Why Can We Regrow A Liver (But Not A Limb)?

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  • čas přidán 3. 06. 2015
  • Unlike lizards, humans can’t regrow limbs. But we can kinda-sorta regenerate our livers. Ceri, an undergrad in Biology and Comparative Media Studies at MIT, explains how and why.
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    made with love at MIT
    Creative Commons: CC BY-NC-SA, MIT
    k12videos.mit.edu/terms-and-co...
    Hosted by: Ceri Riley
    Written by: Elizabeth Choe & Ceri Riley
    Additional Scripting by: George Zaidan
    Content Reviewer: Dr. Heather Fleming, Prof. Sangeeta Bhatia
    Executive Producer & Doodles: Elizabeth Choe
    Director: George Zaidan
    Camera: Adam Morrell
    Editor & Motion Graphics: Per Hoel
    Theme song: Anthony Thomas & Neil Aggarwal
    Music: “Reverie (small theme)” by _ghost (ccmixter.org/files/_ghost/25389)
    Liver cell images courtesy of MIT’s Laboratory for Microscale Regenerative Technologies (lmrt.mit.edu/)
    Special thanks:
    Stephen Ayer & Jabberwock Reptiles (jabberwockreptiles.com/)
    Dr. Shannon Hughes
    Dr. P. Connor Johnson
    Dr. Heather Fleming & Prof. Sangeeta Bhatia of MIT’s Laboratory for Microscale Regenerative Technologies (lmrt.mit.edu/)

Komentáře • 81

  • @RRP3168
    @RRP3168 Před 5 lety +46

    Good to know my liver regenerates! Party on dude!!!!

  • @ForeverMan
    @ForeverMan Před 8 lety +14

    this channel has awesome vids, thank for the content

  • @koekje00005
    @koekje00005 Před 6 lety +1

    Great video, always wondered about this

  • @suphaters
    @suphaters Před 4 lety +1

    This is sooooooo interesting. Thank you.

  • @brandontea3815
    @brandontea3815 Před 5 lety +3

    I always wanted to join MIT... for science!

  • @radhakrishnanvadakkepat8843

    Good topic revisiting Evaluation.

  • @anuvab_biswas
    @anuvab_biswas Před 3 lety

    this was such a good video.

  • @manjunathl5000
    @manjunathl5000 Před 3 lety

    Informative sister thanks...

  • @deuss001
    @deuss001 Před 4 lety +1

    Wouldn’t you need an ‘amniotic sac’, with stem cells systematic to the organ your trying to clone?

  • @patoteto2
    @patoteto2 Před 3 lety

    This is so interesting

  • @RaviSingh-sl6qx
    @RaviSingh-sl6qx Před 4 lety

    Awesome girl and awesome video thanks !

  • @manishKumar-cg3cl
    @manishKumar-cg3cl Před 5 lety

    how may day it take to regenerate liver cell

  • @xaviermagnate
    @xaviermagnate Před 3 lety +2

    Our liver is the key to our existence.

  • @student_of_God
    @student_of_God Před 3 lety +4

    Thanks!
    Now I can continue drinking peacefully

  • @80WooR
    @80WooR Před 3 lety

    Got em back. { Keep going bois. }

  • @DeanLol313
    @DeanLol313 Před 24 dny

    has no one thought of this in 5 - 2 years

  • @ruturajpokemon1
    @ruturajpokemon1 Před 9 lety +2

    Can we not preserve pluripotent stem cells elsewhere artificially?

    • @maniacalcactus4705
      @maniacalcactus4705 Před 9 lety +1

      Ruturaj Gole I believe that it is possible to preserve pluripotent stem cells. However, ethical concerns have been raised because of an embryo's inability to stop this procedure. The most likely way that we will be able to grow limbs is by growing stem cells artificially.

  • @ryarod
    @ryarod Před 3 lety +2

    This might draw a little controversy, but: Why not just artificially conceive a human zygote, extract the pluripotent stem cells, and inject them into an injured patient?
    Whether or not the adult human body even knows what to do with the pluripotent stem cells would be its own major question- and/or group of questions- to answer, and a worthy one to pursue in my opinion.

