目的 探讨激素敏感型肾病综合征(steroid-sensitivenephroticsyndrome,SSNS)患儿初始糖皮质激素(glucocorticoid,GC)治疗前后记忆T淋巴细胞(memory T cell,T_(M))亚群精细分型的表达水平及临床意义。方法 选择35例初次发病SSNS患儿作为...目的 探讨激素敏感型肾病综合征(steroid-sensitivenephroticsyndrome,SSNS)患儿初始糖皮质激素(glucocorticoid,GC)治疗前后记忆T淋巴细胞(memory T cell,T_(M))亚群精细分型的表达水平及临床意义。方法 选择35例初次发病SSNS患儿作为研究组,以20例健康体检儿童为正常对照组。采用多色流式细胞术分析比较研究组GC治疗前后及对照组TM亚群精细分型;酶联免疫吸附法(ELISA)检测各组T细胞因子水平,与临床指标做相关性分析。结果 研究组患儿GC治疗前CD4^(+)TM、CD4^(+)中央记忆T细胞(central memory T cell,T_(CM))、CD4^(+)效应记忆T细胞(effector memory T cell,TEM)、CD8^(+)TMcell、CD8^(+)TE_(M) cell百分比(占CD3^(+)T细胞)较缓解期和对照组升高,治疗前CD4^(+)初始T细胞(na?ve T cell,TN)较缓解期减少,差异均有统计学意义(P <0.05),治疗前记忆性干细胞样T细胞(stem-like memory T cells,T_(SCM))百分比较缓解期和对照组升高,差异有统计学意义(P <0.001);治疗前T细胞因子IL-1β、IL-8、IFN-γ较缓解期和对照组升高,差异有统计学意义(P <0.05);治疗前CD4^(+)TE_(M)cell比例与白蛋白水平、CD4^(+)T_(N)cell比例均呈明显负相关(P <0.01);与IFN-γ水平呈正相关(P <0.05)。结论 SSNS患儿存在T_(M)精细功能亚群和T_(SCM)分布异常,部分T细胞因子水平异常且与T_(M)亚群紊乱密切相关,共同参与疾病的发生发展;GC治疗干预了SSNS患儿T_(M)和T_(SCM)功能亚群的分布,为SSNS患儿细胞免疫精准治疗提供理论依据。展开更多
The paper reported various antibiotic sensitivity test of somatic cells of Porphyra yezoensis. The result showed somatic cells are very sensitive to Chloromycetin; semicide dose is less than 100 U/ml. It is proved tha...The paper reported various antibiotic sensitivity test of somatic cells of Porphyra yezoensis. The result showed somatic cells are very sensitive to Chloromycetin; semicide dose is less than 100 U/ml. It is proved that Chloromycetin is a good selective pressure for gene transformation of P. yezoensis. Somatic cells are also sensitive to tetracin.展开更多
文摘目的 探讨激素敏感型肾病综合征(steroid-sensitivenephroticsyndrome,SSNS)患儿初始糖皮质激素(glucocorticoid,GC)治疗前后记忆T淋巴细胞(memory T cell,T_(M))亚群精细分型的表达水平及临床意义。方法 选择35例初次发病SSNS患儿作为研究组,以20例健康体检儿童为正常对照组。采用多色流式细胞术分析比较研究组GC治疗前后及对照组TM亚群精细分型;酶联免疫吸附法(ELISA)检测各组T细胞因子水平,与临床指标做相关性分析。结果 研究组患儿GC治疗前CD4^(+)TM、CD4^(+)中央记忆T细胞(central memory T cell,T_(CM))、CD4^(+)效应记忆T细胞(effector memory T cell,TEM)、CD8^(+)TMcell、CD8^(+)TE_(M) cell百分比(占CD3^(+)T细胞)较缓解期和对照组升高,治疗前CD4^(+)初始T细胞(na?ve T cell,TN)较缓解期减少,差异均有统计学意义(P <0.05),治疗前记忆性干细胞样T细胞(stem-like memory T cells,T_(SCM))百分比较缓解期和对照组升高,差异有统计学意义(P <0.001);治疗前T细胞因子IL-1β、IL-8、IFN-γ较缓解期和对照组升高,差异有统计学意义(P <0.05);治疗前CD4^(+)TE_(M)cell比例与白蛋白水平、CD4^(+)T_(N)cell比例均呈明显负相关(P <0.01);与IFN-γ水平呈正相关(P <0.05)。结论 SSNS患儿存在T_(M)精细功能亚群和T_(SCM)分布异常,部分T细胞因子水平异常且与T_(M)亚群紊乱密切相关,共同参与疾病的发生发展;GC治疗干预了SSNS患儿T_(M)和T_(SCM)功能亚群的分布,为SSNS患儿细胞免疫精准治疗提供理论依据。
文摘The paper reported various antibiotic sensitivity test of somatic cells of Porphyra yezoensis. The result showed somatic cells are very sensitive to Chloromycetin; semicide dose is less than 100 U/ml. It is proved that Chloromycetin is a good selective pressure for gene transformation of P. yezoensis. Somatic cells are also sensitive to tetracin.
