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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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Chandrasekaran V, Hediyal TA, Anand N, Kendaganna PH, Gorantla VR, Mahalakshmi AM, Ghanekar RK, Yang J, Sakharkar MK, Chidambaram SB. Polyphenols, Autophagy and Neurodegenerative Diseases: A Review. Biomolecules 2023; 13:1196. [PMID: 37627261 PMCID: PMC10452370 DOI: 10.3390/biom13081196] [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: 07/05/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
Polyphenols are secondary metabolites from plant origin and are shown to possess a wide range of therapeutic benefits. They are also reported as regulators of autophagy, inflammation and neurodegeneration. The autophagy pathway is vital in degrading outdated organelles, proteins and other cellular wastes. The dysregulation of autophagy causes proteinopathies, mitochondrial dysfunction and neuroinflammation thereby contributing to neurodegeneration. Evidence reveals that polyphenols improve autophagy by clearing misfolded proteins in the neurons, suppress neuroinflammation and oxidative stress and also protect from neurodegeneration. This review is an attempt to summarize the mechanism of action of polyphenols in modulating autophagy and their involvement in pathways such as mTOR, AMPK, SIRT-1 and ERK. It is evident that polyphenols cause an increase in the levels of autophagic proteins such as beclin-1, microtubule-associated protein light chain (LC3 I and II), sirtuin 1 (SIRT1), etc. Although it is apparent that polyphenols regulate autophagy, the exact interaction of polyphenols with autophagy markers is not known. These data require further research and will be beneficial in supporting polyphenol supplementation as a potential alternative treatment for regulating autophagy in neurodegenerative diseases.
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Affiliation(s)
- Vichitra Chandrasekaran
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, India; (V.C.); (T.A.H.); (A.M.M.)
- Center for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education and Research, Mysuru 570015, India;
| | - Tousif Ahmed Hediyal
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, India; (V.C.); (T.A.H.); (A.M.M.)
- Center for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education and Research, Mysuru 570015, India;
| | - Nikhilesh Anand
- Department of Pharmacology, College of Medicine, American University of Antigua, Saint John’s P.O. Box W-1451, Antigua and Barbuda;
| | - Pavan Heggadadevanakote Kendaganna
- Center for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education and Research, Mysuru 570015, India;
| | | | - Arehally M. Mahalakshmi
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, India; (V.C.); (T.A.H.); (A.M.M.)
- Center for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education and Research, Mysuru 570015, India;
| | - Ruchika Kaul Ghanekar
- Symbiosis Centre for Research and Innovation (SCRI), Symbiosis International (Deemed University), Pune 412115, India;
| | - Jian Yang
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada;
| | - Meena Kishore Sakharkar
- Drug Discovery and Development Research Group, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada;
| | - Saravana Babu Chidambaram
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Mysuru 570015, India; (V.C.); (T.A.H.); (A.M.M.)
- Center for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education and Research, Mysuru 570015, India;
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Hawash ZAS, Yassien EM, Alotaibi BS, El-Moslemany AM, Shukry M. Assessment of Anti-Alzheimer Pursuit of Jambolan Fruit Extract and/or Choline against AlCl 3 Toxicity in Rats. TOXICS 2023; 11:509. [PMID: 37368609 DOI: 10.3390/toxics11060509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/30/2023] [Accepted: 06/03/2023] [Indexed: 06/29/2023]
Abstract
Jambolan fruit extract and choline were investigated for Aluminum tri chloride (AlCl3)-induced Alzheimer's disease in rats. Thirty-six male "Sprague Dawley" rats weighing (150 ± 10 g) were allocated into six groups; the first group was fed a baseline diet and served as a negative control. Alzheimer's disease (AD) was induced in Group 2 rats by oral administration of AlCl3 (17 mg/kg body weight) dissolved in distilled water (served as a positive control). Rats in Group 3 were orally supplemented concomitantly with both 500 mg/kg BW of an ethanolic extract of jambolan fruit once daily for 28 days and AlCl3 (17 mg/kg body weight). Group 4: Rivastigmine (RIVA) aqueous infusion (0.3 mg/kg BW/day) was given orally to rats as a reference drug concomitantly with oral supplementation of AlCl3 (17 mg/kg body weight) for 28 days. Group 5 rats were orally treated with choline (1.1 g/kg) concomitantly with oral supplementation of AlCl3 (17 mg/kg body weight). Group 6 was given 500 mg/kg of jambolan fruit ethanolic extract and 1.1 g/kg of choline orally to test for additive effects concurrently with oral supplementation of AlCl3 (17 mg/kg bw) for 28 days. Body weight gain, feed intake, feed efficiency ratio, and relative brain, liver, kidney, and spleen weight were calculated after the trial. Brain tissue assessment was analyzed for antioxidant/oxidant markers, biochemical analysis in blood serum, a phenolic compound in Jambolan fruits extracted by high-performance liquid chromatography (HPLC), and histopathology of the brain. The results showed that Jambolan fruit extract and choline chloride improved brain functions, histopathology, and antioxidant enzyme activity compared with the positive group. In conclusion, administering jambolan fruit extract and choline can lower the toxic impacts of aluminum chloride on the brain.
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Affiliation(s)
- Zeinab Abdel Salam Hawash
- Nutrition and Food Science Department, Faculty of Home Economic, Al-Azhar University, Tanta 31732, Egypt
| | - Ensaf M Yassien
- Nutrition and Food Science Department, Faculty of Home Economic, Al-Azhar University, Tanta 31732, Egypt
| | - Badriyah S Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Amira M El-Moslemany
- Nutrition and Food Science Department, Faculty of Home Economic, Al-Azhar University, Tanta 31732, Egypt
| | - Mustafa Shukry
- Physiology Department, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
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Abdelsalam SA, Renu K, Zahra HA, Abdallah BM, Ali EM, Veeraraghavan VP, Sivalingam K, Ronsard L, Ammar RB, Vidya DS, Karuppaiya P, Al-Ramadan SY, Rajendran P. Polyphenols Mediate Neuroprotection in Cerebral Ischemic Stroke-An Update. Nutrients 2023; 15:nu15051107. [PMID: 36904106 PMCID: PMC10005012 DOI: 10.3390/nu15051107] [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: 01/23/2023] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
Stroke is one of the main causes of mortality and disability, and it is due to be included in monetary implications on wellbeing frameworks around the world. Ischemic stroke is caused by interference in cerebral blood flow, leading to a deficit in the supply of oxygen to the affected region. It accounts for nearly 80-85% of all cases of stroke. Oxidative stress has a significant impact on the pathophysiologic cascade in brain damage leading to stroke. In the acute phase, oxidative stress mediates severe toxicity, and it initiates and contributes to late-stage apoptosis and inflammation. Oxidative stress conditions occur when the antioxidant defense in the body is unable to counteract the production and aggregation of reactive oxygen species (ROS). The previous literature has shown that phytochemicals and other natural products not only scavenge oxygen free radicals but also improve the expressions of cellular antioxidant enzymes and molecules. Consequently, these products protect against ROS-mediated cellular injury. This review aims to give an overview of the most relevant data reported in the literature on polyphenolic compounds, namely, gallic acid, resveratrol, quercetin, kaempferol, mangiferin, epigallocatechin, and pinocembrin, in terms of their antioxidant effects and potential protective activity against ischemic stroke.
