WEBVTT 00:00:01.507 --> 00:00:03.396 In 2003, 00:00:03.420 --> 00:00:06.333 when we sequenced the human genome, 00:00:06.357 --> 00:00:10.279 we thought we would have the answer to treat many diseases. 00:00:10.974 --> 00:00:13.631 But the reality is far from that, 00:00:14.782 --> 00:00:16.703 because in addition to our genes, 00:00:16.727 --> 00:00:21.297 our environment and lifestyle could have a significant role 00:00:21.321 --> 00:00:23.869 in developing many major diseases. NOTE Paragraph 00:00:23.893 --> 00:00:27.473 One example is fatty liver disease, 00:00:27.497 --> 00:00:31.580 which is affecting over 20 percent of the population globally, 00:00:31.604 --> 00:00:34.638 and it has no treatment and leads to liver cancer 00:00:34.662 --> 00:00:36.085 or liver failure. 00:00:37.517 --> 00:00:42.261 So sequencing DNA alone doesn't give us enough information 00:00:42.285 --> 00:00:44.517 to find effective therapeutics. NOTE Paragraph 00:00:44.541 --> 00:00:48.297 On the bright side, there are many other molecules in our body. 00:00:48.321 --> 00:00:52.301 In fact, there are over 100,000 metabolites. 00:00:52.325 --> 00:00:56.621 Metabolites are any molecule that is supersmall in their size. 00:00:57.193 --> 00:01:02.165 Known examples are glucose, fructose, fats, cholesterol -- 00:01:02.189 --> 00:01:03.699 things we hear all the time. 00:01:04.273 --> 00:01:07.256 Metabolites are involved in our metabolism. 00:01:08.066 --> 00:01:12.094 They are also downstream of DNA, 00:01:12.118 --> 00:01:17.200 so they carry information from both our genes as well as lifestyle. 00:01:17.224 --> 00:01:22.873 Understanding metabolites is essential to find treatments for many diseases. NOTE Paragraph 00:01:22.897 --> 00:01:25.109 I've always wanted to treat patients. 00:01:25.934 --> 00:01:29.792 Despite that, 15 years ago, I left medical school, 00:01:29.816 --> 00:01:31.781 as I missed mathematics. 00:01:33.019 --> 00:01:35.955 Soon after, I found the coolest thing: 00:01:36.692 --> 00:01:39.455 I can use mathematics to study medicine. 00:01:41.026 --> 00:01:46.239 Since then, I've been developing algorithms to analyze biological data. 00:01:47.092 --> 00:01:49.375 So, it sounded easy: 00:01:49.399 --> 00:01:53.000 let's collect data from all the metabolites in our body, 00:01:53.024 --> 00:01:58.152 develop mathematical models to describe how they are changed in a disease 00:01:58.176 --> 00:02:01.164 and intervene in those changes to treat them. NOTE Paragraph 00:02:02.488 --> 00:02:05.960 Then I realized why no one has done this before: 00:02:07.230 --> 00:02:08.917 it's extremely difficult. NOTE Paragraph 00:02:08.941 --> 00:02:10.028 (Laughter) NOTE Paragraph 00:02:10.052 --> 00:02:12.464 There are many metabolites in our body. 00:02:12.783 --> 00:02:15.283 Each one is different from the other one. 00:02:15.307 --> 00:02:19.035 For some metabolites, we can measure their molecular mass 00:02:19.059 --> 00:02:21.652 using mass spectrometry instruments. 00:02:21.676 --> 00:02:26.069 But because there could be, like, 10 molecules with the exact same mass, 00:02:26.093 --> 00:02:27.900 we don't know exactly what they are, 00:02:27.924 --> 00:02:30.698 and if you want to clearly identify all of them, 00:02:30.722 --> 00:02:33.826 you have to do more experiments, which could take decades 00:02:33.850 --> 00:02:35.564 and billions of dollars. NOTE Paragraph 00:02:36.207 --> 00:02:41.770 So we developed an artificial intelligence, or AI, platform, to do that. 00:02:41.794 --> 00:02:44.638 We leveraged the growth of biological data 00:02:44.662 --> 00:02:49.086 and built a database of any existing information about metabolites 00:02:49.110 --> 00:02:52.238 and their interactions with other molecules. 00:02:52.262 --> 00:02:55.686 We combined all this data as a meganetwork. 00:02:55.710 --> 00:02:59.106 Then, from tissues or blood of patients, 00:02:59.130 --> 00:03:01.881 we measure masses of metabolites 00:03:01.905 --> 00:03:05.164 and find the masses that are changed in a disease. 00:03:05.188 --> 00:03:08.378 But, as I mentioned earlier, we don't know exactly what they are. 00:03:08.402 --> 00:03:13.537 A molecular mass of 180 could be either the glucose, galactose or fructose. 00:03:13.561 --> 00:03:15.580 They all have the exact same mass 00:03:15.604 --> 00:03:17.691 but different functions in our body. 00:03:17.715 --> 00:03:21.302 Our AI algorithm considered all these ambiguities. 00:03:21.326 --> 00:03:24.062 It then mined that meganetwork 00:03:24.086 --> 00:03:28.439 to find how those metabolic masses are connected to each other 00:03:28.463 --> 00:03:30.421 that result in disease. 00:03:30.445 --> 00:03:32.683 And because of the way they are connected, 00:03:32.707 --> 00:03:37.030 then we are able to infer what each metabolite mass is, 00:03:37.054 --> 00:03:39.978 like that 180 could be glucose here, 00:03:40.002 --> 00:03:42.553 and, more importantly, to discover 00:03:42.577 --> 00:03:45.944 how changes in glucose and other metabolites 00:03:45.968 --> 00:03:47.473 lead to a disease. 00:03:47.497 --> 00:03:50.492 This novel understanding of disease mechanisms 00:03:50.516 --> 00:03:55.008 then enable us to discover effective therapeutics to target that. NOTE Paragraph 00:03:55.601 --> 00:03:59.446 So we formed a start-up company to bring this technology to the market 00:03:59.470 --> 00:04:01.275 and impact people's lives. 00:04:01.722 --> 00:04:05.267 Now my team and I at ReviveMed are working to discover 00:04:05.291 --> 00:04:10.396 therapeutics for major diseases that metabolites are key drivers for, 00:04:10.420 --> 00:04:12.317 like fatty liver disease, 00:04:12.341 --> 00:04:15.265 because it is caused by accumulation of fats, 00:04:15.289 --> 00:04:17.762 which are types of metabolites in the liver. 00:04:17.786 --> 00:04:21.726 As I mentioned earlier, it's a huge epidemic with no treatment. NOTE Paragraph 00:04:21.750 --> 00:04:24.474 And fatty liver disease is just one example. 00:04:24.498 --> 00:04:28.676 Moving forward, we are going to tackle hundreds of other diseases 00:04:28.700 --> 00:04:30.193 with no treatment. 00:04:30.217 --> 00:04:34.771 And by collecting more and more data about metabolites 00:04:34.795 --> 00:04:38.339 and understanding how changes in metabolites 00:04:38.363 --> 00:04:40.765 leads to developing diseases, 00:04:40.789 --> 00:04:44.278 our algorithms will get smarter and smarter 00:04:44.302 --> 00:04:48.498 to discover the right therapeutics for the right patients. 00:04:48.522 --> 00:04:52.292 And we will get closer to reach our vision 00:04:52.316 --> 00:04:56.179 of saving lives with every line of code. NOTE Paragraph 00:04:56.203 --> 00:04:57.524 Thank you. NOTE Paragraph 00:04:57.548 --> 00:05:01.375 (Applause)