31 citations
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December 2010 in “Journal of the American Academy of Dermatology” Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.
7 citations
,
December 2011 in “Annals of anatomy” Involucrin helps strengthen the inner parts of human hair.
6 citations
,
June 1976 in “Journal of ultrastructure research” Keratinized wool cells still have some organelles like lysosomes and mitochondria.
30 citations
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November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.
September 1989 in “PubMed” The method allows detailed observation of hair tissue structures.
30 citations
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January 1994 in “Micron” Mature hair surfaces are formed by keratinized cells with developed layers, not just modified plasma membranes.
59 citations
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August 1981 in “PubMed” Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.
January 2015 in “Chinese Veterinary Science” Recognizing ultrastructures of cashmere goat hair follicles helps identify and locate follicle layers.
January 1995 in “Skin Cancer” The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.
The inner root sheath in hair follicles plays a key role in hair growth and health.
15 citations
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July 2004 in “Journal of morphology” Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
20 citations
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September 2004 in “Journal of Anatomy” The inner root sheath evolved to help hair grow safely through the skin in mammals.
12 citations
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January 2013 in “Acta Histochemica” Junctional proteins stabilize the inner root sheath and connect the companion layer in human hair.
86 citations
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May 2002 in “Journal of Investigative Dermatology” A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.
22 citations
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September 2000 in “Journal of Investigative Dermatology” μ-Crystallin may help hair growth by affecting thyroid hormone levels in mouse hair follicles.
130 citations
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April 2003 in “Journal of Investigative Dermatology” Four specific keratins in hair follicles help understand hair structure and function.
45 citations
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March 2001 in “Journal of Investigative Dermatology” A new protein, mK6irs, is found in specific hair layers and may help understand hair growth and diseases.
IRS-specific genes in Tan sheep hair follicles peak at birth and may affect wool crimp.
1 citations
,
January 1989 Four antibodies were developed to help study hair follicle cell differentiation.
1 citations
,
February 2009 in “Journal of Investigative Dermatology” Lipase H is important for hair follicle function and shaping hair fibers.
3 citations
,
July 2011 in “Folia Histochemica et Cytobiologica” Calcium reduces involucrin in rat hair bulbs but doesn't affect filaggrin and Kdap.
11 citations
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September 2012 in “The journal of investigative dermatology/Journal of investigative dermatology” A mutation in the KRT71 gene causes a hair disorder by disrupting hair follicle structure and texture.
5 citations
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March 2001 in “Journal of biomechanics” Growing hairs are easier to pull out than resting hairs due to different anchorage strengths.
January 2019 in “Journal of Entomology and Zoology Studies” Ruminant goats have larger and more defined hair follicles than younger goats.
139 citations
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December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” K6hf is a unique protein found only in a specific layer of hair follicles.
40 citations
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January 2010 in “International Journal of Trichology” Loose Anagen Syndrome is a hair condition where hairs can be easily pulled out, mainly affecting young girls, and may improve on its own or with treatment.
356 citations
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December 1986 in “The journal of cell biology/The Journal of cell biology” Hair and nail cells share similar proteins, indicating a common differentiation pathway.
146 citations
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May 2002 in “The American journal of pathology” Cathepsin L is essential for normal hair growth and development.
67 citations
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December 2008 in “Developmental Biology” Msx2 and Foxn1 are both crucial for hair growth and health.
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.