May 1988 in “Journal of Forensic Sciences” A new method accurately determines hair blood type and can be used on dust samples.
January 1963 in “Stain technology” Ziehl-Neelsen's stain helps identify different parts of hair in sheep and goats.
November 2024 in “Journal of Microscopy” Human hair varies in structure based on curl type, with high curl hair showing the most differences.
April 2012 in “Development” Rac1 is crucial for normal hair structure and pigmentation.
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.
68 citations
,
May 1991 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Both cyproterone acetate and spironolactone effectively reduce hair growth in women with hirsutism.
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.
1 citations
,
July 2024 in “International Journal of Cosmetic Science” Infrared techniques reveal glycogen, unsaturated lipids, and calcium compounds in hair.
October 2024 in “Skin Research and Technology” Pili annulati causes zebra-striped hair but doesn't affect hair strength or quality of life.
Wavy sinus hairs in cats are linked to feline leukemia virus infection.
January 1953 in “Nihon Chikusan Gakkaiho” Soaking calf skin in lime solution dissolves cells at different rates, with optimal dehairing after 4-7 days.
20 citations
,
July 2005 in “Experimental dermatology” The fuzzy gene is crucial for controlling hair growth cycles.
1 citations
,
April 2013 in “The FASEB Journal” 3α‐OH‐DHP is essential for reducing nerve activity related to blood pressure control during pregnancy.
21 citations
,
September 1968 in “Cancer” Citrulline in certain skin tumors suggests they mimic hair growth, helping distinguish them from other cancer types.
5 citations
,
September 2006 in “Natural medicines/Journal of natural medicines” Microscopic hair features can identify different Cauda Cervi species.
4 citations
,
July 2024 in “BMC Zoology” Dromedary camel hair structure and mineral content change with age.
January 2017 in “Clinical approaches and procedures in cosmetic dermatology” Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.
845 citations
,
February 2001 in “The Journal of Clinical Endocrinology & Metabolism” The enzyme for activating vitamin D is found in many body tissues, not just the kidneys.
50 citations
,
March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
29 citations
,
July 2015 in “Journal of Medical Genetics” A genetic variant in the KRT25 gene causes tightly curled hair.
6 citations
,
January 2005 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” The 16th-century mummy's hair was well-preserved due to a calcium surface coat.
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.
August 2024 in “Biophysics Reviews” Mammal hairs have different internal structures.
128 citations
,
February 1992 in “British Journal of Dermatology” Basal cell carcinomas likely originate from hair follicle cells or stem cells.
41 citations
,
July 1994 in “Journal of Dermatological Science” Hair follicle cells need complex interactions to fully differentiate.
8 citations
,
April 2009 in “International journal of oncology” Hair follicle cells resist turning into skin cells.
87 citations
,
November 2002 in “Journal of Investigative Dermatology” 561 citations
,
April 2003 in “Journal of Investigative Dermatology” CD34 is a marker for isolating stem-like cells in mouse hair follicles.