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pro vyhledávání: '"F J Sanchez-Anzaldo"'
Publikováno v:
Biochemistry. 16:2880-2884
The Bacillus subtilis DNA-dependent RNA polymerase holoenzyme and core enzyme each contain approximately two atoms of zinc per molecule. When the dissociated subunits of the enzyme are passed through a blue dextran-Sepharose affinity column, only the
Publikováno v:
Archivos de investigacion medica. 7(3)
Uninary levels of delta-aminolevulinic acid (ALA) were determined in 93 workers exposed to lead. Control groups were made up of 32 employees of the same factories of test group and of 24 patients with no history of lead exposure. In the first group,
Publikováno v:
Archives of environmental health. 33(6)
A group of 121 patients with occupational lead exposure was studied. Saturnism was confirmed in 42 of them. Patients were given D-penicillamine in doses of 0.75 and 1.5 g/day. Urinary delta-aminolevulinic acid was selected as a toxicity biological in