January 2010 in “Nihon Hou Kagaku Gijutsu Gakkaishi” The modified staining method can determine the ABO blood group of hair samples accurately.
60 citations
,
December 2003 in “Journal of Investigative Dermatology” K6hf is found in specific parts of hair follicles, nails, and tongue, and is linked to hair growth and structure.
22 citations
,
September 1998 in “PubMed” Panax ginseng helps prevent hair follicle cell death and speeds up hair cell recovery after radiation in mice.
9 citations
,
September 2016 in “Forensic science international” Hair area varies with age and sex, but hair index and medullary index do not.
7 citations
,
April 2018 in “Cosmetics” Lipids in Japanese hair help maintain glossiness and structure.
7 citations
,
December 2011 in “Annals of anatomy” Involucrin helps strengthen the inner parts of human hair.
4 citations
,
September 2019 in “Journal of Biomedical Optics” Medulla loss in scalp hair could help detect breast cancer.
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.
1 citations
,
April 2019 in “PubMed” The medulla in Asian scalp hair has a tubular structure that allows ions and large molecules to flow through it.
1 citations
,
September 2018 in “International journal of research - granthaalayah” Human hair medulla doesn't break down hydrogen peroxide, which may affect hair color formation.
April 2020 in “The FASEB Journal” Testosterone increases heart and blood pressure issues in rats with endotoxemia, and stopping testosterone production can reduce these problems.
March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Beard hair medulla cells have a unique and varied keratin pattern.
September 2025 in “International Journal of Ayurvedic Medicine” Hair medulla patterns vary by Prakruti type, affecting hair strength.
21 citations
,
November 2010 in “Journal of molecular medicine” FoxN1 gene is essential for proper thymus structure and preventing hair loss.
17 citations
,
April 2007 in “Kidney international” Vitamin D boosts a specific gene activity in kidney cells that could improve heart and kidney function.
3 citations
,
March 2009 in “Hirosaki University Repository for Academic Resources (Hirosaki University)” Hirosaki hairless rats have sparse, twisted hair due to missing hair keratin genes.
87 citations
,
July 2009 in “The journal of investigative dermatology/Journal of investigative dermatology” Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.
96 citations
,
January 1940 in “Journal of Endocrinology” Complete adrenal removal causes more hair loss in rats than partial removal.
6 citations
,
February 2013 in “British Journal of Dermatology” Androgens significantly regulate hair keratin K37 expression.
3 citations
,
July 2019 in “Fibers And Polymers/Fibers and polymers”
1 citations
,
July 2014 in “International Journal of Dermatology” A cancer patient developed a type of hair loss after starting a cancer drug called vandetanib.
August 2025 in “Seminars in Nephrology” Regenerative repair is essential to prevent long-term kidney function issues after obstruction.
May 2010 in “Journal of Investigative Dermatology” 49 citations
,
January 1972 in “Biochimica et Biophysica Acta (BBA) - Protein Structure” April 2010 in “The journal of immunology/The Journal of immunology” FoxN1 gene is crucial for proper thymus structure and normal skin appearance.
January 2008 in “Medical Entomology and Zoology”
2 citations
,
October 2022 in “Journal of structural biology” Older thin hair is not just thinner but also has different shape, structure, and stiffness.
248 citations
,
April 1988 in “Differentiation” Human and bovine hair follicles have distinct cytokeratins specific to hair-forming cells.
116 citations
,
August 2010 in “Nature” Scientists turned rat thymus cells into stem cells that can help repair skin and hair.
109 citations
,
June 2000 in “Development” Notch pathway activation causes abnormal hair layer development.