1
|
Zhang Z, Li J, Wang Y, Tang C, Zhou Y, Li J, Lu X, Wang Y, Ma T, Xu H, Li X. Angiopep-2 conjugated biomimetic nano-delivery system loaded with resveratrol for the treatment of methamphetamine addiction. Int J Pharm 2024; 663:124552. [PMID: 39111355 DOI: 10.1016/j.ijpharm.2024.124552] [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: 03/20/2024] [Revised: 07/22/2024] [Accepted: 08/02/2024] [Indexed: 08/11/2024]
Abstract
Methamphetamine (METH) addiction can damage the central nervous system, resulting in cognitive impairment and memory deficits. Low target effects have limited the utility of anti-addiction drugs because the presence of the blood-brain barrier hinders the effective delivery of drugs to the brain. Angiopep-2 can recognize and target low-density lipoprotein receptor-associated protein 1 (LRP-1) on the surface of cerebral capillary endothelial cells, causing cross-cell phagocytosis, and thus has high blood-brain barrier transport capacity. Resveratrol (RSV) has been found to be a neuroprotective agent in many nervous system diseases. In our study, we modified Angiopep-2 on the surface of the erythrocyte membrane to obtain a modified erythrocyte membrane (Ang-RBCm) and coated RSV-loaded poly(ε-caprolactone)-poly(ethylene glycol) (PCL-PEG) nanoparticles with Ang-RBCm (Ang-RBCm@RSVNPs) to treat METH addiction. Our results showed that Ang-RBCm@RSVNPs can penetrate the blood-brain barrier and accumulate in the brain better than free RSV. Besides, mice treatetd with Ang-RBCm@RSVNPs showed less preference to METH-paired chamber and no noticeable tissue toxicity or abnormality was found in H&E staining images. Electrophysiological experiments demonstrated Ang-RBCm@RSVNPs could elevate synaptic plasticity impaired by METH. These indicated that Ang-RBCm@RSVNPs has better anti-addiction and neuroprotective effects. Therefore, Ang-RBCm@RSVNPs has great potential in the treatment of METH addiction.
Collapse
Affiliation(s)
- Ziting Zhang
- Department of Geriatircs, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, Jiangsu, China
| | - Jiaxin Li
- Institute for Stem Cell and Neural Regeneration and Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Yanling Wang
- Department of Pharmacy, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 211116, China
| | - Chunming Tang
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Yao Zhou
- Institute for Stem Cell and Neural Regeneration and Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Jinyu Li
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Xiaowei Lu
- Department of Geriatircs, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, Jiangsu, China
| | - Yijun Wang
- Department of Pharmacy, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 211116, China.
| | - Tengfei Ma
- Institute for Stem Cell and Neural Regeneration and Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing 211166, Jiangsu, China.
| | - Huae Xu
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, Jiangsu, China.
| | - Xiaolin Li
- Department of Geriatircs, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, Jiangsu, China.
| |
Collapse
|
2
|
Pal R, Mukherjee S, Khan A, Nathani M, Maji S, Tandey R, Das S, Patra A, Mandal V. A critical appraisal on the involvement of plant-based extracts as neuroprotective agents (2012-2022): an effort to ease out decision-making process for researchers. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03266-6. [PMID: 38985312 DOI: 10.1007/s00210-024-03266-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 06/28/2024] [Indexed: 07/11/2024]
Abstract
The purpose of this review study is to provide a condensed compilation of 164 medicinal plants that have been investigated for their neuroprotective aspects by researchers between the years 2012 and 2022 which also includes a recent update of 2023-2024. After using certain keywords to retrieve the data from SCOPUS, it was manually sorted to eliminate any instances of duplication. The article is streamlined into three major segments. The first segment takes a dig into the current global trend and attempts to decrypt vital information related to plant names, families, plant parts used, and neurological disorders investigated. The second segment of the article makes an attempt to present a comprehensive insight into the various mechanistic pathways through which phytochemicals can intervene to exert neuroprotection. The final segment of the manuscript is a bibliometric appraisal of all researches conducted. The study is based on 256 handpicked articles based on decided inclusion criteria. Illustrative compilation of various pathways citing their activation and deactivation channels are also presented with possible hitting points of various phytochemicals. The present study employed Microsoft Excel 2019 and VOS viewer as data visualisation tools.
Collapse
Affiliation(s)
- Riya Pal
- Department of Pharmacy, Guru Ghasidas Central University, Bilaspur, C.G, 495009, India
| | - Souvik Mukherjee
- Department of Pharmacy, Guru Ghasidas Central University, Bilaspur, C.G, 495009, India
| | - Altamash Khan
- Department of Pharmacy, Guru Ghasidas Central University, Bilaspur, C.G, 495009, India
| | - Mansi Nathani
- Department of Pharmacy, Guru Ghasidas Central University, Bilaspur, C.G, 495009, India
| | - Sayani Maji
- Department of Pharmacy, Guru Ghasidas Central University, Bilaspur, C.G, 495009, India
| | - Roshni Tandey
- Department of B. Pharm Ayurveda, Delhi Pharmaceutical Sciences and Research University, Sector-3, MB Road, Pushp Vihar, New Delhi, 110017, India
| | - Sinchan Das
- Department of Pharmacy, Guru Ghasidas Central University, Bilaspur, C.G, 495009, India
| | - Arjun Patra
- Department of Pharmacy, Guru Ghasidas Central University, Bilaspur, C.G, 495009, India
| | - Vivekananda Mandal
- Department of Pharmacy, Guru Ghasidas Central University, Bilaspur, C.G, 495009, India.
| |
Collapse
|
3
|
Wang Y, Huang Y, Ma A, You J, Miao J, Li J. Natural Antioxidants: An Effective Strategy for the Treatment of Alzheimer's Disease at the Early Stage. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:11854-11870. [PMID: 38743017 DOI: 10.1021/acs.jafc.4c01323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The critical role of oxidative stress in Alzheimer's disease (AD) has been recognized by researchers recently, and natural antioxidants have been demonstrated to have anti-AD activity in animal models, such as Ginkgo biloba extract, soy isoflavones, lycopene, and so on. This paper summarized these natural antioxidants and points out that natural antioxidants always have multiple advantages which are help to deal with AD, such as clearing free radicals, regulating signal transduction, protecting mitochondrial function, and synaptic plasticity. Based on the available data, we have created a relatively complete pathway map of reactive oxygen species (ROS) and AD-related targets and concluded that oxidative stress caused by ROS is the core of AD pathogenesis. In the prospect, we introduced the concept of a combined therapeutic strategy, termed "Antioxidant-Promoting Synaptic Remodeling," highlighting the integration of antioxidant interventions with synaptic remodeling approaches as a novel avenue for therapeutic exploration.
Collapse
Affiliation(s)
- Yifeng Wang
- School of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830000, PR China
| | - Yan Huang
- School of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830000, PR China
| | - Aixia Ma
- School of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830000, PR China
| | - Jiahe You
- School of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830000, PR China
| | - Jing Miao
- School of Pharmaceutical Sciences and Institute of Materia Medica, Xinjiang University, Urumqi, Xinjiang 830000, PR China
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, Xinjiang University, Urumqi, Xinjiang 830000, PR China
- National Demonstration Center for Experimental Biology Education, Xinjiang University, Urumqi, Xinjiang 830000, PR China
| | - Jinyao Li
- School of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830000, PR China
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, Xinjiang University, Urumqi, Xinjiang 830000, PR China
- National Demonstration Center for Experimental Biology Education, Xinjiang University, Urumqi, Xinjiang 830000, PR China
| |
Collapse
|
4
|
Bahena Culhuac E, Bello M. Unveiling the Mechanisms of EGCG-p53 Interactions through Molecular Dynamics Simulations. ACS OMEGA 2024; 9:20066-20085. [PMID: 38737068 PMCID: PMC11080030 DOI: 10.1021/acsomega.3c10523] [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: 12/30/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 05/14/2024]
Abstract
Green tea consumption is associated with protective and preventive effects against various types of cancer. These effects are attributed to polyphenols, particularly epigallocatechin-3-gallate (EGCG). EGCG acts by directly inhibiting tumor suppressor protein p53. The binding mechanism by which EGCG inhibits p53 activity is associated with residues Trp23-Lys24 and Pro47-Thr55 within the p53 N-terminal domain (NTD). However, the structural and thermodynamic aspects of the interaction between EGCG and p53 are poorly understood. Therefore, based on crystallographic data, we combine docking, molecular dynamics (MD) simulations, and molecular mechanics generalized Born surface area approaches to explore the intricacies of the EGCG-p53 binding mechanism. A triplicate microsecond MD simulation for each system is initially performed to capture diverse p53 NTD conformations. From the start, the most populated cluster of the second run (R2-1) stands out due to a unique opening between Trp23 and Trp53. During MD simulations, this conformation allows EGCG to sustain a high level of stability and affinity while interacting with both regions of interest and deepening the binding pocket. Structural analysis emphasizes the significance of pyrogallol motifs in EGCG binding. Therefore, the conformational shift in this gap is pivotal, enabling EGCG to impede p53 interactions and manifest its anticancer properties. These findings enhance the present comprehension of the anticancer properties of green tea polyphenols and pave the way for future therapeutic developments.
Collapse
Affiliation(s)
- Erick Bahena Culhuac
- Laboratorio
de Diseño y Desarrollo de Nuevos Fármacos e Innovación
Biotecnológica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
- Universidad
Autónoma del Estado de México Facultad de Ciencias, Toluca 50000, Mexico
| | - Martiniano Bello
- Laboratorio
de Diseño y Desarrollo de Nuevos Fármacos e Innovación
Biotecnológica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
| |
Collapse
|
5
|
Ayaz M, Mosa OF, Nawaz A, Hamdoon AAE, Elkhalifa MEM, Sadiq A, Ullah F, Ahmed A, Kabra A, Khan H, Murthy HCA. Neuroprotective potentials of Lead phytochemicals against Alzheimer's disease with focus on oxidative stress-mediated signaling pathways: Pharmacokinetic challenges, target specificity, clinical trials and future perspectives. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 124:155272. [PMID: 38181530 DOI: 10.1016/j.phymed.2023.155272] [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: 04/04/2023] [Revised: 11/05/2023] [Accepted: 12/10/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Alzheimer's diseases (AD) and dementia are among the highly prevalent neurological disorders characterized by deposition of beta amyloid (Aβ) plaques, dense deposits of highly phosphorylated tau proteins, insufficiency of acetylcholine (ACh) and imbalance in glutamatergic system. Patients typically experience cognitive, behavioral alterations and are unable to perform their routine activities. Evidence also suggests that inflammatory processes including excessive microglia activation, high expression of inflammatory cytokines and release of free radicals. Thus, targeting inflammatory pathways beside other targets might be the key factors to control- disease symptoms and progression. PURPOSE This review is aimed to highlight the mechanisms and pathways involved in the neuroprotective potentials of lead phytochemicals. Further to provide updates regarding challenges associated with their use and their progress into clinical trials as potential lead compounds. METHODS Most recent scientific literature on pre-clinical and clinical data published in quality journals especially on the lead phytochemicals including curcumin, catechins, quercetin, resveratrol, genistein and apigenin was collected using SciFinder, PubMed, Google Scholar, Web of Science, JSTOR, EBSCO, Scopus and other related web sources. RESULTS Literature review indicated that the drug discovery against AD is insufficient and only few drugs are clinically approved which have limited efficacy. Among the therapeutic options, natural products have got tremendous attraction owing to their molecular diversity, their safety and efficacy. Research suggest that natural products can delay the disease onset, reduce its progression and regenerate the damage via their anti-amyloid, anti-inflammatory and antioxidant potentials. These agents regulate the pathways involved in the release of neurotrophins which are implicated in neuronal survival and function. Highly potential lead phytochemicals including curcumin, catechins, quercetin, resveratrol, genistein and apigenin regulate neuroprotective signaling pathways implicated in neurotrophins-mediated activation of tropomyosin receptor kinase (Trk) and p75 neurotrophins receptor (p75NTR) family receptors. CONCLUSIONS Phytochemicals especially phenolic compounds were identified as highly potential molecules which ameliorate oxidative stress induced neurodegeneration, reduce Aβ load and inhibit vital enzymes. Yet their clinical efficacy and bioavailability are the major challenges which need further interventions for more effective therapeutic outcomes.
