• bunkyprewster@startrek.website
    link
    fedilink
    English
    arrow-up
    0
    ·
    6 个月前

    I’m perplexed, if given systemically, does it just regrow missing teeth or try to a grow a 3rd tooth where there’s already a functioning adult tooth in place?

  • Diddlydee@feddit.uk
    link
    fedilink
    English
    arrow-up
    0
    ·
    6 个月前

    Sweet. I lost a few molars in sports accidents and gincidents, so I’d love this. Maybe not the tiny Deadpool arm style of tooth part.

      • Diddlydee@feddit.uk
        link
        fedilink
        English
        arrow-up
        0
        ·
        6 个月前

        The latter. My wife coined it when she broke her wrist when stumbling after a few gins.

    • SorryQuick@lemmy.ca
      link
      fedilink
      arrow-up
      0
      ·
      6 个月前

      From what I can see, it effectively simulates the same thing that happens as a child, aka you lose you existing teeth for the new set, which means there’s always the risk they won’t come in properly, in the right angle… Sounds like a massive headache to replace a tooth of two.

  • zout@fedia.io
    link
    fedilink
    arrow-up
    0
    ·
    6 个月前

    I’ve read about this thing a few times over the last years. It seems all research is done in Japan, there’s a lot of fuss about it, but as far as I know it has never been proven to work if the tooth to be replaced is a permanent tooth. There is a lot of hype from the scientists “wo do believe it will work” kind of stuff.

    • pelespirit@sh.itjust.worksOPM
      link
      fedilink
      arrow-up
      0
      ·
      6 个月前

      See my other comment itt for the source.

      The animal data that convinced regulators and researchers to proceed to human trials represents years of painstaking experimental work.

      In the mouse studies published in scientific journals since 2018, blocking USAG-1 consistently produced supernumerary teeth in animals that should have grown only their standard set.

      The ferret studies were particularly significant, because ferrets, like humans, are diphyodont, meaning they naturally develop only two sets of teeth in a lifetime.

      When ferrets were treated with the USAG-1 blocking antibody, they grew additional teeth beyond their natural adult set.

      The teeth were complete.

      They were functional.

      They bonded with the surrounding bone and tissue in the same way naturally occurring teeth do.

      • zout@fedia.io
        link
        fedilink
        arrow-up
        0
        ·
        6 个月前

        Great article that source, and it seems to agree with me ( I know…)

        There is a version of this story circulating in popular media that frames it simply as a drug that grows back the teeth you lost as an adult. That framing is exciting but premature, and it is worth being precise about what the current trial is and is not. The Phase I trial is a safety study, not an efficacy trial. Its participants are healthy adult men missing at least one molar. The trial’s primary purpose is to determine whether the drug causes any adverse effects at human doses, not yet to demonstrate that a new tooth has grown in its place. The timeline for broader clinical use reflects this reality. The development timeline includes Phase I safety trials through 2025, Phase II efficacy trials in children with congenital tooth loss through 2027, and Phase III large-scale trials through 2029. Researchers aim for general availability by 2030. And even when the drug eventually reaches the market, the initial patient population will be children born without teeth due to genetic conditions, not adults who need a molar replaced.

        • SaveTheTuaHawk@lemmy.ca
          link
          fedilink
          English
          arrow-up
          0
          ·
          6 个月前

          Not sure why they need a phase3 at all. That’s an efficacy trial, efficacy should be obvious at phase 2 and the could get approval.

          They should trial through the Australian TGA, it would take years off the time.

        • Otter@lemmy.ca
          link
          fedilink
          arrow-up
          0
          ·
          6 个月前

          Isn’t that how most clinical trials work though? The post doesn’t imply that it’s solved or widely available yet

          (aside from the chipped tooth photo in the thumbnail I guess)

          • zout@fedia.io
            link
            fedilink
            arrow-up
            0
            ·
            6 个月前

            The headlines suggest tooth regrow will be available in a few years. And it might, if you’re an infant who’s missing a tooth under specific circumstances. Also, in this case the scientist is hinting at more than he can deliver right now (based on the research), and he conveniently has co-founded a company to develop this drug. Let’s just say I hope to be proven wrong, I could use three new teeth since I lost the previous ones 35 years ago.

    • pelespirit@sh.itjust.worksOPM
      link
      fedilink
      arrow-up
      0
      ·
      6 个月前

      I had a friend that said they had those, I never saw it though. I bet there are people who do, or they were fucking with me.

