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.
The first persecution of Christians organised by the Roman government took place under the emperor Nero in 64 AD after the Great Fire of Rome ;with the passage in 313 AD of the Edict of Milan, anti-Christian policies directed against Christians by the Roman government ceased.rior to 64 AD, there is no evidence for action taken by the Roman government against Christians, and after that episode under Nero, no further evidence for anti-Christian policies against Christians until 250 AD.