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Affiliation(s)
- Salaheldin Abdelraouf Abdelsalam
- Department of Biological Sciences, College of Science, King Faisal University, Chennai 31982, Saudi Arabia
- Department of Zoology, Faculty of Science, Assiut University, Assiut 71515, Egypt
| | - Kaviyarasi Renu
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College & Hospitals, Saveetha University, Chennai 600077, India
| | - Hamad Abu Zahra
- Department of Biological Sciences, College of Science, King Faisal University, Chennai 31982, Saudi Arabia
| | - Basem M. Abdallah
- Department of Biological Sciences, College of Science, King Faisal University, Chennai 31982, Saudi Arabia
| | - Enas M. Ali
- Department of Biological Sciences, College of Science, King Faisal University, Chennai 31982, Saudi Arabia
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Cairo 12613, Egypt
| | - Vishnu Priya Veeraraghavan
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College & Hospitals, Saveetha University, Chennai 600077, India
| | - Kalaiselvi Sivalingam
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Larance Ronsard
- The Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Rebai Ben Ammar
- Department of Biological Sciences, College of Science, King Faisal University, Chennai 31982, Saudi Arabia
- Laboratory of Aromatic and Medicinal Plants, Center of Biotechnology of Borj-Cedria, Technopole of Borj-Cedria, P.O. Box 901, Hammam-Lif 2050, Tunisia
| | - Devanathadesikan Seshadri Vidya
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdul Aziz University, Al-Kharj 11942, Saudi Arabia
| | - Palaniyandi Karuppaiya
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530004, China
| | - S. Y. Al-Ramadan
- Department of Anatomy, College of Veterinary Medicine, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Peramaiyan Rajendran
- Department of Biological Sciences, College of Science, King Faisal University, Chennai 31982, Saudi Arabia
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College & Hospitals, Saveetha University, Chennai 600077, India
- Correspondence: ; Tel.: +966-0135899543
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Elbakry MMM, Mansour SZ, Helal H, Ahmed ESA. Nattokinase attenuates bisphenol A or gamma irradiation-mediated hepatic and neural toxicity by activation of Nrf2 and suppression of inflammatory mediators in rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:75086-75100. [PMID: 35648353 PMCID: PMC9550699 DOI: 10.1007/s11356-022-21126-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/23/2022] [Indexed: 05/05/2023]
Abstract
Nattokinase (NK), a protease enzyme produced by Bacillus subtilis, has various biological effects such as lipid-lowering activity, antihypertensive, antiplatelet/anticoagulant, and neuroprotective effects. Exposure to environmental toxicants such as bisphenol A (BPA) or γ-radiation (IR) causes multi-organ toxicity through several mechanisms such as impairment of oxidative status, signaling pathways, and hepatic and neuronal functions as well as disruption of the inflammatory responses. Therefore, this study is designed to evaluate the ameliorative effect of NK against BPA- or IR-induced liver and brain damage in rats. Serum ammonia level and liver function tests were measured in addition to brain oxidative stress markers, amyloid-beta, tau protein, and neuroinflammatory mediators. Moreover, relative quantification of brain nuclear factor-erythroid 2-related factor-2 (Nrf2)/heme oxygenase-1 (HO-1) genes, as well as apoptotic markers in brain tissue, was carried out in addition to histopathological examination. The results showed that NK improved liver functions, impaired oxidative status, the cholinergic deficits, and minified the misfolded proteins aggregates. Furthermore, NK alleviated the neuroinflammation via modulating NF-κB/Nrf2/HO-1 pathway and glial cell activation in addition to their antiapoptotic effect. Collectively, the current results revealed the protective effect of NK against hepatic and neurotoxicity derived from BPA or IR.
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Affiliation(s)
- Mustafa M M Elbakry
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Somaya Z Mansour
- Radiation Biology Research, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Nasr City, Cairo, 11787, Egypt
| | - Hamed Helal
- Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Esraa S A Ahmed
- Radiation Biology Research, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Nasr City, Cairo, 11787, Egypt.
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Nantacharoen W, Baek SJ, Plaingam W, Charoenkiatkul S, Tencomnao T, Sukprasansap M. Cleistocalyx nervosum var. paniala Berry Promotes Antioxidant Response and Suppresses Glutamate-Induced Cell Death via SIRT1/Nrf2 Survival Pathway in Hippocampal HT22 Neuronal Cells. Molecules 2022; 27:molecules27185813. [PMID: 36144547 PMCID: PMC9503107 DOI: 10.3390/molecules27185813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/01/2022] [Accepted: 09/05/2022] [Indexed: 11/22/2022] Open
Abstract
Excessive glutamate neurotransmitters result in oxidative neurotoxicity, similar to neurodegeneration. An indigenous berry of Thailand, Cleistocalyx nervosum var. paniala (CNP), has been recognized for its robust antioxidants. We investigated the effects and mechanisms of CNP fruit extracts on antioxidant-related survival pathways against glutamate-induced neurotoxicity. The extract showed strong antioxidant capability and had high total phenolic and flavonoid contents, particularly resveratrol. Next, the protective effects of the CNP extract or resveratrol on the glutamate-induced neurotoxicity were examined in HT22 hippocampal cells. Our investigation showed that the pretreatment of cells with the CNP extract or resveratrol attenuated glutamate-induced neuronal death via suppression of apoptosis cascade by inhibiting the levels of cleaved- and pro-caspase-3 proteins. The CNP extract and resveratrol suppressed the intracellular ROS by increasing the mRNA expression level of antioxidant enzymes (SODs, GPx1, and CAT). We found that this extract and resveratrol significantly increased SIRT1 expression as a survival-related protein. Moreover, they also promoted the activity of the Nrf2 protein translocation into the nucleus and could bind to the promoter containing the antioxidant response element, inducing the expression of the downstream GPx1-antioxidant protein. Our data illustrate that the CNP extract and resveratrol inhibit apoptotic neuronal death via glutamate-induced oxidative neurotoxicity in HT22 cells through the activation of the SIRT1/Nrf2 survival mechanism.
