26 citations
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January 1994 in “Hormone and Metabolic Research” Taking spironolactone and linestrenol for androgen excess can lead to lower bone density in young women.
July 2024 in “Journal of Investigative Dermatology” Substance P helps restore skin thickness and cell renewal when sensory nerves are reduced.
90 citations
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January 2003 in “The Journal of Urology” Finasteride may reduce prostate bleeding by lowering blood vessel growth factor levels and blood vessel density in certain prostate areas.
20 citations
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October 2008 in “European journal of endocrinology” Lower lipin 1β in belly fat is linked to insulin resistance in people with polycystic ovary syndrome.
August 2021 in “Asian Journal of Pharmaceutical and Clinical Research” Plant extracts in shampoo improved hair thickness and density in men with hair loss.
3 citations
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July 1987 in “Dermatologic Clinics” Scalp reduction can treat severe hair loss, but success depends on scalp flexibility and it may cause complications like pain, infection, and cosmetic issues.
25 citations
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December 2021 in “Journal of Medical Virology” COVID-19 can cause a type of hair loss that usually starts 74 days after infection, affecting mostly women, but most patients eventually recover.
16 citations
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February 2010 in “Journal of the European Academy of Dermatology and Venereology” Fibrosing alopecia in a pattern distribution is a unique hair loss condition that may respond to antiandrogen therapy.
3 citations
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January 2016 in “Dermatology online journal” Some people with lichen planus pigmentosus might later develop frontal fibrosing alopecia.
January 2024 in “Pan African Medical Journal” Non-scarring hair loss is common in lupus patients and can be diagnosed with specific hair and tissue tests.
December 2021 in “Journal of pharmaceutical research international” Trichoscopic features can help dermatologists distinguish between female pattern hair loss and chronic telogen effluvium.
December 2022 in “JEADV Clinical Practice” Hair density and thickness decrease in specific scalp areas in people with androgenetic alopecia.
31 citations
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February 2020 in “BioMed Research International” Thai people's hair density decreases with age and varies by scalp area, but hair thickness stays the same regardless of age or scalp area.
27 citations
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February 2017 in “Clinical, Cosmetic and Investigational Dermatology” New compounds were found to help increase hair growth and decrease hair loss.
71 citations
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August 2019 in “The journal of sexual medicine” Testosterone treatment effectively causes male physical development in transgender male adolescents but may lead to side effects like acne, higher BMI and blood pressure, lower good cholesterol, and decreased bone density.
1 citations
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September 2023 in “Journal of cosmetic dermatology” Silybum marianum flower extract may help increase hair growth and decrease hair loss.
15 citations
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March 2000 in “The journal of investigative dermatology/Journal of investigative dermatology” As skin cells mature, vitamin D receptor levels decrease while retinoid X receptor α levels increase.
16 citations
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November 2013 in “European Journal of Dermatology” Hair gets thinner and grayer with age, and density decreases more in men on top and in women on top and back.
December 2024 in “Skin Appendage Disorders” Traction alopecia reduces hair density and thickness; proper hair care can help prevent it.
3 citations
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June 2024 in “Skin Research and Technology” Higher LDL lipids may increase alopecia areata risk, while higher triglycerides may decrease it.
30 citations
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December 2017 in “Clinical, Cosmetic and Investigational Dermatology” Parietal scalp area has lower hair density and smaller hair diameter in women with hair loss.
1 citations
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December 2022 in “Clinical, Cosmetic and Investigational Dermatology” Midscalp hair density and terminal hair percentage are good indicators of female pattern hair loss severity.
September 2022 in “International Journal of Trichology” Trichoscopic measurements help determine the severity of female pattern hair loss.
25 citations
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July 2017 in “Journal of Stomatology, Oral and Maxillofacial Surgery” PRP injections help regrow hair, reduce hair loss, and increase hair thickness, but effects decrease without ongoing treatment.
142 citations
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September 2020 in “Journal of neurophysiology” Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.
23 citations
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May 2020 in “Cell Death and Disease” Blocking the FGF5 gene in sheep leads to more fine wool and active hair follicles due to changes in certain cell signaling pathways.
16 citations
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January 2002 in “Dermatology” Early baldness is noticed due to both reduced hair density and thinner hair shafts.
3 citations
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July 2016 in “International Journal of Dermatology” Minoxidil treatment increased hair density in a young Asian girl with short anagen syndrome, but didn't improve hair length or thickness.
August 2016 in “International journal of scientific research” Using minoxidil with finasteride in a cream helps maintain hair thickness after stopping oral finasteride.
61 citations
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April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.