1
|
Lin C, He C, Li L, Liu Y, Tang L, Ni Z, Zhang N, Lai T, Chen X, Wang X. Alpha-lipoic acid (ALA) ameliorates early brain injury after subarachnoid hemorrhage in Sprague-Dawley (SD) rats via inhibiting STING-NLRP3 inflammatory signaling. Neuroreport 2024; 35:250-257. [PMID: 38305103 PMCID: PMC10852041 DOI: 10.1097/wnr.0000000000001998] [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: 10/22/2023] [Accepted: 12/20/2023] [Indexed: 02/03/2024]
Abstract
Neuroinflammation is intimately associated with poor prognosis in patients with subarachnoid hemorrhage (SAH). Alpha-lipoic acid (ALA), a disulfide antioxidant, has been shown to be neuroprotective in an in vivo model of neurological injury; however, the role of ALA in SAH has never been evaluated. In this study, the Sprague-Dawley rats SAH model was induced by endovascular perforation method. ALA was transplanted intravenously into rats, and SR-717, a stimulator of interferon genes (STING) agonist, was injected intraperitoneally. The effects of ALA on early brain injury were assayed by neurological score, hematoxylin and eosin staining and Nissl staining. Immunohistochemistry staining and Western blotting were used to analyze various proteins. ALA significantly reduced STING- NLRP3 protein expression and decreased cell death, which in turn mitigated the neurobehavioral dysfunction following SAH. Furthermore, coadministration of ALA and SR-717 promoted STING-NLRP3 signaling pathway activation following SAH, which reversed the inhibitory effect of ALA on STING-NLRP3 protein activation and increased the neurological deficits. In conclusion, ALA may be a promising therapeutic strategy for alleviating early brain injury after SAH.
Collapse
Affiliation(s)
- Chunnan Lin
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong
- Department of Neurosurgery, Maoming People’s Hospital
- Department of Neurosurgery, Maoming Clinical College of Guangdong Medical University, Maoming, Guangdong, China
| | - Chunliu He
- Department of Neurosurgery, Maoming People’s Hospital
- Department of Neurosurgery, Maoming Clinical College of Guangdong Medical University, Maoming, Guangdong, China
| | - Liuqing Li
- Department of Neurosurgery, Maoming People’s Hospital
- Department of Neurosurgery, Maoming Clinical College of Guangdong Medical University, Maoming, Guangdong, China
| | - Yongqiang Liu
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong
- Department of Neurosurgery, Maoming People’s Hospital
- Department of Neurosurgery, Maoming Clinical College of Guangdong Medical University, Maoming, Guangdong, China
| | - Liangang Tang
- Department of Neurosurgery, Maoming People’s Hospital
- Department of Neurosurgery, Maoming Clinical College of Guangdong Medical University, Maoming, Guangdong, China
| | - Zepeng Ni
- Department of Neurosurgery, Maoming People’s Hospital
- Department of Neurosurgery, Maoming Clinical College of Guangdong Medical University, Maoming, Guangdong, China
| | - Naichong Zhang
- Department of Neurosurgery, Maoming People’s Hospital
- Department of Neurosurgery, Maoming Clinical College of Guangdong Medical University, Maoming, Guangdong, China
| | - Tinghai Lai
- Department of Neurosurgery, Maoming People’s Hospital
- Department of Neurosurgery, Maoming Clinical College of Guangdong Medical University, Maoming, Guangdong, China
| | - Xiaohong Chen
- Department of Neurosurgery, Maoming People’s Hospital
- Department of Neurosurgery, Maoming Clinical College of Guangdong Medical University, Maoming, Guangdong, China
| | - Xiangyu Wang
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong
| |
Collapse
|
2
|
Kocheril PA, Moore SC, Lenz KD, Mukundan H, Lilley LM. Progress Toward a Multiomic Understanding of Traumatic Brain Injury: A Review. Biomark Insights 2022; 17:11772719221105145. [PMID: 35719705 PMCID: PMC9201320 DOI: 10.1177/11772719221105145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/17/2022] [Indexed: 12/11/2022] Open
Abstract
Traumatic brain injury (TBI) is not a single disease state but describes an array
of conditions associated with insult or injury to the brain. While some
individuals with TBI recover within a few days or months, others present with
persistent symptoms that can cause disability, neuropsychological trauma, and
even death. Understanding, diagnosing, and treating TBI is extremely complex for
many reasons, including the variable biomechanics of head impact, differences in
severity and location of injury, and individual patient characteristics. Because
of these confounding factors, the development of reliable diagnostics and
targeted treatments for brain injury remains elusive. We argue that the
development of effective diagnostic and therapeutic strategies for TBI requires
a deep understanding of human neurophysiology at the molecular level and that
the framework of multiomics may provide some effective solutions for the
diagnosis and treatment of this challenging condition. To this end, we present
here a comprehensive review of TBI biomarker candidates from across the
multiomic disciplines and compare them with known signatures associated with
other neuropsychological conditions, including Alzheimer’s disease and
Parkinson’s disease. We believe that this integrated view will facilitate a
deeper understanding of the pathophysiology of TBI and its potential links to
other neurological diseases.
Collapse
Affiliation(s)
- Philip A Kocheril
- Physical Chemistry and Applied Spectroscopy Group, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Shepard C Moore
- Physical Chemistry and Applied Spectroscopy Group, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Kiersten D Lenz
- Physical Chemistry and Applied Spectroscopy Group, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Harshini Mukundan
- Physical Chemistry and Applied Spectroscopy Group, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Laura M Lilley
- Physical Chemistry and Applied Spectroscopy Group, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| |
Collapse
|
3
|
Zhou C, Zheng J, Fan Y, Wu J. TI: NLRP3 Inflammasome-Dependent Pyroptosis in CNS Trauma: A Potential Therapeutic Target. Front Cell Dev Biol 2022; 10:821225. [PMID: 35186932 PMCID: PMC8847380 DOI: 10.3389/fcell.2022.821225] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/03/2022] [Indexed: 12/22/2022] Open
Abstract
Central nervous system (CNS) trauma, including traumatic brain injury (TBI) and traumatic spinal cord injury (SCI), is characterized by high morbidity, disability, and mortality. TBI and SCI have similar pathophysiological mechanisms and are often accompanied by serious inflammatory responses. Pyroptosis, an inflammation-dependent programmed cell death, is becoming a major problem in CNS post-traumatic injury. Notably, the pyrin domain containing 3 (NLRP3) inflammasome is a key protein in the pyroptosis signaling pathway. Therefore, underlying mechanism of the NLRP3 inflammasome in the development of CNS trauma has attracted much attention. In this review, we briefly summarize the molecular mechanisms of NLRP3 inflammasome in pyroptosis signaling pathway, including its prime and activation. Moreover, the dynamic expression pattern, and roles of the NLRP3 inflammasome in CNS post-traumatic injury are summarized. The therapeutic applications of NLRP3 inflammasome activation inhibitors are also discussed.
Collapse
Affiliation(s)
- Conghui Zhou
- The First Affiliated Hospital of Zhejiang University, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jinfeng Zheng
- The First Affiliated Hospital of Zhejiang University, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yunpeng Fan
- The First Affiliated Hospital of Zhejiang University, School of Medicine, Zhejiang University, Hangzhou, China
| | - Junsong Wu
- Department of Orthopaedics of the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Junsong Wu,
| |
Collapse
|
4
|
Ahluwalia M, Kumar M, Ahluwalia P, Rahimi S, Vender JR, Raju RP, Hess DC, Baban B, Vale FL, Dhandapani KM, Vaibhav K. Rescuing mitochondria in traumatic brain injury and intracerebral hemorrhages - A potential therapeutic approach. Neurochem Int 2021; 150:105192. [PMID: 34560175 PMCID: PMC8542401 DOI: 10.1016/j.neuint.2021.105192] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/18/2021] [Accepted: 09/20/2021] [Indexed: 02/07/2023]
Abstract
Mitochondria are dynamic organelles responsible for cellular energy production. Besides, regulating energy homeostasis, mitochondria are responsible for calcium homeostasis, signal transmission, and the fate of cellular survival in case of injury and pathologies. Accumulating reports have suggested multiple roles of mitochondria in neuropathologies, neurodegeneration, and immune activation under physiological and pathological conditions. Mitochondrial dysfunction, which occurs at the initial phase of brain injury, involves oxidative stress, inflammation, deficits in mitochondrial bioenergetics, biogenesis, transport, and autophagy. Thus, development of targeted therapeutics to protect mitochondria may improve functional outcomes following traumatic brain injury (TBI) and intracerebral hemorrhages (ICH). In this review, we summarize mitochondrial dysfunction related to TBI and ICH, including the mechanisms involved, and discuss therapeutic approaches with special emphasis on past and current clinical trials.
Collapse
Affiliation(s)
- Meenakshi Ahluwalia
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, USA.
| | - Manish Kumar
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Pankaj Ahluwalia
- Department of Pathology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Scott Rahimi
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - John R Vender
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Raghavan P Raju
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - David C Hess
- Department of Neurology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Babak Baban
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - Fernando L Vale
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Krishnan M Dhandapani
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Kumar Vaibhav
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA, USA; Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA, USA.
| |
Collapse
|
5
|
Kaur D, Behl T, Sehgal A, Singh S, Sharma N, Chigurupati S, Alhowail A, Abdeen A, Ibrahim SF, Vargas-De-La-Cruz C, Sachdeva M, Bhatia S, Al-Harrasi A, Bungau S. Decrypting the potential role of α-lipoic acid in Alzheimer's disease. Life Sci 2021; 284:119899. [PMID: 34450170 DOI: 10.1016/j.lfs.2021.119899] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 12/20/2022]
Abstract
Alzheimer's disease (AD) is one of the most prevalent neurodegenerative diseases with motor disturbances, cognitive decline, and behavioral impairment. It is characterized by the extracellular aggregation of amyloid-β plaques and the intracellular accumulation of tau protein. AD patients show a cognitive decline, which has been associated with oxidative stress, as well as mitochondrial dysfunction. Alpha-lipoic acid (α-LA), a natural antioxidant present in food and used as a dietary supplement, has been considered a promising agent for the prevention or treatment of neurodegenerative disorders. Despite multiple preclinical studies indicating beneficial effects of α-LA in memory functioning, and pointing to its neuroprotective effects, to date only a few studies have examined its effects in humans. Studies performed in animal models of memory loss associated with aging and AD have shown that α-LA improves memory in a variety of behavioral paradigms. Furthermore, molecular mechanisms underlying α-LA effects have also been investigated. Accordingly, α-LA shows antioxidant, antiapoptotic, anti-inflammatory, glioprotective, metal chelating properties in both in vivo and in vitro studies. In addition, it has been shown that α-LA reverses age-associated loss of neurotransmitters and their receptors. The review article aimed at summarizing and discussing the main studies investigating the neuroprotective effects of α-LA on cognition as well as its molecular effects, to improve the understanding of the therapeutic potential of α-LA in patients suffering from neurodegenerative disorders, supporting the development of clinical trials with α-LA.
Collapse
Affiliation(s)
- Dapinder Kaur
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India.
