Efficacy and role of Huang Jing Extract: 1. Anti-pathogenic microorganisms: Huang Jing has an inhibitory effect on typhoid bacillus, Staphylococcus aureus and acid-fast bacilli, 2% Huang Jing has a different degree of inhibition on common pathogenic fungi in the Salmon medium. 2. The effect on blood sugar: Huangjing Extract has a significant inhibitory effect on adrenaline-induced hyperglycemia. 3. Anti-fatigue effect: Huangjing Decoction 17.67% concentration 0.3 ml / intraperitoneal injection can prolong the swimming time of mice. 4. Antioxidant effect: 20% concentration of Huangjing decoction, 13 ml / feed only, for 27 consecutive days, so that the activity of superoxide dismutase (SOD) in the liver of mice increases, and the Specification of myocardial lipofuscin decreases. 5. Anti-aging effect: Huangjing decoction, soaked mulberry leaves at 20% concentration to feed silkworms, can prolong the larval period of silkworms. 6. Hemostasis. 8. Antiviral effect: Huang Jing polysaccharide 0.2% eye drops, 6 times / day, or add Huang Jing polysaccharide 10 mg / kg, 2 times / day, have a therapeutic effect on rabbit experimental herpes simplex Chemicalbook viral keratitis . 9. Blood lipid-lowering effect: The Extracts of Huang Jing petroleum ether, ethanol and water have different degrees of decreasing effects on the serum TC and TG of male SD rats compared with the control group, and the effects of ethanol and water Extracts on reducing serum TC and TG obvious. 10. Immunoenhancing effect: Extract of Huang Jing can increase the rate of lymphocyte transformation and E-rose wreath formation in some patients with immunodeficiency. Kangbao Oral Liquid, which mainly uses Huang Jing, can also promote DNA synthesis and T The proliferation rate of lymphocytes can improve the immune function of lymphocytes, and can obviously enhance the phagocytic capacity of macrophages. 11. Effect on cardiovascular system: Intravenous injection of yellow semen can increase coronary flow, but has no significant effect on heart rate, arterial pressure, and myocardial utilization rate; Intravenous injection of rabbit can resist acute myocardium caused by pituitary Ischemia; Perfusion of isolated rabbit hearts can enhance coronary flow; Intraperitoneal injection of mice can enhance their resistance to hypoxia. Huang Jing can increase the nutrient blood flow of myocardium in mice, and it has a cardiotonic effect on normal and exhausted toad heart. Injecting the Extract of Huang Jing wine into the abdominal cavity of mice can promote the incorporation of thymidine into myocardial DNA.