research Segmental hair analysis - a retrospective testosterone diary?
Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
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research Analyzing the laser-light reflection from human hair fibers. I. Light components underlying the goniophotometric curves and fiber cuticle angles.
The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.
research UV damage of the hair.
Excessive sun exposure damages hair, causing protein loss and color changes.
research Spontaneous hair hyperpigmentation in response to vitamin intake in pregnancy—A clue for homocystinuria
Taking vitamin B6 corrected a pregnant woman's metabolic disorder, which changed her hair color.
research A retrospective review of hyperaesthetic leucotrichia in horses in the USA
Hyperaesthetic leucotrichia in horses causes painful, recurring skin lesions and hair color changes, especially in Arabian and American paint horses.
research Drug-Induced Hair Disorders
Some drugs can cause hair loss, excessive growth, or color changes, often reversible but sometimes permanent.
research 1363 Hair follicle growth and pigmentation during ageing
The research found that a specific skin cell type not only triggers hair growth but also controls hair color, and that aging can lead to hair loss and color changes.
research Morpho‐regulation in diverse chicken feather formation: Integrating branching modules and sex hormone‐dependent morpho‐regulatory modules
Sex hormones, especially estradiol, can change chicken feather shapes and colors.
research Topical minoxidil reported hair discoloration: a cross-sectional study
Minoxidil, a common hair treatment, may cause hair to turn grey or change color, especially with long-term use or if you have a family history of grey hair.
research Androgens in postmenopausal women
Testosterone in older women can increase bone density, muscle mass, fat mass, improve memory, and boost libido, but may cause nipple color changes.
research [Adverse drug reactions on hair].
Some drugs can cause hair loss, increase hair growth, or change hair color, but stopping the drug usually reverses these effects.
research Histopathology of aging of the hair follicle
Hair becomes gray and thin as we age, and while most hair loss in older people is due to genetics, there's a chance for gray hair to regain color under certain conditions.
research Hair Manifestations of Systemic Disease
Hair changes can indicate systemic diseases or medication effects.
research The agouti mouse model: an epigenetic biosensor for nutritional and environmental alterations on the fetal epigenome
Diet changes can protect against harmful environmental effects on fetal development.
research Tyrosinase Depletion Prevents the Maturation of Melanosomes in the Mouse Hair Follicle
Reducing Tyrosinase prevents mature color pigment cells from forming in mouse hair.
research Hair Coloration by Gene Regulation: Fact or Fiction?
Gene regulation could revolutionize hair color by altering pigmentation from within.
research Hair Follicle Pigmentation
Hair color is determined by melanin produced and transferred in hair follicles.
research Genetic variation in the ovine KAP22-1 gene and its effect on wool traits in Egyptian sheep
Certain genetic changes in the KAP22-1 gene are linked to better wool quality in Egyptian sheep.
research Corrigendum: Stimulation of hair regrowth in an animal model of androgenic alopecia using 2-deoxy-D-ribose
The correction does not change the conclusion that 2-deoxy-D-ribose helps hair regrowth.
research Demographic Profile of Patients Receiving Dermatological Care Before and During the COVID - 19 Pandemic
During the COVID-19 pandemic, dermatology visits decreased, especially among older patients, patients of color, men, and those with chronic conditions.
research Rapid hair depigmentation in patient treated with pazopanib
Pazopanib treatment caused rapid hair color loss, possibly indicating its effectiveness.
research An Analysis of Ultrastructure of the Hair of Children Treated With Valproic Acid
Valproic acid may cause temporary hair changes like loss or thinning in children.
research Repigmentation of hair following adalimumab therapy
A patient's grey hair regained color during treatment with adalimumab.
research Scanning electron microscopy and morphometric analysis of the hair in dromedaries with SEM-EDX in relation to age
Dromedary camel hair structure and mineral content change with age.
research Hair and nail disorders
Hair and nail disorders can cause changes in scalp pigmentation, especially with sun exposure and alopecia.
research 687 BMP signaling in the hair follicle stem cell niche regulates hair growth and skin pigmentation
BMP signaling controls hair growth and skin color.
research Pharmacological BACE1 and BACE2 inhibition induces hair depigmentation by inhibiting PMEL17 processing in mice
Blocking BACE1 and BACE2 enzymes causes hair color loss in mice.
research Heptaminol-Induced Hair Depigmentation in a Hemodialysis Patient
Stopping heptaminol medication reversed hair color loss in a patient on dialysis.
research Chemically Induced Depigmentation of Skin and Hair
Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.
research Case Report: Reversing Gray Hair Associated With COVID-19: A Coincidence or a Clue?
COVID-19 might cause gray hair to regain color.