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah, Saudi Arabia
| | - Ahmed Alhowail
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraidah, Saudi Arabia
| | - Ahmed Abdeen
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh, Egypt; Center of Excellence for Screening of Environmental Contaminants, Benha University, Toukh, Egypt
| | - Samah F Ibrahim
- Clinical Sciences Department, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia; Forensic Medicine and Clinical Toxicology Department, College of Medicine, Cairo University, Cairo, Egypt
| | - Celia Vargas-De-La-Cruz
- Faculty of Pharmacy and Biochemistry, Academic Department of Pharmacology, Bromatology and Toxicology, Centro Latinoamericano de Ensenanza e Investigacion en Bacteriologia Alimentaria, Universidad Nacinol Mayor de San Marcos, Lima, Peru; E-Health Research Center, Universidad de Ciencias y Humanidades, Lima, Peru
| | - Monika Sachdeva
- Fatima College of Health Sciences, Alain, United Arab Emirates
| | - Saurabh Bhatia
- Natural & Medical Sciences Research Center, University of Nizwa, Nizwa, Oman; School of Health Science, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
| |
Collapse
|
6
|
Modulated Neuroprotection in Unresponsive Wakefulness Syndrome after Severe Traumatic Brain Injury. Brain Sci 2021; 11:brainsci11081044. [PMID: 34439663 PMCID: PMC8394505 DOI: 10.3390/brainsci11081044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/31/2021] [Accepted: 08/04/2021] [Indexed: 11/25/2022] Open
Abstract
Background: We aimed to assess the effects of modulated neuroprotection with intermittent administration in patients with unresponsive wakefulness syndrome (UWS) after severe traumatic brain injury (TBI). Methods: Retrospective analysis of 60 patients divided into two groups, with and without neuroprotective treatment with Actovegin, Cerebrolysin, pyritinol, L-phosphothreonine, L-glutamine, hydroxocobalamin, alpha-lipoic acid, carotene, DL-α-tocopherol, ascorbic acid, thiamine, pyridoxine, cyanocobalamin, Q 10 coenzyme, and L-carnitine alongside standard treatment. Main outcome measures: Glasgow Coma Scale (GCS) after TBI, Extended Glasgow Coma Scale (GOS E), Disability Rankin Scale (DRS), Functional Independence Measurement (FIM), and Montreal Cognitive Assessment (MOCA), all assessed at 1, 3, 6, 12, and 24 months after TBI. Results: Patients receiving neuroprotective treatment recovered more rapidly from UWS than controls (p = 0.007) passing through a state of minimal consciousness and gradually progressing until the final evaluation (p = 0.000), towards a high cognitive level MOCA = 22 ± 6 points, upper moderate disability GOS-E = 6 ± 1, DRS = 6 ± 4, and an assisted gait, FIM =101 ± 25. The improvement in cognitive and physical functioning was strongly correlated with lower UWS duration (−0.8532) and higher GCS score (0.9803). Conclusion: Modulated long-term neuroprotection may be the therapeutic key for patients to overcome UWS after severe TBI.
Collapse
|
7
|
Agnes JP, Santos VWD, das Neves RN, Gonçalves RM, Delgobo M, Girardi CS, Lückemeyer DD, Ferreira MDA, Macedo-Júnior SJ, Lopes SC, Spiller F, Gelain DP, Moreira JCF, Prediger RD, Ferreira J, Zanotto-Filho A. Antioxidants Improve Oxaliplatin-Induced Peripheral Neuropathy in Tumor-Bearing Mice Model: Role of Spinal Cord Oxidative Stress and Inflammation. THE JOURNAL OF PAIN 2021; 22:996-1013. [PMID: 33774154 DOI: 10.1016/j.jpain.2021.03.142] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/25/2021] [Accepted: 03/08/2021] [Indexed: 12/13/2022]
Abstract
Chemotherapy-Induced Peripheral Neuropathy (CIPN) is a common, difficult-to-treat, and dose-limiting side effect associated with Oxaliplatin (OXA) treatment. In this study, we evaluated the effect of three antioxidants - namely N-acetylcysteine, α-lipoic acid and vitamin E - upon nociceptive parameters and antitumor efficacy of OXA in a tumor-bearing Swiss mice model. Oral treatment with antioxidants inhibited both mechanical and cold allodynia when concomitantly administrated with OXA (preventive protocol), as well as in animals with previously established CIPN (therapeutic protocol). OXA increased Reactive Oxygen Species (ROS) production and lipoperoxidation, and augmented the content of pro-inflammatory cytokines (IL-1β and TNF-α) and expression of the astrocytic marker Gfap mRNA in the spinal cord. Antioxidants decreased ROS production and lipoperoxidation, and abolished neuroinflammation in OXA-treated animals. Toll-like receptor 4 (Tlr4) and inflammasome enzyme caspase-1/11 knockout mice treated with OXA showed reduced levels of pro-inflammatory cytokines (but not oxidative stress) in the spinal cord, which were associated with resistance to OXA-induced mechanical allodynia. Lastly, antioxidants affected neither antitumor activity nor hematological toxicity of OXA in vivo. The herein presented results are provocative for further evaluation of antioxidants in clinical management of chemotherapy-induced peripheral neuropathy. PERSPECTIVE: This study reports preventive and therapeutic efficacy of orally administrated antioxidants (N-acetylcysteine, α-lipoic-acid and Vitamin-E) in alleviating oxaliplatin-induced peripheral neuropathy in tumor-bearing mice. Antioxidants' anti-nociceptive effects are associated with inhibition of ROS-dependent neuroinflammation, and occur at no detriment of OXA antitumor activity, therefore indicating a translational potential of these compounds.
Collapse
Affiliation(s)
- Jonathan Paulo Agnes
- Laboratório de Farmacologia e Bioquímica do Câncer, Programa de Pós-Graduação em Farmacologia, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Vitória Wibbelt Dos Santos
- Laboratório de Farmacologia e Bioquímica do Câncer, Programa de Pós-Graduação em Farmacologia, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Raquel Nascimento das Neves
- Laboratório de Farmacologia e Bioquímica do Câncer, Programa de Pós-Graduação em Farmacologia, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Rosângela Mayer Gonçalves
- Laboratório de Farmacologia e Bioquímica do Câncer, Programa de Pós-Graduação em Farmacologia, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Marina Delgobo
- Laboratório de Farmacologia e Bioquímica do Câncer, Programa de Pós-Graduação em Farmacologia, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Carolina Saibro Girardi
- Centro de Estudos em Estresse Oxidativo, Departamento de Bioquimica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Débora Denardin Lückemeyer
- Laboratório de Farmacologia Experimental, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Marcella de Amorim Ferreira
- Laboratório de Farmacologia Experimental, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Sérgio José Macedo-Júnior
- Laboratório de Farmacologia Experimental, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Samantha Cristiane Lopes
- Laboratório Experimental de Doenças Neurodegenerativas, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Fernando Spiller
- Laboratório de Imunobiologia (Lidi), Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Daniel Pens Gelain
- Centro de Estudos em Estresse Oxidativo, Departamento de Bioquimica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - José Cláudio Fonseca Moreira
- Centro de Estudos em Estresse Oxidativo, Departamento de Bioquimica, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Rui Daniel Prediger
- Laboratório Experimental de Doenças Neurodegenerativas, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Juliano Ferreira
- Laboratório de Farmacologia Experimental, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Alfeu Zanotto-Filho
- Laboratório de Farmacologia e Bioquímica do Câncer, Programa de Pós-Graduação em Farmacologia, Departamento de Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil.
| |
Collapse
|
8
|
McGeown JP, Hume PA, Theadom A, Quarrie KL, Borotkanics R. Nutritional interventions to improve neurophysiological impairments following traumatic brain injury: A systematic review. J Neurosci Res 2020; 99:573-603. [PMID: 33107071 DOI: 10.1002/jnr.24746] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/02/2020] [Accepted: 10/07/2020] [Indexed: 12/25/2022]
Abstract
Traumatic brain injury (TBI) accounts for significant global health burden. Effects of TBI can become chronic even following mild injury. There is a need to develop effective therapies to attenuate the damaging effects of TBI and improve recovery outcomes. This literature review using a priori criteria (PROSPERO; CRD42018100623) summarized 43 studies between January 1998 and July 2019 that investigated nutritional interventions (NUT) delivered with the objective of altering neurophysiological (NP) outcomes following TBI. Risk of bias was assessed for included studies, and NP outcomes recorded. The systematic search resulted in 43 of 3,748 identified studies met inclusion criteria. No studies evaluated the effect of a NUT on NP outcomes of TBI in humans. Biomarkers of morphological changes and apoptosis, oxidative stress, and plasticity, neurogenesis, and neurotransmission were the most evaluated NP outcomes across the 43 studies that used 2,897 animals. The risk of bias was unclear in all reviewed studies due to poorly detailed methodology sections. Taking these limitations into account, anti-oxidants, branched chain amino acids, and ω-3 polyunsaturated fatty acids have shown the most promising pre-clinical results for altering NP outcomes following TBI. Refinement of pre-clinical methodologies used to evaluate effects of interventions on secondary damage of TBI would improve the likelihood of translation to clinical populations.
Collapse
Affiliation(s)
- Joshua P McGeown
- Sports Performance Research Institute New Zealand (SPRINZ), Faculty of Health and Environmental Science, Auckland University of Technology, Auckland, New Zealand.,Traumatic Brain Injury Network, Auckland University of Technology, Auckland, New Zealand
| | - Patria A Hume
- Sports Performance Research Institute New Zealand (SPRINZ), Faculty of Health and Environmental Science, Auckland University of Technology, Auckland, New Zealand.,Traumatic Brain Injury Network, Auckland University of Technology, Auckland, New Zealand.,National Institute of Stroke and Applied Neuroscience (NISAN), Faculty of Health and Environmental Science, Auckland University of Technology, Auckland, New Zealand
| | - Alice Theadom
- Traumatic Brain Injury Network, Auckland University of Technology, Auckland, New Zealand.,National Institute of Stroke and Applied Neuroscience (NISAN), Faculty of Health and Environmental Science, Auckland University of Technology, Auckland, New Zealand
| | | | - Robert Borotkanics
- Sports Performance Research Institute New Zealand (SPRINZ), Faculty of Health and Environmental Science, Auckland University of Technology, Auckland, New Zealand
| |
Collapse
|
9
|
Sharma HS, Sahib S, Tian ZR, Muresanu DF, Nozari A, Castellani RJ, Lafuente JV, Wiklund L, Sharma A. Protein kinase inhibitors in traumatic brain injury and repair: New roles of nanomedicine. PROGRESS IN BRAIN RESEARCH 2020; 258:233-283. [PMID: 33223036 DOI: 10.1016/bs.pbr.2020.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Traumatic brain injury (TBI) causes physical injury to the cell membranes of neurons, glial and axons causing the release of several neurochemicals including glutamate and cytokines altering cell-signaling pathways. Upregulation of mitogen associated protein kinase (MAPK) and extracellular signal-regulated kinase (ERK) occurs that is largely responsible for cell death. The pharmacological blockade of these pathways results in cell survival. In this review role of several protein kinase inhibitors on TBI induced oxidative stress, blood-brain barrier breakdown, brain edema formation, and resulting brain pathology is discussed in the light of current literature.
Collapse
Affiliation(s)
- Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
| | - Seaab Sahib
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Z Ryan Tian
- Department of Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Dafin F Muresanu
- Department of Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania; "RoNeuro" Institute for Neurological Research and Diagnostic, Cluj-Napoca, Romania
| | - Ala Nozari
- Anesthesiology & Intensive Care, Massachusetts General Hospital, Boston, MA, United States
| | - Rudy J Castellani
- Department of Pathology, University of Maryland, Baltimore, MD, United States
| | - José Vicente Lafuente
- LaNCE, Department of Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bilbao, Spain
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Department of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| |
Collapse
|
10
|
Ismail H, Shakkour Z, Tabet M, Abdelhady S, Kobaisi A, Abedi R, Nasrallah L, Pintus G, Al-Dhaheri Y, Mondello S, El-Khoury R, Eid AH, Kobeissy F, Salameh J. Traumatic Brain Injury: Oxidative Stress and Novel Anti-Oxidants Such as Mitoquinone and Edaravone. Antioxidants (Basel) 2020; 9:antiox9100943. [PMID: 33019512 PMCID: PMC7601591 DOI: 10.3390/antiox9100943] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/04/2020] [Accepted: 09/22/2020] [Indexed: 12/20/2022] Open
Abstract
Traumatic brain injury (TBI) is a major health concern worldwide and is classified based on severity into mild, moderate, and severe. The mechanical injury in TBI leads to a metabolic and ionic imbalance, which eventually leads to excessive production of reactive oxygen species (ROS) and a state of oxidative stress. To date, no drug has been approved by the food and drug administration (FDA) for the treatment of TBI. Nevertheless, it is thought that targeting the pathology mechanisms would alleviate the consequences of TBI. For that purpose, antioxidants have been considered as treatment options in TBI and were shown to have a neuroprotective effect. In this review, we will discuss oxidative stress in TBI, the history of antioxidant utilization in the treatment of TBI, and we will focus on two novel antioxidants, mitoquinone (MitoQ) and edaravone. MitoQ can cross the blood brain barrier and cellular membranes to accumulate in the mitochondria and is thought to activate the Nrf2/ARE pathway leading to an increase in the expression of antioxidant enzymes. Edaravone is a free radical scavenger that leads to the mitigation of damage resulting from oxidative stress with a possible association to the activation of the Nrf2/ARE pathway as well.
