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放射免疫测定

放射免疫测定的相关文献在1978年到2021年内共计1605篇,主要集中在内科学、肿瘤学、临床医学 等领域,其中期刊论文1474篇、会议论文130篇、专利文献140340篇;相关期刊530种,包括国际放射医学核医学杂志、放射免疫学杂志、蚌埠医学院学报等; 相关会议76种,包括全国铁路第四届核医学学术会议、第5届全国液体闪烁探测技术学术会议、全国第五届放射免疫分析学术会议等;放射免疫测定的相关文献由3638位作者贡献,包括等、李振甲、杨永青等。

放射免疫测定—发文量

期刊论文>

论文:1474 占比:1.04%

会议论文>

论文:130 占比:0.09%

专利文献>

论文:140340 占比:98.87%

总计:141944篇

放射免疫测定—发文趋势图

放射免疫测定

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  • 李振甲
  • 杨永青
  • 杨立廷
  • 陈铁楼
  • 许才绂
  • 黄裕新
  • 吴织芬
  • 周以钧
  • 尹石华
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 王雅欣; 郭姗姗; 高英杰; 图娅; 崔晓兰
    • 摘要: 目的:研究抗抑郁症中药新药-参味宁郁片对慢性应激抑郁模型大鼠及小鼠悬尾抑郁模型的抗抑郁作用.方法:大鼠慢性应激模型:除正常组外,其余各组给予相应的慢性应激,并在造模前1 h灌胃给药,共持续21 d.实验前后通过体质量变化、糖水实验、自发活动开场实验测试,观察各组大鼠相应指标的评分变化.采用放射免疫测定法检测相关激素水平.小鼠悬尾抑郁模型:连续给药7d后用小鼠自主活动记录仪记录活动次数,再将小鼠悬尾后记录小鼠不动时间,探究各给药组对小鼠悬尾不动时间的影响.结果:慢性应激抑郁模型:在造模21 d后,与正常组比较,模型组大鼠在体质量、糖水偏好指数、水平及垂直运动评分等方面均显著降低(P<0.05),参味宁郁片低剂量组在糖水实验、水平及垂直运动评分与模型组比较差异均有统计学意义(均P<0.05).此外,参味宁郁片3个剂量组均可有效降低慢性应激模型大鼠CRF的含量,低剂量组可显著降低模型大鼠的ACTH水平(P<0.05).小鼠悬尾抑郁模型:各给药组小鼠悬尾后的不动时间与模型组比较差异均有统计学意义(均P<0.05).结论:抗抑郁症中药新药-参味宁郁片对慢性应激抑郁模型及小鼠悬尾抑郁模型均具有一定的抗抑郁作用.
    • 周洁; 李红娟; 沈青玉; 陈军; 陈晓文; 胡亚男; 杨爽
    • 摘要: 目的:探讨化学发光免疫分析在临床检验中的应用价值.方法:纳入我院收治的疑似甲状腺肿瘤患者作为研究对象,共300例,纳入时间2019.3~2020.3,所有患者均接受化学发光免疫分析和放射免疫测定,观察和对比两种检验分析方法的应用价值.结果:化学发光免疫分析特异性、灵敏性和准确率分别为96.17%、94.87%、96%,放射免疫测定方法的特异性、灵敏性和准确率分别为83.52%、69.23%、81.67%,化学发光免疫分析相对更高.甲状腺球蛋白水平化学发光免疫分析组为(695.4±61.3)μg/L,放射免疫测定组为(629.8±63.2)μg/L,化学发光免疫分析组更高,P<0.05.结论:综上可得:临床检验中化学发光免疫分析效果较好,其具有较高的特异性、灵敏性、准确率,以及具有操作方便快捷的优点,推荐应用.
    • 高鸿敏1; 杜玉国1; 高进辽1
    • 摘要: 目的检测尾加压素Ⅱ(UⅡ)在非小细胞肺癌(NSCLC)患者手术切除组织及血浆中的表达情况。方法收集2009年1月—2011年1月手术切除的75例NSCLC组织及33例肺炎性假瘤组织,分析UⅡ表达与NSCLC病理类型及TNM临床分期的相关性。测定75例NSCLC、38例肺良性病变、30例健康人血浆中UⅡ含量,分析UⅡ与NSCLC病理类型及有无远处转移的相关性。结果UⅡ在NSCLC血浆中的表达水平高于肺良性病变组和健康对照组,且UⅡ表达水平与病理类型及有无远处转移有一定的相关性(P<0.05,P<0.01)。UⅡ广泛存在于NSCLC尤其是腺癌细胞的细胞质中,且UⅡ表达与病理类型及TNM临床分期密切相关(P<0.05)。UⅡ在血浆和组织中的表达趋势基本一致。结论UⅡ在NSCLC尤其是腺癌的侵袭性生长和转移的恶性潜能明显增加,可以作为监测肺腺癌恶性生长的一个分子标志物。
    • 高鸿敏; 杜玉国; 高进辽
    • 摘要: Objective To investigate Urotensin-Ⅱ( U Ⅱ) expressions in plasma and lung cancer tissues by sur-gical resection of patients with non-small cell lung cancer ( NSCLC) . Methods A total of 75 NSCLC tissues and 33 in-flammatory pseudotumour tissues in lung by surgical resection during January 2009 and January 2011 were collected, and correlations between U Ⅱ expression with NSCLC pathological types and TNM stage were analyzed. U Ⅱ contents in 75 NSCLC tissues, 38 benign lesions and 30 healthy plasma samples were detected, and correlations between U Ⅱ contents with NSCLC pathological types and whether having distant metastasis or not were also analyzed. Results U Ⅱ expression level in plasma of NSCLC was significantly higher than those in control and benign lesions groups, and plasma U Ⅱ level had a certain correlations with pathological types and distant metastasis (P<0. 