Trace elements might play a role in the complex multifactorial pathogenesis of age-related macular degeneration (AMD). The aim of this study was to measure alterations of trace elements levels in aqueous humor of patients with non-exsudative (dry) AMD. For this pilot study, aqueous humor samples were collected from patients undergoing cataract surgery. 12 patients with dry AMD (age 77.9±6.62, f...

Abstract The influence of cobalt, copper, iron(III), manganese and zinc nitrate salts on phase transitions thermal stability ammonium (AN) has been studied discussed. Differential analysis/differential scanning calorimetry coupled with thermogravimetry mass spectrometry were used to evaluate the analyzed systems. Each salt was appropriately mixed create samples AN:salt ratios 4:1, 9:1 49:1. It ...

Constraining the timing of eukaryogenesis and divergence eukaryotic clades is a major challenge in evolutionary biology. Here, we present trace metal concentration zinc isotope data for c. 2.1 billion-year-old Francevillian Group pyritized structures, previously described as putative remnants first colonial multicellular organisms, their host black shales. Relative to rocks, structures are stro...

Arsenic is an environmental toxin that enhances the carcinogenic effect of DNA-damaging agents, such as ultraviolet radiation and benzo[a]pyrene. Interaction with zinc finger proteins has been shown to be an important molecular mechanism for arsenic toxicity and cocarcinogenesis. Arsenicals such as arsenite, arsenic trioxide (ATO), and monomethylarsonous acid (MMA(III)) have been reported to in...

The value of estimates of trace element requirements or of data on tissue trace element content for identifying and controlling trace element-related disorders is often limited by inadequate data on the relationships of such criteria to physiological performance. Investigations of metabolic events initiating early pathological responses to deficiency are beginning to suggest more effective indi...

The zinc content of mosquitoes in various developmental stages was determined by spectrographic and microchemical analysis and use of zinc(65) and found to be five to ten times higher than other trace elements. Also the concentration of zinc in the mosquito was much greater than in other insects of different biological orders. Over 90 per cent of this element was localized in the Malpighian tub...

In this study we investigated the optical and electronic properties of cobalt doped Zinc Oxide (ZnO) nanoparticles (quantum dots) fabricated by a precipitation method. We observed significant reduction in ZnO nanoparticle diameter as we increased the percentage of cobalt. UV-VIS absorption measurement show a systematic increase in bandgap from 3.40 eV to 3.69 eV as the cobalt percentage is incr...

Date fruits (Phoenix-dactylifera) consumption has significant human health benefits due to the presence of minerals and other constituents. The may be contaminated during transportation possibly storage. This research aimed at exploring mineral contents risk associated with intake date sold in Dutse, Jigawa State-Nigeria. fruit sample was obtained from market scientifically identified. shade dr...