选择性免疫球蛋白A缺陷在阿曼患者中查乳病:一个横截面研究
Iman Nasr1, Manal Al Kindi2, Salma Al Abri3
1Clinical Immunology and Allergy Unit, Royal Hospital, Muscat, Oman.
Oman medical journal
|September 9, 2025
概括
选择性免疫球蛋白A缺乏症 (SIgAD) 影响0.4%的阿曼患者接受了乳病查. 较低的IgA水平在老年人中更为常见,与胰腺疾病标志物有潜在的联系.
科学领域:
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
- 流行病学 流行病学
背景情况:
- 选择性免疫球蛋白A缺乏症 (SIgAD) 是血清IgA与正常IgG和IgM的孤立下降.
- 症状有所不同,从没有症状到重复感染,影响免疫功能.
- 了解SIgAD患病率对于诊断诸如乳病等相关疾病至关重要.
研究的目的:
- 为了确定 IgA 缺乏症 (IgAD) 和 SIgAD 在接受乳病查的阿曼患者中的患病率.
- 在这个人群中调查低IgA水平和乳病标志物之间的关联.
主要方法:
- 一项横截面研究分析了阿曼国民 (年龄大于1岁) 在2005-2023年期间接受了乳病查.
- 通过低血清IgA定义的IgAD;通过正常IgG/IgM以及低IgA一起定义的SIgAD.
- 关于IgAD和SIgAD患病率的统计综述.
主要成果:
- 在9615人中,1.2%的人患有IgAD,0.4%的人确诊SIgAD.
- 随着年龄的增长,IgAD的患病率增加,特别是在6-14岁和>14岁的人群中.
- 一小部分SIgAD患者的胰腺癌检测结果呈阳性,检测出胰腺疾病标志物 (抗-tTG IgG,EGD).
结论:
- IgAD和SIgAD分别在1.2%和0.4%的阿曼患者中存在,这些患者分别接受了乳病查.
- 低IgA水平可能与腹腔疾病有关,需要进一步调查.
- 建议在低IgG/IgM或复发性感染的情况下转诊免疫学家.
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