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Affiliation(s)
- Wanchanok Nantacharoen
- Master Program in Clinical Biochemistry and Molecular Medicine, Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Seung Joon Baek
- Laboratory of Signal Transduction, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Gwanak-gu, Seoul 08826, Korea
| | - Waluga Plaingam
- College of Oriental Medicine, Rangsit University, Pathum Thani 12000, Thailand
| | - Somsri Charoenkiatkul
- Institute of Nutrition, Salaya Campus, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Tewin Tencomnao
- Natural Products for Neuroprotection and Anti-Ageing (Neur-Age Natura) Research Unit, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: (T.T.); (M.S.); Tel.: +66-22181533 (T.T.); +66-28002380 (M.S.)
| | - Monruedee Sukprasansap
- Food Toxicology Unit, Institute of Nutrition, Salaya Campus, Mahidol University, Nakhon Pathom 73170, Thailand
- Correspondence: (T.T.); (M.S.); Tel.: +66-22181533 (T.T.); +66-28002380 (M.S.)
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Elmaidomy AH, Abdelmohsen UR, Alsenani F, Aly HF, Eldin Shams SG, Younis EA, Ahmed KA, Sayed AM, Owis AI, Afifi N, El Amir D. The anti-Alzheimer potential of Tamarindus indica: an in vivo investigation supported by in vitro and in silico approaches. RSC Adv 2022; 12:11769-11785. [PMID: 35481086 PMCID: PMC9015909 DOI: 10.1039/d2ra01340a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/30/2022] [Indexed: 01/06/2023] Open
Abstract
Tamarindus indica Linn. (Tamarind, F. Fabaceae) is one of the most widely consumed fruits in the world. A crude extract and different fractions of T. indica (using n-hexane, dichloromethane, ethyl acetate, and n-butanol) were evaluated in vitro with respect to their DPPH scavenging and AchE inhibition activities. The results showed that the dichloromethane and ethyl acetate fractions showed the highest antioxidant activities, with 84.78 and 86.96% DPPH scavenging at 0.10 μg mL-1. The n-hexane, dichloromethane, and ethyl acetate fractions inhibited AchE activity in a dose-dependent manner, and the n-hexane fraction showed the highest inhibition at 20 μg mL-1. The results were confirmed by using n-hexane, dichloromethane, and ethyl acetate fractions in vivo to regress the neurodegenerative features of Alzheimer's dementia in an aluminum-intoxicated rat model. Phytochemical investigations of those three fractions afforded two new diphenyl ether derivative compounds 1-2, along with five known ones (3-7). The structures of the isolated compounds were confirmed via 1D and 2D NMR and HRESIMS analyses. The isolated compounds were subjected to extensive in silico-based investigations to putatively highlight the most probable compounds responsible for the anti-Alzheimer activity of T. indica. Inverse docking studies followed by molecular dynamics simulation (MDS) and binding free energy (ΔG) investigations suggested that both compounds 1 and 2 could be promising AchE inhibitors. The results presented in this study may provide potential dietary supplements for the management of Alzheimer's disease.
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Affiliation(s)
- Abeer H Elmaidomy
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University Beni-Suef 62514 Egypt
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University Minia 61519 Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University 7 Universities Zone New Minia 61111 Egypt
| | - Faisal Alsenani
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al-Qura University Makkah 21955 Saudi Arabia
| | - Hanan F Aly
- Therapeutic Chemistry Department, National Research Centre (NRC) El-Bouth St. P.O. 12622 Cairo Egypt
| | - Shams Gamal Eldin Shams
- Therapeutic Chemistry Department, National Research Centre (NRC) El-Bouth St. P.O. 12622 Cairo Egypt
| | - Eman A Younis
- Therapeutic Chemistry Department, National Research Centre (NRC) El-Bouth St. P.O. 12622 Cairo Egypt
| | - Kawkab A Ahmed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University Giza 12211 Egypt
| | - Ahmed M Sayed
- Department of Pharmacognosy, Faculty of Pharmacy, Nahda University Beni-Suef 62513 Egypt
| | - Asmaa I Owis
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University Beni-Suef 62514 Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Heliopolis University for Sustainable Development Cairo Egypt
| | - Naglaa Afifi
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University Beni-Suef 62514 Egypt
| | - Dalia El Amir
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University Beni-Suef 62514 Egypt
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Yeh KC, Hung CF, Lee HL, Hsieh TY, Wang SJ. Soybean Meal Extract Preserves Memory Ability by Increasing Presynaptic Function and Modulating Gut Microbiota in Rats. Mol Neurobiol 2022; 59:1649-1664. [PMID: 35001354 DOI: 10.1007/s12035-021-02669-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/25/2021] [Indexed: 12/12/2022]
Abstract
Age-related degenerative brain diseases frequently manifest as memory deficits. Dietary interventions or nutraceuticals may provide efficacious treatments through prevention and cure. Soybean meal, a byproduct of soy oil refining, has health benefits, but its effect on memory function is unknown. Therefore, we evaluated the effect of the oral administration of soybean meal extract (SME) for 2 weeks on memory function using the Morris water maze (MWM) test in healthy rats and investigated the possible underlying mechanisms. First, analysis of the composition revealed that SME is rich in isoflavones; SME did not exhibit hepatotoxicity or renal toxicity at the different doses tested. The MWM results revealed that the escape latency and movement distance of rats were significantly shorter in the SME group than in the control group, indicating that SME can help in memory preservation. In addition, SME increased the levels of presynaptic proteins such as synaptophysin, synaptobrevin, synaptotagmin, syntaxin, synapsin I, and 25-kDa synaptosome-associated protein as well as protein kinases and their phosphorylated expression, including extracellular signal-regulated kinases 1 and 2 (ERK1/2), protein kinase C (PKC), and Ca2+/calmodulin-dependent protein kinase II (CaMKII) in the hippocampal nerve terminals (synaptosomes). Transmission electron microscopy also indicated that SME increased the number of synaptic vesicles in hippocampal synaptosomes. Furthermore, SME rats exhibited altered microbiota composition compared with control rats. Therefore, our data suggest that SME can increase presynaptic function and modulate gut microbiota, thus aiding in memory preservation in rats.
