Medical Portal

Scientists have revealed an anticancer gene

November 26th, 2007

Scientists from the British Institute of child’s health and the Italian University of Modena and Rejio Emily during research have found out a gene which determines risk of cancer development.

In research took part about 400 patients with a colon cancer, brain-growth or a chronic blood cancer.

In a result it has been established, that two variants of B-MYB gene were met at healthy people twice more often, than at oncological patients. Hence, scientists have drawn a conclusion, that carriers of two variants of this gene are less often ill with oncological diseases.

According to the last data, occurrence of anticancer variants of B-MYB gene varies in various ethnic groups: in particular, their carriers are 40 % of Italians, 50 % of natives from Africa and only 10 % of white Americans.

Researchers believe that new opening will help to create new methods of struggle against cancer.

Marihuana prevents growth of cancer cells

November 21st, 2007

The American scientists from California Pacific Medical Center, who conducted experiments on cellular lines, came to a conclusion that the substance CBD, contained in marihuana, prevents dissemination of breast cancer.

Scientists headed by Sean MacAlister have conducted a research and found out that with CBD’s help it is possible to block activity of a gene Id-1, which is responsible for distribution of cancer cells throughout an organism.

Scientists believe that blocking of gene Id-1 can be good alternative to chemotherapy as it has no side-effects. Besides, this substance does not have psychoactive action; therefore its application is ideal for the medical purposes.

However researchers warn that smoking marihuana to get rid or prevent cancer won’t help, as in such a way it is almost impossible to reach effective concentration of CBD.

Every eighth person has the latent brain pathology

November 13th, 2007

The research conducted by the Dutch scientists has shown, that 13 % of healthy people after 45 years have “silent” cerebral affection, including asymptomatic insults, aneurysms and tumors, informs New England Journal of Medicine.

Aad van der Lugt and his colleagues from Erasmus Medical Center in Rotterdam have studied brain condition of 2000 healthy people with the help of magnetic resonance imaging procedure.

By results of the research 7,2 % of volunteers had an asymptomatic insult, informed scientists. Other most widespread finds were brain aneurysms (1.8 % the person) and innocent tumors (1,6 %).

Meanwhile, asymptomatic insults double risk of weak-mindedness development and three times increase risk of the subsequent insults, informed Lugt. At that he has noted, that there are no treatment which would allow to reduce this risk.

Making comments on the new data, experts from the USA have noted that they did not expect to see so high percentage of the latent brain pathologies. Nevertheless, they are against introduction of the obligatory MRI- brain screening, as it can cause «unnecessary anxiety», while the majority of revealed pathologies can not be treated.

Take care of healthy food to prevent cancer

October 25th, 2007

Many people like to eat tasty and nourishing, but the main thing is not to do much harm. The vegetable food can help to avoid, and, probably, to overcome such enemy, as a cancer.

Experts from University of Manitoba have conducted the research and found out that treatment of this illness will be more successful at presence of the certain substances in an organism. Anticancer medicines, which contain metomicin in their structure, bring result provided that there is an enzyme coded NQ01 in the organism. But enzyme NQ01 will not be secreted, if there is no dimethylfumarat in the organism. It is necessary to notice, that almost all vegetative cells have this very dimethylfumarat. So, as it appeared, sometimes to eat vegetables and fruits will be useful not only to be in good form, but also to prevent oncological diseases.

Stress at work leads to a cancer

October 22nd, 2007

Women, who experience stress at work, have bigger chances to be taken ill with breast cancer, - have found out scientists. If work morally exhausts, the risk of this illness raises by 30 percents.

Results of this research, which covers 36 thousand women, deny the previous researches, which have not revealed connection between stress and breast cancer, informs Daily Mail.

Annually 44 thousand women are diagnosed with “breast cancer”. 12 thousand die from this disease every year. Though death rate from it is reduced, the number of fallen ill constantly grows. The reasons are an unhealthy mode of life, poor ecology, alcoholism, refusal to breast-feed and late delivery.

The new research, which will be published in the nearest number of Epidemiology magazine, is focused on stress.

The reason, why stress can increase risk of cancer, is not clear meanwhile. The previous researches say about possible increase of estrogen which can provoke cancer. Other theory is in that that the stress changes behavior of women, forcing them to lead a wrong way of life, to smoke and so on.

Meantime, the earlier Denmark examination of 7 thousand women, which lasted for 18 years, has shown an opposite results: the women, who experience a lot of stress, more rarely are ill with breast cancer.

