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King TL, Underwood KB, Hansen KK, Kinter MT, Schneider A, Masternak MM, Mason JB. Chronological and reproductive aging-associated changes in resistance to oxidative stress in post-reproductive female mice. GeroScience 2024; 46:1159-1173. [PMID: 37454002 PMCID: PMC10828445 DOI: 10.1007/s11357-023-00865-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 07/01/2023] [Indexed: 07/18/2023] Open
Abstract
Effort toward reproduction is often thought to negatively influence health and survival. Reproduction has been shown to influence metabolism, but the pathways and mechanisms have yet to be thoroughly elucidated. In the current experiments, our aim was to dissect the role of young and old ovarian tissues in the response to oxidative stress, through changes in liver oxidative stress response proteins. Liver proteins were analyzed in control mice at 4, 13, and 27 months of age and compared to 23-month-old mice which received young ovarian tissue transplants (intact or follicle-depleted) at 13 months of age. In control mice, of the 29 oxidative stress response proteins measured, 31% of the proteins decreased, 52% increased, and 17% were unchanged from 13 to 27 months. The greatest changes were seen during the period of reproductive failure, from 4 to 13 months of age. In transplanted mice, far more proteins were decreased from 13 to 23 months (93% in follicle-containing young ovary recipients; 62% in follicle-depleted young ovary recipients). Neither transplant group reflected changes seen in control mice between 13 and 27 months. Estradiol levels in transplant recipient mice were not increased compared with age-matched control mice. The current results suggest the presence of a germ cell- and estradiol-independent ovarian influence on aging-associated changes in the response to oxidative stress, which is manifest differently in reproductive-aged adults and post-reproductive-aged mice. The results presented here separate chronological and ovarian aging and the influence of estradiol in the response to aging-associated oxidative stress and support a novel, estradiol-independent role for the ovary in female health and survival.
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Affiliation(s)
- Tristin L King
- College of Veterinary Medicine, Department of Veterinary Clinical and Life Sciences, Center for Integrated BioSystems, Utah State University, Logan, UT, 84322, USA
| | - Kaden B Underwood
- College of Veterinary Medicine, Department of Veterinary Clinical and Life Sciences, Center for Integrated BioSystems, Utah State University, Logan, UT, 84322, USA
| | - Kindra K Hansen
- College of Veterinary Medicine, Department of Veterinary Clinical and Life Sciences, Center for Integrated BioSystems, Utah State University, Logan, UT, 84322, USA
| | - Michael T Kinter
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Augusto Schneider
- Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas-RS, Brazil
| | - Michal M Masternak
- College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, USA
- Department of Head and Neck Surgery, Poznan University of Medical Sciences, Poznan, Poland
| | - Jeffrey B Mason
- College of Veterinary Medicine, Department of Veterinary Clinical and Life Sciences, Center for Integrated BioSystems, Utah State University, Logan, UT, 84322, USA.
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Lane HY, Wang SH, Lin CH. Differential relationships of NMDAR hypofunction and oxidative stress with cognitive decline. Psychiatry Res 2023; 326:115288. [PMID: 37343463 DOI: 10.1016/j.psychres.2023.115288] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 05/23/2023] [Accepted: 06/06/2023] [Indexed: 06/23/2023]
Abstract
NMDAR hypofunction and oxidative stress are implicated in the pathogenesis of Alzheimer's disease. D-amino acid oxidase (DAO) regulates NMDAR function. Glutathione, superoxide dismutase, and catalase are three first-line endogenous antioxidants. This study explored the associations of these potential biomarkers with mild cognitive impairment. Cognitive function and blood levels of DAO, glutathione, superoxide dismutase, and catalase were measured in 63 mild cognitive impairment patients and 24 healthy individuals every 6 months for 2 years. Among the patients, DAO and glutathione levels at baseline contributed to the cognitive decline 2 years later. Among the healthy individuals, only glutathione levels were associated with cognitive change. The four biomarkers differed in change directions (upward vs. downward) in the patients and in the healthy individuals. Among patients, glutathione levels were negatively correlated with superoxide dismutase and positively correlated with catalase, and DAO levels were negatively correlated with superoxide dismutase. To our knowledge, this is the first study to demonstrate the differential associations of NMDAR hypofunction and oxidative stress with cognitive change between the mild cognitive impairment patients and healthy people. Glutathione may be regarded as an aging marker for both mild cognitive impairment and normal aging; and DAO, a biomarker exclusively for mild cognitive impairment.
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Affiliation(s)
- Hsien-Yuan Lane
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan; Department of Psychiatry & Brain Disease Research Center, China Medical University Hospital, Taichung, Taiwan; Department of Psychology, College of Medical and Health Sciences, Asia University, Taichung, Taiwan
| | - Shi-Heng Wang
- National Center for Geriatrics and Welfare Research, National Health Research Institutes, Yunlin, Taiwan; College of Public Health, China Medical University, Taichung, Taiwan
| | - Chieh-Hsin Lin
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan; Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan.
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La Barbera L, Mauri E, D’Amelio M, Gori M. Functionalization strategies of polymeric nanoparticles for drug delivery in Alzheimer’s disease: Current trends and future perspectives. Front Neurosci 2022; 16:939855. [PMID: 35992936 PMCID: PMC9387393 DOI: 10.3389/fnins.2022.939855] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/11/2022] [Indexed: 12/12/2022] Open
Abstract
Alzheimer’s disease (AD), the most common form of dementia, is a progressive and multifactorial neurodegenerative disorder whose primary causes are mostly unknown. Due to the increase in life expectancy of world population, including developing countries, AD, whose incidence rises dramatically with age, is at the forefront among neurodegenerative diseases. Moreover, a definitive cure is not yet within reach, imposing substantial medical and public health burdens at every latitude. Therefore, the effort to devise novel and effective therapeutic strategies is still of paramount importance. Genetic, functional, structural and biochemical studies all indicate that new and efficacious drug delivery strategies interfere at different levels with various cellular and molecular targets. Over the last few decades, therapeutic development of nanomedicine at preclinical stage has shown to progress at a fast pace, thus paving the way for its potential impact on human health in improving prevention, diagnosis, and treatment of age-related neurodegenerative disorders, including AD. Clinical translation of nano-based therapeutics, despite current limitations, may present important advantages and innovation to be exploited in the neuroscience field as well. In this state-of-the-art review article, we present the most promising applications of polymeric nanoparticle-mediated drug delivery for bypassing the blood-brain barrier of AD preclinical models and boost pharmacological safety and efficacy. In particular, novel strategic chemical functionalization of polymeric nanocarriers that could be successfully employed for treating AD are thoroughly described. Emphasis is also placed on nanotheranostics as both potential therapeutic and diagnostic tool for targeted treatments. Our review highlights the emerging role of nanomedicine in the management of AD, providing the readers with an overview of the nanostrategies currently available to develop future therapeutic applications against this chronic neurodegenerative disease.
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Affiliation(s)
- Livia La Barbera
- Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
- Santa Lucia Foundation, IRCSS, Rome, Italy
| | - Emanuele Mauri
- Department of Engineering, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Marcello D’Amelio
- Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
- Santa Lucia Foundation, IRCSS, Rome, Italy
| | - Manuele Gori
- Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
- Institute of Biochemistry and Cell Biology (IBBC) - National Research Council (CNR), Rome, Italy
- *Correspondence: Manuele Gori,
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Gavrilović L, Popović N, Stojiljković V, Pejić S, Todorović A, Vujović P, Pajović SB. Antioxidant defense system in the prefrontal cortex of chronically stressed rats treated with lithium. PeerJ 2022; 10:e13020. [PMID: 35345589 PMCID: PMC8957266 DOI: 10.7717/peerj.13020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 02/07/2022] [Indexed: 01/11/2023] Open
Abstract
Background This study aimed to investigate the effects of lithium treatment on gene expression and activity of the prefrontal antioxidant enzymes: copper, zinc superoxide dismutase (SOD1), manganes superoxide dismutase (SOD2), catalase (CAT), and glutathione peroxidase (GPx) in animals exposed to chronic restraint stress (CRS). Methods The investigated parameters were quantified using real-time RT-PCR, Western blot analyses, and assays of enzyme activities. Results We found that lithium treatment decreased gene expression of SOD2, as well as the activities of SOD1 and SOD2 in chronically stressed rats to the levels found in unstressed animals. However, lithium treatment in animals exposed to CRS increased prefrontal GPx activity to the levels found in unstressed animals. Conclusions These findings confirm that treatment with lithium induced the modulation of prefrontal antioxidant status in chronically stressed rats. Our results may be very important in biomedical research for understanding the role of lithium in maintaining the stability of prefrontal antioxidant defense system in neuropsychiatric disorders caused by chronic stress.
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Affiliation(s)
- Ljubica Gavrilović
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Nataša Popović
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Vesna Stojiljković
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Snežana Pejić
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Ana Todorović
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Predrag Vujović
- Department for Comparative Physiology and Ecophysiology, Institute for Physiology and Biochemistry, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Snežana B. Pajović
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Walia V, Kaushik D, Mittal V, Kumar K, Verma R, Parashar J, Akter R, Rahman MH, Bhatia S, Al-Harrasi A, Karthika C, Bhattacharya T, Chopra H, Ashraf GM. Delineation of Neuroprotective Effects and Possible Benefits of AntioxidantsTherapy for the Treatment of Alzheimer's Diseases by Targeting Mitochondrial-Derived Reactive Oxygen Species: Bench to Bedside. Mol Neurobiol 2021; 59:657-680. [PMID: 34751889 DOI: 10.1007/s12035-021-02617-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 10/19/2021] [Indexed: 12/25/2022]
Abstract
Alzheimer's disease (AD) is considered the sixth leading cause of death in elderly patients and is characterized by progressive neuronal degeneration and impairment in memory, language, etc. AD is characterized by the deposition of senile plaque, accumulation of fibrils, and neurofibrillary tangles (NFTs) which are responsible for neuronal degeneration. Amyloid-β (Aβ) plays a key role in the process of neuronal degeneration in the case of AD. It has been reported that Aβ is responsible for the production of reactive oxygen species (ROS), depletion of endogenous antioxidants, increase in intracellular Ca2+ which further increases mitochondria dysfunctions, oxidative stress, release of pro-apoptotic factors, neuronal apoptosis, etc. Thus, oxidative stress plays a key role in the pathogenesis of AD. Antioxidants are compounds that have the ability to counteract the oxidative damage conferred by ROS. Therefore, the antioxidant therapy may provide benefits and halt the progress of AD to advance stages by counteracting neuronal degeneration. However, despite the beneficial effects imposed by the antioxidants, the findings from the clinical studies suggested inconsistent results which might be due to poor study design, selection of the wrong antioxidant, inability of the molecule to cross the blood-brain barrier (BBB), treatment in the advanced state of disease, etc. The present review insights into the neuroprotective effects and limitations of the antioxidant therapy for the treatment of AD by targeting mitochondrial-derived ROS. This particular article will certainly help the researchers to search new avenues for the treatment of AD by utilizing mitochondrial-derived ROS-targeted antioxidant therapies.
