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Wang X, Memon AA, Hedelius A, Grundberg A, Sundquist J, Sundquist K. Circulating mitochondrial long non-coding 7S RNA in primary health care patients with depression/anxiety. J Affect Disord 2024; 349:101-106. [PMID: 38163568 DOI: 10.1016/j.jad.2023.12.053] [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: 08/10/2023] [Revised: 11/27/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND The significant role of long non-coding 7S RNA in controlling mitochondrial transcription highlights its importance in mitochondrial function. Considering the suggested connection between mitochondrial dysfunction and the onset of mental disorders, this study aimed to explore the potential involvement of 7S RNA in the context of depression/anxiety. RESULTS A total of 181 patients in primary health care (age 20-64 years) with depression/anxiety and 59 healthy controls were included in the study. 7S RNA was measured using quantitative real-time PCR in plasma samples collected before (baseline) and after 8 weeks of treatment (mindfulness or cognitive-based behavioral therapy). Upon adjustment for age and sex, the baseline plasma levels of 7S RNA were significantly higher in patients than in healthy controls (p < 0.001). Notably, post-treatment, there was a significant reduction in 7S RNA levels (p = 0.03). These changes in 7S RNA were related to the treatment response, as indicated by HADS-D (Hospital Anxiety and Depression Scale) scores (ß = -0.04, p = 0.04), even after accounting for baseline scores and other cofounders. CONCLUSION The findings of this study indicate an association between plasma 7S RNA levels and depression/anxiety, as well as treatment response. While further confirmatory analyses are necessary, plasma 7S RNA holds promise as a potential predictive biomarker for both depression/anxiety and the treatment response within these disorders.
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Affiliation(s)
- Xiao Wang
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden.
| | - Ashfaque A Memon
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden
| | - Anna Hedelius
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden
| | - Anton Grundberg
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden
| | - Jan Sundquist
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden; Department of Family Medicine and Community Health, Department of Population Health Science and Policy Icahn School of Medicine at Mount Sinai, New York, USA; Center for Community-based Healthcare Research and Education (CoHRE), Department of Functional Pathology, School of Medicine, Shimane University, Japan
| | - Kristina Sundquist
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden; Department of Family Medicine and Community Health, Department of Population Health Science and Policy Icahn School of Medicine at Mount Sinai, New York, USA; Center for Community-based Healthcare Research and Education (CoHRE), Department of Functional Pathology, School of Medicine, Shimane University, Japan
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Wang X, Memon AA, Palmér K, Hedelius A, Sundquist J, Sundquist K. The association of mitochondrial DNA copy number with incident mental disorders in women: A population-based follow-up study. J Affect Disord 2022; 308:111-115. [PMID: 35427715 DOI: 10.1016/j.jad.2022.04.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/21/2022] [Accepted: 04/10/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND Available evidence suggests that mitochondrial DNA copy number (mtDNA-CN) may differ among patients with mental disorders compared to the general population. However, whether mtDNA-CN is independently associated with the subsequent incidence of mental disorders remains unclear. MATERIAL AND METHODS We used droplet digital PCR to measure the absolute mtDNA-CN in DNA samples obtained from a population-based follow-up study, which included a total of 2354 middle-aged women (52-63 years) who were free of mental disorders at baseline. After 17 years (median) of follow-up, 727 participants were diagnosed with mental disorders. RESULTS In the univariate Cox regression, lower baseline mtDNA-CN (mtDNA-CN < 117) was associated with a higher risk of mental disorders (HR = 1.16, p = 0.047). In addition, smoking, marital status and sleeping quality were associated with both mtDNA-CN and mental disorders. After adjusting for these variables, the association between mtDNA-CN and mental disorders decreased and became non-significant (HR = 1.07, p = 0.36). Stratification of data according to the subtype of mental disorders, showed that low mtDNA-CN was associated with a higher risk of alcohol or drug use disorders (HR = 1.82, p = 0.045 after adjusting). CONCLUSION In the present study, we could not find any independent association between mtDNA-CN blood and the most common mental disorders in a population-based follow-up study of Swedish women, except for alcohol and drug use disorders. The use of blood mtDNA-CN as a biomarker of mental disorders, in addition to other risk factors, needs to be further examined in future studies.
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Affiliation(s)
- Xiao Wang
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden.
| | - Ashfaque A Memon
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden
| | - Karolina Palmér
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden
| | - Anna Hedelius
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden
| | - Jan Sundquist
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden; Department of Family Medicine and Community Health, Department of Population Health Science and Policy Icahn School of Medicine at Mount Sinai, New York, USA; Center for Community-based Healthcare Research and Education (CoHRE), Department of Functional Pathology, School of Medicine, Shimane University, Japan
| | - Kristina Sundquist
- Center for Primary Health Care Research, Lund University/Region Skåne, Malmö 20502, Sweden; Department of Family Medicine and Community Health, Department of Population Health Science and Policy Icahn School of Medicine at Mount Sinai, New York, USA; Center for Community-based Healthcare Research and Education (CoHRE), Department of Functional Pathology, School of Medicine, Shimane University, Japan
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3
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Pradhan LK, Sahoo PK, Chauhan NR, Das SK. Temporal exposure to chronic unpredictable stress induces precocious neurobehavioral deficits by distorting neuromorphology and glutathione biosynthesis in zebrafish brain. Behav Brain Res 2021; 418:113672. [PMID: 34785260 DOI: 10.1016/j.bbr.2021.113672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 12/14/2022]
Abstract
Modelling of chronic stress conditions in experimental animals and its neuropsychiatric outcomes has been well documented in literature. Zebrafish (Danio rerio) by exhibiting significant genetic and epidemiological similarities with human beings, has now emerged as a promising animal model of translational research. In this line, risk assessment following exposure to chronic unpredictable stress (CUS) towards neurobehavioral response and neuromorphology of sensitive brain region in zebrafish is the prime objective of the present study. With the existing knowledge on CUS in affecting diverse neurobehavioral aspects, we were primarily interested in whether this neurobehavioral transformation is an outcome of altered glutathione biosynthesis in zebrafish. We were also concerned about whether the precocious neurobehavioral transformation has been linked to altered neuromorphology in the periventricular grey zone (PGZ) of the zebrafish brain. Our basic findings showed that CUS itself represented as a universal factor in altering native bottom-dwelling and scototaxis behaviour of zebrafish. Our findings also backing the argument that CUS itself represented a collective stress regimen by altering the brain glutathione biosynthesis in zebrafish. Correspondingly, a temporal transformation in CUS instigated augmentation in neuronal pyknosis and chromatin condensation were observed in PGZ of the zebrafish brain. Collectively, these findings designate that CUS induced temporal neurobehavioral transformation is an outcome of augmented oxidative stress and neuromorphological alteration in the zebrafish brain. However, the underlying mechanism of such neuropathological manifestation associated with CUS might provide novel insight towards the development of prophylactic/therapeutic intervention to counter such co-morbid behavioral alteration.
