Pteridium aquilinum is a ubiquitous species considered to be one of the plants most resistant to metals. This fern meets the demands for a good bioindicator to improve environmental control. Therefore, it was of interest to survey the accumulation of Cr and Ni in the rhizome and fronds of this species collected in Lower Silesia (SW Poland) of serpentinite rich in Cr and Ni and granite poor in t...

metal pollution has become one of the most serious environmental problems resulting from human activity. phytoremediation utilizes plants to uptake contaminants and can potentially be used to remediate metal-contaminated sites. the present study investigates heavy metal uptake (cd, cr, and ni) from soil by different organs of populus alba and morus alba. for this purpose, cd (40, 80, and 160 m...

metal pollution has become one of the most serious environmental problems resulting from human activity. phytoremediation utilizes plants to uptake contaminants and can potentially be used to remediate metal-contaminated sites. the present study investigates heavy metal uptake (cd, cr, and ni) from soil by different organs of populus alba and morus alba. for this purpose, cd (40, 80, and 160 mg...

the spatial and temporal distribution of heavy metals in water, sediment and fish (dry weight basis) of buriganga river, bangladesh were determined by atomic absorption spectrophotometer. in water concentration of pb, cd, ni, cu and cr varied seasonally and spatially from 58.17 to 72.45î¼g/l, 7.08 to 12.33î¼g/l, 7.15 to 10.32î¼g/l, 107.38 to 201.29î¼g/l and 489.27 to 645.26î¼g/l, respectively. ...

Evidence suggests the existence of multiple interactions between dopamine, glutamate and nitric oxide (NO) in brain structures associated with psychomotor stimulation. The present study was undertaken to investigate the effect of the relatively selective inhibitor of the neuronal nitric oxide synthase (NOS) isoform, 7-nitroindazole (7-NI), on the development of sensitization to the locomotor st...

The aim of this study was to determine the eff ect of 7-nitroindazole (7-NI – a preferential neuronal nitric oxide synthase inhibitor) on the protective action of oxcarbazepine (OXC) and vigabatrin (VGB) – two newer antiepileptic drugs (AEDs) against pentylenetetrazole (PTZ)-induced seizures in mice. The clonic seizure activity in mice was evoked by subcutaneous injection of PTZ (100 mg/kg) and...

The main purpose of this study was to determine typical concentrations of heavy metals (HM) in wood from willows and poplars, in order to test the feasibility of phytoscreening and phytoextraction of HM. Samples were taken from one strongly, one moderately, and one slightly polluted site and from three reference sites. Wood from both tree species had similar background concentrations at 0.5 mg ...

We investigated accumulation of elements (Ca, Co, Cr, Cu, Fe, K, Mg, Mn, P, Pb, and Zn) in leaves of different ages for 11 evergreen woody plant species from serpentine soils of New Caledonia. Species were classifi ed into four categories of Ni accumulation ability: one species was a non-accumulator (<100 mg Ni/ kg), three were accumulators (100–1000 mg Ni/kg), two were hyperaccumulators (1000–...

Five young adult Rhesus monkeys were included in this study. The weight of the animals ranged from 3.4 to 4.0 kg, with a mean of 3.6 kg. Each animal was restrained and anesthetized with ketamine HC1 at 25 mg/kg IM. An intravenous fluid of 5% dextrose and water with 1/4 normal saline was initiated and profused at a maintenance rate. Each monkey received intranasal midazolam (VersedTM, Roche Phar...

this study was conducted in halgheh darreh waste disposal site in karaj in order to determine the concentration of ni and pb in halimocnemis pilifera and in region’s soil. three 50*50 m plots in the direction of the prevailing wind were selected. the first plot was close to the leachate ponds and the next two plots were located at 500 and 1000 m from the first plot, respectively. ten random sam...