Stephanie Caty, PhD
@stephcaty.bsky.social
180 followers 120 following 57 posts
Scientist and science communicator Postdoc @ US EPA researching immunotoxicology Views are my own
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Reposted by Stephanie Caty, PhD
wired.com
WIRED @wired.com · Jul 21
On Monday, some employees at the EPA’s Office of Research and Development began receiving emails detailing that they had been assigned new positions within the EPA. "There is no action you need to take the reassignment, and there is no option to decline.”
EPA Employees Still in the Dark as Agency Dismantles Scientific Research Office
On Monday, some employees at ORD, the largest office in the agency, began receiving emails detailing that they had been assigned new positions within the EPA. "There is no action you need to take the ...
www.wired.com
stephcaty.bsky.social
Amidst all the drama at the EPA, we’re still trying to do science.

Buying reagents has been prohibitively difficult, but on the bright side, we finally got some new supplies today! That we ordered on April 30….

Most of this is focusing fluid for our flow cytometer, nothing costly or unusual

🧪
Three cardboard boxes sitting on a laboratory bench.
Reposted by Stephanie Caty, PhD
stanfordbpp.bsky.social
Just a few more days until the deadline!

If you're planning to apply to Bio-based PhD programs this year, considering joining us at the Biology Preview Program where we'll walk you through the PhD application process and help you polish you application materials!

Apply here: bit.ly/4n4Nxtu
stephcaty.bsky.social
Not pictured: the small shout and large flinch when this spider—inevitably—jumped on me.

#jumpingspider #macrophotography 🧪
stephcaty.bsky.social
Whenever I move somewhere new, for some reason, people love to tell me about how bad their allergy season is.

I do think North Carolina takes the cake though. Footprints and tire tracks in pollen is a whole new level.
stephcaty.bsky.social
This weekend I went out in search of some fun things to look at on my microscope and found some flowers that I thought would be cute.

And they are cute, but even better, they were COVERED in aphids. Probably not great for the plants, but a very fun surprise for me.

#microscopemondays #microscopy 🧪
A close up of a flower with white petals. The stamens are covered in bright yellow grains of pollen. A close-up image of several bright green aphids clustered on a plant stem. The aphids have translucent bodies and delicate legs, with visible antennae extending from their heads. The plant stem is covered in tiny reddish-brown spots. The background is slightly blurred, with hints of white flower petals visible. An image of a small cluster of white flowers, next to a quarter for scale.
stephcaty.bsky.social
Think corn was the first crop to be domesticated in the US? Think again. 🌽

In my latest video for @scishow.bsky.social, I dive into the story of America’s lost crops—ancient plants that were farmed in what is now the US long before corn took over.

youtube.com/watch?v=VjFT...

#SciComm 🧪
The Ancient Crops We've Forgotten How to Grow
YouTube video by SciShow
youtube.com
Reposted by Stephanie Caty, PhD
erictopol.bsky.social
A pie graph worth keeping in mind as the NIH budget plummets jamanetwork.com/journals/jam... for 356 new FDA drugs approved
graph of NIH basisfor new drugs
stephcaty.bsky.social
The wildflowers around my apartment are quickly becoming my favorite microscope muses

🧪 #microscopemondays #microscopy
Microscopic image of a dandelion seed head, with thin, hair-like filaments extending outward in a starburst pattern.
Reposted by Stephanie Caty, PhD
mcuban.bsky.social
From 2010 to 2016 (latest data I have ), NIH research contributed to EVERY drug approved by the FDA
stephcaty.bsky.social
One of my favorite tools for designing pretty graphics for my science is coolors.co which can help you build a color palette for your poster or figures.

If you have some colors embedded in your work already (like these microscopy images I had) you can build a color scheme around them

#scicomm 🧪
stephcaty.bsky.social
This week I had been planning to attend the @sotoxicology.bsky.social annual meeting for the first time. However, DOGE had other plans.

But the science-sharing must go on! So here is my poster plus a thread with some details of what I’ve been doing.

#2025SOT

🧪
stephcaty.bsky.social
I'm currently on the hunt to find a reference chemical that reduces neutrophil and/or macrophage counts that I can use as a positive control in this assay moving forward. Any suggestions are very welcome!
stephcaty.bsky.social
I've been developing methods to image these fish on a high-content imaging platform called the Opera Phenix, which allows me capture 10x confocal images of an entire 96 well plate of fish and then analyze those images to pull out cell counts, all within the span of about 2 hours.
stephcaty.bsky.social
The idea behind the assay is that if a chemical of interest is developmentally immunotoxic, we could measure a change in the number of neutrophils or macrophages as a read out of that toxicity.
stephcaty.bsky.social
We have two transgenic lines of zebrafish in the lab that express fluorescent markers specifically in either macrophages or neutrophils (two key cell types of the innate immune system).
stephcaty.bsky.social
Throughout the past few months at the EPA, I've been working on a project to develop new methods to test for developmental immunotoxicity using zebrafish.
stephcaty.bsky.social
This week I had been planning to attend the @sotoxicology.bsky.social annual meeting for the first time. However, DOGE had other plans.

But the science-sharing must go on! So here is my poster plus a thread with some details of what I’ve been doing.

#2025SOT

🧪
Reposted by Stephanie Caty, PhD
luckytran.com
This is what many cities in the U.S. looked like before the EPA.

Why the heck would anyone celebrate deregulating it?
Illegal dumping grounds off the New Jersey turnpike across from Manhattan in the 1970s Smog rolling on over Manhattan in the 1970s
stephcaty.bsky.social
Love finding out that I’m probably going to lose my job by seeing someone post this story on Instagram 🫠🫠

This is very bad. Not just for me and others who do research at the EPA, but for the health and safety of everyone who lives in the US.

🧪

www.nytimes.com/2025/03/17/c...
Trump Administration Aims to Eliminate E.P.A.’s Scientific Research Arm (Gift Article)
More than 1,000 chemists, biologists and other scientists could be laid off under a plan to dismantle the Office of Research and Development.
www.nytimes.com
stephcaty.bsky.social
The flowers have started blooming in North Carolina, including this teeny one I’ve seen popping up all over the place.

🧪 #microscopemondays #microscopy
stephcaty.bsky.social
This is a sad day for the EPA.

However, I know that many of us at the EPA are dedicated to the true mission: to protect human health and the environment. And we’ll do our best to keep fighting for that.

🧪

www.nytimes.com/2025/03/12/c...
E.P.A. Declares ‘Greatest Day of Deregulation Our Nation Has Seen’
Lee Zeldin, the E.P.A. administrator, said he would revise or repeal dozens of air, water and climate protections to help industries.
www.nytimes.com
stephcaty.bsky.social
Pine needles are much prettier than I realized

#MicroscopyMonday #microscopemondays #sciart #microscopy 🧪
A highly magnified image of overlapping pine needles, with fine lines and rows of tiny white dots running along them.
Reposted by Stephanie Caty, PhD
jpflores.rbind.io
March 7 @standupforscience.bsky.social happened. I now have a question. Reply to this thread w ur answers!

What do we do with this momentum? Think innovative, creative, mundane, give us all your ideas.

We have ideas, but this is for EVERYONE. I want everyone’s ideas.
Reposted by Stephanie Caty, PhD
peiferlabunc.bsky.social
NC friends of science. Join me tomorrow in Raleigh on Halifax Mall by the State Capitol for the Stand Up For Science Rally--talks begin at 12:30. Let's remind our neighbors and our politicians that science solves societal problems, develops disease treatments and creates jobs! 🧪 Please share
Rally Poster with the Stature of Liberty