Marcos Aranda

Marcos Aranda

@marcosaranda.bsky.social

Studying effects of light on physiology and behavior | Postdoc at the Schmidt lab | Northwestern University

366 Followers 481 Following 27 Posts Joined Aug 2023
6 days ago
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Bird season is starting in Chicago 🪶🐦‍⬛🪺

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2 weeks ago
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Achucarro International Glia School is back! #AIGS26

Registration period is already open, and the final programme accessible.

Looking forward to this edition in #Plentzia

www.achucarro.org/gl...

#astrocytes #microglia #oligodendrocytes #glialcells

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2 weeks ago
Light tunes long-term threat avoidance behavior in male mice - Nature Communications In this study, the authors describe how light shapes a long-term threat avoidance behavior via a visual circuit linking the eye with the limbic system in mice.

My second paper as a postdoc in the lab of @tiffmschmidt.bsky.social is out!

In this work, we developed a novel behavioral paradigm to study how light shapes long-term threat avoidance 🐭🦅 through a retina–thalamic–limbic circuit 👁️🧠

Excited to share it! 🙌🏼

👉🏼 www.nature.com/articles/s41...

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2 months ago

Really cool! Congrats Ruchi, Samer and all the team!!!

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2 months ago
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ipRGC properties prevent light from shifting the SCN clock during daytime Nature - The inability of intrinsically photosensitive retinal ganglion cells to shift the circadian clock in the suprachiasmatic nucleus during daytime is caused by light-dependent depolarization...

A new paper from my lab. I will have a full description soon. rdcu.be/eX1Ld

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2 months ago
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Finally out! We studied the retinas of the longest-living vertebrate, the Greenland shark, and found that the retinas remain remarkably healthy in animals around 150 years old. What is the mechanism? It may be a highly efficient DNA repair system. Enjoy!
www.nature.com/articles/s41...

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2 months ago

Fantastic symposium at an incredible institute!✨

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2 months ago
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My job: studying how light shapes behavior.
His job: saving the world.

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3 months ago
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Southwestern Vision Science Summit (SVSS)

Want to hear about amazing research in ophthalmology? Register for the first inaugural Southwestern Vision Science Summit coming March 28, 2026! events.utsouthwestern.edu/event/southw...

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3 months ago
Banner and confirmed speakers for Senses in Motion 2026 conference

One week left to submit an abstract to Senses in Motion 2026!

It's bound to be an exciting meeting with an excellent line-up of speakers! Please join us!

More details and registration link at 👇
sensesinmotion.org

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2 months ago

Really looking forward to it! 🔜🇪🇸

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3 months ago

Known as “Tero”. One of most elegant and territorial birds in my hometown 🇦🇷

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4 months ago
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Efficient mixed representation of active and passive motion in the mouse visual thalamus during natural behaviour During natural behaviour, changes in the visual scene are largely driven by the subject’s own movements, which can be actively generated (e.g., walking) or passively imposed by external forces (e.g., ...

Delighted to share our latest preprint. It's been a long time coming. Thanks to all the authors for their unique contribution and for for their patience. We show how the visual thalamus deals with active and passive head motion in freely moving animals: www.biorxiv.org/content/10.1...

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4 months ago

This is really cool, congrats!

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4 months ago
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Thank you for the invitation @weillcornell.bsky.social! Fantastic discussions and inspiring colleagues!

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4 months ago
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We’re hiring! Join the Sivyer Lab at The University of Sydney as a Postdoctoral Research Fellow in Neurodegeneration within the Snow Vision Accelerator, a $50M initiative tackling glaucoma and optic nerve disease. iPSCs, electrophysiology, drug discovery, and gene therapy.

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4 months ago
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Zebrafish use spectral information to suppress the visual background Vertebrate eyes first evolved in water, where spectral content rapidly fades with distance. Zebrafish exploit this loss by antagonizing cone signals to suppress the background, pointing to distance es...

Excited to share our paper now published in Cell!
'Zebrafish use spectral information to suppress the visual background'

Huge thanks to @neurofishh.bsky.social & @teuler.bsky.social

@cellpress.bsky.social @cp-cell.bsky.social

👇🏻
www.cell.com/cell/fulltex...

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4 months ago

Yay! Congrats Chiara and team 🎉

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1 year ago

Two new papers to... er... skeet? Blurt? Bluert?

First is that our paper on the transcription factor Adnp and the ChAHP chromatin remodelling complex is now out.
www.pnas.org/doi/10.1073/...

I already blurted the paper here: bsky.app/profile/pier...

