Sean

Now available in the PGS Catalog 🔗: www.pgscatalog.org/publication/...! Thanks to authors like Sean for submitting the data directly, find out how to submit your data at pgscatalog.org/submit

New genetic tests could predict future risk for people with deadly heart condition Doctors could soon begin offering patients and families personalised advice on their risk of developing a potentially deadly heart muscle condition, thanks to research from the MRC Laboratory of Medic...

New LMS research shows how a risk score based on an individual’s genetic profile could help doctors predict the likelihood of them developing a deadly heart condition in the future 🧬🫀

See the attached 🧵 for some of our main takeaways

New genetic tests could predict future risk for deadly heart conditions | Imperial News | Imperial College London Doctors could soon begin offering patients and families personalised advice on their risk of developing a potentially deadly heart muscle condition.

Doctors could soon begin offering patients and families personalised advice on their risk of developing hypertrophic cardiomyopathy, thanks to a new study on genomic risk scores that estimates risk based on a person's DNA 🧬🫀

www.imperial.ac.uk/news/261253/...

And finally, although many people with HCM lead relatively normal lives, some unfortunately develop CV complications. In >1K people with HCM in UK Biobank and 100K, PGS acts as a novel biomarker stratifying survival and MACE after diagnosis. Future work needed to fit this into clinical models. n/n

An area of clinical importance is risk assessment in patient’s families. Most relatives who are pheno-ve remain under long-term surveillance. PGS can stratify future HCM risk, HCM severity, and adverse CV outcomes among relatives, providing yet another opportunity for personalised care. 4/n

Pathogenic variant carriers in HCM genes don’t all go on to develop HCM (incompletely penetrant). In >1.2K carriers from UKB + 100K, PGS acts as a key modifier of rare variant effects = potential to guide personalised surveillance/early intervention strategies in secondary finding settings. 3/n

We show in the UK Biobank that PGS associates with HCM, with 15-fold increased risk of HCM for those with scores in top 1% vs. mean. Almost half of all people with HCM have a score >1SD from the mean, ~20% >2sd. 2/n

🧵 Polygenic scores in hypertrophic cardiomyopathy
📎 Paper: www.nature.com/articles/s41... in @naturegenet.bsky.social

We created PGS using sumstats from our linked GWAS study www.nature.com/articles/s41..., evaluating it across a range of clinical settings in several cohorts. 1/n

🚨Our double header on genetics of hypertrophic #cardiomyopathy out today in @naturegenet.bsky.social 🧬

📍GWAS www.nature.com/articles/s41...
📍polygenic scores www.nature.com/articles/s41...

A consortia effort by @jamesware.bsky.social Hugh Watkins @conniebezzina.bsky.social Rafik Tadros & Anuj Goel

Rising Stars: Dr Sean Zheng features in CardioPulse mini-series Dr Sean Zheng, a Chain Florey Clinical Lecturer at the MRC Laboratory of Medical Sciences (LMS), features in the latest edition of CarioPulse – the European Heart Journal’s mini-series which shines a ...

Congratulations Dr Sean Zheng on being featured as a rising star in CardioPulse – a European Heart Journal mini-series that shines a spotlight on early career researchers in cardiology!🎊

Genome-wide association analyses in Nature Genetics provide insights into the molecular etiology of dilated cardiomyopathy, which may inform the design of genetic testing strategies and may facilitate the development of targeted therapeutics. https://go.nature.com/4fIkNmh

Genome-wide association analyses in Nature Genetics provide insights into the molecular etiology of dilated cardiomyopathy, which may inform the design of genetic testing strategies and may facilitate the development of targeted therapeutics. https://go.nature.com/4fIkNmh 🧪

Genetic and phenotypic architecture of human myocardial trabeculation - Nature Cardiovascular Research The inner surface of the heart has a meshwork of muscles called trabeculae. McGurk et al. report the genetic regulation of these complex structures across common and rare variants, revealing pathways ...

New paper out in @natureportfolio.bsky.social by @kathrynmcgurk.bsky.social on the genetic architecture of myocardial trabeculae. @mrc-lms.bsky.social www.nature.com/articles/s44...

And finally, using snRNA-seq of 52 end-stage heart failure DCM samples, we identify the causal cell types, and explore changes in expression of GWAS effector genes in disease, and identify important intercellular interactions for several of the genes (COL4A1, BMPR1A, etc.)

5/5

Having highlighted the importance of SNPs in DCM risk in this study, we next created a polygenic risk score and show that it predicts DCM in the population, and in 1,546 carriers of rare DCM-causing variants.

4/5

Highlighting overlap of common and rare variant causes of DCM across the spectrum of allele frequencies, 7 genes known to cause DCM were identified. Using UKBB and 100K Genomes Project we also discover 3 rare novel genetic causes of DCM (MAP3K7, SSPN, and NEDD4L).
3/5

We incorporate 8 in silico tools to identify effector genes throughout the genome, and in the process highlight key biological processes involved in DCM risk - including cellular adhesion, sarcomeric function, cell signalling, and ER stress.

2/5

We analyse genetic data from >14K people with DCM and >1.2M controls, boosting power with multi-trait analysis incorporating CMR traits from 36K people. We find 80 risk loci (many novel) associated with DCM.

1/5

🧬 Our dilated #cardiomyopathy GWAS out today!

📍https://www.nature.com/articles/s41588-024-01952-y

All made possible with friends and collaborators from HERMES Consortium @alberthenry.bsky.social @tomlumbers.bsky.social @jamesware.bsky.social @mrc-lms.bsky.social @imperialnhli.bsky.social #BHF

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