Electrophysiological functional recovery in a rat model of spinal cord hemisection injury following bone marrow-derived mesenchymal stem cell transplantation under hypothermia.

作者: Dong Wang , Jianjun Zhang

DOI: 10.3969/J.ISSN.1673-5374.2012.10.005

关键词:

摘要: Following successful establishment of a rat model spinal cord hemisection injury by resecting right tissues, bone marrow stem cells were transplanted into the lesions via caudal vein while maintaining rectal temperature at 34 ± 0.5°C for 6 hours (mild hypothermia). Hematoxylin-eosin staining showed that astrocytes gathered around site and formed scars 4 weeks post-transplantation. Compared with rats under normal temperature, hypothermia increased numbers proliferating (bromodeoxyuridine-positive cells), better recovery somatosensory-evoked motor-evoked potentials, greater Basso, Beattie, Bresnahan locomotor rating scores, an degree angle in incline plate test. These findings suggested combined mesenchymal transplantation effectively promoted electrical conduction nerve functional repair injury.

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