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Rivi V, Batabyal A, Lukowiak K. The multifaceted effects of flavonoids on neuroplasticity. Restor Neurol Neurosci 2024:RNN230150. [PMID: 38995810 DOI: 10.3233/rnn-230150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2024]
Abstract
There has been a significant increase in the incidence of multiple neurodegenerative and terminal diseases in the human population with life expectancy increasing in the current times. This highlights the urgent need for a more comprehensive understanding of how different aspects of lifestyle, in particular diet, may affect neural functioning and consequently cognitive performance as well as in enhancing overall health. Flavonoids, found in a variety of fruits, vegetables, and derived beverages, provide a new avenue of research that shows a promising influence on different aspects of brain function. However, despite the promising evidence, most bioactive compounds lack strong clinical research efficacy. In the current scoping review, we highlight the effects of Flavonoids on cognition and neural plasticity across vertebrates and invertebrates with special emphasis on the studies conducted in the pond snail, Lymnaea stagnalis, which has emerged to be a functionally dynamic model for studies on learning and memory. In conclusion, we suggest future research directions and discuss the social, cultural, and ethnic dependencies of bioactive compounds that influence how these compounds are used and accepted globally. Bridging the gap between preclinical and clinical studies about the effects of bioactive natural compounds on brain health will surely lead to lifestyle choices such as dietary Flavonoids being used complementarily rather than as replacements to classical drugs bringing about a healthier future.
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Affiliation(s)
- Veronica Rivi
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Anuradha Batabyal
- Department of Physical and Natural Sciences, FLAME University, India
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Ken Lukowiak
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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Moukham H, Lambiase A, Barone GD, Tripodi F, Coccetti P. Exploiting Natural Niches with Neuroprotective Properties: A Comprehensive Review. Nutrients 2024; 16:1298. [PMID: 38732545 PMCID: PMC11085272 DOI: 10.3390/nu16091298] [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: 04/03/2024] [Revised: 04/18/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Natural products from mushrooms, plants, microalgae, and cyanobacteria have been intensively explored and studied for their preventive or therapeutic potential. Among age-related pathologies, neurodegenerative diseases (such as Alzheimer's and Parkinson's diseases) represent a worldwide health and social problem. Since several pathological mechanisms are associated with neurodegeneration, promising strategies against neurodegenerative diseases are aimed to target multiple processes. These approaches usually avoid premature cell death and the loss of function of damaged neurons. This review focuses attention on the preventive and therapeutic potential of several compounds derived from natural sources, which could be exploited for their neuroprotective effect. Curcumin, resveratrol, ergothioneine, and phycocyanin are presented as examples of successful approaches, with a special focus on possible strategies to improve their delivery to the brain.
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Affiliation(s)
- Hind Moukham
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy; (H.M.); (A.L.); (P.C.)
| | - Alessia Lambiase
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy; (H.M.); (A.L.); (P.C.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | | | - Farida Tripodi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy; (H.M.); (A.L.); (P.C.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Paola Coccetti
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy; (H.M.); (A.L.); (P.C.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
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Zaa CA, Espitia C, Reyes-Barrera KL, An Z, Velasco-Velázquez MA. Neuroprotective Agents with Therapeutic Potential for COVID-19. Biomolecules 2023; 13:1585. [PMID: 38002267 PMCID: PMC10669388 DOI: 10.3390/biom13111585] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/26/2023] Open
Abstract
COVID-19 patients can exhibit a wide range of clinical manifestations affecting various organs and systems. Neurological symptoms have been reported in COVID-19 patients, both during the acute phase of the illness and in cases of long-term COVID. Moderate symptoms include ageusia, anosmia, altered mental status, and cognitive impairment, and in more severe cases can manifest as ischemic cerebrovascular disease and encephalitis. In this narrative review, we delve into the reported neurological symptoms associated with COVID-19, as well as the underlying mechanisms contributing to them. These mechanisms include direct damage to neurons, inflammation, oxidative stress, and protein misfolding. We further investigate the potential of small molecules from natural products to offer neuroprotection in models of neurodegenerative diseases. Through our analysis, we discovered that flavonoids, alkaloids, terpenoids, and other natural compounds exhibit neuroprotective effects by modulating signaling pathways known to be impacted by COVID-19. Some of these compounds also directly target SARS-CoV-2 viral replication. Therefore, molecules of natural origin show promise as potential agents to prevent or mitigate nervous system damage in COVID-19 patients. Further research and the evaluation of different stages of the disease are warranted to explore their potential benefits.
