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Neacșu SM, Mititelu M, Ozon EA, Musuc AM, Iuga IDM, Manolescu BN, Petrescu S, Pandele Cusu J, Rusu A, Surdu VA, Oprea E, Lupuliasa D, Popescu IA. Comprehensive Analysis of Novel Synergistic Antioxidant Formulations: Insights into Pharmacotechnical, Physical, Chemical, and Antioxidant Properties. Pharmaceuticals (Basel) 2024; 17:690. [PMID: 38931357 PMCID: PMC11206646 DOI: 10.3390/ph17060690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/22/2024] [Accepted: 05/25/2024] [Indexed: 06/28/2024] Open
Abstract
(1) Background: Oxidative stress plays a pivotal role in the pathogenesis of various diseases, including neurodegenerative disorders, cardiovascular diseases, cancer, and diabetes, highlighting the pressing need for effective antioxidant interventions. (2) Methods: In this study, we aimed to develop and characterise two novel antioxidant formulations, F3 and F4, as therapeutic interventions for oxidative stress-related conditions. (3) Results: The physicochemical characterisation, preformulation analysis, formulation, preparation of filling powders for capsules, capsule content evaluation, and antioxidant activity assessment of the two novel antioxidant formulations were assessed. These formulations comprise a combination of well-established antioxidants like quercetin, biotin, coenzyme Q10, and resveratrol. Through comprehensive testing, the formulations' antioxidant efficacy, stability, and potential synergistic interactions were evaluated. (4) Conclusions: The findings underscore the promising potential of these formulations as therapeutic interventions for oxidative stress-related disorders and highlight the significance of antioxidant interventions in mitigating their progression.
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Affiliation(s)
- Sorinel Marius Neacșu
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (S.M.N.); (D.L.); (I.A.P.)
| | - Magdalena Mititelu
- Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (M.M.); (I.D.M.I.)
| | - Emma Adriana Ozon
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (S.M.N.); (D.L.); (I.A.P.)
| | - Adina Magdalena Musuc
- Institute of Physical Chemistry—Ilie Murgulescu, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania; (S.P.); (J.P.C.); (A.R.)
| | - Izabela Dana Maria Iuga
- Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (M.M.); (I.D.M.I.)
| | - Bogdan Nicolae Manolescu
- “C. Nenitescu” Department of Organic Chemistry, Faculty of Applied Chemistry and Science of Materials, National University for Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Simona Petrescu
- Institute of Physical Chemistry—Ilie Murgulescu, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania; (S.P.); (J.P.C.); (A.R.)
| | - Jeanina Pandele Cusu
- Institute of Physical Chemistry—Ilie Murgulescu, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania; (S.P.); (J.P.C.); (A.R.)
| | - Adriana Rusu
- Institute of Physical Chemistry—Ilie Murgulescu, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania; (S.P.); (J.P.C.); (A.R.)
| | - Vasile-Adrian Surdu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, National University for Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Eliza Oprea
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1–3 Portocalilor Way, 060101 Bucharest, Romania;
| | - Dumitru Lupuliasa
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (S.M.N.); (D.L.); (I.A.P.)
| | - Ioana Andreea Popescu
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania; (S.M.N.); (D.L.); (I.A.P.)
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Raut S, Bhalerao A, Powers M, Gonzalez M, Mancuso S, Cucullo L. Hypometabolism, Alzheimer's Disease, and Possible Therapeutic Targets: An Overview. Cells 2023; 12:2019. [PMID: 37626828 PMCID: PMC10453773 DOI: 10.3390/cells12162019] [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: 05/17/2023] [Revised: 07/19/2023] [Accepted: 08/06/2023] [Indexed: 08/27/2023] Open
Abstract
The brain is a highly dynamic organ that requires a constant energy source to function normally. This energy is mostly supplied by glucose, a simple sugar that serves as the brain's principal fuel source. Glucose transport across the blood-brain barrier (BBB) is primarily controlled via sodium-independent facilitated glucose transport, such as by glucose transporter 1 (GLUT1) and 3 (GLUT3). However, other glucose transporters, including GLUT4 and the sodium-dependent transporters SGLT1 and SGLT6, have been reported in vitro and in vivo. When the BBB endothelial layer is crossed, neurons and astrocytes can absorb the glucose using their GLUT1 and GLUT3 transporters. Glucose then enters the glycolytic pathway and is metabolized into adenosine triphosphate (ATP), which supplies the energy to support cellular functions. The transport and metabolism of glucose in the brain are impacted by several medical conditions, which can cause neurological and neuropsychiatric symptoms. Alzheimer's disease (AD), Parkinson's disease (PD), epilepsy, traumatic brain injury (TBI), schizophrenia, etc., are a few of the most prevalent disorders, characterized by a decline in brain metabolism or hypometabolism early in the course of the disease. Indeed, AD is considered a metabolic disorder related to decreased brain glucose metabolism, involving brain insulin resistance and age-dependent mitochondrial dysfunction. Although the conventional view is that reduced cerebral metabolism is an effect of neuronal loss and consequent brain atrophy, a growing body of evidence points to the opposite, where hypometabolism is prodromal or at least precedes the onset of brain atrophy and the manifestation of clinical symptoms. The underlying processes responsible for these glucose transport and metabolic abnormalities are complicated and remain poorly understood. This review article provides a comprehensive overview of the current understanding of hypometabolism in AD and potential therapeutic targets.
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Affiliation(s)
- Snehal Raut
- Department of Foundational Medical Studies, Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA; (S.R.); (A.B.); (M.G.); (S.M.)
| | - Aditya Bhalerao
- Department of Foundational Medical Studies, Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA; (S.R.); (A.B.); (M.G.); (S.M.)
| | - Michael Powers
- Department of Biological and Biomedical Sciences, Oakland University, Rochester, MI 48309, USA;
| | - Minelly Gonzalez
- Department of Foundational Medical Studies, Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA; (S.R.); (A.B.); (M.G.); (S.M.)
| | - Salvatore Mancuso
- Department of Foundational Medical Studies, Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA; (S.R.); (A.B.); (M.G.); (S.M.)
| | - Luca Cucullo
- Department of Foundational Medical Studies, Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA; (S.R.); (A.B.); (M.G.); (S.M.)
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Park JS, Rehman IU, Choe K, Ahmad R, Lee HJ, Kim MO. A Triterpenoid Lupeol as an Antioxidant and Anti-Neuroinflammatory Agent: Impacts on Oxidative Stress in Alzheimer's Disease. Nutrients 2023; 15:3059. [PMID: 37447385 DOI: 10.3390/nu15133059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease illustrated by neuronal dysfunctions, leading to memory weaknesses and personality changes mostly in the aged population worldwide. The exact cause of AD is unclear, but numerous studies have addressed the involvement of oxidative stress (OS), induced by reactive oxygen species (ROS), to be one of the leading causes in developing AD. OS dysregulates the cellular homeostasis, causing abnormal protein and lipid metabolism. Nutrition plays a pivotal role in modulating the antioxidant system and decreases the neuronal ROS level, thus playing an important therapeutic role in neurodegenerative diseases, especially in AD. Hence, medicinal herbs and their extracts have received global attention as a commercial source of antioxidants Lupeol. Lupeol is a pentacyclic triterpenoid and has many biological functions. It is available in fruits, vegetables, and medicinal plants. It has shown effective antioxidant and anti-inflammatory properties, and higher blood-brain barrier permeability. Also, the binding and inhibitory potentials of Lupeol have been investigated and proved to be effective against certain receptor proteins and enzymes in AD studies by computational molecular docking approaches. Therefore, AD-related research has gained interest in investigating the therapeutic effects of Lupeol. However, despite its beneficial effects in AD, there is still a lack of research in Lupeol. Hence, we compiled in this analysis all preclinical research that looked at Lupeol as an antioxidant and anti-inflammatory agent for AD.
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Affiliation(s)
- Jun Sung Park
- Division of Life Sciences and Applied Life Science (BK21 Four), College of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Inayat Ur Rehman
- Division of Life Sciences and Applied Life Science (BK21 Four), College of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Kyonghwan Choe
- Division of Life Sciences and Applied Life Science (BK21 Four), College of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Riaz Ahmad
- Division of Life Sciences and Applied Life Science (BK21 Four), College of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hyeon Jin Lee
- Division of Life Sciences and Applied Life Science (BK21 Four), College of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Myeong Ok Kim
- Division of Life Sciences and Applied Life Science (BK21 Four), College of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea
- Alz-Dementia Korea Co., Jinju 52828, Republic of Korea
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Olufunmilayo EO, Gerke-Duncan MB, Holsinger RMD. Oxidative Stress and Antioxidants in Neurodegenerative Disorders. Antioxidants (Basel) 2023; 12:antiox12020517. [PMID: 36830075 PMCID: PMC9952099 DOI: 10.3390/antiox12020517] [Citation(s) in RCA: 69] [Impact Index Per Article: 69.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Neurodegenerative disorders constitute a substantial proportion of neurological diseases with significant public health importance. The pathophysiology of neurodegenerative diseases is characterized by a complex interplay of various general and disease-specific factors that lead to the end point of neuronal degeneration and loss, and the eventual clinical manifestations. Oxidative stress is the result of an imbalance between pro-oxidant species and antioxidant systems, characterized by an elevation in the levels of reactive oxygen and reactive nitrogen species, and a reduction in the levels of endogenous antioxidants. Recent studies have increasingly highlighted oxidative stress and associated mitochondrial dysfunction to be important players in the pathophysiologic processes involved in neurodegenerative conditions. In this article, we review the current knowledge of the general effects of oxidative stress on the central nervous system, the different specific routes by which oxidative stress influences the pathophysiologic processes involved in Alzheimer's disease, Parkinson's disease, Amyotrophic Lateral Sclerosis and Huntington's disease, and how oxidative stress may be therapeutically reversed/mitigated in order to stall the pathological progression of these neurodegenerative disorders to bring about clinical benefits.
