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In this study, researchers found that neonate hairs have a distinct microstructure with no medulla and smaller hair follicles compared to adult hairs.

This study found that Tcf3 and Lef1 differently regulate cell differentiation in multipotent skin stem cells, with Tcf3 promoting follicle-like features and Lef1, when modified, promoting sebocyte differentiation.

This study found that keratin 19, unlike keratin 14, forms less stable filaments with keratin 5, suggesting distinct assembly properties and potential unique roles in skin basal cells.

In this study, the researchers reported that a newly developed PYGL inhibitor, HTPI, enhanced hair growth in an ex-vivo culture by reducing oxidative damage in hDPCs and inhibiting glycogen degradation in hORSCs, showing potential as a treatment for hair loss comparable to minoxidil.

This study demonstrated that using a mass spectrometry imaging technique, researchers were able to visualize the incorporation of argan, avocado, and coconut oils into hair fibers, suggesting their potential in cosmetic and alopecia treatments by confirming oil absorption and fiber modification.

This study found that prostaglandin D2 reduced proliferation in bulge resident K15+ stem cells but not in other K15+ progenitor cells, suggesting differential impacts on hair follicle stem cell niches.

This study demonstrated that autologous mesenchymal stem cells from hair follicles, when combined with a novel gelatin-based hydrogel, showed promising osteogenic potential and could offer a non-invasive alternative for bone regeneration.

This report describes a case where a woman with frontal fibrosing alopecia initially presented with symptoms resembling rosacea, but further investigation led to a diagnosis of FFA, resulting in a treatment change to oral finasteride and hydroxychloroquine.

Keratin 17 is important for hair and nail structure and affects pachyonychia congenita symptoms.

In this review, the authors discuss caffeine's potential mechanisms and benefits as a hair loss treatment, noting its possible effectiveness and safety, though they caution that existing studies often have significant design flaws.

This study investigated the effects of wool-derived hydrolysed keratin peptides on relaxed textured hair and found that mid- and high-molecular weight peptides improved mechanical strength and reduced breakage in different humidity conditions.

This study found that high levels of human cytokeratin 16 expression in transgenic mice lead to skin lesions and altered keratinocyte structure, suggesting potential implications for human skin disorders and wound healing.

This pilot study suggests that lovastatin may counteract stress-induced MICA expression in hair follicles and enhance MICA shedding, potentially offering a complementary approach for alopecia areata treatment.

This study found that metformin, an AMPK activator, promoted hair growth in vitro by enhancing the AMPK/β-catenin signaling pathway in dermal papilla and outer root sheath cells.

This study demonstrated that multipotent stem cells in adult mice whisker follicles migrate to produce whisker growth, and that this process requires precise control of stem cell trafficking.

More research is needed to understand how hair keratins work and their role in hair disorders.

In this study, the researchers identified the specific subcellular localization of the protein S100A3 in the endocuticle and cortex of human hair shafts.

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 the orphan protein Plet-1 is expressed in specific keratinocytes of mouse hair follicles and may regulate keratinocyte interactions with inert tissues by affecting migration and adhesion.

This study found that the twisted hair shafts characteristic of pili torti may result from uneven outer root sheath cell development, leading to irregular hair shaft modeling and twisting.

This study describes the presence of holes in hair fibers, absent in hair follicles, likely forming from daily care actions and removal of extractable substances.

In this study, LHX2 and SOX9 were found to mark distinct epithelial progenitor cell populations within human hair follicles, suggesting roles in maintaining the hair follicle epithelium.

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 human embryonic and induced pluripotent stem cells differentiated into specific bulge stem cells and successfully formed new hair follicles when transplanted with mouse dermal cells in immunodeficient mice.

This study found that Keratin 26 is expressed differently in hair follicle phases, particularly during catagen and telogen, influencing cashmere growth and interacting antagonistically with the BMP signaling pathway.

This study cataloged human type II hair keratins, detailing their expression and differentiation roles in hair follicles and comparing them with type I keratins to explore keratin-pairing principles.

Apoptosis in hair follicles varies by growth phase, with TGF-β possibly starting the catagen phase.

This review discusses various types of hair dyes, their mechanisms of action, molecular structures, application methods, and formulation aspects, but reports no new research findings.

This study found that the zinc transporter ZIP10 is crucial for epidermal development, as it influences the activity of p63, promoting epidermal morphogenesis.

This study found that overexpression of sPLA2-X in mice was associated with alopecia and hair follicle abnormalities, highlighting its potential role in hair follicle homeostasis.