Baicalin attenuates blood-spinal cord barrier disruption and apoptosis through PI3K/Akt signaling pathway after spinal cord injury黄芩苷通过PI3K/Akt信号通路减轻脊髓损伤后血脊髓屏障破坏和细胞凋亡NEURAL REGENERATION RESEARCHIF6.72022-01-0141OAAI