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Affiliation(s)
- Lilesh Kumar Pradhan
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751003, India
| | - Pradyumna Kumar Sahoo
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751003, India
| | - Nishant Ranjan Chauhan
- Infectious Disease Biology Division, Institute of Life Sciences, Bhubaneswar 751023, India
| | - Saroj Kumar Das
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751003, India.
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Karanikas E. Psychologically Traumatic Oxidative Stress; A Comprehensive Review of Redox Mechanisms and Related Inflammatory Implications. PSYCHOPHARMACOLOGY BULLETIN 2021; 51:65-86. [PMID: 34887600 PMCID: PMC8601764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The organism's energy requirements for homeostatic balance are covered by the redox mechanisms. Yet in case of psychologically traumatic stress, allostatic regulations activate both pro-oxidant and antioxidant molecules as well as respective components of the inflammatory system. Thus a new setpoint of dynamic interactions among redox elements is reached. Similarly, a multifaceted interplay between redox and inflammatory fields is activated with the mediation of major effector systems such as the immune system, Hypothalamic-Pituitary-Adrenal axis, kynurenine, and the glycaemic regulatory one. In case of sustained and/or intense traumatic stress the prophylactic antioxidant components are inadequate to provide the organism with neuroprotection finally culminating in Oxidative Stress and subsequently to cellular apoptosis. In parallel multiple inflammatory systems trigger and/or are triggered by the redox systems in tight fashion so that the causation sequence appears obscure. This exhaustive review aims at the comprehension of the interaction among components of the redox system as well as to the collection of disperse findings relative to the redox-inflammatory interplay in the context of traumatic stress so that new research strategies could be developed.
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Affiliation(s)
- Evangelos Karanikas
- Karanikas, Department of Psychiatry, General Military Hospital, Thessaloniki, Greece
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Faborode OS, Yusuf IO, Okpe PO, Okudaje AO, Onasanwo SA. Exposure to prolonged unpredictable light impairs spatial memory via induction of oxidative stress and tumor necrosis factor-alpha in rats. J Basic Clin Physiol Pharmacol 2021; 33:355-362. [PMID: 33873260 DOI: 10.1515/jbcpp-2020-0160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 01/23/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The human body physiology rapidly changes and adapt to several environmental stimuli, including light. Abnormal artificial light exposures have been shown to affect sleep cycle, cognition, and mood. Although studies have reported inconsistent effects of short-term or constant long-term light exposures, human exposures to artificial lights occur at varying, unpredictable times and duration daily. Here, we studied the effects of long-term unpredictable light exposure on learning, memory, oxidative status, and associated cytokines in rats. METHODS Artificial lighting was provided using an array of white light-emitting diodes coupled to a microcontroller that switches them on or off at unpredictable times and duration (light intensity = 200 ± 20 lx). Within the last eight days of 40 days exposure, animals were subjected to open field test, Morris water maze, and novel object recognition behavioral paradigms. Brain levels of malondialdehyde (MDA), superoxide dismutase (SOD), catalase, reduced glutathione (GSH), glutathione S-transferase (GST), tumor necrosis factor-alpha (TNF-α), and vascular endothelial growth factor (VEGF) were assayed. RESULTS Exposed rats showed impaired spatial learning and memory (p<0.05), but no changes in object recognition memory or locomotor activity. Oxidative stress analyses also revealed significant changes in the concentrations of MDA, SOD, catalase, and GSH levels (p<0.05), not GST. Similarly, there was an increased TNF-α expression (p<0.05), not VEGF. CONCLUSIONS We conclude that oxidative stress is involved in memory impairment in rats exposed to prolonged unpredictable lights, which again suggests the detrimental effects of extended light exposure on the nervous system.
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Affiliation(s)
- Oluwaseun S Faborode
- Department of Human Physiology, College of Health Sciences, Bingham University, Karu, Nigeria.,Neuroscience and Oral Physiology Unit, Department of Physiology, University of Ibadan, Ibadan, Nigeria
| | - Issa O Yusuf
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester,MA, USA
| | - Paschal O Okpe
- Department of Human Physiology, College of Health Sciences, Bingham University, Karu, Nigeria
| | - Ann O Okudaje
- Department of Human Physiology, College of Health Sciences, Bingham University, Karu, Nigeria
| | - Samuel A Onasanwo
- Neuroscience and Oral Physiology Unit, Department of Physiology, University of Ibadan, Ibadan, Nigeria
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Al Mamun A, Wu Y, Monalisa I, Jia C, Zhou K, Munir F, Xiao J. Role of pyroptosis in spinal cord injury and its therapeutic implications. J Adv Res 2021; 28:97-109. [PMID: 33364048 PMCID: PMC7753222 DOI: 10.1016/j.jare.2020.08.004] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/05/2020] [Accepted: 08/08/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Currently, spinal cord injury (SCI) is a pathological incident that triggers several neuropathological conditions, leading to the initiation of neuronal damage with several pro-inflammatory mediators' release. However, pyroptosis is recognized as a new programmed cell death mechanism regulated by the stimulation of caspase-1 and/or caspase-11/-4/-5 signaling pathways with a series of inflammatory responses. AIM Our current review concisely summarizes the potential role of pyroptosis-regulated programmed cell death in SCI, according to several molecular and pathophysiological mechanisms. This review also highlights the targeting of pyroptosis signaling pathways and inflammasome components and its therapeutic implications for the treatment of SCI. KEY SCIENTIFIC CONCEPTS Multiple pieces of evidence have illustrated that pyroptosis plays significant roles in cell swelling, plasma membrane lysis, chromatin fragmentation and intracellular pro-inflammatory factors including IL-18 and IL-1β release. In addition, pyroptosis is directly mediated by the recently discovered family of pore-forming protein known as GSDMD. Current investigations have documented that pyroptosis-regulated cell death plays a critical role in the pathogenesis of multiple neurological disorders as well as SCI. Our narrative article suggests that inhibiting the pyroptosis-regulated cell death and inflammasome components could be a promising therapeutic approach for the treatment of SCI in the near future.
