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Pu Z, Wu Y, Zhu Z, Zhao H, Cui D. A new horizon for neuroscience: terahertz biotechnology in brain research. Neural Regen Res 2025; 20:309-325. [PMID: 38819036 DOI: 10.4103/nrr.nrr-d-23-00872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 01/03/2024] [Indexed: 06/01/2024] Open
Abstract
Terahertz biotechnology has been increasingly applied in various biomedical fields and has especially shown great potential for application in brain sciences. In this article, we review the development of terahertz biotechnology and its applications in the field of neuropsychiatry. Available evidence indicates promising prospects for the use of terahertz spectroscopy and terahertz imaging techniques in the diagnosis of amyloid disease, cerebrovascular disease, glioma, psychiatric disease, traumatic brain injury, and myelin deficit. In vitro and animal experiments have also demonstrated the potential therapeutic value of terahertz technology in some neuropsychiatric diseases. Although the precise underlying mechanism of the interactions between terahertz electromagnetic waves and the biosystem is not yet fully understood, the research progress in this field shows great potential for biomedical noninvasive diagnostic and therapeutic applications. However, the biosafety of terahertz radiation requires further exploration regarding its two-sided efficacy in practical applications. This review demonstrates that terahertz biotechnology has the potential to be a promising method in the field of neuropsychiatry based on its unique advantages.
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Affiliation(s)
- Zhengping Pu
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Psychiatry, Kangci Hospital of Jiaxing, Tongxiang, Zhejiang Province, China
| | - Yu Wu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai, China
| | - Zhongjie Zhu
- National Facility for Protein Science in Shanghai, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Hongwei Zhao
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai, China
| | - Donghong Cui
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Parrilla GE, Gupta V, Wall RV, Salkar A, Basavarajappa D, Mirzaei M, Chitranshi N, Graham SL, You Y. The role of myelin in neurodegeneration: implications for drug targets and neuroprotection strategies. Rev Neurosci 2024; 35:271-292. [PMID: 37983528 DOI: 10.1515/revneuro-2023-0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/27/2023] [Indexed: 11/22/2023]
Abstract
Myelination of axons in the central nervous system offers numerous advantages, including decreased energy expenditure for signal transmission and enhanced signal speed. The myelin sheaths surrounding an axon consist of a multi-layered membrane that is formed by oligodendrocytes, while specific glycoproteins and lipids play various roles in this formation process. As beneficial as myelin can be, its dysregulation and degeneration can prove detrimental. Inflammation, oxidative stress, and changes in cellular metabolism and the extracellular matrix can lead to demyelination of these axons. These factors are hallmark characteristics of certain demyelinating diseases including multiple sclerosis. The effects of demyelination are also implicated in primary degeneration in diseases such as glaucoma and Alzheimer's disease, as well as in processes of secondary degeneration. This reveals a relationship between myelin and secondary processes of neurodegeneration, including resultant degeneration following traumatic injury and transsynaptic degeneration. The role of myelin in primary and secondary degeneration is also of interest in the exploration of strategies and targets for remyelination, including the use of anti-inflammatory molecules or nanoparticles to deliver drugs. Although the use of these methods in animal models of diseases have shown to be effective in promoting remyelination, very few clinical trials in patients have met primary end points. This may be due to shortcomings or considerations that are not met while designing a clinical trial that targets remyelination. Potential solutions include diversifying disease targets and requiring concomitant interventions to promote rehabilitation.
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Affiliation(s)
- Gabriella E Parrilla
- Faculty of Human, Health, and Medical Science, Department of Clinical Medicine, Macquarie University, Wallumattagal Campus, Macquarie Park, NSW 2109, Australia
| | - Vivek Gupta
- Faculty of Human, Health, and Medical Science, Department of Clinical Medicine, Macquarie University, Wallumattagal Campus, Macquarie Park, NSW 2109, Australia
| | - Roshana Vander Wall
- Faculty of Human, Health, and Medical Science, Department of Clinical Medicine, Macquarie University, Wallumattagal Campus, Macquarie Park, NSW 2109, Australia
| | - Akanksha Salkar
- Faculty of Human, Health, and Medical Science, Department of Clinical Medicine, Macquarie University, Wallumattagal Campus, Macquarie Park, NSW 2109, Australia
| | - Devaraj Basavarajappa
- Faculty of Human, Health, and Medical Science, Department of Clinical Medicine, Macquarie University, Wallumattagal Campus, Macquarie Park, NSW 2109, Australia
| | - Mehdi Mirzaei
- Faculty of Human, Health, and Medical Science, Department of Clinical Medicine, Macquarie University, Wallumattagal Campus, Macquarie Park, NSW 2109, Australia
| | - Nitin Chitranshi
- Faculty of Human, Health, and Medical Science, Department of Clinical Medicine, Macquarie University, Wallumattagal Campus, Macquarie Park, NSW 2109, Australia
| | - Stuart L Graham
- Faculty of Human, Health, and Medical Science, Department of Clinical Medicine, Macquarie University, Wallumattagal Campus, Macquarie Park, NSW 2109, Australia
