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J Gastroenterology:与SLCO2A1基因相关的慢性肠病不是克罗恩病

2018-10-13 MedSci MedSci原创

与SLCO2A1基因相关的慢性肠病(CEAS)是由SLCO2A1基因突变引起的遗传性疾病,其特征在于多种非特异性组织学的小肠溃疡。SLCO2A1也是原发性肥大性骨关节病(PHO)的致病基因。然而,目前我们对CEAS或PHO的临床特征知之甚少。

背景
与SLCO2A1基因相关的慢性肠病(CEAS)是由SLCO2A1基因突变引起的遗传性疾病,其特征在于多种非特异性组织学的小肠溃疡。SLCO2A1也是原发性肥大性骨关节病(PHO)的致病基因。然而,目前我们对CEAS或PHO的临床特征知之甚少。

方法
研究人员招募了2012年至2016年期间通过全国范围的CEAS调查的65名日本患者参加了本研究。并回顾了遗传检测证实的CEAS患者的临床信息。

结果
研究人员在46名患者的11个位点发现了隐性SLCO2A1突变。在46例基因证实为CEAS的患者中,13例为男性,33例为女性。疾病发作的中位年龄为16.5岁。45名患者(98%)出现贫血,而一名患者出现严重的血尿。所有患者在血液测试中显示相对低的炎症标记物(中位CRP 0.20mg / dl)。最常见的肠道部位是回肠(98%),尽管没有患者在回肠末端有粘膜损伤。13名患者(28%)发现了轻度杵状指或骨膜增生症,其中5名男性患者符合PHO的主要诊断标准。

结论
CEAS的临床特征与克罗恩病的临床特征不同。因此,对于临床怀疑患有CEAS的患者,推荐对SLCO2A1基因进行遗传分析。


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    2018-11-28 许安
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