematic review and meta-analysis to review and analyse the available evidence on the effect of probiotics on MCI and dementia. METHODS A systematic search and meta-analysis were performed on Cochrane Library, ProQuest, Web of Science, PubMed-Medline, The Cumulative Index to Nursing and Allied Health Literature (CINAHL), Scopus, ScienceDirect and Open Grey. Search terms included diagnoses of interest (dementia and MCI) and the intervention of interest (probiotic, lactobacillus and bifidobacterium). Original articles reporting the use of probiotics supplementation for the treatment of dementia and MCI were screened and studied independently by two researchers. After that, a random and fixed effects model was used at the meta-analysis stage of the results to determine its effect size. RESULTS A total of 16 articles (10 preclinical and 6 clinical) that met the inclusion criteria for the systematic review, and 15 articles (10 preclinical and 5 clinical) for meta-analysis were finally included. In humans, the administration of probiotics improved general cognitive function after the treatment period. Similarly, an improvement in memory and spatial/non-spatial learning was identified in the probiotic group of animals compared to the control group. On the other hand, the results showed an increase in the levels of the brain-derived neurotrophic factor, an improvement in the inflammatory profile and regulation of cellular biomarkers after probiotics administration. CONCLUSION Probiotics supplementation could be an adequate therapeutic strategy both in dementia and CI based on clinical and preclinical evidence. However, it is therefore important to translate preclinical data into clinical data where the evidence is more limited.
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Affiliation(s)
- Cristofer Ruiz-Gonzalez
- Department of Nursing Science, Physiotherapy and Medicine, University of Almería, Ctra. Sacramento s/n, La Cañada, 04120 Almería, Spain
| | - Pablo Roman
- Department of Nursing Science, Physiotherapy and Medicine, University of Almería, Ctra. Sacramento s/n, La Cañada, 04120 Almería, Spain; Health Research Center, University of Almería, Spain; Health Sciences Research Group (CTS-451), University of Almería, Spain.
| | - Lola Rueda-Ruzafa
- Laboratory of Neuroscience, CINBIO, University of Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Miguel Rodriguez-Arrastia
- Faculty of Health Sciences, Pre-Department of Nursing, Jaume I University, 12071 Castello de la Plana, Spain; Research Group CYS, Faculty of Health Sciences, Jaume I University, 12071 Castello de la Plana, Spain
| | - Diana Cardona
- Department of Nursing Science, Physiotherapy and Medicine, University of Almería, Ctra. Sacramento s/n, La Cañada, 04120 Almería, Spain; Health Research Center, University of Almería, Spain
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Myette-Côté É, St-Pierre V, Beaulieu S, Castellano CA, Fortier M, Plourde M, Bocti C, Fulop T, Cunnane SC. The effect of a 6-month ketogenic medium-chain triglyceride supplement on plasma cardiometabolic and inflammatory markers in mild cognitive impairment. Prostaglandins Leukot Essent Fatty Acids 2021; 169:102236. [PMID: 33906081 DOI: 10.1016/j.plefa.2020.102236] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Mild cognitive impairment (MCI) is often accompanied by metabolic abnormalities and inflammation that might play a role in the development of cognitive impairment. The use of ketogenic medium-chain triglycerides (kMCT) to improve cognition in this population has shown promising results but remains controversial because of the potentially detrimental effect of elevated intake of saturated fatty acids on cardiovascular (CV) health and perhaps inflammatory processes. The primary aim of this secondary data analysis report is to describe changes in cardiometabolic markers and peripheral inflammation during a 6-month kMCT intervention in MCI. METHODS Thirty-nine participants with MCI completed the intervention of 30 g/day of either a kMCT drink or calorie-matched placebo (high-oleic acid) for 6 months. Plasma concentrations of cardiometabolic and inflammatory markers were collected before (fasting state) and after the intervention (2 h following the last drink). RESULTS A mixed model ANOVA analysis revealed a time by group interaction for ketones (P < 0.001), plasma 8:0 and 10:0 acids (both P < 0.001) and IL-8 (P = 0.002) with follow up comparison revealing a significant increase in the kMCT group (+48%, P = 0.005), (+3,800 and +4,900%, both P < 0.001) and (+147%, P < 0.001) respectively. A main effect of time was observed for insulin (P = 0.004), triglycerides (P = 0.011) and non-esterified fatty acids (P = 0.036). CONCLUSION Under these study conditions, 30 g/d of kMCT taken for six months and up to 2-hour before post-intervention testing had minimal effect on an extensive profile of circulating cardiometabolic and inflammatory markers as compared to a placebo calorie-matched drink. Our results support the safety kMCT supplementation in individuals with MCI. The clinical significance of the observed increase in circulating IL-8 levels is presently unknown and awaits future studies.
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Affiliation(s)
- Étienne Myette-Côté
- Research Center on Aging, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada; Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada.
| | - Valérie St-Pierre
- Research Center on Aging, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada
| | - Sandrine Beaulieu
- Research Center on Aging, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada; Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
| | | | - Mélanie Fortier
- Research Center on Aging, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada
| | - Mélanie Plourde
- Research Center on Aging, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada; Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Christian Bocti
- Research Center on Aging, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada; Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Tamas Fulop
- Research Center on Aging, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada; Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Stephen C Cunnane
- Research Center on Aging, CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada; Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada; Department of Pharmacology & Physiology, Université de Sherbrooke, Sherbrooke, QC, Canada
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Hassanen EI, Ibrahim MA, Hassan AM, Mehanna S, Aljuaydi SH, Issa MY. Neuropathological and Cognitive Effects Induced by CuO-NPs in Rats and Trials for Prevention Using Pomegranate Juice. Neurochem Res 2021; 46:1264-1279. [PMID: 33570729 DOI: 10.1007/s11064-021-03264-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/01/2021] [Accepted: 01/30/2021] [Indexed: 12/16/2022]
Abstract
Copper oxide nanoparticles (CuO-NPs) are extensively utilized in several industries and in pharmaceutical production. This excess exposure elevates the concern about its expected poisonous impacts on humans and animals. Pomegranate juice (PJ) is a natural source of polyphenols and exhibits potent antioxidant activities. Our experiment intended to explore the neurobehavioral and toxicopathological impacts of CuO-NPs and to explain the mechanistic role of PJ to reduce their toxicity. Thirty Wistar albino rats received the subsequent materials through oral gavage, every day for 28d: (1) normal saline, (2) 3 mL/kg bwt PJ, (3) 6 mL/kg bwt PJ, (4) 300 mg/kg bwt CuO-NPs, (5) CuO-NPs + 3 mL/kg bwt PJ, (6) CuO-NPs + 6 mL/kg bwt PJ. Continuous exposure to CuO-NPs caused a significant elevation of MDA levels and reduction of total antioxidant capacity associated with remarkable pathological alterations in all brain regions including cerebrum, hippocampus and cerebellum. Progressive decline of memory along with cognitive and psychiatric disturbances were observed in rats exposed to CuO-NPs not in PJ co-treated rats. Continuous exposure to CuO-NPs caused over expression of the immunohistochemical markers of caspase-3, iNOS and GFAP altogether with DAN fragmentation and down-regulation of HO-1 and Nrf2 gene in the whole brain tissues. Conversely, rats co-treated with PJ showed dose dependent improvements in the entire toxicological, behavioral, and pathological parameters. We showed that PJ had the ability to reduce the oxidative stress damage via up-regulation of HO-1 and Nrf2 genes in the brain. So that PJ had the ability to protect the brain and DNA from further damage.
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Affiliation(s)
- Eman I Hassanen
- Faculty of Veterinary Medicine, Pathology Department, Cairo University, P.O. Box 12211, Giza, Egypt.
| | - Marwa A Ibrahim
- Faculty of Veterinary Medicine, Biochemistry Department, Cairo University, Giza, Egypt
| | - Azza M Hassan
- Faculty of Veterinary Medicine, Pathology Department, Cairo University, P.O. Box 12211, Giza, Egypt
| | - Sally Mehanna
- Faculty of Veterinary Medicine, Department of Animal Hygiene and Management, Cairo University, Giza, Egypt
| | - Samira H Aljuaydi
- Faculty of Veterinary Medicine, Biochemistry Department, Cairo University, Giza, Egypt
| | - Marwa Y Issa
- Faculty of Pharmacy, Pharmacognosy Department, Cairo University, Giza, Egypt
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Kaliszewska A, Allison J, Martini M, Arias N. Improving Age-Related Cognitive Decline through Dietary Interventions Targeting Mitochondrial Dysfunction. Int J Mol Sci 2021; 22:ijms22073574. [PMID: 33808221 PMCID: PMC8036520 DOI: 10.3390/ijms22073574] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/13/2022] Open
Abstract
Aging is inevitable and it is one of the major contributors to cognitive decline. However, the mechanisms underlying age-related cognitive decline are still the object of extensive research. At the biological level, it is unknown how the aging brain is subjected to progressive oxidative stress and neuroinflammation which determine, among others, mitochondrial dysfunction. The link between mitochondrial dysfunction and cognitive impairment is becoming ever more clear by the presence of significant neurological disturbances in human mitochondrial diseases. Possibly, the most important lifestyle factor determining mitochondrial functioning is nutrition. Therefore, with the present work, we review the latest findings disclosing a link between nutrition, mitochondrial functioning and cognition, and pave new ways to counteract cognitive decline in late adulthood through diet.