Collapse
Affiliation(s)
- Muhammad Ayaz
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara, 18000 Dir (L), KP, Pakistan.
| | - Osama F Mosa
- Public health Department, Health Sciences College at Lieth, Umm Al Qura University, Makkah, KSA
| | - Asif Nawaz
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara, 18000 Dir (L), KP, Pakistan
| | - Alashary Adam Eisa Hamdoon
- Public health Department, Health Sciences College at Lieth, Umm Al Qura University, Makkah, KSA; University of Khartoum, Faculty of Public and Environmental Health, Sudan
| | - Modawy Elnour Modawy Elkhalifa
- Public health Department, Health Sciences College at Lieth, Umm Al Qura University, Makkah, KSA; University of Khartoum, Faculty of Public and Environmental Health, Sudan
| | - Abdul Sadiq
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara, 18000 Dir (L), KP, Pakistan
| | - Farhat Ullah
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara, 18000 Dir (L), KP, Pakistan
| | - Alshebli Ahmed
- Public health Department, Health Sciences College at Lieth, Umm Al Qura University, Makkah, KSA; University of Khartoum, Faculty of Public and Environmental Health, Sudan
| | - Atul Kabra
- University Institute of Pharma Sciences, Chandigarh University, Gharuan, Mohali, Punjab, India
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, Pakistan
| | - H C Ananda Murthy
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888, Adama, Ethiopia; Department of Prosthodontics, Saveetha Dental College & Hospital, Saveetha Institute of Medical and technical science (SIMATS), Saveetha University, Chennai-600077, Tamil Nadu, India
| |
Collapse
|
6
|
Chagas Monteiro KL, dos Santos Alcântara MG, de Aquino TM, Ferreira da Silva-Júnior E. Insights on Natural Products Against Amyotrophic Lateral Sclerosis (ALS). Curr Neuropharmacol 2024; 22:1169-1188. [PMID: 38708921 PMCID: PMC10964095 DOI: 10.2174/1570159x22666231016153606] [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: 11/28/2022] [Revised: 07/13/2023] [Accepted: 07/16/2023] [Indexed: 05/07/2024] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease that causes the death of motor neurons and consequent muscle paralysis. Despite many efforts to address it, current therapy targeting ALS remains limited, increasing the interest in complementary therapies. Over the years, several herbal preparations and medicinal plants have been studied to prevent and treat this disease, which has received remarkable attention due to their blood-brain barrier penetration properties and low toxicity. Thus, this review presents the therapeutic potential of a variety of medicinal herbs and their relationship with ALS and their physiopathological pathways.
Collapse
Affiliation(s)
- Kadja Luana Chagas Monteiro
- Research Group on Therapeutic Strategies - GPET, Laboratory of Synthesis and Research in Medicinal Chemistry - LSPMED, Institute of Chemistry and Biotechnology, Federal University of Alagoas, 57072-970, Maceió, Alagoas, Brazil
| | - Marcone Gomes dos Santos Alcântara
- Research Group on Therapeutic Strategies - GPET, Laboratory of Synthesis and Research in Medicinal Chemistry - LSPMED, Institute of Chemistry and Biotechnology, Federal University of Alagoas, 57072-970, Maceió, Alagoas, Brazil
| | - Thiago Mendonça de Aquino
- Research Group on Therapeutic Strategies - GPET, Laboratory of Synthesis and Research in Medicinal Chemistry - LSPMED, Institute of Chemistry and Biotechnology, Federal University of Alagoas, 57072-970, Maceió, Alagoas, Brazil
| | | |
Collapse
|
7
|
Amidfar M, Garcez ML, Askari G, Bagherniya M, Khorvash F, Golpour-Hamedani S, de Oliveira J. Role of BDNF Signaling in the Neuroprotective and Memory-enhancing Effects of Flavonoids in Alzheimer's Disease. CNS & NEUROLOGICAL DISORDERS DRUG TARGETS 2024; 23:984-995. [PMID: 37702162 DOI: 10.2174/1871527323666230912090856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/27/2023] [Accepted: 07/18/2023] [Indexed: 09/14/2023]
Abstract
BACKGROUND Foods rich in flavonoids are associated with a reduced risk of various chronic diseases, including Alzheimer's disease (AD). In fact, growing evidence suggests that consuming flavonoid- rich foods can beneficially affect normal cognitive function. Animal models have shown that many flavonoids prevent the development of AD-like pathology and improve cognitive deficits. OBJECTIVE Identifying the molecular causes underlying the memory-enhancing effect of flavonoid-rich foods makes it possible to provide the best diet to prevent cognitive decline associated with aging and Alzheimer's disease. Based on the most recent scientific literature, this review article critically examines the therapeutic role of dietary flavonoids in ameliorating and preventing the progression of AD and enhancement of memory with a focus on the role of the BDNF signaling pathway. METHODS The databases of PubMed, Web of Science, Google Scholar, and Scopus were searched up to March 2023 and limited to English language. Search strategies were using the following keywords in titles and abstracts: (Flavonoid-rich foods OR Flavonoids OR Polyphenols); AND (Brain-Derived Neurotrophic Factor OR BDNF OR CREB OR) AND (Alzheimer's disease OR memory OR cognition OR). RESULTS Flavonoid-rich foods including green tea, berries, curcumin and pomegranate exert their beneficial effects on memory decline associated with aging and Alzheimer's disease mostly through the direct interaction with BDNF signaling pathway. CONCLUSION The neuroprotective effects of flavonoid-rich foods through the CREB-BDNF mechanism have the potential to prevent or limit memory decline due to aging and Alzheimer's disease, so their consumption throughout life may prevent age-related cognitive impairment.
Collapse
Affiliation(s)
- Meysam Amidfar
- Nutrition and Food Security Research Center, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Michelle Lima Garcez
- Graduate Program of Research and Extension (CEPEG), University Center of Espirito Santo, Espírito Santo, Brazil
| | - Gholamreza Askari
- Nutrition and Food Security Research Center, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Bagherniya
- Nutrition and Food Security Research Center, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fariborz Khorvash
- Department of Neurology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sahar Golpour-Hamedani
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jade de Oliveira
- Postgraduate Program in Biological Sciences: Biochemistry, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| |
Collapse
|
8
|
Bhusal CK, Uti DE, Mukherjee D, Alqahtani T, Alqahtani S, Bhattacharya A, Akash S. Unveiling Nature's potential: Promising natural compounds in Parkinson's disease management. Parkinsonism Relat Disord 2023; 115:105799. [PMID: 37633805 DOI: 10.1016/j.parkreldis.2023.105799] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/25/2023] [Accepted: 08/04/2023] [Indexed: 08/28/2023]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disorder characterized by the progressive degeneration of dopaminergic neurons in the substantia nigra pars compacta. Although the exact etiology of PD remains elusive, growing evidence suggests a complex interplay of genetic, environmental, and lifestyle factors in its development. Despite advances in pharmacological interventions, current treatments primarily focus on managing symptoms rather than altering the disease's underlying course. In recent years, natural phytocompounds have emerged as a promising avenue for PD management. Phytochemicals derived from plants, such as phenolic acids, flavones, phenols, flavonoids, polyphenols, saponins, terpenes, alkaloids, and amino acids, have been extensively studied for their potential neuroprotective effects. These bioactive compounds possess a wide range of therapeutic properties, including antioxidant, anti-inflammatory, anti-apoptotic, and anti-aggregation activities, which may counteract the neurodegenerative processes in PD. This comprehensive review delves into the pathophysiology of PD, with a specific focus on the roles of oxidative stress, mitochondrial dysfunction, and protein malfunction in disease pathogenesis. The review collates a wealth of evidence from preclinical studies and in vitro experiments, highlighting the potential of various phytochemicals in attenuating dopaminergic neuron degeneration, reducing α-synuclein aggregation, and modulating neuroinflammatory responses. Prominent among the natural compounds studied are curcumin, resveratrol, coenzyme Q10, and omega-3 fatty acids, which have demonstrated neuroprotective effects in experimental models of PD. Additionally, flavonoids like baicalein, luteolin, quercetin, and nobiletin, and alkaloids such as berberine and physostigmine, show promise in mitigating PD-associated pathologies. This review emphasizes the need for further research through controlled clinical trials to establish the safety and efficacy of these natural compounds in PD management. Although preclinical evidence is compelling, the translation of these findings into effective therapies for PD necessitates robust clinical investigation. Rigorous evaluation of pharmacokinetics, bioavailability, and potential drug interactions is imperative to pave the way for evidence-based treatment strategies. With the rising interest in natural alternatives and the potential for synergistic effects with conventional therapies, this review serves as a comprehensive resource for pharmaceutical industries, researchers, and clinicians seeking novel therapeutic approaches to combat PD. Harnessing the therapeutic potential of these natural phytocompounds may hold the key to improving the quality of life for PD patients and moving towards disease-modifying therapies in the future.
Collapse
Affiliation(s)
- Chandra Kanta Bhusal
- Post Graduate Institute of Medical and Research, Madhya Marg, Sector 12, Chandigarh, 160012, India.
| | - Daniel Ejim Uti
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, Federal University of Health Sciences, Otukpo, Benue State, Nigeria.
| | - Dattatreya Mukherjee
- Raiganj Government Medical College and Hospital, Uttar Dinajpur, West Bengal, India.
| | - Taha Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, 62529, Saudi Arabia.
| | - Saud Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, 62529, Saudi Arabia.
| | - Arghya Bhattacharya
- Department of Pharmacology, Calcutta Institute of Pharmaceutical Technology and Allied Health Science, Uluberia, Howrah, 711316, India.
| | - Shopnil Akash
- Faculty of Allied Health Science, Department of Pharmacy, Daffodil International University, Daffodil Smart City, Ashulia, Savar, Dhaka, 1207, Bangladesh.
| |
Collapse
|
9
|
Zhang W, Dong X, Huang R. Antiparkinsonian Effects of Polyphenols: A Narrative Review with a Focus on the Modulation of the Gut-brain Axis. Pharmacol Res 2023:106787. [PMID: 37224894 DOI: 10.1016/j.phrs.2023.106787] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 04/23/2023] [Accepted: 05/02/2023] [Indexed: 05/26/2023]
Abstract
Polyphenols, which are naturally occurring bioactive compounds in fruits and vegetables, are emerging as potential therapeutics for neurological disorders such as Parkinson's disease (PD). Polyphenols have diverse biological activities, such as anti-oxidative, anti-inflammatory, anti-apoptotic, and α-synuclein aggregation inhibitory effects, which could ameliorate PD pathogenesis. Studies have shown that polyphenols are capable of regulating the gut microbiota (GM) and its metabolites; in turn, polyphenols are extensively metabolized by the GM, resulting in the generation of bioactive secondary metabolites. These metabolites may regulate various physiological processes, including inflammatory responses, energy metabolism, intercellular communication, and host immunity. With increasing recognition of the importance of the microbiota-gut-brain axis (MGBA) in PD etiology, polyphenols have attracted growing attention as MGBA regulators. In order to address the potential therapeutic role of polyphenolic compounds in PD, we focused on MGBA. DATA AVAILABILITY: Data will be made available on request.
Collapse
Affiliation(s)
- Wei Zhang
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, Liaoning PR, China
| | - Xiaoyu Dong
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, Liaoning PR, China
| | - Rui Huang
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, Liaoning PR, China.
| |
Collapse
|
10
|
Kim JE, Kim TH, Kang TC. EGCG Attenuates CA1 Neuronal Death by Regulating GPx1, NF-κB S536 Phosphorylation and Mitochondrial Dynamics in the Rat Hippocampus following Status Epilepticus. Antioxidants (Basel) 2023; 12:antiox12040966. [PMID: 37107343 PMCID: PMC10136286 DOI: 10.3390/antiox12040966] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/10/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Epigallocatechin-3-gallate (EGCG) is an antioxidant that directly scavenges reactive oxygen species (ROS) and inhibits pro-oxidant enzymes. Although EGCG protects hippocampal neurons from status epilepticus (SE, a prolonged seizure activity), the underlying mechanisms are not fully understood. As the preservation of mitochondrial dynamics is essential for cell viability, it is noteworthy to elucidate the effects of EGCG on impaired mitochondrial dynamics and the related signaling pathways in SE-induced CA1 neuronal degeneration, which are yet unclear. In the present study, we found that EGCG attenuated SE-induced CA1 neuronal death, accompanied by glutathione peroxidase-1 (GPx1) induction. EGCG also abrogated mitochondrial hyperfusion in these neurons by the preservation of extracellular signal-regulated kinase 1/2 (ERK1/2)-dynamin-related protein 1 (DRP1)-mediated mitochondrial fission, independent of c-Jun N-terminal kinase (JNK) activity. Furthermore, EGCG abolished SE-induced nuclear factor-κB (NF-κB) serine (S) 536 phosphorylation in CA1 neurons. ERK1/2 inhibition by U0126 diminished the effect of EGCG on neuroprotection and mitochondrial hyperfusion in response to SE without affecting GPx1 induction and NF-κB S536 phosphorylation, indicating that the restoration of ERK1/2-DRP1-mediated fission may be required for the neuroprotective effects of EGCG against SE. Therefore, our findings suggest that EGCG may protect CA1 neurons from SE insults through GPx1-ERK1/2-DRP1 and GPx1-NF-κB signaling pathways, respectively.
