Protection against hepatotoxicity by a single dose of amphetamine: the potential role of heat shock protein induction.
Protection against hepatotoxicity by a single dose of amphetamine: the potential role of heat shock protein induction.
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单剂量安非他明预防肝毒性:热休克蛋白诱导的潜在作用。
DOI:
10.1006/taap.1997.8290
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发表时间:
1997
影响因子:
3.8
通讯作者:
Roberts,SM
中科院分区:
文献类型:
--
作者:
SalminenJr,WF;Voellmy,R;Roberts,SM
Amphetamine has been shown previously to increase levels of the inducible 70-kDa heat shock protein (hsp70i) in mouse liver. In the present study, the hepatic concentrations of a variety of hsps in livers of mice pretreated with amphetamine (15 mg/kg, ip) were evaluated, and the time course of hsp induction was examined. Amphetamine treatment caused an acute rise in core body temperature to 40°C for at least 1 hr and increased hsp25 and hsp70i levels, as measured by Western blotting, at 6, 24, 48, and 72 hr with no apparent induction of other hsps (hsp60, hsc70, or hsp90). A 72-hr amphetamine pretreatment lowered the hepatotoxicity of an acute dose of acetaminophen (350 mg/kg, ip) or bromobenzene (0.45 ml/kg, ip), but had no effect on the toxicity of carbon tetrachloride (0.04 ml/kg, ip) or cocaine (50 mg/kg, ip), as measured by serum alanine aminotransferase activity and histopathological analysis. No protection from acetaminophen or bromobenzene hepatotoxicity was observed when hepatotoxicant administration was delayed until hsp levels had returned to control values (144 hr after amphetamine pretreatment). Amphetamine pretreatment did not reducein vivocovalent binding to proteins of radiolabeled [3H]acetaminophen, [14C]bromobenzene, [14C]carbon tetrachloride, or [3H]cocaine, indicating that the protective effects were not due to inhibition of reactive metabolite formation from these toxicants. These results suggest that elevated levels of hsp25 and hsp70i provide protection against acetaminophen and bromobenzene hepatotoxicity.
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影响因子:
3.6
作者:
P. Bushnell;C. Gordon
通讯作者:
C. Gordon
影响因子:
5
作者:
K. Abe;T. H. Lee;M. Aoki;Y. Nitta;S. Isoyama
通讯作者:
S. Isoyama
DOI:
10.1016/s0031-6989(88)80070-5
发表时间:
1988
期刊:
Pharmacological research communications
影响因子:
--
作者:
C. Siegers;B. Steffen;M. Younes
通讯作者:
M. Younes
DOI:
--
发表时间:
1993
期刊:
European Journal of Biochemistry
影响因子:
--
作者:
A. Maio;S. C. Beck;T. Buchman
通讯作者:
T. Buchman
DOI:
10.1152/ajpgi.1994.267.3.g476
发表时间:
1994
期刊:
The American journal of physiology
影响因子:
--
作者:
Yao,T;DegliEsposti,S;Huang,L;Arnon,R;Spangenberger,A;Zern,MA
通讯作者:
Zern,MA