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Chidambaram SB, Anand N, Varma SR, Ramamurthy S, Vichitra C, Sharma A, Mahalakshmi AM, Essa MM. Superoxide dismutase and neurological disorders. IBRO Neurosci Rep 2024; 16:373-394. [PMID: 39007083 PMCID: PMC11240301 DOI: 10.1016/j.ibneur.2023.11.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 11/21/2023] [Indexed: 07/16/2024] Open
Abstract
Superoxide dismutase (SOD) is a common antioxidant enzyme found majorly in living cells. The main physiological role of SOD is detoxification and maintain the redox balance, acts as a first line of defence against Reactive nitrogen species (RNS), Reactive oxygen species (ROS), and other such potentially hazardous molecules. SOD catalyses the conversion of superoxide anion free radicals (O 2 -.) into molecular oxygen (O 2) and hydrogen peroxide (H 2O 2) in the cells. Superoxide dismutases (SODs) are expressed in neurons and glial cells throughout the CNS both intracellularly and extracellularly. Endogenous oxidative stress (OS) linked with enlarged production of reactive oxygen metabolites (ROMs), inflammation, deregulation of redox balance, mitochondrial dysfunction and bioenergetic crisis are found to be prerequisite for neuronal loss in neurological diseases. Clinical and genetic studies indicate a direct correlation between mutations in SOD gene and neurodegenerative diseases, like Amyotrophic Lateral Sclerosis (ALS), Huntington's disease (HD), Parkinson's Disease (PD) and Alzheimer's Disease (AD). Therefore, inhibitors of OS are considered as an optimistic approach to prevent neuronal loss. SOD mimetics like Metalloporphyrin Mn (II)-cyclic polyamines, Nitroxides and Mn (III)- Salen complexes are designed and used as therapeutic extensively in the treatment of neurological disorders. SODs and SOD mimetics are promising future therapeutics in the field of various diseases with OS-mediated pathology.
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Affiliation(s)
- Saravana Babu Chidambaram
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Nikhilesh Anand
- Department of Pharmacology, American University of Antigua College of Medicine, University Park, Jabberwock Beach Road, Antigua, Antigua and Barbuda
| | - Sudhir Rama Varma
- Department of Clinical Sciences, College of Dentistry, Ajman University, 346 Ajman, the United Arab Emirates
- Center of Medical and Bio-allied Health Sciences Research, Ajman University, 346 Ajman, the United Arab Emirates
| | - Srinivasan Ramamurthy
- College of Pharmacy & Health Sciences, University of Science and Technology of Fujairah, 2202 Fujairah, the United Arab Emirates
| | - Chandrasekaran Vichitra
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Ambika Sharma
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Arehally M Mahalakshmi
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Musthafa Mohamed Essa
- Department of Food Science and Nutrition, CAMS, Sultan Qaboos University, Muscat, Oman
- Ageing and Dementia Research Group, Sultan Qaboos University, Muscat, Oman
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Jarosz ŁS, Socała K, Michalak K, Wiater A, Ciszewski A, Majewska M, Marek A, Grądzki Z, Wlaź P. The effect of psychoactive bacteria, Bifidobacterium longum Rosell®-175 and Lactobacillus rhamnosus JB-1, on brain proteome profiles in mice. Psychopharmacology (Berl) 2024; 241:925-945. [PMID: 38156998 PMCID: PMC11031467 DOI: 10.1007/s00213-023-06519-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
RATIONALE The gut microbiota may play an important role in the development and functioning of the mammalian central nervous system. The assumption of the experiment was to prove that the use of probiotic bacterial strains in the diet of mice modifies the expression of brain proteins involved in metabolic and immunological processes. OBJECTIVES AND RESULTS Albino Swiss mice were administered with Bifidobacterium longum Rosell®-175 or Lactobacillus rhamnosus JB-1 every 24 h for 28 days. Protein maps were prepared from hippocampal homogenates of euthanized mice. Selected proteins that were statistically significant were purified and concentrated and identified using MALDI-TOF mass spectrometry. Among the analysed samples, 13 proteins were identified. The mean volumes of calcyon, secreted frizzled-associated protein 3, and catalase in the hippocampus of mice from both experimental groups were statistically significantly higher than in the control group. In mice supplemented with Lactobacillus rhamnosus JB-1, a lower mean volume of fragrance binding protein 2, shadow of prion protein, and glycine receptor α4 subunit was observed compared to the control. CONCLUSION The psychobiotics Bifidobacterium longum Rosell®-175 and Lactobacillus rhamnosus JB-1enhances expression of proteins involved in the activation and maturation of nerve cells, as well as myelination and homeostatic regulation of neurogenesis in mice. The tested psychobiotics cause a decrease in the expression of proteins associated with CNS development and in synaptic transmission, thereby reducing the capacity for communication between nerve cells. The results of the study indicate that psychobiotic bacteria can be used in auxiliary treatment of neurological disorders.
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Affiliation(s)
- Łukasz S Jarosz
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland.
| | - Katarzyna Socała
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Katarzyna Michalak
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland
| | - Adrian Wiater
- Department of Industrial and Environmental Microbiology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Artur Ciszewski
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland
| | - Małgorzata Majewska
- Department of Industrial and Environmental Microbiology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
| | - Agnieszka Marek
- Department of Preventive Veterinary and Avian Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland
| | - Zbigniew Grądzki
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612, Lublin, Poland
| | - Piotr Wlaź
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland
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Mattos LMM, Hottum HM, Pires DC, Segat BB, Horn A, Fernandes C, Pereira MD. Exploring the antioxidant activity of Fe(III), Mn(III)Mn(II), and Cu(II) compounds in Saccharomyces cerevisiae and Galleria mellonella models of study. FEMS Yeast Res 2024; 24:foad052. [PMID: 38124682 PMCID: PMC10776354 DOI: 10.1093/femsyr/foad052] [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: 08/16/2023] [Revised: 11/19/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023] Open
Abstract
Reactive oxygen species (ROS) are closely related to oxidative stress, aging, and the onset of human diseases. To mitigate ROS-induced damages, extensive research has focused on examining the antioxidative attributes of various synthetic/natural substances. Coordination compounds serving as synthetic antioxidants have emerged as a promising approach to attenuate ROS toxicity. Herein, we investigated the antioxidant potential of a series of Fe(III) (1), Mn(III)Mn(II) (2) and Cu(II) (3) coordination compounds synthesized with the ligand N-(2-hydroxybenzyl)-N-(2-pyridylmethyl)[(3-chloro)(2-hydroxy)]-propylamine in Saccharomyces cerevisiae exposed to oxidative stress. We also assessed the antioxidant potential of these complexes in the alternative model of study, Galleria mellonella. DPPH analysis indicated that these complexes presented moderate antioxidant activity. However, treating Saccharomyces cerevisiae with 1, 2 and 3 increased the tolerance against oxidative stress and extended yeast lifespan. The treatment of yeast cells with these complexes decreased lipid peroxidation and catalase activity in stressed cells, whilst no change in SOD activity was observed. Moreover, these complexes induced the Hsp104 expression. In G. mellonella, complex administration extended larval survival under H2O2 stress and did not affect the insect's life cycle. Our results suggest that the antioxidant potential exhibited by these complexes could be further explored to mitigate various oxidative stress-related disorders.
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Affiliation(s)
- Larissa M M Mattos
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, RJ, Brazil
- Rede de Micologia RJ - FAPERJ
| | - Hyan M Hottum
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, RJ, Brazil
- Rede de Micologia RJ - FAPERJ
| | - Daniele C Pires
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, RJ, Brazil
- Rede de Micologia RJ - FAPERJ
| | - Bruna B Segat
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Adolfo Horn
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Christiane Fernandes
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Marcos D Pereira
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, RJ, Brazil
- Rede de Micologia RJ - FAPERJ
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Tancheva L, Kalfin R, Minchev B, Uzunova D, Tasheva K, Tsvetanova E, Georgieva A, Alexandrova A, Stefanova M, Solak A, Lazarova M, Hodzhev Y, Grigorova V, Yarkov D, Petkova-Kirova P. Memory Recovery Effect of a New Bioactive Innovative Combination in Rats with Experimental Dementia. Antioxidants (Basel) 2023; 12:2050. [PMID: 38136170 PMCID: PMC10740861 DOI: 10.3390/antiox12122050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Alzheimer's disease manifests as a complex pathological condition, with neuroinflammation, oxidative stress and cholinergic dysfunction being a few of the many pathological changes. Due to the complexity of the disease, current therapeutic strategies aim at a multitargeted approach, often relying on a combination of substances with versatile and complementary effects. In the present study, a unique combination of α-lipoic acid, citicoline, extracts of leaves from olive tree and green tea, vitamin D3, selenium and an immune-supporting complex was tested in scopolamine-induced dementia in rats. Using behavioral and biochemical methods, we assessed the effects of the combination on learning and memory, and elucidated the mechanisms of these effects. Our results showed that, compared to its components, the experimental combination was most efficient in improving short- and long-term memory as assessed by the step-through method as well as spatial memory as assessed by T-maze and Barnes maze underlined by decreases in AChE activity (p < 0.05) and LPO (p < 0.001), increases in SOD activity in the cortex (p < 0.05) and increases in catalase (p < 0.05) and GPx (p < 0.01) activities and BDNF (p < 0.001) and pCREB (p < 0.05) levels in the hippocampus. No significant histopathological changes or blood parameter changes were detected, making the experimental combination an effective and safe candidate in a multitargeted treatment of AD.
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Affiliation(s)
- Lyubka Tancheva
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Reni Kalfin
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
- Department of Healthcare, South-West University “Neofit Rilski”, Ivan Mihailov Str. 66, 2700 Blagoevgrad, Bulgaria
| | - Borislav Minchev
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Diamara Uzunova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Krasimira Tasheva
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 21, 1113 Sofia, Bulgaria;
| | - Elina Tsvetanova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Almira Georgieva
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Albena Alexandrova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
- National Sports Academy, Department of Physiology and Biochemistry, Acad. S. Mladenov Str. 21, 1700 Sofia, Bulgaria
| | - Miroslava Stefanova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Ayten Solak
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
- Institute of Cryobiology and Food Technologies, Cherni Vrah Blvd 53, 1407 Sofia, Bulgaria
| | - Maria Lazarova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Yordan Hodzhev
- National Center of Infectious and Parasitic Diseases, Yanko Sakazov Blvd 26, 1504 Sofia, Bulgaria;
| | - Valya Grigorova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
| | - Dobri Yarkov
- Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria;
| | - Polina Petkova-Kirova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113 Sofia, Bulgaria; (L.T.); (B.M.); (D.U.); (E.T.); (A.G.); (A.A.); (M.S.); (A.S.); (M.L.)
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Sadeghzadeh J, Hosseini L, Mobed A, Zangbar HS, Jafarzadeh J, Pasban J, Shahabi P. The Impact of Cerebral Ischemia on Antioxidant Enzymes Activity and Neuronal Damage in the Hippocampus. Cell Mol Neurobiol 2023; 43:3915-3928. [PMID: 37740074 DOI: 10.1007/s10571-023-01413-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 09/09/2023] [Indexed: 09/24/2023]
Abstract
Cerebral ischemia and subsequent reperfusion, leading to reduced blood supply to specific brain areas, remain significant contributors to neurological damage, disability, and mortality. Among the vulnerable regions, the subcortical areas, including the hippocampus, are particularly susceptible to ischemia-induced injuries, with the extent of damage influenced by the different stages of ischemia. Neural tissue undergoes various changes and damage due to intricate biochemical reactions involving free radicals, oxidative stress, inflammatory responses, and glutamate toxicity. The consequences of these processes can result in irreversible harm. Notably, free radicals play a pivotal role in the neuropathological mechanisms following ischemia, contributing to oxidative stress. Therefore, the function of antioxidant enzymes after ischemia becomes crucial in preventing hippocampal damage caused by oxidative stress. This study explores hippocampal neuronal damage and enzymatic antioxidant activity during ischemia and reperfusion's early and late stages.
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Affiliation(s)
- Jafar Sadeghzadeh
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran
| | - Leila Hosseini
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran
| | - Ahmad Mobed
- Physical Medicine and Rehabilitation Research Center, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran
| | - Hamid Soltani Zangbar
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran
| | - Jaber Jafarzadeh
- Department of Community Nutrition Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran
| | - Jamshid Pasban
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran
| | - Parviz Shahabi
- Department of Physiology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Islamic Republic of Iran.