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Affiliation(s)
- Aleksandra Kaliszewska
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, Denmark Hill, London SE5 8AF, UK; (A.K.); (J.A.)
| | - Joseph Allison
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, Denmark Hill, London SE5 8AF, UK; (A.K.); (J.A.)
| | - Matteo Martini
- Department of Psychology, University of East London, London E154LZ, UK;
| | - Natalia Arias
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, Denmark Hill, London SE5 8AF, UK; (A.K.); (J.A.)
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33005 Oviedo, Spain
- Correspondence:
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do Rosario VA, Fitzgerald Z, Broyd S, Paterson A, Roodenrys S, Thomas S, Bliokas V, Potter J, Walton K, Weston-Green K, Yousefi M, Williams D, Wright IMR, Charlton K. Food anthocyanins decrease concentrations of TNF-α in older adults with mild cognitive impairment: A randomized, controlled, double blind clinical trial. Nutr Metab Cardiovasc Dis 2021; 31:950-960. [PMID: 33546942 DOI: 10.1016/j.numecd.2020.11.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 11/09/2020] [Accepted: 11/24/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND & AIMS Vascular function, blood pressure and inflammation are involved in the pathogenesis of major chronic diseases, including both cardiovascular disease (CVD) and mild cognitive impairment (MCI). This study investigated the effects of food anthocyanins on microvascular function, 24-h ambulatory blood pressure (ABP) and inflammatory biomarkers in older adults with MCI. METHODS AND RESULTS Thirty-one participants with MCI [19 female, 12 male, mean age 75.3 (SD 6.9) years and body mass index 26.1 (SD 3.3) kg/m2], participated in a randomized, controlled, double-blind clinical trial (Australian New Zealand Clinical Trials Registry: ACTRN12618001184268). Participants consumed 250 mL fruit juice daily for 8 weeks, allocated into three groups: a) high dose anthocyanins (201 mg); b) low dose anthocyanins (47 mg); c) control. Microvascular function (Laser Speckle Contrast Imaging combined with a post-occlusive reactive hyperaemia test), 24h ABP and serum inflammatory biomarkers were assessed before and after the nutritional intervention. RESULTS Participants in the high anthocyanins group had a reduction in serum tumor necrosis factor alpha (TNF-α) (P = 0.002) compared to controls and the low anthocyanins group (all P's > 0.05). Serum IL-6, IL-1β, c-reactive protein, and parameters of microvascular function and 24h ABP were not altered by any treatment. CONCLUSION A daily high dose of fruit-based anthocyanins for 8 weeks reduced concentrations of TNF-α in older adults with MCI. Anthocyanins did not alter other inflammatory biomarkers, microvascular function or blood pressure parameters. Further studies with a larger sample size and longer period of follow-up are required to elucidate whether this change in the immune response will alter CVD risk and progression of cognitive decline.
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Affiliation(s)
- Vinicius A do Rosario
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia.
| | - Zoe Fitzgerald
- Department of Rehabilitation & Medical Psychology, Port Kembla Hospital, Warrawong, NSW, 2502, Australia.
| | - Samantha Broyd
- Department of Rehabilitation & Medical Psychology, Port Kembla Hospital, Warrawong, NSW, 2502, Australia.
| | - Amelia Paterson
- Department of Rehabilitation & Medical Psychology, Port Kembla Hospital, Warrawong, NSW, 2502, Australia.
| | - Steven Roodenrys
- School of Psychology, Faculty of Arts, Social Sciences and Humanities, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - Susan Thomas
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia.
| | - Vida Bliokas
- Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia; School of Psychology, Faculty of Arts, Social Sciences and Humanities, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - Jan Potter
- Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia.
| | - Karen Walton
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia.
| | - Katrina Weston-Green
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia; Molecular Horizons, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - Maziar Yousefi
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia.
| | - David Williams
- Department of Agriculture and Fisheries, Brisbane, QLD, 4108, Australia.
| | - Ian M R Wright
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia; College of Medicine and Dentistry, James Cook University, Cairns, QLD, 4870, Australia.
| | - Karen Charlton
- School of Medicine, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, 2522, Australia; Illawarra Health & Medical Research Institute, Wollongong, NSW, 2522, Australia.
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Singh P, Sivanandam TM, Konar A, Thakur MK. Role of nutraceuticals in cognition during aging and related disorders. Neurochem Int 2020; 143:104928. [PMID: 33285273 DOI: 10.1016/j.neuint.2020.104928] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/05/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022]
Abstract
Cognitive abilities are compromised with advancing age posing a great risk for the development of dementia and other related brain disorders. Genetic susceptibility as well as environmental exposures determine the fate of cognitive aging and its transition to pathological states. Emerging epidemiological and observational studies have revealed the importance of lifestyle factors including dietary patterns and nutritional intake in the maintenance of cognitive health and reducing the risk of neurodegenerative disorders. In this context, nutraceutical interventions have gained considerable attention in preventing age-related cognitive deficits and counteracting pathological processes. Nutraceuticals include dietary plants and derivatives, food supplements and processed foods with nutritional and pharmaceutical values. The present review highlights the importance of nutraceuticals in attenuating cognitive aging and its progression to dementia, with specific emphasis on chemical constituents, neurocognitive properties and mechanism of action.
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Affiliation(s)
- Padmanabh Singh
- Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Thamil Mani Sivanandam
- Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Arpita Konar
- CSIR-Institute of Genomics & Integrative Biology, New Delhi, 110025, India.
| | - M K Thakur
- Centre of Advanced Study, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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Roberts SB, Franceschini MA, Silver RE, Taylor SF, de Sa AB, Có R, Sonco A, Krauss A, Taetzsch A, Webb P, Das SK, Chen CY, Rogers BL, Saltzman E, Lin PY, Schlossman N, Pruzensky W, Balé C, Chui KKH, Muentener P. Effects of food supplementation on cognitive function, cerebral blood flow, and nutritional status in young children at risk of undernutrition: randomized controlled trial. BMJ 2020; 370:m2397. [PMID: 32699176 PMCID: PMC7374799 DOI: 10.1136/bmj.m2397] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/04/2020] [Indexed: 01/06/2023]
Abstract
OBJECTIVE To assess the effects of food supplementation on improving working memory and additional measures including cerebral blood flow in children at risk of undernutrition. DESIGN Randomized controlled trial. SETTING 10 villages in Guinea-Bissau. PARTICIPANTS 1059 children aged 15 months to 7 years; children younger than 4 were the primary population. INTERVENTIONS Supervised isocaloric servings (≈1300 kJ, five mornings each week, 23 weeks) of a new food supplement (NEWSUP, high in plant polyphenols and omega 3 fatty acids, within a wide variety and high fortification of micronutrients, and a high protein content), or a fortified blended food (FBF) used in nutrition programs, or a control meal (traditional rice breakfast). MAIN OUTCOME MEASUREMENTS The primary outcome was working memory, a core executive function predicting long term academic achievement. Additional outcomes were hemoglobin concentration, growth, body composition, and index of cerebral blood flow (CBFi). In addition to an intention-to-treat analysis, a predefined per protocol analysis was conducted in children who consumed at least 75% of the supplement (820/925, 89%). The primary outcome was assessed by a multivariable Poisson model; other outcomes were assessed by multivariable linear mixed models. RESULTS Among children younger than 4, randomization to NEWSUP increased working memory compared with the control meal (rate ratio 1.20, 95% confidence interval 1.02 to 1.41, P=0.03), with a larger effect in the per protocol population (1.25, 1.06 to 1.47, P=0.009). NEWSUP also increased hemoglobin concentration among children with anemia (adjusted mean difference 0.65 g/dL, 95% confidence interval 0.23 to 1.07, P=0.003) compared with the control meal, decreased body mass index z score gain (-0.23, -0.43 to -0.02, P=0.03), and increased lean tissue accretion (2.98 cm2, 0.04 to 5.92, P=0.046) with less fat (-5.82 cm2, -11.28 to -0.36, P=0.04) compared with FBF. Additionally, NEWSUP increased CBFi compared with the control meal and FBF in both age groups combined (1.14 mm2/s×10-8, 0.10 to 2.23, P=0.04 for both comparisons). Among children aged 4 and older, NEWSUP had no significant effect on working memory or anemia, but increased lean tissue compared with FBF (4.31 cm2, 0.34 to 8.28, P=0.03). CONCLUSIONS Childhood undernutrition is associated with long term impairment in cognition. Contrary to current understanding, supplementary feeding for 23 weeks could improve executive function, brain health, and nutritional status in vulnerable young children living in low income countries. Further research is needed to optimize nutritional prescriptions for regenerative improvements in cognitive function, and to test effectiveness in other vulnerable groups. TRIAL REGISTRATION ClinicalTrials.gov NCT03017209.
