Christian Mosimann
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chrmosimann.bsky.social
Christian Mosimann
@chrmosimann.bsky.social
4.1K followers 2.5K following 1.4K posts
Johnson Chair/Assoc. Prof., Peds DevBio @ CU Anschutz:
#zebrafish, #devbio, heart disease, lateral plate mesoderm, #evodevo, imaging, transgenesis, et al.
#MobileOfficeViews | #AlwaysBeWriting | guitars | Colorado | #SwissAbroad 🧪
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chrmosimann.bsky.social
Christian Mosimann @chrmosimann.bsky.social · Sep 30
Out @natcomms.nature.com:
our work on how the ❤️-supporting pericardium forms & acts in pediatric heart conditions.🎈🫀

Expanding our preprint & with our first HCR (thx to @thelovelylab.bsky.social!).

Congrats all! #devbio #zebrafish #CHD @cupediatrics.bsky.social @cudevbio.bsky.social
rdcu.be/eIJm5
Reposted by Christian Mosimann
jensfoell.de
Roses are red
That dino looks ill
Headline saying “Fossil vomit contains new species of pterosaur from Brazil”. For additional info apart from the joke, the sub-headed says: “Filter-feeding flying reptile was likely devoured by a dinosaur during the early Cretaceous”
November 25, 2025 at 7:58 PM
Reposted by Christian Mosimann
labwaggoner.bsky.social
A metabolic atlas of mouse aging
www.cell.com/cell-metabol... @cp-cellmetabolism.bsky.social @lyssiotislab.bsky.social @umichigan.bsky.social @petemullen.bsky.social @keckmedicineusc.bsky.social @stevepilley.bsky.social
November 25, 2025 at 9:15 PM
Reposted by Christian Mosimann
biyolokum.bsky.social
Students applying for grad school, or reaching out to professors. I have an important piece of advice for you: STOP DOING THIS 👇 (a thread) #STEM #PhD #gradschool #academictips
November 21, 2025 at 9:53 PM
Reposted by Christian Mosimann
matthias-krause.bsky.social
Endocytosis of Wnt-receptors is required for signalling, yet uptake mechanisms remain poorly understood. We resolve a longstanding controversy by showing that Wnt3a triggers rapid Clathrin-Mediated and Fast Endophilin-Mediated LRP6 endocytosis at low concentrations sufficient for Wnt activation.
November 25, 2025 at 10:58 AM
Reposted by Christian Mosimann
karenjliu.bsky.social
Exciting new findings on mechanisms of Wnt signalosomes --from Sheng-yuan Wu's PhD project in @matthias-krause.bsky.social lab! Great collaborators, great story. #xenopus 🐸
November 25, 2025 at 1:15 PM
Reposted by Christian Mosimann
drugmonkey.bsky.social
Here we go. Its ALL #NIHGrant applications. Dec 8 is the new deadline. And a one page prelim data update will be accepted for all May Council submissions. grants.nih.gov/grants/guide...
NOT-OD-26-012: Updated Guidance on Reopening of NIH Extramural Activities Following the October 1, 2025 - Lapse in Appropriations
NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: Updated Guidance on Reopening of NIH Extramural Activities Following the October 1, 2025 - Lapse in Appropriations NOT-...
grants.nih.gov
November 24, 2025 at 6:52 PM
Reposted by Christian Mosimann
colincarlson.bsky.social
“I asked ChatGPT” “I asked Claude” I asked this horseshoe crab and he said your ass wouldn’t have lasted two seconds in the Triassic
crab
November 23, 2025 at 9:50 PM
chrmosimann.bsky.social
Growth. 🌱
November 23, 2025 at 4:41 AM
Reposted by Christian Mosimann
abeisaw.bsky.social
Very excited to see the first Beisaw lab publication out in its final form 🥳🥳 rdcu.be/ei1I7 if you’re interested in zebrafish heart regeneration and how cardiomyocytes replace the fibrotic injured tissue (spoiler alert: macrophages play an important role), then read it here 👇
Border-zone cardiomyocytes and macrophages regulate extracellular matrix remodeling to promote cardiomyocyte protrusion during cardiac regeneration
Nature Communications - Adult zebrafish are capable of heart regeneration, but how the collagenous injury site is replaced remains unclear. Here they provide an in-depth analysis of cardiomyocyte...
rdcu.be
April 23, 2025 at 5:53 PM
Reposted by Christian Mosimann
drlachie.bsky.social
Know the difference.
A microscope on the left, an identical one on the right except that it's glowing green. The left is captioned "Fluoresence Microscope", the right "Flueorescent microcscope"
November 19, 2025 at 10:08 PM
Reposted by Christian Mosimann
desimonelab.bsky.social
The lab’s first pre-print! We investigated how growth-inducing Erk activity waves are regulated in regenerating zebrafish scales. We discovered that Erk waves are followed by waves of expression of their own inhibitors, as predicted by excitable waves theory. tinyurl.com/26r2cmpj
November 20, 2025 at 6:11 PM
Reposted by Christian Mosimann
cudeptsurg.bsky.social
For Lung Cancer Awareness Month, assistant professor of cardiothoracic surgery Alison Mungo, MD, walks us through what patients might expect when undergoing surgical treatment for lung cancer. #ImproveEveryLife #LungCancerAwareness
November 20, 2025 at 7:51 PM
Reposted by Christian Mosimann
siegenthalerlab.bsky.social
Our work out in @devbiol.bsky.social, PDGFra is needed for 🧠 perivascular fibroblast development... ⬇️ perivascular fibroblast = ⬇️ perivascular macrophage...cross-talk? 👀
Led by Hannah Jones @hejcell.bsky.social w/ Kelsey Abrams, Sophia Kim, excited for more projects w/ @fantauzzolab.bsky.social!
Micrscopy images of cleared cerebral brain tissue showing penetrating blood vessels (white) in mice - magenta cells are perivascular fibroblasts and cyan cells are perivascular macrophages - in control mice, both cell types are near the vessel termini by postnatal day 10 but in 'cKO' mice that lack expression of a tyrosine kinase receptor PDGFRa in fibroblasts, both the fibroblasts and macrophages are only partially covering the vessels. From Figure 4 of our paper - https://authors.elsevier.com/a/1m7fa2mzTkyfS
November 20, 2025 at 1:23 PM
Reposted by Christian Mosimann
davidlowry.bsky.social
I am currently searching for a new postdoctoral researcher to study the evolution, genetics, and physiology of cold acclimation and freezing tolerance in switchgrass at Michigan State University. This work will be funded by a newly funded five-year DOE grant. careers.msu.edu/jobs/researc...
Research Associate-Fixed Term - East Lansing, Michigan, United States
Position Summary The Lowry Lab at Michigan State University is searching for a postdoctoral research associate to conduct molecular and physiological experiments to understand the causes of genetic va...
careers.msu.edu
November 20, 2025 at 2:50 PM
Reposted by Christian Mosimann
auschwitzmemorial.bsky.social
On our YouTube page, we share videos about the history of Auschwitz, footage of commemoration events, educational materials, webinars, and podcasts.