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Key Words
- AIM2, Absent in melanoma 2
- ASC, apoptosis-associated speck-like protein
- ATP, Adenosine triphosphate
- BBG, Brilliant blue G
- CCK-8, Cell Counting Kit-8
- CNS, central nervous system
- CO, Carbon monoxide
- CORM-3, Carbon monoxide releasing molecle-3
- Caspase-1
- Cx43, Connexin 43
- DAMPs, Damage-associated molecular patterns
- DRD1, Dopamine Receptor D1
- ECH, Echinacoside
- GSDMD, Gasdermin D
- Gal-3, Galectin-3
- H2O2, Hydrogen peroxide
- HO-1, Heme oxygenase-1
- IL-18, Interleukin-18
- IL-1β, Interleukin-1 beta
- IRE1, Inositol requiring enzyme 1
- JOA, Japanese orthopedics association
- LPS, Lipopolysaccharide
- NDI, Neck data index
- NF-κB, Nuclear factor-kappa B
- NLRP1, NOD-like receptor protein 1
- NLRP1b, NOD-like receptor protein 1b
- NLRP3
- NLRP3, Nucleotide-binding domain-like receptor protein 3
- Neuroinflammation
- Nrf2, Nuclear factor erythroid 2-related factor 2
- OPCs, Oligodendrocyte progenitor cells
- PAMPs, Pathogen-associated molecular patterns
- PRRs, Pattern recognition receptors
- Pyroptosis
- ROS, Reactive oxygen species
- Spinal cord injury
- TLR4, Toll-like receptor 4
- TXNIP, Thioredoxin-interacting protein
- Therapeutic implications
- double stranded DNAIR, Ischemia reperfusion
- si-RNA, Small interfering RNA
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Affiliation(s)
- Abdullah Al Mamun
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035 Zhejiang Province, China
| | - Yanqing Wu
- Institute of Life Sciences, Wenzhou University, Wenzhou, 325035 Zhejiang Province, China
| | - Ilma Monalisa
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
| | - Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang Province, China
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang Province, China
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035 Zhejiang Province, China
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Janšáková K, Belica I, Rajčániová E, Rajčáni J, Kyselicová K, Celušáková H, Laznibatová J, Ostatníková D. The acute effect of psychosocial stress on the level of oxidative stress in children. Int J Psychophysiol 2021; 161:86-90. [PMID: 33454319 DOI: 10.1016/j.ijpsycho.2021.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 11/26/2020] [Accepted: 01/08/2021] [Indexed: 01/13/2023]
Abstract
The effect of chronic stress on oxidative stress (OS) is commonly discussed while the effect of acute stress situation is not fully examined yet. The present study was aimed to analyse whether acute psychosocial strain causes changes in OS and antioxidant status. Unstimulated saliva was collected from 46 healthy prepubertal children during the control and stress day. On the stress day, collection was performed before and after a stress situation induced by the Trier social stress test. Saliva collection during the control day imitated the stress day without the stress strain. Samples were used for analysis of lipid peroxidation, thiobarbituric acid reactive substances (TBARS), advanced glycation end products (AGEs) and markers of antioxidant status, total antioxidant capacity (TAC) and ferric reducing antioxidant power (FRAP). On the stress day, increased level of FRAP was observed in the second saliva collection in comparison with the first collection. Within the same day, no significant changes in the levels of TBARS, AGEs and TAC were observed in samples taken before and after stress strain. Significantly higher levels of TBARS were observed on stress day in comparison to control day. In summary, acute psychosocial stress caused increase of FRAP during the stress day. TBARS did not increase during the stress day in the second sample but it was higher compared to the control day. None of the interactions with gender were statistically significant. It appears the short-term exposure to stress could potentially stimulate antioxidant activity.
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Affiliation(s)
- Katarína Janšáková
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Slovakia.
| | - Ivan Belica
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Slovakia; Research Institute for Child Psychology and Pathopsychology, Bratislava, Slovakia
| | - Eva Rajčániová
- Research Institute for Child Psychology and Pathopsychology, Bratislava, Slovakia; Department of Psychology, Faculty of Philosophy and Arts, Trnava University in Trnava, Slovakia
| | - Jakub Rajčáni
- Department of Psychology, Faculty of Arts, Comenius University in Bratislava, Slovakia
| | - Klaudia Kyselicová
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Slovakia
| | - Hana Celušáková
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Slovakia
| | - Jolana Laznibatová
- Research Institute for Child Psychology and Pathopsychology, Bratislava, Slovakia
| | - Daniela Ostatníková
- Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, Slovakia
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Al Mamun A, Monalisa I, Tul Kubra K, Akter A, Akter J, Sarker T, Munir F, Wu Y, Jia C, Afrin Taniya M, Xiao J. Advances in immunotherapy for the treatment of spinal cord injury. Immunobiology 2020; 226:152033. [PMID: 33321368 DOI: 10.1016/j.imbio.2020.152033] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 10/19/2020] [Accepted: 11/18/2020] [Indexed: 12/11/2022]
Abstract
Spinal cord injury (SCI) is a leading cause of morbidity and disability in the world. Over the past few decades, the exact molecular mechanisms describing secondary, persistent injuries, as well as primary and transient injuries, have attracted massive attention to the clinicians and researchers. Recent investigations have distinctly shown the critical roles of innate and adaptive immune responses in regulating sterile neuroinflammation and functional outcomes after SCI. In past years, some promising advances in immunotherapeutic options have efficaciously been identified for the treatment of SCI. In our narrative review, we have mainly focused on the new therapeutic strategies such as the maturation and apoptosis of immune cells by several agents, mesenchymal stem cells (MSCs) as well as multi-factor combination therapy, which have recently provided novel ideas and prospects for the future treatment of SCI. This article also illustrates the latest progress in clarifying the potential roles of innate and adaptive immune responses in SCI, the progression and specification of prospective immunotherapy and outstanding issues in the area.