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Affiliation(s)
- Susan B Roberts
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Maria A Franceschini
- Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
| | - Rachel E Silver
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Salima F Taylor
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Augusto Braima de Sa
- International Partnership for Human Development, Leesburg, VA, USA and Bissau, Guinea Bissau
| | - Raimundo Có
- International Partnership for Human Development, Leesburg, VA, USA and Bissau, Guinea Bissau
| | - Aliu Sonco
- International Partnership for Human Development, Leesburg, VA, USA and Bissau, Guinea Bissau
| | | | - Amy Taetzsch
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Patrick Webb
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Sai Krupa Das
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - C-Y Chen
- Biofortis, Mérieux NutriSciences, Addison, IL, USA
| | - Beatrice L Rogers
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Edward Saltzman
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Pei-Yi Lin
- Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
| | - Nina Schlossman
- Gerald J and Dorothy R Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
- Global Food and Nutrition, Washington, DC, USA
| | - William Pruzensky
- International Partnership for Human Development, Leesburg, VA, USA and Bissau, Guinea Bissau
| | - Carlito Balé
- International Partnership for Human Development, Leesburg, VA, USA and Bissau, Guinea Bissau
| | - Kenneth Kwan Ho Chui
- Department of Public Health and Community Medicine, Tufts School of Medicine, Boston, MA, USA
| | - Paul Muentener
- Department of Psychology, Tufts University, Medford, MA, USA
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Kim HJ, Sohn IW, Kim YS, Jun JB. The Different Relationship between Homocysteine and Uric Acid Levels with Respect to the MTHFR C677T Polymorphism According to Gender in Patients with Cognitive Impairment. Nutrients 2020; 12:nu12041147. [PMID: 32325916 PMCID: PMC7230180 DOI: 10.3390/nu12041147] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 11/16/2022] Open
Abstract
In an elderly population with cognitive impairment, we investigated the association between serum uric acid (sUA) and serum homocysteine (sHcy), known risk factors for cerebrovascular disease. We also investigated the potential effect of the C677T polymorphism in the gene encoding methylenetetrahydrofolate reductase (MTHFR) to the sUA level in different dementia types. Participants underwent a battery of tests including measurements of sUA, sHcy, folic acid, and vitamin B12 as well as genotyping of the MTHFR locus. Data from 861 subjects (597 females to 264 males) were retrospectively analyzed. Subjects with hyperhomocysteinemia had lower serum folic acid and vitamin B12 and higher sUA than those with normal sHcy. sUA was significantly associated with serum creatinine, HbA1c, and sHcy regardless of gender. The TT genotype was found to be associated with hyperhomocysteinemia in both genders (p = 0.001). The levels of hyperlipidemia, sHcy, and sUA differed according to dementia subtypes. High sUA were associated with hyperhomocystenemia in TT genotype only in dementia with vascular lesion. This study reveals that sUA is positively associated with sHcy. We speculate that the two markers synergistically increase cerebrovascular burden and suggested that dietary intervention for sUA and sHcy would be helpful for cognitive decline with vascular lesion.
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Affiliation(s)
- Hee-Jin Kim
- Department of Neurology, Hanyang University, 222, Wansimni-ro, Seondong-gu, Seoul 04763, Korea;
- Correspondence: (H.-J.K.); (J.-B.J.); Tel.: +82-2-2290-9216 (H.-J.K.); +82-2-2290-8374 (J.-B.J.)
| | - Il Woong Sohn
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, 222-1, Wansimni-ro, Seondong-gu, Seoul 04763, Korea;
| | - Young Seo Kim
- Department of Neurology, Hanyang University, 222, Wansimni-ro, Seondong-gu, Seoul 04763, Korea;
| | - Jae-Bum Jun
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, 222-1, Wansimni-ro, Seondong-gu, Seoul 04763, Korea;
- Correspondence: (H.-J.K.); (J.-B.J.); Tel.: +82-2-2290-9216 (H.-J.K.); +82-2-2290-8374 (J.-B.J.)
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García-Serrano A, Tomé-Carneiro J, Carmen Crespo M, Visitación Calvo M, Pereda-Pérez I, Baliyan S, Burgos-Ramos E, Montero O, Dávalos A, Venero C, Visioli F, Fontecha J. Concentrates of buttermilk and krill oil improve cognition in aged rats. Prostaglandins Leukot Essent Fatty Acids 2020; 155:102077. [PMID: 32145667 DOI: 10.1016/j.plefa.2020.102077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/15/2020] [Accepted: 02/18/2020] [Indexed: 02/03/2023]
Abstract
Cognitive decline is one of the hallmarks of aging and can vary from mild cognitive impairment to dementia to Alzheimer's disease. In addition to some lifestyle interventions, there is room for the use of nutraceuticals/functional foods as pharma-nutritional tools to lessen the burden of cognitive decline before it worsens. We previously reported the promising molecular actions of milk fat globule membranes and krill oil concentrates in a rat model of aging. In this study, we concentrated on the activities on cognition, using an array of validated tests. We also performed lipidomic analyses of plasma, erythrocytes, and different brain areas. We report lower emotional memory (contextual fear conditioning) in aged rats supplemented with concentrates of polar lipids from buttermilk or krill oil at doses that approximate human consumption. No other behavioral parameter was significantly influenced by the supplements, calling for further research to confirm or not the purported salubrious activities of polar lipids, namely those rich in ω3 long-chain polyunsaturated fatty acids, on cognitive decline.
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Affiliation(s)
- Alba García-Serrano
- Bioactivity and Food Analysis Department, CIAL, CSIC-UAM, Madrid 28049, Spain
| | - Joao Tomé-Carneiro
- Bioactivity and Food Analysis Department, CIAL, CSIC-UAM, Madrid 28049, Spain; Bioactive Ingredients Food Group, IMDEA-Food, CEI UAM+CSIC, Madrid, Spain
| | - M Carmen Crespo
- Bioactive Ingredients Food Group, IMDEA-Food, CEI UAM+CSIC, Madrid, Spain
| | - M Visitación Calvo
- Bioactivity and Food Analysis Department, CIAL, CSIC-UAM, Madrid 28049, Spain
| | - Inmaculada Pereda-Pérez
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Spain
| | - Shishir Baliyan
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Spain
| | - Emma Burgos-Ramos
- Área de Bioquímica, Universidad de Castilla-La-Mancha, Toledo, Spain
| | - Olimpio Montero
- Centro para el Desarrollo de la Biotecnología, CSIC, Parque Tecnológico de Boecillo, Valladolid, Spain
| | - Alberto Dávalos
- Bioactive Ingredients Food Group, IMDEA-Food, CEI UAM+CSIC, Madrid, Spain
| | - César Venero
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Spain
| | - Francesco Visioli
- Bioactive Ingredients Food Group, IMDEA-Food, CEI UAM+CSIC, Madrid, Spain; Department of Molecular Medicine, University of Padova, Padova, 35121, Italy.
| | - Javier Fontecha
- Bioactivity and Food Analysis Department, CIAL, CSIC-UAM, Madrid 28049, Spain
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Schwantje M, Verhagen LM, van Hasselt PM, Fuchs SA. Glucose transporter type 1 deficiency syndrome and the ketogenic diet. J Inherit Metab Dis 2020; 43:216-222. [PMID: 31605543 PMCID: PMC7078900 DOI: 10.1002/jimd.12175] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 08/28/2019] [Accepted: 09/20/2019] [Indexed: 01/11/2023]
Abstract
Glucose transporter type 1 deficiency syndrome (GLUT1DS) is characterised by deficient glucose transport over the blood-brain barrier and reduced glucose availability in the brain. This causes epilepsy, movement disorders, and cognitive impairment. Treatment with ketogenic diet provides ketones as alternative energy source. However, not all GLUT1DS patients are on dietary treatment (worldwide registry: 77/181 [43%] of patients). The current 25-year experience allows evaluation of effects and tolerability of dietary treatment for GLUT1DS. To this end, literature was searched up to January 2019 for individual case reports and series reporting (side) effects of dietary treatment for GLUT1DS. Upon aggregation of data for analysis, we identified 270 GLUT1DS patients with dietary treatment with a mean follow-up of 53 months. Epilepsy improved for 83% of 230 patients and remained unchanged for 17%, movement disorders improved for 82% of 127 patients and remained unchanged for 17%, and cognition improved for 59% of 58 patients and remained stable for 40%. Effects on epilepsy were seen within days/weeks and were most pronounced in patients with early treatment initiation. Effects on movement disorders were noticed within months and were strongest in patients with higher cerebrospinal fluid-to-blood glucose ratio. Although side effects were minimal, 18% of 270 patients reported poor compliance. In individual patients, symptoms deteriorated upon low ketosis, poor compliance, or treatment discontinuation. Based on the good tolerability and strong favourable effect of dietary treatment on GLUT1DS symptoms, we advocate dietary treatment in all GLUT1DS patients and prompt diagnosis or screening to allow early treatment.
