Characteristic Microstructure of Curved Human Hair

    July 2010 in “ International Journal of Cosmetic Science ”
    Shinobu Nagase, Takao Shinozaki, Masaru Tsuchiya, Hiroji Tsujimura, Yoshinori Masukawa, Naoki Satoh, Takashi Itou, Kenichi Koike
    TLDR Curved human hair has different structures on its convex and concave sides.
    The study investigated the microstructure of curved human hair and found significant differences between the convex and concave sides. Fluorescein isothiocyanate permeated faster on the convex side, indicating structural differences. Transmission electron microscopy (TEM) showed smaller, dispersed macrofibrils on the convex side and larger, fused macrofibrils on the concave side. The alignment of intermediate filaments was helical on the convex side and parallel on the concave side. Amino acid analysis revealed lower Cys and higher Asp, Glu, and Gly on the convex side. These findings suggest similarities to the structure of ortho- and para-cortical cells in wool fibers, indicating a universal structure in curved mammalian hair.
    Discuss this study in the Community →

    Research cited in this study

    1 / 1 results

    Related Community Posts Join

    6 / 314 results

      community HAIR REGENERATION HUMAN TRIALS with Verteporfin

      in Research/Science  13 upvotes 2 years ago
      A new human trial using an FDA-approved treatment for wound healing called Verteporfin, which may potentially be able to reverse scarring and regrow hair in that area. The trial is only lasting one month so far.

      community Natural Remedies: Polyphenols and Hair Loss

       19 upvotes 5 years ago
      Natural remedies to treat hair loss, such as polyphenols, apple peel extract, grape seed extract, green tea extract, peppermint oil, pumpkin seed oil, apigenin, Ginkgo biloba, red clover extract, olive leaf extract, Ecklonia Cava and Grateloupia elliptica. In addition, terpenes, carotenoids, and tocopherols were discussed as potential treatments.

      community How all hormones affect our hair follicles. Not just DHT. Take a look at this paper. Prolactin, melatonin, cortisol, progesterone, testosterone and more

      in Research/Science  126 upvotes 2 years ago
      The conversation discusses various factors affecting hair loss, not just DHT, and mentions treatments like Minoxidil, finasteride, and melatonin. Some users report personal experiences with these treatments and hormone tests, while others speculate on the role of hormones like prolactin and cortisol in hair loss.

      community Vertoporfin research update by Dr Bloxham

      in Research/Science  71 upvotes 1 year ago
      The conversation discusses the potential of verteporfin in treating hair loss, with some users reporting positive results and speculating that it could lead to a cure for baldness. Others are skeptical, and there's a debate on the effectiveness of verteporfin for regrowing hair and reducing transplant scars.

      community Further prolactin research....

      in Research/Science  6 upvotes 9 months ago
      HMI 115 did not work as expected for hair regrowth in humans, unlike in macaque monkeys. There is anticipation for further research on prolactin's role in hair loss, with expectations that pharmaceutical companies will likely solve this before universities.

    Related Research

    2 / 2 results