ArticleNeuroImage2014
Multi-site study of additive genetic effects on fractional anisotropy of cerebral white matter: Comparing meta and megaanalytical approaches for data pooling.
Article in NeuroImage, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 9 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
95 citing papers in PubMed, 9 syntheses or guidelines pooled it.
- Identification and validation of supervariants reveal novel loci associated with human white matter microstructure.Genome research · 2024Pooled it
- Ancestral, Pregnancy, and Negative Early-Life Risks Shape Children's Brain (Dis)similarity to Schizophrenia.Biological psychiatry · 2023Pooled it
- Abnormal hemispheric asymmetry of both brain function and structure in attention deficit/hyperactivity disorder: a meta-analysis of individual participant data.Brain imaging and behavior · 2022Pooled it
- Altered white matter microstructural organization in posttraumatic stress disorder across 3047 adults: results from the PGC-ENIGMA PTSD consortium.Molecular psychiatry · 2021Pooled it
- White matter microstructural alterations across four major psychiatric disorders: mega-analysis study in 2937 individuals.Molecular psychiatry · 2020Pooled it
- Widespread white matter microstructural abnormalities in bipolar disorder: evidence from mega- and meta-analyses across 3033 individuals.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2019Pooled it
- Heterochronicity of white matter development and aging explains regional patient control differences in schizophrenia.Human brain mapping · 2016Pooled it
- The second decade of DTI in TBI Part 2: a systematic review of moderate and severe TBI.Frontiers in neurologyPooled it
- The second decade of DTI in TBI part 1: a systematic review of mild TBI.Frontiers in neurologyPooled it
- Multi-organ imaging genetics: towards an integrated view of brain, body and brain diseases.Nature reviews. Neurology · 2026Review
- Inferring multi-organ genetic connections using imaging and clinical data through Mendelian randomization.Nature biomedical engineering · 2026Article
- Multi-organ imaging and genetics show the impact of sleep patterns on the human brain and body.Communications medicine · 2026Article
- Brain morphology in Anorexia Nervosa and its subtypes: A multi-cohort study of individual participant data.PLoS medicine · 2026Article
- Hemispheric Asymmetry in the Genetic Overlap between Schizophrenia and White Matter Microstructure.Cyborg and bionic systems (Washington, D.C.) · 2026Article
- Family History of Substance Use and Stressful Life Events Impact Adolescent Maturation of Cerebral White Matter.Addiction biology · 2025Article
- White matter microstructure changes across the lifespan: a meta-analysis of longitudinal diffusion MRI studies.bioRxiv : the preprint server for biology · 2025Article
- Rethinking MRI as a measurement device through modular and portable pipelines.Magma (New York, N.Y.) · 2025Review
- The X chromosome's influences on the human brain.Science advances · 2025Article
- A multivariate to multivariate approach for voxel-wise genome-wide association analysis.Statistics in medicine · 2024Article
- Unraveling multi-scale neuroimaging biomarkers and molecular foundations for schizophrenia: A combined multivariate pattern analysis and transcriptome-neuroimaging association study.CNS neuroscience & therapeutics · 2024Article
35 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
41 authors.
Funding
Abstract
Combining datasets across independent studies can boost statistical power by increasing the numbers of observations and can achieve more accurate estimates of effect sizes. This is especially important for genetic studies where a large number of observations are required to obtain sufficient power to detect and replicate genetic effects. There is a need to develop and evaluate methods for joint-analytical analyses of rich datasets collected in imaging genetics studies. The ENIGMA-DTI consortium is developing and evaluating approaches for obtaining pooled estimates of heritability through meta-and mega-genetic analytical approaches, to estimate the general additive genetic contributions to the intersubject variance in fractional anisotropy (FA) measured from diffusion tensor imaging (DTI). We used the ENIGMA-DTI data harmonization protocol for uniform processing of DTI data from multiple sites. We evaluated this protocol in five family-based cohorts providing data from a total of 2248 children and adults (ages: 9-85) collected with various imaging protocols. We used the imaging genetics analysis tool, SOLAR-Eclipse, to combine twin and family data from Dutch, Australian and Mexican-American cohorts into one large "mega-family". We showed that heritability estimates may vary from one cohort to another. We used two meta-analytical (the sample-size and standard-error weighted) approaches and a mega-genetic analysis to calculate heritability estimates across-population. We performed leave-one-out analysis of the joint estimates of heritability, removing a different cohort each time to understand the estimate variability. Overall, meta- and mega-genetic analyses of heritability produced robust estimates of heritability.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.