We have demonstrated that central administration of zinc in minute amounts induces a significant antidipsogenic action in dehydrated rats as well as in rats under central cholinergic and angiotensinergic stimulation. Here we show that acute third ventricle injections of zinc also block water intake induced by central ss-adrenergic stimulation in Wistar rats (190-250 g). Central inhibition of op...

The lead and zinc sample from Goosh-e-Fill mine with 2.4%Pb, 8.0%Zn and 10.0% Fe, was used in different flotation experiments to recover lead and zinc minerals. The valuable minerals in prepared sample were oxidized and the results showed that the lead minerals floated at pH= 9.5 and 11.5, probably it can be due to existence of two or more types of lead minerals. The best result was achieved fo...

Cultured human myeloid leukemia (HL60) cells were characterized using ultrastructural cytochemical methods and differences identified when cells were compared for low (17 to 47), middle (69 to 100), and high (214 to 244) passages or to normal promyelocytes aspirated from bone marrow. Endoplasmic reticulum and transition structures (pre-Golgi compartment) of HL60 cells stained positively for per...

Ultraviolet (UV) radiation is known to cause oxidative stress, inflammation, DNA damage and apoptotic cell death; however, many details of these malign mechanism have yet to be elucidated. In this study, the exposure of adult human epidermal keratinocytes (HEKa) with UVB (>100 mJ/cm(2)) resulted in the significant increase of intracellular zinc that was released from its storage and was detecte...

objective: the aim of this study was to evaluate the effect of zinc and magnesium supplementation on glycemic control and serum insulin in type 2 diabetic patients. materials and methods: in this randomized clinical trial 70 diabetic patients who referred to yazd diabetes center were selected. subjects received 500 mg/day magnesium oxide or 100 mg/day zinc sulfate randomly for 8 weeks. at the s...

zinc is one of the most important micronutrient with essential role in biochemical regulation of the body functions. the importance of zinc in pregnancy period was widely studied in various countries. variation in zinc plasma levels during pregnancy needs more investigation, because maternal zinc deficiencies may cause some severe abnormalities in the fetus. in this study the plasma levels of z...

Zinc was electrodeposited from an acidic sulphate solution on commercial steel sheet substrates galvanostatically at 10, 20, and 100 mA/cm2. The steel substrates had an average roughness number of 1.34 microns and a high percentage of its grains had their (111) planes parallel to the plate surface. During electrodeposition at 10 mA/cm2, on some specimens, there was an intense potential fluctuat...

It has previously been established that zinc (Zn) supplementation increases bone dimensions and strength in growing rats. The present study aims at describing differences in the localization of loosely bound or free zinc ions, as revealed by autometallography (AMG), that might take place in the skeleton of growing rats following alimentary zinc depletion and supplementation. Male Wistar rats, 4...