Journal article
Changes in caudate volume after exposure to atypical neuroleptics in patients with schizophrenia may be sex-dependent
Schizophrenia research, Vol.66(2), pp.137-142
2004
DOI: 10.1016/j.schres.2003.08.008
PMID: 15061245
Abstract
Background: Changes in the volume of the caudate nucleus over time in patients with schizophrenia has been shown to be directly related to neuroleptic exposure. Few studies have evaluated caudate volume in subjects with schizophrenia who were neuroleptic naı̈ve at intake and treated exclusively with atypical neuroleptics.
Methods: Fourteen patients were matched by gender to 14 healthy controls and were evaluated over time using MRI. The patients were neuroleptic naı̈ve at intake and at follow-up had been treated exclusively with atypical neuroleptics. Difference scores were calculated for caudate volumes. Neuroleptic exposure was quantified using a dose-years formula.
Results: There was no difference between patients and controls in the amount of change over time in the volume of the caudate. However, the female patients had a negative correlation (
r=−0.74) between drug exposure and volume change while the male patients had a positive correlation (
r=0.63). Therefore, there was a significant gender effect on the relationship between atypical neuroleptic exposure and changes in the structure of the caudate over time (test for difference in correlations:
z=2.39,
p=0.016).
Conclusions: The change in caudate nucleus volume over time with exposure to atypical neuroleptics may be sex-dependent. Atypical neuroleptic expsoure was associated with volume increase over time in the males, while exposure in females was associated with volume decrement over time.
Details
- Title: Subtitle
- Changes in caudate volume after exposure to atypical neuroleptics in patients with schizophrenia may be sex-dependent
- Creators
- Dwayne R Heitmiller - Department of Psychiatry, University of Iowa College of Medicine, Iowa City, IA, USAPeg C Nopoulos - Department of Psychiatry, University of Iowa College of Medicine, Iowa City, IA, USANancy C Andreasen - Department of Psychiatry, University of Iowa College of Medicine, Iowa City, IA, USA
- Resource Type
- Journal article
- Publication Details
- Schizophrenia research, Vol.66(2), pp.137-142
- Publisher
- Elsevier B.V
- DOI
- 10.1016/j.schres.2003.08.008
- PMID
- 15061245
- ISSN
- 0920-9964
- eISSN
- 1573-2509
- Language
- English
- Date published
- 2004
- Academic Unit
- Neurology; Psychiatry; Stead Family Department of Pediatrics; Iowa Neuroscience Institute
- Record Identifier
- 9984003985902771
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