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Effect of Electroacupuncture on Platelet-derived Growth Factor and the Ultrastructure of Mitochondria in Rats with Diabetic Gastroparesis 被引量:8
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作者 WEI Xing PENG Yan +2 位作者 ZHAO Dong-Feng XIAO Xiao-Juan LIN Ya-Ping 《Digital Chinese Medicine》 2020年第1期34-43,共10页
Objective To observe the effect of electroacupuncture(EA)at the pressure points Zu San Li(ST36),San Yin Jiao(SP6)and Liang Men(ST21)on platelet-derived growth factor(PDGF)and the ultrastructure of mitochondria in rats... Objective To observe the effect of electroacupuncture(EA)at the pressure points Zu San Li(ST36),San Yin Jiao(SP6)and Liang Men(ST21)on platelet-derived growth factor(PDGF)and the ultrastructure of mitochondria in rats with diabetic gastroparesis(DGP).Methods Sixty Sprague Dawley(SD)rats were randomly separated into a normal control group(NC,n=10)and a modeling group(n=50).Rats in the modeling group received an injection of 2%streptozotocin(STZ)and a high-fat and highglucose diet for eight weeks to establish a DGP rat model.At the same time,blood glucose and a general symptom score were recorded every week.After modeling,30 successfully modeled rats were randomly separated into the following groups:the DGP group(n=10),the EA group(n=10)and the metoclopramide(MP)group(n=10).After three weeks of intervention,the gastrointestinal propulsive rate was measured by measuring the optical density(OD).The concentration of Ca2+was determined by fluorescence immunoassay,and levels of serum insulin(INS)and PDGF were determined by ELISA.The ultrastructure of mitochondria was observed with transmission electron microscopy.Results(1)After intervention,levels of blood glucose and the general symptom score were greatly decreased in the EA group compared to the DGP group(P<0.01).Compared with the DGP group,the gastric emptying rate and the intestinal propulsive rate of the EA group was significantly improved(P<0.01),and there was no statistically significant difference between the EA and the NC groups.(2)Compared with the NC group,the levels of INS in the DGP group markedly decreased(P<0.05),but there was no significant difference of INS levels between the EA and the MP roups.(3)Compared with the DGP group,theconcentration of Ca2+in the EA and the MP groups significantly increased(P<0.01,P<0.05,respectively).(4)Compared with the NC group,the average OD of PDGF in the DGP group was significantly higher(P<0.01).Compared with the DGP group,levels of PDGF in the EA group increased significantly(P<0.01).(5)There were abundant mitochondria with a clear structure and complete cristae in the NC group.However,in the DGP group,mitochondria were severely swollen,partly vacuolated,and cristae were either fractured,absent,or shortened.In the EA group,mitochondria were slightly swollen,with clear cristae.Conclusions Electroacupuncture at the points Zu San Li(ST36),San Yin Jiao(SP6)and Liang Men(ST21)may improve gastric motility in DGP by up-regulating the amount of PDGF and improving the ultrastructure of mitochondria. 展开更多
