Sign in

Dylan Williams

@dylwil.bsky.social
159 followers 167 following 147 posts

Alzheimer's Research UK Senior Fellow, University College London. Studying the molecular epidemiology of dementia.

PostsRepliesMedia
Dylan Williams @dylwil.bsky.social · 19/08/2026
Reminder to sign up for our in-person short course on Mendelian randomisation at UCL next month, places still available. Great learning opportunity for anyone in or entering epidemiology or statistical genetics and wanting to add more strings to bow for causal inference. Sign up via link below.
020
Dylan Williams @dylwil.bsky.social · 18/08/2026
One month till our Dementia Research Showcase at @ucl.ac.uk ! Free registration here: www.eventbrite.co.uk/e/ucl200-dem... Capped off with screening of BBC doc 'Jennings vs Alzheimer's' with brilliant panel Q&A. Sign up for that here: www.eventbrite.co.uk/e/ucl200-dem...
131
Dylan Williams @dylwil.bsky.social · 22/05/2026
New preprint (and shameless rhetorical question use) in collab with @neilmdavies.bsky.social Commentary on attributable fractions that approach 100%, with lessons for epidemiologists, statistical genetics, etc. More context in thread... #episky zenodo.org/records/2034...
zenodo.org
Attributable fractions approaching 100%: irrelevant, improper, or informative?
We recently calculated attributable fractions (AFs) suggesting that up to 92.7% of Alzheimer’s disease may not occur without the contribution of risk alleles in the gene APOE. Among commentators who w...
111
Reposted by Dylan Williams
Conceicao Bettencourt @saobettencourt.bsky.social · 08/05/2026
Join us next week for the @DEMONNetworkUK #Genetics & #Omics meeting 🧬 📅 Thursday 14 May ⏰ 2:30 PM (UK time) Delighted to welcome @dylwil.bsky.social as our invited speaker: 👉 “Considering the case for #gene #therapy to address #Alzheimer’s disease” DM for details. #Dementia
021
Dylan Williams @dylwil.bsky.social · 05/05/2026
Last few places available for our new in-person short course in genetic & molecular epidemiology at University College London, 19th-21st May. Link for registering and more info below... onlinestore.ucl.ac.uk/conferences-...
onlinestore.ucl.ac.uk
D79 Molecular Epidemiology | UCL Online Store
Abstract A wide range of disciplines, including epidemiology, psychiatry, and the biomedical sciences, increasingly use genetic and molecular data to study
020
Dylan Williams @dylwil.bsky.social · 22/04/2026
Our in-person Mendelian randomisation course is back at University College London this autumn! Join us in Bloomsbury, 15th-17th Sept 2026 Tutors: @emmylooroll.bsky.social, me & @neilmdavies.bsky.social Guest lecturer: Eleanor Sanderson, U.Bristol Sign up: onlinestore.ucl.ac.uk/conferences-...
onlinestore.ucl.ac.uk
D79 Mendelian Randomization 2026 | UCL Online Store
Abstract This course covers the fundamental developments in Mendelian randomization and gives practical explanations about how to apply MR to applied resea
111
Dylan Williams @dylwil.bsky.social · 13/04/2026
A couple of months ago, I discussed our recent paper on APOE on NPR's Science Friday podcast. Available to hear here or in the usual apps for podcast streaming: www.sciencefriday.com/segments/alz...
sciencefriday.com
How One Gene Affects Alzheimer’s Risk
An epidemiology study finds variations in one gene, APOE, play a major role in determining the risk of Alzheimer’s disease.
000
Dylan Williams @dylwil.bsky.social · 05/02/2026
Clarifying the scope of gene editing for Alzheimer's disease prevention In response to "Heritable polygenic editing: the next frontier in genomic medicine?" by Visscher et al in Nature last year. zenodo.org/records/1849...
zenodo.org
Clarifying the scope of gene editing for Alzheimer's disease prevention
Visscher et al. recently published a thought-provoking analysis to summarise the prospects of heritable gene editing for reducing the incidence of various chronic diseases in populations in Nature. Am...
100
Dylan Williams @dylwil.bsky.social · 04/02/2026
Excited for this one!
