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.
TÃµnu Lehtsaar has defined the term fanaticism as the pursuit or defence of something in an extreme and passionate way that goes beyond normality. Religious fanaticism is defined by blind faith, the persecution of dissents and the absence of reality.