1.Research Progress of Galectin in Mchanism of Venous Trombosis
Journal of Kunming Medical University 2016;37(7):126-130
Galectins are a family of carbohydrate-binding proteins that have a high affinity to galactosides on cell surfaces and extra cellular glycoproteins.They are involved in a variety of biological functions,including modulation of cell apoptosis,cell activation and inflammation.Our laboratory has recently identified galectin-3 binding protein (Gal-3BP) as being up-regulated in a microparticle proteomics analysis for deep venous thrombosis (DVT) patients compared to negative controls.P-selectin,another glycoprotein involved in thrombus propagation,has been proved as a promising target for DVT management and has been widely studied by our group.Galectins are involved in P-selectin expression and can potentially be implicated in the venous thrombogenesis process.Interleukin-6,as an important cytokine of body,which have been found in the study of inflammation for venous thromboembolism,may be an important factor for the frmation of VT.Research shows gal3bp:gal3 plays a critical role in VT,likely via IL-6 Promote thrombosis.The function of galectins,their role in inflammation and thrombosis as well as their potential implications as a new pharmacological target for DVT management are reviewed in this manuscript.
2.3Q verification of automatic blood coagulation analyzer under good laboratory practice system
Qian ZHANG ; Wei ZHANG ; Xiaoli LV ; Xiaodong CAO ; Fuhou CHANG ;
International Journal of Laboratory Medicine 2016;37(23):3241-3242,3245
Objective To explore the procedures of 3Q validation for blood coagulation analyzer under the good laboratory prac‐tice(GLP) system based on the Sysmex CA7000 automatic blood coagulation analyzer .Methods Four test indicators of PT ,APTT , TT and FIB were chosen to conduct the performance verification in the within‐run precision ,between‐day precision ,accuracy ,linear‐ity ,carry‐over contamination rate of the automatic blood coagulation analyzer .They were prothrombin time(PT) ,activated partial thromboplastin time(APTT) ,thrombin time(TT) ,and fibrinogen(FIB) .Results The within‐run precision CV values of PT , APTT ,TT and FIB were 1 .33% ,1 .57% ,1 .47% and 1 .90% ,respectively ;the inter‐day precision CV values of PT ,APTT ,TT and FIB were 1 .73% ,1 .52% ,1 .55% and 2 .14% respectively ;in terms of accuracy ,the normal quality control CV values were 7 .45% ,3 .88% ,-4 .98% and 4 .36% respectively ;the abnormal quality control CV values of PT and APTT were 8 .11% and 8 .77% respectively ;the r value of FIB linear correlation coefficient was 0 .999 3 ,the a value was 1 .02 ;the highest CV value of car‐ry‐over contamination rate was 2 .15% ;the detected results all conformed to the general industry standards and requirements of in‐strument manufacturer .Conclusion The 3Q validation under the GLP system proves that the Sysmex CA7000 automatic blood co‐agulation analyzer is good in performance and is appropriate for the laboratory work of clinical laboratory department .
3.Research on the relationship between lung cancer with CYP1A1,CYP1B1,VEGF,CAIX genes
Feng GAO ; Lixia CHEN ; Fuhou CHANG ; Tuya BAI ; Jianxin ZHANG ; Xiaomin SHENG
Chinese Journal of Biochemical Pharmaceutics 2014;(2):151-152,156
Cytochrome P 4501 A 1, Cytochrome P 4501 B 1,Vascular endothelial growth factorand carbonic anhydrase Ⅸ belong to the downstream genes of aryl hydrocarbon receptor (AhR)and hypoxia inducible factor 1(HIF-1)signaling pathways. The abnormal expression of those genes were regarded to associated with the occurrence,development and angiogenesis of lung cancer. In this paper, the relationship between CYP1 A 1,CYP1 B 1,VEGF,CAⅨgenes and lung cancer was summarized, which aims to provide new ideas for lung cancer research.
4.Role of the AhR ligand in the development of tumor
Jianxin ZHANG ; Liping XU ; Fuhou CHANG ; Tuya BAI ; Xiaoli LV ; Feng GAO
Chinese Journal of Biochemical Pharmaceutics 2014;(1):150-152
Aryl hydrocarbon receptor (AhR) is a ligand-dependent activation of transcription factor, which is activated by a large variety of ligands, resulting in the expression of metabolic enzymes and a series of downstream gene activation, and closely related with tumor development . Now a review for AhR ligands with different structural and functional and its relationship with tumor, in order to provide a new target for tumor therapy.
5.Qualitative and quantitative analysis of chemical compounds in 3 species of wild Veratrum from Inner Mongolia
Wenjie HAN ; Ping ZHANG ; Fuhou CHANG ; Yuna LIANG ; Hongmei ZHAO ; Baoquan BAO
China Pharmacy 2022;33(8):937-949
OBJECTIVE To conduc t qualitative and quantitative analysis for the chemical compounds in 3 species of wild Veratrum(V. nigrum ,V. maackii ,V. dahuricum )from Inner Mongolia. METHODS HPLC-Q-Exactive-MS/MS technology was used to identify the chemical components of V. nigrum ,V. maackii and V. dahuricum by consulting SciFinder ,ChemSpider database and related literatures and comparing with the reference substance. The contents of polydatin ,oxyresveratrol and resveratrol in 3 species of wild Veratrum were determined by HPLC. RESULTS A total of 31 compounds were identified ,including 13 stilbenes, 11 flavonoids,4 organic acids ,2 glycosides,1 brasilin. Most of the compounds were shared by 2 or 3 species of wild Veratrum, only 2 flavonoids kaempferol and luteolin were owned by V. dahuricum . The total contents of polydatin ,oxyresveratrol and resveratrol in 3 species of wild Veratrum were in the range of 6.618-11.292 mg/g,and the total contents of them in V. nigrum were the highest ,followed by V. maackii and V. dahuricum . The contents of polydatin and resveratrol in V. maackii were the highest ,and the content of oxyresveratrol in V. nigrum was highest. CONCLUSIONS Most of the components of 3 species of wild Veratrum are similar,only kaempferol and luteolin are unique to V. dahuricum . The contents of polydatin ,oxyresveratrol and resveratrol are significantly different among 3 species of wild Veratrum.