- Save Sight Institute, University of Sydney, 8 Macquarie St, Sydney, NSW 2000, Australia
| | - Yuyi You
- Faculty of Human, Health, and Medical Science, Department of Clinical Medicine, Macquarie University, Wallumattagal Campus, Macquarie Park, NSW 2109, Australia
- Save Sight Institute, University of Sydney, 8 Macquarie St, Sydney, NSW 2000, Australia
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Esperante IJ, Meyer M, Banzan C, Kruse MS, Lima A, Roig P, Guennoun R, Schumacher M, De Nicola AF, Gonzalez Deniselle MC. Testosterone Reduces Myelin Abnormalities in the Wobbler Mouse Model of Amyotrophic Lateral Sclerosis. Biomolecules 2024; 14:428. [PMID: 38672445 PMCID: PMC11048492 DOI: 10.3390/biom14040428] [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: 12/06/2023] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal motoneuron degenerative disease that is associated with demyelination. The Wobbler (WR) mouse exhibits motoneuron degeneration, gliosis and myelin deterioration in the cervical spinal cord. Since male WRs display low testosterone (T) levels in the nervous system, we investigated if T modified myelin-relative parameters in WRs in the absence or presence of the aromatase inhibitor, anastrozole (A). We studied myelin by using luxol-fast-blue (LFB) staining, semithin sections, electron microscopy and myelin protein expression, density of IBA1+ microglia and mRNA expression of inflammatory factors, and the glutamatergic parameters glutamine synthetase (GS) and the transporter GLT1. Controls and WR + T showed higher LFB, MBP and PLP staining, lower g-ratios and compact myelin than WRs and WR + T + A, and groups showing the rupture of myelin lamellae. WRs showed increased IBA1+ cells and mRNA for CD11b and inflammatory factors (IL-18, TLR4, TNFαR1 and P2Y12R) vs. controls or WR + T. IBA1+ cells, and CD11b were not reduced in WR + T + A, but inflammatory factors' mRNA remained low. A reduction of GS+ cells and GLT-1 immunoreactivity was observed in WRs and WR + T + A vs. controls and WR + T. Clinically, WR + T but not WR + T + A showed enhanced muscle mass, grip strength and reduced paw abnormalities. Therefore, T effects involve myelin protection, a finding of potential clinical translation.
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Affiliation(s)
- Ivan J. Esperante
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental, CONICET, Buenos Aires 1428, Argentina; (I.J.E.); (M.M.); (C.B.); (A.F.D.N.)
| | - Maria Meyer
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental, CONICET, Buenos Aires 1428, Argentina; (I.J.E.); (M.M.); (C.B.); (A.F.D.N.)
| | - Carolina Banzan
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental, CONICET, Buenos Aires 1428, Argentina; (I.J.E.); (M.M.); (C.B.); (A.F.D.N.)
| | - Maria Sol Kruse
- Laboratory of Neurobiology, Instituto de Biologia y Medicina Experimental, CONICET, Buenos Aires 1428, Argentina;
| | - Analia Lima
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental, CONICET, Buenos Aires 1428, Argentina; (I.J.E.); (M.M.); (C.B.); (A.F.D.N.)
| | - Paulina Roig
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental, CONICET, Buenos Aires 1428, Argentina; (I.J.E.); (M.M.); (C.B.); (A.F.D.N.)
| | - Rachida Guennoun
- U1195 INSERM and University Paris Sud: “Neuroprotective, Neuroregenerative and Remyelinating Small Molecules”, 94276 Kremlin-Bicêtre, France; (R.G.); (M.S.)
| | - Michael Schumacher
- U1195 INSERM and University Paris Sud: “Neuroprotective, Neuroregenerative and Remyelinating Small Molecules”, 94276 Kremlin-Bicêtre, France; (R.G.); (M.S.)
| | - Alejandro F. De Nicola
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental, CONICET, Buenos Aires 1428, Argentina; (I.J.E.); (M.M.); (C.B.); (A.F.D.N.)
- Departamento de Bioquímica Humana, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires 1121, Argentina
| | - Maria Claudia Gonzalez Deniselle
- Laboratory of Neuroendocrine Biochemistry, Instituto de Biologia y Medicina Experimental, CONICET, Buenos Aires 1428, Argentina; (I.J.E.); (M.M.); (C.B.); (A.F.D.N.)
- Departamento de Ciencias Fisiológicas, UA1, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires 1121, Argentina
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Rogujski P, Lukomska B, Janowski M, Stanaszek L. Glial-restricted progenitor cells: a cure for diseased brain? Biol Res 2024; 57:8. [PMID: 38475854 DOI: 10.1186/s40659-024-00486-1] [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: 03/03/2023] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
The central nervous system (CNS) is home to neuronal and glial cells. Traditionally, glia was disregarded as just the structural support across the brain and spinal cord, in striking contrast to neurons, always considered critical players in CNS functioning. In modern times this outdated dogma is continuously repelled by new evidence unravelling the importance of glia in neuronal maintenance and function. Therefore, glia replacement has been considered a potentially powerful therapeutic strategy. Glial progenitors are at the center of this hope, as they are the source of new glial cells. Indeed, sophisticated experimental therapies and exciting clinical trials shed light on the utility of exogenous glia in disease treatment. Therefore, this review article will elaborate on glial-restricted progenitor cells (GRPs), their origin and characteristics, available sources, and adaptation to current therapeutic approaches aimed at various CNS diseases, with particular attention paid to myelin-related disorders with a focus on recent progress and emerging concepts. The landscape of GRP clinical applications is also comprehensively presented, and future perspectives on promising, GRP-based therapeutic strategies for brain and spinal cord diseases are described in detail.
