[HN Gopher] Low-dose radiation offers relief to people with knee...
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       Low-dose radiation offers relief to people with knee osteoarthritis
        
       Author : geox
       Score  : 96 points
       Date   : 2025-09-29 22:44 UTC (4 days ago)
        
 (HTM) web link (www.astro.org)
 (TXT) w3m dump (www.astro.org)
        
       | nikolay wrote:
       | For centuries, in Bulgaria, since Roman times, people have been
       | bathing in slightly radioactive water to treat osteoarthritis.
       | I'm not sure how this is news or an invention when it's been
       | around for centuries and has been the standard of care in
       | Bulgaria for decades. There are sanatoriums and spa centers in
       | Pavel Banya, Bulgaria [0], and I know many friends who go there
       | once or twice a year for treatments and swear they couldn't live
       | without them!
       | 
       | [0]: https://pavelbanyagrand.com/en/the-healing-mineral-water-
       | in-...
        
         | Plankaluel wrote:
         | Just because something has been done for hundreds of years does
         | not mean it has been scientifically shown to actually do more
         | than placebo. A lot of people do a lot of stuff that has been
         | proven to do nothing detectable, and they still swear by it.
         | 
         | "It has been done for hundreds of years" isn't a good argument.
         | There is a reason "Appeal to tradition" is one of the more
         | famous logical fallacies.
         | 
         | Also: The radiation doses used in this trial are very likely
         | much, much higher than what you would get from such a bath in
         | radioactive water (otherwise the water would be so radioactive
         | that staying in there or even drinking it would kill you very
         | quickly), so this doesn't really tell us anything about whether
         | the traditional modalities do anything or not. And yes, stuff
         | like that also exists in Austria with Radon caves, and many
         | other places.
        
           | vixen99 wrote:
           | Good point! Interestingly there is evidence that at least
           | some life forms appear to benefit from 'highly radioactive'
           | water.
           | 
           | https://hal.science/hal-03025146v1/file/Petit%20et%20al%2020.
           | ..
           | 
           | "Direct Meta-Analyses Reveal Unexpected Microbial Life in the
           | Highly Radioactive Water of an Operating Nuclear Reactor
           | Core"
           | 
           | https://journals.asm.org/doi/pdf/10.1128/spectrum.01995-22
           | 
           | "Culturomics of Bacteria from Radon-Saturated Water of the
           | World's Oldest Radium Mine"
        
           | groos wrote:
           | Modern medicine is hardly logical where therapies are
           | concerned. There is often not any coherent theory of why a
           | therapy works and yet it may be commonly used in treatments.
           | If you examine the literature supplied with your drugs, it
           | often states "exact mechanism of action is unknown but yada
           | yada". This is why there are double blind studies in
           | medicine. Absent a theory, this is the only way to gauge the
           | effectiveness of a therapy. Hence, if bathing in slightly
           | radioactive waters has provided beneficial to people over a
           | long period of time, you can't dismiss it as "appealing to
           | tradition". It may need validation with a study but can't be
           | ignored as just tradition.
        
             | wat10000 wrote:
             | The fact that it's been _done_ over a long period of time
             | does not prove that it 's beneficial. As you say, that's
             | why there are double-blind studies. If the only evidence of
             | benefit is that it's been done for a long time, that
             | literally is just tradition. It's worth looking into it to
             | see if it works, but there are plenty of traditional
             | remedies with long histories that don't.
        
         | justin66 wrote:
         | Similar treatments exist without the radioactive water.
        
         | kakacik wrote:
         | There are also old radon baths in Jachymov in Czech republic
         | working on same principle. Exactly for same primary purpose -
         | problems with joints and bones.
         | 
         | Then communists made local uranium mines/gulags for 'enemies of
         | the state' which was basically a prolonged death sentence, many
         | were just beaten to death or died from cold/starvation.
        
           | mionhe wrote:
           | I'm not clear on what the second paragraph is adding to your
           | example in the first.
        
             | clarionbell wrote:
             | It's a related and important historical fact that is not
             | well known outside of Czechia. Why not share it with wider
             | audience when given a chance.
        
               | bookofjoe wrote:
               | Off topic: I just learned a couple weeks ago that Czechia
               | and Czech Republic are both acceptable names for the
               | country.
        
         | phoronixrly wrote:
         | > The mineral water in Pavel Banya is rich in the chemical
         | element radon
         | 
         | > The mineral takes care of having radiant and beautiful skin,
         | healthy bones and, of course, excellent brain functions.
         | 
         | Ah, yes, radiant skin.
        
         | zdragnar wrote:
         | I heard some Amish talking about their parents taking a trip to
         | Montana to visit the radon mines for arthritis.
         | 
         | An example here: https://www.radonmine.com/facility/
         | 
         | There's quite a few out that way.
        
