Department of Cell Biology;
School of Basic Medical Sciences;
Southern Medical University;
Guangzhou;
Guangdong Province;
China;
Department of Spine Surgery;
The Third Affiliated Hospital of Sun Yat-sen University;
Guangzhou;
Guangdong Province;
China;
Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery;
Guangzhou;
Guangdong Province;
China;
Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery;
Guangzhou;
Guangdong Province;
China;
Department of Radiology;
The Third Affiliated Hospital of Sun Yat-sen University;
Guangzhou;
Guangdong Province;
China;
effective dose; human umbilical cord mesenchymal stem cells; intrathecal implantation; ion channels; neurotransmitter receptors; spinal cord injury; subacute spinal cord injury; γ-aminobutyric acid type A(GABA_(A))receptors;