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Dr Petra de Graaf

@petradegraaf

Regenerative Medicine in Urology | Group leader | Assistant Professor | UMC Utrecht | πŸ†πŸ‘©β€πŸ”¬ | #phallusthursday

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10.02.2025
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Latest posts by Dr Petra de Graaf @petradegraaf

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Although urethral stricture mainly affects men, our impact goes further. The project advances male urethral reconstruction while enabling future female and tubular organ applications, aligned with Horizon Europe’s gender equality and inclusive research goals.
πŸ”— www.strong-ur.eu/about-us/the...

06.01.2026 09:39 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

And one abstract accepted for the EAU27 (also 100%, only one submitted) @uroweb.org

Tissue engineering for urethral reconstruction is booming
πŸ†πŸ‘©β€πŸ”¬

23.12.2025 13:48 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

4/4 abstracts accepted, @eutermis.bsky.social here we come!

23.12.2025 13:46 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
This artefact is now held in the MAN Napoli. Photo credit: James Heath via Flickr. The stele is shaped as a temple with supporting columns. Between the columns inside the temple is a phallus which is almost as tall as the columns themselves.

This artefact is now held in the MAN Napoli. Photo credit: James Heath via Flickr. The stele is shaped as a temple with supporting columns. Between the columns inside the temple is a phallus which is almost as tall as the columns themselves.

✨Bring on the good fortune✨

This #PhallusThursday we celebrate with this tuff stele from Pompeii that depicts a large phallus inside a temple. If you ever wondered if the Romans attributed divine power to the phallus, wonder no more!

#AncientRome

13.11.2025 06:45 πŸ‘ 32 πŸ” 5 πŸ’¬ 3 πŸ“Œ 0

Want to know more about urethral diseases and how biofabrication may generate solutions for patients? Check out post below!

13.11.2025 18:54 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Androgen Receptor Localization in Human Oral Mucosa: Implications for Hypospadias Surgery Hypospadias is a congenital defect of the urethra that often requires surgical correction. Oral mucosa (OM) is commonly used as a graft material in adult and pediatric urethroplasties (revised as sugg...

Fresh paper!

www.jpedsurg.org/article/S002...

09.11.2025 08:17 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1

It was a true pleasure to host this meeting.

30.10.2025 20:23 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Talk about an in-flight meal.

For the first time, researchers have captured rats hunting bats by grabbing them from the sky. Learn more: https://scim.ag/3Jqldmn

27.10.2025 22:31 πŸ‘ 662 πŸ” 192 πŸ’¬ 29 πŸ“Œ 132
Two panel comic:
Left: a mostly completed puzzle with a regular-looking piece missing labeled "My Story So Far"
Right: a blobby and irregular shape, with an arrow pointing at the missing piece (it obviously does not fit) labeled "My Latest Experiment"

Two panel comic: Left: a mostly completed puzzle with a regular-looking piece missing labeled "My Story So Far" Right: a blobby and irregular shape, with an arrow pointing at the missing piece (it obviously does not fit) labeled "My Latest Experiment"

Sigh. We're gonna need a bigger story...

26.10.2025 07:15 πŸ‘ 52 πŸ” 16 πŸ’¬ 0 πŸ“Œ 2
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Proud to host the @strong-ur.bsky.social consortium in our institute, stay tuned for more cool pictures

27.10.2025 12:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1
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Targeting ECM-producing cells with CAR-T therapy alleviates fibrosis in chronic kidney disease Zhao et al. identify PDGFRΞ² as a common surface antigen for the major ECM-producing cells including fibroblasts, pericytes, and myofibroblasts in the kidney. They further demonstrate that PDGFRΞ² CAR-T cells significantly alleviate fibrosis-associated pathologies in multiple CKD models, evoking an integrated therapeutic strategy for CKD and its cardiovascular complications.

Targeting ECM-producing cells with CAR-T therapy alleviates fibrosis in chronic kidney disease

05.09.2025 19:09 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Great paper from our institute, congrats @riclevato.bsky.social and team

#biofabrication #3Dprinting #regenerativemedicine

06.09.2025 11:19 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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EAU Guidelines on Urethral Strictures - Uroweb The EAU Urethral Strictures Guidelines aim to provide an overview of the aspects relating to urethral strictures.

