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copper zinc

Afsin A Kundak, Ayhan Pektas, Aysegul Zenciroglu, Semra Ozdemir, Umit B Barutcu, Utku A Orun, Nurullah Okumus
OBJECTIVE: The aim of the present study was to determine the role of toxic elements and trace elements in the pathogenesis of conotruncal heart defects by measuring their concentrations in the first meconium specimens of the affected newborns. METHODS: Concentrations of lead, cadmium, iron, zinc, and copper were measured in 1st-day meconium specimens that were collected from 60 newborns with conotruncal heart defects (Group I) and 72 healthy newborns (Group II)...
October 18, 2016: Cardiology in the Young
Y Cedeño, M López-Alonso, M Miranda
OBJECTIVES: Defects in copper metabolism have been described in several dog breeds, and recently, it has been suggested that changes in other essential trace elements could be involved in the pathogenesis of hepatic disease. This study measured hepatic copper accumulation and its interactions with other essential trace and toxic metals in dogs diagnosed with chronic hepatitis. METHODS: Liver samples of 20 chronic hepatitis and 20 healthy dogs were collected. Samples were acid digested, and essential metals (cobalt, copper, iron, manganese, molibdenum, selenium and zinc) and toxic metals (arsenic, cadmium, mercury and lead) were analysed by inductively-coupled plasma mass spectrometry...
October 16, 2016: Journal of Small Animal Practice
Jeffrey P Johnson, William F Hunt
Bioretention cells (BRCs) are an increasingly popular Stormwater Control Measure used to mitigate the hydrologic and water quality impacts of urbanization. Previous BRC research has demonstrated a strong capacity for pollutant removal; however, long-term sequestration of pollutants within soil media can elevate concentrations to levels fostering environmental and human health risks. Soil media samples were collected from an 11 year-old BRC in Charlotte, NC, and analyzed for the accumulation and spatial distribution of zinc, copper, and phosphorus...
October 10, 2016: Journal of Environmental Management
Feng Xie, Wei Wang
The feasibility of using emulsion liquid membranes (ELMs) with the guanidine extractant LIX 7950 as the mobile carrier for detoxifying copper-containing waste cyanide solutions has been determined. Relatively stable ELMs can be maintained under suitable stirring speed during mixing ELMs and the external solution. Effective extraction of copper cyanides by ELMs only occurs at pH below 11. High copper concentration in the external phase and high volume ratio of the external phase to ELMs result in high transport rates of copper and cyanide...
October 17, 2016: Environmental Technology
Soheila Asadi, Mohammad Nabi Moradi, Nejat Khyripour, Mohammad Taghi Goodarzi, Marzieh Mahmoodi
Diabetes is a common metabolic disorder characterized by elevated blood glucose level. Trace element homeostasis causes disturbances in diabetes due to hyperglycemia. Superoxide dismutase (SOD), an antioxidant enzyme, contains zinc and copper ions as its cofactors. Defects in SOD level and activity have been observed in diabetes. Resveratrol (RSV) has displayed hypoglycemic effects and is proven to improve oxidative stress. The aim of the present study was to examine the possible effects of RSV on blood glucose level, serum copper and zinc levels, SOD, and a number of other oxidative markers in type 2 diabetic rats...
October 15, 2016: Biological Trace Element Research
Y Lin, W Zhao, Z D Shi, H R Gu, X T Zhang, X Ji, X T Zou, J S Gong, W Yao
Meat duck deep litter is considered to be an ideal environment for the evolution of bacterial antibiotic resistance if it is under poor management. The aim of this study was to characterize the accumulation of antibiotics and heavy metals in the deep litter and their role in the persistence of antibiotic resistance of Escherichia coli, and evaluate the service life of the deep litter. Samples were collected from initial, middle, and final stages of deep litter within 3 barns (zero, 4, and 8 rounds of meat duck fattening, d 34) and 9 flocks, with known consumption of antibiotics in the controlled trail...
October 14, 2016: Poultry Science
J S Osorio, F Batistel, E F Garrett, M M Elhanafy, M R Tariq, M T Socha, J J Loor
Supplying trace minerals in more bioavailable forms such as amino acid complexes (AAC) could help ameliorate the incidence of hoof disorders in peripartal dairy cows. The aim of this study was to evaluate the effects of supplementing metal AAC during the peripartal period on expression of 28 genes in corium tissue related to claw composition, oxidative stress, inflammation, chemotaxis, and transcriptional regulation. Forty-four multiparous Holstein cows received a common diet from -30 to 30 d relative to parturition and were assigned to receive an oral bolus containing either inorganic trace minerals (INO) or AAC (i...
