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人外周血

人外周血的相关文献在1989年到2022年内共计241篇,主要集中在基础医学、临床医学、内科学 等领域,其中期刊论文135篇、会议论文4篇、专利文献258377篇;相关期刊101种,包括中国生物学文摘、四川生理科学杂志、中国病理生理杂志等; 相关会议4种,包括第十届全国环境与职业医学研究生学术研讨会、第八届全国中西医结合实验医学研讨会、第二届全国反应堆物理与核材料学术研讨会等;人外周血的相关文献由764位作者贡献,包括许恒毅、刘青杰、孙宝贵等。

人外周血—发文量

期刊论文>

论文:135 占比:0.05%

会议论文>

论文:4 占比:0.00%

专利文献>

论文:258377 占比:99.95%

总计:258516篇

人外周血—发文趋势图

人外周血

-研究学者

  • 许恒毅
  • 刘青杰
  • 孙宝贵
  • 封江彬
  • 戴秋艳
  • 熊勇华
  • 王伟
  • 苏旭
  • 阮健磊
  • 陆雪
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 任敏; 张先恩; 崔宗强; 张吉斌
    • 摘要: 通过合成lifeact序列,将其克隆到pEGFP-C1载体上,构建了pEGFP-C1-Lifeact质粒,转染原代CD4+T细胞,实现对CD4+T细胞F-actin的荧光标记,结合超分辨3D-SIM荧光成像技术,研究人外周血CD4+T细胞F-actin的精细结构,并对其动力学过程进行连续观察。结果表明,CD4+T细胞F-actin分布在细胞膜周围,处于解聚和聚合的动态平衡状态,与普通荧光显微镜相比,超分辩SIM成像F-actin结构更加清晰,分辨率提高2~4倍。
    • 刘建功; 党旭红; 张忠新; 杨彪; 段志凯
    • 摘要: 目的:探讨60 Co γ射线对人离体外周血 CDKN1A 基因表达水平的影响。方法收集3名健康人周围血,采用60 Co γ射线照射,照射剂量率为0.313 Gy/min 。提取血液总 RNA ,用实时荧光定量 PCR 方法检测 CDKN1A 基因的表达水平。结果0~2 Gy 剂量范围内,CDKN1A 的 mRNA 相对表达水平随照射剂量增加而呈上调趋势,拟合的回归方程为:Y =0.8465+1.1015D(R =0.93,p <0.01),Y =0.6273+3.0883D -0.7485D2(R =0.96,p <0.05)。结论电离辐射可诱发 CDKN1A 基因相对表达水平发生改变,并且随照射剂量增加而增加,其中直线方程的稳定性还有待进一步验证。%To explore the effect of ionizing radiation on CDKN1A gene expression in human peripheral blood , blood samples were exposed to 60 Co γ-rays at different doses .The resulted CDKN1A mRNA expression change was observed by real time PCR .For a dose of 0 ~ 2 Gy ,the relationship between the CDKN1A-dose represents certain line correlation .A linear regression equation(Y = 0 .8465 + 1 .1015D ,R = 0 .93 ,p < 0 .01) and cur-vilinear regression equation (Y = 0 .6273 + 3 .0883D - 0 .7485D 2 ,R = 0 .96 ,p < 0 .05) has been obtained using regression analysis methods .γ-ray can induced CDKN1A gene expression changed and increase dose-de-pendently ,but the stability of regression equation should be tested further .
    • 王一
    • 摘要: 目的:对人外周血IL-35水平与乙肝疫苗免疫效果的相关性进行讨论,了解影响乙肝疫苗作用的因素.方法:选择我院215例接种乙肝疫苗的患者,了解患者接种乙肝疫苗后的应答反应,同时检测患者外周血清中IL-35水平值,了解两者相关性.结果:215例患者中有109例患者免疫应答性强,占比例的50.7%;69例患者免疫应答强度一般,占比例的32.2%;免疫弱应答者15例,占比例的6.9%;免疫无应答者22例,占比例的10.2%.免疫强应答组与免疫应答强度一般组的外周单核细胞学IL-35水平要明显高于免疫弱应答组合与免疫无应答组,且比较存在明显差异,P<0.05;免疫强应答组外周单核细胞学IL-35水平要高于免疫应答强度一般组,但比较无明显差异;免疫弱应答组的外周单核细胞学IL-35水平与免疫无应答组比较也无明显差异,P>0.05.结论:IL-35水平高低与乙肝疫苗的应答反应程度有着一定的相关性.
    • 摘要: 据2015年6月8日《中国科学报》报道,中科院上海巴斯德研究所王建华课题组发现人粒细胞具有促进艾滋病HIV-1感染传播的作用。相关成果在线发表于《病毒学杂志》。课题组从健康人外周血纯化出嗜酸、嗜碱和中性三种粒细胞,研究了其与HIV-1的相互作用,发现三种粒细胞虽然都不能被HIV-1直接感染,却均能捕捉HIV-1,并把所捕捉的感染性病毒颗粒传递给CD4+T细胞,增强病毒的传播感染。
    • 龙小丽; 刘桂松; 肖青青; 陈洁梅
    • 摘要: A simultaneous quantitative analysis method for the thalassemia screening indicators mean corpuscular hemoglobin (MCH) ,mean corpuscular volume (MCV) ,and hemoglobin (Hb) was developed with Fourier transform infrared (FTIR) spec-trometers and attenuated total reflection (ATR) combined with partial least squares (PLS ) .A total of 380 human peripheral blood samples were collected ,which were composed of 180 positive samples and 200 negative samples according to the criteria of hematological indicator screening for thalassemia .One hundred fifty samples (64 negative ,86 positive) were randomly selected from all samples as the validation set ,the remaining 230 samples (136 negative ,94 positive) were used as modeling samples ;and then the modeling set was further subdivided into calibration set (68 negative ,47 positive ,and 115 in total) and prediction set (68 negative ,47 positive ,and 115 in total) for 200 times .Comparison of experimental results show that the prediction effect of PLS models in mid-infrared (MIR) fingerprint region (1 600~900 cm -1 ) was significantly better those of PLS models in the full scanning region (4 000~600 cm-1 ) ,and model complexity is significantly reduced .Based on PLS model in MIR fingerprint region ,the optimal numbers of PLS factors for MCH ,MCV and Hb were 10 ,10 and 6 ,respectively ,and the root mean square error (M_SEPAve ) and the correlation coefficient (M_RP ,Ave ) of prediction in the modeling set were 2.19 pg ,0.902 for MCH , 5.13 fL ,0.898 for MCV and 8.0 g · L -1 ,0.922 for Hb ,respectively .The root mean square error (V_SEP) and the correlation coefficient (V_RP ) of prediction in the validation set were 2.22 pg ,0.900 for MCH ,5.38 fL ,0.895 for MCV and 7.7 g · L -1 , 0.929 for Hb ,respectively .The sensitivity and specificity for thalassemia screening achieved 100.0% and 95.3% ,respectively . Conclusion:FTIR/ATR spectroscopy combined with PLS method could provide a new reagent-free and rapid technique for thalassemia screening for large populations .%利用傅里叶变换红外光谱(FTIR)和衰减全反射(ATR)结合偏最小二乘(PLS)回归,建立地中海贫血(地贫)筛查指标平均红细胞血红蛋白含量(MCH)、平均红细胞体积(MCV)和总血红蛋白(Hb)的同时定量分析方法。收集人外周血样品380个,根据地贫血液学指标筛查标准,地贫阳性180个、阴性200个。从全体样品中随机选取150个为检验集(阴性64,阳性86),余下230个为建模集(阴性136、阳性94);再将建模集随机划分为定标集(阴性68、阳性47,共计115)、预测集(阴性68、阳性47,共计115),共200次。实验比较的结果表明,中红外指纹区(1600~900 cm-1)PLS模型的预测效果显著优于全扫描谱区(4000~600 cm -1)PLS模型,并且模型复杂性明显降低。基于中红外指纹区PLS模型,MCH ,MCV ,Hb最优PLS因子个数分别为10,10,6;建模预测均方根误差(M_SEPAve )分别为2.19 pg ,5.13 fL ,8.0 g · L -1;建模预测相关系数(M_RP ,Ave )分别为0.902,0.898,0.922;检验预测均方根误差(V_SEP)分别为2.22 pg ,5.38 fL ,7.7 g · L -1;检验预测相关系数(V_RP )分别为0.900,0.895,0.929;地贫筛查灵敏度、特异性分别达到100.0%和95.3%。结论:FTIR/ATR光谱结合PLS方法可以提供一种无需试剂、快速简便的大人群地贫筛查新技术。
    • 叶伟; 王利利; 殷丹丹; 周镇先; 赵伟
    • 摘要: 目的:探讨自噬小体疫苗DRibbles是否可用于检测人外周血中抗原特异性T细胞.方法:制备表达CEF蛋白的HEK293T细胞及表达CMV pp65蛋白的LT3细胞,从中提取DRibbles,用HEK293T CEFDRibbles及LT3 pp65 DRibbles刺激人外周血单个核细胞(PBMCs),通过流式细胞术检测分泌IFN-γ的T细胞占总T细胞的百分比.结果:与阴性对照HEK293T GFP DRibbles相比,HEK293T CEF DRibbles刺激组分泌IFN-γ+的CD8+T细胞比例显著增高(3.38% vs0.05%),分泌IFN-γ+的CD4+T细胞比例亦显著增高(0.46% vs0.06%);LT3 pp65 DRibbles刺激组分泌IFN-γ+的CD8+T细胞平均百分数为0.21%,阴性对照LT3 GFP DRibbles刺激组仅为0.05%(P<0.01);与LT3pp65细胞裂解产物相比,LT3 pp65 DRibbles能诱导更多的CD8+T细胞分泌IFN-γ(P <0.05),在诱导CD4+T细胞分泌IFN-γ方面,DRibbles与细胞裂解产物类似(P>0.05).结论:包含病毒抗原的DRibbles能够有效激活人PBMCs中的病毒抗原特异性CD8+T细胞及CD4+T细胞.
    • 乔威; 冉峰; 刘长建
