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Sonia Melino et al.
The FEBS journal, 281(3), 657-672 (2013-11-14)
Natural antimicrobial peptides represent a primordial mechanism of immunity in both vertebrate and nonvertebrate organisms. Among them, histatins belong to a family of human salivary metal-binding peptides displaying potent antibacterial, antifungal and wound-healing activities. These properties, along with the ability
Wolfgang Maret
Metal ions in life sciences, 13, 389-414 (2014-01-29)
The vast knowledge of the physiologic functions of zinc in at least 3000 proteins and the recent recognition of fundamental regulatory functions of zinc(II) ions released from cells or within cells links this nutritionally essential metal ion to numerous diseases.
Helena Stecka et al.
Environmental monitoring and assessment, 186(10), 6145-6155 (2014-05-30)
A simple and fast solid phase extraction procedure was developed to pre-concentrate traces of Cu and Zn prior to their determination in honey samples by flame atomic absorption spectrometry. The sample preparation included dissolution of honey samples and the passage
Georges Chreifi et al.
Biochemistry, 53(25), 4216-4223 (2014-05-14)
The nitric oxide synthase (NOS) dimer is stabilized by a Zn(2+) ion coordinated to four symmetry-related Cys residues exactly along the dimer 2-fold axis. Each of the two essential tetrahydrobiopterin (H4B) molecules in the dimer interacts directly with the heme
Laura M Lamberti et al.
Nutrients, 5(11), 4715-4740 (2013-11-29)
Evidence supporting the impact of therapeutic zinc supplementation on the duration and severity of diarrhea among children under five is largely derived from studies conducted in South Asia. China experiences a substantial portion of the global burden of diarrhea, but
Charley C Staats et al.
Frontiers in cellular and infection microbiology, 3, 65-65 (2013-10-18)
Zinc is a ubiquitous metal in all life forms, as it is a structural component of the almost 10% of eukaryotic proteins, which are called zinc-binding proteins. In zinc-limiting conditions such as those found during infection, pathogenic fungi activate the
Zhengquan Li et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 10(22), 5823-5828 (2004-10-09)
A solution surface-erosion route was successfully employed to produce one-dimensional (1D) ZnO nanostructures. ZnO nanorod arrays and three-dimensional urchin-like assemblies could be selectively obtained with different manipulations. In this process, zinc foil was introduced to an organic solution system and
K Ryan Wessells et al.
The Journal of nutrition, 144(12), 2050-2058 (2014-11-21)
Biomarkers of iron [plasma ferritin (pF)], vitamin A [retinol binding protein (RBP)], and zinc status [plasma zinc (pZn)] are affected by the acute phase response, independent of micronutrient status. The objective of these analyses was to assess how asymptomatic malaria
Dönem Avci et al.
Molecular cell, 56(5), 630-640 (2014-12-03)
Proteolysis by aspartyl intramembrane proteases such as presenilin and signal peptide peptidase (SPP) underlies many cellular processes in health and disease. Saccharomyces cerevisiae encodes a homolog that we named yeast presenilin fold 1 (Ypf1), which we verify to be an
Susan J Zunino et al.
The British journal of nutrition, 112(3), 369-380 (2014-05-17)
Obese individuals are at an increased risk of developing CVD, hypertension, type 2 diabetes, and bacterial and viral infections when compared with the normal-weight population. In a 9-week randomised, double-blind, cross-over study, twenty-four obese subjects aged between 20 and 60
Metals: setting a trap for copper.
Valeria Culotta
Nature chemical biology, 10(12), 986-987 (2014-10-27)
Yanhui Shi et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(26), 9390-9395 (2014-07-01)
Multicomponent self-assembly, wherein two unique donor precursors are combined with a single metal acceptor instead of the more common two-component assembly, can be achieved by selecting Lewis-basic sites and metal nodes that select for heteroligated coordination spheres. Platinum(II) ions show
Rebecca G Mitchell et al.
Environmental pollution (Barking, Essex : 1987), 187, 162-169 (2014-02-08)
Urban gardens provide affordable fresh produce to communities with limited access to healthy food but may also increase exposure to lead (Pb) and other soil contaminants. Metals analysis of 564 soil samples from 54 New York City (NYC) community gardens
Caroline M Rufo et al.
Nature chemistry, 6(4), 303-309 (2014-03-22)
Enzymes fold into unique three-dimensional structures, which underlie their remarkable catalytic properties. The requirement to adopt a stable, folded conformation is likely to contribute to their relatively large size (>10,000 Da). However, much shorter peptides can achieve well-defined conformations through
S S Park et al.
Journal of wound care, 24(1), 23-33 (2014-12-30)
Wound healing is enhanced in the presence of an external electrical field. The purpose of this study was first to investigate whether microelectric potentials (EPs) can be generated when the innovative design of a silver (Ag)- and zinc (Zn)-printed wound
Xuan-Yu Min et al.
