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I'm pretty desensitized to stuff, but this study is a horrifying. They basically mutiliated a rat by connecting it to another rat's circulatory system, implanted a uterus and then impregnanted it. It feels like this has crossed some boundaries of ethics. It's like that Russian experiment that decapitated a dog, connected it so that blood was recirculating through its brain, and then let it wake up. It's horrifying to think we can allow this in the name of science.
I just can’t imagine how this made it past IRB approval. It doesn’t really prove anything and it seems unnecessarily cruel.
I don't want to belittle your response, but this does not seem especially beyond the pale for the sort of thing rats get subjected to.

I've done programming work for some world-class academic neuroscience/biology labs, I've taken the mandatory animal ethics trainings, and I've seen how the sausage is made. For the most part I'm actually pretty impressed at the ethical oversight that is exercised on behalf of animals, this particular university going well beyond the mandatory legal requirements imposed by the government. But rats, or at least one specific breed of rats, are fair game, and it gets pretty horrific.

As I recall, there are some lab animals that are regulated, and some are not. And I don't remember exactly which, but it seemed kind of arbitrary.
According to the pre-print, these researchers are based at "Naval Medical University, Shanghai, China" - a country with a terrible record of human rights violations and an even worse record when it comes to animal rights. Of 3,000 people surveyed in China, approximately 2,000 hadn't heard of the concept of "animal welfare". I'd be surprised if regulation on non-human animal experiements even existed in their jurisdiction.
Sometimes I wonder if Chinese scientists are going to make scientific advances that Western scientists won't, due to weaker ethical constraints enabling them to perform experiments that Western scientists can't, or lesser regulations enabling them to get the same experiments done faster and cheaper.
If only they had accelarated a COVID-19 vaccine by a few months via human challenge trials.
Yes, I'm saying, in the US, where we may pride ourselves on having standards, there are some lab animals that are exempt, and so I think there's a blind spot, where nobody (in the sense of the lay public) thinks about what's happening to them.
Is there any evidence that this type of -entirely inhumane- testing has ever yielded results that a person could argue justifies the cruelty? I feel like all I ever hear is that rat/mice testing is effectively inapplicable to humans… I don’t even know where the line is, but I feel like we’re nowhere near it, if it even exists at all.

edit, for clarity: I think be have gone well beyond wherever the ethical line is, not below/beneath… for the first time I was confused by the downvotes, maybe that explains it?

In fact there are many counter examples. Thalidomide had no negative effects on non-human animals, but created notoriously deformed children in humans. Similary, I think it was paracetamol which when tested on some non-human animal is 100% lethal, and had they tested on those species then this common, essential medicine would never have progressed to the human trial stage. A classic case is the link between lung cancer and smoking. Millions of dollars of public money went to the big tobacco companies in the name of "cancer research". Dispite being able to induce lung cancer in dogs by restraining them and forcing the to chain smoke for hours on end, these were not the results they wanted. IIIRC, it took research with human volunteers before the scientific consensus that we have today came about because the "animal models" did not represent human physiology.
> Thalidomide had no negative effects on non-human animals, but created notoriously deformed children in humans

That's not actually true; it causes birth defects in animals as well. Only limited animal testing was performed before it was approved for use in humans; more extensive animal testing, which did demonstrate birth defects, was performed only after it had been withdrawn due to causing human birth defects.

https://pubmed.ncbi.nlm.nih.gov/12677202/

I believe the studies were done with a single isomer, which was safe and is still available. The racemic mixture was sold commercially but never tested until later. IIRC the bench top process produced a single isomer, but the scaled up process messed with the chirality producing the racemic mixture.
Yeah this was the real problem with Thalidomide. It pops up as an example of "things to consider" in DD textbooks.
>In fact there are many counter examples

I think you inverted the meaning of the parent comment. They asked for exceptions where animal experiments do apply to humans, saying that the rule seems to be they don't.

> Thalidomide had no negative effects on non-human animals, but created notoriously deformed children in humans.

Thalidomide was never approved for treating in nausea in pregnant women in the US. It was prescribed off label, but the FDA rejected it for that purpose.

Why did the FDA reject it if animal tests didn’t show deformities?

To be clear, that’s not a rhetorical question. I’ve heard rumors the FDA wasn’t convinced thalidomide would be effective - which is very different from worries over fetal abnormalities.

Do you know the background there?

Transplanting a uterus to a genetic male was done many years ago, to a human, voluntarily, and of course it didn't work. This was prior to modern gender reassignment surgery.

Given the context that this experiment supposedly achieved something humans have wanted enough to risk their lives for, for quite some time, it seems like an astonishing accomplishment.

