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In this study, using stirred-suspension bioreactors to expand dermal stem cells resulted in larger numbers, but had reduced efficiency in forming hair follicle structures compared to static culture conditions.

This study argues that the reported "toughening" transition in keratin is a misinterpretation, actually representing the evaporation peak of residual water in the fibers.

The document describes a method for preparing hair for microscopy by embedding it in plastic, cutting it, and storing it cold before imaging.

This study demonstrated that stress inhibited hair growth in mice, likely through substance P-dependent activation of immune cells, highlighting a brain-hair follicle connection.

In this study, a novel electrospun dressing patch made with radially oriented PHBV nanofibers and loaded with berberine was shown to significantly accelerate diabetic wound healing in mice, achieving 100% wound closure in 18 days while also demonstrating improved mechanical and anti-inflammatory properties.

This study reviews the potential of electrospun nanofiber mats as innovative drug delivery systems for wound healing, emphasizing their ability to enhance drug release, improve cell adhesion, and promote tissue regeneration by incorporating antibiotics, growth hormones, or stem cells.

This study found that specific genetic variations in the IRF2BP2 gene influence fleece structure in sheep, with one variant completely determining coat type and another significantly modifying fiber characteristics, providing valuable insights for improving fleece quality through selective breeding.

This study observed light flashes and repulsion effects in a single-slide preparation of human hair with a special solution, suggesting potential electromagnetic field emissions from the hair.

This paper presents an RGB video microscopic system to monitor optical properties of hair shafts and follicles in vitro, but reports no new clinical results.

This study found that in Merino-Southdown cross sheep, the presence of the C variant of the KRTAP26-1 gene was associated with higher wool quality, including increased wool yield and staple length.

This study found that the observed isotropic ss-ECD spectrum of finasteride is influenced by the anisotropy of locally oriented crystals, offering new possibilities for analyzing solid-state chiral materials.

This study found that recombinant human hair keratin proteins K31 and K81 show greater potential for inducing skin cell differentiation compared to natural keratin coatings.

In this study, the researchers found that depleting natural polyamines or manipulating translation rates can enhance the stemness of hair follicle stem cells, while N1-acetylspermidine increases proliferation without affecting translation.

The researchers reported that in Arabidopsis collet hairs, nuclear positioning near the cell tip is not essential for hair growth, although it correlates with growth dynamics.

In this study of Zhexi Angora rabbits, researchers found that the fine-wool group exhibited lower fiber diameters and a higher hair follicle density than the coarse-wool group, and they identified key candidate genes potentially regulating wool quality through RNA-seq and genome resequencing techniques.

This study developed a model showing that keratin elasticity in skin may be influenced by electrostatic and bridging interactions between keratin filaments, contingent on the balance of charges in the surrounding medium.

In this study, nucleotide sequence variation in the KRTAP13-3 gene was associated with changes in heterotypic hair fibre diameter variation in Chinese Tan sheep.

This study analyzed the genetic variations of the KAP20-1 gene in Chinese Tan sheep lambs and found that the G variant was linked to an increased mean fibre curvature in their fine wool fibres, potentially influencing breeding strategies for this wool trait.

This study observed that hair follicle mesenchyme in mice exhibits significant plasticity during the hair cycle, with cell migration and changes in papilla size impacting hair production.

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 review evaluates health claims regarding spermidine's contribution to normal hair growth and finds no evidence to support a cause-and-effect relationship.

In this study, researchers developed a multilayered gel bead culture model using a microgel-spotting device, successfully mimicking the early development of skin appendages and supporting in vitro hair follicle regeneration with structures resembling native hair follicles.

This study achieved regeneration of hair follicle-like structures and erector muscle of hair in vitro by simulating cellular organization and applying mechanical stimuli.

This study suggested that electron spin resonance techniques can potentially measure gamma ray exposure in human hair samples, though variability and time sensitivity pose challenges for accurate dose estimation.

This review reports an increasing trend in sperm DNA fragmentation research over the past 20 years, with a focus on lifestyle, asthenozoospermia, and varicocele, and highlights the TUNEL technique as widely used.

This study found that human hair fibers significantly improve the shear behavior of dry sand, but under saturated conditions, the reinforcement sustains shear strength similar to unreinforced sand.

This study used quantitative methods to identify new geometric and mechanical parameters of curly and kinky/coily hair, aiming to improve classification and develop better personal care products for these hair types.

This study found that 3-aminopropyltriethoxysilane penetrates hair fibers and improves the mechanical resistance of dry hair, addressing the needs for increased body in fine hair.

This study concluded that the optimum biotin microemulsion hair tonic composition involves span 80 (20%), tween 80 (9.47%), and PEG 400 (5%), providing favorable viscosity and globule size.

This chapter reviews the clinical and morphological diagnostic features of various hair dysplasias, including atypical pili torti, pseudomonilethrix, and trichothiodystrophy, and reports no new results.