ArticleTurk psikiyatri dergisi = Turkish journal of psychiatry2025
Peripheral Circular RNA Expression Levels in Schizophrenia and Schizoaffective Disorder: Associations with Clinical Characteristics and Behavioral Phenotypes.
Article in Turk psikiyatri dergisi = Turkish journal of psychiatry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveCircular RNA (circRNA) molecules may play a significant role in the pathogenesis of psychiatric disorders by regulating synaptic gene expression. This study aimed to evaluate the relationship between the peripheral expression levels of three circRNA molecules (chr3_196488683, chr5_69175537, and hsa_circ_0084021) and clinical characteristics, specifically behavioral phenotypes related to self-harm and harm to others, in individuals diagnosed with schizophrenia and schizoaffective disorder.
methodsThe study included 104 patients aged 18–65 diagnosed with schizophrenia or schizoaffective disorder. RNA was isolated from peripheral blood, and circRNA molecules were identified using RNA sequencing techniques. Clinical status was assessed using the Positive and Negative Syndrome Scale, Clinical Global Impressions Scale, Global Assessment of Functioning, Calgary Depression Scale for Schizophrenia, Beck Anxiety Inventory, Beck Scale for Suicide Ideation, and Suicide Probability Scale. The relationship between concurrent circRNA levels and clinical features was investigated.
resultsA significant positive correlation was observed among the circRNAs (p<0.001). Apart from a weak positive correlation between chr3_196488683 and the Beck Anxiety Inventory score (r=0.213, p=0.03), no significant relationship was found between clinical scales and circRNAs. No significant difference was detected between groups regarding suicidal behavior. However, mean levels of all circRNAs were found to be statistically significantly higher in the group with self-injurious behavior (chr3_196488683, p=0.036; chr5_69175537, p=0.001; hsa_circ_0084021, p=0.045). Similarly, levels of chr3_196488683 and chr5_69175537 were significantly higher in the group with homicidal behavior (p<0.001).
conclusionThe findings suggest that peripheral circRNA levels may be associated with anxiety and behavioral risk profiles involving harm to self or others, indicating their potential value as biomarkers.
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