The effects of ethanol ingestion and repeated benzene exposures on benzene pharmacokinetics.

The effects of ethanol ingestion and repeated benzene exposures on benzene pharmacokinetics.
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乙醇摄入和反复接触苯对苯药代动力学的影响。

DOI:
10.1016/0041-008x(84)90104-2
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发表时间:
1984
影响因子:
3.8
通讯作者:
Snyder,CA
Snyder,CA
中科院分区:
医学3区
文献类型:
--
作者:
Driscoll,KE;Snyder,CA

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两组 C57B1 6J 小鼠暴露于 300 ppm 苯蒸气,每天 6 小时,每周 5 天,共 20 次。一组在初次接触前 20 小时开始饮用含有 10% 乙醇 (EtOH) 的饮用水,并在整个研究过程中每周持续 5 天。第二组接受自来水。在第 1 次和第 20 次接触期间和之后,跟踪血液中苯的吸收和清除情况。在第一次接触苯期间,苯/乙醇处理的小鼠和苯/水处理的小鼠的平均稳态苯浓度分别为 5.2 和 10.7 μg/ml。苯/乙醇和苯/水处理组的平均消除速率常数分别为 0.124 和 0.042 min−1。通过 20 次暴露,苯/乙醇组的平均血液稳态浓度 (Css) 没有变化;然而,苯/水基团的Css降低至7.9μg/ml。第 20 次暴露后,两组的平均消除率常数没有差异。苯/水小鼠在第 1 次和第 20 次暴露之间表现出从单指数到双指数清除率的转变。在两个时间点都观察到苯/乙醇组的单指数清除率。这些结果表明,1 天消耗 10% EtOH 对苯动力学产生显着影响。处理 20 天后,苯/水和苯/乙醇动物的动力学相似。这些动力学变化可以通过乙醇和苯改变苯代谢的能力来解释。
Two groups of C57B1 6J mice were exposed to 300-ppm benzene vapor, 6 hr/day, 5 days/week for 20 exposures. One group received 10% ethanol (EtOH) in the drinking water commencing 20 hr prior to the initial exposure and continuing 5 days/week throughout the study. The second group received tap water. The uptake and clearance of benzene was followed in the blood during and after the 1st and 20th exposures. During the first benzene exposures, the mean steady state benzene concentrations in benzene/EtOH-treated mice and benzene/water-treated mice were 5.2 and 10.7 μg/ml, respectively. The mean elimination rate constants for the benzene/EtOH- and benzene/water-treated groups were 0.124 and 0.042 min−1, respectively. By 20 exposures, the benzene/EtOH group showed no change in mean blood steady state concentration (Css); however, the Css of the benzene/water group was reduced to 7.9 μg/ml. The mean elimination rate constants for the two groups were not different after the 20th exposure. The benzene/water mice exhibited a shift from mono- to biexponential clearance between the 1st and 20th exposures. Monoexponential clearances were observed for the benzene/EtOH group at both time points. These results indicate that 1 day of 10% EtOH consumption causes dramatic effects on benzene kinetics. After 20 days of treatment, the benzene/water and benzene/EtOH animals are kinetically similar. These changes in kinetics can be explained by the ability of ethanol and benzene to alter benzene metabolism.
酗酒患者的甲苯磺丁脲代谢率增加。
DOI: --
发表时间: 1969
期刊: Journal of the American Medical Association (JAMA)
影响因子: --
作者:
R. Kater;F. Tobon;F. Iber
通讯作者: F. Iber
DOI: 10.1136/oem.37.4.382
发表时间: 1980-11
期刊: British Journal of Industrial Medicine
影响因子: --
作者:
A. Sato;And T NAKAJIMA;Y. Koyama
通讯作者: A. Sato;And T NAKAJIMA;Y. Koyama
DOI: --
发表时间: 1973
期刊:
影响因子: --
作者:
R. T. Drew;S. Laskin
通讯作者: S. Laskin
DOI: --
发表时间: 1955
期刊: Pediatrics
影响因子: 8
作者:
James E. Drorbaug;W. O. Fenn
通讯作者: W. O. Fenn
苯的代谢和毒性
DOI: 10.1007/978-1-4613-4124-6_31
发表时间: 1977
影响因子: 3.9
作者:
R. Snyder;L. S. Andrews;E. Lee;C. Witmer;M. Reilly;J. Kocsis
通讯作者: J. Kocsis