Sign in

Jason Shepherd

@jasonsynaptic.bsky.social
7.5K followers 1.5K following 1.1K posts

🇿🇦🇳🇿🇺🇸Neuroscientist/amateur virologist. Professor and Director of the Molecular Biology Graduate Program, University of Utah. Molecular mechanisms of memory, repurposed transposons, and virus-like intercellular signaling. Personal views. www.shepherdlab.org

PostsRepliesMedia
Jason Shepherd @jasonsynaptic.bsky.social · 29/09/2026
Fall in the hood!
3381
Jason Shepherd @jasonsynaptic.bsky.social · 25/09/2026
Another wild story of transposons doing transposon things..except this a conserved primate GENE important for protein translation in neurons that seems to have “jumped” into a human specific virus 🤯.
190
Jason Shepherd @jasonsynaptic.bsky.social · 24/09/2026
Took a covid booster plus flu shot yesterday. Have been taking Novavax when I can find it but no other option this time…forgot how I react to the mRNA vaccine. My immune system went wrrrrr 😅
352
Jason Shepherd @jasonsynaptic.bsky.social · 24/09/2026
“Direct cell-to-cell transmission of retrotransposons” The line between viruses, retrotransposons, and domesticated retroviruses continues to blur! www.cell.com/cell/fulltex...
cell.com
0173
Reposted by Jason Shepherd
Mark Histed @markhisted.org · 23/09/2026
Can confirm (see 🧵 ). But let me share some optimism. A NIH colleague said today that against all odds, NIH has been…winning. “We made this EO a necessity. We fought hard. We threw sand in all the gears. All the lowdown ways of blocking grants failed to produce the results Vought et al wanted.”
217876
Jason Shepherd @jasonsynaptic.bsky.social · 23/09/2026
Congrats @czimmerman.bsky.social! 🙌🏼
170
Jason Shepherd @jasonsynaptic.bsky.social · 18/09/2026
Your moment of zen as you go into the weekend! Milford Sound, New Zealand 🇳🇿 📷
1180
Jason Shepherd @jasonsynaptic.bsky.social · 10/09/2026
Stoked to be heading to Baltimore this weekend to see the Springboks play the All Blacks! Will also be giving a seminar at Johns Hopkins on Monday! Thanks @ashi-w.bsky.social for hosting! publichealth.jhu.edu/events/2026/...
publichealth.jhu.edu
BMB Seminar | The Role of Endogenous Retroviruses in Brain Health and Disease | Johns Hopkins Bloomberg School of Public Health
The Biochemistry and Molecular Biology Department welcomes Jason Shepherd of the University of Utah to our seminar series.
170
Jason Shepherd @jasonsynaptic.bsky.social · 06/09/2026
I need…and probably everyone else needs..more time in places with no cell service! Like here in Fiordland, New Zealand 🇳🇿 📷
2493
Jason Shepherd @jasonsynaptic.bsky.social · 31/08/2026
Have neglected my photography the past year. Finally had a moment to breathe and go through some pics from our Milford Sound hike in New Zealand last year. 📷 🏞️
1461
Jason Shepherd @jasonsynaptic.bsky.social · 28/08/2026
My department is hiring! Come join a vibrant and thriving neuroscience group. New faculty are exceptionally well supported and we offer a very collaborative/collegial environment. employment.utah.edu/salt-lake-ci...
employment.utah.edu
Founded in 1850, The University of Utah is the flagship institution of higher learning in Utah, and offers over 100 undergraduate and more than 90 graduate degree programs to over 30,000 students. University of Utah Jobs
14440
Jason Shepherd @jasonsynaptic.bsky.social · 28/08/2026
NoA 🎉 day! This job is not for the faint of heart. Got to take the wins where you can. Thanks to my lab for their perseverance and to the NIH staff trying their best to keep things going.
2690
Jason Shepherd @jasonsynaptic.bsky.social · 12/08/2026
Having serious FOMO of the solar eclipse today. It’s a magical experience. Here’s a shot I took in Idaho when we got to experience totality in the US!
0180
Jason Shepherd @jasonsynaptic.bsky.social · 11/08/2026
Another fun fly Arc paper with the @thecaronlab.bsky.social! Turns out fly Arc mutants Sleep a ton. Like a LOT. See Sophie’s entertaining thread below and the preprint here: www.biorxiv.org/content/10.6...
biorxiv.org
Arc capsid signaling between serotonergic and dopaminergic neurons sets sleep depth in Drosophila
