Medical Portal

Cut down firs are dangerous to health

December 31st, 2007

American experts from College of allergy, asthma and immunology have conducted the researches devoted to influence of New Year trees on the person.
It was found out that in a closed space the substances emitted by a fur-tree, can be extremely dangerous for highly allergic individuals.

Within the first three day after a celebratory tree has appeared indoors, it distributes 800 spores per square meter - a doze which slightly lags behind the maximum permissible norm.

But already in four days the amount reaches up to 5000. Such concentration extremely negatively influences state of highly allergic individuals and asthmatics.

For people, who are not subject to allergic reactions, such volume of spores in a room can also be dangerous, as they create additional stress for mucous membrane of respiratory tract.

Research has shown that the maximum permissible norm of coniferous tree’s presence in a premise makes four days.

American students have created an electronic stethoscope

December 28th, 2007

American students-physicians from Calvin College have created an electronic stethoscope, which uses OS µClinux as an operational system.
The new stethoscope is equipped with a small liquid-crystal display with one line of the text, for example, for information of patient’s pulse. The device can record an audiodata in high quality, convert them in the necessary format and send through USB connection to computer.

The stethoscope works using 32-bit microprocessor Freescale Coldfire MCF5275 which supports network Ethernet interface and hardware cryptography.

It is necessary to note, that the free software, such as Linux, is rarely used in medical devices, as US medical authorities reluctantly give authorization for use of such devices.

New lenses for old glasses

December 27th, 2007

Many people have to wear glasses, which require careful attitude as are very fragile. Last development of the scientists can a little facilitate the life.

Mineral lenses are made from an inorganic glass, color or without coloration. Inorganic glass is a firm, amorphous material, transparent in the certain optical range, received after cooling of glass forming components. Components of an inorganic glass are oxides of various chemical elements - silicon, boron, lead, phosphorus and others. Due to various variations of oxides’ structure, experts receive substances with various parameters of refraction, specific gravity, Abbe number.

Mineral glass lenses are characterized by high and stable optical properties and firmness to scratches. Mineral lenses are sun, completely painted, with a mirror covering or photochromic. The problem of “thick” lenses can also with ease be solved by means of mineral lenses - they are more thin, flat and lightweight because of lenticular and aspherical design of a surface.

An allergy reduces possibility of cancer

December 26th, 2007

Canadian scientific from hospital Mount Sinai(Ontario) have conducted some researches and found out, that excessive immune system activity doesn’t only provoke allergic diseases, but also prevent from pancreas cancer.
Scientists have conducted an experiment in which participated 654 persons with pancreas cancer and the same amount of healthy people.

Having studied medical patients’ histories scientists found out that people, suffering from allergies, fell ill with pancreas cancer 57 % less often than those who have never suffered from an allergy.

It is necessary to note, that the data of a new research enable scientists to study interrelation between allergies and some oncological diseases. In fact the reasons of such interrelation are unknown till now.

Pancreas cancer takes one of the first places among the reasons of mortality from oncological diseases. Only in the USA it is annually diagnosed about 30 thousand new cases of the disease and only 5 % of the patients can live more than 5 years after diagnosing.

Scientists created the microchip for cancer cells determination

December 25th, 2007

The group of the American scientists has managed to create a microchip, which can determine in blood the smallest fragments which have come off a primary cancer tumor and have got in a bloodstream (circulating malignant cells).
The novelty is a silicon chip as a plastic card in size with antibodies on its surface. These antibodies can determine protein contained in the majority of cancer tumors.

During the movement of blood along the chip, its surface draws malignant cells like glue. Therefore the microchip can find out one thousand malignant cells in 60 billion blood cells.

The new device has already been tested on blood samples of 68 patients with metastases from cancer of lung, prostate, breast, pancreas and large intestine. And, as scientists declare, they have managed to find out circulating malignant cells in 115 of 116 tested samples.

