منابع مشابه
Exposure to nanoparticles and hormesis.
Nanoparticles are particles with lengths that range from 1 to 100 nm. They are increasingly being manufactured and used for commercial purpose because of their novel and unique physicochemical properties. Although nanotechnology-based products are generally thought to be at a pre-competitive stage, an increasing number of products and materials are becoming commercially available. Human exposur...
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Arsenite is one of the most toxic chemical substances known and is assumed to exert detrimental effects on viability even at lowest concentrations. By contrast and unlike higher concentrations, we here find that exposure to low-dose arsenite promotes growth of cultured mammalian cells. In the nematode C. elegans, low-dose arsenite promotes resistance against thermal and chemical stressors and e...
متن کاملHormesis response of marine and freshwater luminescent bacteria to metal exposure.
The stimulatory effect of low concentrations of toxic chemicals on organismal metabolism, referred to as hormesis, has been found to be common in the widely used luminescence bioassay. This paper aims to study the hormesis phenomenon in both marine and freshwater luminescent bacteria, named Photobacterium phosphorem and Vibrio qinghaiensis. The effects of Cu (II), Zn (II), Cd (II) and Cr (VI) o...
متن کاملApplicable risk assessment methods in occupational and environmental exposure to nanoparticles - a narrative review
Nanoparticles (NPs) are a heterogeneous group of materials that have various applications, and their risk assessment is an essential condition. This study aimed to review the applicable risk assessment methods in occupational and environmental exposures to NPs. A literature search for articles published since 2005 in Web of Knowledge, Scopus, PubMed, Science Direct, and Google Scholar, using ap...
متن کاملMaternal Exposure to Silver Nanoparticles in Mice: Effects on Dams’ Reproductive Performance and Pups’ Neurobehavioral Ontogeny
Introduction: - Significant increase in usage of silver nanoparticles (AgNPs) in consumer products, has increased its exposures to human and animals. Although there are some reports regarding the effects of AgNPs on complex organisms, no report was found as to its effects on neurobehavioral ontogeny. Methods: To investigate the effects of maternal exposure to AgNPs on development of neu...
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ژورنال
عنوان ژورنال: Dose-Response
سال: 2010
ISSN: 1559-3258,1559-3258
DOI: 10.2203/dose-response.10-016.iavicoli