The TaClo concept: 1-trichloromethyl-1,2,3,4-tetrahydro-beta-carboline (TaClo), a new toxin for dopaminergic neurons | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

701340

Reference Type

Journal Article

Subtype

Review

Title

The TaClo concept: 1-trichloromethyl-1,2,3,4-tetrahydro-beta-carboline (TaClo), a new toxin for dopaminergic neurons

Author(s)

Bringmann, G; God, R; Feineis, D; Wesemann, W; Riederer, P; Rausch, W; Reichmann, H; Sontag, K

Year

1995

Is Peer Reviewed?

Yes

Journal

Journal of Neural Transmission. Supplement
ISSN: 0303-6995

Volume

Page Numbers

235-244

Language

English

PMID

8821060

Abstract

Due to its structural analogy to the neurotoxin MPTP, "TaClo" (1-trichloromethyl-1,2,3,4-tetrahydro-beta-carboline), a compound readily originating in vitro from tryptamine ("Ta") and chloral ("Clo"), is discussed as a potential natural inducer of parkinsonian-like symptoms. Its spontaneous formation in man has to be taken into account after application of the drug chloral hydrate or after exposure to the solvent trichloroethylene. This first representative of chloral-derived heterocycles could now indeed be demonstrated to be formed in vivo after application of its putative precursors to rats. In vivo analysis of the nigrostriatal dopamine metabolism, behavioural studies, and histochemical findings as well as a strong inhibition of the complex I of the mitochondrial respiratory chain revealed the neurotoxic potential of TaClo on the dopaminergic system.

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