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Affiliation(s)
- Kun-Chieh Yeh
- School of Medicine, Fu Jen Catholic University, No.510, Zhongzheng Rd., Xinzhuang Dist, New Taipei City, 24205, Taiwan
- Department of Surgery, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
- Department of Surgery, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Chi-Feng Hung
- School of Medicine, Fu Jen Catholic University, No.510, Zhongzheng Rd., Xinzhuang Dist, New Taipei City, 24205, Taiwan
| | - Hui-Ling Lee
- Department of Chemistry, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Ting-Yang Hsieh
- P.H.D. Program in Neutrition & Food Science, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Su-Jane Wang
- School of Medicine, Fu Jen Catholic University, No.510, Zhongzheng Rd., Xinzhuang Dist, New Taipei City, 24205, Taiwan.
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan City, Taiwan.
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de Vries K, Medawar E, Korosi A, Witte AV. The Effect of Polyphenols on Working and Episodic Memory in Non-pathological and Pathological Aging: A Systematic Review and Meta-Analysis. Front Nutr 2022; 8:720756. [PMID: 35155509 PMCID: PMC8826433 DOI: 10.3389/fnut.2021.720756] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 12/20/2021] [Indexed: 11/13/2022] Open
Abstract
Life expectancy steadily increases, and so do age-associated diseases, leading to a growing population suffering from cognitive decline and dementia. Impairments in working memory (WM) and episodic memory (EM) are associated with an increased risk of developing dementia. While there are no effective pharmacological therapies to preserve or enhance cognition and to slow down the progression from mild memory complaints to dementia so far, plant-based nutrients including polyphenols have been suggested to exert beneficial effects on brain aging. This review studies whether supplementary polyphenols are effective in preserving or enhancing memory in both non-pathological and pathological aging, and whether there are polyphenol efficiency differences between WM and EM. A systematic literature search was conducted and 66 out of 294 randomized clinical trials with 20 participants or more per group, aged 40 years or older were included. These covered a daily intake of 35–1,600 mg polyphenols, e.g., flavonols, flavonoids, isoflovones, anthocyanins, and/or stilbenes, over the course of 2 weeks to 6.5 years duration. In total, around half of the studies reported a significantly improved performance after polyphenol administration compared to control, while three studies reported a worsening of performance, and the remainder did not observe any effects. According to pooled WM and EM meta-analysis of all memory outcomes reported in 49 studies, overall effect size for WM and EM indicated a significant small positive effect on EM and WM with similar estimates (b ~ 0.24, p < 0.001), with large study heterogeneity and significant Funnel asymmetry tests suggesting a positivity bias. These results remained similar when excluding studies reporting extremely large positive effect sizes from the meta-analyses. While Ginkgo biloba and isoflavones did not show benefits in subgroup meta-analyses, those suggested some effects in extracts containing anthocyanins, other flavonoids and resveratrol, again potentially resulting from publication bias. To conclude, a systematic review and meta-analysis indicate that short- to moderate-term polyphenol interventions might improve WM and EM in middle-to older aged adults, however, publication bias in favor of positive results seems likely, rendering definite conclusions difficult. Future studies with larger, more diverse samples and sensitive monitoring of cardiovascular, metabolic and beginning brain pathologies as well as longer follow-up are needed to better understand the impact of age, (beginning) pathologies, gender, and long-term use on polyphenol action.
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Affiliation(s)
- Karin de Vries
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Evelyn Medawar
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- Faculty of Philosophy, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Aniko Korosi
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - A. Veronica Witte
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- Clinic for Cognitive Neurology, University Medical Center Leipzig, Leipzig, Germany
- *Correspondence: A. Veronica Witte
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10
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Gauci S, Young LM, Arnoldy L, Lassemillante AC, Scholey A, Pipingas A. Dietary patterns in middle age: effects on concurrent neurocognition and risk of age-related cognitive decline. Nutr Rev 2021; 80:1129-1159. [PMID: 34392373 PMCID: PMC8990759 DOI: 10.1093/nutrit/nuab047] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Context Diet plays a critical role in cognitive integrity and decline in older adults. However, little is known about the relationship between diet and cognitive integrity in middle age. Objective To investigate the relationship between dietary patterns in healthy middle-aged adults and neurocognition both in middle age and later in life. Data Sources Using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, the following electronic databases were searched: Web of Science, Scopus, PubMed, and PsychInfo. Data Extraction Data from eligible articles was extracted by 2 reviewers. Data Analysis Articles included in the systematic review were synthesized (based on the synthesis without meta-analysis reporting guidelines) and assessed for quality (using the Joanna Briggs Institute checklist for randomized controlled trials, cohort studies, and cross-sectional studies) by 2 reviewers. Results Of 1558 studies identified, 34 met the eligibility criteria for inclusion. These comprised 9 cross-sectional studies, 23 longitudinal or prospective cohort studies, and 2 randomized controlled trials. Findings were mixed, with some studies reporting a significant positive relationship between adherence to various “healthy” dietary patterns and neurocognition, but others reporting no such relationship. Conclusion This systematic review demonstrated that adherence to the Mediterranean diet and other healthy dietary patterns in middle age can protect neurocognition later in life. Systematic Review Registration PROSPERO registration no. CRD42020153179.
