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April 2002 in “Medical Hypotheses” Hormones cause hair loss by affecting cell growth and weakening cell attraction.
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April 1994 in “Clinical endocrinology” Androgens can cause hair growth in some areas and hair loss on the scalp.
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July 2001 in “Trends in Molecular Medicine” Future hair loss treatments should aim to extend hair growth, reactivate resting follicles, reverse shrinkage, and possibly create new follicles, with gene therapy showing promise.
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April 2011 in “Journal of Ethnopharmacology” Polygonum multiflorum extract helps grow hair by activating certain hair growth signals in mice.
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January 2017 in “Annals of Dermatology” Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.
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June 2016 in “Pediatric Dermatology” Some congenital hair disorders improve with age and can be managed with treatments like minoxidil, retinoids, supplements, and gentle hair care, but there's no cure.
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December 2010 in “Journal of the American Academy of Dermatology” Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.
November 2023 in “Journal of Investigative Dermatology” January 2022 in “SSRN Electronic Journal” Mouse hair follicles age, causing more white hairs due to fewer pigment stem cells.
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January 2013 in “International Journal of Trichology” Short Anagen Syndrome causes persistently short hair and increased shedding, usually improving after puberty.
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January 2014 in “Postępy Dermatologii i Alergologii” Patchy alopecia areata can affect only pigmented hairs, leaving gray hairs untouched.
December 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Abnormal contraction of connective tissue in hair follicles causes hair loss by killing off important cells, and treating this could improve hair growth.
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May 2002 in “British Journal of Dermatology” Hair loss caused by longer latent hair cycle and sudden miniaturization, not gradual follicle size reduction.
September 1980 in “PubMed” Using selenium disulfide on guinea pigs increased hair loss.
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June 1980 in “International Journal of Dermatology” Scalp biopsies are important for diagnosing hair loss conditions.
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May 2017 in “Pediatric Dermatology” The study found that Short Anagen Syndrome results in short hair growth not due to hair fragility, and hair may grow longer after puberty.
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November 2024 in “EMBO Reports” Deleting Gpr54 speeds up hair growth and regeneration.
September 2024 in “Journal of the American Academy of Dermatology” The new hair treatment significantly reduces hair shedding safely.
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May 2010 in “Journal of The American Academy of Dermatology” A 38-year-old African American woman has a rare condition that prevents her from growing long hair.
November 2021 in “CRC Press eBooks” Hair shaft disorders cause fragile, brittle, and abnormal-looking hair.
January 2010 in “Journal of Yangzhou University” Sulfated fucans promote hair growth in mice by speeding up the growth phase and delaying the rest phase.
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April 2007 in “Experimental Dermatology” Stress in mice delays hair growth and treatments blocking substance P can partly reverse this effect.