Winona Oliveros
@oliveroswinona.bsky.social
460 followers 1.2K following 19 posts
Microbiologist — Bioinformatics — PhD in Biomedicine/Bioinformatics (BSC) — Postdoc @ Lappalainen Lab
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Reposted by Winona Oliveros
beatrizurda.bsky.social
1/ Everything that could go wrong in paper publishing… did.
A story of patience, absurdity, and persistence 🌀 <1min

From Alfonso Valencia’s lab and a very stubborn PhD student (me).
Reposted by Winona Oliveros
bsc-cns.bsky.social
🚬The molecular impact of cigarette smoking resembles aging across tissues

⭕This is the 1st comprehensive, multi-tissue analysis to show that smoking doesn’t just harm specific organs like the lungs 🫁

📄By BSC & Universidade do Porto researchers, published in Genome Medicine: bsc.es/Zt2
oliveroswinona.bsky.social
This work highlights the widespread and multi-layered impact of smoking on biological aging and reinforces the value of integrative, system-level approaches to public health research.

It’s been an immense pleasure to collaborate on this project with such a talented team!
oliveroswinona.bsky.social
In this study, we show how tobacco use accelerates aging across nearly all tissues in the human body; not just through histological changes, but also at the levels of DNA methylation and gene expression.
Reposted by Winona Oliveros
npujol.bsky.social
so well deserved! congratulations!!! @pclavell.bsky.social @melelab.bsky.social 🚀⭐️💫
eshg.bsky.social
ESHG2025# Early Career awards:
For outstanding science presented at the conference

- Allison Newman, Exeter, UK
- Hristiana Lyubenova, Berlin, Germany
- Robin J. Hofmeister, Lausanne, Switzerland
- Pau Clavell-Revelles, Barcelona, Spain
Reposted by Winona Oliveros
pclavell.bsky.social
It's been an absolute pleasure to present my work on long-read transcriptomics in front of such a big audience at the European Conference of Human Genetics @eshg.bsky.social in Milano.
The feedback and the discussion were extremely interesting and useful!
Reposted by Winona Oliveros
pclavell.bsky.social
I am so happy to learn that I won the Early Career Award for an outstanding presentation at the ESHG!!
Thanks to @melelab.bsky.social, @guigolab.bsky.social and to my awesome colleagues that also attended the conference for their support @rubenchazarra.bsky.social @ramirezjmiguel.bsky.social
Reposted by Winona Oliveros
tuuliel.bsky.social
Our new contribution to the quest to find causal GWAS genes! Sam Ghatan from my lab at @nygenome.org led a systematic comparison of eQTLs and CRISPRi+scRNA-seq screens. TL;DR: they provide highly complementary insights, with ortogonal pros and cons. 🧵👇
www.biorxiv.org/content/10.1...
oliveroswinona.bsky.social
I’m so sorry to hear this, John. Keeping you and your family in my thoughts. When I faced something similar, what kept me going was thinking about how proud they are of what we do. Just spending time with them and doing your best really matters. You will get through this, I’m sure of it!
oliveroswinona.bsky.social
Aging & PRC:
Aging increases DNA methylation at PRC target sites across most tissues, consistent with the literature. But interestingly: not in the gonads!
Why gonads behave differently is still an open question.
oliveroswinona.bsky.social
Focusing on the sex differences, we found:
The female genome is hypermethylated across tissues.
Why? We hypothesize that it is likely due to the continuous activity of the Polycomb Repressive Complex (PRC), a key chromatin regulator in the X chromosome inactivation.
oliveroswinona.bsky.social
But does DNA methylation mediate gene expression changes?
Surprisingly, less than 10% of the expression variation linked to sex, age, or ancestry is explained by methylation, with ancestry showing the highest mediation.
oliveroswinona.bsky.social
Which factors matter most?
Genetic ancestry and age have stronger effects on methylation than sex.
But: (1) Age changes are widespread but modest. (2) Ancestry changes are more localized and often under genetic control.
oliveroswinona.bsky.social
First: DNA methylation varies more than gene expression across individuals.
This suggests methylation captures broader inter-individual variability, possibly including environmental and genetic effects.
oliveroswinona.bsky.social
Excited to share our new preprint: The impact of sex, age, and genetic ancestry on DNA methylation across tissues. Briefly, we explored how sex, age, and genetic ancestry shape DNA methylation across tissues and individuals. Want to know a bit more? Follow this “bluetorial”!
doi.org/10.1101/2025...
The impact of sex, age, and genetic ancestry on DNA methylation across tissues
Background: Understanding the consequences of individual DNA methylation variation is crucial for the study of human biology and disease. However, the collective impact of demographic traits on DNA me...
www.biorxiv.org
Reposted by Winona Oliveros
crg.eu
It's a beautiful spring day in Barcelona. Sunshine welcoming all our guests for the first day of the CRG's annual symposium! This year's theme is all about the mechanisms of gene expression.
Reposted by Winona Oliveros
vikilovesfacs.bsky.social
👶🏼 Many #vaccines are not effective in newborns. So how do we protect them from infectious disease?

🤰🏽 By vaccination in #pregnancy!

Here we review…

💉 Established campaigns vs whooping cough, flu, COVID

💡 New approaches to RSV, GBS

🌈 Future challenges, opportunities

#ReproSky #ImmunoSky #IDSky
Vaccination in pregnancy to protect the newborn - Nature Reviews Immunology
In this Review, Male and Jones provide an overview of the current vaccines that are offered during pregnancy and to newborns, explaining the rationale behind the different vaccination programmes and t...
www.nature.com
Reposted by Winona Oliveros
altnih4science.bsky.social
We called out Harvard in the past for inaction. So now we are happy to speak out with praise.

This is a major step forward.

It’s not just a lack of capitulation. It’s an aggressive effort leaning into public comms — exactly what is needed. Bravo to Harvard 👏
malindalo.bsky.social
Harvard redid its whole homepage to push back against the administration’s demands. I mean, this is just a website but I think it’s kind of a great PR move: www.harvard.edu
Harvard University
Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders who make a difference globally.
www.harvard.edu
Reposted by Winona Oliveros
bsc-cns.bsky.social
🎆 Congratulations to @elisamasber.bsky.social, from the Aerosols, Dust and Climate group, on the successful defence of her #PhD thesis!

🙌We wish you all the best, Elisa!

#BSCTalent