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Kumar Nelson V, Jha NK, Nuli MV, Gupta S, Kanna S, Gahtani RM, Hani U, Singh AK, Abomughaid MM, Abomughayedh AM, Almutary AG, Iqbal D, Al Othaim A, Begum SS, Ahmad F, Mishra PC, Jha SK, Ojha S. Unveiling the impact of aging on BBB and Alzheimer's disease: Factors and therapeutic implications. Ageing Res Rev 2024; 98:102224. [PMID: 38346505 DOI: 10.1016/j.arr.2024.102224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 02/01/2024] [Accepted: 02/03/2024] [Indexed: 05/12/2024]
Abstract
Alzheimer's disease (AD) is a highly prevalent neurodegenerative condition that has devastating effects on individuals, often resulting in dementia. AD is primarily defined by the presence of extracellular plaques containing insoluble β-amyloid peptide (Aβ) and neurofibrillary tangles (NFTs) composed of hyperphosphorylated tau protein (P-tau). In addition, individuals afflicted by these age-related illnesses experience a diminished state of health, which places significant financial strain on their loved ones. Several risk factors play a significant role in the development of AD. These factors include genetics, diet, smoking, certain diseases (such as cerebrovascular diseases, obesity, hypertension, and dyslipidemia), age, and alcohol consumption. Age-related factors are key contributors to the development of vascular-based neurodegenerative diseases such as AD. In general, the process of aging can lead to changes in the immune system's responses and can also initiate inflammation in the brain. The chronic inflammation and the inflammatory mediators found in the brain play a crucial role in the dysfunction of the blood-brain barrier (BBB). Furthermore, maintaining BBB integrity is of utmost importance in preventing a wide range of neurological disorders. Therefore, in this review, we discussed the role of age and its related factors in the breakdown of the blood-brain barrier and the development of AD. We also discussed the importance of different compounds, such as those with anti-aging properties, and other compounds that can help maintain the integrity of the blood-brain barrier in the prevention of AD. This review builds a strong correlation between age-related factors, degradation of the BBB, and its impact on AD.
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Affiliation(s)
- Vinod Kumar Nelson
- Raghavendra Institute of Pharmaceutical Education and Research, Anantapur, India.
| | - Niraj Kumar Jha
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; Centre of Research Impact and Outcome, Chitkara University, Rajpura 140401, Punjab, India; School of Bioengineering & Biosciences, Lovely Professional University, Phagwara 144411, India; Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, India.
| | - Mohana Vamsi Nuli
- Raghavendra Institute of Pharmaceutical Education and Research, Anantapur, India
| | - Saurabh Gupta
- Department of Biotechnology, GLA University, Mathura, Uttar Pradesh, India
| | - Sandeep Kanna
- Department of pharmaceutics, Chalapathi Institute of Pharmaceutical Sciences, Chalapathi Nagar, Guntur 522034, India
| | - Reem M Gahtani
- Departement of Clinical Laboratory Sciences, King Khalid University, Abha, Saudi Arabia
| | - Umme Hani
- Department of pharmaceutics, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Arun Kumar Singh
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology BHU, Varanasi, Uttar Pradesh, India
| | - Mosleh Mohammad Abomughaid
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Bisha, Bisha 61922, Saudi Arabia
| | - Ali M Abomughayedh
- Pharmacy Department, Aseer Central Hospital, Ministry of Health, Saudi Arabia
| | - Abdulmajeed G Almutary
- Department of Biomedical Sciences, College of Health Sciences, Abu Dhabi University, Abu Dhabi, P.O. Box 59911, United Arab Emirates
| | - Danish Iqbal
- Department of Health Information Management, College of Applied Medical Sciences, Buraydah Private Colleges, Buraydah 51418, Saudi Arabia
| | - Ayoub Al Othaim
- Department of Medical Laboratory Sciences, College of Applied Medical Science, Majmaah University, Al-Majmaah 11952, Saudi Arabia.
| | - S Sabarunisha Begum
- Department of Biotechnology, P.S.R. Engineering College, Sivakasi 626140, India
| | - Fuzail Ahmad
- Respiratory Care Department, College of Applied Sciences, Almaarefa University, Diriya, Riyadh, 13713, Saudi Arabia
| | - Prabhu Chandra Mishra
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, India
| | - Saurabh Kumar Jha
- Department of Zoology, Kalindi College, University of Delhi, 110008, India.
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, P.O. Box 15551, United Arab Emirates
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Rajendran K, Krishnan UM. Mechanistic insights and emerging therapeutic stratagems for Alzheimer's disease. Ageing Res Rev 2024; 97:102309. [PMID: 38615895 DOI: 10.1016/j.arr.2024.102309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 04/10/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
Alzheimer's disease (AD), a multi-factorial neurodegenerative disorder has affected over 30 million individuals globally and these numbers are expected to increase in the coming decades. Current therapeutic interventions are largely ineffective as they focus on a single target. Development of an effective drug therapy requires a deep understanding of the various factors influencing the onset and progression of the disease. Aging and genetic factors exert a major influence on the development of AD. Other factors like post-viral infections, iron overload, gut dysbiosis, and vascular dysfunction also exacerbate the onset and progression of AD. Further, post-translational modifications in tau, DRP1, CREB, and p65 proteins increase the disease severity through triggering mitochondrial dysfunction, synaptic loss, and differential interaction of amyloid beta with different receptors leading to impaired intracellular signalling. With advancements in neuroscience tools, new inter-relations that aggravate AD are being discovered including pre-existing diseases and exposure to other pathogens. Simultaneously, new therapeutic strategies involving modulation of gene expression through targeted delivery or modulation with light, harnessing the immune response to promote clearance of amyloid deposits, introduction of stem cells and extracellular vesicles to replace the destroyed neurons, exploring new therapeutic molecules from plant, marine and biological sources delivered in the free state or through nanoparticles and use of non-pharmacological interventions like music, transcranial stimulation and yoga. Polypharmacology approaches involving combination of therapeutic agents are also under active investigation for superior therapeutic outcomes. This review elaborates on various disease-causing factors, their underlying mechanisms, the inter-play between different disease-causing players, and emerging therapeutic options including those under clinical trials, for treatment of AD. The challenges involved in AD therapy and the way forward have also been discussed.
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Affiliation(s)
- Kayalvizhi Rajendran
- School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamilnadu 613401, India; Centre for Nanotechnology & Advanced Biomaterials, SASTRA Deemed University, Thanjavur, Tamilnadu 613401, India
| | - Uma Maheswari Krishnan
- School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamilnadu 613401, India; Centre for Nanotechnology & Advanced Biomaterials, SASTRA Deemed University, Thanjavur, Tamilnadu 613401, India; School of Arts, Sciences, Humanities & Education, SASTRA Deemed University, Thanjavur, Tamilnadu 613401, India.
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3
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Blagov AV, Summerhill VI, Sukhorukov VN, Zhigmitova EB, Postnov AY, Orekhov AN. Potential use of antioxidants for the treatment of chronic inflammatory diseases. Front Pharmacol 2024; 15:1378335. [PMID: 38818374 PMCID: PMC11137403 DOI: 10.3389/fphar.2024.1378335] [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: 01/29/2024] [Accepted: 04/26/2024] [Indexed: 06/01/2024] Open
Abstract
The excessive production of various reactive oxidant species over endogenous antioxidant defense mechanisms leads to the development of a state of oxidative stress, with serious biological consequences. The consequences of oxidative stress depend on the balance between the generation of reactive oxidant species and the antioxidant defense and include oxidative damage of biomolecules, disruption of signal transduction, mutation, and cell apoptosis. Accumulating evidence suggests that oxidative stress is involved in the physiopathology of various debilitating illnesses associated with chronic inflammation, including cardiovascular diseases, diabetes, cancer, or neurodegenerative processes, that need continuous pharmacological treatment. Oxidative stress and chronic inflammation are tightly linked pathophysiological processes, one of which can be simply promoted by another. Although, many antioxidant trials have been unsuccessful (some of the trials showed either no effect or even harmful effects) in human patients as a preventive or curative measure, targeting oxidative stress remains an interesting therapeutic approach for the development of new agents to design novel anti-inflammatory drugs with a reliable safety profile. In this regard, several natural antioxidant compounds were explored as potential therapeutic options for the treatment of chronic inflammatory diseases. Several metalloenzymes, such as superoxide dismutase, catalase, and glutathione peroxidase, are among the essential enzymes that maintain the low nanomolar physiological concentrations of superoxide (O2•-) and hydrogen peroxide (H2O2), the major redox signaling molecules, and thus play important roles in the alteration of the redox homeostasis. These enzymes have become a striking source of motivation to design catalytic drugs to enhance the action of these enzymes under pathological conditions related to chronic inflammation. This review is focused on several major representatives of natural and synthetic antioxidants as potential drug candidates for the treatment of chronic inflammatory diseases.
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Affiliation(s)
| | | | - Vasily N. Sukhorukov
- Institute of General Pathology and Pathophysiology, Moscow, Russia
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Federal State Budgetary Scientific Institution, Petrovsky National Research Centre of Surgery (FSBSI “Petrovsky NRCS”), Moscow, Russia
| | | | - Anton Y. Postnov
- Institute of General Pathology and Pathophysiology, Moscow, Russia
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Federal State Budgetary Scientific Institution, Petrovsky National Research Centre of Surgery (FSBSI “Petrovsky NRCS”), Moscow, Russia
| | - Alexander N. Orekhov
- Institute of General Pathology and Pathophysiology, Moscow, Russia
- Institute for Atherosclerosis Research, Moscow, Russia
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Federal State Budgetary Scientific Institution, Petrovsky National Research Centre of Surgery (FSBSI “Petrovsky NRCS”), Moscow, Russia
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Perluigi M, Di Domenico F, Butterfield DA. Oxidative damage in neurodegeneration: roles in the pathogenesis and progression of Alzheimer disease. Physiol Rev 2024; 104:103-197. [PMID: 37843394 DOI: 10.1152/physrev.00030.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/30/2023] [Accepted: 05/24/2023] [Indexed: 10/17/2023] Open
Abstract
Alzheimer disease (AD) is associated with multiple etiologies and pathological mechanisms, among which oxidative stress (OS) appears as a major determinant. Intriguingly, OS arises in various pathways regulating brain functions, and it seems to link different hypotheses and mechanisms of AD neuropathology with high fidelity. The brain is particularly vulnerable to oxidative damage, mainly because of its unique lipid composition, resulting in an amplified cascade of redox reactions that target several cellular components/functions ultimately leading to neurodegeneration. The present review highlights the "OS hypothesis of AD," including amyloid beta-peptide-associated mechanisms, the role of lipid and protein oxidation unraveled by redox proteomics, and the antioxidant strategies that have been investigated to modulate the progression of AD. Collected studies from our groups and others have contributed to unraveling the close relationships between perturbation of redox homeostasis in the brain and AD neuropathology by elucidating redox-regulated events potentially involved in both the pathogenesis and progression of AD. However, the complexity of AD pathological mechanisms requires an in-depth understanding of several major intracellular pathways affecting redox homeostasis and relevant for brain functions. This understanding is crucial to developing pharmacological strategies targeting OS-mediated toxicity that may potentially contribute to slow AD progression as well as improve the quality of life of persons with this severe dementing disorder.
