Navigation Links
DNA Yield with Oragene

H.C. Birnboim
DNA Genotek, Ottawa, Ontario, Canada

Oragene gives higher DNA yields than other oral collection methods. The median yield of DNA from Oragene samples is 110 g. In comparison, buccal swabs may yield as little as 1.9 g of DNA.


Introduction
The number of studies collecting genomic DNA from a large number of individuals is increasing rapidly. Non-invasive methods and techniques that permit selfcollection are preferred because they increase compliance rates and reduce costs. For this reason, many large-scale studies now use buccal cells from saliva as the source of DNA. The two most common methods are scraping the inside of the cheek with a brush and swishing the mouth with a mouthwash. Oragene is a DNA self-collection kit that is non-invasive and intuitive to use. The donor rinses his or her mouth with water to clear food particles and then spits 2 mL of saliva into the Oragene vial. Once the vial is closed, DNA is released and stabilized at room temperature.

The amount of DNA recovered from the oral cavity can vary widely depending on the collection method (Figure 1). This technical bulletin reports the amount of DNA obtained from saliva using the Oragene kit.


Materials and Methods
Saliva samples were obtained from 208 donors. Collection and purification of DNA was carried out according to protocols supplied with the Oragene kit. DNA yield was determined by the highly specific Fluorescence/DNase method (ref. 5). The F/D method quantitates DNA using SYBR Green I dye (Molecular Probes, Inc.) and DNase treatment.


Results
The DNA yie ld of Oragene/saliva samples from 208 donors is shown in Figure 2. The median amount of DNA was 110 g. The 25th percentile was 62 g and the 75th percentile was 158 g.


Conclusions
Oragene is a non-invasive DNA self-collection kit that can be used by untrained study subjects, including children and the elderly. The median DNA yield from Oragene/saliva samples is 110 g. This is significantly higher than other oral collection methods.


References
1. Cozier, Y., Palmer, J., and Rosenberg, L. (2003) Comparison of Methods for Collection of DNA Samples by Mail in the Black Womens Health Study. AEP. 14, 117-122.

2. Harty, L., Garcia-Closas, M., Rothman, N., Reid, Y., Tucker, M., and Hartge, P. (2000) Collection of buccal cell DNA using treated cards. Cancer Epidemiology, Biomarkers & Prevention. 9, 501506.

3. Montserrat, G., Egan, K., Abruzzo, J., Newcomb, P., Titus-Ernstoff, L., Franklin, T., et al. (2001) Collection of genomic DNA from adults in epidemiological studies by buccal cytobrush and mouthwash. Cancer Epidemiology, Biomarkers & Prevention. 10, 687-696.

4. Le Marchand, L., Lum-Jones, A., Saltzman, B., Visaya, V., Nomura, A., and Kolonel, L. (2001) Feasibility of collecting buccal cell DNA by mail in a cohort study. 10, 701-703.

5. DNA Genotek Technical Bulletin PR003 Sept 30, DNA Quantifi cation Using the Fluorescence/DNase (F/D) Assay. 2004.


back to top
'"/>

Source:


Page: All 1 2

Related biology technology :

1. Yeast Protein Production System Features High Yields and One-Step Purification
2. Efficient Cleavage of Fusion Proteins to Yield Native Amino Termini
3. Combine High Yield, Great Accuracy and the Prevention of Carry-over Contamination by Using the Novel Expand High FidelityPLUS PCR System
4. ArrayScript RT: Maximize Yields of Full-length cDNA
5. Increase Protein Activity and Yield
6. High Yield Transcription for Every Application
7. Maximize Viral RNA Yield from Biological Fluid
8. Recover High Yields of Total Nucleic Acid from Formalin-fixed, Paraffin-embedded (FFPE) Tissue
9. Synthesize High Yields of Biotinylated aRNA
10. Translate High Yields of Active Protein
11. Translate High Yields of Biologically Active Proteins
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/20/2017)... June 20, 2017  Kibow Biotech Inc., a pioneer ... the issuance of a new patent covering a unique ... the U.S. Patent and Trademark Office on May 23 ... the Buzz of Bio award in 2014 in ... developing non-drug approaches to chronic disease. Renadyl™, the first ...
(Date:6/20/2017)... ... ... Do More with OHAUS , With the launch of the new laboratory equipment ... to extending its expertise across the entire laboratory to a range of life science ... for its customers to 'Do More' in the lab. , Efficiency and Safety ...
(Date:6/19/2017)... ... June 19, 2017 , ... As Vice President, ... products including training, implementation, support, and client process and SOP development. , Mr. ... previously held leadership roles for service providers and top-tier pharmaceuticals, and as an ...
(Date:6/19/2017)... King of Prussia, PA (PRWEB) , ... June 19, 2017 , ... ... by life sciences companies for over 50 years. One of the biggest challenges faced ... environment. Joining the firm’s regulatory affairs services team is Kati Abraham , who ...
Breaking Biology Technology:
(Date:4/13/2017)... 2017 UBM,s Advanced Design and Manufacturing event ... emerging and evolving technology through its 3D Printing and ... alongside the expo portion of the event and feature ... focused on trending topics within 3D printing and smart ... event will take place June 13-15, 2017 at the Jacob ...
(Date:4/11/2017)... 11, 2017 No two people are ... the New York University Tandon School of Engineering ... found that partial similarities between prints are common ... mobile phones and other electronic devices can be ... vulnerability lies in the fact that fingerprint-based authentication ...
(Date:4/5/2017)... April 5, 2017 Today HYPR Corp. ... the server component of the HYPR platform is officially ... the end-to-end security architecture that empowers biometric authentication across ... has already secured over 15 million users across the ... of connected home product suites and physical access represent ...
Breaking Biology News(10 mins):