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Wahl D, Smith ME, McEntee CM, Cavalier AN, Osburn SC, Burke SD, Grant RA, Nerguizian D, Lark DS, Link CD, LaRocca TJ. The reverse transcriptase inhibitor 3TC protects against age-related cognitive dysfunction. Aging Cell 2023; 22:e13798. [PMID: 36949552 PMCID: PMC10186603 DOI: 10.1111/acel.13798] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 03/24/2023] Open
Abstract
Aging is the primary risk factor for most neurodegenerative diseases, including Alzheimer's disease. Major hallmarks of brain aging include neuroinflammation/immune activation and reduced neuronal health/function. These processes contribute to cognitive dysfunction (a key risk factor for Alzheimer's disease), but their upstream causes are incompletely understood. Age-related increases in transposable element (TE) transcripts might contribute to reduced cognitive function with brain aging, as the reverse transcriptase inhibitor 3TC reduces inflammation in peripheral tissues and TE transcripts have been linked with tau pathology in Alzheimer's disease. However, the effects of 3TC on cognitive function with aging have not been investigated. Here, in support of a role for TE transcripts in brain aging/cognitive decline, we show that 3TC: (a) improves cognitive function and reduces neuroinflammation in old wild-type mice; (b) preserves neuronal health with aging in mice and Caenorhabditis elegans; and (c) enhances cognitive function in a mouse model of tauopathy. We also provide insight on potential underlying mechanisms, as well as evidence of translational relevance for these observations by showing that TE transcripts accumulate with brain aging in humans, and that these age-related increases intersect with those observed in Alzheimer's disease. Collectively, our results suggest that TE transcript accumulation during aging may contribute to cognitive decline and neurodegeneration, and that targeting these events with reverse transcriptase inhibitors like 3TC could be a viable therapeutic strategy.
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Affiliation(s)
- Devin Wahl
- Department of Health and Exercise ScienceColorado State UniversityFort CollinsColoradoUSA
- Center for Healthy AgingColorado State UniversityFort CollinsColoradoUSA
| | - Meghan E. Smith
- Department of Health and Exercise ScienceColorado State UniversityFort CollinsColoradoUSA
- Center for Healthy AgingColorado State UniversityFort CollinsColoradoUSA
| | - Cali M. McEntee
- Department of Health and Exercise ScienceColorado State UniversityFort CollinsColoradoUSA
- Center for Healthy AgingColorado State UniversityFort CollinsColoradoUSA
| | - Alyssa N. Cavalier
- Department of Health and Exercise ScienceColorado State UniversityFort CollinsColoradoUSA
- Center for Healthy AgingColorado State UniversityFort CollinsColoradoUSA
| | - Shelby C. Osburn
- Department of Health and Exercise ScienceColorado State UniversityFort CollinsColoradoUSA
- Center for Healthy AgingColorado State UniversityFort CollinsColoradoUSA
| | - Samuel D. Burke
- Department of Health and Exercise ScienceColorado State UniversityFort CollinsColoradoUSA
- Center for Healthy AgingColorado State UniversityFort CollinsColoradoUSA
| | - Randy A. Grant
- Department of Health and Exercise ScienceColorado State UniversityFort CollinsColoradoUSA
- Center for Healthy AgingColorado State UniversityFort CollinsColoradoUSA
| | - David Nerguizian
- Department of Biochemistry and Molecular GeneticsUniversity of Colorado School of MedicineAuroraColoradoUSA
| | - Daniel S. Lark
- Department of Health and Exercise ScienceColorado State UniversityFort CollinsColoradoUSA
| | - Christopher D. Link
- Department of Integrative PhysiologyUniversity of Colorado BoulderBoulderColoradoUSA
| | - Thomas J. LaRocca
- Department of Health and Exercise ScienceColorado State UniversityFort CollinsColoradoUSA
- Center for Healthy AgingColorado State UniversityFort CollinsColoradoUSA
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Pham TB, Boussaty EC, Currais A, Maher P, Schubert DR, Manor U, Friedman RA. Attenuation of Age-Related Hearing Impairment in Senescence-Accelerated Mouse Prone 8 (SAMP8) Mice Treated with Fatty Acid Synthase Inhibitor CMS121. J Mol Neurosci 2023; 73:307-315. [PMID: 37097512 PMCID: PMC10200781 DOI: 10.1007/s12031-023-02119-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 04/17/2023] [Indexed: 04/26/2023]
Abstract
In the senescence-accelerated mouse prone 8 (SAMP8) mouse model, oxidative stress leads to premature senescence and age-related hearing impairment (ARHI). CMS121 inhibits oxytosis/ferroptosis by targeting fatty acid synthase. The aim of our study was to determine whether CMS121 is protective against ARHI in SAMP8 mice. Auditory brainstem responses (ABRs) were used to assess baseline hearing in sixteen 4-week-old female SAMP8 mice, which were divided into two cohorts. The control group was fed a vehicle diet, while the experimental group was fed a diet containing CMS121. ABRs were measured until 13 weeks of age. Cochlear immunohistochemistry was performed to analyze the number of paired ribbon-receptor synapses per inner hair cell (IHC). Descriptive statistics are provided with mean ± SEM. Two-sample t-tests were performed to compare hearing thresholds and paired synapse count across the two groups, with alpha = 0.05. Baseline hearing thresholds in the control group were statistically similar to those of the CMS121 group. At 13 weeks of age, the control group had significantly worse hearing thresholds at 12 kHz (56.5 vs. 39.8, p = 0.044) and 16 kHz (64.8 vs. 43.8, p = 0.040) compared to the CMS121 group. Immunohistochemistry showed a significantly lower synapse count per IHC in the control group (15.7) compared to the CMS121 group (18.4), p = 0.014. Our study shows a significant reduction in ABR threshold shifts and increased preservation of IHC ribbon synapses in the mid-range frequencies among mice treated with CMS121 compared to untreated mice.
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Affiliation(s)
- Tammy B Pham
- Department of Otolaryngology-Head and Neck Surgery, University of California San Diego Health, 92037, La Jolla, CA, USA
| | - Ely Cheikh Boussaty
- Department of Otolaryngology-Head and Neck Surgery, University of California San Diego Health, 92037, La Jolla, CA, USA
| | - Antonio Currais
- Cellular Neurobiology Laboratory, Salk Institute for Biological Studies, 92037, La Jolla, CA, USA
| | - Pamela Maher
- Cellular Neurobiology Laboratory, Salk Institute for Biological Studies, 92037, La Jolla, CA, USA
| | - David R Schubert
- Cellular Neurobiology Laboratory, Salk Institute for Biological Studies, 92037, La Jolla, CA, USA
| | - Uri Manor
- Waitt Advanced Biophotonics Center, Salk Institute for Biological Studies, 92037, La Jolla, CA, USA
| | - Rick A Friedman
- Department of Otolaryngology-Head and Neck Surgery, University of California San Diego Health, 92037, La Jolla, CA, USA.
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Karami F, Jamaati H, Coleman-Fuller N, Zeini MS, Hayes AW, Gholami M, Salehirad M, Darabi M, Motaghinejad M. Is metformin neuroprotective against diabetes mellitus-induced neurodegeneration? An updated graphical review of molecular basis. Pharmacol Rep 2023; 75:511-543. [PMID: 37093496 DOI: 10.1007/s43440-023-00469-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 04/25/2023]
Abstract
Diabetes mellitus (DM) is a metabolic disease that activates several molecular pathways involved in neurodegenerative disorders. Metformin, an anti-hyperglycemic drug used for treating DM, has the potential to exert a significant neuroprotective role against the detrimental effects of DM. This review discusses recent clinical and laboratory studies investigating the neuroprotective properties of metformin against DM-induced neurodegeneration and the roles of various molecular pathways, including mitochondrial dysfunction, oxidative stress, inflammation, apoptosis, and its related cascades. A literature search was conducted from January 2000 to December 2022 using multiple databases including Web of Science, Wiley, Springer, PubMed, Elsevier Science Direct, Google Scholar, the Core Collection, Scopus, and the Cochrane Library to collect and evaluate peer-reviewed literature regarding the neuroprotective role of metformin against DM-induced neurodegenerative events. The literature search supports the conclusion that metformin is neuroprotective against DM-induced neuronal cell degeneration in both peripheral and central nervous systems, and this effect is likely mediated via modulation of oxidative stress, inflammation, and cell death pathways.
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Affiliation(s)
- Fatemeh Karami
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamidreza Jamaati
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Natalie Coleman-Fuller
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul, MN, 55108, USA
| | - Maryam Shokrian Zeini
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Wallace Hayes
- University of South Florida College of Public Health and Institute for Integrative Toxicology, Michigan State University, East Lansing, USA
| | - Mina Gholami
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahsa Salehirad
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Darabi
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Motaghinejad
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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9
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Moore SJ, Cazares VA, Temme SJ, Murphy GG. Age-related deficits in neuronal physiology and cognitive function are recapitulated in young mice overexpressing the L-type calcium channel, Ca V 1.3. Aging Cell 2023; 22:e13781. [PMID: 36703244 PMCID: PMC10014069 DOI: 10.1111/acel.13781] [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: 09/01/2022] [Revised: 12/21/2022] [Accepted: 12/30/2022] [Indexed: 01/28/2023] Open
Abstract
The calcium dysregulation hypothesis of brain aging posits that an age-related increase in neuronal calcium concentration is responsible for alterations in a variety of cellular processes that ultimately result in learning and memory deficits in aged individuals. We previously generated a novel transgenic mouse line, in which expression of the L-type voltage-gated calcium, CaV 1.3, is increased by ~50% over wild-type littermates. Here, we show that, in young mice, this increase is sufficient to drive changes in neuronal physiology and cognitive function similar to those observed in aged animals. Specifically, there is an increase in the magnitude of the postburst afterhyperpolarization, a deficit in spatial learning and memory (assessed by the Morris water maze), a deficit in recognition memory (assessed in novel object recognition), and an overgeneralization of fear to novel contexts (assessed by contextual fear conditioning). While overexpression of CaV 1.3 recapitulated these key aspects of brain aging, it did not produce alterations in action potential firing rates, basal synaptic communication, or spine number/density. Taken together, these results suggest that increased expression of CaV 1.3 in the aged brain is a crucial factor that acts in concert with age-related changes in other processes to produce the full complement of structural, functional, and behavioral outcomes that are characteristic of aged animals.
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Affiliation(s)
- Shannon J. Moore
- Michigan Neuroscience InstituteAnn ArborMichiganUSA
- Molecular & Integrative PhysiologyUniversity of MichiganAnn ArborMichiganUSA
| | - Victor A. Cazares
- Molecular & Integrative PhysiologyUniversity of MichiganAnn ArborMichiganUSA
- Department of PsychologyWilliams CollegeWilliamstownMassachusettsUSA
| | | | - Geoffrey G. Murphy
- Michigan Neuroscience InstituteAnn ArborMichiganUSA
- Molecular & Integrative PhysiologyUniversity of MichiganAnn ArborMichiganUSA
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10
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Chavda V, Patel S. Voglibose and saxagliptin ameliorate the post-surgical stress and cognitive dysfunction in chronic anaesthesia exposed diabetic MCAo induced ischemic rats. IBRO Neurosci Rep 2022; 13:426-435. [PMID: 36386599 PMCID: PMC9650028 DOI: 10.1016/j.ibneur.2022.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 10/23/2022] [Indexed: 11/11/2022] Open
Abstract
Background Chronic surgical anaesthesia and uncontrolled hyperglycemia are bidirectional risk factors for the development of psychiatric, cerebrovascular, and cardiovascular diseases. Objective The current study was designed to elucidate the neuroprotective effects of anti-diabetic agents in pre and post-surgical anaesthesia exposure on diabetic ischemic rats. Methods The diabetes type-2 was induced and rats having more than 250 gm/dl blood glucose levels were considered for study. Administration of anaesthetic agents (ketamine 100 mg/kg IP, xylazine 10 mg/kg IP) were done pre and post MCAo surgery for 7 days. The treatment with anti-diabetic agents (voglibose, saxagliptin, repaglinide, dapagliflozin) was carried out after 7 days of Post MCAo surgery for one week. After treatment, assessment of neurobehavioral function was carried out using Morris Water Maze. After that, brains were excised and bloods were collected from all groups subjected for assessment of neuromodulator levels, oxidative stress parameters, serum biochemical biomarkers. Results The treatment with voglibose and saxagliptin not only improved neuromodulator levels statistically significant (p < 0.001) and cognitive profile but also significantly improved (p < 0.01) overall stroke serum biomarkers (Serum Glucose, GGT, CRP, CK-MB, LDH). Conclusion The results of the present study, suggested that chronic exposure of anaesthesia worsens the cognition and increases risk of stroke biomarkers in diabetic conditions. We can conclude that voglibose, saxagliptin, and dapagliflozin can significantly improve the postoperative mortality, morbidity, and cognitive dysfunction caused by post-surgical stress and chronic anaesthesia-induced cognitive dysfunction.
