Direct quantification of mitochondrial DNA and its 4.9-kb common deletion without DNA purification

Autor: A. Dib, André Peinnequin, C. Demeilliers, C. Mouret, T. Poyot, A. Aubourg
Přispěvatelé: Centre de recherche biomédicale Bichat-Beaujon (CRB3), Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM)
Rok vydání: 2011
Předmět:
Zdroj: Analytical Biochemistry
Analytical Biochemistry, Elsevier Masson, 2011, 409 (2), pp.298-300. ⟨10.1016/j.ab.2010.10.010⟩
ISSN: 0003-2697
1096-0309
DOI: 10.1016/j.ab.2010.10.010
Popis: Quantitative analysis of mitochondrial DNA (mtDNA) and its common deletion (CD) are sensitive and early markers for mitochondrial mutations and suffering. However, the use of purified DNA can lead to quantification errors because of variable DNA extraction yields due to the significant differences in size and structure between genomic DNA (gDNA) and mtDNA. We report a real-time qPCR-based protocol directly on tissue lysate, without DNA extraction. This method, which allows both absolute and relative measure, increases the measuring accuracy of the mtDNA/gDNA ratio and leads to reliable and more reproducible results when measuring the deleted/total mtDNA ratio.
Databáze: OpenAIRE