Mutant debrisoquine hydroxylation genes in Parkinson's disease

Lancet. 1992 Apr 25;339(8800):1017-8. doi: 10.1016/0140-6736(92)90537-d.


The frequency of fifteen genotypes of CYP2D6 (debrisoquine 4-hydroxylase) in 53 patients with Parkinson's disease was determined by the polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) analyses and compared with the findings in 72 healthy controls. The commonest mutant allele, CYP2D6B, was twice as frequent among patients as in controls, with an approximate relative risk ratio of 2.70 (95% confidence interval 1.14-6.41; p = 0.0063) for subjects homozygous or heterozygous for this allele.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Alleles
  • Cytochrome P-450 CYP2D6
  • Cytochrome P-450 Enzyme System / genetics*
  • Female
  • Humans
  • Male
  • Mixed Function Oxygenases / genetics*
  • Mutation / genetics
  • Parkinson Disease / genetics*
  • Polymerase Chain Reaction
  • Polymorphism, Restriction Fragment Length


  • Cytochrome P-450 Enzyme System
  • Mixed Function Oxygenases
  • Cytochrome P-450 CYP2D6