Answers. Relevance. Rating Newest Oldest. Best Answer: a Spanish term that was formerly used in the Spanish Empire to designate people of mixed European (Spaniard) and Amerindian ancestry living in the region of Latin America.[1] The word originated from the Romance language / Latin word Mixticius, meaning mixed.
The major mechanism of lead toxicity is due to increased generation of reactive oxygen species (ROS) and interference with generation of antioxidants. Lead causes the generation of ROS like hydroperoxide, hydrogen peroxide, and singlet oxygen. ROS are stabilized by glutathione in the body.
Health effects of arsenic and lead Arsenic and lead are toxic metals and can be harmful to humans, especially children. They pollute the soil in many parts of Washington near former smelters, and old orchards where lead arsenate pesticide was used. They can also be found in products used in our daily lives. Sources of lead include old paint, gasoline, and lead plumbing.