Yang Liu, Caiqun Luo, Xiaoxia Wu, Liyuan Chen, Xiushu Cao, Hui Wang
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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.
期刊介绍:
Clinical Dysmorphology publishes succinct case reports on the etiology, clinical delineation, genetic mapping, and molecular embryology of birth defects. This journal covers such topics as multiple congenital anomaly syndromes - with particular emphasis on previously undescribed conditions, rare findings, ethnic differences in existing syndromes, fetal abnormalities, and cytogenetic aberrations that might give clues to the localization of developmental genes. Regular features include original, peer-reviewed articles, conference reports, book and software reviews, abstracts and summaries from the UK Dysmorphology Club, and literature summaries.
Submitted articles undergo a preliminary review by the editor. Some articles may be returned to authors wihtout further consideration. Those being considered for publication will undergo further assessment and peer-review by the editors and those invited to do so from a reviewer pool.