查看更多>>摘要:GATOR1复合物位于mTOR信号通路上游,能够调控mTORC1的功能。GATOR1复合物基因变异与癫痫、发育迟缓、脑皮质发育畸形及肿瘤等疾病密切相关。本文拟就GATOR1复合物基因变异相关疾病的研究进展进行综述,旨在为该类患者的诊疗提供参考方案。 The GATOR1 complex is located at the upstream of the mTOR signal pathway and can regulate the function of mTORC1. Genetic variants of the GATOR1 complex are closely associated with epilepsy, developmental delay, cerebral cortical malformation and tumor. This article has reviewed the research progress in diseases associated with genetic variants of the GATOR1 complex, with the aim of providing a reference for the diagnosis and treatment of such patients.
查看更多>>摘要:甲基丙二酸血症是一种常见的有机酸血症,呈常染色体隐性遗传,临床表现无特异性,以呕吐、嗜睡等神经系统症状为主。即使积极治疗,患儿仍可能遗留不同程度的神经系统并发症,甚至死亡。其预后主要与基因变异的类型、毒性代谢物水平、是否通过新生儿筛查确诊、是否发病及是否早期诊治有关。本文就不同类型的甲基丙二酸血症患者的预后及其影响因素等进行综述。 Methylmalonic acidemia (MMA) is a series of rare inherited organic acid metabolic disorders with variable and nonspecific clinical manifestations, in particular neurological symptoms such as vomiting, lethargy, etc. Even with timely treatment, patients may still have various degrees of neurological complications and can even die. The prognosis is mainly related to the type of genetic variants, level of metabolites, newborn screening, onset of disease and early initiation of treatment. This article has reviewed the prognosis of patients with various types of MMA and factors that may affect it.
查看更多>>摘要:26岁,G4P0,孕22+3周,因"不良妊娠史"于2022年2月28日至四川大学华西第二医院产前诊断中心就诊(图1,Ⅱ2)。2018年孕26+周时曾因"胎儿头小,羊水染色体基因组拷贝数变异测序(copy number variation sequencing,CNV-seq)提示4号染色体短臂末端大片段缺失"引产1女胎(Ⅲ1);2019年生化妊娠1次(Ⅲ2)、葡萄胎1次(Ⅲ3)。孕妇妹妹(Ⅱ4)曾有1次葡萄胎妊娠史,家系其他成员均无特殊。夫妇双方外院(2019年3月)外周血染色体核型分析均未见明显异常,双方均身体健康,否认近亲婚配。本研究通过了医院伦理委员会的审查(2019077),夫妇双方均签署了临床研究知情同意书。