Collapse
Affiliation(s)
- Helene Ismail
- Department of Neurology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon;
| | - Zaynab Shakkour
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Maha Tabet
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Samar Abdelhady
- Faculty of Medicine, Alexandria University, Alexandria 21544, Egypt;
| | - Abir Kobaisi
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Reem Abedi
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Leila Nasrallah
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Gianfranco Pintus
- Department of Medical Laboratory Sciences, University of Sharjah, Sharjah 27272, UAE;
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Yusra Al-Dhaheri
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain 15551, UAE;
| | - Stefania Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98165 Messina, Italy;
| | - Riyad El-Khoury
- Department of Pathology and Laboratory Medicine, Neuromuscular Diagnostic Laboratory, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon;
| | - Ali H. Eid
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut 1107 2020, Lebanon
- Department of Biomedical Sciences, Qatar University, Doha 2713, Qatar
- Correspondence: (A.H.E.); (F.K.); (J.S.); Tel.: +961-1-350000 (ext. 4891) (A.H.E.); +961-1-350000 (ext. 4805) (F.K.); +961-1-350000 (ext. 7359) (J.S.)
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
- Correspondence: (A.H.E.); (F.K.); (J.S.); Tel.: +961-1-350000 (ext. 4891) (A.H.E.); +961-1-350000 (ext. 4805) (F.K.); +961-1-350000 (ext. 7359) (J.S.)
| | - Johnny Salameh
- Department of Neurology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon;
- Correspondence: (A.H.E.); (F.K.); (J.S.); Tel.: +961-1-350000 (ext. 4891) (A.H.E.); +961-1-350000 (ext. 4805) (F.K.); +961-1-350000 (ext. 7359) (J.S.)
| |
Collapse
|
11
|
Turkyilmaz IB, Bilgin Sokmen B, Yanardag R. Alpha‐lipoic acid prevents brain injury in rats administered with valproic acid. J Biochem Mol Toxicol 2020; 34:e22580. [DOI: 10.1002/jbt.22580] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/21/2020] [Accepted: 06/30/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Ismet Burcu Turkyilmaz
- Department of Chemistry, Faculty of Engineering Istanbul University‐Cerrahpasa Istanbul Turkey
| | - Bahar Bilgin Sokmen
- Department of Chemistry, Faculty of Arts and Sciences Giresun University Giresun Turkey
| | - Refiye Yanardag
- Department of Chemistry, Faculty of Engineering Istanbul University‐Cerrahpasa Istanbul Turkey
| |
Collapse
|
12
|
Malekahmadi M, Moradi Moghaddam O, Islam SMS, Tanha K, Nematy M, Pahlavani N, Firouzi S, Zali MR, Norouzy A. Evaluation of the effects of pycnogenol (French maritime pine bark extract) supplementation on inflammatory biomarkers and nutritional and clinical status in traumatic brain injury patients in an intensive care unit: A randomized clinical trial protocol. Trials 2020; 21:162. [PMID: 32046747 PMCID: PMC7014642 DOI: 10.1186/s13063-019-4008-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 12/18/2019] [Indexed: 12/16/2022] Open
Abstract
Background Traumatic brain injury (TBI) is one of the major health and socioeconomic problems in the world. Immune-enhancing enteral formula has been proven to significantly reduce infection rate in TBI patients. One of the ingredients that can be used in immunonutrition formulas to reduce inflammation and oxidative stress is pycnogenol. Objective The objective of this work is to survey the effect of pycnogenol on the clinical, nutritional, and inflammatory status of TBI patients. Methods This is a double-blind, randomized controlled trial. Block randomization will be used. An intervention group will receive pycnogenol supplementation of 150 mg for 10 days and a control group will receive a placebo for the same duration. Inflammatory status (IL-6, IL- 1β, C-reactive protein) and oxidative stress status (malondialdehyde, total antioxidant capacity), at the baseline, at the 5th day, and at the end of the study (10th day) will be measured. Clinical and nutritional status will be assessed three times during the intervention. The Sequential Organ Failure Assessment (SOFA) questionnaire for assessment of organ failure will be filled out every other day. The mortality rate will be calculated within 28 days of the start of the intervention. Weight, body mass index, and body composition will be measured. All analyses will be conducted by an initially assigned study arm in an intention-to-treat analysis. Discussion We expect that supplementation of 150 mg pycnogenol for 10 days will improve clinical and nutritional status and reduce the inflammation and oxidative stress of the TBI patients. Trial registration This trial is registered at clinicaltrials.gov (ref: NCT03777683) at 12/13/2018.
Collapse
Affiliation(s)
- Mahsa Malekahmadi
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Nutrition Department, Faculty of Medicine, Mashhad University of Medical Sciences, Bahonar St, Mashhad, Iran
| | - Omid Moradi Moghaddam
- Trauma and Injury Research Center, Critical Care Department, Rasoul-e-Akram Complex Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Sheikh Mohammed Shariful Islam
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Melbourne, Australia
| | - Kiarash Tanha
- Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Mohsen Nematy
- Nutrition Department, Faculty of Medicine, Mashhad University of Medical Sciences, Bahonar St, Mashhad, Iran.,Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Naseh Pahlavani
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Nutrition Department, Faculty of Medicine, Mashhad University of Medical Sciences, Bahonar St, Mashhad, Iran
| | - Safieh Firouzi
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Nutrition Department, Faculty of Medicine, Mashhad University of Medical Sciences, Bahonar St, Mashhad, Iran
| | - Mohammad Reza Zali
- Behbood Research Center for Gastroenterology and Liver Diseases, Tehran, Iran
| | - Abdolreza Norouzy
- Nutrition Department, Faculty of Medicine, Mashhad University of Medical Sciences, Bahonar St, Mashhad, Iran. .,Behbood Research Center for Gastroenterology and Liver Diseases, Tehran, Iran.
| |
Collapse
|
13
|
Bodnar CN, Roberts KN, Higgins EK, Bachstetter AD. A Systematic Review of Closed Head Injury Models of Mild Traumatic Brain Injury in Mice and Rats. J Neurotrauma 2019; 36:1683-1706. [PMID: 30661454 PMCID: PMC6555186 DOI: 10.1089/neu.2018.6127] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Mild TBI (mTBI) is a significant health concern. Animal models of mTBI are essential for understanding mechanisms, and pathological outcomes, as well as to test therapeutic interventions. A variety of closed head models of mTBI that incorporate different aspects (i.e., biomechanics) of the mTBI have been reported. The aim of the current review was to compile a comprehensive list of the closed head mTBI rodent models, along with the common data elements, and outcomes, with the goal to summarize the current state of the field. Publications were identified from a search of PubMed and Web of Science and screened for eligibility following PRISMA guidelines. Articles were included that were closed head injuries in which the authors classified the injury as mild in rats or mice. Injury model and animal-specific common data elements, as well as behavioral and histological outcomes, were collected and compiled from a total of 402 articles. Our results outline the wide variety of methods used to model mTBI. We also discovered that female rodents and both young and aged animals are under-represented in experimental mTBI studies. Our findings will aid in providing context comparing the injury models and provide a starting point for the selection of the most appropriate model of mTBI to address a specific hypothesis. We believe this review will be a useful starting place for determining what has been done and what knowledge is missing in the field to reduce the burden of mTBI.
Collapse
Affiliation(s)
- Colleen N. Bodnar
- Department of Neuroscience, University of Kentucky, Lexington, Kentucky
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, Kentucky
| | - Kelly N. Roberts
- Department of Neuroscience, University of Kentucky, Lexington, Kentucky
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, Kentucky
| | - Emma K. Higgins
- Department of Neuroscience, University of Kentucky, Lexington, Kentucky
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, Kentucky
| | - Adam D. Bachstetter
- Department of Neuroscience, University of Kentucky, Lexington, Kentucky
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, Kentucky
| |
Collapse
|
14
|
Toklu HZ, Yang Z, Ersahin M, Wang KKW. Neurological Exam in Rats Following Stroke and Traumatic Brain Injury. Methods Mol Biol 2019; 2011:371-381. [PMID: 31273710 DOI: 10.1007/978-1-4939-9554-7_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Using the appropriate model for testing neurological symptoms in rats is essential for the assessment of functional outcome. A number of tests have been developed to quantify the severity of neurological deficits. These tests should meet criteria such as validity, specificity, sensitivity, and utility. Although analysis of motor function shows homology in primates and rodents, the total neurological exam scores may not always reflect the clinical outcome. Therefore, the selection of the appropriate tests has critical importance when evaluating therapeutic strategies. This chapter describes Toklu's modified neurological exam score method which can be used practically to assess neurological symptoms following traumatic brain injury (TBI) and stroke. The method is a combination of balance, muscle strength, coordination, and reflex.
Collapse
Affiliation(s)
- Hale Z Toklu
- University of Central Florida College of Medicine, Department of Clinical Sciences, Gainesville, FL, USA.
- HCA North Florida Division, Graduate Medical Education, Tallahassee, FL, USA.
| | - Zhiui Yang
- University of Florida, Department of Emergency Medicine, Gainesville, FL, USA
| | - Mehmet Ersahin
- Istanbul Medeniyet University, Department of Neurosurgery, Istanbul, Turkey
| | - Kevin K W Wang
- University of Florida, Department of Emergency Medicine, Gainesville, FL, USA
| |
Collapse
|
15
|
Gao W, Ju YN, Chen JF, Zhou Q, Song CY, Wang YZ, Cao HL, Yang WC. Adrenomedullin Reduces Secondary Injury and Improves Outcome in Rats with Fluid Percussion Brain Injury. World Neurosurg 2018; 119:e765-e773. [DOI: 10.1016/j.wneu.2018.07.265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/28/2018] [Accepted: 07/30/2018] [Indexed: 01/08/2023]
|
16
|
Zhao C, Dai L, Wang J, Jian Y, Mei Z, Pei X, Xiong X, Yuan W, Wu F. Beneficial Effects of Lipoic Acid on Post-burn Hypertrophic
Scarring Model. INT J PHARMACOL 2018. [DOI: 10.3923/ijp.2018.733.739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
17
|
Ramírez-Lamelas DT, Benlloch-Navarro S, López-Pedrajas R, Gimeno-Hernández R, Olivar T, Silvestre D, Miranda M. Lipoic Acid and Progesterone Alone or in Combination Ameliorate Retinal Degeneration in an Experimental Model of Hereditary Retinal Degeneration. Front Pharmacol 2018; 9:469. [PMID: 29867476 PMCID: PMC5954235 DOI: 10.3389/fphar.2018.00469] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/23/2018] [Indexed: 01/27/2023] Open
Abstract
Retinitis pigmentosa (RP) is a group of inherited retinopathies characterized by photoreceptors death. Our group has shown the positive progesterone (P4) actions on cell death progression in an experimental model of RP. In an effort to enhance the beneficial effects of P4, the aim of this study was to combine P4 treatment with an antioxidant [lipoic acid (LA)] in the rd1 mice. rd1 and control mice were treated with 100 mg/kg body weight of P4, LA, or a combination of both on postnatal day 7 (PN7), 9, and 11, and were sacrificed at PN11. The administration of LA and/or P4 diminishes cell death in rd1 retinas. The effect obtained after the combined administration of LA and P4 is higher than the one obtained with LA or P4 alone. The three treatments decreased GFAP staining, however, in the far peripheral retina, and the two treatments that offered better results were LA and LA plus P4. LA or LA plus P4 increased retinal glutathione (GSH) concentration in the rd1 mice. Although LA and P4 are able to protect photoreceptors from death in rd1 mice retinas, a better effectiveness is achieved when administering LA and P4 at the same time.