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Affiliation(s)
- Edward O. Olufunmilayo
- Laboratory of Molecular Neuroscience and Dementia, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
- Department of Medicine, University College Hospital, Queen Elizabeth Road, Oritamefa, Ibadan 5116, PMB, Nigeria
| | - Michelle B. Gerke-Duncan
- Education Innovation, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - R. M. Damian Holsinger
- Laboratory of Molecular Neuroscience and Dementia, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
- Neuroscience, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
- Correspondence:
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Chopade P, Chopade N, Zhao Z, Mitragotri S, Liao R, Chandran Suja V. Alzheimer's and Parkinson's disease therapies in the clinic. Bioeng Transl Med 2023; 8:e10367. [PMID: 36684083 PMCID: PMC9842041 DOI: 10.1002/btm2.10367] [Citation(s) in RCA: 40] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/31/2022] [Accepted: 06/06/2022] [Indexed: 01/25/2023] Open
Abstract
Alzheimer's disease (AD) and Parkinson's disease (PD) are the most prevalent neurodegenerative diseases, affecting millions and costing billions each year in the United States alone. Despite tremendous progress in developing therapeutics that manage the symptoms of these two diseases, the scientific community has yet to develop a treatment that effectively slows down, inhibits, or cures neurodegeneration. To gain a better understanding of the current therapeutic frontier for the treatment of AD and PD, we provide a review on past and present therapeutic strategies for these two major neurodegenerative disorders in the clinical trial process. We briefly recap currently US Food and Drug Administration-approved therapies, and then explore trends in clinical trials across the variables of therapy mechanism of disease intervention, administration route, use of delivery vehicle, and outcome measures, across the clinical phases over time for "Drug" and "Biologic" therapeutics. We then present the success rate of past clinical trials and analyze the intersections in therapeutic approaches for AD and PD, revealing the shift in clinical trials away from therapies targeting neurotransmitter systems that provide symptomatic relief, and towards anti-aggregation, anti-inflammatory, anti-oxidant, and regeneration strategies that aim to inhibit the root causes of disease progression. We also highlight the evolving distribution of the types of "Biologic" therapies investigated, and the slowly increasing yet still severe under-utilization of delivery vehicles for AD and PD therapeutics. We then briefly discuss novel preclinical strategies for treating AD and PD. Overall, this review aims to provide a succinct overview of the clinical landscape of AD and PD therapies to better understand the field's therapeutic strategy in the past and the field's evolution in approach to the present, to better inform how to effectively treat AD and PD in the future.
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Affiliation(s)
| | | | - Zongmin Zhao
- Department of Pharmaceutical Sciences, College of PharmacyUniversity of Illinois at ChicagoChicagoIllinoisUSA
| | - Samir Mitragotri
- School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired EngineeringCambridgeMassachusettsUSA
| | - Rick Liao
- School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired EngineeringCambridgeMassachusettsUSA
| | - Vineeth Chandran Suja
- School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
- Wyss Institute for Biologically Inspired EngineeringCambridgeMassachusettsUSA
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Sundram S, Malviya R, Awasthi R. Genetic Causes of Alzheimer's Disease and the Neuroprotective Role of Melatonin in its Management. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2022; 22:CNSNDDT-EPUB-126085. [PMID: 36056839 DOI: 10.2174/1871527321666220901125730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/15/2022] [Accepted: 07/16/2022] [Indexed: 06/15/2023]
Abstract
Dementia is a global health concern owing to its complexity, which also poses a great challenge to pharmaceutical scientists and neuroscientists. The global dementia prevalence is approximately 47 million, which may increase by three times by 2050. Alzheimer's disease (AD) is the most common cause of dementia. AD is a severe age-related neurodegenerative disorder characterized by short-term memory loss, aphasia, mood imbalance, and executive function. The etiology of AD is still unknown, and the exact origin of the disease is still under investigation. Aggregation of Amyloid β (Aβ) plaques or neurotoxic Aβo oligomers outside the neuron is the most common cause of AD development. Amyloid precursor protein (APP) processing by β secretase and γ secretase produces abnormal Aβ monomers. This aggregation of Aβ and NFT is promoted by various genes like BACE1, ADAM10, PIN1, GSK-3, APOE, PPARα, etc. Identification of these genes can discover several therapeutic targets that can be useful in studying pathogenesis and underlying treatments. Melatonin modulates the activities of these genes, thereby reducing Aβ production and increasing its clearance. Melatonin also reduces the expression of APP by attenuating cAMP, thereby enhancing the non-amyloidogenic process. Present communication explored and discussed the neuroprotective role of melatonin against Aβ-dependent AD pathogenesis. The manuscript also discussed potential molecular and genetic mechanisms of melatonin in the production and clearance of Aβ that could ameliorate neurotoxicity.
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Affiliation(s)
- Sonali Sundram
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, U.P., India
- Amity Institute of Pharmacy, Amity University Uttar Pradesh, Sector-125, Noida 201313, India
| | - Rishabha Malviya
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida, U.P., India
| | - Rajendra Awasthi
- Department of Pharmaceutical Sciences, School of Health Science and Technology, University of Petroleum and Energy Studies (UPES), Energy Acres, Bidholi, Via-Prem Nagar, Dehradun - 248 007, Uttarakhand, India
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Ogunsuyi O, Olasehinde T, Oboh G. Neuroprotective properties of Solanum leaves in Transgenic Drosophila melanogaster model of Alzheimer's disease. Biomarkers 2022; 27:587-598. [PMID: 35546534 DOI: 10.1080/1354750x.2022.2077446] [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: 11/02/2022]
Abstract
INTRODUCTION We investigated the effect of African eggplant (AE) (Solanum macrocarpon L) and Black nightshade (BN) (Solanum nigrum L) leaves; two tropical vegetables consumed by humans on behavioral, biochemical and histological indices in Drosophila melanogaster model of Alzheimer's disease (AD). MATERIALS AND METHOD Transgenic flies expressing human Amyloid Precursor Protein (hAPP) and β-secretase (hBACE 1) were exposed to the pulverized leaf samples (0.1 and 1.0%) in their diets for fourteen days. Thereafter, the flies were assessed for their behavioral indices and routine histology of brain cells. Furthermore, fly head homogenates were assayed for β-amyloid level, activities of acetylcholinesterase (AChE) and β-secretase (BACE-1), as well as oxidative stress markers. RESULTS Result showed that the significantly lower (p < 0.05) behavioral parameters (survival, locomotor performance and memory index), higher AChE and BACE-1 activities, β-amyloid, ROS and lipid peroxidation levels, as well as reduced antioxidant indices observed in the AD flies, were significantly ameliorated (p < 0.05) in AD flies treated with the leaf samples. DISCUSSION This study has showed that leaves of AE and BN ameliorated behavioral and biochemical indices in AD flies via neural enzyme modulatory, and antioxidant mechanisms. CONCLUSION Hence, this study further justifies the neuroprotective properties of both AE and BN.
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Affiliation(s)
- Opeyemi Ogunsuyi
- Department of Biochemistry, Federal University of Technology, P.M.B. 704, Akure, Nigeria.,Department of Biomedical Technology, Federal University of Technology, P.M.B. 704, Akure, Nigeria
| | - Tosin Olasehinde
- Nutrition and Toxicology Division, Food Technology Department, Federal Institute of Industrial Research, Lagos, Nigeria.,Discipline of Microbiology, School of Life Sciences, University of Kwazulu-Natal, Westville, Durban, Kwazulu-Natal Province, South Africa
| | - Ganiyu Oboh
- Department of Biochemistry, Federal University of Technology, P.M.B. 704, Akure, Nigeria
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Antioxidants in Alzheimer's Disease: Current Therapeutic Significance and Future Prospects. BIOLOGY 2022; 11:biology11020212. [PMID: 35205079 PMCID: PMC8869589 DOI: 10.3390/biology11020212] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/17/2022] [Accepted: 01/21/2022] [Indexed: 01/27/2023]
Abstract
Alzheimer's disease (AD) rate is accelerating with the increasing aging of the world's population. The World Health Organization (WHO) stated AD as a global health priority. According to the WHO report, around 82 million people in 2030 and 152 million in 2050 will develop dementia (AD contributes 60% to 70% of cases), considering the current scenario. AD is the most common neurodegenerative disease, intensifying impairments in cognition, behavior, and memory. Histopathological AD variations include extracellular senile plaques' formation, tangling of intracellular neurofibrils, and synaptic and neuronal loss in the brain. Multiple evidence directly indicates that oxidative stress participates in an early phase of AD before cytopathology. Moreover, oxidative stress is induced by almost all misfolded protein lumps like α-synuclein, amyloid-β, and others. Oxidative stress plays a crucial role in activating and causing various cell signaling pathways that result in lesion formations of toxic substances, which foster the development of the disease. Antioxidants are widely preferred to combat oxidative stress, and those derived from natural sources, which are often incorporated into dietary habits, can play an important role in delaying the onset as well as reducing the progression of AD. However, this approach has not been extensively explored yet. Moreover, there has been growing evidence that a combination of antioxidants in conjugation with a nutrient-rich diet might be more effective in tackling AD pathogenesis. Thus, considering the above-stated fact, this comprehensive review aims to elaborate the basics of AD and antioxidants, including the vitality of antioxidants in AD. Moreover, this review may help researchers to develop effectively and potentially improved antioxidant therapeutic strategies for this disease as it also deals with the clinical trials in the stated field.
