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Lapchak PA, Boitano PD, Bombien R, Chou D, Knight M, Muehle A, Winkel MT, Khoynezhad A. CNB-001 reduces paraplegia in rabbits following spinal cord ischemia. Neural Regen Res 2019; 14:2192-2198. [PMID: 31397359 PMCID: PMC6788235 DOI: 10.4103/1673-5374.262598] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Spinal cord ischemia associated with trauma and surgical procedures including thoraco-abdominal aortic aneurysm repair and thoracic endovascular aortic repair results in devastating clinical deficits in patients. Because spinal cord ischemia is inadequately treated, we studied the effects of [4-((1E)-2-(5-(4-hydroxy-3-methoxystyryl-)-1-phenyl-1H-pyrazoyl-3-yl) vinyl)-2-methoxy-phenol)] (CNB-001), a novel curcumin-based compound, in a rabbit SCI model. CNB-001 is known to inhibit human 5-lipoxygenase and 15-lipoxygenase and reduce the ischemia-induced inflammatory response. Moreover, CNB-001 can reduce the level of oxidative stress markers and potentiate brain-derived neurotrophic factor and brain-derived neurotrophic factor receptor signaling. The Tarlov scale and quantal analysis technique results revealed that CNB-001 administered as an intravenous dose (bolus) 30 minutes prior to spinal cord ischemia improved the behaviors of female New Zealand White rabbits. The improvements were similar to those produced by the uncompetitive N-methyl-D-aspartate receptor antagonist memantine. At 48 hours after aortic occlusion, there was a 42.7% increase (P < 0.05) in tolerated ischemia duration (n = 14) for rabbits treated with CNB-001 (n = 16), and a 72.3% increase for rabbits treated with the positive control memantine (P < 0.05) (n = 23) compared to vehicle-treated ischemic rabbits (n = 22). CNB-001 is a potential important novel treatment for spinal cord ischemia induced by aortic occlusion. All experiments were approved by the CSMC Institutional Animal Care and Use Committee (IACUC #4311) on November 1, 2012.
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Affiliation(s)
| | - Paul D Boitano
- Department of Surgery, Memorial Care Health System, Long Beach, CA, USA
| | - Rene Bombien
- Department of Surgery, Memorial Care Health System, Long Beach, CA, USA
| | - Daisy Chou
- Department of Surgery, Memorial Care Health System, Long Beach, CA, USA
| | - Margot Knight
- Department of Surgery, Memorial Care Health System, Long Beach, CA, USA
| | - Anja Muehle
- Department of Surgery, Memorial Care Health System, Long Beach, CA, USA
| | - Mihaela Te Winkel
- Department of Surgery, Memorial Care Health System, Long Beach, CA, USA
| | - Ali Khoynezhad
- Department of Surgery, Memorial Care Health System, Long Beach, CA, USA
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Joyeux L, Deprez M, Khatoun A, Van Kuyck K, Pelsmaekers K, Engels AC, Wang H, Monteiro Carvalho Mori da Cunha MG, De Vleeschauwer S, Mc Laughlin M, Deprest J. Quantitative analysis of motor evoked potentials in the neonatal lamb. Sci Rep 2017; 7:16095. [PMID: 29170524 PMCID: PMC5701025 DOI: 10.1038/s41598-017-16453-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 11/13/2017] [Indexed: 12/05/2022] Open
Abstract
Evoking motor potentials are an objective assessment method for neuromotor function, yet this was to our knowledge never done in neonatal lambs. There is neither a method for standardized quantification of motor evoked potentials (MEPs). We first aimed to evaluate the feasibility of MEP recording in neonatal lambs and test its validity. Second we aimed to develop an algorithm for its quantification and test its reliability since manual input is required. We recorded myogenic MEPs after transcranial motor cortex stimulation in 6 lambs aged 1–2 days. MEPs were also measured in one lamb undergoing Neuro-Muscular Blockade (NMB) and another undergoing lumbar spinal cord (SC) transection, both serving as controls. We computed 5 parameters using a custom-made algorithm: motor threshold, latency, area-under-the-curve, peak-to-peak amplitude and duration. Intra- and inter-observer reliability was analyzed. MEPs could be easily recorded, disappearing after NMB and SC transection. The algorithm allowed for analysis, hence physiologic readings of the parameters in all 4 limbs of all lambs were obtained. Our method was shown to have high intra- and inter-observer ( ≥70%) reliability for latency, area-under-the-curve and peak-to-peak amplitude. These results suggest that standardized MEP recording and analysis in neonatal lambs is feasible, and can reliably assess neuromotor function.
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Affiliation(s)
- Luc Joyeux
- Academic Department Development and Regeneration, Cluster Organ Systems, Biomedical Sciences, Faculty of Medicine, Katholieke Universiteit (KU) Leuven, Leuven, Belgium. .,Center for Surgical Technologies, Faculty of Medicine, KU Leuven, Leuven, Belgium.
