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- W2058501546 abstract "Lead has no biological function; however, low, and particularly, high levels of exposure have a number of negative consequences for human health. Despite the number of reports about lead toxicity, very little information has been obtained regarding its effects on cell membranes. For this reason, the structural effects of lead on the human erythrocyte membranes were investigated. This aim was attained by making lead ions interact with intact erythrocytes, isolated unsealed erythrocyte membranes (IUM) and molecular models. The latter consisted of bilayers of dimyristoylphosphatidylcholine (DMPC) and dimyristoylphosphatidylethanolamine (DMPE), representing phospholipid classes located in the outer and inner monolayers of the human erythrocyte membrane. The results, obtained by electron microscopy, fluorescence spectroscopy and X-ray diffraction, indicated that (a) lead particles adhered to the external and internal surfaces of the human erythrocyte membrane; (b) lead ions disturbed the lamellar organization of IUM and DMPC large unilamellar vesicles (LUV) and (c) induced considerable molecular disorder in both lipid multilayers, the effects being much more pronounced in DMPC." @default.
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- W2058501546 date "2003-11-01" @default.
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- W2058501546 title "Effects of lead on the human erythrocyte membrane and molecular models" @default.
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- W2058501546 doi "https://doi.org/10.1016/s0162-0134(03)00292-7" @default.
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