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Affiliation(s)
- Piotr Rogujski
- NeuroRepair Department, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106, Warsaw, Poland
| | - Barbara Lukomska
- NeuroRepair Department, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106, Warsaw, Poland
| | - Miroslaw Janowski
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland, Baltimore, MD, USA
| | - Luiza Stanaszek
- NeuroRepair Department, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106, Warsaw, Poland.
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Mousavi SH, Lindsey JW, Westlund KN, Alles SRA. Trigeminal Neuralgia as a Primary Demyelinating Disease: Potential Multimodal Evidence and Remaining Controversies. THE JOURNAL OF PAIN 2024; 25:302-311. [PMID: 37643657 DOI: 10.1016/j.jpain.2023.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/17/2023] [Accepted: 08/23/2023] [Indexed: 08/31/2023]
Abstract
Trigeminal neuralgia is a heterogeneous disorder with likely multifactorial and complex etiology; however, trigeminal nerve demyelination and injury are observed in almost all patients with trigeminal neuralgia. The current management strategies for trigeminal neuralgia primarily involve anticonvulsants and surgical interventions, neither of which directly address demyelination, the pathological hallmark of trigeminal neuralgia, and treatments targeting demyelination are not available. Demyelination of the trigeminal nerve has been historically considered a secondary effect of vascular compression, and as a result, trigeminal neuralgia is not recognized nor treated as a primary demyelinating disorder. In this article, we review the evolution of our understanding of trigeminal neuralgia and provide evidence to propose its potential categorization, at least in some cases, as a primary demyelinating disease by discussing its course and similarities to multiple sclerosis, the most prevalent central nervous system demyelinating disorder. This proposed categorization may provide a basis in investigating novel treatment modalities beyond the current medical and surgical interventions, emphasizing the need for further research into demyelination of the trigeminal sensory pathway in trigeminal neuralgia. PERSPECTIVE: This article proposes trigeminal neuralgia as a demyelinating disease, supported by histological, clinical, and radiological evidence. Such categorization offers a plausible explanation for controversies surrounding trigeminal neuralgia. This perspective holds potential for future research and developing therapeutics targeting demyelination in the condition.
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Affiliation(s)
- Seyed H Mousavi
- Division of Multiple Sclerosis and Neuroimmunology, Department of Neurology, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas
| | - John W Lindsey
- Division of Multiple Sclerosis and Neuroimmunology, Department of Neurology, University of Texas Health Science Center at Houston (UTHealth), Houston, Texas
| | - Karin N Westlund
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico
| | - Sascha R A Alles
- Department of Anesthesiology & Critical Care Medicine, University of New Mexico Health Sciences Center, Albuquerque, New Mexico
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Scarfò G, Piccarducci R, Daniele S, Franzoni F, Martini C. Exploring the Role of Lipid-Binding Proteins and Oxidative Stress in Neurodegenerative Disorders: A Focus on the Neuroprotective Effects of Nutraceutical Supplementation and Physical Exercise. Antioxidants (Basel) 2022; 11:2116. [PMID: 36358488 PMCID: PMC9686611 DOI: 10.3390/antiox11112116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 07/29/2023] Open
Abstract
The human brain is primarily composed of lipids, and their homeostasis is crucial to carry on normal neuronal functions. In order to provide an adequate amount of lipid transport in and out of the central nervous system, organisms need a set of proteins able to bind them. Therefore, alterations in the structure or function of lipid-binding proteins negatively affect brain homeostasis, as well as increase inflammation and oxidative stress with the consequent risk of neurodegeneration. In this regard, lifestyle changes seem to be protective against neurodegenerative processes. Nutraceutical supplementation with antioxidant molecules has proven to be useful in proving cognitive functions. Additionally, regular physical activity seems to protect neuronal vitality and increases antioxidant defenses. The aim of the present review was to investigate mechanisms that link lipid-binding protein dysfunction and oxidative stress to cognitive decline, also underlining the neuroprotective effects of diet and exercise.
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Affiliation(s)
- Giorgia Scarfò
- Department of Clinical and Experimental Medicine, Division of General Medicine, University of Pisa, 56126 Pisa, Italy
- Center for Rehabilitative Medicine “Sport and Anatomy”, University of Pisa, 56126 Pisa, Italy
| | | | - Simona Daniele
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy
| | - Ferdinando Franzoni
- Department of Clinical and Experimental Medicine, Division of General Medicine, University of Pisa, 56126 Pisa, Italy
- Center for Rehabilitative Medicine “Sport and Anatomy”, University of Pisa, 56126 Pisa, Italy
| | - Claudia Martini
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy
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Zhao JW, Wang DX, Ma XR, Dong ZJ, Wu JB, Wang F, Wu Y. Impaired metabolism of oligodendrocyte progenitor cells and axons in demyelinated lesion and in the aged CNS. Curr Opin Pharmacol 2022; 64:102205. [PMID: 35344763 DOI: 10.1016/j.coph.2022.102205] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 12/12/2022]
Abstract
The key pathology of multiple sclerosis (MS) comprises demyelination, axonal damage, and neuronal loss, and when MS develops into the progressive phase it is essentially untreatable. Identifying new targets in both axons and oligodendrocyte progenitor cells (OPCs) and rejuvenating the aged OPCs holds promise for this unmet medical need. We summarize here the recent evidence showing that mitochondria in both axons and OPCs are impaired, and lipid metabolism of OPCs within demyelinated lesion and in the aged CNS is disturbed. Given that emerging evidence shows that rewiring cellular metabolism regulates stem cell aging, to protect axons from degeneration and promote differentiation of OPCs, we propose that restoring the impaired metabolism of both OPCs and axons in the aged CNS in a synergistic way could be a promising strategy to enhance remyelination in the aged CNS, leading to novel drug-based approaches to treat the progressive phase of MS.
