Results 21 to 30 of about 86 (79)
The knowledge of the extent of DNA damage in aquatic organisms in polluted areas is an important issue because contamination may alter their health at sublethal levels.
Silvia Villar +3 more
doaj +1 more source
Mutágenos são agentes que causam alterações no material genético. Muitas substâncias são sabidamente mutagênicas, destacando-se entre elas os metais pesados, que são prejudiciais por não serem biodegradáveis, acumulando-se em diversos tecidos. Constantemente, esses metais são despejados no meio ambiente sem tratamento prévio, sendo atualmente os ...
Ludmilla Souza Campos da Silva +2 more
openaire +1 more source
OBJETIVO: Determinar se a fita de DNA de leucócitos mononucleares endógenos é alvo de fototerapia. MÉTODOS: O estudo incluiu 65 recém-nascidos a termo com idades entre 3 e 10 dias que haviam sido expostos a fototerapia intensiva (n = 23) ou convencional (
Ali Aycicek +3 more
doaj +1 more source
Resumo Introdução: trabalhadores de postos de combustíveis estão expostos às diversas substâncias químicas presentes no ambiente de trabalho, destacando-se entre elas o benzeno, devido às suas propriedades carcinogênicas.
Isabele Campos Costa Amaral +20 more
doaj +1 more source
Melatonin (MEL) acts as a powerful scavenger of free radicals and direct gonadal responses to melatonin have been reported in the literature. Few studies, however, have evaluated the effect of MEL during in vitro maturation (IVM) on bovine embryos.
Luciana Takada +4 more
doaj +1 more source
Aquaculture production is continuously growing worldwide, and marine fish farming in Brazil is still in its infancy. Intensive farming conditions may cause physiological stress to the cultured organism, which can be evaluated by citogenotoxic biomarkers.
Marina Tenório Botelho +7 more
doaj +1 more source
Agricultural workers involved in the harvest of tobacco crops are regularly exposed to large quantities of pesticides. In order to determine how this exposure to pesticides induces genetic alterations in these workers, blood samples were obtained from 77
JODEL S. ALVES +9 more
doaj +1 more source
The main advantages of single-cell gel electrophoresis (SCG) are its applicability to any eukaryotic organism and cell type, its low cost and the short time required to obtain results.
Juliana da Silva +4 more
doaj +1 more source
The objective of this work was to evaluate the effects of chlorpyrifos on earthworms and on soil functional parameters. An integrated laboratory-field study was performed in a wheat field in Argentina, sprayed with chlorpyrifos at two recommended ...
Lucas Piola +8 more
doaj +1 more source
Recently, regular and white mineral trioxide aggregate (MTA) are being used in Dentistry as retrofilling materials. Genotoxicity and cytotoxicity tests form an important part of cancer research and risk assessment of potential carcinogens. Thus, the goal
Daniel Araki Ribeiro +4 more
doaj +1 more source

