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Dr. Ray Peat, Brad Marshall on Reductive Stress, Solutions to PUFA Obesity (Part 2) [v12l5nx].vtt
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Dr. Ray Peat, Brad Marshall on Reductive Stress, Solutions to PUFA Obesity (Part 2) [v12l5nx].vtt
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WEBVTT
0:00:00.000 --> 0:00:07.800
I want to hone in on the topic like Brad suggested about reductive stress in our obesity panel,
0:00:07.800 --> 0:00:09.000
which you both were a part of.
0:00:09.000 --> 0:00:16.020
I saw, Brad, you were smiling, you know, very happily when you heard Dr. Pete reference
0:00:16.020 --> 0:00:17.160
reductive stress.
0:00:17.160 --> 0:00:23.480
So I want you guys to unleash, but try as best as you can to make this accessible for
0:00:23.480 --> 0:00:25.260
people who are a little new, but don't
0:00:25.260 --> 0:00:26.460
let it hold you back too much.
0:00:26.460 --> 0:00:28.780
Go and try to find the balance there.
0:00:28.780 --> 0:00:34.000
Explain what is this reductive stress and how is this connected to PUFA and how is this
0:00:34.000 --> 0:00:35.340
causing obesity?
0:00:35.340 --> 0:00:54.840
Dr. Peat? The PUFA role is, part of it is just a physical chemical effect, how the fat molecule affects
0:00:54.840 --> 0:01:05.000
the ionic balance of the cytoplasm and so on. But the reductive stress link to the PUFA,
0:01:08.560 --> 0:01:13.560
a lot of it is through thyroid function and estrogen
0:01:13.720 --> 0:01:18.720
because PUFA in the bloodstream will activate estrogen
0:01:20.280 --> 0:01:23.000
while blocking thyroid.
0:01:23.000 --> 0:01:27.100
Thyroid promotes an oxidative state.
0:01:27.920 --> 0:01:31.680
Estrogen promotes a reductive state.
0:01:31.680 --> 0:01:36.680
And so reductive stress goes with a ratio
0:01:37.000 --> 0:01:41.080
of estrogen to thyroid.
0:01:42.080 --> 0:01:57.000
And the immediate triggers for the fat balance. A lot of people have assumed
0:01:57.000 --> 0:02:09.520
that something interferes with the oxidation of fat causing obesity. But in fact, fat people during exercise
0:02:12.040 --> 0:02:16.160
burn more fat than normal lean people.
0:02:18.040 --> 0:02:23.040
Estrogen makes women burn a much higher proportion
0:02:23.880 --> 0:02:32.560
of fat than men burn relative to sugar metabolism, creating
0:02:32.560 --> 0:02:45.000
a reductive state. synthesis of fat is increased,
0:02:45.680 --> 0:02:49.560
while the oxidation is also increased.
0:02:51.020 --> 0:02:56.020
And so simply the fact that people get fatter
0:02:56.040 --> 0:03:01.040
made a lot of people think it's failure to oxidize fat,
0:03:01.680 --> 0:03:05.000
but actually the failure to,
0:03:07.160 --> 0:03:12.160
the tendency or being pushed to oxidize fat,
0:03:16.640 --> 0:03:20.560
it's called the Randle effect or the Randle cycle.
0:03:21.760 --> 0:03:30.760
If you are forced to oxidize fat, which fat people do very well, women do better than
0:03:30.760 --> 0:03:45.000
men, that turns off your ability to oxidize glucose. And so it slows your actual oxidative consumption
0:03:49.040 --> 0:03:54.040
of oxygen and production of the oxidizing balance
0:03:57.880 --> 0:03:59.580
and so reductive stress.
0:04:01.120 --> 0:04:14.200
The Randle cycle is a way of seeing what is forcing you into that choice to use fat
0:04:14.200 --> 0:04:25.000
for energy rather you're in a reductive condition
0:04:29.200 --> 0:04:32.340
by failing to oxidize glucose.
0:04:33.420 --> 0:04:38.420
And that reductive condition is part
0:04:43.020 --> 0:04:45.000
of what activates fatty acid synthase.