I, personally, would not trade these rats lives for a uterus, but I don't feel like I can decide for the rest of humanity.

There also must be an awful lot of research that's gone into fertility treatments in the past, was that justified, when it wasn't about the "unnatural" goal here?

The most troublesome part of the article is that any mention of ethics focuses on how this will affect humans and little is mentioned about the cruelty of treating the rats this way. I don't understand how people can be so calloused. I guess they are all fairly confident that karma is not real.
It's not that at all. The question is whether the cruelty can be justified in service of a greater good, or if it's just plain cruelty to satisfy aimless curiosity.
Why would that reasoning apply only to certain animals and not others? If it's okay to be cruel to rats for the service of the greater good, then why not dogs, apes or dolphins? Why not humans? Where and how do you draw the line?
Well there is a line. I don't think twice using insecticide when confronted to a mosquito.
Killing a mosquito is an act of self preservation, as valid now as it was 10.000 years ago. Many of us live an existence pretty removed from the threats of the wild, but we we’re not totally detached from the need to “protect” ourselves. :)
I'm not going to defend this study, but we already have a line between humans and nonhumans, particularly when legally speaking. For example, the sentences handed down for killing another human are far more severe than killing an animal. These lines already exist.
The greater good is the slipperiest slope in the history of slippery slopes. Plus, this only "applies" if you are a utilitarian. The same rationale was used by the Nazi Scientists and the Japanese Unit 751 during WWII to justify psychopathically sadistic human experiements on POWs.

Sentient beings do not want to be brutally experimented on. This self-selecting industry of sociopaths belongs in the 19th century.

>Sentient beings do not want to be brutally experimented on

This is obviously false, because transplanting a uterus to a genetic male was done on a human, voluntarily, long before this experiment.

Well, they were capable of consent and consented. I also doubt that they had their circulatory system fused with another female human by surgically splicing them together. I imagine they would have declined if that were the case.
How her suffering and death (in 1931) compared with the rats is irrelevant to my point which is just about the value of the research to humans.

I can't argue whether someone should be concerned about humans or rats and how much and what experiments are worth it. How you balance one creature's suffering with another. Nobody can or has ever answered that.

I meant to counter the idea that transplanting a uterus has to be without purpose and can only be attributed to idle cruelty.

https://en.wikipedia.org/wiki/Lili_Elbe

Evil people get away with stuff all the time.
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Is there any evidence that karma is real and/or isn’t made up concept to cope with naturally unjust world? Or is world not unjust? (Not joking. I don’t mutilate animals, neither do things that someone could call really unethical, but ethics itself always felt so synthetic to me. Nature is not ethical, it is very unceremonious for no “good” reason.)
I see no evidence for karma being real either. But I certainly wish people would have a fear of karmic justice.
I am not for pointless animal cruelty (and I can't justify this study) but still keeping in mind that when the city calls in pest exterminators, the rats will have a fairly bad time. Why are those lab rats more special?
Well they are special mainly because of the excessive cruelty they experienced.
> Why are those lab rats more special?

They are, experimental animals have and should have bigger protections against the cruelty that can get directed to them, for warranted and unwarranted reasons.

> It's like that Russian experiment that decapitated a dog, connected it so that blood was recirculating through its brain, and then let it wake up.

A side point, but that Russian dog experimentation is so creepy. I remember watching a video of it on youtube I think, and even while knowing it was all genuine footage, was in absolute stunned disbelief at what I was watching - thinking that it had to be fake.

I think if more people knew about the realities of animal testing and experimentation, they would be slightly less barbaric.
Well, I find many of the experiments on mice to be totally messed up and the justifications arbitrary. I do not therefore find this one more absurd. I think the pushback due to “male pregnancy with multiple surgeries” is unwarranted, unless all mice experiments are also called into question.

It is useful to find that uterus + pregnancy blood = major contributing factors to carrying a fetus to full term regardless of sex, as it rules many things out. It is useful criticism to understand these are not the only factors. In that light the experiment was a success and not unnecessary, unless all mice experiments are equally called into question.

Yes this did seem excessively grizzly, but then all the pushback in the latter half was on "male pregnancy", which was awfully suspicious.

Maybe it would be good to find some other conjoined circulatory systems + organ transplant studies for context.

"all mice studies" is broad. i've been a part of humane behavioral studies with rats. hell there's a "do rats laugh" study out there, and the answer is yes.

what I'm saying is there's a broad assortment of rodent studies, that vary in terms of mutilation or usefulness to society. this one rates high (especially wrt to the projects i've been a part of) on the mutilation scale and low on the usefulness scale. imagine being one of a "parabionts" throughout the gestation period of a human baby. it's not feasible.