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Affiliation(s)
- Vaibhav Walia
- SGT College of Pharmacy, SGT University, Gurugram, Haryana, India
| | - Deepak Kaushik
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001, India
| | - Vineet Mittal
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001, India
| | - Kuldeep Kumar
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India
- University Institute of Pharmaceutical Sciences (UIPS), Chandigarh University, Gharuan, Mohali, Punjab, India
| | - Ravinder Verma
- Department of Pharmacy, School of Medical and Allied Sciences, G.D. Goenka University, Gurugram, 122103, India
| | - Jatin Parashar
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001, India
| | - Rokeya Akter
- Department of Pharmacy, Jagannath University, Sadarghat, Dhaka, 1100, Bangladesh
| | - Md Habibur Rahman
- Department of Pharmacy, Southeast University, Banani, Dhaka, 1213, Bangladesh.
| | - Saurabh Bhatia
- School of Health Science University of Petroleum and Energy Studies, Dehrandun, Uttarkhand, 248007, India
- Natural & Medical Sciences Research Center, University of Nizwa, 616 Birkat Al Mouz, P.O. Box 33, Nizwa, Oman
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Center, University of Nizwa, 616 Birkat Al Mouz, P.O. Box 33, Nizwa, Oman
| | - Chenmala Karthika
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, The Nilgiris, Ooty, 643001, Tamil Nadu, India
| | - Tanima Bhattacharya
- College of Chemistry & Chemical Engineering, Hubei University, Wuhan, 430062, China
| | - Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India
| | - Ghulam Md Ashraf
- Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
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IN VITRO STUDIES ON THE PROTECTIVE EFFECT OF TANNIC ACID OF U87 CELLS INDUCED BY BETA-AMYLOID. JOURNAL OF BASIC AND CLINICAL HEALTH SCIENCES 2021. [DOI: 10.30621/jbachs.990503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Polak-Szabela A, Dziembowska I, Bracha M, Pedrycz-Wieczorska A, Kedziora-Kornatowska K, Kozakiewicz M. The Analysis of Oxidative Stress Markers May Increase the Accuracy of the Differential Diagnosis of Alzheimer's Disease with and without Depression. Clin Interv Aging 2021; 16:1105-1117. [PMID: 34163154 PMCID: PMC8215848 DOI: 10.2147/cia.s310750] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/14/2021] [Indexed: 12/25/2022] Open
Abstract
Introduction The aim of work is to assess the usefulness of oxidative stress parameters in the differential diagnosis of dementia of the Alzheimer’s type and dementia of the Alzheimer’s type with coexisting depression. Methods The study involved three groups of people: patients with Alzheimer’s disease (AD) (AD; N=27), patients with Alzheimer’s disease and depression (D) (AD+D; N=30), and a control group that consisted of people without dementia and without depression (C; N=24). The assessment of cognitive functioning was carried out using among alia, Auditory Verbal Learning Test and Verbal Fluency Test. Furthermore, we determined the activity of superoxide dismutase (SOD-1) and superoxide anion radical. Results Multiple models with different combinations of independent variables showed that SOD together with Rey delayed recall were the best significant predictors of AD with the area under curve (AUC) of 0.893 (p = 0.001) and superoxide anion radical (O2•−) together with verbal fluency – sharp objects were the best significant predictors of AD +D diagnosis with the AUC of 0.689 (p = 0.034). Conclusion This study confirmed the value of neuropsychological diagnosis and analysis of oxidative stress markers in the diagnosis of AD and major depressive disorder (MDD) in the course of AD. The combination of the use of biochemical markers and neuropsychological tests seems particularly important for differential diagnosis.
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Affiliation(s)
- Anna Polak-Szabela
- Department of Geriatrics, L. Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Torun, Poland
| | - Inga Dziembowska
- Department of Pathophysiology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Torun, Poland
| | - Marietta Bracha
- Department of Geriatrics, Division of Biochemistry and Biogerontology, L. Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Torun, Poland
| | | | | | - Mariusz Kozakiewicz
- Department of Geriatrics, Division of Biochemistry and Biogerontology, L. Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Torun, Poland
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Hole KL, Williams RJ. Flavonoids as an Intervention for Alzheimer's Disease: Progress and Hurdles Towards Defining a Mechanism of Action. Brain Plast 2021; 6:167-192. [PMID: 33782649 PMCID: PMC7990465 DOI: 10.3233/bpl-200098] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Attempts to develop a disease modifying intervention for Alzheimer's disease (AD) through targeting amyloid β (Aβ) have so far been unsuccessful. There is, therefore, a need for novel therapeutics against alternative targets coupled with approaches which may be suitable for early and sustained use likely required for AD prevention. Numerous in vitro and in vivo studies have shown that flavonoids can act within processes and pathways relevant to AD, such as Aβ and tau pathology, increases in BDNF, inflammation, oxidative stress and neurogenesis. However, the therapeutic development of flavonoids has been hindered by an ongoing lack of clear mechanistic data that fully takes into consideration metabolism and bioavailability of flavonoids in vivo. With a focus on studies that incorporate these considerations into their experimental design, this review will evaluate the evidence for developing specific flavonoids as therapeutics for AD. Given the current lack of success of anti-Aβ targeting therapeutics, particular attention will be given to flavonoid-mediated regulation of tau phosphorylation and aggregation, where there is a comparable lack of study. Reflecting on this evidence, the obstacles that prevent therapeutic development of flavonoids will be examined. Finally, the significance of recent advances in flavonoid metabolomics, modifications and influence of the microbiome on the therapeutic capacity of flavonoids in AD are explored. By highlighting the potential of flavonoids to target multiple aspects of AD pathology, as well as considering the hurdles, this review aims to promote the efficient and effective identification of flavonoid-based approaches that have potential as therapeutic interventions for AD.
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Affiliation(s)
- Katriona L. Hole
- Centre for Regenerative Medicine, Department of Biology and Biochemistry, University of Bath, UK
| | - Robert J. Williams
- Centre for Regenerative Medicine, Department of Biology and Biochemistry, University of Bath, UK
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Bastian P, Dulski J, Roszmann A, Jacewicz D, Kuban-Jankowska A, Slawek J, Wozniak M, Gorska-Ponikowska M. Regulation of Mitochondrial Dynamics in Parkinson's Disease-Is 2-Methoxyestradiol a Missing Piece? Antioxidants (Basel) 2021; 10:248. [PMID: 33562035 PMCID: PMC7915370 DOI: 10.3390/antiox10020248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 12/15/2022] Open
Abstract
Mitochondria, as "power house of the cell", are crucial players in cell pathophysiology. Beyond adenosine triphosphate (ATP) production, they take part in a generation of reactive oxygen species (ROS), regulation of cell signaling and cell death. Dysregulation of mitochondrial dynamics may lead to cancers and neurodegeneration; however, the fusion/fission cycle allows mitochondria to adapt to metabolic needs of the cell. There are multiple data suggesting that disturbed mitochondrial homeostasis can lead to Parkinson's disease (PD) development. 2-methoxyestradiol (2-ME), metabolite of 17β-estradiol (E2) and potential anticancer agent, was demonstrated to inhibit cell growth of hippocampal HT22 cells by means of nitric oxide synthase (NOS) production and oxidative stress at both pharmacologically and also physiologically relevant concentrations. Moreover, 2-ME was suggested to inhibit mitochondrial biogenesis and to be a dynamic regulator. This review is a comprehensive discussion, from both scientific and clinical point of view, about the influence of 2-ME on mitochondria and its plausible role as a modulator of neuron survival.
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Affiliation(s)
- Paulina Bastian
- Department of Medical Chemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland; (P.B.); (A.K.-J.); (M.W.)
| | - Jaroslaw Dulski
- Department of Neurological-Psychiatric Nursing, Medical University of Gdansk, 80-211 Gdansk, Poland; (J.D.); (A.R.); (J.S.)
- Neurology & Stroke Dpt. St. Adalbert Hospital, “Copernicus” Ltd., 80-462 Gdansk, Poland
| | - Anna Roszmann
- Department of Neurological-Psychiatric Nursing, Medical University of Gdansk, 80-211 Gdansk, Poland; (J.D.); (A.R.); (J.S.)
- Neurology & Stroke Dpt. St. Adalbert Hospital, “Copernicus” Ltd., 80-462 Gdansk, Poland
| | - Dagmara Jacewicz
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland;
| | - Alicja Kuban-Jankowska
- Department of Medical Chemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland; (P.B.); (A.K.-J.); (M.W.)
| | - Jaroslaw Slawek
- Department of Neurological-Psychiatric Nursing, Medical University of Gdansk, 80-211 Gdansk, Poland; (J.D.); (A.R.); (J.S.)
- Neurology & Stroke Dpt. St. Adalbert Hospital, “Copernicus” Ltd., 80-462 Gdansk, Poland
| | - Michal Wozniak
- Department of Medical Chemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland; (P.B.); (A.K.-J.); (M.W.)
| | - Magdalena Gorska-Ponikowska
- Department of Medical Chemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland; (P.B.); (A.K.-J.); (M.W.)
- Euro-Mediterranean Institute of Science and Technology, 90139 Palermo, Italy
- Department of Biophysics, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, 70174 Stuttgart, Germany
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Bhatt S, Puli L, Patil CR. Role of reactive oxygen species in the progression of Alzheimer's disease. Drug Discov Today 2020; 26:794-803. [PMID: 33306995 DOI: 10.1016/j.drudis.2020.12.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/19/2020] [Accepted: 12/02/2020] [Indexed: 02/06/2023]
Abstract
The pathogenesis of Alzheimer's disease (AD) involves neurodegeneration following the deposition of β-amyloid (Aβ) plaques and neurofibrillary tangles in vulnerable brain regions. The vulnerability of the brain to reactive oxygen species (ROS) is now emerging as a key detrimental factor driving AD pathogenesis. Oxidative stress (OS) irreversibly damages cellular biomolecules and perturbs neuronal functions. Scientific evidence is emerging that supports the therapeutic effects of antioxidants in preventing the onset and delaying the progression of AD pathology. In this review, we highlight the role of the OS in AD and the importance of antioxidants in its treatment.
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Affiliation(s)
- Shvetank Bhatt
- Amity Institute of Pharmacy, Amity University Madhya Pradesh (AUMP), Gwalior, 474005, Madhya Pradesh, India.
| | - Lakshman Puli
- Dept. of Pharmacology, SVKM's Narsee Monjee Institute of Management Studies Deemed-to-be University, Mahbubnagar, Telangana, 509 301, India
| | - Chandragauda R Patil
- Department of Pharmacology, Delhi Pharmaceutical Sciences and Research University, PushpVihar, Sector-3, New Delhi, 110017, India
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Liu Y, Chen Z, Li B, Yao H, Zarka M, Welch J, Sachdev P, Bridge W, Braidy N. Supplementation with γ-glutamylcysteine (γ-GC) lessens oxidative stress, brain inflammation and amyloid pathology and improves spatial memory in a murine model of AD. Neurochem Int 2020; 144:104931. [PMID: 33276023 DOI: 10.1016/j.neuint.2020.104931] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 11/02/2020] [Accepted: 11/29/2020] [Indexed: 01/18/2023]
Abstract
INTRODUCTION The accumulation of oxidative stress, neuroinflammation and abnormal aggregation of amyloid β-peptide (Aβ) have been shown to induce synaptic dysfunction and memory deficits in Alzheimer's disease (AD). Cellular depletion of the major endogenous antioxidant Glutathione (GSH) has been linked to cognitive decline and the development of AD pathology. Supplementation with γ-glutamylcysteine (γ-GC), the immediate precursor and the limiting substrate for GSH biosynthesis, can transiently augment cellular GSH levels by bypassing the regulation of GSH homeostasis. METHODS In the present study, we investigated the effect of dietary supplementation of γ-GC on oxidative stress and Aβ pathology in the brains of APP/PS1 mice. The APP/PS1 mice were fed γ-GC from 3 months of age with biomarkers of apoptosis and cell death, oxidative stress, neuroinflammation and Aβ load being assessed at 6 months of age. RESULTS Our data showed that supplementation with γ-GC lowered the levels of brain lipid peroxidation, protein carbonyls and apoptosis, increased both total GSH and the glutathione/glutathione disulphide (GSH/GSSG) ratio and replenished ATP and the activities of the antioxidant enzymes (superoxide dismutase (SOD), catalase, glutamine synthetase and glutathione peroxidase (GPX)), the latter being a key regulator of ferroptosis. Brain Aβ load was lower and acetylcholinesterase (AChE) activity was markedly improved compared to APP/PS1 mice fed a standard chow diet. Alteration in brain cytokine levels and matrix metalloproteinase enzymes MMP-2 and MMP-9 suggested that γ-GC may lower inflammation and enhance Aβ plaque clearance in vivo. Spatial memory was also improved by γ-GC as determined using the Morris water maze. CONCLUSION Our data collectively suggested that supplementation with γ-GC may represent a novel strategy for the treatment and/or prevention of cognitive impairment and neurodegeneration.
