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- <strong>Meat physiology, stress, and degenerative physiology </strong>The US Department of
- Agriculture claims that the Pure Food and Drugs Act of 1906 and the Meat Inspection Act of the same year were
- passed because the food industry demanded them. Ordinary historians believe that Upton Sinclair's 1905 serial
- publication of his novel about the meat industry, The Jungle, caused the public and Theodore Roosevelt to
- pressure Congress to pass the laws. Sinclair's descriptions of the use of poisonous preservatives and deodorants
- to disguise the smell of rotten meat angered the public and the president enough to overcome the industry
- pressure that had kept the US Congress from regulating the commercial food supply long after European
- governments had begun regulating food production and sales.Before the government's intervention, it was common
- practice to soak all kinds of meat in water or chemical solutions to increase their weight. At present, the US
- Department of Agriculture, through the mass media and funding the training of food technologists and "meat
- scientists," now takes the position that it is natural for meat to leak water after it is packaged, and says it
- is perfectly legal for meat producers to soak the meat in water with chemicals until it has increased its weight
- by 8%. The chemicals, such as trisodium phosphate (in a solution strength as high as 12%), are chosen because
- they powerfully stimulate swelling and water retention. Considerable amounts of some chemicals, such as sodium
- citrate, are allowed to add to the weight of the meat. The use of ozone and hydrogen peroxide to deodorize meat
- causes instantaneous oxidative changes, including lipid peroxidation and protein carbonyl formation, as well as
- increasing water retention.Most supermarket meat is now packaged with thick diapers so the buyer won't notice
- that he is paying for a sizeable amount of pink water. The USDA has an internet site, and consumer hotlines, to
- inform angry consumers that they are mistaken if they believe that meat shouldn't leak. They explain that meat
- is now "bred" to contain less fat, and so it contains more water, and that it is simply the leanness of the meat
- that accounts for its poor flavor.Before the slaughtered animal is put into the soaking solution to gain a
- specific amount of weight, the animal has almost always been treated in ways that cause it to go to slaughter in
- a state of massive edema. Even before the meat is soaked, the animal has been treated to maximize its water
- retention.Muscle physiologists and endocrine physiologists know that fatigue, stress and excess estrogen can
- cause the tissues to swell hugely, increasing their weight and water content without increasing their protein
- content.As soon as cheap synthetic estrogens, such as DES, became available in the 1940s, their use in animals
- was promoted because it was clear that they caused massive water retention. Women who suffer from
- hyperestrogenism always have a problem with water retention, but they have never been known to suffer from
- over-developed skeletal muscles. In fact, in humans of both sexes, an excess of estrogen has been commonly
- associated with sarcopenia, muscular dystrophy, and atrophy of the skeletal muscles. Similar observations have
- been made in a variety of animals. Meat scientists are the only people I know of who have ever referred to
- estrogen as an anabolic steroid, in the sense of "building muscle."When it was publicized around 1970 that DES
- is powerfully carcinogenic, after it had been used for several decades in the meat industry, its use was
- outlawed, but its illegal use continued and was overlooked by the US government. The Swiss government has
- rejected meat from a large producer in Kansas because it contained DES. Other estrogens are openly used, and the
- US government continues to apply pressure to other countries to accept meat exports containing estrogens.There
- are many ways to increase the water content of meat, besides feeding estrogen to the animal and soaking the meat
- after slaughter. Everything that causes water retention and tissue swelling in the living animal, that is, every
- kind of stress, fatigue, poisoning, malnutrition and injury, will make the animal gain weight, without consuming
- expensive nutritious food. Crowding, fright, and other suffering increase water retention and accelerate the
- breakdown of fats and proteins.The water content of meat shouldn't be increased by any of those methods, not
- only because it is a form of stealing from the consumer, but because it makes the product toxic and
- unappetizing, and makes the production process a degrading experience. Any chemicals, such as estrogen or
- arsenic, that remain in the meat are of course harmful to the consumer, but the changes they produce in the
- animals' tissues are the main problem. When grains and soybeans are used for fattening animals, their