05, P<0. 01). UⅡgenerally existed in cytoplasm of NSCLC cells especially in adenocarcinoma cells. There were closely correlations between UⅡexpression with pathological types and TNM stage (P<0. 05). UⅡ expressions were basically the same trend in plasma and cancer tis-sues of NSCLC patients. Conclusion Malignant abilities of U Ⅱ growth and metastasis in NSCLC cells increase signifi-cantly, and therefore it can be used as a molecular maker to monitoring malignant growth of lung adenocarcinoma.%目的 检测尾加压素Ⅱ(UⅡ)在非小细胞肺癌(NSCLC)患者手术切除组织及血浆中的表达情况.方法 收集2009年1月—2011年1月手术切除的75例NSCLC组织及33例肺炎性假瘤组织,分析UⅡ表达与NSCLC病理类型及TNM临床分期的相关性.测定75例NSCLC、38例肺良性病变、30例健康人血浆中UⅡ含量,分析UⅡ与NSCLC病理类型及有无远处转移的相关性.结果 UⅡ在NSCLC血浆中的表达水平高于肺良性病变组和健康对照组,且UⅡ表达水平与病理类型及有无远处转移有一定的相关性(P<0.05,P<0.01).UⅡ广泛存在于NSCLC尤其是腺癌细胞的细胞质中,且UⅡ表达与病理类型及TNM临床分期密切相关(P<0.05).UⅡ在血浆和组织中的表达趋势基本一致.结论 UⅡ在NSCLC尤其是腺癌的侵袭性生长和转移的恶性潜能明显增加,可以作为监测肺腺癌恶性生长的一个分子标志物.
    • 王会中; 徐蓉
    • 摘要: Quantitative immunoassay technique is the common method of quantitative detection in clinical laboratory. Several important branches of quantitative immunoassay were formed by changing the tracer or the Antigen-antibody complex separation method, including radioimmunoassay, fluorescent immunoassay, enzyme immunoassay, chemiluminescence, colloidal gold, immuno-turbidimetric analysis and homogeneous immunoassay. Different immunoassay techniques have their own characteristics, also apply to different detecting conditions in clinic. This paper reviewed several common kinds of quantitative immunoassay technology, and discussed both their advantages and disadvantages, which provide reference for the application and development of clinical testing technology.%定量免疫分析技术是临床实验室常用的定量检测方法.依据示踪物以及分离方式的改变,定量免疫分析技术主要形成了放射免疫、荧光免疫、酶免疫、化学发光、胶体金、免疫比浊和均相免疫分析等几个重要分支.不同的免疫分析技术有着各自的特点,适用于不同的临床检测应用.本文分析了常规的几种定量免疫分析技术,并对各种方法的优缺点和应用价值进行了评价,以期能为临床检验技术的应用及发展提供参考.
    • 李尊波; 舒博学; 党根喜; 李柱一; 郭俊; 沈定国; 樊新华; 刘建军; 李宏增; 熊葶; 张慜; 朱可
    • 摘要: 目的 探讨乙酰胆碱受体抗体(AChR-Ab)与重症肌无力(MG)临床特征的相关性.方法 采用放射免疫法检测11 5例MG患者及92例对照组(非MG神经系统疾病患者42例,健康体检者50名)血清AChRAb浓度,应用临床绝对评分记录MG患者病情严重程度.分析各组血清AChR Ab浓度的差异,以及AChR Ab浓度与MG患者临床特征的相关性.采用ROC工作特征曲线探讨AChR Ab诊断MG的敏感度和特异度.结果 MG患者血清AChR Ab浓度中位数(四分位数间距,下同)为3.45(39.38)nmol/L,较非MG神经系统疾病患者[0(0) nmol/L]和健康体检者[0 (0) nmol/L]增高(P<0.01).全身型MG(GMG)患者AChR-Ab浓度[25.45(46.14)nmol/L]较眼肌型MG(OMG)患者[0.58(3.56)nmol/L]增高(P<0.01).用ROC曲线法分析显示,以血清AChR Ab浓度≥0.50 nmol/L作为诊断MG界值时灵敏度为72.17%,特异度为100%,曲线下面积(AUC) =0.895(95%CI:0.849~0.941).AChR-Ab浓度与发病年龄、病程及改良Osserman分型呈正相关(r=0.220,P<0.05;r=0.184,P<0.05;r=0.382,P<0.01),但相关性较弱(均r<0.5),与临床绝对记分无相关性(r=0.147,P>0.05).