An ab initio HF MO theory is applied to CuX, CuX2 (X = F and Cl) and (CuCl)3. Although the detailed sequence of energy levels depends upon the basis set used, high-lying orbital energy levels have largely halogen p-like character, whereas low-lying orbital energy levels have largely Cu 3 d-like character. This is in agreement with the chemical intuition of a highly ionic character of these comp...

Purebred Duroc gilts were fed 0, 15, 30, or 60 ppm of supplemental copper with 100 or 200 ppm of supplemental iron throughout four reproductive cycles. Traits studied included: gestation, lactation, and weaning-to-estrus weight changes; total and live pigs farrowed; total and live pig birth weights and weaned weights at 3 weeks of age; and hemoglobin, hematocri t and plasma copper and iron of s...

OBJECTIVE There are some reports in which a condition of zinc deficiency and its associated outcomes with a change in concentration of serum copper among the thalassemic patients has been highlighted. The aim of this prospective study was to determine the serum zinc and copper levels in children with beta-thalassemia major. METHODS In this cross sectional study all children under 12 years aff...

Serum level of zinc, copper, β-carotene, vitamin A, and concentrations of Zn and Cu in hoof of 97multiparous Holstein dairy cows with different locomotion scores (LSs) were evaluated. Simultaneously, Znand Cu concentrations of close up, fresh and high yielding cattle rations were 77, 94, 75 and 31, 28, 22 ppm, respectively. Based on LSs, despite normal serum copper levels in all three groups, w...

background: artemia urmiana are small crustaceans that because of its non-selective filter feeder pattern potentially may absorb high level of heavy metals through their living environment. in this study, the effects of different levels of cadmium and copper on survival, catalase activity and metals bioconcentration rates in a. urmiana nauplii have been investigated. methods: the research was c...

Multiple lines of evidence indicate that the platinum-containing cancer drugs enter cells, are distributed to various subcellular compartments, and are exported from cells via transporters that evolved to manage copper homeostasis. The cytotoxicity of the platinum drugs is directly related to how much drug enters the cell, and almost all cells that have acquired resistance to the platinum drugs...

Oral squamous cell carcinoma (OSCC) is one of the most common malignant tumors. Its incidence is rated as one among the highest in the world and the use of tobacco in various forms is increasingly associated with the cause of OSCC. Levels of serum copper and iron was estimated and compared among subjects with tobacco habits and healthy controls. OSCC patients were categorized according the toba...

Cryptococcus neoformans is a major human pathogen and a cause of meningoencephalitis in immunocompromised patients. Many factors contribute to the extraordinary survivability and pathogenicity of this fungus in humans, including copper homeostasis pathways. Previous work has shown that deletion of the copper-dependent regulator Cuf1 results in decreased virulence and dissemination in brain infe...