A comparison of 1H8- and 2H8-toluene toxicokinetics in men.
A comparison of 1H8- and 2H8-toluene toxicokinetics in men.
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1H8- 和 2H8- 甲苯在男性中的毒代动力学比较。
DOI:
10.1080/004982599238830
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Kalman,DA
中科院分区:
文献类型:
--
作者:
Pierce,CH;Lewandowski,TA;Dills,RL;Morgan,MS;Wessels,MA;Shen,DD;Kalman,DA
To examine the bioequivalence of an isotope-labelled tracer to study toxicant disposition, we conducted 33 controlled human exposures to a mixture of 50 ppm Htoluene and 50 ppm H-toluene for 2h, and measured concentrations in blood and breath, and metabolite levels in urine for 100h post-exposure. 2. A physiologically based kinetic (PBK) model found that compared with H-toluene, H-toluene had a 6.4 13%(mean SD) lower AUC, a 6.5 13% higher systemic clearance (1.46 0.27 versus 1.38 0.25 l h-kg), a 17 22% larger terminal volume of distribution (66.4 14 versus 57.2 10 l kg) and a 9.7 26% longer terminal half-life (38 12 versus 34 10h)(p0. 05 for all comparisons). 3. The higher H-toluene clearance may have been due to an increased rate of ring oxidation, consistent with the 17% higher observed fraction of H-versus H-cresol metabolites in urine. 4. The larger terminal volume and half-lives for H-toluene suggested a higher adipose tissue blood partition coefficient. 5. Observed isotope differences were small compared with interindividual differences in H-toluene kinetics from previous studies. 6. The PBK model allowed us to ascribe observed isotope differences in solvent toxicokinetics to underlying physiologic mechanisms.
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DOI:
10.1007/bf00383150
发表时间:
1995
影响因子:
3
作者:
F. Brugnone;M. Gobbi;K. Ayyad;C. Giuliari;M. Cerpelloni;L. Perbellini
通讯作者:
L. Perbellini
影响因子:
8.3
作者:
Smith,DR;Osterloh,JD;Niemeyer,S;Flegal,AR
通讯作者:
Flegal,AR
影响因子:
3.8
作者:
Pierce,CH;Dills,RL;Morgan,MS;Nothstein,GL;Shen,DD;Kalman,DA
通讯作者:
Kalman,DA
影响因子:
3.8
作者:
TARDIF, R;LAPARE, S;BRODEUR, J
通讯作者:
BRODEUR, J
影响因子:
2.1
作者:
BURM, AGL;DEBOER, AG;BREIMER, DD
通讯作者:
BREIMER, DD