Josep Mercader
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josepmercader.bsky.social
Josep Mercader
@josepmercader.bsky.social
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We have a new open position to analyze large-scale genomic datasets and EHR data to better understand and improve care for type 2 diabetes and monogenic diabetes, in collaboration with Chirag Patel, Miriam Udler, Aaron Leong, and many others. Please share! broadinstitute.avature.net/en_US/career...
Computational Associate II- Translational Diabetes Genomics In Diverse Populations
Apply your computational and mathematical skills to solving the hardest problems in big-data genomics and have a wide impact on science and clinical practice, including diabetes and related...
broadinstitute.avature.net
Reposted by Josep Mercader
Out now in @natgenet.nature.com, our Comment analyzing uses of the Human Genome Diversity Project (HGDP), a controversial dataset in human genomics research. A 🧵

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November 25, 2025 at 4:57 AM
Reposted by Josep Mercader
Today is the International day for the elimination of violence against women. In 2024, an estimated 50,000 women and girls were killed by intimate partners or family members worldwide. That is 137 women and girls every day. One every ten minutes. www.un.org/en/observanc...
International Day for the Elimination of Violence against Women | United Nations
The International Day for the Elimination of Violence against Women aims to create awareness of the fact that violence against women is a human rights violation that impedes progress in many areas, in...
www.un.org
November 25, 2025 at 4:28 PM
Reposted by Josep Mercader
A reminder that MODY (and type 1 diabetes) can present in older individuals and must remain in the differential diagnosis for new onset #diabetes across the lifespan diabetesjournals.org/diabetes/art...
MODY Is Prevalent in Later-Onset Diabetes and Has Potential for Targeted Therapy but Is Challenging to Identify
Maturity onset diabetes of the young (MODY) can present after the age of 40 years, but its prevalence and clinical characteristics, and the utility of simp
diabetesjournals.org
November 25, 2025 at 9:52 PM
Reposted by Josep Mercader
The US FDA approved the first cancer drug based on Broad discoveries. Developed by Bayer Healthcare Pharmaceuticals through its research alliance with Broad, this drug is approved for a type of lung cancer that previously had few treatment options. @danafarber.bsky.social
FDA approves first cancer drug based on Broad Institute science
Collaboration between Broad Institute and Bayer leads to new treatment for a hard-to-treat type of lung cancer.
www.broadinstitute.org
November 20, 2025 at 3:24 PM
Reposted by Josep Mercader
Scientific breakthroughs are rarely unique; someone else would’ve made them soon enough. But when prominent scientists cause harm, that harm isn’t inevitable; the world might simply have been better had the harm not been inflicted.
liorpachter.wordpress.com/2018/05/18/j...
James Watson in his own words
“Some anti-Semitism is justified” “Whenever you interview fat people, you feel bad, because you know you’re not going to hire them” “Japan should be bombed for d…
liorpachter.wordpress.com
November 8, 2025 at 4:29 AM
We have a new open position to analyze large-scale genomic datasets and EHR data to better understand and improve care for type 2 diabetes and monogenic diabetes, in collaboration with Chirag Patel, Miriam Udler, Aaron Leong, and many others. Please share! broadinstitute.avature.net/en_US/career...
Computational Associate II- Translational Diabetes Genomics In Diverse Populations
Apply your computational and mathematical skills to solving the hardest problems in big-data genomics and have a wide impact on science and clinical practice, including diabetes and related...
broadinstitute.avature.net
November 15, 2025 at 4:32 PM
Reposted by Josep Mercader
The recording of "Gene-environment interactions: a genome-wide perspective" by Kenny Westerman is now available: www.youtube.com/watch?v=ukiX.... This talk is part of @broadinstitute's MPG Primer series. For more info, check out broad.io/MPGPrimer
November 14, 2025 at 10:05 PM
Reposted by Josep Mercader
Genomic superstar @chundru.bsky.social taking on fake-news genotypes in >900k individuals. He shows allele-level filtering is rarely suffifient, and makes the brave choice to properly tackle chrX!

We’ll be providing our filtered AoU WGS plink pgens for all registered users: watch this space
New paper on everyone’s favourite topic, QC!
We show why you should do genotype-level QC on your WGS data

www.biorxiv.org/content/10.1...

