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August 2000 in “Pigment cell research” Melanocyte activity in hair follicles is linked to the hair growth cycle, being active in growth phases and inactive in rest phases.
9 citations
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April 1985 in “Canadian Journal of Zoology” Moose have unique interdigital glands with green hairs and larger glands during mating season.
May 2020 in “Research Square (Research Square)” The study identified key genes that align with the cashmere growth cycle in goats, which could help improve cashmere production timing.
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September 1966 in “Journal of Investigative Dermatology” 1 citations
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February 1991 in “Journal of Biological Chemistry” 18 citations
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May 2023 in “Science Advances” Activating the sonic hedgehog pathway in chicken embryos can permanently change scales to feathers.
February 2020 in “Research Square (Research Square)” The research identified key genes that control the growth cycle of cashmere in goats, which could help improve cashmere goat breeding.
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April 2012 in “Journal of mammalogy” Young female Australian fur seals are losing hair due to low tyrosine and zinc levels and high pollution exposure.
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November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
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April 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Climate-related nutritional stress may cause hair loss in juvenile male Guadalupe fur seals.
1 citations
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June 1998 in “Journal of Forestry Research” Mammalian hair scales change from smooth to wavy due to friction.
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October 1999 in “Annals of the New York Academy of Sciences” Melatonin and cortisol affect mink winter hair growth, but β-endorphin levels do not.
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July 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” BLMP-1 is important for regular molting and gene expression cycles in worms.
46 citations
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January 1991 in “Tissue and Cell” The male silkmoth's antenna develops olfactory structures over 21 days, with full hair formation by day 15.
January 2022 in “SSRN Electronic Journal” Mouse hair follicles age, causing more white hairs due to fewer pigment stem cells.
January 1992 in “Proceedings of the New Zealand Society of Animal Production” Ferret hair growth starts between 0 and 4 days after melatonin treatment, with cell growth peaking in the hair germ and declining as the hair matures.
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November 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” Different melanocyte types in hair follicles either survive or die during the catagen phase.
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September 1999 in “The journal of experimental zoology/Journal of experimental zoology” Prolactin levels do not control the start of winter fur growth in mink.
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December 2004 in “PubMed” A fungal infection caused skin lesions in farmed mink kits, but they remained healthy.
January 2005 in “Journal of Zhejiang University(Sciences Edition)” Yuyi hairless mice lose hair after birth, develop thick, loose skin with folds, and show disorganized skin structure as they age.
January 2015 in “Springer eBooks” Hair shedding that lasts more than 6 months may need medical tests, but often just reassurance is enough.
January 2023 in “Springer eBooks” Hair shedding that lasts over 6 months may need a closer look, but often just reassurance is enough.
85 citations
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October 2006 in “Current opinion in cell biology” Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Spiny mice regenerate skin better than laboratory mice due to larger hair bulges, more stem cells, and different collagen ratios.
April 2023 in “Tropical Animal Health and Production” Giving melatonin to sheep before the non-breeding season can improve their chances of reproducing in northwest Mexico.
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October 2010 in “Journal of dermatological treatment” External treatments can change hair growth patterns in nude mice.
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December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
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January 1951 in “Physiological zoology” Hair growth and pigmentation in mice involve specific stages crucial for research.
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August 2007 in “Annals of Anatomy - Anatomischer Anzeiger” Feathers become harder as they develop due to a change in keratin type.