research Phylogeny of the Hair Follicle: The Sebogenic Hypothesis
Hair follicles evolved from oil glands, with hair aiding secretion transport.
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research Papular atrichia
An 8-year-old girl has a rare, irreversible hair loss condition caused by a genetic mutation.
research Human hair production by scalp samples grafted onto nude mice. Biochemical data on normal human hair and the genetic defect trichothiodystrophy
Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.
research Intragenic deletion in the Desmoglein 4 gene underlies the skin phenotype in the Iffa Credo “hairless” rat
A gene deletion causes the "hairless" trait in Iffa Credo rats.
research Trichoscopic Findings of Hair Loss in Koreans
The study found specific hair and scalp patterns for different types of hair loss in Koreans, noting racial differences affect diagnosis.
research From rare hypertrichosis to common alopecia: new pathways for hair regeneration
research A morphometric and histologic study of the scalp in psoriasis. Paradoxical sebaceous gland atrophy and decreased hair shaft diameters without alopecia.
Psoriasis on the scalp causes smaller oil glands and thinner hair but doesn't lead to hair loss.
research Analysis of slenderizing human hair fibers surface morphology
research Ugreelig hår
A young boy's uncombable hair is due to a rare genetic condition that usually improves over time.
research Hair Follicle Stem Cells
Hair follicle stem cells can generate all hair cell types, skin, and sebaceous glands.
research Keratins: the hair shaft's backbone revealed
Keratins are crucial for hair strength, and mutations in certain keratin genes cause hair disorders.
research CHANGES IN THE STRUCTURAL ELEMENTS OF THE SEBACEOUS HAIR FOLLICLE IN THE DIFFERENTIAL DIAGNOSIS OF NON-SCAR ALOPECIA
Thinner hair follicle structures are linked to non-scar alopecia.
research Ultrastructure of two types of glandular hairs of salvia farinacea benth during development
Capitate trichomes have more endoplasmic reticulum and vacuoles, while peltate trichomes have more plastids and larger subcuticular spaces.
research Structural changes in hair with fungus infections
research Distribution of Glycolipid and Unsaturated Fatty Acids in Human Hair
Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
research Congenital hair loss disorders: Rare, but not too rare
Some hair loss disorders are caused by genetic mutations affecting hair growth.
research Characterization of Hair Follicles in Hirosaki Hairless Rats with Deletion of Basic Hair Keratin Genes. Enlarged Medulla, Loss of Cuticle and Long Catagen
Hirosaki hairless rats have sparse, twisted hair due to missing hair keratin genes.
research A case of localized follicular hamartoma: an ultrastructural and immunohistochemical study
The hamartoma is an abnormal hair growth with limited development in the upper hair follicle.
research Cultural evolution as a possible triggering or causative factor of common baldness
Certain cultural hair practices might cause baldness by affecting natural hair oils and stem cell delivery to hair follicles.
research Hair as Displacement Record and Social Token: The Shaft as Temporal Archive, Natural Hair as S0_appearance, and Modification as Signal Displacement
Natural hair reflects identity and history, while modifications signal social pressures.
research Structural features of the α-type filaments of the inner root sheath cells of the guinea pig hair follicle
α-type filaments in guinea pig hair follicles have unique structural features.
research Changing Patterns of Localization of Putative Stem Cells in Developing Human Hair Follicles
Stem cells in developing hair follicles move to specific areas as they mature.
research Exploring Mechanical Niches Identified by Hair Follicle Compression and How These Transduce Proliferation and Differentiation Cues in Epidermally Derived cells.
Less stiff collagen promotes higher cell growth in hair follicles.
research Ultrastructural Localization of Hair Keratins in Human Scalp Hair Shafts as Revealed by Rapid-Freezing Immunocytochemistry.
Hair keratins are mainly on macrofibrils in the cortex and in the endocuticle in the cuticle.
research Compound Follicles in Folliculitis Decalvans Do Not Contain Vellus and Retained Telogen Follicles—A Pilot Histopathologic Series on Polytrichia
Compound follicles in folliculitis decalvans mainly have active hair follicles.
research A Closure Option for Sinuous Hairline Preservation on the Upper Forehead
research Studies of Developing Human Hair Shaft Cells In Vitro
research Orientation of Multi-Hair Follicles in Nonbald Men: Perpendicular Versus Parallel
Most men's multi-hair follicles naturally stand perpendicular to a line from the top of their head, which is important for natural-looking hair transplants.
research Occipital Hairline: A forgotten area
The conclusion is that surgeons should carefully create a natural-looking occipital hairline in hair transplants to avoid detection.
research Two siblings with uncombable hair syndrome: A new pathogenic variant
Two siblings have a rare hair condition caused by a new genetic variant.