Collapse
Affiliation(s)
- Dolores T Ramírez-Lamelas
- Departamento Ciencias Biomédicas, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain
| | - Soledad Benlloch-Navarro
- Departamento Ciencias Biomédicas, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain
| | - Rosa López-Pedrajas
- Departamento Ciencias Biomédicas, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain.,Instituto de Ciencias Biomédicas, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain
| | - Roberto Gimeno-Hernández
- Departamento Ciencias Biomédicas, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain
| | - Teresa Olivar
- Departamento Ciencias Biomédicas, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain
| | - Dolores Silvestre
- Departamento Farmacia, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain
| | - María Miranda
- Departamento Ciencias Biomédicas, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain.,Instituto de Ciencias Biomédicas, Universidad CEU Cardenal Herrera, CEU Universities, Valencia, Spain
| |
Collapse
|
18
|
Kaya H, Sogüt O, Gokdemir MT, Albayrak L, Taskιn A. The Role of Oxidative Status in Initial Evaluation of Paediatric Patients with Graded Traumatic Brain Injury. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791302000406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction The purposes of this study were (a) to investigate the oxidative and antioxidative status in paediatric patients with varying severity of traumatic brain injury (TBI) during the early post-traumatic period; (b) to correlate injury severity with the oxidative and antioxidative status of patients; and (c) to identify early predictors of outcome in patients with TBI. Methods Fifty-two consecutive paediatric patients with isolated TBI and 31 age- and sex-matched healthy controls were enrolled. Patients were divided into two groups based on their Glasgow Coma Scale (GCS) scores recorded upon admission to the emergency department within the first 24 hours after injury. Twenty-three patients with moderate to severe TBI and 29 patients with mild TBI (GCS scores of >13) were included. The primary outcome variable was hospital mortality. Plasma total oxidant status (TOS), total antioxidant status (TAS), and the oxidative stress index (OSI) were assessed as predictors of early oxidative changes in serum using a novel automated measurement method. Results Compared to patients with mild TBI, TOS and OSI values were markedly elevated in patients with moderate to severe TBI. However, TAS levels did not show significant changes in either group of patients. Both GCS scores and Revised Trauma Scores were negatively correlated with the TOS and OSI, but neither was significantly correlated with the TAS. The TOS and OSI were significantly higher in non-survivors than in survivors. However, there was no significant difference in TAS levels between survivors and non-survivors. Conclusion Paediatric patients with isolated TBI are exposed to extensive oxidative stress, which varies with injury severity.
Collapse
Affiliation(s)
- H Kaya
- Harran University, Faculty of Medicine, Department of Emergency Medicine, Sanliurfa, Turkey
| | | | - MT Gokdemir
- Harran University, Faculty of Medicine, Department of Emergency Medicine, Sanliurfa, Turkey
| | - L Albayrak
- Harran University, Faculty of Medicine, Department of Emergency Medicine, Sanliurfa, Turkey
| | - A Taskιn
- Harran University, Faculty of Medicine, Department of Biochemistry, Sanliurfa, Turkey
| |
Collapse
|
19
|
Tudose M, Culita DC, Musuc AM, Somacescu S, Ghica C, Chifiriuc MC, Bleotu C. Lipoic acid functionalized SiO 2@Ag nanoparticles. Synthesis, characterization and evaluation of biological activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 28629046 DOI: 10.1016/j.msec.2017.05.083] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A novel nanocomposite was obtained through the covalent immobilization of lipoic acid on the surface of silver nanoparticles-decorated silica nanoparticles (SiO2@Ag). The hybrid organic - inorganic material obtained was characterized by Fourier transform infrared spectroscopy, thermal analysis, scanning and transmision electron microscopy, X-ray photoelectron spectroscopy and UV-Visible spectroscopy. Its antioxidant, cytotoxic, antimicrobial activity and influence on mammalian cells cycle were evaluated. The results of this study have shown that the functionalization of SiO2@Ag with lipoic acid resulted in a composite with increased specificity of interaction with different mammalian cell lines and antioxidant activity, but with decreased cytotoxicity and antimicrobial properties. Therefore, the SiO2@Ag functionalized with lipoic acid could be successfully used in certain concentrations to modulate the cell cycle, in order to obtain the desired anti-proliferative or stimulatory therapeutic effect.
Collapse
Affiliation(s)
- Madalina Tudose
- "Ilie Murgulescu" Institute of Physical Chemistry, Splaiul Independentei No. 202, 060021 Bucharest, Romania.
| | - Daniela Cristina Culita
- "Ilie Murgulescu" Institute of Physical Chemistry, Splaiul Independentei No. 202, 060021 Bucharest, Romania.
| | - Adina Magdalena Musuc
- "Ilie Murgulescu" Institute of Physical Chemistry, Splaiul Independentei No. 202, 060021 Bucharest, Romania
| | - Simona Somacescu
- "Ilie Murgulescu" Institute of Physical Chemistry, Splaiul Independentei No. 202, 060021 Bucharest, Romania
| | - Cornel Ghica
- National Institute of Materials Physics, Atomistilor Street No. 405A, 077125 Magurele, Romania
| | - Mariana Carmen Chifiriuc
- University of Bucharest, Faculty of Biology, Microbiology Immunology Department, Aleea Portocalelor No. 1-3, 060101 Bucharest, Romania
| | - Coralia Bleotu
- "Stefan S. Nicolau" Institute of Virology, Mihai Bravu Avenue No. 285, 030304 Bucharest, Romania
| |
Collapse
|
20
|
Lipoic acid prevents acrylamide-induced neurotoxicity in CD-1 mice and BV2 microglial cells via maintaining redox homeostasis. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.05.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
|
21
|
She DT, Jo DG, Arumugam TV. Emerging Roles of Sirtuins in Ischemic Stroke. Transl Stroke Res 2017; 8:10.1007/s12975-017-0544-4. [PMID: 28656393 DOI: 10.1007/s12975-017-0544-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 06/02/2017] [Accepted: 06/06/2017] [Indexed: 12/13/2022]
Abstract
Ischemic stroke is one of the leading causes of death worldwide. It is characterized by a sudden disruption of blood flow to the brain causing cell death and damage, which will lead to neurological impairments. In the current state, only one drug is approved to be used in clinical setting and new therapies that confer ischemic neuroprotection are desperately needed. Several targets and pathways have been indicated to be neuroprotective in ischemic stroke, among which the sirtuin family of nicotinamide adenine dinucleotide (NAD+)-dependent deacetylases has emerged as important modulators of several processes in the normal physiology and pathological conditions such as stroke. Recent studies have identified some members of the sirtuin family are able to ameliorate the devastating consequences of ischemic stroke by conferring neuroprotection by means of reducing neuronal cell death, oxidative stress, and neuroinflammation whereas some sirtuins are found to be detrimental in the pathophysiology of ischemic stroke. This review summarizes implications of sirtuins in ischemic stroke and the experimental evidences that demonstrate the potential of sirtuin modulators as neuroprotective therapy for ischemic stroke.
Collapse
Affiliation(s)
- David T She
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Neurobiology/Ageing Programme, Life Sciences Institute, National University of Singapore, Singapore, 117456, Singapore
| | - Dong-Gyu Jo
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Thiruma V Arumugam
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.
- Neurobiology/Ageing Programme, Life Sciences Institute, National University of Singapore, Singapore, 117456, Singapore.
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| |
Collapse
|
22
|
Soleimannejad K, Rahmani A, Hatefi M, Khataminia M, Hafezi Ahmadi MR, Asadollahi K. Effects of Nigella sativa Extract on Markers of Cerebral Angiogenesis after Global Ischemia of Brain in Rats. J Stroke Cerebrovasc Dis 2017; 26:1514-1520. [PMID: 28396188 DOI: 10.1016/j.jstrokecerebrovasdis.2017.02.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 02/15/2017] [Accepted: 02/25/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Reduction of permanent or transient cerebral blood flow may lead to some structural and functional changes of the brain, causing high mortality and morbidity. The aim of this experimental study was to investigate the effects of hydroalcoholic extract of Nigella sativa (NS) on markers of cerebral angiogenesis in rats induced by global brain ischemia. METHODS Thirty-two male Wistar rats (250 ± 20 g) were randomly divided into 4 groups: group 1, control group receiving only normal saline; group 2, sham group undergoing surgery and stroke induction without treatment; and groups 3 and 4 treated with 10 and 20 mg/kg NS, respectively, after induction of stroke. Global ischemia was induced by ligation of the right carotid artery for 20 minutes. RESULTS According to the results of this study, brain edema and infarct volume were significantly decreased in the group treated with 20 mg/kg NS compared with the group treated with 10 mg/kg NS (P < .05). Global ischemia caused a significant reduction in gene expression of vasoactive endothelial growth factor (VEGF) and hypoxia-inducible factor (HIF) in the sham group compared with the control group (P < .05), but NS groups, in led to a significant increase in gene expression of VEGF and HIF compared with the sham group (P < .05). In addition, the activity level of matrix metallopeptidase-9 was decreased among NS groups compared with the control group (P < .05). CONCLUSIONS Application of NS extract among rats with brain ischemia is associated with increase of VEGF and HIF as angiogenic markers and inhibition of matrix metallopeptidase-9 activities.
Collapse
Affiliation(s)
- Koroush Soleimannejad
- Department of Cardiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Asghar Rahmani
- Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Masoud Hatefi
- Department of Neurosurgery, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Masoud Khataminia
- Department of Pharmacology, Faculty of Pharmacy, Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Khairollah Asadollahi
- Department of Social Medicine, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran.
| |
Collapse
|
23
|
Paradells-Navarro S, Benlloch-Navarro MS, Almansa Frias MI, Garcia-Esparza MA, Broccoli V, Miranda M, Soria JM. Neuroprotection of Brain Cells by Lipoic Acid Treatment after Cellular Stress. ACS Chem Neurosci 2017; 8:569-577. [PMID: 27935686 DOI: 10.1021/acschemneuro.6b00306] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
We have previously observed that in vivo lipoic acid (LA) treatment induced a protective effect onto primary cortical neurons after brain injury. In an effort to better understand LA action mechanism in the brain, in the present study, we stressed brain cells in vitro and ex vivo and then analyzed by inmmunocytochemistry and biochemical assays, the changes induced by LA on cell survival and on the concentration of oxidative stress markers, such as glutathione (GSH), oxidized glutathione (GSSG), and malondialdehyde (MDA). The stressors used were lipopolysaccharide (LPS), dopamine, and l-buthionine-S,R-sulfoximine (BSO). Our results showed that LA decreased cell death and increased GSH/GSSG ratio in cells stressed by LPS + dopamine, suggesting that the mechanism underlying LA action is regeneration of GSSG to GSH. When cells were stressed by BSO, LA diminished cell death and decreased GSH/GSSG ratio. In this case, it could be concluded that, due to the low GSH basal levels, GSSG reduction is not possible and therefore it might be thought that cell death prevention might be mediated through other mechanisms. Finally, we induced chemical oxidative damage in brain homogenate. After LA treatment, GSH and GSH/GSSG ratio increased and MDA concentration decreased, demonstrating again that LA was not able to increase de novo GSH synthesis but is able to increase GSSG conversion to GSH.
Collapse
|
24
|
Gerbatin RDR, Cassol G, Dobrachinski F, Ferreira APO, Quines CB, Pace IDD, Busanello GL, Gutierres JM, Nogueira CW, Oliveira MS, Soares FA, Morsch VM, Fighera MR, Royes LFF. Guanosine Protects Against Traumatic Brain Injury-Induced Functional Impairments and Neuronal Loss by Modulating Excitotoxicity, Mitochondrial Dysfunction, and Inflammation. Mol Neurobiol 2016; 54:7585-7596. [PMID: 27830534 DOI: 10.1007/s12035-016-0238-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 10/17/2016] [Indexed: 12/22/2022]
Abstract
Traumatic brain injury (TBI) is one of the most common types of brain injuries that cause death or persistent neurological disturbances in survivors. Most of the promising experimental drugs were not effective in clinical trials; therefore, the development of TBI drugs represents a huge unmet need. Guanosine, an endogenous neuroprotective nucleoside, has not been evaluated in TBI to the best of our knowledge. Therefore, the present study evaluated the effect of guanosine on TBI-induced neurological damage. Our findings showed that a single dose of guanosine (7.5 mg/kg, intraperitoneally (i.p.) injected 40 min after fluid percussion injury (FPI) in rats protected against locomotor and exploratory impairments 8 h after injury. The treatment also protected against neurochemical damage to the ipsilateral cortex, glutamate uptake, Na+/K+-ATPase, glutamine synthetase activity, and alterations in mitochondrial function. The inflammatory response and brain edema were also reduced by this nucleoside. In addition, guanosine protected against neuronal death and caspase 3 activation. Therefore, this study suggests that guanosine plays a neuroprotective role in TBI and can be exploited as a new pharmacological strategy.
