A saliva sample can determine a person’s age to within five years
2011 06 23
Saliva contains the genetic secrets of a person’s age, according to researchers.
Analysing a saliva sample can determine an individual’s age to within five years, a study claims.
The U.S. discovery could help crime scene investigations and the development of personalised medicine.
Lead researcher Eric Vilain, from the University of California, Los Angeles, said: ’Our approach supplies one answer to the enduring quest for reliable markers of ageing.
’With just a saliva sample, we can accurately predict a person’s age without knowing anything else about them.’
The technique depends on a natural process called methylation which modifies the building-block chemicals which make up DNA. Methylation patterns shift with age, altering DNA and contributing to age-related diseases.
The scientists identified 88 DNA sites which strongly correlated methylation to age.
These were then narrowed down to just two genes which had the most powerful age-related links to methylation.
A test based on these two genes made it possible to predict a person’s age to within five years.
Dr Sven Bocklandt, a former UCLA genticist now with biotech company Bioline and co-author of the study, said: ’Methylation’s relationship with age is so strong that we can identify how old someone is by examining just two of the three billion building blocks that make up our genome (genetic code).’
The test could be developed into a forensic tool for crime investigators, said the scientists.
By analysing traces of saliva left in a tooth bite or on a coffee cup, experts could get a good idea of a suspect’s age.
The technique could also help the development of treatments tailored to a patient’s ’biological age’.
In a minority of the population, methylation does not correlate with chronological, or ’birthday’, age. Using the saliva test to assess the ’bio-age’ of these individuals would help physicians evaluate their risk of age-related diseases.
’Doctors could predict your medical risk for a particular disease and customise treatment based on your DNA’s true biological age, as opposed to how old you are,’ said Professor Vilain.
’By eliminating costly and unnecessary tests, we could target those patients who really need them.’
The research is published in the online journal Public Library of Science ONE.
rticle from: dailymail.co.uk
We’re All Mutants: The Average Human Has 60 New Genetic Mutations
A simple blood test that tells you how long you’ll live
Parents want child gene tests
Latest News from our Front Page
The Aeon of Horus is Ending and the Elites are Nervous as their Icons are Dying
2014 04 18
I predict there is going to be a huge resurgence of interest in European indigenous spiritual traditions from Norse to Celtic/Gaelic to Slavic and so on. Millions of Europeans are going to realise that we are the victims of Christianity and New Age garbage. Their bastardised Kabbalah, the psychic force used by Crowley and the elites to cement his Aeon ...
Easter - Christian or Pagan?
2014 04 18
Contrary to popular belief, Easter does not represent the "historical" crucifixion and resurrection of Jesus Christ. In reality, the gospel tale reflects the annual "crossification" of the sun through the vernal equinox (Spring), at which time the sun is "resurrected," as the day begins to become longer than the night.
Rather than being a "Christian" holiday, Easter celebrations date back ...
Man-Made Blood Might Be Used in Transfusions by 2016
2014 04 18
Researchers in the U.K. have created the first man-made red blood cells of high enough quality to be introduced into the human body
The premise of the HBO show and book series True Blood revolves around a technological breakthrough: scientists figure out how to synthesize artificial human blood, which, as an ample new source of non-human food, allows vampires to "come ...
The Trials of the Cherokee Were Reflected In Their Skulls
2014 04 18
Researchers from North Carolina State University and the University of Tennessee have found that environmental stressors – from the Trail of Tears to the Civil War – led to significant changes in the shape of skulls in the eastern and western bands of the Cherokee people.
The findings highlight the role of environmental factors in shaping our physical characteristics.
Our Fears May Be Shaped by Ancestral Trauma
2014 04 18
Last December, an unsettling Nature Neuroscience study found that mice who were taught to associate the smell of cherry blossoms with pain produced offspring who feared the smell of cherry blossoms, even if they had never been exposed to it before. We knew that the process was epigenetic—that it was not hard-wired in the permanent genetic structure of the mouse—but ...
|More News » |