Mathias Guayasamin
@mathiasgua.bsky.social
PhD candidate in neurobiology and apprentice star-whisperer with the Murphy-Royal team 🚴🏽♂️
The work is mysterious and important
The work is mysterious and important
Pinned
#FluorescenceFriday
2-photon calcium imaging recording from a magestic astrocyte.
Title: twinkle twinkle little star
2-photon calcium imaging recording from a magestic astrocyte.
Title: twinkle twinkle little star
Reposted by Mathias Guayasamin
Fish keratocytes isolated from a fish scale crawling around. Technique: DIC microscopy. #CellBiology.
Another #NikonSmallWorldReject
Another #NikonSmallWorldReject
October 11, 2025 at 8:14 PM
Fish keratocytes isolated from a fish scale crawling around. Technique: DIC microscopy. #CellBiology.
Another #NikonSmallWorldReject
Another #NikonSmallWorldReject
Reposted by Mathias Guayasamin
"Reproducibility isn’t glamorous, but it’s essential."
@annechurchland.bsky.social speaks candidly in @thetransmitter.bsky.social about the obstacles to reproducibility and shares practical advice for other neuroscience labs.
🧠📈 www.thetransmitter.org/reproducibil...
@annechurchland.bsky.social speaks candidly in @thetransmitter.bsky.social about the obstacles to reproducibility and shares practical advice for other neuroscience labs.
🧠📈 www.thetransmitter.org/reproducibil...
Reproducibility is a team sport
Building reproducible systems across labs is possible, even in large-scale neuroscience—with rigor and collaboration.
www.thetransmitter.org
October 8, 2025 at 8:53 PM
"Reproducibility isn’t glamorous, but it’s essential."
@annechurchland.bsky.social speaks candidly in @thetransmitter.bsky.social about the obstacles to reproducibility and shares practical advice for other neuroscience labs.
🧠📈 www.thetransmitter.org/reproducibil...
@annechurchland.bsky.social speaks candidly in @thetransmitter.bsky.social about the obstacles to reproducibility and shares practical advice for other neuroscience labs.
🧠📈 www.thetransmitter.org/reproducibil...
Thrilled to have received my first ever poster prize last week at EBBS2025 in Bordeaux 🏄♂️! Cherry on top was that I actually did my master’s in Bordeaux a few years ago and saw many friendly faces during that (VERY) hot week.
We also want to celebrate the winners of the Poster Prizes! It’s never too late to recognize great science and the hard work behind it. Well done! 👏🧠
July 7, 2025 at 1:41 PM
Thrilled to have received my first ever poster prize last week at EBBS2025 in Bordeaux 🏄♂️! Cherry on top was that I actually did my master’s in Bordeaux a few years ago and saw many friendly faces during that (VERY) hot week.
Reposted by Mathias Guayasamin
Part 2 of France trip done.
Fantastic @ebbsociety.bsky.social meeting with PhD students from the lab! Topping it off with a presentation prize for @mathiasgua.bsky.social !! 🥳
Fantastic @ebbsociety.bsky.social meeting with PhD students from the lab! Topping it off with a presentation prize for @mathiasgua.bsky.social !! 🥳
July 1, 2025 at 6:17 PM
Part 2 of France trip done.
Fantastic @ebbsociety.bsky.social meeting with PhD students from the lab! Topping it off with a presentation prize for @mathiasgua.bsky.social !! 🥳
Fantastic @ebbsociety.bsky.social meeting with PhD students from the lab! Topping it off with a presentation prize for @mathiasgua.bsky.social !! 🥳
#fluorescencefriday
picture I took a few months ago with our 2P of pyramidal neurons in the lateral amygdala expressing a lactate sensor 👽
title: Paths of fear
picture I took a few months ago with our 2P of pyramidal neurons in the lateral amygdala expressing a lactate sensor 👽
title: Paths of fear
June 6, 2025 at 3:25 PM
#fluorescencefriday
picture I took a few months ago with our 2P of pyramidal neurons in the lateral amygdala expressing a lactate sensor 👽
title: Paths of fear
picture I took a few months ago with our 2P of pyramidal neurons in the lateral amygdala expressing a lactate sensor 👽
title: Paths of fear
Reposted by Mathias Guayasamin
Does publishing serve science or is science serving publishing?
Damian Pattinson and I (@elife.bsky.social) argue scientific publishing has evolved into a system that, rather than facilitate scholarly communication, distorts and dictates it.
onlinelibrary.wiley.com/doi/10.1002/...
#OpenScience
Damian Pattinson and I (@elife.bsky.social) argue scientific publishing has evolved into a system that, rather than facilitate scholarly communication, distorts and dictates it.
onlinelibrary.wiley.com/doi/10.1002/...
#OpenScience
May 19, 2025 at 2:52 PM
Does publishing serve science or is science serving publishing?
Damian Pattinson and I (@elife.bsky.social) argue scientific publishing has evolved into a system that, rather than facilitate scholarly communication, distorts and dictates it.
onlinelibrary.wiley.com/doi/10.1002/...
#OpenScience
Damian Pattinson and I (@elife.bsky.social) argue scientific publishing has evolved into a system that, rather than facilitate scholarly communication, distorts and dictates it.
onlinelibrary.wiley.com/doi/10.1002/...
#OpenScience
Reposted by Mathias Guayasamin
Thought this would be a nice way to enter the bsky community👇Delighted for Katie (now in Chris Dulla's lab at Tufts). Thank you to our collaborators, to the reviewers and to Cagla Eroglu for the highlight!
