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Schizophrenia, lung cancer and glutathione-S-transferase-μ

Published online by Cambridge University Press:  13 June 2014

Kieran C Murphy
Affiliation:
Departments of Psychological Medicine and Medical Genetics, University of Wales College of Medicine, Heath Park, Cardiff, CF4 4XN, Wales
T Mantle
Affiliation:
Department of Biochemistry, Trinity College, Dublin 2, Ireland
RK Shelley
Affiliation:
St John of God Hospital, Stillorgan, Co Dublin, Ireland

Abstract

Objectives: Several reports have suggested that, despite the high prevalence of cigarette smoking, the incidence of lung cancer is lower than would be expected in patients with schizophrenia. In addition, patients with lung cancer have been shown to have a lower expression of glutathione-Stransferase-μ (GST-μ) compared to healthy controls. In this study, we tested the hypothesis that GST-μ was a trait marker that protected patients with schizophrenia from developing lung cancer.

Methods: One hundred patients who fulfilled DSMIIIR criteria for schizophrenia were examined for the presence or absence of GST-μ.

Results: Significantly more male (86%) and female patients (64%) were smokers compared to general population rates of 30% and 30% respectively (p < 0.0001). There were no significant differences in the expression of GST-μ in patients (48%) compared to controls (46%).

Conclusions: We found no difference in the expression of GST-μ in patients with schizophrenia compared to normal controls. It is therefore unlikely that GST-μ acts as a trait marker protecting patients with schizophrenia from lung cancer. However, a significantly large smoking prevalence rate was ascertained in the patient population.

Type
Original Papers
Copyright
Copyright © Cambridge University Press 1996

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