Exp Neurobiol.  2010 Sep;19(2):63-70. 10.5607/en.2010.19.2.63.

Neurotoxic Effects of Tetrahydroisoquinolines and Underlying Mechanisms

Affiliations
  • 1College of Pharmacy, Seoul National University, Seoul 151-742, Korea. surh@plaza.snu.ac.kr
  • 2College of Pharmacy, Chung-Ang University, Seoul 156-756, Korea.

Abstract

Tetrahydropapaveroline (THP), a neurotoxic tetrahydroisoquinoline alkaloid formed by condensation between dopamine and dopaldehyde, has been speculated to cause Parkinson's disease and also to contribute to alcohol dependence. Having two catechol moieties, THP may readily undergo oxidation to form an o-quinone intermediate with concomitant production of reactive oxygen species, which can cause neuronal cell death and DNA damage. This review will deal with the current knowledge of neurotoxic effects of this endogenous alkaloid and underlying biochemical mechanisms.

Keyword

tetrahydroisoquinoline; neurotoxicity; cell death; reactive oxygen species; Parkinson; alcoholism

MeSH Terms

Alcoholism
Catechols
Cell Death
DNA Damage
Dopamine
Neurons
Parkinson Disease
Reactive Oxygen Species
Tetrahydroisoquinolines
Tetrahydropapaveroline
Catechols
Dopamine
Reactive Oxygen Species
Tetrahydroisoquinolines
Tetrahydropapaveroline
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