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Lee JH, Lee D, Lee BK, Cho YS, Kim DK, JUNG YH, Ryu SJ, No E. The association between lactate to albumin ratio and outcomes at early phase in patients with traumatic brain injury. ULUS TRAVMA ACIL CER 2023; 29:752-757. [PMID: 37409915 PMCID: PMC10405036 DOI: 10.14744/tjtes.2023.40033] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 01/17/2023] [Indexed: 07/07/2023]
Abstract
BACKGROUND The majority of traumatic brain injury (TBI) cases result in death in the early phase; predicting short-term progno-sis of affected patients is necessary to prevent this. This study aimed to examine the association between the lactate-to-albumin ratio (LAR) on admission and outcomes in the early phase of TBI. METHODS This retrospective observational study included patients with TBI who visited our emergency department between January 2018 and December 2020. TBI was considered as an head abbreviated injury scale (AIS) score of 3 or higher and other AIS of 2 or lower. The primary and secondary outcomes were 24-h mortality and massive transfusion (MT), respectively. RESULTS In total, 460 patients were included. The 24-h mortality was 12.6% (n=28) and MT was performed in 31 (6.7%) patients. In the multivariable analysis, LAR was associated with 24-h mortality (odds ratio [OR], 2.021; 95% confidence interval [CI], 1.301-3.139) and MT (OR, 1.898; 95% CI, 1.288-2.797). The areas under the curve of LAR for 24-h mortality and MT were 0.805 (95% CI, 0.766-0.841) and 0.735 (95% CI, 0.693-0.775), respectively. CONCLUSION LAR was associated with early-phase outcomes in patients with TBI, including 24-h mortality and MT. LAR may help predict these outcomes within 24 h in patients with TBI.
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Affiliation(s)
- Ji Ho Lee
- Department of Emergency Medicine Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - DongHun Lee
- Department of Emergency Medicine Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Byung Kook Lee
- Department of Emergency Medicine Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Yong Soo Cho
- Department of Emergency Medicine Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Ki Kim
- Department of Emergency Medicine Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Yong Hun JUNG
- Department of Emergency Medicine Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Seok Jin Ryu
- Department of Emergency Medicine Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Eul No
- Department of Emergency Medicine Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
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2
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Liu W, Liu YY, Zhang MQ, Qin MZ, Yang YY, Liu BW, Zhang DJ, Jiang CH, Yin ZQ, Lu M, Shen JP, Zhang J. A comparative study of the ameliorative effects of hyaluronic acid oligosaccharides and hyaluronic acid on DSS-induced colitis in mice and research on relevant mechanisms. Food Funct 2023. [PMID: 37366083 DOI: 10.1039/d2fo03644d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
As a dietary supplement, hyaluronic acid (HA) has exhibited appreciable immunomodulatory activity and an ameliorative effect on rodent colitis. However, its high viscosity is not only refractory to absorb through the gut, but also causes flatulence. In contrast to HA, hyaluronic acid oligosaccharides (o-HAs) can overcome the above-mentioned constraints, but their treatment effect still remains ill-defined contemporarily. Herein, the current study intends to compare the modulatory effects of HA and o-HA on colitis and assess the underlying molecular mechanism. We first showed that o-HA had a better preventive effect than HA in alleviating colitis symptoms, as evidenced by lower body weight loss, lower disease activity index scores, a lower inflammatory response (TNF-α, IL-6, IL-1β, p-NF-κB), and more intact colon epithelial integrity in vivo. The best efficiency was observed in the o-HA treated group with a dosage of 30 mg kg-1. In an in vitro barrier function assay, o-HA exerted a better protective effect on the transepithelial electrical resistance (TEER), FITC permeability, and wound healing and modulated the expression of tight junction (TJ) proteins (ZO-1, occludin) in lipopolysaccharide (LPS)-stimulated Caco-2 cells. In summary, both HA and o-HA showed the potential to reduce inflammation and ameliorate intestinal damage in DSS-induced colitis and LPS-induced inflammation, but o-HA had improved outcomes. The results also provided a glimpse of the latent mechanism by which HA and o-HA enhanced intestinal barrier function via MLCK/p-MLC signaling pathway suppression.
