期刊
NEUROIMMUNOMODULATION
卷 24, 期 6, 页码 310-319出版社
KARGER
DOI: 10.1159/000486597
关键词
Cytokine; Psychosis; Alzheimer; Vitamin B-12
资金
- Rafsanjan University of Medical Sciences
Introduction: Patients with Alzheimer disease (AD) suffer from psychotic symptoms including pain. The current antipsychotic drugs confer limited effectiveness, and hence new strategies are being designed to decrease pain in order to increase antipsychological effectiveness. Vitamin B-12 is a safe supplementary drug to decrease pain. Additionally, cytokines participate in the pathogenesis of immune-related diseases such as AD. Thus, the main aim of this clinical trial study was to determine the effects of treatment with risperidone and quetiapine, as antipsychotic drugs, with and without vitamin B-12 on the psychotic symptoms of AD patients and the expression of IL-6, IL-8, tumor growth factor (TGF)-beta, tumor necrosis factor (TNF)-alpha, and endothelin (ET)-1). Material and Methods: Serum levels of IL-6, IL-8, TGF-beta, TNF-alpha, and ET-1 were evaluated in the following groups: healthy controls, nonpsychotic AD patients, psychotic AD patients, psychotic AD patients under treatment with risperidone, psychotic AD patients under treatment with risperidone plus vitamin B-12, psychotic AD patients under treatment with quetiapine, and psychotic AD patients under treatment with quetiapine plus vitamin B-12. Results: Treatment with antipsychotic drugs plus vitamin B-12 led to a decreased expression of IL-8 and TNF-alpha and an increased expression of TGF-beta. Vitamin B-12 in association with quetiapine reduced the pain in psychotic AD patients. Discussion: Proinflammatory cytokines play important roles in the pathogenesis of psychosis in AD patients. Antipsychotic drugs plus vitamin B-12 can reduce and induce the expression of proinflammatory and anti-inflammatory cytokines to improve psychotic symptoms in AD patients. (C) 2018 S. Karger AG, Basel
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