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de Oliveira Vian C, Marinho MAG, da Silva Marques M, Hort MA, Cordeiro MF, Horn AP. Effects of quercetin in preclinical models of Parkinson's disease: A systematic review. Basic Clin Pharmacol Toxicol 2024; 135:3-22. [PMID: 38682342 DOI: 10.1111/bcpt.14011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 02/23/2024] [Accepted: 03/24/2024] [Indexed: 05/01/2024]
Abstract
Parkinson's disease (PD) is a neurodegenerative disease that affects dopaminergic neurons, thus impairing dopaminergic signalling. Quercetin (QUE) has antioxidant and neuroprotective properties that are promising for the treatment of PD. This systematic review aimed to investigate the therapeutic effects of QUE against PD in preclinical models. The systematic search was performed in PubMed, Scopus and Web of Science. At the final screening stage, 26 articles were selected according to pre-established criteria. Selected studies used different methods for PD induction, as well as animal models. Most studies used rats (73.08%) and mice (23.08%), with 6-OHDA as the main strategy for PD induction (38.6%), followed by rotenone (30.8%). QUE was tested immersed in oil, nanosystems or in free formulations, in varied routes of administration and doses, ranging from 10 to 400 mg/kg and from 5 to 200 mg/kg in oral and intraperitoneal administrations, respectively. Overall, evidence from published data suggests a potential use of QUE as a treatment for PD, mainly through the inhibition of oxidative stress, neuroinflammatory response and apoptotic pathways.
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Affiliation(s)
- Camila de Oliveira Vian
- Programa de Pós-graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande (FURG), Rio Grande, Brazil
- Laboratório de Neurociências, Instituto de Ciências Biológicas, FURG, Rio Grande, Brazil
| | - Marcelo Augusto Germani Marinho
- Programa de Pós-graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande (FURG), Rio Grande, Brazil
- Laboratório de Neurociências, Instituto de Ciências Biológicas, FURG, Rio Grande, Brazil
| | - Magno da Silva Marques
- Programa de Pós-graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande (FURG), Rio Grande, Brazil
- Laboratório de Neurociências, Instituto de Ciências Biológicas, FURG, Rio Grande, Brazil
| | - Mariana Appel Hort
- Programa de Pós-graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande (FURG), Rio Grande, Brazil
- Laboratório de Neurociências, Instituto de Ciências Biológicas, FURG, Rio Grande, Brazil
| | - Marcos Freitas Cordeiro
- Programa de Pós-Graduação em Biociências e Saúde, Universidade do Oeste de Santa Catarina (Unoesc), Joaçaba, Brazil
| | - Ana Paula Horn
- Programa de Pós-graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande (FURG), Rio Grande, Brazil
- Laboratório de Neurociências, Instituto de Ciências Biológicas, FURG, Rio Grande, Brazil
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Yedke NG, Soni D, Kumar P. Effect of Bacille-Calmette-Guerin vaccine against rotenone-induced Parkinson's disease: Role of neuroinflammation and neurotransmitters. Fundam Clin Pharmacol 2024; 38:538-549. [PMID: 38041521 DOI: 10.1111/fcp.12968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 10/22/2023] [Accepted: 10/30/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Parkinson's disease (PD) is an extrapyramidal movement disorder associated with a hypokinetic condition generated by impairment in dopaminergic neuronal viability in the nigrostriatal region of the brain. Current medications can only provide symptomatic management; to date, no permanent cure is available. To compensate for this lacuna, researchers are gaining interest in antigen-based therapy, and Bacille-Calmette-Guerin (BCG) is one of the vaccines with a high safety margin that acts by stimulating immunoreactive T-cells in the CNS and reducing expression of pro-inflammatory cytokines including interleukin (IL)-1β and tumor necrotic factor (TNF-α) to produce neuroprotection. A previous study reported that BCG exerts a neuroprotective effect against several neurodegenerative disorders, such as Alzheimer's disease. OBJECTIVE The objective of this study is to explore the neuroprotective effect of the BCG vaccine against the rotenone model of PD. METHODS Rotenone (1.5 mg/kg, s.c) for 28 days, and BCG vaccine (2 × 107 cfu, i.p) single dose was injected to rats, and behavioral assessments were performed on the 21st and 28th day. On the 29th day, rats were sacrificed, and brains were isolated for biochemical and neurochemical estimation. RESULTS BCG vaccine significantly restored rotenone-induced motor deficits (open field test, narrow beam walk, and rotarod), biochemical levels (GSH, SOD, catalase, MDA, and nitrite), neurotransmitters (dopamine, 5-hydroxy tryptamine, norepinephrine, 3,4-dihydroxyphenylacetic acid, hemovanillic acid, and 5-hydroxy indoleacetic acid), and levels of inflammatory cytokines (IL-1β and TNF-α) in the striatum. It also prevents histopathological changes by reducing eosinophilic lesions in the striatum. CONCLUSION From the results, we conclude that BCG vaccine showed neuroprotection through antioxidant and anti-inflammatory effect. Thus, in the future, it can be used as a neuroprotective agent for other neurological disorders, including PD.
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Affiliation(s)
- Narhari Gangaram Yedke
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University, Bathinda, India
| | - Divya Soni
- Department of Pharmacology, Central University of Punjab, Bathinda, India
| | - Puneet Kumar
- Department of Pharmacology, Central University of Punjab, Bathinda, India
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Cai F, Wang C. Comprehensive review of the phytochemistry, pharmacology, pharmacokinetics, and toxicology of alkamides (2016-2022). PHYTOCHEMISTRY 2024; 220:114006. [PMID: 38309452 DOI: 10.1016/j.phytochem.2024.114006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/26/2024] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
Alkamides refer to a class of natural active small-molecule products composed of fatty acids and amine groups. These compounds are widely distributed in plants, and their unique structures and various pharmacological activities have caught the attention of scholars. This review provides a collection of literatures related to the phytochemistry, pharmacological effects, pharmacokinetics, and toxicity of alkamides published in 2016-2022 and their summary to provide references for further development of this class of ingredients. A total of 234 components (including chiral isomers) were summarized, pharmacological activities, such as anti-inflammatory, antitumor, antidiabetic, analgesic, neuroprotective, insecticidal, antioxidant, and antibacterial, and miscellaneous properties of alkamides were discussed. In addition, the pharmacokinetic characteristics and toxicity of alkamides were reviewed. However, information on the pharmacological mechanisms of the action, drug safety, and pharmacokinetics of alkamides is limited and thus requires further investigation and evaluation.
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Affiliation(s)
- Fujie Cai
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai R&D Centre for Standardization of Chinese Medicines, 1200 Cailun Road, Shanghai, 201203, China
| | - Changhong Wang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai R&D Centre for Standardization of Chinese Medicines, 1200 Cailun Road, Shanghai, 201203, China.