Join us and subscribe: https://t.co/fP1wB5WizJ

Amplify our voice. We remember together.
Railroad tracks converging at the former Auschwitz II-Birkenau site, with watchtowers and foggy fields in the background.
November 20, 2025 at 11:00 AM
Reposted by Christian Mosimann
luschnig.bsky.social
Job Alert! The Institute for Neuro- and Behavioural Biology at the Faculty of Biology @uni-muenster.de invites applications for a Full Professorship (W3) in “Systems Neuroscience” - Highly attractive research environment at the Multiscale Imaging Center. Apply by January 5th. See shorturl.at/VczFp
November 12, 2025 at 5:42 PM
chrmosimann.bsky.social
Necessary/sufficient.
November 20, 2025 at 2:48 AM
Reposted by Christian Mosimann
nataliajagielska.bsky.social
AI slop gracing the cover of Royal Society B. Not only in AI yellow but scientifically nonsensical. Come on. I'm certain human photographs and artworks were ignored to platform ... this.
Royal Society B cover with AI generated image of endocasts.
November 18, 2025 at 10:49 AM
Reposted by Christian Mosimann
aineurolab.bsky.social
Happy to report that our recent findings on the innervation of the masseter made the cover of the International Journal of Developmental Biology @isdb.bsky.social .
Early post for #FluorescenceFridays
#DevBio @brchfx.bsky.social 🧪