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Affiliation(s)
| | - Snehal Patel
- Correspondence to: Department of Pharmacology, Institute of Pharmacy, Nirma University, Ahmedabad, Gujarat, India.
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11
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Niveditha S, Shivanandappa T. Potentiation of paraquat toxicity by inhibition of the antioxidant defenses and protective effect of the natural antioxidant, 4-hydroxyisopthalic acid in Drosophila melanogaster. Comp Biochem Physiol C Toxicol Pharmacol 2022; 259:109399. [PMID: 35753646 DOI: 10.1016/j.cbpc.2022.109399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/23/2022] [Accepted: 06/19/2022] [Indexed: 11/25/2022]
Abstract
Exposure to pesticides such as paraquat (PQ) is known to induce oxidative stress-mediated damage, which is implicated in neurodegenerative diseases. The antioxidant enzymes are part of the endogenous defense mechanisms capable of protecting against oxidative damage, and down-regulation of these enzymes results in elevated oxidative stress. In this study, we have evaluated the protective action of 4-hydroxyisophthalic acid (DHA-I), a novel bioactive molecule from the roots of D. hamiltonii, against PQ toxicity and demonstrated the protective role of endogenous antioxidant enzymes under the condition of oxidative stress using Drosophila model. The activity of the major antioxidant enzymes, superoxide dismutase 1 (SOD1) and catalase, was suppressed either by RNAi-mediated post transcriptional gene silencing or chemical inhibition. With the decreased in vivo activity of either SOD1 or catalase, Drosophila exhibited hypersensitivity to PQ toxicity, demonstrating the essential role of antioxidant enzymes in the mechanism of defense against PQ-induced oxidative stress. Dietary supplementation of DHA-I increased the resistance of Drosophila depleted in either SOD1 or catalase to PQ toxicity. Enhanced survival of flies against PQ toxicity indicates the protective role of DHA-I against oxidative stress-mediated damage under the condition of compromised antioxidant defenses.
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Affiliation(s)
- S Niveditha
- Neurobiology laboratory, Department of Zoology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India
| | - T Shivanandappa
- Neurobiology laboratory, Department of Zoology, University of Mysore, Manasagangotri, Mysuru 570006, Karnataka, India.
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12
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Huo L, Lu X, Wu F, Chang C, Ning Y, Zhang XY. Elevated activity of superoxide dismutase in male late-life schizophrenia and its correlation with clinical symptoms and cognitive deficits. BMC Psychiatry 2021; 21:606. [PMID: 34863137 PMCID: PMC8642951 DOI: 10.1186/s12888-021-03604-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 11/15/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Despite inconsistent findings, accumulative evidence has shown abnormalities of the key antioxidant enzyme, superoxide dismutase (SOD), in patients with schizophrenia. However, few studies explored SOD in late-life schizophrenia (LLS). Our work aimed to investigate changes in SOD activity and the relationship between SOD activity and psychotic symptoms or cognitive deficits in LLS. METHODS 32 geriatric male patients with schizophrenia (age ≥ 60) and 28 age-matched male normal controls were recruited in the study. We assessed cognitive functions with the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), evaluated the severity of clinical symptoms with the Positive and Negative Syndrome Scale (PANSS), and measured the plasma levels of SOD. RESULTS Patients with LLS presented with higher total levels of SOD compared to the controls (81.70 vs. 65.26 U/ml, p < .001). Except for the visuospatial index, the cognitive performance was significantly worse on RBANS total and other domain scores in the schizophrenia group than the control group. In the schizophrenia group, SOD levels were positively correlated with subscores of general psychopathology and negative symptoms and total scores of the PANSS (all p < .05), and inversely associated with performance in immediate memory, language, and RBANS total scores (all p < .05). CONCLUSIONS Our findings suggest that patients with LLS display disturbances in the antioxidant system, which may underlie the pathological process of cognitive impairments and negative symptoms in the late stage of schizophrenia. Supplementing with antioxidants could be a potential treatment.
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Affiliation(s)
- Lijuan Huo
- grid.410737.60000 0000 8653 1072Department of Psychiatry, Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, 510000 China ,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, 510000 China
| | - Xiaobing Lu
- grid.410737.60000 0000 8653 1072Department of Psychiatry, Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, 510000 China ,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, 510000 China
| | - Fengchun Wu
- grid.410737.60000 0000 8653 1072Department of Psychiatry, Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, 510000 China ,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, 510000 China
| | - Catherine Chang
- grid.267308.80000 0000 9206 2401Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX USA
| | - Yuping Ning
- grid.410737.60000 0000 8653 1072Department of Psychiatry, Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, 510000 China ,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, 510000 China ,grid.284723.80000 0000 8877 7471The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Xiang Yang Zhang
- Department of Psychiatry, Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, 510000, China. .,CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, 16 Lincui Road, Chaoyang District, Beijing, 100101, China.
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13
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Rouco L, Alvariño R, Alfonso A, Romero MJ, Pedrido R, Maneiro M. Neuroprotective effects of fluorophore-labelled manganese complexes: Determination of ROS production, mitochondrial membrane potential and confocal fluorescence microscopy studies in neuroblastoma cells. J Inorg Biochem 2021; 227:111670. [PMID: 34864293 DOI: 10.1016/j.jinorgbio.2021.111670] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 02/07/2023]
Abstract
In this work, four manganese(II) complexes derived from the ligands H2L1-H2L4, that incorporate dansyl or tosyl fluorescent dyes, have been investigated in term of their antioxidant properties. Two of the manganese(II) complexes have been newly prepared using the asymmetric half-salen ligand H2L2 and the thiosemicarbazone ligand H2L3. The four organic strands and the manganese complexes have been characterized by different analytical and spectroscopic techniques. The study of the antioxidant behaviour of these two new complexes and other two fluorophore-labelled analogues was tested in SH-SY5Y neuroblastoma cells. These four model complexes 1-4 were found to protect cells from oxidative damage in this human neuronal model, by reducing the release of reactive oxygen species. Complexes 1-4 significantly improved cell survival, with levels between 79.1 ± 0.8% and 130.9 ± 4.1%. Moreover, complexes 3 and 4 were able to restore the mitochondrial membrane potential at 1 μM, with 4 reaching levels higher than 85%, similar to the percentages obtained by the positive control agent cyclosporin A. The incorporation of the fluorescent label in the complexes allowed the study of their ability to enter the human neuroblastoma cells by confocal microscopy.
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Affiliation(s)
- Lara Rouco
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain
| | - Rebeca Alvariño
- Departamento de Farmacología, Facultade de Veterinaria, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain.
| | - Amparo Alfonso
- Departamento de Farmacología, Facultade de Veterinaria, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain
| | - María J Romero
- Departamento de Didácticas Aplicadas, Facultade de Formación do Profesorado, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain
| | - Rosa Pedrido
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Marcelino Maneiro
- Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain.
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14
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Malard E, Valable S, Bernaudin M, Pérès E, Chatre L. The Reactive Species Interactome in the Brain. Antioxid Redox Signal 2021; 35:1176-1206. [PMID: 34498917 DOI: 10.1089/ars.2020.8238] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Significance: Redox pioneer Helmut Sies attempted to explain reactive species' challenges faced by organelles, cells, tissues, and organs via three complementary definitions: (i) oxidative stress, that is, the disturbance in the prooxidant-antioxidant defense balance in favor of the prooxidants; (ii) oxidative eustress, the low physiological exposure to prooxidants; and (iii) oxidative distress, the supraphysiological exposure to prooxidants. Recent Advances: Identification, concentration, and interactions are the most important elements to improve our understanding of reactive species in physiology and pathology. In this context, the reactive species interactome (RSI) is a new multilevel redox regulatory system that identifies reactive species families, reactive oxygen species (ROS), reactive nitrogen species (RNS), and reactive sulfur species, and it integrates their interactions with their downstream biological targets. Critical Issues: We propose a united view to fully combine reactive species identification, oxidative eustress and distress, and the RSI system. In this view, we also propose including the forgotten reactive carbonyl species, an increasingly rediscovered reactive species family related to the other reactive families, and key enzymes within the RSI. We focus on brain physiology and pathology to demonstrate why this united view should be considered. Future Directions: More studies are needed for an improved understanding of the contributions of reactive species through their identification, concentration, and interactions, including in the brain. Appreciating the RSI in its entirety should unveil new molecular players and mechanisms in physiology and pathology in the brain and elsewhere.
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Affiliation(s)
- Elise Malard
- Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Samuel Valable
- Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Myriam Bernaudin
- Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Elodie Pérès
- Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Laurent Chatre
- Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
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15
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Torres AK, Jara C, Park-Kang HS, Polanco CM, Tapia D, Alarcón F, de la Peña A, Llanquinao J, Vargas-Mardones G, Indo JA, Inestrosa NC, Tapia-Rojas C. Synaptic Mitochondria: An Early Target of Amyloid-β and Tau in Alzheimer's Disease. J Alzheimers Dis 2021; 84:1391-1414. [PMID: 34719499 DOI: 10.3233/jad-215139] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Alzheimer's disease (AD) is characterized by cognitive impairment and the presence of neurofibrillary tangles and senile plaques in the brain. Neurofibrillary tangles are composed of hyperphosphorylated tau, while senile plaques are formed by amyloid-β (Aβ) peptide. The amyloid hypothesis proposes that Aβ accumulation is primarily responsible for the neurotoxicity in AD. Multiple Aβ-mediated toxicity mechanisms have been proposed including mitochondrial dysfunction. However, it is unclear if it precedes Aβ accumulation or if is a consequence of it. Aβ promotes mitochondrial failure. However, amyloid β precursor protein (AβPP) could be cleaved in the mitochondria producing Aβ peptide. Mitochondrial-produced Aβ could interact with newly formed ones or with Aβ that enter the mitochondria, which may induce its oligomerization and contribute to further mitochondrial alterations, resulting in a vicious cycle. Another explanation for AD is the tau hypothesis, in which modified tau trigger toxic effects in neurons. Tau induces mitochondrial dysfunction by indirect and apparently by direct mechanisms. In neurons mitochondria are classified as non-synaptic or synaptic according to their localization, where synaptic mitochondrial function is fundamental supporting neurotransmission and hippocampal memory formation. Here, we focus on synaptic mitochondria as a primary target for Aβ toxicity and/or formation, generating toxicity at the synapse and contributing to synaptic and memory impairment in AD. We also hypothesize that phospho-tau accumulates in mitochondria and triggers dysfunction. Finally, we discuss that synaptic mitochondrial dysfunction occur in aging and correlates with age-related memory loss. Therefore, synaptic mitochondrial dysfunction could be a predisposing factor for AD or an early marker of its onset.
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Affiliation(s)
- Angie K Torres
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile.,Centro de Envejecimiento y Regeneración (CARE), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia Jara
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
| | - Han S Park-Kang
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
| | - Catalina M Polanco
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
| | - Diego Tapia
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
| | - Fabián Alarcón
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
| | - Adely de la Peña
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
| | - Jesus Llanquinao
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
| | - Gabriela Vargas-Mardones
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
| | - Javiera A Indo
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
| | - Nibaldo C Inestrosa
- Centro de Envejecimiento y Regeneración (CARE), Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas, Chile
| | - Cheril Tapia-Rojas
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebasti´n Sede Los Leones, Santiago, Chile
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16
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Sanchez-Molina P, Almolda B, Benseny-Cases N, González B, Perálvarez-Marín A, Castellano B. Specific microglial phagocytic phenotype and decrease of lipid oxidation in white matter areas during aging: Implications of different microenvironments. Neurobiol Aging 2021; 105:280-295. [PMID: 34139605 DOI: 10.1016/j.neurobiolaging.2021.03.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 03/25/2021] [Accepted: 03/28/2021] [Indexed: 12/25/2022]
Abstract
Physiological aging is characterized by an imbalance of pro-inflammatory and anti-inflammatory mediators leading to neuroinflammation. Microglial cells, which are highly regulated by the local microenvironment, undergo specific changes depending upon the brain area during aging. The aim of this study was to evaluate the influence of age over microglial cells along different brain areas and microenvironments. For this purpose, transgenic mice with overproduction of either the anti-inflammatory IL-10 cytokine or the pro-inflammatory IL-6 cytokine were used. Our results show that, during aging, microglial cells located in white matter (WM) areas maintain their phagocytic capacity but present a specific phagocytic phenotype with receptors involved in myelin recognition, arguing for aging-derived myelin damage. Whereas IL-10 overproduction anticipates the age-related microglial phagocytic phenotype, maintaining it over time, IL-6 overproduction exacerbates this phenotype in aging. These modifications were linked with a higher efficiency of myelin engulfment by microglia in aged transgenic animals. Moreover, we show, in a novel way, lower lipid oxidation during aging in WM areas, regardless of the genotype. The novelty of the insights presented in this study open a window to deeply investigate myelin lipid oxidation and the role of microglial cells in its regulation during physiological aging.
