research Influence of Depigmenting Chemical Agents on Hair and Skin Color in Yellow (Pheomelanic) and Black (Eumelanic) Mice
Certain chemicals cause hair graying in black mice but not yellow mice.
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research Aging of the Hair Follicle Pigmentation System
Hair grays due to oxidative stress and fewer functioning melanocytes.
research HGF/SF Increases Number of Skin Melanocytes but Does Not Alter Quality or Quantity of Follicular Melanogenesis
HGF/SF increases skin melanocytes but doesn't change melanin type or amount.
research The Murine Hair Follicle Is a Melatonin Target
Melatonin directly affects mouse hair follicles and may influence hair growth.
research Genome-Wide Association Study of Fiber Diameter in Alpacas
Certain DNA regions in alpacas are linked to fiber diameter.
research Beyond the Epidermal-Melanin-Unit: The Human Scalp Anagen Hair Bulb Is Home to Multiple Melanocyte Subpopulations of Variable Melanogenic Capacity
The human scalp hair bulb contains different types of melanocytes with varying abilities to produce melanin.
research Decreased Benzothiazole-Type Pheomelanin in Regrown Brown Hair in Alopecia Areata
The girl's regrown brown hair had less of certain pigments than her original black hair.
research Influence of Pigmentation on the Codeine Content of Hair Fibers in Guinea Pigs
Darker hair in guinea pigs holds more codeine than lighter hair.
research Human Skin Color: Origin, Variation, and Significance
Human skin and hair color variation is mainly due to melanin produced by a few genes, with melanin protecting against sun damage.
research Circulating Testosterone and Feather-Gene Expression of Receptors and Metabolic Enzymes in Relation to Melanin-Based Coloration in the Barn Owl
Barn owls with smaller black spots have higher testosterone levels, which might be due to genetic effects on hormone regulation rather than hormone effects on coloration.
research Piecing Together the Pigment-Type Switching Puzzle
The document concludes that MGRN1 affects mouse fur color by interfering with a receptor's signaling, but its full role in the body is still unknown.
research Sox2 in the Dermal Papilla Regulates Hair Follicle Pigmentation
Sox2 controls hair color by affecting pigment production in hair follicles.
research How Different Is Human Hair? A Critical Appraisal of Global Hair Fibre Characteristics and Properties Towards Defining a More Relevant Framework for Hair Type Classification
Human hair varies widely and should be classified by curl type rather than race.
research A Review of the Etiologies, Clinical Characteristics, and Treatment of Canities
Gray hair is caused by reduced melanin production or transfer issues, linked to aging and possibly health conditions, with treatments focusing on color camouflage.
research Melanogenesis-Promoting Effect of Cirsium Japonicum Flower Extract In Vitro and Ex Vivo
Cirsium japonicum flower extract increases melanin production and could help treat depigmentation conditions.
research Hair Follicle Melanogenesis Reflected in Hair Pigmentation as a Developmental Factor in Alopecia Areata
Hair color is not a risk factor for developing alopecia areata.
research Hair
Hair analysis can detect drug use but is costly and interpretation is complex.
research Pull Test and Trichogram
Physical exams are important in hair loss diagnosis, considering cosmetic history, systemic diseases, and classifying alopecia types.
research Transgenic Endothelin 3 Regulates Murine Pigment Production and Coat Color
The gene Endothelin 3 makes mice's fur darker by increasing pigment cells and pigment levels.
research Growth Inhibition and Transient Temperature Measurement of Laser-Irradiated Hair Fibers and Follicles
Laser treatment can inhibit hair growth and different hair colors reach different temperatures when lasered.
research The Potential Impact of Melanosomal pH and Metabolism on Melanoma
Melanin may help melanoma cells grow by aiding their metabolism.
research Scalp Hair Repigmentation in the Penumbral Region of Radiotherapy: A Case Series
Radiotherapy can cause rare changes in hair color, which should be discussed with patients.
research The Human Hair: From Anatomy to Physiology
The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.
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 Black Women's Hair: The Main Scalp Dermatoses and Aesthetic Practices in Women of African Ethnicity
Black women's unique hair characteristics and styling practices can lead to specific scalp conditions, which require early diagnosis and appropriate treatment.
research Sunscreens and Hair Photoprotection
Hair sunscreens are important for maintaining hair's cosmetic value.
research The Removal of Unwanted Hair Using a Ruby Laser
Ruby laser hair removal significantly reduces hair density.
research Hair Coloration by Gene Regulation: Fact or Fiction?
Gene regulation could revolutionize hair color by altering pigmentation from within.
research Effect of Honeysuckle Extract for Color Protection of Human Hair Exposed to Sunlight Radiation
Non-ionic silicone emulsion best protects hair color from sunlight.
research Increased 25(OH)D3 Level in Redheaded People: Could Redheadedness Be an Adaptation to Temperate Climate?
Redheaded people may have evolved to efficiently make vitamin D in areas with less sunlight.