this post was submitted on 01 Nov 2023
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Lawrence Faucette, the second living person to receive a genetically modified pig heart in a transplant, has died six weeks after the experimental procedure. The University of Maryland Medical Center, where the experimental procedure had been performed, said the heart began to show signs of rejection in recent days.

“Mr. Faucette’s last wish was for us to make the most of what we have learned from our experience, so others may be guaranteed a chance for a new heart when a human organ is unavailable. He then told the team of doctors and nurses who gathered around him that he loved us. We will miss him tremendously,” Dr. Bartley Griffith, clinical director of the Cardiac Xenotransplantation Program at the University of Maryland School of Medicine, said in a statement. Griffith had performed the experimental surgery.

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[–] ArugulaZ@kbin.social 112 points 1 year ago (1 children)

My grandpa had a pig heart valve, and that thing lasted way longer than its warranty suggested. Yeah, he was told up front it would last ten years, but he got more out of it.

[–] remotelove@lemmy.ca 77 points 1 year ago (1 children)

That's good to hear. The return policy for those things tend to be absolute garbage.

[–] Sir_Simon_Spamalot@lemmy.world 15 points 1 year ago (1 children)

One could say he's past the point of no return.

[–] scinde@discuss.tchncs.de 7 points 1 year ago

The final threshold.

[–] Dazza@lemmy.world 95 points 1 year ago (2 children)

A lot of people think that regular human transplants are problem free but the vast majority of them are rejected by the receiver. If it’s for a life saving procedure it can only extend the life span by so much…

[–] ZapBeebz_@lemmy.world 56 points 1 year ago (2 children)

My dad had a double lung transplant several months ago...we were told by his transplant team that, with transplants, rejection is a "when", not an "if". However, if caught early enough, the docs can do an incredible amount to combat rejection.

[–] lennybird@lemmy.world 18 points 1 year ago (8 children)

Complete layperson here but it kind of astounds me that we haven't cracked the code for this friend-or-foe identification. One would think there is some identifier or expression that is evaluated by the immune system and if we could match that we'd be golden but clearly not that simple.

[–] SomeoneElse@lemmy.ca 39 points 1 year ago (1 children)

We can’t even cure autoimmune diseases yet. Why the fuck has my immune system decided my own tissues are the enemy?! Such a dick move.

[–] figaro@lemdro.id 6 points 1 year ago

Fucking confused white blood cells need to figure out their shit

[–] jballs@sh.itjust.works 18 points 1 year ago (2 children)

I started reading the book Immune by the team that runs the Kurzgesagt (In a Nutshell) YouTube channel. The book is written for laypeople like us to understand, but I didn't get very far before going "holy shit this is ridiculously complicated". Honestly, just the fact that scientists understand any of this astounds me.

[–] Chetzemoka@startrek.website 9 points 1 year ago

Rheumatologists are practicing alchemy, I'm convinced.

[–] stella@lemm.ee 4 points 1 year ago* (last edited 1 year ago)

Years of dedication, my friend.

Surprisingly, things become simpler when there are more eyes looking at them. The more esoteric something is, the harder it will be to grasp because there are fewer resources to help you.

[–] Elivey@lemmy.world 8 points 1 year ago

Taking immunology right now, it's incredibly complicated. Immune cells aren't like any other cells in our bodies, they're absolutely bonkers.

[–] thenightisdark@lemmy.world 6 points 1 year ago

Our bodies are just winging it. It's both beautiful and goodness and all kinds of other things but it's a bit philosophical at times.

I had ITP. Autoimmune something which means they don't know what caused it but my body stopped acknowledging that parts of my blood cell, not the entire one just a piece of it, we're not me. Of course not me gets flushed out.

But the fancy words for part of a blood cell is called a platelet if you don't have any platelets you don't clot. As you can probably pick up not being able to clot is a big problem. I was in danger of bleeding out because my body decided to take out all my platelets.

Seems like an easy problem. If a whole blood cell is me because the DNA matches and all kinds of other things, obviously one cell of me is one cell of me. But if you take one cell of me and you break it up into pieces is it still one cell of me? By definition is not it is 50% of me....

So one cell of me is obviously me and one cell of you is obviously you but what happens when we get into percents at what percent does my cell stop becoming me?

[–] GladiusB@lemmy.world 6 points 1 year ago

Biology is not as simple as 1s and 0s. We want it too be. But it's just more complex.

[–] DarkroomDoc@lemmy.sdf.org 2 points 1 year ago (2 children)

Your body has the miraculous ability to identify ANYTHING that isn’t itself: viruses, fungi, bacteria, even lots of nearly-self things like cancer.

It’s likely not a solvable problem.

[–] hondaguy97386@sh.itjust.works 8 points 1 year ago

Oh it is... we just need to get over the idiots that don't like stem cell research. If we could clone and grow our own organs it would be a huge step.

[–] stella@lemm.ee 4 points 1 year ago

It’s likely not a solvable problem.

I doubt that.

[–] stella@lemm.ee 2 points 1 year ago

Fair enough.

These are very complicated processes that are difficult to interpret with such a (relatively) small number of people looking at it.

[–] stella@lemm.ee -3 points 1 year ago (1 children)

Honestly, this might sound weird, but if my body ever got to that point, I'd rather just go die in a war.

Better to go out with a bang than a wimper, imo.

[–] max@lemmy.world 1 points 1 year ago

Lmao yeah you say that now

[–] LilB0kChoy@lemm.ee 10 points 1 year ago (1 children)

I’m just curious if you have data behind this?

My understanding is that rejection related deaths in solid organ transplant recipients is only ~18% and that it is actually trending downward.

[–] roguetrick@kbin.social 79 points 1 year ago* (last edited 1 year ago)

It's tough, these folks are often already in multiorgan failure because those organs were trying to hold up for their failing heart. So now you've got shot kidneys and lungs but a brand new heart to try and hold up those failing organs. Then you end up right back into heart failure.

[–] stella@lemm.ee 56 points 1 year ago (1 children)

I don't want people to see this as a failure.

Experiments are how we gain new information to try better the next time.

[–] Veneroso@lemmy.world 45 points 1 year ago

Ultimately these experiments are reserved for people who are ineligible for traditional heart transplants. This person was granted an extra six weeks with their family which is easy to overlook but the family likely cherished every moment.

[–] SeaJ@lemm.ee 23 points 1 year ago* (last edited 1 year ago) (1 children)

I guess we'll have to wait a bit to find out what killed him. The first person died due to several things like his condition and the heart had a pig virus.

[–] FlyingSquid@lemmy.world 15 points 1 year ago (1 children)

The pathogen issue is a real hurdle to overcome. I am wondering if we will get viable 3D printed hearts before we get viable transplants from other species.

3D-printed or stem-cell grown so they’re just new, hot-swappable copies of our own organs, minus defects thanks to CRISPR 🤯

[–] lexile6450@sh.itjust.works 9 points 1 year ago (1 children)

Griffith had performed the experimental surgery

Fitting name

[–] wildginger@lemmy.myserv.one 3 points 1 year ago (1 children)
[–] Whirling_Cloudburst@lemmy.world -3 points 1 year ago (1 children)

This is what OP is talking about: Griffin

[–] remotelove@lemmy.ca 5 points 1 year ago* (last edited 1 year ago)

What about: https://berserk.fandom.com/wiki/Griffith

I don't know anything about that lore, but it may be a better match.