Temperament traits mediate the relationship between CACNA1C polymorphisms and bipolar disorder in cisgender women.
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| Title: | Temperament traits mediate the relationship between CACNA1C polymorphisms and bipolar disorder in cisgender women. |
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| Authors: | Bastos, Clarissa Ribeiro (AUTHOR), Bock, Bertha Bueno (AUTHOR), Xavier, Janaina (AUTHOR), Camerini, Laísa (AUTHOR), Dewes, Samantha Seibt (AUTHOR), Grellert, Mateus (AUTHOR), de Carvalho, Hudson Wander (AUTHOR), Jansen, Karen (AUTHOR), da Silva, Ricardo Azevedo (AUTHOR), Pinheiro, Ricardo Tavares (AUTHOR), de Mattos Souza, Luciano (AUTHOR), Oses, Jean Pierre (AUTHOR), Portela, Luis Valmor (AUTHOR), Lara, Diogo Rizzato (AUTHOR), Tovo-Rodrigues, Luciana (AUTHOR), Ghisleni, Gabriele (AUTHOR) |
| Source: | European Archives of Psychiatry & Clinical Neuroscience. Feb2023, Vol. 273 Issue 1, p41-50. 10p. 2 Charts, 2 Graphs. |
| Subjects: | Bipolar disorder, Temperament, Sex (Biology), Haplotypes, Cisgender people |
| Geographic Terms: | Pelotas (Rio Grande do Sul, Brazil), Brazil |
| Abstract: | The influence of temperament traits on bipolar disorder (BD) has been investigated. Both temperament traits and BD are partially genetically determined and seem to be influenced by variations in the CACNA1C gene. These variations presented a significant interactive effect with biological sex, although studies that evaluate this relationship are scarce. Here, we assessed the mediation effect of temperament traits on the relationship between two polymorphisms in the CACNA1C gene (rs1006737 and rs4765913) and BD according to sex. This is a cross-sectional study consisting of 878 Caucasian individuals (508 women and 370 men), aged 18–35, enrolled in a population-based study in the city of Pelotas, Southern Brazil. BD diagnosis was evaluated using the clinical interview MINI 5.0, and temperament traits were assessed via the application of the Affective and Emotional Composite Temperament Scale (AFECTS). Mediation models were tested using the modeling tool PROCESS (version 3.3) for SPSS. Bootstrapping-enhanced mediation analyses in women indicated that traits anger (39%) and caution (27%) mediated the association between the rs4765913 SNP and BD, while traits volition (29%), anger (35%), and caution (29%) mediated the association between the AA haplotype (rs1006737–rs4765913) and the BD. No effect was encountered for cisgender men. Our model revealed that paths from CACNA1C SNPs to BD are mediated by specific temperament traits in women, reinforcing the definition of temperament traits as endophenotypes. [ABSTRACT FROM AUTHOR] |
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| Database: | Psychology and Behavioral Sciences Collection |
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