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Yılmaz E, Baltaci SB, Mogulkoc R, Baltaci AK. The impact of flavonoids and BDNF on neurogenic process in various physiological/pathological conditions including ischemic insults: a narrative review. Nutr Neurosci 2024; 27:1025-1041. [PMID: 38151886 DOI: 10.1080/1028415x.2023.2296165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
OBJECTIVE Ischemic stroke is the leading cause of mortality and disability worldwide with more than half of survivors living with serious neurological sequelae thus, it has recently attracted considerable attention in the field of medical research. Neurogenesis is the process of formation of new neurons in the brain, including the human brain, from neural stem/progenitor cells [NS/PCs] which reside in neurogenic niches that contain the necessary substances for NS/PC proliferation, differentiation, migration, and maturation into functioning neurons which can integrate into a pre-existing neural network.Neurogenesis can be modulated by many exogenous and endogenous factors, pathological conditions. Both brain-derived neurotrophic factor, and flavonoids can modulate the neurogenic process in physiological conditions and after various pathological conditions including ischemic insults. AIM This review aims to discuss neurogenesis after ischemic insults and to determine the role of flavonoids and BDNF on neurogenesis under physiological and pathological conditions with a concentration on ischemic insults to the brain in particular. METHOD Relevant articles assessing the impact of flavonoids and BDNF on neurogenic processes in various physiological/pathological conditions including ischemic insults within the timeline of 1965 until 2023 were searched using the PubMed database. CONCLUSIONS The selected studies have shown that ischemic insults to the brain induce NS/PC proliferation, differentiation, migration, and maturation into functioning neurons integrating into a pre-existing neural network. Flavonoids and BDNF can modulate neurogenesis in the brain in various physiological/pathological conditions including ischemic insults. In conclusion, flavonoids and BDNF may be involved in post-ischemic brain repair processes through enhancing endogenous neurogenesis.
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Affiliation(s)
- Esen Yılmaz
- Selcuk University, Medical Faculty, Department of Physiology, Konya, Turkey
| | | | - Rasim Mogulkoc
- Selcuk University, Medical Faculty, Department of Physiology, Konya, Turkey
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Di Lorenzo G, Buonerba C. Re: Impact of Relugolix Versus Leuprolide on the Quality of Life of Men with Advanced Prostate Cancer: Results from the Phase 3 HERO Study. Eur Urol 2024:S0302-2838(24)02500-4. [PMID: 39095279 DOI: 10.1016/j.eururo.2024.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Accepted: 07/10/2024] [Indexed: 08/04/2024]
Affiliation(s)
- Giuseppe Di Lorenzo
- Oncology Unit, Andrea Tortora Hospital, ASL Salerno, Pagani, Italy; Associazione O.R.A. ETS, Oncology Research Assistance, Salerno, Italy.
| | - Carlo Buonerba
- Associazione O.R.A. ETS, Oncology Research Assistance, Salerno, Italy
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Hunt T, Pontifex MG, Vauzour D. (Poly)phenols and brain health - beyond their antioxidant capacity. FEBS Lett 2024. [PMID: 39043619 DOI: 10.1002/1873-3468.14988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/07/2024] [Accepted: 07/09/2024] [Indexed: 07/25/2024]
Abstract
(Poly)phenols are a group of naturally occurring phytochemicals present in high amounts in plant food and beverages with various structures and activities. The impact of (poly)phenols on brain function has gained significant attention due to the growing interest in the potential benefits of these dietary bioactive molecules for cognitive health and neuroprotection. This review will therefore summarise the current knowledge related to the impact of (poly)phenols on brain health presenting evidence from both epidemiological and clinical studies. Cellular and molecular mechanisms in relation to the observed effects will also be described, including their impact on the gut microbiota through the modulation of the gut-brain axis. Although (poly)phenols have the potential to modulate the gut-brain axis regulation and influence cognitive function and decline through their interactions with gut microbiota, anti-inflammatory and antioxidant properties, further research, including randomised controlled trials and mechanistic studies, is needed to better understand the underlying mechanisms and establish causal relationships between (poly)phenol intake and brain health.
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Affiliation(s)
- Thomas Hunt
- Norwich Medical School, University of East Anglia, Norwich, UK
| | | | - David Vauzour
- Norwich Medical School, University of East Anglia, Norwich, UK
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Ellis LR, Boesch C, Dye L. Effects of Anthocyanins on Cognition and Vascular Function: A Systematic Review. Mol Nutr Food Res 2024; 68:e2300502. [PMID: 38961529 DOI: 10.1002/mnfr.202300502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 03/06/2024] [Indexed: 07/05/2024]
Abstract
SCOPE Good vascular function is crucial for cerebral blood flow and cognitive performance. Diets high in anthocyanins have been shown to improve vascular function and are associated with improvements in cognition. This systematic review investigates randomized controlled trials examining the impact of anthocyanin intake on both cognition and vascular function. METHODS AND RESULTS Of the 1486 studies identified through searching Ovid Medline and AMED, PsychInfo, Web of Science, and Scopus, 20 studies are selected which measured cognitive and vascular function. Overall, positive effects on verbal and working memory are observed, which are supported by studies using functional magnetic resonance imaging to demonstrate increased blood flow in brain regions related to these cognitive domains. However, effects of anthocyanins on blood pressure and markers of endothelial function are inconsistent. CONCLUSION This systematic review provides evidence for a positive effect of anthocyanins on cognition and insight into the relevance of endothelial function. Anthocyanins are widely available and can be easily consumed in a range of different fruits, vegetables, and other products. Further studies should establish the optimal daily intake of anthocyanins for cardiovascular and cognitive health.
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Affiliation(s)
- Lucy R Ellis
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, LS2 9JT, UK
| | - Christine Boesch
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds, LS2 9JT, UK
| | - Louise Dye
- School of Psychology, Faculty of Medicine and Health, University of Leeds, Leeds, LS2 9JT, UK
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds, LS2 9JT, UK
- Institute of Sustainable Food, University of Sheffield, Sheffield, S10 2TN, UK
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Velichkov M, Bezur Z, van Reekum CM, Williams CM. A biphasic response to blueberry supplementation on depressive symptoms in emerging adults: a double-blind randomized controlled trial. Eur J Nutr 2024; 63:1071-1088. [PMID: 38300292 PMCID: PMC11139700 DOI: 10.1007/s00394-023-03311-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 12/18/2023] [Indexed: 02/02/2024]
Abstract
PURPOSE The aim of the present study was to examine the acute and chronic effects of wild blueberry supplementation on mood, executive function, and serum biomarkers of neuroplasticity, inflammation, and oxidative stress in emerging adults with moderate-to-severe depressive symptoms. METHODS In this double-blind trial, 60 emerging adults (Mage = 20.0 years, 32% male) with self-reported depressive symptoms were randomly assigned to receive a single blueberry drink (acute phase), followed by 6 weeks of daily blueberry supplementation (chronic phase), or a matched placebo drink. The primary outcome was Beck Depression Inventory-II (BDI-II) scores at 6-week follow-up. Further measures included momentary affect (PANAS-X) and accuracy on an executive function task. The data were analyzed using ANCOVAs adjusted for baseline values, sex, and habitual fruit and vegetable intake. Estimated marginal means were calculated to compare the treatment arms. RESULTS The blueberry drink significantly improved positive affect (p = 0.026) and executive function (p = 0.025) at 2 h post-ingestion, with change scores being positively correlated in the blueberry group (r = 0.424, p = 0.017). However, after six weeks of supplementation the reduction in BDI-II scores was greater in the placebo group by 5.8 points (95% CI: 0.8-10.7, p = 0.023). Generalized anxiety and anhedonia also decreased significantly more in the placebo group. No significant differences were found for any of the biomarkers. CONCLUSIONS Six weeks of wild blueberry supplementation were inferior to placebo in reducing depressive symptoms. Nevertheless, the correlated improvements in positive affect and executive function after a single dose of blueberries point to a beneficial, albeit transient, psychological effect. These contrasting results suggest a biphasic, hormetic-like response that warrants further investigation. TRIAL REGISTRATION NCT04647019, dated 30 November, 2020.
