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This article proposes a classification system for hair casts to resolve confusion in existing literature and describes a staining technique to distinguish peripilar keratin casts from other hair disorders, without providing new clinical results.

This study applied a new RGB trichrome stain to human skin samples, revealing distinct structural staining in normal tissues and potential proteoglycan-rich zones in hair follicles.

This article describes a new method for staining hair fibers that visualizes keratin filaments without the need for OsO4 fixation or sulfur bond breakage, but it provides no new experimental results beyond the method itself.

This review discusses the significance of elastic tissue staining in dermatopathology, particularly for diagnosing primary elastic tissue disorders and other skin conditions, but reports no new clinical results.

This study reported that patterns of fibrosis identified through elastin staining may help distinguish specific forms of primary cicatricial alopecia in biopsy specimens, with certain patterns suggesting particular diagnoses.

This study concludes that elastic tissue staining is the most reliable method for identifying scarring patterns in alopecia biopsy specimens, and polarized microscopy may provide specific insights for nonscarring alopecia.

This study found that the Elastic Verhoeff–Van Gieson stain may help differentiate between follicular streamers and scars in cicatricial and noncicatricial alopecias by highlighting differences in the elastic fiber network on horizontal scalp biopsy sections.

This study investigated the immunohistochemical characteristics of keratin proteins in epidermal appendages, finding variable staining patterns in different skin structures and tumor cells, which suggests differences in keratinization.

This study found that patients with severe alopecia areata demonstrated reduced corneal sensitivity and increased corneal staining, and exhibited altered topographic and biomechanical eye parameters compared to controls, suggesting a possible increased risk of keratoconus and the necessity for regular ophthalmological exams.

This study concluded that their modified immunohistochemical staining protocol can determine the ABO blood group of both medullated and non-medullated scalp hair, potentially aiding in hair sample screening before DNA analysis.

This study found that the distribution of hair keratin family proteins varies in normal scalp hair follicles, which may aid in identifying the origin of hair neoplasms.

This study describes a modified reduction-osmication method for staining human scalp hair that improves reagent penetration and visualization of hair cortex features using transmission electron microscopy.

This study found that FM dyes are effective markers for tracing live Merkel cells in in vitro experiments, as they remain visible for at least seven days and highlight cell shape better than quinacrine.

This study describes a double embedding technique for preparing tangential sections of hair and wool fibers, recommending specific staining methods for quantitative analysis and demonstrating wool fiber cortical fractions.

This study found that in a mouse model, betamethasone dipropionate reduced epidermal thickness while fish oil unexpectedly increased it, validating optical coherence tomography as an effective measurement tool.

In this study, the staining properties of two types of cysts, epidermal and pilar, were found to differ, supporting their origins from the epidermis and the trichilemmal hair follicle layer, respectively.

This article presents a protocol for using mouse tail skin to study hair follicle stem cells, enabling visualization of calcium signaling and other cellular features in various conditions but reports no new research data.

This study found that methylene blue staining may reveal anatomical details of intraepidermal nerve fibre endings in the rat mystacial pad with greater clarity than the zinc iodide-osmium tetroxide technique.

This study observed that methylene blue staining and zinc iodide-osmium tetroxide techniques effectively revealed anatomical details of intraepidermal nerve fibre endings in the rat's mystacial pad, suggesting their potential role in mechanoreception.

This study found that dermoscopy combined with calcium fluorescent white staining effectively aided in the early diagnosis and treatment evaluation of tinea capitis by highlighting specific hair changes and fluorescent patterns associated with different dermatophyte infections in a sample of 20 patients.

This study suggests that Artemis, particularly phosphorylated at serine 516, may have roles in hair follicle growth by influencing differentiation, proliferation, apoptosis, and cell cycling.

This study found that fluorescent antibody staining effectively differentiated between normal and tumor cells, with observed differences potentially linked to protein composition and developmental factors.

This case report describes canities subita, characterized by sudden hair whitening without hair loss, in a patient following a stressful event, suggesting an immune system involvement.

The researchers developed a technique for processing and staining free hair samples using paraffin embedded blocks, revealing that routine staining does not color the enucleated cuticle, while the cortex and medulla show distinct colorations when stained.

This study suggests that Bim and Puma proteins play a role in hair follicle development and maintenance, although they only partially overlap with apoptosis during normal hair cycle stages.

The document concludes that correct diagnosis of alopecia types is crucial, scalp biopsies are important, and more research is needed.

This review discusses the etiology, pathogenesis, clinical presentation, and treatment of frontal fibrosing alopecia, noting the lack of clinical trial data and limited observational treatment results.

This study observed that a 3D culture model of hair follicle cells showed an anagen-like phase between days 3 to 6 and transitioned to a catagen-like phase by day 7, highlighting cell differentiation and structural development over time.

This study found that adipocytes play a crucial role in skin wound healing by facilitating fibroblast recruitment and dermal reconstruction during the healing process.