Background & Aims of the Study: Concentrations of Cd, Hg and As were measured by atomic absorption spectrometry (AAS) in muscle, liver and gill tissues of common carp from the Shirinsu Wetland during February to March 2013. Methods: Fish samples (Cyprinus carpio) were caught from Shirinsu Wetland, western Iran from February to March 2013. Specimens were frozen in prewashed polyethylene ...

freshwater fish cirrhinus mrigala were exposed to lethal concentration (5 mg/l) for 1,2,3,4 days and sublethal concentration (1 mg/l) for 1,7,14,21 days of cypermethrin to examine the enzymes activity, in functionally three different tissues namely, gill, liver and muscle. activities of aspartate aminotransferase (aat), alanine aminotransferase (alat) and glutamate dehydrogenase (gdh) increased...

Figueiredo-Fernandes A., Ferreira-Cardoso J.V., Garcia-Santos S., Monteiro S.M., Carrola J., Matos P. & Fontaínhas-Fernandes A. 2007. Histopathological changes in liver and gill epithelium of Nile tilapia, Oreochromis niloticus, exposed to waterborne copper. Pesquisa Veterinária Brasileira 27(3):103-109. University of Trás-os-Montes and Alto Douro, Center of Studies on Technological of Environm...

Atlantic salmon is characterized with high sensitivity to low dissolved oxygen (DO) levels. Hypoxia can affect diverse biological processes consequences that be manifested immediately or delay. Effects of hypoxia on the immune system and resistance a bacterial pathogen were investigated. Two groups reared at, respectively, normal (NO, 80–100%) (LO, 60%) levels DO over 10 months after which both...

Dodecamethylcyclohexasiloxane (D6) is widely used daily in the chemical industry and exists environment; however, its eco-toxicity not well documented. A hydroponic experiment was performed to investigate effects of D6 exposure (10–1000 mg L−1) on oxidative stress induction gene expression changes crayfish (Procambarus clarkii). The results showed that superoxide dismutase (SOD) activity enhanc...

introduction : solubility of root filling materials is heavily influenced by the environment they are in contact with. this study compared the solubility of proroot mta in deionized water and synthetic tissue fluid. materials & methods: forty specimens of prepared mta were immersed in deionized water and synthetic tissue fluid (20 samples each). the solubility was assessed after 7 and 28 days. ...

This study describes aspects of the infection caused by the myxosporean genus Henneguya, which forms cysts in the bony portion of the gill filaments of Hypophthalmusmarginatus. Specimens of this catfish were acquired dead from artisanal fishermen near the town of Cametá, state of Pará, northern Brazil, between July 2011 and May 2012. They were transported in refrigerated containers to the Carlo...

introduction: the aim of this randomized clinical trial was to compare the histologic pulp tissue response to one-step direct pulp capping (dpc) and miniature pulpotomy (mp) with mineral trioxide aggregate (mta) after application of dexamethasone in healthy human premolars. methods and materials: forty intact premolars from 10 orthodontic patients, were randomly chosen for dpc ( n =20) or mp ( ...

Few studies have examined changes in salmon gill ion transporter expression during the transition from seawater to freshwater, a pivotal moment in the salmonid life cycle. Seawater-acclimated Atlantic salmon were transferred to freshwater and blood and gill tissue were sampled over 30 days of acclimation. Salmon held in seawater had stable plasma osmolality and sodium and chloride levels throug...