Encontrados 16 documentos, a visualizar página 1 de 2

Biomarkers of exposure to metal dust in exhaled breath condensate: methodology ...

In occupational assessments where workers are exposed to metal dust, the liquid condensate of exhaled breath (EBC) may provide unique indication of pulmonary exposure. The main goal of this study was to demonstrate the quality of EBC to biological monitoring of human exposure. A pilot study was performed in a group of metal dust–exposed workers and a group of nonexposed individuals working in offices. Only meta...

Exhaled breath condensate as a biomonitor for metal exposure: a new analytical ...

The study of exhaled breath condensate (EBC) obtained by cooling exhaled air under conditions of spontaneous breathing is considered one of the areas with higher interest in respiratory health research. The use of EBC for elemental determination in occupational exposure requires a standard methodological procedure to implement its practice in occupational studies. EBC is an inhomogeneous sample with organic and...

Stability of core/shell quantum dots-role of pH and small organic ligands

The improvement of knowledge about the toxicity and even processability, and stability of quantum dots (QD) requires the understanding of the relationship between the QD binding head group, surface structure, and interligand interaction. The scanned stripping chronopotentiometry and absence of gradients and Nernstian equilibrium stripping techniques were used to determine the concentration of Cd dissolved from ...

Tumor carcinóide brônquico: uma imagem que persiste…?

RESUMO Introdução: O tumor carcinóide brônquico é raro, mas constitui a neoplasia maligna pulmonar primária mais frequente na idade pediátrica. Tem como principal forma de apresentação clínica a pneumonia recorrente na mesma localização, sendo diagnosticado mais frequentemente na adolescência tardia. O único tratamento potencialmente curativo é cirúrgico e o prognóstico é muito variável. Caso clínico: Os autore...

Changes in mice whole saliva soluble proteome induced by tannin-enriched diets.

Background Previous studies suggested that dietary tannin ingestion may induce changes in mouse salivary proteins in addition to the primarily studied proline-rich proteins (PRPs). The aim of the present study was to determine the protein expression changes induced by condensed tannin intake on the fraction of mouse whole salivary proteins that are unable to form insoluble tannin-protein complexes. Two-dimensi...

Functional impairment in patients with remitted bipolar disorder

O polimorfismo C(-260)-T do promotor do gene do receptor CD14 de monócitos não ...

Comportamento celular e resposta antioxidante diferenciados de Saccharomyces ce...

A fermentação do vinho é um processo microbiológico complexo que requere a presença de leveduras adaptadas a condições de stresse. No ambiente celular de organismos aeróbios ocorrem naturalmente espécies reactivas de oxigénio (ROS) como subprodutos da respiração mitocondrial. A elevada reactividade destas espécies químicas pode gerar danos moleculares que, em alguns casos, levam à morte celular. Em condições fi...

Potencial reprodutivo de touros Nelore acasalados coletivamente na proporção de...

Utilizaram-se quatro touros selecionados por meio de exame andrológico (medida da circunferência escrotal e avaliação das qualidades físicas e morfológicas do sêmen) e de comportamento sexual (libido) que os classificaram entre muito bons e excelentes. Organizaram-se dois grupos experimentais, G1 e G2, o primeiro composto por dois touros e 200 vacas, estabelecendo, assim, a proporção de um touro para 100 vacas ...

Heparan sulfate and control of cell division: adhesion and proliferation of mut...

We have examined the role of cell surface glycosaminoglycans in cell division: adhesion and proliferation of Chinese hamster ovary (CHO) cells. We used both wild-type (CHO-K1) cells and a mutant (CHO-745) which is deficient in the synthesis of proteoglycans due to lack of activity of xylosyl transferase. Using different amounts of wild-type and mutant cells, little adhesion was observed in the presence of lamin...