Increased serum S100B in elderly, chronic schizophrenic patients: negative correlation with deficit symptoms

Schmitt, A., Bertsch, T., Henning, U., Tost, H., Klimke, A., Henn, F. A., Falkai, P. (December 2005) Increased serum S100B in elderly, chronic schizophrenic patients: negative correlation with deficit symptoms. Schizophr Res, 80 (2-3). pp. 305-13. ISSN 0920-9964 (Print)

DOI: 10.1016/j.schres.2005.04.013


In schizophrenia, elevations of serum and CSF S100B levels have been reported and related to state of the disease and negative symptoms. In elderly chronic schizophrenic inpatients with stable medication, S100B may be increased and correlated to psychopathology and neuropsychological deficits. We have measured serum levels of S100B in 41 elderly, chronic schizophrenic patients and 23 age- and gender-matched controls using an immunoluminometric assay. In patients, we assessed detailed psychopathology and neuropsychological performance and determined serum levels of haloperidol, clozapine and its two main metabolites desmethylclozapine and clozapine metabolite N-oxid by HPLC. S100B levels were increased in elderly chronic schizophrenic patients compared to healthy controls. In patients, levels were negatively correlated with deficit symptoms and positively with age. There were no significant differences of S100B between medication groups and no correlation with serum levels of antipsychotics or neuropsychological scores. Elevations of S100B in elderly chronic schizophrenic patients may be related to an active disease process lasting until old-age. Correlations point to the impact of S100B in neuroplasticity and ageing. Post-mortem studies should clarify the presence of altered S100B function in the brain and its relationship to neuroplastic or neurodegenerative processes.

Item Type: Paper
Uncontrolled Keywords: Aged Antipsychotic Agents/blood/therapeutic use Chronic Disease Clozapine/blood/therapeutic use Cognition Disorders/ diagnosis/etiology Depressive Disorder, Major/ diagnosis/etiology Female Haloperidol/blood/therapeutic use Humans Male Middle Aged Nerve Growth Factors/ blood/cerebrospinal fluid Neuropsychological Tests Psychological Tests S100 Proteins/ blood/cerebrospinal fluid Schizophrenia/ blood/drug therapy/ physiopathology Schizophrenic Psychology Severity of Illness Index
Subjects: diseases & disorders
diseases & disorders > mental disorders
diseases & disorders > mental disorders > schizophrenia
organism description > animal > mammal > primates > hominids > human
CSHL Authors:
Communities: CSHL labs > Henn lab
Depositing User: Matt Covey
Date: 15 December 2005
Date Deposited: 01 Mar 2013 21:42
Last Modified: 01 Mar 2013 21:42
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