<unk>  (also known as "Doss<unk> ", "plumboporphyria", or "ADP") is a rare autosomal recessive metabolic disorder that results from inappropriately low levels of the enzyme delta-aminolevulinic<unk><unk>  (ALAD), which is required for normal heme synthesis. This<unk>  results in the accumulation of a toxic metabolic precursor in the heme synthesis pathway called<unk> <unk>  (ALA). Lead poisoning can also disrupt ALAD and result in elevated ALA causing the same symptoms. Heme is a component of hemoglobin which carries oxygen in red blood cells. ALA<unk><unk>  is a rare cause of hepatic<unk> , meaning that excess<unk> s originate from the liver rather than the bone marrow as in erythropoietic<unk> s.
Aminolevulinic acid dehydratase deficiency porphyria
Harderoporphyria
Pseudoporphyria
Hepatoerythropoietic porphyria
Donath–Landsteiner hemolytic anemia
Erythropoietic porphyria
Hepatic porphyria
Erythropoietic protoporphyria