0:04:47.240 --> 0:04:51.640
So you increase your production of fat,
0:04:51.640 --> 0:04:56.640
well, actually, but not to a degree that compensates
0:04:57.560 --> 0:05:01.780
while you're also increasing fat oxidation.
0:05:03.240 --> 0:05:08.280
And that is also characteristic of cancer.
0:05:08.560 --> 0:05:12.480
Cancer consumes lots of fat,
0:05:12.480 --> 0:05:16.880
ends up making people waste away with cachexia.
0:05:16.880 --> 0:05:18.640
But at the same time,
0:05:18.640 --> 0:05:23.640
cancer activates the fatty acid synthase system.
0:05:24.000 --> 0:05:26.940
And then if you can stop the fatty acid synthase system. And if you can stop the fatty acid synthase,
0:05:27.780 --> 0:05:30.920
you cure both cancer and obesity.
0:05:32.540 --> 0:05:37.460
And that's under the control of the redox balance.
0:05:39.620 --> 0:05:41.820
So Brad, how does that fit with what you think about
0:05:41.820 --> 0:05:43.360
with reductive stress and obesity
0:05:43.360 --> 0:05:46.260
and try to translate this as best as you can, Bert?
0:05:46.260 --> 0:05:48.160
Yeah, I think that's about right.
0:05:48.160 --> 0:05:52.080
And I just wanna, you know.
0:05:52.080 --> 0:05:53.520
I don't mean that insultingly either.
0:05:53.520 --> 0:05:55.440
I'm just trying, I'm not a specialist like you guys,
0:05:55.440 --> 0:05:57.120
so I'm trying to process this.
0:05:57.120 --> 0:05:57.960
Right, and I always,
0:05:57.960 --> 0:05:59.480
and this is something that I always struggle
0:05:59.480 --> 0:06:02.640
to sort of define succinctly.
0:06:02.640 --> 0:06:04.300
You don't have to give us all the explanations,
0:06:04.300 --> 0:06:05.480
but give us a little bit of intermediate., but give us a little bit of intermediate.
0:06:05.480 --> 0:06:07.120
I'll give you a little bit of information.
0:06:07.120 --> 0:06:11.360
So our food, our food is, when we eat our food,
0:06:11.360 --> 0:06:12.920
it's in the reduced state.
0:06:12.920 --> 0:06:17.920
So carbohydrate is mostly carbon connected to hydrogen,
0:06:19.600 --> 0:06:21.280
and it's also connected to oxygen.
0:06:21.280 --> 0:06:28.880
And then fat is just carbon connected to hydrogen. And in those electrons
0:06:28.880 --> 0:06:34.720
that live between the carbon and the hydrogen, they would be happier, or at least the oxygen
0:06:34.720 --> 0:06:42.240
would be happier, if they were connected to oxygen. And so when we eat our food, it's fat,
0:06:42.240 --> 0:06:45.180
which is like just carbon and hydrogen, but when we exhale it,
0:06:45.180 --> 0:06:48.400
it's CO2 and H2O.
0:06:48.400 --> 0:06:52.200
All those hydrogens have recombined with oxygen, and all those carbons have recombined with
0:06:52.200 --> 0:06:57.420
oxygen, and that's how they leave.
0:06:57.420 --> 0:07:08.120
When carbon and hydrogen leave our body after we, quote, burn the fuel, it's very oxidized, but it comes into our
0:07:08.120 --> 0:07:17.240
body very reduced. And so, basically, fuel calories are all in the reduced state. And
0:07:17.240 --> 0:07:25.040
the whole point of our, you know, of our metabolism is we oxidize the reduced fuel that
0:07:25.040 --> 0:07:29.640
we eat. And so what happens is reductive stress in a cell sort
0:07:29.640 --> 0:07:33.640
of looks like a bit like the cell has overeaten what you find
0:07:33.640 --> 0:07:37.600
you have you find too much things in the reduced state and
0:07:37.600 --> 0:07:40.800
this is and this usually is stated in terms of
0:07:40.800 --> 0:07:47.960
intermediates. So like, so the citric acid cycle or the TCA cycle or the Krebs cycle,
0:07:47.960 --> 0:07:49.960
depending on what you want to call it is,
0:07:50.000 --> 0:07:53.960
is really at the heart of our metabolism. And it's this cycle, you know,
0:07:53.960 --> 0:07:57.760
it's usually drawn as a circle. Um, it doesn't really spin in a circle,
0:07:57.760 --> 0:08:00.480
but that doesn't matter. Every time you go around the circle,
0:08:00.480 --> 0:08:03.960
you need three molecules of NAD plus,
0:08:04.360 --> 0:08:08.840
which is oxidized it's oxidized NAD and it all gets converted to NADH.