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Affiliation(s)
- Yue Liu
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia; Guangdong Mental Health Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Zheng Chen
- School of Medicine, Huzhou University, Huzhou Central Hospital Huzhou, China
| | - Ben Li
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Hua Yao
- Institute of Life Sciences and Institute of Neuroscience, Wenzhou University, Wenzhou, China
| | - Martin Zarka
- School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, Australia
| | - Jeffrey Welch
- School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, Australia
| | - Perminder Sachdev
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia; Neuropsychiatric Institute, Euroa Centre, Prince of Wales Hospital, Sydney, Australia
| | - Wallace Bridge
- School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, Australia
| | - Nady Braidy
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia.
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12
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Saeedi M, Rashidy-Pour A. Association between chronic stress and Alzheimer's disease: Therapeutic effects of Saffron. Biomed Pharmacother 2020; 133:110995. [PMID: 33232931 DOI: 10.1016/j.biopha.2020.110995] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/28/2020] [Accepted: 11/01/2020] [Indexed: 12/19/2022] Open
Abstract
Chronic stress and high levels of glucocorticoids produce functional and structural changes in brain and especially in the hippocampus, an important limbic system structure that plays a key role in cognitive functions including learning and memory. Alzheimer's disease (AD) is a chronic neurodegenerative disease that usually starts slowly and worsens over time. Indeed, cognitive dysfunction, neuronal atrophy, and synaptic loss are associated with both AD and chronic stress. Recent preclinical and clinical studies have highlighted a possible link between chronic stress, cognitive decline and the development of AD. It is suggested that Tau protein is an essential mediator of the neurodegenerative effects of stress and glucocorticoids towards the development of AD pathology. Recent findings from animal and humans studies demonstrated that saffron and its main constitutive crocin are effective against chronic stress-induced cognitive dysfunction and oxidative stress and slowed cognitive decline in AD. The inhibitory actions on acetylcholinesterase activity, aggregation of beta-amyloid protein into amyloid plaques and tau protein into neurofibrillary tangles, and also the antioxidant, anti-inflammatory, and the promotion of synaptic plasticity effects are among the possible mechanisms to explain the neuroprotective effects of saffron. New evidences demonstrate that saffron and its main component crocin might be a promising target for cognition improvement in AD and stress-related disorders.
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Affiliation(s)
- Mohammad Saeedi
- Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Rashidy-Pour
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran.
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13
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Bevilaqua F, Sachett A, Chitolina R, Garbinato C, Gasparetto H, Marcon M, Mocelin R, Dallegrave E, Conterato G, Piato A, Siebel AM. A mixture of fipronil and fungicides induces alterations on behavioral and oxidative stress parameters in zebrafish. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:140-147. [PMID: 31865514 DOI: 10.1007/s10646-019-02146-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
Pesticide commercial mixtures, including the insecticide fipronil and the fungicides pyraclostrobin and methyl-thiophanate, have been used in concomitant pest control, facilitating agricultural management. Their widespread use can lead to soil and water contamination and potentially induce damages in the ecosystem, producing toxic effects in non-target organisms. Despite their toxicological potential, their effects on behavioral and biochemical parameters are not well understood. Here we investigated the effects of the mixture of fipronil and fungicides (MFF) pyraclostrobin and methyl- thiophanate on behavioral and biochemical parameters of oxidative stress in adult zebrafish. Animals exposed to the highest MFF tested concentration showed a decrease in the total distance traveled and in the number of crossings in the different zones of the tank. Furthermore, animals exposed to highest MFF tested concentration spent more time in water surface. In addition, our data showed that the exposure to this preparation promoted a decrease in non-protein thiol content as well as in catalase activity. Finally, pesticide exposure induced an increase in the superoxide dismutase/catalase ratio. Our results indicate that alterations in behavioral and oxidative parameters are involved in MFF toxicity in zebrafish. The antioxidant mechanisms analyzed were altered in concentrations that did not affect zebrafish behavior. Therefore, the assessment of oxidative stress parameters in zebrafish brains could be very useful to detect the early effects of environmental exposure to the MFF.
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Affiliation(s)
- Fernanda Bevilaqua
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil
| | - Adrieli Sachett
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Rafael Chitolina
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Cristiane Garbinato
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil
| | - Henrique Gasparetto
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil
| | - Matheus Marcon
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Ricieri Mocelin
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Eliane Dallegrave
- Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Greicy Conterato
- Laboratório de Fisiologia da Reprodução Animal, Departamento de Agricultura, Biodiversidade e Floresta, Universidade Federal de Santa Catarina, Campus de Curitibanos, Curitibanos, SC, Brazil
| | - Angelo Piato
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Anna M Siebel
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil.
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Sandoval K, Umbaugh D, House A, Crider A, Witt K. Somatostatin Receptor Subtype-4 Regulates mRNA Expression of Amyloid-Beta Degrading Enzymes and Microglia Mediators of Phagocytosis in Brains of 3xTg-AD Mice. Neurochem Res 2019; 44:2670-2680. [PMID: 31630317 DOI: 10.1007/s11064-019-02890-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/06/2019] [Accepted: 10/03/2019] [Indexed: 02/06/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder resulting in memory and cognitive impairment. The use of somatostatin receptor subtype-4 (SSTR4) agonists have been proposed for AD treatment. This study investigated the effects of selective SSTR4 agonist NNC 26-9100 on mRNA expression of key genes associated with AD pathology (microglia mediators of Aβ phagocytosis, amyloid-beta (Aβ)-degrading enzymes, anti-oxidant enzymes and pro-inflammatory cytokines) in 3xTg-AD mice. Mice were administered NNC 26-9100 (0.2 µg, i.c.v.) or vehicle control, with cortical and subcortical brain tissue collected at 6 h and 24 h post-treatment. At 6 h, NNC 26-9100 treatment decreased cortical expression of cluster of differentiation-33 (Cd33) by 25%, while increasing cortical and subcortical macrophage scavenger receptor-1 (Msr1) by 1.8 and 2.0-fold, respectively. The Cd33 downregulation and Msr1 upregulation support a state of microglia associated Aβ phagocytosis. At 24 h, NNC 26-9100 treatment increased the cortical expression of Sstr4 (4.9-fold), Aβ-degrading enzymes neprilysin (9.3-fold) and insulin degrading enzyme (14.8-fold), and the antioxidant catalase (3.6-fold). Similar effects at 24 h were found in subcortical tissue with NNC 26-9100 treatment, but did not reach statistical significance. No changes in pro-inflammatory cytokine expression were found. These data demonstrated NNC 26-9100 facilitates transcriptional changes in brain tissue identified with Aβ phagocytosis and clearance, further supporting SSTR4 as a treatment target for AD.
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Affiliation(s)
- Karin Sandoval
- Department of Pharmaceutical Sciences Pharmaceutical Sciences, School of Pharmacy, Southern Illinois University Edwardsville, 200 University Park Drive., Building 220, Edwardsville, IL, 62025, USA
| | - David Umbaugh
- Department of Pharmaceutical Sciences Pharmaceutical Sciences, School of Pharmacy, Southern Illinois University Edwardsville, 200 University Park Drive., Building 220, Edwardsville, IL, 62025, USA
| | - Austin House
- Department of Pharmaceutical Sciences Pharmaceutical Sciences, School of Pharmacy, Southern Illinois University Edwardsville, 200 University Park Drive., Building 220, Edwardsville, IL, 62025, USA
| | - Albert Crider
- Department of Pharmaceutical Sciences Pharmaceutical Sciences, School of Pharmacy, Southern Illinois University Edwardsville, 200 University Park Drive., Building 220, Edwardsville, IL, 62025, USA
| | - Ken Witt
- Department of Pharmaceutical Sciences Pharmaceutical Sciences, School of Pharmacy, Southern Illinois University Edwardsville, 200 University Park Drive., Building 220, Edwardsville, IL, 62025, USA.
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Liu HC, Peng YS, Lee HC. miRDRN-miRNA disease regulatory network: a tool for exploring disease and tissue-specific microRNA regulatory networks. PeerJ 2019; 7:e7309. [PMID: 31404401 PMCID: PMC6688598 DOI: 10.7717/peerj.7309] [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: 04/30/2019] [Accepted: 06/17/2019] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND MicroRNA (miRNA) regulates cellular processes by acting on specific target genes, and cellular processes proceed through multiple interactions often organized into pathways among genes and gene products. Hundreds of miRNAs and their target genes have been identified, as are many miRNA-disease associations. These, together with huge amounts of data on gene annotation, biological pathways, and protein-protein interactions are available in public databases. Here, using such data we built a database and web service platform, miRNA disease regulatory network (miRDRN), for users to construct disease and tissue-specific miRNA-protein regulatory networks, with which they may explore disease related molecular and pathway associations, or find new ones, and possibly discover new modes of drug action. METHODS Data on disease-miRNA association, miRNA-target association and validation, gene-tissue association, gene-tumor association, biological pathways, human protein interaction, gene ID, gene ontology, gene annotation, and product were collected from publicly available databases and integrated. A large set of miRNA target-specific regulatory sub-pathways (RSPs) having the form (T, G 1, G 2) was built from the integrated data and stored, where T is a miRNA-associated target gene, G 1 (G 2) is a gene/protein interacting with T (G 1). Each sequence (T, G 1, G 2) was assigned a p-value weighted by the participation of the three genes in molecular interactions and reaction pathways. RESULTS A web service platform, miRDRN (http://mirdrn.ncu.edu.tw/mirdrn/), was built. The database part of miRDRN currently stores 6,973,875 p-valued RSPs associated with 116 diseases in 78 tissue types built from 207 diseases-associated miRNA regulating 389 genes. miRDRN also provides facilities for the user to construct disease and tissue-specific miRNA regulatory networks from RSPs it stores, and to download and/or visualize parts or all of the product. User may use miRDRN to explore a single disease, or a disease-pair to gain insights on comorbidity. As demonstrations, miRDRN was applied: to explore the single disease colorectal cancer (CRC), in which 26 novel potential CRC target genes were identified; to study the comorbidity of the disease-pair Alzheimer's disease-Type 2 diabetes, in which 18 novel potential comorbid genes were identified; and, to explore possible causes that may shed light on recent failures of late-phase trials of anti-AD, BACE1 inhibitor drugs, in which genes downstream to BACE1 whose suppression may affect signal transduction were identified.
