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@spiffyscientist.bsky.social
269 followers 209 following 118 posts

stem cell biology nerd. trans menace 🏳️‍⚧️. will do anything to pet a dog. BayFC. (they/them) all views mine, don’t reflect academic/professional institutions, etc

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Magnus Lehnsherr @i-magnus.bsky.social · 03/10/2026
The #Valkyries calling a huddle to take a deep breath was one of the more powerful Bay Area sports moments I've witnessed. #GSV
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John Timmer @jtimmer.bsky.social · 23/09/2026
So, I turned my chaotic little developmental biology rant into an actual article that is hopefully somewhat less chaotic and a bit more approachable.
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C @spiffyscientist.bsky.social · 23/09/2026
Also big fan of none gender left beef
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C @spiffyscientist.bsky.social · 23/09/2026
This is a fabulous question! And we didn’t spend much time on glia (sorry glial biologists), but yes, if our hypothesis holds, then these parallel progenitor streams could generate parallel populations of glia.
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C @spiffyscientist.bsky.social · 22/09/2026
Hopefully this context helps - in this quote, Prof. Loh is referencing a common neural progenitor, aka the concept of a cell that is lineage restricted to the brain, but can generate all anatomical regions.
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C @spiffyscientist.bsky.social · 22/09/2026
Thank you for reading and nicely summarizing! One little detail - we didn’t actually “trace” in any species other than mouse. We analyzed snapshot data from the other species you see to compare their profile to the mouse. Would be very excited to trace in more species for more details of brain dev!
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Angelo Iulianella @aineurolab.bsky.social · 22/09/2026
Good 🧵 on recent fate mapping of mid-hindbrain boundaries using seperate lineage tracers, with authors concluding that we have two separately specified CNS regions. But we knew this for a couple decades now, and there is much more finessing of brain specification than simply “two brains”.
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Arula Ratnakar @arula-ratnakar.bsky.social · 22/03/2026
Thread 19: Initial Embryonic Brain Structures Part II. Again, largely from the Bianchi textbook. (1/n)
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John Timmer @jtimmer.bsky.social · 22/09/2026
Ok, this "there are two separate brains" thing appears to be making the rounds, and I want to be absolutely clear: this is a press office overhyping some perfectly reasonable science that won't come as a surprise to most developmental biologists.
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C @spiffyscientist.bsky.social · 22/09/2026
I graduated from the lab so can’t speak to all the ongoing collaborations - but we are active members of @isscr.org! While not a formal collaboration per se, some highly relevant work is also happening in the Kirkeby group in Europe and the Loh lab has definitely been in touch.
biorxiv.org
Mapping early patterning events in human neural development using an in-vitro microfluidic stem cell model
Stem cell models can provide insights into human brain development at embryonic stages which are normally inaccessible. We previously developed the Microfluidic Stem Cell Regionalisation (MiSTR) model...
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C @spiffyscientist.bsky.social · 22/09/2026
Sent you a message! I think you’re referring to how the neurons responsible for facial movements (like our mouths) are derived from the hindbrain, and have a different developmental origin than those connected to language *processing*
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C @spiffyscientist.bsky.social · 22/09/2026
Feel free to send/ask questions about the paper, grad school, start-up life, etc
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C @spiffyscientist.bsky.social · 22/09/2026
Thanks for the kind words 🥰
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C @spiffyscientist.bsky.social · 21/09/2026
urldefense.com/v3/__https:/... :)
urldefense.com
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C @spiffyscientist.bsky.social · 20/09/2026
And yes, this very fun very cool research was led by, among our many other identities, a trans PhD student and a Muslim MD/PhD student
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C @spiffyscientist.bsky.social · 20/09/2026
For those who’ve asked why the author list swapped first authors between preprint and publication, Rayyan and I have always been co-first, and I offered the swap as a thank you to him for carrying the work across the finish line through the peer review/revision process :)
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C @spiffyscientist.bsky.social · 20/09/2026
I won’t lie, it’s a bit overwhelming to see the work hyperbolized by many press outlets, including the university. We did not discover a new organ, or that you have two consciousnesses, etc! I’m excited for the general positive recognition, (especially the coverage from the Chronicle by Jack Lee)
sfchronicle.com
The brain is a single organ. But it may not start that way, study suggests
A Stanford-led study challenges the idea that the brain develops from one common pool of early cells — and could help researchers model diseases such as ALS.
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C @spiffyscientist.bsky.social · 20/09/2026
Emerging from public social hiatus to celebrate my primary grad school research formally being published on Friday!!
nature.com
Two parallel neural ectoderm progenitors contribute to the developing brain
Nature Neuroscience - This study shows that the brain arises from two distinct progenitors: one forms the forebrain and midbrain, whereas the other generates the hindbrain. These insights enable...
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C @spiffyscientist.bsky.social · 17/08/2026
this photo goes so hard 😎
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Southern Sylvs 🍉 she/her @southernsylvs.bsky.social · 19/07/2026
Cabo Verde is the team of the tournament to me
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C @spiffyscientist.bsky.social · 08/07/2026
for my stem cell folks, hmu if you are also at #isscr2026 ! excited to hear about all the amazing progress in the field this week
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Shameless Reign Stan @watmildon.bsky.social · 03/05/2026
Once again, chaos league delivers. All teams are terrible. All teams are wonderful. Bless and love the circle! watmildon.github.io/NWSLParityCh... #nwsl
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Jason Anderson @jasondcsoccer.bsky.social · 17/03/2026
NWSL fans who came in after the pandemic: this really happened. This game counted in the standings.
