1.HPLC Determination of Galuteolin in Qingyan Buccal Tablets
Jun ZHANG ; Su YUAN ; Liyun ZENG ; Liling ZHAN
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(02):-
Objective To establish a HPLC method for the determination of galuteolin in Qingyan buccal tablets.Methods A Phenomenex luna C18 column served as stationary phase and the mobile phase was acetonitrile-0.5 %glacial acetic acid,gradient elution with the flow rate of 1 mL?min-1.The column temperature was 25 ℃and detection wavelength was 350 nm.Results A good linearity of galuteolin was in the range of 0.077 12 ?g~0.771 2 ?g and r=0.999 6.The average recovery of galuteolin was 101.35 %and RSD=1.58 %.Conclusion This method is simple,sensitive,accurate,and will provide evidence for the determination of galuteolin in compound preparations.
2.HPLC Determination of Ferulic Acid in Xuefu Zhuyu Decoction
Huicheng YE ; Qixin YE ; Daimei WANG ; Liyun ZENG
Traditional Chinese Drug Research & Clinical Pharmacology 2009;20(4):356-358
Objective To establish a HPLC method for the determination of ferulic acid in Xuefu Zhuyu Decoction. Methods A Kromasil C18(250 mm ×4. 6 mm, 5 μm) column was adopted. The mobile phase consisted of acetonitrile-0. 085 % phos-phoric acid(17 : 83)with the flow rate of 1.0 mL/min. The column temperature was at 35 ℃ and detection wavelength was set at 316 nm. Results A good linearity of ferulic acid was in the range of 0. 0252μg to 0. 504μg and r=0. 999 9. The average recovery was 100. 15 % and RSD=1.69 %. Conclusion The method is simple and rapid, and it is suitable for the determi-nation of ferulic acid in Xuefu Zhuyu Decoction.
3.Playing games and the angle of genu recurvatum in children with spastic cerebral palsy
Xiaoyan WANG ; Qingliang CHEN ; Wumei HUANG ; Liyun ZENG
Chinese Journal of Physical Medicine and Rehabilitation 2012;34(5):369-371
Objective To investigate the efficacy of playing games for improving the angle of genu recurvatum in children with spastic cerebral palsy. MethodsFifty children with spastic cerebral palsy were randomly assigned into a control group (25 cases) and an experimental group (25 cases).The children in both groups were treated using conventional comprehensive rehabilitation and guided family rehabilitation.The children in the experimental group also played games in addition to the conventional rehabilitation practices.The angle of genu recurvatum was assessed using a protractor before and after treatment. ResultsNo significant difference in any item was observed between the two groups before treatment.There was a significant difference in the angle of genu recurvatum after 6 months of treatment. ConclusionPlaying games has evident clinical efficacy in improving the angle of genu recurvatum of children with spastic cerebral palsy.
4.Influence of basic thyroid-stimulating hormone levels on outcomes of IVF/ICSI in Qinghai
Xianghui ZENG ; Liyun WANG ; Xiaowei SHU ; Zhengfang XIONG ; Xiaohong DANG
Chinese Journal of Obstetrics and Gynecology 2014;49(10):763-767
Objective To study basic thyroid stimulating hormone (bTSH) levels impact on outcomes of in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) in Qinghai.Methods Totally 282 cases with IVF cycles and 93 cases with ICSI cycles were studied prospectively,according to bTSH level,patients were divided into four groups.Reproduction rate,clinical pregnancy rate,miscarriage rate and live birth rate were studied among four groups.Results (1) In 375 cases with IVF/ICSI cycles,bTSH was positively correlated with abortion rate (r=0.42,P=0.04),but live birth rate and growing rate showed negative correlations with bTSH (r=-0.42,-0.28; P=0.04,0.03).bTSH and the number of eggs,the number of fertilized eggs,the number of embryos,biochemical pregnancy rate,and clinical pregnancy rate were no significant correlation (all P>0.05).(2) Among women at group of ≤1.7,>1.7 and ≤2.5,>2.5 and ≤3.5,>3.5 mU/L,the implantation rates were 28.7%,27.3%,37.7% and 19.2%,live birth rates were 80.9%,75.0%,82.7%,and 59.8%,abortion rates were 19.0%,15.0%,16.7%,40.1%; they all showed significant difference (all P<0.05).Abortion rate in women with high bTSH level was higher than that of women with lower bTSH level,however implantation rate,live birth rate in women with high bTSH level were lower.Conclusion When bTSH level is >3.5 mU/L,the abortion rate were increased,but live birth rate,rate of implantation were decreased.
