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Rafael Almeida

@almeidalab.bsky.social
1.1K followers 2.7K following 27 posts

Chancellor's Fellow (ERC StG & NIRG) @ Institute for Neuroscience and Cardiovascular Research, University of Edinburgh 🐟🧠 🏳️‍🌈 Interested in synaptic and non-synaptic neurotransmission, and myelin #zebrafish #neurobiology #neuroscience almeida-lab.com

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Reposted by Rafael Almeida
Cedric Boeckx @cedricboeckx.bsky.social · 19/08/2026
New @nature.com study from Paola Arlotta’s lab, led by @irenefaravelli.bsky.social & @bolanosanton.bsky.social, probing how well brain organoids recapitulate maturational steps, by keeping human brain organoids for 5 years in culture 🧪🧫🧠 www.nature.com/articles/s41...
nature.com
Human brain organoids record the passage of time over multiple years - Nature
Human brain organoids were developed for over five years in culture to demonstrate that brain cells can continue to mature and record the passage of time, following human-specific endogenous programs,...
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Rafael Almeida @almeidalab.bsky.social · 29/07/2026
We're delighted to welcome our new postdoc Carla Peiró back to the lab, with some lovely scottish summer rain 🌧! Didn't stop us enjoying a drink outside, but this is how we went home 🏄‍♂️
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Reposted by Rafael Almeida
MariaEichelVogel.bsky.social @mariaeichelvogel.bsky.social · 19/07/2026
Excited to share my postdoc paper from the @lyons-lab.bsky.social Our question: what controls axon diameter? It varies >100-fold between neurons, shapes signal speed & myelination, and changes in disease. Yet very little is known about what regulates it. 🧵 journals.plos.org/plosbiology/...
journals.plos.org
A high-resolution phenotypic screen identifies regulators of CNS axon diameter in zebrafish
Axon diameter is important for action potential conduction speed, but what molecular pathways influence this neuronal property? This study reports a high-resolution imaging-based chemical screening pi...
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Rafael Almeida @almeidalab.bsky.social · 25/07/2026
New preprint from the lab 🥳 We made new knock-in zebrafish 🐟 that fluorescently tag endogenous neurofascins. So now, we can live-image neuronal nfasca/NF186 and glial nfascb/NF155 non-invasively, as nerves, nodes of Ranvier and paranodes develop in vivo 🧵👇 www.biorxiv.org/content/10.6...
biorxiv.org
Live-imaging of endogenous neurofascins reveals glial adhesion shapes developing nodes of Ranvier
The organisation of myelinated axons into specialised domains is essential for saltatory conduction and depends on the polarised distribution of neuronal and glial cell-adhesion molecules, including n...
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Rafael Almeida @almeidalab.bsky.social · 19/06/2026
And it is an award winning poster! Well done Phoebe! 🥳🥳🥳 #MSFrontiers
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Rafael Almeida @almeidalab.bsky.social · 18/06/2026
And here is our PhD student Phoebe presenting her poster on glial Neurofascin #MSFrontiers
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Rafael Almeida @almeidalab.bsky.social · 18/06/2026
Looking forward to a day of hearing about cutting edge MS research at #MSFrontiers Here is our postdoc @sophiesiems.bsky.social presenting the first ECR talk
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Rafael Almeida @almeidalab.bsky.social · 09/06/2026
Very proud of our lab's & @lidazoupi.bsky.social lab's PhD student Inés Jiménez Pulido, for bagging a Poster Prize at the UK Glia Meeting, showing her work developing cell type-specific inhibitors of myelination in 🐁 and 🐟 ! Well done Inés 🥳🥳🥳
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Reposted by Rafael Almeida
Dr. Lucky Tran @luckytran.com · 02/06/2026
Incredible! Scientists receive a rare standing ovation after announcing that a new treatment can double the survival time for pancreatic cancer, the deadliest cancer which was once considered “undruggable.” When we fund and support science, we can achieve anything! (Video: Dr. Wish Dhillon)
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Rafael Almeida @almeidalab.bsky.social · 02/06/2026
I had a great time last week presenting our work on the axon-myelin interface dynamics in zebrafish, seeing familiar faces & catching up in my hometown at the X Symposium of the Portuguese Glia Network. Thanks to the organisers!
