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Poppy Zenzi Grimes

@pzg.bsky.social
404 followers 83 following 27 posts

Postdoctoral Research Officer @ QIMR Berghofer. Statistical genetics🧬trajectories📈networks🕸️dynamic systems🌀

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Poppy Zenzi Grimes @pzg.bsky.social · 27/11/2025
Almost there... It's a bad day to be a supplementary table. 360 pages 😮‍💨 #PhAlmostDone
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Jeff Spence @jeffspence.github.io · 19/11/2025
@hakha.bsky.social and I wrote a Research Briefing (with a lay summary + "behind the scenes") of our paper on how genes are prioritized by GWAS and rare variant burden tests. 🧬🧪 www.nature.com/articles/d41...
nature.com
How do genetic association studies rank genes?
Genome-wide association studies and rare-variant burden tests reveal complementary aspects of trait biology.
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Shai Carmi @shaicarmi.bsky.social · 11/09/2025
Brilliant paper by Visscher et al. Populations differ in traits/disease burden. Are these differences due to genetics? Comparing single variants or polygenic scores between populations is biased due to environmental confounders correlated with the variants. 1/3 www.medrxiv.org/content/10.1...
medrxiv.org
Direct effect of genetic ancestry on complex traits in a Mexican population
Human populations differ in disease prevalences and in average values of phenotypes, but the extent to which differences are caused by genetic or environmental factors is unknown for most complex trai...
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Sasha Gusev @sashagusevposts.bsky.social · 02/08/2025
A few thoughts on Herasight, the new embryo selection company. First, their whitepaper (drive.google.com/file/d/1EpFi...) implies that competitors like Nucleus have been marketing and selling grossly erroneous risk estimates. This is shocking if true! 🧵
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Joni Coleman @jonicoleman.bsky.social · 27/06/2025
What's going on in psychiatric genetics? The @pgcgenetics.bsky.social have now published our latest progress review in @thelancetpsych.bsky.social, highlighting discovery, and laying out a map for moving forwards! www.thelancet.com/journals/lan...
thelancet.com
The Psychiatric Genomics Consortium: discoveries and directions
Research by the Psychiatric Genomics Consortium (PGC) has advanced the discovery of common and rare genetic variations that contribute to the susceptibility to many psychiatric disorders and neurodeve...
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Catherine E. de Vries @catherinedevries.bsky.social · 04/06/2025
You don’t need more ideas. You need a better question. A thread on clarity, chaos, & what a Nobel Prize winner, a mosquito net & a PhD meltdown taught me about writing (+ thinking) better. 🪨 Here’s my new Respect the Marble post: catherineeunicedevries.substack.com/p/you-dont-n... 🧵
catherineeunicedevries.substack.com
You Don’t Need More Ideas. You Need a Better Question
What Michelangelo, a Nobel Laureate, and a PhD Meltdown Taught Me about Research Questions
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Poppy Zenzi Grimes @pzg.bsky.social · 29/04/2025
Excited to share that the second paper from my PhD has just been published in @NatMentHealth!🧠🧵 We modelled depression symptom networks in >35k teenagers to derive their 'network temperature' and found evidence symptom stabilisation across adolescence... www.nature.com/articles/s44...
nature.com
Network temperature as a metric of stability in depression symptoms across adolescence - Nature Mental Health
This study explores the dynamics of adolescent depression through the lens of network temperature, a novel concept in psychological symptom networks. Researchers observed a decrease in network tempera...
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Eiko Fried @eikofried.bsky.social · 13/03/2025
Dissertation by Dr Rachel Los not only includes acknowledgements, but also .. anti-acknowledgements. delta.tudelft.nl/en/article/a...
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Poppy Zenzi Grimes @pzg.bsky.social · 14/02/2025
aeon.co/essays/alan-...
aeon.co
Alan Watts – the Western Buddhist who healed my mind | Aeon Essays
How I found my way out of depression, thanks to the writings of the English priest who brought Buddhism to the West