关键词 Electroacupuncture(EA) Diabetic gastroparesis(DGP) platelet-derived growth factor(pdgf) Mitochondria Gastric motility
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血清CCL-20、PDGF-BB、CYFRA21-1水平对NSCLC患者靶向治疗效果的预测价值
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作者 赵志娟 仝岩 +1 位作者 李文博 冯慧洁 《实用癌症杂志》 2024年第4期590-593,共4页
目的分析血清趋化因子配体20(CCL-20)、血小板源性生长因子BB(PDGF-BB)、细胞角化素蛋白片段19(CYFRA21-1)对非小细胞肺癌(NSCLC)患者靶向治疗效果的预测价值。方法选取进行靶向治疗的79例中晚期NSCLC患者,均持续治疗2月,评价患者近期... 目的分析血清趋化因子配体20(CCL-20)、血小板源性生长因子BB(PDGF-BB)、细胞角化素蛋白片段19(CYFRA21-1)对非小细胞肺癌(NSCLC)患者靶向治疗效果的预测价值。方法选取进行靶向治疗的79例中晚期NSCLC患者,均持续治疗2月,评价患者近期疗效。收集患者一般临床资料,并于治疗前后分别检测患者血清趋化因子CCL-20、PDGF-BB、CYFRA21-1水平,比较不同疗效患者间相关资料差异,分析影响疗效的因素,并利用ROC分析血清趋化因子CCL-20、PDGF-BB、CYFRA21-1水平预测近期疗效的价值。结果79例中晚期NSCLC患者均完成2个月的靶向治疗,治疗总有效率为45.57%(36/79)。有效组共36例,无效组(SD+PD)共43例,2组年龄、性别、病理类型相较无差异(P>0.05);有效组TNMⅢB期、高分化占比高于无效组(P<0.05);有效组治疗前后血清CCL-20、PDGF-BB、CYFRA21-1水平均低于无效组(P<0.05)。多因素Logistic回归分析结果显示,治疗前血清CCL-20、PDGF-BB、CYFRA21-1水平为影响疗效的独立因素(OR=9.574,10.903,11.156,P<0.05)。ROC分析结果显示,治疗前血清CCL-20、PDGF-BB、CYFRA21-1水平均具有预测临床疗效的价值(AUC=0.775,0.896,0.669,P<0.05)。结论中晚期NSCLC患者血清CCL-20、PDGF-BB、CYFRA21-1水平与靶向治疗效果有关,可作为靶向治疗近期疗效评估的辅助性指标。 展开更多
关键词 非小细胞肺癌 血清趋化因子CCL-20 血小板源性生长因子BB 细胞角化素蛋白片段19 靶向治疗 近期疗效
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LPS、PCT与PDGF联合检测对COPD急性期合并下呼吸道感染的诊断价值 被引量:1
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作者 王嘉妮 周忻 +3 位作者 任传路 唐敏 褚丽 吴薇 《中国急救复苏与灾害医学杂志》 2024年第3期336-339,345,共5页
目的探讨血清内毒素(LPS)、降钙素原(PCT)与血小板衍生生长因子(PDGF)联合检测对慢性阻塞性肺疾病急性期(AECOPD)合并下呼吸道感染的诊断价值。方法选取2021年1月—2022年12月期间联勤保障部队第九〇四医院收治的147例AECOPD患者为观察... 目的探讨血清内毒素(LPS)、降钙素原(PCT)与血小板衍生生长因子(PDGF)联合检测对慢性阻塞性肺疾病急性期(AECOPD)合并下呼吸道感染的诊断价值。方法选取2021年1月—2022年12月期间联勤保障部队第九〇四医院收治的147例AECOPD患者为观察对象。统计AECOPD患者合并下呼吸道感染情况,并依据是否合并下呼吸道感染分为发生组和未发生组。对比发生组和未发生组患者的临床资料。Logistic多因素回归分析影响AECOPD患者合并下呼吸道感染的危险因素。制作受试者工作特征曲(ROC),以曲线下面积(AUC)分析血清LPS、PCT及PDGF三者联合对AECOPD患者合并下呼吸道感染的诊断价值。结果AECOPD患者合并下呼吸道感染发生率为21.09%。发生组肿瘤坏死因子-α、白细胞介素-6、干扰素-γ、C反应蛋白(CRP)、血清LPS、PCT及PDGF水平均高于未发生组(P<0.05),IgG则低于未发生组(P<0.05)。Logistic多因素分析显示,白细胞介素-6(CI:2.898,95%CI:1.076~4.185)、LPS(CI:3.725,95%CI:2.729~10.354)、PCT(OR:3.089,95%CI:1.762~6.435)、PDGF(CI:3.330,95%CI:2.187~8.496)水平均是影响AECOPD患者合并下呼吸道感染发生的危险因素(P<0.05)。ROC曲线分析结果显示,血清LPS、PCT及PDGF三者联合对AECOPD患者合并下呼吸道感染诊断的灵敏度分别为77.42%(95%CI:58.46~89.72)、67.74%(95%CI:48.53~82.68)、70.97%(95%CI:51.76~85.11)、67.74%(95%CI:48.53~82.68),特异度分别为77.59%(95%CI:68.72~84.59)、75.00%(95%CI:65.95~82.37)、75.86%(95%CI:66.87~83.11)、98.28%(95%CI:93.30~99.71),AUC分别为0.715(95%CI:0.635~0.787)、0.820(95%CI:0.748~0.878)、0.723(95%CI:0.643~0.793)、0.902(95%CI:0.842~0.945)。结论血清LPS、PCT及PDGF三者联合检测对AECOPD合并下呼吸道感染的诊断效能较高。 展开更多
关键词 慢性阻塞性肺疾病急性期 下呼吸道感染 血清内毒素 降钙素原 血小板衍生生长因子 诊断
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血小板源性生长因子(PDGF)、血清反应因子(SRF)和波形蛋白在人脑胶质瘤中表达的临床意义 被引量:6
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作者 刘爱军 王树伟 +3 位作者 徐翔 孙立倩 洪铭岩 洪军 《复旦学报(医学版)》 CAS CSCD 北大核心 2014年第1期111-114,132,共5页
