• Durian@lemmy.cafe
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    13 hours ago

    I wonder if we could one day grow miniature human bodies (not conscious ones) to use for these tests. Mice are a lot different to humans.

  • AbouBenAdhem@lemmy.world
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    2 days ago

    In the long run, using mice to test human medicines will result in selection pressure for humans whose physiology more and more closely resembles mice.

  • AreaKode@lemmy.world
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    3 days ago

    (not mice), but Fancy Rats are extremely susceptible to tumors. It sucks. More rats I’ve owned have died of either cancer or respiratory illnesses than old age.

    Bonus shot of my boy Finn:

  • Treczoks@lemmy.world
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    2 days ago

    Just like with antibiotics. When Penicilin was originally tested, they happened to test it on just the right animals. One kind of standard lab animals would have just died from that stuff.

    • baggachipz@sh.itjust.works
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      2 days ago

      The whole concept of “curing cancer” is such a trope. Cancer is a condition, and it annoys the fuck out of me that people treat it as one disease like measles or the flu.

      • jet@hackertalks.com
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        7 hours ago

        There are some unifying theories of cancer that do kinda make it into one thing: https://doi.org/10.3389/fcell.2015.00043

        I.e. the Warburg effect, and damaged mitochondria being st the root of all cancers.

        In your example the flu is not just one thing either, it’s a group of viruses that broadly have the same symptoms

    • Jankatarch@lemmy.world
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      2 days ago

      Even when we find a single drug that effortlessly cures every type of cancer and costs $1 to peoduce it will be patented by some giant company and sold to highest bidders.

    • aarch0x40@lemmy.world
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      3 days ago

      There’s more profit in causing and treating cancer than curing it. Can’t weaken those revenue streams just so some poor people can go on living. If they were worth saving then they wouldn’t have been born better.

  • rowinxavier@lemmy.world
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    2 days ago

    The crazy thing is we actually do have things that work in humans but not in mice. Mice are omnivores and are very different in terms of optimal energy state. They tend to run in glucose more easily than on fat and their whole biology is built to be small and fast, with short life spans.

    Checking how DNA repair works in an animal which lives for maybe 2 years is great for understanding DNA repair in short lived organisms, but we have tk repair damage for 50 times as long. It is just so much more complex and requires such different tools when you switch from maybe 2 years to maybe 80 years, it really isn’t sane to assume it will all carry over.

    Now for an accute toxin, say tobacco, sure, some things work just fine. There is not a huge difference between humans and mice when subjected to cyanide or arsenic. Being crushed by a falling piano is going to kill both of us. But a chronic poison? That will take decades to kill? That is very different. We can shed cells in a different way to how they can. We have more mass to store things. We have more energy storage. We have bigger kidneys with more opportunities for filtering. We are different.

    When we enter ketosis we have some fairly significant cancer responses. When we maintain fasting for 5+ days we have a fairly large bump in autophagy, a state where the body kills off and recycles damaged cells. This state can cause some types of cancer to be more obvious to our immune systems and allow the tumor to be attacked. In some cases otherwise inoperable tumors can be removed after shrinking them through fasting. This does not replicate in mice. So yes, some treatments (not cures because that doesn’t really apply) do work in humans and not in mice.

    • jet@hackertalks.com
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      7 hours ago

      When we maintain fasting for 5+ days we have a fairly large bump in autophagy, a state where the body kills off and recycles damaged cells. This state can cause some types of cancer to be more obvious to our immune systems and allow the tumor to be attacked. In some cases otherwise inoperable tumors can be removed after shrinking them through fasting.

      Cancer cells can’t metabolize fat, when your fasting and in ketosis your body is only supplying fat and the cancer has nothing to eat (mostly, there is some glucose produced as a baseline)

      I.E. fasting slows down the cancer energy rate so that the immune system can start catching up.

      This is why the press-pulse cancer protocol uses deep ketosis and fasting in addition to supreasing the bodies glucose production. I.e. never adding external sugar into the body at all during treatment.

      • rowinxavier@lemmy.world
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        1 day ago

        Yep, and surviving longer increases cancer rates. Cancer used to be a death sentence, now it is far less so. Many cancers which were a short time from death at diagnosis are now routine to remove or fix. Others that were soon fatal have 5 year survival over 90%, and some are even higher.

        We haven’t cured cancer just like we haven’t cured industrial accidents, but honestly, so few people are eaten by hungry machines and left disfigured that it is likely you know less than a handful. Not cured but reduced to a much more manageable level.

  • aarch0x40@lemmy.world
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    3 days ago

    There are preventative measures but they’re all based on the rich not poisoning everyone for profit.

  • potoooooooo ☑️@lemmy.world
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    2 days ago

    Also who is out there making sure all of these incredible discoveries are accessible to mice more broadly, outside the labs?

