What is the fine-grained topic of the following text: LPA levels increase in the contused spinal cord parenchyma during the first 14 d. To model this potential contribution of LPA in the spinal cord, we injected LPA into the normal spinal cord, revealing that LPA induces microglia/macrophage activation and demyelination. Only return the topic.
LPA's role in inducing microglia/macrophage activation and demyelination in the spinal cord