It is necessary to note, that circulating malignant cells in blood can lead to development of metastases outside the sick organ. These particles are fragile and rare, and are badly determined with the help of existing methods. Therefore scientists believe that the new technology can be used for diagnostics of cancer diseases, and also for the control of treatment’s efficiency.

Creative work keeps health

December 24th, 2007

Scientists from University of Texas in Austin have conducted a research which has allowed to draw the conclusion, that creative mood in work allows the person to keep health for longer.
Experts mark that as a result of the research they have established, that such factors as absence of routine, pleasure from work, an opportunity to study constantly and meet challenges promote the feeling of being healthier.

Besides, remuneration of labor is also an important factor.

Authors of the research appreciate effect of the creative work extremely high as, in their opinion, active employment allows to support health in the condition of a young man. Besides creative work allows to compensate lack of means - creative work has the same beneficial influence, as an increase of family income in 15 times.

It is necessary to note, that experts consider as the creative, work of the high status with the certain management functions, which demands analysis of huge amounts of information and taking of unordinary decisions.

Smoke of marihuana is more toxic, than tobacco smoke

December 20th, 2007

The group of Canadian scientists during a research has found out that tobacco smoke is not such toxic, as a smoke from marihuana smoking.

Marihuana smoke contains much more toxic cyanide and ammonia, than a cigarette with tobacco. Till now, scientists believed that tobacco smoking is more harmful not only for vessels, bronchus and lungs, but also causes strong addiction.

The earlier experiment has shown, that the youth who regularly smoked tobacco, failed to cope with physical and intellectual obligations, in comparison with marihuana smokers.

However the new research, during which experts studied the content of toxic substances in a smoke, has shown that a cloud from one cigarette with marihuana contains 20 % more ammonia and 3-5 times more cyanide, nitric oxide and aromatic amines, than a usual cigarette.

Scientists: neat figure rescues from cancer

December 19th, 2007

Group of experts within the framework of the international project has conducted some researches and found out hat even those people who do not suffer from excess weights, should aspire to grow thin, if they want to lower danger of cancer.

The World Fund of Cancer Researches has conducted the most serious analysis concerning connection of way of life and development of cancer diseases. They have studied data of 7 thousand researches, conducted for the last five years.

It was found out that it is very useful for adult not to put on weight, to avoid alcoholic drinks and those which contain sugar. Also experts recommend not to eat bacon or ham. Besides, everyone should aspire to be maximum slim.

Rectal cancer and breast cancer are included into the number of the most widespread diseases for today.

Israeli “frost” will remove a tumor without a scalpel

December 18th, 2007

Israeli company Arbel Medical has invented a new technology which, as it is hoped, will be shortly used for treatment of tumors and other benign and malignant neoplasms without surgical intervention.

Device IceSense is based on a method of cryotherapy which uses an extreme cold for destruction of affected tissues.

Founders of IceSense say that cryotherapy is easier than usual surgical operation. Besides, a patient recovers more quickly after it.

This method has less risk to leave in an organism cancer cells and does not leave scars at all.

IceSense is small on the size, therefore it can be used in local clinics. It also will save place in operating-rooms.

An inactive way of life influences mind

December 17th, 2007

Lack of physical activity threatens the person not only with excess weight, but also with mental disorder, starting from depression and finishing with serious diseases. To such conclusion came British scientists.

On their data, for today in Britain only 35 % of men and only 24 % of women support the physical activity at the recommended by experts level.

According to results of the researches, inactive people have twice more chances to fall into depression in comparison with active people. Besides, there are valid data proving that physical activity is a good medicine for depression.

Researchers from university of the English city of Bristol have established that physical activity reduces risk of primary neuronal degeneration’s development by a third. Scientists cannot explain such significant effect; however assume that it can be caused by improvements in cardiovascular system’s functioning, and also change of chemical processes in a brain.

Norm of physical activity for adults, recommended by British Ministry of Health, makes 30 minutes a day five times a week. According to this department, this recommendation is not kept by the most part of adult population of the country.

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