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Affiliation(s)
- Abdullah Al Mamun
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035 Zhejiang Province, China
| | - Ilma Monalisa
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
| | - Khadija Tul Kubra
- Department of Pharmacy, University of Development Alternative, Dhaka 1209, Bangladesh
| | - Afroza Akter
- Department of Microbiology, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Jaheda Akter
- Department of Pharmacy, International Islamic University Chittagong, Kumira, Chattogram-4318, Chittagong, Bangladesh
| | - Tamanna Sarker
- Department of Pharmacy, University of Asia Pacific, Dhaka 1205, Bangladesh
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China
| | - Yanqing Wu
- Institute of Life Sciences, Wenzhou University, Wenzhou, 325035 Zhejiang Province, China
| | - Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang Province, China
| | - Masuma Afrin Taniya
- Department of Life Sciences, School of Environment and Life Sciences, Independent University, Bangladesh, Dhaka 1229, Bangladesh
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035 Zhejiang Province, China.
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Dopamine D1 receptor agonist A68930 attenuates acute kidney injury by inhibiting NLRP3 inflammasome activation. J Pharmacol Sci 2020; 143:226-233. [DOI: 10.1016/j.jphs.2020.04.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 12/22/2022] Open
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10
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Peña-Bautista C, Casas-Fernández E, Vento M, Baquero M, Cháfer-Pericás C. Stress and neurodegeneration. Clin Chim Acta 2020; 503:163-168. [PMID: 31987795 DOI: 10.1016/j.cca.2020.01.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 12/13/2022]
Abstract
Neurodegenerative diseases are a great concern because of aging worldwide population. Despite substantial effort to advance our understanding of the etiology and potential treatment of neurodegeneration, there remains a paucity of information with respect to this complex disease process. Interestingly, stress has been implicated among the potential mechanisms implicated in neurodegenerative pathology. Given the increase in chronic stress in modern society, this premise warrants further investigation. The aim of this review is to evaluate the influence of stress on neurodegeneration, the effect of neurodegenerative diseases diagnosis on stress, and therapeutic strategies for neurodegenerative diseases with a special focus on stress reduction. Neurodegenerative disorders such as Alzheimer's, Parkinson's and Huntington's Disease showed an acceleration in disease progression and a worsening of symptoms under stress. Some therapies (e.g., yoga, meditation) focused on reducing stress showed beneficial effects against neurodegeneration. Nevertheless, more studies are necessary in order to completely understand the implications of stress in neurodegeneration and the usefulness of stress reduction in the treatment thereof.
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Affiliation(s)
| | | | - Máximo Vento
- Health Research Institute La Fe, Valencia, Spain
| | - Miguel Baquero
- Division of Neurology, University and Polytechnic Hospital La Fe, Valencia, Spain
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11
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Almogbel E, Aladhadh AM, Almotyri BH, Alhumaid AF, Rasheed N. Stress Associated Alterations in Dietary Behaviours of Undergraduate Students of Qassim University, Saudi Arabia. Open Access Maced J Med Sci 2019; 7:2182-2188. [PMID: 31456849 PMCID: PMC6698097 DOI: 10.3889/oamjms.2019.571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 06/22/2019] [Accepted: 06/25/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: Psychological stress associated eating habits among public health have now become a global concern. AIM: This study was undertaken to investigate the levels of psychological stress among undergraduate students of Qassim University and to explore the stress associated alterations in their eating habits. METHODS: This is a cross-sectional survey conducted on 614 undergraduate students of Qassim University, Saudi Arabia. A self-administered questionnaire was used, which included questions on socio-demography and eating habits. Level of stress was measured by a standardised questionnaire highlights the levels of non-chronic stimulation through difficulty relaxing, nervous arousal and being easily upset/agitated, irritable / over-reactive and impatient. RESULTS: Our results show that 28.2% of total participants suffered from some extent of stress. Among stressed participants, 17.3%, 49.1%, 24.8% and 8.7% of participants suffered from mild, moderate, severe and extremely severe stress, respectively. Stressed participants were more preferred to eat junk foods such as fast foods, snacks and beverages as compared with unstressed participants (p < 0.05) and the junk food preference was increased with the increase of stress levels. Moreover, non-stressed participants preferred more healthy foods such as vegetarian food, fresh fruits as compared with stressed participants (p < 0.05). Taste and easy to access were the main reasons for the preference of junk foods by the stressed participants. CONCLUSIONS: This is the first comprehensive study from Saudi Arabia to show stress associated dietary alterations in undergraduates of Qassim University. Data concluded that most of the young adults followed a healthy eating pattern, but a significant number from them were affected by stress. Therefore, specific intervention programs are strongly recommended for the reduction of stress and to improve their quality of life.