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Affiliation(s)
- Marzia Perluigi
- Department of Biochemical Sciences "A. Rossi Fanelli," Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Fabio Di Domenico
- Department of Biochemical Sciences "A. Rossi Fanelli," Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - D Allan Butterfield
- Department of Chemistry and Sanders-Brown Center on Aging, University of Kentucky, Lexington, Kentucky, United States
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Zheng Y, Zhang X, Zhang R, Wang Z, Gan J, Gao Q, Yang L, Xu P, Jiang X. Inflammatory signaling pathways in the treatment of Alzheimer's disease with inhibitors, natural products and metabolites (Review). Int J Mol Med 2023; 52:111. [PMID: 37800614 PMCID: PMC10558228 DOI: 10.3892/ijmm.2023.5314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/11/2023] [Indexed: 10/07/2023] Open
Abstract
The intricate nature of Alzheimer's disease (AD) pathogenesis poses a persistent obstacle to drug development. In recent times, neuroinflammation has emerged as a crucial pathogenic mechanism of AD, and the targeting of inflammation has become a viable approach for the prevention and management of AD. The present study conducted a comprehensive review of the literature between October 2012 and October 2022, identifying a total of 96 references, encompassing 91 distinct pharmaceuticals that have been investigated for their potential impact on AD by inhibiting neuroinflammation. Research has shown that pharmaceuticals have the potential to ameliorate AD by reducing neuroinflammation mainly through regulating inflammatory signaling pathways such as NF‑κB, MAPK, NLRP3, PPARs, STAT3, CREB, PI3K/Akt, Nrf2 and their respective signaling pathways. Among them, tanshinone IIA has been extensively studied for its anti‑inflammatory effects, which have shown significant pharmacological properties and can be applied clinically. Thus, it may hold promise as an effective drug for the treatment of AD. The present review elucidated the inflammatory signaling pathways of pharmaceuticals that have been investigated for their therapeutic efficacy in AD and elucidates their underlying mechanisms. This underscores the auspicious potential of pharmaceuticals in ameliorating AD by impeding neuroinflammation.
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Affiliation(s)
| | | | - Ruifeng Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Ziyu Wang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Jiali Gan
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Qing Gao
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Lin Yang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Pengjuan Xu
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Xijuan Jiang
- Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
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6
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Hsu SS, Lin YS, Chen HC, Liang WZ. Involvement of oxidative stress-related apoptosis in chlorpyrifos-induced cytotoxicity and the ameliorating potential of the antioxidant vitamin E in human glioblastoma cells. ENVIRONMENTAL TOXICOLOGY 2023; 38:2143-2154. [PMID: 37283489 DOI: 10.1002/tox.23850] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 04/18/2023] [Accepted: 05/28/2023] [Indexed: 06/08/2023]
Abstract
Organophosphate pesticides (OPs), which are among the most widely used synthetic chemicals for the control of a wide variety of pests, are however associated with various adverse reactions in animals and humans. Chlorpyrifos, an OP, has been shown to cause various health complications due to ingestion, inhalation, or skin absorption. The mechanisms underlying the adverse effect of chlorpyrifos on neurotoxicity have not been elucidated. Therefore, we aimed to determine the mechanism of chlorpyrifos-induced cytotoxicity and to examine whether the antioxidant vitamin E (VE) ameliorated these cytotoxic effects using DBTRG-05MG, a human glioblastoma cell line. The DBTRG-05MG cells were treated with chlorpyrifos, VE, or chlorpyrifos plus VE and compared with the untreated control cells. Chlorpyrifos induced a significant decrease in cell viability and caused morphological changes in treated cultures. Furthermore, chlorpyrifos led to the increased production of reactive oxygen species (ROS) accompanied by a decrease in the level of reduced glutathione. Additionally, chlorpyrifos induced apoptosis by upregulating the protein levels of Bax and cleaved caspase-9/caspase-3 and by downregulating the protein levels of Bcl-2. Moreover, chlorpyrifos modulated the antioxidant response by increasing the protein levels of Nrf2, HO-1, and NQO1. However, VE reversed the cytotoxicity and oxidative stress induced by chlorpyrifos treatment in DBTRG-05MG cells. Overall, these findings suggest that chlorpyrifos causes cytotoxicity through oxidative stress, a process that may play an important role in the development of chlorpyrifos-associated glioblastoma.
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Affiliation(s)
- Shu-Shong Hsu
- Department of Neurosurgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- Department of Neurosurgery, National Defense Medical Center, Taipei, Taiwan
- College of Health and Nursing, Meiho University, Pingtung, Taiwan
| | - Yung-Shang Lin
- Department of Neurosurgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- Department of Neurosurgery, Pingtung Veterans General Hospital, Pingtung, Taiwan
| | - Hui-Ching Chen
- Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Wei-Zhe Liang
- Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung, Taiwan
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
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7
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da Cunha Germano BC, de Morais LCC, Idalina Neta F, Fernandes ACL, Pinheiro FI, do Rego ACM, Araújo Filho I, de Azevedo EP, de Paiva Cavalcanti JRL, Guzen FP, Cobucci RN. Vitamin E and Its Molecular Effects in Experimental Models of Neurodegenerative Diseases. Int J Mol Sci 2023; 24:11191. [PMID: 37446369 DOI: 10.3390/ijms241311191] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
With the advancement of in vivo studies and clinical trials, the pathogenesis of neurodegenerative diseases has been better understood. However, gaps still need to be better elucidated, which justifies the publication of reviews that explore the mechanisms related to the development of these diseases. Studies show that vitamin E supplementation can protect neurons from the damage caused by oxidative stress, with a positive impact on the prevention and progression of neurodegenerative diseases. Thus, this review aims to summarize the scientific evidence of the effects of vitamin E supplementation on neuroprotection and on neurodegeneration markers in experimental models. A search for studies published between 2000 and 2023 was carried out in the PubMed, Web of Science, Virtual Health Library (BVS), and Embase databases, in which the effects of vitamin E in experimental models of neurodegeneration were investigated. A total of 5669 potentially eligible studies were identified. After excluding the duplicates, 5373 remained, of which 5253 were excluded after checking the titles, 90 articles after reading the abstracts, and 11 after fully reviewing the manuscripts, leaving 19 publications to be included in this review. Experiments with in vivo models of neurodegenerative diseases demonstrated that vitamin E supplementation significantly improved memory, cognition, learning, motor function, and brain markers associated with neuroregeneration and neuroprotection. Vitamin E supplementation reduced beta-amyloid (Aβ) deposition and toxicity in experimental models of Alzheimer's disease. In addition, it decreased tau-protein hyperphosphorylation and increased superoxide dismutase and brain-derived neurotrophic factor (BDNF) levels in rodents, which seems to indicate the potential use of vitamin E in preventing and delaying the progress of degenerative lesions in the central nervous system.
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Affiliation(s)
- Bianca Caroline da Cunha Germano
- Postgraduate Program in Science Applied to Women's Health, Federal University of Rio Grande do Norte (UFRN), Natal 59072-970, Brazil
| | - Lara Cristina Carlos de Morais
- Postgratuate Program in Health and Society, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
- Laboratory of Experimental Neurology, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
| | - Francisca Idalina Neta
- Laboratory of Experimental Neurology, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
- Postgraduate Program in Physiological Sciences, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
| | - Amélia Carolina Lopes Fernandes
- Laboratory of Experimental Neurology, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
- Postgraduate Program in Physiological Sciences, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
| | - Francisco Irochima Pinheiro
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal 59056-000, Brazil
- Medical School, Health School, Potiguar University (UnP), Natal 59056-000, Brazil
| | | | - Irami Araújo Filho
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal 59056-000, Brazil
- Medical School, Health School, Potiguar University (UnP), Natal 59056-000, Brazil
| | - Eduardo Pereira de Azevedo
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal 59056-000, Brazil
| | - José Rodolfo Lopes de Paiva Cavalcanti
- Postgratuate Program in Health and Society, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
- Laboratory of Experimental Neurology, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
- Postgraduate Program in Physiological Sciences, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
| | - Fausto Pierdona Guzen
- Postgratuate Program in Health and Society, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
- Laboratory of Experimental Neurology, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
- Postgraduate Program in Physiological Sciences, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró 59607-360, Brazil
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal 59056-000, Brazil
| | - Ricardo Ney Cobucci
- Postgraduate Program in Science Applied to Women's Health, Federal University of Rio Grande do Norte (UFRN), Natal 59072-970, Brazil
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal 59056-000, Brazil
- Medical School, Health School, Potiguar University (UnP), Natal 59056-000, Brazil
- Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte (UFRN), Natal 59078-900, Brazil
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8
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Revisiting the Role of Vitamins and Minerals in Alzheimer's Disease. Antioxidants (Basel) 2023; 12:antiox12020415. [PMID: 36829974 PMCID: PMC9952129 DOI: 10.3390/antiox12020415] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Alzheimer's disease (AD) is the most common type of dementia that affects millions of individuals worldwide. It is an irreversible neurodegenerative disorder that is characterized by memory loss, impaired learning and thinking, and difficulty in performing regular daily activities. Despite nearly two decades of collective efforts to develop novel medications that can prevent or halt the disease progression, we remain faced with only a few options with limited effectiveness. There has been a recent growth of interest in the role of nutrition in brain health as we begin to gain a better understanding of what and how nutrients affect hormonal and neural actions that not only can lead to typical cardiovascular or metabolic diseases but also an array of neurological and psychiatric disorders. Vitamins and minerals, also known as micronutrients, are elements that are indispensable for functions including nutrient metabolism, immune surveillance, cell development, neurotransmission, and antioxidant and anti-inflammatory properties. In this review, we provide an overview on some of the most common vitamins and minerals and discuss what current studies have revealed on the link between these essential micronutrients and cognitive performance or AD.
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9
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Haghjoo S, Hedayati Ch M, Rostampour M, Khakpour-Taleghani B. Red-light radiation: does it enhance memory by increasing hippocampal LRP-1 and TRPA-1 genes expression? Int J Radiat Biol 2023; 99:329-339. [PMID: 35446172 DOI: 10.1080/09553002.2022.2069300] [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: 02/03/2023]
Abstract
PURPOSE Despite the extensive efforts to treat the leading cause of neurodegenerative diseases (ND), a little progress has been reported. Red light might affect ND through many specific mechanisms. The purpose of this investigation is to explore the effect of red light on the expression of low-density lipoprotein receptor-1 (LRP-1) and transient receptor potential ankyrin-1 (TRPA-1) gene in the hippocampus, and the serum melatonin level (SML) of the lipopolysaccharide (LPS)-induced neuro-inflammated rats. MATERIALS AND METHODS Red-light therapy was implemented using a wavelength 630 nm under different light conditions and the passive avoidance (PA) and Y-Maze tests were employed to assess memory performance. To evaluate the LRP-1 and TRPA-1 genes expression, quantitive real-time polymerase chain reaction was performed. To measure the SML, ELISA was performed before and after the red-light radiation. RESULTS LPS caused memory impairment in both behavioral tests. Red-light therapy improved PA memory in all light conditions (p < .001). However, in Y-maze, only the red-light radiation during light and dark cycles, improved memory (p < .01 and p < .001, respectively). In addition, red-light radiation caused significant increase in SML (p < .05). The LRP-1 and TRPA-1 genes expression increased significantly during the dark phase in the red light radiated group compared to non-radiated group (p < .001). CONCLUSIONS Taken together, the results suggest that red-light therapy can reduce the complications of memory impairment in rats. This study has found that red-light therapy demonstrates higher effect during the period of dark phase compared to light phase. No doubt, further experimental studies would help us to establish a greater degree of accuracy on this matter.