      • cowfodder@lemmy.world
        link
        fedilink
        arrow-up
        0
        ·
        6 个月前

        I had a couple of extras. Most were no big deal, but I had to have one extracted because it was blocking my adult tooth from coming in.

      • MrShankles@reddthat.com
        link
        fedilink
        arrow-up
        0
        ·
        6 个月前

        Nah, my sister had real messed up teeth when she was young, and the dentist referred to it as “shark mouth”. It wasn’t multiple rows, but several of her teeth had an extra tooth right behind it, leading to her mouth being pretty cluttered until they extracted the extras. Not nearly as extreme as an actual shark, but still a lotta teeth if you were able to see 'em

    • SparroHawc@piefed.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      6 个月前

      You kid, but the reason we can regrow teeth like this is that we actually have the cells for a third row of teeth. Once these ones are gone, though, you don’t have any more back-ups.

  • you_are_dust@lemmy.world
    link
    fedilink
    arrow-up
    0
    ·
    6 个月前

    What if something goes wrong and you just keep growing teeth? And you just have too many teeth. Then the teeth start growing in places where they shouldn’t.

    • pelespirit@sh.itjust.worksOPM
      link
      fedilink
      arrow-up
      0
      ·
      6 个月前

      Everyone needs to read the article. We all have the ability to grow a third set of teeth. This drug takes away what’s suppressing that third set. I’m not saying it’s safe, but what you’re worried about isn’t the issue.

      • SaveTheTuaHawk@lemmy.ca
        link
        fedilink
        English
        arrow-up
        0
        ·
        6 个月前

        the issue is whether the new teeth will have proper enamel , or be soft and decay prone like wisdom teeth.

        • tamal3@lemmy.world
          link
          fedilink
          arrow-up
          0
          ·
          6 个月前

          Wait, is that a thing? I have all my wisdom teeth and I think most of them have fillings and awful dentin visible.

    • Apathy Tree@lemmy.dbzer0.com
      link
      fedilink
      English
      arrow-up
      0
      ·
      6 个月前

      Same. I’m down to have all my teeth removed and let new ones grow in, to repair the gum-line corrosion from my early childhood that leaves me highly susceptible to cavities. I have more fillings than teeth at this point.

  • k0e3@lemmy.ca
    link
    fedilink
    arrow-up
    0
    ·
    6 个月前

    I always giggle when I see this treatment mentioned because the gene they block (I think that’s how they explained it) is usag-1. Usagi in Japanese is rabbit, an animal known for their ever-growing teeth.

  • NatakuNox@lemmy.world
    link
    fedilink
    arrow-up
    0
    ·
    6 个月前

    Little known fact. Hockey players start out able to read. The longer they play the sport their abilities just degrade.

      • teyrnon@sh.itjust.works
        link
        fedilink
        arrow-up
        0
        ·
        6 个月前

        Really, do you have a link for that, or I can look for myself I guess. There is a link between male pattern baldness and androgen which is a male hormone, all the hormones are interconnected with each other on feedback loops, so it’s not entirely out of reason to think estrogen could prevent it or whatever.

        That said, baldness is hereditary, and it is passed from your mother’s father, as I was taught in school, and it has checked out everywhere I have looked into it.

        • Estiar@sh.itjust.works
          link
          fedilink
          arrow-up
          0
          ·
          edit-2
          6 个月前

          I myself have reversed some male pattern baldness, so I know it’s anecdotal, but it can be reversed somewhat. It’s mostly because my testosterone is suppressed by Spironolactone which is an anti-androgen rather than because I have estrogen in my body though.

          Finasteride targets that specific hormone though without affecting the rest of your testosterone as much though. If I were to recommend anything to you, finasteride is probably the way to go unless you want to be a girl, in which case I will never stop you. Hims is a good place to go for Finasteride

          Estrogen does have milder antiandrogenic effects though. Some trans people can go on only estrogen and keep the testosterone away

        • captainlezbian@lemmy.world
          link
          fedilink
          arrow-up
          0
          ·
          6 个月前

          It’s DHT. Estrogen does prevent male pattern baldness and slightly reverses it, it’s a known thing for trans women. If you don’t think having your own pair of tits sounds rad as hell though you could just take finestride which is a dht blocker. Fair warning idk if dht does anything most men want, consult your doctor or at least search side effects if you’re more the “buy hormone blockers off the internet” type

          • Holytimes@sh.itjust.worksdeleted by creator
            link
            fedilink
            arrow-up
            0
            ·
            6 个月前

            Don’t forget if your in America the loss of rights, the hate, and possible threat of physical violence if you have your own pair of tits.

            America hates tit havers for some stupid reason. Very odd.