October 13, 2016: Journal of Dairy Science
R Jiménez-Ballesta, F J García-Navarro, S Bravo, J A Amorós, C Pérez-de-Los-Reyes, M Mejías
Contamination of aquatic systems with potentially toxic trace elements (PTEs) is a major problem throughout the world. The National Park Tablas de Daimiel (NPTD) is considered to make up one of the two most important wetlands in the Biosphere Reserve called "Wet Spot." Since PTEs are good indicator of the prevailing environmental conditions and possible contamination, soil samples collected from 43 sites were analyzed in order to investigate the levels and its distribution of these elements, in the inundated floodplain area of the NPTD wetland...
October 14, 2016: Environmental Geochemistry and Health
Adesina O Odewabi, Martins Ekor
Recent studies have indicated an increased incidence of toxic neuropathies among waste management workers (WMW) possibly linked to increased detection of heavy metals in municipal solid wastes. The present study evaluated serum levels of some heavy and essential trace metals in relation to oxidant/antioxidant status of WMW. One hundred and twenty-six WMW and 84 non-WMW (control) were recruited. Metal/element concentration was measured by atomic absorption spectrophotometry and oxidant/antioxidant markers were determined using standard procedures...
October 13, 2016: Toxicology and Industrial Health
Yahya Jani, Fabio Kaczala, Charlotte Marchand, Marika Hogland, Mait Kriipsalu, William Hogland, Anders Kihl
The present research studies the characterisation and the physico-chemical properties of an excavated fine fraction (<10 mm) from a Swedish landfill, the Högbytorp. The results showed that the fine fraction represents 38% by mass of the total excavated wastes and it contains mainly soil-type materials and minerals. Higher concentrations of zinc, copper, barium and chromium were found with concentrations higher than the Swedish Environmental Protection Agency (EPA) for contaminated soil. The found moisture and organic contents of the fine fraction were 23...
October 14, 2016: Waste Management & Research
Vinod Kumar, A K Chopra, Sachin Srivastava, Jogendra Singh, Roushan Kumar Thakur
The present study was carried out to probe the agronomic response of hybrid cultivar of okra (Hibiscus esculentus L. var. JK 7315) grown in secondary treated municipal wastewater irrigated soil with field investigations. The concentrations of the municipal wastewater viz., 10%, 20%, 40%, 60%, 80% and 100% along with the control (groundwater) were used for the irrigation of the H. esculentus. The study revealed that the concentrations of the municipal wastewater showed significant (P<0.05/P<0.01) effect on the soil parameters after wastewater fertigation in comparison to groundwater in both the seasons...
October 14, 2016: International Journal of Phytoremediation
Milan Dastych, Michal Šenkyřík, Milan Dastych, František Novák, Petr Wohl, Jan Maňák, Pavel Kohout
BACKGROUND: The objective of the present study was to determine concentrations of zinc (Zn), copper (Cu), iron (Fe), selenium (Se) in blood plasma and manganese (Mn) in the whole blood in patients with long-term home parenteral nutrition (HPN) in comparison to the control group. PATIENTS AND METHODS: We examined 68 patients (16 men and 52 women) aged from 28 to 68 years on a long-term HPN lasting from 4 to 96 months. The short bowel syndrome was an indication for HPN...
October 14, 2016: Annals of Nutrition & Metabolism
Laura T Moreno-Moyano, Julien P Bonneau, José T Sánchez-Palacios, Joseph Tohme, Alexander A T Johnson
Biofortification of rice (Oryza sativa L.) with micronutrients is widely recognized as a sustainable strategy to alleviate human iron (Fe) and zinc (Zn) deficiencies in developing countries where rice is the staple food. Constitutive overexpression of the rice nicotianamine synthase (OsNAS) genes has been successfully implemented to increase Fe and Zn concentrations in unpolished and polished rice grain. Intensive research is now needed to couple this high-micronutrient trait with high grain yields. We investigated associations of increased grain Fe and Zn concentrations with agro-morphological traits of backcross twice second filial (BC2F2) transgenic progeny carrying OsNAS1 or OsNAS2 overexpression constructs under indica/japonica and japonica/japonica genetic backgrounds...
2016: Frontiers in Plant Science
Teik Min Chong, Wai-Fong Yin, Jian-Woon Chen, Samuel Mondy, Catherine Grandclément, Denis Faure, Yves Dessaux, Kok-Gan Chan
Trace metals are required in many cellular processes in bacteria but also induce toxic effects to cells when present in excess. As such, various forms of adaptive responses towards extracellular trace metal ions are essential for the survival and fitness of bacteria in their environment. A soil Pseudomonas putida, strain S13.1.2 has been isolated from French vineyard soil samples, and shown to confer resistance to copper ions. Further investigation revealed a high capacity to tolerate elevated concentrations of various heavy metals including nickel, cobalt, cadmium, zinc and arsenic...