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Affiliation(s)
- Paula Sanchez-Molina
- Institute of Neurosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Beatriz Almolda
- Institute of Neurosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain.
| | - Núria Benseny-Cases
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, Cerdanyola del Vallès, Catalonia, Spain
| | - Berta González
- Institute of Neurosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Alex Perálvarez-Marín
- Institute of Neurosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain; Department of Biochemistry and Molecular Biology. Universitat Autònoma de Barcelona, Bellaterra, Catalonia, Spain
| | - Bernardo Castellano
- Institute of Neurosciences, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
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17
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Balendra V, Singh SK. Therapeutic potential of astaxanthin and superoxide dismutase in Alzheimer's disease. Open Biol 2021; 11:210013. [PMID: 34186009 PMCID: PMC8241491 DOI: 10.1098/rsob.210013] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Oxidative stress, the imbalance of the antioxidant system, results in an accumulation of neurotoxic proteins in Alzheimer's disease (AD). The antioxidant system is composed of exogenous and endogenous antioxidants to maintain homeostasis. Superoxide dismutase (SOD) is an endogenous enzymatic antioxidant that converts superoxide ions to hydrogen peroxide in cells. SOD supplementation in mice prevented cognitive decline in stress-induced cells by reducing lipid peroxidation and maintaining neurogenesis in the hippocampus. Furthermore, SOD decreased expression of BACE1 while reducing plaque burden in the brain. Additionally, Astaxanthin (AST), a potent exogenous carotenoid, scavenges superoxide anion radicals. Mice treated with AST showed slower memory decline and decreased depositions of amyloid-beta (Aβ) and tau protein. Currently, the neuroprotective potential of these supplements has only been examined separately in studies. However, a single antioxidant cannot sufficiently resist oxidative damage to the brain, therefore, a combinatory approach is proposed as a relevant therapy for ameliorating pathological changes in AD.
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Affiliation(s)
| | - Sandeep Kumar Singh
- Indian Scientific Education and Technology (ISET) Foundation, Lucknow 226002, India
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18
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Luo T, Lin D, Hao Y, Shi R, Wei C, Shen W, Wu A, Huang P. Ginkgolide B‑mediated therapeutic effects on perioperative neurocognitive dysfunction are associated with the inhibition of iNOS‑mediated production of NO. Mol Med Rep 2021; 24:537. [PMID: 34080648 PMCID: PMC8170229 DOI: 10.3892/mmr.2021.12176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 03/17/2021] [Indexed: 11/06/2022] Open
Abstract
Perioperative neurocognitive dysfunction (PND) is a prevalent neurological complication after anesthesia and surgery. Ginkgolide B (GB) has been suggested to improve lipopolysaccharide-induced learning and memory impairment. The present study aimed to investigate whether GB serves a protective role against PND by inhibiting inducible nitric oxide synthase (iNOS) and nitric oxide (NO). Abdominal surgery was performed on 10- to 12-week-old male C57BL/6 mice under isoflurane anesthesia. Prior to surgery, 1400W (a specific iNOS inhibitor) and GB were administered via intraperitoneal injection. Open field and fear conditioning tests were conducted to assess cognitive function on postoperative days 1 and 3. Biochemical assays were performed to evaluate alterations in NO, malondialdehyde (MDA) and superoxide dismutase (SOD) levels. Western blotting was performed to measure iNOS expression in the hippocampus on postoperative day 1. In addition, hematoxylin and eosin staining was performed to detect the neuronal morphology in the hippocampus. Following treatment with 1400W or GB, surgery-induced cognitive dysfunction was improved. Compared with the control group, the surgery group exhibited significant overproduction of iNOS and MDA in the hippocampus on postoperative day 1. Higher levels of NO were also detected in the hippocampus and prefrontal cortex of the surgery group on postoperative day 1. Furthermore, pretreatment with 1400W or GB significantly inhibited the surgery-induced elevation of NO and MDA in brain tissues. Moreover, GB pretreatment significantly inhibited surgery-induced downregulation of SOD and upregulation of iNOS. Surgery-induced increases in neuronal loss and the Bax/Bcl-2 ratio in the hippocampus were significantly inhibited by pretreatment with GB. Collectively, the results of the present study demonstrated that the therapeutic effects of GB on PND were associated with inhibition of iNOS-induced NO production, increased SOD, and the alleviation of neuronal loss and apoptosis.
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Affiliation(s)
- Ting Luo
- Department of Anesthesiology, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Dandan Lin
- Department of Anesthesiology, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Yanan Hao
- Department of Anesthesiology, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Rong Shi
- Department of Anesthesiology, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Changwei Wei
- Department of Anesthesiology, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Wenzhen Shen
- Department of Anesthesiology, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Anshi Wu
- Department of Anesthesiology, Beijing Chao‑Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Peili Huang
- School of Public Health, Capital Medical University, Beijing 100069, P.R. China
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Gong P, Wang D, Cui D, Yang Q, Wang P, Yang W, Chen F. Anti-aging function and molecular mechanism of Radix Astragali and Radix Astragali preparata via network pharmacology and PI3K/Akt signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 84:153509. [PMID: 33636579 DOI: 10.1016/j.phymed.2021.153509] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/26/2021] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Radix Astragali (RA) consists of the dried root of Astragalus membranaceus Bunge and is one of the most frequently used dietetic Chinese herbs to treat inflammation and neurodegenerative disease among other conditions. Radix Astragali preparata (RAP) is a medicinal form of RA. RA and RAP have been used as anti-aging agent, however, the mechanisms underlying their effects are still unclear. PURPOSE Considering the wide application of RA and RAP in clinical practice, it is necessary to identify the better product between the two and elucidate the molecular mechanism responsible for their anti-aging effects. STUDY DESIGN In this study, network pharmacology integrated with molecular biology techniques were employed to explore the possible mechanism of RA and RAP against aging. METHODS Aging animal models were constructed by exposure to D-galactose (D-gal), and the anti-aging effect of RA and RAP were determined based on behavior tests and histomorphological observation. Network pharmacology was performed to construct the "compound-target-pathway" network. Gene and protein expression of possible targets were validated and analyzed using qRT-PCR and Western blotting. RESULTS Treatment by RA and RAP could alleviate the symptoms of aging such as a decrease in body weight and organ indices, behavioral impairment, increased oxidative stress, weaken histopathological evaluation. The effect of RAP was more pronounced than that of RA in preventing aging process in a mouse model. The anti-aging effect of RA and RAP is associated with the balance of oxidative stress and activation of PI3K/Akt signaling pathway. CONCLUSION Using an integrated strategy of network pharmacology and molecular biology we attempted to elucidate the mechanisms of action of RA and RAP.
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Affiliation(s)
- Pin Gong
- School of Food and biotechnological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Danni Wang
- School of Food and biotechnological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Dandan Cui
- School of Food and biotechnological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Qian Yang
- School of Food and biotechnological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Peipei Wang
- School of Food and biotechnological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Wenjuan Yang
- School of Food and biotechnological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Fuxin Chen
- School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, China.
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Rosa AC, Corsi D, Cavi N, Bruni N, Dosio F. Superoxide Dismutase Administration: A Review of Proposed Human Uses. Molecules 2021; 26:1844. [PMID: 33805942 PMCID: PMC8037464 DOI: 10.3390/molecules26071844] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022] Open
Abstract
Superoxide dismutases (SODs) are metalloenzymes that play a major role in antioxidant defense against oxidative stress in the body. SOD supplementation may therefore trigger the endogenous antioxidant machinery for the neutralization of free-radical excess and be used in a variety of pathological settings. This paper aimed to provide an extensive review of the possible uses of SODs in a range of pathological settings, as well as describe the current pitfalls and the delivery strategies that are in development to solve bioavailability issues. We carried out a PubMed query, using the keywords "SOD", "SOD mimetics", "SOD supplementation", which included papers published in the English language, between 2012 and 2020, on the potential therapeutic applications of SODs, including detoxification strategies. As highlighted in this paper, it can be argued that the generic antioxidant effects of SODs are beneficial under all tested conditions, from ocular and cardiovascular diseases to neurodegenerative disorders and metabolic diseases, including diabetes and its complications and obesity. However, it must be underlined that clinical evidence for its efficacy is limited and consequently, this efficacy is currently far from being demonstrated.
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Affiliation(s)
- Arianna Carolina Rosa
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (D.C.); (N.C.); (F.D.)
| | - Daniele Corsi
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (D.C.); (N.C.); (F.D.)
| | - Niccolò Cavi
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (D.C.); (N.C.); (F.D.)
| | - Natascia Bruni
- Istituto Farmaceutico Candioli, Strada Comunale di None, 1, 10092 Beinasco, Italy;
| | - Franco Dosio
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (D.C.); (N.C.); (F.D.)
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Rouco L, Maneiro M. Neuroprotective effects of metalosalen complexes against oxidative stress. Neural Regen Res 2021; 16:121-122. [PMID: 32788463 PMCID: PMC7818873 DOI: 10.4103/1673-5374.286966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Lara Rouco
- Departamento de Química Inorgánica, Universidade de Santiago de Compostela, Lugo, Spain
| | - Marcelino Maneiro
- Departamento de Química Inorgánica, Universidade de Santiago de Compostela, Lugo, Spain
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Pursuing the Elixir of Life: In Vivo Antioxidative Effects of Manganosalen Complexes. Antioxidants (Basel) 2020; 9:antiox9080727. [PMID: 32785017 PMCID: PMC7465912 DOI: 10.3390/antiox9080727] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 07/31/2020] [Accepted: 08/07/2020] [Indexed: 12/15/2022] Open
Abstract
Manganosalen complexes are coordination compounds that possess a chelating salen-type ligand, a class of bis-Schiff bases obtained by condensation of salicylaldehyde and a diamine. They may act as catalytic antioxidants mimicking both the structure and the reactivity of the native antioxidant enzymes active site. Thus, manganosalen complexes have been shown to exhibit superoxide dismutase, catalase, and glutathione peroxidase activities, and they could potentially facilitate the scavenging of excess reactive oxygen species (ROS), thereby restoring the redox balance in damaged cells and organs. Initial catalytic studies compared the potency of these compounds as antioxidants in terms of rate constants of the chemical reactivity against ROS, giving catalytic values approaching and even exceeding that of the native antioxidative enzymes. Although most of these catalytic studies lack of biological relevance, subsequent in vitro studies have confirmed the efficiency of many manganosalen complexes in oxidative stress models. These synthetic catalytic scavengers, cheaper than natural antioxidants, have accordingly attracted intensive attention for the therapy of ROS-mediated injuries. The aim of this review is to focus on in vivo studies performed on manganosalen complexes and their activity on the treatment of several pathological disorders associated with oxidative damage. These disorders, ranging from the prevention of fetal malformations to the extension of lifespan, include neurodegenerative, inflammatory, and cardiovascular diseases; tissue injury; and other damages related to the liver, kidney, or lungs.
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23
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Berkowitz BA, Podolsky RH, Childers KL, Gow A, Schneider BL, Lloyd SC, Bosse KE, Conti AC, Roberts R, Berri AM, Graffice E, Sinan K, Eliwat W, Shen Y. Age-related murine hippocampal CA1 laminae oxidative stress measured in vivo by QUEnch-assiSTed (QUEST) MRI: impact of isoflurane anesthesia. GeroScience 2020; 42:563-574. [PMID: 31981008 PMCID: PMC7205849 DOI: 10.1007/s11357-020-00162-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 01/17/2020] [Indexed: 12/13/2022] Open
Abstract
Age-related impairments in spatial learning and memory often precede non-familial neurodegenerative disease. Ex vivo studies suggest that physiologic age-related oxidative stress in hippocampus area CA1 may contribute to prodromal spatial disorientation and to morbidity. Yet, conventional blood or cerebrospinal fluid assays appear insufficient for early detection or management of oxidative stress within CA1 sub-regions in vivo. Here, we address this biomarker problem using a non-invasive MRI index of CA1 laminae oxidative stress based on reduction in R1 (= 1/T1) after anti-oxidant administration. An R1 reduction reflects quenching of continuous and excessive production of endogenous paramagnetic free radicals. Careful motion-correction image acquisition, and avoiding repeated exposure to isoflurane, facilitates detection of hippocampus CA1 laminae oxidative stress with QUEnch-assiSTed (QUEST) MRI. Intriguingly, age- and isoflurane-related oxidative stress is localized to the stratum lacunosum of the CA1 region. Our data raise the possibility of using QUEST MRI and FDA-approved anti-oxidants to remediate spatial disorientation and later neurodegeneration with age in animals and humans.