目的研究血小板源性生长因子(platelet-derived growth factor,PDGF)、血清反应因子(serum response factor,SRF)和波形蛋白(vimentin)在人脑胶质瘤中的表达及其临床意义。方法采用免疫组化染色法检测13例正常脑组织和70例人脑胶质瘤组... 目的研究血小板源性生长因子(platelet-derived growth factor,PDGF)、血清反应因子(serum response factor,SRF)和波形蛋白(vimentin)在人脑胶质瘤中的表达及其临床意义。方法采用免疫组化染色法检测13例正常脑组织和70例人脑胶质瘤组织中PDGF-B、SRF和波形蛋白的表达并分析其临床意义。结果 PDGF-B、SRF和波形蛋白在人脑胶质瘤组织中高表达,阳性表达率分别为67.14%、48.57%和81.43%,差异有统计学意义(P<0.05);三者在脑胶质瘤中的表达与患者性别、年龄、肿瘤发生部位、肿瘤大小无关(P>0.05)。随着胶质瘤恶性程度增加,三者表达逐渐上调,其中PDGF-B、波形蛋白在脑胶质瘤中的表达与肿瘤分级相关;相关性分析显示PDGFB与SRF、波形蛋白在脑胶质瘤中的表达有相关性(P<0.05)。结论PDGF-B、SRF和波形蛋白在脑胶质瘤的发生、发展中可能起到重要的调节作用,与肿瘤恶性程度具有一定的相关性。 展开更多
关键词 胶质瘤 血小板源性生长因子(pdgf) 血清反应因子(SRF) 波形蛋白 免疫组化
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The relationship between PDGF and angiogenesis in endometrial cancer
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作者 Shuang Chen Caigang Liu (Co-first author) +1 位作者 Yonglai Wang Song Gao 《The Chinese-German Journal of Clinical Oncology》 CAS 2008年第10期597-599,共3页
Objective:To investigate the expression of platelet-derived endothelial growth factor(PDGF) and its effect in angiogenesis in endometrial cancer(EC),in order to investigate the mechanism of tumorigenesis and lay a fou... Objective:To investigate the expression of platelet-derived endothelial growth factor(PDGF) and its effect in angiogenesis in endometrial cancer(EC),in order to investigate the mechanism of tumorigenesis and lay a foundation for the management of EC.Methods:We selected 40 cases with EC,20 endometrium,and 20 normal endometrium.All specimens were stained immunohistochemically for CD34 and PDGF identified immunohistochemically with specific antibodies.Results:The expression of PDGF was significantly higher in EC than normal endometrium and atypical hyperplasia of endometrium(P < 0.05),however,no significant difference was found between normal endometrium and atypical hyperplasia of endometrium(P > 0.05).The expression of PDGF was lower in well differentiated than moderately and poorly differentiated EC(P < 0.05).In cases with muscular invasion tumors,it was higher than in normal endometrium(P < 0.05).After Spearman correlation analysis,MVD was significantly influenced by PDGF,r = 0.848(P = 0.000).Conclusion:There was positive correlation between microvessel density(MVD) and PDGF in earlier stage of EC,it illustrate that PDGF may take part in angiogenesis of EC. 展开更多
关键词 endometrial cancer (EC) IMMUNOHISTOCHEMISTRY microvessel density (MVD) platelet-derived endothelial growth factor (pdgf
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Current Perspectives on Sunitinib Targeted Therapy for Tumors
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作者 Karolin Kamel Abdel-Aziz 《Journal of Cancer Therapy》 2011年第4期535-541,共7页
