May 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” The study found that certain genes are important for hedgehog skin appendage development and immunity, with spines possibly evolving for protection and infection resistance.
January 2013 in “日本泌尿器科学会雑誌” 
6 citations
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October 1993 in “Endocrinology” Finasteride blocks progesterone production in specific tumor cells, potentially causing side effects.
1 citations
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August 2022 in “Case Reports” A rare ovarian tumor caused high testosterone, hair loss, and missed periods, but surgery fixed these issues and led to pregnancy.
93 citations
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May 1990 in “The EMBO Journal” Mice with extra sheep genes had hair that fell out and regrew in cycles.
39 citations
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September 2007 in “BMC developmental biology” Neuregulin3 affects cell development in the skin and mammary glands.
6 citations
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May 1997 in “Journal of Dermatological Science” Researchers found a gene in hamsters that responds to male hormones and may be indirectly controlled by them.
Canine fetal hair follicle stem cells show pluripotency, with higher S100 protein expression at 40 days.
December 2004 in “Differentiation” 3 citations
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January 2024 in “Poultry Science” FOXO3 is essential for proper feather development in goose embryos.
January 2006 in “Zhonghua miniao waike zazhi” Finasteride can reliably cause hypospadias in rabbits.
13 citations
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February 2009 in “Pest management science” Reactive oxygen species are key for parasitic plant attachment and affect root development in various plants.
12 citations
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September 2002 in “Journal of Neurochemistry” Pregnancy-related hormone changes affect Y1 receptor gene expression in mice.
32 citations
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September 1996 in “Archives of Dermatological Research” 6 citations
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September 1996 in “Archives of Dermatological Research” 
Proper niche formation in Drosophila requires Slit-Robo signaling for cell migration.
1 citations
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February 2017 in “Dermatologic Surgery” The basement membrane matrix helps rebuild hair follicles faster and more effectively.
December 1963 in “Medical Entomology and Zoology” Wnt1a from stem cells boosts hair growth and regeneration in mice.
43 citations
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January 2012 in “Biological Research” The origins of many adult skin stem cells are still mostly unknown.
September 2024 in “Stem Cell Research & Therapy” HA-stimulated stem cell vesicles improved hair growth in male mice with androgenetic alopecia.
19 citations
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July 2011 in “Microscopy and Microanalysis” The hair follicle bulge is an important area for adult stem cells involved in hair growth and repair, with potential for medical use needing more research.
16 citations
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April 2021 in “Frontiers in Cell and Developmental Biology” New hair follicles could be created to treat hair loss.
February 2026 in “BMC Genomics” MEG3-miRNAs help control wool traits in young Tan sheep by regulating immune responses, but their decline with age leads to wool changes.
January 2018 in “VCU Scholars Compass (Virginia Commonwealth University)” Desmosomes are crucial for skin and heart development, and JNK may help regulate them.
2 citations
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April 2021 in “International Journal of Molecular Sciences” The study concluded that changing the culture conditions can cause sika deer skin cells to switch from a flat to a 3D pattern, which is important for creating hair follicles.
January 2025 in “Haematology International Journal” These ovarian conditions cause high testosterone levels.
January 1974 in “Almogaren” A new method shows promise for regenerating hair follicles to treat hair loss.
20 citations
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February 1994 in “In vitro cellular & developmental biology. Animal” Wool follicles can grow in a lab with the right nutrients and conditions.
36 citations
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June 1988 in “Australian Journal of Biological Sciences” Mouse epidermal growth factor injections in sheep affected wool growth and skin, but saline did not.
January 2019 in “Indian Journal of Dermatology, Venereology and Leprology”