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The grenades seem to slow the aging process.

Researchers at the Israeli Institute of Technology in Haifa suggest that take juice, pomegranate extract or oil in the long run may help slow the aging process and can reduce the chance of heart disease and even cancer. This fruit is rich in powerful antioxidants called flavonoids. Ethno - pharmacology, Jul. 1999) Publication Date: 04 / 06 / 2000.

Green tea against the misuse of computer.

EFE / 14. 04. 99.

Green tea is a beverage recommended for those who spend long hours at the computer, according to doctors participating in a conference on medicine at work in Vienna.

Spend many hours sitting in front of the screen has negative health consequences that result in burning eyes, back pain and general fatigue.

Michael Kundi, of the Institute of Environmental Health at the University of Vienna, recommended as a precaution conduct frequent breaks without waiting for the tired sight.

For his part, Marktl professor, Institute of Physiology Medical Vienna, said it is advisable to eat plenty of fluids, preferably green tea, a beverage that also encourages, helps prevent diabetes and high blood pressure, and protects against cavities.


Green tea against cancer.

An infusion of this substance inhibits tumor growth.


The cancer could be cured with something as natural as the tea? Although it sounds like a totally outlandish idea, a team of U. S. researchers has demonstrated that a basic ingredient of green tea can inhibit the growth of cancerous tumors.


A single cup of green tea contains 150 milligrams of catechin EGCG.

It has long been suspected that green tea could help fight certain types of cancer. Some experiments with mice had already shown that breast and prostate tumors could be reduced with this type of tea. Now, however, Jerzy Jankun and his colleagues in the Faculty of Medicine in Ohio just to verify this hypothesis in a study published today in Nature. These scientists have found that an ingredient in green tea can inhibit the activity of Urokinase, an enzyme that cancer tumors need to reproduce. There are three types of tea consumed regularly millions of human beings: 78% is black, 2% is known as oolung, and up to 20% is called green tea. All these teas contain substances called catechins, and is precisely one of these substances which can inhibit the development of cancer. In black tea, catechins are oxidized during the production so that its benefits disappear. However, in green tea, catechins are kept intact and one of them, called EGCG, is able to act against cancer.

To be able to invade cells in the human body and cause a metastasis, cancer depends on several enzymes. One is the Urokinase. Dr. Jankun and his colleagues have found that catechin EGCG containing green tea can inhibit the functioning of the Urokinase and thereby curb the proliferation of cancer tumors. The great advantage of the catechin EGCG containing green tea is that it does not cause toxic effects in humans. In the past they have discovered the Urokinase inhibitors, such as amiloride, but this substance can be taken in small doses (a maximum of 20 milligrams a day) because it produces harmful effects if taken in large quantities. However, a single cup of green tea contains 150 milligrams of catechin EGCG. "The Urokinase inhibitor containing high amounts in green tea could reduce the incidence of cancer with no side effects, say the scientists.

Green tea is enough to defeat ulcers.

This treatment can be supplemented by the ingestion of a clove of garlic.

If you want to protect your stomach against the ravages of heartburn and ulcers, can begin to ingest a daily cup of green tea and a banana. This infusion and fruit are part of the basic food in some tropical countries. It is scientific knowledge that these two foods have medicinal properties against ulcers. Its use goes back thousands of years. The evidence is so convincing that doctors often prescribe a dry powder made on the basis of green plantain, also known as Musapep.

The mechanism of action of green tea and banana surprise, since it does not neutralize stomach acid, as once thought. According to the British pharmaceutical Ralph Best, of the University of Aston in Birmingham, green tea and banana stimulates the proliferation of cells and mucus to form a stronger barrier between the gastric mucosa and the corrosive acid. Indeed, the experimental animals fed with green tea and banana powder present a visible thickening of the wall of the stomach.

The effectiveness of green tea.

The incidence of peptic ulcer disease among Japanese in very high, but it could be worse if not for green tea, says Dr. Yukimoto Hara, a researcher at the theme of food in Japan. Green tea contains large amounts of antioxidants called polyphenols and catechins antibacterials.

"It is proved that tea polyphenols reduced ulcers in humans, " said Hara. In the experiments that were conducted, those who consumed green tea after being administered chemical agents ulcerative made smaller and fewer ulcers. Indeed, when higher the concentration of the compounds of tea, the less the damage caused by ulcers. In low doses, the catechin reduced the incidence of ulcers in 22%, in moderate doses, at 47%, and in high doses, these compounds in tea slowed the development of ulcers by 100%.