    • 摘要: BACKGROUND:Endothelial progenitor cel s, known as the precursor cel s of mature endothelial cel s, have the function of neovascularization and neoendothelialization. Therefore, endothelial progenitor cel s have potential applicability in many fields. Endothelial progenitor cel s can be isolated and cultured from different resources with different methods, but the biological properties and identification of endothelial progenitor cel s stil have controversies. OBJECTIVE:To explore the methods of isolation and culture of endothelial progenitor cel s from the human peripheral blood and to identify the biological features of endothelial progenitor cel s. METHODS:Mononuclear cel s were isolated from the human peripheral blood using density gradient centrifugation, and the cel s were resuspended in endothelial basal medium-2 supplemented with the EGM-2-MV-SingleQuots. Then, the cel s were inoculated in human fibronectin-coated culture flasks and cultured in EBM-2MV medium. The morphology of endothelial progenitor cel s was observed. The proliferation potential and surface markers of endothelial progenitor cel s were characterized careful y. Furthermore, the functional properties such as nitric oxide release and tube formation on Matrigel were also evaluated. RESULTS AND CONCLUSION:While adherent cel s maintained, spindle-shaped cel s formed a cel cluster after 6-7 days. Then, adherent cel s developed to endothelial progenitor cel s with a cobblestone appearance after 2-3 weeks. The endothelial progenitor cel s were confluent with an outgrowth appearance. Endothelial progenitor cel s had a higher proliferation potential compared with human aortic endothelial cel s under the same culture condition. Endothelial progenitor cel s expressed CD31, CD34, CD144 and KDR, displaying an obvious endothelial phenotype. Endothelial progenitor cel s were also found to uptake DiL-acLDL and exhibit lectin binding capability. Furthermore, endothelial progenitor cel s were able to form capil ary tubes on Matrigel and had the ability to release nitric oxide. Therefore, endothelial progenitor cel s can be obtained from the human peripheral blood by density gradient centrifugation and adherent culture. A combining method for the identification of endothelial progenitor cel s should be recommended.%背景:内皮祖细胞是成熟内皮细胞的前体细胞,具有新生血管和新生内皮化作用,在许多方面均有广泛应用前景,但其生物学特征及鉴定方法仍存争议。  目的:探索从人外周血分离培养内皮祖细胞的方法并鉴定其生物学特征。  方法:外周采血后应用密度梯度离心法分离成人外周血单核细胞,在内皮细胞全培养基重悬后接种于纤维连接蛋白包被的培养瓶中,体外培养扩增获取人内皮祖细胞并观察其形态变化、生长增殖潜能及细胞表面抗原表达情况,并通过细胞一氧化氮分泌功能测定及体外血管形成实验检测其功能学特征。  结果与结论:体外诱导培养后,六七天形成纺锤样细胞簇,两三周黏附细胞发育形成鹅卵石样外观细胞,逐渐融合呈外生性生长。在相同培养条件下,与人主动脉内皮细胞相比人内皮祖细胞具有高的增殖潜能。人内皮祖细胞表达CD31、CD34、CD144、KDR,表现为典型内皮细胞系表型,此外细胞可摄取ac-LDL并结合UEA-Ⅰ。在功能上内皮祖细胞可分泌一氧化氮并可在Matrigel中形成管腔样结构。提示通过密度梯度离心法分离人外周血单核细胞体外黏附诱导培养可获取人外周血内皮祖细胞;细胞形态、增殖能力、生物表型特征结合细胞功能学的综合性鉴定方法用于内皮祖细胞的鉴定具有一定意义。
    • 张鹏; 任雨笙; 梁春; 冷冰; 曹智勇; 吴宗贵
    • 摘要: 背景:传统方法培养人外周血来源内皮祖细胞操作复杂,费用大,细胞获得率较低。目的:利用自体血清培养人外周血来源内皮祖细胞,并鉴定其功能。方法:采用密度梯度离心法从人外周血分离得到单个核细胞,休外培养分化为内皮祖细胞。按培养恭条件小刚分为EGM-2MV组、添加自体血清组(M199+体积分数10%自体血清+胰岛素样生长因子)、添加胎牛血清组(M199+体积分数10%胎牛血清+血管内皮细胞生长因子+碱性成纤维细胞生长因子+胰岛素样生长因子+表皮生长因子)。观察内皮祖细胞增殖、迁移能力;采用细胞形态观察、双荧光染色法及流式细胞仪等技术对培养的内皮祖细胞进行鉴定。结果与结论:培养第7天,EBM-2MV组和添加自体血清组细胞增殖能力和迁移率都优于添加胎牛血清组(P〈0.05)。每组细胞经结合Dil标记的乙酰化低密度脂蛋白和异硫氰酸荧光素标记的荆豆凝集素双色荧光染色鉴定后双阳性牢,80%,免疫细胞化学检测显示每组细胞CD133,CD34和KDR的表达均为阳性。证实在M199培养液中添加自体血清是一种简单、高效的培养内皮祖细胞方法。
    • 张鹏; 任雨笙; 梁春; 冷冰; 曹智勇; 吴宗贵