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Affiliation(s)
- Bruce A Berkowitz
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, 540 E. Canfield, Detroit, MI, 48201, USA.
| | - Robert H Podolsky
- Beaumont Research Institute, Beaumont Health, Royal Oak, MI, 48073, USA
| | | | - Alexander Gow
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, 48201, USA
- Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, 48201, USA
- Department of Neurology, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Brandy L Schneider
- John D. Dingell VA Medical Center, Detroit, MI, 48201, USA
- Deptarment of Neurosurgery, School of Medicine, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Scott C Lloyd
- John D. Dingell VA Medical Center, Detroit, MI, 48201, USA
- Deptarment of Neurosurgery, School of Medicine, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Kelly E Bosse
- John D. Dingell VA Medical Center, Detroit, MI, 48201, USA
- Deptarment of Neurosurgery, School of Medicine, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Alana C Conti
- John D. Dingell VA Medical Center, Detroit, MI, 48201, USA
- Deptarment of Neurosurgery, School of Medicine, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Robin Roberts
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, 540 E. Canfield, Detroit, MI, 48201, USA
| | - Ali M Berri
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, 540 E. Canfield, Detroit, MI, 48201, USA
| | - Emma Graffice
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, 540 E. Canfield, Detroit, MI, 48201, USA
| | - Kenan Sinan
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, 540 E. Canfield, Detroit, MI, 48201, USA
| | - Waleed Eliwat
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University School of Medicine, 540 E. Canfield, Detroit, MI, 48201, USA
| | - Yimin Shen
- Department of Radiology, School of Medicine, Wayne State University School of Medicine, Detroit, MI, 48201, USA
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Ju S, Seo JY, Lee SK, Oh J, Kim JS. Oral administration of hydrolyzed red ginseng extract improves learning and memory capability of scopolamine-treated C57BL/6J mice via upregulation of Nrf2-mediated antioxidant mechanism. J Ginseng Res 2019; 45:108-118. [PMID: 33437162 PMCID: PMC7791004 DOI: 10.1016/j.jgr.2019.12.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 12/09/2019] [Accepted: 12/11/2019] [Indexed: 12/30/2022] Open
Abstract
Background Korean ginseng (Panax ginseng Meyer) contains a variety of ginsenosides that can be metabolized to a biologically active substance, compound K. Previous research showed that compound K could be enriched in the red ginseng extract (RGE) after hydrolysis by pectinase. The current study investigated whether the enzymatically hydrolyzed red ginseng extract (HRGE) containing a notable level of compound K has cognitive improving and neuroprotective effects. Methods A scopolamine-induced hypomnesic mouse model was subjected to behavioral tasks, such as the Y-maze, passive avoidance, and the Morris water maze tests. After sacrificing the mice, the brains were collected, histologically examined (hematoxylin and eosin staining), and the expressions of antioxidant proteins analyzed by western blot. Results Behavioral assessment indicated that the oral administration of HRGE at a dosage of 300 mg/kg body weight reversed scopolamine-induced learning and memory deficits. Histological examination demonstrated that the hippocampal damage observed in scopolamine-treated mouse brains was reduced by HRGE administration. In addition, HRGE administration increased the expression of nuclear-factor-E2-related factor 2 and its downstream antioxidant enzymes NAD(P)H:quinone oxidoreductase and heme oxygenase-1 in hippocampal tissue homogenates. An in vitro assay using HT22 mouse hippocampal neuronal cells demonstrated that HRGE treatment attenuated glutamate-induced cytotoxicity by decreasing the intracellular levels of reactive oxygen species. Conclusion These findings suggest that HRGE administration can effectively alleviate hippocampus-mediated cognitive impairment, possibly through cytoprotective mechanisms, preventing oxidative-stress-induced neuronal cell death via the upregulation of phase 2 antioxidant molecules.
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Key Words
- ABTS, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)
- BW, body weight
- CCK-8, cell counting kit-8
- Cognition
- DCF, dichlorofluorescein
- DCFH, 2,7-dichlorodihydrofluorescein
- DPPH, 2,2-diphenyl-1-picrylhydrazyl
- H&E, hematoxylin and eosin
- HO-1, heme oxygenase-1
- HRGE, hydrolyzed red ginseng extract
- KO, knockout
- Korean Red Ginseng
- Learning and memory
- NQO1, NAD(P):quinone oxidoreductase 1
- Neuroprotection
- Nrf2, nuclear-factor-E2-related factor 2
- PPD, protopanaxadiol
- Pectinase-mediated hydrolysis
- RGE, red ginseng extract
- ROS, reactive oxygen species
- WT, wild-type
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Affiliation(s)
- Sunghee Ju
- School of Food Science and Biotechnology (BK21 Plus), Kyungpook National University, Daegu, Republic of Korea
| | - Ji Yeon Seo
- School of Food Science and Biotechnology (BK21 Plus), Kyungpook National University, Daegu, Republic of Korea
| | - Seung Kwon Lee
- Ginseng Biotech Research Team, Ilhwa Co. Ltd, Guri, Gyeonggi-do, Republic of Korea
| | - Jisun Oh
- Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, Republic of Korea
| | - Jong-Sang Kim
- School of Food Science and Biotechnology (BK21 Plus), Kyungpook National University, Daegu, Republic of Korea.,Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, Republic of Korea
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25
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Azman KF, Zakaria R. Honey as an antioxidant therapy to reduce cognitive ageing. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2019; 22:1368-1377. [PMID: 32133053 PMCID: PMC7043876 DOI: 10.22038/ijbms.2019.14027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This paper reviews the potential role of honey as a therapeutic antioxidant to reduce oxidative stress and improve cognitive ageing. All articles indexed to PubMed Central (PMC) were searched using the following key words: honey, antioxidant, memory and ageing. Honey is a natural insect-derived product with therapeutic, medicinal and nutritional values. Antioxidant properties of honey quench biologically-circulating reactive oxygen species (ROS) and counter oxidative stress while restoring the cellular antioxidant defense system. Antioxidant properties of honey may complement its nootropic effects to reduce cognitive ageing.
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Affiliation(s)
- Khairunnuur Fairuz Azman
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kota Bharu, Kelantan, Malaysia
| | - Rahimah Zakaria
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kota Bharu, Kelantan, Malaysia ,Corresponding author: Rahimah Zakaria. Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kota Bharu, Kelantan, Malaysia. Tel: +609-7676156;
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26
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Tan B, Babur E, Koşar B, Varol S, Dursun N, Süer C. Age-dependent evaluation of long-term depression responses in hyperthyroid rats: Possible roles of oxidative intracellular redox status. Brain Res 2019; 1720:146314. [DOI: 10.1016/j.brainres.2019.146314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 06/25/2019] [Accepted: 06/27/2019] [Indexed: 10/26/2022]
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Pan Y, Xu J, Jin P, Yang Q, Zhu K, You M, Chen M, Hu F. Royal Jelly Ameliorates Behavioral Deficits, Cholinergic System Deficiency, and Autonomic Nervous Dysfunction in Ovariectomized Cholesterol-Fed Rabbits. Molecules 2019; 24:molecules24061149. [PMID: 30909491 PMCID: PMC6470943 DOI: 10.3390/molecules24061149] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 03/14/2019] [Accepted: 03/18/2019] [Indexed: 12/17/2022] Open
Abstract
Estrogen deficiency after menopause is associated with autonomic nervous changes, leading to memory impairment and increased susceptibility to Alzheimer's disease (AD). Royal jelly (RJ) from honeybees (Apis mellifera) has estrogenic activity. Here, we investigated whether RJ can improve behavior, cholinergic and autonomic nervous function in ovariectomized (OVX) cholesterol-fed rabbits. OVX rabbits on high-cholesterol diet were administered with RJ for 12 weeks. The results showed that RJ could significantly improve the behavioral deficits of OVX cholesterol-fed rabbits and image structure of the brain. RJ reduced body weight, blood lipid, as well as the levels of amyloid-beta (Aβ), acetylcholinesterase (AchE), and malonaldehyde (MDA) in the brain. Moreover, RJ also increased the activities of choline acetyltransferase (ChAT) and superoxide dismutase (SOD) in the brain, and enhanced heart rate variability (HRV) and Baroreflex sensitivity (BRS) in OVX cholesterol-fed rabbits. Furthermore, RJ was also shown to reduce the content of Evans blue and the expression levels of Aβ, beta-site APP cleaving enzyme 1(BACE1), and receptor for advanced glycation end products (RAGE), and increase the expression level of LDL(low density lipoprotein) receptor-related protein 1 (LRP-1) in the brain. Our findings suggested that RJ has beneficial effects in neurological disorders of postmenopausal women, which were associated with reducing cholesterol and Aβ deposition, enhancing the estrogen levels and the activities of cholinergic and antioxidant systems, and ameliorating the blood⁻brain barrier (BBB) permeability and restoring autonomic nervous system.
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Affiliation(s)
- Yongming Pan
- Comparative medical Research Institute, Experimental Animal Research Center, Zhejiang Chinese Medical University, Hangzhou 310053, China.
- College of Animal Sciences, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
| | - Jianqin Xu
- Comparative medical Research Institute, Experimental Animal Research Center, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Ping Jin
- The third clinical medical college, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Qinqin Yang
- Comparative medical Research Institute, Experimental Animal Research Center, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Keyan Zhu
- Comparative medical Research Institute, Experimental Animal Research Center, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Mengmeng You
- College of Animal Sciences, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
| | - Minli Chen
- Comparative medical Research Institute, Experimental Animal Research Center, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Fuliang Hu
- College of Animal Sciences, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China.
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Benkafadar N, François F, Affortit C, Casas F, Ceccato JC, Menardo J, Venail F, Malfroy-Camine B, Puel JL, Wang J. ROS-Induced Activation of DNA Damage Responses Drives Senescence-Like State in Postmitotic Cochlear Cells: Implication for Hearing Preservation. Mol Neurobiol 2019; 56:5950-5969. [PMID: 30693443 PMCID: PMC6614136 DOI: 10.1007/s12035-019-1493-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 01/11/2019] [Indexed: 12/20/2022]
Abstract
In our aging society, age-related hearing loss (ARHL) has become a major socioeconomic issue. Reactive oxygen species (ROS) may be one of the main causal factors of age-related cochlear cell degeneration. We examined whether ROS-induced DNA damage response drives cochlear cell senescence and contributes to ARHL from the cellular up to the system level. Our results revealed that sublethal concentrations of hydrogen peroxide (H2O2) exposure initiated a DNA damage response illustrated by increased γH2AX and 53BP1 expression and foci formation mainly in sensory hair cells, together with increased levels of p-Chk2 and p53. Interestingly, postmitotic cochlear cells exposed to H2O2 displayed key hallmarks of senescent cells, including dramatically increased levels of p21, p38, and p-p38 expression, concomitant with decreased p19 and BubR1 expression and positive senescence-associated β-galactosidase labeling. Importantly, the synthetic superoxide dismutase/catalase mimetic EUK-207 attenuated H2O2-induced DNA damage and senescence phenotypes in cochlear cells in vitro. Furthermore, systemic administration of EUK-207 reduced age-related loss of hearing and hair cell degeneration in senescence-accelerated mouse-prone 8 (SAMP8) mice. Altogether, these findings highlight that ROS-induced DNA damage responses drive cochlear cell senescence and contribute to accelerated ARHL. EUK-207 and likely other antioxidants with similar mechanisms of action could potentially postpone cochlear aging and prevent ARHL in humans.
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Affiliation(s)
- Nesrine Benkafadar
- INSERM - UMR 1051, Institut des Neurosciences de Montpellier, 80 rue Augustin Fliche, 34295, Montpellier, France
- Université Montpellier, 34295, Montpellier, France
| | - Florence François
- INSERM - UMR 1051, Institut des Neurosciences de Montpellier, 80 rue Augustin Fliche, 34295, Montpellier, France
- Université Montpellier, 34295, Montpellier, France
| | - Corentin Affortit
- INSERM - UMR 1051, Institut des Neurosciences de Montpellier, 80 rue Augustin Fliche, 34295, Montpellier, France
- Université Montpellier, 34295, Montpellier, France
| | - François Casas
- INRA, UMR 866 Différenciation Cellulaire et Croissance, 34060, Montpellier, France
| | - Jean-Charles Ceccato
- INSERM - UMR 1051, Institut des Neurosciences de Montpellier, 80 rue Augustin Fliche, 34295, Montpellier, France
- Université Montpellier, 34295, Montpellier, France
| | - Julien Menardo
- INSERM - UMR 1051, Institut des Neurosciences de Montpellier, 80 rue Augustin Fliche, 34295, Montpellier, France
- Université Montpellier, 34295, Montpellier, France
| | - Frederic Venail
- INSERM - UMR 1051, Institut des Neurosciences de Montpellier, 80 rue Augustin Fliche, 34295, Montpellier, France
- Université Montpellier, 34295, Montpellier, France
| | | | - Jean-Luc Puel
- INSERM - UMR 1051, Institut des Neurosciences de Montpellier, 80 rue Augustin Fliche, 34295, Montpellier, France
- Université Montpellier, 34295, Montpellier, France
| | - Jing Wang
- INSERM - UMR 1051, Institut des Neurosciences de Montpellier, 80 rue Augustin Fliche, 34295, Montpellier, France.
