Vitamin A can prevent tumour

Vitamin A can prevent tumour
With the improvement of the human scientific and technological level, the medical means is in constant development and progress too, among them most research to tumour are to concentrate and find malignant cells and destroy them in early days, or prevent the carcinogenic factor in the environment from keeping in touch with the organization apt to infect, but few people attempt after cells keep in touch with the carcinogenic factor, tried to reverse and how cells are changed into malignant stage. Maugh2 has been reported to the state-run hygiene research institute (NIH) of U.S.A. ,With the state-run cancer research institute (NCI) In order to mainly establish a research group, the relation of specializing in vitamin A and tumour takes place, they think one of the effective reversion factors is vitamin A and derivative.
General emergence and grow up in three stages of tumour, namely begin, tumour take shape earlier stage. Tumour issue change, need 20 years in people generally to take shape from begin issue earlier stage, how about to change the cells with previous tumour, it is few that people understand, but one point is clear, namely the cells of period of cell with previous tumour will be mended, and return to normal by oneself. The main function of vitamin A is that a few cells making the gene already change take a turn for the worse.
One of the functions of vitamin A is to make upper skin cells divide into the particular tissue. Because tumour emergence with upper leather cell of cell split up lose of ability have something to do. So vitamin A has played an important role in preventing the occurrence of tumour. A lot of scientists in the above-mentioned group find in the animal that lacks vitamin A for a long time, the carcinogenic factor can especially bring about tumour in these animals.
The trachea that separated of field mouse that Sporn and Kaufman of NCI found vitamin A scarce, in training the liquid than the normal healthy field mouse's trachea, its DNA and combination of different carcinogenic factors are closer. The tumour incidence which lacks the vitamin A animal is higher than the incidence not scarce. Massachusetts Institute of Technology (MIT) Newberne and it is old for mouse since Rogers be lasted vitamin A to be found,because after keeping in touch as factor aflatoxin B1s carcinogenic, the incidence of large intestine cancer rises more notably than contrast. Though these results are still preliminary, it is very important.
In addition, supplementing vitamin A or its derivative can prevent tumour. For example Kaufman find in the intersection of field mouse and the intersection of cultivation and liquid of trachea, add acetic acid, depend on yellow ester can inhibit carcinogenic factor and combination of DNA, Chopro finds retinol and derivatives are added to little mouse's prostate and trained in the liquid, can inhibit the function of the carcinogenic factor, and make carcinogenic function reverse.
Some study even prove vitamin A and its derivative treat function. Swarm find big mouse move the intersection of bone and soft flesh and blood, after the tumour, supplement vitamin A derivative (1, 3 obey type - retinol) Can inhibit sarcoma from growing. Bollag find retinol can make little mouse dwindle because of the intersection of papilla and volume of tumour that carcinogenic factor bring out. Bollag find, look at yellow sour analog still can make scale of human body cell and basal cell cancer disappear also.
Regarding vitamin A inhibits the mechanism of growth of tumour from understanding and few. Someone thinks it may inhibit activating enzyme of the carcinogenic factor in the body. But Metzler thinks vitamin A compound can stimulate the immune system of face-off tumour. He finds the acid of palms looks at yellow ester than the Bacillus Calmette-Guerin (BGG) that another pair of tumours has immunoreaction Can produce strong 100 times of antitumor function. So, some scientists think the prevention and cure to tumour of vitamin A is applied, perhaps prevent and cure one of the most important discoveries in the tumour question. But taking heavy dose of vitamin A will produce toxicity and react. So they propose the present important subject is how to be formated and screened as new vitamin A derivative on toxic function, to prevent and treat tumour. Before this problem is unresolved, should not propagate and treat tumour excessively with vitamin A, in case that heavy dose of administration causes vitamin A too much or is poisoned.
The editor recommends:Vitamin A is taken in too much and will be poisoned
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