Journal of International Reproductive Health/Family Planning ›› 2023, Vol. 42 ›› Issue (5): 361-365.doi: 10.12280/gjszjk.20230078

• Original Article • Previous Articles     Next Articles

Clinical Manifestations and Genetic Analysis of 21 Cases with Aicardi-Goutières Syndrome

ZENG Lan, WANG Jin, ZHU Hui, WANG Qi-yan, ZHU Shu-yao(), CHEN Ai, LUO Ze-min, PANG Ying   

  1. Department of Medical Genetics and Prenatal Diagnosis (ZENG Lan, WANG Jin), Department of Pediatrics (ZHU Hui, ZHU Shu-yao, CHEN Ai, LUO Ze-min, PANG Ying), Department of Radiological (WANG Qi-yan), Sichuan Provincial Maternity and Child Health Care Hospital, Chengdu 610031, China
  • Received:2023-02-23 Published:2023-09-15 Online:2023-09-13
  • Contact: ZHU Shu-yao E-mail:330986673@qq.com

Abstract:

Objective: The clinical manifestation and genetic characteristics of Chinese patients with Aicardi-Goutières syndrome (AGS) diagnosed by gene sequencing were summarized. Methods: Clinical data including the gene sequencing results of AGS patients meeting the inclusion criteria were collected and analyzed. Results: 21 Chinese AGS cases were included in this study. The clinical manifestations were intellectual disability (90.0%), movement disorders (89.5%), dystonia (73.7%) and microcephaly (70.6%). Cranial imaging showed bilateral symmetrical calcification of basal segment, progressive brain atrophy (95.2%), and skin manifestations with frostbite-like rash (84.2%). Gene mutation analysis of 21 cases showed 8 cases with mutations in TREX1, 5 cases with RNASEH2C mutations, 4 cases with IFIH1, 2 cases with ADAR mutations, 1 case with RNASEH2A and 1 case with RNASEH2B mutations. The mutations of SAMHD1 gene were not involved. 84.2% cases were pedigree inherited, those parents who carry genetic mutations have no symptoms, and 15.8% cases were new variants. Conclusions: It is important to strengthen prenatal attention to those fetuses with abnormal soft indicators such as fetal growth restriction, microcephaly and lateral ventricle widening, and to strengthen prenatal management, timely multidisciplinary discussion and prenatal diagnosis, so as to reduce the birth of children with AGS.

Key words: Aicardi-Goutières syndrome, China, Genes, Mutation, Phenotype, Diagnosis, Prenatal diagnosis