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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201706032
|2 doi
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|a pubmed24n0936.xml
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|a (DE-627)NLM281003890
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|a (NLM)29441625
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Liu, Dongfei
|e verfasserin
|4 aut
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|a Biodegradable Spheres Protect Traumatically Injured Spinal Cord by Alleviating the Glutamate-Induced Excitotoxicity
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 28.01.2019
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|a Date Revised 18.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a New treatment strategies for spinal cord injury with good therapeutic efficacy are actively pursued. Here, acetalated dextran (AcDX), a biodegradable polymer obtained by modifying vicinal diols of dextran, is demonstrated to protect the traumatically injured spinal cord. To facilitate its administration, AcDX is formulated into microspheres (≈7.2 µm in diameter) by the droplet microfluidic technique. Intrathecally injected AcDX microspheres effectively reduce the traumatic lesion volume and inflammatory response in the injured spinal cord, protect the spinal cord neurons from apoptosis, and ultimately, recover the locomotor function of injured rats. The neuroprotective feature of AcDX microspheres is achieved by sequestering glutamate and calcium ions in cerebrospinal fluid. The scavenging of glutamate and calcium ion reduces the influx of calcium ions into neurons and inhibits the formation of reactive oxygen species. Consequently, AcDX microspheres attenuate the expression of proapoptotic proteins, Calpain, and Bax, and enhance the expression of antiapoptotic protein Bcl-2. Overall, AcDX microspheres protect traumatically injured spinal cord by alleviating the glutamate-induced excitotoxicity. This study opens an exciting perspective toward the application of neuroprotective AcDX for the treatment of severe neurological diseases
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|a Journal Article
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|a acetalated dextran
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|a alleviated excitotoxicity
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|a calcium ion scavenging
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4 |
|a glutamate adsorption
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| 650 |
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|a spinal cord injury
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|a Glutamic Acid
|2 NLM
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| 650 |
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|a 3KX376GY7L
|2 NLM
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| 700 |
1 |
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|a Chen, Jian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jiang, Tao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Yao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lu, Xiyi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Zehua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Weixia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Zheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ding, Qirui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Santos, Hélder A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yin, Guoyong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fan, Jin
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 14 vom: 30. Apr., Seite e1706032
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|g volume:30
|g year:2018
|g number:14
|g day:30
|g month:04
|g pages:e1706032
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|u http://dx.doi.org/10.1002/adma.201706032
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