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Affiliation(s)
- Jing-Wei Zhao
- Department of Pathology and Department of Human Anatomy, Histology and Embryology of Sir Run Run Shaw Hospital, System Medicine Research Center, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China; Cryo-Electron Microscope Center, Zhejiang University, Hangzhou 310058, China.
| | - Di-Xian Wang
- Department of Pathology and Department of Human Anatomy, Histology and Embryology of Sir Run Run Shaw Hospital, System Medicine Research Center, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Xiao-Ru Ma
- Department of Pathology and Department of Human Anatomy, Histology and Embryology of Sir Run Run Shaw Hospital, System Medicine Research Center, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Zhao-Jun Dong
- Department of Pathology and Department of Human Anatomy, Histology and Embryology of Sir Run Run Shaw Hospital, System Medicine Research Center, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jian-Bin Wu
- Department of Pathology and Department of Human Anatomy, Histology and Embryology of Sir Run Run Shaw Hospital, System Medicine Research Center, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Fan Wang
- Department of Pathology and Department of Human Anatomy, Histology and Embryology of Sir Run Run Shaw Hospital, System Medicine Research Center, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Yang Wu
- Department of Pathology and Department of Human Anatomy, Histology and Embryology of Sir Run Run Shaw Hospital, System Medicine Research Center, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China
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Crotalphine Attenuates Pain and Neuroinflammation Induced by Experimental Autoimmune Encephalomyelitis in Mice. Toxins (Basel) 2021; 13:toxins13110827. [PMID: 34822611 PMCID: PMC8624587 DOI: 10.3390/toxins13110827] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/12/2021] [Accepted: 11/17/2021] [Indexed: 12/11/2022] Open
Abstract
Multiple sclerosis (MS) is a demyelinating disease of inflammatory and autoimmune origin, which induces sensory and progressive motor impairments, including pain. Cells of the immune system actively participate in the pathogenesis and progression of MS by inducing neuroinflammation, tissue damage, and demyelination. Crotalphine (CRO), a structural analogue to a peptide firstly identified in Crotalus durissus terrificus snake venom, induces analgesia by endogenous opioid release and type 2 cannabinoid receptor (CB2) activation. Since CB2 activation downregulates neuroinflammation and ameliorates symptoms in mice models of MS, it was presently investigated whether CRO has a beneficial effect in the experimental autoimmune encephalomyelitis (EAE). CRO was administered on the 5th day after immunization, in a single dose, or five doses starting at the peak of disease. CRO partially reverted EAE-induced mechanical hyperalgesia and decreased the severity of the clinical signs. In addition, CRO decreases the inflammatory infiltrate and glial cells activation followed by TNF-α and IL-17 downregulation in the spinal cord. Peripherally, CRO recovers the EAE-induced impairment in myelin thickness in the sciatic nerve. Therefore, CRO interferes with central and peripheral neuroinflammation, opening perspectives to MS control.
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Wahdan SA, Elsherbiny DA, Azab SS, El-Demerdash E. Piceatannol ameliorates behavioural, biochemical and histological aspects in cisplatin-induced peripheral neuropathy in rats. Basic Clin Pharmacol Toxicol 2021; 129:486-495. [PMID: 34390194 DOI: 10.1111/bcpt.13643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/17/2021] [Accepted: 08/09/2021] [Indexed: 01/02/2023]
Abstract
Peripheral neurotoxicity is a dose-limiting and a potentially lifelong persistent toxicity of cisplatin. This study investigated the possible protective effect of piceatannol (PIC) in a model of cisplatin-induced peripheral neuropathy in rats. PIC (10 mg/kg, i.p.) was given for 7 days, starting 2 days before cisplatin single injection (7 mg/kg, i.p.). Behavioural, biochemical and histological examinations were conducted. Cisplatin administration resulted in thermal hypoalgesia evidenced by increased paw and tail withdrawal latency times in the hotplate and tail flick tests, respectively, and reduced the abdominal constrictions in response to the acetic acid injection. Moreover, cisplatin treatment decreased rat locomotor activity and grip strength. These behavioural alterations were reversed by PIC coadministration. In addition, PIC decreased cisplatin-induced elevation in serum neurotensin and platinum accumulation in sciatic nerve. Also, PIC reversed, to a large extent, cisplatin-induced microscopical alterations in nerve axons and restored normal myelin thickness. Therefore, PIC may protect against cisplatin-induced peripheral neuropathy.