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Affiliation(s)
- Martin Velichkov
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - Zsofia Bezur
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - Carien M van Reekum
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - Claire M Williams
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK.
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Townsend R, Fairley A, Gregory S, Ritchie C, Stevenson E, Shannon OM. Nutrition for dementia prevention: a state of the art update for clinicians. Age Ageing 2024; 53:ii30-ii38. [PMID: 38745491 DOI: 10.1093/ageing/afae030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Dementia prevalence continues to rise. It is therefore essential to provide feasible and effective recommendations to encourage healthy brain ageing and reduce dementia risk across the population. Appropriate nutrition represents a potential strategy to mitigate dementia risk and could be recommended by clinicians as part of mid-life health checks and other health initiatives to reduce dementia prevalence. The purpose of this review is to provide a clinician-focused update on the current state of the knowledge on nutrition and dementia prevention. METHODS Narrative review. RESULTS Strong evidence exists to support the consumption of healthy, plant-based dietary patterns (e.g. Mediterranean, MIND or Nordic diet) for maintaining cognitive function and reducing dementia risk in later life and is supported by dementia prevention guideline from leading public health bodies (e.g. World Health Organization). Emerging evidence suggests potential cognitive benefits of consuming specific nutrients/foods (e.g. n-3 fatty acids or fish, flavonols and B-vitamins) and multi-nutrient compounds (e.g. Fortasyn Connect). Challenges and opportunities for integrating nutritional/dietary interventions for dementia prevention into clinical practice are explored in this review. CONCLUSIONS Appropriate nutrition represents an important factor to help facilitate healthy cognitive ageing and allay dementia risk. The information provided in this article can help clinicians provide informed opinions on appropriate nutritional strategies as part of mid-life Health Checks and other risk reduction initiatives.
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Affiliation(s)
- Rebecca Townsend
- School of Biomedical, Nutritional and Sport Sciences, Human Nutrition & Exercise Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Andrea Fairley
- School of Biomedical, Nutritional and Sport Sciences, Human Nutrition & Exercise Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Sarah Gregory
- Edinburgh Dementia Prevention, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
- Scottish Brain Sciences, Edinburgh, UK
| | - Craig Ritchie
- Edinburgh Dementia Prevention, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
- Scottish Brain Sciences, Edinburgh, UK
- Brain Health and Neurodegenerative Medicine, Mackenzie Institute, University of St Andrews, St Andrews, UK
| | - Emma Stevenson
- School of Biomedical, Nutritional and Sport Sciences, Human Nutrition & Exercise Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Oliver M Shannon
- Human Nutrition & Exercise Research Centre, Population Health Sciences Institute, Centre for Healthier Lives, Newcastle University, Newcastle upon Tyne, UK
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Norouzkhani N, Afshari S, Sadatmadani SF, Mollaqasem MM, Mosadeghi S, Ghadri H, Fazlizade S, Alizadeh K, Akbari Javar P, Amiri H, Foroughi E, Ansari A, Mousazadeh K, Davany BA, Akhtari kohnehshahri A, Alizadeh A, Dadkhah PA, Poudineh M. Therapeutic potential of berries in age-related neurological disorders. Front Pharmacol 2024; 15:1348127. [PMID: 38783949 PMCID: PMC11112503 DOI: 10.3389/fphar.2024.1348127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 04/10/2024] [Indexed: 05/25/2024] Open
Abstract
Aging significantly impacts several age-related neurological problems, such as stroke, brain tumors, oxidative stress, neurodegenerative diseases (Alzheimer's, Parkinson's, and dementia), neuroinflammation, and neurotoxicity. Current treatments for these conditions often come with side effects like hallucinations, dyskinesia, nausea, diarrhea, and gastrointestinal distress. Given the widespread availability and cultural acceptance of natural remedies, research is exploring the potential effectiveness of plants in common medicines. The ancient medical system used many botanical drugs and medicinal plants to treat a wide range of diseases, including age-related neurological problems. According to current clinical investigations, berries improve motor and cognitive functions and protect against age-related neurodegenerative diseases. Additionally, berries may influence signaling pathways critical to neurotransmission, cell survival, inflammation regulation, and neuroplasticity. The abundance of phytochemicals in berries is believed to contribute to these potentially neuroprotective effects. This review aimed to explore the potential benefits of berries as a source of natural neuroprotective agents for age-related neurological disorders.