Dr. Hara believes that the substances in tea are powerful enough to combat ulcers in humans. "The doses used were very low, similar to the amount of tea consumed in Japan normally, " he says. The mechanism is probably the antibacterial activity of catechin, although it is likely, also, that this compound also helps to neutralize the action of pepsin. Given that tea contains some caffeine, which could stimulate the secretion of acid, Dr. Hara recommends drinking decaffeinated tea. The black tea also contains catechins, but to a lesser extent that the green tea in Asia.

Olive oil and its protective effects against cancer.

The implementation of virgin olive oil on your skin after sunbathing protects you against skin cancer, demand for Japanese scientists. They found that using it as an after - sun lotion slows tumor growth in mice.

Radiation (UV) ultraviolet sunlight creates free radicals that damage the DNA in skin cells and drive the abnormal growth, leading often to alleviate cancer. Antioxidants such as vitamin E and absorb these radicals are thought to protect against UV damage.

Tan Masamitsu Ichihashi and his colleagues in the university's school of medicine, Kobe decided to find out if olive oil, which is a potent source of antioxidants, provides UV protection.

Gave hairless mice three sessions a week under UV solar lamps. Five minutes after treatment, her skin painted with extra virgin olive oil.

After 18 weeks, control mice started to grow tumors of the skin, and the mice treated with regular olive oil were little better. But the mice treated with extra virgin olive oil took to the additional six weeks to show any sign of cancer. Their tumors were smaller, less frequent and had less damage to the DNA of skin cells.

The researchers are quick to clarify that olive oil does not function as a solar screen. But demanding that apply olive oil after exposure to sunlight could help protect the skin from UV damage.

Additional reading:

Source: Journal of the Science of Dermatology (vol. 23, supplement 1 (5) p S45) scientist copyright © the new, limited RBI 2000.

Blocking tactics.

It can be a trap in the body autoimmune response to thwart HIV?

When the immune system goes wrong and begins to attack the body's own cells, the result can be devastating diseases such as rheumatoid arthritis, multiple sclerosis and Crohn's disease. But now a team of researchers from the U. S. The proposed traps body is to launch an autoimmune response as a way to block HIV infection. The new technique could avoid the problems that developers have found the vaccine when they try to target the AIDS virus, and can.

also be a useful way to address other diseases.

The researchers found that if you introduce a human protein into a virus, the body does not recognize as their own. Instead, create antibodies against what they think it's a viral protein, said John Schiller of the National Cancer Institute near the CC Washington. Using this strategy, Schiller in the laboratory has succeeded in producing antibodies against CCR5, a protein on the surface of human cells that form the closures of the ignition HIV) in monkeys.

Other studies had suggested that blocking CCR5, a co - receptor for CD4, could be an effective strategy against HIV. People with two defective CCR5 gene appear to be much less likely to become infected with HIV, and hard to develop AIDS if he does. People do not seem to suffer any harm if their CCR5 receptors were wounded, said Edward Berger of the National Institute of Allergy and Infectious Diseases near the CC Washington. "There is genuine interest in the idea of using antibodies against CR5. ".

The doctors injected and the antibodies manufactured to patients, to treat diseases such as psoriasis, arthritis and Crohn's disease. But the body clears these antibodies in a period of several hours or even weeks, so people need to inject further doses. Schiller was looking for a way to get the body to produce antibodies against itself. Sometimes it happens that a protein of the virus that is similar to those of humans can trigger an autoimmune disease. He wondered if he could use a virus to deliberately induce an autoimmune response.

His team used a type virus vaccine made from particles of shells Human Papilloma Virus with the mouse with a CCR5 on its surface. They noted last year that the mice to which they gave antibodies generated by vaccine, which limit their own CCR5 receptors. In studies with cell, these antibodies blocked HIV (proceedings of the National Academy of Sciences, vol. 96, p 2373)

The next step of progression was to try a similar experiment in macaques. ** ** a time - out virus particle "garnish" with macaque CCR5, to be homologous to be CCR5, just produce high antibody itself CCR5 against mono. Next, team want to try to infect monkeys with an HIV - like virus to see if CCR5 antibody protection. "If we can do in macaques, then sometimes that does not work that humans are small, " said last week at a meeting of Schiller vaccínea of research in the CC Washington. However, James Marion - medical school at Mount Sinai of medicine in New York who has used antibodies to treat Crohn's disease - had reservations. "My concern would be if you hitout, could have a price to pay. Actually we are dealing with processes vainly very nice. " But CCR5 can be a special case: neither mice nor the macaques in the experiments of Schiller showed any detrimental effect. "Have achieved some interesting results, " said a Berger. "Let's see if we succeed. ".

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