Abstract
Astrocytes are a multifunctional subset of glial cells that are important in maintaining
the health and function of the central nervous system (CNS). Reactive astrocytes
may release inflammatory mediators, chemokines, and cytokines, as well as neurotrophic
factors. There may be neuroprotective (e.g., cytokines, like IL-6 and TGF-b) and neurotoxic
effects (e.g., IL-1β and TNF-a) associated with these molecules. In response to
CNS pathologies, astrocytes go to a state called astrogliosis which produces diverse and
heterogenic functions specific to the pathology. Astrogliosis has been linked to the progression
of many neurodegenerative disorders. Phytochemicals are a large group of compounds
derived from natural herbs with health benefits. This review will summarize how
several phytochemicals affect neurodegenerative diseases (e.g., Alzheimer’s disease,
Huntington’s disease, amyotrophic lateral sclerosis, and Parkinson’s disease) in basic
medical and clinical studies and how they might affect astrogliosis in the process.
Keywords:
Astrocytes, neurodegenerative diseases, phytochemicals, herbal medicine, central nervous system, health.
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