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[Microglial activation and GFAP astroglial immunopositivity in drug abusers]
Soudni Lekarstvi
|June 26, 2012
Summary
Neurotoxicity from psychotropic substances activates brain glial cells. This study observed CD68 and GFAP positive glial cells in chronic abusers, suggesting they are a key indicator of neurotoxicity.
Area of Science:
- Neuroscience
- Toxicology
- Immunohistochemistry
Context:
- Psychotropic substance abuse leads to neurotoxicity.
- Neuroinflammation, involving astroglial and microglial cells, is a common response to toxins.
Purpose:
- To investigate the pathomorphological changes in glial cells in patients with chronic psychotropic substance abuse.
- To identify potential biomarkers for monitoring neurotoxicity.
Summary:
- Studied 42 patients addicted to psychotropic substances, measuring blood NSE, S100B, and manganese.
- Examined brain tissue from 14 deceased patients, using immunohistochemistry for CD68 (microglia) and GFAP (astrocytes).
- Found elevated NSE, S100B, and manganese in patients; deceased patients showed CD68+ microglia, neurophagy, and GFAP+ astrocytes.
Impact:
- CD68 and GFAP positive glial cells in brain tissue are potential pathomorphological correlates of neurotoxicity in chronic abusers.
- NSE and S100B can serve as blood markers to monitor neurotoxicity in individuals with substance abuse disorders.
