Pleiotropy-robust Mendelian randomization

H Van Kippersluis, CA Rietveld - International journal of …, 2018 - academic.oup.com
Background The potential of Mendelian randomization studies is rapidly expanding due to: (i)
the growing power of genome-wide association study (GWAS) meta-analyses to detect …

Pleiotropy robust methods for multivariable Mendelian randomization

AJ Grant, S Burgess - Statistics in medicine, 2021 - Wiley Online Library
… An assumption that is often required for pleiotropy robust Mendelian randomization is the
InSIDE assumption (instrument strength independent of direct effects). At a ‘population’ level, …

Weak and pleiotropy robust sex‐stratified Mendelian randomization in the one sample and two sample settings

V Karageorgiou, J Tyrrell, TJ Mckinley… - Genetic …, 2023 - Wiley Online Library
… We provide a simple but attractive method for weak and pleiotropy robust causal estimation
of sexually dimorphic traits on downstream outcomes, by combining several existing …

Evaluating the potential role of pleiotropy in Mendelian randomization studies

G Hemani, J Bowden… - Human molecular …, 2018 - academic.oup.com
… If pleiotropy arises because the single nucleotide polymorphism (SNP) influences one
trait, which in turn influences another (‘vertical pleiotropy’), then Mendelian randomization (MR) …

Testing and correcting for weak and pleiotropic instruments in two‐sample multivariable Mendelian randomization

E Sanderson, W Spiller, J Bowden - Statistics in medicine, 2021 - Wiley Online Library
… , however limited methods are available for pleiotropy robust MVMR models. Furthermore, in
the … The major contribution of this article is to extend weak instrument and pleiotropy robust

[PDF][PDF] Weak-Instrument and Pleiotropy-Robust Methods for Mendelian randomisation, with Applications to Mental Health

V Karageorgiou - 2024 - ore.exeter.ac.uk
… The first contribution of this dissertation is the development of new methods for pleiotropy-robust
MR by leveraging sex specificity of phenotypes. These methods allow for more accurate …

Constrained maximum likelihood-based Mendelian randomization robust to both correlated and uncorrelated pleiotropic effects

H Xue, X Shen, W Pan - The American Journal of Human Genetics, 2021 - cell.com
… of Mendelian randomization (MR) to investigate causal relationships between pairs of
traits using SNPs as instrumental variables (IVs) based on observational data. In spite of the …

Testing and correcting for weak and pleiotropic instruments in two-sample multivariable mendelian randomisation

E Sanderson, W Spiller, J Bowden - BioRxiv, 2020 - biorxiv.org
… exposures, limited methods are available for pleiotropy robust MVMR models 4,13 . Furthermore,
in … The major contribution of this paper is to extend weak instrument pleiotropy robust

Exploiting horizontal pleiotropy to search for causal pathways within a Mendelian randomization framework

Y Cho, PC Haycock, E Sanderson, TR Gaunt… - Nature …, 2020 - nature.com
… While several ‘pleiotropy-robust’ methods attempt to model out pleiotropic effects by
assuming a particular model of genetic architecture, another strategy is to adjust for horizontal …

Detection of widespread horizontal pleiotropy in causal relationships inferred from Mendelian randomization between complex traits and diseases

M Verbanck, CY Chen, B Neale, R Do - Nature genetics, 2018 - nature.com
… and horizontal pleiotropy-robust MR methods associated with an IV-selection procedure.
The framework selected a method that involved horizontal pleiotropy (pleiotropy-robust method …