Arc genes evolved from Ty3 retrotransposons and encode proteins that self-assemble into virus-like capsids that package and transfer RNA between cells. This capsid-forming property may mediate a form ...
0157
Jason Shepherd @jasonsynaptic.bsky.social · 07/08/2026
Let me know if you’re interested in getting involved with IBRO! Now, more than ever, we need to find ways of strengthening international relationships and collaborations..and supporting neuroscience in under-resourced communities across the globe. 🧠 🧪 ibro.org/ibro-2026-el...
ibro.org
Call for nominations: Join IBRO in electing new members of its five Regional Committees
Join IBRO in electing new members of its five Regional Committees. IBRO's Governing Council can submit their proposal by 15 Aug 2026.
0104
Reposted by Jason Shepherd
Tomás Ryan @tjryan.bsky.social · 04/08/2026
Announcing #engramsensembles '27, to be held at @tcddublin next May. Registration and abstract submission will open in autumn 2026.
03017
Jason Shepherd @jasonsynaptic.bsky.social · 24/07/2026
Can you imagine the shitstorm if this had been done by a democratic president?! This is not a functioning Republic.
071
Jason Shepherd @jasonsynaptic.bsky.social · 24/07/2026
This is exactly how I feel and exactly what needs to be said and done about this govt BS! “The Trump administration hates academic science funding, full stop.” www.science.org/content/blog...
science.org
The Assault On Science Funding Continues
085
Jason Shepherd @jasonsynaptic.bsky.social · 24/07/2026
Our paper is out in this week's issue of Cell! Personally, I think our cover submission by @drawimpacts.bsky.social was more exciting 😅 www.cell.com/cell/fulltex...
3286
Jason Shepherd @jasonsynaptic.bsky.social · 23/07/2026
WORD
031
Jason Shepherd @jasonsynaptic.bsky.social · 09/07/2026
“Dolomiti, ti amo"
0120
Jason Shepherd @jasonsynaptic.bsky.social · 06/07/2026
The @ibroorg.bsky.social World Congress program committee has finalized a 🔥 keynote and special lecture line up. Stay tuned! In the meantime, symposia submissions are still open. Join us in Cape Town next year for this unique global neuroscience meeting! ibroworldcongress.org/open-calls/c...
2113
Jason Shepherd @jasonsynaptic.bsky.social · 03/07/2026
Quick stop in BOS on our way to Barcelona!
071
Jason Shepherd @jasonsynaptic.bsky.social · 03/07/2026
Quick stop in BOS on our way to Barcelona!
000
Jason Shepherd @jasonsynaptic.bsky.social · 03/07/2026
thesciverse.org/scientists-s...
thesciverse.org
Scientists spent 30 years trying to find what carries Alzheimer's from one brain cell to the next. A new study just identified it, and it turns out to be a protein the brain uses to carry memories - t...
Scientists have known for 30 years that Alzheimer's disease spreads through the brain like an infection, consuming one region, then moving to the next, following the brain's own network.What they did ...
1193
Jason Shepherd @jasonsynaptic.bsky.social · 02/07/2026
Congrats @czimmerman.bsky.social!! Just 1 of many to come I’m sure.
130
Jason Shepherd @jasonsynaptic.bsky.social · 01/07/2026
Talked to staff in Senator Mike Lee’s office today about the OMB proposals that will change how grant decisions will be made. Thanks to @standupforscience.net for organizing the meeting. We all need to be doing what we can right now, in addition to making comments on the official online portal.
090
Jason Shepherd @jasonsynaptic.bsky.social · 29/06/2026
Very excited for our new paper, now out in @cellcellpress.bsky.social! /🧵 The protein Tau forms intracellular toxic tangles in neurons in Alzheimer’s disease and Tauopathies. Tau pathology slowly spreads from cell-to-cell but the mechanisms are not clear /1 authors.elsevier.com/sd/article/S...
authors.elsevier.com
Arc mediates intercellular tau transmission via extracellular vesicles
Tau pathology spreads cell to cell, but the mechanisms of intercellular tau transmission remain unclear. We find that the neuronal gene Arc is critica…
814453
Jason Shepherd @jasonsynaptic.bsky.social · 29/06/2026
Nature is drunk. Snow June 29 2026! We will take it though.
070
Jason Shepherd @jasonsynaptic.bsky.social · 27/06/2026
I am still waiting on whether a 3% scored R01 will be funded at the NIA (reviewed in Jan) and even the NoA for my funded R01 non-competitive renewal is a month late 😭. And this is preclinical science that shouldn’t have any “dirty” words!
