1989
DOI: 10.1159/000469044
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Characterization of the Inhibition Effect Induced by Nickel on Glucose-6-Phosphate Dehydrogenase and Glutathione Reductase

Abstract: Kinetic characterization of the inhibition effect of nickel on glucose-6-phosphate dehydrogenase (EC 1.1.1.49) (G-6-PD) and glutathione reductase (GR; EC 1.6.4.2) from Saccharomyces cerevisiae was made. The effect of nickel on G-6-PD activity is consistent with a mixed-type inhibiton pattern, with a competitive character, since the inequality k(i),(int) > k(i), (slope) shows an inverse relation between varied substrate concentrations and fractional inhibition. An inhibition effect of nickel on GR activity, whe… Show more

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Cited by 8 publications
(3 citation statements)
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“…Glutathione metabolizing enzymes play an impotant role in the protection of cells against oxidative and alkylating agents. Cartana et al (1992) similarly observed BIOTRANSFORMATION OF TNT IN TIGER SALAMANDERS organ speci"c activity of GSH-GR in rats, which may relate to the di!erent susceptibilities of di!erent organs to a toxic compound. However, there were no signi"cant di!erences between control and TNT-exposed salamanders in liver, kidneys, skin, and lungs.…”
Section: Discussionmentioning
confidence: 73%
“…Glutathione metabolizing enzymes play an impotant role in the protection of cells against oxidative and alkylating agents. Cartana et al (1992) similarly observed BIOTRANSFORMATION OF TNT IN TIGER SALAMANDERS organ speci"c activity of GSH-GR in rats, which may relate to the di!erent susceptibilities of di!erent organs to a toxic compound. However, there were no signi"cant di!erences between control and TNT-exposed salamanders in liver, kidneys, skin, and lungs.…”
Section: Discussionmentioning
confidence: 73%
“…The increased risk of cold welding and the high production costs of titanium on one hand, and the release of metal ions such as nickel by 316L steel on the other hand created needs to search for alternative alloys. Besides causing allergic reactions in patients, nickel has also been shown to inhibit the catalytic activity of enzymes (for example catalase [30] and glutathione reductase [31]). Referring to bone physiology, it has been demonstrated that catalytic activity of ALP is inhibited by metal ions like aluminum or nickel [32,33].…”
Section: Discussionmentioning
confidence: 99%
“…Toxic effects of Ni 2+ at intracellular sites are numerous and comprise inhibition of catalase,42 glutathion reductase, and glutathion peroxidase43, 44 all of which could lower the ability of cells to protect against reactive oxygen species 3. In higher concentrations (>500 μM) Ni 2+ can also cause apoptosis, histone hypoacetylation and cell cycle arrest 45.…”
Section: Discussionmentioning
confidence: 99%