Apolipoprotein E polymorphism is associated with susceptibility to schizophrenia among Saudis

Archives of Medical Science : AMS
S Al-AsmaryA Al-Asmari

Abstract

Apolipoprotein E (APOE) genotypes influence the phenotype of several neurodegenerative disorders including Alzheimer's and Parkinson disease and may affect schizophrenia pathogenesis. This study was undertaken to determine the association between APOE gene polymorphisms and schizophrenia in the Saudi population. APOE allele and genotype frequencies were studied in 380 Saudi subjects including schizophrenia patients and matched controls using polymerase chain reaction (PCR) and reverse-hybridization techniques. The frequencies of the APOE allele ε2 and genotypes ε2/ε3 and ε2/ε4 were significantly higher in the schizophrenia patients as compared to controls, suggesting that the ε2 allele and its heterozygous genotypes may increase the susceptibility to schizophrenia. In contrast, the frequencies of the ε3 allele and ε3/ε3 genotype were lower in patients as compared to controls, suggesting a protective effect of APOE ε3 for schizophrenia. This study indicated that APOE ε4 was differentially associated with schizophrenia depending on the symptoms as the frequency of the ε4 allele was significantly higher in schizophrenia patients with positive symptoms. By contrast, no significant association between APOE ε4 and schizophrenia patie...Continue Reading

Citations

Oct 30, 2016·Journal of Clinical Laboratory Analysis·Quanbao WangWei Li
Jun 4, 2016·Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders·Hannan Al-RayesAbdulrahman Al-Asmari

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Methods Mentioned

BETA
PCR
electrophoresis
genotyping

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