نتایج جستجو برای: urine cadmium
تعداد نتایج: 88624 فیلتر نتایج به سال:
The heavy metal cadmium is a non-degradable pollutant. By screening the effects of a panel of metal ions on the phosphatase activity, we unexpectedly identified cadmium as a potent inhibitor of PPM1A and PPM1G. In contrast, low micromolar concentrations of cadmium did not inhibit PP1 or tyrosine phosphatases. Kinetic studies revealed that cadmium inhibits PPM phosphatases through the M1 metal i...
Nitrate in serum and urine was assayed by a modification of the cadmium-reduction method; the nitrite produced was determined by diazotization of sulfanilamide and coupling to naphthylethylene diamine. After samples were deproteinized with Somogyi reagent, the nitrate was reduced by Cu-coated Cd in glycine buffer at pH 9.7 (2.5 to 3 g of Cd granules for a 4-mL reaction mixture). The reduction f...
Cadmium is a worldwide environmental toxicant responsible for a range of human diseases including cancer. Cellular injury from cadmium is minimized by stress-responsive detoxification mechanisms. We explored the genetic requirements for cadmium tolerance by individually screening mutants from the fission yeast (Schizosaccharomyces pombe) haploid deletion collection for inhibited growth on agar ...
The elimination of cadmium in feces was studied in a group of 15 male workers exposed to cadmium oxide dust in a nickel-cadmium battery factory. The elimination of cadmium in feces was on the average 619 and 268 microgram/day in seven smokers and eight nonsmokers, respectively. The corresponding ranges were 97-2577 and 31-1102 microgram/day. The cadmium concentrations in blood were significantl...
The free grazing habits of camels from various sources may cause heavy metals to bioaccumulate in their tissues and organs, possibly resulting higher amounts these toxic substances bodies over time. aim this study was assess the exposure impact lead (Pb) cadmium (Cd) on bull Lassi breed, aged 7 8 years, at a site near industrial area another two non-industrial sites, analyze presence metals. Sa...
Cadmium (Cd) is a cumulative element with a biological half-life of > 10 years in humans. The total amount of Cd accumulated in the liver and in the kidney can be measured in vivo by neutron activation (or x-ray fluorescence), but this technique does not necessarily measure the fraction that is biologically active. At low exposure (i.e., general environmental exposure or moderate occupational e...
This study evaluated blood and urine cadmium (Cd) levels and human exposure factors for residents in an abandoned metal mine in Korea. We collected blood, urine, soil, water, and rice grain samples to analyze Cd concentrations and analyzed heavy metal concentration patterns in soil. We estimated the major exposure factor of Cd through non-carcinogenic risk assessment depending on exposure route...
AIM To determine the effects of polyphenol-rich extract of the leaves of Vernonia amygdalina (PEVA) on the feeding pattern of rats that were exposed to cadmium (Cd) toxicity. MATERIALS AND METHODS Thirty male Wistar rats, weighing 160-180 g, were divided into 6 groups of 5 rats each as follows; Group 1 received distilled water orally (0.2 ml/100 g), daily, throughout the period of study. Grou...
FOULKES, E. C. Excretion and retention of cadmium, zinc, and mercury by rabbit kidney. Am. J. Physiol. 227(6) : 1356-1360. 1974.Mean renal artery-to-vein transit times (Z) of logCd, 65Zn, or zo3Hg were compared to those of Evans blue (EB) and inulin in rabbits. All three klements were fully recovered in venous plasma, where they slightly preceded inulin, although 7 exceeded &. Competition for t...
BACKGROUND Welding can produce dangerous fumes containing various metals especially carcinogenic ones. Occupational exposure to welding fumes is associated with lung cancer. Therefore, welders in Gas Transmission Pipelines are known as a high-risk group. This study was designed to determinate the amounts of metals Cr, Ni, and Cd in breathing zone and urine of welders and to assess the possibili...
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