1. Introduction
Due to historical [1] and toxicological aspects [2] lead is one of
the more important metallic species. For living beings, mainly
mammals, there is no evidence of essential function for this
element, which trends to accumulate in the bones and causes
many biochemical alterations [2–4].
Such alterations are considered irreversible and have the
following symptons for the human beings: anemia, muscular
fatigue, cognitive problems in children, hyperactivity, irritation,
gastrointestinal problems, diminished fertility (for males) and
reduced renal functions [2].
Consequently, it is current practice to treat individuals contaminated
with lead in order to reduce their levels of contamination,
as is done at the Clinical Hospital of the University of
Campinas (UNICAMP). In general, these patients are individuals
with bullets inside their bodies [5] as well as professionals that
have direct or indirect contact with lead such as shooting
instructors [6] and the employees of foundries [7]. On the other
hand, the amount of lead in the various affected organs has not
being considered in toxicological studies, or at least, has not been
reported.