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Affiliation(s)
- César A. Zaa
- School of Biological Sciences, Universidad Nacional Mayor de San Marcos (UNMSM), Lima 15081, Peru;
| | - Clara Espitia
- Department of Immunology, Institute of Biomedical Research, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico; (C.E.); (K.L.R.-B.)
| | - Karen L. Reyes-Barrera
- Department of Immunology, Institute of Biomedical Research, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico; (C.E.); (K.L.R.-B.)
| | - Zhiqiang An
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, TX 77030, USA;
| | - Marco A. Velasco-Velázquez
- Texas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, TX 77030, USA;
- School of Medicine, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico
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4
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Pandria N, Athanasiou A, Styliadis C, Terzopoulos N, Mitsopoulos K, Paraskevopoulos E, Karagianni M, Pataka A, Kourtidou-Papadeli C, Makedou K, Iliadis S, Lymperaki E, Nimatoudis I, Argyropoulou-Pataka P, Bamidis PD. Does combined training of biofeedback and neurofeedback affect smoking status, behavior, and longitudinal brain plasticity? Front Behav Neurosci 2023; 17:1096122. [PMID: 36778131 PMCID: PMC9911884 DOI: 10.3389/fnbeh.2023.1096122] [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: 11/11/2022] [Accepted: 01/02/2023] [Indexed: 01/28/2023] Open
Abstract
Introduction: Investigations of biofeedback (BF) and neurofeedback (NF) training for nicotine addiction have been long documented to lead to positive gains in smoking status, behavior and to changes in brain activity. We aimed to: (a) evaluate a multi-visit combined BF/NF intervention as an alternative smoking cessation approach, (b) validate training-induced feedback learning, and (c) document effects on resting-state functional connectivity networks (rsFCN); considering gender and degree of nicotine dependence in a longitudinal design. Methods: We analyzed clinical, behavioral, and electrophysiological data from 17 smokers who completed five BF and 20 NF sessions and three evaluation stages. Possible neuroplastic effects were explored comparing whole-brain rsFCN by phase-lag index (PLI) for different brain rhythms. PLI connections with significant change across time were investigated according to different resting-state networks (RSNs). Results: Improvements in smoking status were observed as exhaled carbon monoxide levels, Total Oxidative Stress, and Fageström scores decreased while Vitamin E levels increased across time. BF/NF promoted gains in anxiety, self-esteem, and several aspects of cognitive performance. BF learning in temperature enhancement was observed within sessions. NF learning in theta/alpha ratio increase was achieved across baselines and within sessions. PLI network connections significantly changed across time mainly between or within visual, default mode and frontoparietal networks in theta and alpha rhythms, while beta band RSNs mostly changed significantly after BF sessions. Discussion: Combined BF/NF training positively affects the clinical and behavioral status of smokers, displays benefit in smoking harm reduction, plays a neuroprotective role, leads to learning effects and to positive reorganization of RSNs across time. Clinical Trial Registration: https://clinicaltrials.gov/ct2/show/NCT02991781.
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Affiliation(s)
- Niki Pandria
- Laboratory of Medical Physics and Digital Innovation, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Alkinoos Athanasiou
- Laboratory of Medical Physics and Digital Innovation, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Charis Styliadis
- Laboratory of Medical Physics and Digital Innovation, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Nikos Terzopoulos
- Laboratory of Medical Physics and Digital Innovation, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Konstantinos Mitsopoulos
- Laboratory of Medical Physics and Digital Innovation, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Evangelos Paraskevopoulos
- Laboratory of Medical Physics and Digital Innovation, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece,Department of Psychology, University of Cyprus, Nicosia, Cyprus
| | - Maria Karagianni
- Laboratory of Medical Physics and Digital Innovation, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Athanasia Pataka
- Pulmonary Department-Oncology Unit, “G. Papanikolaou” General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Kali Makedou
- Laboratory of Biochemistry, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stavros Iliadis
- Laboratory of Biochemistry, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Evgenia Lymperaki
- Department of Biomedical Sciences, International Hellenic University, Thessaloniki, Greece
| | - Ioannis Nimatoudis
- Third Department of Psychiatry, AHEPA University General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Panagiotis D. Bamidis
- Laboratory of Medical Physics and Digital Innovation, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece,*Correspondence: Panagiotis D. Bamidis
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Teleanu DM, Niculescu AG, Lungu II, Radu CI, Vladâcenco O, Roza E, Costăchescu B, Grumezescu AM, Teleanu RI. An Overview of Oxidative Stress, Neuroinflammation, and Neurodegenerative Diseases. Int J Mol Sci 2022; 23:ijms23115938. [PMID: 35682615 PMCID: PMC9180653 DOI: 10.3390/ijms23115938] [Citation(s) in RCA: 190] [Impact Index Per Article: 95.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 12/14/2022] Open
Abstract
Oxidative stress has been linked with a variety of diseases, being involved in the debut and/or progress of several neurodegenerative disorders. This review intends to summarize some of the findings that correlate the overproduction of reactive oxygen species with the pathophysiology of Alzheimer’s disease, Parkinson’s disease, Huntington’s disease, and amyotrophic lateral sclerosis. Oxidative stress was also noted to modify the inflammatory response. Even though oxidative stress and neuroinflammation are two totally different pathological events, they are linked and affect one another. Nonetheless, there are still several mechanisms that need to be understood regarding the onset and the progress of neurodegenerative diseases in order to develop efficient therapies. As antioxidants are a means to alter oxidative stress and slow down the symptoms of these neurodegenerative diseases, the most common antioxidants, enzymatic as well as non-enzymatic, have been mentioned in this paper as therapeutic options for the discussed disorders.
