Consulta: subjectFacets:"Acute effects"
Registros recuperados: 2
Data/hora: 10/06/2024 07:49:34

Acute intraperitoneal mercury chloride contamination and distribution in liver, muscle and gill of a neotropical fish Hoplias malabaricus (BLOCK, 1794)
Provedor de dados: 52
Autores: Jesus,Taise Bomfim de; Almeida,Priscila Gontijo Aguiar de; Vergílio,Cristiane dos Santos; Machado,André Luiz dos Santos; Carvalho,Carlos Eduardo Veiga de.
The present study investigated with the distribution of mercury chloride in muscle, liver and gills of Hoplias malabaricus contaminated through intraperitoneal injection (6 µg in 0.1mL of PBS) for a period of 24, 48, 72 and 96h. The liver, gill and muscle were analyzed for mercury content in an ICP/AES (Varian Liberty II) with vapor generating accessory (VGA 77). The muscle and liver tissues presented the same contamination pattern increasing concentrations in 24 h of exposure with a decrease in Hg concentration with 72 h and a new increase in Hg concentrations with 96 h of exposure. The Hg concentrations in contaminated organisms were always higher than the control although only for liver samples the difference was statistically significant. Liver samples...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inorganic mercury; Liver; Acute effects; Intraperitoneal contamination.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000200021

Ambient particulate air pollution from vehicles promotes lipid peroxidation and inflammatory responses in rat lung
Provedor de dados: 56
Autores: Pereira,C.E.L.; Heck,T.G.; Saldiva,P.H.N.; Rhoden,C.R.
Oxidative stress plays a major role in the pathogenesis of particle-dependent lung injury. Ambient particle levels from vehicles have not been previously shown to cause oxidative stress to the lungs. The present study was conducted to a) determine whether short-term exposure to ambient levels of particulate air pollution from vehicles elicits inflammatory responses and lipid peroxidation in rat lungs, and b) determine if intermittent short-term exposures (every 4 days) induce some degree of tolerance. Three-month-old male Wistar rats were exposed to ambient particulate matter (PM) from vehicles (N = 30) for 6 or 20 continuous hours, or for intermittent (5 h) periods during 20 h for 4 consecutive days or to filtered air (PM &amp;lt;10 µm; N = 30). Rats...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oxidative stress; Reactive oxygen species; Lipid peroxidation; Particulate air pollution; Lung inflammation; Acute effects.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007001000008