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Andrew Grotzinger @andrewgrotzinger.bsky.social · 06/12/2024
You've heard of DNA, but what about GNA? Very excited about this preprint with @jgthorp.bsky.social and others that introduces Genomic Network Analysis (GNA), an open-source multivariate tool for performing network analysis using GWAS summary statistics as input. 1/2 www.medrxiv.org/content/10.1...
medrxiv.org
Genomic network analysis characterizes genetic architecture and identifies trait-specific biology
Pervasive genetic overlap across human complex traits necessitates developing multivariate methods that can parse pleiotropic and trait-specific genetic signals. Here, we introduce Genomic Network Ana...
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Christian Webb, PhD @christianwebb.bsky.social · 27/11/2024
New large study (n ~ 6 million) in @JAMApsych tracking mental disorder trends in Denmark showing increases in mood disorders in recent birth cohorts tinyurl.com/c5nyfd8k
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Poppy Zenzi Grimes @pzg.bsky.social · 04/11/2024
A fantastic week at #WCPG2024 in Singapore! Grateful to work and travel with many wonderful people 🔬🦀🇸🇬
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Andrew McIntosh @mcintosh2001.bsky.social · 23/10/2024
The terrific @pgcgenetics.bsky.social Major Depressive Disorder Working Group in Singapore
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Poppy Zenzi Grimes @pzg.bsky.social · 17/10/2024
Hello from Singapore #wcpg2024!🌏 I am presenting an update on the current results of the *Adolescent-Onset Depression GWAS* on Friday at 3pm in the symposium on Genomics and Life Course Data. Come and watch!
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Poppy Zenzi Grimes @pzg.bsky.social · 09/10/2024
I’m presenting three different projects at these upcoming conferences over the next month! Looking forward to meeting fellow MH researchers 🌏 · World Congress of Psychiatric Genetics 🇸🇬 · International Congress of Neuropsychiatry 🇦🇺 · Society for Mental Health Research Conference 🇦🇺
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Poppy Zenzi Grimes @pzg.bsky.social · 02/08/2024
🚨🌡️New pre-print on PsyArXiv! We conceptualise and investigate *network temperature* as a measure of longitudinal stability in depression symptom networks across adolescence. [Replication in 3 cohorts with >35k adolescents!] osf.io/preprints/ps...
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PsyArXivBot @psyarxivbot.bsky.social · 01/08/2024
Network Temperature as a Metric of Stability in Depression Symptoms Across Adolescence: osf.io/9zmge
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Eiko Fried @eikofried.bsky.social · 11/07/2024
This is the recording of my June 2024 keynote at the DPK congress, entitled "Embracing complexity: studying mental health problems as systems, not syndromes". They made a nice recording & allowed me to share it. Thanks a ton, DPK organizers 🖤. 🧪 #stats #psychscisky www.youtube.com/watch?v=B1cR...
youtube.com
Studying mental health problems as systems, not syndromes
This is a keynote I gave at the DPK congress in Berlin 2024, a large conference primarily attended by psychotherapists. I want to thank them—and especially T...
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Poppy Zenzi Grimes @pzg.bsky.social · 22/05/2024
Missing data, longitudinal binary symptoms for multi-group Ising model estimation. HELP!!!! Impute? If so, how to pool estimates? Don't think it's right to avg. over networks? Use maximum likelihood estimator instead? 😵‍💫
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Poppy Zenzi Grimes @pzg.bsky.social · 17/05/2024
I am delighted to announce my first first-author paper has just been published in @JAMAPsych! 🥳🧬📈 ‘Genetic Architectures of Adolescent Depression Trajectories in 2 Longitudinal Population Cohorts’. Link to paper: ja.ma/4bkGsPj and a 🧵 of our key findings below…
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Abdel Abdellaoui @dr-appie.bsky.social · 10/03/2024
Great job students and faculty of the International Statistical Genetics Workshop 2024 in Boulder, what an amazing week it was, as always 🧬❤️🍻 Next year it's GWAS and sequence data analysis again, see you then: colorado.edu/ibg/workshop
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