نتایج جستجو برای: copper accumulation

تعداد نتایج: 230041  

Journal: :Agronomy 2022

Copper (Cu) is essential to plants but can also be harmful due Fenton chemistry. Because of that, it necessary keep Cu within a narrow concentration limit. Plants evolved mechanisms sense and precisely regulate uptake accumulation avoid both deficiency toxicity. However, experience variable levels in soils, natural environments as well human’s-based farming practices that lead soils. Therefore,...

A Farahmand A KHosravan M.R SHekibaei S Zare

Background & Aims: Today, toxic effluents have created ecological and health problems in and around the industrial cities resulting in death of nearby living organisms. The aim of this research was to increase the elimination of copper and zinc from copper factory effluents in Kerman/Iran through mutation inducing in metal-resistant bacteria by using Acriflavine, Acridine orange and Ethidium br...

Journal: :Journal of environmental biology 2016
Bhalchandra Waykar Ram Petare

The concentrations of zinc, copper, cadmium and lead in surface water, sediments and two native snail species, Bellamya bengalensis and Melanoides tuberculata from Latipada reservoir were determined. The concentrations of cadmium and lead in surface water were higher than the WHO recommended limits for drinking water standards; where as those of zinc and copper were within the permissible limit...

2013
Sang Youn Lee In Hee Kim Sun Ho Yoo Dae-Ghon Kim

Wilson's disease (WD) is an autosomal recessive inherited disorder of copper metabolism that results in the accumulation of copper in the body and primarily in the liver, brain, and cornea. Copper is a toxic metal and might be associated with cancer induction. Most malignancies associated with WD are hepatocellular carcinoma and cholangiocarcinoma. Other intra-abdominal malignancies have been o...

Journal: :Anticancer research 2007
Shinobu Matsumoto Toshiko Tanaka Hideo Kurokawa Koji Matsuno Yutaka Hayashida Tetsu Takahashi

An investigation was carried out as to whether copper affected the intracellular accumulation of cisplatin (cis-diamminedichloroplatinum(II); CDDP) and whether changes in the expression of ATP7A and CTR1 were related to acquired resistance using CDDP-sensitive (KB) and -resistant (KBR/0.8, KBR/1.2) cells. Intracellular platinum accumulation and platinum-DNA adducts were significantly lower in t...

Journal: :British medical journal 1977
C Gosden A Ross N B Loudon

Copper-bearing intrauterine contraceptive devices (IUDs) removed after various times in utero were examined by scanning electron microscopy and x-ray microanalysis of the elements present. As time in utero increased these devices became increasingly calcified. This calcification may limit the release of copper from the devices and decrease the specific contraceptive effectiveness of copper over...

2015
Christine A. Phillips-Krawczak Amika Singla Petro Starokadomskyy Zhihui Deng Douglas G. Osborne Haiying Li Christopher J. Dick Timothy S. Gomez Megan Koenecke Jin-San Zhang Haiming Dai Luis F. Sifuentes-Dominguez Linda N. Geng Scott H. Kaufmann Marco Y. Hein Mathew Wallis Julie McGaughran Jozef Gecz Bart van de Sluis Daniel D. Billadeau Ezra Burstein

COMMD1 deficiency results in defective copper homeostasis, but the mechanism for this has remained elusive. Here we report that COMMD1 is directly linked to early endosomes through its interaction with a protein complex containing CCDC22, CCDC93, and C16orf62. This COMMD/CCDC22/CCDC93 (CCC) complex interacts with the multisubunit WASH complex, an evolutionarily conserved system, which is requir...

Journal: :Aquatic toxicology 2009
Loretto Contreras Daniella Mella Alejandra Moenne Juan A Correa

In order to help explain the absence of the brown kelp Lessonia nigrescens from a coastal environment chronically enriched with copper, we characterized the biochemical responses induced by copper stress in this kelp and compared them with those displayed by the copper tolerant brown alga Scytosiphon lomentaria. These algae were cultivated with increasing concentrations of copper (20, 40 and 10...

Journal: :Molecular pharmacology 2010
Stephen B Howell Roohangiz Safaei Christopher A Larson Michael J Sailor

Multiple lines of evidence indicate that the platinum-containing cancer drugs enter cells, are distributed to various subcellular compartments, and are exported from cells via transporters that evolved to manage copper homeostasis. The cytotoxicity of the platinum drugs is directly related to how much drug enters the cell, and almost all cells that have acquired resistance to the platinum drugs...

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