December 2016: AMB Express
Cosima Damiana Calvano, Giovanni Ventura, Massimo Trotta, Giuliana Bianco, Tommaso R I Cataldi, Francesco Palmisano
Bacteriochlorophyll a (BChl a), a photosynthetic pigment performing the same functions of chlorophylls in plants, features a bacteriochlorin macrocycle ring (18 π electrons) with two reduced pyrrole rings along with a hydrophobic terpenoid side chain (i.e., the phytol residue). Chlorophylls analysis by matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) is not so straightforward since pheophytinization (i.e., release of the central metal ion) and cleavage of the phytol-ester linkage are invariably observed by employing protonating matrices such as 2,5-dihydroxybenzoic acid, sinapinic acid, and α-cyano-4-hydroxycinnamic acid...
October 11, 2016: Journal of the American Society for Mass Spectrometry
Yingli Yang, Ting Ma, Fan Ding, Haizhen Ma, Xiaohui Duan, Tianpeng Gao, Jian Yao
Growth inhibition and antioxidative response were investigated in wheat roots cultured in 1/4 Hoagland solution containing zinc (Zn, 500 μM), iron (Fe, 300 μM), and copper (Cu, 300 μM) in combination. Different Zn, Fe, and Cu interactions inhibited seedling growth and increased Zn, Fe, and Cu contents in roots and shoots, with the most significant inhibition due to Zn + Fe + Cu treatment. The elevation of malondialdehyde content and the loss of cell viability resulted from the increases of total and apoplastic hydrogen peroxide (H2O2) and hydroxyl radical (·OH) contents in all treated roots...
October 10, 2016: Environmental Science and Pollution Research International
Jianqiang Liang, Mingzhe Zhang, Mingmei Lu, Zhefei Li, Xihui Shen, Minxia Chou, Gehong Wei
Random mutagenesis in a symbiotic nitrogen-fixing Bradyrhizobium liaoningense CCNWSX0360 (Bln0360) using Tn5 identified five copper (Cu) resistance-related genes. They were functionally sorted into three groups: transmembrane transport (cueA and tolC); oxidation (copA); and protection of the membrane barrier (lptE and ctpA). The gene cueA, together with the upstream csoR (Cu-sensitive operon repressor), constituted a csoR-cueA divergon which plays a crucial role in Cu homeostasis. Deletion of cueA decreased the Cu tolerance of cells, and complementation of this mutant restored comparable Cu resistance to that of the wild-type...
October 11, 2016: Scientific Reports
Zahide Yalaki, Selda Ozmen, Medine Aysin Tasar, Yildiz Dallar
Breast feeding is the first and most important step of a healthy diet. Breast milk contains important vitamins and trace elements such as iron, zinc, copper, and vitamin A. The aim of our study was to evaluate the levels of hemoglobin, hematocrit, mean corpuscular volume, serum iron, iron binding capacity, ferritin, serum zinc, copper and vitamin A in three groups of infants, which were determined based on feeding practices. The infants in all groups were not given prophylactic iron in the first 6 mo. Two hundred fifty-nine infants were included in the study...
2016: Journal of Nutritional Science and Vitaminology
Lucas B Moreira, Ítalo B Castro, Marcos A Hortellani, Silvio T Sasaki, Satie Taniguchi, Mônica A V Petti, Gilberto Fillmann, Jorge E S Sarkis, Márcia C Bícego, Leticia V Costa-Lotufo, Denis M S Abessa
Tropical marine environments are rich in biodiversity and the presence of harbor activities in these areas can harm the coastal ecosystems. In this study, we assessed sediment quality of two harbors from a tropical region in Brazil by applying multiple lines-of-evidence approach. This approach included the integration of results on: (1) grain size, organic matter, organic carbon, nitrogen, phosphorus, trace metals, polycyclic aromatic hydrocarbons, linear alkylbenzenes, and tributyltin; (2) acute toxicity of whole sediments and chronic toxicity of liquid phases; and (3) benthic community descriptors...
October 7, 2016: Ecotoxicology and Environmental Safety
Sitong Chen, Bo Zhang, Li Yang, Lin Wang, Tonglai Zhang
Hydrothermal reactions of Cu(ii)/Zn(ii)/Cd(ii) with 5,5'-bistetrazole (H2BT) lead to three new energetic coordination polymers: [CuBT(H2O)]n (1), [ZnBT(H2O)2]n (2), and [CdBT(H2O)2]n (3). These crystal structures were determined by single X-ray diffraction. Compound 1 forms regular and compact 3-D frameworks and compounds 2-3 are 1-D chain structures. These compounds show prominent thermostability (Tdec = 349.1 °C for 1, 334.8 °C for 2, and 394.2 °C for 3) investigated by using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA)...
October 10, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
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