Joana Serrano
serrano-theham.bsky.social
Joana Serrano
@serrano-theham.bsky.social
Postdoc EMBLRome | Male reproduction, inheritance, and offspring development | (wannabe) Mediterranean
Reposted by Joana Serrano
“Today, the European Commission preliminarily found both TikTok and Meta in breach of their obligation to grant researchers adequate access to public data under the Digital Services Act (DSA).”
🧪
ec.europa.eu/commission/p...
Commission preliminarily finds TikTok and Meta in breach of their transparency obligations under the Digital Services Act
Today, the European Commission preliminarily found both TikTok and Meta in breach of their obligation to grant researchers adequate access to public data under the Digital Services Act (DSA).
ec.europa.eu
October 24, 2025 at 2:57 PM
Reposted by Joana Serrano
Well, I think that is *enormously* harder to establish than you are assuming, because so many aspects of the experiment whose role we have no knowledge of, including in the initial conditions, are unmeasured.
October 17, 2025 at 8:56 AM
Reposted by Joana Serrano
I mean the stochasticity is "inherent to development" in the sense that the phenotypic outcomes are only partly specified by genetics and, even under identical conditions, you would still get variation in outcomes
October 17, 2025 at 8:47 AM
Reposted by Joana Serrano
Yes and I'm disagreeing with that :) I don't think developmental biologists have discovered a new source of stochasticity in the universe. Biological systems are complex and have many factors we don't know about and are unable to measure. But fundamentally they are no different from other systems.
October 17, 2025 at 8:08 AM
Reposted by Joana Serrano
Just because we can't currently measure the factors that affect eg molecular concentrations, cell morphologies, differential growth, doesn't make them fundamentally different, or imply that their variation is somehow partitioned off from the world that we can measure.
October 17, 2025 at 7:27 AM
Reposted by Joana Serrano
Are you proposing that this 3rd category of 'developmental' variance is somehow independent of either genetic or environmental factors? What's the source of it then, quantum mechanics?
October 16, 2025 at 10:03 PM
Reposted by Joana Serrano
So, in my view, handedness is a great example of a trait where the relationship between genotype and phenotype is just inherently probabilistic. What you inherit is a likelihood, but how that plays out depends significantly on chance. (No hidden variables).
October 16, 2025 at 6:22 PM
Reposted by Joana Serrano
Now published! Our paper on:
(1) Accurate sequencing of sperm at scale
(2) Positive selection of spermatogenesis driver mutations across the exome
(3) Offspring disease risks from male reproductive aging
[1/n]
www.nature.com/articles/s41...
Sperm sequencing reveals extensive positive selection in the male germline - Nature
A combination of whole-genome NanoSeq with deep whole-exome and targeted NanoSeq is used to accurately characterize mutation rates and genes under positive selection in sperm cells.
www.nature.com
October 8, 2025 at 3:51 PM
Reposted by Joana Serrano
A new research from EMBL Rome scientists suggests that the pupil does more than just respond to light and internal states – it may actively shape our vision.

Their findings reveal that the pupil can integrate input from both eyes, impacting the entire visual pathway.
www.embl.org/news/science...
September 19, 2025 at 6:51 AM
Reposted by Joana Serrano
Genetic "optimization" of embryos appears to be becoming mainstream. The narrative currently is largely controlled by startups that range across the spectrum from hardcore snake-oil to well-intentioned & occasionally strong domain expertise. But these are not neutral parties. 1/
July 31, 2025 at 3:33 PM
Reposted by Joana Serrano
Long-awaited results suggest that mitochondrial donation can prevent babies from inheriting diseases caused by mutant mitochondria

go.nature.com/4nUQHAq
‘Landmark’ study: three-person IVF leads to eight healthy children
Long-awaited results suggest that mitochondrial donation can prevent babies from inheriting diseases caused by mutant mitochondria.
go.nature.com
July 17, 2025 at 9:28 AM
Reposted by Joana Serrano
I wrote about the genomics side of the NHS health plan here (www.linkedin.com/feed/update/...) - it is more than the newborn sequencing side - and probably most importantly it is well thought through
On my trip back from France I've written a length article about the genomics heavy 10-year health plan for England - read on to hear my thoughts about the ambition and realism of this plan - what ...
On my trip back from France I've written a length article about the genomics heavy 10-year health plan for England - read on to hear my thoughts about the ambition and realism of this plan - what ...
www.linkedin.com
July 11, 2025 at 8:14 AM
Reposted by Joana Serrano
Excellent analysis of unanswered questions: would this would be a great thing, a marginally good thing, or a bad thing? I don't know; neither does NHS. Why not do more piloting to find out?
I suspect the university/bioindustrial complex will win & we'll do it. It's sexy & it "seems" to make sense.
July 10, 2025 at 11:08 PM
Reposted by Joana Serrano
Karolinska is looking for 20 (!!) assistant professors and offering 6 year appointments with ~1M USD startup packages.

