惡性瘧與間日瘧雙標記時間分辨免疫熒光檢測試劑盒的研制
本文關(guān)鍵詞:惡性瘧與間日瘧雙標記時間分辨免疫熒光檢測試劑盒的研制 出處:《中國病原生物學雜志》2017年03期 論文類型:期刊論文
更多相關(guān)文章: 惡性瘧 間日瘧 乳酸脫氫酶 時間分辨熒光檢測分析
【摘要】:目的采用雙標記時間分辨熒光免疫分析(TRFIA)技術(shù)研制一種同時檢測惡性瘧原蟲、間日瘧原蟲及混合感染試劑盒,并評價試劑盒各項性能指標。方法用抗惡性瘧原蟲/間日瘧原蟲乳酸脫氫酶(PLDH)抗體1H12作為捕獲抗體包被96孔板,以Sm3+標記抗惡性瘧原蟲乳酸脫氫酶(PfLDH)抗體2A5和Eu3+標記抗間日瘧原蟲乳酸脫氫酶(PvLDH)抗體4F6作為檢測抗體,建立惡性瘧與間日瘧雙標記時間分辨熒光分析法。結(jié)果試劑盒檢測惡性瘧原蟲的靈敏度為0.15ng/ml,線性范圍為0.5500ng/ml,平均稀釋回收率為102.2%,批內(nèi)與批間變異系數(shù)分別為6.48%和6.63%;檢測間日瘧原蟲的靈敏度為0.25ng/ml,線性范圍為0.5500ng/ml,平均稀釋回收率為100.78%,批內(nèi)與批間變異系數(shù)分別為5.39%和6.16%,惡性瘧與間日瘧檢測不相互干擾。用自制試劑盒檢測212份瘧疾患者血標本,陽性率為95.28%,高于鏡檢法的92.45%和Optimal法的51.89%。結(jié)論 PfLDH/PvLDH-TRFIA試劑盒能同時檢測惡性瘧、間日瘧及二者混合感染,且靈敏度高,可測范圍寬,穩(wěn)定性好,具有良好應用前景。
[Abstract]:Objective to develop a kit for simultaneous detection of Plasmodium falciparum, Plasmodium vivax and co-infection by double labeling time-resolved fluorescence immunoassay (TRFIA). Methods the anti-Plasmodium falciparum / Plasmodium vivax lactate dehydrogenase (PLDDH) antibody 1H12 was used as the capture antibody coated with 96 well plate. Sm3 labeled anti-Plasmodium falciparum lactate dehydrogenase antibody 2A5 and Eu3 labeled anti-Plasmodium vivax lactate dehydrogenase antibody 4F6 were used as detection antibodies. A double-label time-resolved fluorescence assay for falciparum malaria and vivax malaria was established. Results the sensitivity of the kit for the detection of Plasmodium falciparum was 0.15 ng / ml, and the linear range was 0.5500 ng / ml. The average dilution recovery was 102.2, and the coefficient of variation was 6.48% and 6.63, respectively. The sensitivity of detection of Plasmodium vivax was 0.25 ng / ml, the linear range was 0.5500 ng / ml, and the average dilution recovery was 100.78%. The coefficients of variation within and between batches were 5.39% and 6.16, respectively. Falciparum malaria and vivax malaria were not interfered with each other. A self-made kit was used to detect 212 blood samples of malaria patients, and the positive rate was 95.28%. It is higher than that of Optimal and 92.45%. Conclusion PfLDH/PvLDH-TRFIA kit can be used to detect falciparum malaria at the same time. Vivax malaria and its mixed infection have high sensitivity, wide range of detection, good stability, and have a good prospect of application.
【作者單位】: 山東省醫(yī)學科學院山東省寄生蟲病防治研究所山東省醫(yī)學科學院第三附屬醫(yī)院;山東醫(yī)藥技師學院;廣州優(yōu)迪生物科技有限公司;解放軍第88醫(yī)院;
【基金】:廣東省科技型中小企業(yè)技術(shù)創(chuàng)新專項資金項目(No.2016A010119067)
【分類號】:R531.3
【正文快照】: ***瘧疾是由瘧原蟲感染引起的蟲媒傳染病,寄生于人類的瘧原蟲有惡性瘧原蟲、間日瘧原蟲、三日瘧原蟲和卵形瘧原蟲4種,其中惡性瘧原蟲和間日瘧原蟲危害最大。據(jù)WHO報道,近年全球范圍內(nèi)有2.14億起***瘧疾病例,43.8萬人死亡,約32億人面臨瘧疾風險[1]。快速準確地診斷早期瘧原蟲感
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