Background The Ras/Raf/ERK1/2 signaling pathway controls many cellular responses such as cell proliferation, migration, differentiation, and death. In the nervous system, emerging evidence also points to a death-promo...Background The Ras/Raf/ERK1/2 signaling pathway controls many cellular responses such as cell proliferation, migration, differentiation, and death. In the nervous system, emerging evidence also points to a death-promoting role for ERK1/2 in both in vitro and in vivo models of neuronal death. To further investigate how Ras/Raf/ERK1/2 up-regulation may lead to the development of spinal cord injury, we developed a cellular model of Raf/ERK up-regulation by over- expressing c-Raf in cultured spinal cord neurons （SCNs） and dorsal root ganglions （DRGs）.展开更多
The incidence of multiple noncontiguous spinal injuries （MNSI） in the cervical spine is rare but has catastrophic consequences. The patient in this report was a 34-year-old woman with five-level cervical MNSI. CT an...The incidence of multiple noncontiguous spinal injuries （MNSI） in the cervical spine is rare but has catastrophic consequences. The patient in this report was a 34-year-old woman with five-level cervical MNSI. CT and MRI showed that injuries included atlantoaxial instability, burst fracture of C6, dislocation of C6/7, rupture of the intervertebal disc or ligamentous complex, and irreversible cord damage. The mechanism for this case was a combined pattern of hyperflexion, compression, and hyperextension injuries. A review of the literature revealed that this case is the first report in the literature of a vehicle related accident causing five-level noncontiguous injuries of the cervical spine.展开更多
文摘Background The Ras/Raf/ERK1/2 signaling pathway controls many cellular responses such as cell proliferation, migration, differentiation, and death. In the nervous system, emerging evidence also points to a death-promoting role for ERK1/2 in both in vitro and in vivo models of neuronal death. To further investigate how Ras/Raf/ERK1/2 up-regulation may lead to the development of spinal cord injury, we developed a cellular model of Raf/ERK up-regulation by over- expressing c-Raf in cultured spinal cord neurons （SCNs） and dorsal root ganglions （DRGs）.
文摘The incidence of multiple noncontiguous spinal injuries （MNSI） in the cervical spine is rare but has catastrophic consequences. The patient in this report was a 34-year-old woman with five-level cervical MNSI. CT and MRI showed that injuries included atlantoaxial instability, burst fracture of C6, dislocation of C6/7, rupture of the intervertebal disc or ligamentous complex, and irreversible cord damage. The mechanism for this case was a combined pattern of hyperflexion, compression, and hyperextension injuries. A review of the literature revealed that this case is the first report in the literature of a vehicle related accident causing five-level noncontiguous injuries of the cervical spine.
