نتایج جستجو برای: metal accumulation

تعداد نتایج: 342701  

Journal: :Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 2005
N J Raynal A Hontela C Jumarie

Cadmium uptake was studied in isolated adrenocortical cells of rainbow trout (Oncorhynchus mykiss) and yellow perch (Perca flavescens) to test the hypothesis that the greater sensitivity of trout cells to Cd-induced disruption of cortisol secretion observed in previous studies is correlated to higher level of metal accumulation. There was no evidence for interspecies differences in accumulation...

2013
Yu Wenjin Zou Xinqing

After the analysis of surface samples and core samples collected in Xinyanggang tidal land, the contents of Pb, Cu, Zn, and Cr were obtained and analyzed in this paper. The heavy metal accumulation rule and pollution status were studied by Index of geo-accumulation, latent ecological risk index method, and elements accumulation index method. The research suggests that (1) the contents of heavy ...

Journal: :International journal of phytoremediation 2003
Attila Barocsi Zsolt Csintalan Laszlo Kocsanyi Slavik Dushenkov J Michael Kuperberg Rafal Kucharski Peter I Richter

Soil phytoextraction is based on the ability of plants to extract contaminants from the soil. For less bioavailable metals, such as Pb, a chelator is added to the soil to mobilize the metal. The effect can be significant and in certain species, heavy metal accumulation can rapidly increase 10-fold. Accumulation of high levels of toxic metals may result in irreversible damage to the plant. Monit...

ژورنال: مجله دندانپزشکی 2015
باویسی, مرضیه , جلالیان, عزت الله , رجایی, فاطمه , مقدم, نیلوفر , چراغی, رضوانه , کی خا, فرشته ,

  Background and Aims: Tooth crowning often leads to changes in periodontal index through changes in emergence profile zone. The purpose of this study was to compare the effect of metal-ceramic with that ofAll-Ceramic restorations on the plaque a accumulation.   Materials and Methods: In this clinical trial, we used 102 teeth covered with metal-ceramic and all-ceramic restorations. Before and a...

Journal: :international journal of environmental research 2010
t.a. ahmed h.h al-hajri

the increasing need for water in the arid areas of the world has resulted in the emergence of wastewater application for agriculture and landscape. using treated wastewater in agricultural irrigation can provide more adequate supply of high quality water for human consumption, but their heavy metal applications effect must be regulated to ensure no physiological problems for both the plant and ...

Journal: :European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V 2005
Zhengrong Cui Paul R Lockman Craig S Atwood Cheng-Hsuan Hsu Anshul Gupte David D Allen Russell J Mumper

Metal ions accumulate in the brain with aging and in several neurodegenerative diseases. Aside from the copper storage disease, Wilson's disease, recent attention has focused on the accumulation of zinc, copper and iron in the Alzheimer's disease (AD) brain and the accumulation of iron in Parkinson's disease. In particular, the parenchymal deposition of beta-amyloid (Abeta) and its interaction ...

Journal: :applied biotechnology reports 0
mohammad amin sharif applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran ali mohammad latifi applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran mohammad ali amani applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran fatemeh shakeri applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran morteza mirzaei applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran parvin noroozimoghadam applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran

application   of plants to remove heavy metals from soil (phytoremediation) is   expanding due to its cost-effectiveness as compared to conventional methods   and it has shown a great potential. since contaminants such as pb have a   limited bioavailability in the soil, methods to facilitate their   translocation to the shoots and roots of plants are required for efficient   phytoremediation. t...

Abdul Ghani,

Background: A pot experiment was conducted to determine the toxic effects of some heavy metals on the plant growth and seed yield of maize (Zea mays L.). Materials and Metheds: Heavy metals Mn, Pb, Cd, Cr and Co individually and in combinations were added as chloride salts in solutions to the pots before sowing. The test plants for were harvested after 80 days of germination and evaluated f...

رضایی, حسن, فرهانی, محمود, نمرودی, سمیه,

Background and purpose: Heavy metals can enter into animals’ body through consumption of contaminated food and water and leave toxic effects on different organs. Considering the potential public health risk posed by heavy metal contamination, information about concentration of heavy metals in animals can help in analyzing the suitability of ecosystems. Materials and methods: This study...

2013
Cornelia Konlechner Mine Türktaş Ingrid Langer Marek Vaculík Walter W. Wenzel Markus Puschenreiter Marie-Theres Hauser

Salix caprea is well suited for phytoextraction strategies. In a previous survey we showed that genetically distinct S. caprea plants isolated from metal-polluted and unpolluted sites differed in their zinc (Zn) and cadmium (Cd) tolerance and accumulation abilities. To determine the molecular basis of this difference we examined putative homologues of genes involved in heavy metal responses and...

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