Jonathan Marchini

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Jonathan Marchini

Jonathan Marchini

@marchini

Head of Statistical Genetics and Machine Learning at the Regeneron Genetics Center. Husband, Dad, Cycling addict. Stats/ML. Former Oxford Professor.

Katılım Mart 2009
127 Takip Edilen2.9K Takipçiler
Jonathan Marchini retweetledi
Regeneron Genetics Center
Regeneron Genetics Center@RegeneronDNA·
Our paper in @NatureComms reveals how myostatin gene variants may protect muscle mass during weight loss. By studying 1M+ individuals, we found that rare MSTN variants are linked to increased skeletal muscle mass and reduced body fat. Learn more: go.nature.com/3OyD0uo
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Jonathan Marchini retweetledi
Regeneron Genetics Center
Regeneron Genetics Center@RegeneronDNA·
We’re announcing a new collaboration with TriNetX to support Regeneron’s drug discovery and development and advance future digital health solutions. The work expands RGC’s EHR-linked database with access to ~300M de-identified patient records. Read more: bit.ly/41bdUEE
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Jonathan Marchini retweetledi
Regeneron Genetics Center
Regeneron Genetics Center@RegeneronDNA·
Neurological disease risk is more common, and neurodegeneration may be detected earlier than we thought. RGC analyzed 1M+ genomes, finding repeat expansions are more widespread, and that brain changes may begin years before symptoms appear. Via @Nature: bit.ly/4tikaXH
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David J Glass MD
David J Glass MD@davidjglassMD·
Humans with function-disrupting variants in the myostatin gene (MSTN) have increased skeletal muscle mass and strength, and less adiposity nature.com/articles/s4146…
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Karl Landheer
Karl Landheer@KarlLandheer·
@hthieblot I was ranked #1 in wow during its most competitive arena era, held #1 in wc3 ladder and am currently top 5k in dota
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Hubert Thieblot
Hubert Thieblot@hthieblot·
if you ever meet someone who at one point was globally ranked in a video game hire them immediately
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Jonathan Marchini retweetledi
Veera Rajagopal 
Veera Rajagopal @doctorveera·
It's such a painful process to upload summary statistics to GWAS catalog. Hey @GWASCatalog if you really care for open data sharing, then make the submission process simple. Get rid of globus personal connect.
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Jonathan Marchini
Jonathan Marchini@marchini·
JOB ADVERT If you work in statistical genetics/machine learning/imaging and want to join the amazing RGC team @RegeneronDN working on some of the largest and most ancestrally diverse genetic datasets in the world, then check out this role careers.regeneron.com/en/jobs/r41506/
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Regeneron
Regeneron@Regeneron·
📣Today we announced that we intend to acquire @23andMe with plans to maintain their consumer genetics business and advance our shared goal of improving human health and wellness. bit.ly/43gI75D
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Jonathan Marchini retweetledi
Regeneron Genetics Center
Regeneron Genetics Center@RegeneronDNA·
We’re collaborating with @truveta, @illumina, and U.S. health systems to create the largest, most-diverse genetic database of electronic health records and linked genetic data to advance scientific innovation and healthcare delivery.
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Jonathan Marchini
Jonathan Marchini@marchini·
Fourth, we have extended the approach to handle binary trait meta-analysis of gene-based tests with high case-control imbalance and show that this is well calibrated.
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Jonathan Marchini
Jonathan Marchini@marchini·
Third, p-values alone are not sufficient for follow up interpretation of gene-based tests. So we developed a very accurate approximate method for calculating allele frequencies, genotype counts and effect size of burden tests from summary statistics.
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Jonathan Marchini
Jonathan Marchini@marchini·
Second, we have developed a compact per-chromosome binary file format for the LD files. The format handles both marginal and conditional testing scenarios and is indexed to allow fast access to the LD information of any gene.
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Jonathan Marchini
Jonathan Marchini@marchini·
The approach is accurate when compared to existing approaches to meta-analysis that do not use summary stats. For some tests like variance component and ACATV tests it can lead to more power as it avoids having to meta-analyze p-values.
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Jonathan Marchini
Jonathan Marchini@marchini·
REMETA solves these challenges and has several nice properties. Firstly, REMETA uses a single sparse covariance reference file per study that is rescaled for each phenotype using single variant summary statistics. This can be pre-calculated once, so it massively cuts down storage
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Jonathan Marchini
Jonathan Marchini@marchini·
It leads to a simple 3 stage approach to meta-analysis of ExWAS.
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