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Affiliation(s)
- Marit Schwantje
- Department of Metabolic Diseases, Wilhelmina Children's HospitalUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Lilly M. Verhagen
- Department of Infectious diseases and Immunology, Wilhelmina Children's HospitalUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Peter M. van Hasselt
- Department of Metabolic Diseases, Wilhelmina Children's HospitalUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Sabine A. Fuchs
- Department of Metabolic Diseases, Wilhelmina Children's HospitalUniversity Medical Center UtrechtUtrechtThe Netherlands
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Xiao J, Katsumata N, Bernier F, Ohno K, Yamauchi Y, Odamaki T, Yoshikawa K, Ito K, Kaneko T. Probiotic Bifidobacterium breve in Improving Cognitive Functions of Older Adults with Suspected Mild Cognitive Impairment: A Randomized, Double-Blind, Placebo-Controlled Trial. J Alzheimers Dis 2020; 77:139-147. [PMID: 32623402 PMCID: PMC7592675 DOI: 10.3233/jad-200488] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2020] [Indexed: 01/28/2023]
Abstract
BACKGROUND Probiotics use has been associated with modulation of inflammation and considered as a possible intervention for CNS diseases such as mild cognitive impairment (MCI) and dementia. OBJECTIVE We aimed to test the effect of the probiotic strain, Bifidobacterium breve A1 (MCC1274), to restore cognition in a physically healthy, suspected MCI population. METHODS In this randomized, double-blind, placebo-controlled trial, 80 healthy older adults suffering from MCI were divided into two even groups to receive once daily either probiotic (B. breve A1, 2×1010 CFU) or placebo for 16 weeks using a computer-generated algorithm. Cognitive functions were assessed by the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) and the Japanese version of the MCI Screen (JMCIS) tests before and after the study as primary and secondary endpoints, respectively. RESULTS 79 participants completed the study, and no adverse events were observed. RBANS total score was significantly improved in probiotic group compared with placebo (mean between-group difference 11.3 [95% CI 6.7 to 15.8]; p < 0.0001) after 16 weeks of consumption, in particular with significant improvement in domain scores of immediate memory, visuospatial/constructional, and delayed memory (p < 0.0001), in both intention-to-treat (ITT) analysis and per-protocol (PP) analysis. JMCIS score was also improved versus placebo in ITT analysis (p = 0.052) and PP analysis (p = 0.036). CONCLUSION Study results indicate B. breve A1 is a safe and effective approach for improving memory functions of suspected MCI subjects.
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Affiliation(s)
- Jinzhong Xiao
- Morinaga Milk Industry Co., Ltd., Next Generation Science Institute, Kanagawa, Japan
| | - Noriko Katsumata
- Morinaga Milk Industry Co., Ltd., Next Generation Science Institute, Kanagawa, Japan
| | - Francois Bernier
- Morinaga Milk Industry Co., Ltd., Next Generation Science Institute, Kanagawa, Japan
| | - Kazuya Ohno
- Morinaga Milk Industry Co., Ltd., Next Generation Science Institute, Kanagawa, Japan
| | - Yuki Yamauchi
- Morinaga Milk Industry Co., Ltd., Next Generation Science Institute, Kanagawa, Japan
| | - Toshitaka Odamaki
- Morinaga Milk Industry Co., Ltd., Next Generation Science Institute, Kanagawa, Japan
| | | | - Kumie Ito
- Nihonbashi Sakura Clinic, Tokyo, Japan
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Ano Y, Yoshino Y, Kutsukake T, Ohya R, Fukuda T, Uchida K, Takashima A, Nakayama H. Tryptophan-related dipeptides in fermented dairy products suppress microglial activation and prevent cognitive decline. Aging (Albany NY) 2019; 11:2949-2967. [PMID: 31121563 PMCID: PMC6555451 DOI: 10.18632/aging.101909] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 04/03/2019] [Indexed: 01/08/2023]
Abstract
The rapid growth in aging populations has made prevention of age-related memory decline and dementia a high priority. Several epidemiological and clinical studies have concluded that fermented dairy products can help prevent cognitive decline; furthermore, intake of Camembert cheese prevents microglial inflammation and Alzheimer's pathology in mouse models. To elucidate the molecular mechanisms underlying the preventive effects of fermented dairy products, we screened peptides from digested milk protein for their potential to regulate the activation of microglia. We identified dipeptides of tryptophan-tyrosine (WY) and tryptophan-methionine that suppressed the microglial inflammatory response and enhanced the phagocytosis of amyloid-β (Aβ). Various fermented dairy products and food materials contain the WY peptide. Orally administered WY peptide was smoothly absorbed into blood, delivered to the brain, and improved the cognitive decline induced by lipopolysaccharide via the suppression of inflammation. Intake of the WY peptide prevented microglial inflammation, hippocampal long-term potential deficit, and memory impairment in aged mice. In an Alzheimer's model using 5×FAD mice, intake of the WY peptide also suppressed microglial inflammation and accumulation of Aβ, which improved cognitive decline. The identified dipeptides regulating microglial activity could potentially be used to prevent cognitive decline and dementia related to inflammation.
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Affiliation(s)
- Yasuhisa Ano
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
- Research Laboratories for Health Science & Food Technologies, Kirin Company Ltd., Yokohama-shi, Kanagawa 236-0004, Japan
| | - Yuka Yoshino
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
| | - Toshiko Kutsukake
- Research Laboratories for Health Science & Food Technologies, Kirin Company Ltd., Yokohama-shi, Kanagawa 236-0004, Japan
| | - Rena Ohya
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
- Research Laboratories for Health Science & Food Technologies, Kirin Company Ltd., Yokohama-shi, Kanagawa 236-0004, Japan
| | - Takafumi Fukuda
- Research Laboratories for Health Science & Food Technologies, Kirin Company Ltd., Yokohama-shi, Kanagawa 236-0004, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
| | - Akihiko Takashima
- Faculty of Science, Gakushuin University, Toshima-ku, Tokyo 171-8588, Japan
| | - Hiroyuki Nakayama
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
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19
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Abstract
Cognitive decline has been associated with and accepted as a consequence of ageing. Diets such as the Mediterranean diet have been investigated for their effect on abating cognitive decline. However, diet is not the only aspect of the Mediterranean life that may play a role - social interaction and cultural engagement may also be influential in preserving cognitive function through the ageing process. This article discusses the perspective on cognitive decline and the influence the Mediterranean diet may have. It highlights that no sole dietary regimen will prevent cognitive decline and the UK healthy eating guidelines reflect those foods included in the Mediterranean diet. The focus should instead be on the way in which people engage with food, society and culture to maintain a healthy body and mind.
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Affiliation(s)
- Robert Davies
- Dietetics, Faculty of Health and Life Sciences, Coventry University, England
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20
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Grimmig B, Hudson C, Moss L, Peters M, Subbarayan M, Weeber EJ, Bickford PC. Astaxanthin supplementation modulates cognitive function and synaptic plasticity in young and aged mice. GeroScience 2019; 41:77-87. [PMID: 30739297 PMCID: PMC6423184 DOI: 10.1007/s11357-019-00051-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/07/2019] [Indexed: 12/28/2022] Open
Abstract
The incidence of neurodegenerative disorders and cognitive impairment is increasing. Rising prevalence of age-related medical conditions is associated with a dramatic economic burden; therefore, developing strategies to manage these health concerns is of great public health interest. Nutritionally based interventions have shown promise in treatment of these age-associated conditions. Astaxanthin is a carotenoid with reputed neuroprotective properties in the context of disease and injury, while emerging evidence suggests that astaxanthin may also have additional biological activities relating to neurogenesis and synaptic plasticity. Here, we investigate the potential for astaxanthin to modulate cognitive function and neural plasticity in young and aged mice. We show that feeding astaxanthin to aged mice for 1 month improves performance on several hippocampal-dependent cognitive tasks and increases long-term potentiation. However, we did not observe an alteration in neurogenesis, nor did we observe a change in microglial-associated IBA1 immunostaining. This demonstrates the potential for astaxanthin to modulate neural plasticity and cognitive function in aging.
