Purpose: To report longitudinal phenotypic findings in a patient with Sanfilippo syndrome type IIIA, harboring SGSH mutations, one of which is novel.
Methods: Heparan-N-sulfatidase enzyme function testing in skin fibroblasts and white blood cells and SGSH gene sequencing were obtained. Clinical office examinations, examinations under anesthesia, electroretinogram, spectral domain optical coherence tomography (SD-OCT), and fundus photography were performed over a 5-year period.
Purpose: To investigate the potential influence of additional copy number variants in patients with 15q24 rearrangements and the possible underlying mechanisms for these rearrangements.
Methods: Oligonucleotide-based chromosomal microarray analyses were performed, and the results were subsequently confirmed by fluorescence in situ hybridization analyses. Long-range polymerase chain reaction amplification and DNA sequencing analysis were used for breakpoint junction sequencing.