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Affiliation(s)
- Hsueh-Chuan Liu
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan City, Taiwan
| | - Yi-Shian Peng
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan City, Taiwan
| | - Hoong-Chien Lee
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan City, Taiwan
- Department of Physics, Chung Yuan Christian University, Zhongli District, Taoyuan City, Taiwan
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16
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Functions and dysfunctions of nitric oxide in brain. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1949-1967. [DOI: 10.1016/j.bbadis.2018.11.007] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/29/2018] [Accepted: 11/11/2018] [Indexed: 02/06/2023]
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17
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Peroxisomal Hydrogen Peroxide Metabolism and Signaling in Health and Disease. Int J Mol Sci 2019; 20:ijms20153673. [PMID: 31357514 PMCID: PMC6695606 DOI: 10.3390/ijms20153673] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 12/29/2022] Open
Abstract
Hydrogen peroxide (H2O2), a non-radical reactive oxygen species generated during many (patho)physiological conditions, is currently universally recognized as an important mediator of redox-regulated processes. Depending on its spatiotemporal accumulation profile, this molecule may act as a signaling messenger or cause oxidative damage. The focus of this review is to comprehensively evaluate the evidence that peroxisomes, organelles best known for their role in cellular lipid metabolism, also serve as hubs in the H2O2 signaling network. We first briefly introduce the basic concepts of how H2O2 can drive cellular signaling events. Next, we outline the peroxisomal enzyme systems involved in H2O2 metabolism in mammals and reflect on how this oxidant can permeate across the organellar membrane. In addition, we provide an up-to-date overview of molecular targets and biological processes that can be affected by changes in peroxisomal H2O2 metabolism. Where possible, emphasis is placed on the molecular mechanisms and factors involved. From the data presented, it is clear that there are still numerous gaps in our knowledge. Therefore, gaining more insight into how peroxisomes are integrated in the cellular H2O2 signaling network is of key importance to unravel the precise role of peroxisomal H2O2 production and scavenging in normal and pathological conditions.
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Modulation of Hippocampal Antioxidant Defense System in Chronically Stressed Rats by Lithium. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:8745376. [PMID: 30911352 PMCID: PMC6398005 DOI: 10.1155/2019/8745376] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 11/05/2018] [Accepted: 12/02/2018] [Indexed: 01/09/2023]
Abstract
This study examined the effects of lithium on gene expression and activity of the antioxidant enzymes copper zinc superoxide dismutase (SOD1), manganese superoxide dismutase (SOD2), catalase (CAT), glutathione peroxidase (GPx), and glutathione reductase (GR) in the hippocampus of chronically stressed rats. In addition, we examined the effects of lithium on anxiety behaviors, hippocampal concentrations of dopamine (DA) and malondialdehyde (MDA), protein levels of brain-derived neurotrophic factor (BDNF), tyrosine hydroxylase (TH), dopamine transporter (DAT), and catechol-O-methyltransferase (COMT), as well as activity of monoamine oxidase (MAO) in chronically stressed rats. The investigated parameters were quantified by real-time RT-PCR, Western blot analyses, and assays of enzyme activities. We found that lithium did not change gene expression of SOD1, CAT, GPx, and GR but decreased gene expression of SOD2 in chronically stressed rats. A very important result in this study was that lithium treatment decreased the enzyme activities of SOD1 and SOD2 but increased the enzyme activities of GPx and GR in stress condition, which indicates the control of redox balance. The reduced concentration of MDA confirms this. In addition, we found that lithium treatment decreased high protein levels of BDNF and DAT in chronically stressed rats to the level found in unstressed animals. Also, lithium treatment increased the expression of TH but decreased the enzyme activity of MAO B, which contributed to the increase of hippocampal concentration of DA in chronically stressed rats to the level of unstressed animals. Finally, lithium treatment in animals exposed to chronic stress increased the time spent in open arms. Lithium-induced modulation of hippocampal antioxidant status and attenuation of oxidative stress stabilized behavior in animals with high anxiety index. In addition, reduced oxidative stress was followed by the changes of both turnover of DA and levels of BDNF protein in chronically stressed rats treated with lithium. These findings may be important in preclinical research of the effects of lithium on oxidative stress level in pathological conditions.
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19
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Influence of Acetylcholinesterase Inhibitors Used in Alzheimer's Disease Treatment on the Activity of Antioxidant Enzymes and the Concentration of Glutathione in THP-1 Macrophages under Fluoride-Induced Oxidative Stress. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 16:ijerph16010010. [PMID: 30577562 PMCID: PMC6339019 DOI: 10.3390/ijerph16010010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/09/2018] [Accepted: 12/17/2018] [Indexed: 01/03/2023]
Abstract
It has been reported that donepezil and rivastigmine, the acetylcholinesterase (AchE) inhibitors commonly used in the treatment of Alzheimer’s disease (AD), do not only inhibit AChE but also have antioxidant properties. As oxidative stress is involved in AD pathogenesis, in our study we attempted to examine the influence of donepezil and rivastigmine on the activity of antioxidant enzymes and glutathione concentration in macrophages—an important source of reactive oxygen species and crucial for oxidative stress progression. The macrophages were exposed to sodium fluoride induced oxidative stress. The antioxidant enzymes activity and concentration of glutathione were measured spectrophotometrically. The generation of reactive oxygen species was visualized by confocal microscopy. The results of our study showed that donepezil and rivastigmine had a stimulating effect on catalase activity. However, when exposed to fluoride-induced oxidative stress, the drugs reduced the activity of some antioxidant enzymes (Cat, SOD, GR). These observations suggest that the fluoride-induced oxidative stress may suppress the antioxidant action of AChE inhibitors. Our results may have significance in the clinical practice of treatment of AD and other dementia diseases.
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20
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Kantar Gok D, Hidisoglu E, Ocak GA, Er H, Acun AD, Yargıcoglu P. Protective role of rosmarinic acid on amyloid beta 42-induced echoic memory decline: Implication of oxidative stress and cholinergic impairment. Neurochem Int 2018; 118:1-13. [PMID: 29655652 DOI: 10.1016/j.neuint.2018.04.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/23/2018] [Accepted: 04/12/2018] [Indexed: 12/21/2022]
Abstract
In the present study, we examined whether rosmarinic acid (RA) reverses amyloid β (Aβ) induced reductions in antioxidant defense, lipid peroxidation, cholinergic damage as well as the central auditory deficits. For this purpose, Wistar rats were randomly divided into four groups; Sham(S), Sham + RA (SR), Aβ42 peptide (Aβ) and Aβ42 peptide + RA (AβR) groups. Rat model of Alzheimer was established by bilateral injection of Aβ42 peptide (2,2 nmol/10 μl) into the lateral ventricles. RA (50 mg/kg, daily) was administered orally by gavage for 14 days after intracerebroventricular injection. At the end of the experimental period, we recorded the auditory event related potentials (AERPs) and mismatch negativity (MMN) response to assess auditory functions followed by histological and biochemical analysis. Aβ42 injection led to a significant increase in the levels of thiobarbituric acid reactive substances (TBARS) and 4-Hydroxy-2-nonenal (4-HNE) but decreased the activity of antioxidant enzymes (SOD, CAT, GSH-Px) and glutathione levels. Moreover, Aβ42 injection resulted in a reduction in the acetylcholine content and acetylcholine esterase activity. RA treatment prevented the observed alterations in the AβR group. Furthermore, RA attenuated the increased Aβ staining and astrocyte activation. We also found that Aβ42 injection decreased the MMN response and theta power/coherence of AERPs, suggesting an impairing effect on auditory discrimination and echoic memory processes. RA treatment reversed the Aβ42 related alterations in AERP parameters. In conclusion, our study demonstrates that RA prevented Aβ-induced antioxidant-oxidant imbalance and cholinergic damage, which may contribute to the improvement of neural network dynamics of auditory processes in this rat model.
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Affiliation(s)
- Deniz Kantar Gok
- Department of Biophysics, Faculty of Medicine, Akdeniz University, Arapsuyu, 07070 Antalya, Turkey
| | - Enis Hidisoglu
- Department of Biophysics, Faculty of Medicine, Akdeniz University, Arapsuyu, 07070 Antalya, Turkey
| | - Guzide Ayse Ocak
- Department of Pathology, Faculty of Medicine, Akdeniz University, Arapsuyu, 07070 Antalya, Turkey
| | - Hakan Er
- Department of Biophysics, Faculty of Medicine, Akdeniz University, Arapsuyu, 07070 Antalya, Turkey
| | - Alev Duygu Acun
- Department of Biophysics, Faculty of Medicine, Akdeniz University, Arapsuyu, 07070 Antalya, Turkey
| | - Piraye Yargıcoglu
- Department of Biophysics, Faculty of Medicine, Akdeniz University, Arapsuyu, 07070 Antalya, Turkey.
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Youssef P, Chami B, Lim J, Middleton T, Sutherland GT, Witting PK. Evidence supporting oxidative stress in a moderately affected area of the brain in Alzheimer's disease. Sci Rep 2018; 8:11553. [PMID: 30068908 PMCID: PMC6070512 DOI: 10.1038/s41598-018-29770-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/18/2018] [Indexed: 01/15/2023] Open
Abstract
The pathogenesis of Alzheimer's disease (AD) remains to be elucidated. Oxidative damage and excessive beta-amyloid oligomers are components of disease progression but it is unclear how these factors are temporally related. At post mortem, the superior temporal gyrus (STG) of AD cases contains plaques, but displays few tangles and only moderate neuronal loss. The STG at post mortem may represent a brain region that is in the early stages of AD or alternately a region resistant to AD pathogenesis. We evaluated expression profiles and activity of endogenous anti-oxidants, oxidative damage and caspase activity in the STG of apolipoprotein ε4-matched human AD cases and controls. Total superoxide dismutase (SOD) activity was increased, whereas total glutathione peroxidase (GPX), catalase (CAT) and peroxiredoxin (Prx) activities, were decreased in the AD-STG, suggesting that hydrogen peroxide accumulates in this brain region. Transcripts of the transcription factor NFE2L2 and inducible HMOX1, were also increased in the AD-STG, and this corresponded to increased Nuclear factor erythroid 2-related factor (NRF-2) and total heme-oxygenase (HO) activity. The protein oxidation marker 4-hydroxynonenal (4-HNE), remained unchanged in the AD-STG. Similarly, caspase activity was unaltered, suggesting that subtle redox imbalances in early to moderate stages of AD do not impact STG viability.
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Affiliation(s)
- Priscilla Youssef
- Redox Biology Group, Discipline of Pathology, University of Sydney, Sydney, NSW, 2006, Australia
| | - Belal Chami
- Redox Biology Group, Discipline of Pathology, University of Sydney, Sydney, NSW, 2006, Australia
| | - Julia Lim
- Neuropathology Group, Discipline of Pathology, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Terry Middleton
- Neuropathology Group, Discipline of Pathology, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Greg T Sutherland
- Neuropathology Group, Discipline of Pathology, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Paul K Witting
- Redox Biology Group, Discipline of Pathology, University of Sydney, Sydney, NSW, 2006, Australia.