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Affiliation(s)
- Bethany Grimmig
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, USF Health, 12901 Bruce B Downs, Blvd, Tampa, FL, USA
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, USF Health, 12901 Bruce B Downs, Blvd, Tampa, FL, USA
| | - Charles Hudson
- Research Service, James A Haley Veterans Hospital, 13000 Bruce B Downs Blvd, Tampa, FL, USA
| | - Lauren Moss
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, USF Health, 12901 Bruce B Downs, Blvd, Tampa, FL, USA
| | - Melinda Peters
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, USF Health, 12901 Bruce B Downs, Blvd, Tampa, FL, USA
| | - Meena Subbarayan
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, USF Health, 12901 Bruce B Downs, Blvd, Tampa, FL, USA
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, USF Health, 12901 Bruce B Downs, Blvd, Tampa, FL, USA
| | - Edwin J Weeber
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, USF Health, 12901 Bruce B Downs, Blvd, Tampa, FL, USA
| | - Paula C Bickford
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, USF Health, 12901 Bruce B Downs, Blvd, Tampa, FL, USA.
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, USF Health, 12901 Bruce B Downs, Blvd, Tampa, FL, USA.
- Research Service, James A Haley Veterans Hospital, 13000 Bruce B Downs Blvd, Tampa, FL, USA.
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21
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Tanaka T, Talegawkar SA, Jin Y, Colpo M, Ferrucci L, Bandinelli S. Adherence to a Mediterranean Diet Protects from Cognitive Decline in the Invecchiare in Chianti Study of Aging. Nutrients 2018; 10:E2007. [PMID: 30572567 PMCID: PMC6316104 DOI: 10.3390/nu10122007] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/10/2018] [Accepted: 12/17/2018] [Indexed: 12/01/2022] Open
Abstract
Following a Mediterranean diet high in plant-based foods and fish, low in meat and dairy foods, and with moderate alcohol intake has been shown to promote healthy aging. Therefore, we examined the association between a Mediterranean diet and trajectories of cognitive performance in the InCHIANTI study. Subjects (N = 832) were examined every 2⁻3 years up to 18 years with an average follow-up period of 10.1 years. Cognitive performance was assessed using the Mini Mental State Examination (MMSE) at every visit. Dietary habits were assessed using a validated food frequency questionnaire and adherence to Mediterranean diet was computed on a scale of 0-9 and categorized into three groups of low (≤3), medium (4⁻5), and high (≥6). Those in the highest adherence group (OR = 0.48, 95% CI: 0.29⁻0.79) and medium adherence group (OR = 0.64, 95% CI: 0.41⁻0.99) were less likely to experience cognitive decline. The annual average decline in MMSE scores was 0.4 units, for those in the high and medium adherence group this decline was attenuated by 0.34 units (p < 0.001) and 0.16 units (p = 0.03), respectively. Our findings suggest that adherence to a Mediterranean diet can have long-lasting protective effects on cognitive decline and may be an effective strategy for the prevent or delay dementia.
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Affiliation(s)
- Toshiko Tanaka
- Longitudinal study section, Translation Gerontology Branch, National Institute on Aging, Baltimore, MD 21224, USA.
| | - Sameera A Talegawkar
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA.
| | - Yichen Jin
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC 20052, USA.
| | - Marco Colpo
- Geriatric Unit, Azienda Sanitaria Firenze (A.S.F.), Florence 50125, Italy.
| | - Luigi Ferrucci
- Longitudinal study section, Translation Gerontology Branch, National Institute on Aging, Baltimore, MD 21224, USA.
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22
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Abstract
Diabetics in mid-life carry a 1.5 times higher risk of developing Alzheimer's disease than those diagnosed with diabetes (T2D) later in life [1]. Recent research points to accelerated cognitive decline within a range of 20%-50% for middle-aged diabetics as compared to non-diabetic populations [2,3]. Metabolic syndrome (MetS), a type 2 diabetes (T2D) precursor, is also linked to MCI and AD pathologies via hypo-metabolic brain circuitry that inhibits glucose metabolism and attenuates cognitive function [4]. Dysregulation of intracellular and extracellular signaling as mediated by the mTOR and AMPK pathways is the result. These critical nutrient sensing pathways modulate epigenetic shifts in the genome by channeling fuel substrates either towards mitochondrial fatty acid oxidation (AMPK) or cytosolic glycolysis and substrate level phosphorylation (mTOR) [5]. This case study was designed to examine the link between peripheral insulin resistance and early stage memory loss in a type 2 diabetic male. Reactivating the AMPK pathway via induced and controlled nutritional ketosis combined with high intensity interval training (HIIT) (in order to inhibit mTOR signaling) were primary features of the 10 week intervention. Post intervention results revealed statistically significant reductions in HgA1c, fasting insulin and HOMA-IR (homeostatic model assessment of insulin resistance). Restoring peripheral and hypothalamic insulin sensitivity by way of AMPK activation may restore memory function, improve neuroplasticity, and normalize MetS biomarkers (Demetrius and Driver, 2014; [4,6]).
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Affiliation(s)
- Alicia Halikas
- Human Bioenergetics & Applied Health Science, Bethel University, Minnesota, USA.
| | - Kelly J Gibas
- Doctorate of Behavioral Health Sciences, Human Bioenergetics & Applied Health Science, Bethel University, Minnesota, USA.
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23
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van Berkel AA, IJff DM, Verkuyl JM. Cognitive benefits of the ketogenic diet in patients with epilepsy: A systematic overview. Epilepsy Behav 2018; 87:69-77. [PMID: 30173019 DOI: 10.1016/j.yebeh.2018.06.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/01/2018] [Accepted: 06/01/2018] [Indexed: 01/28/2023]
Abstract
The ketogenic diet (KD) has been found to be effective in reducing seizures in patients with treatment-refractory epilepsy. Less attention has been paid to additional cognitive benefits of KD. The aim of the present paper was to provide a comprehensive overview of the studies reporting effects on cognition after KD treatment in adults and children with epilepsy. To address this aim, the clinical literature on cognitive effects of KD in patients with epilepsy was reviewed using a systematic approach. We conclude that using subjective assessments of the patient's experience, cognitive improvements are frequently reported during KD treatment in the domains of alertness, attention, and global cognition. Studies that used objective neuropsychological tests confirmed benefits on alertness but found no improvement in global cognition. There are indications that these improvements are caused by both seizure reduction and direct effects of KD on cognition. The improvements appear to be unrelated to medication reduction, age when KD is started, type of KD, and sleep improvement. The findings in the present overview contribute to a better understanding of the beneficial effects of KD in patients with epilepsy.
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Affiliation(s)
- Annemiek A van Berkel
- Department of Functional Genomics, Center for Neurogenomics and Cognitive Research, VU University Amsterdam and VU Medical Center, 1081 HV Amsterdam, The Netherlands
| | - Dominique M IJff
- Epilepsy Center Kempenhaeghe, Sterkselseweg 65, 5591 VE Heeze, The Netherlands
| | - Jan Martin Verkuyl
- Danone Nutricia Research, Uppsalalaan 12, 3584 CT Utrecht, The Netherlands.
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24
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Ano Y, Ayabe T, Kutsukake T, Ohya R, Takaichi Y, Uchida S, Yamada K, Uchida K, Takashima A, Nakayama H. Novel lactopeptides in fermented dairy products improve memory function and cognitive decline. Neurobiol Aging 2018; 72:23-31. [PMID: 30176402 DOI: 10.1016/j.neurobiolaging.2018.07.016] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/09/2018] [Accepted: 07/24/2018] [Indexed: 11/18/2022]
Abstract
Alongside the rapid growth in aging populations, prevention of age-related memory decline and dementia has become a high priority. Several epidemiological and clinical studies have concluded that fermented dairy products can help to prevent cognitive decline; furthermore, intake of Camembert cheese prevents Alzheimer's pathology in model mice. To elucidate molecular mechanisms underlying the preventive effects of fermented dairy products, here we screened peptides from digested fermented dairy products for ability to improve memory function in a scopolamine-induced amnesia mouse model. We found that Trp-Tyr (WY)-containing peptides from whey protein improved memory function in the mice, and the effects were confirmed in aged mice. The WY-containing peptides directly inhibited monoamine oxidase-B activity and increased dopamine levels in brain tissue. Pretreatment with dopamine receptor antagonist abolished the improvement in memory function due to WY-containing peptides. These results suggest that WY-containing peptides in fermented dairy products increase monoamine levels by inhibiting monoamine oxidase-B activity, helping to prevent age-related cognitive decline.
