What is the function of cystatin buccal tablets?

Glutathione Glutathione (GSH) is a tripeptide compound formed by the condensation of glutamic acid, cysteine and glycine through peptide bonds, and it is a kind of active short peptide with a wide range of uses. The molecular weight of GSH is 307.33, the melting point is189 ∽193 C, and the crystal is colorless, transparent and slender, with an isoelectric point of 5.93. GSH is widely distributed in animals and plants, and its content is extremely high in baker's yeast, wheat germ and animal liver, reaching100 ∽1000 mg/100g, 26∽34mg/ 100g in human blood and 50 ∽ 00g in chicken blood. Pig blood contains10 ∽15mg/100g, and it is also high in tomatoes, pineapples and cucumbers (12∽33mg/ 100g), but in sweet potatoes and mung beans. The structure of GSH contains an active sulfhydryl group-SH, which is easy to be oxidized and deoxygenated. This special structure makes GSH the main free radical scavenger in the body. Many free radicals produced by metabolism in the body will destroy the cell membrane, invade life macromolecules, promote the aging of the body and induce tumors or atherosclerosis. GSH can scavenge free radicals and play a strong protective role. For example, when a small amount of H2O2 is produced in cells, GSH reduces H2O2 to H2O under the action of glutathione peroxidase, and the latter itself is oxidized to GSSG, which is reduced to GSH under the catalysis of glutathione reductase existing in liver and red blood cells, so that the free radical scavenging reaction in the body can continue. Glutathione is a very special amino acid derivative and a tripeptide containing sulfhydryl groups, so it plays an important role in organisms. Reduced glutathione has protective effect on leukopenia caused by radiation, radiopharmaceuticals or antineoplastic drugs. GSH can combine with toxic compounds, heavy metal ions or carcinogens entering the body to promote its excretion, thus playing a role in neutralization and detoxification. SH can also protect cell membrane from oxidative damage, prevent erythrocyte hemolysis, promote the reduction of methemoglobin, and relieve discomfort caused by hypoxia, nausea and liver disease. The latest research also shows that GSH can correct the imbalance between acetylcholine and cholinesterase, play an antiallergic role, prevent skin aging and pigmentation, reduce the formation of melanin, improve skin antioxidant capacity and make skin shiny. In addition, GSH also plays a good role in treating corneal diseases and improving sexual function. Glutathione has a broad-spectrum detoxification function, which can be used not only in drugs, but also as the base material of functional foods, and is widely used in functional foods such as delaying aging, enhancing immunity and resisting tumors. With the in-depth study of peptide substances, the magical functions of peptide substances are constantly being discovered, which plays an increasingly important role in human health.