A generalized dopamine deficiency in aromatic L-acid decarboxylase (AADC) deficiency causes some neurons to be overly active, which may contribute to the motor dysfunction associated with the condition, researchers report. A gene therapy that restores brain dopamine levels seems to repair these abnormalities, their study shows. The study, “Electrical…
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Patients with only one mutated copy of the DDC gene may present delayed or milder symptoms of AADC deficiency — including behavioral abnormalities as sole manifestations — that often lead to late diagnosis and further complications, a case report shows. The study, “When dysphoria is not a primary…
Antisense oligonucleotides (ASOs) — short nucleic acid molecules used to modulate protein production — can be used to correct abnormal dopa decarboxylase (DDC) processing in cells from patients with aromatic L-amino acid decarboxylase (AADC) deficiency, a new study reports. The study, “Antisense oligonucleotides modulate dopa decarboxylase function in…
PTC Therapeutics plans to request approval for its GT-AADC gene therapy, developed for the treatment of aromatic L-amino acid decarboxylase (AADC) deficiency, in the United States. Supported by positive data from clinical studies, the company expects to submit a biologics license application (BLA) with the U.S. Food and Drug Administration…
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