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Affiliation(s)
- Yasuhisa Ano
- Research Laboratories for Health Science and Food Technologies, Kirin Company Ltd, Yokohama-shi, Kanagawa, Japan.
| | - Tatsuhiro Ayabe
- Research Laboratories for Health Science and Food Technologies, Kirin Company Ltd, Yokohama-shi, Kanagawa, Japan
| | - Toshiko Kutsukake
- Central Laboratories for Key Technologies, Kirin Company Ltd, Yokohama-shi, Kanagawa, Japan
| | - Rena Ohya
- Research Laboratories for Health Science and Food Technologies, Kirin Company Ltd, Yokohama-shi, Kanagawa, Japan
| | - Yuta Takaichi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Shinichi Uchida
- Central Nervous System Research Laboratories, CNS R&D Unit, R&D Division, Kyowa Hakko Kirin Co, Ltd, Shizuoka, Japan
| | - Koji Yamada
- Central Nervous System Research Laboratories, CNS R&D Unit, R&D Division, Kyowa Hakko Kirin Co, Ltd, Shizuoka, Japan
| | - Kazuyuki Uchida
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | | | - Hiroyuki Nakayama
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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25
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Kita M, Obara K, Kondo S, Umeda S, Ano Y. Effect of Supplementation of a Whey Peptide Rich in Tryptophan-Tyrosine-Related Peptides on Cognitive Performance in Healthy Adults: A Randomized, Double-Blind, Placebo-Controlled Study. Nutrients 2018; 10:E899. [PMID: 30011836 PMCID: PMC6073406 DOI: 10.3390/nu10070899] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/06/2018] [Accepted: 07/11/2018] [Indexed: 12/31/2022] Open
Abstract
Background: Previous epidemiological and clinical studies have shown that dairy products have beneficial effects on cognitive decline and dementia. Enzymatic digestion of whey protein produces a whey peptide rich in tryptophan-tyrosine-related peptides which improve cognitive performance in mice. We evaluated the effects of whey peptides on cognitive functions in healthy adults in a randomized, double-blind, placebo-controlled design. Methods: 101 healthy adults (45 to 64 years), with a self-awareness of cognitive decline received either whey peptide or placebo supplements for 12 weeks. Changes in cognitive function were assessed using neuropsychological tests at 6 and 12 weeks after the start of supplementation. Results: Verbal fluency test (VFT) score changes tended to be higher in the whey peptide group compared with the placebo at 12 weeks. Subgroup analysis classified by the degree of subjective fatigue showed that changes in the VFT as well as the Stroop and subjective memory function tests between baseline and 6 weeks of intervention were significantly better in subjects with high-level fatigue from the whey peptide group as compared to the placebo group. CONCLUSIONS Intake of whey peptide might improve cognitive function in healthy middle- and older-aged adults with high subjective fatigue levels. Further studies will elucidate the relationship among cognitive improvement, whey peptides, and psychological fatigue.
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Affiliation(s)
- Masahiro Kita
- Research Laboratories for Health Science & Food Technologies, Kirin Company, Ltd., Yokohama 1-13-5, Japan.
| | - Kuniaki Obara
- Research Laboratories for Health Science & Food Technologies, Kirin Company, Ltd., Yokohama 1-13-5, Japan.
| | - Sumio Kondo
- Kensyokai Medical Corporation, Osaka 2-12-16, Japan.
| | - Satoshi Umeda
- Department of Psychology, Keio University, Tokyo 2-15-45, Japan.
| | - Yasuhisa Ano
- Research Laboratories for Health Science & Food Technologies, Kirin Company, Ltd., Yokohama 1-13-5, Japan.
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26
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Ciappolino V, Mazzocchi A, Enrico P, Syrén ML, Delvecchio G, Agostoni C, Brambilla P. N-3 Polyunsatured Fatty Acids in Menopausal Transition: A Systematic Review of Depressive and Cognitive Disorders with Accompanying Vasomotor Symptoms. Int J Mol Sci 2018; 19:E1849. [PMID: 29937484 PMCID: PMC6073395 DOI: 10.3390/ijms19071849] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/15/2018] [Accepted: 06/19/2018] [Indexed: 01/25/2023] Open
Abstract
Depression is one of the most important health problems worldwide. Women are 2.5 times more likely to experience major depression than men. Evidence suggests that some women might experience an increased risk for developing depression during “windows of vulnerability”, i.e., when exposed to intense hormone fluctuations, such as the menopause transition. Indeed, this period is associated with different symptoms, including vasomotor, depressive, and cognitive symptoms, which have all been shown to worsen as women approach menopause. Even though hormonal therapy represents the most effective treatment, side effects have been reported by several studies. Therefore, an increased number of women might prefer the use of alternative medicine for treating menopausal symptoms. N-3 long-chain polyunsaturated fatty acids (n-3 LCPUFAs) are included among these alternative treatments. We here provide a review of studies investigating the effects of n-3 LCPUFAs on hot flashes and depressive and cognitive disorders in menopausal women. The reported results are scattered and heterogeneous. In conclusion, a beneficial role of n-3 LCPUFAs in hot flashes, and depressive and cognitive symptoms related to menopausal transition is still far from conclusive.
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Affiliation(s)
- Valentina Ciappolino
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, 20122 Milan, Italy.
| | - Alessandra Mazzocchi
- Pediatric Intermediate Care Unit, Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico, 20122 Milan, Italy.
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy.
| | - Paolo Enrico
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, 20122 Milan, Italy.
| | - Marie-Louise Syrén
- Pediatric Intermediate Care Unit, Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico, 20122 Milan, Italy.
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy.
| | - Giuseppe Delvecchio
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy.
| | - Carlo Agostoni
- Pediatric Intermediate Care Unit, Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico, 20122 Milan, Italy.
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy.
- SIGENP (Italian Society of Pediatric Gastroenterology, Hepatology, and Nutrition), via Libero Temolo 4 (Torre U8), 20126 Milan, Italy.
| | - Paolo Brambilla
- Department of Neurosciences and Mental Health, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, 20122 Milan, Italy.
- Department of Psychiatry and Behavioural Neurosciences, University of Texas at Houston, Houston, TX 77030, USA.
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27
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Boespflug EL, Eliassen JC, Dudley JA, Shidler MD, Kalt W, Summer SS, Stein AL, Stover AN, Krikorian R. Enhanced neural activation with blueberry supplementation in mild cognitive impairment. Nutr Neurosci 2018; 21:297-305. [PMID: 28221821 PMCID: PMC6093614 DOI: 10.1080/1028415x.2017.1287833] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES Preclinical studies have shown that blueberry supplementation can improve cognitive performance and neural function in aged animals and have identified associations between anthocyanins and such benefits. Preliminary human trials also suggest cognitive improvement in older adults, although direct evidence of enhancement of brain function has not been demonstrated. In this study, we investigated the effect of blueberry supplementation on regional brain activation in older adults at risk for dementia. METHODS In a randomized, double-blind, placebo-controlled trial we performed pre- and post-intervention functional magnetic resonance imaging during a working memory (WM) task to assess the effect of blueberry supplementation on blood oxygen level-dependent (BOLD) signal in older adults with mild cognitive impairment, a risk condition for dementia. RESULTS Following daily supplementation for 16 weeks, blueberry-treated participants exhibited increased BOLD activation in the left pre-central gyrus, left middle frontal gyrus, and left inferior parietal lobe during WM load conditions (corrected P < 0.01). There was no clear indication of WM enhancement associated with blueberry supplementation. Diet records indicated no between-group difference in anthocyanin consumption external to the intervention. DISCUSSION These data demonstrate, for the first time, enhanced neural response during WM challenge in blueberry-treated older adults with cognitive decline and are consistent with prior trials showing neurocognitive benefit with blueberry supplementation in this at-risk population.
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Affiliation(s)
- Erin L Boespflug
- Department of Psychiatry & Behavioral Neuroscience,
University of Cincinnati Academic Health Center, Cincinnati, OH 45267-0559
| | - James C Eliassen
- Department of Psychiatry & Behavioral Neuroscience,
University of Cincinnati Academic Health Center, Cincinnati, OH 45267-0559
| | - Jonathan A Dudley
- Department of Psychiatry & Behavioral Neuroscience,
University of Cincinnati Academic Health Center, Cincinnati, OH 45267-0559
| | - Marcelle D Shidler
- Department of Psychiatry & Behavioral Neuroscience,
University of Cincinnati Academic Health Center, Cincinnati, OH 45267-0559
| | - Wilhelmina Kalt
- Atlantic Food and Horticultural Research Centre,
Agriculture & Agri-Food Canada, Kentville, Nova Scotia B4N 1J5
| | - Suzanne S Summer
- Clinical Translational Research Center, Cincinnati
Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH
45229
| | - Amanda L Stein
- Department of Psychiatry & Behavioral Neuroscience,
University of Cincinnati Academic Health Center, Cincinnati, OH 45267-0559
| | - Amanda N Stover
- Department of Psychiatry & Behavioral Neuroscience,
University of Cincinnati Academic Health Center, Cincinnati, OH 45267-0559
| | - Robert Krikorian
- Department of Psychiatry & Behavioral Neuroscience,
University of Cincinnati Academic Health Center, Cincinnati, OH 45267-0559
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28
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McNamara RK, Kalt W, Shidler MD, McDonald J, Summer SS, Stein AL, Stover AN, Krikorian R. Cognitive response to fish oil, blueberry, and combined supplementation in older adults with subjective cognitive impairment. Neurobiol Aging 2018; 64:147-156. [PMID: 29458842 PMCID: PMC5822748 DOI: 10.1016/j.neurobiolaging.2017.12.003] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 11/20/2017] [Accepted: 12/04/2017] [Indexed: 12/29/2022]
Abstract
Given evidence that eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and anthocyanin-rich blueberries provide neurocognitive benefit, we investigated long-term supplementation in older adults with cognitive complaints. In a 24-week randomized, double-blind, placebo-controlled trial, elderly men and women received daily fish oil (FO) or blueberry (BB) or both. Diet records confirmed that participants reduced background consumption of EPA, DHA, and anthocyanins as prescribed. Erythrocyte EPA + DHA composition increased in the FO groups (p = 0.0001). Total urinary anthocyanins did not differ between the groups after supplementation but glycoside and native (food) forms increased only in the BB-supplemented groups. The FO (p = 0.03) and BB (p = 0.05) groups reported fewer cognitive symptoms, and the BB group showed improved memory discrimination (p = 0.04), indicating that supplementation improved cognition. Cognitive benefit in the BB group was associated with the presence of urinary anthocyanins reflecting recent BB intake but not with anthocyanin metabolites. However, combined FO + BB treatment was not associated with cognitive enhancement as expected.