Very real quotes about this paper -
“The most exciting, mind-blowing paper of the year!”
“On a par with Fisher 1918”
“I read it every night. Just so beautiful”
Genotype-level quality control substantially reduces error rates in population-scale whole-genome sequencing
Population-scale whole-genome sequencing data will contain many individual-level genotype errors, even after allele-level quality control (QC). We establish the need for genotype-level QC using UK Bio...
www.biorxiv.org
November 10, 2025 at 1:10 PM
Reposted by Josep Mercader
🎉 Congrats to Julie-Alexia Dias and thanks for the shout out to @prsmethods.bsky.social !

"Some of the most formative parts of my own training have come from working across groups and institutions...through my involvement in PRIMED (Polygenic Risk Methods Development)..."
@ajhgnews.bsky.social sat with Julie-Alexia Dias, MSc, in the latest "Inside AJHG" to discuss her recently published paper, “Evaluating multi-ancestry genome-wide association methods: statistical power, population structure, and practical implications.”➡️ ashg.org/ajhg/inside-... #ASHG #humangenetics
November 7, 2025 at 12:49 AM
Reposted by Josep Mercader
We’ve put up summary statistics for over 3,000 traits in the All of Us resource, and a shiny new browser alongside it! Explore your favorite gene or phenotype here: allbyall.researchallofus.org #ASHG24
All by All
The All by All browser maps known and novel associations between genotypes and phenotypes using data contributed by All of Us Research Program participants as of July 1, 2022. All by All encompasses a...
allbyall.researchallofus.org
November 8, 2024 at 8:32 PM
Reposted by Josep Mercader
A new @natgenet.nature.com study by Broad, @mgbresearch.bsky.social, and VA Boston collaborators reveals a genetic variant that helps explain the high dilated cardiomyopathy risk in people of African ancestry.
Genetic variant increases risk of heart muscle disease common in individuals of African ancestry
A single mutation in the CD36 gene, present in 17 percent of people with African ancestry, increases a person's dilated cardiomyopathy risk by 33 percent.
broad.io
October 31, 2025 at 3:28 PM
Reposted by Josep Mercader
👀 🔖 ICYMI @prsmethods.bsky.social investigators report on incorporating social determinants of health into disease prediction in the NIH All of Us research program - www.medrxiv.org/content/10.1...
Quantifying Social Determinants of Health for Disease Prediction: A Multi-Level Approach Using Healthy People 2030 and All of Us Data
Despite the growing recognition that social determinants of health (SDoH) play a prominent role in shaping health outcomes, inconsistent measures across health systems and research studies - and the a...
www.medrxiv.org
October 29, 2025 at 10:15 PM
Reposted by Josep Mercader
New pre-print "Mendelian randomization in a multi-ancestry world: reflections and practical advice" led by @amymariemason.bsky.social on - arxiv.org/abs/2510.17554
Mendelian randomization in a multi-ancestry world: reflections and practical advice
Many Mendelian randomization (MR) papers have been conducted only in people of European ancestry, limiting transportability of results to the global population. Expanding MR to diverse ancestry groups...
arxiv.org
October 27, 2025 at 8:43 AM
Reposted by Josep Mercader
🚨 Using the GWAS Catalog “All associations” tsv download file? We recently made some changes that may affect your pipelines.

The data now includes >1m curated associations! This means the “All associations” file is extremely large!