Collapse
Affiliation(s)
- Ji-Eun Kim
- Department of Anatomy and Neurobiology, Institute of Epilepsy Research, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
| | - Tae-Hyun Kim
- Department of Anatomy and Neurobiology, Institute of Epilepsy Research, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
| | - Tae-Cheon Kang
- Department of Anatomy and Neurobiology, Institute of Epilepsy Research, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
| |
Collapse
|
11
|
Mandil R, Prakash A, Rahal A, Koli S, Kumar R, Garg SK. Evaluation of oxidative stress-mediated cytotoxicity and genotoxicity of copper and flubendiamide: amelioration by antioxidants in vivo and in vitro. Toxicol Res (Camb) 2023; 12:232-252. [PMID: 37125329 PMCID: PMC10141782 DOI: 10.1093/toxres/tfad011] [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: 07/05/2022] [Revised: 12/03/2022] [Accepted: 01/30/2023] [Indexed: 03/09/2023] Open
Abstract
Present study was designed to evaluate toxic effects of copper (Cu) (@ 33 mg/kg b.wt.) and flubendimide (Flb) (@ 200 mg/kg b.wt.) alone and/or in combination on blood-biochemical indices, oxidative stress, and drug metabolizing enzymes (DMEs) in vivo in male Wistar rats following oral exposure continuously for 90 days and their immunotoxic (cyto-genotoxic and apoptotic) potential in vitro on thymocytes. In in vivo study, ameliorative potential of α-tocopherol was assessed, whereas α-tocopherol, curcumin, resveratrol, and catechin were evaluated for protective effect in vitro. Significantly (P < 0.05) increased AST activity and increment in total bilirubin, uric acid, creatinine, and BUN levels; however, reduction in total protein, GSH content, reduced activities of SOD and GST, and increased lipid peroxidation and GPx activity with severe degenerative changes in histopathological examination of liver and kidney in group of Cu and Flb were observed. Treatment with α-tocopherol improved biochemical variables, redox status, and histoarchitecture of liver and kidney tissues. Reduced hepatic CYP450, CYPb5, APH, UGT, and GST activities observed in both Cu and α-tocopherol alone and their combination groups, whereas significant increment in Flb alone, while α-tocopherol in combination with xenobiotics improved the activities of hepatic DMEs. Primary cell culture of thymocytes (106 cells/ml) exposed to Cu and Flb each @ 40 μM increased TUNEL+ve cells, micronuclei induction, DNA shearing, and comet formation establishes their apoptotic and genotoxic potential, whereas treatment with antioxidants showed concentration-dependent significant reduction and their order of potency on equimolar concentration (10 μM) basis is: curcumin > resveratrol > catechin = α-tocopherol.
Collapse
Affiliation(s)
- Rajesh Mandil
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut 250110, India
| | - Atul Prakash
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut 250110, India
| | - Anu Rahal
- Central Institute for Research on Goat (CIRG), Makhdoom, Farah, Mathura 281122, India
| | - Swati Koli
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut 250110, India
| | - Rahul Kumar
- Department of Veterinary Pathology, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyay Pashu Chikitsa Vigyan Vishvidyalay Evam Go- Anushandhan Sansthan (DUVASU), Near Civil Line, Mathura 281001, India
| | - Satish K Garg
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut 250110, India
| |
Collapse
|
12
|
Perdigão JM, Teixeira BJB, Carvalho-da-Silva V, Prediger RD, Lima RR, Rogez H. A critical analysis on the concentrations of phenolic compounds tested using in vitro and in vivo Parkinson's disease models. Crit Rev Food Sci Nutr 2023; 64:6596-6615. [PMID: 36718558 DOI: 10.1080/10408398.2023.2171960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Phenolic compounds (PCs) have neuroprotective effects with potential to prevent or slower the progression of Parkinson's disease (PD). However, whether the PCs neuroprotective effects can be observed under their dietary concentrations remains unclear. Therefore, we searched for the most cited articles in density on PCs and PD in the Web of Science Core Collection and All-Database (WoS-CC/AD) and selected the articles based on our eligibility criteria. From these 81 articles selected, we extracted information on experimental design, compounds tested, concentration and/or dose administered, route of administration, and main results obtained. We compared the concentrations of PCs evaluated in vitro with the concentrations bioavailable in the human bloodstream. Further, after extrapolation to humans, we compared the doses administered to animals in vivo with the daily consumed amounts of PCs. Concentrations evaluated in 21 in vitro laboratory studies were higher than those bioavailable in the bloodstream. In the case of in vivo laboratory studies, only one study administered doses of PCs in normal daily amount. The results of the comparisons demonstrate that the neuroprotective effects of the selected articles are mainly associated with concentrations, amounts and routes of administration that do not correspond to the consumption of phenolic compounds through the diet.
Collapse
Affiliation(s)
- José Messias Perdigão
- Centre for Valorization of Amazonian Bioactive Compounds, Federal University of Pará, Belém, Brazil
| | | | | | - Rui Daniel Prediger
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Herve Rogez
- Centre for Valorization of Amazonian Bioactive Compounds, Federal University of Pará, Belém, Brazil
| |
Collapse
|
13
|
Özduran G, Becer E, Vatansever HS. The Role and Mechanisms of Action of Catechins in Neurodegenerative Diseases. JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2023; 42:67-74. [PMID: 34817304 DOI: 10.1080/07315724.2021.1981487] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The prevalence, incidence and mortality rates of neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease are gradually increasing. New approaches are being developed to manage the progression and treatment of neurodegenerative diseases. Catechins, polyphenolic compounds, are key compounds that demonstrate therapeutic effects with their properties such as antioxidant, anti-inflammatory, anti-apoptotic properties in the prevention and treatment of neurodegenerative diseases. The therapeutic effects of catechins have been exhaustively studied in human and animal models. Catechins can have anti-inflammatory effects by suppressing inflammatory pathways and cytokines, as well as antioxidant effects such as chelating metal ions and scavenging radicals. They might reduce phosphorylation of tau proteins, aggregation of amyloid-beta and apoptotic proteins release. They can also decrease alpha-synuclein accumulation and increase dopamine levels. With all these effects, they can have an effect on neurodegenerative diseases. This review points to the potential mechanisms of catechins in neurodegenerative diseases, based on their findings in the literature review.Key teaching pointsCatechins can reduce amyloid-β plaque aggregation and tau phosphorylation.Catechins can decrease alfa-synuclein levels.Catechins can protect neuronal cells with their anti-apoptotic effect.More comprehensive studies are needed to clarify this issue.
Collapse
Affiliation(s)
- Gülşen Özduran
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Near East University, Nicosia, Mersin 10 Turkey
| | - Eda Becer
- DESAM Institute, Near East University, Nicosia, Mersin 10 Turkey.,Faculty of Pharmacy, Department of Biochemistry, Near East University, Nicosia, Mersin 10 Turkey
| | - Hafize Seda Vatansever
- DESAM Institute, Near East University, Nicosia, Mersin 10 Turkey.,Faculty of Medicine, Department of Histology & Embryology, Manisa Celal Bayar University, Manisa, Turkey
| |
Collapse
|
14
|
Perdigão JM, Teixeira BJB, Baia-da-Silva DC, Nascimento PC, Lima RR, Rogez H. Analysis of phenolic compounds in Parkinson's disease: a bibliometric assessment of the 100 most cited papers. Front Aging Neurosci 2023; 15:1149143. [PMID: 37205057 PMCID: PMC10185771 DOI: 10.3389/fnagi.2023.1149143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 04/13/2023] [Indexed: 05/21/2023] Open
Abstract
Objective The aim of this study was to identify and characterize the 100 most cited articles on Parkinson's disease (PD) and phenolic compounds (PCs). Methods Articles were selected in the Web of Science Core Collection up to June 2022 based on predetermined inclusion criteria, and the following bibliometric parameters were extracted: the number of citations, title, keywords, authors, year, study design, tested PC and therapeutic target. MapChart was used to create worldwide networks, and VOSviewer software was used to create bibliometric networks. Descriptive statistical analysis was used to identify the most researched PCs and therapeutic targets in PD. Results The most cited article was also the oldest. The most recent article was published in 2020. Asia and China were the continent and the country with the most articles in the list (55 and 29%, respectively). In vitro studies were the most common experimental designs among the 100 most cited articles (46%). The most evaluated PC was epigallocatechin. Oxidative stress was the most studied therapeutic target. Conclusion Despite the demonstrations in laboratorial studies, the results obtained point to the need for clinical studies to better elucidate this association.
Collapse
Affiliation(s)
- José Messias Perdigão
- Centre for Valorization of Amazonian Bioactive Compounds, Federal University of Pará, Belém, Brazil
| | | | - Daiane Claydes Baia-da-Silva
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Priscila Cunha Nascimento
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Herve Rogez
- Centre for Valorization of Amazonian Bioactive Compounds, Federal University of Pará, Belém, Brazil
- *Correspondence: Herve Rogez,
| |
Collapse
|
15
|
Mani R, Sha Sulthana A, Muthusamy G, Elangovan N. Progress in the development of naturally derived active metabolites-based drugs: Potential therapeutics for Alzheimer's disease. Biotechnol Appl Biochem 2022; 69:2713-2732. [PMID: 35067971 DOI: 10.1002/bab.2317] [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: 08/31/2021] [Accepted: 01/03/2022] [Indexed: 12/27/2022]
Abstract
Alzheimer's disease (AD) is an extensive age-associated neurodegenerative disorder. In spite of wide-ranging progress in understanding the AD pathology for the past 50 years, clinical trials based on the hypothesis of amyloid-beta (Aβ) have reserved worsening particularly at late-stage human trials. Consequently, very few old drugs are presently used for AD with inadequate clinical consequences and various side effects. We focus on widespread pharmacological and beneficial principles for existing as well as future drugs. Multitargeting approaches by means of general antioxidant and anti-inflammatory mechanisms allied with particular receptor and/or enzyme-mediated actions in neuroprotection and neurodegeneration. The plant kingdom comprises a vast range of species with an incredible diversity of bioactive metabolites with diverse chemical scaffolds. In recent times, an increasing body of facts recommended the use of phytochemicals to decelerate AD's onset and progression. The definitive goal of AD investigation is to avert the onset of neurodegeneration, thereby allowing successful aging devoid of cognitive decline. At this point, we discussed the neurological protective role of natural products and naturally derived therapeutic agents for AD from various natural polyphenolic compounds and medicinal plants. In conclusion, medicinal plants act as a chief source of different bioactive constituents.
Collapse
Affiliation(s)
- Renuka Mani
- Department of Biotechnology, School of Bioscience, Periyar University, Salem, Tamil Nadu, India
| | - Ahmed Sha Sulthana
- Department of Biotechnology, School of Bioscience, Periyar University, Salem, Tamil Nadu, India
| | - Ganesan Muthusamy
- Department of Biochemistry, School of Bioscience, Periyar University, Salem, Tamil Nadu, India
| | - Namasivayam Elangovan
- Department of Biotechnology, School of Bioscience, Periyar University, Salem, Tamil Nadu, India
| |
Collapse
|
16
|
Soy Isoflavones Protect Neuronal PC12 Cells against Hypoxic Damage through Nrf2 Activation and Suppression of p38 MAPK and AKT-mTOR Pathways. Antioxidants (Basel) 2022; 11:antiox11102037. [PMID: 36290760 PMCID: PMC9598610 DOI: 10.3390/antiox11102037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/02/2022] [Accepted: 10/12/2022] [Indexed: 11/25/2022] Open
Abstract
Isoflavones are a class of major phenolic compounds, derived from soybeans, that possess unique therapeutic and biological properties. The possible mechanisms of isoflavone-mediated protection of neuronal PC12 cells against hypoxic damage was investigated in this study. Isoflavones showed potential neuroprotective effects by increasing cell viability, decreasing the level of reactive oxygen species (ROS), and inhibiting apoptosis and cell cycle arrest in cobalt chloride (CoCl2)-induced hypoxic damage. A Western blot analysis indicated that isoflavones decreased apoptosis by up-regulating the Bcl-xL protein and down-regulating the Bax protein. They further reduced the S-phase fraction of the cell cycle by down-regulating the p21 protein and up-regulating the cyclin A protein levels. Additionally, isoflavones activated Nrf2 protein translocation and inhibited the p38 MAPK and AKT–mTOR pathways. A molecular docking analysis further revealed that isoflavones displayed a potential competitive interaction with the Nrf2 protein for Keap1. Our findings suggest that isoflavones could be a potent neuroprotective phytochemical in soybeans and their products.
Collapse
|
17
|
Chen B, Zhang W, Lin C, Zhang L. A Comprehensive Review on Beneficial Effects of Catechins on Secondary Mitochondrial Diseases. Int J Mol Sci 2022; 23:ijms231911569. [PMID: 36232871 PMCID: PMC9569714 DOI: 10.3390/ijms231911569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/13/2022] [Accepted: 09/21/2022] [Indexed: 11/16/2022] Open
Abstract
Mitochondria are the main sites for oxidative phosphorylation and synthesis of adenosine triphosphate in cells, and are known as cellular power factories. The phrase "secondary mitochondrial diseases" essentially refers to any abnormal mitochondrial function other than primary mitochondrial diseases, i.e., the process caused by the genes encoding the electron transport chain (ETC) proteins directly or impacting the production of the machinery needed for ETC. Mitochondrial diseases can cause adenosine triphosphate (ATP) synthesis disorder, an increase in oxygen free radicals, and intracellular redox imbalance. It can also induce apoptosis and, eventually, multi-system damage, which leads to neurodegenerative disease. The catechin compounds rich in tea have attracted much attention due to their effective antioxidant activity. Catechins, especially acetylated catechins such as epicatechin gallate (ECG) and epigallocatechin gallate (EGCG), are able to protect mitochondria from reactive oxygen species. This review focuses on the role of catechins in regulating cell homeostasis, in which catechins act as a free radical scavenger and metal ion chelator, their protective mechanism on mitochondria, and the protective effect of catechins on mitochondrial deoxyribonucleic acid (DNA). This review highlights catechins and their effects on mitochondrial functional metabolic networks: regulating mitochondrial function and biogenesis, improving insulin resistance, regulating intracellular calcium homeostasis, and regulating epigenetic processes. Finally, the indirect beneficial effects of catechins on mitochondrial diseases are also illustrated by the warburg and the apoptosis effect. Some possible mechanisms are shown graphically. In addition, the bioavailability of catechins and peracetylated-catechins, free radical scavenging activity, mitochondrial activation ability of the high-molecular-weight polyphenol, and the mitochondrial activation factor were also discussed.