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Affiliation(s)
- Narges Norouzkhani
- Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shaghayegh Afshari
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | | | | | - Shakila Mosadeghi
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Hani Ghadri
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Safa Fazlizade
- Student Research Committee, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Keyvan Alizadeh
- Student Research Committee, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Pouyan Akbari Javar
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Hamidreza Amiri
- Student Research Committee, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Elaheh Foroughi
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Arina Ansari
- Student Research Committee, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Kourosh Mousazadeh
- School of Medicine, Islamic Azad University, Tehran Medical Branch, Tehran, Iran
| | | | - Ata Akhtari kohnehshahri
- Student Research Committee, Faculty of Medicine, Tabriz Medical Sciences, Islamic Azad University, Tabriz, Iran
| | - Alaleh Alizadeh
- Student Research Committee, Faculty of Medicine, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Parisa Alsadat Dadkhah
- Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohadeseh Poudineh
- Student Research Committee, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
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Fanelli Kuczmarski M, Crawford SB, Sebastian RS, Beydoun MA, Goldman JD, Moshfegh AJ, Evans MK, Zonderman AB. Association between Flavonoid Intake and Cognitive Executive Function among African American and White Adults in the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) Study. Nutrients 2024; 16:1360. [PMID: 38732605 PMCID: PMC11085386 DOI: 10.3390/nu16091360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/13/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Healthy dietary patterns rich in flavonoids may benefit cognitive performance over time. Among socioeconomically disadvantaged groups, the association between flavonoid intake and measures of cognition is unclear. This study sought to identify associations between flavonoid intake and cognitive performance among Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study participants (n = 1947) across three study visits. Flavonoid intakes were assessed via two 24-h dietary recalls. Cognitive performance was assessed via the Trail Making Test (TMT)-A and TMT-B, which provide measures of attention and executive function, respectively. Mixed effects linear regression was used to model TMT scores over three study visits against visit 1 (v1) flavonoid intake, time (years from v1), and the interaction between v1 flavonoid intake and time, capturing both the cross-sectional association between flavonoid intake and time at v1 as well as the longitudinal association between v1 flavonoid intake and the change in TMT scores over time. Prior to adjustment, inverse cross-sectional associations at v1 were observed between (1) anthocyanidin intake and TMT-A scores for the overall sample and (2) total flavonoid, anthocyanidin, flavan-3-ol, flavone, and flavonol intake and TMT-B scores for the overall sample and among White adults. Only the association between anthocyanidin intake and TMT-B at v1 among White adults persisted after adjustment (for demographic characteristics such as age). One possible explanation for the few significant associations is universally low flavonoid intakes resulting from the consumption of an unhealthy dietary pattern.
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Affiliation(s)
- Marie Fanelli Kuczmarski
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, NIH, Baltimore, MD 21224, USA; (M.A.B.); (M.K.E.); (A.B.Z.)
| | - Sara B. Crawford
- Food Surveys Research Group, Agricultural Research Service, United States Department of Agriculture, BARC-West, Beltsville, MD 20705, USA; (S.B.C.); (R.S.S.); (J.D.G.); (A.J.M.)
| | - Rhonda S. Sebastian
- Food Surveys Research Group, Agricultural Research Service, United States Department of Agriculture, BARC-West, Beltsville, MD 20705, USA; (S.B.C.); (R.S.S.); (J.D.G.); (A.J.M.)
| | - May A. Beydoun
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, NIH, Baltimore, MD 21224, USA; (M.A.B.); (M.K.E.); (A.B.Z.)
| | - Joseph D. Goldman
- Food Surveys Research Group, Agricultural Research Service, United States Department of Agriculture, BARC-West, Beltsville, MD 20705, USA; (S.B.C.); (R.S.S.); (J.D.G.); (A.J.M.)
| | - Alanna J. Moshfegh
- Food Surveys Research Group, Agricultural Research Service, United States Department of Agriculture, BARC-West, Beltsville, MD 20705, USA; (S.B.C.); (R.S.S.); (J.D.G.); (A.J.M.)
| | - Michele K. Evans
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, NIH, Baltimore, MD 21224, USA; (M.A.B.); (M.K.E.); (A.B.Z.)
| | - Alan B. Zonderman
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, NIH, Baltimore, MD 21224, USA; (M.A.B.); (M.K.E.); (A.B.Z.)
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Cheng N, Barfoot KL, Le Cozannet R, Fança-Berthon P, Lamport DJ, Williams CM. Wild Blueberry Extract Intervention in Healthy Older Adults: A Multi-Study, Randomised, Controlled Investigation of Acute Cognitive and Cardiovascular Effects. Nutrients 2024; 16:1180. [PMID: 38674870 PMCID: PMC11054866 DOI: 10.3390/nu16081180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Circadian and homeostatic declines in cognitive performance are observed during the day, most commonly at 14:00. Additionally, postprandial reductions in cognitive ability have been widely demonstrated 1 h after lunch consumption, affecting domains of executive functioning (EF), episodic memory (EM), and attention. Existing evidence shows that anthocyanin-rich foods such as berries may improve or attenuate the decline in EF and EM in ageing adults. Further research is required to assess whether extracts such as wild blueberry extract (WBE) may be beneficial for cognitive function across an acute timeframe, including known periods of reduced functioning. OBJECTIVES (1) Study 1: ROAB: To investigate the efficacy of WBE in maintaining EF and EM throughout the day alongside measures of cardiovascular outcomes in healthy older adults. A range of WBE doses were utilised to identify the optimal dose at which cognitive and cardiovascular effects occur. (2) Study 2: BEAT: To replicate alleviation of cognitive decline during a predicted post-lunch dip whilst also improving cardiovascular outcomes following acute WBE 222 mg supplementation. METHODS Both studies employed a randomised, double-blind, cross-over, placebo-controlled design to explore the effects of WBE intervention versus placebo on several outcomes, including EM, EF, blood pressure, and heart rate in a healthy older adult population (aged 68-75). In ROAB, 28 participants received a single dose of WBE 111 mg, 222 mg, 444 mg, or 888 mg or placebo over a 5-week period, each separated by a 1-week washout. Outcomes were measured at 0 h, 2 h, 4 h, and 6 h post intervention, with intervention occurring immediately after baseline (0 h). In BEAT, 45 participants received WBE 222 mg and placebo (1-week washout). Outcomes were measured at 0 h and 6 h (14:00) when a post-lunch dip was anticipated. This was further enhanced by consumption of lunch 1 h prior to cognitive testing. The WBE 222 mg intervention aligned with known peaks in plasma blueberry polyphenol metabolites at 2 h post dosing, which would coincide with a predicted drop in post-lunch performance. RESULTS ROAB: A significant dip in executive function was apparent at the 4 h timepoint for placebo only, indicating attenuation for WBE doses. Strikingly, WBE 222 mg produced acute reductions in both systolic and diastolic blood pressure compared with placebo. BEAT: EF reaction time was found to be significantly faster for WBE 222 compared to placebo at the predicted post-lunch dip (14:00), with no other notable benefits on a range of cognitive and cardiovascular outcomes. CONCLUSION These two studies indicate that WBE may have cardiovascular benefits and attenuate the natural cognitive decline observed over the course of the day, particularly when a decline is associated with a circadian rhythm-driven postprandial dip. However, it is important to acknowledge that effects were subtle, and benefits were only observed on a small number of outcomes. Further research is required to explore the utility of WBE in populations already experiencing mild cognitive impairments.
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Affiliation(s)
- Nancy Cheng
- School of Psychology and Clinical Language Sciences, University of Reading, Reading RG6 6ES, UK; (N.C.); (K.L.B.); (D.J.L.)
| | - Katie L. Barfoot
- School of Psychology and Clinical Language Sciences, University of Reading, Reading RG6 6ES, UK; (N.C.); (K.L.B.); (D.J.L.)
| | - Romain Le Cozannet
- Givaudan France Naturals, 250 rue Pierre Bayle, BP 81218, 84911 Avignon, France; (R.L.C.); (P.F.-B.)
| | - Pascale Fança-Berthon
- Givaudan France Naturals, 250 rue Pierre Bayle, BP 81218, 84911 Avignon, France; (R.L.C.); (P.F.-B.)
| | - Daniel J. Lamport
- School of Psychology and Clinical Language Sciences, University of Reading, Reading RG6 6ES, UK; (N.C.); (K.L.B.); (D.J.L.)
| | - Claire M. Williams
- School of Psychology and Clinical Language Sciences, University of Reading, Reading RG6 6ES, UK; (N.C.); (K.L.B.); (D.J.L.)
