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

    January 2020 in “ PeerJ ”
    Nurdiena Nasir, Jumriah Hiji, Jaime Jacqueline Jayapalan, Onn Haji Hashim
    TLDR Keratin peptides in hair might help identify gender and ethnicity.
    The study investigated the potential of using human hair shaft keratin peptide signatures to distinguish gender and ethnicity, involving 40 individuals of different ethnicities. Researchers identified significant differences in the abundance of specific keratins between genders and among Malaysian ethnic groups, with keratin types K81, K85, and K86 varying significantly between genders, and K33b, K81, K83, and K86 differing among ethnicities. Indian female subjects showed the highest mean percentage of volume contribution for certain protein spots. The study suggested that hair shaft protein profiles could serve as biomarkers for gender and ethnicity identification, but emphasized the need for larger-scale analyses and consideration of external factors to confirm these findings for forensic applications.
    Discuss this study in the Community →

    Research cited in this study

    13 / 13 results

    Related Community Posts Join

    6 / 166 results

      community IGF-1 and Peptides? Miracle molecule waiting to be found

      in Research/Science  10 upvotes 3 months ago
      The conversation discusses potential hair loss treatments focusing on stimulating IGF-1 at the follicle level using growth-factor cocktails and engineered peptides, such as Acetyl Tetrapeptide-3, Copper Tripeptide-1, Oligopeptide-20, Thymosin-β4, and Palmitoyl Tetrapeptide-7. It suggests that device-assisted delivery methods like microneedling may enhance effectiveness.

      community Has anyone heard of “Hair bloom” hair filler?

      in Treatment  4 upvotes 8 months ago
      The conversation discusses "Hair bloom" hair filler, which contains biotin, collagen, and various peptides, as a potential alternative to PRP or mesotherapy for hair loss. Opinions vary, with some suggesting it may be a cash grab or ineffective, while others believe it could complement topical minoxidil for early hair loss.

      community Growth Stimulants that aren't Minoxidil...?

      in Research/Science  7 upvotes 1 year ago
      The user is exploring hair growth stimulants other than Minoxidil, mentioning Stemoxydine, various peptides, drugs like Latanoprost and Bimatoprost, and natural remedies such as Rosemary Oil and Caffeine. They express concerns about the long-term effectiveness and safety of these alternatives and seek more information on viable options for hair regrowth.

      community Nice product I discovered, thought I would share.

      in Treatment  456 upvotes 8 months ago
      A product that makes hair look thicker and healthier without promoting regrowth. Discussions include treatments like minoxidil, finasteride, red light therapy, and a serum with caffeine and peptides, with mixed effectiveness opinions.

      community Crown slowly coming back from the dead

      in Is this regrowth?  394 upvotes 2 months ago
      A user shared their hair regrowth journey using a comprehensive treatment plan including oral minoxidil, oral dutasteride, topical minoxidil, Nizoral shampoo, microneedling, and various supplements. They reported noticeable improvement in their crown area after 4.5 months, with only minor side effects like forehead pimples.

    Related Research

    9 / 9 results