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Noriega‐Navarro R, Martínez‐Tapia RJ, González‐Rivera R, Ochoa‐Sánchez A, Abarca‐Magaña JC, Landa‐Navarro L, Rodríguez‐Mata V, Ugalde‐Muñiz P, Pérez‐Torres A, Landa A, Navarro L. The effect of thioredoxin-1 in a rat model of traumatic brain injury depending on diurnal variation. Brain Behav 2023; 13:e3031. [PMID: 37157915 PMCID: PMC10275561 DOI: 10.1002/brb3.3031] [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: 11/25/2022] [Revised: 03/17/2023] [Accepted: 04/17/2023] [Indexed: 05/10/2023] Open
Abstract
INTRODUCTION Traumatic brain injury (TBI) is a public health concern with limited treatment options because it causes a cascade of side effects that are the leading cause of hospital death. Thioredoxin is an enzyme with neuroprotective properties such as antioxidant, antiapoptotic, immune response modulator, and neurogenic, among others; it has been considered a therapeutic target for treating many disorders. METHODS The controlled cortical impact (CCI) model was used to assess the effect of recombinant human thioredoxin 1 (rhTrx1) (1 μg/2 μL, intracortical) on rats subjected to TBI at two different times of the light-dark cycle (01:00 and 13:00 h). We analyzed the food intake, body weight loss, motor coordination, pain perception, and histology in specific hippocampus (CA1, CA2, CA3, and Dental Gyrus) and striatum (caudate-putamen) areas. RESULTS Body weight loss, reduced food intake, spontaneous pain, motor impairment, and neuronal damage in specific hippocampus and striatum regions are more evident in rats subjected to TBI in the light phase than in the dark phase of the cycle and in groups that did not receive rhTrx1 or minocycline (as positive control). Three days after TBI, there is a recovery in body weight, food intake, motor impairment, and pain, which is more pronounced in the rats subjected to TBI at the dark phase of the cycle and those that received rhTrx1 or minocycline. CONCLUSIONS Knowing the time of day a TBI occurs in connection to the neuroprotective mechanisms of the immune response in diurnal variation and the usage of the Trx1 protein might have a beneficial therapeutic impact in promoting quick recovery after a TBI.
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Affiliation(s)
- Roxana Noriega‐Navarro
- Departamento de Fisiología, Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMéxico
| | | | - Rubén González‐Rivera
- Departamento de Fisiología, Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMéxico
| | - Alicia Ochoa‐Sánchez
- Departamento de Microbiología y Parasitología, Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMéxico
| | - Julio César Abarca‐Magaña
- Departamento de Fisiología, Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMéxico
| | - Lucía Landa‐Navarro
- Simons Initiative for the Developing Brain, Centre for Discovery Brain SciencesUniversity of EdinburghEdinburghUK
| | - Verónica Rodríguez‐Mata
- Departamento de Biología Celular y Tisular, Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMéxico
| | - Perla Ugalde‐Muñiz
- Departamento de Fisiología, Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMéxico
| | - Armando Pérez‐Torres
- Departamento de Biología Celular y Tisular, Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMéxico
| | - Abraham Landa
- Departamento de Microbiología y Parasitología, Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMéxico
| | - Luz Navarro
- Departamento de Fisiología, Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMéxico
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Zhao X, He Y, Zhang Y, Wan H, Wan H, Yang J. Inhibition of Oxidative Stress: An Important Molecular Mechanism of Chinese Herbal Medicine (Astragalus membranaceus, Carthamus tinctorius L., Radix Salvia Miltiorrhizae, etc.) in the Treatment of Ischemic Stroke by Regulating the Antioxidant System. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1425369. [PMID: 35651725 PMCID: PMC9151006 DOI: 10.1155/2022/1425369] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/11/2022] [Indexed: 01/07/2023]
Abstract
Ischemic stroke is a severe cerebrovascular disease with high mortality and morbidity. Traditional Chinese medicine (TCM) has been utilized for thousands of years in China and is becoming increasingly popular all over the world, especially for the treatments of ischemic stroke. More and more evidences have implicated that oxidative stress has been closely related with ischemic stroke. This review will concentrate on the evidence of the action mechanism of Chinese herbal medicine and its active ingredient in preventing ischemic stroke by modulating redox signaling and oxidative stress pathways and providing references for clinical treatment and scientific research applications.
