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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
|
pubmed:dateCreated |
1986-7-18
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pubmed:abstractText |
42 different samples of human erythrocytes were tested for glutathione-peroxidase activity (GSH-Px) in an attempt to study the inhibitory effect of Bromsulphalein (BSP). The mean activity of the enzyme was 11.90 +/- 3.61 U/g Hb, with no significant difference between males and females. BSP was used at different concentrations from 1 to 45 mM and inhibited GSH-Px activity; the inhibition curve showed a sinusoidal pattern. The major effect was obtained at 30 mM BSP when almost 65% of the initial activity was inhibited. The inhibition of GSH-Px by BSP has also been confirmed using partially purified GSH-Px obtained from human erythrocytes, as well as purified bovine GSH-Px. Some difference was noted between males and females: females may be divided into two subgroups, one with a lower and a second with a higher level of GSH-Px. 1 mM BSP increased the activity in the first group, whereas it reduced the activity in the second group. The inhibition by BSP was positively correlated with the basal value of GSH-Px and this effect was particularly evident in females (r = 0.865; p less than 0.001). The possibility that GSH-Px may be inhibited by BSP would be of some importance considering the strategic role of GSH-Px in protecting the cell from oxidative attack.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:issn |
0001-5792
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
74
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
222-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3939065-Adult,
pubmed-meshheading:3939065-Erythrocytes,
pubmed-meshheading:3939065-Female,
pubmed-meshheading:3939065-Glutathione Peroxidase,
pubmed-meshheading:3939065-Hemolysis,
pubmed-meshheading:3939065-Humans,
pubmed-meshheading:3939065-Kinetics,
pubmed-meshheading:3939065-Male,
pubmed-meshheading:3939065-Sex Factors,
pubmed-meshheading:3939065-Sulfobromophthalein
|
pubmed:year |
1985
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pubmed:articleTitle |
Inhibition of erythrocyte glutathione-peroxidase by bromsulphalein.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|