Lehnert T, Küry S, Bürk G, Hoepffner W, Schuster V
Universitätsklinik für Kinder und Jugendliche, Oststrasse 21-25, 04317 Leipzig.
Klin Padiatr. 2006 Jul-Aug;218(4):221-3. doi: 10.1055/s-2005-836465.
Acrodermatitis enteropathica (AE) is an autosomal recessively inherited disease caused by a decreased intestinal zinc resorption and characterized by severe dermatitis (preferably hands, feet, mouth, genital region), chronic diarrhoea, retardation of growth and development, alopecia and increased proneness to infections. In 2002 it was shown that mutations in the zinc transporter gene SLC39A4 is the cause of AE.
Here we report 4 patients with typical clinical signs since early childhood. Under regular substitution with zinc all patients are more or less free of symptoms. The first patient revealed compound-heterozygous missense/nonsense mutations (P200L/ W401X), the three other patients were homozygous for a mutation in intron 1 (c.192 + 19G > A) of the SLC39A4 gene.
The diagnosis of hereditary acrodermatitis enteropathica can now easily be confirmed by mutation analysis of the SLC39A4 gene.
肠病性肢端皮炎(AE)是一种常染色体隐性遗传病,由肠道锌吸收减少引起,其特征为严重皮炎(好发于手足、口腔、生殖器部位)、慢性腹泻、生长发育迟缓、脱发以及易感染。2002年研究表明,锌转运蛋白基因SLC39A4突变是AE的病因。
本文报告4例自幼年起即有典型临床症状的患者。在定期补充锌剂后,所有患者或多或少均无症状。首例患者发现复合杂合错义/无义突变(P200L/W401X),其他3例患者为SLC39A4基因第1内含子突变(c.192+19G>A)的纯合子。
遗传性肠病性肢端皮炎的诊断现在可通过SLC39A4基因的突变分析轻易确诊。