Cancer will be genetic, Able to carry out prevention? A large number of medical practice found that genetic factors in the course of the occurrence of cancer is a certain function. The types of cancer hereditary more obvious? Reporters interviewed Chinese Academy of Medical Sciences Cancer Hospital-Chang Wang Jian, former vice president Professor. Professor Wang Jian-zhang, children retinoblastoma, and other four kinds of cancer can be genetic.
Children retinoblastoma. Professor Wang Jian-Zhang said, "the closest relationship with the genetic child of cancer retinoblastoma, and its symptoms are: children in the 1-2 age of the invisible eyes suddenly. Retinoblastoma, by the abnormal gene decisions, with the abnormal gene, 80 percent - 90 percent will be suffering from this type of cancer. congenital tumor This is a very obvious example.
Colon cancer. This is a multiple, familial polyposis, in the long intestine, large intestine, more particularly, for easy development of colon cancer. Professor Wang Jian-cheung said that if parents have this type of colon cancer, and their children are 50% of the same may in cancer. But environmental factors contributed to the occurrence of this type of colon cancer are very important.
Breast cancer. Family mothers or sisters have had breast cancer women, the incidence of breast cancer himself opportunities than women in general high three times. However, we can not treat the causes of breast cancer are attributed to genetic, because the causes of breast cancer are more factors, including diet containing too much fat, increased age, obesity, breast-feeding, single, and so on. If two patients within three generations of his family are suffering from breast cancer, we must consider whether they have inherited. In addition, Professor Wang Jian-Zhang said, "Bilateral breast cancer hereditary more obvious."
Gastric cancer, esophageal cancer and hereditary less obvious, and some also occurred family aggregation, some people consider this is the result of genetic factors, mainly on the chromosome and gene changes. Even if there are familial aggregation of the people if no contact with the carcinogenic substances and can not be a cancer.
According to reports, the family of cancer genetic phenomenon is caused by chromosomal aberrations. Every normal human cells have 46 chromosomes, can cause various carcinogenic factor chromosome aberrations, making the chromosome number and morphology are different from normal cells, such chromosome aberrations sometimes to their offspring, so that it is suffering from the next generation the possibility of cancer.
In addition, the possibility of people with cancer must not necessarily cancer, the cancer is a big opportunity more than just ordinary people. Cancer incidence decided to internal and external causes, cancer physique only have a certain internal and external carcinogenic if coupled with factors such as radiation, the role of smoking, cancer will occur.
Children retinoblastoma. Professor Wang Jian-Zhang said, "the closest relationship with the genetic child of cancer retinoblastoma, and its symptoms are: children in the 1-2 age of the invisible eyes suddenly. Retinoblastoma, by the abnormal gene decisions, with the abnormal gene, 80 percent - 90 percent will be suffering from this type of cancer. congenital tumor This is a very obvious example.
Colon cancer. This is a multiple, familial polyposis, in the long intestine, large intestine, more particularly, for easy development of colon cancer. Professor Wang Jian-cheung said that if parents have this type of colon cancer, and their children are 50% of the same may in cancer. But environmental factors contributed to the occurrence of this type of colon cancer are very important.
Breast cancer. Family mothers or sisters have had breast cancer women, the incidence of breast cancer himself opportunities than women in general high three times. However, we can not treat the causes of breast cancer are attributed to genetic, because the causes of breast cancer are more factors, including diet containing too much fat, increased age, obesity, breast-feeding, single, and so on. If two patients within three generations of his family are suffering from breast cancer, we must consider whether they have inherited. In addition, Professor Wang Jian-Zhang said, "Bilateral breast cancer hereditary more obvious."
Gastric cancer, esophageal cancer and hereditary less obvious, and some also occurred family aggregation, some people consider this is the result of genetic factors, mainly on the chromosome and gene changes. Even if there are familial aggregation of the people if no contact with the carcinogenic substances and can not be a cancer.
According to reports, the family of cancer genetic phenomenon is caused by chromosomal aberrations. Every normal human cells have 46 chromosomes, can cause various carcinogenic factor chromosome aberrations, making the chromosome number and morphology are different from normal cells, such chromosome aberrations sometimes to their offspring, so that it is suffering from the next generation the possibility of cancer.
In addition, the possibility of people with cancer must not necessarily cancer, the cancer is a big opportunity more than just ordinary people. Cancer incidence decided to internal and external causes, cancer physique only have a certain internal and external carcinogenic if coupled with factors such as radiation, the role of smoking, cancer will occur.
