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Katy Celina Sandoval, PhD

@katycelina.bsky.social

PhD in Neuroscience Behavioural Neuroscience| Neuron-Glia|Optogenetics|Fiber photometry •Knowledge Mobilizer•Mental health advocate•Singer @UCalgary (MSc)'20 + @UBishops (BSc)‘18 Alumna 🇸🇻 🇨🇦 #LatinxinSTEM #1stGen

Posts Replies Media

Katy Celina Sandoval, PhD @katycelina.bsky.social · 12/07/2026

Salud 🍾 to the new friendships,the ability to absorb loads of information and learn quickly, a love and appreciation for good coffee and a good drink, passion for research and non stop questioning. To self growth and self respect. 🎓 Dr. Sandoval 🫡

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Katy Celina Sandoval, PhD @katycelina.bsky.social · 28/11/2025

Thank you so much Derya!

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Katy Celina Sandoval, PhD @katycelina.bsky.social · 27/11/2025

Thank you for everything you did to support me at each milestone. It's truly an honour to have been the first PhD from the Choe Lab 🥂 to many more successful PhD defenses 🍾

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Katy Celina Sandoval, PhD @katycelina.bsky.social · 27/11/2025

I am so proud to announce that I successfully defended my PhD yesterday in front of all the amazing exam members, family and lab family! Being the 1st PhD in the lab wasn't easy but so rewarding! Thank you @katrinachoe.bsky.social for making me love oxytocin so much and for believing in me🥂🥳

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Reposted by Katy Celina Sandoval, PhD

SfN Journals @sfnjournals.bsky.social · 07/08/2025

#SnapshotsinNeuroscience | This image from Sandoval, Rychlik, and Choe shows real-time calcium dynamics of astrocytes and oxytocin neurons in the mouse paraventricular nucleus of the hypothalamus. Image credit: Katrina Choe blog.eneuro.org/2025/07/snapshots_m…

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Katy Celina Sandoval, PhD @katycelina.bsky.social · 28/06/2025

Thank you for the highlight! 🐭🧠

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Reposted by Katy Celina Sandoval, PhD

SfN Journals @sfnjournals.bsky.social · 27/06/2025

#eNeuro: Using fiber photometry in mice, @katycelina.bsky.social‬, Rychlik, and @katrinachoe.bsky.social‬ show oxytocin neurons and astrocytes respond to social and stress cues differently depending on the situation and sex of the animal. @mcmastermedia.bsky.social‬ vist.ly/3n7y6tc

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Reposted by Katy Celina Sandoval, PhD

Dr. Dawn Bowdish @msmacrophage.bsky.social · 16/05/2025

I'm re-amplifying this piece by my MD/PhD student @kevinterleukin.bsky.social because I'm hearing of more & more of my colleagues losing their sex/gender research funding (& I'm about to lose my foreign subaward). Kevin does a great job explaining why this is essential research (not woke ideology).

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Katy Celina Sandoval, PhD @katycelina.bsky.social · 16/05/2025

while both cell types in both sexes were robustly activated during active stress responses (escape) to a looming shadow test. These findings highlight how sex, context, and behavioural strategies shape brain activity to support adaptive responses. To read more: doi.org/10.1523/ENEU...

doi.org

Calcium Dynamics in Hypothalamic Paraventricular Oxytocin Neurons and Astrocytes Associated with Social and Stress Stimuli

Activation of hypothalamic paraventricular oxytocin (OXTPVN) neurons by social or stress stimuli triggers OXT release to promote social investigation and buffer adverse effects of stress, respectively...

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Katy Celina Sandoval, PhD @katycelina.bsky.social · 16/05/2025

In our latest study, we used dual-colour fiber photometry to simultaneously track oxytocin neurons and astrocytes in the PVN of the hypothalamus of freely behaving mice. We found that female mice showed stronger oxytocin neuron activity during social interaction with unfamiliar female mice

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Katy Celina Sandoval, PhD @katycelina.bsky.social · 16/05/2025

I am pleased to share with all of you my first PhD published work that was done in collaboration with Joshua Rychlik & @katrinachoe.bsky.social entitled "Calcium Dynamics in Hypothalamic Paraventricular Oxytocin Neurons and Astrocytes Associated with Social and Stress Stimuli"

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