5.Influencing factors of static adsorbing process of extract of Herba Artemisiae scopariae with macroporous resin
Yuaner ZENG ; Fengyun WANG ; Bin JIANG ; Liyun ZENG ; Xiaoping LAI ; Jun ZHANG
Chinese Traditional Patent Medicine 1992;0(02):-
AIM: To study the influencing factors of static adsorpting process of extract of Herba Artemisiae scopariae with macroporous resin,and determine the refinement process. METHODS: The absorbances and the adsorption quantity of caffeotannic acid were used as indexes,the adsorption effect of 9 kinds of macroporous resin and static adsorption curve of F resin;density and pH of the extract liquor were investigated by use of factorial experiment;HPLC fingerprint of extract of Herba Artemisiae scopariae were evaluated the adsorption effect.(RESULTS:) The adsorpting effect were different among types of macroporous resin,and the adsorpting equilibrium time was 6 h in the use of F resin;Density and pH of the extract liquor are important factors of adsorption;The experiment indicated that decreased liquor by this process were important factors of adsorption;The experiment indicated that this process decreased the yield of extract by 2.5%. CONCLUSION: The result can offer information about the determination of refinement process of extract of Herba Artemisiae scopariae with macroporous resin.
6.Evaluation of liver fibrosis in a rat model by acoustic radiation force impulse elastography
Senhao LIN ; Hong DING ; Liyun XUE ; Lijuan MAO ; Feng MAO ; Hongguang ZHU ; Wenjiao ZENG ; Wenping WANG
Chinese Journal of Ultrasonography 2012;21(2):164-166
Objective To investigate the usefulness of acoustic radiation force impulse (ARFI) elastography for noninvasive evaluation of liver fibrosis in rats.Methods A total of 70 male Wistar rats were included in the group for dimethylnitrosamine (DMN)-induced liver injury,and 10 saline-injected rats were used as normal control.Hepatic injury was induced by a single intraperitoneal injection of DMN at a dose of 50 mg/kg of body weight.Several rats in the group with DNM injected and the normal control group were randomly selected and sacrificed at each of the following post-injection time:day 5,7,10,14,21,24,and 28.And their livers were taken for pathology analysis.All the rats underwent ARFI elastography before sacrificed in order to acquire a shear wave velocity (Vs) to represent liver stiffness.Correlation between Vs and the histological finding was analysed.ResultsAmong 58 successfully modeled rats,9,13,14 and 12 rats were found to be with S1,S2,S3 and S4 of liver fibrosis pathologically,respectively.And 10 rats were found to be with severe inflammatory activity without any fibrosis.Values of Vs increased with the stage of liver fibrosis ( P <0.05).There was a significant correlation between Vs and stage of liver fibrosis ( r =0.947,P =0.000).The areas under ROC curve for the diagnosis of fibrosis S≥S1,S≥S2,S≥S3 and S=S4 were 0.983,0.995,0.999 and 0.964,respectively;for the cutoff values of Vs were 1.59 m/s,2.13 m/s,2.33 m/s and 2.51 m/s,respectively,the sensitivity was 95.8%,92.3%,100% and 84.6%,and specificity was 100%,100%,96.9% and 95.6%,respectively.The values of Vs in the group with severe inflammatory activity were significantly higher than those in the control group ( P =0.000).ConclusionsARFI has a relatively high value in the evaluation of liver fibrfosis in rats,while severe inflammatory activity may affect its accuracy.
7.Self-management behaviors in patients with osteoarthritis
Wenli WANG ; Xiaoju TAN ; Xinge ZHAO ; Shaobin DUAN ; Liyun ZENG ; Liping ZHAO
Journal of Central South University(Medical Sciences) 2013;38(11):1188-1192
Good self-management behaviors can control symptoms of the patients with osteoarthritis, improve the patients' joint function and quality of life. Patients' self-management behaviors have been impacted by disease knowledge, self-effcacy, emotional state, and social support. All the above factors should been taken into full consideration when intervening. Self-management program is an intervention mode which can improve patient self-management behaviors and promote patient health.
8.Clinical analysis of different canalith repositioning maneuver in treatment of apogeotropic nystagmus of horizontal semicircular canal benign paroxysmal positional vertigo.
Guoqing ZHANG ; Yueying TANG ; Yu CHEN ; Yisheng ZENG ; Yahua XU ; Liyun WANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(18):1602-1604
OBJECTIVE:
To analyze the clinical effect of different canalith repositioning maneuver in the treatment of the apogeotropic nystagmus of horizontal semicircular canal benign paroxysmal positional vertigo (apogeotropic HSC-BPPV).