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Affiliation(s)
- Sarah Gauci
- the Centre of Human Psychopharmacology, Swinburne University, Melbourne, Australia
- S. Gauci, Centre for Human Psychopharmacology, Mail H24, Swinburne University of Technology, PO Box 218, Hawthorn VIC 3122, Australia. E-mail:
| | - Lauren M Young
- the Centre of Human Psychopharmacology, Swinburne University, Melbourne, Australia
- IMPACT—the Institute for Mental and Physical Health and Clinical Translation, Food and Mood Centre, School of Medicine, Deakin University, Barwon Health, Geelong, Australia
| | - Lizanne Arnoldy
- the Centre of Human Psychopharmacology, Swinburne University, Melbourne, Australia
| | - Annie-Claude Lassemillante
- Department of Health and Medical Sciences and the Department of Health Professions, Swinburne University, Melbourne, Australia
| | - Andrew Scholey
- the Centre of Human Psychopharmacology, Swinburne University, Melbourne, Australia
- Nutrition Dietetics and Food, School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Andrew Pipingas
- the Centre of Human Psychopharmacology, Swinburne University, Melbourne, Australia
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11
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Leclerc M, Dudonné S, Calon F. Can Natural Products Exert Neuroprotection without Crossing the Blood-Brain Barrier? Int J Mol Sci 2021; 22:ijms22073356. [PMID: 33805947 PMCID: PMC8037419 DOI: 10.3390/ijms22073356] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 12/17/2022] Open
Abstract
The scope of evidence on the neuroprotective impact of natural products has been greatly extended in recent years. However, a key question that remains to be answered is whether natural products act directly on targets located in the central nervous system (CNS), or whether they act indirectly through other mechanisms in the periphery. While molecules utilized for brain diseases are typically bestowed with a capacity to cross the blood–brain barrier, it has been recently uncovered that peripheral metabolism impacts brain functions, including cognition. The gut–microbiota–brain axis is receiving increasing attention as another indirect pathway for orally administered compounds to act on the CNS. In this review, we will briefly explore these possibilities focusing on two classes of natural products: omega-3 polyunsaturated fatty acids (n-3 PUFAs) from marine sources and polyphenols from plants. The former will be used as an example of a natural product with relatively high brain bioavailability but with tightly regulated transport and metabolism, and the latter as an example of natural compounds with low brain bioavailability, yet with a growing amount of preclinical and clinical evidence of efficacy. In conclusion, it is proposed that bioavailability data should be sought early in the development of natural products to help identifying relevant mechanisms and potential impact on prevalent CNS disorders, such as Alzheimer’s disease.
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Affiliation(s)
- Manon Leclerc
- Faculté de Pharmacie, Université Laval, Québec, QC G1V 0A6, Canada;
- Axe Neurosciences, Centre de Recherche du CHU de Québec–Université Laval, Québec, QC G1V 4G2, Canada
- Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, QC G1V 0A6, Canada;
- OptiNutriBrain-Laboratoire International Associé (NutriNeuro France-INAF Canada), Québec, QC G1V 0A6, Canada
| | - Stéphanie Dudonné
- Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, QC G1V 0A6, Canada;
- OptiNutriBrain-Laboratoire International Associé (NutriNeuro France-INAF Canada), Québec, QC G1V 0A6, Canada
| | - Frédéric Calon
- Faculté de Pharmacie, Université Laval, Québec, QC G1V 0A6, Canada;
- Axe Neurosciences, Centre de Recherche du CHU de Québec–Université Laval, Québec, QC G1V 4G2, Canada
- Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, QC G1V 0A6, Canada;
- OptiNutriBrain-Laboratoire International Associé (NutriNeuro France-INAF Canada), Québec, QC G1V 0A6, Canada
- Correspondence: ; Tel.: +1-(418)-525-4444 (ext. 48697); Fax: +1-(418)-654-2761
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12
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Boccellino M, D’Angelo S. Anti-Obesity Effects of Polyphenol Intake: Current Status and Future Possibilities. Int J Mol Sci 2020; 21:E5642. [PMID: 32781724 PMCID: PMC7460589 DOI: 10.3390/ijms21165642] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 07/30/2020] [Accepted: 08/03/2020] [Indexed: 02/07/2023] Open
Abstract
The prevalence of obesity has steadily increased worldwide over the past three decades. The conventional approaches to prevent or treat this syndrome and its associated complications include a balanced diet, an increase energy expenditure, and lifestyle modification. Multiple pharmacological and non-pharmacological interventions have been developed with the aim of improving obesity complications. Recently, the use of functional foods and their bioactive components is considered a new approach in the prevention and management of this disease. Due to their biological properties, polyphenols may be considered as nutraceuticals and food supplement recommended for different syndromes. Polyphenols are a class of naturally-occurring phytochemicals, some of which have been shown to modulate physiological and molecular pathways involved in energy metabolism. Polyphenols could act in the stimulation of β-oxidation, adipocyte differentiation inhibition, counteract oxidative stress, etc. In this narrative review, we considered the association between polyphenols (resveratrol, quercetin, curcumin, and some polyphenolic extracts) and obesity, focusing on human trials. The health effects of polyphenols depend on the amount consumed and their bioavailability. Some results are contrasting, probably due to the various study designs and lengths, variation among subjects (age, gender, ethnicity), and chemical forms of the dietary polyphenols used. But, in conclusion, the data so far obtained encourage the setting of new trials, necessary to validate benefic role of polyphenols in obese individuals.
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Affiliation(s)
- Mariarosaria Boccellino
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Stefania D’Angelo
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
- Department of Movement Sciences and Wellbeing, Parthenope University, 80133 Naples, Italy
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13
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Bensalem J, Dudonné S, Etchamendy N, Pellay H, Amadieu C, Gaudout D, Dubreuil S, Paradis ME, Pomerleau S, Capuron L, Hudon C, Layé S, Desjardins Y, Pallet V. Polyphenols From Grape and Blueberry Improve Episodic Memory in Healthy Elderly with Lower Level of Memory Performance: A Bicentric Double-Blind, Randomized, Placebo-Controlled Clinical Study. J Gerontol A Biol Sci Med Sci 2020; 74:996-1007. [PMID: 30032176 DOI: 10.1093/gerona/gly166] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Indexed: 01/01/2023] Open
Abstract
Polyphenols are promising nutritional bioactives exhibiting beneficial effect on age-related cognitive decline. This study evaluated the effect of a polyphenol-rich extract from grape and blueberry (PEGB) on memory of healthy elderly subjects (60-70 years-old). A bicentric, randomized, double-blind, placebo-controlled trial was conducted with 215 volunteers receiving 600 mg/day of PEGB (containing 258 mg flavonoids) or a placebo for 6 months. The primary outcome was the CANTAB Paired Associate Learning (PAL), a visuospatial learning and episodic memory test. Secondary outcomes included verbal episodic and recognition memory (VRM) and working memory (SSP). There was no significant effect of PEGB on the PAL on the whole cohort. Yet, PEGB supplementation improved VRM-free recall. Stratifying the cohort in quartiles based on PAL at baseline revealed a subgroup with advanced cognitive decline (decliners) who responded positively to the PEGB. In this group, PEGB consumption was also associated with a better VRM-delayed recognition. In addition to a lower polyphenol consumption, the urine metabolomic profile of decliners revealed that they excreted more metabolites. Urinary concentrations of specific flavan-3-ols metabolites were associated, at the end of the intervention, with the memory improvements. Our study demonstrates that PEGB improves age-related episodic memory decline in individuals with the highest cognitive impairments.
