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  • 1
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Journal of metastable and nanocrystalline materials Vol. 20-21 (July 2004), p. 494-498 
    ISSN: 1422-6375
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International archives of occupational and environmental health 62 (1990), S. 195-198 
    ISSN: 1432-1246
    Keywords: Lead ; ALA-dehydratase ; Erythrocyte enzymes ; free erythrocyte protoporphyrin ; Erythrocyte metabolism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Exposure of foundry workers to mixtures of different heavy metals is a very important toxicological problem. In this paper the estimation of the effects of lead, zinc, and copper on erythrocyte metabolism is presented. Concentrations of copper and zinc at work posts of the group examined did not exceed TLV, while lead concentration was 1.5 to 4 times higher than TLV. Erythrocyte metabolism was measured through activities of such glycolytic pathway enzymes as PFK, PGI, PK, aldolase and G6-PD from the hexose monophosphate pathway. Additionally the free erythrocyte protoporphyrin (FEP) level, D-ALA activity, serum GSH level, 2,3 DPG level in erythrocytes and lactic acid production during a 2-h incubation of red blood cells (RBC) was estimated. The blood-lead level, FEP level, copper concentration in erythrocytes in exposed group were significantly higher than in control group while the zinc level in erythrocytes was significantly lower. Measuring erythrocyte metabolism we showed that the activity of PGI, PFK, aldolase, lactic production and 2,3 DPG levels was significantly higher in the exposed group, probably as a result of anaerobic glycolysis activation.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 354 (1996), S. 629-632 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract By applying systemic analysis to a set of random variables, representing blood or urine concentrations of certain enzymes, lipids and metals, three direct causative factors of capillaropathy, in its early stage, i.e. leucine amino peptidase, free erythrocyte protoporphyrin and C3-complement, have been found. The interactions between the early stage of capillaropathy and these factors have been quantitatively described and a formula for prognosing the capillaropathy occurrence has been proposed. It has also been shown that the following heavy metals Pb, Cd, Cr, Cu, Mg, Fe and Ca, through their direct or indirect interactions with C3-complement, exert an influence on the occurrence and intensity of capillaropathy. Since direct causative factors of a given pathology can serve as its markers, the completeness of the set of the capillaropathy markers, formed from the causative factors, and their contributions to this pathology have been evaluated. The results were obtained by examining a population of male residents chronically exposed to heavy metals (Pb, Cu) in the environment.
    Type of Medium: Electronic Resource
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