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4
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Anand P, Kaur A, Singh S. Fucoxanthin mitigates valproic acid-induced autistic behavior through modulation of the AKT/GSK-3β signaling pathway. Eur J Pharmacol 2024; 967:176335. [PMID: 38331341 DOI: 10.1016/j.ejphar.2024.176335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 12/26/2023] [Accepted: 01/16/2024] [Indexed: 02/10/2024]
Abstract
This study aimed to investigate the effects of fucoxanthin, a natural compound found in seaweed, on various aspects of autism using a rat model induced by valproic acid (VPA). Pregnant rats were administered VPA (600 mg/kg) on gestational day 12.5, and male pups were orally administered fucoxanthin at 50, 100, or 200 mg/kg beginning on post-natal day (PND) 23-43. Behavioral assessments were conducted on PND 45-53, and on PND 54, the animals were sacrificed for further biochemical analyses (superoxide dismutase (SOD) and glutathione (GSH), nitric oxide (NO)) via UV spectroscopy. Inflammatory markers (IL-17, TNF-α, and IL-1β) were also analyzed by sandwich ELISA, and the molecular parameters were evaluated through ELISA. The results revealed that, compared with VPA, fucoxanthin improved behavior and neuronal morphology. Specifically, fucoxanthin administration was found to enhance spatial memory, reduce pain sensitivity, and improve social interaction, locomotor activity, balance, and motor coordination. Fucoxanthin also exhibited anti-inflammatory and antioxidant effects, as indicated by the restoration of SOD and GSH levels and reduced inflammatory cytokine levels. Molecular analyses revealed that fucoxanthin restored the levels of GSK-3β and AKT. Furthermore, fucoxanthin regulates neurotransmitters, which are related to increasing GABA and reducing glutamate levels in the cortex and cerebellum. The therapeutic effects were dose-dependent, with higher doses (200 mg/kg) showing greater efficacy than lower doses (100 mg/kg) in improving behavioral, biochemical, neurotransmitter, and molecular parameters. Fucoxanthin is a potential treatment for autism, but further research, including clinical trials, is necessary to determine its effectiveness in humans.
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Affiliation(s)
- Piyush Anand
- Neuropharmacology Division, Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Arshbir Kaur
- Neuropharmacology Division, Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Shamsher Singh
- Neuropharmacology Division, Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India.
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Rajan R, Karthikeyan S, Desikan R. Synthesis, Structural Elucidation, In Silico and In Vitro Studies of New Class of Methylenedioxyphenyl-Based Amide Derivatives as Potential Myeloperoxidase Inhibitors for Cardiovascular Protection. ACS OMEGA 2024; 9:7850-7868. [PMID: 38405500 PMCID: PMC10882620 DOI: 10.1021/acsomega.3c07555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 02/27/2024]
Abstract
Novel methylenedioxyphenyl-based amides, especially N-(4-methoxybenzyl)-6-nitrobenzo-[1,3]-dioxole-5-carboxamide (MDC) and N-(3-acetylphenyl)-6-nitrobenzo-[1,3]-dioxole-5-carboxamide (ADC), potential cardiovascular preventive agents, are successfully synthesized, and their chemical structures are verified by 1H and 13C NMR, Fourier transform infrared (FT-IR), high-resolution mass spectrometry (HRMS), and single-crystal X-ray diffraction (SC-XRD) analyses. Data obtained from SC-XRD reveal that MDC and ADC are both monoclinic molecules with Z = 2 and 4, respectively. From density functional theory (DFT) calculations, 3.54 and 3.96 eV are the energy gaps of the optimized MDC and ADC structures, respectively. MDC and ADC exhibit an electrophilicity index value of more than 1.5 eV, suggesting that they can act as an electrophile, facilitating bond formation with biomolecules. Hirshfeld surface analysis demonstrates that more than 25% of atomic interactions in both MDC and ADC are from H···H interactions. Based on pharmacokinetic predictions, MDC and ADC exhibit drug-like properties, and molecular docking simulations revealed favorable interactions with active site pockets. Both MDC and ADC achieved higher docking scores of -7.74 and -7.79 kcal/mol, respectively, with myeloperoxidase (MPO) protein. From docking results, MPO was found to be most favorable followed by dipeptidyl peptidase-4 (DPP-4) and α-glucosidase (α-GD). Antioxidant, anti-inflammatory, and in vitro enzymatic studies of MDC and ADC indicate that MDC is more selective toward MPO and more potent than ADC. The application of MDC to inhibit myeloperoxidase could be ascertained to reduce the cardiovascular risk factor. This can be supported from the results of computational docking (based on hydrogen bonding and docking score), in vitro antioxidant and anti-inflammatory properties, and MPO enzymatic inhibition (based on the percentage of inhibition and IC50 values).
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Affiliation(s)
- Reshma Rajan
- Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology, Vellore 632014, Tamilnadu, India
| | - Sambantham Karthikeyan
- Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology, Vellore 632014, Tamilnadu, India
| | - Rajagopal Desikan
- Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology, Vellore 632014, Tamilnadu, India
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Mallan S, Singh S. Syringic acid alleviates valproic acid induced autism via activation of p38 mitogen-activated protein kinase: Possible molecular approach. ENVIRONMENTAL TOXICOLOGY 2023; 38:2400-2415. [PMID: 37357844 DOI: 10.1002/tox.23876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 05/09/2023] [Accepted: 06/11/2023] [Indexed: 06/27/2023]
Abstract
Autism spectrum disorder (ASD) is a multifactorial neurodevelopmental disorder characterized by restrictive and repetitive behavior followed by impairment in social, verbal, and non-verbal interaction and communication. Valproic acid (VPA) is a well-known anti-epileptic drug, but its prenatal exposure to animals causes social impairment, neurotransmitters imbalance, and neuroinflammation with ASD-like phenotypes. Syringic acid (SA) is a polyphenolic compound with anti-inflammatory, anti-apoptotic, antioxidant, and neuromodulator activity. The purpose of study was to investigate the protective effect of Syringic acid (SA) in prenatal VPA-treated rats through behavioral, neuroinflammation, oxidative stress, neurotransmitters, neuronal integrity, and apoptotic marker. Single dose of VPA was administered 600 mg/kg, i.p. on a gestational day (GD) 12th and SA was administrated from PnD 26th to 54th at the dose of 25, 50, and 100 mg/kg, p.o. On PnD 56th behavioral parameters (Pain sensitivity, open field test, narrow beam walks test and social impairment test) were performed and all animals were sacrificed, and brain tissue was isolated for oxidative stress (GSH, CAT, and LPO), neuroinflammation (TNF-α and IL-6) and neurotransmitters (GABA and Glutamate), histopathology (H&E, Nissl), immunohistochemistry (p38 MAPK) analysis. Rat treated with SA dose-dependently prevented behavioral alteration, restored antioxidant enzymes, neurotransmitters level, decreased neuroinflammatory markers, and improved neuronal integrity. Furthermore, immunohistochemistry confirmed the reduced p38 MAPK marker expression by SA in VPA induced autistic behavior.
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Affiliation(s)
- Sudhanshu Mallan
- Neuropharmacology division, Department of Pharmacology, ISF College of Pharmacy, Moga, India
| | - Shamsher Singh
- Neuropharmacology division, Department of Pharmacology, ISF College of Pharmacy, Moga, India
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Salgueiro WG, Soares MV, Martins CF, Paula FR, Rios-Anjos RM, Carrazoni T, Mori MA, Müller RU, Aschner M, Dal Belo CA, Ávila DS. Dopaminergic modulation by quercetin: In silico and in vivo evidence using Caenorhabditis elegans as a model. Chem Biol Interact 2023; 382:110610. [PMID: 37348670 PMCID: PMC10527449 DOI: 10.1016/j.cbi.2023.110610] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 06/12/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
Quercetin is a flavonol widely distributed in plants and has various described biological functions. Several studies have reported on its ability to restore neuronal function in a wide variety of disease models, including animal models of neurodegenerative disorders such as Parkinson's disease. Quercetin per se can act as a neuroprotector/neuromodulator, especially in diseases related to impaired dopaminergic neurotransmission. However, little is known about how quercetin interacts with the dopaminergic machinery. Here we employed the nematode Caenorhabditis elegans to study this putative interaction. After observing behavioral modulation, mutant analysis and gene expression in C. elegans upon exposure to quercetin at a concentration that does not protect against MPTP, we constructed a homology-based dopamine transporter protein model to conduct a docking study. This led to suggestive evidence on how quercetin may act as a dopaminergic modulator by interacting with C. elegans' dopamine transporter and alter the nematode's exploratory behavior. Consistent with this model, quercetin controls C. elegans behavior in a way dependent on the presence of both the dopamine transporter (dat-1), which is up-regulated upon quercetin exposure, and the dopamine receptor 2 (dop-2), which appears to be mandatory for dat-1 up-regulation. Our data propose an interaction with the dopaminergic machinery that may help to establish the effects of quercetin as a neuromodulator.
