Dr. Stephanie Venn-Watson
๐ค SpeakerAppearances Over Time
Podcast Appearances
Yeah, you know, a lot of, if you talk to us fellow longevity scientists, we all have our favorite doomsday reason for aging and what takes us out in the end. But, and agree with you, Dr. Drew, that lipid peroxidation, it's ironic that oxygen, right? This molecule that we can't survive without for three to seven minutes is the same molecule that in the end,
Yeah, you know, a lot of, if you talk to us fellow longevity scientists, we all have our favorite doomsday reason for aging and what takes us out in the end. But, and agree with you, Dr. Drew, that lipid peroxidation, it's ironic that oxygen, right? This molecule that we can't survive without for three to seven minutes is the same molecule that in the end,
tacks our molecules in our cell membranes, breaks them down, leads to the aging process, and in the end, kills us. So we need, it's this balance that we have with the Jekyll and Hyde of oxygen. And we now know that the more stable the fatty acids in the cell membrane, especially C15, one of its essential roles is that it keeps our cell membranes stronger and
tacks our molecules in our cell membranes, breaks them down, leads to the aging process, and in the end, kills us. So we need, it's this balance that we have with the Jekyll and Hyde of oxygen. And we now know that the more stable the fatty acids in the cell membrane, especially C15, one of its essential roles is that it keeps our cell membranes stronger and
protects us against this lipid peroxidation, the attack of oxygen, and that prolongs life. There's actually a really cool theory that comes from A.J. Holbert, where he showed that the more stable and sturdy fatty acids in the cell membranes are, the longer a species lives.
protects us against this lipid peroxidation, the attack of oxygen, and that prolongs life. There's actually a really cool theory that comes from A.J. Holbert, where he showed that the more stable and sturdy fatty acids in the cell membranes are, the longer a species lives.
So it's already, you know, nature has already figured this out, exactly what you said of how a human and a dolphin can live 20 to 30 times longer than a mouse. So let's not start by trying to figure out how to help mice live longer. Let's start by understanding how us long-lived species live a long time and then push and optimize that.
So it's already, you know, nature has already figured this out, exactly what you said of how a human and a dolphin can live 20 to 30 times longer than a mouse. So let's not start by trying to figure out how to help mice live longer. Let's start by understanding how us long-lived species live a long time and then push and optimize that.
And so that's what we've been able to do with the Navy and C-15.
And so that's what we've been able to do with the Navy and C-15.
Yeah, that's right. And in fact, there was this discovery of a whole new form of cell death called varroptosis. And this was discovered by Columbia University researchers back in 2012. And that's where they found that when we went to medical school or took our cell biology class, we learned there were three ways our cells die. This group discovered a fourth.
Yeah, that's right. And in fact, there was this discovery of a whole new form of cell death called varroptosis. And this was discovered by Columbia University researchers back in 2012. And that's where they found that when we went to medical school or took our cell biology class, we learned there were three ways our cells die. This group discovered a fourth.
And this form of theroptosis is exactly what you said, where it's this attack of oxygen on fragile fatty acids in the cell membrane that That leads to everything, Dr. Ju, you just described. It takes out our mitochondria, it leads to reactive oxygen species.
And this form of theroptosis is exactly what you said, where it's this attack of oxygen on fragile fatty acids in the cell membrane that That leads to everything, Dr. Ju, you just described. It takes out our mitochondria, it leads to reactive oxygen species.
While that used to be a slow process that happens over time, what we're now seeing is with this process and this new cell death that for optosis is accelerated. And so this accelerated aging process is happening. Nobody really understood why fructose showed up until we'll talk about the dolphins. Go ahead.
While that used to be a slow process that happens over time, what we're now seeing is with this process and this new cell death that for optosis is accelerated. And so this accelerated aging process is happening. Nobody really understood why fructose showed up until we'll talk about the dolphins. Go ahead.
Yeah, this unexpected surprise, right? As a veterinary epidemiologist, I was working to continually help improve the health and welfare of the Navy's dolphins.
Yeah, this unexpected surprise, right? As a veterinary epidemiologist, I was working to continually help improve the health and welfare of the Navy's dolphins.
That's when we discovered that about one in three of Navy dolphins, as they got older, developed things that are going to sound familiar, like high cholesterol, chronic inflammation, insulin resistance, and fatty liver disease, and even changes consistent with Alzheimer's in the brain.
That's when we discovered that about one in three of Navy dolphins, as they got older, developed things that are going to sound familiar, like high cholesterol, chronic inflammation, insulin resistance, and fatty liver disease, and even changes consistent with Alzheimer's in the brain.