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22
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Stem Cells as Potential Targets of Polyphenols in Multiple Sclerosis and Alzheimer's Disease. BIOMED RESEARCH INTERNATIONAL 2018; 2018:1483791. [PMID: 30112360 PMCID: PMC6077677 DOI: 10.1155/2018/1483791] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 06/19/2018] [Indexed: 12/16/2022]
Abstract
Alzheimer's disease (AD) and multiple sclerosis are major neurodegenerative diseases, which are characterized by the accumulation of abnormal pathogenic proteins due to oxidative stress, mitochondrial dysfunction, impaired autophagy, and pathogens, leading to neurodegeneration and behavioral deficits. Herein, we reviewed the utility of plant polyphenols in regulating proliferation and differentiation of stem cells for inducing brain self-repair in AD and multiple sclerosis. Firstly, we discussed the genetic, physiological, and environmental factors involved in the pathophysiology of both the disorders. Next, we reviewed various stem cell therapies available and how they have proved useful in animal models of AD and multiple sclerosis. Lastly, we discussed how polyphenols utilize the potential of stem cells, either complementing their therapeutic effects or stimulating endogenous and exogenous neurogenesis, against these diseases. We suggest that polyphenols could be a potential candidate for stem cell therapy against neurodegenerative disorders.
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23
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Siddique YH, Ali F. Protective effect of nordihydroguaiaretic acid (NDGA) on the transgenic Drosophila model of Alzheimer's disease. Chem Biol Interact 2017; 269:59-66. [DOI: 10.1016/j.cbi.2017.04.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 03/26/2017] [Accepted: 04/05/2017] [Indexed: 01/07/2023]
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24
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Cornelius N, Wardman JH, Hargreaves IP, Neergheen V, Bie AS, Tümer Z, Nielsen JE, Nielsen TT. Evidence of oxidative stress and mitochondrial dysfunction in spinocerebellar ataxia type 2 (SCA2) patient fibroblasts: Effect of coenzyme Q10 supplementation on these parameters. Mitochondrion 2017; 34:103-114. [PMID: 28263872 DOI: 10.1016/j.mito.2017.03.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 02/11/2017] [Accepted: 03/01/2017] [Indexed: 02/05/2023]
Abstract
Spinocerebellar ataxia type 2 (SCA2) is a rare neurodegenerative disorder caused by a CAG repeat expansion in the ataxin-2 gene. We show increased oxidative stress, abnormalities in the antioxidant system, changes in complexes involved in oxidative phosphorylation and changes in mitochondrial morphology in SCA2 patient fibroblasts compared to controls, and we show that treatment with CoQ10 can partially reverse these changes. Together, our results suggest that oxidative stress and mitochondrial dysfunction may be contributory factors to the pathophysiology of SCA2 and that therapeutic strategies involving manipulation of the antioxidant system could prove to be of clinical benefit.
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Affiliation(s)
- Nanna Cornelius
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark
| | - Jonathan H Wardman
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark
| | - Iain P Hargreaves
- Pharmacy and Biomolecular Sciences, James Parsons Building, John Moore's University, Liverpool L3 3AF, United Kingdom
| | - Viruna Neergheen
- Neurometabolic Unit, National Hospital for Neurology and Neurosurgery, Queen Square, London, United Kingdom
| | - Anne Sigaard Bie
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark
| | - Zeynep Tümer
- Applied Human Molecular Genetics, Kennedy Center, Department of Clinical Genetics, Rigshospitalet, Glostrup, University of Copenhagen, Denmark
| | - Jørgen E Nielsen
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark; Danish Dementia Research Centre, Neurogenetics Clinic, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark; Section of Neurogenetics, Department of Cellular and Molecular Medicine, The Panum Institute, University of Copenhagen, Denmark.
| | - Troels T Nielsen
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark
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25
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Abstract
Previous biochemical and morphological studies with animal experiments have demonstrated that caffeine given topically or orally to certain experimental animal models has significant inhibitory effect on cataract formation. The present studies were undertaken to examine if there is a correlation between coffee drinking and incidence of cataract blindness in human beings. That has been found to be the case. Incidence of cataract blindness was found to be significantly lower in groups consuming higher amounts of coffee in comparison to the groups with lower coffee intake. Mechanistically, the caffeine effect could be multifactorial, involving its antioxidant as well as its bioenergetic effects on the lens.
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Affiliation(s)
- Shambhu D Varma
- Department of Ophthalmology and Visual Sciences, Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD, USA
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Monteiro-Cardoso VF, Castro M, Oliveira MM, Moreira PI, Peixoto F, Videira RA. Age-dependent biochemical dysfunction in skeletal muscle of triple-transgenic mouse model of Alzheimer`s disease. Curr Alzheimer Res 2015; 12:100-15. [PMID: 25654504 PMCID: PMC4428479 DOI: 10.2174/1567205012666150204124852] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 09/21/2014] [Accepted: 10/09/2014] [Indexed: 12/25/2022]
Abstract
The emergence of Alzheimer`s disease as a systemic pathology shifted the research paradigm toward a better
understanding of the molecular basis of the disease considering the pathophysiological changes in both brain and peripheral
tissues. In the present study, we evaluated the impact of disease progression on physiological relevant features of
skeletal muscle obtained from 3, 6 and 12 month-old 3xTg-AD mice, a model of Alzheimer`s disease, and respective agematched
nonTg mice. Our results showed that skeletal muscle functionality is already affected in 3-month-old 3xTg-AD
mice as evidenced by deficient acetylcholinesterase and catalase activities as well as by alterations in fatty acid composition
of mitochondrial membranes. Additionally, an age-dependent accumulation of amyloid-β1-40 peptide occurred in
skeletal muscle of 3xTg-AD mice, an effect that preceded bioenergetics mitochondrial dysfunction, which was only detected
at 12 months of age, characterized by decreased respiratory control ratio and ADP/O index and by an impairment of
complex I activity. HPLC-MS/MS analyses revealed significant changes in phospholipid composition of skeletal muscle
tissues from 3xTg-AD mice with 12 months of age when compared with age-matched nonTg mice. Increased levels of
lyso-phosphatidylcholine associated with a decrease of phosphatidylcholine molecular species containing arachidonic acid
were detected in 3xTg-AD mice, indicating an enhancement of phospholipase A2 activity and skeletal muscle inflammation.
Additionally, a decrease of phosphatidylethanolamine plasmalogens content and an increase in phosphatidylinositol
levels was observed in 3xTg-AD mice when compared with age-matched nonTg mice. Altogether, these observations
suggest that the skeletal muscle of 3xTg-AD mice are more prone to oxidative and inflammatory events.
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Affiliation(s)
| | | | | | | | | | - Romeu A Videira
- Chemistry Center - Vila Real (CQ-VR), Chemistry Department, School of Life and Environmental Sciences, University of Tras-os-Montes e Alto Douro, UTAD, P.O. Box 1013; 5001-801 Vila Real, Portugal.
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Lazzara CA, Kim YH. Potential application of lithium in Parkinson's and other neurodegenerative diseases. Front Neurosci 2015; 9:403. [PMID: 26578864 PMCID: PMC4621308 DOI: 10.3389/fnins.2015.00403] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 10/12/2015] [Indexed: 12/12/2022] Open
Abstract
Lithium, the long-standing hallmark treatment for bipolar disorder, has recently been identified as a potential neuroprotective agent in neurodegeneration. Here we focus on introducing numerous in vitro and in vivo studies that have shown lithium treatment to be efficacious in reducing oxidative stress and inflammation, increasing autophagy, inhibiting apoptosis, and decreasing the accumulation of α-synulcein, with an emphasis on Parkinson's disease. A number of biological pathways have been shown to be involved in causing these neuroprotective effects. The inhibition of GSK-3β has been the mechanism most studied; however, other modes of action include the regulation of apoptotic proteins and glutamate excitotoxicity as well as down-regulation of calpain. This review provides a framework of the neuroprotective effects of lithium in neurodegenerative diseases and the putative mechanisms by which lithium provides the protection. Lithium-only treatment may not be a suitable therapeutic option for neurodegenerative diseases due to inconsistent efficacy and potential side-effects, however, the use of low dose lithium in combination with other potential or existing therapeutic compounds may be a promising approach to reduce symptoms and disease progression in neurodegenerative diseases.
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Affiliation(s)
- Carol A Lazzara
- Department of Biological Sciences, Delaware State University Dover, DE, USA
| | - Yong-Hwan Kim
- Department of Biological Sciences, Delaware State University Dover, DE, USA
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Ferreira MES, de Vasconcelos AS, da Costa Vilhena T, da Silva TL, da Silva Barbosa A, Gomes ARQ, Dolabela MF, Percário S. Oxidative Stress in Alzheimer's Disease: Should We Keep Trying Antioxidant Therapies? Cell Mol Neurobiol 2015; 35:595-614. [PMID: 25616523 DOI: 10.1007/s10571-015-0157-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 01/13/2015] [Indexed: 11/28/2022]
Abstract
The risk of chronic diseases such as Alzheimer's disease is growing as a result of the continuous increasing average life span of the world population, a syndrome characterized by the presence of intraneural neurofibrillary tangles and senile plaques composed mainly by beta-amyloid protein, changes that may cause a number of progressive disorders in the elderly, causing, in its most advanced stage, difficulty in performing normal daily activities, among other manifestations. Therefore, it is important to understand the underlying pathogenic mechanisms of this syndrome. Nevertheless, despite intensive effort to access the physiopathological pathways of the disease, it remains poorly understood. In that context, some hypotheses have arisen, including the recent oxidative stress hypothesis, theory supported by the involvement of oxidative stress in aging, and the vulnerability of neurons to oxidative attack. In the present revision, oxidative changes and redox mechanisms in Alzheimer's disease will be further stressed, as well as the grounds for antioxidant supplementation as adjuvant therapy for the disease will be addressed.
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Affiliation(s)
- Michelli Erica Souza Ferreira
- Oxidative Stress Research Lab, Institute of Biological Sciences (LAPEO - ICB), Federal University of Pará, Av. Augusto Correa, 01, Belém, PA, 66075-110, Brazil
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Gromadzka G, Kruszyńska M, Wierzbicka D, Litwin T, Dzieżyc K, Wierzchowska-Ciok A, Chabik G, Członkowska A. Gene variants encoding proteins involved in antioxidant defense system and the clinical expression of Wilson disease. Liver Int 2015; 35:215-22. [PMID: 24517502 DOI: 10.1111/liv.12493] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 02/04/2014] [Indexed: 12/25/2022]
Abstract
BACKGROUND & AIMS Wilson disease (WD) is an autosomal recessive disorder of copper metabolism resulting from pathogenic mutations of the ATP7B gene. The basis of phenotypic variability of the disease is not understood. The main mechanism of copper toxicity is probably related to generation of intracellular oxidative stress. To evaluate whether interindividual variability within genes encoding proteins involved in antioxidant defense system may modulate phenotypic expressions of WD. METHODS Variability within genes encoding the cytosolic enzymes: glutathione peroxidase (GPX1 rs1050450) and manganese superoxide dismutase (SOD2 rs4880), and peroxisomal enzyme: catalase (CAT rs1001179) were analysed in 435 patients. Individual genotypes were tested for their relationship with phenotypic features of WD. RESULTS GPX1 genotypes were not related to phenotypic manifestations of WD. Among males homozygocity for the SOD2 rs4880 T allele was related to earlier onset of WD. Patients homozygous for the CAT rs1001179 T allele characterized with later onset of WD [median (interquartile range) age: 29.0 (14.0) years vs. 22.0 (12.0) years, respectively, P < 0.004], later manifestation of hepatic symptoms [34.5 (14.0) years vs. 22.0 (12.0) years, P < 0.0009], and later presentation of neurological symptoms [37.0 (16.0) years vs. 28.0 (13.0) years, P < 0.03] than those having one or two C alleles. CONCLUSION Variability within the CAT gene may be an important modifier of the clinical course of WD. SOD2 genotype may influence WD phenotype among males. These observations indirectly confirm a role of oxidative stress in the pathogenesis of WD, as well as indirectly suggest that peroxisomes impairment may be involved in WD pathophysiology.