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Hamel R, Oyler R, Harms E, Bailey R, Rendeiro C, Jenkinson N. Dietary Cocoa Flavanols Do Not Alter Brain Excitability in Young Healthy Adults. Nutrients 2024; 16:969. [PMID: 38613003 PMCID: PMC11013095 DOI: 10.3390/nu16070969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/21/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
The ingestion of dietary cocoa flavanols acutely alters functions of the cerebral endothelium, but whether the effects of flavanols permeate beyond this to alter other brain functions remains unclear. Based on converging evidence, this work tested the hypothesis that cocoa flavanols would alter brain excitability in young healthy adults. In a randomised, cross-over, double-blinded, placebo-controlled design, transcranial magnetic stimulation was used to assess corticospinal and intracortical excitability before as well as 1 and 2 h post-ingestion of a beverage containing either high (695 mg flavanols, 150 mg (-)-epicatechin) or low levels (5 mg flavanols, 0 mg (-)-epicatechin) of cocoa flavanols. In addition to this acute intervention, the effects of a short-term chronic intervention where the same cocoa flavanol doses were ingested once a day for 5 consecutive days were also investigated. For both the acute and chronic interventions, the results revealed no robust alteration in corticospinal or intracortical excitability. One possibility is that cocoa flavanols yield no net effect on brain excitability, but predominantly alter functions of the cerebral endothelium in young healthy adults. Future studies should increase intervention durations to maximize the acute and chronic accumulation of flavanols in the brain, and further investigate if cocoa flavanols would be more effective at altering brain excitability in older adults and clinical populations than in younger adults.
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Affiliation(s)
- Raphael Hamel
- School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham B15 2TT, UK
- Centre for Human Brain Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK
| | - Rebecca Oyler
- School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Evie Harms
- School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Rosamond Bailey
- School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Catarina Rendeiro
- School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham B15 2TT, UK
- Centre for Human Brain Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK
| | - Ned Jenkinson
- School of Sports, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham B15 2TT, UK
- Centre for Human Brain Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK
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Colombage RL, Holden S, Lamport DJ, Barfoot KL. The effects of flavonoid supplementation on the mental health of postpartum parents. Front Glob Womens Health 2024; 5:1345353. [PMID: 38577523 PMCID: PMC10993701 DOI: 10.3389/fgwh.2024.1345353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/27/2024] [Indexed: 04/06/2024] Open
Abstract
Introduction During the postpartum period, parents face psychological challenges and consequently, changes in mood and associated mood disorders have become increasingly prevalent in the 6-months following birth. Dietary flavonoids have been found to benefit mood and are therefore an appealing non-pharmacological option for potentially treating mood disorders in the postpartum. The aim of this study was to investigate whether a two-week dietary flavonoid intervention would improve mothers' and fathers' mental health in the immediate 6-month postpartum period. Method The study employed a randomised, parallel groups, controlled design to explore the effects of a flavonoid intervention vs. control group on several outcomes, including mood (PANAS), postpartum depression (EPDS), postpartum anxiety (PSAS-RSF-C) and quality of life (WHOQOL). Sixty participants (mothers n = 40, fathers n = 20) in the 6-month post-partum period were randomised to either a "flavonoid" or "control" condition. The flavonoid group were asked to add two flavonoid-rich foods (approximate flavonoid intake 218 mg/day) into their daily diet whilst controls (n = 23) were asked to continue with their usual diet for two-weeks (ClinicalTrials.gov (NCT04990622). Results Significant effects were found in the flavonoid group where mothers reported higher positive affect and lower postpartum depression after the two-week intervention relative to baseline. This finding is especially relevant as a clinical reduction in postpartum depression scores in the flavonoid group by an average 2.6 scoring points was observed, which equated to a reduction from "possible depression" at baseline to "little or no depression" at 2-weeks, which was not observed in the control group. Fathers' data was not analysed due to non-compliance with the intervention. Discussion This study provides evidence for the benefits of a dietary flavonoid intervention for mood and mental health in new mothers, supporting the utility of non-pharmacological, self-administrable changes to the diet for improving positive mood outcomes and reducing symptoms of postpartum depression in mothers during an especially challenging time. Further research for the effect of dietary interventions on paternal mental health is needed. Clinical Trial Registration ClinicalTrials.gov, identifier NCT04990622.
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Affiliation(s)
| | | | | | - Katie Louise Barfoot
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, United Kingdom
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Rodriguez-Mateos A. Another piece in the complex puzzle of biological responses to (poly)phenols. Am J Clin Nutr 2024; 119:595-596. [PMID: 38326143 DOI: 10.1016/j.ajcnut.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 01/17/2024] [Indexed: 02/09/2024] Open
Affiliation(s)
- Ana Rodriguez-Mateos
- Department of Nutritional Sciences, School of Life Course and Population Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.
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13
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Chen H, Dunk MM, Wang B, Zhao M, Shen J, Zong G, Pan Y, Tong L, Xu W, Yuan C. Associations of the Mediterranean-DASH Intervention for Neurodegenerative Delay diet with brain structural markers and their changes. Alzheimers Dement 2024; 20:1190-1200. [PMID: 37932860 PMCID: PMC10917040 DOI: 10.1002/alz.13521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/19/2023] [Accepted: 10/02/2023] [Indexed: 11/08/2023]
Abstract
INTRODUCTION The associations of the Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet with brain structural changes are unclear. METHODS Among 26,466 UK Biobank participants, a 15-point MIND score was calculated from 24-hour diet recalls from 2009 to 2012. We assessed its associations with 17 magnetic-resonance-derived brain volumetric markers and their longitudinal changes and explored whether genetic factors modify the associations. RESULTS Higher MIND adherence was associated with larger volumes of thalamus, putamen, pallidum, hippocampus, and accumbens (beta per 3-unit increment ranging from 0.024 to 0.033) and lower white matter hyperintensities (P-trends < 0.05), regardless of genetic predispositions of Alzheimer's disease. MIND score was not associated with their longitudinal changes (P > 0.05) over a median of 2.2 years among participants with repeated imaging assessments (N = 2963), but was associated with slower atrophy in putamen (beta: 0.026, P-trend = 0.044) and pallidum (beta: 0.030, P-trend = 0.033) among APOE ε4 non-carriers (N = 654). DISCUSSION The MIND diet showed beneficial associations with certain brain imaging markers, and its associations with long-term brain structural changes warrants future investigation. HIGHLIGHTS Adherence to the Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet was significantly associated with higher volumes and larger gray matter volumes in certain brain regions in UK adults, and the associations were not modified by genetic factors. No significant associations were observed between MIND diet and longitudinal changes in the investigated brain structural markers over a median of 2.2 years. Higher MIND score was significantly associated with slower atrophy in the putamen and pallidum among APOE ε4 non-carriers.
