1.Research progress of Dab2 gene in cancers
Cancer Research and Clinic 2013;25(12):847-850
The human Dab2 gene has a variety of physiological functions,and plays important roles in various signal transduction pathways.Researches have shown that reduced expression of Dab2 was closely related to the occurrence and development in many malignant cancers,and Dab2 has been regarded as a tumor suppressor.This paper reviewed about multiple researches on the structure and functions of Dab2,and explored the specific mechanisms in oncogenesis.
2.Elastase-induced intracranial aneurysm by means of endovascular balloon occlusion:preparation of animal model and progress in its applications
Qianyu XIE ; Chuan LU ; Xuemei JIANG
Journal of Interventional Radiology 2006;0(10):-
It is of capital importance to establish a reliable experimental animal model of intracranial aneurysm which should be extremely similar to human intracranial aneurysm in histological and hemodynamic aspects.For recent years,the elastase-induced aneurysm model by means of endovascular balloon occlusion has been widely used abroad.This paper aims to review the preparation of animal mode,the advantages and disadvantages of such a model as well as the recent progress in its applications.
3.Sulforaphane suppressed the proliferation of glioma stem cells via miR-124
Youke XIE ; Xuemei LI ; Dingping HUANG
Tianjin Medical Journal 2016;44(3):306-310
Objective To investigate the effect of sulfuraphane (SFN) on proliferation of glioma stem cell line SWO-38, and its mechanism threreof. Methods Cell proliferation of SWO-38 treated with SFN was measured by cell prolifera?tion assay. Clone formation experiment, tumor sphere formation experiment and Western blotting method were applied to de?tect the ability of cell clone formation and tumor sphere formation, and the expression of stemness relative genes, such asβ-catenin, Oct4, Sox-2 and c-Myc. The effects of SFN and/or miR-124 inhibitor (miR-124i) on the expression of stemness rel?ative genes were compared. Changes of miRNAs (miRNA-9, 21, 221, 124, 128 and 181) induced by SFN were measured by real time quantity PCR. Results SFN suppressed the proliferation of SWO-38 cells in a dose-dependent manner, in which IC50 was (26.41±2.13)μmol/L. SFN also decreased the ability of forming cell clone and tumor sphere, as well as the expres?sion of stemness relative genes (β-catenin, Oct4, Sox-2 and c-Myc) in a dose-dependent manner. At the same time, SFN led to the change in many miRNAs, during which SFN increased the transcription of miR-124 (-5.9-fold) and miR-128 (-2.6-fold), and decreased the transcription of miR-9, miR-21 and miR-221. Compared to the blank control, the expression levels ofβ-catenin, Oct4, and Sox-2 were significantly increased in miR-124i group. On the other hand, the expressions of above genes were also higher in combined group, which was treated with miR-124i and SFN than those in SFN group, but lower than those of miR-124i group. Conclusion SFN can efficiently inhibit the proliferation of giloma stem cells in SWO-38 cell line through miR-124/(β-catenin/Sox-2/Oct4) signaling pathway.
4.Therapeutic Effect Evaluation of Acupuncture and Chinese Patent Medicine on Rheumatoid Arthritis
Hongliang XIE ; Zhao SHI ; Xuemei CAO
Journal of Acupuncture and Tuina Science 2007;5(1):55-58
Objective: To evaluate the therapeutic effect of combining use of acupuncture and drugs on rheumatoid arthritis(RA) in the early and the active stages of by the imaging of bone and joint with 99m TC-methlene diphosphate(MDP). Methods: 102 cases of RA in the early and the active stages were randomly allocated into the compound Fengshining group (Group A),acupuncture group(Group B), and compound Fengshining plus acupuncture group(Group C).They were treated for 30 days. All patients were examined before treatment and after treatment by 99m TC-MDP imaging of the whole body, hands and feet, and analyzing method of random interested region was used to count the ratio of radioactivity in the affected area of RA to radioactivity in adjacent normal bone(T/TN). Meanwhile, joint swelling index, joint tenderness index, morning stiffness, gripping force, and erythrocyte sedimentation rate (ESR) were also observed. Results: T/TN of the Group A after treatments had no significant difference comparing with that before treatment(t = 1.35, P>0.05), while the Group B and C had significant differences(t = 5.31, t=8.97, P<0.01). The changes of clinical and experimental examination in the Group C had more significant differences than those in the Group A and B(P<0.05).Conclusion: Acupuncture therapy could promote RA recovery, and combining use of acupuncture and compound Fengshining had better effect.