       | davibu wrote:
       | 3 Gy is nowhere near what could be qualified as a "Low dose".
       | 
       | "A whole-body acute exposure to 5 grays or more of high-energy
       | radiation usually leads to death within 14 days. LD1 is 2.5 Gy,
       | LD50 is 5 Gy and LD99 is 8 Gy.[11] The LD50 dose represents 375
       | joules for a 75 kg adult. "
       | https://en.wikipedia.org/wiki/Gray_(unit)#Radiation_poisonin...
        
         | djtango wrote:
         | Gy has a mass component to it. Is 3Gy on just your joint
         | different to 3Gy of your whole body?
        
         | khuey wrote:
         | A gray is a measure of energy deposition per unit mass. 1 Gy to
         | the entire body is very different than 1 Gy to a particular
         | part of the body, especially since some parts of the body are
         | far more sensitive to radiation than others.
        
         | f4uCL9dNSnQm wrote:
         | The abstract indicates 6 fractions (so 0.5Gy for each). And 3
         | is low compared to cancer treatments, which go up to 80 Gy.
        
         | greenavocado wrote:
         | Gray (Gy) - measures energy deposited per kilogram of tissue.
         | Think of it like measuring how many bullets hit a target, not
         | how much damage they do.
         | 
         | Sievert (Sv) - measures biological damage. This accounts for
         | the fact that different types of radiation and different
         | tissues react differently. Think of this as the actual damage
         | done.
         | 
         | The bullet's energy is identical in all cases (same Gy), but
         | the biological damage varies wildly (different Sv).
         | 
         | The same energy deposited (Gy) causes vastly different
         | biological damage (Sv) depending on:
         | 
         | What tissue (bone marrow is like your heart - critical; muscle
         | is more resilient)
         | 
         | What radiation type (alpha particles are like hollow-point
         | bullets - more damaging per energy unit; gamma rays are like
         | full metal jacket - cleaner pass-through)
         | 
         | For most medical purposes (X-rays, gamma rays), 1 Gy is approx
         | 1 Sv, which is why people use them interchangeably and add to
         | confusion.
         | 
         | Location and delivery matter enormously. It's like pouring
         | water. Put 3 liters in your lungs, you drown (dead). Put 3
         | liters on your hand, your hand gets wet (annoying but
         | harmless).
         | 
         | 3 Gy to your whole body at once is potentially fatal. You'll
         | likely die within weeks from bone marrow failure, your blood
         | cells can't regenerate. 3 Gy to a small tumor in your knee is a
         | typical treatment session. The rest of your body gets almost
         | nothing, and your bone marrow keeps working fine. 3 Gy spread
         | over 6 sessions (0.5 Gy each) to a localized area is a very low
         | dose that gives tissue time to repair.
        
         | layer8 wrote:
         | For a moment I was confused that radiation doses would be
         | measured in gigayears.
        
       | dmwood wrote:
       | Depending on the field, 3 Gy IS 'small' (with respect to doses to
       | tissue during cancer treatment, which can be 60 Gy). Whole body
       | doses of 1 milliGy in the environmental biz are considered worth
       | examination. Even investigations of biomarkers for radiation
       | exposure typically use doses in the range of 3 Gy.
        
       | hulitu wrote:
       | > Low-dose radiation offers relief to people with knee
       | osteoarthritis
       | 
       | Radon girls anyone ? /s
        
       | mmastrac wrote:
       | This might be one of those cures that works like the old T-Gel
       | shampoo (ie: carcinogenic coal tar that turned out to be immune-
       | suppressing enough to prevent dandruff eventually caused cancer).
       | 
       | Though, at the ages when Osteoarthritis shows up, it might be
       | better to take on a smaller risk of monitor-able extremity cancer
       | than the pretty large QoL reduction of severe arthritis.
        
         | el_benhameen wrote:
         | There is a theory (theory! very theoretical) that the risk from
         | radiation does not scale linearly and that low doses of
         | radiation might actually be protective. See
         | https://en.m.wikipedia.org/wiki/Radiation_hormesis
        
           | CjHuber wrote:
           | So we are going full circle now?
        
             | nyc_data_geek wrote:
             | Radiation is good for you now, a little bit, as a treat.
        
               | SoftTalker wrote:
               | Ra-di-a-tion. Yes, indeed. You hear the most outrageous
               | lies about it. Half-baked goggle-box do-gooders telling
               | everybody it's bad for you. Pernicious nonsense.
               | Everybody could stand a hundred chest X-rays a year. They
               | ought to have them, too.
               | 
               |  _J. Frank Parnell_ (from the movie Repo Man).
        
           | nsxwolf wrote:
           | The residential radon mitigation industry does not like this.
        
