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Stephen O'Rahilly

@stephenorahilly.bsky.social

Endocrinologist. Physican scientist. Director of MRC Metabolic Diseases Unit, University of Cambridge. Expressing my own opinions here, not my employers

975 Followers  |  63 Following  |  73 Posts  |  Joined: 18.11.2024  |  2.2896

Latest posts by stephenorahilly.bsky.social on Bluesky

Several a day!! What do you use now?

07.10.2025 06:35 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

the research illustrates how the control of adipocyte lipolysis by circulating ketone bodies is important for normal metabolic homeostasis. Thanks to the many contributors in the two Cambridges!

03.10.2025 01:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Genetic impairment of ketone body signalling is a prevalent contributor to human metabolic dysfunction Emerging evidence that circulating levels of key metabolic intermediates are sensed by a range of G-Protein Coupled receptors (GPCRs) is providing critical new insights into the control of systemic me...

www.medrxiv.org/content/10.1... Working with our great collaborators at Pfizer we have uncovered a common genetic contributor to metabolic ill health/

03.10.2025 01:10 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
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Cardiac adaptation to endurance exercise training requires suppression of GDF15 via PGC-1Ξ± - Nature Cardiovascular Research Khetarpal et al. show that the metabolic regulator PGC-1Ξ± is essential in heart muscle cells for exercise-driven cardiac growth, and that suppression of the stress-induced myokine GDF15 is required to enable cardiomyocyte adaptations to training.

nature.com/articles/s44161-025-00712-3

Interesting. But studies of GDF15 on cells used GDF15 made in mammalian cells which is always contaminated by TGFB family members (see PMID: 29161287) some of which are active at fmolar concs. Yeast or bacterially derived is fine. Qkine is good source

26.09.2025 14:57 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Patrick Vallance hits pause on Research Excellence Framework Science minister announces review of controversial changes to research environment assessment

Fantastic news. Processes designed to measure Research excellence should focus on whether research done at our universities is reproducible, represents a significant advance in understanding, and/or is actually or potentially useful. The rest is just prattle.

04.09.2025 09:55 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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The @easdnews.bsky.social Novo Nordisk Foundation Prize #Diabetes

14.08.2025 10:11 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Glucose-dependent insulinotropic polypeptide receptor signaling in oligodendrocytes increases the weight-loss action of GLP-1R agonism Hansford et al. show that GIPR, a target of new weight-loss drugs, is found in brain cells called oligodendrocytes. GIPR helps these drugs access the brain and boosts weight loss. Without GIPR in thes...

Expanding metabolic roles for the GIPR in oligodendrocytes #weightloss www.cell.com/cell-metabol...

14.08.2025 15:07 β€” πŸ‘ 10    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

So very sad. Davo was a truly great endocrine scientist.

09.08.2025 23:14 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Pre-pregnancy metformin use associated with lower risk of severe nausea and vomiting of pregnancy and hyperemesis gravidarum Severe nausea and vomiting of pregnancy and hyperemesis gravidarum are associated with adverse maternal, fetal, and child outcomes. The recurrence ris…

sciencedirect.com/science/arti... Great to see further evidence emerging supporting the pressing need for trials of preconceptional GDF15 desensitisation with metformin for prevention of severe nausea and vomiting of pregnancy in women with a previous history. Congrats to @drfejzo.bsky.social

03.07.2025 09:42 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0
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Opinion | How the Gay Rights Movement Radicalized, and Lost Its Way

www.nytimes.com/2025/06/26/o... Amazing to see this article appear in the NYT. I hope many of my fellow endocrinologists are reading it @endocrinesociety.bsky.social

29.06.2025 21:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

OMG. This looks terrifying.

15.06.2025 21:52 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Mice lacking this amino acid lost 30% of their body weight But eliminating cysteine, which is found in high-protein foods, from human diets would be challenging.

Mice lacking this amino acid lost 30% body weight www.nature.com/articles/d41... Am I missing something? Mice engineered to have a specific and severe defect in amino acid metabolism get sick and lose weight. Might the rush to find new weight loss targets be impairing our critical faculties ?

24.05.2025 13:33 β€” πŸ‘ 21    πŸ” 8    πŸ’¬ 6    πŸ“Œ 0

I did start my talk by showing the photo and saying (with a wry smile, of course) how delighted I was to be in Uppsala….

22.05.2025 17:24 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Had a great time at Lund university attending their Spring Meeting. Amused to see this poster outside the lecture theatre. Those old English universities: it’s hard to tell them apart 😊

22.05.2025 12:24 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 6    πŸ“Œ 0
Graphic of medicines on a blue background

Graphic of medicines on a blue background

πŸ“’ Job Vacancy! Institute of Metabolic Science
@ims-mrl.bsky.social are looking for a Research Nurse to join their team. Applications open until 30th May!