010
Dylan Williams @dylwil.bsky.social · 14/01/2026
Stressing to public the overlapping roles of both environment and genes is fine...it is naive scientific responses like the one pictured (cited by the Mail) we took issue with. Taking away risk broadly will remove disease (at population level). Tho we could consider gene therapy over magic to do so
010
Dylan Williams @dylwil.bsky.social · 13/01/2026
My fave commentary on our paper in the Mail last week Interested to know what @alucassen.bsky.social uses as a definition of causation though! Here's mine: ajph.aphapublications.org/doi/full/10.... Further reading WRT the topic: zenodo.org/records/1796...
121
Reposted by Dylan Williams
shibs @drshibley.bsky.social · 10/01/2026
Well done to our colleague @dylwil.bsky.social
061
Dylan Williams @dylwil.bsky.social · 09/01/2026
Out now!! www.nature.com/articles/s44... Intro to this paper pictured below Huge thanks to collaborators @neilmdavies.bsky.social, @emmylooroll.bsky.social at @uclbrainscience.bsky.social & Sami Heikkinen and Mikko Hiltunen at @uniuef.bsky.social ... #endalz #episky #medsky
197
Dylan Williams @dylwil.bsky.social · 08/01/2026
Important review by great colleagues in @uclbrainscience.bsky.social
083
Dylan Williams @dylwil.bsky.social · 06/01/2026
I'm starting a thread on misunderstandings about the role of APOE in Alzheimer's disease / dementia, from the POV of epidemiology / statistical genetics. I will add to this sporadically over time... #endalz #episky #medsky
2195
Dylan Williams @dylwil.bsky.social · 17/12/2025
"Understanding apolipoprotein E as a predominant cause of Alzheimer’s disease" Preprint: zenodo.org/records/1796... Key takeaways below Thx to coauthors @emmylooroll.bsky.social @neilmdavies.bsky.social & N.Mukadam at DOP @ucl.ac.uk Funding @alzheimersresearchuk.org #endalz #episky #medsky
134
Dylan Williams @dylwil.bsky.social · 16/12/2025
Beware submiting to Scientific Reports... this is what the Research Square page for our article looks like. Yet to get a first decision on it, several months after peer reviews apparently came in and EIGHT after the transfer For-profit publishing racket, which doesn't even bother to publish
030
Dylan Williams @dylwil.bsky.social · 08/12/2025
@gwascatalog.bsky.social in your study browser, could you plse add a column showing case Ns next to total N for GWAS of diseases? The largest GWAS listed for diseases are now often numerous analyses of biobanks, many with small case Ns. More informative GWAS from case-control consortia get buried
240
Reposted by Dylan Williams
Save the Children UK @savechildrenuk.bsky.social · 01/12/2025
🚨 NEW: 45% of UK adults agree that scrapping the two-child limit is the most effective way to tackle child poverty. When the public get more info about the two-child limit, they are in favour of it being scrapped, which is the action the UK Govt correctly took at the Budget. More: bit.ly/48K2WKD
052
Reposted by Dylan Williams
Neil Davies @neilmdavies.bsky.social · 13/10/2025
📢 Registration is open for Causal Inference in Practice — a 3-day short course at UCL 🗓️ 18–20 February 2026 Taught by me, @kdiazordaz.bsky.social & Peter Martin. Learn to estimate causal effects from observational data. 👉 www.ucl.ac.uk/brain-scienc... #CausalInference #Epidemiology #DataScience
ucl.ac.uk
Causal Inference in Practice Short Course
This course covers the latest developments in causal inference methods and provides practical explanations for applying them to real research questions.
131
Dylan Williams @dylwil.bsky.social · 30/09/2025
Do any pre-print servers for biomedical sciences accept Perspective or Comment articles? Most seem to refuse these types of M/S. I'd like to give some draft articles indexed / searchable presence whilst they get reviewed (& likely rejected) by journals, i.e. not just posting them to Github
000
Reposted by Dylan Williams
Michel Nivard @michelnivard.bsky.social · 19/09/2025
Apply to do a PhD with me, Laura Corbin, Gareth Hawkes and George Davey Smith ( @mendelrandom.bsky.social) in Bristol on identifying rare effects on health using new and innovative methods. Amazing team, great educational environment, lovely city. Forward to your undergrads wrapping up!
gw4biomed.ac.uk
Shining a light on the un-common to identify novel health risk-factors - GW4 BioMed MRC DTP
Project Code MRCPHS26Br Nivard Project Type Dry lab Research Theme Population Health Science Project Summary Download Summary Complex traits such as body mass index and height are influenced by a mixt...
