19 citations
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December 2001 in “Dermatologic Therapy” Horizontal scalp biopsy sections are better for diagnosing alopecia areata, showing fewer hair follicles and more miniaturized hairs.
18 citations
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June 2017 in “Proceedings of the National Academy of Sciences of the United States of America” A gene called Gk5 controls lipid production in the skin and affects hair growth.
1 citations
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August 2013 in “Springer eBooks” Birth control pills and anti-androgen medications help manage hair growth, acne, and hair loss in women with PCOS.
47 citations
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May 2012 in “Wiley Interdisciplinary Reviews-Developmental Biology” The conclusion is that understanding how feathers and hairs pattern can help in developing hair regeneration treatments.
January 2014 in “HAL (Le Centre pour la Communication Scientifique Directe)” Sex hormones affect dog skin conditions, but more data is needed.
February 2026 in “International Journal of Surgery Case Reports” Bezoars can cause serious digestive issues and need early imaging and surgery for effective treatment.
69 citations
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February 2008 in “The American journal of pathology” Controlled delivery of specific RNA and IL-4 restored hair growth in mice with autoimmune alopecia.
24 citations
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August 2021 in “Scientific Reports” Non-thermal plasma could help hair growth by activating key cell signals.
8 citations
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July 2024 in “Cells” PGC-1α may improve aging skin by boosting mitochondrial function and reducing inflammation.
February 2026 in “International Journal of Molecular Sciences” Extracellular vesicles show promise for medical use but face challenges in standardization and safety.
December 2025 in “The Journal of Cell Biology” Keratin 15 helps maintain skin cell growth and repair.
FGF9 helps hair follicles grow in small-tailed Han sheep by affecting cell growth and certain signaling pathways.
The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.
19 citations
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November 2001 in “Journal of Investigative Dermatology Symposium Proceedings” Human hair follicles can regenerate and recover after severe injury by going through a brief abnormal resting phase before growing again.
28 citations
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January 2007 in “Dermatology” Chemotherapy can cause rapid, extensive hair loss, with patterns varying between individuals.
2 citations
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March 2018 in “The Journal of Dermatology” The "color-transition sign" helps tell apart alopecia areata incognita from telogen effluvium by looking at hair color changes.
1 citations
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April 2018 in “Journal of Investigative Dermatology” Lower proximal cup cells, not bulge stem cells, regenerate hair follicles after chemotherapy.
32 citations
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August 2015 in “Anais Brasileiros de Dermatologia” Black women's unique hair characteristics and styling practices can lead to specific scalp conditions, which require early diagnosis and appropriate treatment.
3 citations
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March 2014 in “Veterinary dermatology” Norwegian puffin dogs have a unique type of hair loss that often doesn't get better on its own and responds well to ciclosporin treatment.
2 citations
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February 2015 in “Journal of Tissue Engineering and Regenerative Medicine” Transplanting a mix of specific skin cells can significantly improve the repair of damaged hair follicles.
1 citations
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August 1994 in “Journal of Cutaneous Pathology” Hair loss happens due to faster cell growth and fewer cells in affected follicles.
3 citations
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April 2016 in “Food Science and Biotechnology” Oriental melon leaf extract may help hair grow and keep it in the growing phase longer.
61 citations
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February 1997 in “Differentiation” Hair differentiation starts earlier than thought, involving multiple type-II keratins.
3 citations
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January 2023 in “JEADV Clinical Practice” IL-17 is more important than IFN-γ in causing severe hair loss in chronic alopecia areata.
April 2019 in “Progress in Crystal Growth and Characterization of Materials” Hair grows like a crystal at a solid-liquid interface without cell division.
5 citations
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March 2025 in “Pediatric Dermatology” Alopecia areata in children is caused by the immune system attacking hair follicles due to genetic factors.
July 2021 in “Australasian Journal of Dermatology” The trichoscopy-assisted hair pull test is useful for diagnosing different types of hair loss.
47 citations
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July 2005 in “British Journal of Dermatology” Topical vitamin D3 does not prevent hair loss from chemotherapy.
January 2005 in “Boletín del Instituto de Estudios Giennenses” The test product significantly improved hair growth and reduced hair fall without causing skin issues.
22 citations
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September 1982 in “Journal of ultrastructure research” Wool follicle cells are more complex than previously thought.