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Affiliation(s)
- Wei Liu
- Department of Cardiology, Lishui District Hospital of Traditional Chinese Medicine, Nanjing 211200, China
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
| | - Yuan-Yuan Liu
- Department of Cardiology, Lishui District Hospital of Traditional Chinese Medicine, Nanjing 211200, China
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
| | - Meng-Qiu Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
| | - Miao-Zhen Qin
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
| | - Yuan-Yuan Yang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
| | - Bi-Wen Liu
- Department of Cardiology, Lishui District Hospital of Traditional Chinese Medicine, Nanjing 211200, China
| | - Dong-Jian Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
| | - Cui-Hua Jiang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
| | - Zhi-Qi Yin
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, Jiangsu Province, P.R. China
| | - Min Lu
- Department of Cardiology, Lishui District Hospital of Traditional Chinese Medicine, Nanjing 211200, China
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
| | - Jian-Ping Shen
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
| | - Jian Zhang
- Department of Cardiology, Lishui District Hospital of Traditional Chinese Medicine, Nanjing 211200, China
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, P.R. China.
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Hu Y, Tao W. Microenvironmental Variations After Blood-Brain Barrier Breakdown in Traumatic Brain Injury. Front Mol Neurosci 2021; 14:750810. [PMID: 34899180 PMCID: PMC8662751 DOI: 10.3389/fnmol.2021.750810] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 10/18/2021] [Indexed: 12/12/2022] Open
Abstract
Traumatic brain injury (TBI) is linked to several pathologies. The blood-brain barrier (BBB) breakdown is considered to be one of the initial changes. Further, the microenvironmental alteration following TBI-induced BBB breakdown can be multi-scaled, constant, and dramatic. The microenvironmental variations after disruption of BBB includes several pathological changes, such as cerebral blood flow (CBF) alteration, brain edema, cerebral metabolism imbalances, and accumulation of inflammatory molecules. The modulation of the microenvironment presents attractive targets for TBI recovery, such as reducing toxic substances, inhibiting inflammation, and promoting neurogenesis. Herein, we briefly review the pathological alterations of the microenvironmental changes following BBB breakdown and outline potential interventions for TBI recovery based on microenvironmental modulation.
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Affiliation(s)
- Yue Hu
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Weiwei Tao
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
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4
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Zhang R, Wang J, Huang L, Wang TJ, Huang Y, Li Z, He J, Sun C, Wang J, Chen X, Wang J. The pros and cons of motor, memory, and emotion-related behavioral tests in the mouse traumatic brain injury model. Neurol Res 2021; 44:65-89. [PMID: 34308784 DOI: 10.1080/01616412.2021.1956290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Traumatic brain injury (TBI) is a medical emergency with high morbidity and mortality. Motor, memory, and emotion-related deficits are common symptoms following TBI, yet treatment is very limited. To develop new drugs and find new therapeutic avenues, a wide variety of TBI models have been established to mimic the heterogeneity of TBI. In this regard, along with histologic measures, behavioral functional outcomes provide valuable insight into the underlying neuropathology and guide neurorehabilitation efforts for neuropsychiatric impairment after TBI. Development, characterization, and application of behavioral tests that can assess functional neurologic deficits are essential to the development of translational therapies. This comprehensive review aims to summarize 19 common behavioral tests from three aspects (motor, memory, and emotion-related) that are associated with TBI pathology. Discussion covers the apparatus, the test steps, the evaluation indexes, data collection and analysis, animal performance and applications, advantages and disadvantages as well as precautions to eliminate bias wherever possible. We discussed recent studies on TBI-related preconditioning, biomarkers, and optimized behavioral protocols. The neuropsychologic tests employed in clinics were correlated with those used in mouse TBI models. In summary, this review provides a comprehensive, up-to-date reference for TBI researchers to choose the right neurobehavioral protocol according to the research objectives of their translational investigation.
