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Andrew Glazer

@amglazer.bsky.social
229 followers 150 following 29 posts

Assistant Professor at Vanderbilt Univ. Medical Center. Arrhythmia genetics, ion channels, high-throughput methods. andrewglazerlab.com.

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Reposted by Andrew Glazer
Jessica Mella @jmella.bsky.social · 21/09/2026
First Bluesky post for my new preprint! Super fun project with guidance from @abbybuch.bsky.social and @willowcoyote.bsky.social. We applied saturation mutagenesis to the Lamin A protein in #hiPSC derived cardiac cells to uncover cell type-specific mutation effects 1/ www.biorxiv.org/content/10.6...
biorxiv.org
Cardiomyocyte vulnerability to lamin polymer disruption revealed by saturation mutagenesis
Hundreds of mutations to the broadly expressed LMNA gene cause disease primarily within cardiac, muscular, and adipose tissues (1). Tissue-specific pathogenesis arises when mutant protein dysfunction ...
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Reposted by Andrew Glazer
Edoardo Gianni @edogia.bsky.social · 13/02/2026
How could a simple self-replicating system emerge at the origins of life? RNA polymerase ribozymes can replicate RNA, but existing ones are so large that their self-replication seems impossible. Could they be smaller? Excited to share our latest work in @science.org on a new small polymerase. 1/n
science.org
A small polymerase ribozyme that can synthesize itself and its complementary strand
The emergence of a chemical system capable of self-replication and evolution is a critical event in the origin of life. RNA polymerase ribozymes can replicate RNA, but their large size and structural ...
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Andrew Glazer @amglazer.bsky.social · 22/01/2026
Vanderbilt's division of Genetic Medicine has an open faculty position: apply.interfolio.com/177945
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Reposted by Andrew Glazer
Chai Ann Ng @chaiannng.bsky.social · 21/01/2026
Additionally, the functional evidence for 275 SCN5A variants from our recent SCN5A automated patch-clamp study is now accessible in ClinVar.
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Andrew Glazer @amglazer.bsky.social · 21/01/2026
A nice editorial about our recent SCN5A automated patch clamp paper. @chaiannng.bsky.social academic.oup.com/eurheartj/ad...
academic.oup.com
Reducing the variant of uncertain significance burden in inherited cardiac disorders: from variant to function to action?
This editorial refers to ‘Automated patch clamp data improve variant classification and penetrance stratification for SCN5A–Brugada syndrome’, by M.J. O’Ne
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Andrew Glazer @amglazer.bsky.social · 09/01/2026
Whoa--Gemini Nano Banana is amazing at turning a "napkin sketch" of a molecular pathway into a nice-looking figure! 🤯
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Andrew Glazer @amglazer.bsky.social · 17/12/2025
Excited to share our preprint: “Mapping the Functional Landscape of KCNQ1 to Define Ion Channel Mechanisms and Arrhythmia Risk!” We performed ~50,000 experimental measurements of KCNQ1 variants. www.medrxiv.org/content/10.64898/2025.12.15.25341924v1
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Shawn Fayer @shawnfayer.bsky.social · 22/11/2025
The effects of genetic variants primarily occur in differentiated cells meaning we need to access these cell types to measure variant effects for most disease genes. We developed saturation genome editing in stem cells (iPSC-SGE) to enable phenotyping in diverse genetic and cell contexts at scale!
medrxiv.org
Editing stem cell genomes at scale to measure variant effects in diverse cell and genetic contexts
Multiplexed assays of variant effect (MAVEs) systematically measure variant function but have been limited to cancer cell lines rather than disease-relevant cell types. We developed saturation genome ...
