Paul RHJ Timmers
paulrhjtimmers.bsky.social
Paul RHJ Timmers
@paulrhjtimmers.bsky.social
🧬 Data Scientist at BioAge Labs
🧬 Visiting Scholar at University of Edinburgh

Longevity drug discovery using causal inference, multi-omics, and large language (of life) models

#Longevity #Aging #Lifespan #Healthspan #MachineLearning #AI
Reposted by Paul RHJ Timmers
Massive multi-ancestry GWAS resource for 1,167 clinical traits & diseases in 6 global biobanks (n=1,789,365)

👉29,139 locus-trait pairs
👉2,624 non-overlapping loci across the genome
👉associated with 6 traits each (median)
👉colocalization across traits for 72% of loci [1/3]
April 24, 2025 at 7:57 PM
Reposted by Paul RHJ Timmers
Huge meta-analysis identifies many new mutations that influence #osteoarthritis in different joints. Several of the pathways involved contain proteins that are already drug targets in other diseases -> potential new osteoarthritis treatments. #GWAS www.nature.com/articles/s41...
Translational genomics of osteoarthritis in 1,962,069 individuals | Nature
A genome-wide association study meta-analysis combined with multiomics data of osteoarthritis identifies 700 effector genes as well as biological processes with a convergent involvement of multiple effector genes; 10% of these genes express the target of approved drugs.
www.nature.com
April 10, 2025 at 7:03 PM
Reposted by Paul RHJ Timmers
I wrote about how population stratification in genetic analyses led to a decade of false findings and almost certainly continues to bias emerging results. But we are starting to have statistical tools to sniff it out. A 🧵:
How population stratification led to a decade of sensationally false genetic findings
Stratification makes environments look like genes
open.substack.com
March 28, 2025 at 9:54 PM
Reposted by Paul RHJ Timmers
We're recruiting!

➡️ (Senior) bioinformatician: join a collaborative project with @mhaniffa.bsky.social and Mo Lotfollahi, supporting the analysis of single-cell and spatial transcriptomics studies to train AI-based foundation models

Apply by 25 March

sanger.wd103.myworkdayjobs.com/en-US/Wellco...
March 18, 2025 at 9:49 AM
Reposted by Paul RHJ Timmers
Labeling your axes and then explaining them slowly is perhaps the biggest bang for the buck you can get for making your slides more understandable.
March 12, 2025 at 4:38 PM
Family-based GWAS (FGWAS) is useful to circumvent confounding affecting direct genetic effect estimates. In a recent paper, UCLA Anderson School of Management researchers do the thorough theoretical work to improve the effective sample size of and robustness of FGWAS. doi.org/10.1038/s415...
Family-based genome-wide association study designs for increased power and robustness - Nature Genetics
This study develops family-based genome-wide association study methods that maximize power in homogeneous samples through inclusion of singletons and in diverse samples by using all available parental...
doi.org
March 13, 2025 at 10:27 AM
A new local genetic correlation method called HDL-L outperforms previous tools with more consistent heritability estimates and more efficient local genetic correlation estimates: nature.com/articles/s41...
An enhanced framework for local genetic correlation analysis - Nature Genetics
HDL-L is an extension of the high-definition likelihood method that enables local heritability and genetic correlation analysis with higher accuracy and computational efficiency than LAVA.
nature.com
March 11, 2025 at 10:40 AM
One of the coolest studies I've seen, explained by @mfgrp.bsky.social in a captivating series of tweets: the body preemptively creates antibodies against commensal skin bacteria, and this system can be harnessed to create long-lasting vaccines, potentially administered just once via a topical cream!
Today we report that an engineered skin bacterium, swabbed gently on the head of a mouse, can unleash a potent antibody response against a pathogen. Could lead to topical vaccines that are applied in a cream. @djenetbousbaine.bsky.social led the charge... @natureportfolio.bsky.social 1/55
January 10, 2025 at 11:48 PM
Reposted by Paul RHJ Timmers
New GWAS association method, more powerful, but not more expensive than existing methods

www.nature.com/articles/s41...
A scalable variational inference approach for increased mixed-model association power - Nature Genetics
Quickdraws is a mixed-model association tool with a noninfinitesimal prior for analyzing binary and quantitative traits, using a scalable variational inference that allows analysis of biobank-scale co...
www.nature.com
January 9, 2025 at 7:33 PM
Reposted by Paul RHJ Timmers
#Ketone bodies are not just about energy. Study in @cellpress.bsky.social shows metabolites are powerful signaling molecules that help clean up damaged proteins. New biology for aging and neurodegenerative disease @geriscidoc.bsky.social @sidmadhavan.bsky.social www.buckinstitute.org/news/ketone-...
Ketone bodies: more than energy, they are powerful signaling metabolites that clean up damaged proteins
Ketone esters help clear misfolded proteins in mouse models of aging and Alzheimer’s disease   Ketone bodies, produced by the body to provide fuel during fasting, have roles in regulating cellular pro...
www.buckinstitute.org
December 2, 2024 at 7:10 PM
Moving from X to Bluesky was really easy with Sky Follower Bridge! Can recommend if you want to find your connections from X on Bluesky. www.sky-follower-bridge.dev
Sky Follower Bridge
Instantly find and follow the same users from your 𝕏 followers on Bluesky
www.sky-follower-bridge.dev
November 26, 2024 at 1:58 PM
Excited to see Biobank Japan has now also performed a survival GWAS! 💀 They are the first non-European Biobank to do so, as far as I'm aware. https://doi.org/10.1038/s42003-023-04491-0
Genome-wide association study reveals BET1L associated wi...
A genome-wide association study in the BioBank Japan coho...
doi.org
January 9, 2025 at 11:52 AM
Now published in @NatureAging! https://doi.org/10.1038/s43587-021-00159-8

Studying the #genetic overlap between aging traits, we identify promising protein #targets 💊

Read the full-text: https://rdcu.be/cFno2

Big thanks to @EdinUni_IGC, @NskUniversity #BiobankJapan @Finngen_FI &...
Mendelian randomization of genetically independent aging ...
Many aging-related phenotypes share a common genetic comp...
doi.org
January 9, 2025 at 11:52 AM
Delighted to announce our latest work on human #ageing #genes is now published in @NatureComms! https://dx.doi.org/10.1038/s41467-020-17312-3 Huge thanks to @Peterkjoshi & @Joris_Deelen for their help! We combined ageing-related GWAS and found a surprising role for haem metabolism...
Multivariate genomic scan implicates novel loci and haem ...
Ageing phenotypes are of great interest but are difficult...
dx.doi.org
January 9, 2025 at 11:52 AM
Humbled to receive an award for the best flash talk at #EMGM2020! Thank you, @Peterkjoshi, and the rest of the Wilson Group for helping me practice! And thank you to the @emgm2020 organising committee for putting together such a successful conference!
January 9, 2025 at 11:52 AM
Thank you to all the #EMGM2020 attendees who listened to my flash talk and asked some great questions! If you want to learn more, feel free to look at my poster...
January 9, 2025 at 11:52 AM
Excited to give a flash talk about new human #ageing genes and pathways at #EMGM2020. Join me (virtually) tomorrow at 13:00 CEST in Session 1. Poster...
January 9, 2025 at 11:52 AM
Impressive predictive power of polygenic risk score for coronary artery disease (and others). Top 8% of individuals three times as likely to have the disease. #Genomics #PrecisionMedicine #CAD https://www.nature.com/articles/s41588-018-0183-z
January 9, 2025 at 11:52 AM