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Affiliation(s)
- Sara A Wahdan
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Doaa A Elsherbiny
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Samar S Azab
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Ebtehal El-Demerdash
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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Hydrogen Sulfide Ameliorates Lipopolysaccharide-Induced Memory Impairment in Mice by Reducing Apoptosis, Oxidative, and Inflammatory Effects. Neurotox Res 2021; 39:1310-1322. [PMID: 34021860 DOI: 10.1007/s12640-021-00374-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/19/2021] [Accepted: 05/10/2021] [Indexed: 01/06/2023]
Abstract
Hydrogen sulfide (H2S) is reported to have a neuroprotective activity; however, the role of H2S in neuroinflammation-induced neuronal damage is ambiguous. Here, we aimed to evaluate the underlying mechanisms for the neuroprotective effect of NaHS, a known H2S donor, against lipopolysaccharide (LPS)-induced memory impairment (MI). All the treatments were administered for 28 days, and LPS (0.25 mg/kg i.p.) was co-administered intermittently for 7 days from days 15 to 21. Morris water maze (MWM) and Y-maze tests were performed to evaluate MI. Neurodegeneration was histopathologically examined, and the brain homogenates were characterized for reduced glutathione (GSH), superoxide dismutase (SOD), malondialdehyde (MDA), tumor necrosis factor (TNF)-α, interleukin (IL)-6, caspase-3, c-Jun, and acetylcholinesterase (AChE) by biochemical analysis. H2S administration significantly improved spatial and working memory in MWM and Y-maze tasks, respectively. Exogenous H2S significantly reversed LPS-induced oxidative stress as evidenced by improved GSH, MDA, and SOD levels. H2S pretreatment significantly attenuated LPS-induced apoptosis and inflammation by decreasing c-Jun and caspase-3 levels and inhibiting TNF-α and IL-6, respectively. The decrease in these markers was supported by H&E and Nissl staining, which confirmed the anti-necrotic activity of H2S. However, there was no significant improvement in LPS-induced increase in AChE activity. These results indicate that chronic systemic inflammation leads to neurodegeneration and MI and H2S exerts its neuroprotective effect due to its anti-oxidative, anti-inflammatory, and anti-apoptotic potential via modulation of JNK and extrinsic apoptosis pathways.
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Sawyer TW, Wang Y, Song Y, Villanueva M, Jimenez A. Sulphur mustard induces progressive toxicity and demyelination in brain cell aggregate culture. Neurotoxicology 2021; 84:114-124. [PMID: 33753116 DOI: 10.1016/j.neuro.2021.03.004] [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: 01/11/2021] [Revised: 03/17/2021] [Accepted: 03/17/2021] [Indexed: 10/21/2022]
Abstract
Sulphur mustard (H; bis(2-chloroethyl) sulphide) is a vesicant chemical warfare (CW) agent that has been well documented as causing acute injury to the skin, eyes and respiratory system. Although a great deal of research effort has been expended to understand how H exerts these effects, its mechanism of action is still poorly understood. At high exposures, H also causes systemic toxicity with chronic and long-term effects to the immune, cardiovascular and central nervous systems, and these aspects of H poisoning are much less studied and comprehended. Rat aggregate cultures comprised of multiple brain cell types were exposed to H and followed for four weeks post-exposure to assess neurotoxicity. Toxicity (LDH, caspase-3 and aggregate diameter) was progressive with time post-exposure. In addition, statistically significant changes in neurofilament heavy chain (NFH), glial fibrillary acidic protein (GFAP), Akt phosphorylation, IL-6, GRO-KC and TNF-α were noted that were time- and concentration-dependent. Myelin basic protein, CNPase and vascular endothelial growth factor (VEGF) were found to be especially sensitive to H exposure in a time- and concentration-dependent fashion, with levels falling to ∼50 % of control values at ∼10 μM H by 8 days post-exposure. Demyelination and VEGF inhibition may be causal in the long-term neuropsychological illnesses that have been documented in casualties exposed to high concentrations of H, and may also play a role in the peripheral neuropathy that has been observed in some of these individuals.
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Affiliation(s)
- Thomas W Sawyer
- Defence Research & Development Canada, Suffield Research Centre, Box 4000, Medicine Hat, Alberta, T1A 8K6, Canada.
| | - Yushan Wang
- Defence Research & Development Canada, Suffield Research Centre, Box 4000, Medicine Hat, Alberta, T1A 8K6, Canada
| | - Yanfeng Song
- Defence Research & Development Canada, Suffield Research Centre, Box 4000, Medicine Hat, Alberta, T1A 8K6, Canada
| | - Mercy Villanueva
- Defence Research & Development Canada, Suffield Research Centre, Box 4000, Medicine Hat, Alberta, T1A 8K6, Canada
| | - Andres Jimenez
- Defence Research & Development Canada, Suffield Research Centre, Box 4000, Medicine Hat, Alberta, T1A 8K6, Canada
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Mozafari S, Starost L, Manot-Saillet B, Garcia-Diaz B, Xu YKT, Roussel D, Levy MJF, Ottoboni L, Kim KP, Schöler HR, Kennedy TE, Antel JP, Martino G, Angulo MC, Kuhlmann T, Baron-Van Evercooren A. Multiple sclerosis iPS-derived oligodendroglia conserve their properties to functionally interact with axons and glia in vivo. SCIENCE ADVANCES 2020; 6:6/49/eabc6983. [PMID: 33277253 PMCID: PMC7821889 DOI: 10.1126/sciadv.abc6983] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 10/22/2020] [Indexed: 05/04/2023]
Abstract
Remyelination failure in multiple sclerosis (MS) is associated with a migration/differentiation block of oligodendroglia. The reason for this block is highly debated. It could result from disease-related extrinsic or intrinsic regulators in oligodendroglial biology. To avoid confounding immune-mediated extrinsic effect, we used an immune-deficient mouse model to compare induced pluripotent stem cell-derived oligodendroglia from MS and healthy donors following engraftment in the developing CNS. We show that the MS-progeny behaves and differentiates into oligodendrocytes to the same extent as controls. They generate equal amounts of myelin, with bona fide nodes of Ranvier, and promote equal restoration of their host slow conduction. MS-progeny expressed oligodendrocyte- and astrocyte-specific connexins and established functional connections with donor and host glia. Thus, MS oligodendroglia, regardless of major immune manipulators, are intrinsically capable of myelination and making functional axo-glia/glia-glia connections, reinforcing the view that the MS oligodendrocyte differentiation block is not from major intrinsic oligodendroglial deficits.
