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Petra Mocellin

@petramoce.bsky.social
1.1K followers 828 following 43 posts

Neuroscientist studying midbrain circuits & motivated behaviors 🔎🧠🐭 Neuropeptides | Parental Behavior | Parkinson Disease EMBO postdoctoral fellow PostDoc @UCBerkeley - Lammel Lab PhD @UniBonn - Remy Lab

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Reposted by Petra Mocellin
eartha mae @endoeartha.bsky.social · 28/08/2026
Extremely proud to share @acara333.bsky.social and my new paper, out today in @cp-neuron.bsky.social, where we develop a new fluorescent reporter of neural responses to estrogen! 🔬 paper 📝: www.cell.com/neuron/fullt... addgene page 🧬: www.addgene.org/254753/ #neuroskyence 🧪 1/10
graphical abstract of the manuscript depicting pink estrogen-sensitive neurons with a subset of their nuclei colored in green. These green nuclei represent estrogen receptor dependent neural gene transcription, tracked via the expression of a destabilized GFP with a 2 hour half-life. At top, in green is shown a cartoon of the neural response to estrogen across two estrous cycles, and below there is a cartoon of a mouse implanted with an optic fiber for in vivo imaging.
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Petra Mocellin @petramoce.bsky.social · 25/08/2026
My first #Hypo2026 GRS and GRC organized by @endoeartha.bsky.social @yananw.bsky.social @correalab.bsky.social and @neurrriot.bsky.social was a blast ✨ science 🧪, hikes 🥾, and amazing discussions, suggestions, advice Thrilled to announce I’ll be co-chairing the #Hypo2028 GRS! 🧠 See u there!
Hypothalamus GRC 2026 Group picture
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Petra Mocellin @petramoce.bsky.social · 10/08/2026
Inhibition data is in and I can’t wait to discuss my postdoc project next week at the Hypothalamus GRS & GRC 🤩 If you’re into neuropeptides, parental behavior, and circuits beyond the usual suspects, come check it out! I’ll be giving a talk Saturday 8.50 pm (GRS) and Thursday 11.30 am (GRC)
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Petra Mocellin @petramoce.bsky.social · 18/06/2026
Lammel Lab team building was lit this year 🔥 Laser tag in San Carlos 👾😎
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Petra Mocellin @petramoce.bsky.social · 19/02/2026
Beautiful work on paternal behavior in mice 🐭
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Petra Mocellin @petramoce.bsky.social · 14/02/2026
So excited to be leading this project combining transcriptional reprogramming and cutting-edge optical nanomaterials🧬 🧠 Grateful for the support from @mti-ucb.bsky.social Parkinson's Therapeutics Program as we work to shift the paradigm from dopamine replacement to circuit restoration.
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Petra Mocellin @petramoce.bsky.social · 16/06/2025
A new role for my favorite neuronal population ❤️ Food perception increases the activity of MS glutamatergic neurons, independent of palatability. Amazing work from the @sophiesteculorum.bsky.social lab! www.nature.com/articles/s42...
nature.com
A food-sensitive olfactory circuit drives anticipatory satiety - Nature Metabolism
The authors describe a sensory circuit involving the medial septum (MS), where MS glutamatergic neurons integrate food odours to prime satiety and regulate nutrient intake.
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Reposted by Petra Mocellin
Yulong Li Lab @yulonglilab.bsky.social · 06/06/2025
Excited to share our Science paper on HaloDA1.0-the first genetically encoded far-red dopamine sensor! 🥳It enables powerful multiplex imaging in neurons, brain slices, and live animals.🧠🔬 #GRABsensors #Dopamine www.science.org/doi/10.1126/...
science.org
In vivo multiplex imaging of dynamic neurochemical networks with designed far-red dopamine sensors
Dopamine (DA) plays a crucial role in a variety of brain functions through intricate interactions with other neuromodulators and intracellular signaling pathways. However, studying these complex netwo...
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Petra Mocellin @petramoce.bsky.social · 01/05/2025
Too excited not to share this beauty! #fluorescenceFriday (but a day earlier) TH staining in cyan Virus injection in magenta Zona Incerta is definitely a tough cookie 🍪 but getting there!
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Reposted by Petra Mocellin
Eshaan Iyer @eshaaniyer.bsky.social · 15/04/2025
Thrilled to see this part of my PhD work with @rcbagot.bsky.social now out in @natcomms.nature.com! (1/14) www.nature.com/articles/s41...
nature.com
Reward integration in prefrontal-cortical and ventral-hippocampal nucleus accumbens inputs cooperatively modulates engagement - Nature Communications
Neural circuit mechanisms underlying integrating information about reward across time are not fully understood. Here, the authors show that common outcome-integration signals from the medial...
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Petra Mocellin @petramoce.bsky.social · 27/03/2025
Don’t miss @handejong.bsky.social latest work at #cosyne2025 this Saturday! Featuring wireless fiber photometry in a brand new foraging task 🪤 and discounted future value modeling in different accumbens subregions!
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Petra Mocellin @petramoce.bsky.social · 27/03/2025
The latest work from the Lammel lab is out today! Discover how changes in neurotensin signaling from the NAc Lat to the VTA lead to food devaluation in a mouse model of obesity 🧀🐭 www.nature.com/articles/s41...
nature.com
Changes in neurotensin signalling drive hedonic devaluation in obesity - Nature
