نتایج جستجو برای: zinc zn
تعداد نتایج: 101789 فیلتر نتایج به سال:
Human ATP13A2 (PARK9), a lysosomal type 5 P-type ATPase, has been associated with autosomal recessive early-onset Parkinson's disease (PD). ATP13A2 encodes a protein that is highly expressed in neurons and is predicted to function as a cation pump, although the substrate specificity remains unclear. Accumulation of zinc and mitochondrial dysfunction are established aetiological factors that con...
an experiment was conducted to optimize consumption of zinc and evaluate of zinc effects on quantitative and qualitative traits of winter wheat under saline soil condition. it was done by three replications in randomized complete block design. the experiment had four treatments as control without zn, 40 kg.ha-1 zn as znso4, 80 kg.ha-1 zn as znso4 in soil and 120 kg.ha-1 zn as znso4 in soil. ele...
The nutritional influence of zinc on markers of bone extracellular matrix resorption and mineralization was investigated in growing rats. Thirty male weanling rats were randomly assigned to consume AIN-93G based diets containing 2.5, 5, 7.5, 15 or 30 microg Zn/g diet for 24 days. Femur zinc increased substantially as zinc increased from 5 to 15 microg/g diet and modestly between 15 and 30 micro...
In this study, we focused on microfluidic electrochemical analysis of zinc complexes (Zn(phen)(his)Cl2, Zn(his)Cl2) and ZnS quantum dots (QDs) using printed electrodes. This method was chosen due to the simple (easy to use) instrumentation and variable setting of flows. Reduction signals of zinc under the strictly defined and controlled conditions (pH, temperature, flow rate, accumulation time ...
The honey bee is among most important pollinators threatened by environmental pollution, pest control and potentially, by products of nanotechnologies. The aim of the current study was an analysis of the neurotoxic potential of ingested zinc oxide nanomaterials (ZnO NMs) or zinc ions (Zn(2+)) on honey bees. We analysed a variety of biomarkers, including metabolic impairment, feeding rate, and s...
There is increasing evidence showing that zinc plays a key role in inducing neuronal death during central nervous system injury. However, the underlying mechanisms are poorly understood. Here we assessed the effect of zinc on ubiquitin conjugation and subsequent neurodegeneration using cultured hippocampal cells. We report that cultured neurons are vulnerable to increased level of extracellular...
Zinc (Zn) deficiency in human, which results from diets low in bioavailable zinc, could be eliminated by increasing readily plant-available Zn in soil. Root exudates and organic acids released during decomposition of soil organic matter can affect the availability of Zn. Thus, this hydroponic experiment was conducted to investigate the effect of some chelates on Zn uptake and translocation in t...
The diuretic sulfonamides furosemid (FLFur) and hydrochlorothiazid (H2Hyt) were used as ligands in zinc complexes. Spectroscopic data indicate that in [(HFur)Zn(H 2 0 )2 ]C1 0 4 and (HFur)2Zn the furosemid ligand is bound to zinc via its carboxylate and amine functions while (Fur)Zn(NH3)2 is a coordination polymer with Zn-carboxylate and Zn-sulfonimide coordination. A structure determination sh...
Superoxide dismutase 1 (SOD1) is a Cu/Zn metalloenzyme that aggregates in amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disorder. Correct metal insertion during SOD1 biosynthesis is critical to prevent misfolding; however Zn(2+) can bind to the copper-site leading to an aberrantly metallated protein. These effects of Zn(2+) misligation on SOD1 aggregation remain to be explored,...
The title zinc amide, [Zn(C12H21N2Si)2], was prepared by the metathetical reaction of [LiN(SiMe2NEt2)(C6H5)]2 with zinc dichloride. It is mononuclear and the mol-ecule is generated by twofold rotation symmetry. The central Zn(II) atom is N,N'-chelated by each of the two N-silylated anilide ligands in a highly distorted tetra-hedral environment. Two N-Si-N ligands are arranged in a cis fashion a...
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