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cata @catabush.com · 25/02/2026
Atlanta NWSL will be making more money per year from their shirt deal ($4m) than the current salary cap allows teams to spend ($3.5m + revenue share)
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Southern Sylvs 🍉 she/her @southernsylvs.bsky.social · 29/12/2025
Hey, quick question. Da hell?
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Annelise @mxannelise.bsky.social · 25/12/2025
This would do wonders for my morale
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Mission Local @missionlocal.org · 21/12/2025
Waymo has halted service in San Francisco after numerous videos & images showed its autonomous cars snarling traffic during the blackout. With traffic lights down, Waymos across the city stopped dead in their tracks at intersections. missionlocal.org/2025/12/sf-w...
missionlocal.org
Waymo halts service during massive S.F. blackout after causing traffic jams
Waymo stopped its service across San Francisco on Saturday after numerous autonomous vehicles caused traffic jams in the city.
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Moxie Six @moxiesix.bsky.social · 20/12/2025
Bonkers day in San Francisco. 1. HUGE power outage across the city. 2. The Palace Hotel has been evacuated and part of Market St. shut down after reports of shots fired and a hostage negotiator team is on site. 3. A car is fully engulfed in the Stonestown mall parking lot.
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depths of wikipedia @depthsofwikipedia.bsky.social · 15/12/2025
as of this week it has officially been 18 years since an anonymous user uploaded this bizarre image of an opossum cornered in a baby grand piano to Wikimedia Commons
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emma zhou @emmz.bsky.social · 25/10/2024
does everybody know about my favorite website, the embroidery tips page that forgot to close its <h3> tags
web.archive.org
Embroidery Trouble Shooting Page
Embroidery Trouble Shooting Answers to all your questions about Embroidery problems
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C @spiffyscientist.bsky.social · 03/12/2025
So cool! I’m working on my first big piece right now and wish I had taken progress pics
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Mike Kalvas @mkalvas.com · 27/11/2025
Feel like I’m in a fever dream watching the Toys R Us giraffe rocking out to Turn Down for What in the Macy’s parade
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Dana @myritemind.bsky.social · 23/11/2025
The detail from the game last night I am gonna remember. Both @spiritsquadron.bsky.social and @cloud9goth.bsky.social brought and hung Trans Lives Matter banners in front of their sections. Well done, friends!
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Caræsten 🇵🇸 @cara.city · 20/11/2025
don't feel great about TDoR right now; given how many cis people want us dead, it feels like public grieving gives them fodder to celebrate
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Phobia @phobia.bsky.social · 20/11/2025
This lil drawing I made for the first TDOR I was out for. So many complicated feelings with today. Hoping you are alive and well today.
A woman in a trans flag holds a small candle
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Katie Mack @astrokatie.com · 20/11/2025
Can’t believe the whole country has to suffer through the return of Dickensian childhood diseases because the worst, most ignorant attention-demanders decided other people’s expertise makes them feel bad
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C @spiffyscientist.bsky.social · 16/11/2025
holy moly batman
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C @spiffyscientist.bsky.social · 16/11/2025
I can’t breathe omfg
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Meg Linehan @meglinehan.com · 16/11/2025
Marta rolling in like this??? This semifinal about to be real as shit.
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andré, but scarier @andre-carlisle.bsky.social · 16/11/2025
meanwhile, esther said
rachel dolezal 'i too' meme
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Michael @scottgoblue314.bsky.social · 14/11/2025
AHAHAHAHAHAHAHA www.sfchronicle.com/sf/article/s...
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C @spiffyscientist.bsky.social · 09/11/2025
I love this league
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Jonathan Eisen @phylogenomics.bsky.social · 08/11/2025
Yes, some people's legacies are complicated. For example, Watson. After all, though he was racist, don't forget his other traits. For example, he was also sexist. And also anti-semitic. And a data / idea thief. So let's not forget all the different facets.
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C @spiffyscientist.bsky.social · 08/11/2025
PLEASE this is what the people want
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Nikita @kryptobanana.bsky.social · 08/11/2025
They should have had like an option on amazon prime to solely watch the game from the ref cam lmao
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C @spiffyscientist.bsky.social · 08/11/2025
the ref cam is crazy
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Ben Wright @benwright.bsky.social · 30/10/2025
🤷‍♂️
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makswhale @maksheadroom.bsky.social · 28/10/2025
let my chihuahua at bat
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Caræsten 🇵🇸 @cara.city · 23/10/2025
Bay Area folks, get ready for ICE sweeps this weekend, look for actions to join if you're able. will post actions as quotes on this post. oaklandside.org/2025/10/22/m...
oaklandside.org
Major federal immigration operation will begin tomorrow in the Bay Area
Customs and Border Protection agents are headed to the Bay Area for an operation, the agency has confirmed.
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C @spiffyscientist.bsky.social · 18/10/2025
I mean bay was already out of this season but…woof
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