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Affiliation(s)
- Sabah Mozafari
- INSERM, U1127, F-75013 Paris, France
- CNRS, UMR 7225, F-75013 Paris, France
- Sorbonne Université UPMC Paris 06, UM-75, F-75005, Paris, France
- ICM-GH Pitié-Salpêtrière, F-75013, Paris, France
| | - Laura Starost
- Institute of Neuropathology, University Hospital Münster, 48149 Münster, Germany
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, 48149 Münster, Germany
| | - Blandine Manot-Saillet
- Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM, Université de Paris, U1266, F-75014 Paris, France
- GHU PARIS Psychiatrie & Neurosciences, Paris, France
| | - Beatriz Garcia-Diaz
- INSERM, U1127, F-75013 Paris, France
- CNRS, UMR 7225, F-75013 Paris, France
- Sorbonne Université UPMC Paris 06, UM-75, F-75005, Paris, France
- ICM-GH Pitié-Salpêtrière, F-75013, Paris, France
| | - Yu Kang T Xu
- McGill Program in Neuroengineering, Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Delphine Roussel
- INSERM, U1127, F-75013 Paris, France
- CNRS, UMR 7225, F-75013 Paris, France
- Sorbonne Université UPMC Paris 06, UM-75, F-75005, Paris, France
- ICM-GH Pitié-Salpêtrière, F-75013, Paris, France
| | - Marion J F Levy
- INSERM, U1127, F-75013 Paris, France
- CNRS, UMR 7225, F-75013 Paris, France
- Sorbonne Université UPMC Paris 06, UM-75, F-75005, Paris, France
- ICM-GH Pitié-Salpêtrière, F-75013, Paris, France
| | - Linda Ottoboni
- Institute of Experimental Neurology-DIBIT 2, Division of Neuroscience, IRCCS San Raffaele Hospital and Vita San Raffaele University, Milan, Italy
| | - Kee-Pyo Kim
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, 48149 Münster, Germany
| | - Hans R Schöler
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, 48149 Münster, Germany
| | - Timothy E Kennedy
- McGill Program in Neuroengineering, Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Jack P Antel
- Neuroimmunology Unit, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Gianvito Martino
- Institute of Experimental Neurology-DIBIT 2, Division of Neuroscience, IRCCS San Raffaele Hospital and Vita San Raffaele University, Milan, Italy
| | - Maria Cecilia Angulo
- Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM, Université de Paris, U1266, F-75014 Paris, France
- GHU PARIS Psychiatrie & Neurosciences, Paris, France
| | - Tanja Kuhlmann
- Institute of Neuropathology, University Hospital Münster, 48149 Münster, Germany
- Department of Cell and Developmental Biology, Max Planck Institute for Molecular Biomedicine, 48149 Münster, Germany
| | - Anne Baron-Van Evercooren
- INSERM, U1127, F-75013 Paris, France.
- CNRS, UMR 7225, F-75013 Paris, France
- Sorbonne Université UPMC Paris 06, UM-75, F-75005, Paris, France
- ICM-GH Pitié-Salpêtrière, F-75013, Paris, France
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Environmental and Nutritional "Stressors" and Oligodendrocyte Dysfunction: Role of Mitochondrial and Endoplasmatic Reticulum Impairment. Biomedicines 2020; 8:biomedicines8120553. [PMID: 33265917 PMCID: PMC7760976 DOI: 10.3390/biomedicines8120553] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/25/2020] [Accepted: 11/27/2020] [Indexed: 12/13/2022] Open
Abstract
Oligodendrocytes are myelinating cells of the central nervous system which are generated by progenitor oligodendrocytes as a result of maturation processes. The main function of mature oligodendrocytes is to produce myelin, a lipid-rich multi-lamellar membrane that wraps tightly around neuronal axons, insulating them and facilitating nerve conduction through saltatory propagation. The myelination process requires the consumption a large amount of energy and a high metabolic turnover. Mitochondria are essential organelles which regulate many cellular functions, including energy production through oxidative phosphorylation. Any mitochondrial dysfunction impacts cellular metabolism and negatively affects the health of the organism. If the functioning of the mitochondria is unbalanced, the myelination process is impaired. When myelination has finished, oligodendrocyte will have synthesized about 40% of the total lipids present in the brain. Since lipid synthesis occurs in the cellular endoplasmic reticulum, the dysfunction of this organelle can lead to partial or deficient myelination, triggering numerous neurodegenerative diseases. In this review, the induced malfunction of oligodendrocytes by harmful exogenous stimuli has been outlined. In particular, the effects of alcohol consumption and heavy metal intake are discussed. Furthermore, the response of the oligodendrocyte to excessive mitochondrial oxidative stress and to the altered regulation of the functioning of the endoplasmic reticulum will be explored.