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Reposted by Andrew Glazer
Jonathan Mosley @jdmosley-moses.bsky.social · 21/11/2025
The Mosley lab is seeking creative postdoctoral fellows interested in applying innovative population-based genomic and informatics approaches to translate genetics into clinical settings. labs.utsouthwestern.edu/mosley-lab/p... www.utsouthwestern.edu/research/pos... 🧪🧬🖥️
labs.utsouthwestern.edu
People | Mosley Lab | UT Southwestern, Dallas, Texas
Meet the PI and team members of the Mosley Lab.
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Reposted by Andrew Glazer
Chai Ann Ng @chaiannng.bsky.social · 21/11/2025
Thank you @amglazer.bsky.social for the exciting opportunity to collaborate! Since then, we've provided functional evidence supporting the VUS reclassification in children with abnormal sodium #ionchannel function at Sydney Children’s Hospital.
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Andrew Glazer @amglazer.bsky.social · 20/11/2025
This was a collaborative project led by Matthew O'Neill and Joanne Ma and co-supervised by me, Jamie Vandenberg, and @chaiannng.bsky.social. Link: academic.oup.com/eurheartj/ad... [4/4]
academic.oup.com
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Andrew Glazer @amglazer.bsky.social · 20/11/2025
Variants with severe loss-of-function had ~25% penetrance & 501x increased odds of BrS. Normal-function variants had lower risk. This work stratifies SCN5A variants into low-risk vs high-risk categories, aiding diagnosis & management for patients & families. [3/4]
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Andrew Glazer @amglazer.bsky.social · 20/11/2025
Using our calibrated automated patch clamp assay, we identified 146 abnormal function variants and reclassified 110 VUS. [2/4]
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Andrew Glazer @amglazer.bsky.social · 20/11/2025
📝 Excited to share our latest work, now out at European Heart Journal! We studied 252 SCN5A variants previously found in patients with Brugada Syndrome, an inherited arrhythmia disorder linked to sudden cardiac death. [1/4]
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Andrew Glazer @amglazer.bsky.social · 10/11/2025
Congrats to Matthew O'Neill for winning an American Heart Association Early Career award for our work on functional studies of SCN5A variants from patients with Brugada syndrome!
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Reposted by Andrew Glazer
euanashley @euanashley.bsky.social · 01/11/2025
So excited about this new work from our CardioVar consortium out this week in Science led by the amazing Daniel Tabet and @fritzroth.bsky.social. www.science.org/doi/10.1126/
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Andrew Glazer @amglazer.bsky.social · 23/09/2025
I gave my daughter C, A, and T cards to spell "cat." She grabbed a G and added it to the mix. Is she hinting at a future career in genetics? 🧬 🐾
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Reposted by Andrew Glazer
Atlas of Variant Effects Alliance @varianteffect.bsky.social · 19/09/2025
🧬 Out this month in Nature Reviews Cardiology: A powerful look at how multiplexed assays of variant effects (MAVEs) are reshaping our understanding of cardiovascular disease genetics. Contributors include members of the AVE Alliance. 📑 www.nature.com/articles/s41... #Cardiology #FunctionalGenomics
nature.com
Creating an atlas of variant effects to resolve variants of uncertain significance and guide cardiovascular medicine - Nature Reviews Cardiology
In this Review, Roden and co-workers describe how multiplexed assays of variant effects can be used for high-throughput functional assessment of nearly all coding variants in a target sequence to impr...
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Reposted by Andrew Glazer
Atlas of Variant Effects Alliance @varianteffect.bsky.social · 15/09/2025
The 9th Annual Mutational Scanning Symposium will be held in Melbourne, Australia March 25-27, 2026 🌟 #VariantEffect26 www.mss2026.org Registration will open soon!!!!
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Reposted by Andrew Glazer
The American Journal of Human Genetics @ajhgnews.bsky.social · 15/09/2025
📣New today! 📄Landscapes of missense variant impact for human superoxide dismutase 1 🧑‍🤝‍🧑 @axakova.bsky.social @fritzroth.bsky.social & co
cell.com
Landscapes of missense variant impact for human superoxide dismutase 1
SOD1 variants cause the motor neuron disease amyotrophic lateral sclerosis. Axakova et al. functionally assay ∼86% of all possible SOD1 missense variants, producing a variant-effect map resource that ...
