July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Blocking mTORC1 activity with rapamycin could help increase hair pigmentation and growth, potentially reversing gray hair.
October 2025 in “Journal of Investigative Dermatology” Hair follicle dermal stem cells help control hair growth timing by regulating signals at the hair germ–dermal papilla interface.
45 citations
,
August 1992 in “PubMed” The rat vibrissa follicle can quickly remodel its basement membrane during hair growth, affecting cell signaling and activity.
17 citations
,
November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
28 citations
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April 1988 in “Archives of Dermatological Research”
March 2026 in “Portuguese Journal of Dermatology and Venereology” Avoid hair dye after microneedling to prevent scalp pigmentation.
4 citations
,
July 1979 in “Journal of the American Academy of Dermatology” The hair and oil glands react by changing structure when stressed.
26 citations
,
December 2003 in “Experimental Dermatology” Specific keratin gene mutations can cause monilethrix.
January 2016 in “Frontiers in Bioengineering and Biotechnology” Honey applied to wounds speeds up healing and improves tissue repair.
1 citations
,
July 2025 in “Genetics Selection Evolution” Nerve cells and other cell types work together to start horn growth in dairy goats.
11 citations
,
January 2015 in “Journal of cellular physiology” HR protein causes abnormal hair cycles by increasing Tgf-β2 and reducing miR-31.
20 citations
,
December 2013 in “PubMed” Quercetin boosts melanin production in mouse hair follicles.
February 2026 in “Biophysical Journal” Dark hair with a red beard likely evolved for camouflage, not attraction.
48 citations
,
March 2022 in “Nano Letters” The document explains how to make antibacterial microneedles inspired by lamprey teeth to help heal infected wounds.
36 citations
,
January 2007 in “Archives of Histology and Cytology” Type IV collagen chains vary in different parts of human skin, with specific patterns linked to melanocytes.
83 citations
,
May 2011 in “Experimental Dermatology” Sheep have 17 keratin genes, similar to humans, but with different expression patterns affecting wool and hair.
12 citations
,
December 2003 in “Gene” The ovine Hoxc-13 gene is crucial for hair formation and may have other skin functions.
November 2025 in “Frontiers in Veterinary Science” A 1.0% tyrosine diet increases melanin in chicken feathers.
4 citations
,
January 1981 in “PubMed” Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.
27 citations
,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
18 citations
,
October 2016 in “European Journal of Pharmaceutics and Biopharmaceutics” The drug was successfully released into hair follicles using nanocarriers.
7 citations
,
November 2011 in “Skin Research and Technology” The study found a specific pattern of uneven melanin distribution on balding scalps that could help understand skin diseases caused by light exposure.
40 citations
,
November 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” Different melanocyte types in hair follicles either survive or die during the catagen phase.
33 citations
,
October 2012 in “Journal of Morphology” Reptile skin hardens by layering beta-proteins on keratin.
4 citations
,
January 2018 in “International Journal of Trichology” A rare genetic disease causes sparse hair and early blindness due to a gene mutation.
April 2023 in “Journal of Investigative Dermatology” Hair growth is driven by cells that move and change like a conveyor belt.
2 citations
,
January 2024 in “Proceedings of the National Academy of Sciences of the United States of America” The research created a detailed map of skin cells, showing that certain cells in basal cell carcinoma may come from hair follicles and could help the cancer grow.
44 citations
,
March 1991 in “International Journal of Dermatology” Prompt treatment of inflammatory tinea capitis (kerion) is crucial to prevent scarring and hair loss.
39 citations
,
August 2016 in “Journal of Dermatological Treatment” Stem cell therapy may help treat tough hair loss cases.