1.Clinical observation of treatment of acute myocardial infarction by simvastatin with low molecular weight heparin
Qian QIN ; Yan XU ; Zhiwei ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2009;16(5):804-806
Objective To observe the clinical effect and side-effect of low molecular weight beparin (LMWH) and simvastatin on patients with acute myocardial infarction(AMI). Methods 80 cases of AMI were randomly divided into simvastatin with low-molecular-weight heparin treatment (joint group) 40 cases and nitrates drug treatment( conventional group) 40 cases Au the patiants were observed before and after treatment for serum inflammatory factor,quantitative gated tomography,Holter and analysis of the effectbefore and after treatment. Results The conventional group and joint group after the treatment of TC, TG, LDL, HDL-C, hs-CRPs, CD40L levels were decreased than before treatment (t=2. 131, t = 2. 211, t = 2. 235, t = 2. 211, t = 2. 115, t = 2. 274, both P<0. 05 ) ; the joint group after treatment bs-CRP, sCD40L significantly declined than conventional group (t = 2. 231, t = 2. 245, both P<0. 05 ) ;conventional group of IMT dropped 1.1% lower than the 3.4% of the joint group ( X2 = 4. 01,P<0. 05 ) ; conventional treatment group plaque score 11.5% higher than the combined group plaque score decreased 16. 9% (X2 =4. 25 ,P<0. 05) ;joint group after treatment,a few soft spots(7. 7 %) lower than before treatment(28.2%) (X2 = 6. 78,P<0. 01) ;the joint group of EDV,ESV,EF after treatment decreased significantly than before treatment (t =2. 221 ,t =2. 342 ,t = 2. 245, P<0. 05) ; conventional treatment group and joint group after the number of ischemic attack, ST above the largest decrease, ST segment depression was significantly lower than the time before treatment(t=2. 731 ,t=2. 781, t=2. 785,t=2. 781, t=2. 815, t=2. 874, both P<0. 01);joint total effective rate 90. 0% higher than the conventional group 67.4% (X2=4. 25,P<0. 05 ). Conclusion Simvastatin combined with LMWH have good effect in the treatment of acute myocardial infarction.
2.Clinical Study on 38 Cases of Early Diabetic Nephropathy Treated by the Method of Reinforcing Kidney,Activating Blood and Removing Obstruction of Meridians
Yan-Qin HUANG ; Yun-Sheng XU ;
Journal of Traditional Chinese Medicine 1993;0(05):-
Objective To observe the effect of Tangluotong Decoction(Decoctions of removing obstruction of meridians for treating diabetes)based on the principle of reinforcing kidney,activating blood and removing obstruction of meridians on the early diabetic nephropathy(DN)patients.Methods Totally 68 DN patients were randomized into two groups.In addition to the routine treatment for diabetes,the treatment group(38 patients)was administered Tangluotong Decoction while the control group(30 patients)was giv- en Lossartan Potassium Tablets.The clinical symptoms and signs and lab indices before and after treatment were observed.Results The comprehensive total effective rate of the treatment group was 89.47% while that of control group was 60.00%,the difference was significant(P
5.Investigation and analysis about the situation of elective courses in our students
Liping LIU ; Yan QIN ; Xiaojing MAO ; Qunwei XU
Chinese Journal of Medical Education Research 2006;0(07):-
Objective To investigate the present situation of elective course,find out the problems,explain the causes and offer some suggestions.Methods Using the information collected from self-made questionnaires,and analysis data.Results The survey shows that there are the problems of elective courses in the installation,time,management,contents,teachers,exam,and so on.Conclusion The system of elective course should be made perfect in construction,management and operation.
6.Effect and mechanism of neuroepithelial cell transforming gene 1 on cellular radiosensitivity
Chang XU ; Yan WANG ; Liqing DU ; Qin WANG ; Qiang LIU
Chinese Journal of Radiological Medicine and Protection 2015;35(1):49-52
Objective To study the effect of neuroepithelial cell transforming gene 1 (Net1) on the cellular radiosensitivity and underlying mechanism.Methods Real-time quantitative PCR was used to measure the variations in Net1 expression level upon irradiation.Radiosensitivity was analyzed by colonyforming assay after Net1-siRNAs.Net1-associated proteins were identified by co-immunoprecipitation.Results The Net1 mRNA level in the cells was increased significantly (t =-10.52,P < 0.05) after irradiation.Compared to the control group,siRNA-mediated silencing of Net1 enhanced cell radiosensitivity (t =15.31,11.65,P <0.05).Net1 was found to interact with Ku70,Ku80 and DNA-PKcs under either normal conditions or after irradiation.Conclusions Net1 could protect cells from irradiation by interaction with DNA repair proteins in non-homologous end joining pathway.
7. Distribution of Epimedium sagittatum and its research progress on quality characteristics
Chinese Traditional and Herbal Drugs 2020;51(23):6119-6132
To promote the rational development and utilization of Epimedium sagittatum, and to propose the utilization strategies and future research suggestions. The distribution was illuminated based on the examination of herbarium specimens and our field investigation. At the same time, the quality characteristics of different harvest time, different parts and different producing areas were summarized according to the literature review and our previous researches. In terms of the distribution, E. sagittatum is a widely distributed species in Epimedium. However, there were many errors in the identification of herbarium specimens. At least 13 taxa were wrongly identified as E. sagittatum. The distribution of E. sagittatum was not as extensive as previously recorded in the literature. Although the distribution of E. sagittatum has been recorded in 12 provinces and in Chongqing Municipality, it was mainly distributed in Anhui, Jiangxi, Hunan and Hubei provinces, and the resources in each region were not abundant. In terms of quality characteristics, there were great differences in both composition and contents of the active components among different germplasm. Some of the germplasm in Hunan, Hubei and Sichuan provinces were excellent. However, the stability and homogeneity were not ideal. Therefore, the utilization of E. sagittatum should depend on the quality characteristics. It was found that there were great differences among populations and which were closely related to the genetic basis. The effect of physiological ecology on quality and its mechanism, as well as the molecular mechanism of quality formation should be paid more attention in the future.