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Affiliation(s)
- Willian Goulart Salgueiro
- Research Group in Biochemistry and Toxicology in Caenorhabditis elegans (GBToxCe), Federal University of Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil; Department of Biochemistry and Tissue Biology, University of Campinas, Monteiro Lobato Avenue, 255, Campinas, São Paulo, 13083-862, Brazil; Cologne Excellence Cluster on Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Cologne, Cologne, 50931, Germany; Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Marcell Valandro Soares
- Research Group in Biochemistry and Toxicology in Caenorhabditis elegans (GBToxCe), Federal University of Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil; Department of Biochemistry and Molecular Biology, Post-graduate Program in Biological Sciences, Federal University of Santa Maria, Camobi, 97105-900, Santa Maria, RS, Brazil
| | - Cassiano Fiad Martins
- Research Group in Biochemistry and Toxicology in Caenorhabditis elegans (GBToxCe), Federal University of Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil
| | - Fávero Reisdorfer Paula
- Laboratory for Development and Quality Control in Medicines (LDCQ), Federal University of Pampa, Uruguaiana, RS, Brazil
| | | | - Thiago Carrazoni
- Neurobiology and Toxinology Laboratory, (LANETOX), Federal University of Pampa - UNIPAMPA, CEP 97300-000, São Gabriel, RS, Brazil
| | - Marcelo A Mori
- Department of Biochemistry and Tissue Biology, University of Campinas, Monteiro Lobato Avenue, 255, Campinas, São Paulo, 13083-862, Brazil; Obesity and Comorbidities Research Center (OCRC), University of Campinas, Campinas, SP, Brazil; Experimental Medicine Research Cluster, University of Campinas, Campinas, SP, Brazil
| | - Roman-Ulrich Müller
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-associated Diseases (CECAD), University of Cologne, Cologne, 50931, Germany; Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, 10461, USA
| | - Cháriston André Dal Belo
- Department of Biochemistry and Molecular Biology, Post-graduate Program in Biological Sciences, Federal University of Santa Maria, Camobi, 97105-900, Santa Maria, RS, Brazil; Neurobiology and Toxinology Laboratory, (LANETOX), Federal University of Pampa - UNIPAMPA, CEP 97300-000, São Gabriel, RS, Brazil; Multidisciplinar Department, Federal University of São Paulo (UNIFESP), Angelica Street, 100- CEP 06110295, Osasco, SP, Brazil
| | - Daiana Silva Ávila
- Research Group in Biochemistry and Toxicology in Caenorhabditis elegans (GBToxCe), Federal University of Pampa - UNIPAMPA, CEP 97500-970, Uruguaiana, RS, Brazil; Department of Biochemistry and Molecular Biology, Post-graduate Program in Biological Sciences, Federal University of Santa Maria, Camobi, 97105-900, Santa Maria, RS, Brazil.
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López-Valverde N, López-Valverde A, Montero J, Rodríguez C, Macedo de Sousa B, Aragoneses JM. Antioxidant, anti-inflammatory and antimicrobial activity of natural products in periodontal disease: a comprehensive review. Front Bioeng Biotechnol 2023; 11:1226907. [PMID: 37600299 PMCID: PMC10435350 DOI: 10.3389/fbioe.2023.1226907] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/27/2023] [Indexed: 08/22/2023] Open
Abstract
Periodontal diseases (PD) are common chronic inflammatory oral pathologies that are strongly linked to others not found in the mouth cavity. The immune system mediates the host response, which includes the upregulation of proinflammatory cytokines, metalloproteinases, and reactive oxygen species (ROS); the latter may play an important role in the establishment and progression of inflammatory diseases, particularly periodontal disease, via the development of oxidative stress (OS). Natural antioxidants have powerful anti-inflammatory properties, and some can reduce serum levels of key PD indicators such tumor necrosis factor (TNF) and interleukin IL-1. This review compiles, through a thorough literature analysis, the antioxidant, anti-inflammatory, and antibacterial effects of a variety of natural products, as well as their therapeutic potential in the treatment of PD.
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Affiliation(s)
- Nansi López-Valverde
- Department of Medicine and Medical Specialties, Faculty of Health Sciences, Universidad Alcalá de Henares, Madrid, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Madrid, Spain
| | - Antonio López-Valverde
- Department of Surgery, Instituto de Investigación Biomédica de Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | - Javier Montero
- Department of Surgery, Instituto de Investigación Biomédica de Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | - Cinthia Rodríguez
- Department of Dentistry, Universidad Federico Henríquez y Carvajal, Santo Domingo, Dominican Republic
| | - Bruno Macedo de Sousa
- Institute for Occlusion and Orofacial Pain Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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Protective Mechanisms of 3-Acetyl-11-keto-β-Boswellic Acid and Piperine in Fluid Percussion Rat Model of Traumatic Brain Injury Targeting Nrf2 and NFkB Signaling. Neurotox Res 2023; 41:57-84. [PMID: 36576717 DOI: 10.1007/s12640-022-00628-x] [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: 08/10/2022] [Revised: 10/18/2022] [Accepted: 12/16/2022] [Indexed: 12/29/2022]
Abstract
The current study aimed to investigate the neuroprotective effect of 3-acetyl-11-keto-β-boswellic acid (AKBA) in combination with bioenhancer piperine in lateral fluid percussion injury-induced TBI in experimental rats. Fluid percussion injury was introduced in the rat brain by delivering 50 mmHg of pressure for 3 min to the exposed brain. AKBA 25 mg/kg, 50 mg/kg orally, and AKBA (25 mg/kg, p.o.) in combination with piperine (2.5 mg/kg, p.o.) were administered from day 1 to day 14 to the assigned groups. On the 1st, 7th, and 14th day, behavioral parameters were checked. On the 15th day, animals were euthanized. In TBI rat model, AKBA-piperine combination significantly restored the altered performance of grip strength, rotarod test, open field task, narrow beam task (beam crossing time and no. of foot slips), and Morris water maze (escape latency and time spent in target quadrant) (p < 0.001 vs TBI control). Furthermore, the AKBA-piperine combination significantly reduced pro-inflammatory cytokine level in TBI rat model (&p < 0.001 vs TBI control). The combined effect of AKBA and piperine significantly restored oxidative stress parameters level, catecholamines level, and neurotransmitters level (p < 0.001 vs TBI control). Further findings showed that the AKBA-piperine combination prevented histopathological changes (p < 0.001), and the immunohistological study confirmed increased Nrf2-positive cells (p < 0.001 vs TBI control) and reduced nuclear factor kappa B (NFkB) expression (p < 0.001 vs TBI control, p < 0.01 vs TBI + AKBA 50 mg/kg) in the cortical region following AKBA-piperine administration. The present study concluded that AKBA along with piperine achieved anti-oxidant, and anti-inflammatory effects, and also prevented neuronal injury via targeting Nrf2 and NFkB expressions.
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10
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Tsarouchi M, Fanarioti E, Karathanos VT, Dermon CR. Protective Effects of Currants ( Vitis vinifera) on Corticolimbic Serotoninergic Alterations and Anxiety-like Comorbidity in a Rat Model of Parkinson's Disease. Int J Mol Sci 2022; 24:ijms24010462. [PMID: 36613906 PMCID: PMC9820698 DOI: 10.3390/ijms24010462] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/18/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022] Open
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by the loss of nigral dopaminergic neurons. Increasing evidence supports that PD is not simply a motor disorder but a systemic disease leading to motor and non-motor symptoms, including memory loss and neuropsychiatric conditions, with poor management of the non-motor deficits by the existing dopaminergic medication. Oxidative stress is considered a contributing factor for nigrostriatal degeneration, while antioxidant/anti-inflammatory properties of natural phyto-polyphenols have been suggested to have beneficial effects. The present study aimed to determine the contribution of monoaminergic neurotransmission on the anxiety-like phenotype in a rat rotenone PD model and evaluate the possible neuroprotective effects of black Corinthian currant, Vitis vinifera, consisting of antioxidant polyphenols. Rotenone-treated rats showed anxiety-like behavior and exploratory deficits, accompanied by changes in 5-HT, SERT and β2-ARs expression in the prefrontal cortices, hippocampus and basolateral amygdala. Importantly, the motor and non-motor behavior, as well as 5-HT, SERT and β2-ARs expression patterns of the PD-like phenotype were partially recovered by a supplementary diet with currants. Overall, our results suggest that the neuroprotective effects of Corinthian currants in rotenone-induced anxiety-like behavior may be mediated via corticolimbic serotonergic transmission.