Collapse
|
18
|
Wang Y, Wu S, Li Q, Lang W, Li W, Jiang X, Wan Z, Chen J, Wang H. Epigallocatechin-3-gallate: A phytochemical as a promising drug candidate for the treatment of Parkinson’s disease. Front Pharmacol 2022; 13:977521. [PMID: 36172194 PMCID: PMC9511047 DOI: 10.3389/fphar.2022.977521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
Epigallocatechin 3-gallate (EGCG), an abundant polyphenolic component derived from green tea extract, possesses versatile bioactivities that can combat many diseases. During the last decade, EGCG was shown to be effective in experimental models of Parkinson’s disease (PD). Several experimental studies have suggested that it has pleiotropic neuroprotective effects, which has enhanced the appeal of EGCG as a therapeutic strategy in PD. In this review, we compiled recent updates and knowledge of the molecular mechanisms underlying the neuroprotective effects of EGCG in PD. We focused on the effects of EGCG on apoptosis, oxidative stress, inflammation, ferroptosis, modulation of dopamine production, and the aggregation of α-synuclein. The review highlights the pharmacological features of EGCG and its therapeutic implications in PD. Taken together, the accumulated data indicate that EGCG is a promising neuroprotective compound for the treatment of PD.
Collapse
Affiliation(s)
- Yumin Wang
- Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
| | - Shuang Wu
- Department of Neurology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qiang Li
- Department of Neurology, The Affiliated Hospital of Chifeng University, Chifeng, China
| | - Weihong Lang
- Department of Psychological Medicine, The Affiliated Hospital of Chifeng University, Chifeng, China
| | - Wenjing Li
- Department of Neurology, The Affiliated Hospital of Chifeng University, Chifeng, China
| | - Xiaodong Jiang
- Department of Anatomy, College of Basic Medicine, Chifeng University Health Science Center, Chifeng, China
| | - Zhirong Wan
- Department of Neurology,Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
| | - Jichao Chen
- Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
- *Correspondence: Jichao Chen, ; Hongquan Wang,
| | - Hongquan Wang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin’s Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
- *Correspondence: Jichao Chen, ; Hongquan Wang,
| |
Collapse
|
19
|
Sahebnasagh A, Eghbali S, Saghafi F, Sureda A, Avan R. Neurohormetic phytochemicals in the pathogenesis of neurodegenerative diseases. Immun Ageing 2022; 19:36. [PMID: 35953850 PMCID: PMC9367062 DOI: 10.1186/s12979-022-00292-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 07/24/2022] [Indexed: 12/02/2022]
Abstract
The world population is progressively ageing, assuming an enormous social and health challenge. As the world ages, neurodegenerative diseases are on the rise. Regarding the progressive nature of these diseases, none of the neurodegenerative diseases are curable at date, and the existing treatments can only help relieve the symptoms or slow the progression. Recently, hormesis has increased attention in the treatment of age-related neurodegenerative diseases. The concept of hormesis refers to a biphasic dose-response phenomenon, where low levels of the drug or stress exert protective of beneficial effects and high doses deleterious or toxic effects. Neurohormesis, as the adaptive aspect of hormetic dose responses in neurons, has been shown to slow the onset of neurodegenerative diseases and reduce the damages caused by aging, stroke, and traumatic brain injury. Hormesis was also observed to modulate anxiety, stress, pain, and the severity of seizure. Thus, neurohormesis can be considered as a potentially innovative approach in the treatment of neurodegenerative and other neurologic disorders. Herbal medicinal products and supplements are often considered health resources with many applications. The hormesis phenomenon in medicinal plants is valuable and several studies have shown that hormetic mechanisms of bioactive compounds can prevent or ameliorate the neurodegenerative pathogenesis in animal models of Alzheimer’s and Parkinson’s diseases. Moreover, the hormesis activity of phytochemicals has been evaluated in other neurological disorders such as Autism and Huntington’s disease. In this review, the neurohormetic dose–response concept and the possible underlying neuroprotection mechanisms are discussed. Different neurohormetic phytochemicals used for the better management of neurodegenerative diseases, the rationale for using them, and the key findings of their studies are also reviewed.
Collapse
|
20
|
Sergi CM. Epigallocatechin Gallate (EGCG) for Parkinson's Disease. Clin Exp Pharmacol Physiol 2022; 49:1029-1041. [PMID: 35748799 DOI: 10.1111/1440-1681.13691] [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: 02/02/2021] [Revised: 01/03/2022] [Accepted: 06/19/2022] [Indexed: 11/28/2022]
Abstract
In the last couple of decades, we have experienced increased use of nutraceuticals worldwide with a demand for organic foods, which has been elevated to an extent probably unmatched with other periods of our civilization. One of the nutraceuticals that gained attention is epigallocatechin gallate (EGCG), a polyphenol in green tea. It has been suggested that diseases of the central nervous system (CNS) can benefit from consuming some antioxidants, despite current results showing little evidence for their use in preventing and treating these diseases. ECGC may be beneficial in delaying the neurodegeneration of the substantia nigra (SN) regardless of the origin of Parkinson's disease (PD). This review covers the effect of EGCG on vitro and animal models of PD, the potential mechanisms of neuroprotection involved and summaries recent clinical trials in human PD. This review also aims to provide an investigative analysis of the current knowledge in this field and identify putative crucial issues. Environmental factors such as dietary habits, drug use, and social interaction are all factors that influence the evolution of neurodegenerative diseases. Therefore, the use of nutraceuticals requires further investigation. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Consolato M Sergi
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan, Hubei, China.,Anatomic Pathology, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada.,Department of Orthopedics, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, Hubei, China.,Department of Laboratory Medicine and Pathology, University of Alberta, AB, Canada
| |
Collapse
|
21
|
Noll C, Kandiah J, Moroy G, Gu Y, Dairou J, Janel N. Catechins as a Potential Dietary Supplementation in Prevention of Comorbidities Linked with Down Syndrome. Nutrients 2022; 14:2039. [PMID: 35631180 PMCID: PMC9147372 DOI: 10.3390/nu14102039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/08/2022] [Accepted: 05/10/2022] [Indexed: 11/24/2022] Open
Abstract
Plant-derived polyphenols flavonoids are increasingly being recognized for their medicinal potential. These bioactive compounds derived from plants are gaining more interest in ameliorating adverse health risks because of their low toxicity and few side effects. Among them, therapeutic approaches demonstrated the efficacy of catechins, a major group of flavonoids, in reverting several aspects of Down syndrome, the most common genomic disorder that causes intellectual disability. Down syndrome is characterized by increased incidence of developing Alzheimer's disease, obesity, and subsequent metabolic disorders. In this focused review, we examine the main effects of catechins on comorbidities linked with Down syndrome. We also provide evidence of catechin effects on DYRK1A, a dosage-sensitive gene encoding a protein kinase involved in brain defects and metabolic disease associated with Down syndrome.
Collapse
Affiliation(s)
- Christophe Noll
- Division of Endocrinology, Department of Medicine, Centre de Recherche du CHUS, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada;
| | - Janany Kandiah
- Unité de Biologie Fonctionnelle et Adaptative, UMR 8251 CNRS, Université Paris Cité, F-75013 Paris, France; (J.K.); (Y.G.)
| | - Gautier Moroy
- Unité de Biologie Fonctionnelle et Adaptative, INSERM CNRS, Université Paris Cité, F-75013 Paris, France;
| | - Yuchen Gu
- Unité de Biologie Fonctionnelle et Adaptative, UMR 8251 CNRS, Université Paris Cité, F-75013 Paris, France; (J.K.); (Y.G.)
| | - Julien Dairou
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, UMR 8601 CNRS, Université Paris Cité, F-75006 Paris, France;
| | - Nathalie Janel
- Unité de Biologie Fonctionnelle et Adaptative, UMR 8251 CNRS, Université Paris Cité, F-75013 Paris, France; (J.K.); (Y.G.)
| |
Collapse
|
22
|
Yin L, Zhang Y, Wang L, Wu H, Azi F, Tekliye M, Zhou J, Liu X, Dong M, Xia X. Neuroprotective potency of a soy whey fermented by Cordyceps militaris SN-18 against hydrogen peroxide-induced oxidative injury in PC12 cells. Eur J Nutr 2022; 61:779-792. [PMID: 34553258 DOI: 10.1007/s00394-021-02679-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 09/11/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE Soy whey is a byproduct generated from the processing of several soybean products. Its valorization has continued to attract significant research interest in recent times due to the nutritional and bioactive potency of its chemical composition. Herein, the neuroprotective potency of a soy whey fermented by Cordyceps militaris SN-18 against hydrogen peroxide (H2O2)-induced oxidative injury in PC12 cells was investigated. METHODS The phenolic compositions were analyzed by high-performance liquid chromatography. Antioxidant activities were assessed by ABTS•+ scavenging assay, DPPH radical scavenging assay, reducing power assay, and ferric reducing antioxidant power assay. The neuroprotective effects of fermented soy whey (FSW) were investigated based on the oxidative injury model in PC12 cells. RESULTS FSW possessed higher total phenolic content and antioxidant activities compared with unfermented soy whey (UFSW) and that most of the isoflavone glycosides were hydrolyzed into their corresponding aglycones during fermentation. The extract from FSW exhibited a greater protective effect on PC12 cells against oxidative injury by promoting cell proliferation, restoring cell morphology, inhibiting lactic dehydrogenase leakage, reducing reactive oxygen species levels, and enhancing antioxidant enzyme activities compared with that from UFSW. Additionally, cell apoptosis was significantly inhibited by FSW through down-regulation of caspase-3, caspase-9, and Bax and up-regulation of Bcl-2 and Bcl-xL. S-phase cell arrest was attenuated by FSW through increasing cyclin A, CDK1 and CDK2, and decreasing p21 protein. CONCLUSION Fermentation with C. militaris SN-18 could significantly improve the bioactivity of soy whey by enhancing the ability of nerve cells to resist oxidative damage.
Collapse
Affiliation(s)
- Liqing Yin
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Yongzhu Zhang
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Lixia Wang
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Han Wu
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China
| | - Fidelis Azi
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Mekonen Tekliye
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Jianzhong Zhou
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Xiaoli Liu
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Mingsheng Dong
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Xiudong Xia
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China.
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, People's Republic of China.
| |
Collapse
|
23
|
Talebi S, Ghoreishy SM, Jayedi A, Travica N, Mohammadi H. Dietary Antioxidants and Risk of Parkinson's Disease: A Systematic Review and Dose-Response Meta-analysis of Observational Studies. Adv Nutr 2022; 13:1493-1504. [PMID: 35030236 PMCID: PMC9526846 DOI: 10.1093/advances/nmac001] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/09/2021] [Accepted: 01/10/2022] [Indexed: 01/28/2023] Open
Abstract
The aim of the current review was to explore the association between various dietary antioxidants and the risk of developing Parkinson's disease (PD). PubMed, Scopus, Web of Science, and Google Scholar were searched up to March 2021. Prospective, observational cohort studies, nested case-control, and case-control designs that investigated the association between antioxidants and PD risk were included. A random-effects model was used to pool the RRs. The certainty of the evidence was rated using the GRADE (Grading of Recommendations Assessment, Development, and Evaluations) scoring system. In addition, a dose-response relation was examined between antioxidant intake and PD risk. Six prospective cohort studies and 2 nested case-control (total n = 448,737 with 4654 cases), as well as 6 case-control (1948 controls, 1273 cases) studies were eligible. The pooled RR was significantly lower for the highest compared with the lowest intake categories of vitamin E (n = 7; 0.84; 95% CI: 0.71, 0.99) and anthocyanins (n = 2; 0.76; 95% CI: 0.61, 0.96) in cohort studies. Conversely, a significantly higher risk of PD was observed for higher lutein intake (n = 3; 1.86; 95% CI: 1.20, 2.88) among case-control studies. Dose-response meta-analyses indicated a significant association between a 50-mg/d increase in vitamin C (n = 6; RR: 0.94; 95% CI: 0.88, 0.99), a 5-mg/d increment in vitamin E (n = 7; RR: 0.84; 95% CI: 0.70, 0.99), a 2-mg/d increment in β-carotene (n = 6; RR: 0.94, 95% CI: 0.89, 0.99), and a 1-mg/d increment in zinc (n = 1; OR: 0.65; 95% CI: 0.49, 0.86) and a reduced risk of PD. Overall, higher intake of antioxidant-rich foods may be associated with a lower risk of PD. Future well-designed prospective studies are needed to validate the present findings. The protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO) database (https://www.crd.york.ac.uk/PROSPERO, CRD42021242511).
