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This study utilized advanced imaging techniques to quantify hair damage and dye uptake dynamics, revealing that compound penetration in hair is influenced by molecule size and lipophilicity.

Hair health is influenced by genetics, aging, and environmental factors, with proper care needed to maintain it.

This study reports that hair fibers degrade most in acidic sandy clay, while silicone oil treatment is effective for conserving various hair types and artifacts.

Curly and straight hair differ in how their internal fibers are arranged.

This study presents computational modeling and experimental analysis of the HGT protein KAP8.1, identifying key structural features that may influence hair's response to environmental conditions.

This study found that moisture sorption properties of wool and hair fibers from various animals were similar, despite different structural features, with sorbed water being more ordered than liquid water.

This descriptive literature review suggests that rosemary essential oil may stimulate hair growth in androgenetic alopecia with effects similar to 2% minoxidil, yet highlights the need for more robust clinical trials to confirm these findings and assess complementary methods like scalp massage and high-frequency treatment.

This study found statistically significant patterns in hair morphology and ultrastructure linked to biogeographic ancestry among European, African, and East Asian populations.

This study used single-cell RNA sequencing to map the cellular composition of sheep hair follicles, revealing differentiation pathways and potential molecular mechanisms for wool curvature, which may inform sheep breeding.

This study identified differentially expressed proteins and pathways potentially involved in wool bending in Zhongwei goats, with specific genes like COL6A1 and CRNN emerging as important candidates in this process.

The book discussed in this abstract is a comprehensive guide to hair analysis, detailing the latest methods and applications across various fields such as toxicology and drug monitoring, designed for both newcomers and experts in the field.

This article discusses the characteristics of human hair, its damaging processes, and the potential repair effects of immuno-cosmeceuticals, but it reports no new clinical results.

This biographical abstract highlights George Rogers' pioneering contributions to the understanding of keratin molecular structure and keratinisation biochemistry, including the application of electron microscopy to hair ultrastructure and the discovery of enzymes and gene transcription processes relevant to keratin proteins.

This study identified new geometric and mechanical parameters for curly and kinky/coily hair, which may inform more effective personal care products tailored to these hair types.

This study used quantitative methods to identify new geometric and mechanical parameters of curly and kinky/coily hair, aiming to improve classification and develop better personal care products for these hair types.

This review discusses the interrelationship between the anterior pituitary's adrenocorticotropic hormone (ACTH) and the adrenal cortex, but reports no new experimental findings.

This study found that somatic mosaic mutations in the doublecortin gene may cause subcortical band heterotopia in male patients, and molecular analysis using hair roots is a useful detection method.

Human hair follicles have their own thyroid hormone system.

This study found that human scalp hair follicles can respond to corticotropin releasing hormone stimulation similarly to the classical HPA axis, including up-regulating cortisol production and activating neuroendocrine feedback loops.

This study found that human hair follicles can function like a peripheral hypothalamic-pituitary-adrenal axis, synthesizing cortisol in response to corticotropin-releasing hormone and adrenocorticotropic hormone stimulation.

This case report describes a functional adrenocortical oncocytoma that co-secreted testosterone and cortisol.

This case report describes a testosterone- and cortisol-secreting adrenocortical oncocytoma causing hirsutism in a 23-year-old woman, highlighting adrenal oncocytomas as an important consideration for differential diagnosis.

This study found that pilomatricomas exhibit co-expression of hair keratin hHa5 and HOXC13 in lower transitional cells, but lack LEF1 and β-catenin co-expression necessary for canonical Wnt signaling pathway-controlled cortical differentiation.

This report describes a rare case of ectopic adrenocorticotropic hormone syndrome caused by a pheochromocytoma that unusually co-expresses both ACTH and corticotropin-releasing hormone.

This study discovered a new region in the hair cortex where intermediate filaments are both aligned with the hair's axis and orientationally ordered, influenced by the cuticle boundary.

This case report describes a young woman with an adrenal oncocytic tumor of uncertain malignant potential, highlighting the need for ongoing surveillance due to possible malignancy.

This review discusses the role of corticotropin-releasing hormone in human skin, focusing on its regulation, receptors, and functions, and highlights parallels with the hypothalamo-pituitary-adrenal axis; it reports no new research findings.

Krox20 is important for cell differentiation in the brain and hair follicles.