ABSTRACT
Exosomes are lipid bilayer membranous vesicles actively secreted by various cells in the organism， which are like nanoparticles and have messenger targeting. Combining with the theory of supramolecular "Qi chromatography" of traditional Chinese medicine （TCM）， research ideas and strategies of modernization of TCM can be constructed. Exosomes are secreted by cells， and the membrane contains nucleic acids， proteins， lipids and small molecular metabolites and others， which can accurately coordinate the functions of each cell， concentrate and transmit the functional information of the parent cell， and is the concise form of reflecting cell functions. At the same time， it is loaded with the "imprinted templates" of the supramolecular "Qi chromatography" theory of TCM. If the "imprinted templates" carrying rules among the gene-protein-lipid-small molecules wrapped in it is studied， the modern experimental research ideas and strategies of TCM theory can be established for revealing the functions of the body's meridians and viscera. Firstly， the present situation of exosomes， including discovery， secretion， characteristics， functions， attribution， uptake， research methods and application status， were reviewed in this paper. And the natural properties of its precise messenger targeted delivery vehicle were elaborated， reflecting the operation law of microscopic substances in meridians and viscera. Secondly， to explore it as an important carrier of the concentrated "imprinted templates" of the supramolecular "Qi chromatography" theory of TCM， and integrating the research methods of exosomes and supramolecular chemistry of TCM， this paper proposes experimental research ideas and strategies on the microscopic material basis of meridians and viscera， compatibility of TCM compound， and targeting of TCM targeted preparations.
ABSTRACT
Hyaluronic acid is widely present in the human body. It is an important component of extracellular matrix. It has unique hydrodynamic properties, good viscoelasticity and strain properties. At present, hyaluronic acid has been widely used in biomaterials, targeted-drug preparations, cosmetics and prevention of adhesion after abdominal surgery. With the expansion of the application scope of hyaluronic acid and the continuous emergence of new medical materials, the research on hyaluronic acid has been increasing in recent years. This paper reviews the clinical application of hyaluronic acid and its mechanism, in order to provide reference for the further development and safe application of hyaluronic acid products.
ABSTRACT
Targeting drug system (TDS) or targeted drug delivery system (TDDS) is a new kind of drug delivery system which could make drug to be directly concentrated on the target site with high curative effects and low side-effects. As the quintessence of Chinese culture, traditional Chinese medicine (TCM) has a large advantage in many disease clinical treatments, especially in cancer, hypertension and many other intractable diseases owing to their low toxicity and side-effects relative to western medicine. This article reviews literatures on development of TCM-targeted preparations which were published in the past 10 years. TDS including active-targeting, passive-targeting and physical-chemical-targeting preparations were introduced through domestic and overseas literatures to reveal the unique advantages of TCM-targeting preparations in drug delivery system. In this article, we have reviewed some kinds of TCM-targeting preparations and indicated that great attention should be paid to the research on the TCM-targeting preparations.