5.The action time of parthenolide as selective nuclear factor-κB inhibitor in heart of rats
Xuemei WU ; Xia LIU ; Chen WANG ; Hong XIE
Chinese Journal of Biochemical Pharmaceutics 2009;30(6):365-367
Purpose To observe the action time of parthenolide (PTN) as selective nuclear factor-κB(NF-κB) inhibitor in heart of rats.Methods Forty SD rats were randomly divided into control(CON) group,PTN group,dimethyl sulfoxide(DMSO) group,lipopolysaccharide(LPS) group and PTN+LPS group.The first day:PTN group,DMSO group and PTN+LPS group rats were respectively injected interapertoneally PTN(500 μg/kg) and DMSO; other groups rats were injected interapertoneally equivalent saline.The second day(in equivalent to 24 h after injecting PTN):in LPS group and PTN+LPS group LPS(12.5 mg/kg) was administered subcutaneously; other group rats were injected subcutaneously equivalent saline.Every heart was obtained in equivalentce to 1 h after injecting LPS to measure the expression of NF-κB p50 in nucleus,inhibitory kappaB(IκBα) and phosphorylation inhibitory kappaB(p-IκBα) in cytoplasm of cardiac myocytes through Western blotting.Results Compared with CON group,the expression of NF-κB p50,IκBα and p-IκBα had no difference in PTN and DMSO group.And in LPS group and PTN + LPS group,the expression of NF-κB p50 up-regulated significantly(P<0.05),IκBα down-regulated(P<0.05) and p-IκBα up-regulated significantly(P<0.05).Conclusion LPS can activate NF-κB in 1 h and PTN in rats after 24 h has few effect.
6.Diffusion tensor MR imaging in pediatric patients with periventricular leukomalacia
Sheng XIE ; Xuemei GUO ; Aiguo CUI ; Jiangxi XIAO ; Xuexiang JIANG
Chinese Journal of Radiology 2001;0(03):-
Objective To compare pediatric patients with periventricular leukomalacia (PVL) with normal children by using diffusion tensor MR imaging. Methods Diffusion tensor images were obtained in 15 pediatric patients with PVL and 15 age-matched normal children. Regions of interest were drawn to measure the fractional anisotropy (FA) in bilateral posterior limb of internal capsule, bilateral optic radiation, genu of corpus callosum, and splenium of corpus callosum. The values of PVL patients and normal children were compared using non-dependent samples T-test. Results The FA values of regions of interest prescribed were significantly lower in PVL patients than in normal children(P
7.Preliminary study of normal changes in brain white matter during childhood with diffusion tensor imaging
Jiangxi XIAO ; Xuemei GUO ; Sheng XIE ; Xiaoying WANG ; Xuexiang JIANG
Chinese Journal of Radiology 2000;0(12):-
Objective To study the normal changes in brain white matter during childhood by analyzing the anisotropy of different regions and different age groups with diffusion tensor imaging (DTI). Methods DTI was performed in 89 children (age range from 2 days to 18 years) without brain abnormalities, and the data measured in fractional anisotropy(FA) maps were analyzed statistically. Children less than 6 months were ranged to group 1, 6-12 months to group 2, 1-3 years to group 3, 3-5 years to group 4, 5-8 years to group 5, 8-12 years to group 6, 12-18 years to group 7. Results (1) There were significant differences in anisotropy (FA values) among different regions of white matter in brain In group 7, the FA value of corpus callosum was 0.826?0.039, middle cerebellar peduncle 0.678?0.043, frontal white matter 0.489?0.033. (2) The anisotropy among different age group was statistically different, P
8.Clinical Study on Acupuncture Combined with Back Shu Acupoint Catgut Embedding Therapy in Treating Allergic Rhinitis
Xing CUI ; Yuntian WU ; Chongni HU ; Xuemei YANG ; Yufeng XIE
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(10):18-21
Objective To investigate the clinical efficacy of acupuncture combined with back Shu acupoint catgut embedding therapy in treating allergic rhinitis. Methods Totally 66 allergic rhinitis patients were included. Random number table method was used to divide the 66 patients into observation group and control group, with 33 cases in each group. The control group was given Ketotifen Fumarate Nasal Drops nose drops 2 drops each time, 3 times a day, Loratadine Tablets 10 mg orally, once a day for 4 weeks. The experimental group was treated with acupuncture, once a day, 10 d as a treatment course, three courses in total; at the same time, back Shu acupoint catgut embedding therapy was given, 15 d each time, twice treatment in total. After the end of treatment, clinical efficacy, clinical symptom score, life quality score, serum levels of inflammatory factors, serum immunoglobulin, peripheral blood eosinophil count and the incidence of adverse reactionsof the two groups were observed. Results The total effective rate was 93.94% (31/33) in observation group and 75.76% (25/33) in the control group, with statistical significance in the two groups (P<0.05). Compared with before treatment, the TNSS score, TNNSS score and RQLQ score of the two groups were significantly lower than after treatment (P<0.05); the IgE and EOS levels significantly decreased (P<0.05); the serum IL-17 and IL-22 levels were significantly lower (P<0.05). Compared with the control group, the TNSS, TNNSS and RQLQ score and the levels of IgE, EOS, IL-17 and IL-22 in the treatment group were lower after treatment (P<0.05). There was no significant difference in adverse reactions between the two groups (P>0.05). Conclusion Acupuncture combined with catgut embedding therapy in the treatment of allergic rhinitis has a significant clinical efficacy, which can improve the level of inflammatory factors in patients with high safety.
