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<h1></h1>
<p></p>
<p><strong>Mitonchondria and mortality:</strong></p>
<p>Diet, exercise, and medicine, damaging or repairing respiratory metabolism</p>
<p><strong><em>MAIN IDEAS AND CONTEXTS</em></strong></p>
<strong><em>Lactic acid and carbon dioxide</em></strong>
<em> have opposing effects.</em>
<p>
<strong><em>Intense exercise damages cells</em></strong>
<em>
in ways that cumulatively impair metabolism. There is clear evidence that glycolysis, producing lactic
acid from glucose, has toxic effects, suppressing respiration and killing cells. &nbsp; Within five
minutes, exercise lowers the activity of enzymes that oxidize glucose. Diabetes, Alzheimer's disease,
and general aging involve increased lactic acid production&nbsp; &nbsp; and&nbsp; &nbsp;
accumulated&nbsp; &nbsp; metabolic (mitochondrial) damage.</em>
</p>
<p>
<strong><em>The products of glycolysis,</em></strong>
<em> lactic acid and pyruvic acid, suppress oxidation of glucose.</em>
</p>
<p>
<em>&nbsp;</em>
<strong><em>Adaptation</em></strong>
<em>
to hypoxia or increased carbon dioxide limits the formation of lactic acid. Muscles are 50% more
efficient in the adapted state; glucose, which forms more carbon dioxide than fat does when oxidized,,
is metabolized more efficiently than fats, requiring less oxygen.</em>
</p>
<p>
<strong><em>Lactic acidosis,</em></strong>
<em>
by suppressing oxidation of glucose, increases oxidation of fats, further suppressing glucose
oxidation.&nbsp;</em>
</p>
<p>
<strong><em>Estrogen</em></strong>
<em> is harmful to mitochondria,</em>
<strong><em> progesterone</em></strong>
<em> is beneficial.</em>
</p>
<p>
<strong><em>Progesterone's brain-protective</em></strong>
<em> and restorative effects involve mitochondrial actions.</em>
</p>
<p>
<strong><em>Thyroid hormone, palmitic acid, and light </em></strong>
<em>activate a crucial respiratory enzyme, suppressing the formation of lactic acid. Palmitic acid occurs in
coconut oit, and is formed naturally in animal tissues. Unsaturated oils have the opposite effect.</em>
</p>
<p>
<strong><em>Heart failure, shock,</em></strong>
<em>
and other problems involving excess lactic acid can be treated "successfully" by poisoning glycolysis
with dichloroacetic acid, reducing the production of lactic acid, increasing the oxidation of glucose,
and increasing cellular ATP concentration. Thyroid, vitamin B1, biotin, etc., do the same.</em>
</p>
<p><strong><em>SOME DEFINITIONS</em></strong></p>
<p>
<strong><em>Glycolysis:</em></strong>
<em>
The conversion of glucose to lactic acid, providing some usable energy, but many times less than
oxidation provides.</em>
</p>
<p>
<strong><em>Lactic acid,</em></strong>
<em>
produced by splitting glucose to pyruvic acid followed by its reduction, is associated with calcium
uptake and nitric oxide production, depletes energy, contributing to cell death.&nbsp;</em>
</p>
<p>
<strong><em>Crabtree effect:</em></strong>
<em>
Inhibition of cellular respiration by an excess of glucose; excess of glucose promotes calcium uptake by
cells.</em>
</p>
<p>
<strong><em>Pasteur effect:</em></strong>
<em> Inhibition of glycolysis (fermentation) by oxygen.</em>
</p>
<p>
<strong><em>Randle effect:</em></strong>
<em>
The inhibition of the oxidation of glucose by an excess of fatty acids.&nbsp; This lowers metabolic
efficiency. Estrogen promotes this effect.</em>
</p>
<p>
<em>&nbsp;</em>
<strong><em>Lactated Ringer's solution:</em></strong>
<em>
A salt solution that has\ been used to increase blood volume in treating shock; the lactate was
apparently chosen as a buffer in place of bicarbonate, as a matter of convenience rather than
physiology. This solution is toxic, partly because it contains the form of lactate produced by bacteria,
but our own lactate, at higher concentrations, produces the same sorts of toxic effect, damaging
mitochondria,</em>
</p>
<p>
<strong><em>Estrogenic phytotoxins</em></strong>
<em> damage mitochondria, kill brain cells; tofu is associated with dementia.</em>
</p>
<p><em><hr /></em></p>
<p>
Since reading Warburg's publications in the late 1960s and early 70s, and doing my own research on tissue
respiration, I have been convinced that Warbug was on the right track in seeing mitochondrial respiration as
the controlling influence in cell differentiation, and in seeing cancer as a reversion to a primitive form
of life based on a "respiratory defect." Harry Rubin's studies of cells in culture have expanded Warburg's
picture of the process of cancerization, showing that genetic changes occur only after the cells have been
transformed into cancer.