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Affiliation(s)
- Saereh Haghjoo
- School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Mojtaba Hedayati Ch
- Department of Microbiology, Faculty of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Mohammad Rostampour
- Neuroscience Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.,Department of Physiology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Behrooz Khakpour-Taleghani
- Neuroscience Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.,Department of Physiology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
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10
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Babazadeh A, Vahed FM, Liu Q, Siddiqui SA, Kharazmi MS, Jafari SM. Natural Bioactive Molecules as Neuromedicines for the Treatment/Prevention of Neurodegenerative Diseases. ACS OMEGA 2023; 8:3667-3683. [PMID: 36743024 PMCID: PMC9893457 DOI: 10.1021/acsomega.2c06098] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 12/29/2022] [Indexed: 06/18/2023]
Abstract
The brain is vulnerable to different types of stresses, particularly oxidative stress as a result of oxygen requirements/utilization in the body. Large amounts of unsaturated fatty acids present in the brain increase this vulnerability. Neurodegenerative diseases (NDDs) are brain disorders that are characterized by the gradual loss of specific neurons and are attributed to broad evidence of cell-level oxidative stress. The accurate characterization of neurological disorders relies on several parameters along with genetics and environmental risk factors, making therapies less efficient to fight NDDs. On the way to tackle oxidative damage and discover efficient and safe therapies, bioactives are at the edge of NDD science. Naturally occurring bioactive compounds such as polyphenols, carotenoids, essential fatty acids, phytosterols, essential oils, etc. are particularly of interest owing to their potent antioxidant and anti-inflammatory activities, and they offer lots of brain-health-promoting features. This Review focuses on probing the neuroefficacy and bioefficacy of bioactives and their role in supporting relatively low antioxidative and low regenerative capacities of the brain, neurogenesis, neuroprotection, and ameliorating/treating NDDs.
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Affiliation(s)
- Afshin Babazadeh
- Center
for Motor Neuron Disease Research, Macquarie Medical School, Faculty
of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Fereshteh Mohammadi Vahed
- Center
for Motor Neuron Disease Research, Macquarie Medical School, Faculty
of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Qi Liu
- Institute
of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225009, China
- Jiangsu
Key Laboratory of Integrated Traditional Chinese and Western Medicine
for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou 225009, China
| | - Shahida Anusha Siddiqui
- Technical
University of Munich Campus Straubing for Biotechnology and Sustainability, Essigberg 3, 94315 Straubing, Germany
- German
Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing-Straße 7, 49610 D Quakenbrück, Germany
| | | | - Seid Mahdi Jafari
- Department
of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan 4913815739, Iran
- Nutrition
and Bromatology Group, Department of Analytical Chemistry and Food
Science, Faculty of Science, Universidade
de Vigo, E-32004 Ourense, Spain
- College
of Food Science and Technology, Hebei Agricultural
University, Baoding 071001, China
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11
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Varesi A, Campagnoli LIM, Carrara A, Pola I, Floris E, Ricevuti G, Chirumbolo S, Pascale A. Non-Enzymatic Antioxidants against Alzheimer's Disease: Prevention, Diagnosis and Therapy. Antioxidants (Basel) 2023; 12:antiox12010180. [PMID: 36671042 PMCID: PMC9855271 DOI: 10.3390/antiox12010180] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 01/13/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive memory loss and cognitive decline. Although substantial research has been conducted to elucidate the complex pathophysiology of AD, the therapeutic approach still has limited efficacy in clinical practice. Oxidative stress (OS) has been established as an early driver of several age-related diseases, including neurodegeneration. In AD, increased levels of reactive oxygen species mediate neuronal lipid, protein, and nucleic acid peroxidation, mitochondrial dysfunction, synaptic damage, and inflammation. Thus, the identification of novel antioxidant molecules capable of detecting, preventing, and counteracting AD onset and progression is of the utmost importance. However, although several studies have been published, comprehensive and up-to-date overviews of the principal anti-AD agents harboring antioxidant properties remain scarce. In this narrative review, we summarize the role of vitamins, minerals, flavonoids, non-flavonoids, mitochondria-targeting molecules, organosulfur compounds, and carotenoids as non-enzymatic antioxidants with AD diagnostic, preventative, and therapeutic potential, thereby offering insights into the relationship between OS and neurodegeneration.
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Affiliation(s)
- Angelica Varesi
- Department of Biology and Biotechnology, University of Pavia, 27100 Pavia, Italy
| | | | - Adelaide Carrara
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
| | - Ilaria Pola
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Elena Floris
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy
| | - Giovanni Ricevuti
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
| | - Salvatore Chirumbolo
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37129 Verona, Italy
| | - Alessia Pascale
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, 27100 Pavia, Italy
- Correspondence:
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12
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Ablinger I, Dressel K, Rott T, Lauer AA, Tiemann M, Batista JP, Taddey T, Grimm HS, Grimm MOW. Interdisciplinary Approaches to Deal with Alzheimer's Disease-From Bench to Bedside: What Feasible Options Do Already Exist Today? Biomedicines 2022; 10:2922. [PMID: 36428494 PMCID: PMC9687885 DOI: 10.3390/biomedicines10112922] [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: 09/30/2022] [Revised: 11/03/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
Alzheimer's disease is one of the most common neurodegenerative diseases in the western population. The incidence of this disease increases with age. Rising life expectancy and the resulting increase in the ratio of elderly in the population are likely to exacerbate socioeconomic problems. Alzheimer's disease is a multifactorial disease. In addition to amyloidogenic processing leading to plaques, and tau pathology, but also other molecular causes such as oxidative stress or inflammation play a crucial role. We summarize the molecular mechanisms leading to Alzheimer's disease and which potential interventions are known to interfere with these mechanisms, focusing on nutritional approaches and physical activity but also the beneficial effects of cognition-oriented treatments with a focus on language and communication. Interestingly, recent findings also suggest a causal link between oral conditions, such as periodontitis or edentulism, and Alzheimer's disease, raising the question of whether dental intervention in Alzheimer's patients can be beneficial as well. Unfortunately, all previous single-domain interventions have been shown to have limited benefit to patients. However, the latest studies indicate that combining these efforts into multidomain approaches may have increased preventive or therapeutic potential. Therefore, as another emphasis in this review, we provide an overview of current literature dealing with studies combining the above-mentioned approaches and discuss potential advantages compared to monotherapies. Considering current literature and intervention options, we also propose a multidomain interdisciplinary approach for the treatment of Alzheimer's disease patients that synergistically links the individual approaches. In conclusion, this review highlights the need to combine different approaches in an interdisciplinary manner, to address the future challenges of Alzheimer's disease.
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Affiliation(s)
- Irene Ablinger
- Speech and Language Therapy, Campus Bonn, SRH University of Applied Health Sciences, 53111 Bonn, Germany
| | - Katharina Dressel
- Speech and Language Therapy, Campus Düsseldorf, SRH University of Applied Health Sciences, 40210 Düsseldorf, Germany
| | - Thea Rott
- Interdisciplinary Periodontology and Prevention, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany
| | - Anna Andrea Lauer
- Nutrition Therapy and Counseling, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany
- Experimental Neurology, Saarland University, 66424 Homburg, Germany
| | - Michael Tiemann
- Sport Science, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany
| | - João Pedro Batista
- Sport Science and Physiotherapy, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany
| | - Tim Taddey
- Physiotherapy, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany
| | - Heike Sabine Grimm
- Nutrition Therapy and Counseling, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany
- Experimental Neurology, Saarland University, 66424 Homburg, Germany
| | - Marcus Otto Walter Grimm
- Nutrition Therapy and Counseling, Campus Rheinland, SRH University of Applied Health Sciences, 51377 Leverkusen, Germany
- Experimental Neurology, Saarland University, 66424 Homburg, Germany
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13
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Lipids in Pathophysiology and Development of the Membrane Lipid Therapy: New Bioactive Lipids. MEMBRANES 2021; 11:membranes11120919. [PMID: 34940418 PMCID: PMC8708953 DOI: 10.3390/membranes11120919] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/16/2021] [Accepted: 11/19/2021] [Indexed: 12/19/2022]
Abstract
Membranes are mainly composed of a lipid bilayer and proteins, constituting a checkpoint for the entry and passage of signals and other molecules. Their composition can be modulated by diet, pathophysiological processes, and nutritional/pharmaceutical interventions. In addition to their use as an energy source, lipids have important structural and functional roles, e.g., fatty acyl moieties in phospholipids have distinct impacts on human health depending on their saturation, carbon length, and isometry. These and other membrane lipids have quite specific effects on the lipid bilayer structure, which regulates the interaction with signaling proteins. Alterations to lipids have been associated with important diseases, and, consequently, normalization of these alterations or regulatory interventions that control membrane lipid composition have therapeutic potential. This approach, termed membrane lipid therapy or membrane lipid replacement, has emerged as a novel technology platform for nutraceutical interventions and drug discovery. Several clinical trials and therapeutic products have validated this technology based on the understanding of membrane structure and function. The present review analyzes the molecular basis of this innovative approach, describing how membrane lipid composition and structure affects protein-lipid interactions, cell signaling, disease, and therapy (e.g., fatigue and cardiovascular, neurodegenerative, tumor, infectious diseases).
