Biomedical subjects
Publications and source records attributed to A Hevia.
The karyotype 47,XY,13+ was observed in a mentally retarded four-year-old child, with numerous abnormalities and the typical dermatoglyphics of a trisomy 13. Banding analysis showed a complete extra chromosome 13.
A ring for chromosome 13 with loss of the bands p12 and q34, is reported in a person with clinical features characteristic of the loss of these specific segments.
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Reference has been made in the literature of the variability in the clinical presentation of deficiency of complex III of the respiratory chain, identifying up to the moment, four groups, the first of which is characterized by hipotonia and wearness starting at variable ages. We report a new case of mitochondrial myopathy due to deficiency of this complex and included within this first group, and consider the importance of defining the clinical and histochemical characteristics of this polymorphous entity.