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Neuronal ROS-induced glial lipid droplet formation is altered by loss of Alzheimer's disease-associated genes. Proc Natl Acad Sci U S A 2021; 118:2112095118. [PMID: 34949639 PMCID: PMC8719885 DOI: 10.1073/pnas.2112095118] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/11/2021] [Indexed: 01/02/2023] Open
Abstract
A growing list of Alzheimer's disease (AD) genetic risk factors is being identified, but the contribution of each variant to disease mechanism remains largely unknown. We have previously shown that elevated levels of reactive oxygen species (ROS) induces lipid synthesis in neurons leading to the sequestration of peroxidated lipids in glial lipid droplets (LD), delaying neurotoxicity. This neuron-to-glia lipid transport is APOD/E-dependent. To identify proteins that modulate these neuroprotective effects, we tested the role of AD risk genes in ROS-induced LD formation and demonstrate that several genes impact neuroprotective LD formation, including homologs of human ABCA1, ABCA7, VLDLR, VPS26, VPS35, AP2A, PICALM, and CD2AP Our data also show that ROS enhances Aβ42 phenotypes in flies and mice. Finally, a peptide agonist of ABCA1 restores glial LD formation in a humanized APOE4 fly model, highlighting a potentially therapeutic avenue to prevent ROS-induced neurotoxicity. This study places many AD genetic risk factors in a ROS-induced neuron-to-glia lipid transfer pathway with a critical role in protecting against neurotoxicity.
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Çınar E, Başaran E, Erdoğan Ö, Çakmak R, Boğa M, Çevik Ö. Heterocyclic Schiff base derivatives containing pyrazolone moiety: Synthesis, characterization, and in vitro biological studies. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100357] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ercan Çınar
- Department of Nursing, Faculty of Health Sciences Batman University Batman Turkey
| | - Eyüp Başaran
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences Batman University Batman Turkey
| | - Ömer Erdoğan
- Department of Biochemistry, Faculty of Medicine Adnan Menderes University Aydın Turkey
| | - Reşit Çakmak
- Medical Laboratory Techniques Program, Vocational School of Health Services Batman University Batman Turkey
| | - Mehmet Boğa
- Department of Analytical Chemistry, Faculty of Pharmacy Dicle University Diyarbakır Turkey
| | - Özge Çevik
- Department of Biochemistry, Faculty of Medicine Adnan Menderes University Aydın Turkey
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Silva C, Pinto M, Fernandes C, Benfeito S, Borges F. Antioxidant Therapy and Neurodegenerative Disorders: Lessons From Clinical Trials. SYSTEMS MEDICINE 2021. [DOI: 10.1016/b978-0-12-801238-3.11611-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Adeowo FY, Lawal MM, Kumalo HM. Design and Development of Cholinesterase Dual Inhibitors towards Alzheimer's Disease Treatment: A Focus on Recent Contributions from Computational and Theoretical Perspective. ChemistrySelect 2020. [DOI: 10.1002/slct.202003573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fatima Y. Adeowo
- Discipline of Medical Biochemistry School of Laboratory Medicine and Medical Science University of KwaZulu-Natal Durban 4001 South Africa
| | - Monsurat M. Lawal
- Discipline of Medical Biochemistry School of Laboratory Medicine and Medical Science University of KwaZulu-Natal Durban 4001 South Africa
| | - Hezekiel M. Kumalo
- Discipline of Medical Biochemistry School of Laboratory Medicine and Medical Science University of KwaZulu-Natal Durban 4001 South Africa
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Adeowo FY, Ejalonibu MA, Elrashedy AA, Lawal MM, Kumalo HM. Multi-target approach for Alzheimer's disease treatment: computational biomolecular modeling of cholinesterase enzymes with a novel 4- N-phenylaminoquinoline derivative reveal promising potentials. J Biomol Struct Dyn 2020; 39:3825-3841. [PMID: 33030113 DOI: 10.1080/07391102.2020.1826129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The identification of dual inhibitors targeting the active sites of the cholinesterase enzymes, acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE), have lately surfaced as a multi-approach towards Alzheimer treatment. More recently, a novel series of 4-N-phenylaminoquinolines was synthesized and evaluated against AChE and BuChE in which one of the compounds displayed appreciable inhibition compared to the standard compound, galantamine. To provide a clearer picture of the inhibition mechanism of this potent compound at the molecular level, computational biomolecular modeling was carried out. The investigation was initiated with the exploration of the chemical properties of the identified compound 11 b and reference drug, galantamine. Density functional theory (DFT) calculations reveal some conceptual parameters that provide information on the stability and reactivity of the compounds as potential inhibitors. To unveil the binding mechanism, energetics and enzyme-ligand interactions, molecular dynamics (MD) simulations of six different systems were executed over a period. Calculated binding free energy values are in the same order with experimental IC50 data. Identification of the main residues driving optimum binding of the active compound 11 b to the binding region of both AChE and BuChE showed Trp81 and Trp110 as the most important, respectively. It was proposed that the studied compound could serve as a dual inhibitor for AChE and BuChE, therefore, would potentially be a promising moiety in a multi-target approach for the treatment of Alzheimer's disorder.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Fatima Y Adeowo
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban, South Africa
| | - Murtala A Ejalonibu
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban, South Africa
| | - Ahmed A Elrashedy
- Molecular Bio-computational and Drug Design Research Group, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Monsurat M Lawal
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban, South Africa
| | - Hezekiel M Kumalo
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban, South Africa
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14
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Mekky AEM, Sanad SMH. Synthesis and in vitro study of new coumarin derivatives linked to nicotinonitrile moieties as potential acetylcholinesterase inhibitors. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4134] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ahmed E. M. Mekky
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
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15
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Smach MA, Hafsa J, Charfeddine B, Dridi H, Limem K, Jihene BA. Arthrophytum scoparium Extract Improves Memory Impairment and Affects Acetylcholinesterase Activity In Mice Brain. Curr Pharm Biotechnol 2020; 21:480-487. [PMID: 31793419 DOI: 10.2174/1389201020666191202142226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 09/10/2019] [Accepted: 11/14/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Arthrophytum scoparium (Pomel) Iljin (Amaranthaceae family) has been widely used in traditional Tunisian medicine to treat many disorders such as migraine, headache, and neurological disorders. This study investigates the effect of Arthrophytum scoparium Aqueous Extract (ASAE) on cognitive impairments and oxidative injury induced by galactose (10%) in a mouse model. MATERIALS AND METHODS The mice were divided randomly into 4 experimental groups, including the control group (saline water 9 ‰), Galactose group, Scop group (300 mg/kg/d), and Scop+Gal group (300 mg/kg/d). Mice received the corresponding solutions by intraperitoneal injection (i.p.) for 7 days before the Y-maze active tests. Galactose 10% was given to all groups except control and Scop groups, 30 min before the trial. Levels of Acetylcholinesterase Activity (AChE), Ascorbic Acid (AA), Gluthatione (GSH) and Malondialdehyde (MDA) in mice brains were examined. RESULTS Chronic administration of galactose significantly impaired cognitive performance in Y maze, caused marked oxidative damages and a significant increase in the acetylcholinesterase activity as compared to other groups. On the contrary, ASAE (300 mg/kg) treatment suppressed galactoseinduced oxidative damage by ameliorating the increased levels of GSH and AA. Moreover, ASAE treatment reduced brain AChE activities in the galactose-induced model. CONCLUSION These findings suggest that ASAE exerts potent anti-amnesic effects via the modulation of cholinergic and antioxidant activities. The observed pharmacological activities should be further evaluated by detailed experimental studies and validated by clinical trials.
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Affiliation(s)
- Med A Smach
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse 4002, Tunisia
| | - Jawhar Hafsa
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse 4002, Tunisia.,AgroBiosciences Research Division, Mohamed VI Polytechnic University, lot 660- Hay Moulay Rachid, ben-Guerir 43150, Morocco
| | - Bassem Charfeddine
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse 4002, Tunisia
| | - Hedi Dridi
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse 4002, Tunisia
| | - Khalifa Limem
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse 4002, Tunisia
| | - Ben A Jihene
- Department of Biochemistry, Faculty of Medicine Sousse, University of Sousse, Sousse 4002, Tunisia
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16
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Synthesis, crystal structure, biological evaluation, docking study, and DFT calculations of 1-amidoalkyl-2-naphthol derivative. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Abstract
The joint attack on the body by metabolic acidosis and oxidative stress suggests that treatment in degenerative diseases, including Alzheimer's disease (AD), may require a normalizing of extracellular and intracellular pH with simultaneous supplementation of an antioxidant combination cocktail at a sufficiently high dose. Evidence is also accumulating that combinations of antioxidants may be more effective, taking advantage of synergistic effects of appropriate antioxidants as well as a nutrient-rich diet to prevent and reverse AD. This review focuses on nutritional, nutraceutical and antioxidant treatments of AD, although they can also be used in other chronic degenerative and neurodegenerative diseases.