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4 months ago
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Retinal glia regulate development of the circadian photoentrainment circuit Circadian photoentrainment depends on intrinsically photosensitive retinal ganglion cells (ipRGCs), which convey environmental light information to th…

Our latest paper is out! While the circadian photoentrainment circuit has been extensively studied, the mechanisms regulating its development remain poorly understood. Here we show that retinal Müller glia play a key role in this process. Check it out! www.sciencedirect.com/science/arti...

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4 months ago
Dark purple poster displaying an art competition with a prize of £250. 
Competition is for art displaying the lab's research on sleep & mental health. Poster contains images of a person with EEG on their face and an image of a mouse dreaming of a maze and replaying memories. 
Deadline is stated as 31st December. There is a QR code and a website link at the bottom of the poster.

£250 Visual Art Prize Competition!
We're looking for art work to represent our research on sleep & mental health. Deadline: 31st December!

More info here: www.sleepengineering.co.uk/art-call-out

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4 months ago
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Circadian variation in MGMT promoter methylation and expression predicts sensitivity to temozolomide in glioblastoma - Journal of Neuro-Oncology Purpose Recent studies show that glioblastoma (GBM) is more sensitive to temozolomide (TMZ) in the morning. In cells, inhibiting O6-Methylguanine-DNA-Methyltransferase (MGMT) abolished time-dependent ...

#Circadian #medicine tests if treatment timing can improve patient outcomes. This paper by @mariafelicita.bsky.social @oliviawalch.bsky.social et al considers #chronodiagnostics ...how the outcome of a standard test for glioblastoma differs with time of biopsy. link.springer.com/article/10.1...

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4 months ago
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For your enjoyment (by @jagarikin)

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4 months ago
Faculty Position in Anatomy, Physiology & Cell Biology
We are seeking an outstanding integrative physiologist (broadly
defined) for the position of Assistant Professor (tenure track) to join
our faculty in the Department of Anatomy, Physiology, and Cell
Biology in the School of Veterinary Medicine (SVM), UC Davis. Our
department is a highly integrated group of faculty studying molecular,
cellular, physiological, and pathophysiological mechanisms of health
and disease. The candidate should have an active research program
that focuses on interdisciplinary physiology research using state-of-
the-art approaches. We welcome research which diversifies our
expertise, and/or that which complements existing strengths in
gastrointestinal, neuroimmune, musculoskeletal, cardiorespiratory
systems as well as developmental biology. Candidates are expected
to expand access to education and provide opportunities in research
for students, trainees, and the community across various life and
professional experiences.
• Candidates must possess a PhD and postdoctoral experience in
physiology or a related field.
• Aptitude/experience in teaching broad-based physiology or
functional anatomy to professional or graduate students.
• Experience with grant writing.
• Excellent interpersonal and communication
skills, and a demonstrated ability to work
cooperatively and collegially within a diverse
community. Sunrise at UC Davis School of Veterinary Medicine Sunrise in Davis CA

Our department @ucdavisvetmed.bsky.social @ucdavis.bsky.social is hiring! We welcome research that diversifies or complements existing strengths in gastrointestinal, neuroimmune, musculoskeletal, cardiorespiratory
systems and/or developmental biology. @socdevbio.bsky.social @ascbiology.bsky.social

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4 months ago
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Nice to find my research images decorating the department offices 🙂

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5 months ago
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Vision scientist Teresa Puthussery receives MacArthur ‘genius’ award - Berkeley News Puthussery’s discoveries about the retina are paving the way for new treatments for eye disease and vision loss

Teresa Puthussery, a UC Berkeley vision scientist whose insights into the retina could one day help those with vision loss regain their sight, has been named a 2025 MacArthur “genius” Fellow. news.berkeley.edu/2025/10/08/v...

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5 months ago
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Introducing CellTransformer, a new AI tool developed with UCSF that makes it easier to explore massive neuroscience datasets and identify important subregions of the brain. 🧵

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5 months ago
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The Rod Bipolar Cell Pathway Contributes To Surround Responses In OFF Retinal Ganglion Cells Sensory neurons can be influenced by stimuli beyond their receptive field center, yet the mechanisms underlying this surround modulation remain poorly understood. In the retina, many OFF ganglion cell...

🚨 New preprint out from our lab!
📄 The Rod Bipolar Cell Pathway Contributes to Surround Responses in OFF Retinal Ganglion Cells
👉 www.biorxiv.org/content/10.1...

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5 months ago

Finally, we demonstrate that these genetic programs are essential for ipRGC-driven behaviors, linking molecular identity to function ☀️/🌛👁️🌈

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5 months ago

BRN3B also shapes the morphological features that distinguish ipRGC subtypes!

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