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Affiliation(s)
- Grażyna Gromadzka
- Second Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland
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30
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Brain catalase in the streptozotocin-rat model of sporadic Alzheimer's disease treated with the iron chelator-monoamine oxidase inhibitor, M30. J Neural Transm (Vienna) 2014; 122:559-64. [PMID: 25252744 DOI: 10.1007/s00702-014-1307-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 09/01/2014] [Indexed: 12/12/2022]
Abstract
Low intracerebroventricular (icv) doses of streptozotocin (STZ) produce regionally specific brain neurochemical changes in rats that are similar to those found in the brain of patients with sporadic Alzheimer's disease (sAD). Since oxidative stress is thought to be one of the major pathologic processes in sAD, catalase (CAT) activity was estimated in the regional brain tissue of animals treated intracerebroventricularly with STZ and the multitarget iron chelator, antioxidant and MAO-inhibitor M30 [5-(N-methyl-N-propargylaminomethyl)-8-hydroxyquinoline]. Five-day oral pre-treatment of adult male Wistar rats with 10 mg/kg/day M30 dose was followed by a single injection of STZ (1 mg/kg, icv). CAT activity was measured colorimetrically in the hippocampus (HPC), brain stem (BS) and cerebellum (CB) of the control, STZ-, M30- and STZ + M30-treated rats, respectively, 4 weeks after the STZ treatment. STZ-treated rats demonstrated significantly lower CAT activity in all three brain regions in comparison to the controls (p < 0.05 for BS and CB, p < 0.01 for HPC). M30 pre-treatment of the control rats did not influence the CAT activity in HPC and CB, but significantly increased it in BS (p < 0.05). M30 pre-treatment of STZ-treated rats significantly increased CAT activity in the HPC in comparison to the STZ treatment alone (p < 0.05) and normalized to the control values. These findings are in line with the assumption that reactive oxygen species contribute to the pathogenesis of STZ in a rat model of sAD and indicate that multifunctional iron chelators such as M30 might also have beneficial effects in this non-transgenic sAD model.
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de Sousa RT, Zarate CA, Zanetti MV, Costa AC, Talib LL, Gattaz WF, Machado-Vieira R. Oxidative stress in early stage Bipolar Disorder and the association with response to lithium. J Psychiatr Res 2014; 50:36-41. [PMID: 24332923 PMCID: PMC4052827 DOI: 10.1016/j.jpsychires.2013.11.011] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 11/08/2013] [Accepted: 11/26/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Several studies have described increased oxidative stress (OxS) parameters and imbalance of antioxidant enzymes in Bipolar Disorder (BD) but few is know about the impact of treatment at these targets. However, no study has evaluated OxS parameters in unmedicated early stage BD and their association with lithium treatment in bipolar depression. METHODS Patients with BD I or II (n = 29) in a depressive episode were treated for 6 weeks with lithium. Plasma samples were collected at baseline and endpoint, and were also compared to age-matched controls (n = 28). The thiobarbituric acid reactive substances (TBARS), and the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activities were measured. RESULTS Subjects with BD depression at baseline presented a significant increase in CAT (p = 0.005) and GPx (p < 0.001) levels, with lower SOD/CAT ratio (p = 0.001) and no changes on SOD or TBARS compared to healthy controls. Regarding therapeutics, lithium only induced a decrease in TBARS (p = 0.023) and SOD (p = 0.029) levels, especially in BDII. Finally, TBARS levels were significantly lower at endpoint in lithium responders compared to non-responders (p = 0.018) with no difference in any biomarker regarding remission. CONCLUSION The present findings suggest a reactive increase in antioxidant enzymes levels during depressive episodes in early stage BD with minimal prior treatment. Also, decreased lipid peroxidation (TBARS) levels were observed, associated with lithium's clinical efficacy. Overall, these results reinforce the role for altered oxidative stress in the pathophysiology of BD and the presence of antioxidant effects of lithium in the prevention of illness progression and clinical efficacy.
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Affiliation(s)
- Rafael T. de Sousa
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, Brazil
| | - Carlos A. Zarate
- Experimental Therapeutics and Pathophysiology Branch (ETPB), National Institute of Mental Health, NIH, Bethesda, MD, USA
| | - Marcus V. Zanetti
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, Brazil
,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, Brazil
| | - Alana C. Costa
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, Brazil
| | - Leda L. Talib
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, Brazil
| | - Wagner F. Gattaz
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, Brazil
,Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, Brazil
| | - Rodrigo Machado-Vieira
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, Brazil; Experimental Therapeutics and Pathophysiology Branch (ETPB), National Institute of Mental Health, NIH, Bethesda, MD, USA; Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, Brazil.
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32
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Erukainure OL, Ebuehi OA, Choudhary IM, Adhikari A, Hafizur RM, Perveen S, Muhammad A, Elemo GN. Iridoid Glycoside from the Leaves ofClerodendrum volubileBeauv. Shows Potent Antioxidant Activity Against Oxidative Stress in Rat Brain and Hepatic Tissues. J Diet Suppl 2014; 11:19-29. [DOI: 10.3109/19390211.2013.859213] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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33
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Youdim MBH. Multi target neuroprotective and neurorestorative anti-Parkinson and anti-Alzheimer drugs ladostigil and m30 derived from rasagiline. Exp Neurobiol 2013; 22:1-10. [PMID: 23585716 PMCID: PMC3620452 DOI: 10.5607/en.2013.22.1.1] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 03/04/2013] [Accepted: 03/04/2013] [Indexed: 11/28/2022] Open
Abstract
Present anti-PD and -AD drugs have limited symptomatic activity and devoid of neuroprotective and neurorestorative property that is needed for disease modifying action. The complex pathology of PD and AD led us to develop several multi-target neuroprotective and neurorestorative drugs with several CNS targets with the ability for possible disease modifying activity. Employing the pharmacophore of our anti-parkinson drug rasagiline (Azilect, N-propagrgyl-1-R-aminoindan), we have developed a series of novel multi-functional neuroprotective drugs (A) [TV-3326 (N-propargyl-3R-aminoindan-5yl)-ethyl methylcarbamate)], with both cholinesterase-butyrylesterase and brain selective monoamine-oxidase (MAO) A/B inhibitory activities and (B) the iron chelator-radical scavenging-brain selective monoamine oxidase (MAO) A/B inhibitor and M30 possessing the neuroprotective and neurorescuing propargyl moiety of rasagiline, as potential treatment of AD, DLB and PD with dementia. Another series of multi-target drugs (M30, HLA-20 series) which are brain permeable iron chelators and potent selective brain MAO inhibitors were also developed. These series of drugs have the ability of regulating and processing amyloid precursor protein (APP) since APP and alpha-synuclein are metaloproteins (iron-regulated proteins), with an iron responsive element 5"UTR mRNA similar to transferring and ferritin. Ladostigil inhibits brain acetyl and butyrylcholinesterase in rats after oral doses. After chronic but not acute treatment, it inhibits MAO-A and -B in the brain. Ladostigil acts like an anti-depressant in the forced swim test in rats, indicating a potential for anti-depressant activity. Ladostigil prevents the destruction of nigrostriatal neurons induced by infusion of neurotoxin MPTP in mice. The propargylamine moiety of ladostigil confers neuroprotective activity against cytotoxicity induced by ischemia and peroxynitrite in cultured neuronal cells. The multi-target iron chelator M30 has all the properties of ladostigil and similar neuroprotective activity to ladostigil, but is not a ChE inhibitor. M30 has a neurorestorative activity in post-lesion of nigrostriatal dopamine neurons in MPTP, lacatcystin and 6-hydroxydopamine animal models of PD. The neurorestorative activity is related to the ability of the drug to activate hypoxia inducing factor (HIF) which induces the production of such neurotrophins as brain-derived neurotrophic factor (BDNF), vascular endothelial growth factor (VEGF) and erythropoietin as well as glia-derived neurotrophic factor (GDNF). The unique multiple actions of ladostigil and M30 make the potentially useful drugs for the treatment of dementia with Parkinsonian-like symptoms and depression.
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Affiliation(s)
- Moussa B H Youdim
- Technion Rappaort Faculty of Medicine, Eve Topf and NPF Centers of Excellence for Neurodegenerative Diseases Haifa, Haifa 30196, Israel. ; Department of Systems Biology, Yonsei University, Seoul 120-749, Korea
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Generation of hydrogen peroxide-resistant murine neuroblastoma cells: a target discovery platform for novel neuroprotective genes. J Neural Transm (Vienna) 2013; 120:1171-8. [DOI: 10.1007/s00702-013-0995-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 02/09/2013] [Indexed: 10/27/2022]
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35
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NGP1-01, a multi-targeted polycyclic cage amine, attenuates brain endothelial cell death in iron overload conditions. Brain Res 2012; 1489:133-9. [DOI: 10.1016/j.brainres.2012.10.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 10/12/2012] [Accepted: 10/14/2012] [Indexed: 11/23/2022]
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Khairova R, Pawar R, Salvadore G, Juruena MF, De Sousa RT, Soeiro-De-Souza MG, Salvador M, Zarate CA, Gattaz WF, Machado-Vieira R. Effects of lithium on oxidative stress parameters in healthy subjects. Mol Med Rep 2012; 5:680-2. [PMID: 22200861 PMCID: PMC3289682 DOI: 10.3892/mmr.2011.732] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 12/06/2011] [Indexed: 02/05/2023] Open
Abstract
Increased neuronal oxidative stress (OxS) induces deleterious effects on signal transduction, structural plasticity and cellular resilience, mainly by inducing lipid peroxidation in membranes, proteins and genes. Major markers of OxS levels include the thiobarbituric acid reactive substances (TBARS) and the enzymes superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase. Lithium has been shown to prevent and/or reverse DNA damage, free-radical formation and lipid peroxidation in diverse models. This study evaluates OxS parameters in healthy volunteers prior to and following lithium treatment. Healthy volunteers were treated with lithium in therapeutic doses for 2-4 weeks. Treatment with lithium in healthy volunteers selectively altered SOD levels in all subjects. Furthermore, a significant decrease in the SOD/CAT ratio was observed following lithium treatment, which was associated with decreased OxS by lowering hydrogen peroxide levels. This reduction in the SOD/CAT ratio may lead to lower OxS, indicated primarily by a decrease in the concentration of cell hydrogen peroxide. Overall, the present findings indicate a potential role for the antioxidant effects of lithium in healthy subjects, supporting its neuroprotective profile in bipolar disorder (BD) and, possibly, in neurodegenerative processes.
