Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1993-1-11
pubmed:abstractText
Measurements of adducts formed with blood proteins, particularly haemoglobin, are increasingly being used to monitor human exposures to genotoxic chemicals. Information about the relationships between levels of genotoxic chemicals in the environment, e.g., concentration in the air, and levels of protein adducts in the blood is particularly important in setting safety standards and assessing risks. This paper describes the relationships between level of exposure to alkylating agents and level of haemoglobin adducts, considering the zero-order kinetics of the disappearance of these adducts. For comparison the corresponding relationship for adducts to macromolecules subjected to turnover, with first-order kinetics of disappearance, is described. For chemically stable and unstable adducts different exposure situations are considered: acute, chronic, intermittent and varying exposure levels. It is shown how an optimum solution of the problem of establishing the relationship between long-term exposure at varying levels (e.g., in work environments) and adduct level can be reached. Through mathematical derivations, which are given, expressions applicable to various exposure patterns are obtained and presented.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0027-5107
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
284
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
297-306
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Degree of alkylation of macromolecules in vivo from variable exposure.
pubmed:affiliation
Department of Mathematical Statistics, Stockholm University, Sweden.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't