Preanalytical procedures for DNA studies

The experience of the interinstitutional multidisciplinary BioBank (BioBIM)

Raffaele Palmirotta, Giorgia Ludovici, Maria Laura De Marchis, Annalisa Savonarola, Barbara Leone, Antonella Spila, Francesco De Angelis, David Della Morte, Patrizia Ferroni, Fiorella Guadagni

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Preanalytical variables, including the anticoagulants and stabilizing agents, time, storage temperature, and methods of DNA extraction applied to blood samples, may affect quality and quantity of isolated nucleic acids for future genomic applications. Considering the large number of collected samples, standard operating procedure optimization for whole blood preservation before DNA extraction is a crucial step in a biological repository. Moreover, the future application of the biological material may not be known subsequent to its extraction. To define standard operating procedures for whole blood preservation before DNA extraction, we aimed to determine whether different combinations of anticoagulants, blood storage temperatures, and time intervals before storage at-80°C might have an impact on quality and quantity of subsequent extracted DNA. After spectrophotometer quantification, the quality and integrity of DNA were assessed by agarose gel electrophoresis, polymerase chain reaction, and real-time polymerase chain reaction methods. We observed that decrease in DNA recovery during blood storage time was more pronounced at room temperature than at 4°C. Based on our experience, we recommend as anticoagulants of choice sodium citrate and ethylenediaminetetraacetate, whereas sodium citrate theophylline adenosine dipyridamole could represent an alternative choice, excluding a priori lithium heparin and Fluoride-Oxalate. Based on the overall evaluation criteria, we conclude that the procedures necessary to preserve the whole blood before the DNA extraction may have a significant impact on downstream molecular biological applications.

Original languageEnglish
Pages (from-to)35-45
Number of pages11
JournalBiopreservation and Biobanking
Volume9
Issue number1
DOIs
Publication statusPublished - Apr 1 2011

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Blood
DNA
Blood Preservation
Anticoagulants
Polymerase chain reaction
Temperature
Oxalates
Dipyridamole
Agar Gel Electrophoresis
Excipients
Spectrophotometers
Theophylline
Electrophoresis
Fluorides
Lithium
Adenosine
Biological materials
Sepharose
Nucleic Acids
Heparin

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Cell Biology
  • Medicine (miscellaneous)

Cite this

Preanalytical procedures for DNA studies : The experience of the interinstitutional multidisciplinary BioBank (BioBIM). / Palmirotta, Raffaele; Ludovici, Giorgia; De Marchis, Maria Laura; Savonarola, Annalisa; Leone, Barbara; Spila, Antonella; De Angelis, Francesco; Morte, David Della; Ferroni, Patrizia; Guadagni, Fiorella.

In: Biopreservation and Biobanking, Vol. 9, No. 1, 01.04.2011, p. 35-45.

Research output: Contribution to journalArticle

Palmirotta, Raffaele ; Ludovici, Giorgia ; De Marchis, Maria Laura ; Savonarola, Annalisa ; Leone, Barbara ; Spila, Antonella ; De Angelis, Francesco ; Morte, David Della ; Ferroni, Patrizia ; Guadagni, Fiorella. / Preanalytical procedures for DNA studies : The experience of the interinstitutional multidisciplinary BioBank (BioBIM). In: Biopreservation and Biobanking. 2011 ; Vol. 9, No. 1. pp. 35-45.
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