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Reposted by Andrew Glazer
Nature Reviews Genetics @natrevgenet.nature.com · 10/09/2025
And follow it up with @natrevcardiol.nature.com's review on the application of MAVEs in cardiology by @amglazer.bsky.social et al. Creating an atlas of variant effects to resolve variants of uncertain significance and guide cardiovascular medicine go.nature.com/3JOJYc3 rdcu.be/eFmoe
go.nature.com
Creating an atlas of variant effects to resolve variants of uncertain significance and guide cardiovascular medicine - Nature Reviews Cardiology
In this Review, Roden and co-workers describe how multiplexed assays of variant effects can be used for high-throughput functional assessment of nearly all coding variants in a target sequence to impr...
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Andrew Glazer @amglazer.bsky.social · 03/09/2025
Link: www.nature.com/articles/s41... Thanks to CardioVar coauthors @fritzroth.bsky.social Dan Roden, Dan Tabet, Vicki Parikh, Euan Ashley, Calum MacRae, and more!
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Andrew Glazer @amglazer.bsky.social · 03/09/2025
📝Check out our review “Creating an atlas of variant effects to resolve variants of uncertain significance and guide cardiovascular medicine”, out in @natrevcardiol.nature.com. We review the use of Multiplexed Assays of Variant Effect and variant effect predictors in cardiovascular disease.
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Roddy Walsh 🇪🇺 🇺🇦 @roddywalsh.bsky.social · 29/08/2025
Our study on HCM intermediate effect variants (IEVs) is out today in Circulation, led by Juan Pablo Ochoa, Soledad García Hernandez and Luis De la Higuera Romero. IEVs are low frequency/penetrance variants with moderate effects sizes (OR:5-10). www.ahajournals.org/doi/10.1161/... #ESCcongress 🧬🫀
ahajournals.org
Redefining the Genetic Architecture of Hypertrophic Cardiomyopathy: Role of Intermediate Effect Variants | Circulation
Background: Hypertrophic cardiomyopathy (HCM) is a genetically heterogeneous disorder primarily linked to rare variants in sarcomere genes, though recently certain non-sarcomeric genes have emerged as...
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Andrew Glazer @amglazer.bsky.social · 16/07/2025
Having some summer fun...Glazer Lab Olympics! Our lab competed in 6 lab-themed events.
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Reposted by Andrew Glazer
Timothy Syndrome Alliance (TSA) @cacna1c.bsky.social · 18/06/2025
More smiles to share with you; this time, Andrew Glazer and Richard Dolder from the Glazer Lab at Vanderbilt University Medical Center. New blog: timothysyndrome.org/research/det... #CACNA1C #RareDisease #Research @amglazer.bsky.social @vanderbilt.edu
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Andrew Glazer @amglazer.bsky.social · 25/05/2025
My wife and I had a lovely time in Spain, including the excellent #VariantEffect25 meeting!
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Reposted by Andrew Glazer
Doug Fowler @dougfowler.bsky.social · 15/05/2025
Our "Atlas of Variant Effects 2030 Roadmap" is live: zenodo.org/records/1542... 1/n
zenodo.org
Atlas of Variant Effects 2030 Roadmap: resolving human variants of uncertain significance
At the Clinical Atlas of Variant Effects meeting (CLAVE meeting, July 2024, Pittsburgh USA), we developed recommendations for a draft atlas that can be realized by 2030, with a focus on empowering gen...
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Reposted by Andrew Glazer
Jonathan Mosley @jdmosley-moses.bsky.social · 26/04/2025
Congratulations, John Shelley. news.vumc.org/2025/04/25/p... #VUMCMSTP #VUMCDBMI #PopGen #Bioinformatics #Genomics 🧬🖥️🧪
news.vumc.org
Polygenic score for height could improve diagnosis for children with short stature: study
About 30% of children with short stature do not have a definitive diagnosis, leading to extra testing and anxiety.
