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This study found that sympathetic nerves and arrector pili muscles form a niche that modulates hair follicle stem cell activity, revealing their role in hair follicle regeneration.

This review examines the roles of Hedgehog and Gli proteins in mouse embryonic mammary development and suggests that Gli3-repressor-mediated off-state of Hedgehog signaling determines mammary fate over hair follicle fate.

This study suggests that fibroblast growth factors exhibit significant expression differences in rodent and primate skin, potentially related to their evolutionary paths and environmental adaptations.

This study identified mutations in the FGF5 gene as a cause of extreme eyelash growth in Pakistani families, highlighting a potential target for regulating eyelash growth.

This research highlights that engineered mice lacking the vitamin D receptor show multiple health issues similar to human vitamin D deficiency, underscoring the widespread impacts of the vitamin D endocrine system.

This review explores how adult skin epithelia preserve stem cell populations for hair follicle regeneration and wound healing, but reports no new experimental results.

Ets2 gene is crucial for placental development in mice.

This study found that fibroblast growth factor 9, initially secreted by γδ T cells, plays a key role in modulating hair follicle regeneration in mice after skin wounds.

This review discusses the role of signaling networks in sebaceous gland development and disorders, highlighting recent insights from mouse models and cell line studies, but reports no new experimental results.

This study found that skin-derived precursor cells in mice can originate from both neural crest and somite lineages but show functional similarities regardless of their developmental origins.

This review discusses the role of growth factors and cytokines in hair follicle development and cycling, but reports no new clinical findings on treatments for hair growth disorders.

This study found distinct gene expression profiles in alopecia areata-affected skin, suggesting T-cell mediated immune responses and unique gene profiles between different stages of the disease.

This review discusses the progress in tooth regeneration research and highlights the potential of spatial-temporal release of developmental factors, but it reports no new clinical findings.

In this study, growing human hair follicles in a defined glycosaminoglycan hydrogel ex vivo promoted cell survival, proliferation, and activation of hair growth-related signaling pathways, suggesting GAG-based hydrogels could modulate the hair follicle growth cycle.

This study observed that platelet-rich plasma samples from female patients show significant variability in growth factor secretion, which may influence the inconsistent clinical response in alopecia treatment.

In this study, researchers identified 32 differentially expressed genes involved in androgenetic alopecia, with down-regulated genes associated with Wnt and TGF-beta signaling and up-regulated genes linked to oxidative stress pathways.

This study observed a slight improvement in hair density in men with androgenetic alopecia treated with autologous platelet rich plasma, but only two cases showed cosmetic improvement.

In this research, the authors identify coordinated mechanical forces as crucial for hair follicle development in mammals, with contractile, proliferative, and proteolytic activities facilitating the formation and sectioning of epithelial structures crucial for forming a functional tissue.

This research re-analyzed single-cell gene expression data from a mouse model, confirming that certain genes involved in the EDA-EDAR and WNT pathways are crucial for skin appendage development, suggesting that their restoration may mitigate the effects of hypohidrotic ectodermal dysplasia in children.

In a laboratory setting, this study found that overexpression of the FGF5 short form in cultured keratinocytes increased hepatic growth factor gene expression, suggesting a potential role in hair growth.

This study found that Polycomb repressive complex 1 is crucial for skin development and stem cell specification, influencing gene activity beyond its known repressor functions.

In this study, researchers at the University of Pennsylvania found that increasing FGF9 levels in wounded mouse skin can lead to the growth of hair follicles.

This study found that vitamin D regulates cholesterol metabolism and may influence prostate cancer development through mechanisms affecting prostate cell growth and sex hormone metabolism.

In this study, feeding H-line chickens a diet with 1.0% tyrosine for 40 days significantly increased melanin deposition in feathers and revealed changes in gene expression related to melanin pathways, suggesting tyrosine's involvement in regulating feather color through the EDNRB2 regulatory network.

This study conducted a meta-analysis of gene expression data from alopecia areata patients, identifying 5109 differentially expressed genes and highlighting enriched pathways like JAK-STAT signaling, providing insights into the disease's pathogenesis and potential treatment targets.

This study found that MEIS2 expression in neural crest-derived cells is crucial for whisker and trigeminal nerve development in the mesenchyme, indicating an early role in epithelial placode formation and dermal condensation, independent of sensory innervation or Foxd1 expression.

This research describes a crucial role for Meis2 expression in mesenchymal cells derived from the neural crest for whisker formation, showing that whiskers can develop without sensory innervation or FOXD1 expression, highlighting an early function of MEIS2.

This study suggests that phloroglucinol may enhance anagen signaling and reduce oxidative stress-induced damage in human dermal papilla cells, offering a potential therapy for hair loss.

This study established the R-7 dermal papilla cell line, which retained essential characteristics of primary cells without undergoing malignant transformation, suggesting its potential for future hair research.

Acne is linked to inflammation and insulin resistance, and is associated with various syndromes that require different treatments.