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Affiliation(s)
- Xixi Zhao
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yu He
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yangyang Zhang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Haofang Wan
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Haitong Wan
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jiehong Yang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
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Tay EXY, Chia K, Ong DST. Epigenetic plasticity and redox regulation of neural stem cell state and fate. Free Radic Biol Med 2021; 170:116-130. [PMID: 33684459 DOI: 10.1016/j.freeradbiomed.2021.02.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 01/20/2021] [Accepted: 02/24/2021] [Indexed: 12/16/2022]
Abstract
The neural stem cells (NSCs) are essential for normal brain development and homeostasis. The cell state (i.e. quiescent versus activated) and fate (i.e. the cell lineage of choice upon differentiation) of NSCs are tightly controlled by various redox and epigenetic regulatory mechanisms. There is an increasing appreciation that redox and epigenetic regulations are intimately linked, but how this redox-epigenetics crosstalk affects NSC activity remains poorly understood. Another unresolved topic is whether the NSCs actually contribute to brain ageing and neurodegenerative diseases. In this review, we aim to 1) distill concepts that underlie redox and epigenetic regulation of NSC state and fate; 2) provide examples of the redox-epigenetics crosstalk in NSC biology; and 3) highlight potential redox- and epigenetic-based therapeutic opportunities to rescue NSC dysfunctions in ageing and neurodegenerative diseases.
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Affiliation(s)
- Emmy Xue Yun Tay
- Department of Physiology, National University of Singapore, Singapore, 117593, Singapore
| | - Kimberly Chia
- Department of Physiology, National University of Singapore, Singapore, 117593, Singapore
| | - Derrick Sek Tong Ong
- Department of Physiology, National University of Singapore, Singapore, 117593, Singapore; Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, 138673, Singapore; National Neuroscience Institute, Singapore, 308433, Singapore.
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Lee KH, Cha M, Lee BH. Neuroprotective Effect of Antioxidants in the Brain. Int J Mol Sci 2020; 21:ijms21197152. [PMID: 32998277 PMCID: PMC7582347 DOI: 10.3390/ijms21197152] [Citation(s) in RCA: 171] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/18/2020] [Accepted: 09/23/2020] [Indexed: 12/29/2022] Open
Abstract
The brain is vulnerable to excessive oxidative insults because of its abundant lipid content, high energy requirements, and weak antioxidant capacity. Reactive oxygen species (ROS) increase susceptibility to neuronal damage and functional deficits, via oxidative changes in the brain in neurodegenerative diseases. Overabundance and abnormal levels of ROS and/or overload of metals are regulated by cellular defense mechanisms, intracellular signaling, and physiological functions of antioxidants in the brain. Single and/or complex antioxidant compounds targeting oxidative stress, redox metals, and neuronal cell death have been evaluated in multiple preclinical and clinical trials as a complementary therapeutic strategy for combating oxidative stress associated with neurodegenerative diseases. Herein, we present a general analysis and overview of various antioxidants and suggest potential courses of antioxidant treatments for the neuroprotection of the brain from oxidative injury. This review focuses on enzymatic and non-enzymatic antioxidant mechanisms in the brain and examines the relative advantages and methodological concerns when assessing antioxidant compounds for the treatment of neurodegenerative disorders.
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Affiliation(s)
- Kyung Hee Lee
- Department of Dental Hygiene, Division of Health Science, Dongseo University, Busan 47011, Korea;
| | - Myeounghoon Cha
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Korea;
| | - Bae Hwan Lee
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Korea;
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
- Correspondence: ; Tel.: +82-2-2228-1711
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Erdi F, Keskin F, Esen H, Kaya B, Feyzioglu B, Kilinc I, Karatas Y, Cuce G, Kalkan E. Telmisartan ameliorates oxidative stress and subarachnoid haemorrhage-induced cerebral vasospasm. Neurol Res 2016; 38:224-31. [PMID: 27078703 DOI: 10.1080/01616412.2015.1105626] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES Growing evidence suggests that oxidative stress is one of the factors contributing to subarachnoid haemorrhage (SAH)-induced cerebral vasospasm. SAH-induced cerebral vasospam alters thioredoxin (Trx) cycle enzymes and thioredoxin-interacting protein (TXNIP) as an important endogenous antioxidant system. In this study, we have explored the effects of telmisartan on the vascular morphological changes, endothelial apoptosis, tissue oxidative stress status and the level of Trx cycle enzymes/ TXNIP in a rabbit SAH model. METHODS Forty male New Zealand rabbits were randomly divided into five groups of eight rabbits each: control group, sham group, SAH group, SAH + vehicle group and SAH + telmisartan group. SAH was created by a single cisterna magna blood injection. SAH + telmisartan group received telmisartan treatment (5 mg/kg intraperitoneal, once daily) for 72 h. The brainstem tissue Trx1, Trx2, Trx reductase (TrxR), TrxR1and TXNIP levels were investigated. Total oxidant status (TOS), total antioxidant status (TAS), malondialdehyde (MDA) levels and tumour necrosis factor alpha (TNF alpha) levels were investigated. Basilar artery segments were investigated for cross-sectional area, wall thickness measurements and endothelial apoptosis. RESULTS Telmisartan treatment restored the lowered level of Trx1, TrxR, TAS and the expression of TrxR1 seen in SAH. Telmisartan treatment also decreased TXNIP expression, TOS, MDA and TNF alpha levels. Morphological changes of cerebral vasospasm were attenuated after treatment. Endothelial apoptosis significantly reduced. DISCUSSION Treatment with telmisartan ameliorates oxidative stress and SAH-induced cerebral vasospasm in rabbits. These effects of telmisartan may be associated with downregulation of TXNIP and upregulation of Trx/TrxR.