</p>
<p>
It is now well recognized that defective mitochondrial respiration is a central factor in diseases of
muscles, brain, liver, kidneys, and other organs. The common view has been that the mitochondrial defects
are produced by genetic defects, that are either inherited or acquired, and are irreversible.
</p>
<p>
Mitochondria depend on some genes in the nuclear chromosomes, but they also contain some genes, and
mutations in these specific mitochondrial genes have been associated with various diseases, and with aging.
Although these aren't the genes that the cancer establishment has focussed on as "the cause" of cancer, for
people interested in the achievements of Warburg and Rubin, it is important to know whether mutations in
these mitochondrial genes are the <em>cause</em> of respiratory defects, or whether a respiratory defect
causes the mutations. Recent research seems to show that physiological problems precede and cause the
mutations.
</p>
<p>
Warburg believed that mitochondria supported specialized cell functions by concentrating themselves in the
places where energy is needed. This idea has some interesting implications. For example, when the amount of
thyroid hormone is increased, or when the organism adapts to a high altitude, the number of mitochondria
increases. But in energy deficient states such as diabetes, they don't. How are these crucial organelles
called into existence by the hormone that increases respiration and energy, and also by the hypoxic
conditions of high altitudes? &nbsp; In both of these conditions, the availability of oxygen is limiting the
ability to produce energy. In both conditions, carbon dioxide concentration in tissue is higher, in
one&nbsp; case, &nbsp; because&nbsp; thyroid&nbsp; stimulates&nbsp; its production, in the other, because
the Haldane effect limits its loss from the lungs.
</p>
<p>
Could carbon dioxide, a major product of mitochondria, help to call mitochondria into existence? My answer
to this is "yes," and it will help to briefly explain how I see mitochondria. Although I have no hesitancy
in accepting that organelles can be exchanged between species, and that it is conceivable that mitochondria
might have been derived from symbiotic bacteria, I am reluctant to believe that something happens just
because it <em>could</em> happen. &nbsp; For example, Francis Crick proposed that life on earth originated
when genes arrived here on space dust from some other world. That's a theoretical possibility, but what's
the point?&nbsp; It just avoids explaining how the highly organized material came into existence somewhere
else, and it probably seriously interfered with the consideration of the ways life could arise here.
Similarly, some people like to think that mitochondria and chloroplasts were originally bacteria, that came
into symbiosis with another kind of living material, consisting of nucleus and cytoplasm. Like Crick's
"space germs," it can be argued that it's possible, but the problem is that this explanation can stop people
from thinking freshly about the nature of the various organelles, and how they came to exist. (How did cells
originate? &nbsp; How did mitochondria originate? &nbsp; "Germs.")
</p>
<p>
Since I have a view of how cells came to exist, under conditions that exist on earth, I should consider
whether that view doesn't also reasonably account for their various components. Sidney Fox's proteinoid
microspheres provide a good model for the spontaneous formation of primitive cells; variations of that idea
can account for the formation of organelles (such as mitochondria and nuclei within cells, and chromosomes
within nuclei). The value of this idea, of a self-stimulating process in mitochondrial generation, is that
it suggests many ways to test the idea experimentally, and it suggests explanations for developmental and
pathological processes that otherwise would have no coherent explanation.
