Lead toxicity can cause symptoms that mimic acute porphyria (acute abdominal pain, constipation, and neuropathy). Lead inhibits several of the enzymes of haem biosynthesis, which can therefore result in an increase in urine coproporphyrin and 5-aminolevulinic acid excretion, but not porphobilinogen excretion.
Religious persecution is the systematic mistreatment of an individual or group of individuals as a response to their religious beliefs or affiliations or lack thereof. The tendency of societies or groups within society to alienate or repress different subcultures is a recurrent theme in human history.
In Christianity, exorcism is the practice of casting out demons. In Christian practice the person performing the exorcism, known as an exorcist, is often a member of the Christian Church, or an individual thought to be graced with special powers or skills.