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Itens para a visualização no momento 11-20 of 23
Efeito do desbalanço genético e farmacológico do metabolismo oxidativo em indicadores de fertilidade masculina
(Universidade Federal de Santa Maria, 2016-12-07)
Previous studies indicate that changes in oxidative metabolism may play a role in reproductive
success. Manganese-dependent superoxide dismutase enzyme (SOD2), a key in the oxidative
balance, presents a genetic variation ...
Caenorhabditis elegans como modelo experimental para estudos toxicológicos e farmacológicos dos extratos de Luehea divaricata e Paullinia cupana
(Universidade Federal de Santa Maria, 2016-03-16)
The nematode Caenorhabditis elegans is a valuable tool for toxicological and
pharmacological studies. Despite its simple body, the most part of its genes and signaling
pathways are similar to humans, and alterations in ...
Estudo comparativo dos efeitos tóxicos induzidos por metil e etilmercúrio em Saccharomyces cerevisiae
(Universidade Federal de Santa Maria, 2016-09-02)
Mercury is a highly toxic metal found in environment mostly due to anthropological and industrial processes. Methylmercury (MeHg) originates from the methylation of inorganic mercury in aquatic environment and accumulates ...
Normóxia, hipóxia e reoxigenação em jundiás frente à exposição ao manganês
(Universidade Federal de Santa Maria, 2016-03-21)
In recent decades, the global warming has increased the incidence of the hypoxia episodes in the world, changing the freshwater and oceanographic conditions. Thus, hypoxia periods, before seasonal, have occurred more ...
Status audiológico e marcadores de estresse oxidativo de adolescentes expostos a ruídos lazer
(Universidade Federal de Santa Maria, 2016-02-29)
The aim of the study was to determine the audiological status of adolescents exposed to recreational noise and investigate the possible association between these results and oxidative stress markers. 44 individuals were ...
Efeito de dieta suplementada com selênio em carpas (Cyprinus carpio) expostas a atrazina
(Universidade Federal de Santa Maria, 2016-03-09)
The water pollution, derived from several human activities, results in harmful effects to the ecosystems involved. In order to verify the potential toxicity of xenobiotics, it is usual to use carps (Cyprinus carpio) as ...
Efeito do resveratrol e da vitamina E frente a prejuízos reprodutivos causados pelo uso de ácido valpróico em ratos machos
(Universidade Federal de Santa Maria, 2016-08-31)
Long-term treatment with valproic acid (VPA) has been associated with adverse effects
on the male reproductive function mediated by increased testicular oxidative stress.
Thus, this study evaluated the potential protective ...
Crescimento, hematologia, metabolismo e parâmetros oxidativos de jundiás alimentados com dietas contendo folha de Lippia alba
(Universidade Federal de Santa Maria, 2016-07-13)
The use of plants as antioxidants is becoming a very important alternative in the food industry and animal production. The Lippia alba is a native plant to Brazil that posses phenolic compounds and essential oils in ...
Efeito da toxicidade do alumínio sobre a resposta antioxidante endógena em três genótipos de aveia
(Universidade Federal de Santa Maria, 2016-08-10)
Aluminum (Al) is a metal that presents toxic effect on plant growth in acidic soils. In these soils, with pH under 5.5, Al can be found in its trivalent form (Al3+), which might compromise the root growth, as well as affect ...
Efeitos bioquímicos e comportamentais resultantes da exposição aguda à aflatoxina B1 em ratos
(Universidade Federal de Santa Maria, 2016-03-08)
Aflatoxins are mainly produced by Aspergillus flavus and A. parasiticus. Aflatoxin B1 (AFB1) is the most common mycotoxin and highly toxic, causing carcinogenic, mutagenic and teratogenic effects. This mycotoxin has been ...