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14
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Chen F, Yang D, Cheng XY, Yang H, Yang XH, Liu HT, Wang R, Zheng P, Yao Y, Li J. Astragaloside IV Ameliorates Cognitive Impairment and Neuroinflammation in an Oligomeric Aβ Induced Alzheimer's Disease Mouse Model via Inhibition of Microglial Activation and NADPH Oxidase Expression. Biol Pharm Bull 2021; 44:1688-1696. [PMID: 34433707 DOI: 10.1248/bpb.b21-00381] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Microglial activation and neuroinflammation induced by amyloid β (Aβ) play pivotal roles in Alzheimer's disease (AD) pathogenesis. Astragaloside IV (AS-IV) is one of the major active compounds of the traditional Chinese medicine Astmgali Radix. It has been reported that AS-IV could protect against Aβ-induced neuroinflammation and cognitive impairment, but the underlying mechanisms need to be further clarified. In this study, the therapeutic effects of AS-IV were investigated in an oligomeric Aβ (oAβ) induced AD mice model. The effects of AS-IV on microglial activation, neuronal damage and reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase expression were further studied. Different doses of AS-IV were administered intragastrically once a day after intracerebroventricularly oAβ injection. Results of behavioral experiments including novel object recognition (NOR) test and Morris water maze (MWM) test revealed that AS-IV administration could significantly ameliorate oAβ-induced cognitive impairment in a dose dependent manner. Enzyme linked immunosorbent assay (ELISA) results showed that increased levels of reactive oxygen species (ROS), tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β) and IL-6 in hippocampal tissues induced by oAβ injection were remarkably inhibited after AS-IV treatment. OAβ induced microglial activation and neuronal damage was significantly suppressed in AS-IV-treated mice brain, observed in immunohistochemistry results. Furthermore, oAβ upregulated protein expression of NADPH oxidase subunits gp91phox, p47phox, p22phox and p67phox were remarkably reduced by AS-IV in Western blotting assay. These results revealed that AS-IV could ameliorate oAβ-induced cognitive impairment, neuroinflammation and neuronal damage, which were possibly mediated by inhibition of microglial activation and down-regulation of NADPH oxidase protein expression. Our findings provide new insights of AS-IV for the treatment of neuroinflammation related diseases such as AD.
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Affiliation(s)
- Fei Chen
- School of Pharmacy, Ningxia Engineering and Technology Research Center for Modernization of Traditional Chinese Medicine, and Key Laboratory of Traditional Chinese Medicine Modernization, Ministry of Education, Ningxia Medical University
| | - Dan Yang
- School of Pharmacy, Ningxia Engineering and Technology Research Center for Modernization of Traditional Chinese Medicine, and Key Laboratory of Traditional Chinese Medicine Modernization, Ministry of Education, Ningxia Medical University
| | - Xiao-Yu Cheng
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease, the Second Affiliated Hospital, Soochow University
| | - Hui Yang
- Research Center of Medical Science and Technology, Ningxia Medical University
| | - Xin-He Yang
- School of Pharmacy, Ningxia Engineering and Technology Research Center for Modernization of Traditional Chinese Medicine, and Key Laboratory of Traditional Chinese Medicine Modernization, Ministry of Education, Ningxia Medical University
| | - He-Tao Liu
- School of Basic Medical Sciences, Ningxia Medical University
| | - Rui Wang
- School of Pharmacy, Ningxia Engineering and Technology Research Center for Modernization of Traditional Chinese Medicine, and Key Laboratory of Traditional Chinese Medicine Modernization, Ministry of Education, Ningxia Medical University
| | - Ping Zheng
- School of Pharmacy, Ningxia Engineering and Technology Research Center for Modernization of Traditional Chinese Medicine, and Key Laboratory of Traditional Chinese Medicine Modernization, Ministry of Education, Ningxia Medical University
| | - Yao Yao
- School of Basic Medical Sciences, Ningxia Medical University
| | - Juan Li
- School of Pharmacy, Ningxia Engineering and Technology Research Center for Modernization of Traditional Chinese Medicine, and Key Laboratory of Traditional Chinese Medicine Modernization, Ministry of Education, Ningxia Medical University
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15
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Liang J, Wang C, Zhang H, Huang J, Xie J, Chen N. Exercise-Induced Benefits for Alzheimer's Disease by Stimulating Mitophagy and Improving Mitochondrial Function. Front Aging Neurosci 2021; 13:755665. [PMID: 34658846 PMCID: PMC8519401 DOI: 10.3389/fnagi.2021.755665] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/06/2021] [Indexed: 12/11/2022] Open
Abstract
Neurons are highly specialized post-mitotic cells that are inherently dependent on mitochondria due to their higher bioenergetic demand. Mitochondrial dysfunction is closely associated with a variety of aging-related neurological disorders, such as Alzheimer’s disease (AD), and the accumulation of dysfunctional and superfluous mitochondria has been reported as an early stage that significantly facilitates the progression of AD. Mitochondrial damage causes bioenergetic deficiency, intracellular calcium imbalance and oxidative stress, thereby aggravating β-amyloid (Aβ) accumulation and Tau hyperphosphorylation, and further leading to cognitive decline and memory loss. Although there is an intricate parallel relationship between mitochondrial dysfunction and AD, their triggering factors, such as Aβ aggregation and hyperphosphorylated Tau protein and action time, are still unclear. Moreover, many studies have confirmed abnormal mitochondrial biosynthesis, dynamics and functions will present once the mitochondrial quality control is impaired, thus leading to aggravated AD pathological changes. Accumulating evidence shows beneficial effects of appropriate exercise on improved mitophagy and mitochondrial function to promote mitochondrial plasticity, reduce oxidative stress, enhance cognitive capacity and reduce the risks of cognitive impairment and dementia in later life. Therefore, stimulating mitophagy and optimizing mitochondrial function through exercise may forestall the neurodegenerative process of AD.
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Affiliation(s)
- Jiling Liang
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Health Science, Wuhan Sports University, Wuhan, China
| | - Cenyi Wang
- School of Physical Education and Sports Science, Soochow University, Suzhou, China
| | - Hu Zhang
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Health Science, Wuhan Sports University, Wuhan, China
| | - Jielun Huang
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Health Science, Wuhan Sports University, Wuhan, China
| | - Juying Xie
- Affiliated Hospital of Xiangnan University, Chenzhou, China
| | - Ning Chen
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Health Science, Wuhan Sports University, Wuhan, China
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16
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Zueva I, Lushchekina S, Shulnikova P, Lenina O, Petrov K, Molochkina E, Masson P. α-tocopherol, a slow-binding inhibitor of acetylcholinesterase. Chem Biol Interact 2021; 348:109646. [PMID: 34506764 DOI: 10.1016/j.cbi.2021.109646] [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: 05/27/2021] [Revised: 08/03/2021] [Accepted: 09/06/2021] [Indexed: 11/29/2022]
Abstract
Acetylcholinesterase (AChE) is reversibly inhibited by α-tocopherol (α-T). Steady state kinetic analysis shows that α-T is a mixed slow-binding inhibitor of type A of human enzyme (Kci = 0.49 μM; Kui = 1.6 μM) with a residence time of 2 min on target. Molecular dynamics (MD) simulations support this mechanism, and indicate that α-T first forms multiple non-specific interactions with AChE surface near the gorge entrance, then binds to the peripheral side with alkylene chain slowly sliding down the gorge, inducing no significant conformational change. α-T slightly modulates the progressive inhibition of AChE by the cyclic organophosphorus, cresyl saligenylphosphate, accelerating the fast pseudo-first order process of phosphorylation. A moderate accelerating effect of α-T on phosphorylation by paraoxon was also observed after pre-incubation of AChE in the presence of α-T. This accelerating effect of α-T on ex vivo paraoxon-induced diaphragm muscle weakness was also observed. The effect of α-T on AChE phosphylation was interpreted in light of molecular modeling results. From all results it is clear that α-T does not protect AChE against phosphylation by organophosphorus.
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Affiliation(s)
- Irina Zueva
- Arbuzov Institute of Organic and Physical Chemistry, Federal Research Center "Kazan Scientific Center of the Russian Academy of Sciences", Arbuzov str., 8, Kazan, 420088, Russian Federation
| | - Sofya Lushchekina
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin str 4, Moscow, 119334, Russian Federation
| | - Polina Shulnikova
- Kazan Federal University, Neuropharmacology Laboratory, Kremlevskaya str 18, 480002, Kazan, Russian Federation
| | - Oksana Lenina
- Arbuzov Institute of Organic and Physical Chemistry, Federal Research Center "Kazan Scientific Center of the Russian Academy of Sciences", Arbuzov str., 8, Kazan, 420088, Russian Federation
| | - Konstantin Petrov
- Arbuzov Institute of Organic and Physical Chemistry, Federal Research Center "Kazan Scientific Center of the Russian Academy of Sciences", Arbuzov str., 8, Kazan, 420088, Russian Federation
| | - Elena Molochkina
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin str 4, Moscow, 119334, Russian Federation
| | - Patrick Masson
- Kazan Federal University, Neuropharmacology Laboratory, Kremlevskaya str 18, 480002, Kazan, Russian Federation.
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17
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Upaganlawar AB, Wankhede NL, Kale MB, Umare MD, Sehgal A, Singh S, Bhatia S, Al-Harrasi A, Najda A, Nurzyńska-Wierdak R, Bungau S, Behl T. Interweaving epilepsy and neurodegeneration: Vitamin E as a treatment approach. Biomed Pharmacother 2021; 143:112146. [PMID: 34507113 DOI: 10.1016/j.biopha.2021.112146] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 12/29/2022] Open
Abstract
Epilepsy is the most common neurological disorder, affecting nearly 50 million people worldwide. The condition can be manifested either due to genetic predisposition or acquired from acute insult which leads to alteration of cellular and molecular mechanisms. Evaluating the latest and the current knowledge in regard to the mechanisms underlying molecular and cellular alteration, hyperexcitability is a consequence of an imbalanced state wherein enhance excitatory glutamatergic and reduced inhibitory GABAergic signaling is considered to be accountable for seizures associated damage. However, neurodegeneration contributing to epileptogenesis has become increasingly appreciated. The components at the helm of neurodegenerative alterations during epileptogenesis include GABAergic neuronal and receptor changes, neuroinflammation, alteration in axonal transport, oxidative stress, excitotoxicity, and other cellular as well as functional changes. Targeting neurodegeneration with vitamin E as an antioxidant, anti-inflammatory and neuroprotective may prove to be one of the therapeutic approaches useful in managing epilepsy. In this review, we discuss and converse about the seizure-induced episodes as a link for the development of neurodegenerative and pathological consequences of epilepsy. We also put forth a summary of the potential intervention with vitamin E therapy in the management of epilepsy.
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Affiliation(s)
- Aman B Upaganlawar
- SNJB's Shriman Sureshdada Jain College of Pharmacy, Neminagar, Chandwad, Nashik, Maharashtra, India
| | - Nitu L Wankhede
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra, India
| | - Mayur B Kale
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra, India
| | - Mohit D Umare
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra, India
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Saurabh Bhatia
- Natural & Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman
| | - Agnieszka Najda
- Department of Vegetable Crops and Medicinal Plants, University of Life Sciences, Lublin, Poland.
| | | | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Romania
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India.
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18
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La Torre ME, Villano I, Monda M, Messina A, Cibelli G, Valenzano A, Pisanelli D, Panaro MA, Tartaglia N, Ambrosi A, Carotenuto M, Monda V, Messina G, Porro C. Role of Vitamin E and the Orexin System in Neuroprotection. Brain Sci 2021; 11:brainsci11081098. [PMID: 34439717 PMCID: PMC8394512 DOI: 10.3390/brainsci11081098] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 12/24/2022] Open
Abstract
Microglia are the first line of defense at the level of the central nervous system (CNS). Phenotypic change in microglia can be regulated by various factors, including the orexin system. Neuroinflammation is an inflammatory process mediated by cytokines, by the lack of interaction between neurotransmitters and their specific receptors, caused by systemic tissue damage or, more often, associated with direct damage to the CNS. Chronic activation of microglia could lead to long-term neurodegenerative diseases. This review aims to explore how tocopherol (vitamin E) and the orexin system may play a role in the prevention and treatment of microglia inflammation and, consequently, in neurodegenerative diseases thanks to its antioxidant properties. The results of animal and in vitro studies provide evidence to support the use of tocopherol for a reduction in microglia inflammation as well as a greater activation of the orexinergic system. Although there is much in vivo and in vitro evidence of vitamin E antioxidant and protective abilities, there are still conflicting results for its use as a treatment for neurodegenerative diseases that speculate that vitamin E, under certain conditions or genetic predispositions, can be pro-oxidant and harmful.