0:08:09.160 --> 0:08:13.960
And so for each like, p, you know, for each glucose, you need
0:08:13.960 --> 0:08:20.160
like six of these NAD plus, in order to oxidize the glucose for
0:08:20.160 --> 0:08:23.440
a fat molecule, you need way more, I don't know, it's a, it's
0:08:23.440 --> 0:08:27.540
a big number, it's like you need 40 or something of these NAD plus
0:08:27.540 --> 0:08:28.700
to oxidize the fat.
0:08:28.700 --> 0:08:31.660
And so it turns out that our metabolic rate
0:08:31.660 --> 0:08:35.280
is really limited by how much of this NAD plus that we have.
0:08:35.280 --> 0:08:39.800
And the main way that we reconvert the NADH
0:08:39.800 --> 0:08:42.680
back to NAD plus is by burning calories.
0:08:42.680 --> 0:08:44.280
So if you, you know, whatever,
0:08:44.280 --> 0:08:45.920
when we get up and we walk
0:08:47.680 --> 0:08:52.720
our muscle cells and our legs are burning calories, and what's happening is the NADH is
0:08:53.360 --> 0:08:59.680
giving its electrons to the electron transport chain that's making ATP, we're burning that ATP,
0:08:59.680 --> 0:09:09.800
and every time we're burning ATP, we're generating more NAD+. But at some point, if more fuel is coming into the cell
0:09:10.160 --> 0:09:14.240
than is really required, if we're not exercising,
0:09:14.240 --> 0:09:19.240
that's when you can have this buildup of things like NADH.
0:09:20.780 --> 0:09:23.920
And when that happens, NAD plus drops.
0:09:25.740 --> 0:09:28.480
And you can have more of something called
0:09:28.480 --> 0:09:31.620
acetyl CoA comes in.
0:09:31.620 --> 0:09:32.460
All of us.
0:09:32.460 --> 0:09:34.240
Is this the same thing that Paul Saladino was explaining
0:09:34.240 --> 0:09:36.100
when he said the cells are getting so fat,
0:09:36.100 --> 0:09:37.420
they're bursting from-
0:09:37.420 --> 0:09:38.260
Well, that's later.
0:09:38.260 --> 0:09:39.780
That's once you've stored fat.
0:09:39.780 --> 0:09:41.180
This is sort of before that.
0:09:41.180 --> 0:09:43.800
This is like, what happened, this is like,
0:09:43.800 --> 0:09:46.720
so all of our fuels,
0:09:46.720 --> 0:09:48.960
whether it's glucose, whether it's fat,
0:09:48.960 --> 0:09:53.960
whether it's alcohol, they all get converted to acetyl-CoA.
0:09:54.280 --> 0:09:56.440
They really get converted to acetyl groups.
0:09:56.440 --> 0:09:58.520
CoA just is sort of the chaperone,
0:09:58.520 --> 0:10:02.920
but they all get converted in this CO, acetyl-CoA.
0:10:02.920 --> 0:10:05.460
And the acetyl group has a bunch of these electrons
0:10:05.460 --> 0:10:08.320
and the electrons need to go somewhere, right?
0:10:08.320 --> 0:10:10.440
So it's really all about the flow of the electrons.
0:10:10.440 --> 0:10:12.200
The acetyl group is just two carbons
0:10:12.200 --> 0:10:14.820
and like four hydrogens attached to it.
