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This study found that Notch signalling promotes differentiation of epidermal cells and acts as a tumour suppressor in the skin by interacting with various pathways and mechanisms.

This study found that BMP-2 activates Dlx3 gene transcription in murine keratinocytes by binding with Smad1/Smad4, suggesting a mechanism for BMP signaling's role in skin and hair follicle regulation.

This study found that transcription factors HOXC13, LEF1, and FOXN1 repress DSG4 transcription, with the Notch pathway possibly involved in maintaining DSG4 expression in hair follicles.

This study found that while malignant pilomatricomas maintain some keratin expression patterns seen in benign counterparts, they notably express additional epithelial keratins, potentially influencing tumor calcification.

This report expands the known genetic mutations linked to monilethrix by identifying new patients with KRT83 mutations, confirming its role as a causative gene for this hair disorder.

This article illustrates that dermoscopy can quickly diagnose hair breakage due to intrinsic and chemical factors in patients of African descent, although published findings are limited.

KAP8.1 protein is crucial for hair structure and interacts with keratin 85.

In this study, incorporating a novel amino acid compound into a hair-straightening formulation improved humidity-resistant straightening and enhanced the surface and mechanical properties of hair fibers, including increased bending stiffness, reduced friction, and better shape retention under high temperature and humidity conditions.

This article discusses the biology of cosmetic aging and the chemical pathways involved, emphasizing research advancements that aid clinicians in rejuvenating skin and increasing scalp hair density, but it provides no new results.

This study found that PRC2 plays a crucial role in maintaining intestinal homeostasis by supporting progenitor cell proliferation and limiting secretory lineage differentiation.

This study observed an association between intense itching in anterior chest keloids and an increased density of nerve fibers in the epidermis, alongside elevated expression of the pruritus mediator substance P, though no difference was found in Langerhans cells related to pruritus, location, or region.

This case report identifies a new type of hair matrix tumor called "rippled pattern trichomatricoma," distinguished by its unique cell arrangement and differentiation features.

This study found that cortexolone 17α-propionate showed strong topical antiandrogenic activity, outperforming progesterone and several known antiandrogens, but lacked systemic antiandrogenic effects in animal models.

This study demonstrates that α-parvin is crucial for epidermal morphogenesis and hair follicle development by mediating integrin-dependent adhesion and actin organization in keratinocytes.

This study found that intracorneal vacuoles were common in various parakeratotic skin diseases in dogs, but large vacuoles were exclusively observed in congenital follicular parakeratosis.

PCFCL may have unrecognized subtypes and needs more research.

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.

This study found that ossification in trichilemmal cysts may be more common than previously thought, often associated with cyst wall rupture, and reports a novel case of ossifying TC with extramedullary hematopoiesis.

A man had a non-cancerous, fast-growing skin lump on his arm that was removed with surgery.

This study found that calcitonin‐gene‐related peptide immunoreactive sensory axons in rats are predominantly involved in tissue maintenance rather than nociceptive functions.

This study found that telocytes in human scalp tissue were located around hair follicles and glands and may be involved in skin regeneration and homeostasis.

In this study, researchers reported two cases of the rare and benign follicular tumor called panfolliculoma, highlighting its differentiation across all hair follicle components, which is distinct from similar conditions like trichofolliculoma.

This study revealed the complex three-dimensional innervation of touch domes in cat forepaw skin, highlighting the extensive branching and unmyelinated endings associated with Merkel cell–axon complexes.

In this case report, a rare pilar cyst was found in the left temporal region of a 75-year-old male, highlighting the potential for such cysts to mimic temporal space infections and complicate treatment plans.

This study suggests that the epidermis of monotremes and marsupials exhibits a more primitive pattern of protein distribution compared to eutherian mammals, with differences in loricrin distribution and keratinocyte maturation.

This study analyzes the fine structure and protein distribution in monotreme hairs, finding similarities with other mammals and detailing unique immunocytochemical features in their inner root sheaths.

This study isolated and characterized two distinct types of caspase-like proteases from human epidermis, suggesting their involvement in keratinocyte differentiation and apoptosis processes.

Keratin-associated proteins are crucial for hair strength and structure.

This study found that while molecular hair structures were nearly identical across individuals, genetic factors seem to influence specific lipid compositions, as seen in identical-patterned hair from parent-child pairs and identical twins, but not fraternal twins.