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Affiliation(s)
- Maria Ester La Torre
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (M.E.L.T.); (G.C.); (A.V.); (D.P.); (C.P.)
| | - Ines Villano
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80100 Naples, Italy; (I.V.); (M.M.); (A.M.); (V.M.)
| | - Marcellino Monda
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80100 Naples, Italy; (I.V.); (M.M.); (A.M.); (V.M.)
| | - Antonietta Messina
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80100 Naples, Italy; (I.V.); (M.M.); (A.M.); (V.M.)
| | - Giuseppe Cibelli
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (M.E.L.T.); (G.C.); (A.V.); (D.P.); (C.P.)
| | - Anna Valenzano
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (M.E.L.T.); (G.C.); (A.V.); (D.P.); (C.P.)
| | - Daniela Pisanelli
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (M.E.L.T.); (G.C.); (A.V.); (D.P.); (C.P.)
| | - Maria Antonietta Panaro
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, 70125 Bari, Italy;
| | - Nicola Tartaglia
- Department of Medical and Surgical Sciences, University of Foggia, Viale Pinto, 71122 Foggia, Italy; (N.T.); (A.A.)
| | - Antonio Ambrosi
- Department of Medical and Surgical Sciences, University of Foggia, Viale Pinto, 71122 Foggia, Italy; (N.T.); (A.A.)
| | - Marco Carotenuto
- Clinic of Child and Adolescent Neuropsychiatry, Department of Mental Health, Physical and Preventive Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80100 Naples, Italy;
| | - Vincenzo Monda
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80100 Naples, Italy; (I.V.); (M.M.); (A.M.); (V.M.)
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (M.E.L.T.); (G.C.); (A.V.); (D.P.); (C.P.)
- Correspondence: ; Tel.: +39-8815-88095
| | - Chiara Porro
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (M.E.L.T.); (G.C.); (A.V.); (D.P.); (C.P.)
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19
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Siqueira LD, Celes APM, Santos HD, Ferreira ST. A Specialized Nutritional Formulation Prevents Hippocampal Glial Activation and Memory Impairment Induced by Amyloid-β Oligomers in Mice. J Alzheimers Dis 2021; 83:1113-1124. [PMID: 34397411 DOI: 10.3233/jad-210139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Alzheimer's disease (AD) is the most common cause of dementia in the elderly and is characterized by progressive cognitive decline. Considerable evidence supports an important role of amyloid-β oligomers (AβOs) in the pathogenesis of AD, including the induction of aberrant glial activation and memory impairment. OBJECTIVE We have investigated the protective actions of a nutritional formulation, denoted AZ formulation, on glial activation and memory deficits induced by intracerebroventricular (i.c.v.) infusion of AβOs in mice. METHODS Two-month-old male mice were treated orally with AZ formulation or isocaloric placebo for 30 consecutive days. Microglial and astrocytic activation were analyzed by immunohistochemistry in the hippocampus 10 days after i.c.v. infusion of AβOs (n = 5 mice per experimental condition). Memory loss was assessed by the novel object recognition (NOR) test (n = 6-10 mice per experimental condition). RESULTS Oral treatment with the AZ formulation prevented hippocampal microglial and astrocytic activation induced by i.c.v. infusion of AβOs. The AZ formulation further protected mice from AβO-induced memory impairment. CONCLUSION Results suggest that administration of the AZ formulation may comprise a promising preventative and non-pharmacological strategy to reduce brain inflammation and attenuate memory impairment in AD.
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Affiliation(s)
- Luciana Domett Siqueira
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Sergio T Ferreira
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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20
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Camillo L, Grossini E, Farruggio S, Marotta P, Gironi LC, Zavattaro E, Savoia P. Alpha-Tocopherol Protects Human Dermal Fibroblasts by Modulating Nitric Oxide Release, Mitochondrial Function, Redox Status, and Inflammation. Skin Pharmacol Physiol 2021; 35:1-12. [PMID: 34237733 DOI: 10.1159/000517204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 05/01/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND The altered balance between oxidants/antioxidants and inflammation, changes in nitric oxide (NO) release, and mitochondrial function have a role in skin aging through fibroblast modulation. Tocopherol is promising in counteracting the abovementioned events, but the effective mechanism of action needs to be clarified. OBJECTIVE The aim of this study was to examine the effects of α-tocopherol on cell viability/proliferation, NO release, mitochondrial function, oxidants/antioxidants, and inflammation in human dermal fibroblasts (HDF) subjected to oxidative stress. METHODS HDF were treated with H2O2 in the presence or absence of 1-10 μM α-tocopherol. Cell viability, reactive oxygen species (ROS), NO release, and mitochondrial membrane potential were measured; glutathione (GSH), superoxide dismutase (SOD)-1 and -2, glutathione peroxidase-1 (GPX-1), inducible NO synthase (iNOS), and Ki-67 were evaluated by RT-PCR and immunofluorescence; cell cycle was analyzed using FACS. Pro- and anti-inflammatory cytokine gene expression was analyzed through qRT-PCR. RESULTS α-Tocopherol counteracts H2O2, although it remains unclear whether this effect is dose dependent. Improvement of cell viability, mitochondrial membrane potential, Ki-67 expression, and G0/G1 and G2/M phases of the cell cycle was observed. These effects were accompanied by the increase of GSH content and the reduction of SOD-1 and -2, GPX-1, and ROS release. Also, iNOS expression and NO release were inhibited, and pro-inflammatory cytokine gene expression was decreased, confirming the putative role of α-tocopherol against inflammation. CONCLUSION α-Tocopherol exerts protective effects in HDF which underwent oxidative stress by modulating the redox status, inflammation, iNOS-dependent NO release, and mitochondrial function. These observations have a potential role in the prevention and treatment of photoaging-related skin cancers.
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Affiliation(s)
- Lara Camillo
- Department of Health Science, Dermatologic Unit, University of Eastern Piedmont, Novara, Italy
| | - Elena Grossini
- Laboratory of Physiology, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy
| | - Serena Farruggio
- Laboratory of Physiology, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy
| | - Patrizia Marotta
- Laboratory of Physiology, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy
| | | | - Elisa Zavattaro
- Azienda Ospedaliera Universitaria Maggiore della Carità, Novara, Italy
| | - Paola Savoia
- Department of Health Science, Dermatologic Unit, University of Eastern Piedmont, Novara, Italy
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Zhang L, Sun H, Chen Y, Wei M, Lee J, Li F, Ling D. Functional nanoassemblies for the diagnosis and therapy of Alzheimer's diseases. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 13:e1696. [PMID: 33463089 DOI: 10.1002/wnan.1696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/23/2020] [Accepted: 12/26/2020] [Indexed: 12/19/2022]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease that affects populations around the world. Many therapeutics have been investigated for AD diagnosis and/or therapy, but the efficacy is largely limited by the poor bioavailability of drugs and by the presence of the blood-brain barrier. Recently, the development of nanomedicines enables efficient drug delivery to the brain, but the complex pathological mechanism of AD prevents them from successful treatment. As a type of advanced nanomedicine, multifunctional nanoassemblies self-assembled from nanoscale imaging or therapeutic agents can simultaneously target multiple pathological factors, showing great potential in the diagnosis and therapy of AD. To help readers better understand this emerging field, in this review, we first introduce the pathological mechanisms and the potential drug candidates of AD, as well as the design strategies of nanoassemblies for improving AD targeting efficiency. Moreover, the progress of dynamic nanoassemblies that can diagnose and/or treat AD in response to the endogenous or exogenous stimuli will be described. Finally, we conclude with our perspectives on the future development in this field. The objective of this review is to outline the latest progress of using nanoassemblies to overcome the complex pathological environment of AD for improved diagnosis and therapy, in hopes of accelerating the future development of intelligent AD nanomedicines. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Neurological Disease Diagnostic Tools > in vivo Nanodiagnostics and Imaging.
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Affiliation(s)
- Lingxiao Zhang
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Heng Sun
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Ying Chen
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Min Wei
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jiyoung Lee
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Fangyuan Li
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China
| | - Daishun Ling
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China
- National Center for Translational Medicine, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
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22
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Fakhri S, Pesce M, Patruno A, Moradi SZ, Iranpanah A, Farzaei MH, Sobarzo-Sánchez E. Attenuation of Nrf2/Keap1/ARE in Alzheimer's Disease by Plant Secondary Metabolites: A Mechanistic Review. Molecules 2020; 25:molecules25214926. [PMID: 33114450 PMCID: PMC7663041 DOI: 10.3390/molecules25214926] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/21/2020] [Accepted: 10/21/2020] [Indexed: 12/13/2022] Open
Abstract
Alzheimer’s disease (AD) is a progressive neuronal/cognitional dysfunction, leading to disability and death. Despite advances in revealing the pathophysiological mechanisms behind AD, no effective treatment has yet been provided. It urges the need for finding novel multi-target agents in combating the complex dysregulated mechanisms in AD. Amongst the dysregulated pathophysiological pathways in AD, oxidative stress seems to play a critical role in the pathogenesis progression of AD, with a dominant role of nuclear factor erythroid 2-related factor 2 (Nrf2)/Kelch-like ECH-associated protein-1 (Keap1)/antioxidant responsive elements (ARE) pathway. In the present study, a comprehensive review was conducted using the existing electronic databases, including PubMed, Medline, Web of Science, and Scopus, as well as related articles in the field. Nrf2/Keap1/ARE has shown to be the upstream orchestrate of oxidative pathways, which also ameliorates various inflammatory and apoptotic pathways. So, developing multi-target agents with higher efficacy and lower side effects could pave the road in the prevention/management of AD. The plant kingdom is now a great source of natural secondary metabolites in targeting Nrf2/Keap1/ARE. Among natural entities, phenolic compounds, alkaloids, terpene/terpenoids, carotenoids, sulfur-compounds, as well as some other miscellaneous plant-derived compounds have shown promising future accordingly. Prevailing evidence has shown that activating Nrf2/ARE and downstream antioxidant enzymes, as well as inhibiting Keap1 could play hopeful roles in overcoming AD. The current review highlights the neuroprotective effects of plant secondary metabolites through targeting Nrf2/Keap1/ARE and downstream interconnected mediators in combating AD.
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Affiliation(s)
- Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; (S.F.); (S.Z.M.)
| | - Mirko Pesce
- Department of Medicine and Aging Sciences, University G. d’Annunzio CH-PE, 66100 Chieti, Italy;
| | - Antonia Patruno
- Department of Medicine and Aging Sciences, University G. d’Annunzio CH-PE, 66100 Chieti, Italy;
- Correspondence: (A.P.); (M.H.F.)
| | - Seyed Zachariah Moradi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; (S.F.); (S.Z.M.)