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Affiliation(s)
- Martha Tsarouchi
- Laboratory of Human and Animal Physiology, Department of Biology, University of Patras, 265 00 Patras, Greece
| | - Eleni Fanarioti
- Laboratory of Human and Animal Physiology, Department of Biology, University of Patras, 265 00 Patras, Greece
| | - Vaios T. Karathanos
- Laboratory of Chemistry-Biochemistry-Physical Chemistry of Foods, Department of Dietetics and Nutrition, Harokopio University, 176 76 Kallithea, Greece
- Agricultural Cooperatives’ Union of Aeghion, Corinthou 201, 251 00 Aeghion, Greece
| | - Catherine R. Dermon
- Laboratory of Human and Animal Physiology, Department of Biology, University of Patras, 265 00 Patras, Greece
- Correspondence:
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Meng-zhen S, Ju L, Lan-chun Z, Cai-feng D, Shu-da Y, Hao-fei Y, Wei-yan H. Potential therapeutic use of plant flavonoids in AD and PD. Heliyon 2022; 8:e11440. [DOI: 10.1016/j.heliyon.2022.e11440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/16/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2022] Open
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Acıkara OB, Karatoprak GŞ, Yücel Ç, Akkol EK, Sobarzo-Sánchez E, Khayatkashani M, Kamal MA, Kashani HRK. A Critical Analysis of Quercetin as the Attractive Target for the Treatment of Parkinson's Disease. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2022; 21:795-817. [PMID: 34872486 DOI: 10.2174/1871527320666211206122407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/01/2021] [Accepted: 09/28/2021] [Indexed: 02/08/2023]
Abstract
Parkinson's Disease (PD) is a multifaceted disorder with various factors suggested to play a synergistic pathophysiological role, such as oxidative stress, autophagy, pro-inflammatory events, and neurotransmitter abnormalities. While it is crucial to discover new treatments in addition to preventing PD, recent studies have focused on determining whether nutraceuticals will exert neuroprotective actions and pharmacological functions in PD. Quercetin, a flavonol-type flavonoid, is found in many fruits and vegetables and is recognised as a complementary therapy for PD. The neuroprotective effect of quercetin is directly associated with its antioxidant activity, in addition to stimulating cellular defence against oxidative stress. Other related mechanisms are activating Sirtuins (SIRT1) and inducing autophagy, in addition to induction of Nrf2-ARE and Paraoxonase 2 (PON2). Quercetin, whose neuroprotective activity has been demonstrated in many studies, unfortunately, has a disadvantage because of its poor water solubility, chemical instability, and low oral bioavailability. It has been reported that the disadvantages of quercetin have been eliminated with nanocarriers loaded with quercetin. The role of nanotechnology and nanodelivery systems in reducing oxidative stress during PD provides an indisputable advantage. Accordingly, the present review aims to shed light on quercetin's beneficial effects and underlying mechanisms in neuroprotection. In addition, the contribution of nanodelivery systems to the neuroprotective effect of quercetin is also discussed.
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Affiliation(s)
- Ozlem Bahadır Acıkara
- Department of Pharmacognosy, Faculty of Pharmacy, Ankara University, Tandoğan, 06100 Ankara, Turkey
| | - Gökçe Şeker Karatoprak
- Department of Pharmacognosy, Faculty of Pharmacy, Erciyes University, 38039, Kayseri, Turkey
| | - Çiğdem Yücel
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Erciyes University, 38039, Kayseri, Turkey
| | - Esra Küpeli Akkol
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Etiler 06330, Ankara, Turkey
| | - Eduardo Sobarzo-Sánchez
- Instituto de Investigación y Postgrado, Facultad de Ciencias de la Salud, Universidad Central de Chile, 8330507, Santiago, Chile.,Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | | | - Mohammad Amjad Kamal
- Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China.,King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh.,Enzymoics, Novel Global Community Educational Foundation, Sydney, Australia
| | - Hamid Reza Khayat Kashani
- Department of Neurosurgery, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Cui Z, Zhao X, Amevor FK, Du X, Wang Y, Li D, Shu G, Tian Y, Zhao X. Therapeutic application of quercetin in aging-related diseases: SIRT1 as a potential mechanism. Front Immunol 2022; 13:943321. [PMID: 35935939 PMCID: PMC9355713 DOI: 10.3389/fimmu.2022.943321] [Citation(s) in RCA: 97] [Impact Index Per Article: 48.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/27/2022] [Indexed: 12/15/2022] Open
Abstract
Quercetin, a naturally non-toxic flavonoid within the safe dose range with antioxidant, anti-apoptotic and anti-inflammatory properties, plays an important role in the treatment of aging-related diseases. Sirtuin 1 (SIRT1), a member of NAD+-dependent deacetylase enzyme family, is extensively explored as a potential therapeutic target for attenuating aging-induced disorders. SIRT1 possess beneficial effects against aging-related diseases such as Alzheimer’s disease (AD), Parkinson’s disease (PD), Huntington’s disease (HD), Depression, Osteoporosis, Myocardial ischemia (M/I) and reperfusion (MI/R), Atherosclerosis (AS), and Diabetes. Previous studies have reported that aging increases tissue susceptibility, whereas, SIRT1 regulates cellular senescence and multiple aging-related cellular processes, including SIRT1/Keap1/Nrf2/HO-1 and SIRTI/PI3K/Akt/GSK-3β mediated oxidative stress, SIRT1/NF-κB and SIRT1/NLRP3 regulated inflammatory response, SIRT1/PGC1α/eIF2α/ATF4/CHOP and SIRT1/PKD1/CREB controlled phosphorylation, SIRT1-PINK1-Parkin mediated mitochondrial damage, SIRT1/FoxO mediated autophagy, and SIRT1/FoxG1/CREB/BDNF/Trkβ-catenin mediated neuroprotective effects. In this review, we summarized the role of SIRT1 in the improvement of the attenuation effect of quercetin on aging-related diseases and the relationship between relevant signaling pathways regulated by SIRT1. Moreover, the functional regulation of quercetin in aging-related markers such as oxidative stress, inflammatory response, mitochondrial function, autophagy and apoptosis through SIRT1 was discussed. Finally, the prospects of an extracellular vesicles (EVs) as quercetin loading and delivery, and SIRT1-mediated EVs as signal carriers for treating aging-related diseases, as well as discussed the ferroptosis alleviation effects of quercetin to protect against aging-related disease via activating SIRT1. Generally, SIRT1 may serve as a promising therapeutic target in the treatment of aging-related diseases via inhibiting oxidative stress, reducing inflammatory responses, and restoring mitochondrial dysfunction.
