research Regulation of human hair growth: hormones and neuropeptides
Hormones and neuropeptides affect hair growth, with androgens having opposite effects on beard and scalp hair.
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research Normal Hair Growth in Children
Children's hair grows in different types from before birth through puberty, with growth rates and characteristics varying by age, sex, and race.
research Sox2 in the dermal papilla regulates hair follicle pigmentation
Sox2 controls hair color by affecting pigment production in hair follicles.
research Human hair melanins: what we have learned and have not learned from mouse coat color pigmentation
We know a lot about mouse hair color, but not much about human hair color differences.
research Expression of the hair stem cell-specific keratin 15 in pilar tumors of the skin.
K15 staining helps distinguish basal cell carcinoma from trichoepithelioma.
research Human hair melanins: what we have learned and have not learned from mouse coat color pigmentation
We know less about human hair pigmentation than mouse coat color, but pH and cysteine levels are key factors.
research Lichen planopilaris in men: a retrospective clinicopathologic study of 19 patients
Lichen planopilaris in men often involves scalp redness and itching, with some also having hair loss, mucosal lichen planus, or thyroid disease, and treatment improved symptoms in nearly half of the cases.
research Multiple, hereditary dome-shaped papules and acrochordons. Birt-Hogg-Dube syndrome
The boy likely has a fungal infection causing hair loss.
research The distribution of melanocytes and the degradation of melanosomes in fetal hair follicles
Fetal hair follicles have melanocytes with melanosomes at different stages, which are broken down into pigment particles in keratinocytes.
research Disorders of excessive hair growth in the adolescent
Hirsutism in teen girls is common, usually harmless, but can sometimes signal serious issues and is treatable.
research 560 The molecular mechanism of PCE-DP, a novel brightening active ingredient
PCE-DP brightens skin and promotes hair growth by enhancing cell growth and reducing melanin uptake.
research Characterization of Hair Follicle Bulge in Human Fetal Skin: The Human Fetal Bulge Is a Pool of Undifferentiated Keratinocytes
research Temporary hair removal by low fluence photoepilation: Histological study on biopsies and cultured human hair follicles
Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.
research Towards a “free radical theory of graying”: melanocyte apoptosis in the aging human hair follicle is an indicator of oxidative stress induced tissue damage
Oxidative stress causes hair to gray by damaging and killing pigment cells.
research Reversible cutaneous hyperpigmentation and nails with white hair due to vitamin B12 deficiency.
Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
research Micropigmentation: Tattooing for Medical Purposes
Medical tattooing is a widely accepted, easy, and permanent treatment with few side effects but carries an infection risk without proper sterilization.
research Pseudopelade of Brocq
Pseudopelade of Brocq is a unique hair loss condition, but its cause and development are still not fully understood.
research Trypsin‐induced follicular papilla apoptosis results in delayed hair growth and pigmentation
Trypsin slows hair growth and affects color by causing cell death in hair follicles.
research Physiological and biological skin changes in pregnancy
Pregnancy causes skin changes like darkening, hair thickening, nail changes, and increased risk of skin growths, most of which usually resolve after birth.
research Different patterns of 5α-reductase expression, cellular distribution, and testosterone metabolism in human follicular dermal papilla cells
Androgen effects on hair follicles vary by skin area.
research Atrichia with papular lesions in two Pakistani consanguineous families resulting from mutations in the human hairless gene
research An unusual case of increased hair pigmentation in previously grey-white hair
A 73-year-old man's grey-white hair turned dark brown after eczema treatment.
research Polythelia pilosa: A Particular Form of Accessory Mammary Tissue
Polythelia pilosa is a type of extra breast tissue with hair and should be classified as such.
research ST Premature Graying Hair in Seven Years Old Children
Premature graying in young children can affect self-esteem, and addressing underlying health issues may reverse it.
research Pityriasis rubra pilaris
Pityriasis rubra pilaris is a rare skin disorder with reddish-orange patches and thickened skin, needing better treatment understanding.
research Improvement of Hair Graying during a Treatment of Male Pattern Hair Loss Using 1,927-nm Fractionated Thulium Laser Energy and Polydeoxyribonucleotide Injections
A treatment combining laser energy and injections improved hair loss and unexpectedly also reduced hair graying.
research The hair cycle on the human thigh and upper arm
Men's thigh hair grows longer and has a longer growth cycle than women's, but arm hair growth is similar between genders.
research Mechanism of action of androgen in hair follicles
Testosterone affects hair follicles differently across body sites, with beard hair follicles showing more activity of a specific enzyme and presence of androgen receptors compared to scalp hair.
research Δ5-3β-Hydroxysteroid Dehydrogenase Activity in Sebaceous Glands of Scalp in Male-Pattern Baldness
research Hair Steroid Profiling Reveals Racial Differences in Male Pattern Baldness between Korean and Caucasian Populations
Korean and Caucasian men with male pattern baldness have different hair steroid levels.