Collapse
Affiliation(s)
- Sepide Talebi
- Students’ Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran,Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mojtaba Ghoreishy
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Jayedi
- Social Determinant of Health Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Nikolaj Travica
- Deakin University, IMPACT–the Institute for Mental and Physical Health and Clinical Translation, Food & Mood Centre, School of Medicine, Barwon Health, Geelong, Australia
| | | |
Collapse
|
24
|
Man VH, Lin D, He X, Gao J, Wang J. Joint Computational/Cell-Based Approach for Screening Inhibitors of Tau Oligomerization: A Proof-of-Concept Study. J Alzheimers Dis 2022; 89:107-119. [PMID: 35848028 DOI: 10.3233/jad-220450] [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] [Indexed: 12/28/2022]
Abstract
BACKGROUND Tau assembly produces soluble oligomers and insoluble neurofibrillary tangles, which are neurotoxic to the brain and associated with Alzheimer's and Parkinson's diseases. Therefore, preventing tau aggregation is a promising therapy for those neurodegenerative disorders. OBJECTIVE The aim of this study was to develop a joint computational/cell-based oligomerization protocol for screening inhibitors of tau assembly. METHODS Virtual oligomerization inhibition (VOI) experiment using molecular dynamics simulation was performed to screen potential oligomerization inhibitors of PHF6 hexapeptide. Tau seeding assay, which is directly related to the outcome of therapeutic intervention, was carried out to confirm a ligand's ability in inhibiting tau assembly formation. RESULTS Our protocol was tested on two known compounds, EGCG and Blarcamesine. EGCG inhibited both the aggregation of PHF6 peptide in VOI and tau assembly in tau seeding assay, while Blarcamesine was not a good inhibitor at the two tasks. We also pointed out that good binding affinity to tau aggregates is needed, but not sufficient for a ligand to become a good inhibitor of tau oligomerization. CONCLUSION VOI goes beyond traditional computational inhibitor screening of amyloid aggregation by directly examining the inhibitory ability of a ligand to tau oligomerization. Comparing with the traditional biochemical assays, tau seeding activities in cells is a better indicator for the outcome of a therapeutic intervention. Our hybrid protocol has been successfully validated. It can effectively and efficiently identify the inhibitors of amyloid oligomerization/aggregation processes, thus, facilitate to the drug development of tau-related neurodegenerative diseases.
Collapse
Affiliation(s)
- Viet Hoang Man
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA
| | - Da Lin
- Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Xibing He
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jie Gao
- Department of Neuroscience, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Junmei Wang
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA
| |
Collapse
|
25
|
Gardener SL, Rainey-Smith SR, Weinborn M, Bondonno CP, Martins RN. Intake of Products Containing Anthocyanins, Flavanols, and Flavanones, and Cognitive Function: A Narrative Review. Front Aging Neurosci 2021; 13:640381. [PMID: 34539375 PMCID: PMC8446387 DOI: 10.3389/fnagi.2021.640381] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 07/21/2021] [Indexed: 11/13/2022] Open
Abstract
The purpose of this review is to examine human research studies published within the past 6 years which evaluate the role of anthocyanin, flavanol, and flavanone consumption in cognitive function, and to discuss potential mechanisms of action underlying any observed benefits. Evidence to date suggests the consumption of flavonoid-rich foods, such as berries and cocoa, may have the potential to limit, or even reverse, age-related declines in cognition. Over the last 6 years, the flavonoid subgroups of anthocyanins, flavanols, and flavanones have been shown to be beneficial in terms of conferring neuroprotection. The mechanisms by which flavonoids positively modulate cognitive function are yet to be fully elucidated. Postulated mechanisms include both direct actions such as receptor activation, neurotrophin release and intracellular signaling pathway modulation, and indirect actions such as enhancement of cerebral blood flow. Further intervention studies conducted in diverse populations with sufficient sample sizes and long durations are required to examine the effect of consumption of flavonoid groups on clinically relevant cognitive outcomes. As populations continue to focus on adopting healthy aging strategies, dietary interventions with flavonoids remains a promising avenue for future research. However, many questions are still to be answered, including identifying appropriate dosage, timeframes for intake, as well as the best form of flavonoids, before definitive conclusions can be drawn about the extent to which their consumption can protect the aging brain.
Collapse
Affiliation(s)
- Samantha L Gardener
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation, Ralph and Patricia Sarich Neuroscience Research Institute, Nedlands, WA, Australia
| | - Stephanie R Rainey-Smith
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation, Ralph and Patricia Sarich Neuroscience Research Institute, Nedlands, WA, Australia.,Centre for Healthy Ageing, Health Futures Institute, Murdoch University, Murdoch, WA, Australia.,School of Psychological Science, The University of Western Australia, Crawley, WA, Australia
| | - Michael Weinborn
- School of Psychological Science, The University of Western Australia, Crawley, WA, Australia
| | - Catherine P Bondonno
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Medical School, Royal Perth Hospital, The University of Western Australia, Perth, WA, Australia
| | - Ralph N Martins
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation, Ralph and Patricia Sarich Neuroscience Research Institute, Nedlands, WA, Australia.,Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, Australia
| |
Collapse
|
26
|
Ma YH, Wu JH, Xu W, Shen XN, Wang HF, Hou XH, Cao XP, Bi YL, Dong Q, Feng L, Tan L, Yu JT. Associations of Green Tea Consumption and Cerebrospinal Fluid Biomarkers of Alzheimer's Disease Pathology in Cognitively Intact Older Adults: The CABLE Study. J Alzheimers Dis 2021; 77:411-421. [PMID: 32804140 DOI: 10.3233/jad-200410] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Green tea has been widely recognized in ameliorating cognitive impairment and Alzheimer's disease (AD), especially the progression of cognitive dysfunction. But the underlying mechanism is still unclear. OBJECTIVE This study was designed to determine the role of green tea consumption in the association with cerebrospinal fluid (CSF) biomarkers of AD pathology and to ascertain whether specific population backgrounds showed the differences toward these relationships. METHODS Multivariate linear models analyzed the available data on CSF biomarkers and frequency of green tea consumption of 722 cognitively intact participants from the Chinese Alzheimer's Biomarker and LifestylE (CABLE) database, and we additionally detected the interaction effects of tea consumption with APOEɛ4 status and gender using a two-way analysis of covariance. RESULTS Frequent green tea consumption was associated with a decreased level of CSF total-tau protein (t-tau) (p = 0.041) but not with the levels of CSF amyloid-β 42 (Aβ42) and CSF phosphorylated tau. The more pronounced associations of green tea consumption with CSF t-tau (p = 0.007) and CSF t-tau/Aβ42 (p = 0.039) were observed in individuals aged 65 years or younger. Additionally, males with frequent green tea consumption had a significantly low level of CSF t-tau/Aβ42 and a modest trend toward decreased CSF t-tau. There were no interaction effects of green tea consumption with APOEɛ4 and gender. CONCLUSION Collectively, our findings consolidated the favorable effects of green tea on the mitigation of AD risk. The constituents of green tea may improve abnormal tau metabolism and are promising targets in interventions and drug therapies.
Collapse
Affiliation(s)
- Ya-Hui Ma
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Jia-Huan Wu
- Department of Neurology, Dalian Medical University, Dalian, China
| | - Wei Xu
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Xue-Ning Shen
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hui-Fu Wang
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Xiao-He Hou
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Xi-Peng Cao
- Clinical Research Center, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Yan-Lin Bi
- Department of Anesthesiology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Qiang Dong
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lei Feng
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Lan Tan
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Jin-Tai Yu
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| |
Collapse
|
27
|
Almulla AYH, Mogulkoc R, Baltaci AK, Dasdelen D. Learning, Neurogenesis, and Effects of Flavonoids on Learning. Mini Rev Med Chem 2021; 22:355-364. [PMID: 34238155 DOI: 10.2174/1389557521666210707120719] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/09/2021] [Accepted: 04/19/2021] [Indexed: 11/22/2022]
Abstract
Learning and memory are two of our mind's most magical abilities. Different brain regions have roles in processing and storing different types of memories. The hippocampus is the part of the brain responsible for receiving information and storing it in the neocortex. One of the most impressive characteristics of the hippocampus is its capacity for neurogenesis, which is a process in which new neurons are produced and then transformed into mature neurons and finally integrated into neural circuits. The neurogenesis process in the hippocampus, an example of neuroplasticity in the adult brain, is believed to aid hippocampal-dependent learning and memory. New neurons are constantly produced in the hippocampus and integrated into the pre-existing neuronal network; this allows old memories already stored in the neocortex to be removed from the hippocampus and replaced with new ones. Factors affecting neurogenesis in the hippocampus may also affect hippocampal-dependent learning and memory. The flavonoids can particularly exert powerful actions in mammalian cognition and improve hippocampal-dependent learning and memory by positively affecting hippocampal neurogenesis.
Collapse
Affiliation(s)
| | - Rasim Mogulkoc
- Selcuk University, Medical School Department of Physiology, 42075, Konya, Turkey
| | | | - Dervis Dasdelen
- Selcuk University, Medical School Department of Physiology, 42075, Konya, Turkey
| |
Collapse
|
28
|
Singh RK, Kumar S, Tomar MS, Verma PK, Kumar A, Kumar S, Kumar N, Singh JP, Acharya A. Putative role of natural products as Protein Kinase C modulator in different disease conditions. ACTA ACUST UNITED AC 2021; 29:397-414. [PMID: 34216003 DOI: 10.1007/s40199-021-00401-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 05/25/2021] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Protein kinase C (PKC) is a promising drug target for various therapeutic areas. Natural products derived from plants, animals, microorganisms, and marine organisms have been used by humans as medicine from prehistoric times. Recently, several compounds derived from plants have been found to modulate PKC activities through competitive binding with ATP binding site, and other allosteric regions of PKC. As a result fresh race has been started in academia and pharmaceutical companies to develop an effective naturally derived small-molecule inhibitor to target PKC activities. Herein, in this review, we have discussed several natural products and their derivatives, which are reported to have an impact on PKC signaling cascade. METHODS All information presented in this review article regarding the regulation of PKC by natural products has been acquired by a systematic search of various electronic databases, including ScienceDirect, Scopus, Google Scholar, Web of science, ResearchGate, and PubMed. The keywords PKC, natural products, curcumin, rottlerin, quercetin, ellagic acid, epigallocatechin-3 gallate, ingenol 3 angelate, resveratrol, protocatechuic acid, tannic acid, PKC modulators from marine organism, bryostatin, staurosporine, midostaurin, sangivamycin, and other relevant key words were explored. RESULTS The natural products and their derivatives including curcumin, rottlerin, quercetin, ellagic acid, epigallocatechin-3 gallate, ingenol 3 angelate, resveratrol, bryostatin, staurosporine, and midostaurin play a major role in the management of PKC activity during various disease progression. CONCLUSION Based on the comprehensive literature survey, it could be concluded that various natural products can regulate PKC activity during disease progression. However, extensive research is needed to circumvent the challenge of isoform specific regulation of PKC by natural products.
Collapse
Affiliation(s)
- Rishi Kant Singh
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India
| | | | - Munendra Singh Tomar
- Department of Pharmaceutical Science, School of Pharmacy, University of Colorado, Denver, USA
| | | | - Amit Kumar
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India
| | - Sandeep Kumar
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India
| | - Naveen Kumar
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India
| | - Jai Prakash Singh
- Department of Panchkarma, Institute of Medical Science, BHU, Varanasi, India, 221005
| | - Arbind Acharya
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India.
| |
Collapse
|
29
|
Uddin MS, Mamun AA, Rahman MM, Jeandet P, Alexiou A, Behl T, Sarwar MS, Sobarzo-Sánchez E, Ashraf GM, Sayed AA, Albadrani GM, Peluso I, Abdel-Daim MM. Natural Products for Neurodegeneration: Regulating Neurotrophic Signals. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8820406. [PMID: 34239696 PMCID: PMC8241508 DOI: 10.1155/2021/8820406] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 05/20/2021] [Indexed: 12/12/2022]
Abstract
Neurodegenerative disorders (NDs) are heterogeneous groups of ailments typically characterized by progressive damage of the nervous system. Several drugs are used to treat NDs but they have only symptomatic benefits with various side effects. Numerous researches have been performed to prove the advantages of phytochemicals for the treatment of NDs. Furthermore, phytochemicals such as polyphenols might play a pivotal role in rescue from neurodegeneration due to their various effects as anti-inflammatory, antioxidative, and antiamyloidogenic agents by controlling apoptotic factors, neurotrophic factors (NTFs), free radical scavenging system, and mitochondrial stress. On the other hand, neurotrophins (NTs) including nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), NT4/5, and NT3 might have a crucial neuroprotective role, and their diminution triggers the development of the NDs. Polyphenols can interfere directly with intracellular signaling molecules to alter brain activity. Several natural products also improve the biosynthesis of endogenous genes encoding antiapoptotic Bcl-2 as well as NTFs such as glial cell and brain-derived NTFs. Various epidemiological studies have demonstrated that the initiation of these genes could play an essential role in the neuroprotective function of dietary compounds. Hence, targeting NTs might represent a promising approach for the management of NDs. In this review, we focus on the natural product-mediated neurotrophic signal-modulating cascades, which are involved in the neuroprotective effects.
