David Tinker

2.4K posts

David Tinker

David Tinker

@david_tinker

https://t.co/ggTwbKFrW2 https://t.co/AQKTqmhL31

Cape Town Katılım Mayıs 2009
228 Takip Edilen687 Takipçiler
David Tinker retweetledi
Palo Galko
Palo Galko@pgalko·
Absolutely mind blowing…
Mehdi (e/λ)@BetterCallMedhi

I genuinely think this might be the most important story I’ve read this year and I need to talk about it a guy in australia just designed a custom mRNA cancer vaccine for his dying dog using chatGPT and alphafold, he has 0 background in biology and it worked, the tumor shrunk by half, the genomics researchers are absolutely stunned & I genuinely think this story is way bigger than people realize here’s what he actually did, he paid 3000 bucks to get the tumor DNA sequenced, fed the data to chatGPT to identify mutations of interest then used alphafold to predictt the 3D structure of the mutated proteins & find therapeutic targets, then he designed a custom mRNA vaccine targeting the specific neoantigens of his dog’s tumor, all of this from his laptop & the genomics professor who received the sequencing request initially thought it was a joke few months later this same professor is looking at the results saying if we can do this for a dog why are we we rolling this out to all humanswith cancer and this is where I need you to understand what alphafold actually represents because I’m convinced most people have heard the name without grasping what’s hapening underneath: for decades figuring out the 3D structure of a single protein required months sometimes years of X-ray crystallography /cryoelectron microscopy, entire labs dedicated to one molecule, alphafold2 solved this by predicting the structure of virtually every known protein thats ovr 200 million structures which earned it the Nobel prize in chemistry in 2024 but here’s the thing, alphafold 3 released in 2024 went even further where alphafold 2 predicted the structure of an isolated protein alphafold 3 predicts interactions between proteins DNA RNA small molecules & ligands in a unified system basically it models how a drug molecule will bind to a protein target with 50% better accuracy than the best existing tools & it does it in hours instead of years and thats exactly what this guy exploited for his dog, he used alphafold to see the 3D shape of of the mutated tumor proteins & figure out how an mRNA vaccine could teach the immune system to recognize & destroy them specifically and look what fascinates me personally is what this signals for whats coming next isomorphic Labs the deepmind subsidiary dedicated to drug discovery already signed multibillion dollar partnerships with Eli Lilly & Novartis and the first drugs entirely designed by AI through alphafold3 are expected to enter human clinical trials by end of 2026 we’re talking oncology & immunology candidates that were designed through rational design meaning the AI literally drew the molecule to fit perfectly onto the target instead of screening millions of random compounds like we’ve been doing for 50y by the way the movement is accelerating way faster than people think, deepmind open sourced alphafold 3 in late 2024 the scientific community immediately built on top of it, models like OpenFold3 backed by amazon & Novo Nordisk, startups like recursion developing specialized versions… I’m telling you we’re entering the era of the autonomous lab where AI designs a molecule robots synthesize it & high-throughput platforms test it with 0 human intervention I believe the next frontier is temporal modeling, today alphafold predicts the static shape of a molecule tomorrow we’ll predict how it moves & vibrates over time inside a living cell & after that come patient digital twins simulations that predict how your specific genetic variations will affect your response to a given drug, truly personalized medicine at the atomic level traditionally it takes 15 years & roughly billion dollars to bring a drug from discovery to market, AI is compressing that cycle at a pace that should terrify every incumbent & what this australian guy just proved is that the entire pipeline tumor sequencing target identification structure prediction custom vaccine design can be executed by 1 person with a laptop for a few thousand $$