11718
Reposted by Dylan Williams
Emma Anderson @emmylooroll.bsky.social · 08/09/2025
Last chance to sign up for our MR course next week folks!
001
Dylan Williams @dylwil.bsky.social · 12/08/2025
Just came across this graphical abstract for a paper. No idea what they were going for with the whale and rainbow, but at least it is very calming
282
Dylan Williams @dylwil.bsky.social · 01/08/2025
Finally grappled w/ UKB-RAP to update a UK Biobank analysis in past week. Happy to report my sanity is (just about) still intact and I only wasted ~£8 of credit (£5 on a job left running overnight, £3 on other incompetence). Facilitated greatly by ukbrapR by @lcpilling.bsky.social, big thanks Luke!
110
Reposted by Dylan Williams
Richard Sever @richardsever.bsky.social · 30/07/2025
I have an idea… journals.plos.org/plosbiology/...
journals.plos.org
Plan U: Universal access to scientific and medical research via funder preprint mandates
Preprint servers are a low-cost mechanism for providing free access to research findings, and can also significantly accelerate research itself by making results available immediately. This Perspectiv...
1204
Dylan Williams @dylwil.bsky.social · 22/07/2025
Withdraw support for the current government of Israel
000
Reposted by Dylan Williams
The Independent @the-independent.com · 21/07/2025
BREAKING | Israel depriving Gazans of ‘human dignity’, says UK and 25 other countries in call to end war now
independent.co.uk
UK and 25 other countries accuse Israel of depriving Gazans of ‘human dignity’
David Lammy has joined other foreign ministers in condemning the Israeli government for depriving Gazans "of human dignity" as they called on the war to "end now".
65492184
Reposted by Dylan Williams
Emma Anderson @emmylooroll.bsky.social · 25/06/2025
Fabulous work by Phazha Bothongo! 2 years and several near mental breakdowns for us both in the making! 🧠 Causes and consequences of vascular dementia across the life course: Evidence from a UK Biobank phenome-wide and Mendelian randomization study 🧠 www.medrxiv.org/content/10.1...
medrxiv.org
Causes and consequences of vascular dementia across the life course: Evidence from a UK Biobank phenome-wide and Mendelian randomization study
Background Vascular dementia (VaD) is the second most common cause of dementia, yet its risk factors and biological mechanisms remain poorly understood. Objective To identify causes and consequences ...
194
Reposted by Dylan Williams
Neil Davies @neilmdavies.bsky.social · 19/06/2025
Are you looking to learn how to conduct and interpret Mendelian randomization studies? You can register now for our in-person short course at UCL. With @emmylooroll.bsky.social and @dylwil.bsky.social 16th-18th September 2025. Details here: www.ucl.ac.uk/brain-scienc...
ucl.ac.uk
Mendelian randomization short course
This course covers the fundamental developments in Mendelian randomization and gives practical explanations about how to apply MR to applied research questions.
033
Dylan Williams @dylwil.bsky.social · 11/06/2025
I love this paper ... so many insights, inc importance of ubiquitous exposures, a clear explanation for flaws of heritability (and analysis of variance more generally), and clarification of differences in "causes of cases & causes of incidence" by Rose, which I always thought obtuse and misleading
000
Reposted by Dylan Williams
Michel Nivard @michelnivard.bsky.social · 19/05/2025
This is VERY big genetics & health news, Regeneron (Pharmaceutical company with v strong genetics in medicine arm) is going to buy 23andme. investor.regeneron.com/news-release...
investor.regeneron.com
23318
Dylan Williams @dylwil.bsky.social · 28/04/2025
Our in-person Mendelian randomisation course is back at University College London this autumn. Join us in Bloomsbury, 16th-18th September 2025. Tutors: Emma Anderson, Dylan Williams, Neil Davies Guest lecturer: Eleanor Sanderson onlinestore.ucl.ac.uk/conferences-...
