Photolysis of sulfiram: a mechanism for its disulfiram-like reaction.
Photolysis of sulfiram: a mechanism for its disulfiram-like reaction.
复制标题
硫仑的光解:其双硫仑样反应的机制。
DOI:
10.1016/0006-2952(94)90590-8
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发表时间:
1994
影响因子:
5.8
通讯作者:
Lipsky,JJ
中科院分区:
文献类型:
--
作者:
Mays,DC;Nelson,AN;Benson,LM;Johnson,KL;Naylor,S;Lipsky,JJ
Sulfiram, a drug applied topically to treat scabies, produces effects similar to those of disulfiram after subsequent ingestion of ethanol. Disulfiram, used in aversion therapy in the treatment of alcoholism, inhibits hepatic aldehyde dehydrogenase (ALDH) causing accumulation of acetaldehyde after ethanol ingestion. The increased tissue levels of acetaldehyde cause a spectrum of undesirable side-effects including flushing, nausea, vomiting, and tachcardia, which are reffered to as the disulfiram reaction. Previous studies have shown thatin vitrosulfiram is a very weak inhibitor of ALDH, but solutions of sulfiram markedly increase in potency with time. In the present study, fresh solutions of sulfiram were exposed to fluorescent room light under ambient conditions and analyzed at timed intervals by HPLC. At least eight products, including disulfiram, were formed in the light-exposed sulfiram solutions, but not in solutions kept in the dark. Structural characterization of two of the photolysis products was obtained by on-line microbore HPLC-mass spectrometry (μLC-MS) and on-line microbore HPLC-tandem mass spectrometry (μLC-MS/mS) using continuous flow-liquid secondary ion mass spectrometry (CF-LSIMS) as the primary ionization method. Sulfiram was converted to disulfiram at an initial rate of 0.7% hr, and the formation of disulfiram correlated with the increase in ALDH inhibitionin vitro. The results of this investigation show that while sulfiram is a weak inhibitor of ALDHin vitro, it is readily photoconverted to disulfiram, a very potent inhibitor of ALDH, which may explain the adverse reaction to ethanol after sulfiram therapy.
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DOI:
--
发表时间:
1978
期刊:
影响因子:
--
作者:
G. Scott;H. Sheena;A. Harriman
通讯作者:
A. Harriman
DOI:
--
发表时间:
1965
期刊:
影响因子:
--
作者:
E. Hoffmeister;D. Tarbell
通讯作者:
D. Tarbell
DOI:
--
发表时间:
1955
期刊:
影响因子:
--
作者:
R. J. Kern
通讯作者:
R. J. Kern
DOI:
--
发表时间:
1959
期刊:
影响因子:
--
作者:
C. Walling;R. Rabinowitz
通讯作者:
R. Rabinowitz
影响因子:
4.1
作者:
T. Kitson
通讯作者:
T. Kitson