             | trhway wrote:
             | radon radiation is primarily alpha. That is never good in
             | any dose.
             | 
             | >In this multicenter trial, researchers enrolled 114
             | patients with moderate-to-mild knee osteoarthritis across
             | three academic centers in Korea. Participants were randomly
             | assigned to receive one of two radiation regimens -- a very
             | low dose (0.3 Gy) or a low dose (3 Gy)
             | 
             | This is gamma. Those doses are "low" because delivery here
             | is localized. If given full-body the 3Gy has something like
             | 25-50% mortality.
             | 
             | The cancer patient are delivered like 20-80Gy into the
             | tumor and surrounding tissues which just kills cells
             | outright.
             | 
             | The point is that "radiation" is multiparametric.
        
               | lupusreal wrote:
               | It's not really the radiation from radon itself which is
               | the problem, but rather radon's daughters. Radon is a
               | noble gas, so it's not going to accumulate in you and
               | doesn't get much chance to do damage to people even if
               | they inhale it; they'll just exhale it moments later
               | before barely any of it can decay. But radon's daughters,
               | the chain of atoms which are produced from the decay of
               | radon and each other, aren't gases, so if stagnant air
               | with radon sticks around it's going to 'rain' an atomic
               | dust of radioactive isotopes which can accumulate and, if
               | disturbed, can be inhaled and stick with people.
        
           | lupusreal wrote:
           | It's probably reasonable to say that radiation actually being
           | _beneficial_ is very theoretical, but the linear no-threshold
           | model of harm from radiation is definitely in the theoretical
           | category too. It 's used because it's very conservative, but
           | evidence supporting it for low radiation dosages is very
           | weak.
        
           | toss1 wrote:
           | Perhaps the word you are looking for is "conjecture that the
           | risk from radiation ..." ??
        
           | CGMthrowaway wrote:
           | Like sunlight on skin?
        
           | prmph wrote:
           | There is the alternative observation that sometimes the
           | effect of harmful things is based on the _frequency_ and
           | _length_ of exposure, not so much its magnitude.
           | 
           | Compare with the CTE, where a few bone-crushing traumas do
           | not seem to cause it, but chronic long-term low grade impacts
           | is more likely to cause it.
           | 
           | Another example, I probably could eat a massive amount of
           | processed meat a few times without much ill effect, but years
           | of eating moderate amounts might do you in.
        
         | hangonhn wrote:
         | Wow! I've actually used T-Gel because I used to get dandruff
         | really bad as a teen and it was pretty effective. It's
         | horrifying to know what it really was.
        
           | toast0 wrote:
           | It says coal tar right on the bottle. And it smells awful.
           | And it can be pretty effective.
        
           | mmastrac wrote:
           | I used it briefly and then researched it and it seemed like
           | at the time (mid-2000s), nobody could say which of the
           | menagerie of components of the coal tar was actually the
           | effective one.
           | 
           | I stopped pretty much at that point.
        
       | NoiseBert69 wrote:
       | I am offering my basement as a Radon spa. Anyone interested?
       | 
       | Dose can be controlled by switching off the forced ventilation
       | and sealing the gas trap.
        
       | eig wrote:
       | Glad to see this! We need better treatments for OA short of a
       | joint replacement.
       | 
       | I'm not too surprised that this treatment works. It's essentially
       | like localized steroids to just the joint- killing off the immune
       | cells causing inflammation.
       | 
       | Good features is that it's localized (so no systemic
       | immunosuppression) and the risk of cancer is low since you rarely
       | get radiation-induced cancer in joints because there's not enough
       | dividing cells. Unfortunately heading to radiotherapy is a
       | logistical challenge, but there are enough people suffering from
       | OA that would happily do this to get relief.
        
         | munificent wrote:
         | _> It 's essentially like localized steroids to just the joint-
         | killing off the immune cells causing inflammation._
         | 
         | Are you confusing osteoarthritis with rheumatoid arthritis? I
         | didn't think the pain of osteoarthritis had anything to do with
         | the immune response. You've literally got bone rubbing against
         | bone. It's not going to feel good.
        
       | p1dda wrote:
       | I'd much more prefer allogeneic stem cell treatment for
       | osteoarthitis. It's a shame it's not available in all those
       | countries where millions of dollars are made by companies making
       | knee joint replacement prosthesis. What a coincidence.
        
         | olejorgenb wrote:
         | https://physicians.dukehealth.org/articles/stem-cell-therapy...
         | 
         | Which countries is it a available/approved in?
        
       | dinkblam wrote:
       | stuck in cloudflare for 3 seconds so i cancelled loading the
       | website
       | 
       | why to web admins think this is acceptable for visitors?
        
