Home   Disease   Symptom 
English DeutschEspañolFrançaisItalianoNederlandsPortuguês
Contact us...

The Porphyrias

The porphyrias are a group of disorders characterized by genetic or acquired enzyme deficiencies in the metabolic pathway of haem, resulting in accumulation of haem precursors (5-aminolevulinic acid, porphobilinogen and porphyrins). The porphyrins are light-sensitizing substances, and disorders related to them result in phototoxic symptoms in skin areas exposed to light. The porphyrias are due to abnormalities in the control of the porphyrin - haem metabolic pathway, with each type of porphyria resulting from a specific enzyme deficiency.

Topics on healthportal
Read about Scabies ...