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The medical potential of AI and metabolites

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    In 2003,
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    when we sequenced the human genome,
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    we thought we would have the answer
    to treat many diseases,
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    but the reality is far from that,
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    because in addition to our genes,
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    our environment and lifestyle
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    could have a significant role
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    in developing many major diseases.
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    One example is fatty liver disease,
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    which is affecting over 20 percent
    of the population globally
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    and it has no treatment
    and leads to liver cancer
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    or liver failure.
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    So sequencing DNA alone
    doesn't give us enough information
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    to find effective therapeutics.
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    On the bright side, there are
    many other molecules in our body.
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    In fact, there are
    over 100,000 metabolites.
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    Metabolites are any molecule
    that is super-small in their size.
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    Known examples are glucose,
    fructose, fats, cholesterol,
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    things we hear all the time.
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    Metabolites are involved
    in our metabolism.
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    They are also downstream of DNA,
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    so they carry information
    from both our genes
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    as well as lifestyle.
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    Understanding metabolites is essential
    to find treatments for many diseases.
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    I've always wanted to treat patients.
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    Despite that, 15 years ago
    I left medical school,
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    as I missed mathematics.
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    Soon after, I found the coolest thing:
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    I can use mathematics to study medicine.
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    Since then, I've been developing
    algorithms to analyze biological data.
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    So it sounded easy:
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    let's collect data from
    all the metabolites in our body,
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    develop mathematical models to describe
    how they are changed in a disease,
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    and intervene those changes to treat them.
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    Then I realized why no one
    has done this before.
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    It's extremely difficult.
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    There are many metabolites in our body.
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    Each one is different from the other one.
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    For some metabolites,
    we can measure their molecular mass
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    using mass spectrometry instruments,
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    but because there could be, like,
    10 molecules with the exact same mass,
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    we don't know exactly what they are,
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    and if you want to clearly
    identify all of them,
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    you have to do more experiments,
    which could take decades
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    and billions of dollars.
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    So we developed
    an artificial intelligence,
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    or AI, platform to do that.
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    We leveraged the growth of biological data
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    and built a database of any existing
    information about metabolites
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    and their interactions
    with other molecules.
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    We combined all this data
    as a mega-network.
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    then, from tissues or blood of patients,
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    we measured masses of metabolites
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    and find the masses
    that are changed in a disease.
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    But, as I mentioned earlier,
    we don't know exactly what they are.
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    Like a molecular mass of 180 could be
    the glucose, galactose, or fructose.
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    They all have the exact same mass,
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    but different functions in our body.
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    Our AI algorithm considered
    all these ambiguities.
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    It then mined that mega-network
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    to find how those metabolic masses
    are connected to each other
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    that result in disease,
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    and because of the way they are connected,
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    then we are able to infer
    what each metabolite mass is,
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    like that 180 could be glucose here,
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    and more importantly to discover
    how changes in glucose
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    and other metabolites
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    lead to a disease.
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    This novel understanding
    of disease mechanisms
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    then enable us to discover
    effective therapeutics to target that.
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    So we formed a startup company
    to bring this technology to the market
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    and impacts people's lives.
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    Now, my team and I at ReviveMed
    are working to discover
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    therapeutics for major diseases
    that metabolites are key drivers for,
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    like fatty liver disease,
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    because it is caused
    by accumulation of fats,
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    which are types of metabolites,
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    in the liver,
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    and as I mentioned earlier
    is a huge epidemic with no treatment.
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    And fatty liver disease
    is just one example.
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    Moving forward, we are going to tackle
    hundreds of other diseases
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    with no treatment,
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    and by collecting more and more
    data about metabolites
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    and understanding
    how changes in metabolites
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    leads to developing diseases,
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    our algorithms will get
    smarter and smarter
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    to discover the right therapeutics
    for the right patients,
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    and we will get closer to reach our vision
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    of saving lives with every line of code.
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    Thank you.
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    (Applause)
Title:
The medical potential of AI and metabolites
Speaker:
Leila Pirhaji
Description:

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Video Language:
English
Team:
closed TED
Project:
TEDTalks
Duration:
05:14

English subtitles

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