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Amin Iranpanah
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah 6714415153, Iran;
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; (S.F.); (S.Z.M.)
- Correspondence: (A.P.); (M.H.F.)
| | - Eduardo Sobarzo-Sánchez
- Laboratory of Pharmaceutical Chemistry, Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain;
- Instituto de Investigación e Innovación en Salud, Facultad de Ciencias de la Salud, Universidad Central de Chile, Santiago 8330507, Chile
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Chen YY, Wang MC, Wang YN, Hu HH, Liu QQ, Liu HJ, Zhao YY. Redox signaling and Alzheimer's disease: from pathomechanism insights to biomarker discovery and therapy strategy. Biomark Res 2020; 8:42. [PMID: 32944245 PMCID: PMC7488504 DOI: 10.1186/s40364-020-00218-z] [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: 07/06/2020] [Accepted: 08/20/2020] [Indexed: 12/20/2022] Open
Abstract
Abstract Aging and average life expectancy have been increasing at a rapid rate, while there is an exponential risk to suffer from brain-related frailties and neurodegenerative diseases as the population ages. Alzheimer's disease (AD) is the most common neurodegenerative disease worldwide with a projected expectation to blossom into the major challenge in elders and the cases are forecasted to increase about 3-fold in the next 40 years. Considering the etiological factors of AD are too complex to be completely understood, there is almost no effective cure to date, suggesting deeper pathomechanism insights are urgently needed. Metabolites are able to reflect the dynamic processes that are in progress or have happened, and metabolomic may therefore provide a more cost-effective and productive route to disease intervention, especially in the arena for pathomechanism exploration and new biomarker identification. In this review, we primarily focused on how redox signaling was involved in AD-related pathologies and the association between redox signaling and altered metabolic pathways. Moreover, we also expatiated the main redox signaling-associated mechanisms and their cross-talk that may be amenable to mechanism-based therapies. Five natural products with promising efficacy on AD inhibition and the benefit of AD intervention on its complications were highlighted as well. Graphical Abstract
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Affiliation(s)
- Yuan-Yuan Chen
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069 Shaanxi China
| | - Min-Chang Wang
- Instrumental Analysis Center, Xi'an Modern Chemistry Institute, Xi'an, 710065 Shaanxi China
| | - Yan-Ni Wang
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069 Shaanxi China
| | - He-He Hu
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069 Shaanxi China
| | - Qing-Quan Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, 100010 China
| | - Hai-Jing Liu
- Shaanxi Institute for Food and Drug Control, Xi'an, 710065 Shaanxi China
| | - Ying-Yong Zhao
- Faculty of Life Science & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069 Shaanxi China
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de Leeuw FA, Schneider JA, Agrawal S, Leurgans SE, Morris MC. Brain tocopherol levels are associated with lower activated microglia density in elderly human cortex. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2020; 6:e12021. [PMID: 32864412 PMCID: PMC7444784 DOI: 10.1002/trc2.12021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 02/17/2020] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Higher brain tocopherol levels have been associated with lower levels of Alzheimer's disease (AD) neuropathology; however, the underlying mechanisms are unclear. METHODS We studied the relations of α- and γ-tocopherol brain levels to microglia density in 113 deceased participants from the Memory and Aging Project. We used linear regression analyses to examine associations between tocopherol levels and microglia densities in a basic model adjusted for age, sex, education, apolipoprotein E (APOE)ε4 genotype (any ε4 allele vs. none) , and post-mortem time interval, and a second model additionally adjusted for total amyloid load and neurofibrillary tangle severity. RESULTS Higher α- and γ-tocopherol levels were associated with lower total and activated microglia density in cortical but not in subcortical brain regions. The association between cortical α-tocopherol and total microglia density remained statistically significant after adjusting for AD neuropathology. DISCUSSION These results suggest that the relation between tocopherols and AD might be partly explained by the alleviating effects of tocopherols on microglia activation.
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Affiliation(s)
- Francisca A. de Leeuw
- Alzheimer Center AmsterdamDepartment of NeurologyAmsterdam NeuroscienceVrije Universiteit AmsterdamAmsterdam UMCAmsterdamThe Netherlands
| | - Julie A. Schneider
- Rush Alzheimer's Disease CenterDepartment of Neurological Sciences and Department of Pathology (Neuropathology)Rush University Medical CenterChicagoIllinois
| | - Sonal Agrawal
- Rush Alzheimer's Disease CenterDepartment of Pathology (Neuropathology)Rush University Medical CenterChicagoIllinois
| | - Sue E. Leurgans
- Rush Alzheimer's Disease Center and Department of Neurological SciencesRush University Medical CenterChicagoIllinois
| | - Martha Clare Morris
- Rush Institute for Healthy AgingRush University Medical CenterChicagoIllinois
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Lushchekina SV, Masson P. Slow-binding inhibitors of acetylcholinesterase of medical interest. Neuropharmacology 2020; 177:108236. [PMID: 32712274 DOI: 10.1016/j.neuropharm.2020.108236] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 06/11/2020] [Accepted: 07/10/2020] [Indexed: 12/15/2022]
Abstract
Certain ligands slowly bind to acetylcholinesterase. As a result, there is a slow establishment of enzyme-inhibitor equilibrium characterized by a slow onset of inhibition prior reaching steady state. Three mechanisms account for slow-binding inhibition: a) slow binding rate constant kon, b) slow ligand induced-fit following a fast binding step, c) slow conformational selection of an enzyme form. The slow equilibrium may be followed by a chemical step. This later that can be irreversible has been observed with certain alkylating agents and substrate transition state analogs. Slow-binding inhibitors present long residence times on target. This results in prolonged pharmacological or toxicological action. Through several well-known molecules (e.g. huperzine) and new examples (tocopherol, trifluoroacetophenone and a 6-methyluracil alkylammonium derivative), we show that slow-binding inhibitors of acetylcholinesterase are promising drugs for treatment of neurological diseases such as Alzheimer disease and myasthenia gravis. Moreover, they may be of interest for neuroprotection (prophylaxis) against organophosphorus poisoning. This article is part of the special issue entitled 'Acetylcholinesterase Inhibitors: From Bench to Bedside to Battlefield'.
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Affiliation(s)
- Sofya V Lushchekina
- Laboratory of Computer Modeling of Biomolecular Systems and Nanomaterials, Emanuel Institute of Biochemical Physics of RAS, 4 Kosygina St., Moscow, 119334, Russia.
| | - Patrick Masson
- Laboratory of Neuropharmacology, Kazan Federal University, 18 Kremlyovskaya St., Kazan, 420008, Russia.
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26
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Kao YC, Ho PC, Tu YK, Jou IM, Tsai KJ. Lipids and Alzheimer's Disease. Int J Mol Sci 2020; 21:ijms21041505. [PMID: 32098382 PMCID: PMC7073164 DOI: 10.3390/ijms21041505] [Citation(s) in RCA: 243] [Impact Index Per Article: 60.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/14/2020] [Accepted: 02/20/2020] [Indexed: 12/14/2022] Open
Abstract
Lipids, as the basic component of cell membranes, play an important role in human health as well as brain function. The brain is highly enriched in lipids, and disruption of lipid homeostasis is related to neurologic disorders as well as neurodegenerative diseases such as Alzheimer’s disease (AD). Aging is associated with changes in lipid composition. Alterations of fatty acids at the level of lipid rafts and cerebral lipid peroxidation were found in the early stage of AD. Genetic and environmental factors such as apolipoprotein and lipid transporter carrying status and dietary lipid content are associated with AD. Insight into the connection between lipids and AD is crucial to unraveling the metabolic aspects of this puzzling disease. Recent advances in lipid analytical methodology have led us to gain an in-depth understanding on lipids. As a result, lipidomics have becoming a hot topic of investigation in AD, in order to find biomarkers for disease prediction, diagnosis, and prevention, with the ultimate goal of discovering novel therapeutics.
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Affiliation(s)
- Yu-Chia Kao
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan; (Y.-C.K.); (P.-C.H.)
- Department of Pediatrics, E-DA Hospital, Kaohsiung 824, Taiwan
| | - Pei-Chuan Ho
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan; (Y.-C.K.); (P.-C.H.)
| | - Yuan-Kun Tu
- Department of Orthopedics, E-DA Hospital, Kaohsiung 824, Taiwan; (Y.-K.T.); (I.-M.J.)
| | - I-Ming Jou
- Department of Orthopedics, E-DA Hospital, Kaohsiung 824, Taiwan; (Y.-K.T.); (I.-M.J.)
| | - Kuen-Jer Tsai
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan; (Y.-C.K.); (P.-C.H.)
- Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
- Correspondence: ; Tel.: +886-6-235-3535-4254; Fax: +886-6-275-8781
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Moderating effects of crocin on some stress oxidative markers in rat brain following demyelination with ethidium bromide. Heliyon 2019; 5:e01213. [PMID: 30815598 PMCID: PMC6378371 DOI: 10.1016/j.heliyon.2019.e01213] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 12/22/2018] [Accepted: 02/01/2019] [Indexed: 12/27/2022] Open
Abstract
Background The purpose of this study was to investigate the effects of Crocin on oxidative markers (GPx, SOD, MDA) in animal model of demyelination with Ethidium bromide (EB). Methods Female Wistar rats were assigned in to 4 groups; Sham, with no receiving any agent (Sham), Sham Operated group with injection of EB into the brain received no agent (SO), Sham Treatment group with injection of EB and receiving PBS as vehicle and Treatment group with injection of EB and receiving Crocin (100 mg/kg). Demyelination was induced by single dose injection of 10 μl of EB 0.1% into the Cisterna magna of the brain. Crocin was diluted and applied to each animal for 21 days, once per day gavage. The levels of oxidative markers (GPx, SOD and MDA) were measured by related standard kits. Data were analyzed by paired t-test and ANOVA with post hoc test. Results The results showed that crocin decreases the levels of GPx and SOD significantly as well as MDA level after 21 days (α ≤ 0.05). In addition, results showed that there were significant differences in the GPx, SOD and MDA levels between all groups at post treatment phase (α ≤ 0.05). Conclusion It can be concluded that crocin can moderate the level of oxidative markers after demyelination of the brain cells in MS cases. Due to this effect, crocin can be considered as an effective anti-oxidant in management of degenerative nervous system diseases.