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Affiliation(s)
- Ruoyu Zhang
- Department of Human Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Junming Wang
- Department of Human Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Leo Huang
- Department of Psychology, University of Toronto, Toronto, Canada
| | - Tom J Wang
- Winston Churchill High School, Potomac, Maryland, USA
| | - Yinrou Huang
- Department of Human Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Zefu Li
- Department of Human Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jinxin He
- Department of Human Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Chen Sun
- Department of Human Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jing Wang
- Department of Human Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xuemei Chen
- Department of Human Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jian Wang
- Department of Human Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
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5
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Halstead MR, Geocadin RG. The Medical Management of Cerebral Edema: Past, Present, and Future Therapies. Neurotherapeutics 2019; 16:1133-1148. [PMID: 31512062 PMCID: PMC6985348 DOI: 10.1007/s13311-019-00779-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Cerebral edema is commonly associated with cerebral pathology, and the clinical manifestation is largely related to the underlying lesioned tissue. Brain edema usually amplifies the dysfunction of the lesioned tissue and the burden of cerebral edema correlates with increased morbidity and mortality across diseases. Our modern-day approach to the medical management of cerebral edema has largely revolved around, an increasingly artificial distinction between cytotoxic and vasogenic cerebral edema. These nontargeted interventions such as hyperosmolar agents and sedation have been the mainstay in clinical practice and offer noneloquent solutions to a dire problem. Our current understanding of the underlying molecular mechanisms driving cerebral edema is becoming much more advanced, with differences being identified across diseases and populations. As our understanding of the underlying molecular mechanisms in neuronal injury continues to expand, so too is the list of targeted therapies in the pipeline. Here we present a brief review of the molecular mechanisms driving cerebral edema and a current overview of our understanding of the molecular targets being investigated.
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Affiliation(s)
- Michael R Halstead
- Neurosciences Critical Care Division, Departments of Neurology, Anesthesiology-Critical Care Medicine and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21287, USA.
| | - Romergryko G Geocadin
- Neurosciences Critical Care Division, Departments of Neurology, Anesthesiology-Critical Care Medicine and Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21287, USA
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6
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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.
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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
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7
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Braun DJ, Bachstetter AD, Sudduth TL, Wilcock DM, Watterson DM, Van Eldik LJ. Genetic knockout of myosin light chain kinase (MLCK210) prevents cerebral microhemorrhages and attenuates neuroinflammation in a mouse model of vascular cognitive impairment and dementia. GeroScience 2019; 41:671-679. [PMID: 31104189 PMCID: PMC6885026 DOI: 10.1007/s11357-019-00072-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/25/2019] [Indexed: 12/15/2022] Open
Abstract
The blood-brain barrier (BBB) is critical in maintenance of brain homeostasis, and loss of its functional integrity is a key feature across a broad range of neurological insults. This includes both acute injuries such as traumatic brain injury and stroke, as well as more chronic pathologies associated with aging, such as vascular cognitive impairment and dementia (VCID). A specific form of myosin light chain kinase (MLCK210) is a major regulator of barrier integrity in general, including the BBB. Studies have demonstrated the potential of MLCK210 as a therapeutic target for peripheral disorders involving tissue barrier dysfunction, but less is known about its potential as a target for chronic neurologic disorders. We report here that genetic knockout (KO) of MLCK210 protects against cerebral microhemorrhages and neuroinflammation induced by chronic dietary hyperhomocysteinemia. Overall, the results are consistent with an accumulating body of evidence supporting MLCK210 as a potential therapeutic target for tissue barrier dysfunction and specifically implicate it in BBB dysfunction and neuroinflammation in a model of VCID.
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Affiliation(s)
- David J Braun
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA
| | - Adam D Bachstetter
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA
- Department of Neuroscience, University of Kentucky, Lexington, KY, 40536, USA
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY, 40536, USA
| | - Tiffany L Sudduth
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA
- Department of Physiology, University of Kentucky, Lexington, KY, 40536, USA
| | - Donna M Wilcock
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA
- Department of Physiology, University of Kentucky, Lexington, KY, 40536, USA
| | - D Martin Watterson
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Linda J Van Eldik
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA.
