Forensic scientists are able to use ink chromatography to solve crimes by matching documents or stains found at a crime scene to the marker or pen that belongs to a suspect. Forensic scientists analyze the unknown ink and compare it to writing utensils collected from possible suspects.
Symptoms of Variegate Porphyria The hepatic porphyrias primarily affect the nervous system, resulting in abdominal pain, vomiting, acute neuropathy, seizures, and mental disturbances, including hallucinations, depression, anxiety, and paranoia.
Points to Remember. 1  Porphyrias are rare disorders that affect mainly the skin or nervous system and may cause abdominal pain. 2  Each of the eight types of porphyria corresponds to low levels of a specific enzyme in the heme biosynthetic pathway. 3  The exact rates of porphyria are unknown and vary around the world. For example, porphyria cutanea tarda is most common in the United States, and variegate porphyria is most common in South America. 1. What causes porphyria? Most porphyrias are inherited disorders. Scientists have identified genes for all eight enzymes in the heme biosynthetic pathway.