0:10:15.840 --> 0:10:17.560
And so what you've got is you have a bunch
0:10:17.560 --> 0:10:19.400
of high energy electrons and they,
0:10:19.400 --> 0:10:21.760
those electrons all need to somehow recombine
0:10:21.760 --> 0:10:24.720
with oxygen to make CO2 and H2O.
0:10:24.720 --> 0:10:25.520
That's how they're going to leave the
0:10:25.520 --> 0:10:30.640
body. And so what you have, if you have a bunch of these acetyl groups, you have all of these
0:10:30.640 --> 0:10:36.160
electrons and they need to somehow get out. Right. And so, so the body essentially has a choice.
0:10:36.880 --> 0:10:41.520
How do we get rid of the electrons? We can do one of two things. We can either burn the electrons
0:10:42.080 --> 0:10:46.800
as, you know, as energy, as calories, we can do some kind of thermogenesis,
0:10:46.800 --> 0:10:51.060
or we can, just as Dr. P suggested,
0:10:51.060 --> 0:10:53.100
we can start converting them into fat.
0:10:53.100 --> 0:10:56.120
So we can build them back into fat and we can store them.
0:10:57.160 --> 0:11:02.160
And so, our metabolic rate within each cell,
0:11:05.000 --> 0:11:05.820
as calories come in, our metabolic rate within each cell,
0:11:09.260 --> 0:11:10.960
as calories come in, our mitochondria literally have a decision to make,
0:11:10.960 --> 0:11:13.220
and they can either burn that fuel
0:11:13.220 --> 0:11:15.000
or they can store that fuel.
0:11:15.000 --> 0:11:18.980
And what determines that is the rate of reductive stress
0:11:18.980 --> 0:11:20.120
that the cell is in.
0:11:20.120 --> 0:11:24.260
If the cell sees that there's a lot of NADH
0:11:24.260 --> 0:11:26.960
and not much NAD+, and if there's a lot
0:11:26.960 --> 0:11:32.560
of these, if there's a lot of this acetyl-CoA around, which is basically, it's all fuel,
0:11:32.560 --> 0:11:33.560
right?
0:11:33.560 --> 0:11:40.280
The cell sees, the mitochondria sees fuel burning up, both as NADH and as acetyl-CoA.
0:11:40.280 --> 0:11:42.320
Now the cell is in reductive stress.
0:11:42.320 --> 0:11:45.280
When that happens, the cell is going to make the decision,
0:11:45.280 --> 0:11:51.920
we need to store this as fat because it's building up and we're not burning it fast enough. Right?
0:11:51.920 --> 0:11:58.080
That's what this - so the cell is monitoring this kind of reductive stress. And so, okay, well,
0:11:58.080 --> 0:12:05.680
what is the thing that has changed? Why did we not used to be in this reductive stress? And now we are because we ate these vegetable oils.
0:12:07.440 --> 0:12:11.960
And what I believe it is, is there is a system in the
0:12:11.960 --> 0:12:16.240
mitochondria, and it is, it's sort of a detoxification system,
0:12:16.240 --> 0:12:18.520
if you want to call it that, although that's not really how I
0:12:18.520 --> 0:12:22.640
think of it. What it is, is saturated fat, when we burn
0:12:22.640 --> 0:12:26.660
them in the mitochondria, create a lot of reactive oxygen species.
0:12:26.660 --> 0:12:39.040
And what that means is, the electrons, instead of making ATP, they're just, they're kicking out of the electron transport chain,
0:12:39.040 --> 0:12:46.440
and they don't make it all the way through. And what happens is they recombine with oxygen to form this thing called superoxide. And superoxide is a
0:12:46.440 --> 0:12:49.120
reactive oxygen species, it's a free radical, and everyone
0:12:49.120 --> 0:12:54.040
thinks that it's bad. But the more that we learn about it, we
0:12:54.040 --> 0:12:56.280
actually have this very efficient system in the
0:12:56.280 --> 0:13:01.380
mitochondria, which gets rid of the kind of danger of it. And
0:13:01.380 --> 0:13:04.760
this is done by something called glutathione, which a lot of
0:13:04.760 --> 0:13:06.600
people probably heard about, it's called the
0:13:06.600 --> 0:13:11.760
body's master antioxidant. The glutathione is our superoxide
0:13:11.760 --> 0:13:16.120
dismutase comes in first, it makes hydrogen peroxide. The
0:13:16.120 --> 0:13:18.360
hydrogen peroxide is very efficiently eliminated by
0:13:18.360 --> 0:13:24.120
glutathione. And then glutathione reductase gives us
0:13:24.120 --> 0:13:27.800
a molecule of NADP plus and this other enzyme called NNT
0:13:29.200 --> 0:13:31.800
converts that to NAD plus.
