Phenotypes of SMA patients retaining SMN1 with intragenic mutation

Spinal muscular atrophy (SMA) is an autosomal recessive neuromuscular disorder caused by homozygous deletion or intragenic mutation of the SMN1 gene. It is well-known that high copy number of its homologous gene, SMN2, modifies the phenotype of SMN1-deleted patients. However, in the patients with intragenic SMN1 mutation, the relationship between phenotype and SMN2 copy number remains unclear.

Source: Brain and Development - April 20, 2021 Category: Neurology Authors: Yogik Onky Silvana Wijaya, Mawaddah Är Rochmah, Emma Tabe Eko Niba, Naoya Morisada, Yoriko Noguchi, Yasufumi Hidaka, Shiro Ozasa, Takeshi Inoue, Tomoyuki Shimazu, Yuya Takahashi, Takenori Tozawa, Tomohiro Chiyonobu, Takushi Inoue, Tomoyoshi Shiroshita, A Tags: Original article Source Type: research