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Affiliation(s)
- Daniel Mihai Teleanu
- “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.M.T.); (O.V.); (E.R.); (R.I.T.)
| | - Adelina-Gabriela Niculescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (A.-G.N.); (I.I.L.)
| | - Iulia Ioana Lungu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (A.-G.N.); (I.I.L.)
- National Institute of Laser, Plasma and Radiation Physics (NILPRP), 077125 Magurele, Romania
| | - Crina Ioana Radu
- Department of Neurosurgery (I), Bucharest University Emergency Hospital, 050098 Bucharest, Romania;
| | - Oana Vladâcenco
- “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.M.T.); (O.V.); (E.R.); (R.I.T.)
- Department of Pediatric Neurology, “Dr. Victor Gomoiu” Children’s Hospital, 022102 Bucharest, Romania
| | - Eugenia Roza
- “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.M.T.); (O.V.); (E.R.); (R.I.T.)
- Department of Pediatric Neurology, “Dr. Victor Gomoiu” Children’s Hospital, 022102 Bucharest, Romania
| | - Bogdan Costăchescu
- “Gr. T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
- “Prof. Dr. N. Oblu” Emergency Clinical Hospital, 700309 Iasi, Romania
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 011061 Bucharest, Romania; (A.-G.N.); (I.I.L.)
- ICUB—Research Institute of University of Bucharest, University of Bucharest, 050657 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov No. 3, 050044 Bucharest, Romania
- Correspondence:
| | - Raluca Ioana Teleanu
- “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (D.M.T.); (O.V.); (E.R.); (R.I.T.)
- Department of Pediatric Neurology, “Dr. Victor Gomoiu” Children’s Hospital, 022102 Bucharest, Romania
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Sutkowy P, Woźniak A, Mila-Kierzenkowska C, Szewczyk-Golec K, Wesołowski R, Pawłowska M, Nuszkiewicz J. Physical Activity vs. Redox Balance in the Brain: Brain Health, Aging and Diseases. Antioxidants (Basel) 2021; 11:antiox11010095. [PMID: 35052600 PMCID: PMC8773223 DOI: 10.3390/antiox11010095] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/17/2021] [Accepted: 12/29/2021] [Indexed: 12/12/2022] Open
Abstract
It has been proven that physical exercise improves cognitive function and memory, has an analgesic and antidepressant effect, and delays the aging of the brain and the development of diseases, including neurodegenerative disorders. There are even attempts to use physical activity in the treatment of mental diseases. The course of most diseases is strictly associated with oxidative stress, which can be prevented or alleviated with regular exercise. It has been proven that physical exercise helps to maintain the oxidant–antioxidant balance. In this review, we present the current knowledge on redox balance in the organism and the consequences of its disruption, while focusing mainly on the brain. Furthermore, we discuss the impact of physical activity on aging and brain diseases, and present current recommendations and directions for further research in this area.
