
asst prof @UFNeuroscience @UFMBI
pr-ny-fl
Joined May 2019
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📢📍The Martínez-Rivera Lab focused on (Mal)adaptive & Neurobehavioral Plasticity is opening this summer/fall at @UFNeuroscience @UFMBI. We'll be hiring at all levels, please share! Academia might not be perfect, but it gave me purpose in life. 🙌🏽 💫💎☀️🎉🐊
Martínez-Rivera FJ retweeted
Excited to share the lab's first fiber photometry paper, out now in #JNeurosci 🎉😃🐀🧠💫
This one feels particularly special: it marks a new experimental direction for the lab and reflects so much hard work, troubleshooting, learning, and persistence from an incredible team 🔬✨
Does resource scarcity blunt the maternal brain’s reward system? Not exactly. New in #JNeurosci: Rat mothers with reduced nesting materials show altered VTA dopamine neuron activity around insensitive caregiving and pup separation, but not food reward.
doi.org/10.1523/JNEUROSCI.09…
Martínez-Rivera FJ retweeted
SO EXCITED to share that the Ceceli Cognitive Control Lab is open for business in @MountSinaiPsych at the @IcahnMountSinai!
We’ll study self control across disorders of compulsivity using neuroimaging and real-world data.
Stay tuned for hiring updates + an MS Paint lab logo!
My lab is recruiting a postdoctoral researcher! Interested in astrocyte transcriptional regulation and addiction? We study how astrocytic transcriptional, epigenetic, and chromatin regulation contributes to substance abuse disorders. DM or email me! l-holt-lab.com/
Martínez-Rivera FJ retweeted
Excited to share our new research!
What drives behavior that is in the interest of others, versus selfish behavior? New preclinical findings by MBI researchers suggest it’s both genetic background and individual social preferences that influence brain networks.
Read our latest MBI Research Snapshot: bit.ly/4gEN9zL
Martínez-Rivera FJ retweeted
NEW STUDY! @FreddysonJ @yys_yim @holtlm90, et al. investigated motivational & reinforcing roles of E2F3a in cocaine reward using conditioned place preference & self-administration, w/ behavioral economics & viral-mediated gene manipulation. @molpsychiatry nature.com/articles/s41380-0…
Martínez-Rivera FJ retweeted
Excited to share our latest paper!
Proud to be co-first author with @FreddysonJ on this collaborative study exploring E2F3a as a key regulator of cocaine-induced transcriptional and behavioral plasticity.
Grateful to all of my co-authors and collaborators🙏❤️💎
See this new publication by Susan Yim, Freddyson Martinez-Rivera, and others in @molpsychiatry that describes the role played by the transcription factor E2F3a in nucleus accumbens in the lasting actions of cocaine. @SinaiBrain nature.com/articles/s41380-0…
Martínez-Rivera FJ retweeted
See this new publication by Susan Yim, Freddyson Martinez-Rivera, and others in @molpsychiatry that describes the role played by the transcription factor E2F3a in nucleus accumbens in the lasting actions of cocaine. @SinaiBrain nature.com/articles/s41380-0…
Martínez-Rivera FJ retweeted
Please see my new essay in Curr Opin Neurobiol that outlines exciting new opportunities to directly study the human brain and fundamentally advance basic, translational, and clinical neuroscience. @SinaiBrain @IcahnMountSinai pubmed.ncbi.nlm.nih.gov/4188…
Martínez-Rivera FJ retweeted
Every day, our brains arbitrate between competing memories and motivations.
This ability allows us to flexibly adapt our behavior as the world around us changes.
But how does the brain actually do it? Our new study sheds light on this!
cell.com/current-biology/abs…
Excited to share our new paper out today in @NatureMetabolism! "Hyperglycosylation is a metabolic driver of Alzheimer’s disease"
*We bridged spatial metabolomics (MALDI-MSI glycomics + lipidomics + isotopic pulse-chase tracing) directly to experimental biochemistry (genetic knockdown of glycan enzymes + glucosamine supplementation in AD models) and real-world public health data (EHR analysis showing glucosamine use linked to faster MCI-to-AD progression and worse survival).
**Key takeaway: The AD brain shows conserved hyperglycosylation driven by ramped-up glycan biosynthesis — not just a byproduct, but a causal driver. Reducing it helps cognition; boosting it (e.g., via glucosamine) worsens outcomes.
***We applied cutting-edge spatial tech to functional validation and clinical translation.
Full open-access paper: nature.com/articles/s42255-0…
Huge thanks to the incredible team, collaborators (incl. Matt Gentry, Stefan Prokop, @ji0ngbi0n , Yi Guo, @lichenbiostat, Ralph Deberardinis & others), and the patients/families who make this work possible.
Deadline fast approaching! ACNP Travel Award Applications are open for the ACNP 65th Annual Meeting: January 10-13, 2027, San Diego, California. Deadline to Submit is May 14, 2026, at 5:00 pm Central. tinyurl.com/5bzaz8va #ACNP2027 #travelawards
Our review on Renewal and Reacquisition of Substance-Associated Relapse is now available! frontiersin.org/journals/psy…
Martínez-Rivera FJ retweeted
It was a full house Monday for a Lunch & Learn providing the latest info on MBI Molecular Biology Core upgrades, including new technology, services & expertise. Drs. Eduardo Candelario-Jalil & Freddyson Martínez-Rivera delved into how these resources support neuro research at UF.
Martínez-Rivera FJ retweeted
On Saturday, the MBI welcomed over 30 homeschool students from across Florida for a Brain Awareness Week celebration led by @NcfSfn volunteers.
Students enjoyed art projects, lab tours, Q&A sessions with researchers & bike helmet giveaways.
Learn more: bit.ly/4bxvgBk
Martínez-Rivera FJ retweeted
We modeled sequential antidepressant treatment in chronically stressed mice to probe the molecular basis of treatment resistance (TRD).
🧵 1/ Read my latest work here!
nature.com/articles/s41386-0…
Martínez-Rivera FJ retweeted
OUT NOW! Here, researchers @GylesTrevonn @ericMparise @angelica_atb, et al. provide insight into gene networks contributing to #Antidepressant non-response & highlight a mechanistic framework for modeling antidepressant resistance in preclinical systems👉nature.com/articles/s41386-0…
Martínez-Rivera FJ retweeted
Congratulations to MBI researcher @DrNancyPadilla, who recently received the 2026 @UFMedicine Rising Star Researcher in Basic Science Award! Learn more about her research by watching this short video. @UFNeuroscience
Martínez-Rivera FJ retweeted
Good morning, it’s #GatorNationGivingDay! For the next 24 hours, Gators everywhere are coming together to make an impact.
Thanks to generous donors, gifts made to the MBI today will be matched dollar-for-dollar, up to $3,000, to support our mission: bit.ly/GNGD_MBI
Lo único más poderoso que el odio, es el amor.
The Only Thing More Powerful Than Hate is Love. @sanbenito #AppleMusicHalftime





