结论 用放射免疫法检测血清AChR-Ab浓度诊断MG的灵敏度和特异度均高,有助于减少MG的漏诊率及误诊率,值得临床推广.%Objective To investigate the clinical correlations between the acetylcholine receptor antibody (AChR-Ab) level and myasthenia gravis (MG).Methods Radioimmunoassay is used to detect serum AChR-Ab level of 115 MG patients and 92 control (42 patients with non MG neurological disease and 50 healthy subjects).Clinical absolute score was used to record the severity of MG.Results The data was expressed as median (interquartile range).In patients with MG,the serum AChR-Ab titer was 3.45 (39.38) nmol/L,which was higher than non MG neurological patients [0 (0) nmol/L] and the healthy subjects [0 (0) nmol/L] (P< 0.01).In generalised type MG (GMG),the AChR-Ab titer [25.45 (46.14) nmol/L] was higher than oculartype MG (OMG) patients [0.58 (3.56) nmol/L] (P<0.01).Obtained by ROC curve method:using the serum AChR-Ab titer ≥0.50 nmol/L as the diagnostic cutoff value,sensitivity was 72.17%,and specificity was 100%,the area under the curve was 0.895 (95% CI:0.849-0.941).AChR-Ab titer was associated with age of onset,disease duration and modified Osserman type (r=0.220,P<0.05;r=0.184,P<0.05;r=0.382,P<0.01),whereas the clinical absolute scores was not correlated (r=0.147,P>0.05).Conclusions With radioimmunoassay method to detect the serum AChR-Ab titer,the sensitivity and specificity of the diagnosis of MG are both high,thus this technique helps to reduce misdiagnosis of MG,to distinguish OMG from GMG and predict the OMG transformation to GMG.
    • 张海嫦; 朱家丽; 万景亚; 冯学民; 秦岚; 沈婕
    • 摘要: Objective To investigate the difference between electrochemiluminescent immunoassay (ECLIA) and radioimmunoassay (RIA) in the detection of serum cortisol.Methods A total of 188 patients were selected from healthy outpatients and inpatients.The serum cortisol of the patients and quality control serum cortisol were detected by ECLIA and RIA.The detection accuracy of the methods in the two batches and the coefficient of variation (CV) of within-batch and between-batch were calculated.To evaluate the precision of the test,quality control serum was added to low,medium,and high concentrations of serum cortisol for the evaluation of recovery rate and detection accuracy.The correlation between results was analyzed by regression.Results The sensitivity and specificity of the ECLIA method was higher than those of the RIA method.The CV of the ECLIA method was also lower than that of the RIA method,and the recovery rate of the ECLIA method was higher than that of the RIA method.The two methods showed good correlation and highly correlated results (r=0.991,P<0.01).Conclusions The two methods have their own advantages in the detection of serum cortisol.The degree of automation of ECLIA is high,whereas the RIA method is mature and inexpensive.Although ECLIA is the current and future development trend,RIA retains a certain advantage in terms of sensitivity and specificity.The two methods provide different reference intervals.RIA remains an indispensable method for clinical cortisol testing.