Collapse
Affiliation(s)
- Rogério da Rosa Gerbatin
- Laboratório de Bioquímica do Exercício, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| | - Gustavo Cassol
- Laboratório de Bioquímica do Exercício, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Fernando Dobrachinski
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Ana Paula O Ferreira
- Laboratório de Bioquímica do Exercício, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Caroline B Quines
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Iuri D Della Pace
- Laboratório de Bioquímica do Exercício, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Guilherme L Busanello
- Laboratório de Bioquímica do Exercício, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Jessié M Gutierres
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Cristina W Nogueira
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Mauro S Oliveira
- Laboratório de Neurotoxicidade e Psicofarmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Félix A Soares
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Vera M Morsch
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Michele R Fighera
- Laboratório de Bioquímica do Exercício, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
- Departamento de Neuropsiquiatria, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Luiz Fernando F Royes
- Laboratório de Bioquímica do Exercício, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| |
Collapse
|
25
|
Ekiz A, Özdemir-Kumral ZN, Erşahin M, Tuğtepe H, Öğünç AV, Akakın D, Kıran D, Özsavcı D, Biber N, Hakan T, Yeğen BÇ, Şener G, Toklu HZ. Functional and structural changes of the urinary bladder following spinal cord injury; treatment with alpha lipoic acid. Neurourol Urodyn 2016; 36:1061-1068. [PMID: 27490041 DOI: 10.1002/nau.23083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 07/09/2016] [Indexed: 11/05/2022]
Abstract
BACKGROUND & AIM Alpha lipoic acid (LA) was shown to exert neuroprotection in trauma-induced spinal cord injury (SCI), which is frequently associated with urinary bladder complaints in patients with SCI. Accordingly, the protective effects of LA on biochemical and histological changes in bladder as well as functional studies were assessed. METHODS Wistar albino rats were divided as control, SCI, and LA (50 mg/kg/day, ip) treated SCI groups (SCI+LA). The standard weight-drop (100 g/cm force at T10) method was used to induce a moderately severe SCI. One week after the injury, neurological examination was performed and the rats were decapitated. Bladder samples were taken for histological examination, functional (isolated tissue bath) studies, and for the measurement of biochemical parameters (malondialdehyde, MDA; gluthathione, GSH; nerve growth factor, NGF; caspase-3, luminol and lucigenin chemiluminescences). RESULTS SCI caused a significant (P < 0.001) increase in the detrusor muscle thickness. It increased the contractility responses to carbachol and relaxation responses to papaverine (P < 0.05-0.001). There were also significant alterations in MDA, caspase-3, luminol, and lucigenin chemiluminescences with concomitant decreases in NGF and GSH (P < 0.05). LA treatment reversed histological and functional (contraction and relaxation responses) changes induced by SCI (P < 0.05-0.001), but no significant recovery was observed in the impaired neurological functions. CONCLUSION These results indicate that LA have a beneficial effect in improving the bladder tonus via its antioxidant and anti-inflammatory actions following SCI.
Collapse
Affiliation(s)
- Arif Ekiz
- Department of Pharmacology, School of Pharmacy, Marmara University, Istanbul, Turkey
| | | | - Mehmet Erşahin
- Department of Neurosurgery, School of Medicine, Medeniyet University, Istanbul, Turkey
| | - Halil Tuğtepe
- Department of Pediatric Surgery, School of Medicine, Marmara University, Istanbul, Turkey
| | - Ayliz Velioğlu Öğünç
- Vocational School of Health Related Professions, Marmara University, Istanbul, Turkey
| | - Dilek Akakın
- Department of Histology and Embryology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Demir Kıran
- Department of Histology and Embryology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Derya Özsavcı
- Department of Biochemistry, School of Pharmacy, Marmara University, Istanbul, Turkey
| | - Necat Biber
- Department of Neurosurgery, Haydarpasa Numune Teaching and Research Hospital, Istanbul, Turkey
| | - Tayfun Hakan
- Department of Neurosurgery, Okan University, Vocational School of Health Services, Kolan International Hospital, Istanbul, Turkey
| | - Berrak Ç Yeğen
- Department of Physiology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Göksel Şener
- Department of Pharmacology, School of Pharmacy, Marmara University, Istanbul, Turkey
| | - Hale Z Toklu
- Department of Pharmacology and Therapeutics, University of Florida College of Medicine, Gainesville, Florida.,Geriatric Research Education and Clinical Center, Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida
| |
Collapse
|
26
|
Lucke-Wold BP, Naser ZJ, Logsdon AF, Turner RC, Smith KE, Robson MJ, Bailes JE, Lee JM, Rosen CL, Huber JD. Amelioration of nicotinamide adenine dinucleotide phosphate-oxidase mediated stress reduces cell death after blast-induced traumatic brain injury. Transl Res 2015; 166:509-528.e1. [PMID: 26414010 DOI: 10.1016/j.trsl.2015.08.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 07/29/2015] [Accepted: 08/12/2015] [Indexed: 02/08/2023]
Abstract
A total of 1.7 million traumatic brain injuries (TBIs) occur each year in the United States, but available pharmacologic options for the treatment of acute neurotrauma are limited. Oxidative stress is an important secondary mechanism of injury that can lead to neuronal apoptosis and subsequent behavioral changes. Using a clinically relevant and validated rodent blast model, we investigated how nicotinamide adenine dinucleotide phosphate oxidase (Nox) expression and associated oxidative stress contribute to cellular apoptosis after single and repeat blast injuries. Nox4 forms a complex with p22phox after injury, forming free radicals at neuronal membranes. Using immunohistochemical-staining methods, we found a visible increase in Nox4 after single blast injury in Sprague Dawley rats. Interestingly, Nox4 was also increased in postmortem human samples obtained from athletes diagnosed with chronic traumatic encephalopathy. Nox4 activity correlated with an increase in superoxide formation. Alpha-lipoic acid, an oxidative stress inhibitor, prevented the development of superoxide acutely and increased antiapoptotic markers B-cell lymphoma 2 (t = 3.079, P < 0.05) and heme oxygenase 1 (t = 8.169, P < 0.001) after single blast. Subacutely, alpha-lipoic acid treatment reduced proapoptotic markers Bax (t = 4.483, P < 0.05), caspase 12 (t = 6.157, P < 0.001), and caspase 3 (t = 4.573, P < 0.01) after repetitive blast, and reduced tau hyperphosphorylation indicated by decreased CP-13 and paired helical filament staining. Alpha-lipoic acid ameliorated impulsive-like behavior 7 days after repetitive blast injury (t = 3.573, P < 0.05) compared with blast exposed animals without treatment. TBI can cause debilitating symptoms and psychiatric disorders. Oxidative stress is an ideal target for neuropharmacologic intervention, and alpha-lipoic acid warrants further investigation as a therapeutic for prevention of chronic neurodegeneration.
Collapse
Affiliation(s)
- Brandon P Lucke-Wold
- Department of Neurosurgery, West Virginia University School of Medicine, Morgantown, WVa; The Center for Neuroscience, West Virginia University School of Medicine, Morgantown, WVa
| | - Zachary J Naser
- Department of Neurosurgery, West Virginia University School of Medicine, Morgantown, WVa; The Center for Neuroscience, West Virginia University School of Medicine, Morgantown, WVa; Department of Medicine, Professional Studies in Health Sciences, Drexel University College of Medicine, Philadelphia, PA
| | - Aric F Logsdon
- The Center for Neuroscience, West Virginia University School of Medicine, Morgantown, WVa; Department of Basic Pharmaceutical Sciences, West Virginia University School of Pharmacy, Morgantown, WVa
| | - Ryan C Turner
- Department of Neurosurgery, West Virginia University School of Medicine, Morgantown, WVa; The Center for Neuroscience, West Virginia University School of Medicine, Morgantown, WVa
| | - Kelly E Smith
- The Center for Neuroscience, West Virginia University School of Medicine, Morgantown, WVa; Department of Basic Pharmaceutical Sciences, West Virginia University School of Pharmacy, Morgantown, WVa
| | - Matthew J Robson
- Department of Basic Pharmaceutical Sciences, West Virginia University School of Pharmacy, Morgantown, WVa; Department of Pharmacology, School of Medicine, Vanderbilt University, Nashville, Tenn
| | - Julian E Bailes
- Department of Neurosurgery, NorthShore University HealthSystem, University of Chicago Pritzker School of Medicine, Evanston, Ill
| | - John M Lee
- Department of Pathology, NorthShore University HealthSystem, University of Chicago Pritzker School of Medicine, Evanston, Ill
| | - Charles L Rosen
- Department of Neurosurgery, West Virginia University School of Medicine, Morgantown, WVa; The Center for Neuroscience, West Virginia University School of Medicine, Morgantown, WVa
| | - Jason D Huber
- The Center for Neuroscience, West Virginia University School of Medicine, Morgantown, WVa; Department of Basic Pharmaceutical Sciences, West Virginia University School of Pharmacy, Morgantown, WVa.
| |
Collapse
|
27
|
Abdul-Muneer PM, Pfister BJ, Haorah J, Chandra N. Role of Matrix Metalloproteinases in the Pathogenesis of Traumatic Brain Injury. Mol Neurobiol 2015; 53:6106-6123. [PMID: 26541883 DOI: 10.1007/s12035-015-9520-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 10/28/2015] [Indexed: 12/17/2022]
Abstract
Traumatic brain injury (TBI) is a major cause of mortality and morbidity worldwide. Studies revealed that the pathogenesis of TBI involves upregulation of MMPs. MMPs form a large family of closely related zinc-dependent endopeptidases, which are primarily responsible for the dynamic remodulation of the extracellular matrix (ECM). Thus, they are involved in several normal physiological processes like growth, development, and wound healing. During pathophysiological conditions, MMPs proteolytically degrade various components of ECM and tight junction (TJ) proteins of BBB and cause BBB disruption. Impairment of BBB causes leakiness of the blood from circulation to brain parenchyma that leads to microhemorrhage and edema. Further, MMPs dysregulate various normal physiological processes like angiogenesis and neurogenesis, and also they participate in the inflammatory and apoptotic cascades by inducing or regulating the specific mediators and their receptors. In this review, we explore the roles of MMPs in various physiological/pathophysiological processes associated with neurological complications, with special emphasis on TBI.
Collapse
Affiliation(s)
- P M Abdul-Muneer
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA.
| | - Bryan J Pfister
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - James Haorah
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Namas Chandra
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| |
Collapse
|
28
|
Lebda MA, Gad SB, Rashed RR. The effect of lipoic acid on acrylamide-induced neuropathy in rats with reference to biochemical, hematological, and behavioral alterations. PHARMACEUTICAL BIOLOGY 2015; 53:1207-1213. [PMID: 25853975 DOI: 10.3109/13880209.2014.970288] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Acrylamide (ACR) is a well-known neurotoxicant and carcinogenic agent which poses a greater risk for human and animal health. OBJECTIVE The present study evaluates the beneficial effects of α-lipoic acid (LA) on ACR-induced neuropathy. MATERIALS AND METHODS A total of 40 male rats were divided into four groups: a placebo group; LA-treated group, administered orally 1% (w/w) LA mixed with diet; ACR-treated group, given 0.05% (w/v) ACR dissolved in drinking water; and LA + ACR-treated group, given LA 1% 7 d before and along with ACR 0.05% for 21 d. After 28 d, blood samples were collected, the rats were decapitated, and the tissues were excised for the measurement of brain biomarkers, antioxidant status, and hematological analysis. Also, the gait score of rats was evaluated. RESULTS ACR-exposed rats exhibited abnormal gait deficits with significant (p < 0.05) decline in acetylcholine esterase (AChE) and creatine kinase in serum and brain tissues, respectively. However, the lactate dehydrogenase activity was increased in serum by 123%, although it decreased in brain tissues by -74%. ACR significantly (p < 0.05) increased the malondialdehyde level by 273% with subsequent depletion of glutathione S-transferase (GST), glutathione peroxidase (GPx), and glutathione reductase (GR) activities and reduced the glutathione (GSH) level in brain tissue. Interestingly, LA significantly (p < 0.05) improved brain enzymatic biomarkers, attenuated lipid peroxidation (LPO), and increased antioxidant activities compared with the ACR-treated group. DISCUSSION AND CONCLUSION These results suggested that LA may have a role in the management of ACR-induced oxidative stress in brain tissues through its antioxidant activity, attenuation of LPO, and improvement of brain biomarkers.