0:13:31.800 --> 0:13:36.800
So what happens is for every molecule of superoxide
0:13:37.720 --> 0:13:39.640
that is generated in the mitochondria
0:13:39.640 --> 0:13:43.400
and goes through that pathway, we get an NAD plus back.
0:13:43.400 --> 0:13:48.400
And so essentially the faster that we can drive,
0:13:49.200 --> 0:13:53.840
because remember, reductive stress is just too many
0:13:53.840 --> 0:13:57.580
electrons that haven't recombined with oxygen.
0:13:57.580 --> 0:14:01.280
So every electron that comes out of the electron transport
0:14:01.280 --> 0:14:06.660
chain and creates superoxide and then is efficiently, you know, detoxified
0:14:06.660 --> 0:14:08.580
or whatever you want to call it by the body.
0:14:08.580 --> 0:14:10.140
Well, that's another electron.
0:14:10.140 --> 0:14:14.420
That's like, it's like a, it's like a pressure valve
0:14:14.420 --> 0:14:16.220
that opens up and it's like, okay, well
0:14:16.220 --> 0:14:18.420
if there's too much energy in this cell
0:14:18.420 --> 0:14:20.980
we open the pressure valve, we just blow off some
0:14:20.980 --> 0:14:23.140
of the extra pressure and now we're no longer
0:14:23.140 --> 0:14:26.740
in reductive stress because those electrons can just flow straight back
0:14:26.740 --> 0:14:30.040
to oxygen and it's all dealt with very efficiently.
0:14:31.860 --> 0:14:34.860
And the problem is that the PUFA,
0:14:38.980 --> 0:14:41.260
when they go through the mitochondria,
0:14:41.260 --> 0:14:45.360
they don't create as much input at complex two of
0:14:45.360 --> 0:14:48.000
the mitochondrial electron transport chain. And that's what
0:14:48.000 --> 0:14:52.560
drives the the the RLS in the first place. So my argument is
0:14:53.080 --> 0:14:56.960
that this thing that we've all been very scared of this idea of
0:14:56.960 --> 0:15:03.000
creating reactive oxygen species in the mitochondria sounds very
0:15:03.000 --> 0:15:07.120
scary. But when everything is working correctly,
0:15:07.120 --> 0:15:14.000
when everything was the way that it used to be, that, and let me be very clear about
0:15:15.440 --> 0:15:24.640
the pathway of this, it's reactive oxygen species, and then it's superoxide dismutase,
0:15:27.360 --> 0:15:31.120
oxygen species and then it's superoxide dismutase and that makes it into hydrogen peroxide, glutathione turns the hydrogen
0:15:31.120 --> 0:15:35.400
peroxide into water, and then glutathione peroxidase, or
0:15:35.400 --> 0:15:40.120
sorry, glutathione reductase gives us an NADP plus back and
0:15:40.120 --> 0:15:45.000
then NADP plus swaps the NADP plus into NAD plus.
0:15:45.200 --> 0:15:48.340
And that NAD plus is what allows our metabolism
0:15:48.340 --> 0:15:50.300
to just keep on cranking.
0:15:50.300 --> 0:15:53.680
And so that system of getting rid
0:15:53.680 --> 0:15:56.720
of the reactive oxygen species is actually,
0:15:56.720 --> 0:15:59.480
that's the top gear of our metabolism.
0:15:59.480 --> 0:16:02.360
And the PUFA eliminates it.
