
@drharrycostello.bsky.social Academic neuropsychiatrist | MD PhD | Clinical Lecturer @UCLPsychiatry | Mood, Motivation & Neurodegeneration | Aspiring apiarist
London
Joined December 2009
- Tweets5.3K
- Following2K
- Followers1.3K
- Likes6.8K
Pinned Tweet
Delighted our (@jonroiser @ProfRobHoward @a_schrag @ymyymmr @karelkieslich) paper is now out in @Brain1878! 🎉
We show that #Parkinson's #depression may stem from a reduction in reward sensitivity that is unresponsive to dopaminergic medication:
🔗 doi.org/10.1093/brain/awaf09…
🧵⬇️
Harry Costello retweeted
We have a commentary out on some really interesting findings by colleagues in UCL and Finland on some of the maths behind some of the high profile shingles -> dementia analyses. In brief +
Paper: pubmed.ncbi.nlm.nih.gov/4245…
Commentary: kwnsfk27.r.eu-west-1.awstrac…
Harry Costello retweeted
the @ASA_UK complaint I made was upheld about Do Health @drchatterjeeuk. Commercial screening brings false positives, false reassurance, overdiagnosis.
Will the @gmcuk act on the dozens of drs making false claims and have commercial conflicts of interests?
Harry Costello retweeted
1/ We discovered something totally unexpected about the neural structure of consciousness that overturns decades of thinking on its biological basis and brings us significantly closer to the recipe for generating conscious awareness.
New preprint: biorxiv.org/content/10.64898… (led by @HesseJanis, with @FrankLanfranchi, @_conor_mcgrory, @Yuelin_Shi, and @EngelTatiana)
Harry Costello retweeted
The GRAIL NHS Galleri randomized trial with over 142,000 participants was published today @NEJM
"In this trial, we did not observe a lower incidence rate of stage III or IV cancers [the primary endpoint] across 12 prespecified cancers after three screening rounds with multicancer early-detection testing plus usual care than with usual care alone."
nejm.org/doi/full/10.1056/NE…
Harry Costello retweeted
Major release!
=--=--=--=--=
I have compiled the worlds largest database of pediatric suicide information, consisting of 137 countries, from 1952-2025. In total, 27.64 BILLION person-years of data are represented.
/1
>math professor spends a year on one of the hardest unsolved problems in math
>"Navier-Stokes"
>his drafts for the whole project went through codex sessions
>openai had his logs in codex
>suddenly rumor leaks AI solved it
>he emails openai to ask what's going on
>openai calls within days
>"funny story, our model also solved it"
>using his exact approach
>asks openai: did you train on my sessions?
>no answer
Harry Costello retweeted
Exclusive: Nigel Farage filmed undercover celebrating secret new foreign donations
Undercover footage verified by Channel 4 News reveals a secret plot by senior Reform UK figures to break the law on party donations. A leading legal expert is now calling for a criminal investigation.
🔗 Read the exclusive story on Substack:
channel4news.substack.com/p/…
Harry Costello retweeted
Our yearlong investigation reveals Nigel Farage courting illicit funding as part of a plot to bring foreign money into British politics, orchestrated by his top aides and caught on hidden camera.
Harry Costello retweeted
Coming tonight: Channel 4 News and @Verbatim_Media reveal an undercover investigation inside Reform UK.
Watch at 7pm on Channel 4 or YouTube.
Harry Costello retweeted
I have a concern we may be looking at misdiagnosed cases of functional cognitive disorders here- particularly given the example of not being able to walk but just not enough information to make any judgments in any direction
This controversial surgery for Alzheimer's patients aims to improve drainage of fluid from the brain. What do we know about it?
go.nature.com/4gjBV3h
Harry Costello retweeted
The mRNA vaccine success vs melanoma in a Phase definitive 3 randomized trial today is on top of signs of success for personalized mRNA neoantigen vaccines vs pancreatic cancer, triple negative breast cancer, and non-small cell lung cancer wsj.com/health/pharma/modern…
Harry Costello retweeted
Massive study published yesterday in @NatureHumBehav for anyone in the neuropsychiatry/mind-brain-behavior spaces
Direct in vivo evidence for how attention can modulate the immune system in ways that seem almost unbelievable
nature.com/articles/s41562-0…
Harry Costello retweeted
But…it was the opposite, I developed a low-cost Covid vaccine technology that actually bypassed big pharma. We did this at $2-4 per dose, reached 100 million people, saved an estimated 300,000-500,000 lives. I made nothing. It’s incredible to watch people cede all their critical thinking skills to conspiracy sites. This is how totalitarian and communist regimes thrive
Replying to @TulsiGabbard
Do not forget Pfizer and Dr. Mrna Hotez.. crimes against humanity while raking in millions.
Harry Costello retweeted
A long thread on a quasi experimental study modelled on the @Nature paper using Welsh data and suggesting live shingles vaccine protects against dementia. Sadly in 20 times the sample size using precisely the same quasi experimental design we showed no such apparent protection
Harry Costello retweeted
Comorbidities and Complications in Parkinson’s Disease in Primary Care - Okunoye - 2026 - European Journal of Neurology - Wiley Online Library @UCL_PCPH @a_schrag @CAPS_UCL onlinelibrary.wiley.com/doi/…
Harry Costello retweeted
I’m not a BMA member, but this statement is one I support: Reducing funding for clinical academics when numbers are already in decline fails to recognise their contribution to the health & wealth of the UK.
The financial saving is minimal but I fear the costs will be substantial
Responding to @officestudents guidance from the Secretary of State for Education setting out funding for 2026-27 for universities that imposes cuts to funding for medical academics: bma.org.uk/bma-media-centre/…
Our new review in @molpsychiatry:
#Depression affects a third of people with #Alzheimer's or #Parkinson's disease, yet current #antidepressants have little benefit. We review disease-specific mechanisms and emerging treatments.
nature.com/articles/s41380-0…
Harry Costello retweeted
Are we on the threshold of re-emergence of highly anatomically restricted neurosurgical procedures to treat the most severe and refractory mental health conditions? Mirroring advances in movement disorders, OCD has already been safely and effectively Rx.
doi.org/10.1192/bjp.2026.107…
Harry Costello retweeted
RETRACTED!
TL;DR: This study, which claimed the time of day had massive effects on immunotherapy efficacy, but which appeared fraudulent, now seems to certainly have been fraudulent.
Many thanks to the editors at Nature for handling this quickly and correctly.




































