نتایج جستجو برای: metallothionein
تعداد نتایج: 3738 فیلتر نتایج به سال:
Mechanical ventilation is necessary to support patients with acute lung injury, but also exacerbates injury through mechanical stress-activated signaling pathways. We show that stretch applied to cultured human cells, and to mouse lungs in vivo, induces robust expression of metallothionein, a potent antioxidant and cytoprotective molecule critical for cellular zinc homeostasis. Furthermore, gen...
Pressure treatment with chromium, copper, and arsenic (CCA) is the most prevalent method for protecting wood used in outdoor construction projects. Although these metals are tightly bound to the wood fibers and are not released under most conditions of use, we examined the bioavailability of metals in CCA pressure-treated wood dust in vitro. Cytotoxicity and metallothionein (MT) mRNA expression...
Alcoholic liver disease is associated with zinc decrease in the liver. Therefore, we examined whether dietary zinc supplementation could provide protection from alcoholic liver injury. Metallothionein-knockout and wild-type 129/Sv mice were pair-fed an ethanol-containing liquid diet for 12 weeks, and the effects of zinc supplementation on ethanol-induced liver injury were analyzed. Zinc supplem...
Metallothioneins play a key role in maintaining homeostasis of essential metalsand in protecting of cells against metal toxicity as well as oxidative damaging. Exceptinghumans, blood levels of metallothionein have not yet been reported from any animalspecies. Blood plasma samples of 9 animal species were analysed by the adsorptive transferstripping technique to obtain species specific voltammog...
The main source of cadmium in the diet is cereal or meat, especially in liver and kidney. Since the cadmium in both liver and kidney is bound to metallothionein, a heat-stable protein, the gastrointestinal absorption and metabolism of cadmium metallothionein (CdMt) was studied in detail. The selective renal cadmium deposition after oral CdMt was analogous to the studies on injected CdMt. Metall...
in equilibrium with metallothionein at pH 7.4 after 48 hours. We are currently reexamining copper binding to normal metallothionein and metallothionein from subjects with hepatolenticular degeneration under different experimental conditions. If, as Scheinberg suggests, copper is bound to metallothionein in the cuprous form, our interpretation of the data is indeed incorrect, and I will take ful...
Cytokine-induced Metallothionein Expression and Modulation of Cytokine Expression by Metallothionein
BACKGROUND The use of transgenic bacteria has been proposed as a suitable alternative for mercury remediation. Ideally, mercury would be sequestered by metal-scavenging agents inside transgenic bacteria for subsequent retrieval. So far, this approach has produced limited protection and accumulation. We report here the development of a transgenic system that effectively expresses metallothionein...
Metallothioneins (MTs) are a family of small proteins containing 61-68 amino acids with an unusually high concentration of cysteine. MT-1, the most functional and active MT in humans, has the ability to react with and enhance the detoxification of a number of metals including zinc, mercury, copper and cadmium. MT dysfunction may result, then, in many of the aetiological syndromes observed in au...
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