Marisa Wexler, MS, senior science writer —

The case of a girl with unexplained seizures in whom an epilepsy gene panel screening was the key toward a correct diagnosis of aromatic L-amino acid decarboxylase (AADC) deficiency was described in a report. “This case report shows that AADC deficiency can be the underlying diagnosis in patients with…

IndoUSrare, a U.S.-based humanitarian organization, is working to build international connections between scientists to accelerate research that aims to improve care for people affected by rare diseases, such as AADC deficiency. “The solution to the considerable economic and social challenges presented by rare diseases is global collaboration. The…

A new mutation in the DDC gene was identified as the cause of aromatic L-amino acid decarboxylase (AADC) deficiency in a baby boy in the United Arab Emirates (UAE), scientists report. This marks the first documented case of AADC deficiency in the UAE and one of the few reported in the…

People with AACD deficiency commonly experience emotional problems and intellectual disability, though the severity of cognitive impairment varies markedly among patients, a new study indicates. “Our study provides further evidence that AADCD requires specific neurological and neuropsychological assessments to monitor the disease,” the study’s researchers wrote. The study, “Long-term…

Scientists have discovered a new technique to measure the activity of the aromatic-L-amino acid decarboxylase (AADC) enzyme to help diagnose AADC deficiency. The assay, which uses liquid chromatography-tandem mass spectrometry, was detailed in a study, “Biochemical diagnosis of aromatic-L-amino acid decarboxylase deficiency (AADCD) by assay of…

Note: This story was updated on July 21, 2022, to note PTC is planning to request FDA approval of Upstaza. The European Commission has approved the gene therapy Upstaza (eladocagene exuparvovec) to treat aromatic l-amino acid decarboxylase (AADC) deficiency in patients ages 18 months and older. The approval…

Aromatic l-amino acid decarboxylase (AADC) deficiency has a significant negative effect on patients, their families, and the healthcare system, according to a new review paper that called it “a debilitating disease that significantly impacts quality of life for individuals and caregivers.” The review found that people with AADC deficiency…

The European Commission is expected to propose a new governing framework for health data next month, called the European Health Data Space (EHDS), with the aim of connecting national health systems to facilitate secure and efficient transfer of data across systems in different European nations. The move is expected to…

Motor symptoms have a substantial negative impact on the life quality of people with AADC deficiency and their caregivers, a new study involving interviews with more than a dozen parents and other caregivers reports. This finding highlights a need for therapies that can ease motor dysfunction in AADC deficiency,…

A team led by scientists at PTC Therapeutics has calculated health utilities — quantitative values for assessing health — for aromatic l-amino acid decarboxylase (AADC) deficiency based on data from a survey conducted in France. The findings, in combination with earlier work done in the U.K., could be helpful…