Power and optimal study design in iPSC-based brain disease modelling.
Mol Psychiatry
; 28(4): 1545-1556, 2023 04.
Article
em En
| MEDLINE
| ID: mdl-36385170
ABSTRACT
Studies using induced pluripotent stem cells (iPSCs) are gaining momentum in brain disorder modelling, but optimal study designs are poorly defined. Here, we compare commonly used designs and statistical analysis for different research aims. Furthermore, we generated immunocytochemical, electrophysiological, and proteomic data from iPSC-derived neurons of five healthy subjects, analysed data variation and conducted power simulations. These analyses show that published case-control iPSC studies are generally underpowered. Designs using isogenic iPSC lines typically have higher power than case-control designs, but generalization of conclusions is limited. We show that, for the realistic settings used in this study, a multiple isogenic pair design increases absolute power up to 60% or requires up to 5-fold fewer lines. A free web tool is presented to explore the power of different study designs, using any (pilot) data.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Encefalopatias
/
Células-Tronco Pluripotentes Induzidas
Limite:
Humans
Idioma:
En
Revista:
Mol Psychiatry
Assunto da revista:
BIOLOGIA MOLECULAR
/
PSIQUIATRIA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Holanda