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14
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Yuan F, Wang P, Yang Y, Shi P, Cheng L. Quercetin-albumin nano-complex as an antioxidant agent against hydrogen peroxide-induced death of spinal cord neurons as a model of preventive care study. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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15
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Zhong YH, Zheng BE, He RH, Zhou Z, Zhang SQ, Wei Y, Fan JZ. Serum Levels of HDL Cholesterol are Associated with Diffuse Axonal Injury in Patients with Traumatic Brain Injury. Neurocrit Care 2020; 34:465-472. [PMID: 32642967 DOI: 10.1007/s12028-020-01043-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND It is well known that lipids are vital for axonal myelin repair. Diffuse axonal injury (DAI) is characterized by widespread axonal injury. The association between serum lipids and DAI is not well known. The purpose of this study was to investigate the associations of serum lipid profile variables (triglycerides, high- and low-density lipoproteins, and total cholesterol) with DAI detected by magnetic resonance imaging (MRI) and with clinical outcome for patients suffering from traumatic brain injury (TBI). METHODS This study included 176 patients with a history of TBI who had undergone initial serum lipid measurements within 1 week and brain MRIs within 30 days. Based on MRI findings, patients were divided into negative and positive DAI groups. RESULTS Of the 176 patients, 70 (39.8%) were assigned to DAI group and 106 (60.2%) patients to non-DAI group. Compared with the non-DAI group, patients with DAI had significantly lower levels of high-density lipoprotein cholesterol (HDL-C) in serum during the first week following TBI. Multivariate analysis identified HDL-C as an independent predictor of DAI. Patients with lower serum HDL-C levels were less likely to regain consciousness within 6 months in TBI patients with DAI lesions identified by MRI. CONCLUSIONS Plasma levels of HDL-C may be a viable addition to biomarker panels for predicting the presence and prognosis of DAI on subsequent MRI following TBI.
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Affiliation(s)
- Yu H Zhong
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong Province, China.
| | - Bi E Zheng
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong Province, China
| | - Ren H He
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong Province, China
| | - Zhou Zhou
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong Province, China
| | - Sheng Q Zhang
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong Province, China
| | - Yi Wei
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong Province, China
| | - Jian Z Fan
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong Province, China
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Moura VBL, Milhomem AC, Lima SB, Matos-Silva H, Sugita DM, Vinaud MC, Lino-Júnior RDS. Demyelination in experimental intraventricular neurocysticercosis. ARQUIVOS DE NEURO-PSIQUIATRIA 2020; 78:103-111. [PMID: 32022135 DOI: 10.1590/0004-282x20190155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 09/19/2019] [Indexed: 11/21/2022]
Abstract
Neurocysticercosis (NCC) is classified as a neglected tropical disease, which affects mainly Latin America and Africa in spite of some reports in North America and Europe. NCC represents the cause of up to 30% of the reported cases of epilepsy in endemic countries. The NCC injuries present direct relation to the development stage, location, and number of parasites as well as to the host immune response. This study aimed the characterization of the inflammatory response and tissue injuries by means of the analyses of the periventricular and parenchymatous demyelination through the experimental intraventricular NCC infection. Therefore, BALB/c mice were submitted to experimental NCC inoculation with Taenia crassiceps cysticerci. Their brains were removed at 7, 30, 60, and 90 days after the inoculation (DAI), and analyzed after staining with hematoxylin and eosin (HE), Luxol Fast Blue, and Nissl. It was possible to observe ventriculomegaly, inflammatory infiltration composed by polymorphonuclear and mononuclear cells, and foamy macrophages. The presence of inflammatory cells was associated with neurodegeneration detected by the areas with demyelination observed initially in the periventricular area and lately in the parenchyma. In conclusion, the presence of cysticerci and the consequent inflammation were able to promote initial periventricular demyelination followed by parenchymatous demyelination as the infection progressed.
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Affiliation(s)
| | - Analia Cirqueira Milhomem
- Universidade Federal de Goiás, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Instituto de Patologia Tropical e Saúde Pública, Goiânia GO, Brazil
| | - Sarah Buzaim Lima
- Universidade Federal de Goiás, Programa de Pós-Graduação em Medicina Tropical e Saúde Pública, Instituto de Patologia Tropical e Saúde Pública, Goiânia GO, Brazil
| | | | | | - Mariana Clare Vinaud
- Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia GO, Brazil
| | - Ruy de Souza Lino-Júnior
- Universidade Federal de Goiás, Instituto de Patologia Tropical e Saúde Pública, Goiânia GO, Brazil
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Krajnak K. Frequency-dependent changes in mitochondrial number and generation of reactive oxygen species in a rat model of vibration-induced injury. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2020; 83:20-35. [PMID: 31971087 PMCID: PMC7737659 DOI: 10.1080/15287394.2020.1718043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Regular use of vibrating hand tools results in cold-induced vasoconstriction, finger blanching, and a reduction in tactile sensitivity and manual dexterity. Depending upon the length and frequency, vibration induces regeneration, or dysfunction and apoptosis, inflammation and an increase in reactive oxygen species (ROS) levels. These changes may be associated with mitochondria, this study examined the effects of vibration on total and functional mitochondria number. Male rats were exposed to restraint or tail vibration at 62.5, 125, or 250 Hz. The frequency-dependent effects of vibration on mitochondrial number and generation of oxidative stress were examined. After 10 days of exposure at 125 Hz, ventral tail arteries (VTA) were constricted and there was an increase in mitochondrial number and intensity of ROS staining. In the skin, the influence of vibration on arterioles displayed a similar but insignificant response in VTA. There was also a reduction in the number of small nerves with exposure to vibration at 250 Hz, and a reduction in mitochondrial number in nerves in restrained and all vibrated conditions. There was a significant rise in the size of the sensory receptors with vibration at 125 Hz, and an elevation in ROS levels. Based upon these results, mitochondria number and activity are affected by vibration, especially at frequencies at or near resonance. The influence of vibration on the vascular system may either be adaptive or maladaptive. However, the effects on cutaneous nerves might be a precursor to loss of innervation and sensory function noted in workers exposed to vibration.