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Affiliation(s)
- Zhifu Cui
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Xingtao Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Felix Kwame Amevor
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Xiaxia Du
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yan Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Diyan Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Gang Shu
- Department of Basic Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yaofu Tian
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Xiaoling Zhao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
- *Correspondence: Xiaoling Zhao,
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Apigenin Attenuates Functional and Structural Alterations via Targeting NF-kB/Nrf2 Signaling Pathway in LPS-Induced Parkinsonism in Experimental Rats : Apigenin Attenuates LPS-Induced Parkinsonism in Experimental Rats. Neurotox Res 2022; 40:941-960. [PMID: 35608813 DOI: 10.1007/s12640-022-00521-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 05/04/2022] [Accepted: 05/13/2022] [Indexed: 10/18/2022]
Abstract
Parkinson's disease (PD) is a progressive hypokinetic movement disorder caused by selective degeneration of dopaminergic neurons in striatum and dopamine deficiency in a region of the midbrain. LPS is an endotoxin, used as animal model to induce microglial activation, neuroinflammation, oxidative stress, and neurotransmitter alteration with PD-like symptoms. Therefore, to prevent neuroinflammation and neurotransmitter changes and to restore normal brain physiology, we tried apigenin (AGN) alone and in combination with piperine (bioenhancer), in LPS experimental model of rats. In this study, rats were treated with single unilateral intranigral injection of LPS at a dose of 5 μg/5 μl on day 0. The oral administration of AGN (25 and 50 mg/kg; p.o.) alone, AGN (25 mg/kg; p.o.) in combination with piperine (2.5 mg/kg; p.o.), and bromocriptine (10mg/kg; p.o.) started from day 7th once in a day. Intranigral injection of LPS significantly altered body weight and behavioral parameters assessed on weekly basis. Furthermore, the biochemical and neuroinflammatory analysis confirmed (on day 22nd) increased level of nitrite, MDA, SOD, TNF-α, IL-1β, IL-6, and caspase-1, and decreased level of CAT, GSH, and complex-I. Furthermore, altered level of neurotransmitters (DA, GABA, and glutamate) and cellular changes were observed from histopathological and immunohistochemistry (NF-kB and Nrf-2) analysis. Treatment with AGN (25 and 50 mg/kg; p.o.) alone and AGN (25 mg/kg; p.o.) in combination with piperine (2.5 mg/kg; p.o.) significantly attenuated the alteration in body weight, motor impairments, oxidative stress, neuroinflammation, and neurotransmitters in rat brain. The neuroprotective effect of AGN against LPS-induced cell death is attributed by modulating NF-kB and Nrf2 signaling pathway in the striatum.
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The α7 nAChR allosteric modulator PNU-120596 amends neuroinflammatory and motor consequences of parkinsonism in rats: Role of JAK2/NF-κB/GSk3β/ TNF-α pathway. Biomed Pharmacother 2022; 148:112776. [PMID: 35272136 DOI: 10.1016/j.biopha.2022.112776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/01/2022] [Accepted: 02/27/2022] [Indexed: 11/20/2022] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disorder and a leading cause of disability. The current gold standard for PD treatment, L-Dopa, has limited clinical efficacy and multiple side effects. Evidence suggests that activation of α7 nicotinic acetylcholine receptors (α7nAChRs) abrogates neuronal and inflammatory insults. Here we tested whether PNU-120596 (PNU), a type II positive allosteric modulator of α7 nAChR, has a critical role in regulating motor dysfunction and neuroinflammation correlated with the associated PD dysfunction. Neuroprotective mechanisms were investigated through neurobehavioral, molecular, histopathological, and immunohistochemical studies. PNU reversed motor incoordination and hypokinesia induced via the intrastriatal injection of 6-hydroxydopamine and manifested by lower falling latency in the rotarod test, short ambulation time and low rearing incidence in open field test. Tyrosine hydroxylase immunostaining showed a significant restoration of dopaminergic neurons following PNU treatment, in addition to histopathological restoration in nigrostriatal tissues. PNU halted striatal neuroinflammation manifested as a suppressed expression of JAK2/NF-κB/GSk3β accompanied by a parallel decline in the protein expression of TNF-α in nigrostriatal tissue denoting the modulator anti-inflammatory capacity. Moreover, the protective effects of PNU were partially reversed by the α7 nAChR antagonist, methyllycaconitine, indicating the role of α7 nAChR modulation in the mechanism of action of PNU. This is the first study to reveal the positive effects of PNU-120596 on motor derangements of PD via JAK2/NF-κB/GSk3β/ TNF-α neuroinflammatory pathways, which could offer a potential therapeutic strategy for PD.
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Tripathi AK, Ray AK, Mishra SK. Molecular and pharmacological aspects of piperine as a potential molecule for disease prevention and management: evidence from clinical trials. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2022; 11:16. [PMID: 35127957 PMCID: PMC8796742 DOI: 10.1186/s43088-022-00196-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 01/11/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Piperine is a type of amide alkaloid that exhibits pleiotropic properties like antioxidant, anticancer, anti-inflammatory, antihypertensive, hepatoprotective, neuroprotective and enhancing bioavailability and fertility-related activities. Piperine has the ability to alter gastrointestinal disorders, drug-metabolizing enzymes, and bioavailability of several drugs. The present review explores the available clinical and preclinical data, nanoformulations, extraction process, structure-activity relationships, molecular docking, bioavailability enhancement of phytochemicals and drugs, and brain penetration properties of piperine in the prevention, management, and treatment of various diseases and disorders. MAIN BODY Piperine provides therapeutic benefits in patients suffering from diabetes, obesity, arthritis, oral cancer, breast cancer, multiple myeloma, metabolic syndrome, hypertension, Parkinson's disease, Alzheimer's disease, cerebral stroke, cardiovascular diseases, kidney diseases, inflammatory diseases, and rhinopharyngitis. The molecular basis for the pleiotropic activities of piperine is based on its ability to regulate multiple signaling molecules such as cell cycle proteins, anti-apoptotic proteins, P-glycoprotein, cytochrome P450 3A4, multidrug resistance protein 1, breast cancer resistance protein, transient receptor potential vanilloid 1 proinflammatory cytokine, nuclear factor-κB, c-Fos, cAMP response element-binding protein, activation transcription factor-2, peroxisome proliferator-activated receptor-gamma, Human G-quadruplex DNA, Cyclooxygenase-2, Nitric oxide synthases-2, MicroRNA, and coronaviruses. Piperine also regulates multiple signaling pathways such as Akt/mTOR/MMP-9, 5'-AMP-activated protein kinase-activated NLR family pyrin domain containing-3 inflammasome, voltage-gated K+ current, PKCα/ERK1/2, NF-κB/AP-1/MMP-9, Wnt/β-catenin, JNK/P38 MAPK, and gut microbiota. SHORT CONCLUSION Based on the current evidence, piperine can be the potential molecule for treatment of disease, and its significance of this molecule in the clinic is discussed. GRAPHICAL ABSTRACT
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Affiliation(s)
- Amit Kumar Tripathi
- Molecular Biology Unit, Institute of Medical Science, Banaras Hindu University, Varanasi, 221005 India
- Clinical Research Division, School of Basic and Applied Science, Galgotias University, Gautam Buddha Nagar, UP India
| | - Anup Kumar Ray
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University, Varanasi, 221005 India
- Department of Pharmacognosy, I.T.S College of Pharmacy, Ghaziabad, UP 201206 India
| | - Sunil Kumar Mishra
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University, Varanasi, 221005 India
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de Mendonça CR, Manhães-de-Castro R, de Santana BJRC, Olegário da Silva L, Toscano AE, Guzmán-Quevedo O, Monteiro Galindo LC. Effects of flavonols on emotional behavior and compounds of the serotonergic system: A preclinical systematic review. Eur J Pharmacol 2021; 916:174697. [PMID: 34954234 DOI: 10.1016/j.ejphar.2021.174697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 11/29/2021] [Accepted: 12/07/2021] [Indexed: 12/21/2022]
Abstract
Serotonin (5-hydroxytryptamine, 5-HT) is a neurotransmitter that regulates multiple psychophysiological functions. An imbalance of 5-HT in the brain can modulate emotional behavior such as depression and anxiety. Substances, such as flavonols, naturally found in some plants and foods have beneficial effects on psychiatric disorders, have been studied. The aim of this systematic review was to investigate the effects of flavonols on morphological, physiological, and cellular aspects of the serotonergic system as well as on some behaviors modulated by this system. Literature searches were performed in the LILACS, Web of Science, Scopus, PubMed and Sigle via Open Grey databases, from which 1725 studies were found. Using a predefined protocol registered on the CAMARADES website, 18 studies were chosen for qualitative synthesis. Internal validity was assessed using the SYRCLE's risk of bias tool. The Kappa index was also measured to analyze agreement among the reviewers. The results of this systematic review showed that flavonols have been reported to modify physiological aspects of the serotonergic system, increasing levels of serotonin and decreasing levels of its metabolite, 5-hydroxyindoleacetic acid (5-HIAA) and promoting antioxidant effects in encephalic regions. Moreover, the results showed that flavonols can also modulate of the serotonergic system, being associated with antidepressant and anxiolytic activities. Additionally, flavonols were found to not have psychostimulant effect; they can, however, reverse damage to locomotor activity.
