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Background: The neurobiological basis of delusional disorder is less explored through neuroimaging techniques than in other psychotic disorders. This study aims to provide information about the neural origins of delusional disorder (DD) by examining the neuroanatomical features of some basal nuclei with magnetic resonance imaging (MRI) texture analysis.
Materials And Methods: Twenty DD patients and 20 healthy individuals were included in the study. Globus pallidus, putamen, and caudate nuclei were selected individually with a region of interest (ROI) on the axial MRI images. The entire texture analysis algorithm applied to all selected ROIs was done with an in-house software. Nuclei on both sides were taken as separate samples.
Results: There were no significant differences between groups in terms of age and gender. The average "mean, median and maximum" values of all three nuclei were decreased in DD patients. The small putamen area and the differences detected in different tissue parameters for all three nuclei in delusional disorder patients indicate that they differ in delusional disorder from normal controls (p < 0.05).
Conclusion: The differences detected in the texture parameters for all three nuclei indicate that there is something different in the DD from in the normal controls. Neuroimaging studies with larger samples and different techniques in the future may shed light on the etiology of delusional disorder.
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http://dx.doi.org/10.62641/aep.v52i3.1604 | DOI Listing |
Front Biosci (Landmark Ed)
August 2025
Laboratory of Molecular Biology, Research Centre for Medical Genetics (RCMG), 115522 Moscow, Russia.
Background: Schizophrenia (SZ) is associated with chronic oxidative stress in the patient's body. Previous studies revealed an increased copy number of genes for 47S pre-ribosomal RNA (pre-rRNA) in SZ patients. In this study, levels of oxidative stress and factors involved in the adaptive response to chronic stress (rDNA transcription) were, for the first time, compared in blood cells of patients with catatonic SZ(C) and paranoid SZ(P), chronic forms of schizophrenia, as well as healthy controls (HC).
View Article and Find Full Text PDFSchizophr Res
September 2025
Columbia University and the New York State Psychiatric Institute, 1051 Riverside Drive, New York, NY 10032, United States of America.
Purpose: Heterogeneity among people diagnosed with schizophrenia-spectrum disorders (schizophrenia) and high prevalence of co-occurring disorders makes identification of optimal treatments difficult. This study identified behavioral health phenotypes using machine learning with Medicaid claims of adults with schizophrenia. We compared the phenotypes' clinical outcomes and psychotropic medication prescription patterns for clinical validity.
View Article and Find Full Text PDFEur Arch Psychiatry Clin Neurosci
September 2025
Department of Psychiatry, University of Pittsburgh, 121 Meyran Avenue, Pittsburgh, PA, 15213, USA.
Psychotic-like experiences (PLEs) -subclinical experiences or symptoms that resemble psychosis, such as hallucinations and delusional thoughts-often emerge during adolescence and are predictive of serious psychopathology. Understanding PLEs during adolescence is crucial due to co-occurring developmental changes in neural reward systems that heighten the risk for psychotic-related and affective psychopathology, especially in those with a family history of severe mental illness (SMI). We examined associations among PLEs, clinical symptoms, and neural reward function during this critical developmental period.
View Article and Find Full Text PDFJ Clin Psychopharmacol
September 2025
LVR Institute for Research and Education, Department of Research.
Background: The objective of this study was to characterize real-world prescription patterns of antipsychotic drugs in patients with various psychiatric disorders with psychotic features.
Method: We analyzed the discharge prescription plans of 59,962 cases with the main diagnoses schizophrenia, schizoaffective disorder, acute transient psychotic disorder, delusional disorder, psychotic bipolar disorder, psychotic depression, organic delusional disorder or substance-induced psychosis. We analyzed the overall use, pharmacological subgroups, the use of long-acting injectable (LAI) formulations, and the frequency of prescription of the singular antipsychotic drugs.
Nervenarzt
September 2025
Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, University of Augsburg, Augsburg, Germany.
The classification of psychotic disorders has undergone a variety of changes. Since Karl Ludwig Kahlbaum's (Kahlbaum 1874) first descriptions of catatonic states and Emil Kraepelin's (Kraepelin 1883) nosological classification of psychotic syndromes in the second half of the nineteenth century, the diagnostic criteria for these disorders have been repeatedly modified, significantly impacting clinical practice. Eugen Bleuler (Bleuler 1911) coined the term "schizophrenia", emphasizing the disturbances in thinking, feeling and acting that he had observed.
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