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Affiliation(s)
- Gerald Veurink
- Naturels, Armadale, Western Australia, Australia.,Department of Surgery, University of Western Australia, Perth, Australia.,Indian Scientific Education and Technology Foundation, Lucknow 226002, India
| | - George Perry
- Department of Biology, The University of Texas at San Antonio, San Antonio, TX, USA
| | - Sandeep Kumar Singh
- Indian Scientific Education and Technology Foundation, Lucknow 226002, India.,Centre of Biomedical Research, SGPGI Campus, Lucknow 226014, India
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18
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Chew H, Solomon VA, Fonteh AN. Involvement of Lipids in Alzheimer's Disease Pathology and Potential Therapies. Front Physiol 2020; 11:598. [PMID: 32581851 PMCID: PMC7296164 DOI: 10.3389/fphys.2020.00598] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/14/2020] [Indexed: 12/15/2022] Open
Abstract
Lipids constitute the bulk of the dry mass of the brain and have been associated with healthy function as well as the most common pathological conditions of the brain. Demographic factors, genetics, and lifestyles are the major factors that influence lipid metabolism and are also the key components of lipid disruption in Alzheimer's disease (AD). Additionally, the most common genetic risk factor of AD, APOE ϵ4 genotype, is involved in lipid transport and metabolism. We propose that lipids are at the center of Alzheimer's disease pathology based on their involvement in the blood-brain barrier function, amyloid precursor protein (APP) processing, myelination, membrane remodeling, receptor signaling, inflammation, oxidation, and energy balance. Under healthy conditions, lipid homeostasis bestows a balanced cellular environment that enables the proper functioning of brain cells. However, under pathological conditions, dyshomeostasis of brain lipid composition can result in disturbed BBB, abnormal processing of APP, dysfunction in endocytosis/exocytosis/autophagocytosis, altered myelination, disturbed signaling, unbalanced energy metabolism, and enhanced inflammation. These lipid disturbances may contribute to abnormalities in brain function that are the hallmark of AD. The wide variance of lipid disturbances associated with brain function suggest that AD pathology may present as a complex interaction between several metabolic pathways that are augmented by risk factors such as age, genetics, and lifestyles. Herewith, we examine factors that influence brain lipid composition, review the association of lipids with all known facets of AD pathology, and offer pointers for potential therapies that target lipid pathways.
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Affiliation(s)
- Hannah Chew
- Huntington Medical Research Institutes, Pasadena, CA, United States
- University of California, Los Angeles, Los Angeles, CA, United States
| | | | - Alfred N. Fonteh
- Huntington Medical Research Institutes, Pasadena, CA, United States
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19
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Berahmand F, Anoush G, Hosseini MJ, Anoush M. Grape Seed Oil as a Natural Therapy in Male Rats with Alzheimer's Diseases. Adv Pharm Bull 2020; 10:430-436. [PMID: 32665902 PMCID: PMC7335983 DOI: 10.34172/apb.2020.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 11/14/2019] [Accepted: 01/23/2020] [Indexed: 12/13/2022] Open
Abstract
Purpose: Alzheimer's disease (AD) is a chronic neurodegenerative disorder, with an increasing prevalence rate, mostly related to cholinergic system. According to the difficulties and complications in management of AD, this study was carried out to evaluate the efficacy of grape seed oil (GSO) on scopolamine (Scop) induced Alzheimer's in male rats. Methods: 64 healthy male Wistar rats received different treatments such as: normal saline (NS), donepezil (Don), Scop and GSO, according to the previously designed protocol. Morris (MWM) was applied for spatial memory tests. Right after the behavioral tests, the brains were removed and the hippocampus was separated for evaluation of acetylcholine levels as well as cell death and neuro inflammation. Results: The results of the test day indicated that the mean Q2 time was increased in both GSO test groups (P <0.05) and Don treated group (P <0.001).The spectrophotometric findings affirm that both GSO co-treatment and post-treatment were effective in augmenting brain acetylcholine levels (P <0.01 and P <0.05 respectively). The microscopic findings of H&E dyed tissues confirmed the above mentioned results for different treatments except for GSO post treatment, in which the viability of cells were very low. Conclusion: The results implied that supplementation of rats with GSO caused a significant augmentation in spatial memory performance as well as acetylcholine levels and cell viability in the presence of Scop. This effect was comparable to that of Don especially when GSO was used as co-treatment.
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Affiliation(s)
- Farnoosh Berahmand
- Student's Research Center, Zanjan University of Medical Sciences, Zanjan, 4513956184, Iran
| | - Golnoush Anoush
- Department of Toxicology, School of Pharmacy, Azad University of Shahreza, Isfahan, 8614510311, Iran
| | - Mir-Jamal Hosseini
- Applied Pharmacology Research Center, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, 4513956184, Iran
| | - Mahdieh Anoush
- Department of Pharmacology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, 4513956184, Iran
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20
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Lahiani-Cohen I, Touloumi O, Lagoudaki R, Grigoriadis N, Rosenmann H. Exposure to 3-Nitropropionic Acid Mitochondrial Toxin Induces Tau Pathology in Tangle-Mouse Model and in Wild Type-Mice. Front Cell Dev Biol 2020; 7:321. [PMID: 32010684 PMCID: PMC6971403 DOI: 10.3389/fcell.2019.00321] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 11/21/2019] [Indexed: 01/24/2023] Open
Abstract
Oxidative stress, particularly of mitochondrial origin, plays an important role in the pathogenesis of neurodegenerative disorders, including Alzheimer’s disease (AD) and other tauopathies. Controversies regarding the responses of tau phosphorylation state to various stimuli causing oxidative stress have been reported. Here we investigated the effect of 3-nitropropionic acid (3NP), a mitochondrial toxin which induces oxidative stress, on the tangle-pathology in our previously generated double mutant (E257T/P301S, DM) -Tau-tg mice and in WT-mice. We detected an increase in tangle pathology in the hippocampus and cortex of the DM-Tau-tg mice following exposure of the mice to the toxin, as well as generation of tangles in WT-mice. This increase was accompanied with alterations in the level of the glycogen synthase kinase 3β (GSK3β), the kinase which phosphorylates the tau protein, and in the phosphorylation state of this kinase. A response of microglial cells was noticed. These results point to the involvement of mitochondrial dysfunction in the development of the tangle-pathology and may suggest that interfering with mitochondrial dysfunction may have an anti-tangle therapeutic potential.
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Affiliation(s)
- Inbal Lahiani-Cohen
- The Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Olga Touloumi
- B' Department of Neurology, AHEPA University Hospital, Thessaloniki, Greece
| | - Roza Lagoudaki
- B' Department of Neurology, AHEPA University Hospital, Thessaloniki, Greece
| | | | - Hanna Rosenmann
- The Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah Hebrew University Medical Center, Jerusalem, Israel
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21
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Acetylcholine and acetylcholinesterase inhibitors detection using gold nanoparticles coupled with dynamic light scattering. SENSORS INTERNATIONAL 2020. [DOI: 10.1016/j.sintl.2020.100007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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22
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In-vitro studies of curcumin encapsulated mesoporous Fe-Phenanthroline nanocluster for reduction of amyloid β plaque. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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van den Brink AC, Brouwer-Brolsma EM, Berendsen AAM, van de Rest O. The Mediterranean, Dietary Approaches to Stop Hypertension (DASH), and Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) Diets Are Associated with Less Cognitive Decline and a Lower Risk of Alzheimer's Disease-A Review. Adv Nutr 2019; 10:1040-1065. [PMID: 31209456 PMCID: PMC6855954 DOI: 10.1093/advances/nmz054] [Citation(s) in RCA: 260] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 02/23/2019] [Accepted: 04/28/2019] [Indexed: 02/07/2023] Open
Abstract
As there is currently no cure for dementia, there is an urgent need for preventive strategies. The current review provides an overview of the existing evidence examining the associations of the Mediterranean, Dietary Approaches to Stop Hypertension (DASH), and Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diets and their dietary components with cognitive decline, dementia, and Alzheimer's disease (AD). A systematic search was conducted within Ovid Medline for studies published up to 27 March 2019 and reference lists from existing reviews and select articles were examined to supplement the electronic search results. In total, 56 articles were included. Higher adherence to the Mediterranean diet was associated with better cognitive scores in 9 of 12 cross-sectional studies, 17 of 25 longitudinal studies, and 1 of 3 trials. Higher adherence to the DASH diet was associated with better cognitive function in 1 cross-sectional study, 2 of 5 longitudinal studies, and 1 trial. Higher adherence to the MIND diet was associated with better cognitive scores in 1 cross-sectional study and 2 of 3 longitudinal studies. Evidence on the association of these dietary patterns with dementia in general was limited. However, higher adherence to the Mediterranean diet was associated with a lower risk of AD in 1 case-control study and 6 of 8 longitudinal studies. Moreover, higher adherence to the DASH or MIND diets was associated with a lower AD risk in 1 longitudinal study. With respect to the components of these dietary patterns, olive oil may be associated with less cognitive decline. In conclusion, current scientific evidence suggests that higher adherence to the Mediterranean, DASH, or MIND diets is associated with less cognitive decline and a lower risk of AD, where the strongest associations are observed for the MIND diet.
