A few days ago, the results of the "Project on the Prevention and Control of Major Pests, Diseases, and Insect Pests Development and Application in Southern China's Rice Region" conducted by the University of Guizhou passed the expert appraisal organized by the Science and Technology Department of Guizhou Province. The cumulative application of this project has reached 650 million mu, creating economic benefits of 35.362 billion yuan.
According to reports, since 2000, the research team led by Professor Song Baoan of Guizhou University has tackled the major problem of preventing and controlling pests and diseases such as rice planthoppers and virus diseases and vector insects that seriously endanger China's rice production, and has joined the National Agricultural Technology Extension Service Center. , Jiangsu Anbang Electrochemical Corporation, Guangxi Rural Biochemical Corporation, Nankai University and other units jointly implemented and completed the “Project on the Prevention and Control of Major Plant Diseases and Insect Pesticide Development and Application in Southern Chinaâ€. The expert appraisal believes that the project results are generally at the international advanced level, in which the theory and technology related to the creation of rice virus disease resistance, rice virus disease and its vector insect system, and the full range of immune prevention and control technologies to control rice pests and diseases (virus diseases and media locusts) Internationally advanced level.
The project created a new pesticide variety with independent intellectual property rights, fluorine and phosphorus, established a 200 ton/year poisonous fluorine and phosphorus raw drug production device, and innovated the new synthetic technology of pymetrozine and methyl-dimensional salt, and built an annual output of pymetrozine. 1,000 tons of original medicine and 3,000 tons of preparation equipment. Through technological innovation, we have developed 10 new formulations of environmentally friendly pesticides such as 1% pymetrozine sustained-release granules. The research results of the project have been granted 25 national invention patents, and the technical standards such as the “Technical Regulations for the Prevention and Treatment of Rice Black Stripe Dwarf Disease†have been adopted by the Ministry of Agriculture as technical specifications for the prevention and control of major rice pests and diseases. Scientists and technicians have developed a series of field application technologies for innovative pharmaceuticals and environmentally friendly pharmaceuticals through the development of a coordinated system of green prevention and control technologies, such as the prevention and treatment of southern rice black-streaked dwarf virus disease and pyridoxone against rice planthoppers. The researchers innovatively proposed a new strategy for prevention and control of rice virus disease through “immunization activation, pest control and disease prevention, and full prevention and control.†With fluorophosphate and pymetrozine as the core, the integrated planthopper and virus diseases and vector insects were integrated. The technical system of prevention and control and the application of technology for the prevention and control of pharmaceuticals have trained 100,000 agricultural technicians and farmers at the grass-roots level and conducted large-scale prevention and control demonstrations and popularization and application in southern China's rice fields, resulting in significant economic, social and ecological benefits.
Dexamethasone injection belongs to adrenocortical hormone drugs, which has the effects of anti-inflammatory, anti allergic and anti shock. Clinically, it is mainly used for allergic and autoimmune diseases. Such as rheumatoid arthritis, bronchial asthma, dermatitis and other allergic diseases. It is mainly used for allergic and autoimmune inflammatory diseases, such as connective tissue disease, rheumatoid arthritis, severe bronchial asthma, dermatitis and other allergic diseases, ulcerative colitis, acute leukemia, malignant lymphoma and so on.
pharmacological action
Dexamethasone, also known as dexamethasone, methylprednisolone and desamethasone, is a glucocorticoid hormone. Its derivatives include hydrocortisone and prednisone. Its pharmacological effects are mainly anti-inflammatory, anti-toxic, anti allergic and anti rheumatism. It is widely used in clinic. It is easily absorbed from the digestive tract. Its plasma T1 / 2 is 190 minutes and tissue T1 / 2 is 3 days. After intramuscular injection of dexamethasone sodium phosphate or dexamethasone acetate, the blood concentration peak is reached at 1 hour and 8 hours respectively. The plasma protein binding rate of this product is lower than that of other corticosteroids. The anti-inflammatory activity of 0.75mg is equivalent to 5mg prednisolone. Adrenocorticosteroid drugs * are more effective than prednisone in anti inflammation, anti allergy and antivenom. The effects of water and sodium retention and promoting potassium excretion are very mild, but intramuscular injection or intravenous drip can inhibit pituitary adrenal gland.
1. Anti inflammatory effect: it can reduce and prevent the reaction of tissue to inflammation, so as to reduce the performance of inflammation. Hormones inhibit the aggregation of inflammatory cells, including macrophages and leukocytes, phagocytosis, the release of lysosomal enzymes and the synthesis and release of inflammatory chemical mediators.
2. Immunosuppressive effect: it includes preventing or inhibiting cell-mediated immune response, delayed allergic reaction, reducing the number of T lymphocytes, monocytes and eosinophils, reducing the binding ability between immunoglobulin and cell surface receptors, and inhibiting the synthesis and release of interleukin, so as to reduce the transformation of T lymphocytes into lymphoblasts, And reduce the expansion of primary immune response. It can reduce the passage of immune complex through basement membrane and reduce the concentration of complement and immunoglobulin.
The product is easily absorbed from the digestive tract. The plasma T1 / 2 is 190 minutes and the tissue T1 / 2 is 3 days. After intramuscular injection of dexamethasone sodium phosphate or dexamethasone acetate, the blood concentration reaches the peak at 1 hour and 8 hours respectively. The plasma protein binding rate of this product is lower than that of other corticosteroids. The anti-inflammatory activity of 0.75mg of this product is equivalent to 5mg prednisolone.
Injection 10% Dexamethasone,Pharmaceutical Dexamethasone Injection,100ml Dexamethasone Injection,30% Injectable Dexamethasone
Shandong Unovet Pharmaceutical Co.,Ltd. , https://www.unovetcn.com