- characteristic fatty acids are present in the meat, and are harmful to the consumer, but their complex
- degradation products, such as isoprene, acrolein, and isoprostanes, remain, along with the complex changes they
- induce in every aspect of the tissue. The reactive products of oxidative fat degradation stimulate, among other
- things, the adaptive/defensive production of polyamines, small molecules derived from amino acids. The
- polyamines, in turn, can be oxidized, producing highly toxic aldehydes, including acrolein (Sakata, et al.,
- 2003). These molecules stimulate cell multiplication, and alter, at least temporarily, the way the cell's genes
- function.An excess of water stimulates cell division, and an important mechanism in producing that effect is the
- increased production of polyamines by the enzyme ornithine decarboxylase. This enzyme is activated by an excess
- of water (hypotonicity), by estrogen, and by stress.Besides stimulating cell division and modifying the cell's
- state of differentiation (including developmental imprinting), the polyamines also contribute to nerve cell
- excitation and excitotoxicity. Estrogen and excess water can contribute to nerve cell excitation, for example
- producing convulsive seizures. The polyamines are increased during seizures, and they can affect the stability
- of the nerve cells, for example contributing to cocaine's seizure-sensitizing action. Although they tend to
- block free radicals, they accelerate nerve injury (Yatin, et al., 2001), and can contribute to breakdown of the
- blood-brain barrier (Wengenack, et al., 2000, Koenig, et al., 1989).The polyamines are increased in cancers, and
- therapies to block their formation are able to stop the growth of various cancers, including prostate, bowel,
- and breast cancer. Metabolites of the polyamines in the urine appear to be useful as indicators of cancer and
- other diseases. (In pancreatic cancer, Yamaguchi, et al., 2004; in cervical cancer, Lee, et al., 2003; in adult
- respiratory stress syndrome, Heffner, et al., 1995.) The quantity of polyamines in the urine of cancer
- patients has been reported to be 20 times higher than normal (Jiang, 1990). Polyamines in the red blood cells
- appear to indicate prognosis in prostate cancer (Cipolla, et al., 1990).The prostaglandins in semen have been
- suspected to have a role in producing cervical cancer (Fernandez, et al., 1995).In protein catabolism, one fate
- of the protein's nitrogen is to be converted to the polyamines, rather than to urea. In plants, at least, these
- small molecules help cells to balance osmotic stresses.Adding water to meat, or stressing the animals before
- slaughter, will increase the meat's content of the polyamines, but the longer the meat is stored, the greater
- will be the production of reactive oxygen products and polyamines. The deliberate "aging" of meat is
- something that the meat scientists often write about, but it has a peculiar history, and is practiced mainly in
- the English speaking cultures. When a supermarket in Mexico City began selling U.S.-style meat for the American
- colony, I got some T-bone steaks and cooked them for some of my Mexican friends. The meat wasn't water-logged
- (it was 1962, and the beef had been grown in Mexico), but it had been aged for the American customers, and
- though my friends ate the steaks for the sake of politeness, I could see that they found it difficult. In
- Mexico, even in the present century, butcher shops often don't have refrigeration, and they don't need it
- because they sell the meat immediately. The fresh meat tastes fresh. Traditionally, liver is sold only on the
- day of slaughter, because its high enzyme content causes it to degrade much faster than the muscle meats. When
- it is fresh, it lacks the characteristic bad taste of liver in the US. Both the liver and the muscles
- contain a significant amount of glycogen when they are fresh, if the animal was healthy. At first, the lack of
- oxygen causes the glycogen to be metabolized into lactic acid, and some fatty acids are liberated from their
- bound form, producing slight changes in the taste of the meat. But when the glycogen has been depleted, the
- anaerobic metabolism accelerates the breakdown of proteins and amino acids.In the absence of oxygen, no carbon
- dioxide is produced, and the result is that the normal disposition of ammonia from amino acids as urea is
- blocked, and the polyamines are formed instead. The chemical names of two of the main poly-amines are suggestive
- of the flavors that they impart to the aging meat: Cadaverine and putrescine. After two or three weeks of aging,
- there has been extensive breakdown of proteins and fats, with the production of very complex new mixtures of
- chemicals.Mexicans, despite their low average income, have a very high per capita consumption of meat, as do
- several other Latin American countries. Argentina has a per capita meat consumption of nearly a pound a day.