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Affiliation(s)
- Hui Chen
- School of Public Healththe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Michelle M. Dunk
- Aging Research CenterDepartment of NeurobiologyCare Sciences and SocietyKarolinska Institute and Stockholm UniversityStockholmSweden
| | - Binghan Wang
- School of Public Healththe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Mengjia Zhao
- School of Public Healththe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Jie Shen
- School of Public Healththe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Geng Zong
- CAS Key Laboratory of NutritionMetabolism and Food SafetyShanghai Institute of Nutrition and HealthUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghaiChina
| | - Yuesong Pan
- Department of NeurologyBeijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Lusha Tong
- Department of Neurologythe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Weili Xu
- Aging Research CenterDepartment of NeurobiologyCare Sciences and SocietyKarolinska Institute and Stockholm UniversityStockholmSweden
| | - Changzheng Yuan
- School of Public Healththe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Department of NutritionHarvard T. H. Chan School of Public HealthBostonMassachusettsUSA
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14
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Godos J, Micek A, Mena P, Del Rio D, Galvano F, Castellano S, Grosso G. Dietary (Poly)phenols and Cognitive Decline: A Systematic Review and Meta-Analysis of Observational Studies. Mol Nutr Food Res 2024; 68:e2300472. [PMID: 37888840 DOI: 10.1002/mnfr.202300472] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/26/2023] [Indexed: 10/28/2023]
Abstract
SCOPE This study aims to systematically review observational studies investigating the relation between dietary (poly)phenol consumption and various cognitive outcomes. METHODS AND RESULTS Embase and PubMed databases are searched from inception to April 2023 for observational studies investigating the relation between dietary (poly)phenol intake and cognitive outcomes. For quantitative analyses, random effects models, subgroup analyses, and dose-response analyses are performed. A total of 37 studies are included in the systematic review. Among (poly)phenols, a higher intake of flavonoids is associated with better cognitive function and lower odds of cognitive decline (although with some exceptions). A quantitative meta-analysis shows an overall inverse association with cognitive impairment and reduced association with the incidence of dementia or related disorders for total flavonoids (relative risk (RR) = 0.83, 95% confidence interval (CI): 0.76, 0.89), anthocyanins (RR = 0.73, 95% CI: 0.60, 0.89), flavones (RR = 0.77, 95% CI: 0.63, 0.94), flavan-3-ols (RR = 0.86, 95% CI: 0.82, 0.91), and flavonols (RR = 0.88, 95% CI: 0.80, 0.96). Data on other (poly)phenolic compounds (i.e., phenolic acids) are promising but too preliminary. CONCLUSION Habitual inclusion of flavonoids in the diet may play a preventive role against cognitive disorders.
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Affiliation(s)
- Justyna Godos
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, 95123, Italy
| | - Agnieszka Micek
- Statistical Laboratory, Faculty of Health Sciences, Jagiellonian University Medical College, Kraków, 31-501, Poland
| | - Pedro Mena
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, 43125, Italy
| | - Daniele Del Rio
- Human Nutrition Unit, Department of Food and Drug, University of Parma, Parma, 43125, Italy
| | - Fabio Galvano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, 95123, Italy
| | - Sabrina Castellano
- Department of Educational Sciences, University of Catania, Catania, 95124, Italy
| | - Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, 95123, Italy
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15
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Charbit J, Vidal JS, Hanon O. The role of nutrition in the prevention of cognitive decline. Curr Opin Clin Nutr Metab Care 2024; 27:9-16. [PMID: 38001066 DOI: 10.1097/mco.0000000000001002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2023]
Abstract
PURPOSE OF REVIEW Dementia is a growing concern and underscores the urgent need for effective preventive measures targeting modifiable risk factors. Nutrition is a key player in the onset and progression of inflammation and cognitive decline. This review provides a comprehensive overview of the effects of different dietary patterns, vitamins and nutrients for preventing cognitive decline, mainly among healthy individuals and those with mild cognitive impairment. RECENT FINDINGS The Mediterranean diet, omega-3 long-chain polyunsaturated fatty acids and B vitamins are the most investigated, with evidence supporting protection against cognitive decline among older adults varying across studies. More recent interventions examined in this review, such as MIND Diet, are promising with positive results, but further research is needed to conclusively establish their efficacy. It is also crucial to consider complete lifestyle as physical activity for preventing cognitive decline. SUMMARY Definitive conclusions are difficult to draw. Future studies should adopt a comprehensive approach and focus on multinutrient strategies and whole diets.
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Affiliation(s)
- Judith Charbit
- Université Paris Cité, Service Gérontologie Hôpital Broca
| | | | - Olivier Hanon
- Université Paris Cité, Chef de service Gérontologie Hôpital Broca, AP-HP, Paris, France
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16
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Amidfar M, Garcez ML, Askari G, Bagherniya M, Khorvash F, Golpour-Hamedani S, de Oliveira J. Role of BDNF Signaling in the Neuroprotective and Memory-enhancing Effects of Flavonoids in Alzheimer's Disease. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:984-995. [PMID: 37702162 DOI: 10.2174/1871527323666230912090856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/27/2023] [Accepted: 07/18/2023] [Indexed: 09/14/2023]
Abstract
BACKGROUND Foods rich in flavonoids are associated with a reduced risk of various chronic diseases, including Alzheimer's disease (AD). In fact, growing evidence suggests that consuming flavonoid- rich foods can beneficially affect normal cognitive function. Animal models have shown that many flavonoids prevent the development of AD-like pathology and improve cognitive deficits. OBJECTIVE Identifying the molecular causes underlying the memory-enhancing effect of flavonoid-rich foods makes it possible to provide the best diet to prevent cognitive decline associated with aging and Alzheimer's disease. Based on the most recent scientific literature, this review article critically examines the therapeutic role of dietary flavonoids in ameliorating and preventing the progression of AD and enhancement of memory with a focus on the role of the BDNF signaling pathway. METHODS The databases of PubMed, Web of Science, Google Scholar, and Scopus were searched up to March 2023 and limited to English language. Search strategies were using the following keywords in titles and abstracts: (Flavonoid-rich foods OR Flavonoids OR Polyphenols); AND (Brain-Derived Neurotrophic Factor OR BDNF OR CREB OR) AND (Alzheimer's disease OR memory OR cognition OR). RESULTS Flavonoid-rich foods including green tea, berries, curcumin and pomegranate exert their beneficial effects on memory decline associated with aging and Alzheimer's disease mostly through the direct interaction with BDNF signaling pathway. CONCLUSION The neuroprotective effects of flavonoid-rich foods through the CREB-BDNF mechanism have the potential to prevent or limit memory decline due to aging and Alzheimer's disease, so their consumption throughout life may prevent age-related cognitive impairment.