>>> For more info: bit.ly/4iIkrNo

@cuhnhs.bsky.social @mrcepid.bsky.social @stephenorahilly.bsky.social @cambridgeuni.bsky.social

29.04.2025 14:56 β€” πŸ‘ 1    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

Indeed. And so ironic that while the new administration says it is very keen to understand the effects of food on health, their actions are resulting in the closure of one the US’s most effective labs in that area @kevinh-phd.bsky.social

17.04.2025 07:34 β€” πŸ‘ 10    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
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Carole Hooven: Why I Left Harvard After I stated banal facts about human biology, I found myself caught in a DEI web, without the support to do the job I loved. The only way out was to leave it.

www.thefp.com/p/carole-hoo.... While I applaud Harvard for standing up to the Trump government, this article is mandatory reading for anyone who doesn’t understand how it got to this point.

17.04.2025 07:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

UK’s supreme court rules that legal definition of woman is based on biological sex. This is a hugely important decision. Unanimous .I hope it will open up rational debate in other countries.

16.04.2025 13:11 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thanks so much Brent. I hope I made it clear in my talk that the discovery of the role of GDF15 in pregnancy sickness was very much an international collaborative effort

13.04.2025 01:46 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I really enjoyed recording one of these with you several years ago. Wishing you well with whatever your next venture will be.

02.04.2025 17:27 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Almut Gadow v Open University Almut Gadow Dr Almut Gadow has a personality similar to those I’ve stumbled across a lot whilst talking to people about gender ideology. She’s fiercely intelligent, does not back down a…

Almut Gadow v Open University genderblog.net/almut-gadow-... This piece is from Nick Wallis, the journalist whose doigged research exposed the Post Office Scandal. He is now taking a serious interest in an area that is increasingly affecting UK universities.Worth a read

29.03.2025 15:50 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Come and study with us for a Masters!

25.03.2025 19:28 β€” πŸ‘ 0    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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Shahrar Ali on X: "Fiery speech @ChrisDaviesLD pulling no punches, calling out impact upon impressionable youth of sex denialism, unfettered social contagion & failure of medical due diligence. Truth will cut through in end, once we've properly dispensed with no debate. https://t.co/SlXvgnn4mx" / X Fiery speech @ChrisDaviesLD pulling no punches, calling out impact upon impressionable youth of sex denialism, unfettered social contagion & failure of medical due diligence. Truth will cut through in end, once we've properly dispensed with no debate. https://t.co/SlXvgnn4mx

x.com/shahrarali/s...

24.03.2025 08:17 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The Observer view on gender data: failure to accurately record biological sex harms us all | Observer editorial A report lays bare the extent of real-world detriment caused by institutions that have caved in to activist pressures

www.theguardian.com/commentisfre...

23.03.2025 09:23 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The absence of data on biological sex is an affront to reality The 226-page report into how official data on sex and gender is recorded, by Professor Alice Sullivan of University College London, exposes shocking gaps in public records due to confusion between

The absence of data on biological sex is an affront to reality

www.thetimes.com/article/7463...

20.03.2025 22:11 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Sorry. That should be the Berthold Lecture!

20.03.2025 12:17 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Honoured to be in Baden-Baden to receive the Berthold Medal from the German Endocrine Society and give the abet gold lecture. Really great questions from a wonderfully engaged and responsive audience. Thanks to #JensBruining for his very kind introduction.

20.03.2025 10:57 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0
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Sex Matters on X: "β€œEverybody, regardless of their politics, needs accurate data.” @ProfAliceS speaks to @JustinOnWeb @BBCr4today about the #SullivanReview πŸ“» https://t.co/BSR8ls60pP" / X β€œEverybody, regardless of their politics, needs accurate data.” @ProfAliceS speaks to @JustinOnWeb @BBCr4today about the #SullivanReview πŸ“» https://t.co/BSR8ls60pP

x.com/sexmattersor...

20.03.2025 10:51 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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This International Women's Day, we celebrate as women advocate for change, equity, & inclusivity paving the way for future generations of women scientists

Meet Agnes Lukasik, Patient and Public Involvement & Engagement Manager @ims-mrl.bsky.social

#IWD2025 #AccelerateAction

@mrcepid.bsky.social

08.03.2025 16:00 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Pretty much any bit of useful science I have ever done has involved focusing on the outliers! Each to their own!

25.02.2025 07:36 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@stephenorahilly is following 20 prominent accounts