- There is a lot of theorizing about the role of meat in causing cancer, for example comparing Japan's low
- mortality from prostate cancer, and their low meat consumption, with the high prostate cancer mortality in the
- US, which has a higher meat consumption. But Argentina and Mexico's prostate cancer mortality ranks very
- favorably with Japan's. If meat consumption in the US contributes to the very high cancer rate, it clearly
- isn't the quantity of meat consumed, but rather the quality of the meat.The polar explorer Vilhjalmur Stefansson
- was interested in the health effects of a diet based on meat, because of his observation that fresh meat
- prevented scurvy much more effectively than the fruits and vegetables carried by other polar explorers. He
- commented on the importance of culture and learning in shaping food preferences:"In midwinter it occurred to me
- to philosophize that in our own and foreign lands taste for a mild cheese is somewhat plebeian; it is at least a
- semi-truth that connoisseurs like their cheeses progressively stronger. The grading applies to meats, as in
- England where it is common among nobility and gentry to like game and pheasant so high that the average
- Midwestern American or even Englishman of a lower class, would call them rotten. "I knew of course that,
- while it is good form to eat decayed milk products and decayed game, it is very bad form to eat decayed fish. I
- knew also that the view of our populace that there are likely to be "ptomaines" in decaying fish and in the
- plebeian meats; but it struck me as an improbable extension of the class-consciousness that ptomaines would
- avoid the gentleman's food and attack that of a commoner. "These thoughts led to a summarizing query; If it
- is almost a mark of social distinction to be able to eat strong cheeses with a straight face and smelly birds
- with relish, why is it necessarily a low taste to be fond of decaying fish? On that basis of philosophy, though
- with several qualms, I tried the rotten fish one day, and if memory serves, liked it better than my first taste
- of Camembert. During the next weeks I became fond of rotten fish."Since Stefansson's observations nearly a
- century ago, most Americans have become accustomed to the taste of half-spoiled meat, as part of the process of
- adapting to an industrial-commercial food system. Tests done by food technologists have found that most
- Americans prefer the taste of synthetic strawberry flavor in ice cream to the taste of ice cream made with real
- strawberries. If it took Stefansson only a few weeks to become fond of rotten fish, it isn't surprising that the
- public would, over a period of many decades, learn to enjoy a diet of stale foods and imitation
- foods. Polyamines are increased in stressed and stored vegetables, as in aged meats. This defensive
- reaction retards tissue aging, and researchers are testing the application of polyamines to fruits to retard
- their ripening. A plastic surgeon, Vladimir Filatov, discovered that tissue stored in the cold stimulated the
- healing process when used for tissue reconstruction, such as corneal transplants. He found that stressed plant
- tissues developed the same tissue stimulants. Another pioneer of tissue transplantation, L.V. Polezhaev, saw
- that degenerating tissue produced factors that seem to activate stem cells.Although the diffusion of these
- stimulating factors from stressed tissues normally functions to accelerate healing and tissue regeneration,
- under less optimal conditions they are undoubtedly important factors in tissue degeneration and tumor formation.
- For example, the bystander effect (contributing to delayed radiation damage, and producing a field of
- precancerous changes around a cancer), in which substances diffusing from injured tissues damage surrounding
- cells, involves disturbances in polyamine metabolism.The direct, optimal effects of the polyamines are
- protective, but when excessive, prolonged, or without maintained cellular energy, they become harmful.The
- expression of genes involves their physical arrangement and accessibility to enzymes and substrates. The
- negatively charged nucleic acids are associated with positively charge proteins, the histones. The very small
- positively charged polyamines can powerfully modify the interactions between histones and DNA. In recent years
- people have begun to speak of the "histone code," as a kind of expansion of the idea of the "genetic code." But
- the polyamines, produced in response to stress, might be thought of as a complex expansion of the "histone
- code."The addition of small molecules, methyl and acetyl groups, to the large molecules can regulate the
- expression of genes, and these patterns can be passed on transgenerationally, or modified by stress. Barbara
- McClintock's "controlling factors" were mobile genes that caused the genome to be restructured under the
- influence of stress. Her discoveries were the same as those made by Trofim Lysenko decades earlier, and like his
- observations, McClintock's were angrily rejected until the 1980s, when the genetic engineering industry needed
- some scientific background and natural precedent for their unnatural intervention in the genome.The brain is
- extremely different from a malignant tumor, and the derangements produced by stress, by high cortisol and
- estrogen and an excess of water, are different in the two types of organ (considering the tumor as an ad hoc
- organ), but the polyamines have central roles in the degenerating brain and in the divergent disorganization of
- tumors. Their importance in stress physiology is coming to be recognized, along with the meaning of "epigenetic
- development," in which the influence of the environment becomes central, rather than just a place in which the
