Peer Review of Potential Use of Human Hair Shaft Keratin Peptide Signatures to Distinguish Gender and Ethnicity

    January 2020
    Nurdiena Nasir, Jumriah Hiji, Jaime Jacqueline Jayapalan, Onn Haji, Hashim Corresp
    TLDR Keratin peptide signatures in hair may help identify gender and ethnicity.
    The study explored the potential of using keratin peptide signatures from human hair shafts to distinguish gender and ethnicity, as traditional DNA analysis is often not possible with hair from old crime scenes. Researchers extracted and analyzed hair shaft proteins from 40 healthy individuals aged 21 to 40 using gel electrophoresis-based proteomics. The results showed significant differences in the abundance of specific keratin peptides between genders and among ethnic groups in Malaysia. The findings suggested that keratin peptide signatures could potentially be used for forensic identification, although further research with a larger sample size was needed to substantiate these results.
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