Use of auroside in the preparation of medicines for improving cognitive dysfunction
A technology of cognitive dysfunction and auroglucoside, which is applied in drug delivery, drug combination, and pharmaceutical formula, and can solve problems such as unsatisfactory prognosis, reduced quality of life of patients, and loss of self-care ability of patients.
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Embodiment 1
[0033] Example 1 Experiment of improving learning and cognitive ability of dementia model mice with auroside
[0034] Scopolamine is used to prepare a dementia model, which is a very commonly used model for drug-prepared animal models of Alzheimer's disease. As of November 2, 2019, in the PUBMED database, there are 1,620 articles using this method to prepare dementia models; for example, the SCI journal paper "A novel chalcone derivative as Nrf2 activator attenuates learning and memory impairment in a scopolamine-induced mousemodel". The model targets cholinergic neurons, which can simulate the symptoms of decreased learning and memory ability caused by the decrease in the activity of cholinergic neurons in Alzheimer's disease, effectively causing cognitive decline in animals, thereby simulating the symptoms of Alzheimer's disease patients. Cognitive impairment status.
[0035] Grouping and administration: 3-month-old C57 mice were randomly divided into blank group, model g...
Embodiment 2
[0044] Example 2 Auroside improves the learning and memory ability of severe depression model mice
[0045]The severe depression model was prepared by Chronic Unpredictable Mild Stress (CUMS). This method is the most commonly used method for preparing severe depression models in this field. As of November 2, 2019, at least 539 papers have been retrieved in the PUBMED database to prepare severe depression models; for details, see the SCI paper "The enriched environment Ameliorates chronic unpredictable mildstress-induced depressive-like behaviors and cognitive impairment by activating the SIRT1 / miR-134 signaling pathway in hippocampus". The severe depression model prepared by the method has the characteristics of good stability and high repeatability, and can successfully and stably cause animals to be in a severe depression state, and the cognitive function is obviously decreased.
[0046] Grouping and administration: 3-month-old C57 mice were randomly divided into blank gr...
Embodiment 3
[0054] Example 3-Auroside improves cognitive impairment caused by ischemia-reperfusion
[0055] The ischemia-reperfusion model was prepared by the middle cerebral artery occlusion method, which is a commonly used model in this field and widely used. For example, at least 129 research papers were retrieved in the PUBMED database using this method to prepare ischemia-reperfusion-induced cognition damage model. This model specifically causes local brain tissue ischemia, resulting in unilateral damage to the hippocampus and striatum and other brain regions, resulting in reduced learning and memory abilities of animals, and a significant decline in cognitive function.
[0056] Grouping and administration: 6-month-old C57 mice were randomly divided into blank group, model group, auroside 1 group (20mg / kg) and auroside 2 group (50mg / kg), 15 only. The blank group and the model group were given intragastric administration of normal saline every day, 200ul / piece; the auroside 1 grou...
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