</p>
<p>
Proteinoid microspheres and coacervates form by acquiring molecules from solution, condensing them into a
separate phase, with its own physical properties. At every phase boundary, there are numerous physical
forces, especially electronic properties, that make each kind of interface different from other kinds.
&nbsp; Small changes of pH, temperature, of salts and other solutes can alter the interfacial forces,
causing particles to dissolve, or grow, or fragment, or to move. In the way that carbon dioxide alters the
shapes and electrical affinities of hemoglobin and other proteins, I propose that it increases the stability
of the mitochondrial coacervate, causing it to "recruit" additional proteins from its external environment,
as well as from its own synthetic machinery, to enlarge both its structure and its functions.
</p>
<p>
In the relative absence of carbon dioxide, or excess of alternative solutes and adsorbents, such as lactic
acid, the stability of the mitochondrial phase would be decreased, and the mitochondria would be degraded in
both structure and function. As the back side of the idea that carbon dioxide stabilizes and activates
mitochondria, the idea that lactic acid is involved in the degrading of mitochondria can also be tested
experimentally, and it is already supported by a considerable amount of circumstantial evidence.
</p>
<p>
This combination of sensitivity to the environment, with a kind of positive feedback or inertia either
upward or downward, corresponds to what we actually see in mitochondrial physiology and pathology.
</p>
<p>
The Crabtree effect, which is the suppression of respiration by glycolysis, is often described as the simple
opposite of the Pasteur effect, in which respiration limits glycolysis to the rate that allows its product
to be consumed oxidatively. But the Pasteur effect is a normal sort of control system; when the Pasteur
effect fails, as in cancer, there is glycolysis which is relatively independent of respiration, causing
sugar to be consumed inefficiently. Embryonic tissues sometimes behave in this manner, leading to the
suggestion that glycolysis is closely related to growth. &nbsp; Unlike the logical Pasteur effect, the
Crabtree effect tends to lower cellular energy and adaptability. Looking at many situations in which
increasing the glucose supply increases lactic acid production and suppresses respiration, leading to
maladaptive decrease in cellular energy, I have begun thinking of lactic acid as a toxin. &nbsp; The use of
Ringer's lactate solution in medicine has led many people to assume that lactate must be beneficial, or they
wouldn't put it in the salt solution that is often used in emergiencies; however, I think its use here, as a
buffer, is simply a convenience, because of the instability of some bicarbonate solutions.
</p>
<p>
On the organismic level, it is clear that lactic acid is "the essence of hyperventilation," and that it
produces edema and malfunction on a grand scale: The panic reaction, shock lung, vascular leakiness, brain
swelling, and finally multiple organ failure, all can be traced to an excess of lactic acid, and the related
features of hyperventilated physiology.
</p>
<p>
Otto Warburg apparently thought of lactate as simply a sign of the respiratory defect that characterizes
cancer. V. S. Shapot at least hinted at its possible role in turning on the catabolic reactions leading to
cancer cachexia (wasting). I think a good case can be made for lactate as the <em>cause</em> of the
respiratory defect in cancer, just as it is usually the immediate cause of the respiratory derangement of
hyperventilation on the organismic level.
</p>
<p>
The Crabtree effect is usually thought of as just something that happens in tumors, and some tissues that
are very active glycolytically, and some bacteria, when they are given large amounts of glucose. But when we
consider lactate, which is produced by normal tissues when they are deprived of oxygen or are disturbed by a
stress reaction, the Crabtree effect becomes a very general thing. The "respiratory defect" that we can see
on the organismic level during hyperventilation, is very similar to the "systemic Crabtree effect" that
happens during stress, in which respiration is shut down while glycolysis is activated. Since oxidative
metabolism is many times more efficient for producing energy than glycolysis is, it is maladaptive to shut
it down during stress.
