共 43 条
Antioxidant Carbon Particles Improve Cerebrovascular Dysfunction Following Traumatic Brain Injury
被引:100
作者:
Bitner, Brittany R.
[1
,2
]
Marcano, Daniela C.
[3
,4
]
Berlin, Jacob M.
[3
,4
]
Fabian, Roderic H.
[5
,6
]
Cherian, Leela
[5
]
Culver, James C.
[2
]
Dickinson, Mary E.
[1
,2
]
Robertson, Claudia S.
[5
]
Pautler, Robia G.
[1
,2
]
Kent, Thomas A.
[1
,6
,7
]
Tour, James M.
[3
,4
]
机构:
[1] Baylor Coll Med, Interdept Program Translat Biol & Mol Med, Houston, TX 77030 USA
[2] Baylor Coll Med, Dept Mol Physiol & Biophys, Houston, TX 77030 USA
[3] Rice Univ, Dept Chem, Houston, TX 77005 USA
[4] Rice Univ, Smalley Inst Nanoscale Sci & Technol, Houston, TX 77005 USA
[5] Baylor Coll Med, Dept Neurosurg, Houston, TX 77030 USA
[6] Baylor Coll Med, Dept Neurol, Houston, TX 77030 USA
[7] Michael E DeBakey VA Med Ctr, Houston, TX 77030 USA
来源:
基金:
美国国家科学基金会;
关键词:
traumatic brain injury;
cerebral blood flow;
antioxidants;
hydrophilic carbon clusters;
nanoparticles;
IN-VIVO;
SUPEROXIDE-DISMUTASE;
OXIDE NANOPARTICLES;
OXIDATIVE STRESS;
GRAPHENE OXIDE;
NITRIC-OXIDE;
RAT MODEL;
CELLS;
DRUG;
CARBOXYFULLERENES;
D O I:
10.1021/nn302615f
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Injury to the neurovasculature is a feature of brain injury and must be addressed to maximize opportunity for improvement. Cerebrovascular dysfunction, manifested by reduction in cerebral blood flow (CBF), is a key factor that worsens outcome after traumatic brain injury (TBI), most notably under conditions of hypotension. We report here that a new class of antioxidants, poly(ethylene glycol)-functionalized hydrophilic carbon dusters (PEG-HCCs), which are nontoxic carbon particles, rapidly restore CBF in a mild TBI/hypotension/resuscitation rat model when administered during resuscitation-a clinically relevant time point. Along with restoration of CBE, there is a concomitant normalization of superoxide and nitric oxide levels. Given the role of poor CBF in determining outcome, this finding is of major importance for improving patient health under clinically relevant conditions during resuscitative care, and it has direct implications for the current TBI/hypotension war-fighter victims in the Afghanistan and Middle East theaters. The results also have relevancy in other related acute circumstances such as stroke and organ transplantation.
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页码:8007 / 8014
页数:8
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