research Hair pull test: Evidence-based update and revision of guidelines
The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.
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research The arrector pili muscle, the bridge between the follicular stem cell niche and the interfollicular epidermis
The study suggests that the arrector pili muscle is important for hair health and its damage might contribute to hair loss.
research Insertional mutation of the hairless locus on mouse Chromosome 14
A gene mutation in mice causes permanent hair loss and skin issues.
research Histology of the Human Hair Follicle
Understanding hair follicle structure is key for treating hair disorders and could help develop new treatments.
research Hair’s the Question: Scalp Micropigmentation
research Vibrissa hair bulge houses two populations of skin epithelial stem cells distinct by their keratin profile
There are two types of stem cells in rodent hair follicles, each with different keratin proteins.
research Measurement of hair growth
Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
research Preparing the hair follicle canal for hair shaft emergence
A specific type of skin cell creates an opening for hair to grow out, and problems with this process can lead to skin conditions.
research The Role of the Hairless (hr) Gene in the. Regulation of Hair Follicle Catagen Transformation
The hairless (hr) gene is essential for normal hair follicle function and its mutation leads to hair loss.
research [Effect of biotin on hair roots and sebum excretion in females with diffuse alopecia].
research The muscarinic acetylcholine receptor in dermal papilla cells regulates hair growth
Muscarinic acetylcholine receptors help regulate and promote hair growth.
research Hairless: A nuclear receptor corepressor essential for skin function
The Hairless gene is crucial for healthy skin and hair growth.
research The Transcriptomics and Epigenomics of Hair Follicles
research Genetically separable determinants of hair keratin gene expression
Mutations in the Whn gene affect hair keratin gene expression differently.
research [Congenital hereditary hypotrychosis. Generalized autosomal dominant hypotrichosis with pili torti (hypotrichosis congenita hereditaria Marie Unna)].
A hereditary condition causes hair loss and twisted hair in some family members.
research The Transverse Anatomy of Androgenic Alopecia
The study found that horizontal sections of scalp biopsies are better for analyzing hair loss, showing fewer hairs and more fine hairs in balding areas.
research Recognition of the ultrastructure of the hair follicle of Cashmere goats under the transmission electron microscope
Recognizing ultrastructures of cashmere goat hair follicles helps identify and locate follicle layers.
research Expression of mRNA for androgen receptor, 5alpha-reductase and 17beta-hydroxysteroid dehydrogenase in human dermal papilla cells
Hair sensitivity to androgens is partly controlled by specific enzyme expressions in different hair areas.
research Congenital Hypotrichosis in Japanese White Strain (JW-NIBS) Rabbits.
A single recessive gene causes sparse hair in certain Japanese White rabbits.
research ‘Atrichosis’, a new hairless gene with cyst formation in rats
A new gene causes hairlessness and skin cysts in rats.
research FINE HAIR ON AMERICAN BOVINE LEATHERS
Fine hair on bovine leathers is hard to remove, lowering leather quality and value, but can be managed with specific processing methods.
research Traction Alopecia in the Beard
research Hairless and the polyamine putrescine form a negative regulatory loop in the epidermis
Hairless protein and putrescine regulate each other, affecting hair growth and skin balance.
research Gross morphology and ultrastructural characterization of the skin in Yuyi hairless mice(Mus musculus)
Yuyi hairless mice lose hair after birth, develop thick, loose skin with folds, and show disorganized skin structure as they age.
research The Immunohistochemical Changes of Skin during Hair Follicle Cycle after Depilation in Mice
Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
research The disrupted balance between hair follicles and sebaceous glands inHoxc13‐ablated rabbits
Rabbits lacking the Hoxc13 gene show similar hair and skin issues to humans with ECTD-9, making them good for research on this condition.
research Trichohyalin: Presence in the Granular Layer and Stratum Corneum of Normal Human Epidermis
Trichohyalin is also found in the outer layers of normal human skin.
research Measuring Hair
Human head hair can grow very long and is thicker than most body hair.
research Hair Restoration Surgery in Patients with Hypotrichosis of the Pubis
Hair restoration surgery can effectively increase pubic hair density, with patient satisfaction and natural results largely depending on the chosen hair pattern and graft design.
research HairMeasure: A Cost-Effective Device for Measuring Hair Mass Index
The HairMeasure device is a cheap way to measure Hair Mass Index and find scalp areas for hair exams.