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This review highlights that exosome-based therapies show promise for hair regeneration by modulating signaling pathways and enhancing hair follicle regeneration; however, further clinical research is needed due to variability in methods and limited clinical studies.

This study analyzed proteomic changes in Jiangnan cashmere goats' secondary hair follicles and found that the PLIN2 gene significantly impacts hair follicle growth cycles by affecting dermal papilla cell proliferation, offering insights into breeding strategies to enhance cashmere yield.

This study found that two microRNAs, oar-miR-23b and oar-miR-133, inhibit the development of hair follicles in superfine wool sheep by targeting genes involved in key signaling pathways, suggesting their potential use as molecular markers for breeding fine wool sheep.

This study found that long noncoding RNA profiles in Wan strain Angora rabbits may help understand the molecular mechanisms regulating hair follicle density, potentially influencing wool fiber production.

This study found that ocu-miR-205 promotes changes in signaling pathways and shifts in hair follicle phases, affecting Rex rabbit hair density by increasing secondary follicles.

This study found that exogenous glutamic acid promoted hair growth and keratinocyte proliferation, indicating a potential new signaling pathway in the skin.

This study observed that CIP/KIP proteins play a significant role in regulating cell cycle arrest and differentiation in human hair follicles, supporting hair growth and formation in the anagen phase.

This article reviews the role of epithelial-mesenchymal interactions in hair follicle morphogenesis and the hair cycle, suggesting potential paths for developing treatments for hair growth disorders but providing no new clinical findings.

This study found that WWOX deficiency in mice leads to impaired skin development, reduced epidermal thickness, and significant hypothermia due to disrupted cell proliferation and homeostasis.

This study found that human umbilical cord mesenchymal stem cells (hUCMSCs) promoted hair regeneration in androgenetic alopecia model mice by activating Wnt/β-catenin signaling, enhancing hair follicle stem cell proliferation, and reducing dermal papilla cell apoptosis.

In this study, researchers found a significant association between the rs13405699 SNP at 2q31.1 and male pattern baldness among Han Chinese men, suggesting genetic influence on this condition in this population.

This study found that overexpression of the anti-apoptotic protein Bcl-2 in mice disrupted cell death during the hair cycle, impairing hair regeneration by delaying anagen entry and hair growth.

This study found that S-Methylmethionine sulfonium (SMMS) enhances cell survival and reduces damage from UVB irradiation in skin cells, suggesting its potential as a cosmetic ingredient for UV protection.

This study observed that exosomes from adipose-derived stem cells promoted hair growth by enhancing dermal papilla cell proliferation and activating signaling pathways, suggesting potential for treating immune-mediated alopecia.

In this study, researchers found that activating the delta opioid receptor with a specific agonist significantly promoted hair growth in mice, suggesting potential for developing new hair-loss treatments.

In this study, researchers developed a new human in vitro model for male androgenetic alopecia that replicates key features of the disorder, providing an effective platform for studying hair loss mechanisms and testing potential treatments.

In this study, researchers observed that patients with androgenetic alopecia show differences in scalp microbial communities compared to the general population, including an increase in Cutibacterium acnes, particularly in males, which may interact with lipid and immune pathways to contribute to hair follicle miniaturization.

This study showed that vitamin D receptor gene-deficient rats exhibit hair loss and skin abnormalities due to differences in gene and protein expression patterns, while ligand-independent VDR action is crucial for normal hair cycle maintenance and skin formation.

This review discusses how targeting apoptosis pathways in hair and skin cells can inform the development of novel therapies, but it reports no clinical findings.

This study found that the Notch signaling pathway is suppressed in basal cell carcinomas and highly expressed in hair follicles, suggesting it might be a target for treatment strategies.

This study concluded that the KNPs@M/G microneedle system offers a promising strategy for treating radiation-induced skin injury by promoting antioxidative, anti-inflammatory, and regenerative effects.

This study reported that human umbilical cord mesenchymal stem cell-derived exosomes may promote hair regeneration and thickness in androgenic alopecia by modulating cellular pathways in hair growth, including increasing hair density and diameter, as observed in a mouse model and an exploratory clinical trial.

Mycophenolic acid may help hair growth, a combination treatment improves hair thickness in male hair loss, and early treatment of frontal fibrosing alopecia is important.

This study found that CD44 and CD49d together enhance signaling pathways in lymphocytes in mice with alopecia areata, influencing their activation and function.

This review examines natural bioactive compounds for their potential to alleviate androgenetic alopecia, emphasizing compounds like ginseng and curcumin, but reports no new experimental results.

This study found that topical formononetin treatment promoted hair regrowth in mice by normalizing hair follicle size and inhibiting apoptosis-related pathways.

In this study, maternal melatonin implantation in pregnant rabbits reduced hair follicle cell apoptosis and increased hair follicle density in their neonatal offspring, suggesting a beneficial impact on hair follicle development mediated through specific molecular pathways.

In a testosterone-induced mouse model, this study found that exosomes from injectable Platelet-Rich Fibrin (i-PRF) significantly reduced inflammation, oxidative stress, and apoptosis, while enhancing hair regeneration, with the greatest improvements seen when combined with minoxidil, suggesting potential as a novel treatment for androgenetic alopecia.

This study reported that, in a laboratory setting, araliadiol derived from Centella asiatica activated antioxidant pathways, mitigating urban particulate matter-induced oxidative stress and skin damage.

In this study, topical application of Angelica sinensis extract on mice promoted hair regrowth by influencing key hair cycle pathways and reducing keratinocyte apoptosis during the catagen phase.