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Affiliation(s)
| | | | - Agnes A M Berendsen
- Division of Human Nutrition and Health, Wageningen University, Wageningen, Netherlands
| | - Ondine van de Rest
- Division of Human Nutrition and Health, Wageningen University, Wageningen, Netherlands
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24
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Mir NT, Saleem U, Anwar F, Ahmad B, Ullah I, Hira S, Ismail T, Ali T, Ayaz M. Lawsonia Inermis Markedly Improves Cognitive Functions in Animal Models and Modulate Oxidative Stress Markers in the Brain. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:E192. [PMID: 31121979 PMCID: PMC6571555 DOI: 10.3390/medicina55050192] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 04/25/2019] [Accepted: 05/21/2019] [Indexed: 01/08/2023]
Abstract
Background and Objective: Medicinal plants represent an important source of alternative medicine for the management of various diseases. The present study was undertaken to assess the potential of Lawsonia inermis ethanol (Li.Et) and chloroform (Li.Chf) extracts as memory-enhancing agents in experimental animals. Materials and Methods: Li.Et and Li.Chf were phytochemically characterized via gas chromatography-mass spectroscopy (GC-MS). Samples were tested for nootropic potentials at doses of 25, 50, 100, 200 mg/kg (per oral in experimental animals (p.o.)). Swiss albino mice of either sex (n = 210) were divided into 21 × 10 groups for each animal model. Memory-enhancing potentials of the samples were assessed using two methods including "without inducing amnesia" and "induction of amnesia" by administration of diazepam (1 mg/kg, intraperitoneally. Piracetam at 400 mg/kg (i.p.) was used as positive control. Cognitive behavioral models including elevated plus maze (EPM) and the passive shock avoidance (PSA) paradigm were used. Biochemical markers of oxidative stress such as glutathione (GSH), catalase (CAT), superoxide dismutase (SOD) levels were analyzed in the brain tissue of treated mice. Results: In 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radicals scavenging assay, Li.Et and Li.Chf exhibited 70.98 ± 1.56 and 66.99 ± 1.76% inhibitions respectively at 1.28 mg/mL concentration. GCMS results revealed the presence of important phytochemicals. Both samples (Li.Et and Li.Chf) at 25 mg/kg (p.o.) dose significantly (p < 0.05) improved learning and memory as indicated by decline in transfer latency and increase in step down latency in EPM and PSA models respectively. Li.Et and Li.Chf at 25 mg/kg (p.o.) showed considerable increase in GSH (2.75 ± 0.018 ***), SOD (2.61 ± 0.059 ***) and CAT (2.71 ± 0.049 ***) levels as compared to positive and negative control groups. Conclusions: This study provides the preliminary clue that L. inermis may be a potential source of memory-enhancing and anti-oxidant compounds and thus warrant further studies.
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Affiliation(s)
- Numra Tariq Mir
- Riphah Institute of Pharmaceutical Sciences, Lahore Campus, Lahore 54000, Pakistan.
| | - Uzma Saleem
- Faculty of Pharmaceutical Sciences, College of Pharmacy, Government College University, Faisalabad 38000, Pakistan.
| | - Fareeha Anwar
- Riphah Institute of Pharmaceutical Sciences, Lahore Campus, Lahore 54000, Pakistan.
| | - Bashir Ahmad
- Riphah Institute of Pharmaceutical Sciences, Lahore Campus, Lahore 54000, Pakistan.
| | - Izhar Ullah
- Department of Pharmacy, Faculty of Medical and Health Sciences, University of Poonch, Rawalakot 12420, Pakistan.
| | - Sundas Hira
- Riphah Institute of Pharmaceutical Sciences, Lahore Campus, Lahore 54000, Pakistan.
| | - Tariq Ismail
- Department of Pharmacy, Commission on Science and Technology for Sustainable Development in the South (COMSAT), Institute of Information Technology, Abbottabad 22060, Pakistan.
| | - Tahir Ali
- Riphah Institute of Pharmaceutical Sciences, Lahore Campus, Lahore 54000, Pakistan.
| | - Muhammad Ayaz
- Department of Pharmacy, University of Malakand, Khyber Pakhtunkhwa 18800, Pakistan.
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Development and Characterization of Liposomal Formulations Containing Phytosterols Extracted from Canola Oil Deodorizer Distillate along with Tocopherols as Food Additives. Pharmaceutics 2019; 11:pharmaceutics11040185. [PMID: 30995762 PMCID: PMC6523737 DOI: 10.3390/pharmaceutics11040185] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/02/2019] [Accepted: 04/09/2019] [Indexed: 11/17/2022] Open
Abstract
Phytosterols are plant sterols recommended as adjuvant therapy for hypercholesterolemia and tocopherols are well-established anti-oxidants. However, thermo-sensitivity, lipophilicity and formulation-dependent efficacy bring challenges in the development of functional foods, enriched with phytosterols and tocopherols. To address this, we developed liposomes containing brassicasterol, campesterol and β-sitosterol obtained from canola oil deodorizer distillate, along with alpha, gamma and delta tocopherol. Three approaches; thin film hydration-homogenization, thin film hydration-ultrasonication and Mozafari method were used for formulation. Validated liquid chromatographic tandem mass spectrometry (LC-MS/MS) was utilized to determine the entrapment efficiency of bioactives. Stability studies of liposomal formulations were conducted before and after pasteurization using high temperature short time (HTST) technique for a month. Vesicle size after homogenization and ultrasonication (<200 nm) was significantly lower than by Mozafari method (>200 nm). However, zeta potential (-9 to -14 mV) was comparable which was adequate for colloidal stability. Entrapment efficiencies were greater than 89% for all the phytosterols and tocopherols formulated by all three methods. Liposomes with optimum particle size and zeta potential were incorporated in model orange juice, showing adequate stability after pasteurization (72 °C for 15 s) for a month. Liposomes containing phytosterols obtained from canola waste along with tocopherols were developed and successfully applied as a food additive using model orange juice.
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Zhang L, Chen J. Biological Effects of Tetrahydroxystilbene Glucoside: An Active Component of a Rhizome Extracted from Polygonum multiflorum. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:3641960. [PMID: 30524653 PMCID: PMC6247474 DOI: 10.1155/2018/3641960] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/08/2018] [Accepted: 10/23/2018] [Indexed: 12/16/2022]
Abstract
Polygonum multiflorum Thunb. (PM), a traditional Chinese medicinal herb, has been widely used in the Orient as a tonic and antiaging agent. 2,3,5,4'-Tetrahydroxystilbene-2-O-β-D-glucoside (TSG, C20H22O9, FW = 406.38928) is one of the active components extracted from PM. TSG is an antioxidant agent, which exhibits remarkable antioxidative activities in vivo and in vitro. The antioxidant effect of TSG is achieved by its radical-scavenging effects. TSG can inhibit apoptosis and protect neuronal cells against injury through multifunctional cytoprotective pathways. TSG performs prophylactic and therapeutic activities against Alzheimer's disease, Parkinson's disease, and cerebral ischemia/reperfusion injury. It is also antiatherosclerotic and anti-inflammatory. However, the mechanisms underlying these pharmacological activities are unclear. This study aimed at reviewing experimental studies and describing the effectiveness and possible mechanisms of TSG.
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Affiliation(s)
- Lingling Zhang
- Translational Medicine Center, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - Jianzong Chen
- Traditional Chinese Medicine Department, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
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27
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Assad T, Khan RA, Rajput MA. Effect of Trigonella foenum-graecum Linn. seeds methanol extract on learning and memory. Metab Brain Dis 2018; 33:1275-1280. [PMID: 29681009 DOI: 10.1007/s11011-018-0235-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 04/06/2018] [Indexed: 10/17/2022]
Abstract
Prevention and delay in the onset of memory disorders will have a great impact on society by reducing the disease burden and finances. Drugs available for the treatment of learning and memory disorders are few. There is need to develop a better drug, several studies have shown the therapeutic effectiveness of herbal extracts for the learning and memory disorders because of their neuroprotective effects, hence herbs should be evaluated scientifically to form a basis for the future discovery of newer drugs. In this study, effect of Trigonella-foenum graecum L. seeds methanol extract (TFGS-ME) was evaluated in mice on learning and memory process by both exteroceptive and interoceptive behavioral models at three different doses. Elevated plus maze test was employed to assess the effect on learning and memory as an exteroceptive behavioral test. Scopolamine-induced amnesia was performed to assess effect on learning and memory as interoceptive behavior test. In both tests, it was found that animals received extract at 200 mg/kg exhibited a highly noteworthy decline in transfer latency on both acquisition and retention days in contrast to control animals, suggestive of improved learning and memory process. Results were equivalent to the standard drug piracetam at similar dose indicating that TFGS-ME improves learning and memory process and has significant potential as an antiamnesic agent. Hence there is need to separate the dietary components which may play a vibrant role in the future invention of novel drugs.
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Affiliation(s)
- Tahira Assad
- CMH, Karachi Institute of Medical Sciences, Malir Cantonment, Karachi, Pakistan
| | - Rafeeq Alam Khan
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan.
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Singhrang N, Tocharus C, Thummayot S, Sutheerawattananonda M, Tocharus J. Protective effects of silk lutein extract from Bombyx mori cocoons on β-Amyloid peptide-induced apoptosis in PC12 cells. Biomed Pharmacother 2018; 103:582-587. [DOI: 10.1016/j.biopha.2018.04.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 04/06/2018] [Accepted: 04/06/2018] [Indexed: 10/17/2022] Open
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He Y, Jia K, Li L, Wang Q, Zhang S, Du J, Du H. Salvianolic acid B attenuates mitochondrial stress against Aβ toxicity in primary cultured mouse neurons. Biochem Biophys Res Commun 2018; 498:1066-1072. [DOI: 10.1016/j.bbrc.2018.03.119] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 03/14/2018] [Indexed: 01/26/2023]
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30
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Piperlongumine activates Sirtuin1 and improves cognitive function in a murine model of Alzheimer’s disease. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.02.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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31
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Cognitive enhancement in old dogs from dietary supplementation with a nutrient blend containing arginine, antioxidants, B vitamins and fish oil. Br J Nutr 2018; 119:349-358. [DOI: 10.1017/s0007114517003464] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractThis study focused on the hypothesis that cognitive decline in aged dogs could be attenuated by dietary supplementation with a nutrient blend consisting of antioxidants, B vitamins, fish oil and l-arginine, referred to hereafter as the Brain Protection Blend (BPB). Baseline cognitive assessment before the start of treatment was used to establish cognitively equivalent control (10·464+2·33 kg) and treatment (12·118+3·386 kg) groups of aged dogs between 9·1 and 11·5 years of age and with body condition score of 5. After an initial wash-in period, all dogs were tested over a 6-month period on cognitive test protocols that assessed four phases of a landmark discrimination learning protocol, which assessed a spatial learning skill based on utilisation of external cues, and egocentric discrimination task, which assessed spatial learning based on internal body-centred cues. The BPB-supplemented group showed significantly better performance than the controls on the landmark 1 (P=0·0446) discrimination learning tasks, and on two egocentric discrimination reversal learning tasks (P=0·005 and P=0·01, respectively). The groups did not differ significantly (P>0·10) on the landmark zero discrimination task and the egocentric discrimination learning task. These results suggest beneficial effects are positively linked to task complexity. Many of the nutrients supplemented in the BPB diet were significantly higher in plasma, including arginine, α-tocopherol, DHA and EPA. These results indicate that long-term supplementation with the BPB can have cognition-improving effects and support the use of nutritional strategies in targeting brain ageing-associated risk factors as an intervention to delay cognitive ageing.