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Norepinephrine signals through astrocytes to modulate synapses
Locus ceruleus (LC)–derived norepinephrine (NE) drives network and behavioral adaptations to environmental saliencies by reconfiguring circuit functional connectivity, but the underlying synapse-level...
www.science.org
May 16, 2025 at 4:34 AM
Thought this would be a nice way to enter the bsky community👇Delighted for Katie (now in Chris Dulla's lab at Tufts). Thank you to our collaborators, to the reviewers and to Cagla Eroglu for the highlight!
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Mathias Guayasamin
This is a new image from #JWST.
The bright points with spikes are stars in the Milky Way.
Everything else is a galaxy.
Everything. Else. Is. A. Galaxy.
The bright points with spikes are stars in the Milky Way.
Everything else is a galaxy.
Everything. Else. Is. A. Galaxy.
April 29, 2025 at 6:47 PM
This is a new image from #JWST.
The bright points with spikes are stars in the Milky Way.
Everything else is a galaxy.
Everything. Else. Is. A. Galaxy.
The bright points with spikes are stars in the Milky Way.
Everything else is a galaxy.
Everything. Else. Is. A. Galaxy.
Reposted by Mathias Guayasamin
Great seminar from @lewisholt.bsky.social today at the @crchum.bsky.social !
Part of the ‘exit seminar’ as he closes in on the finish line of his PhD 🥲
Part of the ‘exit seminar’ as he closes in on the finish line of his PhD 🥲
April 29, 2025 at 2:27 PM
Great seminar from @lewisholt.bsky.social today at the @crchum.bsky.social !
Part of the ‘exit seminar’ as he closes in on the finish line of his PhD 🥲
Part of the ‘exit seminar’ as he closes in on the finish line of his PhD 🥲
Reposted by Mathias Guayasamin
Happy to share the commentary "Astrocytic CREB: The Hidden Driver of Stress Susceptibility" @mathiasgua.bsky.social and I put together for Biological Psychiatry www.sciencedirect.com/science/arti...
Astrocytic CREB: The Hidden Driver of Stress Susceptibility
www.sciencedirect.com
April 9, 2025 at 10:46 AM
Happy to share the commentary "Astrocytic CREB: The Hidden Driver of Stress Susceptibility" @mathiasgua.bsky.social and I put together for Biological Psychiatry www.sciencedirect.com/science/arti...
Reposted by Mathias Guayasamin
Program for the "Neural Circuits and Behaviour" CAN 2025 satellite is now available! We have a great day planned, and are especially looking for trainees to join the event - we'll select four trainees for talks, with a prize for best trainee talk. Details: www.eventbrite.ca/e/neural-cir...
March 24, 2025 at 8:39 PM
Program for the "Neural Circuits and Behaviour" CAN 2025 satellite is now available! We have a great day planned, and are especially looking for trainees to join the event - we'll select four trainees for talks, with a prize for best trainee talk. Details: www.eventbrite.ca/e/neural-cir...
February 14, 2025 at 4:35 PM
SUPER happy that the newest version of our preprint is finally sailing the seas on biorxiv 🤩
Quite a journey where we explored the impact of early-life-stress on fear memory specificity, neuronal circuits in the lateral amygdala and the astrocytes that regulate them 🌟
Quite a journey where we explored the impact of early-life-stress on fear memory specificity, neuronal circuits in the lateral amygdala and the astrocytes that regulate them 🌟
Delighted to share an update to our preprint, reviewed at @elife.bsky.social, and now sent back for re-review.
Colossal work by the team and driven home by @mathiasgua.bsky.social
Quick 🧵 of what's new -
www.biorxiv.org/content/10.1...
Colossal work by the team and driven home by @mathiasgua.bsky.social
Quick 🧵 of what's new -
www.biorxiv.org/content/10.1...
Early-life stress induces persistent astrocyte dysfunction associated with fear generalisation
Early-life stress can have lifelong consequences, enhancing stress susceptibility and resulting in behavioural and cognitive deficits. While the effects of early-life stress on neuronal function have ...
www.biorxiv.org
December 10, 2024 at 1:23 AM
SUPER happy that the newest version of our preprint is finally sailing the seas on biorxiv 🤩
Quite a journey where we explored the impact of early-life-stress on fear memory specificity, neuronal circuits in the lateral amygdala and the astrocytes that regulate them 🌟
Quite a journey where we explored the impact of early-life-stress on fear memory specificity, neuronal circuits in the lateral amygdala and the astrocytes that regulate them 🌟
Reposted by Mathias Guayasamin
iBiology is a REMARKABLE and under-utilized resource for learning from some of the pioneers of microscopy--these videos are suitable for undergraduate classes or experts 🧪
🔬 Are you eager to dive into the world of light microscopy & learn from top-notch microscopists about its essential techniques for life science applications? If that sounds exciting, don’t miss out on this free, in-depth iBiology series! 👉 www.ibiology.org/online-biolo...
November 17, 2024 at 12:19 AM
iBiology is a REMARKABLE and under-utilized resource for learning from some of the pioneers of microscopy--these videos are suitable for undergraduate classes or experts 🧪
#FluorescenceFriday
2-photon calcium imaging recording from a magestic astrocyte.
Title: twinkle twinkle little star
2-photon calcium imaging recording from a magestic astrocyte.
Title: twinkle twinkle little star
November 15, 2024 at 4:56 PM
#FluorescenceFriday
2-photon calcium imaging recording from a magestic astrocyte.
Title: twinkle twinkle little star
2-photon calcium imaging recording from a magestic astrocyte.
Title: twinkle twinkle little star