Related Experiment Video
Updated: Jun 18, 2026

Rat Model of Photochemically-Induced Posterior Ischemic Optic Neuropathy
Published on: November 29, 2015
Sensorimotor axonal polyneuropathy without hepatic failure in erythropoietic protoporphyria
Gerald J D Hengstman1, Karlijn F de Laat, Bram Jacobs
1Department of Neurology, Catharina Hospital, Eindhoven, The Netherlands. g.hengstman@neuro.umcn.nl
Abstract:
The erythropoietic porphyrias are primarily manifested by skin sensitivity. They are, unlike many other forms of porphyria, usually not associated with neurologic manifestations. Only a few cases have been reported of neuropathy in patients with erythropoietic porphyrias, all characterized by an acute motor and proximally accentuated neuropathy occurring in the setting of hepatic failure. In this report, we present a patient without hepatic failure who presented with a sensorimotor axonal polyneuropathy before being diagnosed with erythropoietic porphyrias. The presented case expands the forms of neurologic complications that can be seen in this specific form of porphyria.
Related Concept Videos
Hepatic Encephalopathy
Neural Regulation
Inborn Errors of Metabolism
Diabetic Neuropathy
Lysosomal Hydrolases
Protein Import into the Peroxisomes
Peroxisomal Protein Import:
Peroxisomes lack the genetic machinery required to code for their own proteins. Hence, most peroxisomal membrane, lumenal and transmembrane proteins are synthesized in the cytoplasm or ER and transported to the peroxisome...