METHOD:
Forty patients of apogeotropic HSC-BPPV colleted from March 2014 to May 2015 were divided into two groups, each group had 20 cases. The control group was repositioned with the Gufoni maneuver before the Barbecue maneuver, the research group with the improved Nuti maneuver.
RESULT:
The success rate of the research group was not lower than that of the control group, which hadn't statistical (P > 0.05). And after the Barbecue maneuver, all patients have been recovered.
CONCLUSION
Comparing with the Gufoni maneuver, the improved Nuti maneuver designed by us, had the same success rate to treat apogeotropic HSC-BPPV, and is easier to learn,with more compliance,more comfort and more repeatability.
Benign Paroxysmal Positional Vertigo
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therapy
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Humans
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Nystagmus, Pathologic
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therapy
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Patient Positioning
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methods
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Semicircular Canals
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physiopathology
9.Influence of cyclophosphamide and its metabolites on PTEN gene after acting on ovarian cancer cell line SKOV3
Zhengfang XIONG ; Bing LI ; Xianghui ZENG ; Liyun WANG
Chongqing Medicine 2018;47(4):453-455
Objective To study the effect of cyclophosphamide(CP) and its metabolites acrolein(ACR) on PTEN gene deleted on chromosome 10 after acting on ovarian cancer cellsSKOV3.Methods Different concentrations of CP and ACR were selected to act on recombinant PTEN protein.The phosphorylation activity of PTEN was detected by PNPP.The expression of PTEN protein was detected by Western blot.The binding mode of drug with protein was detected by the biotin combined with protein;meanwhile the expression change of P53/TP53 in PTEN gene pathway was analyzed.The target protein was obtained by immunoprecipitation(IP) after different drug concentrations acting on the cells.The phosphorylation activity of the target protein was detected by high performance liquid chromatography(HPLC).Results After the drug metabolites acting on recombinant PTEN protein,the phosphorylation activity was decreased with the increase of drug concentration,while the expression of ACR antibody action was increased with the drug concentration elevation.The expression of protein and biotin in different experimental groups was increased with the increase of drug concentration.The PTEN phosphorylation activity was decreased with the drug concentration increased in cells,and so did the expression of TP53 protein.Conclusion CP metabolite ACR induces the cytotoxicity by inhibiting PTEN protein phosphorylation activity.
10.Role of miR-5010-3p in predicting the prognosis of hepatocellular carcinoma
Zhenyu CAO ; Liyun ZENG ; Zicheng WANG ; Yi ZHOU ; Ke QIAN
Journal of Central South University(Medical Sciences) 2023;48(9):1281-1295
Objective:Numerous miRNAs have been found to be abnormally expressed in hepatocellular carcinoma(HCC).However,clinical significance of miR-5010-3p in HCC is not elucidated.This study aims to explore the prognostic value and role of miR-5010-3p in HCC.Methods:The differential gene expression analysis of miR-5010-3p in HCC was performed based on the Cancer Genome Atlas(TCGA)database.The receiver operating characteristic(ROC)curve was used to evaluate the predictive value of miR-5010-3p expression level for HCC prognosis.The Kaplan-Meier,Cox univariate,and Cox multivariate analysis were used to predict its role in the prognosis of HCC.The downstream target genes were predicted.Gene ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)analysis were performed to predict the potential functional pathways they may participate in.Finally,methyl thiazolyl tetrazolium(MTT)assay and 5-ethyl-2'-deoxyuridine(EDU)incorporation experiment were carried out to prove its effect on proliferation.Results:The expression of miR-5010-3p was associated with histological grade(P=0.019),vascular invasion degree(P=0.049),TP53 level(P=0.004),and alpha fetoprotein(AFP)level(P=0.012).A moderate ability to distinguish between tumor and paracancerous tissues of miR-5010-3p in HCC was perceived by ROC curve(AUC:0.712,95%CI 0.649 to 0.776).High expression of miR-5010-3p was associated with shorter overall survival(OS)(P=0.003).The results of functional enrichment analysis showed that miR-5010-3p was related to the tumorigenesis process.In vitro experiments verified that miR-5010-3p promoted the proliferation of hepatocellular carcinoma cells.Conclusion:MiR-5010-3p promotes the proliferation of liver cancer cells,and its high expression is associated with poor prognosis,which may be a potential prognostic marker.