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Reposted by Andrew Glazer
Joe Marsh @jmarshlab.bsky.social · 15/04/2025
New paper out in Genome Biology! 🎉 We lay out best-practice guidelines for releasing variant effect predictors, developed through the Atlas of Variant Effects Alliance @varianteffect.bsky.social Open, interpretable, and clinically useful VEPs are the goal. 📄 doi.org/10.1186/s130...
doi.org
Guidelines for releasing a variant effect predictor - Genome Biology
Computational methods for assessing the likely impacts of mutations, known as variant effect predictors (VEPs), are widely used in the assessment and interpretation of human genetic variation, as well...
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The American Journal of Human Genetics @ajhgnews.bsky.social · 17/04/2025
📣New from Bastarache & co 📄Characterizing trends in clinical genetic testing: A single-center analysis of EHR data from 1.8 million patients over two decades
cell.com
Characterizing trends in clinical genetic testing: A single-center analysis of EHR data from 1.8 million patients over two decades
A study of electronic health records (EHRs) from 1.8 million patients at Vanderbilt University Medical Center highlights the growing role of genetic testing in clinical medicine. The study demonstrate...
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Reposted by Andrew Glazer
Nicky Whiffin @nickywhiffin.bsky.social · 11/04/2025
🚨I could not be more excited to share our new preprint on saturation genome editing of the small nuclear RNA (snRNA) RNU4-2: www.medrxiv.org/content/10.1... A super fun collaboration with incredible duo @gregfindlay.bsky.social @joachimdejonghe.bsky.social from @crick.ac.uk 🧬🖥️🩺 🧵1/12
medrxiv.org
Saturation genome editing of RNU4-2 reveals distinct dominant and recessive neurodevelopmental disorders
Recently, de novo variants in an 18 nucleotide region in the centre of RNU4-2 were shown to cause ReNU syndrome, a syndromic neurodevelopmental disorder (NDD) that is predicted to affect tens of thous...
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Chai Ann Ng @chaiannng.bsky.social · 27/03/2025
I am pleased to share this @ahajournals.bsky.social CircGen paper. It is a team effort. I hope we have provided valuable insights on how KCNH2 variant that alters splicing and causes a large in-frame deletion can lead to a dominant negative effect of Kv11.1 K+ #ionchannel function.
ahajournals.org
Combined RNA Splicing and Patch-Clamp Analysis Reveal Pathogenicity of Splice-Altering Variants in KCNH2-Related LQTS | Circulation: Genomic and Precision Medicine
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Andrew Glazer @amglazer.bsky.social · 22/03/2025
It was great to attend the ACMG clinical genetics meeting for the first time, including a fun session on advances in cardiovascular genomics.
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Andrew Glazer @amglazer.bsky.social · 20/03/2025
This was a collaborative project led by Matthew O'Neill and Joanne Ma and co-supervised by Jamie Vandenberg, @chaiannng.bsky.social and myself. Check out our preprint for more details! www.medrxiv.org/content/10.1... [7/7]
medrxiv.org
Cohort-scale automated patch clamp data improves variant classification and penetrance stratification for SCN5A-Brugada Syndrome
Background: Brugada Syndrome (BrS) is an inherited arrhythmia disorder that causes an elevated risk of sudden cardiac death. Approximately 20% of patients with BrS have rare variants in SCN5A, which e...
