TY - JOUR
T1 - APOE ε4 and the influence of sex, age, vascular risk factors, and ethnicity on cognitive decline
AU - Makkar, Steve R.
AU - Lipnicki, Darren M.
AU - Crawford, John D.
AU - Kochan, Nicole A.
AU - Castro-Costa, Erico
AU - Lima-Costa, Maria Fernanda
AU - Diniz, Breno Satler
AU - Brayne, Carol
AU - Stephan, Blossom
AU - Matthews, Fiona
AU - Llibre-Rodriguez, Juan J.
AU - Llibre-Guerra, Jorge J.
AU - Valhuerdi-Cepero, Adolfo J.
AU - Lipton, Richard B.
AU - Katz, Mindy J.
AU - CuilingWang,
AU - Ritchie, Karen
AU - Carles, Sophie
AU - Carriere, Isabelle
AU - Scarmeas, Nikolaos
AU - Yannakoulia, Mary
AU - Kosmidis, Mary
AU - Lam, Linda
AU - Chan, Wai Chi
AU - Fung, Ada
AU - Guaita, Antonio
AU - Vaccaro, Roberta
AU - Davin, Annalisa
AU - Kim, Ki Woong
AU - Han, Ji Won
AU - Suh, Seung Wan
AU - Riedel-Heller, Steffi G.
AU - Roehr, Susanne
AU - Pabst, Alexander
AU - Ganguli, Mary
AU - Hughes, Tiffany F.
AU - Snitz, Beth
AU - Anstey, Kaarin J.
AU - Cherbuin, Nicolas
AU - Easteal, Simon
AU - Haan, Mary N.
AU - Aiello, Allison E.
AU - Dang, Kristina
AU - Ng, Tze Pin
AU - Gao, Qi
AU - Nyunt, Ma Shwe Zin
AU - Brodaty, Henry
AU - Trollor, Julian N.
AU - Leung, Yvonne
AU - Lo, Jessica W.
AU - Sachdev, Perminder
N1 - Publisher Copyright:
© The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved.
PY - 2020/10/1
Y1 - 2020/10/1
N2 - We aimed to examine the relationship between Apolipoprotein E ε4 (APOE*4) carriage on cognitive decline, and whether these associations were moderated by sex, baseline age, ethnicity, and vascular risk factors. Participants were 19,225 individuals aged 54–103 years from 15 longitudinal cohort studies with a mean follow-up duration ranging between 1.2 and 10.7 years. Two-step individual participant data meta-analysis was used to pool results of study-wise analyses predicting memory and general cognitive decline from carriage of one or two APOE*4 alleles, and moderation of these associations by age, sex, vascular risk factors, and ethnicity. Separate pooled estimates were calculated in both men and women who were younger (ie, 62 years) and older (ie, 80 years) at baseline. Results showed that APOE*4 carriage was related to faster general cognitive decline in women, and faster memory decline in men. A stronger dose-dependent effect was observed in older men, with faster general cognitive and memory decline in those carrying two versus one APOE*4 allele. Vascular risk factors were related to an increased effect of APOE*4 on memory decline in younger women, but a weaker effect of APOE*4 on general cognitive decline in older men. The relationship between APOE*4 carriage and memory decline was larger in older-aged Asians than Whites. In sum, APOE*4 is related to cognitive decline in men and women, although these effects are enhanced by age and carriage of two APOE*4 alleles in men, a higher numbers of vascular risk factors during the early stages of late adulthood in women, and Asian ethnicity.
AB - We aimed to examine the relationship between Apolipoprotein E ε4 (APOE*4) carriage on cognitive decline, and whether these associations were moderated by sex, baseline age, ethnicity, and vascular risk factors. Participants were 19,225 individuals aged 54–103 years from 15 longitudinal cohort studies with a mean follow-up duration ranging between 1.2 and 10.7 years. Two-step individual participant data meta-analysis was used to pool results of study-wise analyses predicting memory and general cognitive decline from carriage of one or two APOE*4 alleles, and moderation of these associations by age, sex, vascular risk factors, and ethnicity. Separate pooled estimates were calculated in both men and women who were younger (ie, 62 years) and older (ie, 80 years) at baseline. Results showed that APOE*4 carriage was related to faster general cognitive decline in women, and faster memory decline in men. A stronger dose-dependent effect was observed in older men, with faster general cognitive and memory decline in those carrying two versus one APOE*4 allele. Vascular risk factors were related to an increased effect of APOE*4 on memory decline in younger women, but a weaker effect of APOE*4 on general cognitive decline in older men. The relationship between APOE*4 carriage and memory decline was larger in older-aged Asians than Whites. In sum, APOE*4 is related to cognitive decline in men and women, although these effects are enhanced by age and carriage of two APOE*4 alleles in men, a higher numbers of vascular risk factors during the early stages of late adulthood in women, and Asian ethnicity.
KW - APOE genotype
KW - Cognitive decline
KW - Epidemiology
KW - Ethnicity
KW - Sex
UR - http://www.scopus.com/inward/record.url?scp=85087430028&partnerID=8YFLogxK
U2 - 10.1093/gerona/glaa116
DO - 10.1093/gerona/glaa116
M3 - Article
C2 - 32396611
AN - SCOPUS:85087430028
VL - 75
SP - 1863
EP - 1873
JO - Journals of Gerontology - Series A Biological Sciences and Medical Sciences
JF - Journals of Gerontology - Series A Biological Sciences and Medical Sciences
SN - 1079-5006
IS - 10
ER -