0:16:02.360 --> 0:16:04.480
And everybody's like, well, PUFA are great
0:16:04.480 --> 0:16:07.160
because they eliminate, you know,
0:16:07.160 --> 0:16:10.000
when we oxidize PUFA in our mitochondria,
0:16:10.000 --> 0:16:12.280
we're not making as many reactive oxygen species.
0:16:12.280 --> 0:16:14.440
And that's true, we're not.
0:16:14.440 --> 0:16:18.200
But the problem is that the reactive oxygen species
0:16:18.200 --> 0:16:22.420
actually are the fifth gear of our metabolism.
0:16:23.340 --> 0:16:25.520
You know, that's what I think.
0:16:25.520 --> 0:16:27.540
And that's what I think is ultimately
0:16:27.540 --> 0:16:30.380
the problem with the PUFA.
0:16:32.680 --> 0:16:35.560
The alternative to all of that though
0:16:35.560 --> 0:16:39.240
is to oxidize more glucose.
0:16:39.240 --> 0:16:44.240
And the medical doctrine about diabetes
0:16:44.920 --> 0:16:45.000
has totally deranged,
0:16:48.520 --> 0:16:51.600
made it impossible for them to understand
0:16:51.600 --> 0:16:54.520
what reductive stress is.
0:16:54.520 --> 0:16:58.920
They say that eating too much sugar
0:16:58.920 --> 0:17:01.420
can cause reductive stress.
0:17:02.560 --> 0:17:04.080
And they say,
0:17:04.000 --> 0:17:08.400
reductive stress and they say, see the people who are making lactic acid
0:17:08.400 --> 0:17:13.400
showing excess reduction are doing it
0:17:13.960 --> 0:17:17.780
because they have high glucose.
0:17:17.780 --> 0:17:22.080
They put the blame on glucose rather than seeing
0:17:23.440 --> 0:17:33.040
it's the oxidation of fats blocking through the Randle cycle effect,
0:17:33.040 --> 0:17:50.900
blocking the ability to oxidize glucose to carbon dioxide. And if you think of the meaning of oxygen, where the concept came from, it means acid
0:17:50.900 --> 0:17:56.720
source, oxy, acid, and gin.
0:17:56.720 --> 0:18:05.000
And oxygen is recognized as the acidifier of the cytoplasm.
0:18:05.240 --> 0:18:10.240
And the cytoplasm is alive when it's acidic.
0:18:13.200 --> 0:18:17.140
The living state depends on oxygen
0:18:17.140 --> 0:18:21.460
creating a constant acid tension,
0:18:23.040 --> 0:18:33.000
in effect a deficiency of electrons. Basically, by the presence of carbon dioxide
0:18:33.000 --> 0:18:47.000
attaching to the protein water system of the cell, oxygen making carbon dioxide acidifies the cell and sustains life.
0:18:47.000 --> 0:18:55.920
The diabetes theory gets it exactly backwards seeing glucose as a reductant.
0:18:55.920 --> 0:19:36.160
Glucose is the formation of fat. reduction condition produced by a deficiency of carbon dioxide from lower glucose consumption.
0:19:36.160 --> 0:19:55.720
The deficiency of carbon dioxide is what turns on the fatty acid synthase and turns on the production of fat even when we should be using the energy
0:19:55.720 --> 0:20:12.200
rather than storing it as fat. that is where the reductive imbalance becomes obvious with oxidation of glucose to carbon
0:20:12.200 --> 0:20:22.600
dioxide, decreasing the oxidative state of the cytoplasm or favoring a reductive state
0:20:22.600 --> 0:20:27.440
of the cytoplasm. And that's why breathing
0:20:27.440 --> 0:20:38.000
carbon dioxide is therapeutic in so many ways. Anti-inflammatory, pro-respiratory.
0:20:38.120 --> 0:20:50.400
Dr. Rhee, what was the thing that you said turns on the fatty acid synthase? A reductive state. Right. And one of
0:20:50.400 --> 0:21:01.440
the functions, how the sick cell is seeing it, is like age pigment production. The process of making
0:21:15.520 --> 0:21:25.240
The process of making fat is one way of disposing of the free electrons, keeping the cell acidified to the degree that lets becomes an electron sink.
