Related Experiment Video
Updated: Jun 18, 2026

08:00
Dissection and Isolation of Murine Glia from Multiple Central Nervous System Regions
Published on: June 4, 2020
Neuroglia in neurodegeneration
Michael T Heneka1, José J Rodríguez, Alexei Verkhratsky
1Klinische Neurowissenschaften, Klinik und Poliklinik für Neurologie, 53127 Bonn, Germany. michael.heneka@ukb.uni-bonn.de
Brain Research Reviews
|December 1, 2009
Summary
Neuroglial cells are crucial for brain health and defense. Neuropathology, including neurodegenerative diseases, involves glial cells, suggesting they drive disease progression.
Area of Science:
- Neuroscience
- Cell Biology
- Pathology
Background:
- Neuroglial cells maintain brain homeostasis and act as the brain's intrinsic defense system.
- All neuropathological conditions involve glial cells.
- Neurodegenerative diseases disrupt neural circuit connectivity and glial cell interactions.
Purpose of the Study:
- To highlight the central role of glial cells in neuropathology.
- To reframe neurodegenerative diseases as primarily gliodegenerative processes.
Main Methods:
- Review and synthesis of current knowledge on neuroglial cell function in neuropathology.
- Analysis of glial reactions such as astrogliosis and microglial activation in neurodegeneration.
Main Results:
- Neurodegenerative diseases disrupt neuronal and glial connections.
- Astrogliosis and microglial activation are conserved glial responses in neurodegeneration.
- Glial cells are increasingly recognized as key players in disease progression.
Conclusions:
- Neurodegenerative diseases can be viewed as gliodegenerative processes.
- Glial cells significantly influence the progression and outcome of neuropathological conditions.
Related Concept Videos
Glial Cells
Overview
Nervous Tissue: Glial Cells
Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial cells that interact...
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial cells that interact...
Neurogenesis and Regeneration of Nervous Tissue
In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
Alzheimer Disease ll: Pathophysiology
Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...
Neural Regulation
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
Parkinson Disease ll: Pathophysiology
Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...