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Affiliation(s)
- Kristine Krajnak
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, WV, USA
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18
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Magnesium Is a Key Player in Neuronal Maturation and Neuropathology. Int J Mol Sci 2019; 20:ijms20143439. [PMID: 31336935 PMCID: PMC6678825 DOI: 10.3390/ijms20143439] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/06/2019] [Accepted: 07/09/2019] [Indexed: 01/05/2023] Open
Abstract
Magnesium (Mg) is the second most abundant cation in mammalian cells, and it is essential for numerous cellular processes including enzymatic reactions, ion channel functions, metabolic cycles, cellular signaling, and DNA/RNA stabilities. Because of the versatile and universal nature of Mg2+, the homeostasis of intracellular Mg2+ is physiologically linked to growth, proliferation, differentiation, energy metabolism, and death of cells. On the cellular and tissue levels, maintaining Mg2+ within optimal levels according to the biological context, such as cell types, developmental stages, extracellular environments, and pathophysiological conditions, is crucial for development, normal functions, and diseases. Hence, Mg2+ is pathologically involved in cancers, diabetes, and neurodegenerative diseases, such as Parkinson's disease, Alzheimer's disease, and demyelination. In the research field regarding the roles and mechanisms of Mg2+ regulation, numerous controversies caused by its versatility and complexity still exist. As Mg2+, at least, plays critical roles in neuronal development, healthy normal functions, and diseases, appropriate Mg2+ supplementation exhibits neurotrophic effects in a majority of cases. Hence, the control of Mg2+ homeostasis can be a candidate for therapeutic targets in neuronal diseases. In this review, recent results regarding the roles of intracellular Mg2+ and its regulatory system in determining the cell phenotype, fate, and diseases in the nervous system are summarized, and an overview of the comprehensive roles of Mg2+ is provided.
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Maffei C, Sarubbo S, Jovicich J. A Missing Connection: A Review of the Macrostructural Anatomy and Tractography of the Acoustic Radiation. Front Neuroanat 2019; 13:27. [PMID: 30899216 PMCID: PMC6416820 DOI: 10.3389/fnana.2019.00027] [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: 04/04/2018] [Accepted: 02/15/2019] [Indexed: 12/13/2022] Open
Abstract
The auditory system of mammals is dedicated to encoding, elaborating and transporting acoustic information from the auditory nerve to the auditory cortex. The acoustic radiation (AR) constitutes the thalamo-cortical projection of this system, conveying the auditory signals from the medial geniculate nucleus (MGN) of the thalamus to the transverse temporal gyrus on the superior temporal lobe. While representing one of the major sensory pathways of the primate brain, the currently available anatomical information of this white matter bundle is quite limited in humans, thus constituting a notable omission in clinical and general studies on auditory processing and language perception. Tracing procedures in humans have restricted applications, and the in vivo reconstruction of this bundle using diffusion tractography techniques remains challenging. Hence, a more accurate and reliable reconstruction of the AR is necessary for understanding the neurobiological substrates supporting audition and language processing mechanisms in both health and disease. This review aims to unite available information on the macroscopic anatomy and topography of the AR in humans and non-human primates. Particular attention is brought to the anatomical characteristics that make this bundle difficult to reconstruct using non-invasive techniques, such as diffusion-based tractography. Open questions in the field and possible future research directions are discussed.
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Affiliation(s)
- Chiara Maffei
- Harvard Medical School, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States.,Center for Mind/Brain Sciences - CIMeC, University of Trento, Trento, Italy
| | - Silvio Sarubbo
- Division of Neurosurgery, Structural and Functional Connectivity Lab Project, S. Chiara Hospital, Trento Azienda Provinciale per i Servizi Sanitari (APSS), Trento, Italy
| | - Jorge Jovicich
- Center for Mind/Brain Sciences - CIMeC, University of Trento, Trento, Italy.,Department of Psychology and Cognitive Sciences, University of Trento, Trento, Italy
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Araki T, Yamashita T. Mechanism of neuroaxonal degeneration: from molecular signaling to therapeutic applications. Neurosci Res 2019; 139:1-2. [PMID: 30738591 DOI: 10.1016/j.neures.2018.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Toshiyuki Araki
- Department of Peripheral Nervous System Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-higashi, Kodaira, Tokyo 187-8502, Japan.
| | - Toshihide Yamashita
- Department of Molecular Neuroscience, Graduate School of Medicine, Osaka University, 2-2, Yamadaoka, Suita, Osaka 565-0871, Japan
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