Nipple area expansion in mice needs both pregnancy hormones and mechanical strain.
October 2005 in “Nature reviews. Molecular cell biology (Print)” Hairless protein is key for hair growth, cell differences cause gene expression variation, and the N-end rule pathway senses nitric oxide for protein breakdown.
189 citations
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May 1999 in “Microscopy Research and Technique” Neurotrophins, especially NGF, are crucial for pain development and management.
4 citations
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October 2011 in “Pediatric dermatology” Head lice can cause unusual patchy hair loss.
6 citations
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January 2018 in “Dermato-endocrinology” Darkened knuckles can be an early sign of insulin resistance.
2 citations
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January 1960 in “Australian Journal of Biological Sciences” The Naked gene in mice causes abnormal sebaceous glands and disrupts hair follicle organization.
November 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” Nitrate can boost hair growth by activating certain pathways and reducing others.
May 2026 in “Research Square” The polyG fragment in Hoxc13 protein helps evolve mammalian skin and hair by enhancing gene interactions.
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November 1959 in “Annals of the New York Academy of Sciences” Human hair follicles can grow back.
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October 1992 in “PubMed” Sinus hair follicles in mammals have different nerve fiber types with species-specific patterns, especially in cats.
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.
June 2018 in “Dermatologic Surgery” February 2025 in “Proceedings of the National Academy of Sciences” Only Deomyinae rodents can regenerate complex tissues.
2 citations
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January 2017 in “PubMed” Hair casts are harmless but can be mistaken for head lice.
110 citations
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January 1995 in “European Journal of Neuroscience” Glycine is a key transmitter in rat spinal cord synapses, often alongside GABA.
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May 2011 in “Medical Hypotheses” Transnasal cooling could reveal new insights into various physiological conditions and may be a natural way to transfer heat from the brain.
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November 2024 in “Human Genetics and Genomics Advances” Nociplastic pain is a complex, heritable trait with genetic links to chronic and neuropathic pain.
40 citations
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November 1966 in “Archives of Dermatology” Trichorrhexis nodosa is mainly caused by hair trauma and improves with gentler hair care.
6 citations
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June 2010 in “Dermatologica Sinica” Panfolliculoma is a rare, non-cancerous growth related to hair follicles.
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September 2007 in “BMC developmental biology” Neuregulin3 affects cell development in the skin and mammary glands.
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July 2007 in “Journal of comparative neurology” Manatee whiskers are specially adapted for touch in water.
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March 1996 in “Journal of Investigative Dermatology” 264 citations
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October 1958 in “Archives of Dermatology” A 4-year-old girl has a rare hair condition causing fragile, short hair.
March 2025 in “The Open Dermatology Journal” Trichorrhexis nodosa is common hair breakage, often due to styling, and new treatments are being explored.
December 2025 in “Journal of Nanobiotechnology” The new microneedle system promotes hair growth by improving the hair follicle environment.
January 2023 in “Han'gug mi'saengmul saengmyeong gong haghoeji/Han-guk misaengmul saengmyeong gonghak hoeji” NOC-4 extract promotes black hair and hair growth effectively.
A person with a new mutation in the SCN1A gene developed brain inflammation after COVID-19.
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January 1997 in “Mapping” Gambogic Amide may prevent hair greying and promote hair growth by maintaining hair pigmentation.
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November 1966 in “Archives of Dermatology” Trichorrhexis nodosa is mainly caused by hair trauma, not a metabolic defect.
1 citations
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February 2005 in “The Journal of Laryngology & Otology” A fungal infection in the neck caused severe breathing issues, treated successfully with antibiotics and antifungal medication.