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Affiliation(s)
- Fatih Erdi
- a Necmettin Erbakan University, Meram Faculty of Medicine , Turkey
| | - Fatih Keskin
- a Necmettin Erbakan University, Meram Faculty of Medicine , Turkey
| | - Hasan Esen
- a Necmettin Erbakan University, Meram Faculty of Medicine , Turkey
| | | | | | - Ibrahim Kilinc
- a Necmettin Erbakan University, Meram Faculty of Medicine , Turkey
| | - Yasar Karatas
- a Necmettin Erbakan University, Meram Faculty of Medicine , Turkey
| | - Gokhan Cuce
- a Necmettin Erbakan University, Meram Faculty of Medicine , Turkey
| | - Erdal Kalkan
- a Necmettin Erbakan University, Meram Faculty of Medicine , Turkey
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Yang LC, Li J, Xu SF, Cai J, Lei H, Liu DM, Zhang M, Rong XF, Cui DD, Wang L, Peng Y, Wang XL. L-3-n-butylphthalide Promotes Neurogenesis and Neuroplasticity in Cerebral Ischemic Rats. CNS Neurosci Ther 2015. [PMID: 26215907 DOI: 10.1111/cns.12438] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
AIMS This study investigated whether anticerebral ischemia new drug, l-3-n-butylphthalide (l-NBP), improved behavioral recovery and enhanced hippocampal neurogenesis after cerebral ischemia in rats. METHODS AND RESULTS The middle cerebral artery of rats was blocked for 2 h. The daily oral administrations of 30 mg/kg l-NBP or vehicle were begun from the second day until the rats were sacrificed. L-NBP treatment markedly increased 5-bromo-2'-deoxyuridine (BrdU)-positive cells in the hippocampal dentate gyrus (DG) of injured hemisphere on day 28 after ischemia. The amount of newborn cells and newly mature neurons was also increased. The expressions of growth-associated protein-43 and synaptophysin were significantly elevated in l-NBP-treated rats. However, l-NBP markedly reduced the percentage of BrdU(+) /GFAP(+) cells. Additionally, the levels of catalytical subunit of protein kinase A (PKA), protein kinase B (Akt), and cAMP response element-binding protein (CREB) were significantly increased, and the activation of the signal transducer and activation of transcription 3 (STAT3) and the expressions of cleaved caspase-3 and Bax were obviously inhibited by l-NBP. Consequently, l-NBP attenuated the behavioral dysfunction. CONCLUSIONS It first demonstrates that l-NBP may improve the behavioral outcome of cerebral ischemia by promoting neurogenesis and neuroplasticity. Activation of CREB and Akt and inhibition of STAT3 signaling might be involved in.
