Association of dopamine receptor D2 -141C insertion/deletion and dopamine beta-hydroxylase 19 bp insertion/deletion polymorphisms with schizophrenia: A case-control study in the eastern Algerian population

Numerous studies emphasize genetic contributions to schizophrenia, particularly focusing on genes coding for proteins in the dopaminergic pathway, which are extensively studied for their involvement in the disorder’s pathophysiology. This investigation aimed to examine the potential association betw...

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Main Authors: Boukhenaf Yasmina, Sariyah Ayachi Ouarda, Achou Rayene, Iness Bernou Amina, Zohra Madoui Fatima, Sifi Karima, Larbi Rezgoun Mohamed
Format: Article
Language:English
Published: University of Belgrade, University of Novi Sad 2024-01-01
Series:Archives of Biological Sciences
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Online Access:https://doiserbia.nb.rs/img/doi/0354-4664/2024/0354-46642400023B.pdf
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author Boukhenaf Yasmina
Sariyah Ayachi Ouarda
Achou Rayene
Iness Bernou Amina
Zohra Madoui Fatima
Sifi Karima
Larbi Rezgoun Mohamed
author_facet Boukhenaf Yasmina
Sariyah Ayachi Ouarda
Achou Rayene
Iness Bernou Amina
Zohra Madoui Fatima
Sifi Karima
Larbi Rezgoun Mohamed
author_sort Boukhenaf Yasmina
collection DOAJ
description Numerous studies emphasize genetic contributions to schizophrenia, particularly focusing on genes coding for proteins in the dopaminergic pathway, which are extensively studied for their involvement in the disorder’s pathophysiology. This investigation aimed to examine the potential association between the dopamine receptor D2 (DRD2) -141C insertion/ deletion (rs1799732) and the dopamine beta-hydroxylase (DBH) 19 bp insertion/deletion (rs72393728) polymorphisms with schizophrenia in an eastern Algerian population. A case-control study was conducted, involving 145 patients and 146 healthy controls. DNA samples were extracted from peripheral blood cells using the salting out technique. Genotyping for the DRD2 rs1799732 polymorphism was performed using the PCR-RFLP method, while the DBH rs72393728 polymorphism was analyzed using the PCR method. The results revealed a significant association between the DRD2 rs1799732 polymorphism and schizophrenia, evidenced by significant differences in genotypic and allelic distributions between patients and controls (P=0.001 and P=0.001, respectively). However, no statistical differences were found for the DBH rs72393728 polymorphism between patients and controls for genotype (P=0.46) or allele frequencies (P=0.73). This study supports an association between DRD2 rs1799732 polymorphism and schizophrenia in this population while finding no such association with DBH rs72393728 polymorphism. However, there may be a potential interaction between both polymorphisms.
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spelling doaj-art-df33ed1edd7d445383c5e4e1a838128d2025-01-30T06:38:33ZengUniversity of Belgrade, University of Novi SadArchives of Biological Sciences0354-46641821-43392024-01-0176331332410.2298/ABS240526023B0354-46642400023BAssociation of dopamine receptor D2 -141C insertion/deletion and dopamine beta-hydroxylase 19 bp insertion/deletion polymorphisms with schizophrenia: A case-control study in the eastern Algerian populationBoukhenaf Yasmina0https://orcid.org/0009-0003-5159-5921Sariyah Ayachi Ouarda1https://orcid.org/0000-0003-4522-3219Achou Rayene2https://orcid.org/0009-0004-0709-0130Iness Bernou Amina3https://orcid.org/0009-0005-6290-3058Zohra Madoui Fatima4https://orcid.org/0009-0007-6654-4085Sifi Karima5https://orcid.org/0009-0000-7132-5150Larbi Rezgoun Mohamed6https://orcid.org/0000-0003-1269-7039Laboratory of Molecular and Cellular Biology, Department of Animal Biology, University of Constantine, Constantine, AlgeriaPathology, Diagnosis and Therapy, Health and Biotechnology division, National Research Center of Biotechnology, Constantine, AlgeriaLaboratory of Molecular and Cellular Biology, Department