Testosterone and its dimers alter DNA and tRNA morphology - Tajmir-Riahi, Heidar-Ali
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The morphology of DNA and tRNA were altered by conjugation with testosterone and its aliphatic and aromatic dimers. Structural models showed that testosterone and its dimers bind DNA and tRNA via several nucleobases with DNA forming more stable conjugates than tRNA. The loading efficacies were 30-50% for these steroid-nucleic acid adducts. Transmission electron microscopy showed major changes in DNA and tRNA morphology upon testosterone conjugation with an increase in the diameter of DNA and tRNA aggregates, indicating encapsulation of testosterone by nucleic acids.

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Produktbeschreibung
The morphology of DNA and tRNA were altered by conjugation with testosterone and its aliphatic and aromatic dimers. Structural models showed that testosterone and its dimers bind DNA and tRNA via several nucleobases with DNA forming more stable conjugates than tRNA. The loading efficacies were 30-50% for these steroid-nucleic acid adducts. Transmission electron microscopy showed major changes in DNA and tRNA morphology upon testosterone conjugation with an increase in the diameter of DNA and tRNA aggregates, indicating encapsulation of testosterone by nucleic acids.
Autorenporträt
H.A. Tajmir-Riahi : Professeur de recherche à l'Université du Québec à Trois-Rivières (UQTR), Canada. Il a été admis au Cercle d'excellence de l'Université du Québec en 2017. Il a publié 340 articles dans des revues internationales, 6 livres et 15 chapitres de livres. Intérêt de recherche : interactions des médicaments avec l'ADN, l'ARN et les protéines ; délivrance de médicaments.