research Frontal fibrosing alopecia
Frontal fibrosing alopecia causes hair loss at the front hairline, and no effective treatment exists.
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research Temporal triangular alopecia
Temporal triangular alopecia is a lifelong condition with hairless patches on the side of the head that may be present from birth.
research Senescent alopecia (“senile alopecia” or “senescent balding”)
Senescent alopecia is a type of hair loss that occurs after age 50, not caused by genetics, and involves a gradual thinning of hair without significant inflammation.
research Microneedling for female pattern hair loss: case report and histopathological changes
Microneedling showed slight improvement in hair loss but no major changes in hair follicles or scalp condition.
research A Keratin Fiber Sheath
Hair fibers may have a unique, non-protein sheath not previously identified.
research Trichilemmoma.Cell biology of the normal human outer root sheath.
The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.
research Dynamic ultrastructural changes of the connective tissue sheath of human hair follicles during hair cycle
The connective tissue around hair follicles changes structure throughout the hair cycle.
research Isolation and properties of inner sheath cells of hair follicles
research Outer root sheath keratinization in anagen and catagen of the mammalian hair follicle. A seventh distinct type of keratinization in the hair follicle: trichilemmal keratinization.
Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.
research Fine structure of marsupial hairs, with emphasis on trichohyalin and the structure of the inner root sheath
Marsupial hair structure and keratin distribution are similar to placental mammals.
research A highly resistant structure between cuticle and cortex of human hair
A tough membrane between the outer and inner layers of human hair protects it from damage.
research The keratin fibres
research Nucleation and growth of macrofibrils in trichocyte (hard-α) keratins
Sheet formation is key to macrofibril structure differences in wool.
research Outer root sheath (ORS) cells organize into epidermoid cyst-like spheroids when cultured inside Matrigel: a light-microscopic and immunohistological comparison between human ORS cells and interfollicular keratinocytes
research Fine structure and immunocytochemistry of monotreme hairs, with emphasis on the inner root sheath and trichohyalin‐based cornification during hair evolution
Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
research Cytochemistry of Trichohyalin Granules: A Possible Role for Cornification of Inner Root Sheath Cell in the Hair Follicle
Trichohyalin granules help inner root sheath cells in hair follicles harden by integrating with keratin filaments.
research 862 Defining the molecular signature of the hair follicle dermal sheath and its functional requirement for hair cycle progression during catagen
The hair follicle dermal sheath is essential for hair shedding and needs to communicate with the outer root sheath for normal hair growth cycles.
research Keratinization of outer root sheath cells is prevented by contact with inner root sheath of rat hair follicles
research Formation of surface membranes in developing mammalian hair fibres
Mature hair surfaces are formed by keratinized cells with developed layers, not just modified plasma membranes.
research Hair sheath keratins in follicular tumors. (5). Identification of hair sheath keratins in keratoacanthoma; Histopathological hair sheath structures in the tumor and their significance as differential histopathological criteria from squamous cell carcinoma.
Follicular structures help differentiate keratoacanthoma from squamous cell carcinoma.
research The cell membrane complex: Three related but different cellular cohesion components of mammalian hair fibers
The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.
research Keratin formation in the hair follicle
Keratin fibrils in hair form and stop growing at specific points in the follicle.
research Connective tissue sheath of hair follicle is a major source of dermal type I procollagen in human scalp
The hair follicle's connective tissue is a key source of a certain collagen in human scalp skin.
research Hair Follicle Proteoglycans.
research Abnormal inner root sheath of the hair follicle in the loose anagen hair syndrome: An ultrastructural study
Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.
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 Ultrastructural characteristics of trichilemmal cysts: report of two cases
Trichilemmal cysts may form from hair follicle outer root sheath growth.
research Hair-raising Mysteries of the Inner Root Sheath: Unearthing Treasures in Bald Spots
The inner root sheath in hair follicles plays a key role in hair growth and health.
research Trichohyalin: A structural protein of hair, tongue, nail, and epidermis
research Proliferating trichilemmal cyst with histological malignant transformation: Identification of hair sheath keratins in the tumor.
A hair cyst can become cancerous, showing specific keratins from the hair sheath.