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Affiliation(s)
- Robert K McNamara
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati Academic Health Center, Cincinnati, OH, USA
| | - Wilhelmina Kalt
- Agriculture and Agri-Food Canada, Kentville Research and Development Centre, Kentville, Nova Scotia, Canada
| | - Marcelle D Shidler
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati Academic Health Center, Cincinnati, OH, USA
| | - Jane McDonald
- Agriculture and Agri-Food Canada, Kentville Research and Development Centre, Kentville, Nova Scotia, Canada
| | - Suzanne S Summer
- Clinical Translational Research Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Amanda L Stein
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati Academic Health Center, Cincinnati, OH, USA
| | - Amanda N Stover
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati Academic Health Center, Cincinnati, OH, USA
| | - Robert Krikorian
- Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati Academic Health Center, Cincinnati, OH, USA.
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29
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Winn SR, Scherer T, Thöny B, Ying M, Martinez A, Weber S, Raber J, Harding CO. Blood phenylalanine reduction corrects CNS dopamine and serotonin deficiencies and partially improves behavioral performance in adult phenylketonuric mice. Mol Genet Metab 2018; 123:6-20. [PMID: 29331172 PMCID: PMC5786171 DOI: 10.1016/j.ymgme.2017.10.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/17/2017] [Accepted: 10/17/2017] [Indexed: 01/12/2023]
Abstract
Central nervous system (CNS) deficiencies of the monoamine neurotransmitters dopamine and serotonin have been implicated in the pathophysiology of neuropsychiatric dysfunction in human phenylketonuria (PKU). In this study, we confirmed the occurrence of brain dopamine and serotonin deficiencies in association with severe behavioral alterations and cognitive impairments in hyperphenylalaninemic C57BL/6-Pahenu2/enu2 mice, a model of human PKU. Phenylalanine-reducing treatments, including either dietary phenylalanine restriction or liver-directed gene therapy, initiated during adulthood were associated with increased brain monoamine content along with improvements in nesting behavior but without a change in the severe cognitive deficits exhibited by these mice. At euthanasia, there was in Pahenu2/enu2 brain a significant reduction in the protein abundance and maximally stimulated activities of tyrosine hydroxylase (TH) and tryptophan hydroxylase 2 (TPH2), the rate limiting enzymes catalyzing neuronal dopamine and serotonin synthesis respectively, in comparison to levels seen in wild type brain. Phenylalanine-reducing treatments initiated during adulthood did not affect brain TH or TPH2 content or maximal activity. Despite this apparent fixed deficit in striatal TH and TPH2 activities, initiation of phenylalanine-reducing treatments yielded substantial correction of brain monoamine neurotransmitter content, suggesting that phenylalanine-mediated competitive inhibition of already constitutively reduced TH and TPH2 activities is the primary cause of brain monoamine deficiency in Pahenu2 mouse brain. We propose that CNS monoamine deficiency may be the cause of the partially reversible adverse behavioral effects associated with chronic HPA in Pahenu2 mice, but that phenylalanine-reducing treatments initiated during adulthood are unable to correct the neuropathology and attendant cognitive deficits that develop during juvenile life in late-treated Pahenu2/enu2 mice.
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Affiliation(s)
- Shelley R Winn
- Department of Medical and Molecular Genetics, Oregon Health & Science University, Mailstop L-103, 3181 Sam Jackson Park Rd., Portland, OR 97239, USA
| | - Tanja Scherer
- Department of Pediatrics, University of Zurich, Steinweissstrasse 75, Zurich CH-8032, Switzerland
| | - Beat Thöny
- Department of Pediatrics, University of Zurich, Steinweissstrasse 75, Zurich CH-8032, Switzerland
| | - Ming Ying
- Department of Biomedicine, KG Jebsen Centre for Neuropsychiatric Disorders, University of Bergen, 5009 Bergen, Norway
| | - Aurora Martinez
- Department of Biomedicine, KG Jebsen Centre for Neuropsychiatric Disorders, University of Bergen, 5009 Bergen, Norway
| | - Sydney Weber
- Department of Behavioral Neuroscience, Oregon Health & Science University, 3181 Sam Jackson Park Rd., Portland, OR 97239, USA
| | - Jacob Raber
- Department of Behavioral Neuroscience, Oregon Health & Science University, 3181 Sam Jackson Park Rd., Portland, OR 97239, USA; Department of Neurology, Division of Neuroscience, ONPRC, Oregon Health & Science University, 3181 Sam Jackson Park Rd., Portland, OR 97239, USA; Department of Radiation Medicine, Division of Neuroscience, ONPRC, Oregon Health & Science University, 3181 Sam Jackson Park Rd., Portland, OR 97239, USA
| | - Cary O Harding
- Department of Medical and Molecular Genetics, Oregon Health & Science University, Mailstop L-103, 3181 Sam Jackson Park Rd., Portland, OR 97239, USA.
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Siddiqui N, Khan M. Preventing cognitive decline through diet. J PAK MED ASSOC 2017; 67:1633. [PMID: 28955093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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Olivera-Pueyo J, Pelegrín-Valero C. Dietary supplements for cognitive impairment. Actas Esp Psiquiatr 2017; 45:37-47. [PMID: 29171642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 09/01/2017] [Indexed: 06/07/2023]
Abstract
Alzheimer disease and the other neurodegenerative dementias as yet have no curative treatment. For this reason, the prevention of these conditions and non-pharmacological treatments are important fields of research at present. The Mediterranean diet (rich in fruits, vegetables, legumes, and olive oil, with regular fish consumption and low consumption of dairy products and meats) has been shown to reduce the incidence of mild cognitive impairment (MCI) and, probably, the conversion of MCI to dementia. Vitamins, especially vitamin E and the vitamins of the B group, have also been associated with the prevention of cognitive impairment due to their antioxidant effects. Ginkgo biloba is one of the most widely used supplements in the world for cognitive improvement because of its possible effects as a vasodilator and facilitator of cerebral vascularization. Green tea polyphenols have shown beneficial effects in different diseases, including cognitive impairment. Cerebral aging is associated with changes in the lipid composition of neuronal membranes, so it has been suggested that treatment with phospholipids like phosphatidylcholine and phosphatidylserine could favor cognitive improvement. Similarly, polyunsaturated and omega-3 fatty acids, and docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) supplements are associated with a beneficial effect on cognitive function due to the cumulative summation of factors that ultimately favor membrane permeability and neuronal functioning.
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Affiliation(s)
- Javier Olivera-Pueyo
- Programa de Psicogeriatría, Servicio de Psiquiatría, Hospital San Jorge. Huesca Profesor Asociado. Universidad de Zaragoza
| | - Carmelo Pelegrín-Valero
- Jefe de Servicio de Psiquiatría, Hospital San Jorge. Huesca Profesor Asociado. Universidad de Zaragoza
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Orchard TS, Gaudier-Diaz MM, Weinhold KR, Courtney DeVries A. Clearing the fog: a review of the effects of dietary omega-3 fatty acids and added sugars on chemotherapy-induced cognitive deficits. Breast Cancer Res Treat 2016; 161:391-398. [PMID: 27933449 DOI: 10.1007/s10549-016-4073-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 11/29/2016] [Indexed: 02/07/2023]
Abstract
Cancer treatments such as chemotherapy have been an important part of extending survival in women diagnosed with breast cancer. However, chemotherapy can cause potentially toxic side effects in the brain that impair memory, verbal fluency, and processing speed in up to 30% of women treated. Women report that post-chemotherapy cognitive deficits negatively impact quality of life and may last up to ten years after treatment. Mechanisms underlying these cognitive impairments are not fully understood, but emerging evidence suggests that chemotherapy induces structural changes in the brain, produces neuroinflammation, and reduces adult hippocampal neurogenesis. Dietary approaches that modify inflammation and neurogenesis are promising strategies for reducing chemotherapy-induced cognitive deficits in breast cancer survivors. In this review, we describe the cognitive and neuronal side effects associated with commonly used chemotherapy treatments for breast cancer, and we focus on the often opposing actions of omega-3 fatty acids and added sugars on cognitive function, neuroinflammation, and adult hippocampal neurogenesis. Omega-3 fatty acids administered concurrently with doxorubicin chemotherapy have been shown to prevent depressive-like behaviors and reduce neuroinflammation, oxidative stress, and neural apoptosis in rodent models. In contrast, diets high in added sugars may interact with n-3 FAs to diminish their anti-inflammatory activity or act independently to increase neuroinflammation, reduce adult hippocampal neurogenesis, and promote cognitive deficits. We propose that a diet rich in long-chain, marine-derived omega-3 fatty acids and low in added sugars may be an ideal pattern for preventing or alleviating neuroinflammation and oxidative stress, thereby protecting neurons from the toxic effects of chemotherapy. Research testing this hypothesis could lead to the identification of modifiable dietary choices to reduce the long-term impact of chemotherapy on the cognitive functions that are important to quality of life in breast cancer survivors.
