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Event: 2266
Key Event Title
Demyelination, increased
Short name
Biological Context
Level of Biological Organization |
---|
Cellular |
Cell term
Organ term
Organ term |
---|
nervous system |
Key Event Components
Process | Object | Action |
---|---|---|
demyelination | increased | |
CNS demyelination | increased |
Key Event Overview
AOPs Including This Key Event
AOP Name | Role of event in AOP | Point of Contact | Author Status | OECD Status |
---|---|---|---|---|
Inhibition of NTE leading to delayed neuropathy via LPS cell membrane integration | KeyEvent | Brooke Bowe (send email) | Under development: Not open for comment. Do not cite | |
Inhibition of NTE leading to delayed neuropathy via increased inflammation | KeyEvent | Brooke Bowe (send email) | Under development: Not open for comment. Do not cite |
Taxonomic Applicability
Term | Scientific Term | Evidence | Link |
---|---|---|---|
Homo sapiens | Homo sapiens | NCBI |
Life Stages
Sex Applicability
Term | Evidence |
---|---|
Unspecific |
Key Event Description
Demyelination is defined by the loss of myelin sheaths in nervous tissue, typically following insult from injury or disease. Demyelination is initiated by fractioning of myelin lamellae followed by removal of the fragments by proteolytic and lipolytic enzymes that can digest the myelin pieces (Cuzner & Norton, 1996; Höftberger & Lassmann, 2017). Considering myelin functions to maintain axon functionality and survival, once myelin is lost neurodegeneration ensues (Ohno & Ikenaka, 2019). Demyelinating lesions can occur anywhere within the CNS including on myelin surrounding axons of both sensory and motor neurons (Höftberger & Lassmann, 2017).
How It Is Measured or Detected
Domain of Applicability
References
Cuzner, M. L., & Norton, W. T. (1996). Biochemistry of Demyelination. Brain Pathology, 6(3), 231-242.
Höftberger, R., & Lassmann, H. (2017). Inflammatory demyelinating diseases of the central nervous system. Handbook of Clinical Neurology, 145, 263–283.
Ohno, N., & Ikenaka, K. (2019). Axonal and neuronal degeneration in myelin diseases. Neuroscience Research, 139, 48-57.