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Affiliation(s)
- Meysam Amidfar
- Nutrition and Food Security Research Center, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Michelle Lima Garcez
- Graduate Program of Research and Extension (CEPEG), University Center of Espirito Santo, Espírito Santo, Brazil
| | - Gholamreza Askari
- Nutrition and Food Security Research Center, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Bagherniya
- Nutrition and Food Security Research Center, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fariborz Khorvash
- Department of Neurology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sahar Golpour-Hamedani
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jade de Oliveira
- Postgraduate Program in Biological Sciences: Biochemistry, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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17
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Le Sayec M, Carregosa D, Khalifa K, de Lucia C, Aarsland D, Santos CN, Rodriguez-Mateos A. Identification and quantification of (poly)phenol and methylxanthine metabolites in human cerebrospinal fluid: evidence of their ability to cross the BBB. Food Funct 2023; 14:8893-8902. [PMID: 37701930 PMCID: PMC10544810 DOI: 10.1039/d3fo01913f] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/31/2023] [Indexed: 09/14/2023]
Abstract
Increasing evidence suggests that dietary (poly)phenols and methylxanthines have neuroprotective effects; however, little is known about whether they can cross the blood-brain barrier (BBB) and exert direct effects on the brain. We investigated the presence of (poly)phenol and methylxanthine metabolites in plasma and cerebrospinal fluid (CSF) from 90 individuals at risk of dementia using liquid chromatography-mass spectrometry and predicted their mechanism of transport across the BBB using in silico modelling techniques. A total of 123 and 127 metabolites were detected in CSF and plasma, respectively. In silico analysis suggests that 5 of the 20 metabolites quantified in CSF can cross the BBB by passive diffusion, while at least 9 metabolites require the aid of cell transporters to cross the BBB. Our results showed that (poly)phenols and methylxanthines are bioavailable, can cross the BBB via passive diffusion or transport carriers, and can reach brain tissues to exert neuroprotective effects.
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Affiliation(s)
- Melanie Le Sayec
- Department of Nutritional Sciences, School of Life Course and Population Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.
| | - Diogo Carregosa
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Khadija Khalifa
- Centre for Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway
| | - Chiara de Lucia
- Centre for Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Dag Aarsland
- Centre for Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Cláudia N Santos
- iNOVA4Health, NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Ana Rodriguez-Mateos
- Department of Nutritional Sciences, School of Life Course and Population Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.
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18
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Shahabi M, Idrees R. Flavanols for Age-related Memory Loss: A Promising Nutritional Intervention. Ann Neurosci 2023; 30:222-223. [PMID: 38020404 PMCID: PMC10662273 DOI: 10.1177/09727531231195683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023] Open
Affiliation(s)
- Mariam Shahabi
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Rahma Idrees
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
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19
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Zuelch ML, Radtke MD, Holt RR, Basu A, Burton-Freeman B, Ferruzzi MG, Li Z, Shay NF, Shukitt-Hale B, Keen CL, Steinberg FM, Hackman RM. Perspective: Challenges and Future Directions in Clinical Research with Nuts and Berries. Adv Nutr 2023; 14:1005-1028. [PMID: 37536565 PMCID: PMC10509432 DOI: 10.1016/j.advnut.2023.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 07/11/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023] Open
Abstract
Consumption of nuts and berries are considered part of a healthy eating pattern. Nuts and berries contain a complex nutrient profile consisting of essential vitamins and minerals, fiber, polyunsaturated fatty acids, and phenolics in quantities that improve physiological outcomes. The spectrum of health outcomes that may be impacted by the consumptions of nuts and berries includes cardiovascular, gut microbiome, and cognitive, among others. Recently, new insights regarding the bioactive compounds found in both nuts and berries have reinforced their role for use in precision nutrition efforts. However, challenges exist that can affect the generalizability of outcomes from clinical studies, including inconsistency in study designs, homogeneity of test populations, variability in test products and control foods, and assessing realistic portion sizes. Future research centered on precision nutrition and multi-omics technologies will yield new insights. These and other topics such as funding streams and perceived risk-of-bias were explored at an international nutrition conference focused on the role of nuts and berries in clinical nutrition. Successes, challenges, and future directions with these foods are presented here.
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Affiliation(s)
- Michelle L Zuelch
- Department of Nutrition, University of California, Davis, CA, United States
| | - Marcela D Radtke
- Department of Nutrition, University of California, Davis, CA, United States
| | - Roberta R Holt
- Department of Nutrition, University of California, Davis, CA, United States
| | - Arpita Basu
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, NV, United States
| | - Britt Burton-Freeman
- Department of Food Science and Nutrition, Illinois Institute of Technology, Chicago, IL, United States
| | - Mario G Ferruzzi
- Department of Pediatrics, Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Zhaoping Li
- UCLA Center for Human Nutrition, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Neil F Shay
- Department of Food Science and Technology, Oregon State University, Corvallis, OR, United States
| | - Barbara Shukitt-Hale
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, United States
| | - Carl L Keen
- Department of Nutrition, University of California, Davis, CA, United States; Department of Internal Medicine, University of California, Davis, CA, United States
| | | | - Robert M Hackman
- Department of Nutrition, University of California, Davis, CA, United States.
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20
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Hersant H, He S, Maliha P, Grossberg G. Over the Counter Supplements for Memory: A Review of Available Evidence. CNS Drugs 2023; 37:797-817. [PMID: 37603263 DOI: 10.1007/s40263-023-01031-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/24/2023] [Indexed: 08/22/2023]
Abstract
In 2021, the Global Brain Health Supplement Industry Market size was valued at US$7.6 billion. It is predicted to increase to US$15.59 billion by 2030. Memory and its enhancement are a segment of the market that comprised the highest global revenue share in 2021. In the USA alone, dietary supplement sales reached US$18 billion in 2018. The US Food and Drug Administration (FDA) does not have the authority to approve dietary supplements' safety, effectiveness, or labeling before products go on the market. The FDA often does not even review supplements before they go to market. Supplement manufacturers are thus responsible for ensuring their products are safe and that their claims are truthful. An extensive review of current supplements on the market was performed by surveying memory products for sale at local and national pharmacies and grocery stores. A list of 103 supplements was compiled and the ingredients in these memory supplements were reviewed. The 18 most common ingredients in these supplements were identified. Each of the supplements included at least one of the 18 most common ingredients. Scientific data relative to these ingredients and their effect on memory was searched using PubMed and Cochrane library databases. Currently, there is no compelling evidence for use of apoaequorin, coenzyme Q10, coffee extracts, L-theanine, omega-3 fatty acids, vitamin B6, vitamin B9, or vitamin B12 supplementation for memory. On the other hand, there is some current evidence for memory benefit from supplementation with ashwagandha, choline, curcumin, ginger, Lion's Mane, polyphenols, phosphatidylserine, and turmeric. There are current studies with mixed results regarding the benefit of carnitine, gingko biloba, Huperzine A, vitamin D, and vitamin E supplementation for memory. Dietary supplements geared toward improving cognition are a billion-dollar industry that continues to grow despite lacking a solid scientific foundation for their marketing claims. More rigorous studies are needed relative to the long-term use of these supplements in homogenous populations with standardized measurements of cognition. Health care providers need to be aware of any and all supplements their older adult patients may be consuming and be educated about their side effects and interactions with prescription medications. Lastly, the FDA needs to take an active position relative to monitoring marketed supplements regarding safety, purity and claims of efficacy.