- Université Montpellier, 34295, Montpellier, France.
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Squadrone S, Brizio P, Mancini C, Abete MC, Brusco A. Altered homeostasis of trace elements in the blood of SCA2 patients. J Trace Elem Med Biol 2018; 47:111-114. [PMID: 29544796 DOI: 10.1016/j.jtemb.2018.02.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 02/06/2018] [Accepted: 02/08/2018] [Indexed: 01/03/2023]
Abstract
Spinocerebellar ataxia type 2 (SCA2) is a neurological disorder characterized by cerebellar dysfunction. The possible association between metals and neurodegenerative diseases is under constant investigation, with particular focus on their involvement in oxidative stress and their potential role as biomarkers of these pathologies. Whole blood samples of SCA2 patients and of healthy individuals were subjected to multi-elemental analysis by inductively coupled plasma-mass spectrometry (ICP-MS). Reduced levels of manganese and copper were found in SCA2 patients, while zinc and vanadium concentrations were significantly higher in patients compared to controls. Copper, manganese and zinc are cofactors of many enzymes (such as superoxide dismutase, SOD) involved in the cellular antioxidant response, whereas vanadium is a transition metal able to produce reactive radicals. A marked decrease of the antioxidant response has been previously reported in SCA2 patients. We suggest that an unbalance of transitional elements in the blood may reflect altered antioxidant homeostasis in SCA2 patients and could constitute a future peripheral biomarker for this disease. In addition, we suggest a possible role of vanadium in the altered lipid metabolism of SCA2 patients.
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Affiliation(s)
- Stefania Squadrone
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, via Bologna 148, 10154 Torino, Italy.
| | - Paola Brizio
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, via Bologna 148, 10154 Torino, Italy
| | - Cecilia Mancini
- University of Torino, Department of Medical Sciences, 10126 Torino, Italy
| | - Maria Cesarina Abete
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, via Bologna 148, 10154 Torino, Italy
| | - Alfredo Brusco
- University of Torino, Department of Medical Sciences, 10126 Torino, Italy; Città della Salute e della Scienza University Hospital, Medical Genetics Unit, 10126 Torino, Italy
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30
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Glutathione depletion: Starting point of brain metabolic stress, neuroinflammation and cognitive impairment in rats. Brain Res Bull 2018; 137:120-131. [DOI: 10.1016/j.brainresbull.2017.11.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 11/22/2017] [Accepted: 11/23/2017] [Indexed: 11/18/2022]
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Thioredoxin is not a marker for treatment-resistance depression but associated with cognitive function: An rTMS study. Prog Neuropsychopharmacol Biol Psychiatry 2018; 80:322-328. [PMID: 28442424 DOI: 10.1016/j.pnpbp.2017.04.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 04/14/2017] [Indexed: 12/28/2022]
Abstract
Elevated oxidative stress is known to play an important role in development of depression and cognitive dysfunction. To date, thioredoxin (TRX), an antioxidant protein, has been investigated as a marker for psychiatric disorders such as schizophrenia, bipolar disorder and autism but its relationship with depression is yet to be unknown. The aim of this study is to detect the TRX levels in patients with treatment-resistant depression (TRD), analyse the effect of rTMS (repetitive transcranial magnetic stimulation) application on TRX levels and display the relationship of TRX with cognitive areas. This study included 27 treatment-resistant unipolar depression patients and 29 healthy subjects. Patients were evaluated by Hamilton Depression Scale (HDRS), Hamilton Anxiety Scale (HARS) and Montreal Cognitive Assessment (MoCA) before and after rTMS application. 23 of TRD patients were applied high-frequency rTMS over left DLPFC for 2 to 4weeks and plasma TRX levels of patients and healthy subjects were measured. No significant difference was determined between the TRX levels of patients and healthy subjects (p>0.05). After rTMS application there were significant decrease in severity of depression (p<0.001) and anxiety (p<0.001), and explicit improvement in cognitive areas (delayed memory, visual-spatial/executive abilities and language points) (all p<0.05). No difference was detected in TRX levels of the patients after rTMS application (p>0.005). High language scores of the patients were found to be associated with high TRX levels (p<0.005). Our study indicates that TRX levels cannot be used as a marker for TRD or rTMS treatment in TRD. In spite of this TRX levels have a positive correlation with language functions of the patients of TRD. More extensive studies are required to clarify the mechanism of action of TRX and the effect of TRX on cognitive functions.
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Chen H, Lv K, Dai Z, Ji G, Wang T, Wang Y, Zhang Y, Kan G, Li Y, Qu L. Intramuscular injection of mechano growth factor E domain peptide regulated expression of memory-related sod, miR-134 and miR-125b-3p in rat hippocampus under simulated weightlessness. Biotechnol Lett 2016; 38:2071-2080. [PMID: 27623796 DOI: 10.1007/s10529-016-2210-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 08/31/2016] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To investigate the expression of memory-related antioxidant genes and miRNAs under simulated weightlessness and the regulation of mechano growth factor (MGF) E domain, the peptide preventing nerve damage. RESULTS Igf-iea and mgf mRNA levels, expression of antioxidant genes sod1 and sod2 and levels of miR-134 and miR-125b-3p increased in rat hippocampus after 14 days tail suspension to simulate weightlessness which was inhibited with intramuscular injection of E domain peptide. Therefore, administration of MGF E domain peptide could reverse increased expressions of memory-related igf-iea, mgf, sod1, sod2, miR-134 and miR-125b-3p in rat hippocampus under simulated weightlessness. CONCLUSIONS MGF may regulate the redox state and miRNA-targeted NR-CREB signaling, and intramuscular injection may be the alternative administration because of its safety, convenience and ability to pass through the blood brain barrier.
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Affiliation(s)
- Hailong Chen
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China.,Department of Health Technology Research and Development, Space Institute of Southern China (Shenzhen), Shamiao Road 4#, Pingdi Street, Longgang District, Shenzhen, 518117, China
| | - Ke Lv
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China
| | - Zhongquan Dai
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China
| | - Guohua Ji
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China
| | - Tingmei Wang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China
| | - Yanli Wang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China
| | - Yongliang Zhang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China
| | - Guanghan Kan
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China
| | - Yinghui Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China.
| | - Lina Qu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, 5132-23#, Beiqing Road 26#, Haidian District, Beijing, 100094, China.
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Raber J, Davis MJ, Pfankuch T, Rosenthal R, Doctrow SR, Moulder JE. Mitigating effect of EUK-207 on radiation-induced cognitive impairments. Behav Brain Res 2016; 320:457-463. [PMID: 27789343 DOI: 10.1016/j.bbr.2016.10.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 10/21/2016] [Accepted: 10/23/2016] [Indexed: 10/20/2022]
Abstract
The brain could be exposed to irradiation as part of a nuclear accident, radiological terrorism (dirty bomb scenario) or a medical radiological procedure. In the context of accidents or terrorism, there is considerable interest in compounds that can mitigate radiation-induced injury when treatment is initiated a day or more after the radiation exposure. As it will be challenging to determine the radiation exposure an individual has received within a relatively short time frame, it is also critical that the mitigating agent does not negatively affect individuals, including emergency workers, who might be treated, but who were not exposed. Alterations in hippocampus-dependent cognition often characterize radiation-induced cognitive injury. The catalytic ROS scavenger EUK-207 is a member of the class of metal-containing salen manganese (Mn) complexes that suppress oxidative stress, including in the mitochondria, and have been shown to mitigate radiation dermatitis, promote wound healing in irradiated skin, and mitigate vascular injuries in irradiated lungs. As the effects of EUK-207 against radiation injury in the brain are not known, we assessed the effects of EUK-207 on sham-irradiated animals and the ability of EUK-207 to mitigate radiation-induced cognitive injury. The day following irradiation or sham-irradiation, the mice started to receive EUK-207 and were cognitively tested 3 months following exposure. Mice irradiated at a dose of 15Gy showed cognitive impairments in the water maze probe trial. EUK-207 mitigated these impairments while not affecting cognitive performance of sham-irradiated mice in the water maze probe trial. Thus, EUK-207 has attractive properties and should be considered an ideal candidate to mitigate radiation-induced cognitive injury.
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Affiliation(s)
- J Raber
- Department of Behavioral Neuroscience, L470, Oregon Health and Science University, Portland, OR 97239, USA; Departments of Neurology and Radiation Medicine, Division of Neuroscience, ONPRC, L470, Oregon Health and Science University, Portland, Oregon 97239, USA.
| | - M J Davis
- Department of Behavioral Neuroscience, L470, Oregon Health and Science University, Portland, OR 97239, USA
| | - T Pfankuch
- Department of Behavioral Neuroscience, L470, Oregon Health and Science University, Portland, OR 97239, USA
| | - R Rosenthal
- Pulmonary Center, Boston University School of Medicine, MA 02215, USA
| | - S R Doctrow
- Pulmonary Center, Boston University School of Medicine, MA 02215, USA
| | - J E Moulder
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
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Singh P, Singh D, Goel RK. Protective effect on phenytoin-induced cognition deficit in pentylenetetrazol kindled mice: A repertoire of Glycyrrhiza glabra flavonoid antioxidants. PHARMACEUTICAL BIOLOGY 2016; 54:1209-1218. [PMID: 26154520 DOI: 10.3109/13880209.2015.1063673] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Glycyrrhiza glabra L. (Febaceae) has been widely used in traditional medicine and scientifically explored for its anticonvulsant and memory improving potential. OBJECTIVE The objective of this study is to investigate the effect of flavonoid rich fraction of G. glabra root extract against phenytoin-induced cognition deficit in pentylenetetrazol (PTZ) kindled mice. MATERIALS AND METHODS The ethyl acetate fraction was initially screened in different in vitro free radical scavenging assays. For in vivo studies, the kindled mice in different groups were given 15 d post-treatment with phenytoin (25 mg/kg; p.o.) per se or in combination with varying doses of the fraction (5, 10, and 15 mg/kg; p.o.). Seizure severity score and cognitive functions were accessed using Racine's scale and passive shock avoidance paradigm, respectively on every 5th d after a PTZ challenge dose (35 mg/kg; i.p.). At the end of study, the animals were scarified for cerebral biochemistry. RESULTS The fraction showed marked antioxidant activity indicated by low IC50 values in DPPH (20.9 µg/mL), nitric oxide radical scavenging (195.2 µg/mL), and capacity of hydrogen peroxide scavenging (3.4 µg/mL) assays. Treatment with phenytoin per se and along with the flavonoid rich fraction showed significant reduction in seizure severity score as compared to vehicle control. The combined-treated groups also showed improved cognitive functions indicated by reduced number of mistakes and increased step-down latency in passive shock avoidance paradigm. CONCLUSION From the results, it can be concluded that the flavonoid rich fraction in combination with phenytoin reduces seizure severity and improve cognitive functions in PTZ-kindled mice.
