Biology of Metals
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Photophysical characterization of tetrahydroxyphenyl porphyrin Zn(II) and V(IV) complexes: experimental and DFT study
Biology of Metals - Tập 36 - Trang 1257-1272 - 2023
Photodynamic therapy (PDT) is a promising technique for the treatment of various diseases. In this sense, the singlet oxygen quantum yield (Φ∆) is a physical–chemical property that allows to stablish the applicability of a potential photosensitizers (PS) as a drug for PDT. In the herein report, the Φ∆ of three photosensitizers was determined: metal-free tetrahydroxyphenyl porphyrin (THPP), THPP-Zn...... hiện toàn bộ
Effect of lactoferrin on oxidative features of ceruloplasmin
Biology of Metals - Tập 22 - Trang 521-529 - 2009
In our previous report we first described a complex between lactoferrin (Lf) and ceruloplasmin (Cp) with K
d ~ 1.8 μM. The presence of this complex in colostrum that never contains more than 0.3 μM Cp questions the reliability of K
d value. We carefully studied Lf binding to Cp and investigated the enzymatic activity of the latter in the presence of ...... hiện toàn bộ
Inhibition of the biosynthesis ofN-acetylneuraminic acid by metal ions and seleniumin vitro
Biology of Metals - Tập 5 Số 2 - Trang 103-109 - 1992
Hexavalent chromium stimulation of riboflavin synthesis in flavinogenic yeast
Biology of Metals - Tập 14 - Trang 23-31 - 2001
Flavinogenic yeast overproduce riboflavin (RF) in iron-deprived media. In optimal growth media supplemented with Fe, hexavalent chromium 'Cr (VI)' treatment led to elevated RF synthesis in all cases of 37 flavinogenic strains studied. The level of RF production exceeded the rate observed at iron-deficient conditions. At sublethal Cr concentrations the RF oversynthesis over time correlated well wit...... hiện toàn bộ
Analogous copper(I) coordination in metallothionein from yeast and the separate domains of the mammalian protein
Biology of Metals - - 1992
Lead intoxication: A summary of the clinical presentation among Thai patients
Biology of Metals - Tập 19 - Trang 345-348 - 2006
Lead is an important toxic metal found in industrial communities. Due to the industrialization in the recent decade in Thailand, lead intoxication as a toxicant-related disorder becomes a new public health problem. A retrospective study on clinical presentation of hospitalized patients with diagnosis of lead intoxication during year 1990–1999 in King Chulalongkorn Memorial hospital, the largest Th...... hiện toàn bộ
Significance of the degree of synaptic Zn2+ signaling in cognition
Biology of Metals - Tập 29 - Trang 177-185 - 2015
Zinc is a trace nutrient for the brain and a signal factor to serve for brain function. A portion of zinc is released from glutamatergic (zincergic) neuron terminals in the brain. Synaptic Zn2+ signaling is involved in synaptic plasticity such as long-term potentiaion (LTP), which is a cellular mechanism of memory. The block and/or loss of synaptic Zn2+ signaling in the hippocampus and amygdala wi...... hiện toàn bộ
Association of SNPs in zinc transporter genes on seminal plasma zinc levels in humans
Biology of Metals - Tập 35 - Trang 955-965 - 2022
This study is to examine the effects of single nucleotide polymorphisms (SNPs) of SLC30A and SLC39A on seminal plasma zinc concentration. Blood and seminal plasma samples were collected from outpatients. SNPs of zinc transporters were analyzed by next Generation sequencing technology, and seminal plasma zinc concentration were determined by inductively coupled plasma optical emission spectrometry....... hiện toàn bộ
Norfloxacin Zn(II)-based complexes: acid base ionization constant determination, DNA and albumin binding properties and the biological effect against Trypanosoma cruzi
Biology of Metals - Tập 26 - Trang 813-825 - 2013
Zn(II) complexes with norfloxacin (NOR) in the absence or in the presence of 1,10-phenanthroline (phen) were obtained and characterized. In both complexes, the ligand NOR was coordinated through a keto and a carboxyl oxygen. Tetrahedral and octahedral geometries were proposed for [ZnCl2(NOR)]·H2O (1) and [ZnCl2(NOR)(phen)]·2H2O (2), respectively. Since the biological activity of the chemicals depe...... hiện toàn bộ
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