A novel mitochondrial disease arises from mutations in HPDL, which codes for 4-hydroxyphenylpyruvate dioxygenase-like protein. The main purpose of this study is to establish a patient registry to gather medical data from consenting HPDL mutation patients worldwide. From longitudinal data, we will be able to figure out the natural history of the disease, and genotype-phenotype correlation. Dry blood spots will be collected to develop biomarkers to understand the disease better.
This study uses medical records that allow retrospective data extraction of clinical manifestation to assess the natural history of HPDL mutations