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Affiliation(s)
- Rushaniya Khairova
- Experimental Therapeutics, Mood and Anxiety Disorders Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
- Department of Psychiatry, Maimonides Medical Center, New York, NY, USA
| | - Rohit Pawar
- Department of Psychiatry, Maimonides Medical Center, New York, NY, USA
| | - Giacomo Salvadore
- Experimental Therapeutics, Mood and Anxiety Disorders Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
| | - Mario F. Juruena
- Department of Neuroscience and Behavior, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Rafael T. De Sousa
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, SP, Brazil
| | - Márcio G. Soeiro-De-Souza
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, SP, Brazil
| | - Mirian Salvador
- Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, RS
| | - Carlos A. Zarate
- Experimental Therapeutics, Mood and Anxiety Disorders Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
| | - Wagner F. Gattaz
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, SP, Brazil
| | - Rodrigo Machado-Vieira
- Experimental Therapeutics, Mood and Anxiety Disorders Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
- Laboratory of Neuroscience, LIM-27, Institute and Department of Psychiatry, University of Sao Paulo, SP, Brazil
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Murakami K, Murata N, Noda Y, Tahara S, Kaneko T, Kinoshita N, Hatsuta H, Murayama S, Barnham KJ, Irie K, Shirasawa T, Shimizu T. SOD1 (copper/zinc superoxide dismutase) deficiency drives amyloid β protein oligomerization and memory loss in mouse model of Alzheimer disease. J Biol Chem 2011; 286:44557-68. [PMID: 22072713 PMCID: PMC3247976 DOI: 10.1074/jbc.m111.279208] [Citation(s) in RCA: 179] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 11/01/2011] [Indexed: 12/11/2022] Open
Abstract
Oxidative stress is closely linked to the pathogenesis of neurodegeneration. Soluble amyloid β (Aβ) oligomers cause cognitive impairment and synaptic dysfunction in Alzheimer disease (AD). However, the relationship between oligomers, oxidative stress, and their localization during disease progression is uncertain. Our previous study demonstrated that mice deficient in cytoplasmic copper/zinc superoxide dismutase (CuZn-SOD, SOD1) have features of drusen formation, a hallmark of age-related macular degeneration (Imamura, Y., Noda, S., Hashizume, K., Shinoda, K., Yamaguchi, M., Uchiyama, S., Shimizu, T., Mizushima, Y., Shirasawa, T., and Tsubota, K. (2006) Proc. Natl. Acad. Sci. U.S.A. 103, 11282-11287). Amyloid assembly has been implicated as a common mechanism of plaque and drusen formation. Here, we show that Sod1 deficiency in an amyloid precursor protein-overexpressing mouse model (AD mouse, Tg2576) accelerated Aβ oligomerization and memory impairment as compared with control AD mouse and that these phenomena were basically mediated by oxidative damage. The increased plaque and neuronal inflammation were accompanied by the generation of N(ε)-carboxymethyl lysine in advanced glycation end products, a rapid marker of oxidative damage, induced by Sod1 gene-dependent reduction. The Sod1 deletion also caused Tau phosphorylation and the lower levels of synaptophysin. Furthermore, the levels of SOD1 were significantly decreased in human AD patients rather than non-AD age-matched individuals, but mitochondrial SOD (Mn-SOD, SOD2) and extracellular SOD (CuZn-SOD, SOD3) were not. These findings suggest that cytoplasmic superoxide radical plays a critical role in the pathogenesis of AD. Activation of Sod1 may be a therapeutic strategy for the inhibition of AD progression.
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Affiliation(s)
- Kazuma Murakami
- From Molecular Gerontology
- the Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Nakaba Murata
- From Molecular Gerontology
- Applied Biological Chemistry, United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183-8509, Japan
| | | | | | | | | | - Hiroyuki Hatsuta
- Department of Neuropathology, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo 173-0015, Japan
| | - Shigeo Murayama
- Department of Neuropathology, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo 173-0015, Japan
| | - Kevin J. Barnham
- the Department of Pathology, Bio21 Molecular and Biotechnology Institute, The University of Melbourne, Melbourne, Victoria 3010, Australia, and
| | - Kazuhiro Irie
- the Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Takuji Shirasawa
- the Department of Aging Control Medicine, Juntendo University Graduate School of Medicine, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takahiko Shimizu
- From Molecular Gerontology
- Applied Biological Chemistry, United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183-8509, Japan
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Garg SK, Vitvitsky V, Albin R, Banerjee R. Astrocytic redox remodeling by amyloid beta peptide. Antioxid Redox Signal 2011; 14:2385-97. [PMID: 21235355 PMCID: PMC3096517 DOI: 10.1089/ars.2010.3681] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Astrocytes are critical for neuronal redox homeostasis providing them with cysteine needed for glutathione synthesis. In this study, we demonstrate that the astrocytic redox response signature provoked by amyloid beta (Aβ) is distinct from that of a general oxidant (tertiary-butylhydroperoxide [t-BuOOH]). Acute Aβ treatment increased cystathionine β-synthase (CBS) levels and enhanced transsulfuration flux in contrast to repeated Aβ exposure, which decreased CBS and catalase protein levels. Although t-BuOOH also increased transsulfuration flux, CBS levels were unaffected. The net effect of Aβ treatment was an oxidative shift in the intracellular glutathione/glutathione disulfide redox potential in contrast to a reductive shift in response to peroxide. In the extracellular compartment, Aβ, but not t-BuOOH, enhanced cystine uptake and cysteine accumulation, and resulted in remodeling of the extracellular cysteine/cystine redox potential in the reductive direction. The redox changes elicited by Aβ but not peroxide were associated with enhanced DNA synthesis. CBS activity and protein levels tended to be lower in cerebellum from patients with Alzheimer's disease than in age-matched controls. Our study suggests that the alterations in astrocytic redox status could compromise the neuroprotective potential of astrocytes and may be a potential new target for therapeutic intervention in Alzheimer's disease.
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Affiliation(s)
- Sanjay K Garg
- Department of Biochemistry, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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Murakami K, Shimizu T, Irie K. Formation of the 42-mer Amyloid β Radical and the Therapeutic Role of Superoxide Dismutase in Alzheimer's Disease. JOURNAL OF AMINO ACIDS 2011; 2011:654207. [PMID: 22332002 PMCID: PMC3276080 DOI: 10.4061/2011/654207] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Accepted: 12/16/2010] [Indexed: 11/20/2022]
Abstract
Oxidative stress is closely involved in age-related diseases and ageing itself. There is evidence of the leading contribution of oxidative damage to neurodegenerative disease, in contrast to other diseases where oxidative stress plays a secondary role. The 42-mer amyloid β (Aβ42) peptide is thought to be a culprit in the pathogenesis of Alzheimer's disease (AD). Aβ42 aggregates form the oligomeric assembly and show neurotoxicity, causing synaptic dysfunction. Aβ42 also induces tissue oxidation (DNA/RNA, proteins, and lipids) through trace metals (Cu, Zn, and Fe), which can be protected by antioxidant enzymes, vitamin C, and vitamin E. Superoxide dismutase catalyzes the conversion of toxic superoxide radical to less reactive hydrogen peroxide, contributing to protection from AD. Here we review the involvement of oxidative stress in AD progression induced from an imbalance between the radical formation of Aβ42 itself together with unique turn structure at positions Glu22 and Asp23 and several defense systems.
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Affiliation(s)
- Kazuma Murakami
- Laboratory of Organic Chemistry in Life Science, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takahiko Shimizu
- Molecular Gerontology, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo 173-0015, Japan
| | - Kazuhiro Irie
- Laboratory of Organic Chemistry in Life Science, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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Habib LK, Lee MTC, Yang J. Inhibitors of catalase-amyloid interactions protect cells from beta-amyloid-induced oxidative stress and toxicity. J Biol Chem 2010; 285:38933-43. [PMID: 20923778 PMCID: PMC2998107 DOI: 10.1074/jbc.m110.132860] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2010] [Revised: 09/03/2010] [Indexed: 01/09/2023] Open
Abstract
Compelling evidence shows a strong correlation between accumulation of neurotoxic β-amyloid (Aβ) peptides and oxidative stress in the brains of patients afflicted with Alzheimer disease (AD). One hypothesis for this correlation involves the direct and harmful interaction of aggregated Aβ peptides with enzymes responsible for maintaining normal, cellular levels of reactive oxygen species (ROS). Identification of specific, destructive interactions of Aβ peptides with cellular anti-oxidant enzymes would represent an important step toward understanding the pathogenicity of Aβ peptides in AD. This report demonstrates that exposure of human neuroblastoma cells to cytotoxic preparations of aggregated Aβ peptides results in significant intracellular co-localization of Aβ with catalase, an anti-oxidant enzyme responsible for catalyzing the degradation of the ROS intermediate hydrogen peroxide (H(2)O(2)). These catalase-Aβ interactions deactivate catalase, resulting in increased cellular levels of H(2)O(2). Furthermore, small molecule inhibitors of catalase-amyloid interactions protect the hydrogen peroxide-degrading activity of catalase in Aβ-rich environments, leading to reduction of the co-localization of catalase and Aβ in cells, inhibition of Aβ-induced increases in cellular levels of H(2)O(2), and reduction of the toxicity of Aβ peptides. These studies, thus, provide evidence for the important role of intracellular catalase-amyloid interactions in Aβ-induced oxidative stress and propose a novel molecular strategy to inhibit such harmful interactions in AD.
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Affiliation(s)
| | - Michelle T. C. Lee
- Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358
| | - Jerry Yang
- Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358
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41
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Role of oxidative stress in the pathophysiology of bipolar disorder. Neurochem Res 2010; 35:1295-301. [DOI: 10.1007/s11064-010-0195-2] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2010] [Indexed: 11/30/2022]
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42
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Fighera MR, Bonini JS, Frussa-Filho R, Dutra-Filho CS, Hagen MEK, Rubin MA, Mello CF. Monosialoganglioside Increases Catalase Activity in Cerebral Cortex of Rats. Free Radic Res 2009; 38:495-500. [PMID: 15293557 DOI: 10.1080/1071576042000209835] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Monosialoganglioside (GM1) is a neuroprotective agent that has been reported to scavenge free radicals generated during reperfusion and to protect receptors and enzymes from oxidative damage. However, only a few studies have attempted to investigate the effects of GM1 on enzymatic antioxidant defenses of the brain. In the present study, we evaluate the effects of the systemic administration of GM1 on the activity of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px), and on spontaneous chemiluminescence and total radical-trapping potential (TRAP) in cerebral cortex of rats ex vivo. The effects of GM1 on CAT activity and spontaneous chemiluminescence in vitro were also determined. Animals received two injections of GM1 (50 mg/kg, i.p.) or saline (0.85% NaCl, i.p.) spaced 24 h apart. Thirty minutes after the second injection the animals were sacrificed and enzyme activities and spontaneous chemiluminescence and TRAP were measured in cell-free homogenates. GM1 administration reduced spontaneous chemiluminescence and increased catalase activity ex vivo, but had no effect on TRAP, SOD or GSH-Px activities. GM1, at high concentrations, reduced CATactivity in vitro. We suggest that the antioxidant activity of GM1 ganglioside in the cerebral cortex may be due to an increased catalase activity.
