1999
DOI: 10.1006/enrs.1998.3880
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Lead in Plasma and Whole Blood from Lead-Exposed Children

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Cited by 67 publications
(38 citation statements)
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“…Previous studies have reported an apparent severalfold variation in the relative partitioning of Pb between whole-blood and plasma (or serum) for a given whole-blood Pb level (3,8,(13)(14)(15)(16)(17)(18)(19). Because plasma Pb levels appear to be typically < 0.5 ng/mL (i.e., < 0.5% of whole-blood Pb levels) in environmentally exposed humans, some of these discrepancies may be explained by methodologic difficulties associated with the collection and analyses of samples that generally contain < 1-2 ng total Pb (10).…”
mentioning
confidence: 99%
“…Previous studies have reported an apparent severalfold variation in the relative partitioning of Pb between whole-blood and plasma (or serum) for a given whole-blood Pb level (3,8,(13)(14)(15)(16)(17)(18)(19). Because plasma Pb levels appear to be typically < 0.5 ng/mL (i.e., < 0.5% of whole-blood Pb levels) in environmentally exposed humans, some of these discrepancies may be explained by methodologic difficulties associated with the collection and analyses of samples that generally contain < 1-2 ng total Pb (10).…”
mentioning
confidence: 99%
“…Lead in blood is primarily in the red blood cells (99%) (Bergdahl et al 1997a(Bergdahl et al , 1998(Bergdahl et al , 1999Hernandez-Avila et al 1998;Manton et al 2001;Schutz et al 1996;Smith et al 2002). Most of the lead found in red blood cells is bound to proteins within the cell rather than the erythrocyte membrane.…”
Section: Distributionmentioning
confidence: 99%
“…No sangue, aproximadamente 99% é encontrado nos eritrócitos e apenas 1% permanece no plasma (Schutz et al, 1996). Estudos têm indicado que mais de 80% do chumbo nos eritrócitos está, principalmente, ligado à enzima ácido δ-aminolevulínico desidratase (ALAD) (Bergdahl et al,1999). O metal é então distribuído entre os tecidos moles e mineralizados (Rabinowitz, 1991 (Schroeder e Tipton, 1968;Leggett, 1993), de onde este pode ser mobilizado e contribuir para os níveis do metal no sangue em pessoas anteriormente expostas.…”
Section: Toxicocinética Do Chumbounclassified
“…Esse quadro pode resultar em baixas concentrações de hemoglobina no sangue e anemia. Como a anemia leva à diminuição do número de eritrócitos disponíveis para acumular chumbo, a própria anemia pode afetar a quantidade de chumbo no sangue (diminuindo o chumbo no sangue total), ao passo que a quantidade de chumbo no plasma não é afetada (Bergdahl et al, 1999).…”
Section: Polimorfismos Genéticosunclassified
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