International journal of radiation biology, 90(10), 909-913 (2014-05-16)
To develop a new biological dosimeter based on serum zinc concentration. Male mice (8 weeks old) were exposed to different doses (0, 1.0, 2.0, 4.0, or 8.0 Gy) of gamma rays from a (60)Co source. Blood was then collected from
Zinc and copper toxicity in host defense against pathogens: Mycobacterium tuberculosis as a model example of an emerging paradigm.
Olivier Neyrolles et al.
Frontiers in cellular and infection microbiology, 3, 89-89 (2013-12-19)
Yang Liu et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 13(23), 6667-6673 (2007-05-31)
Well-aligned zinc oxide microrod and microtube arrays with high aspect ratios were fabricated on zinc foil by a simple solution-phase approach in an aqueous solution of ethylenediamine (en). The shape of the ZnO microstructures can be easily modulated from rods
Brittany L Mortensen et al.
Journal of bacteriology, 196(14), 2616-2626 (2014-05-13)
Acinetobacter baumannii is a leading cause of ventilator-associated pneumonia in intensive care units, and the increasing rates of antibiotic resistance make treating these infections challenging. Consequently, there is an urgent need to develop new antimicrobials to treat A. baumannii infections.
Jun-Hui Choi et al.
Journal of bioscience and bioengineering, 118(4), 372-377 (2014-04-22)
A thrombolytic protease named kitamase possessing anticoagulant property was purified from edible and medicinal plant Aster yomena (Kitam.) Honda. Kitamase showed a molecular weight of 50 kDa by SDS-PAGE and displayed a strong fibrin zymogram lysis band corresponding to the similar
A Di Veroli et al.
Chemosphere, 112, 9-17 (2014-07-23)
Mouthpart deformities of Chironomus riparius larvae (Diptera) have been investigated to evaluate the toxic effects of contamination by heavy metals in the Genna Stream (Central Italy), situated in an area subjected to intensive swine farms (40000 heads). The livestock farming
Xiang Sheng et al.
Biochemistry, 53(27), 4455-4466 (2014-06-26)
Pyruvate carboxylase (PC) catalyzes the carboxylation of pyruvate to produce oxaloacetate. Its activity is directly related to insulin release and thus PC has recently attracted great interest as a potential target for diabetes treatment. In this article, the catalytic mechanism
Kohei Takeshita et al.
Nature structural & molecular biology, 21(4), 352-357 (2014-03-04)
The voltage-gated proton channel Hv1 (or VSOP) has a voltage-sensor domain (VSD) with dual roles of voltage sensing and proton permeation. Its gating is sensitive to pH and Zn(2+). Here we present a crystal structure of mouse Hv1 in the
Priscilla K Walker et al.
Health physics, 106(4), 523-527 (2014-02-25)
Beam shaping in scattered and uniform scanned proton beam therapy (PBT) is made commonly by brass apertures. Due to proton interactions, these devices become radioactive and could pose safety issues and radiation hazards. Nearly 2,000 patient-specific devices per year are
Johan Hattne et al.
Nature methods, 11(5), 545-548 (2014-03-19)
X-ray free-electron laser (XFEL) sources enable the use of crystallography to solve three-dimensional macromolecular structures under native conditions and without radiation damage. Results to date, however, have been limited by the challenge of deriving accurate Bragg intensities from a heterogeneous
Beatriz Garrido-Rodriguez et al.
Chemosphere, 107, 379-385 (2014-01-29)
Batch type and column experiments were used to study competitive adsorption-desorption and transport for Cd, Cu, Ni and Zn in a mine soil, both un-amended and amended with mussel shell. Batch type experiments showed that adsorption was affected by the
Marcella C Galvão et al.
Life sciences, 120, 54-60 (2014-12-03)
Previous investigations by our group have shown that prenatal treatment with lipopolysaccharide (LPS; 100 μg/kg, intraperitoneally) on gestation day (GD) 9.5 in rats, which mimics infections by Gram-negative bacteria, induces short- and long-term behavioral and neuroimmune changes in the offspring.
Ida Beathe Overjordet et al.
The Science of the total environment, 502, 548-556 (2014-10-10)
Seasonal fluctuations in mercury (Hg), cadmium (Cd), zinc (Zn), copper (Cu) and selenium (Se) concentrations were studied in black-legged kittiwakes (Rissa tridactyla) from Kongsfjorden, Svalbard (79°57'N, 12°12'E). Element concentrations were determined in muscle and liver tissue in kittiwakes collected in
Manuela Mellone et al.
Journal of neurochemistry, 132(2), 159-168 (2014-10-17)
Zinc (Zn(2+) ) is believed to play a relevant role in the physiology and pathophysiology of the brain. Hence, Zn(2+) homeostasis is critical and involves different classes of molecules, including Zn(2+) transporters. The ubiquitous Zn(2+) transporter-1 (ZNT-1) is a transmembrane
Woon Ju Song et al.
Science (New York, N.Y.), 346(6216), 1525-1528 (2014-12-20)
The generation of new enzymatic activities has mainly relied on repurposing the interiors of preexisting protein folds because of the challenge in designing functional, three-dimensional protein structures from first principles. Here we report an artificial metallo-β-lactamase, constructed via the self-assembly
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