Collapse
|
29
|
Wei W, Wang H, Wu Y, Ding K, Li T, Cong Z, Xu J, Zhou M, Huang L, Ding H, Wu H. Alpha lipoic acid inhibits neural apoptosis via a mitochondrial pathway in rats following traumatic brain injury. Neurochem Int 2015; 87:85-91. [PMID: 26055972 DOI: 10.1016/j.neuint.2015.06.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 05/28/2015] [Accepted: 06/03/2015] [Indexed: 11/18/2022]
Abstract
Alpha lipoic acid (ALA) is a powerful antioxidant that has proven protective effects against brain damage following a traumatic brain injury (TBI) in rats. However, the molecular mechanisms underlying these effects are not well understood. This study investigated the effect of ALA on neural apoptosis and the potential mechanism of these effects in the weight-drop model of TBI in male Sprague-Dawley rats that were treated with ALA (20 or 100 mg/kg) or vehicle via intragastric administration 30 min after TBI. Brain samples were collected 48 h later for analysis. ALA treatment resulted in a downregulation of caspase-3 expression, reduced the number of positive cells in the terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling assay and improved neuronal survival. Furthermore, the level of malondialdehyde and glutathione peroxidase activity were restored, while Bcl-2-associated X protein translocation to mitochondria and cytochrome c release into the cytosol were reduced by ALA treatment. These results demonstrate that ALA improves neurological outcome in rats by protecting neural cell against apoptosis via a mechanism that involves the mitochondria following TBI.
Collapse
Affiliation(s)
- Wuting Wei
- Department of Neurosurgery, School of Medicine, Southern Medical University (Guangzhou), Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| | - Handong Wang
- Department of Neurosurgery, School of Medicine, Southern Medical University (Guangzhou), Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China.
| | - Yong Wu
- Department of Neurosurgery, School of Medicine, Nanjing University, Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| | - Ke Ding
- Department of Neurosurgery, School of Medicine, Nanjing University, Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| | - Tao Li
- Department of Neurosurgery, School of Medicine, Nanjing University, Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| | - Zixiang Cong
- Department of Neurosurgery, School of Medicine, Nanjing University, Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| | - Jianguo Xu
- Department of Neurosurgery, School of Medicine, Nanjing University, Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| | - Mengliang Zhou
- Department of Neurosurgery, School of Medicine, Nanjing University, Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| | - Litian Huang
- Department of Neurosurgery, School of Medicine, Southern Medical University (Guangzhou), Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| | - Hui Ding
- Department of Neurosurgery, School of Medicine, Southern Medical University (Guangzhou), Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| | - Heming Wu
- Department of Neurosurgery, School of Medicine, Nanjing University, Jinling Hospital, 305 East Zhongshan Road, Nanjing, Jiangsu Province 210002, China
| |
Collapse
|
30
|
Traumatic brain injury and NADPH oxidase: a deep relationship. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:370312. [PMID: 25918580 PMCID: PMC4397034 DOI: 10.1155/2015/370312] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 03/18/2015] [Indexed: 12/21/2022]
Abstract
Traumatic brain injury (TBI) represents one of the major causes of mortality and disability in the world.
TBI is characterized by primary damage resulting from the mechanical forces applied to the head as a direct result of the trauma and by the subsequent secondary injury due to a complex cascade of biochemical events that eventually lead to neuronal cell death. Oxidative stress plays a pivotal role in the genesis of the delayed harmful effects contributing to permanent damage. NADPH oxidases (Nox), ubiquitary membrane multisubunit enzymes whose unique function is the production of reactive oxygen species (ROS), have been shown to be a major source of ROS in the brain and to be involved in several neurological diseases. Emerging evidence demonstrates that Nox is upregulated after TBI, suggesting Nox critical role in the onset and development of this pathology.
In this review, we summarize the current evidence about the role of Nox enzymes in the pathophysiology of TBI.
Collapse
|
31
|
Henderson TA, Morries LD. Near-infrared photonic energy penetration: can infrared phototherapy effectively reach the human brain? Neuropsychiatr Dis Treat 2015; 11:2191-208. [PMID: 26346298 PMCID: PMC4552256 DOI: 10.2147/ndt.s78182] [Citation(s) in RCA: 227] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Traumatic brain injury (TBI) is a growing health concern effecting civilians and military personnel. Research has yielded a better understanding of the pathophysiology of TBI, but effective treatments have not been forthcoming. Near-infrared light (NIR) has shown promise in animal models of both TBI and stroke. Yet, it remains unclear if sufficient photonic energy can be delivered to the human brain to yield a beneficial effect. This paper reviews the pathophysiology of TBI and elaborates the physiological effects of NIR in the context of this pathophysiology. Pertinent aspects of the physical properties of NIR, particularly in regards to its interactions with tissue, provide the background for understanding this critical issue of light penetration through tissue. Our recent tissue studies demonstrate no penetration of low level NIR energy through 2 mm of skin or 3 cm of skull and brain. However, at 10-15 W, 0.45%-2.90% of 810 nm light penetrated 3 cm of tissue. A 15 W 810 nm device (continuous or non-pulsed) NIR delivered 2.9% of the surface power density. Pulsing at 10 Hz reduced the dose of light delivered to the surface by 50%, but 2.4% of the surface energy reached the depth of 3 cm. Approximately 1.22% of the energy of 980 nm light at 10-15 W penetrated to 3 cm. These data are reviewed in the context of the literature on low-power NIR penetration, wherein less than half of 1% of the surface energy could reach a depth of 1 cm. NIR in the power range of 10-15 W at 810 and 980 nm can provide fluence within the range shown to be biologically beneficial at 3 cm depth. A companion paper reviews the clinical data on the treatment of patients with chronic TBI in the context of the current literature.
Collapse
Affiliation(s)
- Theodore A Henderson
- The Synaptic Space, Centennial, CO, USA ; Neuro-Laser Foundation, Lakewood, CO, USA
| | | |
Collapse
|
32
|
Role of melatonin in traumatic brain injury and spinal cord injury. ScientificWorldJournal 2014; 2014:586270. [PMID: 25587567 PMCID: PMC4283270 DOI: 10.1155/2014/586270] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/11/2014] [Accepted: 11/14/2014] [Indexed: 01/03/2023] Open
Abstract
Brain and spinal cord are implicated in incidences of two of the most severe injuries of central nervous system (CNS). Traumatic brain injury (TBI) is a devastating neurological deficit involving primary and secondary injury cascades. The primary and secondary mechanisms include complex consequences of activation of proinflammatory cytokines, cerebral edema, upregulation of NF-κβ, disruption of blood-brain barrier (BBB), and oxidative stress. Spinal cord injury (SCI) includes primary and secondary injury cascades. Primary injury leads to secondary injury in which generation of free radicals and oxidative or nitrative damage play an important pathophysiological role. The indoleamine melatonin is a hormone secreted or synthesized by pineal gland in the brain which helps to regulate sleep and wake cycle. Melatonin has been shown to be a versatile hormone having antioxidative, antiapoptotic, neuroprotective, and anti-inflammatory properties. It has a special characteristic of crossing BBB. Melatonin has neuroprotective role in the injured part of the CNS after TBI and SCI. A number of studies have successfully shown its therapeutic value as a neuroprotective agent in the treatment of neurodegenerative diseases. Here in this review we have compiled the literature supporting consequences of CNS injuries, TBI and SCI, and the protective role of melatonin in it.
Collapse
|
33
|
Ozbal S, Cankurt U, Tugyan K, Pekcetin C, Sisman A, Gunduz K, Micili S. The effects of α-lipoic acid on immature rats with traumatic brain injury. Biotech Histochem 2014; 90:206-15. [DOI: 10.3109/10520295.2014.977950] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
34
|
Paradells S, Zipancic I, Martínez-Losa MM, García Esparza MÁ, Bosch-Morell F, Alvarez-Dolado M, Soria JM. Lipoic acid and bone marrow derived cells therapy induce angiogenesis and cell proliferation after focal brain injury. Brain Inj 2014; 29:380-95. [PMID: 25384090 DOI: 10.3109/02699052.2014.973448] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
UNLABELLED Abstract Introduction: Traumatic brain injury is a main cause of disability and death in developed countries, above all among children and adolescents. The intrinsic inability of the central nervous system to efficiently repair traumatic injuries renders transplantation of bone marrow-derived cells (BMDC) a promising approach towards repair of brain lesions. On the other hand, many studies have reported the beneficial effect of Lipoic acid (LA), a potent antioxidant promoting cell survival, angiogenesis and neuroregeneration. METHODS In this study, the cortex of adult mice was cryo-injured in order to mimic local traumatic brain injury. Vehicle or freshly prepared BMDC were grafted in the cerebral penumbra area 24 hours after unilateral local injury alone or combined with intra-peritoneal LA administration as a new regenerative strategy. RESULTS Differences were found in the process of cell proliferation, angiogenesis and glial scar formation after local injury depending of the applied treatment, either LA or BMDC alone or in combination. CONCLUSION The data presented here suggest that transplantation of BMDC is a good alternative and valid strategy to treat a focal brain injury when LA could not be prescribed due to its non-desired secondary effects.
Collapse
Affiliation(s)
- Sara Paradells
- Departamento de Ciencias Biomédicas, Universidad CEU Cardenal Herrera , Moncada , Spain
| | | | | | | | | | | | | |
Collapse
|
35
|
Campos-Bedolla P, Walter FR, Veszelka S, Deli MA. Role of the Blood–Brain Barrier in the Nutrition of the Central Nervous System. Arch Med Res 2014; 45:610-38. [DOI: 10.1016/j.arcmed.2014.11.018] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 11/24/2014] [Indexed: 12/22/2022]
|
36
|
Interactions of Oxidative Stress and Neurovascular Inflammation in the Pathogenesis of Traumatic Brain Injury. Mol Neurobiol 2014; 51:966-79. [DOI: 10.1007/s12035-014-8752-3] [Citation(s) in RCA: 261] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 05/13/2014] [Indexed: 12/12/2022]
|
37
|
Scumpia PO, Kelly-Scumpia K, Stevens BR. Alpha-lipoic acid effects on brain glial functions accompanying double-stranded RNA antiviral and inflammatory signaling. Neurochem Int 2013; 64:55-63. [PMID: 24269587 DOI: 10.1016/j.neuint.2013.11.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 10/23/2013] [Accepted: 11/03/2013] [Indexed: 12/19/2022]
Abstract
Double-stranded RNAs (dsRNA) serve as viral ligands that trigger innate immunity in astrocytes and microglial, as mediated through Toll-like receptor 3 (TLR3) and dsRNA-dependent protein kinase (PKR). Beneficial transient TLR3 and PKR anti-viral signaling can become deleterious when events devolve into inflammation and cytotoxicity. Viral products in the brain cause glial cell dysfunction, and are a putative etiologic factor in neuropsychiatric disorders, notably schizophrenia, bipolar disorder, Parkinson's, and autism spectrum. Alpha-lipoic acid (LA) has been proposed as a possible therapeutic neuroprotectant. The objective of this study was to test our hypothesis that LA can control untoward antiviral mechanisms associated with neural dysfunction. Utilizing rat brain glial cultures (91% astrocytes:9% microglia) treated with PKR- and TLR3-ligand/viral mimetic dsRNA, polyinosinic-polycytidylic acid (polyI:C), we report in vitro glial antiviral signaling and LA reduction of the effects of this signaling. LA blunted the dsRNA-stimulated expression of IFNα/β-inducible genes Mx1, PKR, and TLR3. And in polyI:C treated cells, LA promoted gene expression of rate-limiting steps that benefit healthy neural redox status in glutamateric systems. To this end, LA decreased dsRNA-induced inflammatory signaling by downregulating IL-1β, IL-6, TNFα, iNOS, and CAT2 transcripts. In the presence of polyI:C, LA prevented cultured glial cytotoxicity which was correlated with increased expression of factors known to cooperatively control glutamate/cystine/glutathione redox cycling, namely glutamate uptake transporter GLAST/EAAT1, γ-glutamyl cysteine ligase catalytic and regulatory subunits, and IL-10. Glutamate exporting transporter subunits 4F2hc and xCT were downregulated by LA in dsRNA-stimulated glia. l-Glutamate net uptake was inhibited by dsRNA, and this was relieved by LA. Glutathione synthetase mRNA levels were unchanged by dsRNA or LA. This study demonstrates the protective effects of LA in astroglial/microglial cultures, and suggests the potential for LA efficacy in virus-induced CNS pathologies, with the caveat that antiviral benefits are concomitantly blunted. It is concluded that LA averts key aspects of TLR3- and PKR-provoked glial dysfunction, and provides rationale for exploring LA in whole animal and human clinical studies to blunt or avert neuropsychiatric disorders.
