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Chronic neurological toxicity associated with exposure to volatile substances.

Abstract
1. The main neurological disorders associated with chronic VSA are peripheral neuropathy, cerebellar disease, chronic encephalopathy and dementia. Apart from peripheral neuropathy, the clinical features are non-specific, evidence for solvent-related toxicity is in most cases circumstantial and there is no clear dose/response relationship. 2. Peripheral neuropathy is mainly associated with n-hexane and methyl n-butyl ketone. 3. Cerebellar disease is usually associated with toluene exposure; in the more severe cases there is often radiological evidence of irreversible cerebellar atrophy. 4. Chronic encephalopathy and dementia are the most serious consequence of solvent exposure, particularly to toluene in abusers and to mixed solvents in industrial workers. Postmortem studies in some abusers have shown generalized axonal degeneration, demyelination and brain atrophy. 5. Further studies on low level solvent exposure are needed as little is known about the neurological consequences of mild VSA, especially as regards individual susceptibility and possible interactions between solvents and other toxins such as ethanol.
AuthorsY Lolin
JournalHuman toxicology (Hum Toxicol) Vol. 8 Issue 4 Pg. 293-300 (Jul 1989) ISSN: 0144-5952 [Print] England
PMID2550357 (Publication Type: Journal Article, Review)
Chemical References
  • Hexanes
  • Solvents
  • n-hexane
  • Toluene
  • Methyl n-Butyl Ketone
Topics
  • Brain Diseases (chemically induced)
  • Cerebellar Diseases (chemically induced)
  • Cranial Nerve Diseases (chemically induced)
  • Dose-Response Relationship, Drug
  • Environmental Exposure
  • Hexanes (toxicity)
  • Methyl n-Butyl Ketone (toxicity)
  • Nervous System (drug effects)
  • Peripheral Nervous System Diseases (chemically induced)
  • Solvents (toxicity)
  • Substance-Related Disorders
  • Toluene (toxicity)

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