Results 141 to 150 of about 23,676,347 (287)

Causal mediation analysis with mediator values below an assay limit

open access: yesStatistics in Medicine
Causal indirect and direct effects provide an interpretable method for decomposing the total effect of an exposure on an outcome into the indirect effect through a mediator and the direct effect through all other pathways. A natural choice for a mediator in a randomized clinical trial is the treatment's targeted biomarker. However, when the mediator is
Ariel Chernofsky   +2 more
openaire   +3 more sources

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

open access: yesMolecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary   +1 more
wiley   +1 more source

Role of plasma metabolome in mediating the effect of plasma lipidome on NAFLD: a Mendelian randomization study

open access: yesFrontiers in Endocrinology
BackgroundThis study explored the causal connection among the plasma lipidome, nonalcoholic fatty liver disease (NAFLD), and potential metabolome mediators through Mendelian randomization (MR).MethodsWe obtained summary statistics for 179 plasma lipidome
Zhuyuan Zheng   +7 more
doaj   +1 more source

Causal mediation analysis with one or multiple mediators: A comparative study.

open access: yesPsychological Methods
Mediation analysis breaks down the causal effect of a treatment on an outcome into an indirect effect, acting through a third group of variables called mediators, and a direct effect, operating through other mechanisms. Mediation analysis is hard because confounders between treatment, mediators, and outcome blur effect estimates in observational ...
Abécassis, Judith   +4 more
openaire   +3 more sources

Developmental programmes drive cellular plasticity, disease progression and therapy resistance in lung adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
This study shows that lung adenocarcinomas exploit developmental branching morphogenesis to acquire a therapy resistant basal‐like tumour cell state. This process was found to be regulated by combined TP53 loss‐of‐function and type‐I interferon signalling, identifying a novel axis for biomarker and therapeutic target discovery.
Kamila J Bienkowska   +13 more
wiley   +1 more source

Mechanisms of implementing public health interventions: A pooled causal mediation analysis of randomised trials

open access: yes, 2018
Mechanisms of implementing public health interventions: A pooled causal mediation analysis of randomised ...
N Nathan (56936)   +9 more
core  

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

open access: yesMolecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis   +3 more
wiley   +1 more source

USP29‐regulated noncanonical stabilization of the hypoxia‐inducible factor‐α in aggressive prostate cancer

open access: yesMolecular Oncology, EarlyView.
We identify USP29 as the only DUB mirroring CA9 expression, a marker of hypoxia and HIF pathway activation associated with PCA aggressiveness. USP29 stabilizes HIF‐1α and HIF‐2α via a noncanonical mechanism that is independent of PHD/pVHL activity yet relies on proteasomal regulation, establishing USP29 as a previously unrecognized regulator of hypoxic
Amelie S Schober   +16 more
wiley   +1 more source

Nonparametric Regression Methods for Causal Mediation Analysis

open access: yes, 2019
Causal mediation analysis is a popular approach to quantify the mechanisms through which an exposure operates on an outcome. Using causal mediation analysis, one can decompose the total effect (TE) of an exposure on an outcome into the pathway that ...
Devick, Katrina Leigh
core   +2 more sources

CXCL10 promotes non-small cell lung cancer (NSCLC) progression by modulating the phosphate to urate ratio (PUR)

open access: yesDiscover Oncology
This study aims to explore the causal relationships and mechanisms between NSCLC-related genes, metabolites, and NSCLC using Mendelian Randomization (MR).
Yonglun Zhang, Qian Li
doaj   +1 more source

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