this research project was conducted to evaluate bioavailability and chemical properties of different zinc sources in broiler chickens when fed by practical diets. for that, 312 day-old male ross 308 broiler chicks were fed from 8-28 day to estimate the biological availability of four zinc sources. chicks were allocated randomly to 13 experimental diets in a 3 × 4 factorial design. diets include...

The apricot plant was washed, dried, and powdered after harvesting to produce a fine powder that used in water treatment. created an alcoholic extract from the using ethanol, which then analysed GC-MS, Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy identify active components. Zinc nanoparticles were extract. FTIR, UV-Vis, SEM, EDX, TEM are characterize zinc nanopartic...

The congener profiles of polybrominated diphenyl ethers (PBDEs) in human and wildlife samples are dominated by brominated diphenyl ether (BDE) congeners 47, 99, 100, 153, and 154, all of which are components of the commercial pentaBDE mixtures commonly used in a variety of flammable consumer products. Very little information is available on the toxicokinetics of these congeners and no studies a...

Rhesus monkeys were fed a diet marginally deficient in zinc (4 ppm zinc) throughout pregnancy and were monitored for changes in hematological, biochemical, and immunological parameters. This dietary zinc level was chosen because it did not produce an overt deficiency syndrome when fed for 10 wk to nonpregnant monkeys. Deprived animals were compared to control groups fed a zinc replete (100 ppm)...

Single crystalline zinc oxide (ZnO) nanowires have been grown on Si (100) substrates by a vapor-liquid-solid (VLS) process at temperatures in the range 850-950 °C in an inert atmosphere. The VLS-grown ZnO nanowires have been characterized in detail using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), transmission electron mi...

The role of zinc, an endogenous N-methyl-d-aspartate (NMDA) receptor antagonist, in long-term potentiation (LTP) at hippocampal CA1 synapses is poorly understood. In the present study, the effect of exogenous zinc and zinc chelators on CA1 LTP was examined by using hippocampal slices from rats. CA1 LTP after tetanic stimulation (100 Hz, 1 s) was potentiated in the presence of 5 microM ZnCl(2), ...

Vegetable protein sources are often mixed with cereals for complementary feeding. Both contain high levels of phytic acid, which can inhibit trace element and mineral absorption. In adults, phytic acid has been reported to inhibit the absorption of iron, zinc, calcium and manganese but not copper. There are far fewer studies in infants. Phytic acid is a strong inhibitor of iron absorption in bo...

background: antibiotic resistant bacteria can be considered as a main problem in infection management. zinc oxide nanoparticles (zno nps), individually or in combination with antibiotics, can be considered as good candidates for struggling against drug resistant bacteria. methods: in this study, zinc oxide nanoparticles were synthesized using sol-gel method in low temperature as a cost effectiv...

Using a standard plaque assay and clinical isolates of herpes simplex virus (HSV), we have tested the ability of zinc salts to inactivate HSV. Virus was treated by incubation at 37 degrees C with zinc salts in morpholinepropanesulfonic acid-buffered culture medium and was then diluted and plated onto CV-1 cells for detection and quantitation of remaining infectious virus. Of 10 randomly chosen ...

Background: Human papillomavirus (HPV) is a large group of DNA viruses that cause skin and mucosal warts. Zinc is used in the treatment of skin diseases. Zinc has been used in the treatment of various skin and systemic diseases. Warts are benign proliferation of the skin and mucosa. The prevalence of skin warts is higher in children and its peak is in adolescence and then decreases with age. So...