9.Protective Effect of Compatibilities of Ginsenosides Rg1 and Aconitine on Myocardial Cells of in vitro Cul-tured Heart Failure Model
Yanhong DONG ; Xiaofang XIE ; Xuemei LI ; Yaning ZHU ; Cheng PENG
China Pharmacy 2017;28(4):472-475
OBJECTIVE:To investigate the protective effect of the compatibilities of ginsenosides Rg1 and aconitine on myocar-dial cell of in vitro cultured heart failure model. METHODS:The myocardial cells of neonate rat were grouped into normal control group,model group,positive control group(Deslanoside injection,1×10-7 mol/L),ginsenosides Rg1 group(1×10-8 mol/L),acon-itine group (1 × 10-9 mol/L) or their compatibilities groups (1∶1,2∶1,1∶2,V/V). Except for normal control group,other groups were given 0.8%pentobarbital sodium to induce heart failure model of myocardial cells. After modeling,each group was given rele-vant medicine for 1 h,and then the activities of T-ATPase,Ca2+-Mg2+-ATPase,Na+-K+-ATPase in cells were all detected. The activi-ties of acyl carrier protein(ACP)and lactate dehydrogenase(LDH),and the contents of brain natriuretic party(BNP),TNF-α and total glycogen were measured in cell culture fluid. RESULTS:Compared with normal control group, T-ATPase and Ca2+-Mg2+-ATPase activities were decreased significantly in model group;meanwhile,Na+-K+-ATPase activity was increased signifi-cantly,and ACP,LDH activities and BNP content in cell culture fluid were increased significantly(P<0.05). Compared with mod-el group,the activities of T-ATPase in treatment groups were increased significantly,while the activity of LDH in cell culture fluid was decreased significantly;when the volume ratio of ginsenoside Rg1 to aconitine was 2∶1,protective effect was the strongest;the activities of Na+-K+-ATPase in aconitine group and compatibility groups were all decreased significantly,with statistical signifi-cance(P<0.05). The activities of ACP and BNP in cell culture fluid were all decreased in treatment groups,but the content of to-tal glycogen in cells and the TNF-α content of in cell culture fluid had no change (P>0.05). CONCLUSIONS:Compatibility of ginsenosides Rg1 and aconitine can improve ATPase activities and membranous permeability,regulate BNP secretion and protect myocardial cell of heart failure model,especially the compatibility of ginsenosides Rg1 to aconitine of 2∶1 ratio.
10.Precision Medicine and Modernization Research on Traditional Chinese Medicine——The Fifth Discussion on the Proposal of Holistic Systems Medicine
Guoan LUO ; Yuanyuan XIE ; Yiming WANG ; Xuemei FAN ; Qionglin LIANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2017;19(1):19-29
The origin of precision medicine was discussed in this article,as well as its advantages and deficiencies at this stage.Tangshen formula was taken as an example to explain a rational and ideal mode of traditional Chinese medical (TCM) precision medicine research under the guidance of TCM theory.In view of the two major problems existing in the TCM modernization research,including the separated strategy among formula-disease-syndrome and independent research approach using genomics,proteomics and metabonomics,critical scientific issues on developing the drug system to biological system research mode and solutions for integrating formula-disease-syndrome were proposed here,and the roadmap and total framework of top design were also provided.The specific methods and the corresponding research results on Tangshen formula at the three stages concluded as formula-disease related,disease-syndrome combinated and formula-disease-syndrome integrated were introduced and summarized.At this time for the innovative breakthrough development of TCM,precision medicine will promote the TCM modernization research,and also will provide a powerful driving force for the establishment of holistic systems medicine.