葡萄糖-6-磷酸脱氢酶缺乏对中性粒细胞的影响

目的：探讨我国常见葡萄糖-6-磷酸脱氢酶(G-6-PD)缺乏对外周血中性粒细胞内酶活性及产生活性氧能力的影响。方法：检测正常人及G-6-PD缺乏患者外周血中性粒细胞G-6-PD活性、mRNA表达水平及其在静止与应激状态下产生活性氧的能力(NBT试验)。结果：G-6-PD缺乏患者外周血中性粒细胞内G-6-PP酶活性较正常人显著下降，mRNA表达水平上升，产生活性氧的能力(NBT还原试验)在静止状态下较正常白细胞高，但无统计学意义，在脂多糖(LPS)刺激下低于正常白细胞。结论：我国常见的G-6-PD缺乏能使中性粒细胞G-6-PD活性、应激状态下产生活性氧的能力下降。

The impact of glucose-6-phosphate dehydrogenase deficiency in Chinese on neutrophil

Objective: The aim of this study is to evaluate the impact of glucose-6- phosphate dehydrogenase deficiency in Chinese on the intracellular glucose-6-phosphate dehydrogenase activity and reactive oxygen intermediates production of peripheral neutrophil. Methods: Glucose-6-phosphate dehydrogenase, its mRNA expression and reactive oxygen intermediates production(NBT test) in silent or stimulated neutrophil from health controls and patients with glucose-6-phosphate dehydrogenase deficiency were analysized. Results: Compared with health controls, the activities of glucose-6-phosphate dehydrogenase of peripheral neutrophil from patients with glucose-6 -phosphate dehydrogenase deficiency was decreased, and its mRNA expression increased. Reactive oxygen intermediate production increased(no statistical signification) in silence but decreased following stimulation by LPS in neutrophil from normal individuals than that from patients. Conclusion: Decreased activity of G-6-PD and production of reactive oxygen intermediates following stimulation in neutrophil could be caused by G-6-PD deficiency in Chinese.