A Quick Introduction to Epigenetics - with Nessa Carey

Ғылым және технология

Epigenetic modifications change the likelihood of gene expression, and through it create phenotype changes, without altering the DNA sequence itself.
Watch the full talk: • What is Epigenetics? -...
Nessa's book "The Epigenetics Revolution" is available for purchase now - geni.us/dOYAo
Nessa Carey is a geneticist and author of The Epigenetics Revolution. She has a degree in Immunology, PhD in Virology, was a post-doctoral researcher in Human Genetics, and a senior lecturer at Imperial College London in Molecular Biology. She's also spent 10 years in the biotechnology industry and now works in the pharmaceutical sector.
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Пікірлер: 56

  • @dismissing
    @dismissing4 жыл бұрын

    I clicked on the video as soon as I read "Nessa Carey". Epigenetics Revolution deserves its well-regarded place in the pantheons of Pop-Sci Literature.

  • @KyleClements
    @KyleClements4 жыл бұрын

    After watching videos on the topic off and on for about 5 years now, and feeling utterly baffled, this was the clearest description of epigenetics I've ever come across. Thank you!

  • @glennstasse5698
    @glennstasse56984 жыл бұрын

    What a great lesson reducing such a complex topic to understandable bits! Terrific!

  • @bernardofitzpatrick5403
    @bernardofitzpatrick54034 жыл бұрын

    Great explanation - and a bonus was the humor ! :-D

  • @toued4714
    @toued47144 жыл бұрын

    Thank you for releasing this

  • @dirkbertels3872
    @dirkbertels387211 ай бұрын

    Excellent introduction to epigenetics - accessible to most of us, and for those who want to know more, inspiring enough to warrant further investigation.

  • @taotaostrong
    @taotaostrong4 жыл бұрын

    Enlightening and empowering. Thank you!

  • @eToLiveIsToDie
    @eToLiveIsToDie4 жыл бұрын

    That was a brilliant way of illustrating. Loved it.

  • @BaalFridge
    @BaalFridge4 жыл бұрын

    I, an idiot, finally understand the concept of epigenetics. Thanks.

  • @arbez101

    @arbez101

    4 жыл бұрын

    Great! Please tell us what you have learned.

  • @BaalFridge

    @BaalFridge

    4 жыл бұрын

    It's candies changing my DNA depending on variables that are not predetermined by DNA! In all seriousness I didn't understand the concept of DNA "editting itself on the fly", but now that I can see it as "candies protecting me from alcohol poisoning" it makes sense.

  • @Popcats230
    @Popcats2304 жыл бұрын

    Excellent explanation Thank you !

  • @rudmanpaul2812
    @rudmanpaul28124 жыл бұрын

    Mind is blown

  • @alejandrahuertarivas4370
    @alejandrahuertarivas43704 ай бұрын

    She's brilliant, I'm a fan ❤

  • @ManMountainManX
    @ManMountainManX4 жыл бұрын

    TY. ..

  • @levicoffman5146
    @levicoffman51464 жыл бұрын

    Oh my god everyone! Human beings are amazing!

  • @missionpupa

    @missionpupa

    4 жыл бұрын

    basically, most of the time you dont really know what you are capable of, the only way you can know is if you change your environment, your habits and your thinking.

  • @recklessroges
    @recklessroges4 жыл бұрын

    How are epigenetics transferred between generations? (Can a parent only transfer the epigenetics that they inherited + mutations? )

  • @arbez101

    @arbez101

    4 жыл бұрын

    Review findings by Dr Bruce Lipton.

  • @kevinshort3943

    @kevinshort3943

    4 жыл бұрын

    I thought they weren't reliably , and even if they are it's lost in a few generations if the condition that cause them change.

  • @WorthlessWinner

    @WorthlessWinner

    4 жыл бұрын

    Maybe there will be a longer video of this lecture discussing that topic? From what I've read, in mammals the marks are erased when sperm and egg are formed and also shortly after fertilization, so it is unlikely that marks are passed on directly. However, they can be indirectly passed on because the marks might change the way the adult behaves toward the child or the way their womb reacts to the fetus which could expose the child to an environment that establishes similar marks. In other species like worms, the erasing of marks doesn't seem to happen, so marks can be passed on more directly in them.

  • @akutenshi7023
    @akutenshi70234 жыл бұрын

    Nice

  • @chriswalford4161
    @chriswalford41614 жыл бұрын

    Is there an epigenetic effect of mood (depression, for example)?

  • @arbez101

    @arbez101

    4 жыл бұрын

    I would have to say of course there is, in as much as mood is (directly or secondarily) effected by the process of gene expression.

