Neuroinflammation and Neurodegeneration
Neuroinflammation and neurodegeneration are closely linked processes involved in many neurological disorders, including Alzheimer's disease, Parkinson's disease, multiple sclerosis, and amyotrophic lateral sclerosis (ALS). Neuroinflammation refers to the activation of the brain’s immune cells—primarily microglia and astrocytes—in response to injury, infection, or disease. While this response is protective in the short term, chronic inflammation can become harmful, contributing to neuronal damage and death. This persistent immune activity releases cytokines and reactive oxygen species, which can exacerbate neurodegeneration. In diseases like Alzheimer's, neuroinflammation accelerates the accumulation of toxic proteins such as amyloid-beta and tau, worsening cognitive decline. Research shows that targeting inflammatory pathways may help slow or prevent neurodegeneration. Understanding the delicate balance between protective and destructive inflammation is key to developing new therapeutic strategies. Advances in neuroimaging and molecular biology are enhancing our ability to study these processes, offering hope for more effective treatments in the future.