Saturday, January 3, 2015

The cause of most cancer: biological bad luck – Senior.pl

03-01-2015

Change text size A + A

Researchers have found that two thirds of different types of cancer develops as a result of random mutations, not hereditary factors, or those related to lifestyle. It thus appears that in many situations it is simply a biological bad luck …

Scientists at Johns Hopkins University School of Medicine in Baltimore wrote that random DNA mutations accumulate in various parts of the body during normal cell division are the main culprits many types of cancer.

Some forms of cancer arise mainly as a result of irregular, chaotic mutation of DNA, on the other stronger influenced by hereditary factors and lifestyle.

The researchers analyzed 31 types of cancer, and found that the development of 22 them, including leukemia, bone, testes, and brain, can be largely explained by random mutations, and thus “biological bad luck.”

As for the nine other types of cancer, for their appearance primarily affect aspects of genetically inherited and such things as diet, level, quantity and quality of, etc. There are m. al .:, skin cancer known as basal cell carcinoma and cancer-related.

Overall, about 65 percent of cancers attributed to random mutation in the genes. – When people hear that fell ill with cancer, they want to know why. Usually people think that there is a reason. However, in many cases the disease develops, not because someone ran an unhealthy lifestyle or been exposed to the negative impact of the environment, but on the grounds that he had no luck. It’s like losing the lottery – Bert Vogelstein explained Dr Johns Hopkins University School of Medicine.

The tests consisted of monitoring the cumulative number of divisions in the stem cells of the tissue (eg. Lung or colon) and compared it with the risk cancer development in a given tissue. The higher the number of divisions, including the random, the greater was the likelihood of cancer.

The results should not discourage healthy “carry out” the researchers say. You just have to be aware that in the case of some cancers lifestyle factors may be relevant, while others may not, explain the experts.

The study is published in the journal Science.

LikeTweet

No comments:

Post a Comment