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Identify a person by analyzing his or her hair, says a new Research in US

The researchers looked at hair samples that were "up to 250 years old” along with samples from 76 living humans

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A researcher at Lawrence Livermore National Laboratories holds a sample of ancient hair. Source-VOA
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  • A new research may help identify a person by analyzing their hair
  • According to researchers, Hair contains unique protein markers which help with the identification
  • Chemist Brad Hart, Director of the Forensic Science Center and co-author of the paper said this would be game-changing in the field of forensic science

September 12, 2016: Your hair could be just as unique as your DNA, according to new research.

Writing in the journal PLOS ONE, researchers from the Lawrence Livermore National Laboratory say unique protein markers in hair could be used to make forensic and archeological identification easier.

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Moreover, the proteins are more durable over time, while DNA can deteriorate.

To reach their conclusions, the researchers looked at hair samples that were “up to 250 years old” along with samples from 76 living humans. The researchers say they’ve found 185 protein markers to date, which they think would be enough to identify an individual from a population of one million.

Lawrence Livermore National Laboratory. Pixabay
Lawrence Livermore National Laboratory. Pixabay

The researchers say they hope to find “around a hundred” core markers that could be used to “distinguish an individual among the entire world’s population using a single hair.”

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“We are in a very similar place with protein-based identification to where DNA profiling was during the early days of its development,” said LLNL chemist Brad Hart, the director of the lab’s Forensic Science Center and co-author of a paper discussing the work. “This method will be a game-changer for forensics, and while we’ve made a lot of progress toward proving it, there are steps to go before this new technique will be able to reach its full potential.” (VOA)

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  • Manthra koliyer

    This is surely a great progress in the field of science!

  • Yokeshwari Manivel

    hahahhaa ! a one more invention to the medical science .shows the growing development of different economy

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CRISPR Gene Editing can Cause Risky Collateral DNA Damage: Study

The work has implications for how CRISPR/Cas9 is used therapeutically and is likely to re-spark researchers' interest in finding alternatives to the standard CRISPR/Cas9 method for gene editing

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CRISPR/Cas9 is a type of molecular scissor technology that can alter sections of DNA in cells by cutting at specific points and introducing changes at that location.. Pixabay

The much celebrated CRISPR/Cas9 gene editing technique can cause greater genetic damage in cells than was previously thought, scientists have warned.

CRISPR/Cas9 is a type of molecular scissor technology that can alter sections of DNA in cells by cutting at specific points and introducing changes at that location.

Besides extensive use in scientific research, CRISPR/Cas9 has also been seen as a promising way to create potential genome editing treatments for diseases such as HIV, cancer or sickle cell disease.

But the new research, reported in the journal Nature Biotechnology, revealed that CRISPR/Cas9 frequently caused extensive mutations, though at a distance from the target site.

Many of the cells, in both mice and humans, had large genetic rearrangements such as DNA deletions and insertions.

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CRISPR/Cas9 frequently caused extensive mutations, though at a distance from the target site.. Pixabay

These could lead to important genes being switched on or off, which could have major implications for CRISPR/Cas9 use in therapies.

In addition, some of these changes were too far away from the target site to be seen with standard genotyping methods, the researchers said.

“This is the first systematic assessment of unexpected events resulting from CRISPR/Cas9 editing in therapeutically relevant cells, and we found that changes in the DNA have been seriously underestimated before now,” said Allan Bradley, Professor at the Wellcome Sanger Institute in London.

Also Read: New Link Found Between Alcohol, Genes And Heart Failure

“It is important that anyone thinking of using this technology for gene therapy proceeds with caution, and looks very carefully to check for possible harmful effects,” Bradley added

The work has implications for how CRISPR/Cas9 is used therapeutically and is likely to re-spark researchers’ interest in finding alternatives to the standard CRISPR/Cas9 method for gene editing.

“While it is not known if genomic sites in other cell lines will be affected in the same way, this study shows that further research and specific testing is needed before CRISPR/Cas9 is used clinically,” the researchers said. (IANS)