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Affiliation(s)
| | - Raul Manhães-de-Castro
- Postgraduate Program in Nutrition, Universidade Federal de Pernambuco, 55670-901, Recife, PE, Brazil; Studies in Nutrition and Phenotypic Plasticity Unit, Brazil
| | | | - Luana Olegário da Silva
- Postgraduate Program in Nutrition, Physical Activity and Phenotypic Plasticity, Universidade Federal de Pernambuco, 55608-680, Vitória de Santo Antão, PE, Brazil
| | - Ana Elisa Toscano
- Postgraduate Program in Nutrition, Universidade Federal de Pernambuco, 55670-901, Recife, PE, Brazil; Postgraduate Program in Neuropsychiatry and Behavioral Sciences, Universidade Federal de Pernambuco, 55608-680, Recife, PE, Brazil; Studies in Nutrition and Phenotypic Plasticity Unit, Brazil
| | - Omar Guzmán-Quevedo
- Postgraduate Program in Neuropsychiatry and Behavioral Sciences, Universidade Federal de Pernambuco, 55608-680, Recife, PE, Brazil; Laboratory of Neuronutrition and Metabolic Disorders, Instituto Tecnológico Superior de Tacámbaro, 61650, Tacámbaro, Michoacán, Mexico; Centro de Investigación Biomédica de Michoacán, Instituto Mexicano Del Seguro Social, 58341, Morelia, Michoacán, Mexico
| | - Lígia Cristina Monteiro Galindo
- Postgraduate Program in Nutrition, Physical Activity and Phenotypic Plasticity, Universidade Federal de Pernambuco, 55608-680, Vitória de Santo Antão, PE, Brazil; Department of Anatomy, Universidade Federal de Pernambuco, Brazil; Studies in Nutrition and Phenotypic Plasticity Unit, Brazil.
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Raj K, Gupta GD, Singh S. Spermine protects aluminium chloride and iron-induced neurotoxicity in rat model of Alzheimer's disease via attenuation of tau phosphorylation, Amyloid-β (1-42) and NF-κB pathway. Inflammopharmacology 2021; 29:1777-1793. [PMID: 34727278 DOI: 10.1007/s10787-021-00883-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/14/2021] [Indexed: 12/29/2022]
Abstract
Alzheimer's disease (AD) is the most prevalent type of dementia, characterized by a gradual decline in cognitive and memory functions of the aged peoples. Long-term exposure to heavy metals (aluminium and iron) cause neurotoxicity by amyloid plaques accumulation, tau phosphorylation, increased oxidative stress, neuroinflammation, and cholinergic neurons degeneration, contributes to the development of AD-like symptoms. The present research work is designed to investigate the neuroprotective effect of spermine in aluminium chloride (AlCl3), and iron (Fe) induced AD-like symptoms in rats. Rats were administered of AlCl3 (100 mg/kg p.o.) alone and in combination with iron (120 μg/g, p.o.) for 28 days. Spermine (5 and 10 mg/kg) through intraperitoneal (i.p.) route was given for 14 days. The recognition and spatial memory impairment were tasted using Morris water maze (MWM), actophotometer, and Novel Object Recognition test (NORT). All the rats were sacrificed on day 29, brains were isolated, and tissue homogenate was used for neuroinflammatory, biochemical, neurotransmitters, metals concentration, and nuclear factor-kappa B (NF-κB) analysis. In the present study, AlCl3 and iron administration elevated oxidative stress, cytokines release, dysbalanced neurotransmitters concentration, and biochemical changes. Rats treated with spermine dose-dependently improved the recognition and spatial memory, attenuated proinflammatory cytokine release, and restored neurotransmitters concentration and antioxidant enzymes. Spermine also mitigated the increased beta-amyloid (Aβ42), with downregulation of tau phosphorylation. Furthermore, spermine augmented the hippocampal levels of B cell leukaemia/lymphoma-2 (Bcl-2), diminished nuclear factor-kappa B (NF-κB) and caspase-3 (casp-3) expression. Moreover, spermine exhibited the neuroprotective effect through anti-inflammatory, antioxidant, neurotransmitters restoration, anti-apoptotic Aβ42 concentration.
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Affiliation(s)
- Khadga Raj
- Neuropharmacology Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India
| | - G D Gupta
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, 142001, India
| | - Shamsher Singh
- Neuropharmacology Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India.
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Network Pharmacology-Based and Molecular Docking-Based Analysis of Suanzaoren Decoction for the Treatment of Parkinson's Disease with Sleep Disorder. BIOMED RESEARCH INTERNATIONAL 2021; 2021:1752570. [PMID: 34660782 PMCID: PMC8519686 DOI: 10.1155/2021/1752570] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 08/18/2021] [Accepted: 09/03/2021] [Indexed: 11/23/2022]
Abstract
This study is aimed at exploring the possible mechanism of action of the Suanzaoren decoction (SZRD) in the treatment of Parkinson's disease with sleep disorder (PDSD) based on network pharmacology and molecular docking. Traditional Chinese Medicine Systems Pharmacology (TCMSP) was used to screen the bioactive components and targets of SZRD, and their targets were standardized using the UniProt platform. The disease targets of “Parkinson's disease (PD)” and “Sleep disorder (SD)” were collected by OMIM, GeneCards, and DisGeNET databases. Thereafter, the protein-protein interaction (PPI) network was constructed using the STRING platform and visualized by Cytoscape (3.7.2) software. Then, the DAVID platform was used to analyze the Gene Ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway. Cytoscape (3.7.2) software was also used to construct the network of the “herb-component-target-pathway.” The core active ingredients and core action targets of the drug were verified by molecular docking using AutoDock software. A total of 135 Chinese herbal components and 41 corresponding targets were predicted for the treatment of PDSD using SZRD. Fifteen important signaling pathways were screened, such as the cancer pathway, TNF signaling pathway, PI3K-AKT signaling pathway, HIF-1 signaling pathway, and Toll-like receptor signaling pathway. The results of molecular docking showed that the main active compounds could bind to the representative targets and exhibit good affinity. This study revealed that SZRD has the characteristics and advantages of “multicomponent, multitarget, and multipathway” in the treatment of PDSD; among these, the combination of the main active components of quercetin and kaempferol with the key targets of AKT1, IL6, MAPK1, TP53, and VEGFA may be one of the important mechanisms. This study provides a theoretical basis for further study of the material basis and molecular mechanism of SZRD in the treatment of PDSD.