Serious question: if we can, and are comfortable with the idea of factory farms where millions of animals are killed everyday, why should we be outraged by this?
Because condoning the first wasn’t justifiable to begin with.
The majority are fine with it, not everyone. And they are only fine with it because they are completely disconnected from it.
I do not get why this study is controversial. We routinely do stuff like freezing and transplanting embryos, or gender reassigment surgeries.

50% of population can not get pregnant. Birth rate in China and Japan is down, we need this sort of technology.

Pretty sure that stuff is controversial to the majority of the people in this planet maybe in a couple places like SF it is not but that is just because the social engineers have desensitized people, anyone even the most meat loving hunter in the world will get a tad horrified at what is described in this article. They basically mutilated a rat by connecting it to another rat's circulatory system, implanted a uterus and then impregnated it. That is just fucked up and things like GR are still pretty bonkers if you even understanding. Like a guy getting a hole that he has to dilate in order to keep open, and most descriptions of this kind of surgery they are disturbing even for the people that believe they want them...
> That is just fucked up and things like GR are still pretty bonkers if you even understanding. Like a guy getting a hole that he has to dilate in order to keep open, and most descriptions of this kind of surgery they are disturbing even for the people that believe they want them...

Do you put lemon juice on your face often, or is it reserved for special occasions? We are not sitting around a campfire, so your spooky stories about minorities - which are totes real, guys, not inaccurate in the least! - seem a tad unnecessary.

On a completely unrelated note, I'd like to mention the - irrelevant! - fact that SRS - with all its complications, such as the initial maintenance necessary to train the muscles and avoid scarring - was first created, and is very much still used, for cis people.

The reason it is controversial is because people who perform experiments on non-human animals are supposed to have be able to justify the necessity of doing such experiments, and "I was curious" is just not good enough. I expect the reason the birth rates are down in these countries is sociological. There are already too many people, I don't think we need more. There are literally millions of children in the world who need adopting.
Allowing transwomen and gay couples to have children seems like pretty good reason. If researches would dress-up their research in western rhetoric, they would be applauded.
That doesn't seem like a good reason as long as there are children who need adoption and foster care.
You can bury the entire IVF field with such arguments.

The good reason is that many people want their own children and though you might find their desire immoral, they are not bound to accept your morality standards.

I never said anything about morality. If you read my statement and think it had broad moral implications, they belong to you.
Why are rat rights a thing at all? We learned something. We learned something! Learning new knowledge is precious. Learning new knowledge is hard.

And people will throw it away on whether vermin are being "mistreated."

I also don't think that the future implications are the problem of the scientist. This discussion reminds me of how schools in the USA are expected to solve every social problem involving children. Let the scientists study their stuff. If we don't like a technology, we can just ban its use later.

> Why are rat rights a thing at all?

Because it's unethical to cause unnecessary suffering. If rats experience suffering, then we should not cause them suffering as much as reasonably possible. We wouldn't want advanced aliens to treat us like we treat rats in experiments, just because we're smarter than rats.

That is definitely a point that is made by modern ethics and is widely supported, but it’s not necessarily one that should be taken for granted. Q in Star Trek TNG treated us like this, and it’s a serious topic of debate whether we ended up better as a race as a result of his influences.

I think that’s the crux of the debate for me: Are we treating rats as well as our learnings about them are capable of supporting? Would I trust aliens to treat me with better dignity than we’ve historically treated our own ‘lesser’ species, if it’ll cure cancer?

Do we honor their social and thermal preferences? Do we design minimal experimentation and experiment judiciously? Do we monitor their pain levels using whatever means available and terminate experiments, and rats, early and painlessly — rather than force them to endure suffering for the sake of completionism?

We absolutely should want alien experimenters to treat us like rats in experiments, because we should be treating rats with the maximum respect and dignity possible to us. We certainly can’t stop motivated aliens, but we can show them by example that we treat lesser species with dignity, and maybe they’ll do the same to us.

Are we treating rats with the most dignity and respect possible? If not, then we deserve no better from aliens.

This is why it’s important to me to consider the ethics of treatment of rats. Not to end all animal testing, but to ensure that we, with our big smart brains, are able to find it in ourselves to treat well those beings we view as lesser. It sounds ridiculous to discuss it in terms of aliens, but that’s what we are to rats, and that viewpoint makes it a lot less ridiculous to consider.

ps. I would absolutely turn myself over to alien science if the need was great enough, especially if my quality of life was heading downhill, but only if I knew it would benefit the rest of you.