Collapse
Affiliation(s)
- Philip O Scumpia
- University of Florida, College of Medicine, Department of Physiology and Functional Genomics, USA
| | - Kindra Kelly-Scumpia
- University of Florida, College of Medicine, Department of Physiology and Functional Genomics, USA
| | - Bruce R Stevens
- University of Florida, College of Medicine, Department of Physiology and Functional Genomics, USA.
| |
Collapse
|
38
|
Lipoic acid treatment after brain injury: study of the glial reaction. Clin Dev Immunol 2013; 2013:521939. [PMID: 24302959 PMCID: PMC3835578 DOI: 10.1155/2013/521939] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/25/2013] [Accepted: 09/30/2013] [Indexed: 01/11/2023]
Abstract
After trauma brain injury, oxidative substances released to the medium provoke an enlargement of the initial lesion, increasing glial cell activation and, occasionally, an influx of immune cells into the central nervous system, developing the secondary damage.
In response to these stimuli, microglia are activated to perform upregulation of intracellular enzymes and cell surface markers to propagate the immune response and phagocytosis of cellular debris. The phagocytosis of debris and dead cells is essential to limit the inflammatory reaction and potentially prevent extension of the damage to noninjured regions. Lipoic acid has been reported as a neuroprotectant by acting as an antioxidant and anti-inflammatory agent. Furthermore, angiogenic effect promoted by lipoic acid has been recently shown by our group as a crucial process for neural regeneration after brain injury. In this work, we focus our attention on the lipoic acid effect on astroglial and microglial response after brain injury.
Collapse
|
39
|
Ferreira APO, Rodrigues FS, Della-Pace ID, Mota BC, Oliveira SM, Velho Gewehr CDC, Bobinski F, de Oliveira CV, Brum JS, Oliveira MS, Furian AF, de Barros CSL, Ferreira J, Santos ARSD, Fighera MR, Royes LFF. The effect of NADPH-oxidase inhibitor apocynin on cognitive impairment induced by moderate lateral fluid percussion injury: role of inflammatory and oxidative brain damage. Neurochem Int 2013; 63:583-93. [PMID: 24076474 DOI: 10.1016/j.neuint.2013.09.012] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 09/07/2013] [Accepted: 09/16/2013] [Indexed: 12/25/2022]
Abstract
Traumatic brain injury (TBI) is a devastating disease that commonly causes persistent mental disturbances and cognitive deficits. Although studies have indicated that overproduction of free radicals, especially superoxide (O2(-)) derived from nicotinamide adenine dinucleotide phosphate (NADPH) oxidase is a common underlying mechanism of pathophysiology of TBI, little information is available regarding the role of apocynin, an NADPH oxidase inhibitor, in neurological consequences of TBI. Therefore, the present study evaluated the therapeutic potential of apocynin for treatment of inflammatory and oxidative damage, in addition to determining its action on neuromotor and memory impairments caused by moderate fluid percussion injury in mice (mLFPI). Statistical analysis revealed that apocynin (5mg/kg), when injected subcutaneously (s.c.) 30min and 24h after injury, had no effect on neuromotor deficit and brain edema, however it provided protection against mLFPI-induced object recognition memory impairment 7days after neuronal injury. The same treatment protected against mLFPI-induced IL-1β, TNF-α, nitric oxide metabolite content (NOx) 3 and 24h after neuronal injury. Moreover, apocynin treatment reduced oxidative damage (protein carbonyl, lipoperoxidation) and was effective against mLFPI-induced Na(+), K(+)-ATPase activity inhibition. The present results were accompanied by effective reduction in lesion volume when analyzed 7days after neuronal injury. These data suggest that superoxide (O2(-)) derived from NADPH oxidase can contribute significantly to cognitive impairment, and that the post injury treatment with specific NADPH oxidase inhibitors, such as apocynin, may provide a new therapeutic approach to the control of neurological disabilities induced by TBI.
Collapse
Affiliation(s)
- Ana Paula Oliveira Ferreira
- Laboratório de Bioquímica do Exercício, Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós - Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Fernanda Silva Rodrigues
- Laboratório de Bioquímica do Exercício, Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós - Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Iuri Domingues Della-Pace
- Laboratório de Bioquímica do Exercício, Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós - Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Bibiana Castagna Mota
- Laboratório de Bioquímica do Exercício, Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós - Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Sara Marchesan Oliveira
- Programa de Pós - Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Camila de Campos Velho Gewehr
- Programa de Pós - Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Franciane Bobinski
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianólpolis, SC, Brazil
| | - Clarissa Vasconcelos de Oliveira
- Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Juliana Sperotto Brum
- Departamento de Patologia, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Mauro Schneider Oliveira
- Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Ana Flavia Furian
- Departamento de Ciência e Tecnologia de Alimentos, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | | | - Juliano Ferreira
- Programa de Pós - Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Adair Roberto Soares Dos Santos
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianólpolis, SC, Brazil
| | - Michele Rechia Fighera
- Laboratório de Bioquímica do Exercício, Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós - Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Departamento de Neuropsiquiatria, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Luiz Fernando Freire Royes
- Laboratório de Bioquímica do Exercício, Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós - Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| |
Collapse
|
40
|
Takechi R, Pallebage-Gamarallage MM, Lam V, Giles C, Mamo JC. Nutraceutical agents with anti-inflammatory properties prevent dietary saturated-fat induced disturbances in blood-brain barrier function in wild-type mice. J Neuroinflammation 2013; 10:73. [PMID: 23782872 PMCID: PMC3693897 DOI: 10.1186/1742-2094-10-73] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 06/08/2013] [Indexed: 12/11/2022] Open
Abstract
Background Emerging evidence suggests that disturbances in the blood–brain barrier (BBB) may be pivotal to the pathogenesis and pathology of vascular-based neurodegenerative disorders. Studies suggest that heightened systemic and central inflammations are associated with BBB dysfunction. This study investigated the effect of the anti-inflammatory nutraceuticals garlic extract-aged (GEA), alpha lipoic acid (ALA), niacin, and nicotinamide (NA) in a murine dietary-induced model of BBB dysfunction. Methods C57BL/6 mice were fed a diet enriched in saturated fatty acids (SFA, 40% fat of total energy) for nine months to induce systemic inflammation and BBB disturbances. Nutraceutical treatment groups included the provision of either GEA, ALA, niacin or NA in the positive control SFA-group and in low-fat fed controls. Brain parenchymal extravasation of plasma derived immunoglobulin G (IgG) and large macromolecules (apolipoprotein (apo) B lipoproteins) measured by quantitative immunofluorescent microscopy, were used as markers of disturbed BBB integrity. Parenchymal glial fibrillar acidic protein (GFAP) and cyclooxygenase-2 (COX-2) were considered in the context of surrogate markers of neurovascular inflammation and oxidative stress. Total anti-oxidant status and glutathione reductase activity were determined in plasma. Results Brain parenchymal abundance of IgG and apoB lipoproteins was markedly exaggerated in mice maintained on the SFA diet concomitant with significantly increased GFAP and COX-2, and reduced systemic anti-oxidative status. The nutraceutical GEA, ALA, niacin, and NA completely prevented the SFA-induced disturbances of BBB and normalized the measures of neurovascular inflammation and oxidative stress. Conclusions The anti-inflammatory nutraceutical agents GEA, ALA, niacin, or NA are potent inhibitors of dietary fat-induced disturbances of BBB induced by systemic inflammations.
Collapse
Affiliation(s)
- Ryusuke Takechi
- School of Public Health, Curtin Health Innovation Research Institute, Biosciences Research Precinct, Faculty of Health Sciences, Curtin University, Kent st, Bentley, WA, 6102, Australia
| | | | | | | | | |
Collapse
|
41
|
Mérida S, Sancho-Tello M, Muriach M, Miranda M, Navea A, Bosch-Morell F. Lipoic acid lessens Th1-mediated inflammation in lipopolysaccharide-induced uveitis reducing selectively Th1 lymphocytes-related cytokines release. Free Radic Res 2013; 47:593-601. [PMID: 23678888 DOI: 10.3109/10715762.2013.805882] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Inflammation results in the production of free radicals. We evaluated the anti-inflammatory and antioxidant capacity of lipoic acid in an experimental uveitis model upon a subcutaneous injection of endotoxin into Lewis rats. The role of oxidative stress in the endotoxin-induced uveitis model is well-known. Besides, the Th1 response classically performs a central part in the immunopathological process of experimental autoimmune uveitis. Exogenous sources of lipoic acid have been shown to exhibit antioxidant and anti-inflammatory properties. Our results show that lipoic acid treatment plays a preventive role in endotoxin-induced oxidative stress at 24 h post-administration and reduced Th1 lymphocytes-related cytokines by approximately 50-60%. Simultaneously, lipoic acid treatment caused a significant reduction in uveal histopathological grading and in the protein concentration in aqueous humors, but not in cellular infiltration.
Collapse
Affiliation(s)
- S Mérida
- Instituto de Ciencias Biomédicas, Universidad CEU Cardenal Herrera, Valencia, Spain
| | | | | | | | | | | |
Collapse
|
42
|
Demir H, Onur OE, Denizbasi A, Akoglu H, Eroglu SE, Ozpolat C, Akoglu E. The effects of adrenomedullin in traumatic brain injury. Peptides 2013; 43:27-31. [PMID: 23474144 DOI: 10.1016/j.peptides.2013.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 02/22/2013] [Accepted: 02/22/2013] [Indexed: 11/24/2022]
Abstract
Traumatic brain injury (TBI) is a common cause of death and disability throughout the world. A multifunctional peptide adrenomedullin (AM) has protective effects in the central nervous system. We evaluated AM in an animal model as a therapeutic agent that reduces brain damage after traumatic brain injury. A total of 36 rats was divided into 3 groups as sham, head trauma plus intraperitoneal (ip) saline, and head trauma plus adrenomedullin ip. The diffuse brain injury model of Marmarou et al. was used. Blood samples were taken from all groups at the 1st, 6th and 24th hours for analysis of TNF-α (tumor necrosis factor-α), IL-1β (interleukin-1β) and IL-6 (interleukin-6) levels. At the end of the study (at the 24th hour) a neurological examination was performed and half of the rats were decapitated to obtain blood and tissue samples, the other half were perfused transcardiacally for studying the histopathology of the brain tissue. There were no statistically significant changes in plasma levels of IL-1β, IL-6 and TNF-α relative to the sham group. Also, changes in tissue levels of malonedialdehyde, myeloperoxidase and glutathione were not statistically significant. However, neurological scores and histopathological examinations revealed healing. AM individually exerts neuroprotective effects in animal models of acute brain injury. But the mechanisms of action remain to be assessed.