0:21:30.240 --> 0:21:36.000
So it's defensive, but with a lot of bad consequences.
0:21:38.560 --> 0:21:42.760
Yeah, I mean, I think I agree
0:21:44.660 --> 0:21:49.200
with most of what you're saying. I do have this question, I think, which is
0:21:49.200 --> 0:21:58.520
what in your opinion would be the difference between me eating bread with
0:21:58.520 --> 0:22:09.160
butter versus bread with soybean oil? How does the bread with soybean oil lead to reductive stress versus
0:22:09.160 --> 0:22:10.760
the bread with butter?
0:22:10.760 --> 0:22:20.160
Probably the major, both immediate and long-range effects are to block thyroid function and
0:22:20.160 --> 0:22:23.320
activate estrogen function.
0:22:23.320 --> 0:22:25.520
Right.
0:22:26.840 --> 0:22:28.680
That happens right in the bloodstream
0:22:28.680 --> 0:22:31.440
as you're absorbing the fat.
0:22:31.440 --> 0:22:36.440
It turns several switches all in the wrong direction.
0:22:41.520 --> 0:22:43.000
I know, yeah, I mean, I don't,
0:22:43.000 --> 0:22:46.820
that's where I don't know that much about how estrogen works,
0:22:48.960 --> 0:22:50.680
but it's very interesting.
0:22:50.680 --> 0:22:53.120
So Brad, are you guys, can you help me understand?
0:22:53.120 --> 0:22:56.280
It sounds like you guys are both saying high PUFA diet
0:22:57.360 --> 0:23:00.640
causes this reductive stress problem in the cells,
0:23:00.640 --> 0:23:02.680
which leads to obesity, but there's a little bit
0:23:02.680 --> 0:23:04.640
of difference in how this works for both of you?
0:23:04.640 --> 0:23:05.460
I don't understand it.
0:23:05.460 --> 0:23:11.620
Yeah, I mean, I believe that we're both, I mean, we are both very much on the same page with the idea that
0:23:11.620 --> 0:23:19.420
reductive stress is a buildup of molecules in the reduced state. The
0:23:19.420 --> 0:23:25.800
example molecule that I mentioned was NADH, is the reduced version of NAD. And so when
0:23:25.800 --> 0:23:33.200
you, when the cell is in the reduced state, as Dr. Pete said, that raises
0:23:33.200 --> 0:23:40.760
the production of fatty acid synthase, which I'm 100% in agreement with,
0:23:40.760 --> 0:23:45.280
absolute agreement. So I think what we are both in agreement with is when
0:23:46.560 --> 0:23:54.320
when the state, when the cell becomes too reduced, that is when de novo lipogenesis happens. And that
0:23:54.320 --> 0:24:03.920
is when we start making fat from our food, rather than burning fat. I think what we have
0:24:10.600 --> 0:24:18.360
burning fat. I think what we have differences in is perhaps what causes the reductive stress in the first place when we eat, you know,
0:24:18.360 --> 0:24:23.280
polyunsaturated fat, and there's a good chance that we're actually both correct.
0:24:23.280 --> 0:24:25.480
We're talking about two different mechanisms,
0:24:25.480 --> 0:24:30.940
but as far as I know, they might be reinforcing mechanisms. I don't think there's any reason
0:24:30.940 --> 0:24:33.600
to think that one, you know...
0:24:33.600 --> 0:24:38.240
So you're saying what? Because Dr. Pete's saying it's estrogen, right?
0:24:38.240 --> 0:24:48.000
Dr. Pete is saying that it has effects on, yes, estrogen and... And thyroid. estrogen and, um, and thyroid, thyroid hormone.