- Department of Neuroscience, University of Kentucky, Lexington, KY, 40536, USA.
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY, 40536, USA.
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8
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Luh C, Feiler S, Frauenknecht K, Meyer S, Lubomirov LT, Neulen A, Thal SC. The Contractile Apparatus Is Essential for the Integrity of the Blood-Brain Barrier After Experimental Subarachnoid Hemorrhage. Transl Stroke Res 2018; 10:534-545. [PMID: 30467816 PMCID: PMC6733822 DOI: 10.1007/s12975-018-0677-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 10/19/2018] [Accepted: 11/11/2018] [Indexed: 11/27/2022]
Abstract
Development of vasogenic brain edema is a key event contributing to mortality after subarachnoid hemorrhage (SAH). The precise underlying mechanisms at the neurovascular level that lead to disruption of the blood-brain barrier (BBB) are still unknown. Activation of myosin light chain kinases (MLCK) may result in change of endothelial cell shape and opening of the intercellular gap with subsequent vascular leakage. Male C57Bl6 mice were subjected to endovascular perforation. Brain water content was determined by wet-dry ratio and BBB integrity by Evans-Blue extravasation. The specific MLCK inhibitor ML-7 was administered to the mice to determine the role of the contractile apparatus of the neurovascular unit in determining brain water content, BBB integrity, neurofunctional outcome, brain damage, and survival at 7 days after SAH. Inhibition of MLCK significantly reduced BBB permeability (Evans Blue extravasation − 28%) and significantly decreased edema formation in comparison with controls (− 2%). MLCK-treated mice showed reduced intracranial pressure (− 53%), improved neurological outcome at 24 h and 48 h after SAH, and reduced 7-day mortality. Tight junction proteins claudin-5 and zonula occludens-1 levels were not influenced by ML-7 at 24 h after insult. The effect of ML-7 on pMLC was confirmed in brain endothelial cell culture (bEnd.3 cells) subjected to 4-h oxygen-glucose deprivation. The present study indicates that MLCK contributes to blood-brain barrier dysfunction after SAH by a mechanism that does not involve modulation of tight junction protein levels, but via activation of the contractile apparatus of the endothelial cell skeleton. This underlying mechanism may be a promising target for the treatment of SAH.
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Affiliation(s)
- Clara Luh
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Sergej Feiler
- Department of Neurosurgery, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Katrin Frauenknecht
- Institute of Neuropathology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Simon Meyer
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | | | - Axel Neulen
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Serge C Thal
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany. .,Center for Molecular Surgical Research (MFO), Medical Center of the Johannes Gutenberg-University, Langenbeckstrasse 1, 55131, Mainz, Germany.
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9
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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]
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10
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Pathophysiology and treatment of cerebral edema in traumatic brain injury. Neuropharmacology 2018; 145:230-246. [PMID: 30086289 DOI: 10.1016/j.neuropharm.2018.08.004] [Citation(s) in RCA: 224] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/24/2018] [Accepted: 08/03/2018] [Indexed: 12/30/2022]
Abstract
Cerebral edema (CE) and resultant intracranial hypertension are associated with unfavorable prognosis in traumatic brain injury (TBI). CE is a leading cause of in-hospital mortality, occurring in >60% of patients with mass lesions, and ∼15% of those with normal initial computed tomography scans. After treatment of mass lesions in severe TBI, an important focus of acute neurocritical care is evaluating and managing the secondary injury process of CE and resultant intracranial hypertension. This review focuses on a contemporary understanding of various pathophysiologic pathways contributing to CE, with a subsequent description of potential targeted therapies. There is a discussion of identified cellular/cytotoxic contributors to CE, as well as mechanisms that influence blood-brain-barrier (BBB) disruption/vasogenic edema, with the caveat that this distinction may be somewhat artificial since molecular processes contributing to these pathways are interrelated. While an exhaustive discussion of all pathways with putative contributions to CE is beyond the scope of this review, the roles of some key contributors are highlighted, and references are provided for further details. Potential future molecular targets for treating CE are presented based on pathophysiologic mechanisms. We thus aim to provide a translational synopsis of present and future strategies targeting CE after TBI in the context of a paradigm shift towards precision medicine. This article is part of the Special Issue entitled "Novel Treatments for Traumatic Brain Injury".