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Affiliation(s)
- Ebtehal Almogbel
- Department of Family Medicine, College of Medicine, Qassim University, Buraidah, KSA
| | | | | | - Ahmad F Alhumaid
- Research Center, College of Medicine, Qassim University, Buraidah, KSA
| | - Naila Rasheed
- Department of Medical Biochemistry, College of Medicine, Qassim University, Buraidah, KSA
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12
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Turkson S, Kloster A, Hamilton PJ, Neigh GN. Neuroendocrine drivers of risk and resilience: The influence of metabolism & mitochondria. Front Neuroendocrinol 2019; 54:100770. [PMID: 31288042 PMCID: PMC6886586 DOI: 10.1016/j.yfrne.2019.100770] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/20/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023]
Abstract
The manifestation of risk versus resilience has been considered from varying perspectives including genetics, epigenetics, early life experiences, and type and intensity of the challenge with which the organism is faced. Although all of these factors are central to determining risk and resilience, the current review focuses on what may be a final common pathway: metabolism. When an organism is faced with a perturbation to the environment, whether internal or external, appropriate energy allocation is essential to resolving the divergence from equilibrium. This review examines the potential role of metabolism in the manifestation of stress-induced neural compromise. In addition, this review details the current state of knowledge on neuroendocrine factors which are poised to set the tone of the metabolic response to a systemic challenge. The goal is to provide an essential framework for understanding stress in a metabolic context and appreciation for key neuroendocrine signals.
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Affiliation(s)
- Susie Turkson
- Department of Anatomy & Neurobiology, Virginia Commonwealth University, Richmond, VA, United States
| | - Alix Kloster
- Department of Anatomy & Neurobiology, Virginia Commonwealth University, Richmond, VA, United States
| | - Peter J Hamilton
- Department of Anatomy & Neurobiology, Virginia Commonwealth University, Richmond, VA, United States
| | - Gretchen N Neigh
- Department of Anatomy & Neurobiology, Virginia Commonwealth University, Richmond, VA, United States.
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Petrovic R, Puskas L, Jevtic Dozudic G, Stojkovic T, Velimirovic M, Nikolic T, Zivkovic M, Djorovic DJ, Nenadovic M, Petronijevic N. NADPH oxidase and redox status in amygdala, hippocampus and cortex of male Wistar rats in an animal model of post-traumatic stress disorder. Stress 2018; 21:494-502. [PMID: 29804499 DOI: 10.1080/10253890.2018.1474874] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Post-traumatic stress disorder (PTSD) is a highly prevalent and impairing disorder. Oxidative stress is implicated in its pathogenesis. Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase is an important source of free radicals. The aim of the study was to assess oxidative stress parameters, activities of respiratory chain enzymes, and the expression of NADPH oxidase subunits (gp91phox, p22phox, and p67phox) in the single prolonged stress (SPS) animal model of PTSD. Twenty-four (12 controls; 12 subjected to SPS), 9-week-old, male Wistar rats were used. SPS included physical restraint, forced swimming, and ether exposure. The rats were euthanized seven days later. Cortex, hippocampus, amygdala, and thalamus were dissected. Malondialdehyde (MDA), reduced glutathione (GSH), superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT), Complex I, and cytochrome C oxidase were measured using spectrophotometric methods, while the expression of NADPH oxidase subunits was determined by Western blot. Increased MDA and decreased GSH concentrations were found in the amygdala and hippocampus of the SPS rats. SOD activity was decreased in amygdala and GPx was decreased in hippocampus. Increased expression of the NADPH oxidase subunits was seen in amygdala, while mitochondrial respiratory chain enzyme expression was unchanged both in amygdala and hippocampus. In the cortex concentrations of MDA and GSH were unchanged despite increased Complex I and decreased GPx, while in the thalamus no change of any parameter was noticed. We conclude that oxidative stress is present in hippocampus and amygdala seven days after the SPS procedure. NADPH oxidase seems to be a main source of free radicals in the amygdala.
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Affiliation(s)
- Romana Petrovic
- Special Psychiatric Hospital Laza Lazarevic, Belgrade, Serbia
| | - Laslo Puskas
- Institute of Anatomy "Niko Miljanic", School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Gordana Jevtic Dozudic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tihomir Stojkovic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milica Velimirovic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tatjana Nikolic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milica Zivkovic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Djordje J Djorovic
- Institute of Anatomy "Niko Miljanic", School of Medicine, University of Belgrade, Belgrade, Serbia
| | | | - Natasa Petronijevic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Belgrade, Serbia
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Juodžentė D, Karvelienė B, Riškevičienė V. The influence of the duration of the preoperative time spent in the veterinary clinic without the owner on the psychogenic and oxidative stress in dogs. J Vet Med Sci 2018; 80:1129-1133. [PMID: 29780076 PMCID: PMC6068304 DOI: 10.1292/jvms.18-0066] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The objective of this study was to evaluate the influence of the dog's long-term separation from its owner in the novel environment on the occurrence of psychogenic and oxidative stress. Group I dogs (n=9) were brought to the veterinary clinic and stayed in a kennel room for 12 hr before the surgery, and group II dogs (n=9) -for 10 min before the surgery. Physiological parameters (heart rate (HR) (beats/min) and respiratory rate (fR) (breaths/min)) were measured and blood sampling was done 12 hr before the surgery (T0) for group I dogs and 10 min before the surgery (T1) for both groups dogs. Oxidative stress index (OSI) was determined using spectrophotometer and Rel Assay Diagnostics kits by measuring TAS ant TOS in blood plasma. The cortisol level was measured using AIA-360 Automated Immunoassay Analyzer and ST AIA-pack Cortisol assays. Group I dogs' HR and fR were elevated at T0 and T1, and group II dogs'-at T1 compared to physiological range. OSI and cortisol levels in group I dogs was higher at T1 compared to T0 (P<0.05). There was no significant difference in cortisol level between group I at T0 and group II at T1 (P>0.05). It might be concluded that dogs' longer stay in the novel environment without the owner induced significant changes in OSI and cortisol level, which could lead to slow wound healing and the occurrence of systemic diseases.
