Role of the microbiota in asthma

Published on April 27, 2016   30 min

Other Talks in the Series: Advances in Asthma

Other Talks in the Series: Microbiota

Hi, I'm Brett Finlay. The talk today is about the Role of the Microbiota in Asthma. And I'm situated in the University of British Columbia, in Vancouver, BC.
So there's a lot of discussion about why diseases, characteristic of Western nations, are increasing. And one of the concepts that's being kicked around is something called the hygiene hypothesis, and this suggests that, perhaps, we're actually living too cleanly in our childhood now and we're not exposed to many microbes we normally would have been exposed to early in life. And there's lack of exposure early in life might mean that later in life, we actually react to these things in various autoimmune type responses. So we know that infectious disease rates have absolutely plummeted in developed countries over the last 50 years. This is due to the advent of vaccines, antibiotics, and also our quest to clean up our world. We sterilize water, we ensure food is safe, and we really have done everything in our control to get rid of microbes, and as a result, we have succeeded in really decreasing infectious disease rates. However, in those same 50 years, we've seen a massive spike in what we call Western lifestyle diseases. These are obesity, type-1 diabetes, asthma, et cetera. And this has corresponded precisely with the decreased infectious diseases. And this has led to the current concept that, well, maybe in our quest to get rid of these infections, we've actually cleaned up our world too much, and as a result, we're actually... Microbes might have something to do with playing a role in how these diseases may actually develop.