aim: the healthy ranges for serum alanine aminotransferase (alt) levels are less well studied. the aim of this study was to define the upper limit of normal (uln) for serum alt levels, and to assess factors associated with serum alt activity in apparently healthy blood donors. methods: a total of 1939 blood donors were included. alt measurements were performed for all cases using the same labor...

the relationship between different indices of the copper deficiency was studied in 136 slaughtered male cattle (< 2 years). copper status has been detected as marginally deficient in 57.4, 36.4, 34.6, and 28.2% of cattle based on the copper concentrations in plasma (5.5-14.5 μmol/l) and liver (19.7-189.1 mg/kgdm), plasma ceruloplasmin levels (85.4 - 178.2 mg/l) and erythrocyte superoxide dismut...