DNA Genotek's Sample Collection Blog

Comparing minimally invasive sample collection techniques for large population-based telomere length studies

Posted by Erin Carpenter on Thu, Jun 14, 2018 @ 09:06 AM

Telomere length (TL) is a biomarker of age, longevity and age-related disease. If you are an avid follower of our blog, The Genetic Link, you’ll notice that we’ve posted about TL previously (you can find the links here and here), because we find this area of research fascinating.

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Tags: DNA saliva, Oragene, DNA collection, telomere

The key to eliminating bias in genetic studies could be in our spit: expert panel discusson

Posted by Erin Carpenter on Wed, May 16, 2018 @ 14:05 PM

Are you questioning what sample-type to collect for your genetic research project? Are you considering saliva for DNA, RNA, or epigenetic analysis? What should you consider when making this selection and what challenges might you face? 

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Tags: DNA in saliva, personal genomics, DNA collection, telomere

Does marital disruption accelerate aging? An investigation into salivary telomere length, stress, and aging

Posted by Erin Carpenter on Mon, Mar 06, 2017 @ 11:03 AM

I came across a paper recently that combines two research areas that I find extremely interesting: the use of salivary telomere length (TL) as a biomarker to predict biological age, and the psychological and physiological effects of negative stress on health and longevity. The paper, titled Marital disruption is associated with shorter salivary telomere length in a probability sample of older adults by Mark Whisman et al. (2016), explores the hypothesis that marital disruption accelerates cellular aging as characterized by salivary TL. This exciting paper explores the themes of salivary telomere utility in study design, as well as the long-term consequences of stressful life events.[1]

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Tags: DNA saliva, DNA research, telomere

Telomeres & neighborhoods: the impact on children’s long term health

Posted by Shauna White on Tue, Jul 16, 2013 @ 09:07 AM

Telomeres are an emerging area of genetic research with many new studies being published that highlight fascinating results. Telomeres reside at the end of each chromosome in our bodies. They have no genetic function and are simply stretches of DNA that protect the rest of the chromosome. However, these little bits of DNA, or telomeres, are critical to healthy cell function. They become shorter each time the cell divides. Telomere shortening means the cell’s lifespan is also decreasing. Recent research shows that decrease in telomere length plays an important role in human disease and mortality with many studies showing associations between shorter telomere length and various types of cardiovascular disease, cancer, osteoporosis, cognitive function, dementia, and arthritis. On the flip side, long telomeres are related to healthy aging and overall longevity.

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Tags: Oragene, DNA collection, DNA saliva, telomere

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This blog is intended to provide information to educate readers about molecular testing and genetic sample collection and DNA Genotek products.  Some of the information on this blog represents emerging scientific research or data developed for research purposes only. More information here.

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Welcome to The Genetic Link, a blog providing new insights into DNA and RNA sample collection by DNA Genotek. DNA Genotek is a subsidiary of OraSure Technologies, Inc.

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