    This IS happening, right?

      • MrScottyTay@sh.itjust.works
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        2 days ago

        The fact that we are not the animals they test on so they can never guarantee it’ll react to humans the same way it does to the animals? That doesn’t follow logically?

        • prole@lemmy.blahaj.zone
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          2 days ago

          No, it does not. Saying we might not find x treatment because it didn’t work on mice says absolutely nothing about the actual efficacy of testing on mice.

          • MrScottyTay@sh.itjust.works
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            2 days ago

            It does if it diverts attention away from other potential cures, not to mention making the animals’ sacrifices even more in vain

              • MrScottyTay@sh.itjust.works
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                1 day ago

                I’m not the expert but it seems naive to think animal testing is the one and only way. It’s just an already established norm with some regions requiring it for eligibility of sale, that’s why it’s still as prevalent as it is

                • OldChicoAle@lemmy.world
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                  1 day ago

                  But what could replace it? Genuinely curious. I used to do animal studies in grad school. I don’t see a better option for making sure this new drug doesn’t kill Grandma.

        • echindod@programming.dev
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          2 days ago

          It is theoretically possible that we are basal in such away that mice are derived given a certain ailment, that a treatment doesn’t work on mice. However we are so damn closely related to mice that probability is vanishingly small, and in such cases where it is known about, they actually genetically modify the mouse to account for it.

          They used to do fertility tests on hamster ovum to see if a human male’s sperm was viable. We are fucking close enough to hamsters a human sperm can cause a hamster ovum to start to divide.

          Granted, I will agree with you: much animal testing is fucking horrific and deplorable. But it is generally reliable.

  • the_q@lemmy.zip
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    2 days ago

    Cancer can’t be cured because it isn’t 1 thing. And animal testing regardless of the benefit humans may receive is morally wrong.

    • Credibly_Human@lemmy.world
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      2 days ago

      And animal testing regardless of the benefit humans may receive is morally wrong.

      You can say whatever you want, but just because you feel it really hard doesnt mean it will be convincing to other people.

      In this particular case, I think animal testing is moral as fuck, because why in the fuck would I possibly value animal lives even close to that of a human or myself.

        • jet@hackertalks.com
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          7 hours ago

          Your philosophy is antithetical to existence.

          Being alive kills other things, nature is competition. From bacteria and viruses in your body constantly being killed, to animals in the food supply (even veggies and croplands have pest control), just living in a safe community relies on the killing of other life: removing dangerous animals from the community, keeping pests out of food stores, keeping the water clean (kills water based life)

          The phone you are using is at the end of a very complicated supply chain that mines resources from the earth, which requires killing animals… Moving resources across the earth, which requires killing animals (fish hit by boats, animals run over by cars, birds hit by trucks, pest control in all the production and storage facilities), etc.

        • Credibly_Human@lemmy.world
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          2 days ago

          Because I care about me more than any other animal.

          If someone tried to kill you, would you just let them or not?

          Any sane answer says you value you more than someone else.

          Its crazy you find this opinion applied to animals to be offensive.

          • the_q@lemmy.zip
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            2 days ago

            Humans, particularly those in modern societies, live outside of natural order. We don’t contribute anything to it and just use it up. We slaughter millions of animals that we first rape to keep manufacturing them like their products. The animals were experiment in often never see the sky or feel the earth. You matter more than them?

            Yeah, I’m the crazy one…

            • Credibly_Human@lemmy.world
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              2 days ago

              Yup, that sounds crazy AF.

              Its a wonder you think you’ll convert anyone just by sounding batshit insane.

              I’m human. You think I would think my own species matters less than a different one? No other species thinks differently, why would we feel any different, especially given our massively different capabilities thought wise?

              • the_q@lemmy.zip
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                2 days ago

                I know I won’t change anyone’s mind.

                What other species kills at the level humans do? The shear fact you mention our capabilities proves my point; we do horrible things when we have the capability to choose not to.

                • Credibly_Human@lemmy.world
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                  2 days ago

                  I know I won’t change anyone’s mind.

                  So why are you spouting off about it? To what end?

                  What other species kills at the level humans do? The shear fact you mention our capabilities proves my point; we do horrible things when we have the capability to choose not to.

                  This could apply for so many things, but not testing for medical purposes. Thats you being irrationally idealistic past the point of stupidity.

    • phdepressed@sh.itjust.works
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      2 days ago

      So what, we just test things in a dish and then hope it works in a complex organism? Because the other alternative is human testing.

        • Credibly_Human@lemmy.world
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          2 days ago

          The funny thing about this very dumb take, is if the people who believed it followed through, the idea would eventually die out.

            • Credibly_Human@lemmy.world
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              2 days ago

              Dying vs using medicines that had any animal testing involved in their creation.

              This wasn’t particularly complex, but maybe complex for someone with your take.