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A kind of medicine for treating Alzheimer's disease and preparation method thereof

A technology for Alzheimer's disease and drugs, which is applied in the field of new drug delivery system of traditional Chinese medicine, can solve the problems of high toxicity and side effects, poor treatment effect, etc., achieve huge application potential, improve treatment effect, and enhance curative effect

Inactive Publication Date: 2019-12-17
CHENGDU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a drug for the treatment of Alzheimer's disease and a preparation method thereof, aiming at being safer and more effective, in view of the shortcomings of the currently clinically used drugs for the treatment of AD, such as poor therapeutic effect and large toxic and side effects. Effective multi-target intervention therapy for AD to improve the quality of life of AD patients

Method used

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  • A kind of medicine for treating Alzheimer's disease and preparation method thereof
  • A kind of medicine for treating Alzheimer's disease and preparation method thereof
  • A kind of medicine for treating Alzheimer's disease and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] The TC@PLGA / NPs nanoparticles were prepared by the ultrasonic-assisted emulsifier evaporation method in the one-step method. 5 mg of each of TanIIA and CTan and 150 mg of PLGA were dissolved in 10 ml of dichloromethane to obtain an oil phase solution, and 1 ml of the oil phase was taken as 2- Slowly drop 3 drops / s into 15ml 1.5% PVA aqueous solution, ultrasonicate the probe in ice bath for 8min (over 3s, stop for 5s), put the nanosuspension on a magnetic stirrer at room temperature at a speed of 500rmp after ultrasonication Under stirring for 2 h, the organic solvent was completely volatilized, centrifuged at 13000 rpm for 30 min, the drug-loaded nanoparticles were collected, washed with PBS, resuspended and centrifuged, repeated twice, and freeze-dried under vacuum for 5 h to obtain TC@PLGA / NPs, which were placed in 4 Store at ℃.

[0030] Take 40mg borneol crude drug, put it in a 10ml volumetric flask, dissolve it with absolute ethanol to obtain a 4mg / ml borneol ethano...

Embodiment 2

[0032] The TC@PLGA / NPs nanoparticles were prepared by the ultrasonic-assisted emulsifier evaporation method in the one-step method. 10 mg of each of TanIIA and CTan, and 200 mg of PLGA were dissolved in 10 ml of dichloromethane to obtain an oil phase solution, and 1 ml of the oil phase was taken as 2- Slowly drop 3 drops / s into 10ml 2% PVA aqueous solution, ultrasonicate the probe in ice bath for 6min (over 3s, stop for 5s), put the nanosuspension on a magnetic stirrer and stir at room temperature at a speed of 400rmp after ultrasonication 2h, the organic solvent was completely volatilized, centrifuged at 13,000rpm for 30min, the drug-loaded nanoparticles were collected, washed with PBS, resuspended and centrifuged, repeated twice, freeze-dried under vacuum for 5h to obtain TC@PLGA / NPs, which were stored at 4°C .

[0033] Take 40mg borneol crude drug, put it in a 10ml volumetric flask, dissolve it with absolute ethanol to obtain a 4mg / ml borneol ethanol solution, take 10mg of ...

Embodiment 3

[0035] The TC@PLGA / NPs nanoparticles were prepared by the ultrasonic-assisted emulsifier evaporation method in the one-step method. 10 mg of each of TanIIA and CTan, and 200 mg of PLGA were dissolved in 10 ml of dichloromethane to obtain an oil phase solution, and 1 ml of the oil phase was taken as 2- Slowly drop 3 drops / s into 10ml of 1% PVA aqueous solution, ultrasonicate the probe in ice bath for 5min (over 3s, stop for 5s), after ultrasonication, place the nanosuspension on a magnetic stirrer and stir at room temperature for 2h to make organic After the solvent was completely evaporated, the drug-loaded nanoparticles were collected by centrifugation at 13,000 rpm for 30 min, washed with PBS, resuspended, and centrifuged.

[0036] Take 40mg borneol crude drug, put it in a 10ml volumetric flask, dissolve it with absolute ethanol to obtain a 4mg / ml borneol ethanol solution, take 10mg of TC@PLGA / NPs at the same time, put it in a 10ml volumetric flask, dissolve it with distilled...

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Abstract

The invention discloses medicine for treating AD (alzheimer's diseases) and a preparation method thereof. The medicine is prepared from the following ingredients in percentage by mass: 15 percent of borneol, 4 percent of tanshinone IIA, 4 percent of cryptotanshinone and 77 percent of PLGA polymers. The invention also discloses a preparation method of the medicine for treating the alzheimer's diseases. Medicine carrying nanoparticles are combined with the borneol to be used; the BBB can be reversibly developed; the medicine concentration in the brain is improved; the AD treatment effect is improved. Fat-soluble ingredients TanIIA and CTan in radix salviae miltiorrhizae are used as model medicine for preparing polymer medicine carrying nanoparticles for treating the AD; the multi-target combined intervention treatment can be performed on the AD. Polylactic acid-glycolic acid (PLGA) is used as a nanometer material for wrapping the model medicine; the advantages of realizing the biodegradability, improving the bioavailability, enhancing the targeting performance and the like are realized; huge application potential is shown in the aspect of medicine release carriers.

Description

technical field [0001] The invention belongs to the technical field of novel drug delivery systems of traditional Chinese medicines, relates to a medicine for treating Alzheimer's disease and a preparation method thereof, and in particular relates to an effective combination of borneol combined with Salvia miltiorrhiza for treating Alzheimer's disease Co-supported polymer nanoparticles and preparation method thereof. Background technique [0002] Alzheimer's disease (AD), also known as senile dementia, is by far the most common central neurodegenerative disease. At present, nearly 30 million people in the world suffer from AD, and my country accounts for about a quarter of it. It has become one of the diseases with the highest incidence in the elderly population, seriously endangering the health of the elderly, and bringing a huge burden to society and families. The etiology of AD is complex, and the pathogenesis is still unclear. Currently, there are many kinds of drugs us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K31/045A61K31/58A61K9/51A61K47/34A61K47/32A61P25/28
CPCA61K9/5138A61K9/5153A61K31/045A61K31/58A61P25/28A61K2300/00
Inventor 邹亮章津铭王迪李维代丽萍卓虹伊
Owner CHENGDU UNIV