%目的 采用电化学发光免疫(ECLIA)法与放射免疫(RIA)法测定血清皮质醇水平,对其结果进行对比分析.方法 采用简单随机抽样法抽取我院健康体检者、门诊和住院患者共188例血清样本,利用ECLIA法和RIA法同时进行检测并进行统计学分析.将质控血清进行两两对比分析,计算两种方法批内、批间差异系数(CV),评价其精确性;将质控血清加入低、中、高(100.2、201.9、310.7 nmol/L)已知浓度的皮质醇血清中,测定回收率.对样本测定结果的相关性作回归性分析.结果 ECLIA法检测血清皮质醇表达水平的灵敏度和特异度均高于RIA法.ECLIA法检测的批内与批间CV均低于RIA法,但两种方法回收率相当.两种方法检测结果具有高度相关性(r=0.991,P< 0.01).结论 在检测血清皮质醇水平上,两种方法各有优势,ECLIA法自动化程度高,RIA法技术成熟、价格低廉.随着技术的发展,ECLIA法要更具优势,但ECLIA法在检测皮质醇方面是否可以完全替代RIA法,还有待进一步的探讨.
    • 李瑞杰; 冀绪; 白杏强; 张晓双; 司宁宁
    • 摘要: Objective To observe the therapeutic effects of Qufeng-qingre-dingtong decoction in migraine rats and its possible mechanism.Methods 72 SD rats were randomly divided into six groups, that the blank group, model group, Zhengtian pill group, and high, middle, low dose of Qufeng -qingre -dingtong decoction group. Twelve SD rats in each groups, and all rats received corresponding drug for 7 d by gavage.Besides blank group, rats in other five groups were constructed in migraine model by nitroglycerin after the pain-threshold measured by hot plate test.The contents of serum endothelin-1 (ET-1) and 5-hydroxytryptamine (5-HT) were detected by ra-dioimmunoassay.Results Compared with model group over the same period, the pain-threshold in high, middle dose of Qufeng-qingre-dingtong decoction group were obviously increased at 60, 120, 180 min (P0.05).Compared with high dose of Qufeng-qingre-dingtong decoction group, there was statistical significance on ET-1 and 5-HT in middle dose group (P0.05).Conclusion Qufeng-qingre-dingtong decoction has significant analgesic effect, can regulate the contents of serum 5-HT, ET-1 in migraine rats, it could be the one of the analgesia mechanism.%目的:观察祛风清热定痛方对偏头痛大鼠的镇痛效应及可能机制。方法将72只SD大鼠随机分为6组,即空白组、模型组、正天丸组和祛风清热定痛方大、中、小剂量组,每组各12只,分别予相应药液灌胃给药,连续7d。除空白组外,其余5组大鼠通过热板法测定痛阈值,然后以硝酸甘油制备偏头痛大鼠模型,放免法检测各组大鼠血浆中内皮素1(ET-1)、5-羟色胺(5-HT)含量。结果与模型组同期比较,祛风清热定痛方大、中剂量组60、120、180 min痛阈值均显著提高(P<0.05),祛风清热定痛方小剂量组、正天丸组120、180 min痛阈值均显著提高(P<0.05)。与模型组比较,祛风清热定痛方大、中、小剂量组及正天丸组ET-1含量均明显降低,5-HT含量均明显增加,比较差异有统计学意义( P<0.05)。与正天丸组比较,祛风清热定痛方大、中剂量组ET-1含量明显降低,5-HT含量明显增加,差异有统计学意义(P<0.05),小剂量组ET-1和5-HT含量无统计学意义( P>0.05)。与祛风清热定痛方大剂量组相比,祛风清热定痛方中剂量组ET-1和5-HT含量比较差异有统计学意义(P<0.05),小剂量组无统计学意义(P>0.05)。结论祛风清热定痛方具有明显的镇痛作用,其调节偏头痛模型大鼠血浆5-HT、ET-1含量可能是治疗偏头痛的机制之一。
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