In mice, prolonged consumption of a high-fat diet decreases interest in calorie-rich foods as a result of reduced neurotensin expression and signalling, which uncouples hedonic feeding behaviour linke...
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Petra Mocellin @petramoce.bsky.social · 06/03/2025
elifesciences.org/reviewed-pre...
elifesciences.org
Molecular and spatial transcriptomic classification of midbrain dopamine neurons and their alterations in a LRRK2G2019S model of Parkinson’s disease
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Petra Mocellin @petramoce.bsky.social · 15/02/2025
This looks so so cool, cannot wait to read it! 🤯 “Dopaminergic mechanisms of dynamical social specialization in mouse microsocieties” www.biorxiv.org/content/10.1...
biorxiv.org
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Reposted by Petra Mocellin
Matteo Carandini @carandinilab.net · 07/02/2025
Neuropixels and Optogenetics are delighted to announce the birth of Neuropixels Opto Combining high-resolution electrophysiology and optogenetics Today in bioRxiv 960 sites, 28 emitters, 2 colors By Lakunina, @karolinazsocha.bsky.social, Ladd, et al www.biorxiv.org/content/10.1... (1/2)
A Neuropixels Opto probe with 3 blue emitters and 3 red emitters lighting up in succession, with corresponding neural activity in different layers of the cortex.
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Petra Mocellin @petramoce.bsky.social · 29/01/2025
Day 5 at #wcbr2025 – don’t miss our panel! Join us at 4:30 PM for a session fully dedicated to the medial #septum : inputs, outputs, and role in #motivation & #cognition. 🧠 Excited to share the stage with @smikulovic.bsky.social, @eliftuncozcan.bsky.social, and Dave Bortz. 👩‍🔬👨‍🔬
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Petra Mocellin @petramoce.bsky.social · 27/01/2025
Day 3 at #wcbr2025 - lots of dopamine, acetylcholine, dorsal and ventral striatum, midbrain circuits and motivated behaviors. Learning so much from such a diverse group of scientists from single dendrite in vivo 2P imaging to high density recordings and modeling 🧠🤯 the field is moving so fast!
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Petra Mocellin @petramoce.bsky.social · 25/01/2025
Kicked off the first day at #WCBR with an amazing plenary from Suzanne Dickson on #ghrelin, #hunger signaling and its effect on #hypothalamic and #midbrain circuits 🧠 Amazing science in an amazing venue! 🤩
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Petra Mocellin @petramoce.bsky.social · 07/01/2025
Is #Fluorescence Tuesday a thing? Still trying to improve the staining protocol, but love this pic of SN #neurons 🔬🧠🐭
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Petra Mocellin @petramoce.bsky.social · 16/12/2024
Useful resource for 2025 neuro meetings!
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Petra Mocellin @petramoce.bsky.social · 11/12/2024
Thrilled to share that I’ve been awarded an EMBO postdoctoral fellowship to study nigrostriatal axon regeneration and Parkinson’s disease in the Lammel lab at UC Berkeley 🧠🔬 Grateful for this amazing opportunity and excited to join the EMBO fellows community! 🤩
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Petra Mocellin @petramoce.bsky.social · 02/12/2024
Help #neurosky #neuroskyence Are you (or do you know) someone studying the transcription factor Ascl4/Mash4? 🧠 #neurodevelopment #differentiation #neurons #wiring N.b. This is not the same as the acyl CoA synthetase protein ASCL4 I have some questions 💡 Please share! 🙏
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Petra Mocellin @petramoce.bsky.social · 20/11/2024
🦋 Excited to share our newest preprint! 🧠 In this study, we explored the neuronal heterogeneity of the mouse medial septum and diagonal band of Broca using scRNA-Seq + validated our findings by comparing them to a MERFISH dataset from the Allen Brain Atlas. 1/n www.biorxiv.org/content/10.1...
biorxiv.org
Neuronal heterogeneity in the medial septum and diagonal band of Broca: classes and continua
The medial septum and diagonal band of Broca (MSDB) is known for its diverse populations of cholinergic, GABAergic, and glutamatergic neurons, each contributing to various cognitive processes. However...
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Petra Mocellin @petramoce.bsky.social · 15/11/2024
Enjoying #ABRCMS? Interested in zona incerta & VTA? 🧠🐭 Don’t miss @youlef.bsky.social e-poster VB-71 tomorrow at 11 am ET 😁 he’s gonna present our data on mice novelty seeking and exploratory behavior 🗺️🔎
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Petra Mocellin @petramoce.bsky.social · 11/11/2024
I guess it’s time for an introduction✨ I’m a system #neuroscientist at UCBerkeley working on #VTA and #SN in both physiological and pathological conditions #Parkinson Electrophysiologist by training, I use opto, pharmacology, and fiber photometry to study the brain during motivated #behavior 🐭🧠🔎
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Petra Mocellin @petramoce.bsky.social · 24/10/2023
The day has come! I successfully defended my PhD thesis last week 🎓🇩🇪🎊 Thanks to my PhD supervisor, to the committee members, and to all the beautiful people that joined me in this incredible journey ❤️ Now, call me Dr. Mocellin!
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Petra Mocellin @petramoce.bsky.social · 07/09/2023
First post on BlueSky! 💙 I finally took the time to read @neurograce.bsky.social's book and it was a real pleasure! Amazingly written, it spans a century of neuroscience experiments and highlights how other fields have contributed to our understanding of the brain. I really loved it!
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