GREEN TEA (CAMELLIA SINESIS (L.) O. KUNTZE = THEA SINENSIS L.)

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	GREEN TEA
	*CAMELLIA SINESIS (L.) O. KUNTZE = THEA SINENSIS L.*

Name
GREEN TEA

Scientific Name
CAMELLIA SINESIS (L.) O. KUNTZE = THEA SINENSIS L.

GREEN TEA

The grenades seem to restrain the aging process

Investigators of the Israeli Institute of Technology in Haifa suggest to take juice, extract or oil of distinguished in the long term can help to slow down the aging process and can diminish the possibility even of suffering cardiac diseases and the cancer. This fruit is very rich in powerful antirust flavonoides calls. (Ethno-pharmacology, Jul. 1999). Date of the publication: 04/06/2000

Green tea against the computer abuse

EFE/ 14.04.99

The green tea is a recommendable drink for those who spend many hours before the computer, according to the participant doctors in a congress on medicine in the work celebrated in Vienna.

To spend many hours seated in front of the screen has negative consequences for the health that are translated in ardor of eyes, backache and general fatigue.

Michael Kundi, of the Institute of Environmental Hygiene of the University of Vienna, recommended as precaution to make frequent pauses without hoping to that the Vista gets tired.

On the other hand, professor Marktl, of the Institute of Medical Physiology of Vienna, preferably said that he is advisable to ingest much liquid, green tea, a drink that in addition animates, aid to prevent the diabetes and the high pressure, and protects against the decay.

NUTRITION

Green tea against the cancer

A substance of this infusion inhibits the tumorlike growth

_________________

PABLO JÁUREGUI

Could be cured the cancer with something as natural as the tea? Although it seems a totally preposterous idea, a team of American investigators finishes demonstrating that a basic ingredient of the green tea is able to inhibit the uncontrolled growth of the cancerous tumors.

PHOTODISC

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

A long time ago one suspected that the green tea could serve to fight certain types of cancer. Some experiments with mice already had demonstrated that the tumors of breast and prostate could be reduced with this type of tea. Now, nevertheless, Jerzy Jankun and its colleagues of the Medicine Faculty of Ohio finish verifying this hypothesis in a study that is published today in Nature. These scientists have verified who an ingredient of the green tea can inhibit the activity of uroquinasa, an enzyme that needs the cancerous tumors to reproduce. Three types of tea exist that consume million human beings habitually: 78% are black, a 2% are known like oolung, and until a 20% green tea is denominated. All these infusions contain denominated substances catequinas and is, indeed, one of these substances the one that is able to inhibit the proliferation of the cancer. In the black tea, the catequinas oxidize during their production reason why their beneficial effects disappear. Nevertheless, in the green tea, the catequinas stay intact and one of them, denominated EGCG, is able to act against the cancer.

In order to be able to invade the cells of the human body and to cause a metástasis, the cancer depends on several enzymes. One of them is uroquinasa. Doctor Jankun and his colleagues have verified who the catequina EGCG that contains the green tea is able to inhibit the operation of uroquinasa and to restrain therefore the proliferation of the cancerigenic tumors. The great advantage of the catequina EGCG that contains the green tea is that it does not cause poisonous effects in the human organism. In the past other inhibitors of uroquinasa have been discovered, like for example the amilorida one, but this substance can only be taken in small doses (a maximum of 20 milligrams to the day), because it produces injurious effects if it is taken in great amounts. Nevertheless, a single green tea cup contains 150 milligrams of catequina EGCG. "the inhibitor of uroquinasa that contains the green tea in high amounts could reduce the incidence of the cancer without indirect effect", assure the scientists.

Green tea is sufficient to defeat ulcers

This treatment can be complemented with the ingestion of a garlic tooth

If it wishes to protect his stomach against the damage of the acidity and the ulcers, can begin with daily ingesting a green tea cup and a banana. This infusion and fruit comprise of the basic feeding of some tropical countries. Scientific knowledge is had that these two foods have medicinal properties against the ulcers. Its use goes back to thousands of years. The tests are so convincing that the doctors usually prescribe a dry dust done in base of the green banana, also known like Musapep.

The mechanism of action of the green tea and the banana astonishes, since it does not neutralize acid of the stomach, as it thought sometimes. According to British phamacist Ralph Best, of the University of Aston, Birmingham, the green tea and banana stimulate the proliferation of cells and snot to hard form one more a barrier between the gastric mucosa and corrosive acid. In effect, the animals of experimentation fed with green tea and dust banana present/display a visible thickening of the wall of the stomach.

The effectiveness of the green tea

The incidence of peptic ulcer between the Japanese in very high, but could not outside be worse if by the green tea, assures doctor Yukimoto Hara, investigator of the subject of the feeding in Japan. Antibacterial and antirust the green tea contains great amount of polifenoles denominated catequinas.

"it is verified that polifenoles of the tea reduces the ulcers in the human beings", Hara says. In the experiments that were made, those that consumed green tea after having to it them administered ulcerativos chemical agents contracted less smaller ulcers and. In effect, when greater it is the concentration of compounds of the tea, minor will be the damage caused by the ulcers. In low doses, the catequina reduced the incidence of ulcers in 22%, moderate doses, in 47%, and in high doses, these compounds of the tea restrained the development of the ulcers in a 100%.