| | - Marjolijn Deprez
- Research group Experimental Neurosurgery and Neuroanatomy, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Ahmad Khatoun
- Experimental Otorhinolaryngology, Department of Neurosciences, KU Leuven, Belgium
| | - Kris Van Kuyck
- Research group Experimental Neurosurgery and Neuroanatomy, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Kelly Pelsmaekers
- Research group Experimental Neurosurgery and Neuroanatomy, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | - Alexander C Engels
- Academic Department Development and Regeneration, Cluster Organ Systems, Biomedical Sciences, Faculty of Medicine, Katholieke Universiteit (KU) Leuven, Leuven, Belgium.,Center for Surgical Technologies, Faculty of Medicine, KU Leuven, Leuven, Belgium.,Department of Obstetrics and Gynecology, Division Woman and Child, Fetal Medicine Unit, University Hospital Gasthuisberg UZ Leuven, Leuven, Belgium
| | - Hongmei Wang
- Academic Department Development and Regeneration, Cluster Organ Systems, Biomedical Sciences, Faculty of Medicine, Katholieke Universiteit (KU) Leuven, Leuven, Belgium.,Department of Obstetrics and Gynecology, Shandong Provincial University Hospital, Jinan, China
| | | | | | - Myles Mc Laughlin
- Experimental Otorhinolaryngology, Department of Neurosciences, KU Leuven, Belgium
| | - Jan Deprest
- Academic Department Development and Regeneration, Cluster Organ Systems, Biomedical Sciences, Faculty of Medicine, Katholieke Universiteit (KU) Leuven, Leuven, Belgium.,Center for Surgical Technologies, Faculty of Medicine, KU Leuven, Leuven, Belgium.,Department of Obstetrics and Gynecology, Division Woman and Child, Fetal Medicine Unit, University Hospital Gasthuisberg UZ Leuven, Leuven, Belgium.,Institute of Women's Health, University College London Hospitals, London, United Kingdom
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Jiang M, Sun L, Feng DX, Yu ZQ, Gao R, Sun YZ, Chen G. Neuroprotection provided by isoflurane pre-conditioning and post-conditioning. Med Gas Res 2017; 7:48-55. [PMID: 28480032 PMCID: PMC5402347 DOI: 10.4103/2045-9912.202910] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Isoflurane, a volatile and inhalational anesthetic, has been extensively used in perioperative period for several decades. A large amount of experimental studies have indicated that isoflurane exhibits neuroprotective properties when it is administrated before or after (pre-conditioning and post-conditioning) neurodegenerative diseases (e.g., hypoxic ischemia, stroke and trauma). Multiple mechanisms are involved in isoflurane induced neuroprotection, including activation of glycine and γ-aminobutyric acid receptors, antagonism of ionic channels and alteration of the function and activity of other cellular proteins. Although neuroprotection provided by isoflurane is observed in many animal studies, convincing evidence is lacking in human trials. Therefore, there is still a long way to go before translating its neuroprotective properties into clinical practice.
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Affiliation(s)
- Ming Jiang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Liang Sun
- Department of Neurosurgery & Brain and Nerve Research Laboratory, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | | | - Zheng-Quan Yu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Rong Gao
- Department of Neurosurgery, Zhangjiagang First People's Hospital, Soochow University, Zhangjiagang, Jiangsu Province, China
| | - Yuan-Zhao Sun
- Department of Neurosurgery, Huaian Hospital Affiliated of Xuzhou Medical University and Huaian Second People's Hospital, Huaian, Jiangsu Province, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China.,Department of Neurosurgery, Zhangjiagang First People's Hospital, Soochow University, Zhangjiagang, Jiangsu Province, China.,Department of Neurosurgery, Huaian Hospital Affiliated of Xuzhou Medical University and Huaian Second People's Hospital, Huaian, Jiangsu Province, China
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Wang H, Li P, Xu N, Zhu L, Cai M, Yu W, Gao Y. Paradigms and mechanisms of inhalational anesthetics mediated neuroprotection against cerebral ischemic stroke. Med Gas Res 2016; 6:194-205. [PMID: 28217291 PMCID: PMC5223310 DOI: 10.4103/2045-9912.196901] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cerebral ischemic stroke is a leading cause of serious long-term disability and cognitive dysfunction. The high mortality and disability of cerebral ischemic stroke is urging the health providers, including anesthesiologists and other perioperative professioners, to seek effective protective strategies, which are extremely limited, especially for those perioperative patients. Intriguingly, several commonly used inhalational anesthetics are recently suggested to possess neuroprotective effects against cerebral ischemia. This review introduces multiple paradigms of inhalational anesthetic treatments that have been investigated in the setting of cerebral ischemia, such as preconditioning, proconditioning and postconditioning with a variety of inhalational anesthetics. The pleiotropic mechanisms underlying these inhalational anesthetics-afforded neuroprotection against stroke are also discussed in detail, including the common pathways shared by most of the inhalational anesthetic paradigms, such as anti-excitotoxicity, anti-apoptosis and anti-inflammation. There are also distinct mechanisms involved in specific paradigms, such as preserving blood brain barrier integrity, regulating cerebral blood flow and catecholamine release. The ready availability of these inhalational anesthetics bedside and renders them a potentially translatable stroke therapy attracting great efforts for understanding of the underlying mechanisms.
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Affiliation(s)
- Hailian Wang
- Anesthesiology Department of Huashan Hospital, State Key Laboratory of Medical Neurobiology and Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China; Pittsburgh Institute of Brain Disorders and Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Peiying Li
- Pittsburgh Institute of Brain Disorders and Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Anesthesiology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Na Xu
- Anesthesiology Department of Huashan Hospital, State Key Laboratory of Medical Neurobiology and Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China
| | - Ling Zhu
- Pittsburgh Institute of Brain Disorders and Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Anesthesiology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Mengfei Cai
- Anesthesiology Department of Huashan Hospital, State Key Laboratory of Medical Neurobiology and Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China
| | - Weifeng Yu
- Department of Anesthesiology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yanqin Gao
- Anesthesiology Department of Huashan Hospital, State Key Laboratory of Medical Neurobiology and Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China; Pittsburgh Institute of Brain Disorders and Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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