86 citations
,
April 2009 in “Journal of anatomy” Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.
22 citations
,
July 1998 in “Journal of Investigative Dermatology” The 4C32 gene may help in mouse skin development and differentiation.
August 2019 in “Journal of Investigative Dermatology” The study found that tight junctions reach the top layer of the skin's stratum granulosum, not just the second top layer as previously thought.
38 citations
,
July 2004 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Reptilian scales, feathers, and hairs evolved from changes in skin cell interactions.
January 1995 in “Skin Cancer” The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.
26 citations
,
January 1964 in “Experimental Cell Research” 13 citations
,
September 2012 in “Cell & tissue research/Cell and tissue research” pCLCA2 protein may help maintain skin structure and function.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Deleting the Hoxc13 gene in frogs shows its crucial role in developing skin structures similar to hair.
December 2021 in “Journal of natural fibers” The conclusion is that new methods for isolating hair cuticle cells and removing the cuticle layer are effective and convenient.
36 citations
,
December 2004 in “British Journal of Dermatology” The cyst had unusual keratin spherules and resembled bone marrow.
1 citations
,
October 2023 in “PROTOPLASMA” 21 citations
,
June 2003 in “Journal of Morphology” Monotreme and marsupial skin proteins show primitive features and species-specific differences compared to placental mammals.
1 citations
,
December 2021 in “Kathmandu University medical journal” Adult earlobe can have a benign cyst that is usually removed by surgery.
25 citations
,
October 1962 in “Journal of Ultrastructure Research” The hair follicle structure is more complex than thought, with new findings on protein formation.
15 citations
,
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.
Lysine carboxymethyl cysteinate (LCC) protects skin from UVB damage by activating autophagy.
158 citations
,
January 2009 in “The International Journal of Developmental Biology” Reptile scales help us understand the evolution of skin features like hair and feathers.
15 citations
,
May 2010 in “International Journal of Cosmetic Science” The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.
November 2024 in “Comparative Biochemistry and Physiology Part D Genomics and Proteomics” Exosomes help hair follicle development in cashmere goats.
Hair follicle stem cells are crucial for touch sensation and proper nerve structure in mice.
238 citations
,
October 1994 in “Current opinion in genetics & development” The document concludes that recent research has improved understanding of skin diseases and the balance between cell growth and differentiation in the epidermis.
1 citations
,
July 2023 in “Journal of developmental biology” Bird foot scales develop differently and can repair but not fully regenerate due to the lack of specialized stem cell areas.
9 citations
,
March 2009 in “The journal of investigative dermatology/Journal of investigative dermatology” Ectodysplasin signaling is crucial for skin appendage development, requiring specific doses and durations.
9 citations
,
July 2019 in “Folia Morphologica” Brandt's hedgehog has thick skin on its back and many glands near its nostrils.
Pangolin scales evolved for protection, hardening with age, due to keratin gene diversification.
2 citations
,
January 1989 Researchers developed a method to grow skin-like tissue from hair cells.
28 citations
,
September 2013 in “European Journal of Histochemistry” Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.
35 citations
,
September 1994 in “Journal of Investigative Dermatology” 73 citations
,
January 2016 in “International review of cell and molecular biology” Cornification evolved from keratinization in vertebrates, with differences between mammals and sauropsids.
375 citations
,
June 2013 in “Biochimica et biophysica acta. Molecular cell research” Cornification is how skin cells die to form the protective outer layer of skin, hair, and nails.