July 1993 in “Journal of Radioanalytical and Nuclear Chemistry” Mouse hair element patterns vary, making it unreliable for tracking time.
Trichohyalin, a protein from pig tongue, was purified and found to have a filamentous structure.
January 2026 in “Forum Dermatologicum” Hair loss can be caused by cancer, treatments, or skin conditions, and trichoscopy helps diagnose it.
September 1997 in “BioMed Research International” Female pattern hair loss often starts in teenage years, reduces hair density, and can impact quality of life.
17 citations
,
June 2002 in “Dermatologic Surgery” Chinese patients have fewer hair follicles than Caucasians, and transplanting hair at 40% of normal density works for natural-looking hairlines.
2 citations
,
July 1994 in “Journal of Dermatological Science” Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.
1 citations
,
July 2021 in “Anais Brasileiros de Dermatologia” The conclusion is that three signs can help diagnose hair loss after it happens, potentially avoiding more invasive tests.
9 citations
,
January 2017 in “Annals of Dermatology” The study found genetic differences related to hair development that may explain hair loss in a patient with Trichorhinophalangeal syndrome type I.
2 citations
,
June 2025 in “Drug Testing and Analysis” The method effectively detects MeT and TP in dried blood spots after cream application.
15 citations
,
July 2012 in “Biological trace element research” Higher hair calcium to magnesium ratios and lower chromium levels in hair may indicate insulin resistance in Korean men.
January 2026 in “Clinical Chemistry and Laboratory Medicine (CCLM)” The procedure accurately measures 5-alpha-dihydrotestosterone in blood, useful for standard tests.
161 citations
,
July 2003 in “ACM Transactions on Graphics” Researchers developed a new model for more realistic computer graphics rendering of hair by considering how light scatters on hair fibers.
2 citations
,
March 2004 in “Journal of the American Academy of Dermatology” The 60-second timed hair count is a reliable and simple way to measure hair shedding at home, showing older women tend to shed more hair than younger women.
115 citations
,
September 2005 in “International Journal of Dermatology” Different ethnic groups have unique hair growth patterns, with African hair growing slower and less dense, Asian hair growing fast but sparse, and Caucasian hair being densest; men are more likely to experience hair loss than women.
May 2005 in “Hair transplant forum international” Trichotemnomania causes hair loss due to compulsive hair cutting or shaving.
2 citations
,
May 2018 in “Journal of The American Academy of Dermatology” Hypothyroidism patients with hair loss typically have thinning hair, smaller hair follicles, and normal hair shedding.
34 citations
,
October 2012 in “Journal of Dermatology” Growth factors and microneedle therapy increase hair density in women with hair loss.
4 citations
,
August 2017 in “Journal of Cosmetic Dermatology” Finger length ratio may indicate male hair loss.
55 citations
,
February 2014 in “Journal of Structural Biology” Human hair has a complex, variable structure with a consistent matrix and double-twist pattern.
16 citations
,
March 2013 in “The Journal of Dermatology” Low TRPS1 expression in skin and hair cells is linked to hair problems in Trichorhinophalangeal syndrome.
December 2019 in “Periodicals of Engineering and Natural Sciences (PEN)” Hair analysis can provide insights into a person's medical history and location over time.
57 citations
,
August 2003 in “British Journal of Dermatology” Minoxidil and pyrithione zinc combo most effectively increases hair density.
January 2018 in “Surgical and Cosmetic Dermatology” The method is effective for evaluating hair loss treatments quickly and affordably.
5 citations
,
October 2012 in “The Journal of Dermatology” Traumatic panniculitis can cause increased hair growth in affected areas.
February 2019 in “PubMed” The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
30 citations
,
April 2017 in “Journal of structural biology” Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.
1 citations
,
September 2021 in “International journal of research - granthaalayah” Human hair has bipolar electrical charges because of a gap in the hair follicle's electromagnetic field.
December 2021 in “Skin appendage disorders” A reliable severity score for female pattern hair loss was developed and validated.
Combining dermoscopy and calcium fluorescent white staining improves diagnosis and treatment of hair fungal infections.
50 citations
,
June 2014 in “Experimental and Clinical Endocrinology & Diabetes” Hair hormone levels can indicate obesity-related changes and are useful for research and clinical practice.