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Posts by George Davey Smith

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Erroneous epidemiological findings on vitamins: coming full circle after two decades of Mendelian randomization? Our editorial responsibility for the International Journal of Epidemiology (IJE) started at the dawn of the current millennium, and we marked the occasion

2/2 which are often high ranking ones - have published papers they must know are complete nonsense, but neither the journals, nor the authors or methods promoters are actively helping in stemming the tide of this rubbish. For more on this see academic.oup.com/ije/article/...

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Retraction of: Association between Vitamin D and mortality risk in gout patients This is a retraction of: Xinyu Fang, Jie Zhang, Zixing Zhang, Dongqing Ye. Association between Vitamin D and mortality risk in gout patients, Journal of Pu

Yet another spurious non-linear Mendelian randomization paper has been retracted by a journal academic.oup.com/jpubhealth/a... Kudos to the editors of the Journal of Public Health for following through and retracting spurious publications. What is shocking is that many other journals /cont

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G-EE

A very much needed (and brilliant) reflection for Mendelian randomization

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Have seen thousands of Velvets covers and also saw the Velvet Underground be their own tribute band on two unforgettable nights at Edinburgh playhouse June 1993, but think Waldo’s Gift at Ritual Union 2026 Bristol got closer to the VU spirit than any others I’ve seen

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A Guide to The Genotype-Phenotype Map – IEUREKA!

Blog by Andrew Elmore on the genotype-phenotype map reaource ieureka.blogs.bristol.ac.uk/2026/03/11/g...

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I get confused and have to remind myself that despite my email address up till 2009 being zetkin@BLAH (depending where I was) this is Mel!

1 month ago 0 1 1 0
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Gene-environment equivalence: The fundamental principle of Mendelian randomization In this Perspective, George Davey Smith and colleagues outline how and why gene-environment equivalence, the fundamental principle of Mendelian Randomization (MR), must be properly applied and critica...

the principle for understanding genetic effects being that of gene-environment equivalence journals.plos.org/plosmedicine...

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A comprehensive new tool for exploring how genetic variation influences outcomes, of relevance to everything driven by phenotypes, which encapsulates many domains, from how drugs work to how natural selection works ... / cont

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Gene-environment equivalence: The fundamental principle of Mendelian randomization In this Perspective, George Davey Smith and colleagues outline how and why gene-environment equivalence, the fundamental principle of Mendelian Randomization (MR), must be properly applied and critica...

Failure to understand that the fundamental principle of Mendelian randomization (MR) is of gene-environment equivalence contributes to the flood of nonsense MR papers that are appearing; Shah Ebrahim, Gib Hemani and I explain why in this short commentary. journals.plos.org/plosmedicine...

1 month ago 40 29 1 1
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Postdoc in Epidemiology - Vacancy at Aarhus University Vacancy at Department of Public Health - Department of Epidemiology, Aarhus University

🤓There's an open 2 yr postdoc position in my group
🏘️ On interactions between area-level socioeconomic position and environmental factors in weight trajectories in children
📈 Using multilevel models; applying the target trial framework
📆 Apply before April 7th!
international.au.dk/about/profil...

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Embarrasing correcton required for this - it was intended to say "gene-environment equivalence" not interaction is the fundamental principle of MR ..

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Gene-environment equivalence: The fundamental principle of Mendelian randomization In this Perspective, George Davey Smith and colleagues outline how and why gene-environment equivalence, the fundamental principle of Mendelian Randomization (MR), must be properly applied and critica...

Failure to understand that the fundamental principle of Mendelian randomization (MR) is of gene-environment equivalence contributes to the flood of nonsense MR papers that are appearing; Shah Ebrahim, Gib Hemani and I explain why in this short commentary. journals.plos.org/plosmedicine...

1 month ago 40 29 1 1
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Failure to understand that the fundamental principle of Mendelian randomization (MR) is that of gene-environment interaction contributes to the flood of nonsense MR papers that are appearing; Shah Ebrahim, Gib Hemani and I explain why in this short commentary. Responses welcome!

1 month ago 13 3 0 1
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Habermas and Strategic Versus Communicative Action In this fourth in a sequence of blogs on the theories of Jurgen Habermas I move on to consider his use of the concepts of lifeworld and system. These receive their fullest expression in his magiste…

www.grahamscambler.com/habermas-and...

1 month ago 3 2 0 0
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FORM | Wellcome Leap: Unconventional Projects. Funded at Scale. NEW $50M Program Foundations of a Resilient Microbiome APPLY NOW We are pleased to announce the selected performers.Kiran Raosaheb Patil, University of CambridgeLaurel...

Predictably enough, one of the people funded by Wellcome LEAP's FORM project is James B. Adams brainfoundation.org/brain-invest..., whose work featured in our recent review www.cell.com/neuron/fullt..., and not in a good way.
see wellcomeleap.org/form/

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We're excited to be recruiting an NIH funded postdoc to work in the Coop lab at UC Davis. We're specifically interested in candidates who are want to work at the intersection of human genetics, GWAS, and population genetics modeling. Please RT

6 months ago 163 210 1 5
Postdoc in Genetic Epidemiology/Statistical Genetics Postdoc in Genetic Epidemiology/Statistical Genetics

Great opportunity for a post-doc position with the amazing Luisia Zuccolo @humantechnopole.bsky.social Details here careers.humantechnopole.it/job/Postdoc-...

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Can anyone now seriously deny that we’re living within the society of the spectacle? As foresighted in its way as Marx and Engels’ “all that is solid melts into air”

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I never had you down as a situationist Darren ;-)

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How the processes of recuperation vitiate apparent methodological advances in medical research, from meta-analysis to Mendelian randomization

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Brilliant inaugural lecture by Professor Evie Stergiakouli on her career so far, @uob-ieu.bsky.social so lucky to have secured her talents right from its inception. Thx Evie!

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“There is nothing that utterly destroys all chance for scientific investigation or any continuous work, like having a Distinguished Guest on your hands” H S Jennings, c1925

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Perhaps counterintuitively higher prepubertal BMI is strongly protective against breast cancer in later life

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Lifecourse genome-wide association study meta-analysis refines the critical life stages for adiposity’s influence on breast cancer risk Improving knowledge of adiposity’s genetic architecture across the lifecourse refines insights into its role in breast cancer.

Grace Power, @mendelrandom.bsky.social and others (not me!) takes a plausible causal FX of BMI on breast cancer, and narrow down *when* that effect plays out. They find the effects of later BMI on breast cancer are steeply attenuated when conditioned on early BMI. www.science.org/doi/10.1126/...

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Why evidence matters in health research Professor George Davey Smith explains why he encourages scientists to look for ways they might be wrong.

Newspaper headlines often share compelling quick fixes for health issues - but often the realities of what causes health conditions is more complex. In this blog post @mendelrandom.bsky.social explains why he encourages scientists to look for ways they might be wrong. www.ukri.org/blog/why-evi...

3 months ago 5 3 0 0

Even Confuseus has caught up on colliderscopes academic.oup.com/ije/article/... 🤣 @f2harrell.bsky.social @michelnivard.bsky.social

3 months ago 15 0 2 0
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Why ‘coffee causes cancer’ headlines get it wrong Coffee causes cancer. Red wine protects your heart. Chocolate cuts diabetes risk. These headlines catch the eye, but are they true?

Happy New Year! To start the year, do read this @ukri.org interview with our director @mendelrandom.bsky.social, recipient of the prestigious MRC Millennium Medal. medium.com/@UKRI/why-co...

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I know a bit about the past of MR, something about the present, and look forward to discussing whether MR has a future, and if so, how that should look

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