Collapse
Affiliation(s)
- Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh
- Pharmakon Neuroscience Research Network, Dhaka, Bangladesh
| | - Abdullah Al Mamun
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Kowloon, Hong Kong
| | - Md Motiar Rahman
- Laboratory of Clinical Biochemistry and Nutritional Sciences (LCBNS), Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Philippe Jeandet
- Research Unit, Induced Resistance and Plant Bioprotection, USC INRAe 1488, SFR Condorcet FR CNRS 3417, Faculty of Sciences, University of Reims Champagne-Ardenne, P.O. Box 1039, CEDEX 2, 51687 Reims, France
| | - Athanasios Alexiou
- Novel Global Community Educational Foundation, 2770 Hebersham, Australia
- AFNP Med Austria, 1010 Wien, Austria
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Md Shahid Sarwar
- Department of Pharmacy, Noakhali Science and Technology University, Sonapur, Noakhali 3814, Bangladesh
| | - 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
| | - Ghulam Md Ashraf
- Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Amany A. Sayed
- Zoology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Ghadeer M. Albadrani
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11474, Saudi Arabia
| | - Ilaria Peluso
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA-AN), 00142 Rome, Italy
| | - Mohamed M. Abdel-Daim
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| |
Collapse
|
30
|
Zhang Z, Zhang Y, Li J, Fu C, Zhang X. The Neuroprotective Effect of Tea Polyphenols on the Regulation of Intestinal Flora. Molecules 2021; 26:molecules26123692. [PMID: 34204244 PMCID: PMC8233780 DOI: 10.3390/molecules26123692] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 12/12/2022] Open
Abstract
Tea polyphenols (TPs) are the general compounds of natural polyhydroxyphenols extracted in tea. Although a large number of studies have shown that TPs have obvious neuroprotective and neuro repair effects, they are limited due to the low bioavailability in vivo. However, TPs can act indirectly on the central nervous system by affecting the “microflora–gut–brain axis”, in which the microbiota and its composition represent a factor that determines brain health. Bidirectional communication between the intestinal microflora and the brain (microbe–gut–brain axis) occurs through a variety of pathways, including the vagus nerve, immune system, neuroendocrine pathways, and bacteria-derived metabolites. This axis has been shown to influence neurotransmission and behavior, which is usually associated with neuropsychiatric disorders. In this review, we discuss that TPs and their metabolites may provide benefits by restoring the imbalance of intestinal microbiota and that TPs are metabolized by intestinal flora, to provide a new idea for TPs to play a neuroprotective role by regulating intestinal flora.
Collapse
Affiliation(s)
- Zhicheng Zhang
- Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education, College of Life Sciences, Zhejiang University, Hangzhou 310058, China;
- Taizhou Biomedical Industry Research Institute Co., Ltd., Taizhou 317000, China
- College of Life Sciences, Taizhou University, Taizhou 317000, China
| | - Yuting Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China;
| | - Junmin Li
- Taizhou Biomedical Industry Research Institute Co., Ltd., Taizhou 317000, China
- College of Life Sciences, Taizhou University, Taizhou 317000, China
- Correspondence: (J.L.); (C.F.); (X.Z.)
| | - Chengxin Fu
- Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education, College of Life Sciences, Zhejiang University, Hangzhou 310058, China;
- Correspondence: (J.L.); (C.F.); (X.Z.)
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo 315211, China;
- Correspondence: (J.L.); (C.F.); (X.Z.)
| |
Collapse
|
31
|
Uddin MS, Al Mamun A, Kabir MT, Ahmad J, Jeandet P, Sarwar MS, Ashraf GM, Aleya L. Neuroprotective role of polyphenols against oxidative stress-mediated neurodegeneration. Eur J Pharmacol 2020; 886:173412. [DOI: 10.1016/j.ejphar.2020.173412] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 07/16/2020] [Accepted: 07/23/2020] [Indexed: 12/30/2022]
|
32
|
Ramli NZ, Yahaya MF, Tooyama I, Damanhuri HA. A Mechanistic Evaluation of Antioxidant Nutraceuticals on Their Potential against Age-Associated Neurodegenerative Diseases. Antioxidants (Basel) 2020; 9:E1019. [PMID: 33092139 PMCID: PMC7588884 DOI: 10.3390/antiox9101019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/28/2020] [Accepted: 10/14/2020] [Indexed: 02/06/2023] Open
Abstract
Nutraceuticals have been extensively studied worldwide due to its neuroprotective effects in in vivo and in vitro studies, attributed by the antioxidative properties. Alzheimer (AD) and Parkinson disease (PD) are the two main neurodegenerative disorders that are discussed in this review. Both AD and PD share the similar involvement of oxidative stress in their pathophysiology. Nutraceuticals exert their antioxidative effects via direct scavenging of free radicals, prevent damage to biomolecules, indirectly stimulate the endogenous antioxidative enzymes and gene expressions, inhibit activation of pro-oxidant enzymes, and chelate metals. In addition, nutraceuticals can act as modulators of pro-survival, pro-apoptotic, and inflammatory signaling pathways. They have been shown to be effective particularly in preclinical stages, due to their multiple mechanisms of action in attenuating oxidative stress underlying AD and PD. Natural antioxidants from food sources and natural products such as resveratrol, curcumin, green tea polyphenols, and vitamin E are promising therapeutic agents in oxidative stress-mediated neurodegenerative disease as they have fewer adverse effects, more tolerable, cheaper, and sustainable for long term consumption.
Collapse
Affiliation(s)
- Nur Zuliani Ramli
- Department of Biochemistry, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia;
- Department of Biomedical Sciences and Therapeutics, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia
| | - Mohamad Fairuz Yahaya
- Department of Anatomy, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia;
| | - Ikuo Tooyama
- Molecular Neuroscience Research Centre, Shiga University of Medical Sciences, Seta Tsukinowacho, Otsu 520-2192, Shiga, Japan;
| | - Hanafi Ahmad Damanhuri
- Department of Biochemistry, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia;
| |
Collapse
|
33
|
Zhang T, Gygi SP, Paulo JA. Temporal Proteomic Profiling of SH-SY5Y Differentiation with Retinoic Acid Using FAIMS and Real-Time Searching. J Proteome Res 2020; 20:704-714. [PMID: 33054241 DOI: 10.1021/acs.jproteome.0c00614] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The SH-SY5Y cell line is often used as a surrogate for neurons in cell-based studies. This cell line is frequently differentiated with all-trans retinoic acid (ATRA) over a 7-day period, which confers neuron-like properties to the cells. However, no analysis of proteome remodeling has followed the progress of this transition. Here, we quantitatively profiled over 9400 proteins across a 7-day treatment with retinoic acid using state-of-the-art mass spectrometry-based proteomics technologies, including FAIMS, real-time database searching, and TMTpro16 sample multiplexing. Gene ontology analysis revealed that categories with the highest increases in protein abundance were related to the plasma membrane/extracellular space. To showcase our data set, we surveyed the protein abundance profiles linked to neurofilament bundle assembly, neuron projections, and neuronal cell body formation. These proteins exhibited increases in abundance level, yet we observed multiple patterns among the queried proteins. The data presented represent a rich resource for investigating temporal protein abundance changes in SH-SY5Y cells differentiated with retinoic acid. Moreover, the sample preparation and data acquisition strategies used here can be readily applied to any analogous cell line differentiation analysis.
Collapse
Affiliation(s)
- Tian Zhang
- Department of Cell Biology, Harvard Medical School, 240 Longwood Ave., Boston, Massachusetts 02115, United States
| | - Steven P Gygi
- Department of Cell Biology, Harvard Medical School, 240 Longwood Ave., Boston, Massachusetts 02115, United States
| | - Joao A Paulo
- Department of Cell Biology, Harvard Medical School, 240 Longwood Ave., Boston, Massachusetts 02115, United States
| |
Collapse
|
34
|
Henríquez G, Gomez A, Guerrero E, Narayan M. Potential Role of Natural Polyphenols against Protein Aggregation Toxicity: In Vitro, In Vivo, and Clinical Studies. ACS Chem Neurosci 2020; 11:2915-2934. [PMID: 32822152 DOI: 10.1021/acschemneuro.0c00381] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
One of the main features of neurodegenerative disorders such as Alzheimer's disease and Parkinson's disease is the amyloidogenic behavior of disease-specific proteins including amyloid β, tau, α-synuclein, and mutant Huntingtin which participate in the formation, accumulation, and deposition of toxic misfolded aggregates. Consequently, these proteins not only associated with the progress of their respective neurodegenerative pathologies but also qualify as disease-specific biomarkers. The aim of using natural polyphenols is to target amyloid-dependent proteopathies by decreasing free radical damage and inhibiting and dissolving amyloid fibrils. We explore the effectiveness of the polyphenols epigallocatechin-3-gallate, oleuropein aglycone, and quercetin on their ability to inhibit aggregation of amyloid β, tau, and α-synuclein and mitigate other pathological features for Alzheimer's disease and Parkinson's disease. The analysis was carried from in vitro and cell line studies to animal models and clinical trials. This Review describes the use of phytochemical compounds as prophylactic agents for Alzheimer's disease, Parkinson's disease, and other proteopathies.
Collapse
Affiliation(s)
- Gabriela Henríquez
- Department of Environmental Science and Engineering, the University of Texas at El Paso (UTEP), El Paso, Texas 79968, United States
| | - Alejandra Gomez
- Department of Chemistry and Biochemistry, the University of Texas at El Paso (UTEP), El Paso, Texas 79968, United States
| | - Erick Guerrero
- Department of Chemistry and Biochemistry, the University of Texas at El Paso (UTEP), El Paso, Texas 79968, United States
| | - Mahesh Narayan
- Department of Chemistry and Biochemistry, the University of Texas at El Paso (UTEP), El Paso, Texas 79968, United States
| |
Collapse
|
35
|
Zhong Z, Fu X, Li H, Chen J, Wang M, Gao S, Zhang L, Cheng C, Zhang Y, Li P, Zhang S, Qian X, Shu Y, Chai R, Gao X. Citicoline Protects Auditory Hair Cells Against Neomycin-Induced Damage. Front Cell Dev Biol 2020; 8:712. [PMID: 32984303 PMCID: PMC7487320 DOI: 10.3389/fcell.2020.00712] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/13/2020] [Indexed: 01/07/2023] Open
Abstract
Aminoglycoside-induced hair cell (HC) loss is one of the most important causes of hearing loss. After entering the inner ear, aminoglycosides induce the production of high levels of reactive oxygen species (ROS) that subsequently activate apoptosis in HCs. Citicoline, a nucleoside derivative, plays a therapeutic role in central nervous system injury and in neurodegenerative disease models, including addictive disorders, stroke, head trauma, and cognitive impairment in the elderly, and has been widely used in the clinic as an FDA approved drug. However, its effect on auditory HCs remains unknown. Here, we used HC-like HEI-OC-1 cells and whole organ explant cultured mouse cochleae to explore the effect of citicoline on aminoglycoside-induced HC damage. Consistent with previous reports, both ROS levels and apoptosis were significantly increased in neomycin-induced cochlear HCs and HEI-OC-1 cells compared to undamaged controls. Interestingly, we found that co-treatment with citicoline significantly protected against neomycin-induced HC loss in both HEI-OC-1 cells and whole organ explant cultured cochleae. Furthermore, we demonstrated that citicoline could significantly reduce neomycin-induced mitochondrial dysfunction and inhibit neomycin-induced ROS accumulation and subsequent apoptosis. Thus, we conclude that citicoline can protect against neomycin-induced HC loss by inhibiting ROS aggregation and thus preventing apoptosis in HCs, and this suggests that citicoline might serve as a potential therapeutic drug in the clinic to protect HCs.