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Affiliation(s)
- Dalia Juodžentė
- Dr. L. Kriaučeliūnas Small Animals Clinic, Faculty of Veterinary, Veterinary Academy, Lithuanian University of Health Sciences, Tilžės str. 18, LT-47181, Kaunas, Lithuania
- Department of Veterinary Pathobiology, Faculty of Veterinary, Veterinary Academy, Lithuanian University of Health Sciences, Tilžės str. 18, LT-47181, Kaunas, Lithuania
| | - Birutė Karvelienė
- Dr. L. Kriaučeliūnas Small Animals Clinic, Faculty of Veterinary, Veterinary Academy, Lithuanian University of Health Sciences, Tilžės str. 18, LT-47181, Kaunas, Lithuania
| | - Vita Riškevičienė
- Department of Veterinary Pathobiology, Faculty of Veterinary, Veterinary Academy, Lithuanian University of Health Sciences, Tilžės str. 18, LT-47181, Kaunas, Lithuania
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Jiang W, Li M, He F, Bian Z, Liu J, He Q, Wang X, Sun T, Zhu L. Dopamine D1 receptor agonist A-68930 inhibits NLRP3 inflammasome activation and protects rats from spinal cord injury-induced acute lung injury. Spinal Cord 2016; 54:951-956. [PMID: 27067657 DOI: 10.1038/sc.2016.52] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 03/08/2016] [Accepted: 03/12/2016] [Indexed: 02/07/2023]
Abstract
STUDY DESIGN Randomized experimental study. OBJECTIVES The study aimed to investigate the therapeutic efficacy and molecular mechanisms of A-68930 in a rat model of spinal cord injury (SCI)-induced acute lung injury (ALI). SETTING China. METHODS The influences of A-68930 on the pulmonary edema, histological changes, proinflammatory cytokines levels, myeloperoxidase (MPO) activity and NLRP3 inflammasome protein expression were estimated. RESULTS SCI significantly promoted NLRP3 inflammasome activation, increased proinflammatory cytokine productions and MPO activity, and induced pulmonary edema and tissue damage in the SCI group as compared with the control group. A-68930 administration significantly inhibited NLRP3 inflammasome activation and reduced inflammatory cytokines levels and MPO activity. Moreover, A-68930 administration attenuated pulmonary edema and histopathology. CONCLUSION Our experimental findings indicated that A-68930 exhibited a protective effect on SCI-induced ALI by the alleviations of inflammatory response with the inhibition NLRP3 inflammasome activation 72 h post injury. The present study indicated that A-68930 could be a potentially efficient therapeutic strategy for the treatment of SCI-induced ALI.
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Affiliation(s)
- W Jiang
- Department of Orthopedics, Nanjing Medical University, Affiliated Hangzhou Hospital (Hangzhou First People's Hospital), Hangzhou, China
| | - M Li
- Department of Orthopedics, Nanjing Medical University, Affiliated Hangzhou Hospital (Hangzhou First People's Hospital), Hangzhou, China
| | - F He
- Department of Orthopedics, Nanjing Medical University, Affiliated Hangzhou Hospital (Hangzhou First People's Hospital), Hangzhou, China
| | - Z Bian
- Department of Orthopedics, Nanjing Medical University, Affiliated Hangzhou Hospital (Hangzhou First People's Hospital), Hangzhou, China
| | - J Liu
- Department of Orthopaedics, General Hospital of Beijing Military Command, Beijing, China
| | - Q He
- Department of Orthopedics, Shanghai Jiao Tong University affiliated Sixth People's Hospital, Shanghai, China
| | - X Wang
- Department of Orthopedics, Nanjing Medical University, Affiliated Hangzhou Hospital (Hangzhou First People's Hospital), Hangzhou, China
| | - T Sun
- Department of Orthopaedics, General Hospital of Beijing Military Command, Beijing, China
| | - L Zhu
- Department of Orthopedics, Nanjing Medical University, Affiliated Hangzhou Hospital (Hangzhou First People's Hospital), Hangzhou, China
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Dopamine D1 Receptor Agonist A-68930 Inhibits NLRP3 Inflammasome Activation, Controls Inflammation, and Alleviates Histopathology in a Rat Model of Spinal Cord Injury. Spine (Phila Pa 1976) 2016; 41:E330-4. [PMID: 26966979 DOI: 10.1097/brs.0000000000001287] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A randomized experimental study. OBJECTIVE The aim of this study was to investigate the therapeutic efficacy and molecular mechanisms of dopamine D1 receptor agonist A-68930 in spinal cord injury (SCI) rats. SUMMARY OF BACKGROUND DATA The inflammation induced by SCI includes maturation and secretion of pro-inflammatory cytokines interleukin (IL)-1β and IL-18 mediated by nucleotide-binding domain -like receptor protein 3 (NLRP3) inflammasome. Dopamine D1 receptor agonist A-68930 has been reported to exert neuroprotective effect via suppressing NLRP3 inflammasome activation in some central nervous injury models. However, whether A-68930 can exert nueroprotection in rat SCI models through inhibition of NLRP3 inflammasome activation has yet to be investigated. METHODS Eighty female Sprague-Dawley rats were randomly divided into 4 groups: sham group, SCI group, SCI + Vehicle (Veh) group, SCI + A-68930 group. The influences of A-68930 on the proinflammatory cytokines levels, histological changes, and locomotion scale were estimated. RESULTS SCI significantly promoted NLRP3 inflammasome activation and increased proinflammatory cytokines productions in SCI group as compared with sham group. A-68930 administration significantly inhibited NLRP3 inflammasome activation and reduced inflammatory cytokines levels. Moreover, A-68930 administration attenuated histopathology and promoted locomotion recovery. CONCLUSION A-68930 can attenuate tissue damage and improve neurological function recovery, and the mechanism may be related to the inhibition of NLRP3 inflammasome activation.
