April 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Gap junctions help control feather pattern formation by enabling cell communication.
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.
45 citations
,
October 2015 in “BMC Genomics” Chicken feather growth involves specific genes and shares similarities with hair development.
81 citations
,
April 1941 in “Physiological zoology” Experiments can shape how feathers grow and develop.
14 citations
,
September 2017 in “General and comparative endocrinology” Barn owls with smaller black spots have higher testosterone levels, which might be due to genetic effects on hormone regulation rather than hormone effects on coloration.
1 citations
,
October 2025 in “Scientific Reports” Mandarin duck sail feathers change with seasons due to hormones and genetic regulation.
February 2026 in “International Journal of Biological Macromolecules” Keratin from waste hair and feathers can be sustainably used to create stable emulsions for industrial applications.
January 2026 in “Digitalen Hochschulbibliothek Sachsen-Anhalt (Universitäts- und Landesbibliothek Sachsen-Anhalt)” Keratin from chicken feathers can be safely used for skin benefits.
September 2024 in “Digital Commons - University of South Florida (University of South Florida)” Hormones can change ptarmigan feather color from white to pigmented.
January 2026 in “Biomaterials and Biosystems” Keratin from chicken feathers can be safely used on damaged skin.
17 citations
,
September 2022 in “Genes & Genomics” Long non-coding RNAs affect feather growth in chickens in ways that don't follow traditional genetic rules.
10 citations
,
August 2023 in “Animals” SLC45A2 and GPNMB genes help control chicken feather color by promoting melanin.
4 citations
,
February 2024 in “Poultry Science” miR-140-y helps control feather growth in geese by affecting the Wnt signaling pathway.
3 citations
,
May 2024 in “Poultry Science” Certain genes are crucial for feather development in Wannan chickens.
3 citations
,
January 2024 in “Poultry Science” FOXO3 is essential for proper feather development in goose embryos.
2 citations
,
December 2020 in “Frontiers in genetics” Researchers found genes linked to feather growth speed in Shouguang chickens, highlighting two genes that might explain differences in feathering.
1 citations
,
October 2023 in “Biology” Fasting in hens affects thyroid hormones, which regulate feather and hair growth.
January 2023 in “MIMESIS” The study concluded that McDonald's Father's Day ad uses a burger bun to symbolize a father, with colors and text celebrating the occasion and representing the brand's identity.
October 1890 in “Science” Pilocarpin can cause hair regrowth and color change in some cases but not in others, and it may have side effects in animals.
August 2025 in “Current Issues in Molecular Biology” Key pathways like WNT, EGF, FGF, SHH, and BMP regulate poultry feather growth, with BMP inhibiting it.
April 2019 in “Journal of Investigative Dermatology” Calcium signals and SHH guide the direction of feather growth in chicken skin.
4 citations
,
August 2017 in “JAMA Dermatology” Norman Orentreich pioneered hair transplantation, improving techniques over time for more natural results.
January 2026 in “Health Food & Biotechnology” A hair serum with 3% keratin from chicken feathers made hair smoother, shinier, and more elastic.
September 2021 in “LAUTECH Journal of Civil and Environmental Studies”
March 2023 in “JAAD case reports” A new genetic change in the keratin 10 gene caused a skin condition called ichthyosis hystrix in a father and his daughter.
February 2025 in “Animals” Understanding proteins in skin structures like claws and hair is crucial for future research.
September 2020 in “Hair transplant forum international” O'Tar T. Norwood was a key figure in creating a system to classify male baldness and founding hair restoration societies.
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.
60 citations
,
April 2012 in “Physiology” The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.
57 citations
,
August 1997 in “Microscopy Research and Technique” New molecules involved in skin and hair growth were identified, improving understanding and future treatments.