πŸ”Ž Urethral strictures can vary significantly in severity, and understanding this, is key to improving diagnosis and treatment.
Read all about it in the @uroweb.org ’s Urethral Strictures Guidelines classifying strictures πŸ‘‰ uroweb.org/guidelines/u...
#Urology #MedicalResearch #EUscience

19.08.2025 12:32 πŸ‘ 0 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Lessons Learned from Tissue Engineering in Urethral Reconstruction and Pelvic Organ Prolapse | Tissue Engineering Part B: Reviews Urogenital diseases, such as hypospadias, incontinence, urethral obstruction, and pelvic organ prolapse, are common conditions that often require treatments at specialized health care providers. All t...

Fresh paper! Thanks to @erneurogen.bsky.social for funding the meeting and ofcourse all the co-authors.

www.liebertpub.com/doi/abs/10.1...

05.08.2025 19:28 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Last week we celebrated 10 years Regenerative Medicine Utrecht, so proud to be part of this community! | Petra De Graaf Last week we celebrated 10 years Regenerative Medicine Utrecht, so proud to be part of this community! I enthusiastically joined in organization of the symposium, inviting old and new friends for le...

www.linkedin.com/posts/drpetr...

06.07.2025 09:58 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Biomimetic model to study penile dysfunctions Nature Biomedical Engineering - A multi-layered penis model can be 3D printed with a complex vessel architecture for the study of penile physiology and for restoring erectile functions in vivo.

Fresh publication, check out our news and views article in Nature Biomedical Engineering
First manuscript (of many I hope) with @isabellemartinier.bsky.social
#biofabrication #diseasemodeling #peniledisease #urology

rdcu.be/erlM6

17.06.2025 12:33 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Happy Cucumber Day πŸ₯’πŸŽ‰
Cucumbers (and other things πŸ˜‰) come in all shapes and sizes. Big ones, small ones, straight ones, curved ones. Because just like cucumbers, condoms also come in all shapes and sizes. #safesexysummer #cucumber #condoms #cukes #pickles #STIprevention

14.06.2025 17:01 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Biomimetic tubular materials: from native tissues to a unifying view of new vascular, tracheal, gastrointestinal, oesophageal, and urinary grafts Repairing tubular tissuesβ€”the trachea, the esophagus, urinary and gastrointestinal tracts, and the circulatory systemβ€”from trauma or severe pathologies that require resection, calls for new, more effe...

This review is from @isabellemartinier.bsky.social, @fm-fernandes.bsky.social and LΓ©a Trichet:

'Biomimetic tubular materials: from native tissues to a unifying view of new vascular, tracheal, gastrointestinal, oesophageal, and urinary grafts'

pubs.rsc.org/en/content/a...

03.03.2025 15:28 πŸ‘ 6 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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RMU Symposium Regenerative Medicine Utrecht 10-Year Anniversary Symposium

Check out the RMU Symposium inΒ Tivoli VredenburgΒ onΒ June 30th!
Registration is open for all those interested in Regenerative Medicine

We celebrate our 10 year anniversary with key note lectures, workshops, posters, and more! Get a sneak peak of our program below.

www.uu.nl/en/research/...

29.05.2025 18:39 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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eUROGEN webinar: Tissue engineering as applied to the urinary tract - is it a reality? - STRONG-UR STRONG-UR will be presented during the webinar β€œTissue engineering as applied to the urinary tract – is it a reality?” by Dr. Christopher Chapple. The is organised by the ERN eUROGEN. The term β€˜tissue...

🚨 Join the upcoming @erneurogen.bsky.social webinar about the latest evidence on tissue engineering in the urinary tract.

πŸ—“οΈ 28 May
πŸ•™ 18-19h
πŸ“ Online

Our project will be presented as an example of ongoing research in this field!

πŸ‘‰ All info: shorturl.at/M1pCd

#TissueEngineering #EUproject

15.05.2025 08:35 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Lab-kept bumble bees roll small wooden balls around for no apparent purpose other than fun, a 2022 study reveals.

Learn more on #WorldBeeDay: scim.ag/4dAwCuD

20.05.2025 17:32 πŸ‘ 3419 πŸ” 657 πŸ’¬ 197 πŸ“Œ 105

Don’t forget penis cancer! Have your sons vaccinated too #GetVaccinated

20.05.2025 19:22 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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TERMIS-EU 2025 is coming to Freiburg! πŸ‡©πŸ‡ͺ
Join hosts Bernd Rolauffs, Melanie Hart, GΓΌnther Schlunck & Thorsten Steinberg, May 20–23.
Workshops, cross-disciplinary science & big ideas.
#TermisEU2025 #TissueEngineering #RegenerativeMedicine

08.05.2025 14:00 πŸ‘ 7 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Picture of Sandra van Vlierberghe on a podium next to her slide.

