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Cerebral hypoxia is a form of hypoxia (reduced supply of oxygen), specifically involving the brain; when the brain is completely deprived of oxygen, it is called cerebral anoxia. There are four categories of cerebral hypoxia; they are, in order of severity: diffuse cerebral hypoxia (DCH), focal cerebral ischemia, cerebral infarction, and global cerebral ischemia. Prolonged hypoxia induces neuronal cell death via apoptosis, resulting in a hypoxic brain injury.
Functionalized exosome-traditional Chinese medicine small molecule composite preparation T-pEXOs@GB and preparation method and application thereof
The application discloses a kind of functionalization exosome-traditional Chinese medicine small molecule composite preparation T-pEXOs@GB and its preparation method and application.The composite preparation encapsulates ginkgolide B (GB) in the exosome of healthy plasma, and is functionally modified neuron target peptide RVG (DSPE-PEG-RVG) on its surface, so that it has brain targeting and oxygen supply functions.The preparation method provided by the application can efficiently and controllably prepare the composite preparation with uniform particle size and good stability.The T-pEXOs@GB composite preparation of the application can be targeted to deliver to brain ischemia and hypoxia injury area, significantly reduce oxidative stress and inflammatory response, reduce cerebral infarction volume, improve neurological deficit score, and improve the survival rate of animal model, and can be used to prepare drugs for preventing and treating acute high altitude cerebral hypoxia, ischemic stroke, neonatal hypoxic-ischemic encephalopathy and other cerebral ischemia and hypoxia injury, and has good market prospect.
Owner:NANJING HOSPITAL OF TCM