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Transgenic potatoes containing hepatitis B vaccine
American scientists have recently cultivated a genetically modified potato that can act as a hepatitis B vaccine. This result may help developing countries in the prevention and treatment of hepatitis B. Charles Arnchen, a biologist at the University of Arizona in the United States, and his colleagues have developed a solution that eliminates the need for refrigerated, edible hepatitis B vaccine potatoes. They took a gene from the hepatitis B virus and transplanted it into a potato plant to produce a virus antigen in the potato. After people eat this kind of potato, the antigen protein will trigger the body's immune response and produce hepatitis B antibody against the hepatitis B virus. In clinical trials, participants participated in the initial vaccination of hepatitis B vaccine in the past 1 to 15 years. The results showed that 19 out of 33 people had more hepatitis B antibodies after eating potatoes, and one of them had a 56-fold increase in antibody levels.
Zinc steel is used as the base material for the production of safety protection railings and guardrails in the suspended places of roofs and balconies, with a wide field of vision and prevention of falling from heights