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This report presents a rare case of short anagen syndrome in a 38-year-old African American woman, expanding the documented demographic beyond previously reported Caucasian individuals with fine blond hair.

This study identified FP-1 as a highly specific extracellular matrix protein in follicular papilla cells, which may play a role in hair growth regulation during specific hair cycle phases.

This study found that circRNA-0100 promotes differentiation of secondary hair follicle stem cells into hair lineage in cashmere goats by sequestering miR-153-3p, which enhances KLF5 expression.

This study found that intradermal injection of cholesterol-modified siRNA targeting FGF5 or FGF18, or topical application of FGF18-targeted siRNA, effectively influenced hair follicle cycles in mice, suggesting potential benefits for alopecia management.

This study found that Sox10 may play a role in early hair follicle development and cycling, as it is expressed in specific regions of the hair follicle during different phases of the hair cycle in mice.

In this study, researchers found that the matriptase-HGF-c-MET pathway may be activated in proliferative cells of human hair follicles and sebaceous glands, suggesting a potential role in hair growth regulation.

This study found that the expressions of CDK inhibitors p21waf1/cip1 and p27kip1 were higher during the anagen phase compared to telogen, suggesting a role in follicular epithelial cell differentiation.

This study examined gene expression in cashmere goats and identified key pathways and molecular regulators that influence hair follicle growth stages and melatonin's role in promoting cashmere growth.

In this study, a subcutaneous injection of recombinant RSPO1 was found to activate hair follicle stem cells and enhance hair regeneration in mice by stimulating the Wnt/β-catenin signaling pathway, suggesting its potential as a treatment for hair loss.

This study reported that the pseudoceramide bis-oleamido isopropyl alcohol (BOI) promotes hair growth in ex vivo cultured human hair follicles, likely by enhancing sphingolipid synthesis in dermal papilla cells.

This study found that IPL hair reduction led to significant decreases in hair count and thickness by promoting hair follicle miniaturization, increased telogen phase, and reduced cell proliferation.

This study found that human mesenchymal stem cells overexpressing JAM-A improved hair follicle structure and hair formation in mice by reducing abnormalities such as curved and zigzagged follicles.

Using 5% topical minoxidil improved and normalized the hair growth in a girl with short anagen hair naevus.

This study suggests that label-retaining cells in the hair follicle contribute to follicular renewal, indicating a specific role in the hair cycle by proliferating during the late telogen phase.

This review assessed experimental studies on herbs used for alopecia, identifying potential mechanisms involving hair cycle management and keratinocyte processes, but highlighted a need for improved evidence on quality control and toxicity of these herbal treatments.

This chapter reviews treatments for alopecia areata and androgenetic alopecia but presents no new clinical findings, emphasizing the need for more effective and safe hair growth promoters.

This study concluded that qiviut cortisol can be used as a measure of HPA axis activity in muskoxen, with hair growth phase and body region affecting cortisol levels.

This study found that lncRNA-599547 positively regulates the expression of the Wnt10b gene by interacting with miR-15b-5p, enhancing the inductive property of dermal papilla cells in cashmere goats.

This study identified differentially expressed miRNAs between the telogen and anagen phases of hair growth in Wan Strain Angora rabbits, contributing to understanding miRNA-mediated regulation of rabbit hair follicle cycling.

This study found that PGA-4HGF nanoparticles enhanced hair growth in mice more effectively than 4HGF alone by increasing anagen phase duration and dermal papilla cell proliferation.

TR3 is mainly found in hair follicle stem cells and may be involved in hair loss.

In this randomized, placebo-controlled study, the tested cosmetic ingredient containing Trifolium pratense flower extract and a biomimetic peptide increased anagen hair and improved the anagen/telogen ratio over four months in individuals with recessing hair.

In this study using C57BL/6N mice, the researchers found that skin thickness, mast cell counts, and immunoreactive density of certain cytokines increased at various stages of hair follicle growth following depilation.

The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.

This study found that a dissolvable microneedle device delivering rapamycin and epigallocatechin gallate nanoparticles significantly enhanced hair regrowth in C57BL/6 mice within 7 days, demonstrating increased hair shaft growth and follicle density with minimal inflammation compared to untreated mice.

This study suggests that CGE may enhance hair growth by activating β-catenin signaling pathways in human hair dermal papilla cells and promoting the anagen growth phase in mice.

This study found that lncRNA-599554 contributes to the inductive ability of dermal papilla cells in cashmere goats by sponging miR-15a-5p, promoting Wnt3a expression, and potentially influencing hair follicle regeneration.

This study suggests that Sox13, although dispensable for epidermal development, serves as a marker for early hair follicle development in Sox13-LacZ knock-in mice.

This study found that insect wax can significantly promote hair growth in mice in a way that is comparable to minoxidil, likely due to the upregulation of VEGF expression.

This study found that transthyretin and megalin expression in human scalp hair follicles varies significantly with the hair growth cycle, peaking during anagen and diminishing in catagen and telogen phases.