2217
Jason Shepherd @jasonsynaptic.bsky.social · 26/06/2026
I’m fine with the QED experiment. One can choose to ignore the rankings and just move on but some of the discussion that’s come out of this has been really good. Read this article as an example.
1100
Jason Shepherd @jasonsynaptic.bsky.social · 26/06/2026
And NIH study section (Neuronal Communications) is a wrap! Despite all the "noise" going on, I'm struck by the earnest dedication and hard work put into all the reviews by the panel. Now....beer and world cup soccer time!
0110
Jason Shepherd @jasonsynaptic.bsky.social · 24/06/2026
TMW you realize the @hhmi-science.bsky.social is investing a billion dollars in the obscure model organism you developed from pet shop fish! 🙌🏼 Adam Douglass @utah.edu @uuhsresearch.bsky.social
1113
Reposted by Jason Shepherd
Mark Histed @markhisted.org · 17/06/2026
The Battle over the Constitution Has Spread to American Science. I'm out in the @theatlantic.com today about the new OMB proposed rule. It's just the longtime agenda of the the Supreme Court. US science and cancer cures now all depend on us picking up a fight with the Roberts Court.
theatlantic.com
The Unitary Executive Takes Over New Territory
The Trump administration’s theory of how the federal government should work is a threat to American science.
11325169
Jason Shepherd @jasonsynaptic.bsky.social · 16/06/2026
Goaaalll…go NZ!
static.klipy.com
New Zealand New Zealander
ALT: New Zealand New Zealander
020
Jason Shepherd @jasonsynaptic.bsky.social · 15/06/2026
Had a wonderful few days at the McKnight Foundation annual neuroscience meeting! Amazing science, warm and welcoming community…in an inspiring setting in Aspen. With the world feeling like it’s burning around us..building community is the only way we move forward.
3170
Reposted by Jason Shepherd
Jeremy Berg @jeremymberg.bsky.social · 09/06/2026
My quote of the day Bethesda Declaration (June 9, 2025)
For staff across the National Institutes of Health (NIH), we dissent to Administration policies that undermine the NIH mission, waste public resources, and harm the health of Americans and people across the globe. Keeping NIH at the forefront of biomedical research requires our stalwart commitment to continuous improvement. But the life-and-death nature of our work demands that changes be thoughtful and vetted. We are compelled to speak up when our leadership prioritizes political momentum over human safety and faithful stewardship of public resources.
212542
Reposted by Jason Shepherd
I-75 Scientist @flscitriguy.bsky.social · 08/06/2026
RFI: Proposal to Cap the Number of Simultaneous Research Project Grants per Principal Investigator to Support More Researchers and Maximize Scientific Productivity and Innovation grants.nih.gov/grants/guide...
grants.nih.gov
NOT-OD-26-086: Request for Information: Proposal to Cap the Number of Simultaneous Research Project Grants per Principal Investigator to Support More Researchers and Maximize Scientific Productivity a...
NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: Request for Information: Proposal to Cap the Number of Simultaneous Research Project Grants per Principal Investigator ...
53336
Reposted by Jason Shepherd
Colette Delawalla, PhD @cdelawalla.bsky.social · 04/06/2026
ALRIGHT EVERYONE HERE IS THE OFFICIAL SUFS GUIDE TO LEAVING PUBLIC COMMENTS ON THE OMB-2026-0034 PROPOSED RULE: www.standupforscience.foundation/policy-and-advocacy/the-sufs-guide-to-writing-public-comments (share with all your friends!)
standupforscience.foundation
The SUFS Guide to Writing Public Comments — Your Site Title
Written by: Cole Donovan, Director of Policy and Advocacy and Colette Delawalla, PhD, CEO
3159125
Reposted by Jason Shepherd
Mark Peifer (He, him) @peiferlabunc.bsky.social · 03/06/2026
I have often been critical of the leadership @aaas.org but they just took action on the new OMB rules that will politicize science, speaking out and notifying members. I hope all take the time to follow their advice, contact Congress, and most important, post a comment www.aaas.org/news/aaas-st...
Dear Mark,

