March 2018 in “Journal of Experimental Biology” Hair curliness is caused by the arrangement and length of two different cell types.
42 citations
,
February 1996 in “Journal of Investigative Dermatology” Polyamines, especially spermidine, are essential for hair growth.
15 citations
,
January 1988 Hair follicles have unique proteins that vary by species and are influenced by nutrition.
11 citations
,
April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
46 citations
,
November 1998 in “Experimental Cell Research” K15 gene is mainly active in the basal layers of hair follicles and epithelia, aiding early skin cell development.
116 citations
,
April 1986 in “The journal of cell biology/The Journal of cell biology” Trichohyalin is a protein in hair follicles that helps form hair filaments.
65 citations
,
February 1992 in “Development” Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.
61 citations
,
February 1997 in “Differentiation” Hair differentiation starts earlier than thought, involving multiple type-II keratins.
12 citations
,
December 2003 in “Gene” The ovine Hoxc-13 gene is crucial for hair formation and may have other skin functions.
98 citations
,
December 1991 in “Annals of the New York Academy of Sciences” Keratin gene regulation is similar across mammals, affecting hair follicle differentiation.
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.
17 citations
,
January 2015 in “Pharmacognosy Research” A herbal mix, especially with Jatamansi, effectively darkens gray hair.
November 2025 in “Biomolecules” FGF22 helps hair follicle stem cells grow and develop.
30 citations
,
July 2010 in “Experimental Dermatology” Polyamines are important for hair growth, but more research is needed to understand their functions and treatment potential.
1 citations
,
January 2024 in “Animal Research and One Health” Mouse models are essential for studying and improving genetic traits in agriculture.
9 citations
,
January 1989 in “Sen'i Gakkaishi” Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.
December 2025 in “Yemeni Journal of Agriculture & Veterinary Sciences” Many sheep and goats in Sana’a, Yemen, lack essential minerals and need supplements for better health.
90 citations
,
January 1979 in “International review of cytology” Wool follicles are complex, involving interactions between different cell types and structures.
9 citations
,
February 1981 in “Australian journal of biological sciences” Lambs fed a liquid diet showed abnormal wool and skin, which improved with more B-vitamins, suggesting a link to B-vitamin deficiency.
3 citations
,
July 2012 in “Sokoto Journal of Veterinary Sciences” As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.
1 citations
,
November 2025 in “Clinical Cosmetic and Investigational Dermatology” Sleep patterns might be linked to hair loss, but more research is needed.
35 citations
,
February 2006 in “Textile Research Journal” Enzymes xylanase and pectinase clean wool and specialty hair fibers effectively without damage, offering an eco-friendly alternative to soap and hot water.
14 citations
,
April 2000 in “Animal Science/Animal science” Nutrients like vitamins, copper, zinc, and amino acids are crucial for healthy hair and wool growth.
6 citations
,
March 1998 in “Textile Research Journal” Chemical treatments can change the scale heights of wool and cashmere fibers, affecting their identification.
3 citations
,
September 2024 in “Frontiers in Bioscience-Scholar” Pantaneiro sheep have more genetic diversity than Texel sheep, with potential for future research in Brazilian farming.
December 2025 in “Frontiers in Medicine” ARWH is a rare hair disorder with no cure, but potential treatments include minoxidil and other therapies.
September 2024 in “Seven Editora eBooks” Dermatophylosis sporadically affects adult sheep in Sertão da Paraíba, causing alopecic and crusty skin lesions.
August 2020 in “Textile research journal” The model helps understand how wool fiber structure affects its strength and flexibility.
191 citations
,
November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
9 citations
,
November 2015 in “Key Engineering Materials” Improving skills and technology in Baluchistan's wool industry could boost quality, jobs, and Pakistan's economy.