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This study identified the Hairless (Hr) gene-encoded protein as a corepressor that plays a crucial role in maintaining skin and hair by regulating epithelial stem cell differentiation and gene expression via chromatin remodeling, which may impact both development and disease.

TRPV4 slows hair growth by affecting hair follicle cells.

Sfrp2 increases during hair follicle catagen phase and slows keratinocyte growth.

This review synthesizes current research on PPAR-γ signaling in hair follicle biology and its potential role in treating hair growth disorders like scarring alopecia and hirsutism, but reports no new clinical results.

This study found that epimorphin and a modified peptide, pep7, can stimulate hair follicles to shift from a resting phase to a growing phase in both an organ culture assay and in mice.

Genetic changes in mice help understand skin and hair disorders, aiding treatment development for acne and hair loss.

This research found that spontaneous and depilation-induced hair growth result in biologically distinct telogen phases in murine skin, with variations in thickness, pigment content, and hair follicle composition.

This study found that human umbilical cord blood mesenchymal stem cells promoted hair growth by advancing anagen onset and increasing hair follicle regeneration in an in vivo model.

This study found that telogen, a resting phase of the hair follicle cycle, is characterized by dynamic gene expression, including enhanced cholesterol metabolism and immune signaling, suggesting it is an active regulatory phase despite its quiescent appearance.

This study found that hypoxia increases the proliferation of dermal papilla cells and highlighted the important role of lactate dehydrogenase in this process.

This study found that loss of the ACER1 gene in mice led to increased ceramide levels and progressive hair loss, highlighting ACER1's role in maintaining hair follicle stem cell homeostasis.

This review focuses on the medical treatment of common nonscarring alopecias, including androgenetic alopecia, alopecia areata, and telogen effluvium, and reports no new clinical results.

This study identified distinct gene expression patterns in wool follicle bulbs that may play important roles in wool follicle cycling and regeneration in sheep.

This study found that calbindin-D9k knockout mice on a maternal vitamin D-deficient and low-calcium diet developed transient alopecia, but a high-vitamin D and calcium diet in mothers reduced this effect.

This research suggests that the vitamin D receptor may regulate hair follicle cycling and provide genoprotection against skin carcinogenesis through a mechanism independent of 1,25-dihydroxyvitamin D3, based on evidence from mouse models.

This narrative review describes various types of alopecia in women and their diagnostic and treatment approaches but presents no new clinical findings.

This study developed a mouse model to monitor hair follicle cycling macroscopically through live bioluminescence imaging, enabling detailed analysis of hair cycle and propagation dynamics influenced by environmental factors.

This study found that BNC2 is critical for hair follicle regeneration and other developmental processes, as Bnc2−/− mice exhibit incomplete hair follicle development and developmental defects, and BNC1 cannot substitute for BNC2.

This study found that deleting podoplanin in mouse keratinocytes promoted hair follicle growth during regeneration, suggesting it may regulate hair cycling pathways that could aid in treating hair loss conditions.

This review covers various aspects of hair biology, pigmentation, and development, focusing on genetic and biochemical modulation of hair follicle components but reports no new findings.

This study found that Ginkgolide B and bilobalide from Ginkgo biloba increased dermal papilla cell viability and promoted hair follicle growth in mink models by influencing signaling pathways.

This review discusses the roles of the transcription factor SOX9 in organ development and maintenance, providing insights into its regulation and diverse functions, but reports no new experimental results.

This study found that Hairless (HR) and putrescine form a negative regulatory network that impacts epidermal homeostasis and hair follicle cycling, linked to the MYC superfamily's regulation of ODC expression.

This study found that transgenic mice expressing HPV E6/E7 in the outer root sheath experience continuous hair follicle cycling due to delayed catagen entrance and insensitivity to telogen resting signals.

This study highlights that while hair follicle cycling is primarily influenced by growth factors like IGF-1 and Wnt signals, the role of cytokines in normal human hair growth and cycling is less understood.

This study found that biologic therapies, particularly anti-TNF-alpha agents, have been linked to increased cases of alopecia areata in patients treated for autoimmune disorders.

This study describes a novel hairless mutant rat strain, F344-Hr(krh), developed via ENU mutagenesis, which provides a model for skin disease and potentially focal glomerulosclerosis due to specific genetic mutations.

This review examines the challenges of hair follicle regeneration and outlines strategies for bioengineering human hair follicle models, without presenting new experimental results.

Collagen XVIII is crucial for maintaining tissue structure and function in the brain, kidneys, and hair.

This study found that oxybenzone is very stable under light exposure, contradicting previous findings of its oxidation to semiquinone after solar irradiation.