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1.
Zhongguo Zhong Yao Za Zhi ; 44(22): 4800-4805, 2019 Nov.
Artigo em Chinês | MEDLINE | ID: mdl-31872585

RESUMO

Due to the increasing incidence of central nervous system diseases,especially the increasing incidence and mortality of stroke,brain-targeted drug delivery has attached more and more attention. Nasal administration,as one of the ways of brain-targeted administration,can effectively make the drug delivered to the brain in a targeted way after by passing the blood-brain barrier,providing a new idea for the treatment of central nervous system diseases. Therefore,it is a promising administration way. In recent years,the treatment of encephalopathy by nasal administration of traditional Chinese medicine has become a hot topic in the research of traditional Chinese medicine. Ischemic stroke is one of the most important diseases endangering human health. Nasal administration has a history of thousands of years in treatment of stroke. Modern medical research has proved that there is a subtle connection between the nasal cavity and the brain,and the complex and ingenious structure of the nasal cavity provides the possibility for drugs delivery to the brain through the nose. Drug administration through nasal cavity has obvious advantages in treatment of central nervous system diseases represented by ischemic stroke. Nasal administration is characterized by non-invasion,low infection,rapid absorption and brain targeting. The author will expound the theoretical basis of brain targeting of nasal administration from the aspects of anatomy and physiology,and summarize the transport pathway of drugs through the nose into the brain,the in vitro and in vivo experimental research basis of the " nose-brain"pathway,and the clinical nasal administration of traditional Chinese medicine to prevent cerebral ischemia. It provides a reference for better research of drugs to prevent and treat cerebral ischemia injury through the " nose-brain"pathway and lays a foundation for further research of the " nose-brain" pathway.


Assuntos
Isquemia Encefálica/tratamento farmacológico , Medicina Tradicional Chinesa , Preparações Farmacêuticas , Administração Intranasal , Encéfalo , Sistemas de Liberação de Medicamentos , Humanos , Mucosa Nasal
2.
Saudi J Biol Sci ; 25(3): 457-464, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29692648

RESUMO

Objective: To study the effects of the different components of the total flavonoids and total saponins from Mao Dongqing's active site on the rats of TIA model, determine the optimal reactive components ratio of Mao Dongqing on the rats of TIA. Methods: TIA rat model was induced by tail vein injection of tert butyl alcohol, the blank group was injected with the same amount of physiological saline, then behavioral score wasevaluated. Determination the level of glutamic acid in serum, the activity of Na+-K+-ATP enzyme, CA++-ATP enzyme and Mg++-ATP enzyme in Brain tissue, observe the changes of hippocampus in brain tissue, the comprehensive weight method was used to evaluate the efficacy of each component finally. Results: The contents of total flavonoids and total saponins in the active part of Mao Dongqing can significantly improve the pathological changes of brain tissue in rats, improve the activity of Na+-K+-ATP enzyme, Ca++-ATP enzyme and Mg++-ATP enzyme in the brain of rats, and reduce the level of glutamic acid in serum. The most significant of the contents was the ratio of 10:6. CONCLUSION: The different proportions of total flavonoids and total saponins in the active part of Mao Dongqing all has a better effect on the rats with TIA, and the ratio of 10:6 is the best active component for preventing and controlling TIA.

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