</p>
<p>
Since the presence of lactate is so commonly considered to be a normal and adaptive response to stress, the
shut-down of respiration in the presence of lactate is generally considered to be caused by something else,
with lactate being seen as an effect rather than a cause. Nitric oxide and calcium excess have been
identified as the main endogenous antirespiratory factors in stress, though free unsaturated fatty acids are
clearly involved, too. &nbsp; However, glycolysis, and the products of glycolysis, lactate and pyruvate,
have been found to have a causal role in the suppression of respiration; it is both a cause and a
consequence of the respiratory shutdown, though nitric oxide, calcium, and fatty acids are closely involved,
</p>
<p>
Since lactic acid is produced by the breakdown of glucose, a high level of lactate in the blood means that a
large amount of sugar is being consumed; in response, the body mobilizes free fatty acids as an additional
source of energy. An increase of free fatty acids suppresses the oxidation of glucose. (This is called the
Randle effect, glucose-fatty acid cycle, substrate-competition cycle, etc.) Women, with higher estrogen and
growth hormone, usually have more free fatty acids than men, and during exercise oxidize a higher proportion
of fatty acids than men do. This fatty acid exposure "decreases glucose tolerance," and undoubtedly&nbsp;
explains&nbsp; women's&nbsp; higher incidence of diabetes.&nbsp; While most fatty acids inhibit the
oxidation of glucose without immediately inhibiting glycolysis, palmitic acid is unusual, in its inhibition
of glycolysis and lactate production without inhibitng oxidation. I assume that this largely has to do with
its important function in cardiolipin and cytochrome oxidase.
</p>
<p>
Exercise, like aging, obesity, and diabetes, increases the levels of circulating free fatty acids and
lactate. But ordinary activity of an integral sort, activates the systems in an organized way, increasing
carbon dioxide and circulation and efficiency. Different types of exercise have been identified as
destructive or reparative to the mitochondria; "concentric" muscular work is said to be restorative to the
mitochondria. As I understand it, this means contraction with a load, and relaxation without a load. The
heart's contraction follows this principle, and this could explain the observation that heart mitochondria
don't change in the course of ordinary aging.
</p>
<p>
When a person has an accident, or surgery, and goes into shock, the degree of lactic acidema is recognized
as an indicator of the severity of the problem. &nbsp; Lactated Ringer's solution has been commonly used to
treat these people, to restore their blood pressure. But when prompt treatment with lactated Ringer's
solution has been compared with no early treatment at all, the patients who are not "rescuscitated" do
better than those who got the early treatment. And when Ringer's lactate has been compared with various
other solutions, synthetic starch solutions, synthetic hemoglobin polymer solution, or simply a concentrated
solution of sodium chloride, those who received the lactate solution did least well. For example, of 8
animals treated with another solution, 8 survived, while among 8 treated with Ringer's lactate, 6 died.
</p>
<p>
Mitochondrial metabolism is now being seen as the basic problem in aging and several degenerative diseases.
The tendency has been to see random genetic deterioration as the driving force behind mitochondrial
aging.&nbsp; Genetic repair in mitochondria was assumed not to occur. However, recently two kinds of genetic
repair have been demonstrated. One in which the DNA strand is repaired, and another, in which sound
mitochondria are "recruited" to replace the defective, mutated, "old" mitochondria.
</p>
<p>
In ordinary nuclear chromosomal genes, DNA repair is well known. The other kind of repair, in which
unmutated cells replace the. genetically damaged cells, has been commonly observed in the skin of the face:
During intense sun exposure, mutant cells accumulate; but after a period in which the skin hasn't been
exposed to the damaging radiation, the skin is made up of healthy "young" cells.
</p>
<p>
In the way that the skin can be seen to recover from genetic damage, that had been considered to be
permanent and cumulative, simply by avoiding the damaging factor, mitochondrial aging is coming to be seen
as both avoidable and repairable.
</p>
<p>
The stressful conditions that physiologically harm mitochondria are now being seen as the probable cause for
the mitochondrial genetic defects that accumulate with aging. &nbsp; Stressful exercise, which has been
known to cause breakage of the nuclear chromosomes, is now seen to damage mitochondrial genes, too. &nbsp;
Providing energy, while reducing stress, seems to be all it takes to reverse the accumulated mitochondrial
genetic damage.
</p>
<p>
Fewer mitochondrial problems will be considered to be inherited, as we develop an integral view of the ways
in which mitochondrial physiology is disrupted. Palmitic acid, which is a major component of the cardiolipin
which regulates the main respiratory enzyme, becomes displaced by polyunsaturated fats as aging progresses.