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Andrew Glazer @amglazer.bsky.social · 20/03/2025
Our data helps stratify SCN5A variants in BrS patients into normal-function "bystander" variants with low BrS risk and loss-of-function variants with higher BrS risk. We hope the dataset will improve diagnosis and clinical management of BrS patients and their families. [6/7]
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Andrew Glazer @amglazer.bsky.social · 20/03/2025
Disease risk was proportional to the severity of loss-of-function; variants with Z ≤ -6 had a penetrance of 24.5% and an odds ratio of 501 for BrS. [5/7]
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Andrew Glazer @amglazer.bsky.social · 20/03/2025
Out of 252 variants, 146 were functionally abnormal (Z ≤ -2), with 100 showing severe loss-of-function (Z ≤ -4). Functional evidence allowed us to reclassify 110 of 225 VUS: 104 to likely pathogenic and 6 to likely benign. [4/7]
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Andrew Glazer @amglazer.bsky.social · 20/03/2025
Using automated patch clamp, we analyzed 252 SCN5A variants from a previously published cohort of 3,335 BrS cases. We previously showed this assay performs well on benign/pathogenic controls. The controls were used to calculate normalized Z-scores for the 252 variants. [3/7]
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Andrew Glazer @amglazer.bsky.social · 20/03/2025
Brugada Syndrome (BrS) is an inherited arrhythmia disorder with an elevated risk of sudden cardiac death. ~20% of patients have rare variants in the cardiac sodium channel gene SCN5A. Challenges include Variants of Uncertain Significance (VUS) and incomplete penetrance. [2/7]
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Andrew Glazer @amglazer.bsky.social · 20/03/2025
🧵 I’m excited to share our latest preprint! We studied 252 SCN5A variants found in patients with Brugada Syndrome by automated patch clamp. [1/7]
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Atlas of Variant Effects Alliance @varianteffect.bsky.social · 25/02/2025
The 8th Annual Mutational Scanning Symposium is just around the corner! #VariantEffect25 What we are looking forward to: 🗣️Great talks! 🛠️Workshops! 🏆Poster session and awards! 🌏Amazing community! ⌛️March 1st deadline for abstracts!
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Jodie Ingles @jodieingles27.bsky.social · 18/02/2025
Q: How many genes should be tested for patients with hypertrophic cardiomyopathy? A: 29 Excited to share our latest: Re-Appraisal of HCM genes by our ClinGen Hereditary CVD Gene Curation Expert Panel out today in @jaccjournals.bsky.social www.sciencedirect.com/science/arti...
sciencedirect.com
Genes Associated With Hypertrophic Cardiomyopathy: A Reappraisal by the ClinGen Hereditary Cardiovascular Disease Gene Curation Expert Panel
Hypertrophic cardiomyopathy (HCM) is an inherited cardiac condition affecting ∼1 in 500 and exhibits marked genetic heterogeneity. Previously publishe…
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Misha Teplitskiy | Science of science | on LinkedIn mostly @innovation.bsky.social · 18/02/2025
asmepublications.onlinelibrary.wiley.com/doi/full/10....
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Chai Ann Ng @chaiannng.bsky.social · 09/02/2025
I have always wanted to work with testing laboratories to integrate #ionchannel functional data into their variant classification workflow to reclassify harmful variants as likely pathogenic and improve genetic diagnosis for patients with channelopathies. Under review, but preprint is available.
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Chenxin Li, PhD @chenxinli2.bsky.social · 07/02/2025
“NIH is accordingly imposing a standard indirect cost rate on all grants of 15%”
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Andrew Glazer @amglazer.bsky.social · 31/01/2025
Congrats Ellen on winning the lab ping pong tournament!
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Reposted by Andrew Glazer
Christian Mosimann @chrmosimann.bsky.social · 24/01/2025
Gotta test them all.
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Andrew Glazer @amglazer.bsky.social · 24/01/2025
Just updated this figure for 2025. There are now over 1 million missense Variants of Uncertain Significance in Clinvar!
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Atlas of Variant Effects Alliance @varianteffect.bsky.social · 24/01/2025
🎉 Registration is now open for the 8th Annual Mutational Scanning Symposium #VariantEffect25 ℹ️ events.ibecbarcelona.eu/mutational-s...
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