A new study by the Max Delbrück Molecular Medicine Center in Germany on the 14th showed that the active substance EGCG (epigallocatechin gallate) in green tea can relieve abnormal depositional bands associated with diseases such as Alzheimer's disease. To the toxicity.
The researchers said that amyloid beta protein is caused by the misfolding of proteins, and its abnormal deposition is lethal to nerve cells, which can lead to cell death. Abnormal deposition of beta amyloid is an important cause of diseases such as Alzheimer's disease and Parkinson's disease.
Researchers at the Max Delbrück Molecular Medicine Center found in test tubes and cell culture experiments that implantation of this toxic protein deposit results in a decrease in the level of metabolism of nerve cells and an unstable membrane. Once the green tea active substance EGCG is involved, the damage of these cells will disappear. The mechanism of EGCG detoxification is that it first binds to fibrillar amyloid β and converts the latter into globular protein aggregates that are not harmful to nerve cells and are then degraded by cells.
EGCG can not only detoxify but also prevent poison. A previous study by the Max Delbrück Molecular Medicine Center has found that EGCG has a preventive effect: it can bind to proteins that have not yet been folded, prevent their misfolding, and prevent Alzheimer's disease and Parkinson's disease. The formation of toxic protein deposits associated with Huntington's disease.
This result was published in the latest issue of the "Journal of the National Academy of Sciences." (Reporter Zhou Gufeng)
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