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Affiliation(s)
- Tonya S Orchard
- Department of Human Sciences, The Ohio State University, 325 Campbell Hall, 1787 Neil Avenue, Columbus, OH, 43210, USA.
| | - Monica M Gaudier-Diaz
- Department of Neuroscience, The Ohio State University Wexner Medical Center, 614 Biomedical Research Tower, 460 West 12th Avenue, Columbus, OH, 43210, USA
| | - Kellie R Weinhold
- Department of Human Sciences, The Ohio State University, 325 Campbell Hall, 1787 Neil Avenue, Columbus, OH, 43210, USA
| | - A Courtney DeVries
- Department of Neuroscience, The Ohio State University Wexner Medical Center, 614 Biomedical Research Tower, 460 West 12th Avenue, Columbus, OH, 43210, USA
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Bourourou M, Heurteaux C, Blondeau N. Alpha-linolenic acid given as enteral or parenteral nutritional intervention against sensorimotor and cognitive deficits in a mouse model of ischemic stroke. Neuropharmacology 2016; 108:60-72. [PMID: 27133376 DOI: 10.1016/j.neuropharm.2016.04.040] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/26/2016] [Accepted: 04/27/2016] [Indexed: 02/03/2023]
Abstract
Stroke is a leading cause of disability and death worldwide. Numerous therapeutics applied acutely after stroke have failed to improve long-term clinical outcomes. An emerging direction is nutritional intervention with omega-3 polyunsaturated fatty acids acting as disease-modifying factors and targeting post-stroke disabilities. Our previous studies demonstrated that the omega-3 precursor, alpha-linolenic acid (ALA) administrated by injections or dietary supplementation reduces stroke damage by direct neuroprotection, and triggering brain artery vasodilatation and neuroplasticity. Successful translation of putative therapies will depend on demonstration of robust efficacy on common deficits resulting from stroke like loss of motor control and memory/learning. This study evaluated the value of ALA as adjunctive therapy for stroke recovery by comparing whether oral or intravenous supplementation of ALA best support recovery from ischemia. Motor and cognitive deficits were assessed using rotarod, pole and Morris water maze tests. ALA supplementation in diet was better than intravenous treatment in improving motor coordination, but this improvement was not due to a neuroprotective effect since infarct size was not reduced. Both types of ALA supplementation improved spatial learning and memory after stroke. This cognitive improvement correlated with higher survival of hippocampal neurons. These results support clinical investigation establishing therapeutic plans using ALA supplementation.
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Affiliation(s)
- Miled Bourourou
- Université de Nice Sophia Antipolis, IPMC, Sophia Antipolis, F-06560, France; CNRS, IPMC, Sophia Antipolis, F-06560, France
| | - Catherine Heurteaux
- Université de Nice Sophia Antipolis, IPMC, Sophia Antipolis, F-06560, France; CNRS, IPMC, Sophia Antipolis, F-06560, France
| | - Nicolas Blondeau
- Université de Nice Sophia Antipolis, IPMC, Sophia Antipolis, F-06560, France; CNRS, IPMC, Sophia Antipolis, F-06560, France.
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Martínez-Lapiscina EH, Clavero P, Toledo E, San Julián B, Sanchez-Tainta A, Corella D, Lamuela-Raventós RM, Martínez JA, Martínez-Gonzalez MÁ. Virgin olive oil supplementation and long-term cognition: the PREDIMED-NAVARRA randomized, trial. J Nutr Health Aging 2013; 17:544-52. [PMID: 23732551 DOI: 10.1007/s12603-013-0027-6] [Citation(s) in RCA: 158] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To assess the effect on cognition of a controlled intervention testing Mediterranean diets (MedDiet). DESIGN Randomized trial after 6.5 years of nutritional intervention. SETTING Eight primary care centers affiliated to the University of Navarra. PARTICIPANTS A random subsample of 285 participants (95 randomly allocated to each of 3 groups) of the PREDIMED-NAVARRA trial. All of them were at high vascular risk (44.8% men, 74.1±5.7 years at cognitive evaluation). INTERVENTIONS Nutritional intervention comparing two MedDiets (supplemented with extra-virgin olive oil [EVOO] or mixed nuts) versus a low-fat control diet. Participants received intensive education to increase adherence to the intended intervention. Participants allocated to the MedDiet groups received EVOO (1 l/week) or 30 g/day of mixed nuts. Dietary habits were evaluated using a validated 137-item food frequency questionnaire (FFQ). Additionally, adherence to MedDiet was appraised using a 14-item questionnaire both at baseline and yearly thereafter. MEASUREMENTS Cognitive performance as a main outcome and cognitive status (normal, mild cognitive impairment [MCI] or dementia) as a secondary outcome were evaluated by two neurologists blinded to group assignment after 6.5 years of nutritional intervention. RESULTS Better post-trial cognitive performance versus control in all cognitive domains and significantly better performance across fluency and memory tasks were observed for participants allocated to the MedDiet+EVOO group. After adjustment for sex, age, education, apolipoprotein E genotype, family history of cognitive impairment/dementia, smoking, physical activity, body mass index, hypertension, dyslipidaemia, diabetes, alcohol and total energy intake, this group also showed lower MCI (OR=0.34 95% CI: 0.12-0.97) compared with control group. Participants assigned to MedDiet+Nuts group did not differ from controls. CONCLUSION A long-term intervention with an EVOO-rich MedDiet resulted in a better cognitive function in comparison with a control diet. However, non-significant differences were found for most cognitive domains. Participants allocated to an EVOO-rich MedDiet had less MCI than controls.
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Affiliation(s)
- E H Martínez-Lapiscina
- Departamento de Medicina Preventiva y Salud Pública, Facultad de Medicina-Clínica Universidad de Navarra, Universidad de Navarra, C/ Irunlarrea n1 1, Pamplona, Navarra, E-31008, Spain.
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Blasko I, Hinterberger M, Kemmler G, Jungwirth S, Krampla W, Leitha T, Heinz Tragl K, Fischer P. Conversion from mild cognitive impairment to dementia: influence of folic acid and vitamin B12 use in the VITA cohort. J Nutr Health Aging 2012; 16:687-94. [PMID: 23076510 DOI: 10.1007/s12603-012-0051-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
OBJECTIVE Increased serum homocysteine and low folate levels are associated with a higher rate of conversion to dementia. This study examined the influence of vitamin B12/folic acid intake on the conversion from mild cognitive impairment (MCI) to dementia. PARTICIPANTS A community dwelling cohort of older adults (N=81) from the Vienna Transdanube aging study with MCI. DESIGN Prospective study with a retrospective evaluation of vitamin intake. MEASUREMENTS Laboratory measurements, brain magnetic resonance imaging, and cognitive functioning were assessed at baseline and at five-year follow-up. RESULTS The self-reported combined use of folic acid and vitamin B12 for more than one year was associated with a lower conversion rate to dementia. Serum levels of homocysteine and vitamin B12 as measured at baseline or at five years were not associated with conversion. Higher folate levels at baseline in females predicted a lower conversion rate to dementia. The assessment of brain morphological parameters by magnetic resonance imaging revealed higher serum folate at baseline, predicting lower medial temporal lobe atrophy and higher levels of homocysteine at baseline, predicting moderate/severe global brain atrophy at five years. Users of vitamin B12 or folate, independent of time and pattern of use, had lower grades of periventricular hyperintensities and lower grades of deep white matter lesions as compared to non-users. CONCLUSIONS These results from a middle European study support observations on the protective ability of folate in MCI patients with respect to conversion to dementia; they also point to a participation of homocysteine metabolism on processes associated with brain atrophy.
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Affiliation(s)
- I Blasko
- Department of Psychiatry and Psychotherapy, Division of General and Social Psychiatry, Innsbruck Medical University, Anichstrasse 35, 6020 Innsbruck, Austria.
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