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7 When Fenner presented his results to the Physico-Medical Society, an association of physicians from the South, ‘‘a committee was appointed to investigate the subject’’ of lead-contaminated drinking water in New Orleans, and to witness ‘‘a repetition’’ of the experiments conducted by Fenner. 9 The rejection of Fenner’s conclusions regarding lead water pipes was based on three things. First, if it were the lead water pipes and lead cisterns that were making people sick, more people should have been made ill with colic, because almost the entire population of the city was exposed, one way or another, to lead from these sources.
Although some of the results here have already been published in environmental science journals and other outlets,24 this book brings the results together in a systematic way and makes them accessible to a broad range of readers. Second, this book focuses on a source of environmental lead exposure that has received little attention, and it focuses on that source over a long period of time. This orientation reveals new insights into the medical and social history of lead poisoning. Some of these new insights relate to the work of medical researchers like Alfred Swann and Norman Porritt, who were among the ﬁrst scientists to draw attention to the correlation between lead and reproductive health.
Mitochondrial absorption of lead disrupts calcium homeostasis and causes a buildup of calcium in the cell. This process ultimately results in premature cell death, as undue amounts of calcium in the cell trigger apoptosis. 50 Of the many calcium-related targets that lead affects, the ones that have received the greatest attention are those associated with the transmission 42 Chapter 2 of nerve signals. Effective neurotransmission is predicated on the cellular functions of exocytosis and endocytosis.