ki.se/en/about-ki/...
Call for 20 Assistant Professor positions
Karolinska Institutet is a world-leading medical university with a long and proud history of ground-breaking research. We are now recruiting outstanding early-career researchers with particularly exce...
ki.se
June 25, 2025 at 2:56 PM
Reposted by Joana Serrano
TCA cycle rewiring underpins implantation and histone acetylation programming https://www.biorxiv.org/content/10.1101/2025.04.25.650409v1
April 29, 2025 at 1:37 PM
Reposted by Joana Serrano
The deadline for the following grants is 7 March:
- Scientific Meeting Grants
- Grants from our Fund for Innovations in Sustainable Conferencing
- JCS-FocalPlane Training Grants @jcellsci.bsky.social @focalplane.bsky.social

Find out more and apply at: www.biologists.com/grants
About our grants
Our grants support and encourage the sharing of knowledge throughout the community by facilitating international collaboration, event attendance and the organisation of scientific meetings,…
www.biologists.com
March 3, 2025 at 10:15 AM
Reposted by Joana Serrano
Great write up at @thetransmitter.bsky.social on the seeming erasure of SABV in the new era of NIH. Gotta say The Transmitter is killing it the last few weeks, first to report on the Federal Register block and now this. Leading the charge! 💪 www.thetransmitter.org/policy/exclu...
Exclusive: NIH appears to archive policy requiring female animals in studies
Such a shift would “put us back in the dark ages in terms of our science,” says neuroscientist Anne Murphy, who helped to formulate the original policy.
www.thetransmitter.org
February 25, 2025 at 1:14 AM
Reposted by Joana Serrano
5/ How should the scientific community respond?
Seek immediate IRB guidance.
Demand that universities & professional bodies speak out.
Use legal challenges where possible.
Avoid self-censorship & anticipatory compliance.
Speak with one voice—ethical standards must be maintained.
February 12, 2025 at 12:10 PM
Reposted by Joana Serrano
"Health institutions may be hesitant to criticise the new administration publicly, but this timidity is a mistake. Trump's actions must be called out for the damage they are doing.
(...)
The medical and scientific communities must come together and stand up for this vision."

@thelancet.bsky.social
American chaos: standing up for health and medicine
Withdrawal from WHO and the Paris Agreements. USAID shuttered and aid halted, ceasing health programmes globally. A freeze on US$3 trillion worth of federal grants and loans, jeopardising the function...
www.thelancet.com
February 7, 2025 at 2:44 PM
Crucial (and beautiful) work on Y-chromosome gene function in spermatogenesis with systematic male reproductive phenotyping! A key step toward understanding male-factor infertility — often overlooked but responsible for 50% of infertility cases. More studies like this are needed. #ReproductiveHealth
January 29, 2025 at 2:49 PM
Reposted by Joana Serrano
All NIH study sections canceled indefinitely. This will halt science and devastate research budgets in universities.
January 22, 2025 at 8:46 PM
Reposted by Joana Serrano
"“Let’s edit your baby’s genome and hope for the best” is not exactly a compelling marketing slogan. It’s certainly not a responsible medical attitude."
This is a typically first-class analysis from @wiringthebrain.bsky.social.
www.wiringthebrain.com/2025/01/euge...
Eugenics, statistical hubris, and unknowable unknowns in human genetics
A new paper just out in Nature , by Peter Visscher and colleagues (including bio-ethicist Julian Salvulescu) explores the idea of polygenic...
www.wiringthebrain.com
January 14, 2025 at 10:14 AM
Reposted by Joana Serrano
Reposted by Joana Serrano
Ooooh new @lonelypipette.bsky.social just dropped with the one and only Ana Boskovic (who's not on Bluesky?!?!) Guaranteed to be a good listen! www.buzzsprout.com/1356877/epis...
TLP #34 : The "right" To-Do list - Ana Boskovic - The Lonely Pipette : helping scientists do better science
This month we talk with Ana Boskovic about her experience of setting up her own lab and hiring a new teamAna began studying languages and literature… but found it too easy, so she switchedShe question...
www.buzzsprout.com
November 26, 2024 at 6:49 AM