    • 摘要: BACKGROUND: Traditional method for culture of endothelial progenitor cells from human peripheral blood is complex to operate, costs high, and acquires a small number of cells.rnOBJECTIVE: To culture endothelial progenitor cells from human peripheral blood using autologous serum and identify their functions.rnMETHODS: Peripheral blood was collected from volunteers. Mononuclear cells were separated by density centrifugation and were induced to differentiate into endothelial progenitor cells in vitro. The influences of different culture conditions (EGM-2MV, M199+10% autologous serum+insulin like growth factor, M199+10% fetal bovine serum+vascular endothelial growth factor+basic fibroblast growth factor+insulin-like growth factor+epidermal growth factor) on the proliferation and migration of endothelial progenitor cells were observed. The cultured endothelial progenitor cells were identified by cell morphology observation, fluorescent staining and flow cytometry.rnRESULTS AND CONCLUSION: Endothelial progenitor cells with higher proliferation and migration ability were obtained under EGM-2MV and M199+10% autologous serum + insulin-like growth factor conditions (P 80%,免疫细胞化学检测显示每组细胞CD133,CD34和KDR的表达均为阳性.证实在M199培养液中添加自体血清是一种简单、高效的培养内皮祖细胞方法.
    • 马明瑛; 靳志平; 王伟; 郭智; 吴彬; 谭晓华
    • 摘要: 背景:如何简易高效分离纯化人外周血单核细胞并刺激成熟为树突状细胞,未见标准化操作流程.目的:观察明胶法分离外周血单核细胞的效率以及将分离出的单核细胞刺激成熟为树突状细胞的表型特征,并与普通塑料黏附法对比.方法:使用人淋巴细胞分离液分离人外周血得到单个核细胞,根据培养瓶是否进行明胶包被分为明胶包被组和普通塑料组.均分单个核细胞,按组别分离获得单核细胞并诱导刺激成熟为树突状细胞.计数各组所得单核细胞数,使用流式细胞仪检测2 组单核细胞的CD14 阳性率、T、B 淋巴细胞污染率、树突状细胞非成熟期和成熟期CD1a,CD83 的表达情况,锥虫蓝拒染法计算细胞活率,观察对比2 组血小板污染情况.结果与结论:明胶包被组单核细胞数及CD14 阳性率显著高于普通塑料组(P 0.05).明胶包被组血小板污染率低于普通塑料组.提示明胶法可以简单高效分离出单核细胞并成功刺激成熟为树突状细胞.%BACKGROUND: There have been no standard procedures regarding how to simply and efficiently separate and purify human peripheral blood monocytes and stimulate them into dendritic cells. OBJECTIVE: To investigate the efficacy of purification of human peripheral blood monocytes on gelatin-coated surfaces, analyze the phenotype of dendritic cells generated by these monocytes, and make a comparison with conventional plastic adhesion method. METHODS: Human peripheral blood mononuclear cells were harvested by Ficoll-Hypaque gradient centrifugation. Gelatin group and common plastic group were designated according to coating flasks with or without gelatin. Monocytes were harvested from each group and then were stimulated into dendritic cells. The number of monoctyes, CD14 positive rate of monocytes, contaminated T, B lymphocytes, the expression of CD1a, CD83 on immature and mature dendritic cells were determined. Cell viability was determined by trypan blue staining. Platelet contamination was compared between gelatin and common plastic groups. RESULTS AND CONCLUSION: The number of monocytes and CD14 positive rate were significantly higher in the gelatin group than in the common plastic group (P 0.05). Platelet contamination rate was signif I cantly lower in the gelatin group than in the common plastic group. Gelatin-coated surfaces can effectively and simply isolate monocytes and successfully stimulate them into mature dendritic cells.
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