In the latest release, you now have a choice of two formats 👇
October 23, 2025 at 4:26 PM
Very proud of four posters presented by our team right now (2.30) from: @aliciahuerta.bsky.social, Katie Taylor, Maheak Vora, Harsh Wadhwa , and Thinley Wangden.
October 15, 2025 at 6:51 PM
Reposted by Josep Mercader
Here’s a look at today’s FinnGen-related posters at #ASHG25, showcasing some of our research community's latest discoveries.
October 15, 2025 at 6:29 PM
Reposted by Josep Mercader
Welcome to #ASHG25! As our President Sarah Tishkoff just noted, next year for the first time the ASHG exec cmte will be all women. Glad to have anyone and everyone participating in this society now and in the future.
October 14, 2025 at 8:25 PM
Reposted by Josep Mercader
Attending #ASHG25? Learn how @prsmethods.bsky.social investigators are improving polygenic risk prediction in diverse populations by visiting these talks and posters docs.google.com/spreadsheets...
ASHG 2025 PRIMED Abstracts
docs.google.com
October 14, 2025 at 4:14 PM
Reposted by Josep Mercader
After yrs of disappointment scientists have made a genuine advance in treating Huntington's. The new gene therapy slowed disease progression by 75%. But it's still experimental and will likely be $$, @parshallison.bsky.social reports for @sciam.bsky.social: www.scientificamerican.com/article/firs...
How Scientists Finally Found a Treatment that Slows Huntington’s Disease
After years of heartbreak, researchers have found an experimental treatment that can slow the progression of Huntington’s disease, according to early results from a small clinical trial
www.scientificamerican.com
October 1, 2025 at 5:35 PM
Reposted by Josep Mercader
We’re getting ready for an exciting week at #ASHG2025 in Boston! Come meet the FinnGen team at booth 147 - we’ll be sharing updates and showcasing new public resources and tools. Plus, don’t miss the various presentations featuring FinnGen results across the program!
www.finngen.fi/en/meet-finn...
Meet FinnGen at the ASHG 2025! | FinnGen
Results based on the FinnGen data are presented in almost 40 talks or posters during the 2025 Annual Meeting of the American Society of Human Genetics (ASHG) in Boston, October 14-18. We also have a b...
www.finngen.fi
October 10, 2025 at 11:59 AM
Reposted by Josep Mercader
📃 We’re excited to share our latest work, now published in Nature Communications — a major update to the Genome Aggregation Database (gnomAD) that improves allele frequency resolution for two gnomAD-defined genetic ancestry groups using local ancestry inference (LAI).
Improved allele frequencies in gnomAD through local ancestry inference - Nature Communications
This study incorporates local ancestry into the Genome Aggregation Database (gnomAD) to improve allele frequency estimates for admixed populations, enhancing variant interpretation and enabling more accurate and equitable genomic research and clinical care.
www.nature.com
October 6, 2025 at 6:31 PM
Reposted by Josep Mercader
GWAS finds millions of variants — but what are the Predicted Effector Genes (PEGs)? Our Nature Genetics Perspective rdcu.be/eoqVk showed big inconsistencies.
At ASHG 2025, we’ll introduce a new standard to make PEG data FAIR.
🗓️ Ancillary Session: Oct 17 | 11:45 | Room 259A
📌Poster: Oct 16 | 2:30
Realizing the promise of genome-wide association studies for effector gene prediction
Nature Genetics - This Perspective argues that predicting effector genes for complex diseases is a key outcome of genetic association studies where standards are urgently needed to maximize...
rdcu.be
September 30, 2025 at 8:51 PM
Reposted by Josep Mercader
Exome-wide association study in 54,698 south Asians identifies novel type 2 diabetes associations with RNF19A, HNF4A, and dissects role of coding variants in GP2 and CDKAL1 https://www.medrxiv.org/content/10.1101/2025.09.24.25336527v1
September 26, 2025 at 10:40 PM
Reposted by Josep Mercader
Massive sibling regression study finds that human traits are largely environmentally driven (average heritability = 0.3)
Within-family heritability estimates for behavioural and disease phenotypes from 500,000 sibling pairs of diverse ancestries
Quantification of the direct effect of genetic variation on human behavioural traits is important for understanding between-individual variation in socio-economic and health outcomes but estimates of ...
www.medrxiv.org
September 20, 2025 at 6:19 PM
Reposted by Josep Mercader
A project many years in the process, we’re pleased to present our work on multi-ancestry meta-analysis across a boatload of traits in the UK Biobank: www.nature.com/articles/s41...
Pan-UK Biobank genome-wide association analyses enhance discovery and resolution of ancestry-enriched effects - Nature Genetics
Genome-wide analyses for 7,266 traits leveraging data from several genetic ancestry groups in UK Biobank identify new associations and enhance resources for interpreting risk variants across diverse p...
www.nature.com
September 18, 2025 at 5:25 PM