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Affiliation(s)
- Haley Hersant
- Department of Psychiatry & Behavioral Neuroscience, Saint Louis University School of Medicine, 1438 South Grand Boulevard, Saint Louis, MO, 63104, USA.
| | - Sean He
- Department of Psychiatry & Behavioral Neuroscience, Saint Louis University School of Medicine, 1438 South Grand Boulevard, Saint Louis, MO, 63104, USA
| | - Peter Maliha
- Department of Psychiatry & Behavioral Neuroscience, Saint Louis University School of Medicine, 1438 South Grand Boulevard, Saint Louis, MO, 63104, USA
| | - George Grossberg
- Department of Psychiatry & Behavioral Neuroscience, Saint Louis University School of Medicine, 1438 South Grand Boulevard, Saint Louis, MO, 63104, USA
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21
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Ziegler T, Tsiountsioura M, Meixner-Goetz L, Cvirn G, Lamprecht M. Polyphenols' Impact on Selected Biomarkers of Brain Aging in Healthy Middle-Aged and Elderly Subjects: A Review of Clinical Trials. Nutrients 2023; 15:3770. [PMID: 37686802 PMCID: PMC10490411 DOI: 10.3390/nu15173770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/25/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
With a constantly growing elderly population, incidences of neurodegenerative diseases are also rising and are expected to further increase over the next years, while costing health systems across the world trillions of dollars. Therefore, biomarkers to detect manifestations of brain aging early and interventions to slow down its pace are of great interest. In the last years, the importance of the neurotrophins brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) in the context of cognitive function and the aging brain has increased, besides the already well-established amyloid-beta (Aβ) and tau plaques. Due to their wide range of beneficial health effects as well as their antioxidant and anti-inflammatory properties, a class of secondary plant-metabolites, the so-called polyphenols, gained increasing attention. In this review, we discuss the roles of BDNF, Aβ, NGF, and tau proteins as biomarkers of brain aging and the effect of dietary polyphenol interventions on these biomarkers, assessed via blood analysis, magnetic resonance imaging (MRI), and positron emission tomography (PET).
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Affiliation(s)
- Tobias Ziegler
- Division of Medicinal Chemistry, Otto Loewi Research Center, Medical University of Graz, 8010 Graz, Austria; (T.Z.); (M.T.); (G.C.)
- Juice Plus+ Science Institute, Memphis, TN 38017, USA;
| | - Melina Tsiountsioura
- Division of Medicinal Chemistry, Otto Loewi Research Center, Medical University of Graz, 8010 Graz, Austria; (T.Z.); (M.T.); (G.C.)
- Juice Plus+ Science Institute, Memphis, TN 38017, USA;
| | | | - Gerhard Cvirn
- Division of Medicinal Chemistry, Otto Loewi Research Center, Medical University of Graz, 8010 Graz, Austria; (T.Z.); (M.T.); (G.C.)
| | - Manfred Lamprecht
- Juice Plus+ Science Institute, Memphis, TN 38017, USA;
- Green Beat Institute of Nutrient Research, 8010 Graz, Austria
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22
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Zhang Y, Pan J, Liu Y, Zhang X, Cheng K. Effects of Ficus pandurata Hance var. angustifolia Cheng Flavonoids on Intestinal Barrier and Cognitive Function by Regulating Intestinal Microbiota. Foods 2023; 12:foods12081682. [PMID: 37107477 PMCID: PMC10137925 DOI: 10.3390/foods12081682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/25/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
More and more evidence has supported the interaction between circadian rhythms and intestinal microbes, which provides new insights into how dietary nutrition can improve host health. Our research showed that Ficus pandurata Hance var. angustifolia Cheng flavonoids (FCF) ameliorated the pathological damage of colon and abnormal intestinal microflora structure in mice with circadian clock disorder and improved their exploration and memory behaviors. Mechanism studies have shown that FCF is involved in regulating metabolic pathways and related metabolites, regulating the expression of related tight junction proteins in the colon and the levels of Aβ and inflammatory factors in the hippocampus. Further analysis found that these metabolites showed a certain correlation with intestinal flora and played a certain role in alleviating intestinal physiological damage and cognitive decline.
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Affiliation(s)
- Yuting Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China
| | - Junjie Pan
- Chemical Biology Center, Lishui Institute of Agriculture and Forestry Sciences, Lishui 323000, China
| | - Yanan Liu
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China
| | - Kejun Cheng
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China
- Chemical Biology Center, Lishui Institute of Agriculture and Forestry Sciences, Lishui 323000, China
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23
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Yelland S, Steenson S, Creedon A, Stanner S. The role of diet in managing menopausal symptoms: A narrative review. NUTR BULL 2023; 48:43-65. [PMID: 36792552 DOI: 10.1111/nbu.12607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 02/17/2023]
Abstract
Menopause is a natural stage that occurs when women stop menstruating, during which many women experience physical and psychological symptoms that can affect their quality of life and ability to work. Dietary modifications and food supplements may be explored by some women as alternatives to hormone replacement therapy, although existing reviews and expert position statements have given this limited consideration. This narrative review summarises the current evidence for dietary patterns, and botanical and food supplements, in the management of common menopausal symptoms, including vasomotor symptoms (VMS; hot flushes; night sweats), changes in bodyweight and composition, psychological symptoms (depression; anxiety; cognitive changes), sleep disturbances, joint pain, skin changes and urogenital symptoms. Soy isoflavones may reduce the frequency and/or severity of VMS, although results are inconsistent, and it is unclear whether dietary and supplemental sources have comparable effects. Adopting a healthier dietary pattern may support a healthy bodyweight and benefit VMS. However, evidence suggesting dietary patterns may benefit depression, anxiety, and cognition remains largely observational. While some botanicals, such as black cohosh and St John's Wort, have been reported in some studies to alleviate symptoms (such as VMS and depression), these are not currently recommended due to uncertainty about the appropriate dose and preparation, and potential safety concerns. Evidence for other symptoms is currently too limited to draw conclusions. While further trials at different menopausal stages are needed, adopting a healthier dietary pattern in accordance with dietary guidelines is likely to help support women's health before, during and after the menopausal transition.