6.Exploring the Molecular Mechanism of Aconiti Kusnezoffii Radix Ameliorates Diabetes Mellitus Type 2 Based on Systems Pharmacology
Tingting LIU ; Yue WU ; Qi CHEN ; Fuhou CHANG ; Mengdi ZHANG
Chinese Journal of Modern Applied Pharmacy 2024;41(5):606-618
OBJECTIVE
To explore the potential of Aconiti Kusnezoffii Radix in affecting diabetes mellitus type 2(T2DM) and the potential mechanism for T2DM related symptoms based on systematic pharmacology, bioinformatics, molecular docking and in vitro and in vivo experiments.
METHODS
The database was used to search the related chemical components of Aconiti Kusnezoffii Radix, predict the potential targets and intervene related diseases. The differential genes of T2DM relative healthy people were retrieved from GEO database, mapped with the action target of Aconiti Kusnezoffii Radix, and placed in DAVID database for biological function enrichment. The sensitivity of the target gene to T2DM was analyzed by one-way ANOVA, binary logistic regression analysis and ROC curve. The binding position and interaction force between chemical compounds of Aconiti Kusnezoffii Radix and target proteins were analyzed by molecular docking technology. The effect of Aconiti Kusnezoffii Radix and its chemical compounds on the expression of target protein was verified by T2DM model in vivo and in vitro.
RESULTS
Through database retrieval and analysis, 304 kinds of target related diseases(P value<0.05, FDR<0.05) were obtained, and T2DM with the highest degree value(Degree=59) was selected and analyzed. The 43 target genes were obtained from the intersection of differential genes in T2DM relatively healthy people and potential action targets of Aconiti Kusnezoffii Radix. A total of 9 genes with significant differences were obtained by one-way ANOVA, 5 meaningful genes were obtained by binary logistic regression analysis, and 3 genes with area under ROC curve AUC>0.5 were obtained. By molecular docking (+)-Isoboldine binds to proteins APEX1, CASP1 and CBFB, Napelline binds to proteins CBX1 and EHMT2 through different forces such as hydrogen bond interaction, ligand interaction, hydrophobic interaction, ionizability and electrostatic interaction, so as to increase the ability of ligands to target proteins. After 2 weeks of treatment with Aconiti Kusnezoffii Radix aqueous extract, Aconiti Kusnezoffii Radix may alleviated the symptoms of T2DM by improving peripheral neuropathy. Moreover, Aconiti Kusnezoffii Radix could affect the protein expression of APEX1, CASP1, CBFB, CBX1 and EHMT2 in rat liver tissue. The effect of (+)-Isoboldine and Napelline chemical compounds in Aconiti Kusnezoffii Radix on the target protein of the model in vitro was consistent with that in vivo.
CONCLUSION
It is preliminarily revealed that Aconiti Kusnezoffii Radix can be used as a potential therapeutic drug to improve T2DM peripheral neuropathy, which lays a theoretical foundation for the research and development of Chinese Mongolian medicine and the excavation of new target drugs for the treatment of T2DM.
7.Rapid analysis and identification of chemical components of ethanol extract from Mongolian medicine Sanzi san by HPLC-Q-Exactive-MS
Jun LI ; Yuxia HU ; Mengdi ZHANG ; Yuewu WANG ; Qian ZHANG ; Gejihu HU ; Feng GAO ; Fuhou CHANG
China Pharmacy 2022;33(11):1348-1354
OBJECTIVE To systematic ally stu dy the chemic al components of ethanol extract from Sanzi san ,and to provide reference for clarifying the pharmacodynamic material basis of the formulation. METHODS HPLC-Q-Exactive-MS technology was adopted. The determination was performed on Shim-pack GIST-HP C 18 column with mobile phase consisted of acetonitrile- 0.1% formic acid aqueous solution for gradient elution at the flow rate of 1 mL/min. The column temperature was 40 ℃,and sample size was 10 μL. Mass spectrometry conditions included the electrospray spray ion source was used for detection in positive and negative ion detection modes. Full MS/dd-MS 2 detection mode was adopted ,the resolution of Full MS was 70 000 and the resolution of dd-MS2 was 17 500. The scanning range was m/z 110-1 200. The ion peaks were identified by comparing with the information of control substances ,literature references and self-built database. RESULTS A total of 64 components were identified in the ethanol extract of Mongolian medicine Sanzi san , including 9 flavonoids,13 iridoids,14 organic acids ,18 tannins,3 triterpenes,3 amino acids and 4 fatty acids. CONCLUSIONS The ethanol extract of Mongolian medicine Sanzi san mainly include iridoids ,tannins and flavonoids ,which might be the pharmacodynamic material basis of Sanzi san.