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Oxidation changes the structure of hair protein filaments, causing them to compact and rearrange.

In this study, trichocytes were shown to have potential for alternative differentiation, with mesenchymal cell influences playing a critical role in determining this process.

In this study, researchers describe a rare case of trichoepitheliomas in a 7-year-old boy, characterized by multiple skin lesions in a Blaschko-linear pattern, hypothesizing it as a type 1 segmental mosaicism without detected CYLD gene mutations.

This article discusses various types of primary cicatricial alopecias and reports no new clinical results; it emphasizes the importance of accurate diagnosis for effective management.

This study identified morphotype-specific gene expression patterns in feathers, enhancing understanding of the molecular and cellular processes involved in feather development and diversification.

This study found that while ethnic hair types share a common fibrous keratin structure, variations in keratin-associated proteins and lipids may lead to different macroscopic hair characteristics.

This study used cashmere goats to reveal distinct intermediate states of dermal papilla cells, each with specific roles in hair growth, shedding, and regeneration.

This study reports that KRTAP-like proteins, which resemble keratin-associated proteins found in mammals, are also present in the cornified teeth of various lamprey species, suggesting these proteins may serve similar functions in skin appendages across different vertebrates despite independent evolutionary origins.

This study found that dermal papilla cells exhibit stage-dependent variation in histone methylation during the hair follicle cycle and display distinct chromatin marker expression when transitioning to in vitro culture.

This study identified black dots as the most common trichoscopic sign in children with alopecia areata, which is crucial for diagnosis and understanding disease severity and prognosis.

This study examined the microscopic characteristics of hair or feather in five animal drug components of the Shenrongbian pill, identifying distinctive medulla cell shapes and hair cuticle patterns for each component.

This study reports the development of a natural hair-coloring system using size-controlled ink particles from cuttlefish ink combined with chitosan, achieving darker and more uniform black coloration on hair than existing plant-based natural colorants, without the need for metallic mordants.

This study found that Brandt's hedgehog has the thickest skin on its back and the thinnest on the cloacal region, with sebaceous and sweat glands primarily located in the nostril area.

In this case report, the authors found that pigmented demodicosis, caused by Demodex mites, led to facial hyperpigmentation in a 16-year-old male and showed significant improvement with oral isotretinoin and topical ivermectin treatment.

This study purified trichohyalin protein from pig tongue epithelium, characterizing its unique properties and structure, which may facilitate future functional research.

This article reports electron microscope studies on the structure of hair and wool, but it does not present new clinical findings.

This abstract suggests that specific trichoscopic features like black dots, coiled hair, and trichoptilosis may help differentiate trichotillomania from patchy alopecia areata.

This study found that pigmented hair-thickening fibers improved the appearance of scalp alopecia in patients with epidermolysis bullosa, although they may cause pruritus and should be used cautiously.

In this study, beta-catenin expression was found to be significant in embryonic goose skin during early feather bud development, with patterns similar to Shh expression, suggesting its importance in normal development.

This study mapped a detailed genetic profile of goat hair follicle apoptosis, identifying key genes and regulatory factors involved in the hair cycle, offering new insights into programmed cell death.

This study documents dominant transmission and complete penetrance of uncombable hair syndrome in a family, despite the father lacking visible abnormalities.

In this study, researchers found that the prevalent Glu 410 Lys mutation in hHb6 and a new Glu 403 Lys mutation in hHb1 are linked to monilethrix, suggesting a mutational hotspot in type II hair keratins.

Postinflammatory hyperpigmentation causes dark skin patches and needs personalized treatment.

This letter argues that cicatricial pattern hair loss likely represents end-stage androgenetic alopecia and not a variant of lichen planopilaris, as previously suggested.

In this observational study, researchers found that alopecia areata is associated with specific trichoscopic features, such as black dots, yellow dots, and vellus hair, and highlighted trichoptilosis as a potential overlap feature with other hair disorders, suggesting a need for further differentiation between these conditions.

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 study found that a multicolor panel of four surface markers can identify new stem cell populations in mouse hair follicles, providing insights into stem cell diversity and gene expression discrepancies during tissue culture.

This study suggests that congenital atrichia with papular lesions may be more common than previously thought and proposes diagnostic criteria including the observation of hypopigmented whitish streaks on the scalp.

This study observed that injecting mice with α-MSH resulted in black hair regrowth in shaved and plucked areas, suggesting a potential link to the agent darkening hair in animals with a specific pituitary tumor.