APOE ϵ4, rated life experiences, and affect among centenarians.
Aging Ment Health
; 18(2): 240-7, 2014 Mar.
Article
em En
| MEDLINE
| ID: mdl-23998924
ABSTRACT
OBJECTIVES:
The purpose of this study was to assess the relationship between apolipoprotein E (APOE), life events and engagement, and subjective well-being (as measured by positive and negative affect) among centenarians. Based on the life stress paradigm, we predicted that higher levels of stress would allow APOE to influence positive and negative affect.METHOD:
196 centenarians and near-centenarians (98 years and older) of the Georgia Centenarian Study participated in this research. The APOE, positive and negative affect, the number of recent (last 2 years) and lifelong (more than 20 years prior to testing) events, as well as a number of life engagement tasks were assessed.RESULTS:
Results suggested that centenarians carrying the APOE ϵ4 allele rated lower in positive affect, the number of lifelong events, and in engaged lifestyle, when compared to centenarians without the APOE ϵ4 allele (t = 3.43, p < .01; t = 3.19, p < .01; and t = 2.33, p < .05, respectively). Blockwise multiple regressions indicated that the APOE ϵ4 predicted positive but not negative affect after controlling for demographics. Gene-environment interactions were obtained for the APOE ϵ4 and lifelong events, suggesting that carriers of the APOE ϵ4 allele had higher scores of negative affect after having experienced more events, whereas noncarriers had reduced negative affect levels after having experienced more events.CONCLUSION:
APOE ϵ4 is directly related to positive affect and is related to negative affect in interaction with life events.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Qualidade de Vida
/
Afeto
/
Apolipoproteína E4
/
Interação Gene-Ambiente
/
Acontecimentos que Mudam a Vida
Tipo de estudo:
Prognostic_studies
Limite:
Aged80
/
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article