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Du J, Zhu M, Bao H, Li B, Dong Y, Xiao C, Zhang GY, Henter I, Rudorfer M, Vitiello B. The Role of Nutrients in Protecting Mitochondrial Function and Neurotransmitter Signaling: Implications for the Treatment of Depression, PTSD, and Suicidal Behaviors. Crit Rev Food Sci Nutr 2017; 56:2560-2578. [PMID: 25365455 DOI: 10.1080/10408398.2013.876960] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Numerous studies have linked severe stress to the development of major depressive disorder (MDD) and suicidal behaviors. Furthermore, recent preclinical studies from our laboratory and others have demonstrated that in rodents, chronic stress and the stress hormone cortisol cause oxidative damage to mitochondrial function and membrane lipids in the brain. Mitochondria play a key role in synaptic neurotransmitter signaling by providing adenosine triphosphate (ATP), mediating lipid and protein synthesis, buffering intracellular calcium, and regulating apoptotic and resilience pathways. Membrane lipids are similarly essential to central nervous system (CNS) function because cholesterol, polyunsaturated fatty acids, and sphingolipids form a lipid raft region, a special lipid region on the membrane that mediates neurotransmitter signaling through G-protein-coupled receptors and ion channels. Low serum cholesterol levels, low antioxidant capacity, and abnormal early morning cortisol levels are biomarkers consistently associated with both depression and suicidal behaviors. In this review, we summarize the manner in which nutrients can protect against oxidative damage to mitochondria and lipids in the neuronal circuits associated with cognitive and affective behaviors. These nutrients include ω3 fatty acids, antioxidants (vitamin C and zinc), members of the vitamin B family (Vitamin B12 and folic acid), and magnesium. Accumulating data have shown that these nutrients can enhance neurocognitive function, and may have therapeutic benefits for depression and suicidal behaviors. A growing body of studies suggests the intriguing possibility that regular consumption of these nutrients may help prevent the onset of mood disorders and suicidal behaviors in vulnerable individuals, or significantly augment the therapeutic effect of available antidepressants. These findings have important implications for the health of both military and civilian populations.
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Affiliation(s)
- Jing Du
- a School of Medicine, Yunnan University , Kunming , Yunnan , China.,c Laboratory of Molecular Pathophysiology, Intramural Research Program, NIMH, NIH , Bethesda , Maryland , USA
| | - Ming Zhu
- a School of Medicine, Yunnan University , Kunming , Yunnan , China
| | - Hongkun Bao
- a School of Medicine, Yunnan University , Kunming , Yunnan , China
| | - Bai Li
- a School of Medicine, Yunnan University , Kunming , Yunnan , China
| | - Yilong Dong
- a School of Medicine, Yunnan University , Kunming , Yunnan , China
| | - Chunjie Xiao
- a School of Medicine, Yunnan University , Kunming , Yunnan , China
| | - Grace Y Zhang
- c Laboratory of Molecular Pathophysiology, Intramural Research Program, NIMH, NIH , Bethesda , Maryland , USA
| | - Ioline Henter
- d Molecular Imaging Branch, Intramural Research Program, NIMH, NIH , Bethesda , Maryland , USA
| | - Matthew Rudorfer
- b Division of Service and Intervention Research, NIMH, NIH , Rockville , Maryland , USA
| | - Benedetto Vitiello
- b Division of Service and Intervention Research, NIMH, NIH , Rockville , Maryland , USA
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Park TS, Ryu YK, Park HY, Kim JY, Go J, Noh JR, Kim YH, Hwang JH, Choi DH, Oh WK, Lee CH, Kim KS. Humulus japonicus inhibits the progression of Alzheimer's disease in a APP/PS1 transgenic mouse model. Int J Mol Med 2016; 39:21-30. [PMID: 28004107 PMCID: PMC5179182 DOI: 10.3892/ijmm.2016.2804] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 11/04/2016] [Indexed: 12/12/2022] Open
Abstract
Humulus japonicus Siebold & Zucc. (HJ) has traditionally been administered to patients with pulmonary disease, skin disease and hypertension in Korea, and it is considered to exert anti-inflammatory, antioxidant, antimicrobial and anti-mycobacterial effects. However, its effects against Alzheimer's disease (AD) have yet to be explored. Thus, this study was carried out to investigate whether HJ has a beneficial effect on the progression of AD in an animal model. A methanolic extract of HJ (500 mg/kg/day) was intragastrically administered to 5-month-old APP/PS1 transgenic (Tg-APP/PS1) mice for 2.5 months. Novel object recognition and Y-maze alteration tests were used to assess cognitive function, and an immunohistochemical assay was performed to assess amyloid β (Aβ) deposition, tau phosphorylation and gliosis. An in vitro assay using a microglial cell line was also performed to investigate the anti-inflammatory effects of HJ. Our results revealed that HJ significantly decreased the mRNA and protein expression levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6 and inducible nitric oxide synthase (iNOS) induced by lipopolysaccharide in the microglial cell line. The administration of HJ for 2 months improved the cognitive function of Tg-APP/PS1 mice. HJ notably reduced the area occupied by Aβ and neurofibrillary tangles, and the number of activated astrocytes and microglia in the cortex of Tg-APP/PS1 mice. The findings of our study suggest that HJ has the therapeutic potential to inhibit the progression of AD and to improve cognitive deterioration in Tg-APP/PS1 mice.
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Affiliation(s)
- Tae-Shin Park
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Young-Kyoung Ryu
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Hye-Yeon Park
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Jae Yun Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Jun Go
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Jung-Ran Noh
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Yong-Hoon Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Jung Hwan Hwang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Dong-Hee Choi
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Won-Keun Oh
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Chul-Ho Lee
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
| | - Kyoung-Shim Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
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Zaiter A, Becker L, Petit J, Zimmer D, Karam MC, Baudelaire É, Scher J, Dicko A. Antioxidant and antiacetylcholinesterase activities of different granulometric classes of Salix alba (L.) bark powders. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.07.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Neuroprotective Effects of the Herbal Formula B401 in Both Cell and Mouse Models of Alzheimer's Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:1939052. [PMID: 27761145 PMCID: PMC5059538 DOI: 10.1155/2016/1939052] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 07/26/2016] [Indexed: 11/27/2022]
Abstract
In this study, we have reported the herbal formula B401 that has neuroprotective effects via multifunction, multitarget characteristics. It is possible that the herbal formula B401 may also provide new insights for AD. Here, we studied protective effects in the Tet-On Aβ42-GFP SH-SY5Y cell model and the APP/PS1/Tau triple transgenic mouse model by the herbal formula B401. In in vitro experiments, we showed that the herbal formula B401 treatment effectively reduces glutamate-induced excitotoxicity and acetylcholinesterase activity in Tet-On Aβ42-GFP SH-SY5Y cells. In in vivo experiments, we found that oral B401 treatment effectively ameliorates neurocognitive dysfunctions of 3× Tg-AD mice via motor and cognitive behavior tests. By using magnetic resonance imaging, moorFLPI instruments, and chemiluminescence methods, we reported that oral B401 treatment effectively alleviates brain atrophy, improves subcutaneous blood flow, and reduces blood ROS in 3× Tg-AD mice. As observed from results of immunohistochemistry staining and western blotting, we found that oral B401 treatment significantly enhances expressions of neuroprotective proteins, while reducing expressions of AD derived proteins such as amyloid beta, phosphorylated Tau, neurofibrillary tangles, and 3-nitrotyrosine in the brain of 3× Tg-AD mice. Thus, the herbal formula B401 may have the potential to be developed into optimum TCM for AD patients.
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Jaiswal M, Kumar A, Sharma S. Nanoemulsions loaded Carbopol® 934 based gel for intranasal delivery of neuroprotective Centella asiatica extract: in–vitro and ex–vivo permeation study. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2016. [DOI: 10.1007/s40005-016-0228-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wojtunik-Kulesza KA, Oniszczuk A, Oniszczuk T, Waksmundzka-Hajnos M. The influence of common free radicals and antioxidants on development of Alzheimer's Disease. Biomed Pharmacother 2016; 78:39-49. [PMID: 26898423 DOI: 10.1016/j.biopha.2015.12.024] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 12/18/2015] [Accepted: 12/21/2015] [Indexed: 11/18/2022] Open
Abstract
Alzheimer's Disease (AD) is one of the most important neurodegenerative disorders in the 21st century for the continually aging population. Despite an increasing number of patients, there are only few drugs to treat the disease. Numerous studies have shown several causes of the disorder, one of the most important being oxidative stress. Oxidative stress is connected with a disturbance between the levels of free radicals and antioxidants in organisms. Solutions to this problem are antioxidants, which counteract the negative impact of the reactive molecules. Unfortunately, the currently available drugs against AD do not exhibit activity toward these structures. Due to the fact that natural substances are extremely significant in new drug development, numerous studies are focused on substances which exhibit a few activities including antioxidants and other anti-AD behaviors. This review article presents the most important studies connected with the influence of free radicals on development of AD and antioxidants as potential drugs toward AD.
