ENSC 201 Lecture Notes - Lecture 6: Attention Deficit Hyperactivity Disorder, Teratology, Alarp
10 Mar 2017
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Document Summary
1900s pneumonia and tuberculosis were the two leading causes of death in most countries. These are the leading cause of death in developed countries. Noted high incidence of cancer of the scrotum in chimney sweeps. Correctly attributed to occupational exposure to chemicals (coal tar) in soot. Miners, stone cutters, and lens grinders often developed respiratory disease from inhaling large quantities of dust. Carcinogen: xenobiotic that when administered to animals leads to an increase in the number of neoplasms. Includes a number of organic and inorganic chemicals. International agency for research on cancer (iarc), part of who. Mission: to coordinate and conduct research on the causes of human cancer, the mechanisms of carcinogenesis, and to develop scientific strategies for cancer prevention and control. Group 1: carcinogenic to humans (processed meat) Group 2a: probably carcinogenic to humans (red meat) Group 3: not classifiable as to its carcinogenicity to humans. Group 4: probably not carcinogenic to human.
