Functional polymorphism of genes inactivating biogenic amines and cognitive deficits in paranoid schizophrenia

Aim. The aim of the work was to assess relationship between gene polymorphism of enzymes influencing dopaminergic-, serotoninergic, and noradrenergic transfer and cognitive functioning of paranoid schizophrenic inpatients (ICD-10). Method. The following methods have been used in the study: The Test of Everyday Attention (TEA) and The Visual Object and Space Perception Battery (VOSP), psychiatric scales (SAPS, SANS, BDI) and techniques of genetic engineering (PCR reaction, RFLP and VNTR techniques). Subject groups included 100 schizophrenic patients (57 male) and 50 healthy controls (20 male). Results. The results revealed positive correlation between polymorphism of Val158Met-COMT and cognitive deficits in schizophrenic patients. No statistically significant relationship was elicited between gene polymorphism of Val158Met COMT and VNTR MAO-A in promoter area and schizophrenia onset. Allelic polymorphism of Val158Met OMT and VNTR MAO-A in promoter area did not differ between the subject groups. The patients with genotype Val/Val of polymorphism Val 158MetCOMT showed major cognitive deficits.

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eISSN:	2391-5854
ISSN:	0033-2674

The journal is supported by the State Treasury as part of the Development of Scientific Journals (RCN) program
Project no. RCN/SN/0610/2021/1 implemented from 2022 to 2024
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Aims of the project: Publication in Open Access mode on the Internet of English and Polish language versions of 12 consecutive issues of the journal Psychiatria Polska (years 2022-2024). Modernization and redesign of the journal’s website. Financing of the Editorial System. Copy editing and proofreading of journal issues. Counteracting scientific misinformation. Submission of electronic versions of the journal to the National Digital Library Polona and the Digital Library of Scientific Publications Academica.