The rate of DNA synthesis in cultures of chick embryo cells is proportional to the concentration of serum added. The concentration of serum required to stimulate DNA synthesis increases with cell population density and with the duration of culture after trypsinization. The increase of the serum requirement with population density is not caused by the depletion of serum constituents. The require...

objective to evaluate the serum zinc level of the patients with simple febrile seizure and compare them with febrile children without seizure. materials & methods this prospective case - control study was performed on 60 patients aged 6 months to 6 years from apr. 2009 to jan.2010 in ghaem, imam reza and dr. sheikh hospitals in mashhad. the serum zinc level was assessed and compared between the...

conclusions the results of our study show that serum zinc level in bronchiectasis patients was lower than the control group and the difference was statistically significant. it seems that the use of zinc supplement can reduce progression of the infectious disease regarding its role in improving the immune system reactions and some unknown mechanisms. therefore, prophylactic and therapeutic use ...

Zinc is often deficient in patients with liver cirrhosis, and treatment with zinc provides short-term improvement in protein metabolism. However, the long-term effects of zinc have not been fully clarified. The present study aimed to analyze the effect of zinc on the long-term clinical course, especially hepatocarcinogenesis, in type C liver cirrhosis. Among patients with type C liver cirrhosis...

introduction: cancer and chemotherapy could decrease serum zinc level. in this study, serum zinc level was investigated at the beginning of cancer diagnosis and 3 months after chemotherapy in children with all types of cancer. method: in this cross sectional study forty-five 1-15 year old children who were newly diagnosed cancer cases (leukemia, lymphoma and solid tumor) were evaluated. patient...

Acne vulgaris is the most common cutaneous disorder affecting adolescents and young adults. Some studies have reported an association between serum zinc levels and acne vulgaris. We aimed to evaluate the serum zinc level in patients with acne vulgaris and compare it with healthy controls. One hundred patients with acne vulgaris and 100 healthy controls were referred to our clinic. Acne severity...

The serum concentrations of zinc and copper were measured in 50 patients with multiple sclerosis. Lower serum zinc levels were found compared to age- and sex-matched controls. In younger patients low serum copper concentrations were noted. Zinc concentrations in CSF were unchanged. The possibility that malabsorption of the metals causes the low serum concentrations is discussed.

Objectives: Zinc is a trace element required for the growing and developing organism and is found in quite high levels in the epidermis of the skin. Zinc deficiency is one of the most common mineral deficiencies encountered in our country where 70-80% of the daily calorie requirement is obtained from grains and grain products. The aim of our study was to determine the effect of zinc deficiency ...