36 citations,
November 2019 in “Molecular biology and evolution” Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.
8 citations,
January 2023 in “International journal of molecular sciences” Transglutaminase activity is important for skin and is found in both mammals and birds.
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.
17 citations,
August 2014 in “The Anatomical Record” Scaffoldin helps form hard skin structures in chicken embryos.
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.
68 citations,
April 2014 in “Journal of Investigative Dermatology” Trichohyalin-like proteins are essential for the development of skin structures like hair, nails, and feathers.
5 citations,
January 2022 in “Scientific reports” The research identified two types of keratinocytes in chicken scales: one for hard scales and another for soft skin, with similarities to human skin differentiation.
1 citations,
February 2017 in “International journal of anatomy and research” Understanding fetal skin development helps diagnose congenital skin diseases.
December 2023 in “Rheumatology quarterly” Skin changes are key for early diagnosis and treatment of rheumatic diseases.
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.
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.
November 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin cells and certain hair follicle areas produce hemoglobin, which may help protect against oxidative stress like UV damage.
3 citations,
October 2022 in “PloS one” Scientists have developed a method to keep chicken feather follicles alive and structurally intact in a lab for up to a week.
2 citations,
July 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Autophagy changes the protein makeup of hair.
22 citations,
December 2016 in “PloS one” A specific protein in chicken embryos links early skin layers to feather development.
65 citations,
September 2014 in “BMC genomics” Different hair types in mammals are linked to variations in specific protein genes, with changes influenced by their living environments.
3 citations,
March 2023 in “International journal of molecular sciences” Keratin protein production in cells is controlled by a complex system that changes with cell type, health, and conditions like injury or cancer.
December 2016 in “John Wiley & Sons, Ltd eBooks” The document concludes that proper recognition and treatment of skin appendage disorders are important for management.
5 citations,
December 2020 in “Bioengineering & translational medicine” Researchers used a laser to create advanced skin models with hair-like structures.
November 2023 in “Advanced functional materials” Magnesium Silicate Sprays help heal burn wounds and regrow skin features better than commercial products.
1 citations,
July 2005 in “Drugs and the pharmaceutical sciences” Targeting drugs to hair follicles can treat skin conditions, but reaching deep follicle areas is hard and needs more research.
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.
2 citations,
December 2022 in “Journal of toxicologic pathology” Skin structure complexity and variability are crucial for assessing skin toxicity in safety tests.
January 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” The gene Ascl4 is not necessary for the development of hair, teeth, or mammary glands.
43 citations,
February 2013 in “Developmental dynamics” Foxi3 expression in developing teeth and hair is controlled by the ectodysplasin pathway.
40 citations,
January 2016 in “Elsevier eBooks” The skin is the largest organ, protecting the body, regulating temperature, and producing hormones.
January 1997 in “Elsevier eBooks” Hair and nails are skin parts that develop early and serve protective and functional roles.
4 citations,
June 2023 in “Journal of developmental biology” The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.
1 citations,
March 2023 in “Aggregate” A new hydrogel with micronized amnion helps achieve better, scar-free skin healing.
133 citations,
July 2020 in “Cells” Creating fully functional artificial skin for chronic wounds is still very challenging.