Ewout Groen
@ewout.bsky.social
660 followers 460 following 14 posts
Biomarkers and mRNA translation | Long-read sequencing | ASOs and gene therapy | SMA & MND research lab at UMC Utrecht | Previously University of Edinburgh | Also cycling, cats, father of 2
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Reposted by Ewout Groen
tomgillingwater.bsky.social
🚨 New #SMA paper from the lab just published in @jci-insight.bsky.social: Prenatal SMN-dependent defects in translation uncover reversible primary cilia phenotypes in spinal muscular atrophy insight.jci.org/articles/vie...
JCI Insight - Prenatal SMN-dependent defects in translation uncover reversible primary cilia phenotypes in spinal muscular atrophy
insight.jci.org
Reposted by Ewout Groen
auditorynerves.bsky.social
Every newborn baby in England will have their DNA mapped to assess their risk of hundreds of diseases.

Genomic screening of newborns for rare diseases will involve sequencing their complete DNA using umbilical cord blood samples.

🧪👶🏽🧬🩸 #medsky
www.bbc.com/news/article...
NHS plans to DNA test all babies in England to assess disease risk
Scheme is part of the government's 10-year plan for the NHS in England aimed at easing pressure on services.
www.bbc.com
Reposted by Ewout Groen
sma-europe.bsky.social
📣 5th International Scientific Congress on SMA: registration opens today! 🔬 The event will take place from 11th to 14th March 2026 in Budapest, Hungary. Visit https://congress.sma-europe.eu/ to learn more #spinalmuscularatrophy #research #raredisease
Reposted by Ewout Groen
jamessleigh.bsky.social
If you're struggling to visualise mouse NMJs, we've got a protocol just for you!

bio-protocol.org/en/bpdetail?...

Dissection and whole-mount immunofluorescent staining of mouse hind paw muscles for #NMJ analysis

Lovely work from Rebecca Simkin @uclqsion.bsky.social @nicolbirsa.bsky.social
Reposted by Ewout Groen
tomgillingwater.bsky.social
Our new open access review published in @cp-trendsmolecmed.bsky.social provides an update on the exciting potential of targeting PGK1 as a therapeutic option for neurological diseases, including Parkinson’s disease and motor neuron diseases such as ALS: authors.elsevier.com/sd/article/S...
ScienceDirect.com | Science, health and medical journals, full text articles and books.
authors.elsevier.com
Reposted by Ewout Groen
edinunineuro.bsky.social
@tomgillingwater.bsky.social lab have been collaborating with colleagues from @umcutrecht.bsky.social and CNR Trento to uncover the complex series of molecular changes that occur in motor neurons around the time of birth, when they undergo a process known as synapse elimination...
Reposted by Ewout Groen
tomgillingwater.bsky.social
In getting too excited about the front cover, I forgot to link to the actual paper 🤦‍♂️ Here it is: Dynamic modulation of the motor neuron translatome during developmental synapse elimination | Science Signaling www.science.org/doi/10.1126/...
Dynamic modulation of the motor neuron translatome during developmental synapse elimination
Superfluous axons are removed from muscle fibers through temporal changes in mRNA translation.
www.science.org
Reposted by Ewout Groen
tomgillingwater.bsky.social
There are still few better feelings as an academic than when your paper’s image is chosen for the front cover of a journal #ProudPI #NMJ Confocal micrograph taken by the amazing @drchayts.bsky.social
Front cover of Science Signaling journal with a micrograph of fluorescently labelled neuromuscular junctions (NMJs)
ewout.bsky.social
🔑 Why this matters: copy-specific variation in SMN2 could help explain:

Genotype-phenotype discordance
Variable treatment response
Disease mechanisms

TL;DR it's complicated, there's more to be done - and more to come!

#SpinalMuscularAtrophy #RareDisease @nanoporetech.com #bioinformatics

[3/3]
ewout.bsky.social
🧪 Using Nanopore sequencing + polyploid phasing, we analyzed individual SMN1/2 copies and their genomic environment, revealing copy-specific sequence and structural variants.

HapSMA is available via github.com/UMCUGenetics...

[2/3]
ewout.bsky.social
🧬 New in Genome Medicine: rdcu.be/eezPN

We developed HapSMA, a method for copy-specific analysis of the SMN locus in SMA using long-read sequencing.

🔍 Key findings:

Novel markers of SMN1→SMN2 gene conversion
42% of SMN2 copies show gene conversion
Higher complexity in patients vs controls

[1/3]
Long-read sequencing identifies copy-specific markers of SMN gene conversion in spinal muscular atrophy
rdcu.be
ewout.bsky.social
Thanks for flagging it up!
Reposted by Ewout Groen
rpavaneijk.bsky.social
New paper to reflect on the main challenges in phase 2 #ALS #MND trials. Key issues relate too short study durations, reliance on the wrong outcome measures, absence of biomarkers, statistical issues, over-interpretation of 'clinical trends' and miscommunication. academic.oup.com/brain/articl...
Rethinking phase 2 trials in amyotrophic lateral sclerosis
There is a long history of ALS therapies being promoted on the basis of Phase 2 data, which then fail to translate into meaningful benefits in Phase 3 tria
academic.oup.com
ewout.bsky.social
🧬🧠Turns out @medrxivpreprint.bsky.social automatically shared our preprint on SMA genetics before everyone joined here - which should be a good excuse to post this again!

We're working hard on revising it for definitive peer-reviewed publication, hoping to share it (+a short thread) soon(ish)
Reposted by Ewout Groen
cathyabbott.bsky.social
The SIDB PhD programme with projects on neurodevelopmental disorders (including one from our lab) is now open for applications. Good stipend, excellent environment and a beautiful city sidb.org.uk/phds/
Edinburgh skyline showing castle and Arthur's seat with blue sky
Reposted by Ewout Groen
hansonmark.bsky.social
The strain on scientific publishing: we set out to characterise the remarkable growth of the scientific literature in the last few years, in spite of declining growth in total scientists. What is going on?

direct.mit.edu/qss/article/...

A 🧵 1/n
#AcademicSky #PhDchat #ScientificPublishing #SciPub
ewout.bsky.social
Not a bad view today from the home office
ewout.bsky.social
Fred approves. Or not. One never really with cats