There was a Voyager episode where an alien species using stealth tech was performing various medical experiments on the Voyager crew to further their treatment of various ailments. Suffice to say that when the Voyager crew uncovered the alien experiments, they were not agreeable to continue. In fact, Captain Janeway was willing to destroy Voyager to stop the experimentation. And the lead alien scientist made the same pitch to Janeway about how the experiments would help many others. Janeway rejected the argument.

> I would absolutely turn myself over to alien science if the need was great enough, especially if my quality of life was heading downhill, but only if I knew it would benefit the rest of you.

That's noble of you, but I'd rather the aliens left us alone if it was between that and experimenting on us for their (or our) own good. No thanks.

Would you support experiments on live humans?
I’m reminded of Gene Hackman in Extreme Measures: if you could cure cancer, but you would have to kill a patient to do so, wouldn’t you have to try?
Humans experimentation on humans dates back to caveman Grogg eating funky-looking berries and taking one for the team.
Supporting experiment on rat doesn't necessarily mean supporting experiments on live humans.

We can arbitrarily draw the line between human and the non human.

> We can arbitrarily draw the line between human and the non human.

Giving up any pretence that there’s a rational argument to defend and not just something arbitrary only justifies the criticism.

Maybe arbitrary is not the accurate term.

I mean if the concern if experiments on live humans then why can't one just specifically address the concern and draw the line ?

You could but it would indeed be arbitrary.
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In that case every rule/law is arbitrary.
No, because not every rule/law is a case of special pleading.

If you think it's not arbitrary then you are free to make that case, and then I or someone else will point out flaws like the special pleading that is already glaring. Peter Singer's work on speciesism is a good place to find out the obstacles you will have in constructing a non-fallacious, non-arbitrary argument.

There's no rational reason to care about non-human lives at all. When we talk about pragmatic, secular ethics, we do so for the purpose of creating a stable and happy society. We know that by training other humans not to harm humans we reduce the likelihood that we will face hardship. There is no reason to include animals in this system other than that some people feel more sympathy for them. But animals can't engage in ethics with us, treating lab rats better will not make the rat species less likely to cause damage to us. Animal rights are a purely emotional impulse
> There's no rational reason to care about non-human lives at all

> Animal rights are a purely emotional impulse

That would be like saying you're going on holiday but there's no need to take account of the climate or weather.

Humans have emotions, therefore they are a consideration. To ignore emotions is not rational at all.

> We know that by training other humans not to harm humans we reduce the likelihood that we will face hardship. There is no reason to include animals in this system other than that some people feel more sympathy for them.

I, and many others throughout history would disagree with this assertion. As Tolstoy wrote: “As long as there are slaughter houses there will always be battlefields.” Psychopaths that hunt humans are well known for beginning on small animals and working their way up.

You may say that not all of society are psychopathic, but then we could ask if you would want to live somewhere where animal rights are strong, like the UK, or China, where they aren't even part of public consciousness.

If the powerful treat the less powerful badly, then I'd say it's naive to rely on their making the same arbitrary distinction between humans and other animals as you're relying on here.

Edit: missed out that very important word!

I wouldn't but I'm sure you could find volunteers somewhere in Portland.
> Why are rat rights a thing at all?

Because when one is disproportionately powerful, it's one's responsibility to maintain high standards of ethics. It's the burden of being powerful. This almost fetish way of thinking about knowledge is wrong. Just because one can do something that will benefits does not mean it should be done, let's try to have a larger circle of empathy.

This research does not provide any life saving or (afaik) improving knowledge, what gives us the right to mess with another living being just because of curiosity?

Edit: wrong word used

>what gives us the right to mess with another living being just because of curiosity?

When thinking about right, I usually go the inverse. What makes one not have that right?

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Should the mentally disabled have rights? Let the scientists study their stuff! /s
Comments calling the study pointless, but if society is going all-in on sex changes, seems like we might as well seal the deal and make MtF reassignment actually functional.

Right now just end up with a bunch of sterilized guy/girls and that's not useful for anyone.

More honorable death for the mouse than testing out the latest shampoo at least.

> Right now just end up with a bunch of sterilized guy/girls and that's not useful for anyone.

People's worth and validity are not measured by their ability to produce offspring. This isn't even specifically a transgender issue.

I don't agree with his phrasing, but I am sure that some trans people would like to have children.
This research is awe inspiring in its brilliance. The fact that humans had this perverse reaction to it is absolutely fascinating to me. And it is in a service to a greater cause.

I am happy that this work was done. We need to do more!

edit: This comment is positive on purpose. The default pessimism in these comments is unwarranted. And the research has a lot of potential. Some foreseeable. Some not.

