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This case report describes a one-year-old boy with combined occipito-linear and triangular fronto-temporo-parietal alopecia and discusses the possibility of these lesions being a variant of neonatal occipital alopecia.

This study found that among various predictive models for baldness risk, Random Forest Regression performed best with the lowest mean squared error and highest R², indicating strong predictive accuracy, especially with complex datasets, while Linear Regression was better suited to simpler datasets.

This study developed a method using ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MRM-IDA-EPI) for the rapid and sensitive detection of 13 JAK inhibitors in anti-alopecia cosmetics, showing excellent separation and accurate quantification with high recovery rates in tested matrices.

Using synchrotron X-ray imaging, this study mapped the complex innervation of male rat vibrissa follicles, revealing distinct types of myelinated afferent neurons and patterns of axonal organization that may inform sensory processing in the brainstem.

This review discusses the widespread appeal and misconceptions associated with follicular unit excision in hair restoration surgery and reports no new clinical results; it highlights the technique's challenges and necessity for skilled execution.

This study reports a case of complete hair regrowth in lichen planopilaris after 12 weeks of treatment with ixekizumab, suggesting its potential as a targeted therapy.

This study found that follicular unit extraction is effective for treating scar alopecia after craniotomy, with better outcomes achieved when 1-year postoperative hair density exceeds 20 follicles per cm².

Nonlinear artificial neural networks are better at identifying different types of animal hair than linear ones.

This study found that skin fibroblasts in mice arise from two distinct lineages which contribute differently to dermal structure and repair, impacting hair follicle formation during wound healing.

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.

Basal cell carcinoma mostly starts from cells in the upper skin layers, not hair follicle stem cells.

This study investigated dermal fibroblasts in mouse skin using single-cell RNA sequencing and identified signaling pathways that influence adipogenesis, finding that IL-1-NF-κB promotes, while WNT-β-catenin inhibits, the adipogenic potential of these cells, with implications for wound healing and scar formation.

This review examines the evolving understanding of lymphatic vessel development, emphasizing new cellular mechanisms and lineage diversity, while discussing experimental methods and identifying key knowledge gaps.

This study used single-cell RNA sequencing to create a detailed atlas of human scalp hair follicles and found that early-stage hair graying involves matrix hair progenitor depletion linked to P53 pathway activation.

This review discusses the molecular mechanisms driving hair follicle degeneration in skin aging and emphasizes the role of the tissue microenvironment on stem cell function, but reports no new research findings.

This review highlights recent advances in CRISPR-based lineage tracing methods that can improve our understanding of skin stem cell behavior, regeneration, and disease, with potential applications in organoids and model organisms.

This study found that ablation of Tet2/Tet3 genes in skin epithelial cells altered hair shape and length, leading to hair loss, by affecting chromatin accessibility and gene expression related to hair follicle regulation.

In this study, researchers found that skin pigmentation alterations in a mouse model of Carney complex may be caused by specific dermal fibroblasts promoting melanogenic signaling.

This study found that fibroblast loss in the upper dermis from UVR exposure is linked to a deregulated inflammatory response, with T cells playing a protective role in fibroblast survival.

This chapter reviews the biology and regulatory mechanisms of epidermal stem cells, emphasizing their heterogeneity and roles in skin homeostasis, cancer, and aging, without reporting new findings.

This study found that m6A-circHECA enhances the differentiation of stem cells into hair follicle lineages in cashmere goats by sequestering miR-449a-5p, boosting LEF1 gene expression, and activating the Wnt/β-catenin pathway.

In this study, the ablation of Tet2/Tet3 genes in mouse skin epithelial cells led to altered hair shape and length, highlighting their role in regulating hair follicle gene expression and chromatin structure.

This study suggests that typical skin lesions in Carney complex may originate from the pro-melanogenic activity of a specific dermal fibroblast population influenced by PKA signaling.

This study found that fibroblasts play a crucial role in scar formation during dermal development and identified N-Cadherin as a key molecule in their response, suggesting new therapeutic avenues for scar prevention.

In this study, researchers found that the average measurements of the frontal hairline in Colombian women differ significantly from those reported in the United States and Spain, suggesting the need for using local measurements in surgical reconstruction.

This review discusses the role of oestrogens in stimulating growth hormone secretion and influencing linear bone growth in children, and reports no new clinical results; the authors suggest that oestrogens play a key role in pubertal growth spurts for both genders.

This study suggests that mouse lineage specification during pre-implantation development involves distinct timing and mechanisms for trophectoderm and inner cell mass differentiation, challenging existing models.

This case report describes the first instance of classical lichen planopilaris with atrophic lichenoid plaques developing in a Blaschko-linear pattern due to imatinib treatment in a patient with chronic myeloid leukemia.