Collapse
Affiliation(s)
- Hasan Demir
- Istanbul Fatih Sultan Mehmet Research and Training Hospital, Department of Emergency Medicine, Turkey
| | | | | | | | | | | | | |
Collapse
|
43
|
Rocamonde B, Paradells S, Barcia J, Barcia C, García Verdugo J, Miranda M, Romero Gómez F, Soria J. Neuroprotection of lipoic acid treatment promotes angiogenesis and reduces the glial scar formation after brain injury. Neuroscience 2012; 224:102-15. [DOI: 10.1016/j.neuroscience.2012.08.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 08/08/2012] [Accepted: 08/14/2012] [Indexed: 12/30/2022]
|
44
|
Liu B, Ma X, Guo D, Guo Y, Chen N, Bi H. Neuroprotective effect of alpha-lipoic acid on hydrostatic pressure-induced damage of retinal ganglion cells in vitro. Neurosci Lett 2012; 526:24-8. [PMID: 22917607 DOI: 10.1016/j.neulet.2012.08.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 06/28/2012] [Accepted: 08/07/2012] [Indexed: 10/28/2022]
Abstract
BACKGROUND Recently, alpha-lipoic acid (ALA) has been reported to afford protection against neurodegenerative disorders in humans and experimental animals, yet little study elucidates whether it works in glaucomatous optic neuropathy. OBJECTIVE This study aims to investigate whether ALA possesses neuroprotection against hydrostatic pressure-induced damage and explore its possible protective mechanism in cultured retinal ganglion cells (RGCs) in vitro. METHODS RGC-5 cells were differentiated using staurosporine and pre-treated with different concentrations of ALA, then subjected to 50mm Hg hydrostatic pressure for 6h. After elevated hydrostatic pressure, cell viability was measured using MTT assay and apoptosis was evaluated using flow cytometry with Annexin V/PI staining. Intracellular reactive oxygen species (ROS) changes were determined by flow cytometry based on 2',7'-dichlorofluorescein diacetate (DCFH-DA). The expression of manganese superoxide dismutase (MnSOD) was measured via quantitative real-time PCR and Western blotting analysis. RESULTS Increases of apoptotic rate and ROS production were observed in pressure-treated RGC-5 cells compared to normal control cells. In contrast, pretreatment of ALA significantly reduced the production of ROS, increased the expression of MnSOD and prevented apoptosis in pressure-treated RGC-5 cells. CONCLUSIONS These findings suggest that there are protective effects of ALA against elevated hydrostatic pressure-induced damage in RGC-5 cells, indicating ALA might be a potential therapeutic agent for glaucomatous optic neuropathy.
Collapse
Affiliation(s)
- Bing Liu
- Shandong University of Traditional Chinese Medicine, 16369 Jinan Jingshi Road, Jinan 250014, PR China
| | | | | | | | | | | |
Collapse
|
45
|
Zhang QG, Laird MD, Han D, Nguyen K, Scott E, Dong Y, Dhandapani KM, Brann DW. Critical role of NADPH oxidase in neuronal oxidative damage and microglia activation following traumatic brain injury. PLoS One 2012; 7:e34504. [PMID: 22485176 PMCID: PMC3317633 DOI: 10.1371/journal.pone.0034504] [Citation(s) in RCA: 149] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 03/05/2012] [Indexed: 01/20/2023] Open
Abstract
Background Oxidative stress is known to play an important role in the pathology of traumatic brain injury. Mitochondria are thought to be the major source of the damaging reactive oxygen species (ROS) following TBI. However, recent work has revealed that the membrane, via the enzyme NADPH oxidase can also generate the superoxide radical (O2−), and thereby potentially contribute to the oxidative stress following TBI. The current study thus addressed the potential role of NADPH oxidase in TBI. Methodology/Principal Findings The results revealed that NADPH oxidase activity in the cerebral cortex and hippocampal CA1 region increases rapidly following controlled cortical impact in male mice, with an early peak at 1 h, followed by a secondary peak from 24–96 h after TBI. In situ localization using oxidized hydroethidine and the neuronal marker, NeuN, revealed that the O2− induction occurred in neurons at 1 h after TBI. Pre- or post-treatment with the NADPH oxidase inhibitor, apocynin markedly inhibited microglial activation and oxidative stress damage. Apocynin also attenuated TBI-induction of the Alzheimer's disease proteins β-amyloid and amyloid precursor protein. Finally, both pre- and post-treatment of apocynin was also shown to induce significant neuroprotection against TBI. In addition, a NOX2-specific inhibitor, gp91ds-tat was also shown to exert neuroprotection against TBI. Conclusions/Significance As a whole, the study demonstrates that NADPH oxidase activity and superoxide production exhibit a biphasic elevation in the hippocampus and cortex following TBI, which contributes significantly to the pathology of TBI via mediation of oxidative stress damage, microglial activation, and AD protein induction in the brain following TBI.
Collapse
Affiliation(s)
- Quan-Guang Zhang
- Department of Neurology, Institute of Molecular Medicine and Genetics, Georgia Health Sciences University, Augusta, Georgia, United States of America
| | - Melissa D. Laird
- Department of Neurosurgery, Georgia Health Sciences University, Augusta, Georgia, United States of America
| | - Dong Han
- Department of Neurology, Institute of Molecular Medicine and Genetics, Georgia Health Sciences University, Augusta, Georgia, United States of America
| | - Khoi Nguyen
- Department of Neurology, Institute of Molecular Medicine and Genetics, Georgia Health Sciences University, Augusta, Georgia, United States of America
| | - Erin Scott
- Department of Neurology, Institute of Molecular Medicine and Genetics, Georgia Health Sciences University, Augusta, Georgia, United States of America
| | - Yan Dong
- Department of Neurology, Institute of Molecular Medicine and Genetics, Georgia Health Sciences University, Augusta, Georgia, United States of America
| | - Krishnan M. Dhandapani
- Department of Neurosurgery, Georgia Health Sciences University, Augusta, Georgia, United States of America
| | - Darrell W. Brann
- Department of Neurology, Institute of Molecular Medicine and Genetics, Georgia Health Sciences University, Augusta, Georgia, United States of America
- * E-mail:
| |
Collapse
|
46
|
Neal MT, Wilson JL, Hsu W, Powers AK. Concussions: What a neurosurgeon should know about current scientific evidence and management strategies. Surg Neurol Int 2012; 3:16. [PMID: 22439107 PMCID: PMC3307233 DOI: 10.4103/2152-7806.92930] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Accepted: 12/22/2011] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND There has been a tremendous amount of interest focused on the topic of concussions over the past few decades. Neurosurgeons are frequently consulted to manage patients with mild traumatic brain injuries (mTBI) that have radiographic evidence of cerebral injury. These injuries share significant overlap with concussions, injuries that typically do not reveal radiographic evidence of structural injury, in the realms of epidemiology, pathophysiology, outcomes, and management. Further, neurosurgeons often manage patients with extracranial injuries that have concomitant concussions. In these cases, neurosurgeons are often the only "concussion experts" that patients encounter. RESULTS The literature has been reviewed and data have been synthesized on the topic including sections on historical background, epidemiology, pathophysiology, diagnostic advances, clinical sequelae, and treatment suggestions, with neurosurgeons as the intended target audience. CONCLUSIONS Neurosurgeons should have a fundamental knowledge of the scientific evidence that has developed regarding concussions and be prepared to guide patients with treatment plans.
Collapse
Affiliation(s)
- Matthew T. Neal
- Department of Neurosurgery, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Jonathan L. Wilson
- Department of Neurosurgery, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Wesley Hsu
- Department of Neurosurgery, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Alexander K. Powers
- Department of Neurosurgery, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| |
Collapse
|
47
|
Gokdemir MT, Sogut O, Kaya H, Sayhan MB, Cevik M, Dokuzoglu MA, Boleken ME. Role of Oxidative Stress in the Clinical Outcome of Patients with Multiple Blunt Trauma. J Int Med Res 2012; 40:167-73. [DOI: 10.1177/147323001204000117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE: This prospective study evaluated serum total oxidant status (TOS), total antioxidant status (TAS) and oxidative stress index (OSI), along with the Revised Trauma Score (RTS) and Injury Severity Score (ISS), as predictors of clinical outcome in the early post-traumatic period in patients with multiple blunt trauma (MBT). METHODS: The study included 52 patients admitted to the emergency department with MBT and 40 age-and sex-matched healthy control subjects. RESULTS: The overall MBT patient mortality was 32.7% (17/52). There was no significant association between age and mortality in MBT patients, but there was a negative correlation between mortality and RTS, and a positive correlation between mortality and ISS. TOS levels were significantly higher in nonsurvivors compared with survivors. There was no correlation between TAS or OSI and survival. ISS and RTS showed positive and negative correlations with TOS level, respectively, but neither was significantly related to TAS or OSI. CONCLUSIONS: These findings suggest that TOS, as an early oxidative stress biomarker, may be an objective alternative criterion to the ISS and RTS for managing patients with MBT during the early period following traumatic injury.
Collapse
Affiliation(s)
- MT Gokdemir
- Department of Emergency Medicine, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - O Sogut
- Department of Emergency Medicine, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - H Kaya
- Department of Emergency Medicine, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - MB Sayhan
- Department of Emergency Medicine, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - M Cevik
- Department of Paediatric Surgery, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - MA Dokuzoglu
- Department of Emergency Medicine, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - ME Boleken
- Department of Paediatric Surgery, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| |
Collapse
|
48
|
Ghanizadeh A. Gold nanoparticles and lipoic acid as a novel anti-inflammatory treatment for autism, a hypothesis. JOURNAL OF MEDICAL HYPOTHESES AND IDEAS 2012. [DOI: 10.1016/j.jmhi.2012.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
49
|
Tsai MC, Chen WJ, Tsai MS, Ching CH, Chuang JI. Melatonin attenuates brain contusion-induced oxidative insult, inactivation of signal transducers and activators of transcription 1, and upregulation of suppressor of cytokine signaling-3 in rats. J Pineal Res 2011; 51:233-45. [PMID: 21545521 DOI: 10.1111/j.1600-079x.2011.00885.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The induction of oxidative stress and inflammation has been closely linked in traumatic brain injury (TBI). Transcriptional factors of signal transducers and activators of transcription (STAT) proteins are redox sensitive and participate in the regulation of cytokine signaling. Previous studies demonstrated that melatonin protects neurons through its antioxidative and anti-inflammatory effects in various neuropathological conditions. However, the effect of melatonin on STAT activity after TBI has not yet been explored. In this study, we used a controlled weight-drop TBI model and found that brain contusion induced oxidative stress (a decreased level of total glutathione and an increased ratio of oxidized glutathione to total glutathione), a reduction in STAT1 DNA-binding activity, and consequently neuronal loss in a contusion depth-dependent manner. A significant increased mRNA expression of suppressor of cytokine signaling (SOCS3), inducible nitric oxide synthetase (iNOS), and interleukine-6 (IL-6), but a decreased protein expression of protein inhibitor of activated STAT (PIAS1), was found 24 hr after brain contusion. SOCS3 and PIAS1 are endogenous negative regulators of STAT1. Moreover, the combination of intraperitoneal and local (presoaked in gelfoam and placed on the traumatic cortex) administration of melatonin had the most pronounced influence in inhibiting all effects except the PIAS1 downregulation induced by brain contusion. The results suggest that SOCS-3 upregulation and oxidative stress may contribute to the STAT1 inactivation after TBI. Melatonin protects neurons from TBI by reducing oxidative stress, STAT1 inactivation, and upregulation of SOCS-3 and pro-inflammatory cytokines.
Collapse
Affiliation(s)
- Ming Che Tsai
- Department of Emergency Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
| | | | | | | | | |
Collapse
|
50
|
Erşahin M, Toklu HZ, Akakin D, Yuksel M, Yeğen BC, Sener G. The effects of Nigella sativa against oxidative injury in a rat model of subarachnoid hemorrhage. Acta Neurochir (Wien) 2011; 153:333-41. [PMID: 21072672 DOI: 10.1007/s00701-010-0853-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Accepted: 10/23/2010] [Indexed: 01/10/2023]
Abstract
OBJECTIVE The aim of the study was to investigate the putative neuroprotective effect of Nigella sativa oil (NSO) treatment against subarachnoid hemorrhage (SAH) in rats. METHODS To induce SAH, rats were injected with 0.3 ml blood into their cisterna magna. Male Wistar albino rats were divided as control, vehicle-treated SAH, and NSO-treated (0.2 ml/kg, intraperitoneally) SAH groups. Forty-eight hours after SAH induction, neurological examination scores were recorded and the rats were decapitated. Brain tissue samples were taken for blood brain barrier permeability, brain water content, or determination of malondialdehyde (MDA) and glutathione (GSH) levels, myeloperoxidase (MPO), and Na(+)-K(+)-ATPase activities. RESULTS AND DISCUSSION On the second day of SAH induction, neurological examination scores were increased in SAH groups, while SAH caused significant decreases in brain GSH content and Na(+)-K(+)-ATPase activity, which were accompanied with significant increases in MDA levels and MPO activity. The histological observation showed vasospasm of the basillary artery. On the other hand, NSO treatment markedly improved the neurological scores while all oxidant responses were prevented, implicating that NSO treatment may be of therapeutic use in preventing oxidative stress due to SAH.
Collapse
Affiliation(s)
- Mehmet Erşahin
- Department of Neurosurgery, Haydarpasa Numune Education and Research Hospital, Istanbul, Turkey
| | | | | | | | | | | |
Collapse
|