Abstract:
:This study examines the effects of combination therapy of collagen scaffolds and human marrow stromal cells (hMSCs) on the expression of tissue plasminogen activator (tPA) after traumatic brain injury (TBI) in rats. Adult male Wistar rats (n=48) were injured with controlled cortical impact and treated either with scaffolds suffused with hMSCs (3×10(6)) or hMSCs (3×10(6)) alone transplanted into the lesion cavity 1 week after TBI. A control group was treated with saline. Neurological function was assessed using the Morris Water Maze test (MWM) and modified Neurological Severity Scores (mNSS). The rats were sacrificed 14 days after TBI and brain samples were processed for immunohistochemical analysis and quantitative Western blot and quantitative real-time polymerase chain reaction (qRT-PCR) studies. Enhanced functional improvement was observed on both the mNSS and MWM tests in the scaffold+hMSC-treated group compared to the other two groups. Immunostaining with anti-human mitochondrial antibody (E5204) showed more hMSCs in the injury zone of the scaffold+hMSC group compared to the hMSC-alone group. Triple staining showed that more neurons were tPA-positive in the scaffold+hMSC group compared to the other two groups (p<0.05). Western blot analysis and qRT-PCR showed that scaffold+hMSC and hMSC-alone treatment enhanced the expression of tPA compared to controls (p<0.05), but tPA expression was significantly greater in the scaffold+hMSC group. The induction of tPA by hMSCs after TBI may be one of the mechanisms involved in promoting functional improvement after TBI.
journal_name
J Neurotraumajournal_title
Journal of neurotraumaauthors
Mahmood A,Qu C,Ning R,Wu H,Goussev A,Xiong Y,Irtenkauf S,Li Y,Chopp Mdoi
10.1089/neu.2010.1694subject
Has Abstractpub_date
2011-07-01 00:00:00pages
1199-207issue
7eissn
0897-7151issn
1557-9042journal_volume
28pub_type
杂志文章abstract::Among the 3.5 million annual new head injury cases is a subpopulation of children and young adults who experience repeated traumatic brain injury (TBI). The duration of vulnerability after a single TBI remains unknown, and biomarkers have yet to be determined. Decreases in glucose metabolism (cerebral metabolic rate o...
journal_title:Journal of neurotrauma
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abstract::The severity of injury to cardiovascular autonomic pathways following clinical spinal cord injury (SCI) can be evaluated with spectral analyses. Whether this technique provides a translatable assessment of cardiovascular autonomic function in rodent SCI is unknown. Beat-to-beat blood pressure and pulse interval were m...
journal_title:Journal of neurotrauma
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,随机对照试验
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更新日期:2011-01-01 00:00:00
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journal_title:Journal of neurotrauma
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journal_title:Journal of neurotrauma
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journal_title:Journal of neurotrauma
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journal_title:Journal of neurotrauma
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doi:10.1089/neu.2016.4525
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journal_title:Journal of neurotrauma
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pub_type: 杂志文章
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更新日期:1994-06-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,评审
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2018-01-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,meta分析,评审
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更新日期:2016-03-01 00:00:00
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journal_title:Journal of neurotrauma
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1999.16.915
更新日期:1999-10-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2013.3219
更新日期:2014-07-01 00:00:00
abstract::Many patients with mild traumatic brain injury (MTBI) concurrently sustain extracranial injuries; however, little is known about the impact of these additional injuries on outcome. We assessed the impact of additional injuries on the severity of postconcussional symptoms (PCS) and functional outcome 6 months post-inju...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2006.23.1561
更新日期:2006-10-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:
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pub_type: 杂志文章,随机对照试验
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更新日期:2006-06-01 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 历史文章,杂志文章,评审
doi:10.1089/neu.2009.1206
更新日期:2010-07-01 00:00:00
abstract::A critical component for accelerating the clinical uptake of research data in the area of pediatric concussion or mild traumatic brain injury (MTBI) pertains to the establishment and utilization of common databases. The objective of the first phase of our CanPedCDE initiative was to agree upon pediatric common data el...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2018.5887
更新日期:2018-08-15 00:00:00
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1990.7.219
更新日期:1990-01-01 00:00:00
abstract::Ischemic insults to the brain in stroke or traumatic brain injury produce excessive release of glutamate from depolarized nerve terminals. This excessive glutamate release in turn stimulates massive calcium entry into nerve cells, activating a biochemical cascade that results in cell death. A major pathway of calcium ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章,评审
doi:
更新日期:1992-05-01 00:00:00
abstract::Cardiovascular disease is the leading cause of death for individuals with spinal cord injury (SCI). Because of a lack of a standardized and accessible animal model for cardiovascular disease after SCI, few laboratories have conducted pre-clinical trials aimed at reinstating descending cardiovascular control. Here, we ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
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更新日期:2017-02-01 00:00:00
abstract::The effectiveness of cerebrospinal fluid (CSF) drainage in lowering high intracranial pressure (ICP) is well established in severe traumatic brain injury (TBI). Recently, however, the use of external ventricular drains (EVDs) and ICP monitors in TBI has come under question. The aim of this retrospective study was to i...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
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更新日期:2017-11-15 00:00:00
abstract::Despite its importance to care, clinicians and researchers often discount patient-reported outcomes in favor of proxy reports, in persons with traumatic brain injury (TBI). The rationale relates to concerns about lack of awareness of patients regarding their functioning. However, although lack of awareness occurs in s...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
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更新日期:2013-11-15 00:00:00
abstract::Optic nerve crush injury leads to death of retinal ganglion cells (RGCs), both as a direct result of the primary injury and via secondary degeneration induced by neurotoxins secreted by dying RGCs. Studies have shown that, if optic nerve crush is preceded by an unrelated injury to another part of the central nervous s...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2006.23.1072
更新日期:2006-07-01 00:00:00