Collapse
Affiliation(s)
- Zhenhua Zhong
- Jiangsu Provincial Key Medical Discipline (Laboratory), Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China.,Department of Otolaryngology, Head and Neck Surgery, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Xiaolong Fu
- MOE Key Laboratory for Developmental Genes and Human Disease, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Institute of Life Sciences, Southeast University, Nanjing, China
| | - He Li
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jie Chen
- Jiangsu Provincial Key Medical Discipline (Laboratory), Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Maohua Wang
- Department of Otolaryngology, Head and Neck Surgery, Xiangya School of Medicine, Central South University, Changsha, China
| | - Song Gao
- Department of Otolaryngology, Affiliated People's Hospital of Jiangsu University, Zhenjiang, China
| | - Liyan Zhang
- MOE Key Laboratory for Developmental Genes and Human Disease, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Institute of Life Sciences, Southeast University, Nanjing, China
| | - Cheng Cheng
- Jiangsu Provincial Key Medical Discipline (Laboratory), Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Yuan Zhang
- MOE Key Laboratory for Developmental Genes and Human Disease, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Institute of Life Sciences, Southeast University, Nanjing, China
| | - Peipei Li
- School of Life Sciences, Shandong University, Jinan, China
| | - Shasha Zhang
- MOE Key Laboratory for Developmental Genes and Human Disease, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Institute of Life Sciences, Southeast University, Nanjing, China
| | - Xiaoyun Qian
- Jiangsu Provincial Key Medical Discipline (Laboratory), Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Yilai Shu
- ENT Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology, Institute of Biomedical Sciences, NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai, China
| | - Renjie Chai
- MOE Key Laboratory for Developmental Genes and Human Disease, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Institute of Life Sciences, Southeast University, Nanjing, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China
| | - Xia Gao
- Jiangsu Provincial Key Medical Discipline (Laboratory), Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| |
Collapse
|
36
|
Asthana A, Ndyabawe K, Mendez D, Douglass M, Haidekker MA, Kisaalita WS. Calcium Oscillation Frequency Is a Potential Functional Complex Physiological Relevance Indicator for a Neuroblastoma-Based 3D Culture Model. ACS Biomater Sci Eng 2020; 6:4314-4323. [PMID: 33463347 DOI: 10.1021/acsbiomaterials.9b01988] [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: 11/30/2022]
Abstract
In vitro screening for drugs that affect neural function in vivo is still primitive. It primarily relies on single cellular responses from 2D monolayer cultures that have been shown to be exaggerations of the in vivo response. For the 3D model to be physiologically relevant, it should express characteristics that not only differentiate it from 2D but also closely emulate those seen in vivo. These complex physiologically relevant (CPR) outcomes can serve as a standard for determining how close a 3D culture is to its native tissue or which out of a given number of 3D platforms is better suited for a given application. In this study, Fluo-4-based calcium fluorescence imaging was performed followed by automated image data processing to quantify the calcium oscillation frequency of SHSY5Y cells cultured in 2D and 3D formats. It was found that the calcium oscillation frequency is upregulated in traditional 2D cultures while it was comparable to in vivo in spheroid and microporous polymer scaffold-based 3D models, suggesting calcium oscillation frequency as a potential functional CPR indicator for neural cultures.
Collapse
|
37
|
The Impact of Dietary Supplementation of Whole Foods and Polyphenols on Atherosclerosis. Nutrients 2020; 12:nu12072069. [PMID: 32664664 PMCID: PMC7400924 DOI: 10.3390/nu12072069] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/01/2020] [Accepted: 07/09/2020] [Indexed: 12/16/2022] Open
Abstract
The purpose of this review is to highlight current research on the benefits of supplementation with foods with a diverse polyphenol composition, including fruits, vegetables, nuts, grains, oils, spices, and teas in blunting atherosclerosis. We searched PubMed for publications utilizing whole food or polyphenols prepared from whole foods in Apolipoprotein E (ApoE) or Low-Density Lipoprotein Receptor (LDLR) knockout mice, and identified 73 studies in which plaque was measured. The majority of the studies reported a reduction in plaque. Nine interventions showed no effect, while three using Agaricus blazei mushroom, HYJA-ri-4 rice variety, and safrole-2', 3'-oxide (SFO) increased plaque. The mechanisms by which atherosclerosis was reduced include improved lipid profile, antioxidant status, and cholesterol clearance, and reduced inflammation. Importantly, not all dietary interventions that reduce plaque showed an improvement in lipid profile. Additionally, we found that, out of 73 studies, only 9 used female mice and only 6 compared both sexes. Only one study compared the two models (LDLR vs. ApoE), showing that the treatment worked in one but not the other. Not all supplementations work in both male and female animals, suggesting that increasing the variety of foods with different polyphenol compositions may be more effective in mitigating atherosclerosis.
Collapse
|
38
|
Shokrzadeh M, Javanmard H, Golmohammad Zadeh G, Asgarian Emran H, Modanlou M, Yaghubi-Beklar S, Ataee R. Evaluation of the Anti-apoptotic and Anti-cytotoxic Effect of Epicatechin Gallate and Edaravone on SH-SY5Y Neuroblastoma Cells. Basic Clin Neurosci 2020; 10:619-630. [PMID: 32477479 PMCID: PMC7253806 DOI: 10.32598/bcn.9.10.1159.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 12/10/2018] [Accepted: 05/13/2019] [Indexed: 11/24/2022] Open
Abstract
Introduction: Parkinson disease (PD) is the second most common neurodegenerative disease affecting older individuals with signs of motor disability and cognitive impairment. Epicatechin (EC) and edaravone have neuroprotective effects most probably due to their antioxidant activity; however, a limited number of studies have considered their role in PD. This research aimed at investigating the neuroprotective effect of EC and edaravone in a neurotoxin-induced model of PD. Methods: An in vitro model of PD was made by subjecting SH-SY5Y neuroblastoma cells to neurotoxin: 6-hydroxydopamine (6-OHDA) 100 μM/well. The cytoprotective effect of EC and edaravone in five concentrations on cell viability was tested using the MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide) assay. The apoptotic assay was done by annexin V and propidium iodide method using flow cytometry. Results: According to the MTT assay analysis, EC and edaravone had protective effects against 6-OH DA-induced cytotoxicity in SH-SY5Y neuroblastoma cells that were much more significant for edaravone and also a relative synergistic effect between EC and edaravone was observed. The apoptotic analysis showed that edaravone alone could decrease early and late apoptosis, whereas EC diminished early apoptosis, but enhanced late apoptosis and necrosis. Besides, co-treatment of edaravone and EC had a synergistic effect on decreasing apoptosis and increasing cell viability. Conclusion: The protective effect of edaravone on apoptosis and cytotoxicity was demonstrated clearly and EC had a synergistic effect with edaravone.
Collapse
Affiliation(s)
- Mohammad Shokrzadeh
- Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hashem Javanmard
- Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | | | | | - Mona Modanlou
- Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Saeed Yaghubi-Beklar
- Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ramin Ataee
- Pharmaceutical Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,Immunology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| |
Collapse
|
39
|
Mandil R, Prakash A, Rahal A, Singh SP, Sharma D, Kumar R, Garg SK. In vitro and in vivo effects of flubendiamide and copper on cyto-genotoxicity, oxidative stress and spleen histology of rats and its modulation by resveratrol, catechin, curcumin and α-tocopherol. BMC Pharmacol Toxicol 2020; 21:29. [PMID: 32326976 PMCID: PMC7179012 DOI: 10.1186/s40360-020-00405-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 03/20/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Living organisms are frequently exposed to more than one xenobiotic at a time either by ingestion of contaminated food/fodder or due to house-hold practices, occupational hazards or through environment. These xenobiotics interact individually or in combination with biological systems and act as carcinogen or produce other toxic effects including reproductive and degenerative diseases. Present study was aimed to investigate the cyto-genotoxic effects of flubendiamide and copper and ameliorative potential of certain natural phyotconstituent antioxidants. METHOD In vitro cytogenotoxic effects were evaluated by employing battery of assays including Propidium iodide staining, Tunel assay, Micronuclei, DNA fragmentation and Comet assay on isolated splenocytes and their prevention by resveratrol (5 and 10 μM), catechin (10 and 20 μM), curcumin (5 and 10 μM) and α-tocopherol (5, 10 and 20 μM). In vivo study was also undertaken daily oral administration of flubendiamide (200 mg/kg) or copper (33 mg/kg) and both these in combination, and also all these concurrently with of α-tocopherol to Wistar rats for 90 days. RESULTS Flubendiamide and copper produced concentration-dependent cytotoxic effects on splenocytes and at median lethal concentrations, flubendiamide (40 μM) and copper (40 μM) respectively produced 71 and 81% nonviable cells, higher number of Tunel+ve apoptotic cells, 7.86 and 9.16% micronucleus and 22.90 and 29.59 comets/100 cells and DNA fragmentation. In vivo study revealed significant (P < 0.05) increase in level of lipid peroxidation (LPO) and decrease in glutathione peroxidase (GPx), glutathione-S-transferase (GST) and superoxide dismutase (SOD) activities in groups exposed to flubendiamide or copper alone or both these in combination. Histopathological examination of rat spleens revealed depletion of lymphoid tissue, separation of splenocytes and rarification in splenic parenchyma of xenobiotic(s) treated groups. CONCLUSION Flubendiamide and copper induce oxidative stress and produce cytogenotoxic effects along with histoarchitectural changes in spleen. All four tested natural antioxidants (resveratrol, catechin, curcumin and α-tocopherol) reduced flubendiamide and copper-induced cytotoxic effects in rat splenocytes. Rat splenocytes are very sensitive to flubendiamide and copper-induced cytogenotoxicity, therefore, these can be effectively employed for screening of compounds for their cytogenotoxic potential. α-tocopherol was effective in restoring alterations in oxidative stress biomarkers and preventing histoarchitectural lesions in spleen.
Collapse
Affiliation(s)
- Rajesh Mandil
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary and Animal Sciences, Sardar Vallabhbhai Patel University of Agriculture and Tecahnology, 250110, Meerut, India
| | - Atul Prakash
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyay Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go- Anusandhan Sansthan (DUVASU), -281001, Mathura, India
| | - Anu Rahal
- Division of Goat Health, Central Institute for Research on Goat (CIRG), Makhdoom, Farah, Mathura, Uttar Pradesh 281122 India
| | - S. P. Singh
- Department of Animal Genetics & Breeding, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyay Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), 281001, Mathura, India
| | - Deepak Sharma
- Department of Animal Genetics & Breeding, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyay Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), 281001, Mathura, India
| | - Rahul Kumar
- Department of Veterinary Pathology, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyay Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan (DUVASU), 281001, Mathura, India
| | - Satish Kumar Garg
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, U.P. Pt. Deen Dayal Upadhyay Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go- Anusandhan Sansthan (DUVASU), -281001, Mathura, India
| |
Collapse
|
40
|
Zanoni F, Primiterra M, Angeli N, Zoccatelli G. Microencapsulation by spray-drying of polyphenols extracted from red chicory and red cabbage: Effects on stability and color properties. Food Chem 2020; 307:125535. [PMID: 31639574 DOI: 10.1016/j.foodchem.2019.125535] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 09/05/2019] [Accepted: 09/13/2019] [Indexed: 01/08/2023]
Abstract
The research of antioxidants and natural pigments to replace synthetic molecules is increasingly considering wastes from plant food supply chains. Red chicory (RCH) and red cabbage (RCA) are rich sources of polyphenols (PP), especially anthocyanins, well know natural pigments possessing strong antioxidant capacity and beneficial health effects. The aim of this work was to compare different solvents for PP extraction and to evaluate the effect of spray-drying encapsulation using modified starch on PP, antioxidant capacity (AOC) and color properties. Methanol:water (70:30) showed the best extraction capacity, while ethanol:water (70:30) extracts displayed the highest thermal stability. Ethanol:water extracts were spray-dried with a yield of 95-99% for both crops, while the efficiency of PP encapsulation was 79% (RCA) and 88% (RCH). Encapsulation improved retention of PP and AOC upon thermal treatment (RCH: 20-30%, RCA: 44-55%) without altering color properties. This process can be employed for the development of functional foods and supplements.
Collapse
Affiliation(s)
- Francesca Zanoni
- University of Verona, Department of Biotechnology, Verona, Italy; Sphera Encapsulation Srl, Verona, Italy
| | | | - Nicola Angeli
- MUSE, Limnology and Phycology Section, Trento, Italy
| | - Gianni Zoccatelli
- University of Verona, Department of Biotechnology, Verona, Italy; Sphera Encapsulation Srl, Verona, Italy.
| |
Collapse
|
41
|
Protein Kinase C Isozymes and Autophagy during Neurodegenerative Disease Progression. Cells 2020; 9:cells9030553. [PMID: 32120776 PMCID: PMC7140419 DOI: 10.3390/cells9030553] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/27/2020] [Accepted: 02/04/2020] [Indexed: 12/16/2022] Open
Abstract
Protein kinase C (PKC) isozymes are members of the Serine/Threonine kinase family regulating cellular events following activation of membrane bound phospholipids. The breakdown of the downstream signaling pathways of PKC relates to several disease pathogeneses particularly neurodegeneration. PKC isozymes play a critical role in cell death and survival mechanisms, as well as autophagy. Numerous studies have reported that neurodegenerative disease formation is caused by failure of the autophagy mechanism. This review outlines PKC signaling in autophagy and neurodegenerative disease development and introduces some polyphenols as effectors of PKC isozymes for disease therapy.
Collapse
|
42
|
Carrera-Juliá S, Moreno ML, Barrios C, de la Rubia Ortí JE, Drehmer E. Antioxidant Alternatives in the Treatment of Amyotrophic Lateral Sclerosis: A Comprehensive Review. Front Physiol 2020; 11:63. [PMID: 32116773 PMCID: PMC7016185 DOI: 10.3389/fphys.2020.00063] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 01/21/2020] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease that produces a selective loss of the motor neurons of the spinal cord, brain stem and motor cortex. Oxidative stress (OS) associated with mitochondrial dysfunction and the deterioration of the electron transport chain has been shown to be a factor that contributes to neurodegeneration and plays a potential role in the pathogenesis of ALS. The regions of the central nervous system affected have high levels of reactive oxygen species (ROS) and reduced antioxidant defenses. Scientific studies propose treatment with antioxidants to combat the characteristic OS and the regeneration of nicotinamide adenine dinucleotide (NAD+) levels by the use of precursors. This review examines the possible roles of nicotinamide riboside and pterostilbene as therapeutic strategies in ALS.