0:24:48.480 --> 0:24:55.080
And you're saying it's what I am suggesting that it actually has to do with, uh, this
0:24:55.100 --> 0:25:06.760
mitochondrial system of, of ROS, this, uh, system of, of reactive oxygen species removal, which involves glutathione
0:25:06.760 --> 0:25:13.360
reductase and the enzyme called NNT, both of which together,
0:25:13.400 --> 0:25:18.760
while removing reactive oxygen species, they end up oxidizing
0:25:18.760 --> 0:25:24.440
the NADH back to NAD+. So it's this kind of physical mechanism
0:25:24.480 --> 0:25:28.640
of oxidizing NADH and giving us back NAD+,
0:25:28.640 --> 0:25:33.560
with a net result that the reactive oxygen species are eliminated.
0:25:33.560 --> 0:25:49.640
If you increase your thyroid function, which increases oxidation of glucose and production of CO2, the production of reactive oxygen species
0:25:49.640 --> 0:25:58.000
declines sharply as oxygen consumption increases.
0:25:58.000 --> 0:26:08.680
Uncoupling to survive, there's a good paper with that title. The faster you run the electron transport chain
0:26:09.800 --> 0:26:14.800
oxidizing all the way to oxygen,
0:26:16.120 --> 0:26:21.120
and the mechanism is that that increases your CO2 production
0:26:22.960 --> 0:26:30.640
and it simultaneously suppresses reactive oxygen formation.
0:26:30.640 --> 0:26:49.000
So the relatively quiet mitochondrion can be producing very toxic reactive oxygen species. And if you can get it revved up with thyroid and glucose
0:26:49.000 --> 0:26:54.000
and CO2, that suppresses the reactive oxygen.
0:26:54.760 --> 0:26:57.480
Right, and I don't disagree with any of that.
0:26:57.480 --> 0:26:59.620
And what I've seen is that,
0:27:01.520 --> 0:27:03.240
you know, for instance,
0:27:04.680 --> 0:27:12.040
in a lot of mouse models, for instance, in a lot of mouse models, for instance, there is a mouse model
0:27:12.040 --> 0:27:24.120
that sort of stimulates intense reductive stress, which is they've made a knockout of
0:27:24.120 --> 0:27:29.400
the gene S three. And so anyway, I don't want to go into the
0:27:29.400 --> 0:27:32.900
whole story of that. But But those mice, as Dr. Pete
0:27:32.900 --> 0:27:37.200
suggests, while they're on a high glucose or a high starch
0:27:37.200 --> 0:27:42.300
diet, they burn tons of glucose, and they're just fine. But when
0:27:42.300 --> 0:27:45.560
they start to oxidize too much
0:27:45.560 --> 0:27:48.360
fat, that's when they get into problems. And that's when you
0:27:48.360 --> 0:27:54.280
see fatty acid synthase spike. And so I think that this this
0:27:54.320 --> 0:27:58.360
RLS system that I'm talking about, and this RLS removal
0:27:58.360 --> 0:28:02.760
system is very specific to when the animal is on a high fat
0:28:02.760 --> 0:28:06.280
diet, or when the animal is actually a high fat diet or when the animal is actually burning a lot of its
0:28:06.280 --> 0:28:09.720
own fat, presumably.
0:28:09.720 --> 0:28:16.400
I think that the ability to burn glucose is clearly good.
0:28:16.400 --> 0:28:18.720
If you can burn glucose, that's great.
0:28:18.720 --> 0:28:21.760
That's what healthy animals are supposed to be able to do.
0:28:21.760 --> 0:28:26.000
I think that's very clear that that's true in humans. And it's more when we
0:28:26.640 --> 0:28:32.880
burn a high fat diet, that's when we tend to see the reductive stress. And so I think that the
0:28:34.080 --> 0:28:40.960
system that I'm talking about really is specific to the quality of the fat that you're burning
0:28:40.960 --> 0:28:45.580
when you're burning fat, which I also agree with Dr. P that that happens.
0:28:46.480 --> 0:28:49.420
Mostly, one, if you're eating a high-fat diet,
0:28:49.420 --> 0:28:51.720
but also if you're obese,
0:28:53.020 --> 0:28:57.440
you tend to rely a lot more on that leg of your metabolism,
0:28:57.440 --> 0:28:59.040
which is burning fat.