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Plasma clearance and biodistribution of oxidatively modified 99mTc-ß-VLDL in rabbits BJMBR
The biodistribution and removal from plasma (measured as fractional clearance rate, FCR, per hour) of native and oxidatively modified 99mtechnetium-labeled ß-very low density lipoprotein (99mTc-ß-VLDL) were investigated in hypercholesterolemic (HC) and control (C) three-month old New Zealand rabbits. The intracellular accumulation of ß-VLDL labeled with 99mTc was studied in vitro in THP-1 cells and monocyte-derived macrophages isolated from rabbits. After intravenous injection into C rabbits, copper-oxidized ß-VLDL (99mTc-ox-ß-VLDL) was cleared from the circulation faster (0.362 ± 0.070/h) than native ß-VLDL (99mTc-nat-ß-VLDL, 0.241 ± 0.070/h). In contrast, the FCR of 99mTc-ox-ß-VLDL in HC rabbits was lower (0.100 ± 0.048/h) than that of 99mTc-nat-ß-VLDL...
Tipo: Info:eu-repo/semantics/other Palavras-chave: SS-very low density lipoprotein; Copper-mediated oxidation; Biodistribution; Fractional clearance rate; Atherosclerosis; Hypercholesterolemia; Cholesterol feeding; Rabbit.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000600002
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