8. Taxonomic research on Epimedium sagittatum species complex and discussion
Chinese Traditional and Herbal Drugs 2014;45(22):3343-3350
Epimedium sagittatum and its related species are the most controversially defined in Epimedium taxonomy, and are referred as E. sagittatum species complex. So far 11 taxa are included in the complex, but the taxonomical status of most species/varieties is probably open to question. New species based on a single of solely on vegetative characters are of frequent occurrence. Species based on plasticity of phenotype variation should not be regarded as "good species". Based on the investigation in the herbaria, literature, and fields, we found that the morphological variations between some taxa were continuous. Thus E. sagittatum var. guizhouense and E. pudingense were treated as a synonym of E. sagittatum and E. sagittatum var. glabratum, respectively. Six taxa, namely E. coactum, E. coactum var. longtouhum, E. myrianthum var. jianheense, E. multiflorum, E. lobophyllum, and E. jingzhouense were integrated into E. myrianthum. Therefore, the taxonomic problems of E. sagittatum species complex now are back to the relationship between E. myrianthum and E. sagittatum. In morphology, E. myrianthum closely resembles E. sagittatum with only obvious difference in the form of inflorescence, and might be easily confused. Furthermore, in terms of several key taxonomic characters, there was overlapping question between the two taxa, and further research on taxonomy based on more extensive field investigation were needed. A correct species concept stems from a correct and thorough understanding of the nature of variation pattern of plants and its taxonomical value. In general, lack of scientific field investigation and morphological observation, inadequate study on variation range, variation pattern, taxonomical value, and narrow species concept are the reasons for the taxonomical difficulty to deal with.
9.Analysis of Piper puberulum (Benth.) Maxim.extracts preparation and the preliminary qualitative chemical composition
Yan YANG ; Qin WU ; Qihai GONG ; Shibing XU ; Jingshan SHI
Chinese Journal of Biochemical Pharmaceutics 2015;37(5):169-173
Objective To investigate optimal extraction process of Piper puberulum ( Benth.) Maxim.and qualitative analyze the chemical component of the extracts.Methods Method of solvent heating reflux was used for extraction.On the basis of single factor experiment, L9 (34 ) orthogonal experiment was designed with the variants of extraction frequency, time, material-liquid ratio, and immersion time.Extraction rate as index, extraction processes were optimized to achieve best extraction.The extracts, including total extract, water elution, and ethanol elution, were physiochemically analysed to achieve an initial qualitative result.Results The optimal extraction process was: extractions 3 times for 2 hours, with an 1︰30 material -liquid ratio and 2 hours of immersion, Initial qualitative analyzed the total extracts containing amino acids, polypeptides, proteins, alkaloids, steroids or triterpenes, flavones, saponins, polysaccharides, reducing sugars or glucosides, cumarins, terpene lactones, phenols, and tannins.The water elution containing: amino acids, polypeptides, proteins, saponins, polysaccharides, reducing sugars or glucosides, cumarins, and terpene lactones.The ethanol elution containing: amino acids, polypeptides, proteins, alkaloids, steroids or triterpenes, flavones, polysaccharides, reducing sugars or glucosides, phenols, and tanins.Conclusion The experiments show that optimal extraction process can achieve high extraction yield, stable and practical.
10.Relationship between intrahepatic interleukin-17 expression and hepatic fibrosis in chronic hepatitis B virus infection
Wenjun DU ; Shaolei HAN ; Yan XU ; Laiying QIN ; Shijun CHEN
Chinese Journal of Infectious Diseases 2010;28(6):359-363
Objective To explore the relationship between intrahepatic expression of interleukin-17 (IL-17) and liver fibrosis in patients with chronic hepatitis B virus infection. Methods IL-17 expressions in livers with different inflammation activity grades and hepatic fibrosis stages from patients with chronic hepatitis B virus carriers (n= 30), chronic hepatitis B (CHB, n = 55), liver cirrhosis (LC, n=20) were measured by immunohistochemistry. Serum IL-17 and liver fibrosis indices of haluronic acid (HA), laminin (LN), type Ⅲ procollagen (PC Ⅲ ) and type Ⅳ collagen ( Ⅳ C) were determined by enzyme linked immunosorbent assay (ELISA). The differences between groups were compared by Kruskal-Wallis test, and the Mann-Whitney test, and the correlation analysis was done by Spearman test. Results Intrahepatic IL-17 expression in LC group was significantly higher than CHB group (x2 =25. 3982, P=0. 004), and that in CHB group was higher than chronic hepatitis B virus carriers group (x2 = 11. 5056, P= 0. 001). The inflammation activity grade and hepatic fibrosis stage were both positively correlated with IL-17 expression (r= 0.718, 0. 693, respectively; both P<0.01). IL-17 mainly located in portal area and the expression was positively correlated with serum levels of HA, LN, PCⅢ and ⅣC (r=0. 793, 0. 834, 0. 722, 0. 883, respectively; all P<0.01).Conclusion Intrahepatic IL-17 expression is closely correlated with liver inflammation activity grade and hepatic fibrosis stage.