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objective: this study was conducted to evaluate serum trace elements level, selenium (se), zinc (zn), and copper (cu) at the diagnosis of acute leukemia, and also if there is any difference in their serum levels among various subtypes of disease. subjects: fifty newly-diagnosed acute leukemia patients before starting therapy and fifty healthy subjects were entered into the study. methods: serum...

spectrometric techniques for the analysis of trace lead have developed rapidly due to the increasing need for accurate measurements at extremely low levels of this element in diverse matrices. this review covers separation and preconcentration procedures, and considers the features of the application with several spectrometric techniques. the use of an appropriate sample handling technique is a...

background : breast cancer is the most common invasive cancer in females worldwide. it accounts for 16% of all female cancers and 22.9% of invasive cancers in women. 18.2% of all cancer deaths worldwide including both males and females are from breast cancer. in this study we compared few serum elements in patients with benign and malignant breast tumor to find any related prognostic and predic...

introduction: zinc (zn) deficiency can cause significant defects in cellular immunity. hematopoietic stem cell transplantation (hsct) patients usually experience serious deficiencies of all components of the immune system. therefore, the maintenance of a normal zn status may be important in this group of patients. patients and methods: serum zn levels were analyzed in 55 patients during the hsc...

the gulf of mannar, located between india and sri lanka, is a shallow embayment of the bay of bengal. the gulf, which has been declared a bio-reserve is a highly productive area endowed with rich marine fauna including corals. in order to study the origin and nature of the sediments and paleo-environment, 2.6 m length core was collected with 5cm interval at 1320m water depths. textural studies ...

upper devonian sediments of the kuh-e zard area northwest of zefreh, central iran, arecomposed mainly of brown and grey limestones with sandstone and shale intercalations. they contain tracefossils such as chondrites isp., diplocraterion parallelum, fustiglyphus annulatus, lockeia isp., phycodesisp., and taenidium barretti. these trace fossils indicate a shallow marine environment

concentrations of heavy metals were determined in muscles of kutum (rutilus frisii kutum) collected from the central part of the southern end of the caspian sea during february 2011. except for silver (ag) and nickel (ni) which were below the limits of detection, the average levels of arsenic (as), cadmium (cd), copper (co), chromium (cr), copper (cu), iron (fe), manganese (mn), lead (pb), sele...

Any deficiency in trace element content of commercial poultry diets will decrease their performance. To prevent this situation it is necessary to supplement trace minerals in poultry diets to allow the modern birds to reach their genetic potential. The NRC publication as the most famous reference for livestock and poultry nutrients requirement has no recommendation for some less needed trace mi...