of Animal Biology, University of Constantine, Constantine, AlgeriaLaboratory of Molecular and Cellular Biology, Department of Animal Biology, University of Constantine, Constantine, AlgeriaPsychiatric Hospital Mahmoud BELAMRI, Constantine, AlgeriaLaboratory of Biology and Molecular Genetics, University Hospital Center Benbadis, University of Constantine, Constantine, AlgeriaLaboratory of Molecular and Cellular Biology, Department of Animal Biology, University of Constantine , Constantine, AlgeriaNumerous studies emphasize genetic contributions to schizophrenia, particularly focusing on genes coding for proteins in the dopaminergic pathway, which are extensively studied for their involvement in the disorder’s pathophysiology. This investigation aimed to examine the potential association between the dopamine receptor D2 (DRD2) -141C insertion/ deletion (rs1799732) and the dopamine beta-hydroxylase (DBH) 19 bp insertion/deletion (rs72393728) polymorphisms with schizophrenia in an eastern Algerian population. A case-control study was conducted, involving 145 patients and 146 healthy controls. DNA samples were extracted from peripheral blood cells using the salting out technique. Genotyping for the DRD2 rs1799732 polymorphism was performed using the PCR-RFLP method, while the DBH rs72393728 polymorphism was analyzed using the PCR method. The results revealed a significant association between the DRD2 rs1799732 polymorphism and schizophrenia, evidenced by significant differences in genotypic and allelic distributions between patients and controls (P=0.001 and P=0.001, respectively). However, no statistical differences were found for the DBH rs72393728 polymorphism between patients and controls for genotype (P=0.46) or allele frequencies (P=0.73). This study supports an association between DRD2 rs1799732 polymorphism and schizophrenia in this population while finding no such association with DBH rs72393728 polymorphism. However, there may be a potential interaction between both polymorphisms.https://doiserbia.nb.rs/img/doi/0354-4664/2024/0354-46642400023B.pdfdopaminegenetic polymorphismsdrd2dbhschizophrenia
spellingShingle Boukhenaf Yasmina
Sariyah Ayachi Ouarda
Achou Rayene
Iness Bernou Amina
Zohra Madoui Fatima
Sifi Karima
Larbi Rezgoun Mohamed
Association of dopamine receptor D2 -141C insertion/deletion and dopamine beta-hydroxylase 19 bp insertion/deletion polymorphisms with schizophrenia: A case-control study in the eastern Algerian population
Archives of Biological Sciences
dopamine
genetic polymorphisms
drd2
dbh
schizophrenia
title Association of dopamine receptor D2 -141C insertion/deletion and dopamine beta-hydroxylase 19 bp insertion/deletion polymorphisms with schizophrenia: A case-control study in the eastern Algerian population
title_full Association of dopamine receptor D2 -141C insertion/deletion and dopamine beta-hydroxylase 19 bp insertion/deletion polymorphisms with schizophrenia: A case-control study in the eastern Algerian population
title_fullStr Association of dopamine receptor D2 -141C insertion/deletion and dopamine beta-hydroxylase 19 bp insertion/deletion polymorphisms with schizophrenia: A case-control study in the eastern Algerian population
title_full_unstemmed Association of dopamine receptor D2 -141C insertion/deletion and dopamine beta-hydroxylase 19 bp insertion/deletion polymorphisms with schizophrenia: A case-control study in the eastern Algerian population
title_short Association of dopamine receptor D2 -141C insertion/deletion and dopamine beta-hydroxylase 19 bp insertion/deletion polymorphisms with schizophrenia: A case-control study in the eastern Algerian population
title_sort association of dopamine receptor d2 141c insertion deletion and dopamine beta hydroxylase 19 bp insertion deletion polymorphisms with schizophrenia a case control study in the eastern algerian population
topic dopamine
genetic polymorphisms
drd2
dbh
schizophrenia
url https://doiserbia.nb.rs/img/doi/0354-4664/2024/0354-46642400023B.pdf
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