Collapse
Affiliation(s)
- Sandra Carrera-Juliá
- Doctoral Degree’s School, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
- Department of Nutrition and Dietetics, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
| | - Mari Luz Moreno
- Department of Basic Sciences, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
| | - Carlos Barrios
- Institute for Research on Musculoskeletal Disorders, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
| | | | - Eraci Drehmer
- Department of Basic Sciences, Catholic University of Valencia “San Vicente Mártir”, Valencia, Spain
| |
Collapse
|
43
|
Azizi Z, Salimi M, Amanzadeh A, Majelssi N, Naghdi N. Carvacrol and Thymol Attenuate Cytotoxicity Induced by Amyloid β25-35 via Activating Protein Kinase C and Inhibiting Oxidative Stress in PC12 Cells. IRANIAN BIOMEDICAL JOURNAL 2020; 24:243-50. [PMID: 32306722 PMCID: PMC7275817 DOI: 10.29252/ibj.24.4.243] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background Our previous findings indicated that carvacrol and thymol alleviate cognitive impairments caused by Aβ in rodent models of Alzheimer's disease (AD). In this study, the neuroprotective effects of carvacrol and thymol against Aβ25-35-induced cytotoxicity were evaluated, and the potential mechanisms were determined. Methods PC12 cells were pretreated with Aβ25-35 for 2 h, followed by incubation with carvacrol or thymol for additional 48 h. Cell viability was measured by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method. A flurospectrophotometer was employed to observe the intracellular reactive oxygen species (ROS) production. Protein kinase C (PKC) activity was analyzed using ELISA. Results Our results indicated that carvacrol and thymol could significantly protect PC12 cells against Aβ25-35-induced cytotoxicity. Furthermore, Aβ25-35 could induce intracellular ROS production, while carvacrol and thymol could reverse this effect. Moreover, our findings showed that carvacrol and thymol elevate PKC activity similar to Bryostatin-1, as a PKC activator. Conclusion This study provided the evidence regarding the protective effects of carvacrol and thymol against Aβ25–35-induced cytotoxicity in PC12 cells. The results suggested that the neuroprotective effects of these compounds against Aβ25-35 might be through attenuating oxidative damage and increasing the activity of PKC as a memory-related protein. Thus, carvacrol and thymol were found to have therapeutic potential in preventing or modulating AD.
Collapse
Affiliation(s)
- Zahra Azizi
- Department of Physiology and Pharmacology, Pasteur Institute of Iran, Tehran, Iran
| | - Mona Salimi
- Department of Physiology and Pharmacology, Pasteur Institute of Iran, Tehran, Iran
| | - Amir Amanzadeh
- Department of Cell Bank, Pasteur Institute of Iran, Tehran, Iran
| | - Nahid Majelssi
- Department of Physiology and Pharmacology, Pasteur Institute of Iran, Tehran, Iran
| | - Nasser Naghdi
- Department of Physiology and Pharmacology, Pasteur Institute of Iran, Tehran, Iran
| |
Collapse
|
44
|
Farkhondeh T, Pourbagher-Shahri AM, Ashrafizadeh M, Folgado SL, Rajabpour-Sanati A, Khazdair MR, Samarghandian S. Green tea catechins inhibit microglial activation which prevents the development of neurological disorders. Neural Regen Res 2020; 15:1792-1798. [PMID: 32246619 PMCID: PMC7513986 DOI: 10.4103/1673-5374.280300] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The over-activated microglial cells induce neuroinflammation which has the main role in neurological disorders. The over-activated microglia can disturb neuronal function by releasing inflammatory mediators leading to neuronal dysfunctions and death. Thus, inhibition of over-activated microglia may be an effective therapeutic approach for modulating neuroinflammation. Experimental studies have indicated anti-neuroinflammatory effects of flavonoids such as green tea catechins. The current research was aimed to review the effect of green tea catechins in inhibiting microglial cells, inflammatory cascades, and subsequent neurological diseases.
Collapse
Affiliation(s)
- Tahereh Farkhondeh
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | | | - Milad Ashrafizadeh
- Department of Basic Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Silvia Llorens Folgado
- Department of Medical Sciences, Faculty of Medicine of Albacete, Centro Regional de Investigaciones Biomédicas (CRIB), University of Castilla-La Mancha, Albacete, Spain
| | | | - Mohammad Reza Khazdair
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Saeed Samarghandian
- Healthy Ageing Research Center; Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran
| |
Collapse
|
45
|
Fatima A, Siddique YH. Role of Flavonoids in Neurodegenerative Disorders with Special Emphasis on Tangeritin. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2019; 18:581-597. [DOI: 10.2174/1871527318666190916141934] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/12/2019] [Accepted: 07/09/2019] [Indexed: 02/07/2023]
Abstract
Flavonoids are naturally occurring plant polyphenols found universally in all fruits, vegetables
and medicinal plants. They have emerged as a promising candidate in the formulation of treatment
strategies for various neurodegenerative disorders. The use of flavonoid rich plant extracts and
food in dietary supplementation have shown favourable outcomes. The present review describes the
types, properties and metabolism of flavonoids. Neuroprotective role of various flavonoids and the
possible mechanism of action in the brain against the neurodegeneration have been described in detail
with special emphasis on the tangeritin.
Collapse
Affiliation(s)
- Ambreen Fatima
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Yasir Hasan Siddique
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| |
Collapse
|
46
|
Abdul Rahim R, Jayusman PA, Muhammad N, Ahmad F, Mokhtar N, Naina Mohamed I, Mohamed N, Shuid AN. Recent Advances in Nanoencapsulation Systems Using PLGA of Bioactive Phenolics for Protection against Chronic Diseases. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E4962. [PMID: 31817699 PMCID: PMC6950714 DOI: 10.3390/ijerph16244962] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 12/03/2019] [Accepted: 12/04/2019] [Indexed: 12/12/2022]
Abstract
Plant-derived polyphenolic compounds have gained widespread recognition as remarkable nutraceuticals for the prevention and treatment of various disorders, such as cardiovascular, neurodegenerative, diabetes, osteoporosis, and neoplastic diseases. Evidence from the epidemiological studies has suggested the association between long-term consumption of diets rich in polyphenols and protection against chronic diseases. Nevertheless, the applications of these phytochemicals are limited due to its low solubility, low bioavailability, instability, and degradability by in vivo and in vitro conditions. Therefore, in recent years, newer approaches have been attempted to solve the restrictions related to their delivery system. Nanoencapsulation of phenolic compounds with biopolymeric nanoparticles could be a promising strategy for protection and effective delivery of phenolics. Poly(lactic-co-glycolic acid) (PLGA) is one of the most successfully developed biodegradable polymers that has attracted considerable attention due to its attractive properties. In this review, our main goal is to cover the relevant recent studies that explore the pharmaceutical significance and therapeutic superiority of the advance delivery systems of phenolic compounds using PLGA-based nanoparticles. A summary of the recent studies implementing encapsulation techniques applied to polyphenolic compounds from plants confirmed that nanoencapsulation with PLGA nanoparticles is a promising approach to potentialize their therapeutic activity.
Collapse
Affiliation(s)
- Rohanizah Abdul Rahim
- Pharmacology Department, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000 Kuala Lumpur, Malaysia; (R.A.R.); (P.A.J.); (N.M.); (I.N.M.)
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200 Kepala Batas, Pulau Pinang, Malaysia
| | - Putri Ayu Jayusman
- Pharmacology Department, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000 Kuala Lumpur, Malaysia; (R.A.R.); (P.A.J.); (N.M.); (I.N.M.)
| | - Norliza Muhammad
- Pharmacology Department, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000 Kuala Lumpur, Malaysia; (R.A.R.); (P.A.J.); (N.M.); (I.N.M.)
| | - Fairus Ahmad
- Anatomy Department, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000 Kuala Lumpur, Malaysia;
| | - Norfilza Mokhtar
- Physiology Department, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000 Kuala Lumpur, Malaysia;
| | - Isa Naina Mohamed
- Pharmacology Department, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000 Kuala Lumpur, Malaysia; (R.A.R.); (P.A.J.); (N.M.); (I.N.M.)
| | - Norazlina Mohamed
- Pharmacology Department, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000 Kuala Lumpur, Malaysia; (R.A.R.); (P.A.J.); (N.M.); (I.N.M.)
| | - Ahmad Nazrun Shuid
- Pharmacology Department, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, 56000 Kuala Lumpur, Malaysia; (R.A.R.); (P.A.J.); (N.M.); (I.N.M.)
| |
Collapse
|
47
|
Li Y, Gao X, Lou Y. Interactions of tea polyphenols with intestinal microbiota and their implication for cellular signal conditioning mechanism. J Food Biochem 2019; 43:e12953. [PMID: 31368563 DOI: 10.1111/jfbc.12953] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/23/2019] [Accepted: 05/31/2019] [Indexed: 12/14/2022]
Abstract
Tea polyphenols (TP) is the main functional substances in tea. It has been reported that TP can modulate the composition of gut microbes in the human body, in addition, after the bio-transformation by intestinal flora, the metabolites of TP also have positive effects on the health of the host. Lots of researches have shown that TP have possible therapeutic effect against high fat diet induced obesity, which is closely related to the gut flora of the host. Therefore, this review focused on the interactions of TP with intestinal microbiota and their implication for cellular signal conditioning mechanism that will enable us to better study the two-way effects of TP and intestinal microbiota on host health improvement. PRACTICAL APPLICATIONS: TP have been widely concerned for their health care properties. As the functional food components, TP have strong antioxidant and physiological activities for human body. A better understanding on the interactions of TP with intestinal microbiota and their implication for cellular signal conditioning mechanism will lead us to better evaluate the contribution of the microbial metabolites of TP, as well as the regulation of intestinal bacterial diversity and abundance for host health.
Collapse
Affiliation(s)
- Yongyong Li
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Xing Gao
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Yongjiang Lou
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| |
Collapse
|
48
|
Polyphenols as Potential Attenuators of Heat Stress in Poultry Production. Antioxidants (Basel) 2019; 8:antiox8030067. [PMID: 30889815 PMCID: PMC6466569 DOI: 10.3390/antiox8030067] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/26/2019] [Accepted: 02/28/2019] [Indexed: 12/14/2022] Open
Abstract
Heat stress is a non-specific physiological response of the body when exposed to high ambient temperatures, which can break the balance of body redox and result in oxidative stress that affects growth performance as well as the health of poultry species. Polyphenols have attracted much attention in recent years due to their antioxidant ability and thus, can be an effective attenuator of heat stress. In this paper, the potential mechanisms underlying the inhibitory effect of polyphenols on heat stress in poultry has been reviewed to provide a reference and ideas for future studies related to polyphenols and poultry production.
Collapse
|
49
|
Henry D, Brumaire S, Hu X. Involvement of pRb-E2F pathway in green tea extract-induced growth inhibition of human myeloid leukemia cells. Leuk Res 2019; 77:34-41. [PMID: 30641474 DOI: 10.1016/j.leukres.2018.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/27/2018] [Accepted: 12/31/2018] [Indexed: 10/27/2022]
Abstract
Both inhibitory and stimulatory effect of EGCG on cancer cells have been reported, which often is linked to receptor tyrosine kinase signaling. In this study, we present evidence that green tea extract and its chemical component, Epigallocatechin-3-gallate (EGCG), inhibit growth of human myeloid leukemia cells through the regulation of pRb synthesis and formation of pRb-E2F complexes. Addition of green tea extract to the culture of TF-1a and MV4-11 myeloid leukemia cells significantly inhibited their proliferation with a substantial portion of cell death being observed. The green tea extract and EGCG had no significant effect on the expression of G1 CDKs and the CDK inhibitors but downregulated the formation of pRb-CDKs. Surprisingly, the expression of pRb was markedly upregulated while the phosphorylation of pRb downregulated. The upregulation of pRb was blocked by pre-treatment with cycloheximide, a protein synthesis inhibitor, suggesting a requirement of protein synthesis. In agreement with these results, pRb-E2F complexes were upregulated and E2F DNA binding activity decreased. Since both TF-1a and MV4-11 are factor-independent cell lines, the upregulation of pRb-E2F complexes and inhibition of DNA binding activity by green tea extract is most likely through a receptor tyrosine kinase-independent pathway. We also found that the stem/progenitor cells derived from these two leukemia cell lines are more sensitive to the inhibitory effect of green tea extract. Our result suggests that concentrated green tea extract and EGCG may have potential for clinical investigation as an inducer of cancer cell death.
Collapse
Affiliation(s)
- Darrell Henry
- Department of Biology, College of Arts & Sciences, Barry University, Miami Shores, Florida 33161, USA
| | - Sebastien Brumaire
- Department of Biology, College of Arts & Sciences, Barry University, Miami Shores, Florida 33161, USA
| | - Xiaotang Hu
- Department of Biology, College of Arts & Sciences, Barry University, Miami Shores, Florida 33161, USA.
| |
Collapse
|
50
|
Algarra NN. Searching for the perfect brain-protecting agent. Minerva Anestesiol 2018; 84:1332-1333. [PMID: 30394069 DOI: 10.23736/s0375-9393.18.13085-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nelson N Algarra
- Department of Anesthesiology, University of Florida College of Medicine, Gainesville, FL, USA -
| |
Collapse
|