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Janakiraman U, Manivasagam T, Thenmozhi AJ, Essa MM, Barathidasan R, SaravanaBabu C, Guillemin GJ, Khan MAS. Influences of Chronic Mild Stress Exposure on Motor, Non-Motor Impairments and Neurochemical Variables in Specific Brain Areas of MPTP/Probenecid Induced Neurotoxicity in Mice. PLoS One 2016; 11:e0146671. [PMID: 26765842 PMCID: PMC4713092 DOI: 10.1371/journal.pone.0146671] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 12/21/2015] [Indexed: 12/31/2022] Open
Abstract
Parkinson's disease (PD) is regarded as a movement disorder mainly affecting the elderly population and occurs due to progressive loss of dopaminergic (DAergic) neurons in nigrostriatal pathway. Patients suffer from non-motor symptoms (NMS) such as depression, anxiety, fatigue and sleep disorders, which are not well focussed in PD research. Depression in PD is a predominant /complex symptom and its pathology lies exterior to the nigrostriatal system. The main aim of this study is to explore the causative or progressive effect of chronic mild stress (CMS), a paradigm developed as an animal model of depression in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (25 mg/kg. body wt.) with probenecid (250 mg/kg, s.c.) (MPTP/p) induced mice model of PD. After ten i.p. injections (once in 3.5 days for 5 weeks) of MPTP/p or exposure to CMS for 4 weeks, the behavioural (motor and non-motor) impairments, levels and expressions of dopamine (DA), serotonin (5-HT), DAergic markers such as tyrosine hydroxylase (TH), dopamine transporter (DAT), vesicular monoamine transporters-2 (VMAT 2) and α-synuclein in nigrostriatal (striatum (ST) and substantia nigra (SN)) and extra-nigrostriatal (hippocampus, cortex and cerebellum) tissues were analysed. Significantly decreased DA and 5-HT levels, TH, DAT and VMAT 2 expressions and increased motor deficits, anhedonia-like behaviour and α-synuclein expression were found in MPTP/p treated mice. Pre and/or post exposure of CMS to MPTP/p mice further enhanced the MPTP/p induced DA and 5-HT depletion, behaviour abnormalities and protein expressions. Our results could strongly confirm that the exposure of stress after MPTP/p injections worsens the symptoms and neurochemicals status of PD.
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Affiliation(s)
- Udaiyappan Janakiraman
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, 608002, Tamilnadu, India
| | - Thamilarasan Manivasagam
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, 608002, Tamilnadu, India
- * E-mail:
| | - Arokiasamy Justin Thenmozhi
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, 608002, Tamilnadu, 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
| | - Rajamani Barathidasan
- Centre for Toxicology and Developmental Research, Sri Ramachandra University, Porur, Chennai-600 116, Tamilnadu, India
| | - Chidambaram SaravanaBabu
- Centre for Toxicology and Developmental Research, Sri Ramachandra University, Porur, Chennai-600 116, Tamilnadu, India
| | - Gilles J. Guillemin
- Neuropharmacology group, Faculty of Medicine and Health Sciences, Deb Bailey MND Research Laboratory, Macquarie University, NSW, 2109, Australia
| | - Mohammed A. S. Khan
- Harvard Medical School, Massachusetts General Hospital, Shriners Hospital for Children, Boston, Massachusetts, 02114, United States of America
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5HT3 receptor antagonist (ondansetron) reverses depressive behavior evoked by chronic unpredictable stress in mice: Modulation of hypothalamic–pituitary–adrenocortical and brain serotonergic system. Pharmacol Biochem Behav 2014; 124:129-36. [DOI: 10.1016/j.pbb.2014.05.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 05/23/2014] [Accepted: 05/31/2014] [Indexed: 11/23/2022]
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Gonzalez J, Jurado-Coronel JC, Ávila MF, Sabogal A, Capani F, Barreto GE. NMDARs in neurological diseases: a potential therapeutic target. Int J Neurosci 2014; 125:315-27. [PMID: 25051426 DOI: 10.3109/00207454.2014.940941] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
N-methyl-D-aspartate ionotropic glutamate receptor (NMDARs) is a ligand-gated ion channel that plays a critical role in excitatory neurotransmission, brain development, synaptic plasticity associated with memory formation, central sensitization during persistent pain, excitotoxicity and neurodegenerative diseases in the central nervous system (CNS). Within iGluRs, NMDA receptors have been the most actively investigated for their role in neurological diseases, especially neurodegenerative pathologies such as Alzheimer's and Parkinson's diseases. It has been demonstrated that excessive activation of NMDA receptors (NMDARs) plays a key role in mediating some aspects of synaptic dysfunction in several CNS disorders, so extensive research has been directed on the discovery of compounds that are able to reduce NMDARs activity. This review discusses the role of NMDARs on neurological pathologies and the possible therapeutic use of agents that target this receptor. Additionally, we delve into the role of NMDARs in Alzheimer's and Parkinson's diseases and the receptor antagonists that have been tested on in vivo models of these pathologies. Finally, we put into consideration the importance of antioxidants to counteract oxidative capacity of the signaling cascade in which NMDARs are involved.
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Affiliation(s)
- Janneth Gonzalez
- 1Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá D.C., Colombia
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Alghasham A, Rasheed N. Stress-mediated modulations in dopaminergic system and their subsequent impact on behavioral and oxidative alterations: an update. PHARMACEUTICAL BIOLOGY 2014; 52:368-377. [PMID: 24147890 DOI: 10.3109/13880209.2013.837492] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CONTEXT Stress-induced changes in the dopaminergic system and subsequent enhancement of oxidative load and behavior are associated with a wide range of central and peripheral nervous disorders. Dopamine acts as a key neurotransmitter in the brain plays an important role in the regulation of motor and limbic functions. OBJECTIVE This article reviews the effect of stress on central dopaminergic system and its subsequent impact on the alterations in behavior and oxidative stress. METHODS A literature survey in PubMed (Bethesda, MD), Scopus (Philadelphia, PA), SciFinder (Columbus, OH) and Google Scholar (PMV, CA) was performed to gather information regarding the role of stress on central dopaminergic system and its associated behavioral and oxidative alterations. RESULTS Our collective data on behavioral studies and oxidative distress in stressful conditions show the functional reduction in dopaminergic neuronal system that could be one of the factors for the development of stress-induced motor suppression. Collectively, stress caused significant behavioral and oxidative alterations via suppression of neuronal functions of the central dopaminergic system. CONCLUSIONS This study provides an insight into the overall pathophysiological alterations in neuronal functions of the central dopaminergic system caused by acute and chronic unpredictable stress that, in our opinion, represent optimal utility as future therapeutic targets for neurodegenerative disorders.