- "genotype" is allowed to passively express its "genetic potential." Every developmental decision involves an
- evaluation of resources and their optimal marshaling for adaptation. The polyamines are part of the cytoplasm's
- equipment for controlling the genome. The ratio between the different types of polyamine governs the nature of
- their regulation of cellular functions.The old idea, "one is what one eats," has evolved far beyond ideas of
- simple nutritional adequacy or deprivation, and it's now commonly accepted that many things in foods have fairly
- direct effects on our brain transmitters and hormones, such as serotonin, dopamine, adrenalin, endorphins,
- prostaglandins, and other chemicals that affect our behavior and physiology.In 1957 James McConnell discovered
- that when flatworms were fed other flatworms that had been trained, their performance was improved by 50%,
- compared with normal flatworms. Later, similar experiments were done with rats and fish, showing that tissue
- extracts from trained animals modified the behavior of the untrained animals so that it approximated that of the
- trained animals. Georges Ungar, who did many experiments with higher animals, demonstrated changes in brain RNA
- associated with learning, and he and McConnell believed that proteins and peptides were likely to be the type of
- substance that transmitted the learning.A dogmatic belief that "memory molecules" would be unable to penetrate
- the "blood-brain barrier" allowed most biologists to dismiss their work. Ungar's death, and the hostility of
- most biologists to their work, have caused their ideas to be nearly forgotten for the last 30 years. Negatively
- charged molecules such as ordinary proteins tend to be repelled by negative charges on the wall of capillaries,
- but positively charged molecules spontaneously associate with cellular proteins, and easily penetrate the
- barrier. Highly positively charged molecules tend to concentrate in the brain (Jonkman, et al., 1983), and
- people are currently attempting to use the principle to deliver antibodies (which are normally excluded from the
- brain) therapeutically to the brain by combining them with small positively charged molecules (Herve, et al.,
- 2001). This affinity of the brain for positively charged molecules is gradually being recognized as an important
- factor in the toxicity of ammonia and guanidine derivatives. As mentioned earlier, even endogenous polyamines
- can be involved in disruption of the blood-brain barrier.So, apart from the question of exactly what molecules
- were responsible for the learning transfer produced by McConnell and Ungar, there should be no doubt that
- polyamines derived from food can enter tissues, especially the brain. People who eat meat from stressed animals
- are substantially replicating the experiments of McConnell and Ungar, except that people normally eat a variety
- of foods, and each type of food will have had slightly different experiences in its last days of life. But the
- deliberate aging of meat is subjecting it to a standardized stress--two or three weeks of cold storage. Because
- of the great generality of genetic processes, it wouldn't be surprising if cold storage of vegetables turned out
- to produce polyamine patterns similar to those of cold storage meats. Air pollution and other stressful growing
- conditions cause vegetables to have very high levels of polyamines.Prolonged exposure to certain patterns of
- polyamines might produce particular syndromes, but the mere fact of increasing the total quantity of polyamines
- in our diet is likely to increase the incidence of stress-related diseases. Experiments with cells in culture
- show that added polyamines can produce a variety of extremely harmful changes, but so far, there has been almost
- no investigation of their specific regulatory functions, of their "code."Besides rejecting stale foods produced
- under stressful conditions, there are probably some specific ways that we can protect ourselves from polyamine
- poisoning.When the organism is functioning efficiently, its respiration is producing an abundance of carbon
- dioxide, which protectively modifies many systems and structures. Adequate carbon dioxide protects against
- fatigue, cellular and vascular leakiness, edema and swelling.Increasing carbon dioxide will tend to direct
- ammonia into urea synthesis, and away from the formation of polyamines. Bicarbonate protects against many of the
- toxic effects of ammonia, and since carbon dioxide spontaneously reacts with amino groups, it probably helps to
- inactivate exogenous polyamines. This could account for some of the protective effects of carbon dioxide (or
- high altitude), for example its anti-seizure, anticancer, and antistress effects.Other things that protect
- against excessive polyamines are procaine and other local anesthetics (Yuspa, et al., 1980), magnesium, niacin,
- vitamin A, aspirin, and, in some circumstances, caffeine. Since endotoxin stimulates the formation of
- polyamines, a diet that doesn't irritate the intestine is important. Tryptophan and methionine contribute to the
- formation of polyamines, so gelatin, which lacks those amino acids and is soothing to the intestine, should be a
- regular part of the diet.Because the polyamines intensity the neurotoxic and carcinogenic effects of estrogen
- and of polyunsaturated fats, those three types of substance should be considered as a functional unit in making
- food choices. (Grass-fed organic beef fresh from a local farm would be a reasonable choice.) Unfortunately, the
- meat industry has maximized all of those dangers, just for the increased weight of their
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