Telling a person's age from blood sample

Discussion in 'Chemistry' started by Plazma Inferno!, Jul 1, 2016.

  1. Plazma Inferno! Ding Ding Ding Ding Administrator

    Chemists at the University at Albany, SUNY, have described a new method for quickly but accurately determining a person’s age range based only on a blood sample. The test could one day be used to help narrow down suspects in a crime scene investigation as easily as getting results from a glucose or pregnancy test.
    Traditional DNA analysis can take up to 72 hours and carries no reliable information about a person’s age. So team of scientists focused on levels of alkaline phosphatase (ALP), an enzyme found in blood, to determine age.
    Using a procedure called a biocatalytic assay, the researchers looked for specific chemicals created by the enzyme’s activity. That allowed them to determine ALP levels, and thus age ranges, with a success rate of nearly 100 percent. Even after leaving the samples on a lab bench for 48 hours to simulate the time that may pass at a crime scene, the results were still just as accurate.

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  3. origin Heading towards oblivion Valued Senior Member

    It seems less impressive to know that 100% accuracy was only based on determining if a man was older or younger than 18 not the person's age.
    Plazma Inferno! likes this.
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