Copper tends to be lost from this same enzyme system, and the state of the water is altered as the energetic
processes change.
</p>
<p>
While the flow of carbon dioxide moves from the mitochondrion to the cytoplasm and beyond, tending to remove
calcium from the mitochondrion and cell, the flow of lactate and other organic ions into the mitochondrion
can produce calcium accumulation in the mitochondrion, during conditions in which carbon dioxide
synthesis,&nbsp; and consequently urea synthesis,&nbsp; are depressed, and other synthetic processes are
changed.
</p>
<p>
Glycolysis produces both pyruvate and lactate, and excessive pyruvate produces almost the same inhibitory
effect as lactate; since the Crabtree effect involves nitric oxide and fatty acids as well as calcium, I
think it is reasonable to look for the simplest sort of explanation, instead of trying to experimentally
trace all the possible interactions of these substances; a simple physical competition between the products
of glycolysis and carbon dioxide, for the binding sites, such as lysine, that would amount to a phase change
in the mitochondrion.&nbsp; Glucose, and apparently glycolysis, are required for the production of nitric
oxide, as for the accumulation of calcium, at least in some types of cell, and these coordinated changes,
which lower energy production,&nbsp; could be produced by a reduction in carbon dioxide, in a physical
change even more basic than the energy level represented by ATP. The use of Krebs cycle substances in the
synthesis of amino acids, and other products, would decrease the formation of C02, creating a situation in
which the system would have two possible states, one, the glycolytic stress state, and the other, the carbon
dioxide producing energy-efficient state.
</p>
<p>
Besides the frequently discussed interactions of excessively accumulated iron with the unsaturated fatty
acids, producing lipid peroxides and other toxins, the accumulated calcium very probably forms some
insoluble soaps with the free fatty acids which are released even from intracellular fats during stress.
&nbsp; &nbsp; The growth of new mitochondria probably occasionally leaves behind such useless materials,
combining soaps, iron, and porphyrins remaining from damaged respiratory enzymes.
</p>
<p>
When the background of carbon dioxide is high, circulation and oxygenation tend to prevent the anaerobic
glycolysis that produces toxic lactic acid, so that a given level of activity will be harmful or helpful,
depending on the level of carbon dioxide being produced at rest.
</p>
<p>
Preventively, avoiding foods containing lactic acid, such as yogurt and sauerkraut, would be helpful, since
bacterial lactic acid is much more toxic than the type that we form under stress. Avoiding the
stress-promoting antithyroid unsaturated oils is extremely important. Their role in diabetes, cancer, and
other age-related and degenerative diseases (and I think this includes the estrogen-promoted autoimmune
diseases) is well established. Avoiding phytoestrogens and other things that increase estrogen exposure,
such as protein deficiency, is important, because estrogen causes increased levels of free fatty acids,
increases the tendency to metabolize them at the expense of glucose metabolism, increases the tissue content
of unsaturated fatty acids, and inhibits thyroid functions.
</p>
<p>
Light promotes glucose oxidation, and is known to activate the key respiratory enzyme. Winter sickness
(including lethargy and weight gain), and night stress, have to be included within the idea of the
"respiratory defect," shifting to the antirespiratory production of lactic acid, and damaging the
mitochondria.
</p>
<p>
Therapeutically, even powerful toxins that block the glycolytic enzymes can improve functions in a variety
of organic disturbances "associated with" (caused by) excessive production of lactic acid. Unfortunately,
the toxin that has become standard treatment for lactic acidosis—dichloroacetic acid—is a carcinogen, and
eventually produces liver damage and acidosis. But several nontoxic therapies can do the same things:<strong
>
Palmitate (formed from sugar under the influence of thyroid hormone, and found in coconut oil), vitamin
Bl, biotin, lipoic acid, carbon dioxide, thyroid, naloxone, acetazolamide, for example.</strong>
Progesterone, by blocking estrogen's disruptive effects on the mitochondria, ranks along with thyroid and a
diet free of polyunsaturate fats, for importance in mitochondrial maintenance.
</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
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© Ray Peat Ph.D. 2016. All Rights Reserved. www.RayPeat.com
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