目的探讨蜜蜂蜂毒过敏的临床特点。方法回顾2002年6月至2012年2月到北京协和医院就诊并确诊的蜜蜂蜂毒过敏患者及同时期因过敏性疾病在北京协和医院变态反应科就诊,无蜜蜂蛰刺过敏反应的相关临床病史,但蜜蜂蜂毒血清sIgE检测阳性的对照...目的探讨蜜蜂蜂毒过敏的临床特点。方法回顾2002年6月至2012年2月到北京协和医院就诊并确诊的蜜蜂蜂毒过敏患者及同时期因过敏性疾病在北京协和医院变态反应科就诊,无蜜蜂蛰刺过敏反应的相关临床病史,但蜜蜂蜂毒血清sIgE检测阳性的对照组患者资料;根据蜜蜂蜇刺后的过敏反应类型将研究组分为局部反应组、大局部反应组和全身反应组。分析蜜蜂蜂毒过敏患者生活地域、暴露类型等特点,比较各研究组和对照组之间的IgE比活性(IgE specific activity,sIgE/T-IgE)。结果研究组44例,男女之比为31:13,平均年龄37(29,48)岁,48%(21/44)生活在市区,52%(23/44)生活在郊区。局部反应组30例、大局部反应组6例、全身反应组8例。全身反应组中II级1例、III级7例。蜂毒暴露类型构成比的研究组间差异有统计学意义(P=0.0085),全身反应组中50%(4/8)为养蜂者。局部反应组、大局部反应组、全身反应组及对照组sIgE/T-IgE组间差异有统计学意义(P=0.001),全身反应组与对照组sIgE/T-IgE差异有统计学意义[3.51%(1.19%,8.84%)vs.0.16%(0.09%,0.49%),P=0.001]。全身反应组中1例在首次蜜蜂蜇刺时为大局部反应,3个月后再次蜜蜂蜇刺出现II级全身性严重过敏反应。结论蜜蜂蜂毒导致全身性严重过敏反应以职业性暴露最为常见,使用sIgE/T-IgE有助于正确诊断蜜蜂蜂毒过敏。展开更多
Preproapamin genes were amplified by RT-PCR from total RNA from the venom glands of 2 honeybee species, Apis mellifera, A. cerana cerana, and 4 wasp species, Vespa magnifica, V. velutina nigrothorax and Polistes hebra...Preproapamin genes were amplified by RT-PCR from total RNA from the venom glands of 2 honeybee species, Apis mellifera, A. cerana cerana, and 4 wasp species, Vespa magnifica, V. velutina nigrothorax and Polistes hebraeus, respectively. Their PCR products were ligated into pGEM -T easy vector and the nucleotide sequences analyzed. The six fragments were all 141?bp in length and contained a n ORF coding the precursor of apamin. The apamin precursors of V. magnifica, V. velutina nigrothorax and P. hebraeus had 95% and 93% similarity with that of A. melliera in nucleotide and amino acid sequences, respectively. That of Vespu la maculifrons was identical to that of A. mellifera in nucleotide and amino acid sequences. Apamin precursors of V. magnifica, P. hebraeus and V. velutina nigrothorax also had the same nucleotide sequences. The nucleotide sequences o f preproapamin genes from the Chinese honeybee, A. cerana cerana and 4 wasp sp ecies are described for the first time. A notable discovery was that the wasps species had exactly same apamins as the honeybees despite the fact they belong to different insect families.展开更多
文摘目的探讨蜜蜂蜂毒过敏的临床特点。方法回顾2002年6月至2012年2月到北京协和医院就诊并确诊的蜜蜂蜂毒过敏患者及同时期因过敏性疾病在北京协和医院变态反应科就诊,无蜜蜂蛰刺过敏反应的相关临床病史,但蜜蜂蜂毒血清sIgE检测阳性的对照组患者资料;根据蜜蜂蜇刺后的过敏反应类型将研究组分为局部反应组、大局部反应组和全身反应组。分析蜜蜂蜂毒过敏患者生活地域、暴露类型等特点,比较各研究组和对照组之间的IgE比活性(IgE specific activity,sIgE/T-IgE)。结果研究组44例,男女之比为31:13,平均年龄37(29,48)岁,48%(21/44)生活在市区,52%(23/44)生活在郊区。局部反应组30例、大局部反应组6例、全身反应组8例。全身反应组中II级1例、III级7例。蜂毒暴露类型构成比的研究组间差异有统计学意义(P=0.0085),全身反应组中50%(4/8)为养蜂者。局部反应组、大局部反应组、全身反应组及对照组sIgE/T-IgE组间差异有统计学意义(P=0.001),全身反应组与对照组sIgE/T-IgE差异有统计学意义[3.51%(1.19%,8.84%)vs.0.16%(0.09%,0.49%),P=0.001]。全身反应组中1例在首次蜜蜂蜇刺时为大局部反应,3个月后再次蜜蜂蜇刺出现II级全身性严重过敏反应。结论蜜蜂蜂毒导致全身性严重过敏反应以职业性暴露最为常见,使用sIgE/T-IgE有助于正确诊断蜜蜂蜂毒过敏。
文摘Preproapamin genes were amplified by RT-PCR from total RNA from the venom glands of 2 honeybee species, Apis mellifera, A. cerana cerana, and 4 wasp species, Vespa magnifica, V. velutina nigrothorax and Polistes hebraeus, respectively. Their PCR products were ligated into pGEM -T easy vector and the nucleotide sequences analyzed. The six fragments were all 141?bp in length and contained a n ORF coding the precursor of apamin. The apamin precursors of V. magnifica, V. velutina nigrothorax and P. hebraeus had 95% and 93% similarity with that of A. melliera in nucleotide and amino acid sequences, respectively. That of Vespu la maculifrons was identical to that of A. mellifera in nucleotide and amino acid sequences. Apamin precursors of V. magnifica, P. hebraeus and V. velutina nigrothorax also had the same nucleotide sequences. The nucleotide sequences o f preproapamin genes from the Chinese honeybee, A. cerana cerana and 4 wasp sp ecies are described for the first time. A notable discovery was that the wasps species had exactly same apamins as the honeybees despite the fact they belong to different insect families.