  • @tarajihillard2890
    @tarajihillard2890 Před rokem +1

    I wonder if there are pains as it regrows

  • @robertcooper1952
    @robertcooper1952 Před měsícem +1

    I'll drink to that!

  • @Rishibasumatary
    @Rishibasumatary Před 6 lety +2

    this is what I was searching for..and she is so sweet and beautiful..

  • @dankastd4289
    @dankastd4289 Před 21 dnem

    Cool shit

  • @xenoidaltu601
    @xenoidaltu601 Před 6 lety +2

    Sometimes reptiles behave as if they had superpowers.

    • @ShogunSRT
      @ShogunSRT Před 5 lety +1

      Exactly, everytime I try to catch a lizard they run like they're the flash...

    • @mw6ngi0
      @mw6ngi0 Před 4 lety +1

      Some can jump high as fuck too.

  • @sowbad1809
    @sowbad1809 Před 6 lety +11

    Can’t we regenerate skin and hair too?

    • @pompom2621
      @pompom2621 Před 5 lety

      WizFiz yeah I guess we do but it depends because we do see cancer patients without hair and that’s because of their uncontrolled growth of cells.

    • @jakewest7787
      @jakewest7787 Před 4 lety

      @@pompom2621 and chemotherapy?

    • @elmilias3186
      @elmilias3186 Před 3 lety

      Pompom no it is because chemo that your hair falls off because chemo kills cancer cells and good cells

  • @markjosephlagmay9371
    @markjosephlagmay9371 Před 3 lety

    So if I activate my stem cells again I will become like Deadpool and wolverine and able to regenerate my own cells and missing limbs and missing organs?

  • @R3TR0J4N
    @R3TR0J4N Před 5 lety

    as long as in talks of regrowth, there's cancer

  • @irgendwer3610
    @irgendwer3610 Před 6 lety +3

    nice video, though this comment section sucks

  • @allenmoses110
    @allenmoses110 Před 3 měsíci

    It has nothing to do with size. A tiny mouse cannot regenerate!

  • @PrettyVv45
    @PrettyVv45 Před 5 lety

    The only reason I clicked this was bc I have a leopard gecko lol

  • @EasyBillions
    @EasyBillions Před 3 lety

    Project power lol

  • @ilovecubes8598
    @ilovecubes8598 Před 5 lety +4

    As mind blowing as it may be, to the unbelievers, I believe that you can heal to the level that you believe. As in 'Biology of Belief'... Lizards were not told by 'doctors' that they couldn't heal.

    • @mavimeth5385
      @mavimeth5385 Před 2 lety +2

      if that was the case then there should be at least one individiual who has regenerated his limb.it never occurred not even once

    • @psychedelaholic
      @psychedelaholic Před rokem

      @@DEGUIDERDeath does not exist until the moment one experiences it within their own consciousness.

  • @fiercefighter5032
    @fiercefighter5032 Před 8 lety

    My uncle told me this

  • @LW-bn7lm
    @LW-bn7lm Před 2 lety

    We can regrow our liver?

  • @Dee-bg5qy
    @Dee-bg5qy Před 4 lety +2

    We regenerate skin, which is our largest organ. We can also regenerate our ribs, since God needed Adam's rib to create Eve.

    • @Dee-bg5qy
      @Dee-bg5qy Před 3 lety +1

      @MEME MAN We can. Doctors have proven this via stemcell research. One of most potent areas for stem cells is the rib. If cut correctly in order to extract stem cells the rib will grow back.

    • @Dee-bg5qy
      @Dee-bg5qy Před 3 lety

      @MEME MAN That's fair. If I say something I need to be willing to support it. Here you go.
      news.usc.edu/68485/rib-regeneration-studied-in-mammals/
      Please respond after reading to confirm, in order for everyone reading this after us can confirm that you received what you asked.