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Affiliation(s)
- Paramdeep Singh
- a Department of Pharmacology , Chitkara College of Pharmacy, Chitkara University , Patiala , Punjab , India and
- b Department of Pharmaceutical Sciences and Drug Research , Punjabi University , Patiala , Punjab , India
| | - Damanpreet Singh
- b Department of Pharmaceutical Sciences and Drug Research , Punjabi University , Patiala , Punjab , India
| | - Rajesh K Goel
- b Department of Pharmaceutical Sciences and Drug Research , Punjabi University , Patiala , Punjab , India
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Vágási CI, Vincze O, Pătraş L, Osváth G, Marton A, Bărbos L, Sol D, Pap PL. Large-brained birds suffer less oxidative damage. J Evol Biol 2016; 29:1968-1976. [DOI: 10.1111/jeb.12920] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 06/10/2016] [Accepted: 06/13/2016] [Indexed: 01/21/2023]
Affiliation(s)
- C. I. Vágási
- MTA-DE “Lendület” Behavioural Ecology Research Group; Department of Evolutionary Zoology; University of Debrecen; Debrecen Hungary
- Evolutionary Ecology Group; Hungarian Department of Biology and Ecology; Babeş-Bolyai University; Cluj Napoca Romania
| | - O. Vincze
- MTA-DE “Lendület” Behavioural Ecology Research Group; Department of Evolutionary Zoology; University of Debrecen; Debrecen Hungary
- Evolutionary Ecology Group; Hungarian Department of Biology and Ecology; Babeş-Bolyai University; Cluj Napoca Romania
| | - L. Pătraş
- Department of Molecular Biology and Biotechnology; Babeş-Bolyai University; Cluj Napoca Romania
| | - G. Osváth
- Museum of Zoology; Babeş-Bolyai University; Cluj Napoca Romania
| | - A. Marton
- Evolutionary Ecology Group; Hungarian Department of Biology and Ecology; Babeş-Bolyai University; Cluj Napoca Romania
- ’Milvus Group’ Bird and Nature Protection Association; Tîrgu Mureș Romania
| | - L. Bărbos
- Evolutionary Ecology Group; Hungarian Department of Biology and Ecology; Babeş-Bolyai University; Cluj Napoca Romania
- ’Milvus Group’ Bird and Nature Protection Association; Tîrgu Mureș Romania
| | - D. Sol
- CREAF; Cerdanyola del Vallès Spain
- CSIC; Cerdanyola del Vallès Spain
| | - P. L. Pap
- MTA-DE “Lendület” Behavioural Ecology Research Group; Department of Evolutionary Zoology; University of Debrecen; Debrecen Hungary
- Evolutionary Ecology Group; Hungarian Department of Biology and Ecology; Babeş-Bolyai University; Cluj Napoca Romania
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Ahn JH, Chen BH, Shin BN, Lee TK, Cho JH, Kim IH, Park JH, Lee JC, Tae HJ, Lee CH, Won MH, Lee YL, Choi SY, Hong S. Comparison of catalase immunoreactivity in the hippocampus between young, adult and aged mice and rats. Mol Med Rep 2016; 14:851-6. [PMID: 27221506 PMCID: PMC4929834 DOI: 10.3892/mmr.2016.5300] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 05/05/2016] [Indexed: 12/02/2022] Open
Abstract
Catalase (CAT) is an important antioxidant enzyme and is crucial in modulating synaptic plasticity in the brain. In this study, CAT expression as well as neuronal distribution was compared in the hippocampus among young, adult and aged mice and rats. Male ICR mice and Sprague Dawley rats were used at postnatal month (PM) 1, PM 6 and PM 24 as the young, adult and aged groups, respectively (n=14/group). CAT expression was examined by immunohistochemistry and western blot analysis. In addition, neuronal distribution was examined by NeuN immunohistochemistry. In the present study, the mean number of NeuN-immunoreactive neurons was marginally decreased in mouse and rat hippocampi during aging, although this change was not identified to be significantly different. However, CAT immunoreactivity was significantly increased in pyramidal and granule neurons in the adult mouse and rat hippocampi and was significantly decreased in the aged mouse and rat hippocampi compared with that in the young animals. CAT protein levels in the hippocampus were also lowest in the aged mouse and rat hippocampus. These results indicate that CAT expression is significantly decreased in the hippocampi of aged animals and decreased CAT expression may be closely associated with aging.
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Affiliation(s)
- Ji Hyeon Ahn
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Bai Hui Chen
- Department of Physiology, College of Medicine, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Bich-Na Shin
- Department of Physiology, College of Medicine, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Tae-Kyeong Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Jeong Hwi Cho
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - In Hye Kim
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Joon Ha Park
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Jae-Chul Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Hyun-Jin Tae
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Choong-Hyun Lee
- Department of Pharmacy, College of Pharmacy, Dankook University, Cheonan, Chungcheongnam-do 31116, Republic of Korea
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Yun Lyul Lee
- Department of Physiology, College of Medicine, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Soo Young Choi
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Seongkweon Hong
- Department of Surgery, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
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Cahill-Smith S, Li JM. Oxidative stress, redox signalling and endothelial dysfunction in ageing-related neurodegenerative diseases: a role of NADPH oxidase 2. Br J Clin Pharmacol 2015; 78:441-53. [PMID: 25279404 DOI: 10.1111/bcp.12357] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Chronic oxidative stress and oxidative damage of the cerebral microvasculature and brain cells has become one of the most convincing theories in neurodegenerative pathology. Controlled oxidative metabolism and redox signalling in the central nervous system are crucial for maintaining brain function; however, excessive production of reactive oxygen species and enhanced redox signalling damage neurons. While several enzymes and metabolic processes can generate intracellular reactive oxygen species in the brain, recently an O2−-generating enzyme, NADPH oxidase 2 (Nox2), has emerged as a major source of oxidative stress in ageing-related vascular endothelial dysfunction and neurodegenerative diseases. The currently available inhibitors of Nox2 are not specific, and general antioxidant therapy is not effective in the clinic; therefore, insights into the mechanism of Nox2 activation and its signalling pathways are needed for the discovery of novel drug targets to prevent or treat these neurodegenerative diseases. This review summarizes the recent developments in understanding the mechanisms of Nox2 activation and redox-sensitive signalling pathways and biomarkers involved in the pathophysiology of the most common neurodegenerative diseases, such as ageing-related mild cognitive impairment, Alzheimer's disease and Parkinson's disease.
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Squadrone S, Brizio P, Mancini C, Pozzi E, Cavalieri S, Abete MC, Brusco A. Blood metal levels and related antioxidant enzyme activities in patients with ataxia telangiectasia. Neurobiol Dis 2015; 81:162-7. [PMID: 25882094 DOI: 10.1016/j.nbd.2015.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 04/04/2015] [Accepted: 04/07/2015] [Indexed: 10/23/2022] Open
Abstract
Transition metals are cofactors for a wide range of vital enzymes and are directly or indirectly involved in the response against reactive oxygen species (ROS), which can damage cellular components. Their altered homeostasis has been studied in neurodegenerative disorders such as Alzheimer's disease (AD), Parkinson's disease (PD) and amyotrophic lateral sclerosis (ALS), but no data are available on rarer conditions. We aimed at studying the role of essential trace elements in ataxia telangiectasia (A-T), a rare form of pediatric autosomal recessive cerebellar ataxia with altered antioxidant response. We found an increased level of copper (Cu, p=0.0002) and a reduced level of zinc (Zn, p=0.0002) in the blood of patients (n. 16) compared to controls, using inductively coupled plasma mass spectrometry (ICP-MS). Other trace elements involved in the oxidative stress response, such as manganese (Mn) and selenium (Se), were unaltered. Cu/Zn-dependent superoxide dismutase (SOD1) was shown to have a 30% reduction in gene expression and 40% reduction in enzyme activity upon analysis of lymphoblastoid cell lines of patients (Student's t-test, p=0.0075). We also found a 30% reduction of Mn-SOD (SOD2; Student's t-test, p=0.02), probably due to a feedback regulatory loop between the two enzymes. The expression of antioxidant enzymes, such as erythrocyte glutathione peroxidase (GPX1), and SOD2 was unaltered, whereas catalase (CAT) was increased in A-T cells, both at the mRNA level and in terms of enzyme activity (~25%). Enhanced CAT expression can be attributed to the high ROS status, which induces CAT transcription. These results suggest that alterations in essential trace elements and their related enzymes may play a role in the pathogenesis of A-T, although we cannot conclude if altered homeostasis is a direct effect of A-T mutated genes (ATM). Altered homeostasis of trace elements may be more prevalent in neurodegenerative diseases than previously thought, and it may represent both a biomarker and a generic therapeutic target for different disorders with the common theme of altered antioxidant enzyme responses associated with an unbalance of metals.
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Affiliation(s)
- Stefania Squadrone
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, via Bologna 148, Torino 10154, Italy.
| | - Paola Brizio
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, via Bologna 148, Torino 10154, Italy
| | - Cecilia Mancini
- Department of Medical Sciences, University of Torino, Torino 10126, Italy
| | - Elisa Pozzi
- Department of Medical Sciences, University of Torino, Torino 10126, Italy
| | - Simona Cavalieri
- Department of Medical Sciences, University of Torino, Torino 10126, Italy; Città della Salute e della Scienza University Hospital, Medical Genetics Unit, Torino 10126, Italy
| | - Maria Cesarina Abete
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, via Bologna 148, Torino 10154, Italy
| | - Alfredo Brusco
- Department of Medical Sciences, University of Torino, Torino 10126, Italy; Città della Salute e della Scienza University Hospital, Medical Genetics Unit, Torino 10126, Italy
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Jiang ZJ, Wang CY, Xie X, Yang JF, Huang JN, Cao ZP, Xiao P, Li CH. Schizandrin ameliorates ovariectomy-induced memory impairment, potentiates neurotransmission and exhibits antioxidant properties. Br J Pharmacol 2015; 172:2479-92. [PMID: 25573619 DOI: 10.1111/bph.13078] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/18/2014] [Accepted: 12/25/2014] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND AND PURPOSE Schizandrin (SCH) has been reported to prevent or reduce learning and memory defects. However, it is not known whether SCH ameliorates cognitive impairments induced by oestrogen deficiency. In the present study, we investigated the effect of SCH on memory in ovariectomized (OVX) and non-OVX rats. EXPERIMENTAL APPROACH A passive avoidance test was used to evaluate the effect of SCH on memory. Field EPSPs were recorded in hippocampal slices using an electrophysiological method. In OVX rats, biochemical parameters in the bilateral hippocampus were measured; these included superoxide dismutase (SOD), malondialdehyde (MDA) and AChE. Also, the number of NADPH-diaphorase (NADPH-d) positive neurons was counted by NADPH-d histochemistry staining technique. KEY RESULTS Oral SCH improved the memory and facilitated the induction of long-term potentiation in non-OVX and OVX rats; this effect was more obvious in OVX rats. Similarly, SCH perfusion enhanced synaptic transmission in hippocampal slices from both non-OVX and OVX rats. However, SCH perfusion reduced the ratio of paired-pulse facilitation only in OVX but not in non-OVX rats. In addition, SCH decreased AChE activity and MDA level and increased SOD activity and the number of NADPH-d-positive neurons in OVX rats. CONCLUSIONS AND IMPLICATIONS SCH improves memory in OVX rats and its potential mechanisms may include a reduction in the loss of hippocampal NADPH-d positive neurons, an increase of antioxidant properties and a potentiation of synaptic transmission that possibly involves to enhance cholinergic function. Overall, our findings indicate that SCH has potential as a therapeutic strategy for the cognitive dysfunctions associated with the menopause.
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Affiliation(s)
- Zhong-Jiao Jiang
- School of Life Science, South China Normal University, Guangzhou, China
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Ritzel RM, Patel AR, Pan S, Crapser J, Hammond M, Jellison E, McCullough LD. Age- and location-related changes in microglial function. Neurobiol Aging 2015; 36:2153-63. [PMID: 25816747 DOI: 10.1016/j.neurobiolaging.2015.02.016] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Revised: 02/08/2015] [Accepted: 02/13/2015] [Indexed: 11/26/2022]
Abstract
Inflammation in the central nervous system (CNS) is primarily regulated by microglia. No longer considered a homogenous population, microglia display a high degree of heterogeneity, immunological diversity and regional variability in function. Given their low rate of self-renewal, the microenvironment in which microglia reside may play an important role in microglial senescence. This study examines age-related changes in microglia in the brain and spinal cord. Using ex-vivo flow cytometry analyses, functional assays were performed to assess changes in microglial morphology, oxidative stress, cytokine production, and phagocytic activity with age in both the brain and spinal cord. The regional CNS environment had a significant effect on microglial activity with age. Blood-CNS barrier permeability was greater in the aging spinal cord compared with aging brain; this was associated with increased tissue cytokine levels. Aged microglia had deficits in phagocytosis at baseline and after stimulus-induced activation. The identification of age-specific, high scatter microglia together with the use of ex-vivo functional analyses provides the first functional characterization of senescent microglia. Age and regional-specificity of CNS disease should be taken into consideration when developing immune-modulatory treatments.
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Affiliation(s)
- Rodney M Ritzel
- Department of Neurology, University of Connecticut Health Center, Farmington, CT, USA
| | - Anita R Patel
- Department of Neurology, University of Connecticut Health Center, Farmington, CT, USA
| | - Sarah Pan
- Department of Neurology, University of Connecticut Health Center, Farmington, CT, USA
| | - Joshua Crapser
- Department of Neurology, University of Connecticut Health Center, Farmington, CT, USA
| | - Matt Hammond
- Department of Neurology, University of Connecticut Health Center, Farmington, CT, USA
| | - Evan Jellison
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| | - Louise D McCullough
- Department of Neurology, University of Connecticut Health Center, Farmington, CT, USA.