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Affiliation(s)
- Julien Bensalem
- Univ. de Bordeaux, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,INRA, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,Activ'Inside, Beychac et Caillau, France
| | - Stéphanie Dudonné
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, Québec Canada.,OptiNutriBrain International Associated Laboratory (NutriNeuro France-INAF Canada), Bordeaux, France
| | - Nicole Etchamendy
- Univ. de Bordeaux, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,INRA, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France
| | - Hermine Pellay
- Univ. de Bordeaux, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,INRA, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,Activ'Inside, Beychac et Caillau, France
| | - Camille Amadieu
- Univ. de Bordeaux, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,INRA, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France
| | | | | | - Marie-Eve Paradis
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, Québec Canada.,OptiNutriBrain International Associated Laboratory (NutriNeuro France-INAF Canada), Bordeaux, France
| | - Sonia Pomerleau
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, Québec Canada
| | - Lucile Capuron
- Univ. de Bordeaux, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,INRA, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,OptiNutriBrain International Associated Laboratory (NutriNeuro France-INAF Canada), Bordeaux, France
| | - Carol Hudon
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, Québec Canada.,Centre de recherche de l'Institut universitaire en santé mentale de Québec, Québec, Canada
| | - Sophie Layé
- Univ. de Bordeaux, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,INRA, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,OptiNutriBrain International Associated Laboratory (NutriNeuro France-INAF Canada), Bordeaux, France
| | - Yves Desjardins
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, Québec Canada.,OptiNutriBrain International Associated Laboratory (NutriNeuro France-INAF Canada), Bordeaux, France
| | - Véronique Pallet
- Univ. de Bordeaux, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,INRA, Nutrition et Neurobiologie Intégrée, UMR, Bordeaux, France.,OptiNutriBrain International Associated Laboratory (NutriNeuro France-INAF Canada), Bordeaux, France.,Bordeaux INP, Nutrition et neurobiologie intégrée, UMR, Bordeaux, France
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14
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Correlations between Microbiota Bioactivity and Bioavailability of Functional Compounds: A Mini-Review. Biomedicines 2020; 8:biomedicines8020039. [PMID: 32093399 PMCID: PMC7167868 DOI: 10.3390/biomedicines8020039] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 02/19/2020] [Indexed: 12/12/2022] Open
Abstract
Numerous studies have demonstrated the role of the microbiota in supporting the physiological functions, owing to its metabolomic component. The presence of biocomponents generally leads to the correction of the microbial pattern correlated with the reduction of oxidative pressure. This study aims to present the main processes that correlate the bioavailability and bioactivity of some functional components through the action of the human microbiota. The use of probiotics and prebiotics is an innovative manner involving alternatives that increase the bioavailability of certain natural or metabolic components has been proposed. Probiotic strains (Saccharomyces cerevisiae or Lactobacillus (L.) plantarum) may represent an intermediary for increasing the antioxidant bioactivity, and they may be administered in the form of a biomass enriched with functional compounds, such as phenolic acids. The limiting effect of gastrointestinal transit is, in several cases, the key to the biopharmaceutical value of new products (or supplements). The identification of newer ways of formulating supplements also involves the compatibility of different types of products, the testing of bioaccessibility, and the elimination of biotransformations.
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15
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Cardoso T, Gonçalves A, Estevinho BN, Rocha F. Potential food application of resveratrol microparticles: Characterization and controlled release studies. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.07.079] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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16
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Milke L, Kallscheuer N, Kappelmann J, Marienhagen J. Tailoring Corynebacterium glutamicum towards increased malonyl-CoA availability for efficient synthesis of the plant pentaketide noreugenin. Microb Cell Fact 2019; 18:71. [PMID: 30975146 PMCID: PMC6460773 DOI: 10.1186/s12934-019-1117-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 04/03/2019] [Indexed: 12/28/2022] Open
Abstract
Background In the last years, different biotechnologically relevant microorganisms have been engineered for the synthesis of plant polyphenols such as flavonoids and stilbenes. However, low intracellular availability of malonyl-CoA as essential precursor for most plant polyphenols of interest is regarded as the decisive bottleneck preventing high product titers. Results In this study, Corynebacterium glutamicum, which emerged as promising cell factory for plant polyphenol production, was tailored by rational metabolic engineering towards providing significantly more malonyl-CoA for product synthesis. This was achieved by improving carbon source uptake, transcriptional deregulation of accBC and accD1 encoding the two subunits of the acetyl-CoA carboxylase (ACC), reduced flux into the tricarboxylic acid (TCA) cycle, and elimination of anaplerotic carboxylation of pyruvate. The constructed strains were used for the synthesis of the pharmacologically interesting plant pentaketide noreugenin, which is produced by plants such as Aloe arborescens from five molecules of malonyl-CoA. In this context, accumulation of the C1/C6 cyclized intermediate 1-(2,4,6-trihydroxyphenyl)butane-1,3-dione (TPBD) was observed, which could be fully cyclized to the bicyclic product noreugenin by acidification. Conclusion The best strain C. glutamicum Nor2 C5 mufasOBCD1 PO6-iolT1 ∆pyc allowed for synthesis of 53.32 mg/L (0.278 mM) noreugenin in CGXII medium supplemented with casamino acids within 24 h. Electronic supplementary material The online version of this article (10.1186/s12934-019-1117-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lars Milke
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Nicolai Kallscheuer
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany.,Bioeconomy Science Center (BioSC), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Jannick Kappelmann
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Jan Marienhagen
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany. .,Bioeconomy Science Center (BioSC), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany. .,Institute of Biotechnology, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany.