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Excitotoxicity, neuroinflammation and oxidant stress as molecular bases of epileptogenesis and epilepsy-derived neurodegeneration: The role of vitamin E. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1098-1112. [PMID: 30703511 DOI: 10.1016/j.bbadis.2019.01.026] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/15/2019] [Accepted: 01/24/2019] [Indexed: 12/14/2022]
Abstract
Glutamate-mediated excitotoxicity, neuroinflammation, and oxidative stress are common underlying events in neurodegeneration. This pathogenic "triad" characterizes the neurobiology of epilepsy, leading to seizure-induced cell death, increased susceptibility to neuronal synchronization and network alterations. Along with other maladaptive changes, these events pave the way to spontaneous recurrent seizures and progressive degeneration of the interested brain areas. In vivo models of epilepsy are available to explore such epileptogenic mechanisms, also assessing the efficacy of chemoprevention and therapy strategies at the pre-clinical level. The kainic acid model of pharmacological excitotoxicity and epileptogenesis is one of the most investigated mimicking the chronicization profile of temporal lobe epilepsy in humans. Its pathogenic cues include inflammatory and neuronal death pathway activation, mitochondrial disturbances and lipid peroxidation of several regions of the brain, the most vulnerable being the hippocampus. The importance of neuroinflammation and lipid peroxidation as underlying molecular events of brain damage was demonstrated in this model by the possibility to counteract the related maladaptive morphological and functional changes of this organ with vitamin E, the main fat-soluble cellular antioxidant and "conditional" co-factor of enzymatic pathways involved in polyunsaturated lipid metabolism and inflammatory signaling. The present review paper provides an overview of the literature supporting the potential for a timely intervention with vitamin E therapy in clinical management of seizures and epileptogenic processes associated with excitotoxicity, neuroinflammation and lipid peroxidation, i.e. the pathogenic "triad".
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Silvin A, Ginhoux F. Microglia heterogeneity along a spatio-temporal axis: More questions than answers. Glia 2018; 66:2045-2057. [PMID: 30144321 DOI: 10.1002/glia.23458] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 05/05/2018] [Accepted: 05/04/2018] [Indexed: 12/29/2022]
Abstract
Microglia are resident macrophages of the central nervous system; they arise during early embryonic development and persist throughout adulthood. These unique cells provide developmental support, contribute to adult brain homeostasis and impart immune protection during infection. Dysregulated microglia are implicated in the pathophysiology of several neurological disorders, including Alzheimer disease, and as such, a better understanding of their regulation and function is required for rational therapeutic design. Recent studies have highlighted the various heterogeneous aspects of microglia, such as their wide differentiation spectrum from early embryogenesis to adulthood, their location in different brain regions and their responses to ageing, infection and inflammation. In this review, we discuss microglial heterogeneity in time and space and highlight the remaining questions arising from such heterogeneity.
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Affiliation(s)
- Aymeric Silvin
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, IMMUNOS Building #3-4, BIOPOLIS, 138648, Singapore
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, IMMUNOS Building #3-4, BIOPOLIS, 138648, Singapore.,Shanghai Institute of Immunology, Shanghai JiaoTong University School of Medicine, 280 South Chongqing Road, Shanghai, 200025, China
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30
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Seo EJ, Fischer N, Efferth T. Phytochemicals as inhibitors of NF-κB for treatment of Alzheimer’s disease. Pharmacol Res 2018; 129:262-273. [DOI: 10.1016/j.phrs.2017.11.030] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/19/2017] [Accepted: 11/23/2017] [Indexed: 12/15/2022]
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Braidy N, Essa MM, Poljak A, Selvaraju S, Al-Adawi S, Manivasagm T, Thenmozhi AJ, Ooi L, Sachdev P, Guillemin GJ. Consumption of pomegranates improves synaptic function in a transgenic mice model of Alzheimer's disease. Oncotarget 2018; 7:64589-64604. [PMID: 27486879 PMCID: PMC5323101 DOI: 10.18632/oncotarget.10905] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 06/17/2016] [Indexed: 01/18/2023] Open
Abstract
Alzheimer's Disease (AD) is a progressive neurodegenerative disorder characterized by extracellular plaques containing abnormal Amyloid Beta (Aβ) aggregates, intracellular neurofibrillary tangles containing hyperphosphorylated tau protein, microglia-dominated neuroinflammation, and impairments in synaptic plasticity underlying cognitive deficits. Therapeutic strategies for the treatment of AD are currently limited. In this study, we investigated the effects of dietary supplementation of 4% pomegranate extract to a standard chow diet on neuroinflammation, and synaptic plasticity in APPsw/Tg2576 mice brain. Treatment with a custom mixed diet (pellets) containing 4% pomegranate for 15 months ameliorated the loss of synaptic structure proteins, namely PSD-95, Munc18-1, and SNAP25, synaptophysin, phosphorylation of Calcium/Calmodulin Dependent Protein Kinase IIα (p-CaMKIIα/ CaMKIIα), and phosphorylation of Cyclic AMP-Response Element Binding Protein (pCREB/CREB), inhibited neuroinflammatory activity, and enhanced autophagy, and activation of the phophoinositide-3-kinase-Akt-mammalian target of rapamycin signaling pathway. These neuroprotective effects were associated with reduced β-site cleavage of Amyloid Precursor Protein in APPsw/Tg2576 mice. Therefore, long-term supplementation with pomegranates can attenuate AD pathology by reducing inflammation, and altering APP-dependent processes.
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Affiliation(s)
- Nady Braidy
- Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Musthafa Mohamed Essa
- Department of Food Science and Nutrition, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al Khoudh, Oman.,Ageing and Dementia Research Group, Sultan Qaboos University, Al Khoudh, Oman
| | - Anne Poljak
- Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia.,College of Medicine and Health Sciences, Sultan Qaboos University, Al Khoudh, Oman
| | - Subash Selvaraju
- Department of Food Science and Nutrition, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al Khoudh, Oman.,Ageing and Dementia Research Group, Sultan Qaboos University, Al Khoudh, Oman
| | - Samir Al-Adawi
- Department of Food Science and Nutrition, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al Khoudh, Oman.,College of Medicine and Health Sciences, Sultan Qaboos University, Al Khoudh, Oman
| | | | | | - Lezanne Ooi
- Illawarra Health and Medical Research Institute, University of Wollongong, NSW, Australia
| | - Perminder Sachdev
- Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia.,Neuropsychiatric Institute, The Prince of Wales Hospital, Sydney, Australia
| | - Gilles J Guillemin
- Neuroinflammation Group, MND and Neurodegenerative Diseases Research Centre, Macquarie University, NSW, Australia
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Gugliandolo A, Bramanti P, Mazzon E. Role of Vitamin E in the Treatment of Alzheimer's Disease: Evidence from Animal Models. Int J Mol Sci 2017; 18:ijms18122504. [PMID: 29168797 PMCID: PMC5751107 DOI: 10.3390/ijms18122504] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/27/2017] [Accepted: 11/20/2017] [Indexed: 02/08/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder representing the major cause of dementia. It is characterized by memory loss, and cognitive and behavioral decline. In particular, the hallmarks of the pathology are amyloid-β (Aβ) plaques and neurofibrillary tangles (NFTs), formed by aggregated hyperphosphorylated tau protein. Oxidative stress plays a main role in AD, and it is involved in initiation and progression of AD. It is well known that Aβ induced oxidative stress, promoting reactive oxygen species (ROS) production and consequently lipid peroxidation, protein oxidation, tau hyperphosphorylation, results in toxic effects on synapses and neurons. In turn, oxidative stress can increase Aβ production. For these reasons, the administration of an antioxidant therapy in AD patients was suggested. The term vitamin E includes different fat-soluble compounds, divided into tocopherols and tocotrienols, that possess antioxidant action. α-Tocopherol is the most studied, but some studies suggested that tocotrienols may have different health promoting capacities. In this review, we focused our attention on the effects of vitamin E supplementation in AD animal models and AD patients or older population. Experimental models showed that vitamin E supplementation, by decreasing oxidative stress, may be a good strategy to improve cognitive and memory deficits. Furthermore, the combination of vitamin E with other antioxidant or anti-inflammatory compounds may increase its efficacy. However, even if some trials have evidenced some benefits, the effects of vitamin E in AD patients are still under debate.
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Affiliation(s)
- Agnese Gugliandolo
- IRCCS Centro Neurolesi "Bonino-Pulejo", Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy.
| | - Placido Bramanti
- IRCCS Centro Neurolesi "Bonino-Pulejo", Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy.
| | - Emanuela Mazzon
- IRCCS Centro Neurolesi "Bonino-Pulejo", Via Provinciale Palermo, Contrada Casazza, 98124 Messina, Italy.
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Neuroprotective effect of berberine against environmental heavy metals-induced neurotoxicity and Alzheimer's-like disease in rats. Food Chem Toxicol 2017; 111:432-444. [PMID: 29170048 DOI: 10.1016/j.fct.2017.11.025] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 11/15/2017] [Accepted: 11/18/2017] [Indexed: 01/20/2023]
Abstract
Heavy metals are reported as neurodegenerative disorders progenitor. They play a role in the precipitation of abnormal β-amyloid protein and hyper-phosphorylated tau, the main hallmarks of Alzheimer's disease (AD). The present study aimed to validate the heavy metals-induced Alzheimer's-like disease in rats as an experimental model of AD and explore the therapeutic effect of berberine via tracking its effect on the oxidative stress-inflammatory pathway. Alzheimer's-like disease was induced in rats orally by a mixture of aluminium, cadmium and fluoride for three months, followed by berberine treatment for another one month. Berberine significantly improved the cognitive behaviors in Morris water maze test and offered a protective effect against heavy metals-induced memory impairment. Docking results showed that berberine inhibited AChE, COX-2 and TACE. Matching with in silico study, berberine downregulated the AChE expression and inhibited its activity in the brain tissues. Also, it normalized the production of TNF- α, IL-12, IL-6 and IL-1β. Moreover, it evoked the production of antioxidant Aβ40 and inhibited the formation of Aβ42, responsible for the aggregations of amyloid-β plaques. Histopathological examination confirmed the neuroprotective effect of berberine. The present data advocate the possible beneficial effect of berberine as therapeutic modality for Alzheimer's disease via its antiinflammatory/antioxidant mechanism.
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Celik E, Sanlier N. Effects of nutrient and bioactive food components on Alzheimer's disease and epigenetic. Crit Rev Food Sci Nutr 2017; 59:102-113. [PMID: 28799782 DOI: 10.1080/10408398.2017.1359488] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Alzheimer's disease (AD) is the most common form of dementia in the elderly and is a chronic neurodegenerative disease that is becoming widespread. For this reason, in recent years factors affecting the development, progression and cognitive function of the AD have been emphasized. Nutrients and other bioactive nutrients are among the factors that are effective in AD. In particular, vitamins A, C and E, vitamins B1, B6 and B12, folate, magnesium, choline, inositol, anthocyanins, isoflavones etc. nutrients and bioactive nutrients are known to be effective in the development of AD. Nutrients and nutrient components may also have an epigenetic effect on AD. At the same time, nutrients and bioactive food components slow down the progression of the disease. For this reason, the effect of nutrients and food components on AD was examined in this review.