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Affiliation(s)
| | - Anna Oniszczuk
- Department of Inorganic Chemistry, Medical University of Lublin, Chodzki 4a, 20-093 Lublin, Poland.
| | - Tomasz Oniszczuk
- Department of Food Process Engineering, Lublin University of Life Sciences, 44 Doświadczalna Street, 20-236 Lublin, Poland.
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Chiurchiù V, Orlacchio A, Maccarrone M. Is Modulation of Oxidative Stress an Answer? The State of the Art of Redox Therapeutic Actions in Neurodegenerative Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:7909380. [PMID: 26881039 PMCID: PMC4736210 DOI: 10.1155/2016/7909380] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 10/18/2015] [Indexed: 12/11/2022]
Abstract
The central nervous system is particularly sensitive to oxidative stress due to many reasons, including its high oxygen consumption even under basal conditions, high production of reactive oxygen and nitrogen species from specific neurochemical reactions, and the increased deposition of metal ions in the brain with aging. For this reason, along with inflammation, oxidative stress seems to be one of the main inducers of neurodegeneration, causing excitotoxicity, neuronal loss, and axonal damage, ultimately being now considered a key element in the onset and progression of several neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, multiple sclerosis, and hereditary spastic paraplegia. Thus, the present paper reviews the role of oxidative stress and of its mechanistic insights underlying the pathogenesis of these neurodegenerative diseases, with particular focus on current studies on its modulation as a potential and promising therapeutic strategy.
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Affiliation(s)
- Valerio Chiurchiù
- School of Medicine and Center of Integrated Research, Campus Bio-Medico University of Rome, Rome, Italy
- European Center for Brain Research (CERC), Laboratory of Neurochemistry of Lipids, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Antonio Orlacchio
- European Center for Brain Research (CERC), Laboratory of Neurogenetics, IRCCS Santa Lucia Foundation, Rome, Italy
- Department of System Medicine, University of Rome “Tor Vergata”, Rome, Italy
| | - Mauro Maccarrone
- School of Medicine and Center of Integrated Research, Campus Bio-Medico University of Rome, Rome, Italy
- European Center for Brain Research (CERC), Laboratory of Neurochemistry of Lipids, IRCCS Santa Lucia Foundation, Rome, Italy
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Clementi ME, Tringali G, Triggiani D, Giardina B. Aloe arborescens Extract Protects IMR-32 Cells against Alzheimer Amyloid Beta Peptide via Inhibition of Radical Peroxide Production. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501001147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Aloe arborescens is commonly used as a pharmaceutical ingredient for its effect in burn treatment and ability to increase skin wound healing properties. Besides, it is well known to have beneficial phytotherapeutic, anticancer, and radio-protective properties. In this study, we first provided evidence that A. arborescens extract protects IMR32, a neuroblastoma human cellular line, from toxicity induced by beta amyloid, the peptide responsible for Alzheimer's disease. In particular, pretreatment with A. arborescens maintains an elevated cell viability and exerts a protective effect on mitochondrial functionality, as evidenced by oxygen consumption experiments. The protective mechanism exerted by A. arborescens seems be related to lowering of oxidative potential of the cells, as demonstrated by the ROS measurement compared with the results obtained in the presence of amyloid beta (1–42) peptide alone. Based on these preliminary observations we suggest that use of A. arborescens extract could be developed as agents for the management of AD.
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Affiliation(s)
- Maria Elisabetta Clementi
- CNR-ICRM Institute of “Chimica del Riconoscimento Molecolare”, c/o Institute of Biochemistry and Clinical Biochemistry, Catholic University School of Medicine Largo F. Vito 1, 00168 Rome, Italy
| | - Giuseppe Tringali
- Institute of Pharmacology, Catholic University Medical School, Largo F. Vito 1, 00168 Rome, Italy
| | - Doriana Triggiani
- Department for Innovation in Biological, Agro-food and Forest Systems (DIBAF), Tuscia University, Viterbo, Italy
| | - Bruno Giardina
- CNR-ICRM Institute of “Chimica del Riconoscimento Molecolare”, c/o Institute of Biochemistry and Clinical Biochemistry, Catholic University School of Medicine Largo F. Vito 1, 00168 Rome, Italy
- Institute of Biochemistry and Clinical Biochemistry, Catholic University School of Medicine, Largo F. Vito 1, 00168 Rome, Italy
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Keskin C. Antioxidant, Anticancer and Anticholinesterase Activities of Flower, Fruit and Seed Extracts of Hypericum amblysepalum HOCHST. Asian Pac J Cancer Prev 2015; 16:2763-9. [DOI: 10.7314/apjcp.2015.16.7.2763] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Affiliation(s)
- Michael C Woodward
- Aged & Residential Care Services; Heidelberg Repatriation Hospital; Heidelberg Victoria
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Mandegary A, Soodi M, Sharififar F, Ahmadi S. Anticholinesterase, antioxidant, and neuroprotective effects of Tripleurospermum disciforme and Dracocephalum multicaule. J Ayurveda Integr Med 2014; 5:162-6. [PMID: 25336847 PMCID: PMC4204286 DOI: 10.4103/0975-9476.140474] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Revised: 10/17/2013] [Accepted: 10/24/2013] [Indexed: 12/13/2022] Open
Abstract
Background: Nowadays, owing to medicinal plants as a candidate to obtain promising new medicinal agents, there is a renewed interest in the use of these natural sources for drug development. Objective: In the present study, we aimed to assess the anticholinesterase, antioxidant, and neuropotective effects of Tripleurospermum disciforme and Dracocephalum multicaule extracts. Materials and Methods: Methanolic extract of the plants was prepared by maceration method. Anticholinesterase effect of different concentrations of the plants was studied by colorimetric method and antioxidant activity was evaluated using diphenypicrylhydrazil (DPPH) assay. Protective effect of the extracts against amyloid β (Aβ)-induced toxicity in PC12 cells was determined by MTT (3-(4,5-dimethyl thiazol-2-yl)-2,5-diphenyl tetrazolium bromide) method. Results: Both T. disciforme and D. multicaule extracts could inhibit acetylcholinesterase (AChE) in a dose-dependent manner. The highest inhibition occurred at 5 μg/ml (71.18 ± 4.9 and 79.06 ± 3.1% inhibition respectively by T. disciforme and D. multicaule) in comparison to tacrine (86.37 ± 3.24%). The greatest DPPH inhibition of T. disciforme and D. multicaule was shown at 800 μg/ml (89.04 ± 3.9 and 78.5 ± 3.7%, respectively). None of tested extracts induced protection against βA toxicity in PC12 cell. Conclusion: Although the results indicated anticholinesterase and antioxidant of the T. disciforme and D. multicaule, further specific studies and scientific validity are needed.
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Affiliation(s)
- Ali Mandegary
- Neuroscience Research Center, Neuropharmacology Institute, Kerman University of Medical Sciences, Kerman, Iran
| | - Maliheh Soodi
- Depatment of Toxicology, Tarbiat Moddaress University, Tehran, Iran
| | - Fariba Sharififar
- Herbal and Traditional Medicines Research Center, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Samira Ahmadi
- Student Research Committee, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
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The antiacetylcholinesterase and antileishmanial activities of Canarium patentinervium Miq. BIOMED RESEARCH INTERNATIONAL 2014; 2014:903529. [PMID: 24949478 PMCID: PMC4053261 DOI: 10.1155/2014/903529] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 04/22/2014] [Indexed: 12/31/2022]
Abstract
In continuation of our natural and medicinal research programme on tropical rainforest plants, a bioassay guided fractionation of ethanolic extract of leaves of Canarium patentinervium Miq. (Burseraceae Kunth.) led to the isolation of scopoletin (1), scoparone (2), (+)-catechin (3), vomifoliol (4), lioxin (5), and syringic acid (6). All the compounds exhibited antiacetylcholinesterase activity with syringic acid, a phenolic acid exhibiting good AChE inhibition (IC50 29.53 ± 0.19 μ g/mL). All compounds displayed moderate antileishmanial activity with scopoletin having the highest antileishmanial activity (IC50 163.30 ± 0.32 μ g/mL). Given the aforementioned evidence, it is tempting to speculate that Canarium patentinervium Miq. represents an exciting scaffold from which to develop leads for treatment of neurodegenerative and parasitic diseases.
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Silva T, Reis J, Teixeira J, Borges F. Alzheimer's disease, enzyme targets and drug discovery struggles: from natural products to drug prototypes. Ageing Res Rev 2014; 15:116-45. [PMID: 24726823 DOI: 10.1016/j.arr.2014.03.008] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 03/26/2014] [Accepted: 03/31/2014] [Indexed: 12/13/2022]
Abstract
Alzheimer's disease (AD) is an incapacitating neurodegenerative disease that slowly destroys brain cells. This disease progressively compromises both memory and cognition, culminating in a state of full dependence and dementia. Currently, AD is the main cause of dementia in the elderly and its prevalence in the developed world is increasing rapidly. Classic drugs, such as acetylcholinesterase inhibitors (AChEIs), fail to decline disease progression and display several side effects that reduce patient's adhesion to pharmacotherapy. The past decade has witnessed an increasing focus on the search for novel AChEIs and new putative enzymatic targets for AD, like β- and γ-secretases, sirtuins, caspase proteins and glycogen synthase kinase-3 (GSK-3). In addition, new mechanistic rationales for drug discovery in AD that include autophagy and synaptogenesis have been discovered. Herein, we describe the state-of-the-art of the development of recent enzymatic inhibitors and enhancers with therapeutic potential on the treatment of AD.