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Farag OM, Abd-Elsalam RM, Ogaly HA, Ali SE, El Badawy SA, Alsherbiny MA, Li CG, Ahmed KA. Metabolomic Profiling and Neuroprotective Effects of Purslane Seeds Extract Against Acrylamide Toxicity in Rat's Brain. Neurochem Res 2021; 46:819-842. [PMID: 33439429 DOI: 10.1007/s11064-020-03209-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/14/2020] [Accepted: 12/17/2020] [Indexed: 02/06/2023]
Abstract
AIM Acrylamide (ACR) is an environmental pollutant with well-demonstrated neurotoxic and neurodegenerative effects in both humans and experimental animals. The present study aimed to investigate the neuroprotective effect of Portulaca oleracea seeds extract (PSE) against ACR-induced neurotoxicity in rats and its possible underlying mechanisms. PSE was subjected to phytochemical investigation using ultra-high-performance liquid chromatography (UPLC) coupled with quantitative time of flight mass spectrometry (qTOF-MS). Multivariate, clustering and correlation data analyses were performed to assess the overall effects of PSE on ACR-challenged rats. Rats were divided into six groups including negative control, ACR-intoxicated group (10 mg/kg/day), PSE treated groups (200 and 400 mg/kg/day), and ACR + PSE treated groups (200 and 400 mg/kg/day, respectively). All treatments were given intragastrically for 60 days. PSE markedly ameliorated brain damage as evidenced by the decreased lactate dehydrogenase (LDL), increased acetylcholinesterase (AchE) activities, as well as the increased brain-derived neurotrophic factor (BDNF) that were altered by the toxic dose of ACR. In addition, PSE markedly attenuated ACR-induced histopathological alterations in the cerebrum, cerebellum, hippocampus and sciatic nerve and downregulated the ACR-inclined GFAP expression. PSE restored the oxidative status in the brain as indicated by glutathione (GSH), lipid peroxidation and increased total antioxidant capacity (TAC). PSE upregulated the mRNA expression of protein kinase B (AKT), which resulted in an upsurge in its downstream cAMP response element-binding protein (CREB)/BDNF mRNA expression in the brain tissue of ACR-intoxicated rats. All exerted PSE beneficial effects were dose-dependent, with the ACR-challenged group received PSE 400 mg/kg dose showed a close clustering to the negative control in both unsupervised principal component analysis (PCA) and supervised orthogonal partial least square discriminant analysis (OPLS-Da) alongside with the hierarchical clustering analysis (HCA). The current investigation confirmed the neuroprotective capacity of PSE against ACR-induced brain injury, and our findings indicate that AKT/CREB pathways and BDNF synthesis may play an important role in the PSE-mediated protective effects against ACR-triggered neurotoxicity.
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Affiliation(s)
- Ola M Farag
- General Organization for Veterinary Services, Giza, Egypt
| | - Reham M Abd-Elsalam
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Hanan A Ogaly
- Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
- Department of Biochemistry, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Sara E Ali
- Department of Physiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Shymaa A El Badawy
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Muhammed A Alsherbiny
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, 2145, Australia
| | - Chun Guang Li
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, 2145, Australia
| | - Kawkab A Ahmed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
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Iqubal A, Iqubal MK, Fazal SA, Pottoo FH, Haque SE. Nutraceuticals and their Derived Nano-formulations for the Prevention and Treatment of Alzheimer's disease. Curr Mol Pharmacol 2021; 15:23-50. [PMID: 33687906 DOI: 10.2174/1874467214666210309115605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/22/2020] [Accepted: 12/02/2020] [Indexed: 11/22/2022]
Abstract
Alzheimer's disease is one of the common chronic neurological disorders and associated with cognitive dysfunction, depression and progressive dementia. Presence of β-amyloid or senile plaques, hyper-phosphorylated tau proteins, neurofibrillary tangle, oxidative-nitrative stress, mitochondrial dysfunction, endoplasmic reticulum stress, neuroinflammation and derailed neurotransmitter status are the hallmark of AD. Currently, donepezil, memantine, rivastigmine and galantamine are approved by the FDA for symptomatic management. It is well-known that these approved drugs only exert symptomatic relief and possess poor patient-compliance. Additionally, various published evidence shows the neuroprotective potential of various nutraceuticals via their antioxidant, anti-inflammatory and anti-apoptotic effects in the preclinical and clinical studies. These nutraceuticals possess a significant neuroprotective potential and hence, can be a future pharmacotherapeutic for the management and treatment of AD. However, nutraceutical suffers from certain major limitations such as poor solubility, low bioavailability, low stability, fast hepatic-metabolism and larger particle size. These pharmacokinetic attributes restrict their entry into the brain via the blood-brain barrier. Therefore, to over such issues, various nanoformulation of nutraceuticals was developed, that allows their effective delivery into brain owning to reduced particle size, increased lipophilicity increased bioavailability and avoidance of fast hepatic metabolism. Thus, in this review, we have discussed the etiology of AD, focused on the pharmacotherapeutics of nutraceuticals with preclinical and clinical evidence, discussed pharmaceutical limitation and regulatory aspects of nutraceuticals to ensure safety and efficacy. We further explored the latitude of various nanoformulation of nutraceuticals as a novel approach to overcome the existing pharmaceutical limitation and for effective delivery into the brain.