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Affiliation(s)
- Li-Chao Yang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jiang Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shao-Feng Xu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jie Cai
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Hui Lei
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Dong-Mei Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Man Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xian-Fang Rong
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Dan-Dan Cui
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ling Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ying Peng
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiao-Liang Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Kaya B, Erdi F, Kılınc I, Keskin F, Feyzıoglu B, Esen H, Karatas Y, Uyar M, Kalkan E. Alterations of the thioredoxin system during subarachnoid hemorrhage-induced cerebral vasospasm. Acta Neurochir (Wien) 2015; 157:793-9; discussion 799-800. [PMID: 25782582 DOI: 10.1007/s00701-015-2390-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 03/03/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND The exact underlying pathogenic mechanisms and effective preventive or therapeutic interventions for cerebral vasospasm remain obscure. The thioredoxin (Trx) system performs important functions in the central nervous system including neurotrophic and neuroprotective actions. There is no study directly investigating the effects of subarachnoid hemorrhage (SAH) induced cerebral vasospasm on the Trx system in the literature. METHODS Sixteen male New Zealand rabbits were randomly divided into two groups of eight rabbits each: a control group and a SAH group. The control group, (n = 8) was a sham surgery group in which SAH was not induced. In the SAH group, (n = 8), the SAH protocol was used to induce cerebral vasospasm. The brain and brainstem were removed and each brainstem was cut coronally into two pieces: an anterior part that contains basilar artery and a dorsal part that contains brainstem tissue. The brainstem tissue thioredoxin-1(Trx1), thioredoxin-2 (Trx2), thioredoxin reductase (TrxR), thioredoxin reductase-1 (TrxR1), thioredoxin-interacting protein (TXNIP) levels were investigated. Total oxidant status (TOS), total antioxidant status (TAS), malondialdehyde levels (MDA) and tumor necrosis factor alpha (TNF-alpha) levels were investigated for determining the oxidative-antioxidative status of the related brain tissues. Basilar artery segments were investigated for cross-sectional area and wall thickness measurements. RESULTS SAH statistically significantly reduced the tissue levels of Trx1 (p < 0.01) and TrxR (p < 0.01). Trx2 levels were not significantly altered after SAH (p > 0.05). SAH significantly reduced the expression of TrxR1 (p < 0.01) and significantly increased the expression of TXNIP (p < 0.01) when compared with controls. TOS levels and MDA levels significantly increased after SAH (p < 0.01) and TAS levels significantly reduced after SAH (p < 0.01). TNF-alpha levels significantly increased after SAH (p < 0.01). SAH-induced cerebral vasospasm significantly (p < 0.05) increased the wall thickness and reduced the mean cross-sectional area of the basilar artery (p < 0.05). CONCLUSIONS The Trx system seems to be negatively affected by the simultaneously interrelated enzymatic alterations during cerebral vasospasm.
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Affiliation(s)
- B Kaya
- Department of Neurosurgery, Necmettin Erbakan University Meram Faculty of Medicine, 42500, Konya, Turkey
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Prozorovski T, Schneider R, Berndt C, Hartung HP, Aktas O. Redox-regulated fate of neural stem progenitor cells. Biochim Biophys Acta Gen Subj 2015; 1850:1543-54. [PMID: 25662818 DOI: 10.1016/j.bbagen.2015.01.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 01/29/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND Accumulated data indicate that self-renewal, multipotency, and differentiation of neural stem cells are under an intrinsic control mediated by alterations in the redox homeostasis. These dynamic redox changes not only reflect and support the ongoing metabolic and energetic processes, but also serve to coordinate redox-signaling cascades. Controlling particular redox couples seems to have a relevant impact on cell fate decision during development, adult neurogenesis and regeneration. SCOPE OF REVIEW Our own research provided initial evidence for the importance of NAD+-dependent enzymes in neural stem cell fate decision. In this review, we summarize recent knowledge on the active role of reactive oxygen species, redox couples and redox-signaling mechanisms on plasticity and function of neural stem and progenitor cells focusing on NAD(P)+/NAD(P)H-mediated processes. MAJOR CONCLUSIONS The compartmentalized subcellular sources and availability of oxidizing/reducing molecules in particular microenvironment define the specificity of redox regulation in modulating the delicate balance between stemness and differentiation of neural progenitors. The generalization of "reactive oxygen species" as well as the ambiguity of their origin might explain the diametrically-opposed findings in the field of redox-dependent cell fate reflected by the literature. GENERAL SIGNIFICANCE Increasing knowledge of temporary and spatially defined redox regulation is of high relevance for the development of novel approaches in the field of cell-based regeneration of nervous tissue in various pathological states. This article is part of a special issue entitled Redox regulation of differentiation and de-differentiation.
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Affiliation(s)
- Tim Prozorovski
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.
| | - Reiner Schneider
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Carsten Berndt
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Hans-Peter Hartung
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Orhan Aktas
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
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Thioredoxin system regulation in the central nervous system: experimental models and clinical evidence. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:590808. [PMID: 24723994 PMCID: PMC3958682 DOI: 10.1155/2014/590808] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/21/2014] [Accepted: 01/23/2014] [Indexed: 02/07/2023]
Abstract
The reactive oxygen species produced continuously during oxidative metabolism are generated at very high rates in the brain. Therefore, defending against oxidative stress is an essential task within the brain. An important cellular system against oxidative stress is the thioredoxin system (TS). TS is composed of thioredoxin, thioredoxin reductase, and NADPH. This review focuses on the evidence gathered in recent investigations into the central nervous system, specifically the different brain regions in which the TS is expressed. Furthermore, we address the conditions that modulate the thioredoxin system in both, animal models and the postmortem brains of human patients associated with the most common neurodegenerative disorders, in which the thioredoxin system could play an important part.
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