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17
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Cortés-Herrera C, Artavia G, Leiva A, Granados-Chinchilla F. Liquid Chromatography Analysis of Common Nutritional Components, in Feed and Food. Foods 2018; 8:E1. [PMID: 30577557 PMCID: PMC6352167 DOI: 10.3390/foods8010001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/28/2018] [Accepted: 11/05/2018] [Indexed: 12/20/2022] Open
Abstract
Food and feed laboratories share several similarities when facing the implementation of liquid-chromatographic analysis. Using the experience acquired over the years, through application chemistry in food and feed research, selected analytes of relevance for both areas were discussed. This review focused on the common obstacles and peculiarities that each analyte offers (during the sample treatment or the chromatographic separation) throughout the implementation of said methods. A brief description of the techniques which we considered to be more pertinent, commonly used to assay such analytes is provided, including approaches using commonly available detectors (especially in starter labs) as well as mass detection. This manuscript consists of three sections: feed analysis (as the start of the food chain); food destined for human consumption determinations (the end of the food chain); and finally, assays shared by either matrices or laboratories. Analytes discussed consist of both those considered undesirable substances, contaminants, additives, and those related to nutritional quality. Our review is comprised of the examination of polyphenols, capsaicinoids, theobromine and caffeine, cholesterol, mycotoxins, antibiotics, amino acids, triphenylmethane dyes, nitrates/nitrites, ethanol soluble carbohydrates/sugars, organic acids, carotenoids, hydro and liposoluble vitamins. All analytes are currently assayed in our laboratories.
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Affiliation(s)
- Carolina Cortés-Herrera
- Centro Nacional de Ciencia y Tecnología de Alimentos (CITA), Universidad de Costa Rica, Ciudad Universitaria Rodrigo Facio 11501-2060, Costa Rica.
| | - Graciela Artavia
- Centro Nacional de Ciencia y Tecnología de Alimentos (CITA), Universidad de Costa Rica, Ciudad Universitaria Rodrigo Facio 11501-2060, Costa Rica.
| | - Astrid Leiva
- Centro de Investigación en Nutrición Animal, Universidad de Costa Rica, Ciudad Universitaria Rodrigo 11501-2060, Costa Rica.
| | - Fabio Granados-Chinchilla
- Centro de Investigación en Nutrición Animal, Universidad de Costa Rica, Ciudad Universitaria Rodrigo 11501-2060, Costa Rica.
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Rohdewald P. Pleiotropic Effects of French Maritime Pine Bark Extract to Promote Healthy Aging. Rejuvenation Res 2018; 22:210-217. [PMID: 30215292 DOI: 10.1089/rej.2018.2095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Extension of the healthy life span is of primary importance for the aging society. Among exercise, healthy nutrition, and mental training, food supplements are widely used as preventive measures to postpone the diverse symptoms of aging. The extract from the bark of the French maritime pine, Pycnogenol, rich on flavonoids, has anti-inflammatory and antioxidative property, proven in in vivo studies. The extract reduces oxidative stress and improves endothelial health. Its antithrombotic properties are based on inhibition of platelet aggregation. In double-blind, placebo-controlled clinical studies, Pycnogenol shows diverse positive effects. With respect to cardiovascular symptoms, the extract has an antihypertensive effect, slows down the progression of atherosclerosis, and prevents venous thrombosis. As reported in studies in China and the United States, type 2 diabetes and diabetic retinopathy is improved with Pycnogenol. The extract restores mobility of seniors in case of patients suffering from osteoarthritis, Pycnogenol reduces pain and stiffness and use of analgesics. Furthermore, cognitive functions of elderly people, especially spatial memory, are significantly ameliorated. Climacteric symptoms are significantly alleviated by the pine bark extract. Urinary symptoms of benign prostatic hyperplasia are reduced by Pycnogenol. In combination with L-arginine, Pycnogenol restores erectile function in men with erectile dysfunction. The sum of these positive effects on relevant symptoms of aging suggests using Pycnogenol for a more extended period of healthy aging.
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Affiliation(s)
- Peter Rohdewald
- Institute of Pharmaceutical Chemistry, University of Münster, Münster, Germany
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19
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Polyphenol-rich extract from grape and blueberry attenuates cognitive decline and improves neuronal function in aged mice. J Nutr Sci 2018; 7:e19. [PMID: 29854398 PMCID: PMC5971226 DOI: 10.1017/jns.2018.10] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/10/2018] [Accepted: 04/13/2018] [Indexed: 02/06/2023] Open
Abstract
Ageing is characterised by memory deficits, associated with brain plasticity impairment. Polyphenols from berries, such as flavan-3-ols, anthocyanins, and resveratrol, have been suggested to modulate synaptic plasticity and cognitive processes. In the present study we assessed the preventive effect of a polyphenol-rich extract from grape and blueberry (PEGB), with high concentrations of flavonoids, on age-related cognitive decline in mice. Adult and aged (6 weeks and 16 months) mice were fed a PEGB-enriched diet for 14 weeks. Learning and memory were assessed using the novel object recognition and Morris water maze tasks. Brain polyphenol content was evaluated with ultra-high-performance LC-MS/MS. Hippocampal neurotrophin expression was measured using quantitative real-time PCR. Finally, the effect of PEGB on adult hippocampal neurogenesis was assessed by immunochemistry, counting the number of cells expressing doublecortin and the proportion of cells with dendritic prolongations. The combination of grape and blueberry polyphenols prevented age-induced learning and memory deficits. Moreover, it increased hippocampal nerve growth factor (Ngf) mRNA expression. Aged supplemented mice displayed a greater proportion of newly generated neurons with prolongations than control age-matched mice. Some of the polyphenols included in the extract were detected in the brain in the native form or as metabolites. Aged supplemented mice also displayed a better survival rate. These data suggest that PEGB may prevent age-induced cognitive decline. Possible mechanisms of action include a modulation of brain plasticity. Post-treatment detection of phenolic compounds in the brain suggests that polyphenols may act directly at the central level, while they can make an impact on mouse survival through a potential systemic effect.