Mobile phones encourage tumors of brain

October 11th, 2007

Use of mobile phone within ten and more years considerably increases risk of brain tumors – glioma and acoustic neurinoma. Most frequently tumors appear on that half of head which mainly adjoins to a mobile phone during the conversation.

According to Occupational Environmental Medicine, Swedish scientists from University Orebro have analyzed the data of 11 researches conducted in the Great Britain, USA, Germany, Japan, Finland, Denmark and Sweden. All of them were devoted to interconnection between use of mobile phones and development of tumors, and contained the information about the people, who have used phones within ten and more years.

In most cases tumors arose on that side of a head which mainly adjoined with mobile phone during conversation.

Received by the Swedish scientists data are contrary to the results of some earlier researches. In particular, the research conducted last January in Great Britain has not revealed interrelation between use of mobile phones and risk of glioma.

Moreover, some researchers assure that radiation of mobile devices does not have negative influence on cells or DNA.

Birth-pills reduce risk of cancer

October 1st, 2007

Taking oral contraceptive means essentially reduces threat of cancer. Such is the conclusion of one of the largest works, according to The Times, devoted to cancer studies.

As the research has shown, women who have taken birth-pills for 8 years or less, have 12 % less risk to be ill with any form of cancer, including colorectal cancer, rectal cancer, carcinoma of uterine tubes.

What is typical, women who have taken tablets for more than 8 years, on the contrary, are at an increased risk of cancer.

Group of researchers from Aberdeen University has summarize material which has been collected since 1968 in Royal medical college on the basis of the data received from 1400 attending doctors, whose patients have taken contraceptive pills.

The published information proves that contraceptive pills reduce risk of any form of cancer, though the degree of beneficial influence varies from the time for which you have take these tablets.

Connection between immunodeficiency and cancer diseases is proved

September 5th, 2007

Lancet Magazine has published results of the grandiose epidemiological research which have proved connection between immunodeficiency and cancer diseases.

7 researches of HIV-positive patients have been included in the meta-analysis (number of participants - 444172), conducted in the USA, Australia, Scotland, Italy, Switzerland and England, and 5 researches which have included recipients of transplants (number of participants - 31977), and conducted in Denmark, Finland, Sweden, Austria and Canada. At these two groups of absolutely different patients with common immunodeficiency (in the first case - infectious, in the second - artificial) scientists found out frequency of development of 33 kinds of cancers.
It appeared that presence of immunodeficiency raises sickness rate of 28 kinds of cancer. The cancer “probably connected” to a virus of papilloma was 5-28 times more often. However frequency of the most widespread epithelial cancers (such as breast cancer) at researched did not differ from average on the population. Researchers consider that the role of immune system in prevention of many kinds of cancers is more significant, than it was considered earlier.

Ultrasound will help immunity to struggle with a cancer

September 4th, 2007

The intensive ultrasonic radiation directed at a malignant tumor and causing its vibration can be an effective method of cancer treatment, informed press release of Durham University, Northern Carolina. At such influence immune system of the patient starts actively to destroy a tumor and its metastasizes.
Results of the work carried out by engineers and oncologists at Duke University have been published in Journal of Translational Medicine. Zhenlin Hu was at the head of the research, now he is working at the Second military-medical university in Shanghai.
High-intensity focused ultrasound, HIFU, is already used for treatment of tumors in Europe, USA and China. However till now scientists used such intensity which destroys cancer cells by warming them up.
Basic difference of the American researchers’ work in that that the focused ultrasound causes only vibration of a tumor, breaking integrity of cells’ membranes. Thus the cellular contents containing set of antigens, go in a bloodstream. The immune system distinguishes these antigens and produces a clone of corresponding antineoplastic lymphocytes, which distinguish and destroy both the basic tumor and its metastasises.
If results of the experiment will prove to be true at people, the given technique can effectively treat cancer without operative treatment. It is especially important at treatment of patients with metastasises in such important organs as brain and lungs.

Violet vegetables and fruit rescue from cancer

September 3rd, 2007

Pigments anthocyanins, responsible for blue and violet coloration of vegetables, fruit and berries, hinder development of colon cancer. That was stated by scientists from University of Ohio at an annual meeting of the American chemical society.
Researchers headed by Monika Justy have tested anticancer properties of extracts from the various products rich for anthocyanins and conducted a number of tests on rats suffering from colon cancer.
It was found out, that addition of these substances reduced symptoms of colon cancer development at rats by 60%-70 % in comparison with control group.
Results of research testify that anthocyanins’ pigments can protect from some tumors of gastrointestinal tract. However researchers are not ready yet to recommend to patients specific anticarcinogenic fruit or vegetables, said Justy.

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