Yesterday, AAAS spoke out against a damaging proposal from the U.S. Office of Management and Budget (OMB) that would jeopardize future scientific discoveries and breakthroughs by bringing politics into the heart of scientific evaluation and priority setting and rejecting the will of Congress and the American people.

The proposed rule forgets what has made America the world’s R&D leader for generations. Among many bad policy choices, the most damaging is that it would prioritize politics over merit by enabling OMB budget analysts to override scientific peer review to decide what science is worth funding. If this rule is implemented, Americans' hopes for future cures, national security, and economic strength will rely on the scientific sensibilities of the Director of OMB, the nation’s chief bureaucrat. We must speak out against this with all of our voices.

You can find my full statement here and an editorial from Science Editor-in-Chief Holden Thorp here. For further details on the proposed rule, read the ScienceInsider article.

The proposed rule is laid out over more than 400 pages. The public comment period is open until July 13 and it will take some time to fully assess the rule’s possible impacts. AAAS is already working to prepare a thoughtful, strong, and strategic official comment to OMB. In addition, we are putting all of our resources to work in public and behind the scenes to push back on this outrageous overreach.

The process for rulemaking gives all of us an opportunity to comment in the regulatory process and speak up in the political process. Here are three valuable actions for you to take:

Let your representatives in Congress know that this proposed rule is bad for everyone – not just scientists. Tell them your concerns about putting political appointees who lack the necessary expertise in charge of science and research funding decisions and the potential impact on our hopes for future cures, national security, and American jobs.
Respo…
0228122
Reposted by Jason Shepherd
Don Moynihan @donmoyn.bsky.social · 01/06/2026
A proposed Trump policy would put Russ Vought in charge of American science. Its an example of the slow creep of politicization into processes that both parties traditionally understood as needing nonpartisan and expert guidance. What can you do about it? 🧵 donmoynihan.substack.com/p/the-creep-...
donmoynihan.substack.com
The Creep of Politicization
A new assault on science highlights a broader pattern
621119493
Jason Shepherd @jasonsynaptic.bsky.social · 01/06/2026
Sometimes..you just need to have a beer on the deck after the storm clears…
1190
Jason Shepherd @jasonsynaptic.bsky.social · 28/05/2026
What in the fresh hell is this?! Why even have study sections or scores or peer review? 😫
041
Jason Shepherd @jasonsynaptic.bsky.social · 24/05/2026
Yup. Sitting on a 3% scored R01 since Jan and I still don’t know if it’s getting funded. This is just not sustainable. How is the NIH going to spend its mandated budget?!
815556
Jason Shepherd @jasonsynaptic.bsky.social · 22/05/2026
Had an amazing time visiting UW pharmacology, @uw-nbio.bsky.social , and the @alleninstitute.org this week! Gorgeous campus and had a lot of fun science convos with faculty and trainees.
070
Reposted by Jason Shepherd
UW Neurobiology & Biophysics @uw-nbio.bsky.social · 20/05/2026
🧠 Big week at NBIO! Two great talks this Thursday: 📌 Dr. Jason Shepherd (@jasonsynaptic.bsky.social) — "Virus-Like Mechanisms of Intercellular Synaptic Plasticity" 📌 Trainee Research in Progress: Ryan Ressmeyer (Horwitz Lab) — "Perisaccadic Gating at the Macaque Retinogeniculate Synapse"
052
Jason Shepherd @jasonsynaptic.bsky.social · 18/05/2026
Excited to be spending this week at the #UniversityofWashington! 2 seminars - Dept of Pharmacology (Tues 19) and Neurobiology & biophysics (Thurs 21) #seattle 🧠
0141
Jason Shepherd @jasonsynaptic.bsky.social · 14/05/2026
Hello NYC! See you in a bit @melcregor.bsky.social and @sinaibrain.bsky.social!
040
Jason Shepherd @jasonsynaptic.bsky.social · 13/05/2026
“The NIMH council, which can have up to 18 voting members, currently has only three—all researchers—and their appointments end on 30 September. That means Delano and Cohen could be “relatively influential..” 🫠
243
Jason Shepherd @jasonsynaptic.bsky.social · 05/05/2026
Congrats to Andrew Butts in the @thecaronlab.bsky.social lab for both defending his PhD and for fully taking advantage of #mayfourth! #starwars 🧠 🧪
0163