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Kaushik P, Ali M, Salman M, Tabassum H, Parvez S. Harnessing the mitochondrial integrity for neuroprotection: Therapeutic role of piperine against experimental ischemic stroke. Neurochem Int 2021; 149:105138. [PMID: 34284077 DOI: 10.1016/j.neuint.2021.105138] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 01/13/2023]
Abstract
Ischemic stroke (IS) is a rapidly increasing global burden and is associated with severe neurological decline and mortality. There is urgent requirement of the efforts, aimed to identify therapeutic strategies that are effective in clinic to promote significant recovery from IS. Studies have shown that mitochondria mediated neuroprotection can be a competent target against ischemic damage. Therefore, we examined whether mitochondrial impairment is regulated by Piperine (PIP), an alkaloid of Piper Longum, which has neuroprotective activity against ischemic brain injury. In this study, transient middle cerebral artery occlusion (tMCAO) surgery was performed on male Wistar rats for 90 min followed by 22.5 h of reperfusion for mimicking the IS condition. This study consisted of three groups: sham, tMCAO and tMCAO + PIP (10 mg/kg b.wt., p.o/day for 15 days), and studied for behavioral tests, infarct volume, brain pathological changes, mitochondrial dysfunction, inflammation alongwith cell survival status. PIP pre-treatment showed reduction in neurological alterations and infarct volume. In addition, PIP pre-treatment suppressed the mitochondrial dysfunction and might have anti-apoptotic potential by preventing Cytochrome c (Cyt c) release from mitochondria to cytoplasm and caspase 3 activation. It also regulates pro-apoptotic, Bax and anti-apoptotic, Bcl-2 proteins accompanied by glial fibrillary acidic protein (GFAP) positive cells in cortex region. Quantitative Reverse transcription-polymerase chain reaction (qRT-PCR) results also showed that PIP reduced the expression of pro-inflammatory protein, interleukin-1 β (IL-1β) and enhanced cell survival by restoring the activity of brain derived neurotrophic factor (BDNF) and its transcription protein, cAMP response element binding protein (CREB). Taken together, PIP reduced the mitochondrial dysfunction, neurological impairment, and enhanced neuronal survival. In conclusion, our findings reinforce PIP as an effective neuroprotective agent and provide important evidence about its role as a potential target to serve as a promising therapy for treatment of IS.
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Affiliation(s)
- Pooja Kaushik
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Mubashshir Ali
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Mohd Salman
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Heena Tabassum
- Division of Basic Medical Sciences, Indian Council of Medical Research, Ministry of Health and Family Welfare, Government of India, V. Ramalingaswamy Bhawan, New Delhi, 110029, India
| | - Suhel Parvez
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India.
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Bhat IUH, Bhat R. Quercetin: A Bioactive Compound Imparting Cardiovascular and Neuroprotective Benefits: Scope for Exploring Fresh Produce, Their Wastes, and By-Products. BIOLOGY 2021; 10:586. [PMID: 34206761 PMCID: PMC8301140 DOI: 10.3390/biology10070586] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 12/16/2022]
Abstract
Quercetin, a bioactive secondary metabolite, holds incredible importance in terms of bioactivities, which has been proved by in vivo and in vitro studies. The treatment of cardiovascular and neurological diseases by quercetin has been extensively investigated over the past decade. Quercetin is present naturally in appreciable amounts in fresh produce (fruits and vegetables). However, today, corresponding to the growing population and global demand for fresh fruits and vegetables, a paradigm shift and focus is laid towards exploring industrial food wastes and/or byproducts as a new resource to obtain bioactive compounds such as quercetin. Based on the available research reports over the last decade, quercetin has been suggested as a reliable therapeutic candidate for either treating or alleviating health issues, mainly those of cardiovascular and neurological diseases. In the present review, we have summarized some of the critical findings and hypotheses of quercetin from the available databases foreseeing its future use as a potential therapeutic agent to treat cardiovascular and neurological diseases. It is anticipated that this review will be a potential reference material for future research activities to be undertaken on quercetin obtained from fresh produce as well as their respective processing wastes/byproducts that rely on the circular concept.
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Affiliation(s)
- Irshad Ul Haq Bhat
- ERA-Chair for Food (By-) Products Valorisation Technologies (VALORTECH), Estonian University of Life Sciences, 51006 Tartu, Estonia;
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Kaur S, Raj K, Gupta YK, Singh S. Allicin ameliorates aluminium- and copper-induced cognitive dysfunction in Wistar rats: relevance to neuro-inflammation, neurotransmitters and Aβ (1-42) analysis. J Biol Inorg Chem 2021; 26:495-510. [PMID: 34023945 DOI: 10.1007/s00775-021-01866-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 04/19/2021] [Indexed: 12/13/2022]
Abstract
Alzheimer's disease (AD) is a multifactorial neurological disorder associated with neuropathological and neurobehavioral changes, like cognition and memory loss. Pathological hallmarks of AD comprise oxidative stress, formation of insoluble β-amyloid (Aβ) plaques, intracellular neurofibrillary tangles constituted by hyperphosphorylated tau protein (P-tau), neurotransmitters dysbalanced (DA, NE, 5-HT, GABA and Glutamate) and metal deposition. Chronic exposure to metals like aluminium and copper causes accumulation of Aβ plaques, promotes oxidative stress, neuro-inflammation, and degeneration of cholinergic neurons results in AD-like symptoms. In the present study, rats were administered with aluminium chloride (200 mg/kg p.o) and copper sulfate (0.5 mg/kg p.o) alone and in combination for 28 days. Allicin (10 and 20 mg/kg i.p) was administered from day 7 to day 28. Spatial and recognition memory impairment analysis was performed using Morris water maze, Probe trial, and Novel Object Recognition test. Animals were sacrificed on day 29, brain tissue was isolated, and its homogenate was used for biochemical (lipid peroxidation, nitrite, and glutathione), neuro-inflammatory (IL-1β, IL-6 and TNF- α), neurotransmitters (DA, NE, 5-HT, GABA and Glutamate), Aβ(1-42) level, Al concentration estimation, and Na+/K+-ATPase activity. In the present study, aluminium chloride and copper sulfate administration increased oxidative stress, inflammatory cytokines release, imbalanced neurotransmitters' concentration, and promoted β-amyloid accumulation and Na+/K+-ATPase activity. Treatment with allicin dose-dependently attenuated these pathological events via restoration of antioxidants, neurotransmitters concentration, and inhibiting cytokine release and β-amyloid accumulation. Moreover, allicin exhibited the neuroprotective effect through antioxidant, anti-inflammatory, neurotransmitters restoration, attenuation of neuro-inflammation and β-amyloid-induced neurotoxicity.
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Affiliation(s)
- Sunpreet Kaur
- Neuropharmacology Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India
| | - Khadga Raj
- Neuropharmacology Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India
| | - Y K Gupta
- President AIIMs Bhopal, Chairman RAC , ISF College of Pharmacy, Moga, Punjab, 142001, India
| | - Shamsher Singh
- Neuropharmacology Division, Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India.
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23
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Li YP, Chen Z, Cai YH. Piperine protects against myocardial ischemia/reperfusion injury by activating the PI3K/AKT signaling pathway. Exp Ther Med 2021; 21:374. [PMID: 33732347 PMCID: PMC7903478 DOI: 10.3892/etm.2021.9805] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 03/18/2020] [Indexed: 12/12/2022] Open
Abstract
Piperine (PIP) exerts numerous pharmacological effects and its involvement in endoplasmic reticulum (ER) stress (ERS)-led apoptosis has garnered attention. The present study focused on whether PIP played protective effects on hypoxia/reoxygenation (H/R)-induced cardiomyocytes by repressing ERS-led apoptosis. The potential molecular mechanisms in association with the PI3K/AKT signaling pathway were investigated. Primary neonatal rat cardiomyocytes (NRCMs) were isolated and randomized into four groups: Control + vehicle group, control + PIP group, H/R + vehicle group and H/R + PIP group. The H/R injury model was constructed by 4 h of hypoxia induction followed by 6 h of reoxygenation. A total of 10 µM PI3K/AKT inhibitor LY294002 was supplemented to the cells during the experiments. Cell viability and myocardial enzymes were detected to evaluate myocardial damage. A flow cytometry assay was performed to assess apoptotic response. Western blot analysis was performed to detect the expression of related proteins including PI3K, AKT, CHOP, GRP78 and cleaved caspase-12. The results showed that H/R markedly promoted myocardial damage as shown by the increased release of lactate dehydrogenase and creatine kinase levels, but a reduction in cell viability. In addition, ERS-induced apoptosis was markedly promoted by H/R in NRCMs, as shown by the increased apoptotic rates and expression of C/EBP-homologous protein, endoplasmic reticulum chaperone BiP and caspase-12. PIP administration reversed cell injury and ERS-induced apoptosis in H/R. Mechanistic studies concluded that the apoptosis-inhibitory contributions and cardio-favorable effects of PIP were caused partly by the activation of the PI3K/AKT signaling pathway, which was verified by LY294002 administration. To conclude, PIP can reduce ERS-induced apoptosis by activating the PI3K/AKT signaling pathway during the process of H/R injury, which could be a potential therapeutic target for the treatment of myocardial ischemia/reperfusion injury.
