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Distinct Effects of Olanzapine Depot Treatment on Behavior and Muscarinic M1 Receptor Expression in the Triple-Hit Wisket Rat Model of Schizophrenia.
Genes Brain Behav
February 2025
Department of Physiology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary.
This study aimed to characterize the triple-hit schizophrenia-like model rats (Wisket) by the assessment of (1) behavioral parameters in different test conditions (reward-based Ambitus test and HomeManner system) for a prolonged period, (2) cerebral muscarinic M1 receptor (M1R) expression, and (3) the effects of olanzapine treatment on these parameters. Wistar (control) and Wisket rats were injected for three consecutive weeks with olanzapine depot (100 mg/kg) and spent 4 weeks in large cages with environmental enrichment (HomeManner). The vehicle-treated Wisket rats spent longer time awake with decreased grooming activity compared to controls, without changes in their active social behavior (sniffing, playing, fighting) obtained in HomeManner.
View Article and Find Full Text PDFReactivity of Olanzapine and Tricyclic Antidepressants on the Protective Effects of Trolox on Lipid Peroxidation Evaluated Using Fluorescence Anisotropy, Electron Paramagnetic Resonance Spectrometry, and Thermal Analysis.
ACS Chem Neurosci
January 2025
Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
Multiacting receptor-targeting antipsychotics and tricyclic antidepressants stimulate various neurotransmitter receptors despite the different targets of postsynaptic receptors and presynaptic reuptake transporters. Their auxiliary and adverse effects may be caused by multiple targets or the modification of the neuronal membrane. To evaluate the membrane responses to olanzapine, imipramine, desipramine, amitriptyline, lidocaine, and dibucaine, we examined the inhibition of lipid peroxidation in egg yolk phosphatidylcholine liposomes.
View Article and Find Full Text PDFEffects of lithium carbonate combined with olanzapine on glucose and lipid metabolism in the treatment of bipolar disorder and gender differences.
Pak J Pharm Sci
January 2025
Department of Psychiatry, the Fifth People's Hospital of Luoyang, Luoyang City, Henan Province.
To explore the effect of lithium carbonate combined with olanzapine on glucose and lipid metabolism, as well as gender differences in treating bipolar disorder (BD). 110 BD patients admitted to the Fifth People's Hospital of Luoyang from February 2022 to January 2024 were retrospectively included in the study. Patients were categorized into two groups based on treatment: The single group (lithium carbonate, n = 50) and the coalition group (lithium carbonate + olanzapine, n=60).
View Article and Find Full Text PDFIUPHAR themed review: The gut microbiome in schizophrenia.
Pharmacol Res
January 2025
UniSA Clinical & Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia. Electronic address:
Gut microbial dysbiosis or altered gut microbial consortium, in schizophrenia suggests a pathogenic role through the gut-brain axis, influencing neuroinflammatory and neurotransmitter pathways critical to psychotic, affective, and cognitive symptoms. Paradoxically, conventional psychotropic interventions may exacerbate this dysbiosis, with antipsychotics, particularly olanzapine, demonstrating profound effects on microbial architecture through disruption of bacterial phyla ratios, diminished taxonomic diversity, and attenuated short-chain fatty acid synthesis. To address these challenges, novel therapeutic strategies targeting the gut microbiome, encompassing probiotic supplementation, prebiotic compounds, faecal microbiota transplantation, and rationalised co-pharmacotherapy, show promise in attenuating antipsychotic-induced metabolic disruptions while enhancing therapeutic efficacy.
View Article and Find Full Text PDFA case report of mental disorder caused by shunt blockage after hydrocephalus surgery.
Front Psychiatry
December 2024
Department of Traditional Chinese Medicine, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Introduction: Hydrocephalus is a form of communication hydrocephalus syndrome characterized by ventricular enlargement and normal intraventricular pressure. The primary clinical manifestations include gait disturbances, cognitive dysfunction, urinary incontinence, and either elevated or normal intracranial pressure. This paper presents a case of a mental disorder resulting from inadequate drainage following a ventriculoperitoneal shunt procedure for hydrocephalus.
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