34 citations
,
August 1966 in “Experimental cell research” Keratin fibrils in hair form and stop growing at specific points in the follicle.
7 citations
,
August 2009 in “Applied Mathematics and Mechanics-English Edition” Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.
111 citations
,
April 2000 in “British journal of dermatology/British journal of dermatology, Supplement” Thyroid hormone receptor β1 is found in human hair follicles and helps them survive.
31 citations
,
September 1996 in “Differentiation” The upper dermal sheath can regenerate hair in rats.
6 citations
,
April 1996 in “Journal of histochemistry and cytochemistry/The journal of histochemistry and cytochemistry” TGF-alpha is present in sheep and ferret skin and may affect hair growth without directly stimulating cell proliferation.
86 citations
,
October 2013 in “Dermatologic Clinics” Trichoscopy is a useful non-invasive method for diagnosing different hair loss conditions.
1 citations
,
January 2012 in “International journal of trichology” Sheep hair follicle cells can grow a lot but need the dermal papilla to do so.
Different thymic peptides affect hair growth in various ways.
10 citations
,
January 1925 in “Archives of Dermatology” Trichostasis spinulosa is a rare skin condition with hair-filled plugs in hair follicles.
28 citations
,
October 2010 in “Targeted Oncology” Trastuzumab may cause tufted hair folliculitis as a side effect.
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.
23 citations
,
December 1977 in “Virchows Archiv B Cell Pathology” 1 citations
,
March 1991 in “PubMed” Naevoid bundle hair is an unusual hair growth pattern where multiple hairs fuse together.
February 2019 in “PubMed” The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
17 citations
,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
10 citations
,
December 2021 in “Frontiers in cell and developmental biology” The research identified genes that explain why some sheep have curly wool and others have straight wool.
5 citations
,
July 1999 in “Journal of Anatomy” Methylene blue staining effectively highlights detailed nerve structures in rat fur.
10 citations
,
January 1971 in “The American midland naturalist” A simple method can show hair's surface pattern.
9 citations
,
June 2008 in “Springer eBooks” Understanding hair follicle structure is key for treating hair disorders and could help develop new treatments.
19 citations
,
May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
Tan sheep's unique fur traits are determined during the embryonic stage by specific genes.
2 citations
,
May 2012 in “Acta pharmaceutica sinica B” The study found unique microscopic features for hair or feather in five animal ingredients in Shenrongbian pill.
3 citations
,
March 2020 in “International Journal of Molecular Sciences” Thymosin β4 helps increase hair growth in Cashmere goats.
6 citations
,
February 2016 in “American Journal of Dermatopathology” The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.
48 citations
,
July 1993 in “Archives of Dermatological Research” Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.
June 2025 in “SAS Journal of Medicine” Early diagnosis of tufted hair is crucial for managing folliculitis decalvans, a chronic scalp condition.
2 citations
,
February 2022 in “Genomics” Researchers discovered new cell types in goat hair follicles that could help understand hair regrowth and human hair loss.
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.
28 citations
,
November 2018 in “Journal of structural biology” Different populations have distinct hair structures related to their ancestry.
1 citations
,
January 2012 in “Jounal of The Korean Society of cosmetology” Tremella fuciformis Berk helps protect hair from stress-related damage.