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Affiliation(s)
- Yun-Peng Li
- Department of Cardiovasology, Affiliated Dongfeng Hospital, Hubei University of Medicine, Shiyan, Hubei 442008, P.R. China
| | - Zhen Chen
- Department of Emergency and Evidence-Based Medicine, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Yu-Hua Cai
- Department of Cardiovasology, Jingzhou First Municipal Hospital, Jingzhou, Hubei 434000, P.R. China
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Giuliano C, Cerri S, Blandini F. Potential therapeutic effects of polyphenols in Parkinson's disease: in vivo and in vitro pre-clinical studies. Neural Regen Res 2021; 16:234-241. [PMID: 32859769 PMCID: PMC7896204 DOI: 10.4103/1673-5374.290879] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Parkinson’s disease is a neurodegenerative disorder characterized by a combination of severe motor and non-motor symptoms. Over the years, several factors have been discovered to play a role in the pathogenesis of this disease, in particular, neuroinflammation and oxidative stress. To date, the pharmacological treatments used in Parkinson’s disease are exclusively symptomatic. For this reason, in recent years, the research has been directed towards the discovery and study of new natural molecules to develop potential neuroprotective therapies against Parkinson’s disease. In this context, natural polyphenols have raised much attention for their important anti-inflammatory and antioxidant properties, but also for their ability to modulate protein misfolding. In this review, we propose to summarize the relevant in vivo and in vitro studies concerning the potential therapeutic role of natural polyphenols in Parkinson’s disease.
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Affiliation(s)
- Claudio Giuliano
- Laboratory of Cellular and Molecular Neurobiology, IRCCS Mondino Foundation, Pavia, Italy
| | - Silvia Cerri
- Laboratory of Cellular and Molecular Neurobiology, IRCCS Mondino Foundation, Pavia, Italy
| | - Fabio Blandini
- Laboratory of Cellular and Molecular Neurobiology, IRCCS Mondino Foundation, Pavia, Italy
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25
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Liu Y, Zhu D, Luo J, Chen X, Gao L, Liu W, Chen T. NIR-II-Activated Yolk–Shell Nanostructures as an Intelligent Platform for Parkinsonian Therapy. ACS APPLIED BIO MATERIALS 2020; 3:6876-6887. [DOI: 10.1021/acsabm.0c00794] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yao Liu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Daoming Zhu
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Jingshan Luo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Xiaojia Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Liqian Gao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Wei Liu
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Tongkai Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
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26
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Oxiracetam and Zinc Ameliorates Autism-Like Symptoms in Propionic Acid Model of Rats. Neurotox Res 2020; 37:815-826. [PMID: 32026359 DOI: 10.1007/s12640-020-00169-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 01/03/2020] [Accepted: 01/22/2020] [Indexed: 12/28/2022]
Abstract
Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder characterized by restrictive behaviour, deficit in social skills and interaction. The multifactorial etiology, complex pathophysiology and different combination of symptoms (unusual speech patterns, frequent repetition of phrases) make it difficult to treat. Thus, present study aimed to find the protective effects of oxiracetam alone and in combination with zinc on brain behavioral, biochemical, pro-inflammatory cytokines and neurotransmitters level. Rats were administered with propionic acid (250 mg/kg p.o.) for 3 days and immediately on next day treatment were given with oxiracetam (25, 50 mg/kg i.p), zinc (4 mg/kg) as well as oxiracetam (25 mg/kg i.p) in combination with zinc (4 mg/kg p.o). Behavioral parameters were performed from 22th to 28th day. On 29th day, all the animals were sacrificed by cervical dislocation and the brain was preserved for biochemical (LPO, GSH, nitrite, mitochondrial complex I, IV and cAMP), neuroinflammatory (TNF-α, IL-1β, IL-6) and neurotransmitters (5-HT, GABA, glutamate and acetylcholine) analysis. The propionic acid administration showed memory impairment, restrictive behavior, increased proinflammatory cytokines level, biochemical and neurotransmitters alteration. However, treatment with oxiracetam alone and in combination with zinc significantly attenuated behavioral, biochemical, inflammatory cytokines and restored neurotransmitters level. The finding of present study demonstrated that oxiracetam alone and in combination with zinc afforded superior anti-autistic effect through antioxidant, anti-inflammatory and anti-excitotoxic mechanisms and could serve as attractive strategy in managing autism.
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Ren T, Zuo Z. Role of piperine in CNS diseases: pharmacodynamics, pharmacokinetics and drug interactions. Expert Opin Drug Metab Toxicol 2019; 15:849-867. [DOI: 10.1080/17425255.2019.1672658] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Tianjing Ren
- School of Pharmacy, The Chinese University of Hong Kong, Hong Kong, P. R. China
| | - Zhong Zuo
- School of Pharmacy, The Chinese University of Hong Kong, Hong Kong, P. R. China
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28
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Ren J, Yuan L, Wang W, Zhang M, Wang Q, Li S, Zhang L, Hu K. Tricetin protects against 6-OHDA-induced neurotoxicity in Parkinson's disease model by activating Nrf2/HO-1 signaling pathway and preventing mitochondria-dependent apoptosis pathway. Toxicol Appl Pharmacol 2019; 378:114617. [DOI: 10.1016/j.taap.2019.114617] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 06/03/2019] [Accepted: 06/05/2019] [Indexed: 12/22/2022]
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29
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Metal Chelation Therapy and Parkinson's Disease: A Critical Review on the Thermodynamics of Complex Formation between Relevant Metal Ions and Promising or Established Drugs. Biomolecules 2019; 9:biom9070269. [PMID: 31324037 PMCID: PMC6681387 DOI: 10.3390/biom9070269] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/03/2019] [Accepted: 07/04/2019] [Indexed: 12/14/2022] Open
Abstract
The present review reports a list of approximately 800 compounds which have been used, tested or proposed for Parkinson’s disease (PD) therapy in the year range 2014–2019 (April): name(s), chemical structure and references are given. Among these compounds, approximately 250 have possible or established metal-chelating properties towards Cu(II), Cu(I), Fe(III), Fe(II), Mn(II), and Zn(II), which are considered to be involved in metal dyshomeostasis during PD. Speciation information regarding the complexes formed by these ions and the 250 compounds has been collected or, if not experimentally available, has been estimated from similar molecules. Stoichiometries and stability constants of the complexes have been reported; values of the cologarithm of the concentration of free metal ion at equilibrium (pM), and of the dissociation constant Kd (both computed at pH = 7.4 and at total metal and ligand concentrations of 10−6 and 10−5 mol/L, respectively), charge and stoichiometry of the most abundant metal–ligand complexes existing at physiological conditions, have been obtained. A rigorous definition of the reported amounts is given, the possible usefulness of this data is described, and the need to characterize the metal–ligand speciation of PD drugs is underlined.
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