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

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  • Опубликовано: 3 июн 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/)

Комментарии • 79

  • @RRP3168
    @RRP3168 5 лет назад +46

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

  • @ForeverMan
    @ForeverMan 8 лет назад +14

    this channel has awesome vids, thank for the content

  • @koekje00005
    @koekje00005 6 лет назад +1

    Great video, always wondered about this

  • @suphaters
    @suphaters 4 года назад +1

    This is sooooooo interesting. Thank you.

  • @radhakrishnanvadakkepat8843
    @radhakrishnanvadakkepat8843 5 лет назад

    Good topic revisiting Evaluation.

  • @brandontea3815
    @brandontea3815 5 лет назад +3

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

  • @manjunathl5000
    @manjunathl5000 3 года назад

    Informative sister thanks...

  • @student_of_God
    @student_of_God 2 года назад +4

    Thanks!
    Now I can continue drinking peacefully

  • @anuvab_biswas
    @anuvab_biswas 3 года назад

    this was such a good video.

  • @xaviermagnate
    @xaviermagnate 3 года назад +2

    Our liver is the key to our existence.

  • @patoteto2
    @patoteto2 3 года назад

    This is so interesting

  • @RaviSingh-sl6qx
    @RaviSingh-sl6qx 4 года назад

    Awesome girl and awesome video thanks !

  • @deuss001
    @deuss001 4 года назад +1

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

  • @ryarod
    @ryarod 3 года назад +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.

  • @80WooR
    @80WooR 3 года назад

    Got em back. { Keep going bois. }

  • @manishKumar-cg3cl
    @manishKumar-cg3cl 5 лет назад

    how may day it take to regenerate liver cell

  • @sowbad1809
    @sowbad1809 6 лет назад +11

    Can’t we regenerate skin and hair too?

    • @pompom2621
      @pompom2621 5 лет назад

      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 4 года назад

      @@pompom2621 and chemotherapy?

    • @elmilias3186
      @elmilias3186 3 года назад

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

  • @tarajihillard2890
    @tarajihillard2890 Год назад +1

    I wonder if there are pains as it regrows

    • @hfdcjiirjmcfi
      @hfdcjiirjmcfi 8 месяцев назад

      For human livers or lizard limbs?

  • @ruturajpokemon1
    @ruturajpokemon1 9 лет назад +2

    Can we not preserve pluripotent stem cells elsewhere artificially?

    • @maniacalcactus4705
      @maniacalcactus4705 9 лет назад +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.

  • @xenoidaltu601
    @xenoidaltu601 5 лет назад +2

    Sometimes reptiles behave as if they had superpowers.

    • @ShogunSRT
      @ShogunSRT 5 лет назад +1

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

    • @mw6ngi0
      @mw6ngi0 3 года назад +1

      Some can jump high as fuck too.

  • @robertcooper1952
    @robertcooper1952 4 дня назад

    I'll drink to that!

  • @Rishibasumatary
    @Rishibasumatary 6 лет назад +2

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

  • @markjosephlagmay9371
    @markjosephlagmay9371 3 года назад

    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?

  • @SL4PSH0CK
    @SL4PSH0CK 5 лет назад

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

  • @irgendwer3610
    @irgendwer3610 6 лет назад +3

    nice video, though this comment section sucks

  • @allenmoses110
    @allenmoses110 2 месяца назад

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

  • @PrettyVv45
    @PrettyVv45 5 лет назад

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

  • @Dee-bg5qy
    @Dee-bg5qy 4 года назад +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 3 года назад +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 3 года назад

      @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 3 года назад +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 3 года назад

      @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 3 года назад

      @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.

  • @ilovecubes8598
    @ilovecubes8598 5 лет назад +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 2 года назад +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 Год назад

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

  • @fiercefighter5032
    @fiercefighter5032 8 лет назад

    My uncle told me this

  • @EasyBillions
    @EasyBillions 3 года назад

    Project power lol

  • @LW-bn7lm
    @LW-bn7lm 2 года назад

    We can regrow our liver?

  • @greg77389
    @greg77389 7 лет назад +4

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

    • @thesnare100
      @thesnare100 7 лет назад +2

      that turned out to be a hoax

    • @mavimeth5385
      @mavimeth5385 2 года назад

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

  • @sanjeev328
    @sanjeev328 7 лет назад +6

    You're beautiful and have sweet voice 😄☺

  • @SS-vb7pp
    @SS-vb7pp 5 лет назад

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

  • @MrJayPuff
    @MrJayPuff 3 года назад

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

  • @tailsjr6662
    @tailsjr6662 Год назад

    This suks

  • @parrrishbush4457
    @parrrishbush4457 8 лет назад +5

    God is a fact evolution is a theory

    • @varunik5233
      @varunik5233 8 лет назад +10

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

    • @tehreem1725
      @tehreem1725 8 лет назад +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 8 лет назад +7

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

    • @varunik5233
      @varunik5233 8 лет назад +9

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

    • @tehreem1725
      @tehreem1725 8 лет назад

      +Varuni K yes your wish is granted 😂

  • @thomasmahase
    @thomasmahase 8 лет назад +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 7 лет назад

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