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William A. Wallace, Ph.D.
William A. Wallace, Ph.D.@drwilliamwallac·
Most exercise advice focuses on how much you train. This paper shows the real question is what kind of cellular architecture you’re building. This systematic review and meta-regression synthesizes data from 425 human studies to quantify how different exercise modalities reshape mitochondrial content and skeletal-muscle capillarization, two core determinants of metabolic health and endurance capacity. The mechanistic takeaways: • Training intensity is the dominant driver of mitochondrial expansion. High-intensity and sprint-interval training produced ~2–4× greater increases in mitochondrial markers compared with traditional endurance training when normalized for time. • Volume still matters, but differently. Mitochondrial adaptations scale with training intensity × volume, whereas capillary growth depends more on intervention duration (≥8 weeks) than intensity alone. • Capillarization and hypertrophy are not the same adaptation. Capillary density and capillaries per fiber increased even when cross-sectional area did not, reinforcing that vascular remodeling is a distinct biological response. • Trainability is context-dependent. Untrained individuals showed larger relative gains, but well-trained individuals still adapted, especially under higher-intensity stimuli, contradicting the idea of a hard “adaptation ceiling.” • Age, sex, and disease status did not negate adaptation. Young vs. old, male vs. female, and healthy vs. cardiometabolic or pulmonary disease groups all demonstrated meaningful mitochondrial and vascular remodeling with appropriate training exposure. I'm sum, exercise is not merely a behavioral intervention, it is a dose-dependent biological signal that remodels mitochondrial density, oxidative capacity, and skeletal-muscle microvasculature. Intensity determines how much adaptation you get; duration determines how completely the tissue remodels.
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Luisma
Luisma@lmagallego·
DeepHRV v1.7.0 is out — and it's a big one. Here's what's new:
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Jem Arnold
Jem Arnold@jem_arnold·
Common question I hear: "My VO2max is x and my current threshold power is y. Is it possible for me to reach an FTP of z?” It's surprisingly simple to predict power from VO2, and vice versa We just need reasonable estimates for substrate oxidation and metabolic efficiency📊🧵/7
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David Tinker retweetledi
HealthFit
HealthFit@HealthToFit·
I have added automatic download of the workout plans from @intervalsicu If you are interested, please reach out from within the app for beta testing.
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Luisma
Luisma@lmagallego·
Vitamins for intervals. I am launching DeepMetric Lite, a web app that aims to add features that I believe are interesting to boost the application. For now, we have added the Readiness Panel, and I will be adding more features. dmlite.controlmetrics.es
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Houman Khosravani
Houman Khosravani@neuroccm·
Hey folks! @intervalsicu - one of the Best platforms for metrics and analysis of your fitness - this community of #tech #medicine #ML #programming #fitness #wellness #cyclists #gravel #cycling #runners #foamed #MedEd is keen on wellness, fitness, and wanting to know their health + performance metrics. Living healthy and keeping fit is so important - more than ever. Prevention of disease is crucial. Do you folks know about + use the platform @intervalsicu | intervals.icu | If so Check it out! If not - definitely check it out and subscribe to @intervalsicu -I had the distinct privilege of interviewing the founder and developer of this platform Mr. @david_tinker, we get into #fitness #cycling #programming #backendDevelopment #engineering Podcast of the interview is out now! on @velohealthltd Podcast and @strokefm podcast! - drop me a line and subscribe @velohealthltd Velo Health Podcast: podcasts.apple.com/gb/podcast/vel… Stroke FM: Apple Podcasts: podcasts.apple.com/us/podcast/str… Spotify Podcasts: open.spotify.com/show/5GSIfpaQV… @cyclingweekly @gcntweet @velovelovelo__ @CanadianCycling @Garmin @GarminFitness @wahoofitness @wahoofitness @GoZwift @Dropbox @ouraring @StravaEng @Strava @AmazfitGlobal @dcrainmakerblog @GetDesFit @LifeTime_Life
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Mathieu Lambert
Mathieu Lambert@matlamberrt·
J’analyse l’entraînement de Neilson Powless en vidéo 🔎 Volume, intensité, charge d’entraînement etc.. tout est analysé : youtu.be/tuh9g2wBF3Q
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John Peters
John Peters@endura·
The after effects of man-flu. Usual easy 55min trail loop with the dog. Same pace and soggy conditions. HR ~15bpm higher!! Still got some recovering to do before thninking about any tempo or hard efforts :( @intervalsicu compare.
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David Tinker
David Tinker@david_tinker·
LLMs are very cool .. except Chat GPT has been hallucinating features that Intervals.icu does not have, frustrating for users trying to enable stuff that doesn't exist :)
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intervals.icu
intervals.icu@intervalsicu·
Intervals.icu now has very flexible custom training zones for time in zones and workout prescription. Use any activity stream (not just power, HR, pace), any anchors (FTP, LTHR, custom fields) and absolute values #cycling #running
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