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This review discusses micro-segmental hair analysis for forensic toxicology, emphasizing its potential to provide detailed drug distribution profiles and its application in investigations, while noting the method's limitations and future perspectives.

This study found that altering neonatal neurosteroid levels affected anxiety and aversive learning in adult rats, possibly through changes in hippocampal GABAergic functions.

This study found that testosterone treatment in older hypogonadal men caused minor improvements in depressive symptoms and visuospatial memory, but overall, major cognitive benefits were not observed.

This research investigated aqueous alginate-based hydrogels for delivering minoxidil and reported that using hydroxypropyl-β-cyclodextrin (HP-β-CD) with molar substitution 0.65 significantly enhanced minoxidil's solubility and skin permeability without damaging the epidermis, suggesting potential as an alternative to commercial minoxidil solutions.

This study introduces a new multimodal imaging technology to visualize and quantify cell dynamics in natural skin over long durations, demonstrated in GFP bone marrow-transplanted mice, to study dynamic skin regeneration.

This study suggests that ovarian cycle-related progesterone and neurosteroids regulate α2-subunit expression of GABA-A receptors in the hippocampus through a pathway independent of progesterone receptors, potentially affecting brain conditions linked to the menstrual cycle.

In this study, Wnt4 was identified as a key factor in cardiac repair, where its regulation in cardiac fibroblasts improved cardiac function and revascularization following ischemic reperfusion injury.

This study used single-cell RNA sequencing to map the cellular composition of sheep hair follicles, revealing differentiation pathways and potential molecular mechanisms for wool curvature, which may inform sheep breeding.

In this study, researchers developed a new photoactivatable Cre recombinase mouse model, DiLiCre, which allows precise light-induced genetic modifications and cell tracing, demonstrating its effectiveness for advancing biological and biomedical research.

This review explores the various genetic, hormonal, environmental, and nutritional factors proposed to explain the historically shorter stature of Sardinians, while reporting no new empirical findings.

In this study, XMU-MP-1 unexpectedly reduced cell proliferation and altered cell cycle progression in a model human hair follicle, possibly due to off-target kinase inhibition.

This study found that Follicular Maps, derived from trichoscopic images, remained consistent over time and unaffected by hair cycling or noncicatricial alopecia, offering a precise tool for diagnosing and monitoring hair and scalp conditions.

This review highlights that the RNA modification N⁶-methyladenosine (m⁶A) plays a crucial role in regulating wound healing and tissue remodeling, with dysregulation contributing to complications in chronic wounds, such as diabetic ulcers and burn injuries, through mechanisms like impaired angiogenesis and increased oxidative stress.

This study found that hair shaft exit angles in patients undergoing strip hair restoration increased after the tumescence injection and further increased after strip excision.

This study identified two new Wnt genes, EsWnt1 and EsWnt4, in red starfish, with their expression patterns suggesting a role in wound healing and regeneration.

This study observed that, in mouse ear epidermal stem cells, a cell-autonomous size control mechanism involving the RB pathway dictates S phase entry timing based on cell size, despite external environmental variations affecting growth rates.

This review examines the origins and mechanisms of tumor initiation in common skin cancers, but does not present new experimental findings; it emphasizes the need for further research on cancer stem cells.

This study found that patients with androgenetic alopecia had increased scalp microbial diversity and reduced Staphylococcus abundance, particularly in the frontal and vertex regions, suggesting this dysbiosis as a sensitive indicator of AGA.

This study identified a group of dermal fibroblasts near hair follicle stem cells in mice that facilitate hair regeneration by creating a biomechanically compliant extracellular matrix, enhancing stem cell activation and promoting a positive feedback loop for tissue regeneration.

In this study, DOP treatment improved hair regrowth in androgenetic alopecia by altering local steroid metabolism and follicular morphology.

This review discusses recent advancements in hair follicle organoid technology for alopecia treatment but presents no new experimental results, emphasizing the potential for clinical applications and drug screening.

This study investigated neonatal mortality and health threats to Guadalupe fur seals in Mexico's San Benito Archipelago, finding a 29.52% mortality rate largely due to trauma and emaciation/infectious disease, with high rates of alopecia syndrome and entanglement linked to marine debris, primarily from local sources.

This study developed a novel regenerative platform using nanozyme-enabled materials combined with exosomes and laser stimulation to enhance wound healing in a mouse model, which more effectively regulated reactive oxygen species and improved early angiogenesis and collagen organization compared to conventional methods.

In this study, researchers developed a mathematical model of outer hair cell hair bundles that replicates experimental responses to mechanical stimuli, providing insights into the stimulus-dependent adaptation mechanisms and the functional significance of their three-row stereocilia configuration in mammalian hearing.

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 study utilized polarized light microscopy to examine hair shafts in ten children with rare genetic disorders, such as Netherton syndrome and ectodermal dysplasia, providing valuable diagnostic insights into hair thickness, composition, and structural irregularities associated with these conditions.

In this study, researchers examined androgen receptor activity in the adult mouse brain and found specific expression in key brain areas, which could inform understanding of cognitive side effects in humans undergoing androgen deprivation therapy for prostate cancer.

In a keratinocyte-specific knockout mouse model, this study found that deleting GRK2 disrupted hair follicle homeostasis, causing cyst-like structures, abnormal growth patterns, and eventual hair loss, suggesting potential links to immune-mediated alopecias.

This study systematically reviewed meta-analyses and Mendelian randomization studies to identify factors influencing prostate cancer risk, finding suggestive associations for physical activity, height, and smoking but no robust, convincing overlapping evidence across tested factors.

In this study, researchers developed a mathematical model to explore how immune system dynamics affect hair follicle behavior in alopecia areata, identifying key parameters influencing disease progression and suggesting potential treatment strategies targeting immune dysregulation.