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急性免疫性血小板减少症患儿免疫状态研究 被引量:6

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摘要 目的检测急性免疫性血小板减少症(ITP)患儿T淋巴细胞亚群、NK细胞、其他相关细胞因子和血小板相关抗体,探讨急性ITP发病机制。方法 2011年4月至2012年2月新乡医学院第一附属医院儿科采用流式细胞仪检测32例急性ITP患儿及20例外科住院儿童(对照)外周血T细胞亚群、NK细胞比例,采用双抗体夹心酶联免疫吸附试验定量(ELISA)方法检测两组外周血血小板相关抗体(PAIgA、PAIgG、PAIgM)、γ干扰素(IFN-γ)、白细胞介素(IL)-4水平,并进行比较分析。结果急性ITP患儿CD3+、CD4+、CD4+/CD8+水平均明显低于对照组(P<0.05),CD8+水平明显高于对照组(P<0.05);急性ITP患儿NK细胞水平与对照组比较差异无统计学意义(P>0.05);急性ITP患儿PAIgG、PAIgA、PAIgM的水平均明显高于对照组(P<0.05);急性ITP患儿IFN-γ水平明显高于对照组(P<0.05),IL-4水平明显低于对照组(P<0.05)。急性ITP患儿CD4+、CD8+细胞百分比改变与血小板计数(BPC)无相关(P>0.05),IFN-γ与IL-4呈明显负相关(r=-0.907,P<0.05),PAIgG与BPC呈明显负相关(r=-0.846,P<0.05)。结论急性ITP患儿存在T细胞亚群失衡、体液免疫紊乱,同时存在细胞因子紊乱,可能是一种Th1优势疾病。T淋巴细胞亚群、细胞因子及血小板相关抗体的变化可较好地反映儿童急性ITP病理过程,NK细胞与儿童急性ITP发病机制关系尚不明确。
出处 《中国实用儿科杂志》 CSCD 北大核心 2014年第7期548-550,共3页 Chinese Journal of Practical Pediatrics
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参考文献12

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