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Picroside II protects the blood-brain barrier by inhibiting the oxidative signaling pathway in cerebral ischemia-reperfusion injury. PLoS One 2017; 12:e0174414. [PMID: 28388666 PMCID: PMC5384762 DOI: 10.1371/journal.pone.0174414] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 03/08/2017] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND AND PURPOSE Thrombolysis is used to improve cerebral circulation; at the same time, neuroprotective drugs such as antioxidants should also be used. The aim of these experiments was to explore the protective mechanism of an antioxidant, picroside II, on the blood-brain barrier (BBB) after cerebral ischemia-reperfusion (CI/R) injury. METHODS To observe the antagonistic effect of picroside II on CI/R damage, the neurological deficit score and the infarct volume were measured. To detect the protective effect of picroside II on nerve cells and the BBB, the morphology and structure of cortical brain tissue were observed, respectively. To investigate the antioxidant effect and mechanism of picroside II, reactive oxygen species (ROS) content, the activity of Nicotinamide adenine dinucleotide phosphate oxidase (NADPH oxidase), and the protein levels of Nox2 and Rac-1 were detected. To investigate the protective mechanism of picroside II on the BBB, the levels of ROCK, MLCK, MMP-2 and claudin-5 were tested. RESULTS A higher neurological score, bigger cortex infarction, more damaged neuron structure and injured BBB, increased content of ROS and activity of NADPH oxidase, higher protein levels of Nox2, Rac-1, ROCK, MLCK and MMP-2 and lower levels of claudin-5 were observed in the model group. In the picroside group, the neurological score, neuronal damage, BBB injury, ROS content and NADPH oxidase activity were reduced (P<0.05), and the protein levels of Rac-1, Nox2, ROCK, MLCK and MMP-2 were down-regulated (P<0.05), while the expression of claudin-5 was up-regulated (P<0.05). CONCLUSIONS Picroside II could protect the nervous system possibly through reducing the content of ROS by down-regulating the expression of Rac-1 and Nox2 and could protect the BBB through reducing the expression of ROCK, MLCK, and MMP-2, while enhancing the expression of claudin-5.
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Winkler EA, Minter D, Yue JK, Manley GT. Cerebral Edema in Traumatic Brain Injury. Neurosurg Clin N Am 2016; 27:473-88. [DOI: 10.1016/j.nec.2016.05.008] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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13
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Wu F, Guo X, Xu J, Wang W, Li B, Huang Q, Su L, Xu Q. Role of myosin light chain and myosin light chain kinase in advanced glycation end product-induced endothelial hyperpermeability in vitro and in vivo. Diab Vasc Dis Res 2016; 13:137-44. [PMID: 26607798 DOI: 10.1177/1479164115610469] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
We have previously reported that advanced glycation end products activated Rho-associated protein kinase and p38 mitogen-activated protein kinase, causing endothelial hyperpermeability. However, the mechanisms involved were not fully clarified. Here, we explored the role of myosin light chain kinase in advanced glycation end product-induced endothelial hyperpermeability. Myosin light chain phosphorylation significantly increased by advanced glycation end products in endothelial cells in a time- and dose-dependent manner, indicating that myosin light chain phosphorylation is involved in the advanced glycation end product pathway. Advanced glycation end products also induced myosin phosphatase-targeting subunit 1 phosphorylation, and small interfering RNA knockdown of the receptor for advanced glycation end products, or blocking myosin light chain kinase with its inhibitor, ML-7, or small interfering RNA abated advanced glycation end product-induced myosin light chain phosphorylation. Advanced glycation end product-induced F-actin rearrangement and endothelial hyperpermeability were also diminished by inhibition of receptor for advanced glycation end product or myosin light chain kinase signalling. Moreover, inhibiting myosin light chain kinase with ML-7 or blocking receptor for advanced glycation end product with its neutralizing antibody attenuated advanced glycation end product-induced microvascular hyperpermeability. Our findings suggest a novel role for myosin light chain and myosin light chain kinase in advanced glycation end product-induced endothelial hyperpermeability.