onlinestore.ucl.ac.uk
D79 Mendelian Randomization | UCL Online Store
Abstract This course covers the fundamental developments in Mendelian randomization and gives practical explanations about how to apply MR to applied resea
132
Dylan Williams @dylwil.bsky.social · 24/04/2025
Dislike this statement about AD by CARE programme grant invitation from @wellcomeleap.bsky.social and Lisa Mosconi. i) Commonplace misconception that "genetics = unmodifiable"... #episky #medsky
122
Dylan Williams @dylwil.bsky.social · 14/04/2025
One year later ... a major update to our manuscript showing that most Alzheimer's disease is attributable to the gene APOE. We expanded it to analyses of four studies, now with data on about 460,000 people in total..... www.medrxiv.org/content/10.1... #Alzheimers #Dementia #Epidemiology #EpiSky
medrxiv.org
The proportion of Alzheimer's disease attributable to apolipoprotein E
Objective To estimate the proportions of Alzheimer's disease (AD) and all-cause dementia burden attributable to the common risk alleles ε3 and ε4 in the APOE gene Design Genetic association analyses i...
265
Reposted by Dylan Williams
Yair Wallach @yairwallach.bsky.social · 09/04/2025
"We knew what we were doing. We knew about the indescribable suffering we were causing. We knew about the crimes we were committing, in real time. We knew, and declared for all the world to hear that this was what justice looked like, this was the face of morality."
If you're reading this, know that it really happened.
I don't know where and when you're reading this. I'm writing from my home in Jaffa, Israel, the date is 9 April 2025, the time is 13:00.
For years and years, we've said that "we need to flatten Gaza". Well, Gaza is flat now. But not because we needed to, but because we wanted to. We wanted to flatten Gaza, and we did it. We did it to the sound of roaring applause. The land filled with victorious cheers for every home collapsed and every family erased.
  We say we did it because of the 7 October 2023 massacre, to rescue the hostages taken on that day, or to make sure that a similar massacre will never happen again. I don't know which story will prevail as the accepted explanation for the destruction of Gaza in the future, but these are lies. We did it because we wanted to.
We annihilated an entire region. At this point on the timeline, I do not yet know what will be of its more than two million inhabitants. We've already killed fifty thousand at least, probably many more. As for the living, I know their present is as bad as being human gets, and their future is cast is shadow.
There is no future in Gaza. I cannot sustain life in its current condition, and any rehabilitation will take many years and enormous investments. Where things stand, we are blocking any offer to rebuild, any third party willing to take the Gaza Strip under its wing, as we continue the campaign of death and ruin.There is no past in Gaza. It used to have life, it used to have civilzation, but we annihilated any remnant of it. Universities, museums, mosques, graveyards. We didn't need to destroy them, but we wanted to. We wanted to erase any sign that life ever existed there.
The countries of the western world supported the annihilation, or stood by. The United States funded and armed it. In Israel, all state institutions did their part. The academy, the press, the courts, the culture, everyone supported and legitimized.
We all wanted to. Resistance from within was marginal and negligible, and we condemned those who resisted as traitors. The police banned any expression of resistance to the annihilation, and the public supported this silencing. The annihilation of Gaza became the national project, and we carried it out diligently and joyfully. Those who took an active part were lauded as heroes.
We knew what we were doing. We knew about the indescribable suffering we were causing. We knew about the crimes we were committing, in real time. We knew, and declared for all the world to hear that this was what justice looked like, this was the face of morality.
I don't know what I could have done differently. If there was anything I could have done to stop it, I didn't know what it was. I wanted to resist, and didn't know how. Writing this is useless, except for bearing witness to what had happened, and express my helplessness in the face of it all.
This is how it happened.
Tom Zandman, an Israeli citizen
8300126
Reposted by Dylan Williams
The Dementia League @dementialeague.bsky.social · 29/03/2025
🚨 New lifetime dementia risk & 2060 US case projections 🧠 This new 2025 study from John Hopkins updates lifetime risk estimates of dementia for the US. Data projects that 42% of adults who are alive at age 55 will develop dementia before they die, assuming current trends continue. 🧵 1/2
1146
Dylan Williams @dylwil.bsky.social · 18/03/2025
Been enjoying the focus on APOE at #AAICAPOE meeting by @alzassociation.bsky.social this week. Here's my poster showing most AD is attributable to APOE variation in four large studies
031
Dylan Williams @dylwil.bsky.social · 01/12/2024
Delighted to start as a Senior Fellow for Alzheimer's Research UK this month! As are my two chief mascots (help from Bluey here to keep them still). My research will look for ways to combat the bad effects of a protein called apoE, which is the predominant cause of Alzheimer's disease
3110