    • @Dee-bg5qy
      @Dee-bg5qy Před 3 lety +1

      @MEME MAN This sounds like semantics. A piece of rib "is" still a rib, is it not? Furthermore, Moses wrote Genesis 3,900 years ago, meanwhile USC is just now discovering this reality in 2014. I'm going to conclude that the bible knows more about this than institutions that are just now discovering the basics of what was written 3,900 years ago. Think about it, the same story also said that God put a "great sleep" over Adam. That also sounded pretty ridiculous to folks until medical anesthesia was discovered in the 1840's. Maybe the doctors are the novices here...did you ever consider that? Maybe the doctors are the one's who don't know enough at this point. God isn't verifying the Doctor's, but the Doctor's verifying God.

    • @Dee-bg5qy
      @Dee-bg5qy Před 3 lety

      @MEME MAN (That's like saying a coma is the same as death.) I doubt comparing a rib to rib is the same as comparing long duration of unconciousness to death, as they are not the same. This is why trying to respond to something like "show me actual proof that God exists", when you're engaging in conversation where samantics are used with such determination in an effort to avoid admission that the medical field has proven what a book 3,900 year old has written in it would be futile on my part. The irony here isnt even the rib, its the fact that God took the rib to create woman, and doctors today take the rib in order to extract stem cells in an effort to grow limbs, once again showing that this 3,900 year old book knew something that we're just now beginning to understand. So it's crystal clear to me that I cant show proof of God to anyone who can't even see this connection...or dont want to see this connection, whatever is the most accurate statement.

    • @Dee-bg5qy
      @Dee-bg5qy Před 3 lety

      @MEME MAN (that would explain a lot of ancient inventions and fast evolution of technology.) Or maybe your theory is your way of denying God.

  • @sanjeev328
    @sanjeev328 Před 7 lety +6

    You're beautiful and have sweet voice 😄☺

  • @greg77389
    @greg77389 Před 8 lety +4

    There was an old man who sliced off his finger and grew it back completely using something in pigs bladder...

    • @thesnare100
      @thesnare100 Před 7 lety +2

      that turned out to be a hoax

    • @mavimeth5385
      @mavimeth5385 Před 2 lety

      it was just denaturated extracellular matrix dust.fingertips regenerate if not stiched anyway

  • @SS-vb7pp
    @SS-vb7pp Před 5 lety

    Hurry MIT, and future out how i can keep drinking alcohol for another 50 years on my regenerated liver..... Times running out!!!!

  • @MrJayPuff
    @MrJayPuff Před 3 lety

    you are so pretty gotta be honest i got distracted alot during the video because of it

  • @tailsjr6662
    @tailsjr6662 Před rokem

    This suks

  • @parrrishbush4457
    @parrrishbush4457 Před 8 lety +5

    God is a fact evolution is a theory

    • @varunik5233
      @varunik5233 Před 8 lety +10

      God hasn't been proven so He's also a theory.

    • @tehreem1725
      @tehreem1725 Před 8 lety +1

      +Varuni K God is not a theory in the first place!
      to deny god people made theories and fake proofs but denying God is denying one own self and whole reason of existence!

    • @varunik5233
      @varunik5233 Před 8 lety +7

      Tehreem shaikh Your proof? Other than a book written thousands of years ago that is.

    • @varunik5233
      @varunik5233 Před 8 lety +9

      Tehreem shaikh I really hope you don't become a lawyer. That would really suck for your client

    • @tehreem1725
      @tehreem1725 Před 8 lety

      +Varuni K yes your wish is granted 😂

  • @thomasmahase
    @thomasmahase Před 8 lety +1

    Lizards can't regrow legs and neither can we however they can regrow tails which we dont have, we have no use for a tail so although that may be cool an all we have evolved out of it so we arent catching up to them.. how does regrow tail = regrow human limbs?

    • @thesnare100
      @thesnare100 Před 7 lety

      they can, not all lizards, but newts and salamanders.