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Affiliation(s)
- Fan Wu
- Key Laboratory of Shock and Microcirculation Research of Guangdong Province, Department of Pathophysiology, Southern Medical University, Guangzhou, China Department of Nephrology, The Third Hospital of Zhengzhou, Zhengzhou, China
| | - Xiaohua Guo
- Key Laboratory of Shock and Microcirculation Research of Guangdong Province, Department of Pathophysiology, Southern Medical University, Guangzhou, China
| | - Jing Xu
- Key Laboratory of Shock and Microcirculation Research of Guangdong Province, Department of Pathophysiology, Southern Medical University, Guangzhou, China
| | - Weiju Wang
- Key Laboratory of Shock and Microcirculation Research of Guangdong Province, Department of Pathophysiology, Southern Medical University, Guangzhou, China
| | - Bingling Li
- Postdoctoral Workstation, Huabo Bio-Pharmaceutical Research Institute, Guangzhou, China
| | - Qiaobing Huang
- Key Laboratory of Shock and Microcirculation Research of Guangdong Province, Department of Pathophysiology, Southern Medical University, Guangzhou, China
| | - Lei Su
- Key Laboratory of Tropical Zone Trauma Care and Tissue Repair of PLA, Department of ICU, General Hospital of Guangzhou Military Command, Guangzhou, China
| | - Qiulin Xu
- Postdoctoral Workstation, Huabo Bio-Pharmaceutical Research Institute, Guangzhou, China Key Laboratory of Tropical Zone Trauma Care and Tissue Repair of PLA, Department of ICU, General Hospital of Guangzhou Military Command, Guangzhou, China
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14
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Rossi JL, Todd T, Daniels Z, Bazan NG, Belayev L. Interferon-Stimulated Gene 15 Upregulation Precedes the Development of Blood-Brain Barrier Disruption and Cerebral Edema after Traumatic Brain Injury in Young Mice. J Neurotrauma 2015; 32:1101-8. [PMID: 25669448 PMCID: PMC4504440 DOI: 10.1089/neu.2014.3611] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Recent studies show that myosin light chain kinase (MLCK) plays a pivotal role in development of cerebral edema, a known complication following traumatic brain injury (TBI) in children and a contributing factor to worsened neurologic recovery. Interferon-stimulated gene 15 (ISG15) is upregulated after cerebral ischemia and is neuroprotective. The significant role of ISG15 after TBI has not been studied. Postnatal Day (PND) 21 and PND24 mice were subjected to lateral closed-skull injury with impact depth of 2.0 or 2.25 mm. Behavior was examined at 7 d using two-object novel recognition and Wire Hang tests. Mice were sacrificed at 6 h, 12 h, 24 h, 48 h, 72 h, and 7 d. ISG15 and MLCK were analyzed by Western blot and immunohistochemistry, blood-brain barrier (BBB) disruption with Evans Blue (EB), and cerebral edema with wet/dry weights. EB extravasation and edema peaked at 72 h in both ages. PND21 mice had more severe neurological deficits, compared with PND24 mice. PND24 mice showed peak ISG15 expression at 6 h, and PND21 mice at 72 h. MLCK peaked in both age groups at 12 h and co-localized with ISG15 on immunohistochemistry and co-immunoprecipitation. These studies provide evidence, ISG15 is elevated following TBI in mice, preceding MLCK elevation, development of BBB disruption, and cerebral edema.