Group photo of the attendants of the X Symposium of the Portuguese Glia NetworkA tote bag and lanyard provided by the organisers of the X PGN symposiumA high resolution view of two myelinated axons in a peripheral zebrafish nerve, with a node of Ranvier and a heminode in magenta, and myelin sheaths in green
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Rafael Almeida @almeidalab.bsky.social · 20/03/2026
A few moments from our department's zebrafish retreat in the Scottish Highlands. Phoebe presented her work, and the lab enjoyed some lovely scenery. Briefly checked the stone circle in the interest of science. No time travel ensued, despite the equinox.
A group of researchers standing together outdoors, smiling in front of sweeping Highland scenery with hills and open sky in the background.An ancient stone circle set in a grassy landscape, with large weathered stones arranged in a ring under an overcast sky.A calm Scottish loch surrounded by hills, with still water reflecting the muted sky and rugged landscape.Phoebe giving a scientific presentation, slides projected behind her, with colleagues seated and listening attentively.
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Rafael Almeida @almeidalab.bsky.social · 14/02/2026
Super proud of our postdoc @sophiesiems.bsky.social for securing a MSCA award to fund her ambitious project on the axon-myelin interface across vertebrates 🐟🐁🧠. Very competitive call this year– feeling humbled and grateful to @ec.europa.eu marie-sklodowska-curie-actions.ec.europa.eu/news/msca-aw...
marie-sklodowska-curie-actions.ec.europa.eu
MSCA awards €404.3 million to postdoctoral researchers
1610 outstanding postdoctoral researchers were selected for funding among 17,066 applicants.
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Reposted by Rafael Almeida
Rita Mateus @ritamateus.bsky.social · 05/02/2026
New paper alert!🤩Super proud that our story led by superstar postdocs @liujinghui.bsky.social and @nerlielisa.bsky.social is finally out! We found how electrical signals are key for promoting organ regenerative growth!!! A thread 🧵https://www.science.org/doi/10.1126/sciadv.aec0687
science.org
Injury-induced electrochemical coupling triggers organ growth
Organ repair and growth rely on coupling tissue-wide membrane depolarization with intracellular proliferative signaling.
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Reposted by Rafael Almeida
Hauke Werner @myelincentric.bsky.social · 02/02/2026
If you're interested in the factors that enable the regular structure of CNS #myelin sheaths by #oligodendrocytes, check this out. Featuring a #CDC42 - effector proteins - #septin axis. Congrats to 1st author Sophie, and a big thank you to all who contributed onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
CDC42‐Effector Proteins Regulate Higher Order Structure of Septins Required for CNS Myelin Integrity
CDC42-effector proteins 1/2 are present in CNS myelin. They facilitate the higher order structure of myelin septin filaments. Their loss impairs septin-dependent scaffolding of myelin. Myelin o...
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Rafael Almeida @almeidalab.bsky.social · 22/12/2025
Happy holiday wishes from the Almeida Lab 🎄✨️ Very grateful to an excellent team for all the thinking, tinkering, and troubleshooting in 2025. Extra proud of our two postdocs @sophiesiems.bsky.social and @katymarshallphelps.bsky.social landing their own pilot grants just in time for Christmas 🎁
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Reposted by Rafael Almeida
Katy Marshall-Phelps @katymarshallphelps.bsky.social · 17/12/2025
Very grateful to the RSMacDonald Trust for funding my pilot project to establish zebrafish models of STXBP1-related NDDs - a brilliant pre-Christmas 🎁 Thanks so much to the @almeidalab.bsky.social for their continued support!
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Reposted by Rafael Almeida
Sophie Siems @sophiesiems.bsky.social · 15/12/2025
Pleased to share that I’ve been awarded a Catalyst Award from the @mssocietyuk.bsky.social 🥳 Many thanks to the MS Society UK for supporting our research in the @almeidalab.bsky.social and helping to advance understanding of MS!
