Medical Genetics, Kasturba Medical College Manipal, Manipal, Karnataka, India.
Medical Genetics, Kasturba Medical College Manipal, Manipal, Karnataka, India
BMJ Case Rep. 2021 Jun 3;14(6):e239755. doi: 10.1136/bcr-2020-239755.
Disorders of intracellular cobalamin metabolism are a group of metabolic disorders that lead to varied clinical presentation from intrauterine life to adulthood. We report a male infant with developmental regression, macrocytic anaemia and hyperpigmentation. Exome sequencing identified a homozygous pathogenic variant in the gene, known to cause homocystinuria, cblD type (MIM #277410). We describe significant clinical improvement with targeted therapy and emphasise the relevance of genomic testing in accurate management of inherited metabolic disorders.
细胞内钴胺素代谢紊乱是一组代谢紊乱,可导致从宫内生命到成年期的各种临床表现。我们报告了一例男性婴儿,表现为发育倒退、巨幼细胞性贫血和色素沉着过度。外显子组测序发现了一个 基因的纯合致病性变异,该基因已知可导致同型胱氨酸尿症 cblD 型(MIM #277410)。我们描述了靶向治疗的显著临床改善,并强调了基因组检测在遗传性代谢紊乱的准确管理中的相关性。