Clinical dysmorphology · 2024
Autosomal recessive renal tubular dysgenesis: antenatal ultrasound scanning and molecular investigations.
СтатьяКлинический случайНазвание и аннотация: Перевод в очереди
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Liu Yang, Luo Caiqun, Wu Xiaoxia, Chen Liyuan, Cao Xiushu, Wang Hui
Аннотация
OBJECTIVE: This study aimed to elucidate the fetal ultrasound characteristics, pathology, and molecular genetic etiology of autosomal recessive tubular dysplasia.
METHODS: This retrospective study examined four fetuses with autosomal recessive tubular dysplasia (ARRTD) from two pregnancies, utilizing ultrasound evaluations and fetal renal pathology. Whole-exome sequencing-copy number variation analysis was employed to identify gene mutations.
RESULTS: We present for the first time renal vascular resistance in fetuses with ARRTD, characterized by increased renal blood flow resistance and reversed diastolic blood flow, indicating fetal renal insufficiency. This is the first report of a nonsense mutation (C.571C>T) found in the angiotensinogen gene.
CONCLUSION: ARRTD disease should be strongly suspected when ultrasound examinations reveal increased renal blood flow resistance, oligohydramnios, and inadequate bladder filling, regardless of the presence of renal abnormalities.
METHODS: This retrospective study examined four fetuses with autosomal recessive tubular dysplasia (ARRTD) from two pregnancies, utilizing ultrasound evaluations and fetal renal pathology. Whole-exome sequencing-copy number variation analysis was employed to identify gene mutations.
RESULTS: We present for the first time renal vascular resistance in fetuses with ARRTD, characterized by increased renal blood flow resistance and reversed diastolic blood flow, indicating fetal renal insufficiency. This is the first report of a nonsense mutation (C.571C>T) found in the angiotensinogen gene.
CONCLUSION: ARRTD disease should be strongly suspected when ultrasound examinations reveal increased renal blood flow resistance, oligohydramnios, and inadequate bladder filling, regardless of the presence of renal abnormalities.