September 2023 in “British Journal of Dermatology” Hair regrowth from severe alopecia areata treatment with baricitinib can vary, with faster results in those with shorter hair loss duration.
December 2021 in “Journal of The American Academy of Dermatology” COVID-19 can cause different types of hair loss, which may last up to 100 days, and treatments are still being explored.
February 2020 in “Journal of chemical neuroanatomy” Researchers found a way to make rat hair follicle cells start turning into motor neuron-like cells, but couldn't fully turn them into working motor neurons.
April 2019 in “Journal of Investigative Dermatology” Increasing COX-2 in mouse skin causes bigger sebaceous glands and thinner hair, but stopping COX-2 can reverse hair thinning.
January 2018 in “Elsevier eBooks” 5α-reductase-2 deficiency causes ambiguous genitalia at birth and affects male sexual development, but individuals often develop male characteristics at puberty.
Different scalp and hair disorders are more common in certain ethnic groups, with the most common being androgenetic alopecia, which is treated with medications like minoxidil and finasteride.
A wavy two-layer closure in hair transplants makes scars nearly invisible for most patients.
April 2017 in “Journal of Investigative Dermatology” Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.
November 2014 in “ACTUALIDAD MEDICA” Ultrasonography can help diagnose and monitor hair loss conditions.
October 2014 in “Springer eBooks” Rabbit hair fibers are similar to wool and have a hollow center like feathers.
The new method can tell how hair fibers react to moisture after treatments.
January 2012 in “Postgraduate obstetrics & gynecology” Up to half of women by age 50 experience significant hair loss, with various types and treatments available.
Hair transplantation can effectively restore hair in stabilized hair loss cases.
January 2008 in “Journal of The American Academy of Dermatology” Trichoscopy is a helpful and quick method to identify different types of hair loss in women.
Hair restoration surgery has improved to transplant hair in natural groupings, but it's labor-intensive and can't fully restore normal hair density.
November 2005 in “Journal of Investigative Dermatology Symposium Proceedings” The 2004 hair research meeting presented new findings on hair cell differentiation, genetic factors in hair loss, hair pigmentation, and potential targeted therapies.
September 1998 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” The document concludes that individualized treatments for hair issues are effective, certain hair changes can indicate neurocutaneous diseases, specific lotions improve skin health, laser hair removal works but needs more study on long-term effects, men's cosmetics are diverse, peeling is effective but can have side effects, and facial pigmentation is often due to overactive skin cells.
February 1990 in “PubMed” Hair follicle cells and skin cells differ in keratinization and other features.
January 2022 in “Stem cell biology and regenerative medicine” Dermal sheath cells can help grow new hair follicles and show promise in treating hair loss.
41 citations
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December 2008 in “Pediatric Dermatology” Trichoscopy can diagnose Netherton syndrome without pulling hairs.
22 citations
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March 2007 in “European journal of pediatrics” Certain types of mucopolysaccharidoses cause significant hair abnormalities.
19 citations
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December 2006 in “Archives of dermatology” Hair casts and cutaneous spicules can be signs of multiple myeloma.
9 citations
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January 2014 in “Journal of analytical & bioanalytical techniques” The study did not conclude whether hair can reliably indicate kidney stones, cholelithiasis, hypertension, or diabetes.
8 citations
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January 2020 Alopecia areata causes patchy hair loss, and certain hair features can suggest its presence.
8 citations
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February 2005 in “British Journal of Haematology” Chemotherapy caused the patient's hair to have alternating thick and thin segments.
6 citations
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August 1993 in “Archives of Dermatology” A woman's hair changed to a dry, tangled texture that's hard to comb after treatment with spironolactone, suggesting the medication might cause such hair changes.
4 citations
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August 2025 in “Scientific Reports” Hair analysis can effectively detect diabetes and aging markers.
3 citations
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January 2021 in “Skin appendage disorders” Trichoscopy is useful for correctly diagnosing tinea capitis in adults with unexplained hair loss.
3 citations
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August 2013 in “Journal of the American Academy of Dermatology” A new method quickly detects hair changes from EGFR inhibitors using a microscope.
1 citations
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January 2009 in “Drug delivery system” Anti-aging treatments like hair transplants, minoxidil, and finasteride effectively promote hair growth.