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Affiliation(s)
- Janet L. Rossi
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Children's Hospital of New Orleans, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Tracey Todd
- Department of Neurosurgery, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Zachary Daniels
- Department of Neurosurgery, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Nicolas G. Bazan
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Ludmila Belayev
- Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Department of Neurosurgery, Louisiana State University Health Sciences Center, New Orleans, Louisiana
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15
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Moretti R, Pansiot J, Bettati D, Strazielle N, Ghersi-Egea JF, Damante G, Fleiss B, Titomanlio L, Gressens P. Blood-brain barrier dysfunction in disorders of the developing brain. Front Neurosci 2015; 9:40. [PMID: 25741233 PMCID: PMC4330788 DOI: 10.3389/fnins.2015.00040] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 01/27/2015] [Indexed: 12/22/2022] Open
Abstract
Disorders of the developing brain represent a major health problem. The neurological manifestations of brain lesions can range from severe clinical deficits to more subtle neurological signs or behavioral problems and learning disabilities, which often become evident many years after the initial damage. These long-term sequelae are due at least in part to central nervous system immaturity at the time of the insult. The blood-brain barrier (BBB) protects the brain and maintains homeostasis. BBB alterations are observed during both acute and chronic brain insults. After an insult, excitatory amino acid neurotransmitters are released, causing reactive oxygen species (ROS)-dependent changes in BBB permeability that allow immune cells to enter and stimulate an inflammatory response. The cytokines, chemokines and other molecules released as well as peripheral and local immune cells can activate an inflammatory cascade in the brain, leading to secondary neurodegeneration that can continue for months or even years and finally contribute to post-insult neuronal deficits. The role of the BBB in perinatal disorders is poorly understood. The inflammatory response, which can be either acute (e.g., perinatal stroke, traumatic brain injury) or chronic (e.g., perinatal infectious diseases) actively modulates the pathophysiological processes underlying brain injury. We present an overview of current knowledge about BBB dysfunction in the developing brain during acute and chronic insults, along with clinical and experimental data.
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Affiliation(s)
- Raffaella Moretti
- INSERM U1141, Robert Debre's Hospital Paris, France ; Université Paris Diderot, Sorbonne Paris Cité, UMRS 1141-PROTECT Paris, France ; PremUP Paris, France ; S. Maria della Misericordia Hospital, Università degli Studi di Udine Udine, Italy
| | - Julien Pansiot
- INSERM U1141, Robert Debre's Hospital Paris, France ; Université Paris Diderot, Sorbonne Paris Cité, UMRS 1141-PROTECT Paris, France ; PremUP Paris, France
| | - Donatella Bettati
- INSERM U1141, Robert Debre's Hospital Paris, France ; Université Paris Diderot, Sorbonne Paris Cité, UMRS 1141-PROTECT Paris, France ; PremUP Paris, France
| | - Nathalie Strazielle
- Lyon Neurosciences Research Center, INSERM U1028, CNRS UMR5292 - Lyon University Lyon, France ; Brain-i Lyon, France
| | | | - Giuseppe Damante
- S. Maria della Misericordia Hospital, Università degli Studi di Udine Udine, Italy
| | - Bobbi Fleiss
- INSERM U1141, Robert Debre's Hospital Paris, France ; Université Paris Diderot, Sorbonne Paris Cité, UMRS 1141-PROTECT Paris, France ; PremUP Paris, France ; Department of Division of Imaging Sciences and Biomedical Engineering, Centre for the Developing Brain, St. Thomas' Hospital London, UK
| | - Luigi Titomanlio
- INSERM U1141, Robert Debre's Hospital Paris, France ; Université Paris Diderot, Sorbonne Paris Cité, UMRS 1141-PROTECT Paris, France ; PremUP Paris, France ; Pediatric Emergency Department, APHP, Robert Debré Hospital Paris, France
| | - Pierre Gressens
- INSERM U1141, Robert Debre's Hospital Paris, France ; Université Paris Diderot, Sorbonne Paris Cité, UMRS 1141-PROTECT Paris, France ; PremUP Paris, France ; Department of Division of Imaging Sciences and Biomedical Engineering, Centre for the Developing Brain, St. Thomas' Hospital London, UK
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16
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TREK-King the Blood–Brain-Barrier. J Neuroimmune Pharmacol 2014; 9:293-301. [DOI: 10.1007/s11481-014-9530-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 02/09/2014] [Indexed: 10/25/2022]
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