The use of dead, dried aquatic plants, for water removal of metals derived from industrial activities as a simple biosorbent material has been increasing in the last years. The mechanism of simultaneous metal removal (Cd2+, Ni2+, Cu2+, Zn2+ and Pb2+) by 3 macrophytes biomass (Spirodela intermedia, Lemna minor and Pistia stratiotes) was investigated. L. minor biomass presented the highest mean r...

Rice plants accumulate cadmium (Cd2+) within the grain, increasing the danger of human exposure. Natural materials have been used in soil remediation, but few studies have examined the risks (based on the bioavailability of these metals to plants) of using these materials, so the practice remains controversial. In the present study, we evaluated the effectiveness of biochar produced from sugarc...

CD2, a cell surface glycoprotein expressed on T cells and natural killer cells, can couple to signaling pathways that result in T cell proliferation. An Src-like protein tyrosine kinase, p50 ok, coprecipitates with CD2, and perturbation of CD2 by monoclonal antibodies results in an increase in the activity of p56 kk, suggesting that an interaction with p56 l~k contributes to CD2mediated signali...

BACKGROUND Several heavy metals have been shown to have toxic effects on the peripheral and central auditory system. Cadmium (Cd2+) is an environmental contaminant showing a variety of adverse effects. Given the current rate of release into the environment, the amount of Cd2+ present in the human body and the incidence of Cd2+-related diseases are expected to increase. OBJECTIVE The overall a...

Leukemic cells from a subset of children with acute lymphoblastic leukemia (ALL) express lymphoid antigens of both T lineage and B lineage, but the clinical significance of this immunophenotype is unknown. We now report the first comprehensive comparison of treatment outcomes among a large cohort of children with CD2+ CD19+ biphenotypic ALL (N = 77), B-lineage ALL (BL) (N = 1,631), or T-lineage...

The rapid and reversible upregulation of the functional activity of integrin receptors on T lymphocytes is a vital step in the adhesive interactions that occur during successful T cell recognition of foreign antigen and transendothelial migration. Although the ligation of several different cell surface receptors, including the antigen-specific CD3/T cell receptor complex, the CD2, CD7, and CD28...