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24
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Amin AM, Mostafa H, Khojah HMJ. Insulin resistance in Alzheimer's disease: The genetics and metabolomics links. Clin Chim Acta 2023; 539:215-236. [PMID: 36566957 DOI: 10.1016/j.cca.2022.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/16/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease with significant socioeconomic burden worldwide. Although genetics and environmental factors play a role, AD is highly associated with insulin resistance (IR) disorders such as metabolic syndrome (MS), obesity, and type two diabetes mellitus (T2DM). These findings highlight a shared pathogenesis. The use of metabolomics as a downstream systems' biology (omics) approach can help to identify these shared metabolic traits and assist in the early identification of at-risk groups and potentially guide therapy. Targeting the shared AD-IR metabolic trait with lifestyle interventions and pharmacological treatments may offer promising AD therapeutic approach. In this narrative review, we reviewed the literature on the AD-IR pathogenic link, the shared genetics and metabolomics biomarkers between AD and IR disorders, as well as the lifestyle interventions and pharmacological treatments which target this pathogenic link.
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Affiliation(s)
- Arwa M Amin
- Department of Clinical and Hospital Pharmacy, College of Pharmacy, Taibah University, Madinah, Saudi Arabia.
| | - Hamza Mostafa
- Biomarkers and Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, Food Innovation Network (XIA), Nutrition and Food Safety Research Institute (INSA), Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain; Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid 28029, Spain
| | - Hani M J Khojah
- Department of Clinical and Hospital Pharmacy, College of Pharmacy, Taibah University, Madinah, Saudi Arabia
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Mena P, Crozier A. Do (Poly)phenols Matter for Nutrition Research? News from the Front. Mol Nutr Food Res 2022; 66:e2200617. [DOI: 10.1002/mnfr.202200617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pedro Mena
- Human Nutrition Unit Department of Food and Drug University of Parma Parma 43124 Italy
- Microbiome Research Hub University of Parma Parma 43124 Italy
| | - Alan Crozier
- Department of Chemistry King Saud University Riyadh 12372 Saudi Arabia
- School of Medicine, Dentistry and Nursing University of Glasgow Glasgow G12 8QQ UK
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Flavonoids as Promising Neuroprotectants and Their Therapeutic Potential against Alzheimer’s Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6038996. [PMID: 36071869 PMCID: PMC9441372 DOI: 10.1155/2022/6038996] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 08/10/2022] [Indexed: 02/08/2023]
Abstract
Alzheimer's disease (AD) is one of the serious and progressive neurodegenerative disorders in the elderly worldwide. Various genetic, environmental, and lifestyle factors are associated with its pathogenesis that affect neuronal cells to degenerate over the period of time. AD is characterized by cognitive dysfunctions, behavioural disability, and psychological impairments due to the accumulation of amyloid beta (Aβ) peptides and neurofibrillary tangles (NFT). Several research reports have shown that flavonoids are the polyphenolic compounds that significantly improve cognitive functions and inhibit or delay the amyloid beta aggregation or NFT formation in AD. Current research has uncovered that dietary use of flavonoid-rich food sources essentially increases intellectual abilities and postpones or hinders the senescence cycle and related neurodegenerative problems including AD. During AD pathogenesis, multiple signalling pathways are involved and to target a single pathway may relieve the symptoms but not provides the permanent cure. Flavonoids communicate with different signalling pathways and adjust their activities, accordingly prompting valuable neuroprotective impacts. Flavonoids likewise hamper the movement of obsessive indications of neurodegenerative disorders by hindering neuronal apoptosis incited by neurotoxic substances. In this short review, we briefly discussed about the classification of flavonoids and their neuroprotective properties that could be used as a potential source for the treatment of AD. In this review, we also highlight the structural features of flavonoids, their beneficial roles in human health, and significance in plants as well as their microbial production.
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Rodrigo-Gonzalo MJ, González-Manzano S, Mendez-Sánchez R, Santos-Buelga C, Recio-Rodríguez JI. Effect of Polyphenolic Complements on Cognitive Function in the Elderly: A Systematic Review. Antioxidants (Basel) 2022; 11:antiox11081549. [PMID: 36009271 PMCID: PMC9404940 DOI: 10.3390/antiox11081549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 12/03/2022] Open
Abstract
Polyphenols have been shown to be effective against many chronic diseases. These compounds could have a beneficial effect at the cognitive level. The exact mechanism by which they provide positive effects at the cognitive level is not well known, but it is believed that they could counteract neuroinflammation. The objective of this study is to review nutritional interventions that include foods or supplements rich in flavanols, flavonols, or stilbenes to the usual diet on cognitive deterioration in people over 50 years of age. Clinical trials published in PubMed and Web of Science from 1 March 2010 to 1 March 2020 were explored, from which 14 studies were selected. All of them showed some improvement after the intervention. In interventions with flavanols and stilbenes, relevant improvements have been observed both in healthy patients and in patients with established cognitive impairment. Most studies agree that the greatest benefits are found with high doses and longer duration treatments. The changes were fundamentally assessed through cognitive tests, and in some of the studies, through magnetic resonance imaging (fMRI). The type of cognitive test used to assess the effect of the intervention was revealed to be critical. Several studies have also shown improvements in analytical parameters and blood pressure.
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Affiliation(s)
- María José Rodrigo-Gonzalo
- Grupo de Investigación de Polifenoles (GIP-USAL), Universidad de Salamanca, E-37007 Salamanca, Spain
- Facultad de Enfermería y Fisioterapia, Universidad de Salamanca, E-37007 Salamanca, Spain
| | - Susana González-Manzano
- Grupo de Investigación de Polifenoles (GIP-USAL), Universidad de Salamanca, E-37007 Salamanca, Spain
- Facultad de Enfermería y Fisioterapia, Universidad de Salamanca, E-37007 Salamanca, Spain
- Grupo de Fisioterapia, Recuperación Funcional y Ejercicio Terapéutico del Instituto de Investigación Biomédica de Salamanca (IBSAL), E-37007 Salamanca, Spain
- Correspondence:
| | - Roberto Mendez-Sánchez
- Facultad de Enfermería y Fisioterapia, Universidad de Salamanca, E-37007 Salamanca, Spain
- Grupo de Fisioterapia, Recuperación Funcional y Ejercicio Terapéutico del Instituto de Investigación Biomédica de Salamanca (IBSAL), E-37007 Salamanca, Spain
| | - Celestino Santos-Buelga
- Grupo de Investigación de Polifenoles (GIP-USAL), Universidad de Salamanca, E-37007 Salamanca, Spain
| | - Jose Ignacio Recio-Rodríguez
- Facultad de Enfermería y Fisioterapia, Universidad de Salamanca, E-37007 Salamanca, Spain
- Unidad de Investigación en Atención Primaria de Salamanca (APISAL), Instituto de Investigación Biomédica de Salamanca (IBSAL), Red de Investigación en Cronicidad, Atención Primaria y Promoción de la Salud (RICAPPS), E-37007 Salamanca, Spain
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