Doctor Hara thinks that the substances of the tea are the sufficiently powerful thing to fight the ulcers in the human beings. "the used doses are very low, similar to the amount of tea consumed normally in Japan", says. The mechanism probably is the antibacterial activity of the catequina, although it is probable, also, that this compound also helps to neutralize the action of the pepsina. In view of which the tea contains something of caffein, which could stimulate the acid secretion, doctor Hara recommends to drink tea decaffeinated. The black tea also contains catequinas, but in smaller proportion than the green tea of Asia.

The olive oil and its protective effects against the cancer.

The APPLICATION of the virgin olive oil to its skin after taking the sun protects to him against cancer of the skin, demands Japanese scientists. They have found that to use it as lotion stops after the sun it slows down the growth of the tumor in mice.

The radiation (UV) ultraviolet in light of the sun creates the free radicals that damage the DNA in cells of the skin and drive the abnormal growth, leading often to palliate the cancer. Antirust such as the vitamin and absorbs these radicals and they think to protect against damage UV.

So Masamitsu Ichihashi and its colleagues of the school of the university of Kobe of the medicine decided to discover if the olive oil, that is a powerful source of antirust, provides to protection UV.

They gave to mice without hair three sessions UV to the week under solar lamps. Five minutes after the treatment, painted their skin with extra virgin olive oil.

After 18 weeks, it controls the begun mice to grow tumors of the skin, and the mice dealt with normal olive oil went away little better. But the mice dealt with extra virgin olive oil took the six additional weeks to show any sample of the cancer. Their tumors were smaller, less it frequents and there was less damages in the DNA of the cells of the skin.

The investigators are fast to need that the olive oil does not work like a solar screen. But they demand that to be applied olive oil after the exhibition to the sun he could help to protect the skin against damage UV.

Additional reading:

Source: Newspaper of the science of the dermatology (vol. 23, supplement 1(5), p S45) scientist of copyright of Š the new one, RBI limited 2000

Blockade of tactics

Can the body be trampear in an answer autoinmune to frustrate the VIH?

WHEN the immune system goes bad and begins to attack own cells of the body, the result can be devastating diseases such as reumatoide arthritis, multiple sclerosis and disease of Crohn. But now a team of the investigators of the U.S.A. is proposing to trampear the body in sending to an answer autoinmune like way to block the infection of the VIH. The new technique could avoid the problems that the vaccine revealers have found when they try to point the virus of the AIDS, and can

also to be a useful way to treat other diseases.

The investigators discovered that if introduces a human protein in a virus, the body will not recognize it like own. In place, he will create antibodies against which thinks that it is a viral protein, says Juan Schiller of the national institute of the cancer near the C.C. of Washington. Using this strategy, Schiller in the laboratory has managed to produce antibodies against CCR5, (a protein in the surface of human cells that forms the closings of that ignited VIH) in monkeys.

Other studies had suggested blocking CCR5, a Co-receiving for CD4, could be an effective strategy against HIV. The people with two defective genes CCR5 seem to be much less probable to become infected with the VIH, and lasts to develop the AIDS if he does it. People do not seem to suffer no damage when their receivers CCR5 are disabled, says to Edward Berger of the national institute the infectious allergy and diseases near the C.C. of Washington. " there is true interest in the idea to use antibodies against CR5. "

The doctors already inject the manufactured antibodies to patients, to treat diseases such as soriasis, arthritis and disease of Crohn. But the body flock these antibodies in a period of time of several hours or even weeks, so people need to inject new doses. Schiller looked for a way to obtain that the body made antibodies against itself. Sometimes, it happens that a protein of the virus that resembles itself those of the human being can drive a disease autoinmune. He asked himself if he could use a virus to induce an answer deliberately autoinmune.

Its equipment used a bovine type virus done with particles of shells of the human virus of papilloma with the mouse with a CCR5 in its surface. They indicated to the last year that the mice to which they gave these antibodies them generated by vaccines, that limit their own receivers CCR5. In studies made with cell, these antibodies blocked VIH (procedures of the National Academy of Sciences, vol. 96, p 2373).

The progression passage following era to try a similar experiment in macacos. ** Time-out ** one virus particle " to adorn " with macaque CCR5, that to be homologous CCR5 in being, producing right stop level antibody against own monkey CCR5. Following, equipment to wish to try to infect monkey with one HIV-like virus to see if CCR5 antibody protect. " if we can do it in macaques, later the occasions that do not work in which human beings are small, " the week last happiness of Schiller in a vaccínea meeting of the investigation in the C.C. of Washington. Nevertheless, James Marion -- doctor in the school of Sinaí of the assembly of the medicine in New York that has used antibodies to deal with the disease Crohn - has reserves. " my preoccupation would be if you strike [ CCR5 ] towards outside, could have a price to pay. We are really taking care vainly with very pretty processes. " But CCR5 can be a special case: neither the mice nor macaques in the experiments of Schiller showed any detrimental effect. " they have obtained some interesting results, " it says to Berger. " let us see if they obtain it. "

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