目的：研究P-选择素基因 -2123位点多态性与儿童过敏性紫癜（HSP）发病的相关性。方法应用聚合酶链反应限制性片段长度多态性(PCR-RFLP)分析方法对86例HSP患儿（其中40例合并肾炎）和70例健康对照进行基因多态性检测。结果与对照组比较，HSP患儿P-选择素基因 -2123位点GG基因型频率和G等位基因频率均明显增高（P＜0.05）。合并肾炎患儿与未合并肾炎患儿比较，该位点各基因型频率及等位基因频率差异均无统计学意义（P＞0.05）。结论 P-选择素基因 -2123位点多态性可能与儿童HSP发病有关。
Abstract
OBJECTIVE: To investigate whether P-selectin gene -2123 polymorphism is associated with the pathogenesis of Henoch-Schonlein purpura (HSP) in children. METHODS: Polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) is used to identify the distribution of allele and genotype frequencies of P-selectin gene promoter -2123 polymorphism in 86 children with HSP (including 40 cases of purpura nephritis) and 70 healthy controls. RESULTS: Compared with the healthy controls, the frequencies of GG genotype and G allele of P-selectin promoter -2123 in children with HSP increased significantly (P<0.05). There were no significant differences in P-selectin promoter -2123 genotype and allele frequencies between the patients with and without nephritis. CONCLUSIONS: P-selectin gene promoter -2123 polymorphism appears to be associated with the pathogenesis of HSP in children.
关键词
过敏性紫癜 /
肾炎 /
P-选择素 /
基因多态性 /
儿童
Key words
Henoch-Schonlein purpura /
Nephritis /
P-selectin /
Gene polymorphism /
Child
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