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Affiliation(s)
- Ashif Iqubal
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi-110062. India
| | - Mohammad Kashif Iqubal
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi-110062. India
| | - Syed Abul Fazal
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi-110062. India
| | - Faheem Hyder Pottoo
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal, University, P.O.BOX 1982, Damman, 31441. Saudi Arabia
| | - Syed Ehtaishamul Haque
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi-110062. India
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Ammar A, Trabelsi K, Boukhris O, Bouaziz B, Müller P, Glenn JM, Chamari K, Müller N, Chtourou H, Driss T, Hökelmann A. Moderators of the Impact of (Poly)Phenols Interventions on Psychomotor Functions and BDNF: Insights from Subgroup Analysis and Meta-Regression. Nutrients 2020; 12:nu12092872. [PMID: 32961777 PMCID: PMC7551086 DOI: 10.3390/nu12092872] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/11/2020] [Accepted: 09/17/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Recent anti-aging interventions have shown contradictory impacts of (poly)phenols regarding the prevention of cognitive decline and maintenance of brain function. These discrepancies have been linked to between-study differences in supplementation protocols. This subgroup analysis and meta-regression aimed to (i) examine differential effects of moderator variables related to participant characteristics and supplementation protocols and (ii) identify practical recommendations to design effective (poly)phenol supplementation protocols for future anti-aging interventions. METHODS Multiple electronic databases (Web of Science; PubMed) searched for relevant intervention published from inception to July 2019. Using the PICOS criteria, a total of 4303 records were screened. Only high-quality studies (n = 15) were included in the final analyses. Random-effects meta-analysis was used, and we calculated standard differences in means (SDM), effect size (ES), and 95% confidence intervals (CI) for two sufficiently comparable items (i.e., psychomotor function and brain-derived neurotrophic factor (BDNF)). When significant heterogeneity was computed (I2 > 50%), a subgroup and meta-regression analysis were performed to examine the moderation effects of participant characteristics and supplementation protocols. RESULTS The reviewed studies support the beneficial effect of (poly)phenols-rich supplementation on psychomotor functions (ES = -0.677, p = 0.001) and brain plasticity (ES = 1.168, p = 0.028). Subgroup analysis revealed higher beneficial impacts of (poly)phenols (i) in younger populations compared to older (SDM = -0.89 vs. -0.47 for psychomotor performance, and 2.41 vs. 0.07 for BDNF, respectively), (ii) following an acute compared to chronic supplementation (SDM = -1.02 vs. -0.43 for psychomotor performance), and (iii) using a phenolic compound with medium compared to low bioavailability rates (SDM = -0.76 vs. -0.68 for psychomotor performance and 3.57 vs. 0.07 for DBNF, respectively). Meta-regressions revealed greater improvement in BDNF levels with lower percentages of female participants (Q = 40.15, df = 6, p < 0.001) and a skewed scatter plot toward a greater impact using higher (poly)phenols doses. CONCLUSION This review suggests that age group, gender, the used phenolic compounds, their human bioavailability rate, and the supplementation dose as the primary moderator variables relating to the beneficial effects of (poly)phenol consumption on cognitive and brain function in humans. Therefore, it seems more advantageous to start anti-aging (poly)phenol interventions in adults earlier in life using medium (≈500 mg) to high doses (≈1000 mg) of phenolic compounds, with at least medium bioavailability rate (≥9%).
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Affiliation(s)
- Achraf Ammar
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
- Correspondence: ; Tel.: +49-391-67-57395
| | - Khaled Trabelsi
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.); (H.C.)
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia
| | - Omar Boukhris
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.); (H.C.)
- Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, Tunis 1003, Tunisia
| | - Bassem Bouaziz
- Higher Institute of Computer Science and Multimedia of Sfax, University of Sfax, Sfax 3000, Tunisia;
| | - Patrick Müller
- German Center for Neurodegenerative Diseases (DZNE), 39104 Magdeburg, Germany; (P.M.); (N.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University, 39104 Magdeburg, Germany
| | - Jordan M. Glenn
- Department of Health, Exercise Science Research Center, Human Performance and Recreation, University of Arkansas, Fayetteville, AR 72701, USA;
- Neurotrack Technologies, 399 Bradford St, Redwood City, CA 94063, USA
| | - Karim Chamari
- ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha PoBox 29222, Qatar;
- Laboratory “Sport Performance Optimization”, (CNMSS), ISSEP Ksar-Said, Manouba University, Manouba 1004, Tunisia
| | - Notger Müller
- German Center for Neurodegenerative Diseases (DZNE), 39104 Magdeburg, Germany; (P.M.); (N.M.)
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.); (H.C.)
- Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, Tunis 1003, Tunisia
| | - Tarak Driss
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2-2APS), UFR STAPS, UPL, Paris Nanterre University, 92000 Nanterre, France;
| | - Anita Hökelmann
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
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Zawirska-Wojtasiak R, Fedoruk-Wyszomirska A, Piechowska P, Mildner-Szkudlarz S, Bajerska J, Wojtowicz E, Przygoński K, Gurda D, Kubicka W, Wyszko E. β-Carbolines in Experiments on Laboratory Animals. Int J Mol Sci 2020; 21:E5245. [PMID: 32722000 PMCID: PMC7432475 DOI: 10.3390/ijms21155245] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 12/21/2022] Open
Abstract
Some studies have ascribed a protective effect against neurodegenerative diseases to the β-carbolines harman (H) and norharman (NH), which occur mostly in coffee and coffee substitutes. We determined the concentrations of β-carbolines and undesirable compounds (such as acrylamide) in roasted coffee substitute ingredients and found that chicory coffee was optimal. Two in vivo experiments were conducted with seventeen-month-old male Sprague Dawley rats fed a diet with the addition of pure carboline standards in the first stage, and chicory in the second. We observed an increase in the level of H and NH in blood plasma, as well as higher activity of animals in the battery behavioral test, particularly in the second stage. The results of in vitro studies-particularly the level of the expression in brain tissue of genes associated with aging processes and neurodegenerative diseases-clearly show the benefits of a diet rich in β-carbolines.
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Affiliation(s)
- Renata Zawirska-Wojtasiak
- Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland; (P.P.); (S.M.-S.); (J.B.)
| | - Agnieszka Fedoruk-Wyszomirska
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-794 Poznań, Poland; (A.F.-W.); (D.G.); (W.K.)
| | - Paulina Piechowska
- Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland; (P.P.); (S.M.-S.); (J.B.)
| | - Sylwia Mildner-Szkudlarz
- Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland; (P.P.); (S.M.-S.); (J.B.)
| | - Joanna Bajerska
- Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland; (P.P.); (S.M.-S.); (J.B.)
| | - Elżbieta Wojtowicz
- Department of Food Concentrates and Starch Products, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology, Starołęcka 40, 61-361 Poznań, Poland; (E.W.); (K.P.)
| | - Krzysztof Przygoński
- Department of Food Concentrates and Starch Products, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology, Starołęcka 40, 61-361 Poznań, Poland; (E.W.); (K.P.)
| | - Dorota Gurda
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-794 Poznań, Poland; (A.F.-W.); (D.G.); (W.K.)
| | - Wiktoria Kubicka
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-794 Poznań, Poland; (A.F.-W.); (D.G.); (W.K.)
| | - Eliza Wyszko
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-794 Poznań, Poland; (A.F.-W.); (D.G.); (W.K.)
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11
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Abstract
PURPOSE OF REVIEW This review summarises the most recent evidence regarding the effects of diet in preventing and reducing age-related cognitive decline and neurodegenerative diseases. RECENT FINDINGS Recent evidence indicates that nutraceuticals and whole diet approaches may protect against the development of age-related cognitive decline and pathological neurodegeneration. The neuroprotective effects are diverse depending on the nutrient employed and may involve a reduction of neuroinflammation, an activation of the endogenous antioxidant defence system and a modulation of the gut microbiota structure and function. SUMMARY This review summarises the existing evidence in favour of diet as a viable alternative approach to directly impact cognitive decline and neurodegenerative diseases. The single nutrient (polyphenols, B vitamins, long-chain polyunsaturated fatty acids) versus whole diet approach (Mediterranean diet, Dietary Approaches to Stop Hypertension, MIND, Nordic, ketogenic) is presented and discussed. Potential mechanisms of action underlying the beneficial effects of these diets are also described. Implementation of large-scale preventive interventions based on dietary patterns identified as being beneficial to brain health should be a research and public health priority, ideally in conjunction with other health-promoting lifestyle factors.