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Zhang T, Tian X, Wang Q, Tong Y, Wang H, Li Z, Li L, Zhou T, Zhan R, Zhao L, Sun Y, Fan D, Lu L, Zhang J, Jin Y, Xiao W, Guo X, Chui D. Surgical stress induced depressive and anxiety like behavior are improved by dapsone via modulating NADPH oxidase level. Neurosci Lett 2015; 585:103-8. [DOI: 10.1016/j.neulet.2014.11.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 11/03/2014] [Accepted: 11/26/2014] [Indexed: 01/31/2023]
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Role of melatonin in traumatic brain injury and spinal cord injury. ScientificWorldJournal 2014; 2014:586270. [PMID: 25587567 PMCID: PMC4283270 DOI: 10.1155/2014/586270] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/11/2014] [Accepted: 11/14/2014] [Indexed: 01/03/2023] Open
Abstract
Brain and spinal cord are implicated in incidences of two of the most severe injuries of central nervous system (CNS). Traumatic brain injury (TBI) is a devastating neurological deficit involving primary and secondary injury cascades. The primary and secondary mechanisms include complex consequences of activation of proinflammatory cytokines, cerebral edema, upregulation of NF-κβ, disruption of blood-brain barrier (BBB), and oxidative stress. Spinal cord injury (SCI) includes primary and secondary injury cascades. Primary injury leads to secondary injury in which generation of free radicals and oxidative or nitrative damage play an important pathophysiological role. The indoleamine melatonin is a hormone secreted or synthesized by pineal gland in the brain which helps to regulate sleep and wake cycle. Melatonin has been shown to be a versatile hormone having antioxidative, antiapoptotic, neuroprotective, and anti-inflammatory properties. It has a special characteristic of crossing BBB. Melatonin has neuroprotective role in the injured part of the CNS after TBI and SCI. A number of studies have successfully shown its therapeutic value as a neuroprotective agent in the treatment of neurodegenerative diseases. Here in this review we have compiled the literature supporting consequences of CNS injuries, TBI and SCI, and the protective role of melatonin in it.
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Increased macromolecular damage due to oxidative stress in the neocortex and hippocampus of WNIN/Ob, a novel rat model of premature aging. Neuroscience 2014; 269:256-64. [DOI: 10.1016/j.neuroscience.2014.03.040] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 03/18/2014] [Accepted: 03/19/2014] [Indexed: 01/24/2023]
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Kash JC, Xiao Y, Davis AS, Walters KA, Chertow DS, Easterbrook JD, Dunfee RL, Sandouk A, Jagger BW, Schwartzman LM, Kuestner RE, Wehr NB, Huffman K, Rosenthal RA, Ozinsky A, Levine RL, Doctrow SR, Taubenberger JK. Treatment with the reactive oxygen species scavenger EUK-207 reduces lung damage and increases survival during 1918 influenza virus infection in mice. Free Radic Biol Med 2014; 67:235-47. [PMID: 24140866 PMCID: PMC3927540 DOI: 10.1016/j.freeradbiomed.2013.10.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 10/07/2013] [Accepted: 10/08/2013] [Indexed: 12/16/2022]
Abstract
The 1918 influenza pandemic caused over 40 million deaths worldwide, with 675,000 deaths in the United States alone. Studies in several experimental animal models showed that 1918 influenza virus infection resulted in severe lung pathology associated with dysregulated immune and cell death responses. To determine if reactive oxygen species produced by host inflammatory responses play a central role in promoting severity of lung pathology, we treated 1918 influenza virus-infected mice with the catalytic catalase/superoxide dismutase mimetic, salen-manganese complex EUK-207 beginning 3 days postinfection. Postexposure treatment of mice infected with a lethal dose of the 1918 influenza virus with EUK-207 resulted in significantly increased survival and reduced lung pathology without a reduction in viral titers. In vitro studies also showed that EUK-207 treatment did not affect 1918 influenza viral replication. Immunohistochemical analysis showed a reduction in the detection of the apoptosis marker cleaved caspase-3 and the oxidative stress marker 8-oxo-2'-deoxyguanosine in lungs of EUK-207-treated animals compared to vehicle controls. High-throughput sequencing and RNA expression microarray analysis revealed that treatment resulted in decreased expression of inflammatory response genes and increased lung metabolic and repair responses. These results directly demonstrate that 1918 influenza virus infection leads to an immunopathogenic immune response with excessive inflammatory and cell death responses that can be limited by treatment with the catalytic antioxidant EUK-207.
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Affiliation(s)
- John C Kash
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Yongli Xiao
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - A Sally Davis
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | | | - Daniel S Chertow
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA
| | - Judith D Easterbrook
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Rebecca L Dunfee
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Aline Sandouk
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Brett W Jagger
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Louis M Schwartzman
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | | | - Nancy B Wehr
- Laboratory of Biochemistry, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Karl Huffman
- Pulmonary Center, Department of Medicine, Boston University Medical School, Boston, MA 02118, USA
| | - Rosalind A Rosenthal
- Pulmonary Center, Department of Medicine, Boston University Medical School, Boston, MA 02118, USA
| | | | - Rodney L Levine
- Laboratory of Biochemistry, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Susan R Doctrow
- Pulmonary Center, Department of Medicine, Boston University Medical School, Boston, MA 02118, USA
| | - Jeffery K Taubenberger
- Laboratory of Infectious Diseases, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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Abstract
Evolution has favored the utilization of dioxygen (O2) in the development of complex multicellular organisms. O2 is actually a toxic mutagenic gas that is highly oxidizing and combustible. It is thought that plants are largely to blame for polluting the earth's atmosphere with O2 owing to the development of photosynthesis by blue-green algae over 2 billion years ago. The rise of the plants and atmospheric O2 levels placed evolutionary stress on organisms to adapt or become extinct. This implies that all the surviving creatures on our planet are mutants that have adapted to the "abnormal biology" of O2. Much of the adaptation to the presence of O2 in biological systems comes from well-coordinated antioxidant and repair systems that focus on converting O2 to its most reduced form, water (H2O), and the repair and replacement of damaged cellular macromolecules. Biological systems have also harnessed O2's reactive properties for energy production, xenobiotic metabolism, and host defense and as a signaling messenger and redox modulator of a number of cell signaling pathways. Many of these systems involve electron transport systems and offer many different mechanisms by which antioxidant therapeutics can alternatively produce an antioxidant effect without directly scavenging oxygen-derived reactive species. It is likely that each agent will have a different set of mechanisms that may change depending on the model of oxidative stress, organ system, or disease state. An important point is that all biological processes of aerobes have coevolved with O2 and this creates a Pandora's box for trying to understand the mechanism(s) of action of antioxidants being developed as therapeutic agents.
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Affiliation(s)
- Brian J Day
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA.
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46
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Flynn JM, Melov S. SOD2 in mitochondrial dysfunction and neurodegeneration. Free Radic Biol Med 2013; 62:4-12. [PMID: 23727323 PMCID: PMC3811078 DOI: 10.1016/j.freeradbiomed.2013.05.027] [Citation(s) in RCA: 226] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 05/15/2013] [Accepted: 05/17/2013] [Indexed: 12/15/2022]
Abstract
The brain is a highly metabolically active tissue that critically relies on oxidative phosphorylation as a means for maintaining energy. One result of this process is the production of potentially damaging radicals such as the superoxide anion (O2(-)). Superoxide has the capacity to damage components of the electron transport chain and other cellular constituents. Eukaryotic systems have evolved defenses against such damaging moieties, the chief member of which is superoxide dismutase (SOD2), an enzyme that efficiently converts superoxide to the less reactive hydrogen peroxide (H2O2), which can freely diffuse across the mitochondrial membrane. Loss of SOD2 activity can result in numerous pathological phenotypes in metabolically active tissues, particularly within the central nervous system. We review SOD2's potential involvement in the progression of neurodegenerative diseases such as stroke and Alzheimer and Parkinson diseases, as well as its potential role in "normal" age-related cognitive decline. We also examine in vivo models of endogenous oxidative damage based upon the loss of SOD2 and associated neurological phenotypes in relation to human neurodegenerative disorders.
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Affiliation(s)
- James M Flynn
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Simon Melov
- Buck Institute for Research on Aging, Novato, CA 94945, USA.
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Zhang XY, Chen DC, Xiu MH, Tan YL, Yang FD, Zhang LY, Zhang LY, Haile CN, Kosten TR. Clinical symptoms and cognitive impairment associated with male schizophrenia relate to plasma manganese superoxide dismutase activity: a case-control study. J Psychiatr Res 2013; 47:1049-53. [PMID: 23611682 DOI: 10.1016/j.jpsychires.2013.03.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 03/08/2013] [Accepted: 03/13/2013] [Indexed: 02/05/2023]
Abstract
Several lines of evidence suggest that excessive reactive oxygen species-induced oxidative damage may underlie cognitive impairment in psychiatric disorders. A growing body of evidence show that oxidative damage may relate to the range of cognitive deficits associated with schizophrenia. In this study we examine one of the primary antioxidant defense enzymes manganese superoxide dismutase (MnSOD), and whether it relates to cognitive deficits in schizophrenia. We recruited 185 chronic male schizophrenia patients and 132 male controls and compared results from the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) and plasma MnSOD activity between groups. Symptom severity in patients with schizophrenia was assessed with the Positive and Negative Syndrome Scale (PANSS). Our results showed that MnSOD activities were significantly lower in patients than controls (p<0.05). Cognitive scores on the RBANS and nearly all of its five subscales (all p<0.001) except for the Visuospatial/Constructional index were significantly lower in schizophrenia patients than normal controls. MnSOD was negatively correlated with the general psychopathology subscale of PANSS, PANSS total score, positive symptoms and RBANS total score in patients with schizophrenia. Our findings add to growing evidence that oxidative stress may be involved in the psychopathology of male schizophrenia, and its associated cognitive impairment.
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Affiliation(s)
- Xiang Yang Zhang
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Michael E. DeBakey VA Medical Center, Houston,TX 77030 , USA.
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Davari S, Talaei S, Alaei H, salami M. Probiotics treatment improves diabetes-induced impairment of synaptic activity and cognitive function: Behavioral and electrophysiological proofs for microbiome–gut–brain axis. Neuroscience 2013; 240:287-96. [DOI: 10.1016/j.neuroscience.2013.02.055] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 01/24/2013] [Accepted: 02/22/2013] [Indexed: 12/16/2022]
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Wagener FADTG, Carels CE, Lundvig DMS. Targeting the redox balance in inflammatory skin conditions. Int J Mol Sci 2013; 14:9126-67. [PMID: 23624605 PMCID: PMC3676777 DOI: 10.3390/ijms14059126] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 04/10/2013] [Accepted: 04/16/2013] [Indexed: 12/17/2022] Open
Abstract
Reactive oxygen species (ROS) can be both beneficial and deleterious. Under normal physiological conditions, ROS production is tightly regulated, and ROS participate in both pathogen defense and cellular signaling. However, insufficient ROS detoxification or ROS overproduction generates oxidative stress, resulting in cellular damage. Oxidative stress has been linked to various inflammatory diseases. Inflammation is an essential response in the protection against injurious insults and thus important at the onset of wound healing. However, hampered resolution of inflammation can result in a chronic, exaggerated response with additional tissue damage. In the pathogenesis of several inflammatory skin conditions, e.g., sunburn and psoriasis, inflammatory-mediated tissue damage is central. The prolonged release of excess ROS in the skin can aggravate inflammatory injury and promote chronic inflammation. The cellular redox balance is therefore tightly regulated by several (enzymatic) antioxidants and pro-oxidants; however, in case of chronic inflammation, the antioxidant system may be depleted, and prolonged oxidative stress occurs. Due to the central role of ROS in inflammatory pathologies, restoring the redox balance forms an innovative therapeutic target in the development of new strategies for treating inflammatory skin conditions. Nevertheless, the clinical use of antioxidant-related therapies is still in its infancy.
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Affiliation(s)
- Frank A. D. T. G. Wagener
- Authors to whom correspondence should be addressed; E-Mails: (F.A.D.T.G.W.); (D.M.S.L.); Tel.: +31-24-3614082 (F.A.D.T.G.W.); Fax: +31-24-3540631 (F.A.D.T.G.W. & D.M.S.L.)
| | | | - Ditte M. S. Lundvig
- Authors to whom correspondence should be addressed; E-Mails: (F.A.D.T.G.W.); (D.M.S.L.); Tel.: +31-24-3614082 (F.A.D.T.G.W.); Fax: +31-24-3540631 (F.A.D.T.G.W. & D.M.S.L.)
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Jelveh S, Kaspler P, Bhogal N, Mahmood J, Lindsay PE, Okunieff P, Doctrow SR, Bristow RG, Hill RP. Investigations of antioxidant-mediated protection and mitigation of radiation-induced DNA damage and lipid peroxidation in murine skin. Int J Radiat Biol 2013; 89:618-27. [DOI: 10.3109/09553002.2013.782450] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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