Study on mechanism of hydroxy-a-sanshool on diabetic cardiomyopathy based on proteomics / 中国药理学通报

Aim To explore the mechanism of hydroxy-a-sanshool in the treatment of diabetic cardiomyopathy ( DCM) based on label-free quantitative proteomics detection technique. Methods DCM model was established by high fat diet and intraperitoneal injection of streptozotocin ( STZ) . They were divided into control group ( CON group ) , diabetic cardiomyopathy group (DCM group) and hydroxy-a-sanshool treatment group ( DCM + SAN group) . The cardiac function of mice was evaluated by echocardiography, the myocardial morphology was observed by pathology staining, the protective mechanism of hydroxy-a-sanshool on diabetic cardiomyopathy was speculated by proteomic technique , and the expression level of cAMP/PKA signaling pathway and key proteins were verified by Western blotting. Results Cardiac ultrasound and pathology staining showed that hydroxy-a-sanshool had protective effect on the heart of DCM mice. Label-free quantitative proteomic analysis was carried out between DCM + SAN group and DCM group, and 160 differential pro-teins were identified by proteomics, in which 127 proteins were up-regulated and 33 proteins were down regulated ; GO secondary functional annotations showed the biological process, molecular function and cellular component; KEGG enrichment analysis showed that cAMP signaling pathway was the most abundant; protein interaction network showed that PKA as the central node interacted with many proteins in the cAMP signaling pathway. Western blot showed that the relative expression of с AMP, PKA protein in DCM group was significantly lower than that in CON group ( P < 0. 05 ) , while the relative expression of cAMP, PKA protein in DCM + SAN group was significantly higher than that in DCM group ( P < 0. 05 ) . Conclusions Hydroxy-a-sanshool has protective effect on heart function of mice with diabetes, which plays a role through cAMP signaling pathway.

Textual research on origin of Zanthoxylum armatum and consideration of its definition / 中草药

As a characteristic medical and edible products, Zanthoxylum armatum has come into being popular in the past 20 years, but it has not been recorded in the relevant standards of Z. bungeanum commodities, and there is no clear regulation for the definition of Z. armatum. This paper makes a textual research on the sources of Z. bungeanum commodities, and analyzes the differences and connections between Z. armatum and other Z. bungeanum commodities, and puts forward the new definition of Z. armatum. The definition of Z. armatum will help to stabilize the quality of Z. armatum, provide reference for the quality standard and quality evaluation of Z. armatum, and provide a reference for solving the mixed situation of Z. schinifolium in Z. bungeanum commodities.

Quality standard for Compound Tougucao Solution / 中成药

AIM To establish the quality standard for Compound Tougucao Solution [Impatiens balsamina L.Zanthoxylum bungeanum Maxim.,Gleditsia sinensis Lam and Momordica cochinchinensis (Lour.) Spreng.].METHODS The fingerprints of ten batches of samples were established,after which TLC was used for the qualitative identification of I.balsamina and Z.bungeanum,HPLC was adopted in the content determination of quercetin.RESULTS There were twenty-seven common peaks in the fingerprints with the similarities of 0.978-0.986,four of which were sodium benzoate,rutin,hyperoside and quercetin,respectively.The clear TLC spots were free from negative interference.Quercetin showed a good linear relationship within the range of 1.68-107.6 μg/mL (R2 =0.999 9),whose average recovery was 104.3％ with the RSD of 2.2％.CONCLUSION This stable and reproducible method can be used for the quality control of Compound Tougucao Solution.