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Ammar A, Trabelsi K, Müller P, Bouaziz B, Boukhris O, Glenn JM, Bott N, Driss T, Chtourou H, Müller N, Hökelmann A. The Effect of (Poly)phenol-Rich Interventions on Cognitive Functions and Neuroprotective Measures in Healthy Aging Adults: A Systematic Review and Meta-Analysis. J Clin Med 2020; 9:jcm9030835. [PMID: 32204500 PMCID: PMC7141326 DOI: 10.3390/jcm9030835] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/10/2020] [Accepted: 03/13/2020] [Indexed: 12/12/2022] Open
Abstract
Context: As the food industry is continually involved in the development of new attractive alternative therapeutic agents, the evaluation of the beneficial impact of (poly)phenols on cognitive and brain function during aging has gained increasing interest. Objective: This systematic review and meta-analysis aimed to evaluate the acute and chronic effects of (poly)phenol-rich diet supplementation on cognitive function and brain health in aging adults. Data Sources: PubMed and Web of Science databases were searched for relevant randomized placebo-controlled trials (RCTs) published from inception to July 2019. Study Selection: Two researchers independently screened 4303 records, using the PICOS criteria: Participants were aging adults; Intervention was based on acute and/or chronic (poly)phenols-rich supplementation; Comparator was any comparator; Outcomes included cognitive function and neuroprotective measures; and Study design was RCTs. A third researcher was consulted when discrepancies arose. Fifteen high-quality (mean PEDro score = 8.8 ± 0.56) RCTs (total participants: 918 healthy older adults) were included in the final sample. Data Extraction: Information on study design, employed treatment, characteristics of participants, outcomes, and the correspondent assessing methods were extracted. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. Data Analysis and Results: A random-effects meta-analysis was used to pool estimates across studies. Effect size (ES) and its 95% confidence interval (CI) was calculated. Pooled results yielded a trivial ES (−0.2 to 0.03) for brain-derived neurotrophic factor and neuroinflammatory parameters and small (0.36) to moderate (0.82) ES for executive functions. Conclusion: This meta-analysis failed to provide evidence regarding the neuroprotective and anti-inflammatory effect of (poly)phenols supplementation in aging adults. However, findings from individual studies, included in this systematic review, suggest polyphenol-rich supplementation may improve some cognitive and brain functions in older adults. The beneficial effect of polyphenols seems to depend on ingested dose and bioavailability. Results suggest at least an intermediate dose (≥500 mg), and intermediate (≈9%) to high (43%) bioavailability rates are needed to cross the brain blood barrier and to exert a significant effect on cognitive health.
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Affiliation(s)
- Achraf Ammar
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
- Correspondence: ; Tel.: +49-(0)-391-67-57395
| | - Khaled Trabelsi
- UR15JS01: Education, Motricity, Sport and Health (EM2S), High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.)
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia
| | - Patrick Müller
- German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany; (P.M.); (N.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University, 39104 Magdeburg, Germany
| | - Bassem Bouaziz
- Higher Institute of Computer Science and Multimedia of Sfax, University of Sfax, Sfax 3000, Tunisia;
| | - Omar Boukhris
- UR15JS01: Education, Motricity, Sport and Health (EM2S), High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.)
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia
| | - Jordan M Glenn
- Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR 72701, USA;
- Neurotrack Technologies, 399 Bradford St, Redwood City, CA 94063, USA;
| | - Nick Bott
- Neurotrack Technologies, 399 Bradford St, Redwood City, CA 94063, USA;
- Clinical Excellence Research Center, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Tarak Driss
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2-2APS), UFR STAPS, UPL, Paris Nanterre University, 92000 Nanterre, France;
| | - Hamdi Chtourou
- Physical Activity, Sport and Health, UR18JS01, National Observatory of Sport, Tunis 1003, Tunisia;
| | - Notger Müller
- German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany; (P.M.); (N.M.)
