BACKGROUND It is well known that some trace elements such as zinc and copper play a significant role in many forms of hair loss. However, the effect of zinc and copper in the pathogenesis of hair loss is still unknown. OBJECTIVE The purpose of this study is to evaluate the zinc and copper status in each of four types of hair loss. METHODS A study was carried out with 30 health controls and ...

introduction: today nano-medicine tries to produce new drugs to reduce the dosage and side effects of their conventional forms. according to the interaction between zinc and opioidergic system activity, this study has investigated the effect of new kind of zinc supplement, nano zinc oxide (nzno), in compared to its conventional form (czno), in presence and absence of opioidergic system activity...

Cheilitis granulomatosa is a rare disorder of unknown etiology. The condition produces chronic and persistent swelling of one or both lips. The treatment of cheilitis granulomatosa is usually ineffective. Various forms of treatment have been used with variable success. Here I report a 40-year old woman from suburbs of Ahwaz, with persistent swelling of lower lip from 8 months ago, who had not r...

Prolonged incubation of zinc-zinc leucine aminopeptidase (bovine lens) (EC 3.4.1.1) with 0.05 M CoCl2 and M KCl in 0.2 M N-ethylmorpholine-HCl at pH 7.5 and 37 degrees yields an active enzyme in which 2 g atoms of Co2+ per 54,000 dalton subunit have replaced the Zn2+. Incubation of cobalt-cobalt leucine aminopeptidase with various AnCl2 concentrations or zinc-zinc leucine aminopeptidase with va...

Silver doped zinc oxide nanoparticles are synthesized by a solution combustion method. The samples characterized by a variety of spectroscopic and other techniques clearly reveal the presence of silver nanoparticles as well as silver clusters. The silver in the two forms was identified by careful deconvolution of X-ray photoelectron spectral results. Their formation was also confirmed by the pr...

The increase of environmental pollutants especially heavy metals derives from human industrial communities. Zinc is one of the natural elements that exist in biotic environment, plants body, and animals in different forms. Zinc has toxic and lethal effects in high concentrations on plants. Also some plants are introduced as accumulators of this element. Therefore, an investigation was carried o...