       | Havoc wrote:
       | Tom Scott made a video about a related treatment - radon caves a
       | couple years ago
       | 
       | https://www.youtube.com/watch?v=zZkusjDFlS0
        
         | sparky_z wrote:
         | Interesting. Now I have a question about that video, and I
         | think I'm more likely to get a good answer from someone here
         | than in the comments there, so here goes:
         | 
         | Tom says that because that's the only radon cave that can turn
         | the flow of radon on and off at will, it's the only place where
         | you could (in theory) run a double-blind experiment on radon
         | exposure therapy.
         | 
         | My question is: would it not be just as possible to do that in
         | a laboratory setting? Surely there are already lab facilities
         | in the world that are set up for double blind "exposure"
         | experiments of that sort, with easy control of dosages, flow
         | rates, etc. Is the problem that radon gas too expensive to
         | harvest or store safely? Why is that cave the only feasible
         | option?
         | 
         | EDIT: It now occurs to me that the answer could be "because the
         | half life of radon is to short to transport it, so you would
         | basically have to generate it in the lab by getting an enormous
         | amount of uranium in one place and letting it decay and find
         | some way of filtering the byproducts to isolate the radon in a
         | way that putting it under a huge layer of bedrock does
         | naturally." Sounds plausible to me, but does anyone know if
         | that's the case?
        
       | clarionbell wrote:
       | This should be a reminder that we have no evidence that the
       | Linear no threshold model of radiation exposure is accurate. In
       | fact, we have compelling evidence against it. But due to rather
       | aggressive lobbying effort by anti-nuclear activists, we are
       | stuck with this idea for the time being.
       | 
       | It's simply the default that was decided on as the most
       | conservative option possible, but that's pretty much it.
       | 
       | Radioactive baths have a rather long pedigree. In Jachymov, Czech
       | Republic, they are used for over century. Sometimes they are even
       | covered by health insurance.
       | 
       | https://en.wikipedia.org/wiki/Linear_no-threshold_model
       | https://cs.wikipedia.org/wiki/L%C3%A9%C4%8Debn%C3%A9_l%C3%A1...
        
         | pfdietz wrote:
         | Some anti-nuclear activists are against LNT because they think
         | it _understates_ the effect of low dose radiation.
         | 
         | The conservative approach would be to assume low dose radiation
         | has the maximum effect not ruled out by evidence. This would be
         | _higher_ than predicted by LNT.
        
           | prmph wrote:
           | Exactly, it could be that a few pretty high exposures are
           | actually less damaging than frequent low but clinically
           | significant exposures.
        
         | lostlogin wrote:
         | I think the point of the article is that there hasn't been a
         | lot of evidence for low dose radiation as a treatment.
        
       | 6d6b73 wrote:
       | How soon will some entrepreneur open a spa in Chernobyl?
        
         | bobsmooth wrote:
         | Way ahead of you https://www.youtube.com/watch?v=zZkusjDFlS0
        
       | nradov wrote:
       | A recent Peter Attia Drive podcast has an interview with Dr.
       | Sanjay Mehta, a radiation oncologist who has recently also
       | started using low-dose radiation to treat arthritis. Empirically
       | the results seem quite encouraging.
       | 
       | https://peterattiamd.com/sanjaymehta/
        
       | hollerith wrote:
       | Exposure to radiation up-regulates genes involved in DNA repair
       | pathways, genes associated with antioxidant defense (notably
       | those downstream of the Nrf2 transcription factor) and autophagy-
       | related genes (which are crucial for the degradation and
       | recycling of cellular components).
       | 
       | Fasting does all those things, too -- _without_ introducing
       | random errors into one 's DNA. Basically everyone under 40 should
       | do regular fasts of some form, and those that do will probably
       | derive no _additional_ benefit from exposure to ionizing
       | radiation, i.e., the type of radiation being promoted by the OP.
       | (People older than 40 need to worry about losing muscle mass
       | during a fast since old people find it very hard regain muscle
       | mass once it it lost. Actually it is likely that only people over
       | 60 or 65 might have to worry about muscle mass: experts disagree
       | on the best cut-off age, and 40 years old 's is the lowest I have
       | seen.)
       | 
       | Three days of fasting has all of the benefits I list above, but
       | there are risks to going completely without calories for that
       | long, and actually our ancestors probably went without any access
       | to calories for days almost never, but often endured stretches of
       | days in which their calorie intake was less than a sustainable
       | level, but not zero. To reduce the risks of going completely
       | without calories for 3 days at a time, longevity researchers have
       | devised the "fasting-mimicking diet", which give over the course
       | of 5 days most or all of the benefits as eating no calories at
       | all for 3 days. It restricts calories to about 800 calories per
       | day with only 10% of that coming from protein and is the type of
       | fasting that most people should be doing.
       | 
       | FMD requires no interaction with or prescription from the health-
       | care industry and costs nothing except the time and attention
       | needed to learn how to count calories if one has never done that
       | before.
        
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