| | - Anita Hökelmann
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
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13
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Safety and Neuroprotective Efficacy of Palm Oil and Tocotrienol-Rich Fraction from Palm Oil: A Systematic Review. Nutrients 2020; 12:nu12020521. [PMID: 32085610 PMCID: PMC7071496 DOI: 10.3390/nu12020521] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 01/02/2023] Open
Abstract
Background: Several natural products have been reported to elicit beneficial effects against neurodegenerative disorders due to their vitamin E contents. However, the neuroprotective efficacy of palm oil or its tocotrienol-rich fraction (TRF) from the pre-clinical cell and animal studies have not been systematically reviewed. Methods: The protocol for this systematic review was registered in “PROSPERO” (CRD42019150408). This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. The Medical Subject Heading (MeSH) descriptors of PubMed with Boolean operators were used to construct keywords, including (“Palm Oil”[Mesh]) AND “Nervous System”[Mesh], (“Palm Oil”[Mesh]) AND “Neurodegenerative Diseases”[Mesh], (“Palm Oil”[Mesh]) AND “Brain”[Mesh], and (“Palm Oil”[Mesh]) AND “Cognition”[Mesh], to retrieve the pertinent records from PubMed, Scopus, Web of Science and ScienceDirect from 1990 to 2019, while bibliographies, ProQuest and Google Scholar were searched to ensure a comprehensive identification of relevant articles. Two independent investigators were involved at every stage of the systematic review, while discrepancies were resolved through discussion with a third investigator. Results: All of the 18 included studies in this review (10 animal and eight cell studies) showed that palm oil and TRF enhanced the cognitive performance of healthy animals. In diabetes-induced rats, TRF and α-tocotrienol enhanced cognitive function and exerted antioxidant, anti-apoptotic and anti-inflammatory activities, while in a transgenic Alzheimer’s disease (AD) animal model, TRF enhanced the cognitive function and reduced the deposition of β-amyloid by altering the expression of several genes related to AD and neuroprotection. In cell studies, simultaneous treatment with α-tocotrienols and neurotoxins improved the redox status in neuronal cells better than γ- and δ-tocotrienols. Both pre-treatment and post-treatment with α-tocotrienol relative to oxidative insults were able to enhance the survival of neuronal cells via increased antioxidant responses. Conclusions: Palm oil and its TRF enhanced the cognitive functions of healthy animals, while TRF and α-tocotrienol enhanced the cognitive performance with attenuation of oxidative stress, neuroinflammation and apoptosis in diabetes-induced or transgenic AD animal models. In cell studies, TRF and α-tocotrienol exerted prophylactic neuroprotective effects, while α-tocotrienol exerted therapeutic neuroprotective effects that were superior to those of γ- and δ-tocotrienol isomers.
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14
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Carrera I, Martínez O, Cacabelos R. Neuroprotection with Natural Antioxidants and Nutraceuticals in the Context of Brain Cell Degeneration: The Epigenetic Connection. Curr Top Med Chem 2020; 19:2999-3011. [PMID: 31789133 DOI: 10.2174/1568026619666191202155738] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/24/2019] [Accepted: 10/26/2019] [Indexed: 12/26/2022]
Abstract
Bioactive antioxidant agents present in selected plants are known to provide the first line of biological defense against oxidative stress. In particular, soluble vitamin C, E, carotenoids and phenolic compounds have demonstrated crucial biological effects in cells against oxidative damage, preventing prevalent chronic diseases, such as diabetes, cancer and cardiovascular disease. The reported wide range of effects that included anti-aging, anti-atherosclerosis, anti-inflammatory and anticancer activity were studied against degenerative pathologies of the brain. Vitamins and different phytochemicals are important epigenetic modifiers that prevent neurodegeneration. In order to explore the potential antioxidant sources in functional foods and nutraceuticals against neurodegeneration, the present paper aims to show a comprehensive assessment of antioxidant activity at chemical and cellular levels. The effects of the different bioactive compounds available and their antioxidant activity through an epigenetic point of view are also discussed.
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Affiliation(s)
- Iván Carrera
- EuroEspes Biomedical Research Center, International Center of Neuroscience and Genomic Medicine, Corunna 15166,Spain
| | - Olaia Martínez
- EuroEspes Biomedical Research Center, International Center of Neuroscience and Genomic Medicine, Corunna 15166,Spain
| | - Ramón Cacabelos
- EuroEspes Biomedical Research Center, International Center of Neuroscience and Genomic Medicine, Corunna 15166,Spain
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15
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Teleanu RI, Chircov C, Grumezescu AM, Volceanov A, Teleanu DM. Antioxidant Therapies for Neuroprotection-A Review. J Clin Med 2019; 8:E1659. [PMID: 31614572 PMCID: PMC6832623 DOI: 10.3390/jcm8101659] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/08/2019] [Accepted: 10/10/2019] [Indexed: 12/21/2022] Open
Abstract
Although moderate concentrations of reactive oxygen species (ROS) and reactive nitrogen species (RNS) are crucial for various physiological processes within the human body, their overproduction leads to oxidative stress, defined as the imbalance between the production and accumulation of ROS and the ability of the body to neutralize and eliminate them. In the brain, oxidative stress exhibits significant effects, due to its increased metabolical activity and limited cellular regeneration. Thus, oxidative stress is a major factor in the progressive loss of neurons structures and functions, leading to the development of severe neurodegenerative disorders. In this context, recent years have witnessed tremendous advancements in the field of antioxidant therapies, with a special emphasis for neuroprotection. The aim of this paper is to provide an overview of the oxidative stress and antioxidant defense mechanisms and to present the most recent studies on antioxidant therapies for neuroprotection.
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Affiliation(s)
- Raluca Ioana Teleanu
- "Victor Gomoiu" Clinical Children's Hospital, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
| | - Cristina Chircov
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
| | - Adrian Volceanov
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
| | - Daniel Mihai Teleanu
- Emergency University Hospital, "Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.
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