Effects of risperidone and olanzapine on remnant-like lipoprotein particle cholesterol (RLP-C) in schizophrenic patients
Takahiko NagamineDivision of Psychiatric Internal Medicine, Seiwakai-Kitsunan Hospital, Suzenji, JapanAbstract: Second generation antipsychotics are associated with the risk of metabolic disorders such as diabetes mellitus and hyperlipidemia. Remnant-like lipoprotein particles cholesterol (RLP-C) ar...
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| Formato: | article |
| Lenguaje: | EN |
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Dove Medical Press
2008
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| Acceso en línea: | https://doaj.org/article/df8e51ae21ca49a38a2d94057181bdfb |
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| Sumario: | Takahiko NagamineDivision of Psychiatric Internal Medicine, Seiwakai-Kitsunan Hospital, Suzenji, JapanAbstract: Second generation antipsychotics are associated with the risk of metabolic disorders such as diabetes mellitus and hyperlipidemia. Remnant-like lipoprotein particles cholesterol (RLP-C) are a known risk factor for cardiovascular events. The present study was performed to determine possible differences in fasting blood RLP-C levels between schizophrenic patients treated with risperidone as compared to olanzapine. Patients on olanzapine had significantly higher RLP-C levels than those on risperidone (p < 0.01). In olanzapine-treated patients there was no abnormality in fasting blood glucose levels, but fasting insulin levels and homeostasis model assessment of insulin resistance (HOMA-IR) were elevated. RLP-C levels were significantly correlated with plasma triglyceride concentrations in both the olanzapine- (p < 0.01) and risperidone-treated patients (p < 0.01). The regression line slope was greater for the olanzapine group, suggesting a greater influence of olanzapine on RLP-C. There was a significant correlation between RLP-C and HOMA-IR in the risperidone group (p < 0.01) but not in the olanzapine group (p = 0.80). These results suggest that blood glucose monitoring may not be sufficient to detect metabolic disorder and that measurement of RLP-C might be helpful for the screening for metabolic disorders associated with olanzapine therapy.Keywords: remnant-like lipoprotein particles cholesterol (RLP-C), schizophrenia, insulin resistance, risperidone, olanzapine |
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