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Schiavone S, Jaquet V, Trabace L, Krause KH. Severe life stress and oxidative stress in the brain: from animal models to human pathology. Antioxid Redox Signal 2013; 18:1475-90. [PMID: 22746161 PMCID: PMC3603496 DOI: 10.1089/ars.2012.4720] [Citation(s) in RCA: 204] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 06/25/2012] [Accepted: 07/01/2012] [Indexed: 12/27/2022]
Abstract
SIGNIFICANCE Severe life stress (SLS), as opposed to trivial everyday stress, is defined as a serious psychosocial event with the potential of causing an impacting psychological traumatism. RECENT ADVANCES Numerous studies have attempted to understand how the central nervous system (CNS) responds to SLS. This response includes a variety of morphological and neurochemical modifications; among them, oxidative stress is almost invariably observed. Oxidative stress is defined as disequilibrium between oxidant generation and the antioxidant response. CRITICAL ISSUES In this review, we discuss how SLS leads to oxidative stress in the CNS, and how the latter impacts pathophysiological outcomes. We also critically discuss experimental methods that measure oxidative stress in the CNS. The review covers animal models and human observations. Animal models of SLS include sleep deprivation, maternal separation, and social isolation in rodents, and the establishment of hierarchy in non-human primates. In humans, SLS, which is caused by traumatic events such as child abuse, war, and divorce, is also accompanied by oxidative stress in the CNS. FUTURE DIRECTIONS The outcome of SLS in humans ranges from resilience, over post-traumatic stress disorder, to development of chronic mental disorders. Defining the sources of oxidative stress in SLS might in the long run provide new therapeutic avenues.
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Affiliation(s)
- Stefania Schiavone
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland.
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Abstract
There is controversy about depression being a physical illness, in part because a reproducible, sensitive, and specific biologic marker is not available. However, there is evidence that mitochondrial dysfunction and oxidative stress may be associated with abnormal brain function and mood disorders, such as depression. This paper reviews selected human and animal studies providing evidence that intracellular mitochondrial metabolic dysfunction in specific brain regions is associated with major depressive disorder. This supports the hypothesis that chronic mitochondrial dysfunction in specific tissues may be associated with depression. Evaluation of mitochondrial dysfunction in specific tissues may broaden the perspective of depression beyond theories about neurotransmitters or receptor sites, and may explain the persistent signs and symptoms of depression.
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Affiliation(s)
- Edward H Tobe
- University of Medicine and Dentistry of New Jersey/School of Osteopathic Medicine, University of Medicine and Dentistry of New Jersey/Robert Wood Johnson Medical School, and Cooper Medical School of Rowan University, Camden, NJ, USA
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Gomes PXL, de Oliveira GV, de Araújo FYR, de Barros Viana GS, de Sousa FCF, Hyphantis TN, Grunberg NE, Carvalho AF, Macêdo DS. Differences in vulnerability to nicotine-induced kindling between female and male periadolescent rats. Psychopharmacology (Berl) 2013; 225:115-26. [PMID: 22782460 DOI: 10.1007/s00213-012-2799-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 06/28/2012] [Indexed: 11/08/2022]
Abstract
RATIONALE It has recently been reported that chronic nicotine administration at subconvulsive doses causes seizures, a phenomenon referred to as kindling. Evidence points to the involvement of oxidative stress in pharmacological and electrical kindling, sex is known to influence the brain's response to nicotine. OBJECTIVES This study investigated the sex differences in vulnerability to nicotine-induced kindling and the involvement of oxidative stress in this phenomenon. METHODS Male and female periadolescent Wistar rats received repeated injections of a subconvulsive dose of nicotine (hemisulfate salt; 2 mg/kg, i.p.) every weekday for up to 25 days. To better understand the influence of oxidative stress in nicotine kindling, the antioxidant vitamin E (200 and 400 mg/kg, p.o.) was administered prior to nicotine administration. The levels of gluthatione (GSH), superoxide dismutase (SOD) activity, and lipid peroxidation were determined in the hippocampus (HC), prefrontal cortex (PFC), and striatum. RESULTS Female animals developed kindling more rapidly than male rats. In female rats, kindling was associated with decreases in antioxidant defenses, including GSH levels in the HC and striatum and SOD activity in the PFC and striatum, and increased lipid peroxidation in all brain areas studied. By contrast, male kindled animals presented only with a decrease in the GSH in the HC. Vitamin E prevented the occurrence of kindled seizures by 80 % and 75 % in male and female rats, respectively. CONCLUSION These novel findings indicate that female periadolescent rats develop nicotine-kindled seizures earlier than their male counterparts. Differences in the oxidative balance may be involved in this mechanism.
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Affiliation(s)
- Patrícia Xavier L Gomes
- Department of Physiology and Pharmacology, Federal University of Ceará, Rua Cel. Nunes de Melo 1127, Fortaleza 60431-270, Ceará, Brazil
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Central dopaminergic system and its implications in stress-mediated neurological disorders and gastric ulcers: short review. Adv Pharmacol Sci 2012; 2012:182671. [PMID: 23008702 PMCID: PMC3449100 DOI: 10.1155/2012/182671] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 08/11/2012] [Accepted: 08/14/2012] [Indexed: 11/17/2022] Open
Abstract
For decades, it has been suggested that dysfunction of dopaminergic pathways and their associated modulations in dopamine levels play a major role in the pathogenesis of neurological disorders. Dopaminergic system is involved in the stress response, and the neural mechanisms involved in stress are important for current research, but the recent and past data on the stress response by dopaminergic system have received little attention. Therefore, we have discussed these data on the stress response and propose a role for dopamine in coping with stress. In addition, we have also discussed gastric stress ulcers and their correlation with dopaminergic system. Furthermore, we have also highlighted some of the glucocorticoids and dopamine-mediated neurological disorders. Our literature survey suggests that dopaminergic system has received little attention in both clinical and preclinical research on stress, but the current research on this issue will surely identify a better understanding of stressful events and will give better ideas for further efficient antistress treatments.
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