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20
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Rasouli H, Farzaei MH, Khodarahmi R. Polyphenols and their benefits: A review. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2017. [DOI: 10.1080/10942912.2017.1354017] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hassan Rasouli
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Khodarahmi
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Pharmacognosy and Biotechnology, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Borai IH, Ezz MK, Rizk MZ, Aly HF, El-Sherbiny M, Matloub AA, Fouad GI. Therapeutic impact of grape leaves polyphenols on certain biochemical and neurological markers in AlCl 3-induced Alzheimer's disease. Biomed Pharmacother 2017; 93:837-851. [PMID: 28715867 DOI: 10.1016/j.biopha.2017.07.038] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 06/27/2017] [Accepted: 07/06/2017] [Indexed: 11/28/2022] Open
Abstract
Alzheimer's disease (AD) is a grave and prevailing neurodegenerative disease, characterized by slow and progressive neurodegeneration in different brain regions. Aluminum (Al) is a potent and widely distributed neurotoxic metal, implicated in the neuropathogenesis of AD. This study aimed to evaluate the possible neurorestorative potential of Vitis vinifera Leaves Polyphenolic (VLP) extract in alleviating aluminum chloride (AlCl3)-induced neurotoxicity in male rats. AlCl3 neurotoxicity induced a significant decrease in brain/serum acetylcholine (ACh) contents and serum dopamine (DA) levels, along with a significant increment of brain/serum acetylcholinesterase (AChE) activities. In addition, Al treatment resulted in significantly decreased serum levels of both total antioxidant capacity (TAC) and brain-derived neurotrophic factor (BDNF), and significantly increased serum levels of both interleukin-6 (IL-6) and total homocysteine (tHcy), as compared to control. Behavioral alterations, assessed by the T-maze test, showed impaired cognitive function. Furthermore, AD-brains revealed an increase in DNA fragmentation as evidenced by comet assay. AlCl3 induction also caused histopathological alterations in AD-brain. Treatment of AD-rats with VLP extract (100mg/kg body weight/day) improved neurobehavioral changes, as evidenced by the improvement in brain function, as well as, modulation of most biochemical markers, and confirmed by T-maze test, the histopathological study of the brain and comet assay. The current work indicates that the VLP extract has neuroprotective, antioxidative, anti-inflammatory, and anti-amnesic activities against AlCl3-induced cerebral damages and neurocognitive dysfunction.
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Affiliation(s)
- Ibrahim H Borai
- Biochemistry Department, Faculty of Science, Ain-Shams University, Cairo, Egypt.
| | - Magda K Ezz
- Biochemistry Department, Faculty of Science, Ain-Shams University, Cairo, Egypt.
| | - Maha Z Rizk
- Therapeutical Chemistry Department, National Research Center, Dokki, Cairo, Egypt.
| | - Hanan F Aly
- Therapeutical Chemistry Department, National Research Center, Dokki, Cairo, Egypt.
| | - Mahmoud El-Sherbiny
- Therapeutical Chemistry Department, National Research Center, Dokki, Cairo, Egypt.
| | - Azza A Matloub
- Pharmacognosy Department, National Research Center, Dokki, Cairo, Egypt.
| | - Ghadha I Fouad
- Therapeutical Chemistry Department, National Research Center, Dokki, Cairo, Egypt.
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Neshatdoust S, Saunders C, Castle SM, Vauzour D, Williams C, Butler L, Lovegrove JA, Spencer JPE. High-flavonoid intake induces cognitive improvements linked to changes in serum brain-derived neurotrophic factor: Two randomised, controlled trials. ACTA ACUST UNITED AC 2016; 4:81-93. [PMID: 28035345 PMCID: PMC5166520 DOI: 10.3233/nha-1615] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND: Recent clinical studies have indicated the beneficial impact of dietary flavonoid intake on human cognitive performance. Although the mechanisms that mediate such improvements are currently unclear, animal and human trial data suggest that changes in neurotrophin expression, and related signalling apparatus, may be involved. OBJECTIVE: To investigate the link between changes in serum brain-derived neurotrophic factor (BDNF) and changes in human cognitive performance following flavonoid intake. METHODS: The relationship between serum levels of BDNF and age, gender, BMI, waist circumference, blood pressure and cognition at baseline, and following flavonoid intake, was investigated in two distinct randomised, controlled clinical trials. Trial 1 was conducted in men and women (aged 26–70 y; consuming an average of 3 portions of fruit and vegetables per day) and delivered high-flavonoid (>15 mg/100 g) or low-flavonoid (<5 mg/100 g) fruit and vegetables and increased intake by 2 portions every 6 weeks. The control arm was habitual diet over the same time frame. Trial 2 was conducted in an older males and female cohort (aged 62–75 y) intervening with a high-flavanol cocoa drink (494 mg total flavanols) and a low-flavanol cocoa drink (23 mg total flavanols) for 12 weeks. RESULTS: Serum BDNF levels increased linearly to the age of 65, after which BDNF levels were found to decrease markedly. All other physiological and anthropometric measurements proved to not be significantly associated with serum BDNF levels (p > 0.05), although higher levels in males compared to females almost achieved significance (p = 0.056). At baseline, higher serum BDNF levels were associated with significantly better global cognition scores, relative to individuals with lower serum levels. In addition, following intervention for 18 weeks, high-flavonoid, but not low-flavonoid, fruit and vegetable intake induced significant improvements in cognitive performance and increases in serum BDNF levels (p = <0.001). Flavanol intervention for 12 weeks also resulted in significant increases in serum BDNF (p = <0.001), and such increases were correlated with improvements in global cognitive performance. CONCLUSION: Increases in global cognition induced by high flavonoid fruit and vegetables, and cocoa flavanols were paralleled by concurrent changes in serum BDNF levels, suggesting a role for BDNF in flavonoid-induced cognitive improvements. Furthermore, we provide further data suggesting that serum BDNF levels may represent a biomarker of cognitive function.
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Affiliation(s)
- Sara Neshatdoust
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
| | - Caroline Saunders
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
| | - Sophie M Castle
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
| | - David Vauzour
- Department of Nutrition, Norwich Medical School, University of East Anglia , Norwich, UK
| | - Claire Williams
- School of Psychology and Clinical Language Sciences, University of Reading , Reading, UK
| | - Laurie Butler
- School of Psychology and Clinical Language Sciences, University of Reading , Reading, UK
| | - Julie A Lovegrove
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
| | - Jeremy P E Spencer
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
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