Greg Kirschen MD PhD

Physician-Pharmacologist 💊 | @CPSolvers | #BLM | Tweets ≠ advice

[Greg Kirschen MD PhD @Obfarmacologist]

@GymBr_o So many "no's" lol

[We don't deserve cats 😺 @catsareblessing]

Bro studied the tutorial first

[Natalie @Jeebly_Natalie]

Will it pop? 😂
Fan: 1 - Football: 0

[Greg Kirschen MD PhD @Obfarmacologist]

Hot take- if you have good science, you shouldn’t need 10 main figures and 18 supplementary figures to publish in top journals.

#AcademicTwitter
#PhDLife

[Massimo @Rainmaker1973]

A simple explanation for why surgical lights never cast shadows.

[Massimo @Rainmaker1973]

That “head butt” from your cat isn’t just random affection: it’s a sophisticated bonding behavior called bunting.

When your cat gently bumps or rubs its head against you, it’s marking you with its scent and declaring you part of its colony. Cats live in a scent-driven world, and bunting is their way of creating a shared olfactory identity among family members.

According to renowned cat behaviorist Pam Johnson-Bennett, this ritual allows cats to exchange pheromones so that everyone in their social group, including their human companions, carries the same familiar scent. It’s a powerful way of claiming territory and reinforcing social bonds while signaling safety and belonging.

Certified cat behavior consultant Ingrid Johnson adds that bunting is far more than a simple scent swap. It’s a genuine expression of feline love. By activating the scent glands located on their forehead and around their ears, cats are essentially saying: “You’re mine, you belong here, and I trust you.” They’re also politely “correcting” your natural human scent to make you smell like family.

In short, when your cat head-bunts you, it’s delivering a biological “I love you” — one that strengthens the bond and confirms you’re part of their inner circle.

[Johnson-Bennett, P., & Johnson, I. (2024). Feline Communication and the Social Significance of Head Bunting. Cat Behavior Insights]

[Greg Kirschen MD PhD @Obfarmacologist]

@Airaasayss I overshare

[Greg Kirschen MD PhD @Obfarmacologist]

New article out today characterizing menstrual effluent. A step towards helping us understand hormonal and immunological milieu during normal menstruation and in disease states. @MostafaBorahay @HopkinsGynOb

https://t.co/XbwFf1APlS

[Greg Kirschen MD PhD @Obfarmacologist]

@nexon_tweets To be clear, butter does not drip through the walls of the stomach into the peritoneal cavity

[Interesting things @awkwardgoogle]

Packing thousands of straws together basically creates a low-tech pixel screen.

Each straw acts as an independent light pathway, perfectly mimicking how data channels work.

[Arjun Raj @arjunrajlab]

At some point we have to ask ourselves: what are we doing here? I am old enough to remember when an R01 was sufficient to run a mid-size lab. Now it's effectively a postdoc fellowship. I don't think that is healthy for science. At some point, we have to make some hard decisions.

[UI/UX Savior @UiSavior]

🪄

[Yuppie @yuppie064432]

Stanley and Yeti cups finally got the test they deserved. 1600°C settled the debate

[Nan Liu, Duke-NUS @nliulab]

Our new @NatureMedicine Perspective argues that uncritical use of #AI in early medical training may weaken independent clinical reasoning, and proposes a framework for integrating AI while protecting core competencies.

https://t.co/vAriiUhOk4

@NaturePortfolio @dukenus #DukeNUS

[Sholto David @addictedtoigno1]

Surprised to discover that Thermo Fisher appears to show a fake western blot for the validation of one of their p53 antibodies. I've added a diagram to show the very similar bands. This does not appear to be one of the "published figures", but their own internal data.

[Greg Kirschen MD PhD @Obfarmacologist]

Vaccines are safe, and Kennedy’s FDA suppressed safety data:

https://t.co/BCX1PJeVUC

[Greg Kirschen MD PhD @Obfarmacologist]

@kidney_boy @NephRodby Can’t we agree as a scientific community not to use AI to manipulate scientific figures? Just don’t do it!

[Joel M. Topf, MD FACP @kidney_boy]

NEJM Images in Clincal Medicine from last week retracted due to AI image manipulation. Look at the numbers on the ruler🤦🏻‍♂️

https://t.co/lafNw15Kao

[藤井亮輔 🦒 Ryosuke Fujii (Ryo) @Ryo_epidemiol]

論文閲覧できるリンクはこちらです（こちらはシェア拡散頂いて構いません）🔗

https://t.co/gUGrjWEPoU

[Claudia @ClaudiaToni]

Un gatto randagio in pessime condizioni è stato trovato sul ciglio della strada, e gli è stata data la possibilità di una vita migliore.
Questo è il suo salvataggio 🥹❤️