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This study found that as hair loss severity increased in women with female pattern hair loss, the number of vellus follicles also rose, indicating miniaturization of terminal hair follicles.

This study found that immunohistochemistry for calretinin may identify certain cutaneous adnexal tumors with follicular differentiation towards cells of the outer root sheath.

This study found no evidence of increased keratinocyte proliferation in acne vulgaris, suggesting that other mechanisms may be responsible for hyperkeratinization in acne pathogenesis.

This case report describes a rare instance of trichogerminoma with unusually numerous mitotic figures and a higher Ki67 proliferative rate, distinguishing it from previously documented cases.

This study found that a curcumin-labeled particle-associated antiseptic penetrated deeper into hair follicles in porcine skin than particles without antiseptic.

This review discusses melanocyte stem cells in hair follicles and their potential role in cell-based therapy for vitiligo, reporting no new experimental results.

Targeting immune pathways like JAK/STAT may help treat frontal fibrosing alopecia.

Stem cells preservation in AGA could be a potential therapy, but more cases needed.

Hair diameter diversity could improve androgenetic alopecia assessment and treatment planning.

This study found that ATM protein plays a crucial role in protecting human hair follicle melanocytes from oxidative stress, which is linked to the greying of hair.

In this study, β-catenin overexpression in human hair outer root sheath cells increased the expression of Pitx2, which activated the follicular differentiation pathway, suggesting Pitx2's potential role as a modulator in hair growth control.

This study revealed that during fetal development, MITF and Mart-1 expressing melanocytes progress from the dermis to the epidermis and hair follicles, with MITF possibly marking follicular stem cells.

A man developed a skin reaction from metronidazole, which improved after stopping the drug and starting steroids.

This study found that C. japonicum flower extract significantly increased melanin content and cellular activity in human melanocytes and may improve follicular depigmentation and vitiligo through cAMP signaling.

In this study, researchers observed that Melan A, a melanocytic marker, was significantly expressed in hair follicles of alopecia areata patients and correlated with immune infiltrates, suggesting melanocytes might contribute to the autoimmune response in this condition.

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 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 demonstrates the use of microscopy-guided laser ablation to create a highly structured 3D hydrogel-based organotypic skin model with folliculoid structures, potentially useful for studying hair follicle development or bioactive substance screening.

The study suggests that immune privilege collapse in bulge cells and the involvement of pro-inflammatory cytokine interferon-γ contribute to hair follicle stem cell loss in lichen planopilaris.

This research observed that nanocarrier formulations of minoxidil improve follicular targeting and hair-growth outcomes in experimental settings, but their clinical efficacy and safety for treating androgenetic alopecia in patients remain unverified, necessitating further randomized clinical trials.

In this study, researchers developed a biomacromolecular hydrogel to deliver plant-derived extracellular vesicles for treating androgenetic alopecia in a mouse model, which significantly improved hair regrowth and follicle density by activating Wnt/β-catenin signaling.

This review suggests a shift toward genetically informed treatments for male pattern hair loss by integrating genetic insights and pharmacogenetic markers into therapeutic decision-making.

This study found that Pinus massoniana needles extract may promote hair regrowth in a mouse model of androgenetic alopecia, potentially by reducing oxidative stress and affecting immune, metabolic, and apoptosis-related pathways.

This review discusses recent advancements in dermatopathology, including molecular biology techniques and diagnostic innovations, and reports no new experimental findings.

This study found that among women with frontal fibrosing alopecia, 100% showed dermoscopic elements suggestive of the condition, with perifollicular erythema often indicating disease activity.

This study found that costunolide promotes hair growth in both lab-cultured human hair follicle cells and in live mice by modulating growth factor pathways.

This study found that a blackcurrant extract with phytoestrogen activity increased hair number and stem cell marker expression in a menopausal rat model, suggesting a potential benefit for hair loss.

This study introduced a bioengineering platform that creates early-stage hair peg-like structures within tissue-engineered skin substitutes by integrating human keratinocytes and dermal papilla cells with laser-micropatterned collagen scaffolds, providing a foundation for future appendage-inclusive skin regeneration efforts.

In this study, trichoscopic examination revealed that variations in hair diameter were more common in certain types of alopecia affecting the frontal scalp, suggesting the importance of evaluating the entire scalp for accurate diagnoses, although limitations include a single center design and small sample size.

This study found that exosomes derived from mesenchymal stem cells primed with rapamycin significantly enhanced hair regrowth, hair density, and hair follicle development in depilation-induced mice compared to controls, suggesting a potential therapeutic approach for hair loss.