  • @mgd8867

    @mgd8867

    4 жыл бұрын

    Posture can effect the hormone system which I suppose is similar

  • @pgh412east
    @pgh412east4 жыл бұрын

    How can i get mine to switch off... It's on now for drugs. What would take it off

  • @arbez101

    @arbez101

    4 жыл бұрын

    I think she indicated dietary repetition can tigger gene expression, therefore habitual consumption behavior (whether food, alcohol, candy, or drugs) presumably can fuel gene expression. So switching off the consumption would have to precede switching of the gene expression, I should think.

  • @pgh412east

    @pgh412east

    4 жыл бұрын

    @@arbez101 thank you.

  • @brinx8634
    @brinx86344 жыл бұрын

    There is something here that I don't understand. If a particular gene that breaks down alcohol is permanently switched off, what happens when alcohol is reintroduced? Would it take more to get to a drunken state? Can all be switched off, and what would be the result?

  • @akankshapendharkar1387

    @akankshapendharkar1387

    4 жыл бұрын

    I think a gene like that probably wouldn't be permanently switched off, only regulated for quantity. If that does happen, alcohol metabolism will become very difficult and it might even become toxic. I don't think any environmental stimulus would really lead to switching it off permanently, as the enzyme produced won't have a negative effect on the body in the first place. The switching off would be likelier if a particular mutation in the genetic code manufactures a dangerous enzyme. I might be mistaken, this was my understanding

  • @MrRobertFarr

    @MrRobertFarr

    3 жыл бұрын

    How funny.

  • @Palatineoffacts
    @Palatineoffacts4 жыл бұрын

    Dat diamond necklace tho

  • @TheHellogs4444

    @TheHellogs4444

    4 жыл бұрын

    How do you guys notice that shit

  • @aareebjamil8929
    @aareebjamil89294 жыл бұрын

    First! I loved the insightful speech/video and I hope you keep it up.

  • @lizziesangi1602
    @lizziesangi16024 жыл бұрын

    Gin brings forth Uncle Ernie....

  • @lorenzobarbano8022
    @lorenzobarbano80224 жыл бұрын

    I'm hungry now...

  • @MrRobertFarr

    @MrRobertFarr

    3 жыл бұрын

    Yes this Ri video. Is making me hungry. I think it's the picture of sweets.

  • @angelahall4402
    @angelahall44024 жыл бұрын

    I didn't know it was a race. Lol

  • @dylangergutierrez
    @dylangergutierrez4 жыл бұрын

    First

  • @michaelbird7113
    @michaelbird71134 жыл бұрын

    Lost me, so slow.

  • @TWJfdsa
    @TWJfdsa4 жыл бұрын

    DNA what a wondrously designed molecule

  • @billschlafly4107

    @billschlafly4107

    4 жыл бұрын

    Based on the evidence DNA was designed by nature.

  • @TWJfdsa

    @TWJfdsa

    4 жыл бұрын

    @@billschlafly4107 lol- even biologists now say it appears there is design in DNA- although they say it appears- Gods creation is marvolous....

  • @kevinshort3943

    @kevinshort3943

    4 жыл бұрын

    @@TWJfdsa No they don't, at least not in the way you are implying. Why are creationist unable to tell the difference between a simile and a synonym?

  • @WorthlessWinner

    @WorthlessWinner

    4 жыл бұрын

    It's not really the DNA but the other parts of the cell interacting with it that create this complexity.

  • @WorthlessWinner

    @WorthlessWinner

    4 жыл бұрын

    @@kevinshort3943 - tbh I have heard biologists argue that DNA seems too well designed. Which is one reason they say it is a product of evolution rather than a product of non-evolutionary chemistry pubmed.ncbi.nlm.nih.gov/23601635/

  • @bluellamaslearnbeyondthele2456
    @bluellamaslearnbeyondthele24564 жыл бұрын

    Waste of time. Too basic. 8 year olds might appreciate this all the more because of the marshmallows. Anything for a mature audience?

  • @sbalogh53

    @sbalogh53

    4 жыл бұрын

    I am a mature 66 year old and found this explanation most enlightening, so definitely not a waste of time for me. I am sure a Google search for "Epigenetics" would turn up many more "mature" results.

  • @WorthlessWinner

    @WorthlessWinner

    4 жыл бұрын

    I wrote an article for my student newspaper trying to explain epigenetics for a general student audience and struggled a lot to get the main point across. I think this is a very effective analogy for that purpose. The big picture is far more important than the nuances which differ from species to species, aren't fully understood and don't alter the implications. She even includes some details that are left out of some academic journal articles that use "mature" language (e.g. the number of histone tail marks and their combinations, the structure of neucleosomes, the difference between constitutive and non-constitutive heterochromatin and their purposes, etc.) but does so with the simple concrete model of sweets.

  • @MrRobertFarr

    @MrRobertFarr

    3 жыл бұрын

    No, it's really advanced. Jelly tots, and 'switched off, forever'. Genetics is really advanced, I ask you. If it's so easy for you to understand. Now humans know this. How differently should folks behave. Now, we know about genetics?

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