1540 citations
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October 2008 in “Fertility and Sterility” The report concludes that PCOS is mainly a condition of excess male hormones and its definition may change as new information is discovered.
46 citations
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May 1986 in “Seminars in Reproductive Medicine” Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.
112 citations
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February 2001 in “Journal of Investigative Dermatology” Neuropeptides affect hair growth, with some speeding it up and others slowing it down.
January 2022 in “Skin appendage disorders” A woman with alopecia totalis regrew dark hair in bands after using a corticosteroid ointment.
April 2012 in “Informa Healthcare eBooks” Alopecia areata is a common autoimmune condition causing varying hair loss, diagnosed by specific patterns of inflammation around hair follicles, with several treatment options available.
June 2023 in “Research Square (Research Square)” Different immune responses cause hair loss in scalp diseases, with unique patterns in scalp psoriasis possibly protecting against hair loss.
32 citations
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February 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.
1 citations
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April 2012 in “Informa Healthcare eBooks” Some medications for inflammation can cause a condition with scalp rashes and hair loss, often linked to Crohn's disease, and may require treatment changes to prevent permanent hair loss.
April 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” GRK2 is essential for healthy hair follicle function, and its absence can lead to hair loss and cysts.
May 2009 in “Hair transplant forum international” Androgens affect hair growth and shedding, with genetic and non-genetic factors influencing baldness.
4 citations
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June 2002 in “Veterinary Dermatology” Prenatal retinoic acid exposure increased cell proliferation in mouse hair follicles without affecting their development.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Derinat helps extend hair growth by reducing harmful molecules in skin cells.
73 citations
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June 2001 in “Endocrinology” Prolactin affects when mice shed and grow hair.
14 citations
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June 2001 in “Endocrinology” Prolactin affects when mice shed and grow hair.
71 citations
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January 2012 in “PloS one” The conclusion is that genetic differences affect how the cochlea heals after hair cell loss, which may challenge the creation of hearing loss treatments.
62 citations
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January 2000 in “Developmental dynamics” Notch-related genes play a key role in the development and cycling of hair follicles.
17 citations
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July 1988 in “International Journal of Dermatology” The 2% minoxidil solution is safe and effective for early male pattern baldness.
14 citations
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October 2020 in “Scientific reports” Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.
10 citations
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November 1984 in “Journal of Colloid and Interface Science” The study found that the Marangoni effect causes the uneven wetting of surfactant-coated hair due to the surfactant moving into the water.
3 citations
,
June 1979 in “The Journal of Dermatology” Glycosaminoglycan levels peak early in hair growth and decrease as the cycle progresses.
1 citations
,
January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
August 2025 in “Medical Journal of Armed Police Force Nepal” Alopecia areata is more common in males, mostly affects the scalp, and often appears as patchy hair loss.
133 citations
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August 1969 in “Science” Melatonin causes weasels to grow white fur and become reproductively inactive.
28 citations
,
September 1986 in “Pediatric dermatology” Zinc therapy improved hair health in a girl with acrodermatitis enteropathica.
Allergen reactivity in scalp seborrheic dermatitis should be managed with barrier repair and microbiome-focused strategies.
4 citations
,
May 1981 in “Australian Journal of Biological Sciences” Rat hair follicle cells can produce and release various glycosaminoglycans over time.
Low-level light therapy, possibly combined with other treatments, may become a leading hair loss treatment, while hirsutism often worsens with age and lacks preventive options.
11 citations
,
January 1989 Two patients had a unique form of trichothiodystrophy with reduced high-sulfur proteins in their hair.
January 2026 in “International Journal of Dermatology” APKH in young males may signal early hair loss and needs early attention.
October 1986 in “Inpharma” Spironolactone helps reduce hair growth in women with hirsutism but may cause menstrual irregularities.