Cr(III) exerts stronger structural effects than Cr(VI) on the human erythrocyte membrane and molecular models

Suwalsky, Mario; Castro, Ricardo I.; Villena, Fernando Pardo-Manuel de; Sotomayor, Carlos P.

doi:10.1016/j.jinorgbio.2007.11.020

Cited by 68 publications

(35 citation statements)

References 30 publications

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“…Recently, it has been established that Cr (III) affects human erythrocyte membrane to a greater extent than Cr (VI); this perturbation could decrease immune system activity. 1 Metal-containing effluents are commonly treated by chemical precipitation, 2 coagulation-sedimentation, 3 membranes systems, 4 etc. Nevertheless, the high cost of membranes and chemicals make these processes less viable.…”

Section: Introductionmentioning

confidence: 99%

Contribution of agro‐waste material main components (hemicelluloses, cellulose, and lignin) to the removal of chromium (III) from aqueous solution

García-Reyes

Rangel-Mendez

2009

J of Chemical Tech & Biotech

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BACKGROUND: Agro-waste materials can be used as biosorbents of heavy metals in aqueous solution. However, it is necessary to further study the contribution of agro-waste materials components (i.e. hemicelluloses, cellulose, and lignin) to the heavy metal ions removal from aqueous solution to better understand the biosorption mechanism, and also based on the biosorbents main components, to predict their potential to remove heavy metals.

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Section: Introductionmentioning

confidence: 99%

Contribution of agro‐waste material main components (hemicelluloses, cellulose, and lignin) to the removal of chromium (III) from aqueous solution

García-Reyes

Rangel-Mendez

2009

J of Chemical Tech & Biotech

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“…Mimo to w literaturze dostępne są też dane dotyczące toksyczności C r(III) (103). Chrom (III) może obniżać aktywność systemu immunologicznego i być przyczyną powstawania martwic (93,99). Wykazano, że przewlekłe narażenie na działanie Cr (III) może skutkować uszkodzeniem wątroby, nerek i płuc (83,111).…”

Section: Chrom W żYwieniu Zwierząt I Ludziunclassified

“…Ponadto, metal ten pełni istotną funkcję w metabolizmie węglowodanów, białek i lipidów (5,13,18,43,46,61,68,85,86,99,101), zwłaszcza cholesterolu. Związki Cr (III) wchodzą w skład enzymów, kwasów rybonukleinowych, przyspieszają krzepnięcie krwi, zwiększają aktywność β-glukuronidazy (18).…”

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Trivalent chromium (CrIII) as a trace element essential for animals and humans

Kosla¹,

Lasocka²,

Skibniewska³

et al. 2018

Medycyna Weterynaryjna

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Trivalent chromium is considered an essential element in the nutrition of both animals and humans. Animal studies confirm many beneficial effects of organic and inorganic chromium compounds on carbohydrate, protein and lipid metabolism in the body. Glucose tolerance factor (GTF) has been demonstrated to involve an active form of trivalent chromium, which sustains normal glucose metabolism. Cr(III) compounds form enzymes and ribonucleic acids, accelerate blood clotting and increase β-glucuronidase activity. Chromium also participates in antioxidant processes, in the synthesis of RNA and DNA and in the immune response, as well as affects secretion of hormones and some vitamins. It has been demonstrated that chromium improves lean body mass in animals, increases growth rate and feed conversion and improves feed intake and energy efficiency. Organic chromium reduces mortality and improves animal reproduction parameters. It also enhances immunity and strengthens response to preventive vaccination. It has been noted in many animal species that a diet low in chromium leads to deficiency symptoms, such as reduced feed intake, lower weight gains, reproductive disorders and increased lipid levels. Chromium deficiency can also result from stress. Moderate chromium deficiency is a risk factor of ischemic heart disease with myocardial infarction. Such a condition may pose a great risk of coronary artery disease. Dietary chromium requirement of an animal body is probably 300 μg Cr/kg d.w. of feed, which is usually satisfied by the ration provided. The highest concentration of chromium is found in the hair, skin and teeth, followed by the liver, kidneys, spleen, and slightly lower in the heart, muscles, pancreas, lungs, bones and brain. Chromium absorption rates in the human intestine range between 0.5 and 2% of the daily intake of inorganic Cr forms, and from 25 to 30% of the element ingested as organic complexes. Clinical studies show that the kinetics of chromium excretion from the system are complex and can be described by a multi-range model, the half-life ranging from 13 min to 192 days. Dietary chromium nanocomposite supplementation (CrNano) used in pigs nutrition has significantly increased Cr content in the blood, longissimus muscle, heart, liver, kidneys, jejunum and ileum. Chromium nanocomposite supplementation acts more effectively on the tissues and, as a consequence, increases the accumulation of the element. .

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“…As principais fontes de cromo para o ambiente são as indústrias de metalurgia, galvanoplastia, fabricação de baterias, agroquímicos, aço básico, celulose e papel, petroquímica, curtumes e fertilizantes (EL-SHERIF et al, 2013). Apesar do Cr(III) ser cerca de 300 vezes menos tóxico do que a o Cr(VI), esta forma, pode causar perturbações estruturais nas membranas eritrocitárias (SUWALSKY et al, 2008). O tratamento convencional de efluentes contendo metais envolve processos químicos e físicos, incluindo precipitação química, adsorção, processo de membrana, troca iônica, flotação, dentre outros (SELATNIA et al, 2004).…”

Section: Introductionunclassified

ESTUDOS DE EQUILÍBRIO NA SORÇÃO DE Cr(III) POR GRANULADOS BIOCLÁSTICOS

Veneu

Yokoyama

Cunha

et al. 2016

HOLOS

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RESUMOOs Granulados Bioclásticos provenientes de algas calcárias Lithothamnium calcareum são uma fonte mineral marinha e a sua utilização pode não ser recente, porém ainda necessita de diversas pesquisas para avaliar os seus verdadeiros potenciais e níveis de utilização em diferentes segmentos. Este estudo avalia a aplicação deste material para tratamento de soluções aquosas contendo íons Cr(III) através do processo de sorção. SORPTION EQUILIBRIUM STUDIES OF Cr(III) BY BIOCLASTIC GRANULES ABSTRACTBioclastic Granules from calcareous alga Lithothamnium calcareum are a marine mineral source and its use can not be recent, but still needs several researches to evaluate their true potential and utilization levels in different segments. This study assesses the application of this material for the treatment of aqueous solutions containing Cr(III) ions through the sorption process. The most significant results of removal and uptake for Cr(III) ions were obtained in a range of pH between 4 to 8, corresponding to 99,9% and 12,4 mg.

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Cr(III) exerts stronger structural effects than Cr(VI) on the human erythrocyte membrane and molecular models

Cited by 68 publications

References 30 publications

Contribution of agro‐waste material main components (hemicelluloses, cellulose, and lignin) to the removal of chromium (III) from aqueous solution

Contribution of agro‐waste material main components (hemicelluloses, cellulose, and lignin) to the removal of chromium (III) from aqueous solution

Trivalent chromium (CrIII) as a trace element essential for animals and humans

ESTUDOS DE EQUILÍBRIO NA SORÇÃO DE Cr(III) POR GRANULADOS BIOCLÁSTICOS

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