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9.
Humangenetik ; 29(1): 79-83, 1975 Aug 29.
Article in English | MEDLINE | ID: mdl-126209

ABSTRACT

A comparative study was carried out on the hemolysates of 6 trisomic 21 and 6 normal subjects, by electrophoresis in starch gel, determining by a combined staining method both SOD-A (former IPO-dimer) and PGM activity. The enzymes were found statistically to be in a hyperactive status, the ratio of trisomic to normal values being approximately equalt to 1.4. SOD-A supraactivation is the effect of a genic dose, as demonstrated in earlier works (Sichitiu, 1973; Sichitiu et al., 1974; Sinet et al., 1974), whereas PGM hyperactivity appears to be modified secondarily, the same as the activity of other cellular enzymes in Down's disease.


Subject(s)
Chromosomes, Human, 21-22 and Y , Down Syndrome/enzymology , Phosphoglucomutase/blood , Superoxide Dismutase/blood , Trisomy , Enzyme Activation , Erythrocytes/enzymology , Genes , Humans
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