For e.g., A lot of comments are making remarks such as, "it just shows male blood is detrimental to pregnancy." However, this isn't what the research shows.

The research demonstrates that certain proteins are required to sustain the pregnancy. That's a fairly remarkable insight. Isolating these proteins, specifying them, and then attempting to measure the precise amounts of these should help to reduce miscarriages of intentional pregnancies in our species.

That's an amazing development. It's a useful model with significant applications.

It's repulsive and horrible to the rats. We wouldn't want it done to us.
not really. They mostly showed that male blood interferes with normal female pregnancy. They could have done this through less invasive, more precise means, like transfusion, which would have allowed them to select precisely what part of male blood they would add back in.
> And it is in a service to a greater cause.

Which is?

The argument presented by scientists in the article is that they don’t believe it offers anything useful.

Those offended by this, do you see this as worse than how most animals for eating are treated? Essentially, a short time of harsh torture vs years of less harsh torture. If you do, is one okay because it’s for cheap food and the other is only for science?

I tried to phrase this as non-offending as possible, so please treat this like a serious question.

If you read the article, the controversy is because other scientists are arguing there is nothing learned here that is applicable elsewhere. In essence, it’s torture without any purpose or benefit to society.

Cruelty in animal farming is bad, but it does serve to feed human populations.

Well, bullshit aside, how many of us reading this just eat meat because it makes our taste buds feel good? 100% or 99%?

That seems even worse than torture for the pursuit of knowledge.

Yes, all-you-can-eat restaurants which serve meat should be banned before vivisection.
I know plenty of vegans and vegetarians who support the use of experimental animals for medical purposes because they like everyone else use medicines! But sometimes there is a line to be drawn, this "experiment" does a huge disservice to all legitimate research that need support from the public. Even an undergraduate could see that it wouldn't provide anything we didn't already know, it's an engineering showmanship, you don't have to be a professor in reproductive physiology to see that.
There's an ongoing and growing debate regarding the ethics of uterus transplantation ("UTx") and specifically male UTx, and it's hard not to read this study in that light - that the eventual goal of this research is its application to human beings.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6821981/

https://www.tandfonline.com/doi/full/10.1080/15532739.2019.1...

Uterine transplant offers the same promise of a solution for males or trans individuals wishing to gestate a child as it does for genetic females with UFI. Nevertheless, the Montreal Criteria require that the recipient be a genetic female. This warrants both justification and discussion. To date, only female recipients have been used in animal and human trials of uterine transplant. There are many interesting yet daunting theoretical medical issues concerning uterine transplant with a nongenetic female recipient, including the creation of adequate uterine vascularization de novo, the necessity for appropriate hormone replacement to sustain implantation and pregnancy, and the placement of the uterus in a nongynecoid pelvis.

Personally I think society needs to draw a line, somewhere. It's becoming harder to define where that line should be, but this ghoulish commodification of our bodies with its prerequisite torture of countless helpless animals is just not something I can accept as moral. How many tens of thousands of rats and chimps will we need to torture and kill for the patented FDA-approved $5 million male UTx procedure with expected multi-billion annual revenue? In the future will the rich post instagram celebrations of their purchase of a transplanted "surrogate" uterus from a female in need of the money?

The transhumanist dream of designer human bodies may eventually be inevitable, but if this is the cost we have to pay to pursue that dream with today's primitive technology, that cost is too high.

Despite downvotes, I think this is a reasonable concern, especially concerning all morally grey areas of surrogacy and black areas with current organ harvesting and past forced sterilization programs. Reproductive organs and rights to have them are much more important, so all the moral issues with transplants become more pronounced and important when reproductive organs become potential transplants.

What would CCP do in Xinjiang (or any of their death row prisoners) if there were a market for reproductive organ transplants? Voluntary participation in a market for reproductive transplants seems fraught with ethical issues. It is one thing to sell a kidney when you have too, in exchange for some amount of money and possible later health issues, but totally another if you lose the ability produce offspring. Will the hypothetical transplant sellers have position to negotiate in the full price of lost offspring?

These issues are too late to be resolved when the technology exists, because at that point there is tremendous pressure for anyone with any power to take the path of least resistance and maybe the largest personal profit. It is possible that the ethical route is not to do some kind of research (because we can), but start developing approaches we not yet can do but would result in a better future.

Studies like these will be the new norm if the gender fascists, who think that everything can be engineered, win.

We now have a "birthing biological male"!

Real life applications will follow, comrades.

While this is an interesting line of research it s too invasive to be useful to humans. Artificial wombs seem like an easier (?) to achieve goal