This review highlights therapeutic agents from recent cancer therapeutic trials showing the greatest potential for further clinical use for sunitinib in the near future. In fact, sunitinib is one of multi-tyrosine kin... This review highlights therapeutic agents from recent cancer therapeutic trials showing the greatest potential for further clinical use for sunitinib in the near future. In fact, sunitinib is one of multi-tyrosine kinase inhibitors;tyrosine kinases are enzymes, which transfer phosphate groups from ATP to the hydroxyl group of tyrosine residues on signal transduction molecules. Phosphorylation of signal transduction molecules, in turn, induces dramatic changes in tumor growth, including activation of angiogenesis and DNA synthesis. Therefore, sustain efforts have been directed for developing inhibitors for angiogenesis, which is the marginal process for tumor growth and development through targeting TKs. Almost if not all angiogenesis inhibitors target the vascular endothelial growth factor (VEGF) signaling pathway. 展开更多
关键词 platelet-derived growth factor (pdgf) Cytochrome P450 Enzyme (CYP3A4) Dose-Limiting TOXICITIES (DLTs) Hepatocyte growth factor (HGF) Tyrosine KINASES (TKs)
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针刺对四氯化碳致肝纤维化大鼠血小板衍生生长因子信号通路的影响 被引量:7
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作者 孔德松 马进 +6 位作者 陆茵 倪光夏 倪春艳 张雪娇 王爱云 陈文星 郑仕中 《针刺研究》 CAS CSCD 北大核心 2012年第2期87-92,共6页
目的:观察针刺对肝纤维化模型大鼠血小板衍生生长因子(PDGF)信号通路蛋白和mRNA表达的影响,探讨针刺抗肝纤维化的可能机制。方法:将46只SD大鼠分为空白组10只,模型组、非穴组、针刺组,每组12只。采用50%四氯化碳(CCl4)和橄榄油腹腔注射... 目的:观察针刺对肝纤维化模型大鼠血小板衍生生长因子(PDGF)信号通路蛋白和mRNA表达的影响,探讨针刺抗肝纤维化的可能机制。方法:将46只SD大鼠分为空白组10只,模型组、非穴组、针刺组,每组12只。采用50%四氯化碳(CCl4)和橄榄油腹腔注射复制肝纤维化模型。针刺"太冲""期门""肝俞",电针"足三里"。采用Western blot和Real-time PCR方法检测各组大鼠PDGF信号通路蛋白及其mRNA表达。结果:与空白组相比较,模型组大鼠血清PDGF含量及肝脏PDGF信号通路相关蛋白、mRNA表达明显升高(P<0.01,P<0.05);与模型组相比,针刺组则能够抑制PDGF-βR及其下游细胞外调节蛋白激酶(ERK)蛋白与mRNA的表达(P<0.01,P<0.05);而针刺对Jun细胞核激酶(JNK)、P 38蛋白的表达无明显调节作用(P>0.05)。非穴组与模型组相比,各指标蛋白与mRNA的表达差异均无统计学意义(P>0.05)。结论:针刺通过抑制CCl4致肝纤维化大鼠的PDGF信号通路,减少胶原沉积,促进细胞外基质的降解,从而起到治疗肝纤维化的作用。 展开更多
关键词 针刺 肝纤维化 血清血小板衍生生长因子(pdgf) 肝星状细胞 pdgf-β受体 细胞外信号调节激酶 C-JUN氨基末端激酶 P38 pdgf信号通路
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Silencing ofα-complex protein-2 reverses alcohol-and cytokine-induced fibrogenesis in hepatic stellate cells 被引量:2
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作者 Hao Liu Zhijin Chen +3 位作者 Wei Jin Ashutosh Barve Yu-Jui Yvonne Wan Kun Cheng 《Liver Research》 2017年第1期70-79,共10页
Background and aim:a-complex protein-2(aCP2)encoded by the poly(rC)binding protein 2(PCBP2)gene is responsible for the accumulation of type I collagen in fibrotic livers.In this study,we silenced the PCBP2 gene using ... Background and aim:a-complex protein-2(aCP2)encoded by the poly(rC)binding protein 2(PCBP2)gene is responsible for the accumulation of type I collagen in fibrotic livers.In this study,we silenced the PCBP2 gene using a small interfering RNA(siRNA)to reverse alcohol-and cytokine-induced profibrogenic effects on hepatic stellate cells(HSCs).Methods:Primary rat HSCs and the HSC-T6 cell line were used as fibrogenic models to mimic the initiation and perpetuation stages of fibrogenesis,respectively.We previously found that a PCBP2 siRNA,which efficiently silences expression of aCP2,reduces the stability of type I collagen mRNA.We investigated the effects of the PCBP2 siRNA on cell proliferation and migration.Expression of type I collagen in HSCs was analyzed by quantitative real-time PCR