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Affiliation(s)
- Tiago Silva
- Department of Chemistry and Biochemistry, Faculty of Sciences of Porto, Porto, Portugal
| | - Joana Reis
- Department of Chemistry and Biochemistry, Faculty of Sciences of Porto, Porto, Portugal
| | - José Teixeira
- Department of Chemistry and Biochemistry, Faculty of Sciences of Porto, Porto, Portugal
| | - Fernanda Borges
- Department of Chemistry and Biochemistry, Faculty of Sciences of Porto, Porto, Portugal.
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Pezzuto JM, Kondratyuk TP, Ogas T. Resveratrol derivatives: a patent review (2009 - 2012). Expert Opin Ther Pat 2013; 23:1529-46. [PMID: 24032623 DOI: 10.1517/13543776.2013.834888] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION There is currently a wealth of information on the effects of resveratrol and its derivatives in therapeutic, cosmetic and nutraceutical patent applications. Structure-activity studies of the resveratrol scaffold provide a foundation for the development of new analogs with potent activity or other beneficial properties. Ongoing research has yielded promising results and potential use in the treatment of various diseases. AREAS COVERED This review provides analysis of patents published from January 2009 to April 2013. There is a focus on different approaches for the production of resveratrol derivatives, combinations of new derivatives with old drugs, and applications in therapeutic areas, nutraceutical compositions and cosmetics. EXPERT OPINION The ability of resveratrol to interact with a disparate array of subcellular targets is uncanny. Nonetheless, even though limited or no toxicity is apparent, the molecule is not a panacea due to lack of potency and issues with bioavailability. Thus, as witnessed by a number of patents, a large assortment of derivatives have been synthesized under the guise of having superior characteristics for treating or preventing various diseases or for use as neutraceutics and cosmetics. Some of these suppositions are probably correct, but evidence-based applications are essentially nil due to a lack of commitment in terms of investing the resources necessary for the conduct of obligatory clinical trials. Current usage is largely based on anecdotes and publicity. Hopefully, at some point in time, it will be possible to follow a standard protocol with a predicable outcome.
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Affiliation(s)
- John M Pezzuto
- University of Hawaii at Hilo, The Daniel K. Inouye College of Pharmacy , Hilo, HI 96720 , USA
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Pochini L, Scalise M, Galluccio M, Indiveri C. OCTN cation transporters in health and disease: role as drug targets and assay development. ACTA ACUST UNITED AC 2013; 18:851-67. [PMID: 23771822 DOI: 10.1177/1087057113493006] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The three members of the organic cation transporter novel subfamily are known to be involved in interactions with xenobiotic compounds. These proteins are characterized by 12 transmembrane segments connected by nine short loops and two large hydrophilic loops. It has been recently pointed out that acetylcholine is a physiological substrate of OCTN1. Its transport could be involved in nonneuronal cholinergic functions. OCTN2 maintains the carnitine homeostasis, resulting from intestinal absorption, distribution to tissues, and renal excretion/reabsorption. OCTN3, identified only in mouse, mediates also carnitine transport. OCTN1 and OCTN2 are associated with several pathologies, such as inflammatory bowel disease, primary carnitine deficiency, diabetes, neurological disorders, and cancer, thus representing useful pharmacological targets. The function and interaction with drugs of OCTNs have been studied in intact cell systems and in proteoliposomes. The latter experimental model enables reduced interference from other transporters or enzyme pathways. Using proteoliposomes, the molecular bases of toxicity of some drugs have recently been revealed. Therefore, proteoliposomes represent a promising experimental tool suitable for large-scale molecular screening of interactions of OCTNs with chemicals regarding human health.
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Affiliation(s)
- Lorena Pochini
- Laboratory of Biochemistry and Molecular Biotechnology, Department BEST (Biologia, Ecologia, Scienze della Terra), University of Calabria, Italy
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Cho IH. Effects of Panax ginseng in Neurodegenerative Diseases. J Ginseng Res 2013; 36:342-53. [PMID: 23717136 PMCID: PMC3659610 DOI: 10.5142/jgr.2012.36.4.342] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Revised: 05/21/2012] [Accepted: 05/21/2012] [Indexed: 12/11/2022] Open
Abstract
Ginseng, the root of the Panax ginseng, has been a popular and widely-used traditional herbal medicine in Korea, China, and Japan for thousands of years. Now it has become popular as a functional health food and is used globally as a natural medicine. Evidence is accumulating in the literature on the physiological and pharmacological effects of P. ginseng on neurodegenerative diseases. Possible ginseng- or ginsenosides-mediated neuroprotective mechanisms mainly involve maintaining homeostasis, and anti-inflammatory, anti-oxidant, anti-apoptotic, and immune-stimulatory activities. This review considers publications dealing with the various actions of P. ginseng that are indicative of possible neurotherapeutic efficacies in neurodegenerative diseases and neurological disorders such as Parkinson’s disease, Alzheimer’s disease, Huntington’s disease, and amyotrophic lateral sclerosis and multiple sclerosis.
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Affiliation(s)
- Ik-Hyun Cho
- Department of Anatomy, College of Oriental Medicine and Institute of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
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Pangestuti R, Vo TS, Ngo DH, Kim SK. Fucoxanthin ameliorates inflammation and oxidative reponses in microglia. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:3876-83. [PMID: 23551304 DOI: 10.1021/jf400015k] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Alzheimer's disease (AD) is an irreversible, progressive neurodegenerative disease that slowly destroys memory and thinking skills. In the brains of AD patients, signs of neuronal degeneration are accompanied by markers of microglial activation and inflammation as well as oxidant damage. This study tested the hypothesis that fucoxanthin, which is known to exert a variety of pharmacological properties, would ameliorate oxidative stress and inflammation in amyloid-β42 (Aβ42)-induced BV2 microglia cells. It was found that fucoxanthin treatment attenuated pro-inflammatory secretion in BV2 cells as determined by ELISA analysis. Suppressive effects of fucoxanthin on the phosphorylation mitogen-activated protein kinase (MAPK) pathway were confirmed. Moreover, fucoxanthin was able to inhibit free radical-induced DNA oxidation in BV2 cells. This effect was associated with a significant reduction of intracellular reactive oxygen species (ROS) formation and recovery of antioxidative enzymes. The findings in this study suggest that fucoxanthin may serve as a negative feedback regulator of inflammation and oxidative stress in BV2 cells and thereby may protect neuronal cells from neurotoxic mediators released by microglia.
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Affiliation(s)
- Ratih Pangestuti
- Marine Bioprocess Research Center and ‡Marine Biochemistry Laboratory, Department of Chemistry, Pukyong National University , Busan 608-737, Republic of Korea
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Kim HV, Kim HY, Ehrlich HY, Choi SY, Kim DJ, Kim Y. Amelioration of Alzheimer's disease by neuroprotective effect of sulforaphane in animal model. Amyloid 2013; 20:7-12. [PMID: 23253046 DOI: 10.3109/13506129.2012.751367] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Pathophysiological evidences of AD have indicated that aggregation of Aβ is one of the principal causes of neuronal dysfunction, largely by way of inducing oxidative stresses such as free radical formation. We hypothesized that the known antioxidative attribute of SFN could be harnessed in Alzheimer's treatment. SFN is an indirect, potent antioxidant derived from broccoli that has previously been found to stimulate the Nrf2-ARE pathway and facilitate several other cytoprotective mechanisms. In this study, administration of SFN ameliorated cognitive function of Aβ-induced AD acute mouse models in Y-maze and passive avoidance behavior tests. Interestingly, we found that the therapeutic effect of SFN did not involve inhibition of Aβ aggregation. While the exact mechanism of interaction of SFN in AD has not yet been ascertained, our results suggest that SFN can aid in cognitive impairment and may protect the brain from amyloidogenic damages.
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Affiliation(s)
- Hyunjin Vincent Kim
- Center for Neuro-Medicine, Brain Science Institute, Korea Institute of Science and Technology, Seoul, Republic of Korea
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Malik J, Kumar M, Deshmukh R, Kumar P. Ameliorating effect of lyophilized extract of Butea frondosa leaves on scopolamine-induced amnesia in rats. PHARMACEUTICAL BIOLOGY 2013; 51:233-239. [PMID: 23127163 DOI: 10.3109/13880209.2012.717229] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
CONTEXT Butea frondosa (BF) Roxb. & Koen. (syn. B. monosperma Lam.) (Fabaceae) leaves have been used in folklore medicine for the treatment of diabetes, conjunctivitis, gastrointestinal tract, and central nervous system disorders such as anxiety, amnesia, etc. OBJECTIVE To evaluate the effect of lyophilized hydroalcoholic extract of BF leaves (BFLE) at 100, 200 and 400 mg/kg, p.o., for its memory enhancing activity against scopolamine-induced amnesia in rats. MATERIALS AND METHODS Antiamnesic effect of the BFLE was evaluated using Morris water maze and object recognition test models. The effect of BFLE on acetylcholinesterase activity and malondialdehyde and glutathione levels were also evaluated in brain homogenate. RESULT BFLE ameliorates scopolamine-induced amnesia in both the models with maximum effect at 400 mg/kg. BFLE (400 mg/kg) decreased escape latency and increased time spent in target quadrant (24.2 and 42.5 s, respectively) in comparison to scopolamine (82 and 18.2 s, respectively) in the Morris water maze task. In the object recognition test, BFLE produced significant increase in ability to discriminate between novel and familiar objects. The highest investigated dose of BFLE (400 mg/kg), produced a significant decrease in acetylcholinesterase activity and malondialdehyde levels, and improves glutathione levels in comparison to scopolamine. Moreover, this effect of BFLE at 400 mg/kg was comparable to that of standard, donepezil. CONCLUSION BFLE exhibited significant antiamnesic activity in rats thereby validating its folklore use.
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Affiliation(s)
- Jai Malik
- Department of Pharmacognosy and Herbal Drug Technology, ISF College of Pharmacy, Moga, Punjab, India.
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