Picture of Sandra van Vlierberghe on a podium next to her slide.

Proud of my colleague in @strong-ur.bsky.social

Prof. Sandra van Vlierberghe received her @eutermis.bsky.social Mid Term Career Award #TERMISEU2025

20.05.2025 16:39 πŸ‘ 5 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
Two small figures pose for a photo on top of a large telescope dish which reflects the colours of the aurora in the sky over an Antarctic landscape

Two small figures pose for a photo on top of a large telescope dish which reflects the colours of the aurora in the sky over an Antarctic landscape

In a wood, surrounded by trees and tall grass, a researcher wearing outdoor gear and a cap, crouches in shallow water next to a large white box and holds several tiny frogs in open hands

In a wood, surrounded by trees and tall grass, a researcher wearing outdoor gear and a cap, crouches in shallow water next to a large white box and holds several tiny frogs in open hands

A figure wearing red overalls illuminated in a doorway that appears to open from a black area of trees and buildings, silhouetted by a starry night sky

A figure wearing red overalls illuminated in a doorway that appears to open from a black area of trees and buildings, silhouetted by a starry night sky

A researcher wearing high vis jacket and head torch sits in a small boat holding a wide-barrelled air gun. Behind, a fishing trawler surrounded by flocks of sea birds, and snow covered hills on the horizon

A researcher wearing high vis jacket and head torch sits in a small boat holding a wide-barrelled air gun. Behind, a fishing trawler surrounded by flocks of sea birds, and snow covered hills on the horizon

These are the striking winners of our 2025 Scientist At Work photo competition, taking viewers on a voyage of discovery that includes the Arctic and Antarctic circles, and a shot from atop a Greek mountain.

Read the full stories of these images: https://go.nature.com/4dqQK2s

16.05.2025 13:26 πŸ‘ 55 πŸ” 17 πŸ’¬ 0 πŸ“Œ 1
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🚨 Bladder Cancer: The Forgotten Cancer

This May, let's unite to shift the narrative around bladder cancer. It’s time to elevate awareness, recognise the early symptoms, and dismantle the barriers preventing individuals from seeking the medical advice they need.

16.05.2025 13:26 πŸ‘ 1 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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β€˜About as close to aliens as we’ll ever get.’ Can AI crack animal language? Dolittle Prize recognizes breakthroughs in translating β€œspeech” of dolphins, cuttlefish, and other creatures

"Dolphins call each other’s signature whistles if they get separated. Once, we played one of those whistles while the pair was still together. They responded with a totally different whistle. We call it the 'WTF whistle,' because it really did seem like that’s what they were asking." @science.org

16.05.2025 12:52 πŸ‘ 74 πŸ” 24 πŸ’¬ 3 πŸ“Œ 3
Figure group in soft white limestone of a woman and a man with an oversized phallus, dated 305-330 BCE. The nude man is seated, his enlarged phallus extended on ground. A smaller figure of a nude woman playing her harp is seated on the far end of his phallus. The man holds a curious object in front of him – a musical instrument? Some detail are outlined in black paint.

Figure group in soft white limestone of a woman and a man with an oversized phallus, dated 305-330 BCE. The nude man is seated, his enlarged phallus extended on ground. A smaller figure of a nude woman playing her harp is seated on the far end of his phallus. The man holds a curious object in front of him – a musical instrument? Some detail are outlined in black paint.

Give it up for these hard working entertainers on Labour Day!

#PhallusThursday

01.05.2025 14:30 πŸ‘ 6 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0
How to 3D print human tissue - Taneka Jones
How to 3D print human tissue - Taneka Jones YouTube video by TED-Ed

🧬 This short video offers a clear and insightful look at how 3D bioprinting works, a key technology driving innovation in regenerative medicine!

πŸ“Ί Check it out: www.youtube.com/watch?v=uHbn...

#3Dprinting #Biotechnology

24.04.2025 09:25 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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It's Testicular Cancer Awareness Month 🐿️ πŸ₯œ 🌰 Self-exams are important to familiarize yourself with what is normal for you. If you notice any changes or something feels off, take action & see a doctor. #KnowThyNuts #TCisNoJoke #TesticularCancerAwarenessMonth #nuts #cancer @tcsociety.bsky.social

19.04.2025 21:01 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0