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1, which may lead to kidney abnormality. The British newspaper The Independent disclosed a secret report of Monsanto, a genetically modified food giant.
2. The report shows that feeding transgenic corn to mice will lead to blood changes and kidney abnormalities.
3. Because the most common genetically modified food in China is mainly genetically modified soybean oil, consumers are worried about the safety of genetically modified soybean oil.
But it is not clear whether it is harmful to human body.
5, 2, plant internal recombination harms transgenic plants. Two genes were artificially recombined. In order to ensure their normal growth, the addition of specific genes and the potential new threats brought by recombination make the internal changes of genetically modified foods great. Just like genetically modified plants are sterilized for this reason, its threat is enormous and the most unpredictable.
6, 3, may have an allergic reaction to the human body. Nearly 2% of adults and 4%-6% of children in the world have had food allergies, and 90% of allergies are caused by eight foods: eggs, fish, shells, milk, peanuts, soybeans, nuts and wheat.
7. Transgenic soybeans may be more susceptible to allergic reactions due to the introduction of foreign genes.
8. Facts in some countries in the world have also confirmed that genetically modified soybeans are allergic to some extent.
9.4. The introduction of foreign genes into genetically modified soybeans may affect human resistance to antibiotics. If these antibiotic marker genes enter the human body, they may be transferred to harmful pathogenic bacteria, thus making them resistant to antibiotics, reducing the clinical efficacy of antibiotics, and may also make the human body resistant to many antibiotics.
10, 5. In genetically modified foods that may cause poisoning, due to the artificial destruction and addition of genes, genetically modified foods have achieved some expected effects, but also increased trace toxins in food.
1 1, 6, the foreign gene with reduced nutritional value will definitely destroy the nutritional components in food in a special way and reduce its nutritional value.
12, 7, environmental impact Most genetically modified foods contain bacterial genes extracted from Bacillus, which will produce a kind of protein that is toxic to insects and pests, and change the living environment of other animals and plants in nature, which is considered to destroy the natural balance and naturally have a great impact on the whole self-awareness environment.
13, extended information:
Safety and Toxicity of Genetically Modified Foods Many food organisms themselves can produce a large number of toxic substances and nutritional factors, such as protein inhibitors, thrombolytic agents, neurotoxins and so on. Resist the invasion of pathogenic bacteria and pests.
14. The content of existing food toxins may not necessarily produce toxic effects. Of course, if not handled properly, some foods (such as cassava) will cause serious physiological problems and even death.
15. In the process of genetically modified food processing, the toxin protein is over-expressed due to gene introduction, resulting in various toxicity. Theoretically, any gene transfer method may lead to unpredictable changes in genetically modified organisms, including multi-directional effects.
16, food allergy food allergy is a worldwide public health problem.
It is estimated that nearly 2% of adults and 4.6% of children suffer from food allergies.
18. Transgenic crops usually insert specific gene fragments to express specific protein. If the expressed protein are known allergens, they may cause adverse reactions in human body. Even if the expressed protein is an unknown allergen, it is necessary to evaluate it as long as it is expressed in the edible part of transgenic crops.
19、? Another safety problem of antibiotic-resistant genetically modified foods for human health is antibiotic marker genes.
20. Antibiotic marker genes are transferred to target crops together with the inserted target genes to help screen and identify transformed cells, tissues and regenerated plants in plant genetic transformation.
The 2 1. marker gene itself has no safety problem. A controversial issue is the possibility of horizontal gene transfer.
22, such as whether the antibiotic marker gene will be horizontally transferred to the intestine and used by intestinal microorganisms, thus producing antibiotic resistance, thus reducing the effectiveness of antibiotics in clinical treatment.
23, the decline in nutritional value or cause nutritional disorders in the body, artificially changed whether the food composed of protein can be effectively absorbed and utilized by the human body.
24. Some people think that the key factors leading to the safety problem of genetically modified food are the introduction site of foreign genes and the expression of foreign proteins.
25. Because of the different sources, introduction sites and randomness of foreign genes, gene deletion, code error and other mutations are likely to occur, which makes the characteristics, quantity and position of the expressed protein products inconsistent with the expected values.
26. References:
Baidu Encyclopedia-Genetically Modified Foods Baidu Encyclopedia-Genetically Modified Soybeans.