BACKGROUND Comet assay and micronucleus test have been used increasingly to evaluate the genotoxicity of many metals and their organic compounds in aquatic ecosystems. The use of endemic aquatic organisms as biological sentinels has proved useful in environmental monitoring. In this study, the genetic damage caused by methylmercury (MeHg) in Aequidens tetramerus (commonly called acará-sela) was...

Heavy metal contaminated water is a great concern because of its high toxiciy, non-biodegradability, and bioaccumulation. Therefore, non-contaminated fundamental for healthy life. Special attention paid to the health-promoting ingredients germinated whole cereal products. This study aimed (1) examine potentially harmful effects Cu, Mn, Zn on rat livers brains, (2) protective action wheat barley...

purpose: the aim of this study was to test the in vitro sensitivity of lymphocytes of patients with head and neck cancer against gamma irradiation and also to find out if the frequencies of chromosomal aberrations correlate with side effects of radiotherapy. patients and methods : peripheral blood of 101 patients with head and neck cancer was collected before the onset of radiotherapy, cultured...

Heavy metals such as cadmium, arsenic and nickel are classified as carcinogens. Although the precise mechanism of carcinogenesis is undefined, heavy metal exposure can contribute to genetic damage by inducing double strand breaks (DSBs) as well as inhibiting critical proteins from different DNA repair pathways. Here we take advantage of two previously published culture assay systems developed t...

Establishing the elemental composition and grade of base metal ores is carried out at different stages of mining and processing. It is used in advanced exploration to confi rm the feasibility of mining the ore, and in the assay of the ore concentrate. The determination of the concentration of base metals requires a technique with good accuracy and precision that is capable of generating and man...

The review summarizes studies on the detoxification effects of water-soluble humic substances (HS), which are products natural transformation organic in soils and bottom sediments that serve as detoxifying agents water solutions. HS microorganisms quite complex: neutralize free pollutants (indirect bioeffects) also stimulate protective response organisms (direct bioeffects). Prospects potential...

One of the main challenges faced in food safety is accumulation toxic heavy metals from environmental sources, which can sequentially endanger human health when they are consumed. It invaluable to establish a practical assay for determination safety. Among current detection methods, technology based on fluorescent probes, with advantages sensitivity, convenience, accuracy, cost, and reliability...

Polyphenols, as plant secondary metabolites, achieve strong antioxidant capacity by scavenging free radicals, chelating metals, and interacting with lipid membranes, proteins nucleic acids. The aim of the present study was examination applied extraction conditions (particle size material, solvent-to-solid ratio, solvent type, time) techniques (maceration, heat- ultrasound-assisted extractions) ...