248 citations
,
April 1988 in “Differentiation” Human and bovine hair follicles have distinct cytokeratins specific to hair-forming cells.
1 citations
,
January 2007 in “中国科学通报:英文版” Women's hair has more sulfur, and black hair has more calcium than white hair.
April 2024 in “American Journal of Biological Anthropology” Hair traits vary widely and are not reliable indicators of ancestry.
18 citations
,
November 2010 in “Journal of morphology” Antler velvet hair and body hair of red deer have different structures that help with protection and insulation.
November 2024 in “Journal of Microscopy” Human hair varies in structure based on curl type, with high curl hair showing the most differences.
January 2014 in “Pathology” The document concludes that understanding nail anatomy is key for diagnosing nail diseases, early signs of nail melanoma may allow for less aggressive treatment, and specific genetic mutations are important in thyroid cancer prognosis and treatment.
September 2025 in “International Journal of Ayurvedic Medicine” Hair medulla patterns vary by Prakruti type, affecting hair strength.
56 citations
,
August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Different women's hair and skin glands respond to hormones in varied ways, which can cause unwanted hair growth even with normal hormone levels, and more research is needed to treat this effectively.
March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Beard hair medulla cells have a unique and varied keratin pattern.
July 1993 in “Journal of Radioanalytical and Nuclear Chemistry” Mouse hair element patterns vary, making it unreliable for tracking time.
6 citations
,
November 1984 in “Acta Dermato Venereologica” Hair follicles and sweat glands show different keratin staining patterns.
65 citations
,
February 1992 in “Development” Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.
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.
39 citations
,
February 1990 in “The journal of cell biology/The Journal of cell biology” Trichohyalin, a hair follicle protein, has a part with repeating patterns of 23 amino acids.
93 citations
,
July 2006 in “Journal of Investigative Dermatology” K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.
1 citations
,
June 2012 in “Revista de la Escuela de Medicina Legal” Microscopes are essential for telling apart human and animal hair in criminal investigations.
70 citations
,
February 2007 in “Journal of Investigative Dermatology” K39 and K40 are the last keratins expressed in hair development, completing the hair keratin catalog.
October 2024 in “Skin Research and Technology” Pili annulati causes zebra-striped hair but doesn't affect hair strength or quality of life.
17 citations
,
June 2014 in “Journal of Ultrasound in Medicine” Abnormal cuticle and hair shaft medulla cause hair loss in androgenetic alopecia; sonography helps diagnose and manage it.
March 2026 in “International Journal of Advanced Biochemistry Research” German shepherd hair varies in color and pattern but is flat with a consistent internal structure.
December 2025 in “International Journal of Advanced Biochemistry Research” Malvi cattle hair varies in color and pattern across different body regions.
April 2025 in “INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT” Hair histology helps identify animal species in forensic investigations.
50 citations
,
March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
22 citations
,
September 2001 in “Journal of Investigative Dermatology” S100A8 and S100A9 proteins help form hair shafts during growth.
7 citations
,
December 2011 in “Annals of anatomy” Involucrin helps strengthen the inner parts of human hair.
7 citations
,
November 1987 in “Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy” Minoxidil can help thicken hair in some people with male pattern baldness, especially if used early and continuously.
59 citations
,
August 1998 in “International Journal of Dermatology” Genetics and hormones cause hair loss; finasteride treats it safely.
14 citations
,
January 2014 in “International Journal of Dermatology” Minoxidil with Korean red ginseng improves hair density and thickness more than minoxidil alone.
7 citations
,
April 2018 in “Cosmetics” Lipids in Japanese hair help maintain glossiness and structure.
December 2025 in “International Journal For Multidisciplinary Research” Muridae species have unique hair patterns specific to each genus and species.