ijdb.ehu.eus/issue/69/
Beta3-tubulin staining in a whole mount mouse embryo (embryonic day 10) in blue, with neural crest cell derivatives labeled with tdtomato transgene (red).
November 19, 2025 at 3:16 PM
Reposted by Christian Mosimann
labwaggoner.bsky.social
@nature.com Measles makes a comeback
www.nature.com/articles/d41...
November 19, 2025 at 4:16 PM
Reposted by Christian Mosimann
alexwild.bsky.social
This is such a cool study. A parasitic ant queen tricks worker ants into murdering their own queen, so the parasite can take over the colony.
This parasitic ant tricks workers into committing matricide
Newly mated parasitic queen ants invade colonies and spray their victims with a chemical irritant that provokes the workers to kill their mother.
www.sciencenews.org
November 17, 2025 at 5:43 PM
Reposted by Christian Mosimann
lionlchristiaen.bsky.social
Re-upping this with a Bluetorial in a shameless act of self-promotion. 1/n
embojournal.org The EMBO Journal @embojournal.org · 20d
Cell cycle-driven transcriptome maturation confers multilineage competence to cardiopharyngeal progenitors
Wei Wang, @lionlchristiaen.bsky.social and colleagues
www.embopress.org/doi/full/10....
November 15, 2025 at 8:15 AM
Reposted by Christian Mosimann
wildlifevision.bsky.social
The rare & beautiful violet sea snail - a predator of Portuguese Man O’War & by-the-wind sailors. It lives its whole life at the surface of the open ocean, using a bubble raft to stay afloat. It’s normally more common in warmer waters but occasionally seen here
#marinebiology #marinelife #oceanlife
November 17, 2025 at 7:03 PM
Reposted by Christian Mosimann
compoundchem.com
On #NationalHomeMadeBreadDay, here’s the chemistry behind baking the perfect loaf: www.compoundchem.com/2016/01/13/b...

🧪 #ChemSky
Infographic titled “The chemistry of baking bread,” explaining how four main ingredients—flour, water, yeast, and salt—interact during the steps of mixing, kneading, fermenting, and baking. On the left is an image of sliced baguettes. Sections: Flour, water, and salt: Shows proteins glutenin and gliadin forming gluten when mixed with water. Notes that kneading strengthens the viscoelastic gluten network that traps gas. Explains flour’s protein content, how water hydrates proteins, and how salt adds flavor, slows fermentation, strengthens gluten, and improves elasticity. Starch and sugar: Illustrates starch as long chains of sugar molecules. Enzymes in flour convert starch to maltose, and yeast converts sugars like glucose for fermentation. Explains that sugar contributes to browning and flavor. Yeast and fermentation: Shows yeast converting glucose into carbon dioxide (which makes dough rise) and ethanol (which evaporates during baking). Describes yeast as single-celled fungi producing gas bubbles that expand the dough; kneading distributes bubbles. Includes sourdough information showing a 100:1 ratio of bacteria to yeast and the role of lactic acid in flavor. Other ingredients: Includes fats (which tenderize dough and stabilize gas bubbles), baking soda (sodium bicarbonate), baking powder (sodium bicarbonate plus cream of tartar), ascorbic acid (strengthens gluten), and xanthan gum (used in gluten-free breads).
November 17, 2025 at 4:33 PM
Reposted by Christian Mosimann
mads100tist.bsky.social
"Postdoc in the job market"
A headline: Scientists have discovered a 'third state' between life and death
November 16, 2025 at 7:52 PM