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Affiliation(s)
- Elif Celik
- a Gazi University , Faculty of Health Sciences, Nutrition and Dietetics Department , Ankara , Turkey
| | - Nevin Sanlier
- a Gazi University , Faculty of Health Sciences, Nutrition and Dietetics Department , Ankara , Turkey
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The Role of Interleukin-18, Oxidative Stress and Metabolic Syndrome in Alzheimer's Disease. J Clin Med 2017; 6:jcm6050055. [PMID: 28531131 PMCID: PMC5447946 DOI: 10.3390/jcm6050055] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 05/06/2017] [Accepted: 05/18/2017] [Indexed: 12/12/2022] Open
Abstract
The role of interleukins (ILs) and oxidative stress (OS) in precipitating neurodegenerative diseases including sporadic Alzheimer's disease (AD), requires further clarification. In addition to neuropathological hallmarks-extracellular neuritic amyloid-β (Aβ) plaques, neurofibrillary tangles (NFT) containing hyperphosphorylated tau and neuronal loss-chronic inflammation, as well as oxidative and excitotoxic damage, are present in the AD brain. The pathological sequelae and the interaction of these events during the course of AD need further investigation. The brain is particularly sensitive to OS, due to the richness of its peroxidation-sensitive fatty acids, coupled with its high oxygen demand. At the same time, the brain lack robust antioxidant systems. Among the multiple mechanisms and triggers by which OS can accumulate, inflammatory cytokines can sustain oxidative and nitrosative stress, leading eventually to cellular damage. Understanding the consequences of inflammation and OS may clarify the initial events underlying AD, including in interaction with genetic factors. Inflammatory cytokines are potential inducers of aberrant gene expression through transcription factors. Susceptibility disorders for AD, including obesity, type-2 diabetes, cardiovascular diseases and metabolic syndrome have been linked to increases in the proinflammatory cytokine, IL-18, which also regulates multiple AD related proteins. The association of IL-18 with AD and AD-linked medical conditions are reviewed in the article. Such data indicates that an active lifestyle, coupled to a healthy diet can ameliorate inflammation and reduce the risk of sporadic AD.
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Kaur K, Kumar R, Goel S, Uppal S, Bhatia A, Mehta SK. Physiochemical and cytotoxicity study of TPGS stabilized nanoemulsion designed by ultrasonication method. ULTRASONICS SONOCHEMISTRY 2017; 34:173-182. [PMID: 27773233 DOI: 10.1016/j.ultsonch.2016.05.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/21/2016] [Accepted: 05/21/2016] [Indexed: 06/06/2023]
Abstract
The main aim of the present work was to prepare TPGS stabilized D-α-Tocopherol, lemon oil, tween-80, and water nanoemulsion by low cost and highly effective sonication method. The prepared nanoemulsion showed good stability for 60days at variable temperature conditions i.e. 4, 25 and 37°C. The tolerance of the prepared nanoemulsion to salt (50mM-500mM) and pH (pH 2-pH 7.4) was also studied. The morphology and droplet size of pure and quinine loaded nanoemulsion was characterized with transmission electron microscopy. The prepared formulation was transparent and the obtained average particle size ranged between 25nm and 35nm. The nanoemulsion was found to be non toxic. The cell viability study of pure nanoemulsion carried out on Hep G2 cells revealed that the cell viability was 100%. The formulation further exhibited high quinine loading and release capacity with cumulative release up to 76±2% and 65±2% at pH 7.4 and pH 5.5 respectively. The interaction between quinine and vitamins (riboflavin, thiamine and biotin) was also carried out (aqueous medium). The study revealed that riboflavin had strong interaction with quinine and vitamins vis-à-vis thiamine and biotin.
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Affiliation(s)
- Khushwinder Kaur
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India.
| | - Raj Kumar
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India
| | - Sumit Goel
- Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Shivani Uppal
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India
| | - Alka Bhatia
- Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - S K Mehta
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India
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The Impact of Vitamin E and Other Fat-Soluble Vitamins on Alzheimer´s Disease. Int J Mol Sci 2016; 17:ijms17111785. [PMID: 27792188 PMCID: PMC5133786 DOI: 10.3390/ijms17111785] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 10/14/2016] [Accepted: 10/20/2016] [Indexed: 12/25/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common cause of dementia in the elderly population, currently affecting 46 million people worldwide. Histopathologically, the disease is characterized by the occurrence of extracellular amyloid plaques composed of aggregated amyloid-β (Aβ) peptides and intracellular neurofibrillary tangles containing the microtubule-associated protein tau. Aβ peptides are derived from the sequential processing of the amyloid precursor protein (APP) by enzymes called secretases, which are strongly influenced by the lipid environment. Several vitamins have been reported to be reduced in the plasma/serum of AD-affected individuals indicating they have an impact on AD pathogenesis. In this review we focus on vitamin E and the other lipophilic vitamins A, D, and K, and summarize the current knowledge about their status in AD patients, their impact on cognitive functions and AD risk, as well as their influence on the molecular mechanisms of AD. The vitamins might affect the generation and clearance of Aβ both by direct effects and indirectly by altering the cellular lipid homeostasis. Additionally, vitamins A, D, E, and K are reported to influence further mechanisms discussed to be involved in AD pathogenesis, e.g., Aβ-aggregation, Aβ-induced neurotoxicity, oxidative stress, and inflammatory processes, as summarized in this article.
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Wang W, Lu L, Wu QQ, Jia JP. Brain Amyloid-β Plays an Initiating Role in the Pathophysiological Process of the PS1V97L-Tg Mouse Model of Alzheimer’s Disease. J Alzheimers Dis 2016; 52:1089-99. [PMID: 27079718 DOI: 10.3233/jad-160004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Wei Wang
- Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, P.R. China
| | - Lu Lu
- Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, P.R. China
- Center of Alzheimer’s Disease, Beijing Institute for Brain Disorders, Beijing, P.R. China
- Beijing Key Laboratory for Geriatric Cognitive Disorders, Beijing, P.R. China
- Key Neurodegenerative Laboratory of the Ministry of Education of the People’s Republic of China, Beijing, P.R. China
| | - Qiao-qi Wu
- Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, P.R. China
- Center of Alzheimer’s Disease, Beijing Institute for Brain Disorders, Beijing, P.R. China
- Beijing Key Laboratory for Geriatric Cognitive Disorders, Beijing, P.R. China
- Key Neurodegenerative Laboratory of the Ministry of Education of the People’s Republic of China, Beijing, P.R. China
| | - Jian-ping Jia
- Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, P.R. China
- Center of Alzheimer’s Disease, Beijing Institute for Brain Disorders, Beijing, P.R. China
- Beijing Key Laboratory for Geriatric Cognitive Disorders, Beijing, P.R. China
- Key Neurodegenerative Laboratory of the Ministry of Education of the People’s Republic of China, Beijing, P.R. China
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Yang S, Liu W, Lu S, Tian YZ, Wang WY, Ling TJ, Liu RT. A Novel Multifunctional Compound Camellikaempferoside B Decreases Aβ Production, Interferes with Aβ Aggregation, and Prohibits Aβ-Mediated Neurotoxicity and Neuroinflammation. ACS Chem Neurosci 2016; 7:505-18. [PMID: 27015590 DOI: 10.1021/acschemneuro.6b00091] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Accumulating evidence suggested that soluble oligomeric β-amyloid protein (Aβ) exerts diverse roles in neuronal cell death, neuroinflammation, oxidative stress, and the eventual dementia associated with Alzheimer's disease (AD). Developing an agent with multiple properties may be a reasonable strategy for the treatment of AD. In this study, we isolated a novel multifunctional compound named camellikaempferoside B (YCF-2) from Fuzhuan brick tea. YCF-2 consists of kaempferol backbone, p-coumaric acid (p-CA) group, and a novel structure of rhamnopyranosyl group at the C-4' position, possessing the properties of both kaempferol and p-CA. YCF-2 significantly inhibited Aβ production by decreasing β-secretase activity. Moreover, YCF-2 suppressed Aβ42 fibrillation and facilitated nontoxic oligomer formation by binding to Aβ42 oligomers and by blocking the conformational transition to β-sheet. Furthermore, YCF-2 ameliorated Aβ-induced neuronal cell death, ROS production, inflammatory factor release, and microglia activation by blocking the NF-κB signaling pathway in microglia. These findings indicated that YCF-2 with a novel lead structure has potential applications for drug development for AD treatment.
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Affiliation(s)
- Shigao Yang
- National
Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Wen Liu
- National
Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- School
of Life Science, Anhui Agricultural University, Hefei 230036, China
| | - Shuai Lu
- National
Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Yong-zhen Tian
- State
Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University 130 West Changjiang Rd., Hefei 230036, P. R. China
| | - Wei-yun Wang
- School
of Life Science, Anhui Agricultural University, Hefei 230036, China
| | - Tie-jun Ling
- State
Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University 130 West Changjiang Rd., Hefei 230036, P. R. China
| | - Rui-tian Liu
- National
Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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40
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Kwon J, Seo YH, Lee JE, Seo EK, Li S, Guo Y, Hong SB, Park SY, Lee D. Spiroindole Alkaloids and Spiroditerpenoids from Aspergillus duricaulis and Their Potential Neuroprotective Effects. JOURNAL OF NATURAL PRODUCTS 2015; 78:2572-2579. [PMID: 26517152 DOI: 10.1021/acs.jnatprod.5b00508] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Six new spiroindole alkaloids (1-6) and two new spiroditerpenoids (7 and 8) were isolated from an EtOAc extract of Aspergillus duricaulis culture media together with five known compounds. The structures of the isolated compounds were elucidated by analysis of NMR and MS data, and the absolute configurations of compounds 1-8 were confirmed by CD spectroscopic methods. All isolated compounds were evaluated for their inhibition of beta-amyloid (Aβ) aggregate-induced toxicity in PC12 cells and Aβ aggregation. Compounds 8-11 efficiently protected PC12 cells against Aβ aggregate-induced toxicity, but only compound 9 inhibited Aβ aggregation. On the other hand, compounds 4 and 5 exhibited moderate inhibitory effects on Aβ aggregation, but did not protect the cells from Aβ aggregate-induced toxicity. Preincubating Aβ monomers with compounds 4 and 5 rescued PC12 cells against Aβ aggregate-induced toxicity by reducing neurotoxic Aβ aggregates. Compound 9 inhibited both Aβ aggregate-induced toxicity and Aβ aggregation.
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Affiliation(s)
- Jaeyoung Kwon
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University , Seoul 02841, Republic of Korea
| | - Young Hye Seo
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University , Seoul 02841, Republic of Korea
| | - Jae-Eun Lee
- Laboratory of Pharmacognosy, College of Pharmacy, Dankook University , Cheonan 31116, Republic of Korea
| | - Eun-Kyoung Seo
- College of Pharmacy, Ewha Womans University , Seoul 03760, Republic of Korea
| | - Shen Li
- Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University , Tianjin 300071, People's Republic of China
| | - Yuanqiang Guo
- Tianjin Key Laboratory of Molecular Drug Research, College of Pharmacy, Nankai University , Tianjin 300071, People's Republic of China
| | - Seung-Beom Hong
- Korean Agricultural Culture Collection, National Academy of Agricultural Science , Wanju 55365, Republic of Korea
| | - So-Young Park
- Laboratory of Pharmacognosy, College of Pharmacy, Dankook University , Cheonan 31116, Republic of Korea
| | - Dongho Lee
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University , Seoul 02841, Republic of Korea
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