and western blotting.In addition,we evaluated the effects of the PCBP2 siRNA on apoptosis and the cell cycle.Results:PCBP2 siRNA reversed multiple alcohol-and cytokine-induced profibrogenic effects on primary rat HSCs and HSC-T6 cells.The PCBP2 siRNA also reversed alcohol-and cytokine-induced accumulation of type I collagen as well as cell proliferation and migration.Moreover,the combination of LY2109761,a transforming growth factor-b1 inhibitor,and the PCBP2 siRNA exerted a synergistic inhibitive effect on the accumulation of type I collagen in HSCs.Conclusions:Silencing of PCBP2 using siRNA could be a potential therapeutic strategy for alcoholic liver fibrosis. 展开更多
关键词 Hepatic stellate cells Primary HSC MYOFIBROBLAST Liver fibrosis Poly(rC)binding protein(PCBP)2 Transforming growth factor(TGF)-b platelet-derived growth factor(pdgf) Epidermal growth factor(EGF) LY2a09761 Migration
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Sunitinib mesylate inhibits proliferation of human colonic stromal fibroblasts in vitro and in vivoSunitinib mesylate inhibits proliferation of human colonic stromal fibroblasts in vitro and in vivo
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作者 Zhan-huai WANG Qiong LI +8 位作者 Shu-qin RUAN Qian XIAO Yue LIU Ye-ting HU Li-feng HU Hai-yan CHEN Shu ZHENG Su-zhan ZHANG Ke-feng DING 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2014年第8期701-712,共12页
Objective: Cancer stromal fibroblasts are important members of the cancer microenvironment. In this study, we determined the effect of sunitinib, a small molecule tyrosine kinase inhibitor, on the primary human colon... Objective: Cancer stromal fibroblasts are important members of the cancer microenvironment. In this study, we determined the effect of sunitinib, a small molecule tyrosine kinase inhibitor, on the primary human colonic fibroblasts. Methods: Cell cycle analysis and cell proliferation assays were performed to evaluate the inhibitory effect of sunitinib in vitro. Western-blot analysis was performed to evaluate variations in the levels of phosphorylated plateletderived growth factor receptor β (PDGFR-β), Akt, and ERK proteins. Co-injection of SW620 cells and colonic fibreblasts in nude mice was employed to test anti-growth efficacy in vivo. Results: Sunitinib was found to effectively inhibit the growth of primary colonic fibroblasts. Low-dose sunitinib blocked the PDGF-BB-induced cell proliferation and PDGFR-β signaling. Co-injection of SW620 cells and colonic fibroblasts in nude mice generated greater tumor volumes than single injection of SW620 cells. Sunitinib treatment inhibited the SW620 cell+colonic fibroblast tumor growth more effectively than treatment of 5-fluorouracil. Conclusions: Sunitinib mesylate inhibited the proliferation of primary human colonic fibroblasts through target-inhibited PDGFR signaling in vitro and in vivo. 展开更多
关键词 Colon cancer Cancer-associated fibroblasts Sunitinib mesylate platelet-derived growth factor (pdgf pdgf receptor (pdgfR)
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