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Rafael Almeida @almeidalab.bsky.social · 10/12/2025
Shout-out to our PhD student Wei Huang for stepping up to present her work on zebrafish motor neuron synaptic protein heterogeneity at the Darwin Trust symposium — great to see the project (and presentation skills) evolving nicely! 🐟 🔬🧠
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Rafael Almeida @almeidalab.bsky.social · 28/11/2025
Enhorabuena Dr Carla Peiró for smashing your PhD defence cum laude! And teaching us about myelin internalization when she visited from the Achucarro! 🐟🐁
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Reposted by Rafael Almeida
i3S - Institute for Research and Innovation in Health | UPorto @i3suporto.bsky.social · 27/11/2025
OPPORTUNITIES ⏰Dec 15➡️Assistant Researcher➡️Project FORTIFISH at #i3S. Profile: PhD in biomed sci, veterinary sci or related; Relevant publication record demonstrating research expertise in zebrafish behaviour & welfare; Extensive hands-on expertise in ...👇 👉https://tinyurl.com/3mk3bbfa #i3Sjobs
tinyurl.com
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Reposted by Rafael Almeida
Gal Haimovich ☣ 🧪🔬🎗 @grnfluoresceblg.bsky.social · 22/11/2025
This is important for 🧪🔬 www.embopress.org/doi/full/10....
embopress.org
Fluorescent protein and peptide tags alter condensate formation and dynamics in vivo and in vitro | EMBO reports
imageimageProtein and peptide tags can profoundly alter condensation in a tag- and protein-specific manner, both in cells and in vitro, highlighting the need for careful validation in condensate studi...
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Rafael Almeida @almeidalab.bsky.social · 21/11/2025
Happy to share that I passed my tenure review. Excited to be doing research until someone kicks me out!
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Rafael Almeida @almeidalab.bsky.social · 14/11/2025
Excitement is brewing amongst the team to welcome Neuroscience MSc students to the lab next week. Can't wait to show them Fin Diesel 🐟🔬
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Rafael Almeida @almeidalab.bsky.social · 31/10/2025
👁Happy Halloween from our resident Cyclops fish 👁
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Rafael Almeida @almeidalab.bsky.social · 24/10/2025
Congrats to our PhD Wei Huang for getting a wee grant for upskilling her 🐟🔬 analysis - thank you Darwin Trust!
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Rafael Almeida @almeidalab.bsky.social · 24/10/2025
Updated Almeida lab photo :)
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Reposted by Rafael Almeida
Hauke Werner @myelincentric.bsky.social · 03/09/2025
If you're interested in trafficking of #myelin constituents in #oligodendrocytes, and of course you are, you may want to check out our new preprint. It's very nice PhD work by @sophiesiems.bsky.social, and we're grateful to all who contributed! www.biorxiv.org/content/10.1...
biorxiv.org
Adaptor protein complex 2 (AP2) participates in biogenesis and homeostasis of myelin sheaths in the central nervous system
Myelination of CNS axons requires oligodendrocytes to undergo extensive morphological changes by producing large amounts of myelin membrane with defined protein composition and structure. The formatio...
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Rafael Almeida @almeidalab.bsky.social · 15/08/2025
Thrilled that myelin purifier extraordinaire @sophiesiems.bsky.social bagged a DFG fellowship from the Walter Benjamin Program to study axon-myelin adhesion dynamics in zebrafish! Congrats Sophie, and thanks DFG ☺️
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Reposted by Rafael Almeida
lyons-lab.bsky.social @lyons-lab.bsky.social · 16/01/2025
Couple of opportunities up to join the group! One at postdoc level, but open to senior support path. One research assistant role. Please share, or drop a line if you want to learn more! Or just apply! Thanks! elxw.fa.em3.oraclecloud.com/hcmUI/Candid... elxw.fa.em3.oraclecloud.com/hcmUI/Candid...
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Rafael Almeida @almeidalab.bsky.social · 13/12/2024
Celebrating a very Scottish Christmas season in the Almeida lab with deep fried mars bars 🤤🎅🎄
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