Biomaterial Database

In vitro mercury uptake by human acatalasemic erythrocytes. 1979

M Ogata, and M Ikeda

Human acatalasemic erythrocytes had only 0.01 to 0.06X the uptake found in normal erythrocytes with hydrogen peroxide, and 0.06 to 0.24X the uptake without hydrogen peroxide in regard to their ability of in vitro mercury uptake from air saturated with mercury vapor. Normal erythrocytes with hydrogen peroxide took up 9.3 to 37.4X more mercury than cells without hydrogen peroxide, whereas acatalesemic cells with hydrogen peroxide took up 2.4 to 5.8X more mercury than cells without hydrogen peroxide. Similar results were obtained from normal and acatalasemic hemolysates. In addition, the concentration of hydrogen peroxide affected the uptake of mercury by both normal and acatalasemic erythrocytes. Data indicate that the catalase-hydrogen peroxide system plays a role in mercury uptake, presumably by mercury oxidation, since oxidation states of the mercury were never determined in these studies.

UI	MeSH Term	Description	Entries
D008628	Mercury	A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.
D002374	Catalase	An oxidoreductase that catalyzes the conversion of HYDROGEN PEROXIDE to water and oxygen. It is present in many animal cells. A deficiency of this enzyme results in ACATALASIA.	Catalase A,Catalase T,Manganese Catalase,Mn Catalase
D004912	Erythrocytes	Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN.	Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006861	Hydrogen Peroxide	A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials.	Hydrogen Peroxide (H2O2),Hydroperoxide,Oxydol,Perhydrol,Superoxol,Peroxide, Hydrogen
D020642	Acatalasia	A rare autosomal recessive disorder resulting from the absence of CATALASE activity. Though usually asymptomatic, a syndrome of oral ulcerations and gangrene may be present.	Acatalasemia,Hypocatalasemia,Acatalasemia Japanese Type,Acatalasemia Swiss Type,Catalase Deficiency,Hypocatalasia,Takahara Disease,Takahara's Disease,Catalase Deficiencies,Deficiencies, Catalase,Deficiency, Catalase,Disease, Takahara,Disease, Takahara's,Japanese Type, Acatalasemia,Swiss Type, Acatalasemia,Takaharas Disease