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Affiliation(s)
- Michele Rechia Fighera
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, 97105-900, Brazil
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43
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A metabolic and functional overview of brain aging linked to neurological disorders. Biogerontology 2009; 10:377-413. [DOI: 10.1007/s10522-009-9226-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2009] [Accepted: 04/02/2009] [Indexed: 12/21/2022]
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44
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Abstract
Alzheimer disease (AD) is a progressive dementia affecting a large proportion of the aging population. The histopathological changes in AD include neuronal cell death, formation of amyloid plaques and neurofibrillary tangles. There is also evidence that brain tissue in patients with AD is exposed to oxidative stress (e.g., protein oxidation, lipid oxidation, DNA oxidation and glycoxidation) during the course of the disease. Advanced glycation endproducts (AGEs) are present in amyloid plaques in AD, and its extracellular accumulation may be caused by an accelerated oxidation of glycated proteins. AGEs participate in neuronal death causing direct (chemical) and indirect (cellular) free radical production and consequently increase oxidative stress. The development of drugs for the treatment of AD that breaks the vicious cycles of oxidative stress and neurodegeneration offer new opportunities. These approaches include AGE-inhibitors, antioxidants and anti-inflammatory substances, which prevent free radical production.
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Affiliation(s)
- Alejandro Gella
- Faculty of Medicine, Universitat Internacional de Catalunya, Barcelona, Spain.
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45
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Zhu M, Gu F, Shi J, Hu J, Hu Y, Zhao Z. Increased oxidative stress and astrogliosis responses in conditional double-knockout mice of Alzheimer-like presenilin-1 and presenilin-2. Free Radic Biol Med 2008; 45:1493-9. [PMID: 18822370 DOI: 10.1016/j.freeradbiomed.2008.08.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2008] [Revised: 08/28/2008] [Accepted: 08/29/2008] [Indexed: 10/21/2022]
Abstract
Conditional presenilin 1 and presenilin 2 double knockout causes memory dysfunction and reproduces neurodegenerative phenotypes of Alzheimer disease (AD) in mice. Oxidative stress has been long implicated predominantly in amyloidosis-mediated AD pathologies; however, its role in response to the loss-of-function pathogenic mechanism of AD remains unclear. In this study, we examined the oxidative stress status in PS1 and PS2 double-knockout (PS cDKO) mice using F(2)-isoprostanes (iPF(2alpha)-III) as the marker of lipid peroxidation. Lipid peroxidation was enhanced in a gender- and age-related manner in the PS cDKO mice independent of brain Abeta deposition. Such oxidative abnormalities predominantly in cerebral cortex at 2-4 months of age preceded the onset of many pronounced AD neuropathologies, suggesting that increased lipid peroxidation is not only an early pathophysiological response to PS inactivation, but also a potential culprit responsible for the AD-like neurodegenerative pathologies in the PS cDKO mice. Western blot analysis of cortical glial fibrillary acidic protein demonstrated an increased astrogliosis response to PS inactivation, in particular in the PS cDKO mice at as young as 2 months of age, suggesting that lipid peroxidation and neuronal injury may be closely associated with the loss-of-function neuropathogenic mechanism of AD.
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Affiliation(s)
- Manjie Zhu
- Key Laboratory of Brain Functional Genomics, Ministry of Education of China and the Science and Technology Commission of Shanghai Municipality, Shanghai Institute of Brain Functional Genomics, East China Normal University, Shanghai 200062, China
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46
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Gu F, Zhu M, Shi J, Hu Y, Zhao Z. Enhanced oxidative stress is an early event during development of Alzheimer-like pathologies in presenilin conditional knock-out mice. Neurosci Lett 2008; 440:44-8. [PMID: 18539391 DOI: 10.1016/j.neulet.2008.05.050] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2008] [Revised: 05/14/2008] [Accepted: 05/14/2008] [Indexed: 11/26/2022]
Abstract
Conditional double knock-out of presenilin-1 (PS1) and presenilin-2 (PS2) (PS cDKO) in forebrain of mice led to progressive memory dysfunction and forebrain degeneration. These changes in the brain recapitulated most of the neurodegenerative phenotypes of Alzheimer's disease (AD). Oxidative stress in brain tissues is intimately related to AD. In this report, we examined oxidative stress status in cerebral cortex in 2-, 4- and 7-month PS cDKO and the age- and gender-matched control mice (WT). Lipid peroxidation (MDA as the measure) and protein oxidation (protein carbonyl as the measure) were found to be significantly increased in PS cDKO mice over the age points examined, notably in those at 2-month, suggesting that oxidative stress is an early event in response to PS loss-of-function. The oxidative modification of cortical proteins was further confirmed by Oxyblot assay. The investigations into endogenous antioxidant defense (CAT, SOD and GSH-px as measures) revealed a compensatory defense against oxidative stress, particularly at the early age stage, in PS cDKO mice. The expression level of cortical glial fibrillary acidic protein (GFAP) increased in an age-related manner, in particular in 2-month PS cDKO mice, suggesting that the interaction relationship between oxidative stress and inflammatory response may be closely associated with the underlying loss-of-function pathogenesis of AD.
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Affiliation(s)
- Feng Gu
- Key Laboratory of Brain Functional Genomics, MOE & STCSM, Shanghai Institute of Brain Functional Genomics, East China Normal University, 3663 Zhongshan Road (N), Shanghai 200062, China
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Capurso C, Solfrizzi V, D'Introno A, Colacicco AM, Capurso SA, Bifaro L, Menga R, Santamato A, Seripa D, Pilotto A, Capurso A, Panza F. Short arm of chromosome 11 and sporadic Alzheimer's disease: catalase and cathepsin D gene polymorphisms. Neurosci Lett 2007; 432:237-42. [PMID: 18248894 DOI: 10.1016/j.neulet.2007.12.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2007] [Revised: 12/09/2007] [Accepted: 12/13/2007] [Indexed: 11/26/2022]
Abstract
Catalase (CAT) -262 C/T promoter (rs1001179), cathepsin D (CTSD) exon 2 (rs17571), and apolipoprotein E (APOE) gene polymorphisms were studied in 242 patients with sporadic Alzheimer's disease (AD) and 421 unrelated age-, sex-, and ethnically matched control subjects from Apulia (Southern Italy). No statistically significant differences in CAT rs1001179 and CTSD rs17571 genotype and allele distribution between AD cases and healthy controls were observed for the whole AD sample, and when AD group was categorized by age at onset in early- and late-onset AD subsets. Furthermore, we did not find any statistically significant differences in rates between CAT rs1001179 and CTSD rs17571 genotypes and AD controlling for APOE e4 allele status. Our data, at present, do not support a role of two gene polymorphisms of the short arm of the chromosome 11, the CAT rs1001179 and CTSD rs17571, as a possible susceptibility factors for sporadic AD.
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Affiliation(s)
- Cristiano Capurso
- Department of Geriatrics, University of Foggia, Ospedali Riuniti, Viale L. Pinto, 71100 Foggia, Italy.
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Ancelin ML, Christen Y, Ritchie K. Is antioxidant therapy a viable alternative for mild cognitive impairment? Examination of the evidence. Dement Geriatr Cogn Disord 2007; 24:1-19. [PMID: 17495472 DOI: 10.1159/000102567] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/18/2007] [Indexed: 12/14/2022] Open
Abstract
Therapeutic interventions for the prodromal stages of dementia are currently being sought with a view to delaying if not preventing disease onset. Uncertainty as to whether cognitive disorder in a given individual will progress towards dementia and adverse drug side effects has led to hesitancy on the part of drug regulators to instigate preventive pharmacotherapies. In this context, antioxidant therapies may provide a low-risk alternative, targeting very early biological changes. While a growing body of knowledge demonstrates both the importance of oxidative stress in the aetiology of dementia and the efficacy of antioxidant treatment in animal and cellular models, studies in humans are presently inconclusive. While some antioxidants, notably flavonoid- or vitamin-rich diets, appear to lower the relative risk for Alzheimer's disease in humans in observational studies, these results must be interpreted in the light of the biological complexity of the relationship between oxidative stress and neurodegeneration, and the methodological and theoretical shortcomings of studies conducted to date. A clearer understanding of these factors will assist in the interpretation of the results of the intervention studies which are now being undertaken; these studies being the only current means of establishing efficacy for preventive drug treatment of Alzheimer's disease.
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49
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Singh S, Koiri RK, Trigun SK. Acute and Chronic Hyperammonemia Modulate Antioxidant Enzymes Differently in Cerebral Cortex and Cerebellum. Neurochem Res 2007; 33:103-13. [PMID: 17676388 DOI: 10.1007/s11064-007-9422-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2007] [Accepted: 06/18/2007] [Indexed: 10/23/2022]
Abstract
Studies on acute hyperammonemic models suggest a role of oxidative stress in neuropathology of ammonia toxicity. Mostly, a low grade chronic type hyperammonemia (HA) prevails in patients with liver diseases and causes derangements mainly in cerebellum associated functions. To understand whether cerebellum responds differently than other brain regions to chronic type HA with respect to oxidative stress, this article compares active levels of all the antioxidant enzymes vis a vis extent of oxidative damage in cerebral cortex and cerebellum of rats with acute and chronic HA induced by intra-peritoneal injection of ammonium acetate (successive doses of 10 x 10(3) & 8 x 10(3) micromol/kg b.w. at 30 min interval for acute and 8 x 10(3) micromol/kg b.w. daily up to 3 days for chronic HA). As compared to the respective control sets, cerebral cortex of acute HA rats showed significant decline (P < 0.01-0.001) in the levels of superoxide dismutase (SOD), catalase and glutathione peroxidase (GPx) but with no change in glutathione reductase (GR). In cerebellum of acute HA rats, SOD, catalase and GR though declined significantly, GPx level was found to be stable. Contrary to this, during chronic HA, levels of SOD, catalase and GPx increased significantly in cerebral cortex, however, with a significant decline in the levels of SOD and GPx in cerebellum. The results suggest that most of the antioxidant enzymes decline during acute HA in both the brain regions. However, chronic HA induces adaptive changes, with respect to the critical antioxidant enzymes, in cerebral cortex and renders cerebellum susceptible to the oxidative stress. This is supported by approximately 2- and 3-times increases in the level of lipid peroxidation in cerebellum during chronic and acute HA respectively, however, with no change in the cortex due to chronic HA.
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Affiliation(s)
- Santosh Singh
- Biochemistry & Molecular Biology Laboratory, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
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50
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Perisić T, Srećković M, Matić G. An imbalance in antioxidant enzymes and stress proteins in childhood asthma. Clin Biochem 2007; 40:1168-71. [PMID: 17689515 DOI: 10.1016/j.clinbiochem.2007.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2006] [Revised: 05/23/2007] [Accepted: 06/14/2007] [Indexed: 01/09/2023]
Abstract
OBJECTIVES The study was undertaken to examine antioxidant status and level of the major intracellular heat shock proteins (Hsps) in healthy children and children with mild and moderate asthma. DESIGN AND METHODS Native gel assays were performed to estimate activities of copper/zinc (CuZn) and manganese (Mn) superoxide dismutase (SOD), and catalase (CAT) in peripheral blood mononuclear cells (PBMC) of healthy and asthmatic children. Hsp70 and Hsp90 protein levels in PBMCs were assessed by Western blot analysis. RESULTS Moderate asthmatics displayed higher CuZnSOD/CAT activity ratio compared to healthy children, and increased Hsp90 level compared to mild asthmatics and healthy children. CONCLUSIONS With regard to the imbalance in the antioxidant enzyme activities children with moderate asthma differ from healthy children, while an increased Hsp90 expression could be associated with the disease severity, as well.
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Affiliation(s)
- Tatjana Perisić
- Department of Biochemistry, Institute for Biological Research Sinisa Stanković, Despot Stefan Blvd. 142, 11060 Belgrade, Serbia and Montenegro
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