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This study found that loss of contact between the arrector pili muscle and the hair follicle bulge may explain why hair loss in male and female pattern baldness is largely irreversible, unlike in alopecia areata.

In this study, different donor and recipient site preparation techniques for melanocyte-keratinocyte suspension were associated with similar repigmentation outcomes in stable vitiligo, but efficacy varied by body site.

In this study, researchers demonstrated that follicular tight junctions in porcine skin form a barrier to nanoparticle penetration, particularly in upper regions, which supports its use as a model for human skin.

In this study, researchers reported that CD34 expression in the isthmic region of canine hair follicles suggests a potential stem cell compartment in this area.

This study indicates that the OVOL1-OVOL2 axis may play a significant role in hair follicle differentiation and growth, potentially serving as therapeutic targets for hair disorders like alopecia and in the tumorigenesis of pilomatricoma.

This study found that the fuzzy mutation in mice is linked to both structural hair defects and accelerated hair follicle cycling, influencing the regulation of hair cycle phases such as catagen and anagen.

This study suggests that PDGFA and BMP2 play a role in the hair follicle cycle in cashmere goats, with PDGFA particularly involved in activating the growth phase.

This article reviews the role of adult stem cells in tissue homeostasis and wound repair, focusing on their regulation within the murine hair follicle's specialized niche, but it presents no new findings.

This article explores potential mechanisms of acneiform skin eruptions linked to EGFR inhibition in cancer patients, focusing on EGFR's role in controlling IL-1-dependent inflammation at hair follicles, but reports no clinical results.

This study suggests that Mrp3 may play a role in both wound healing and the hair follicle cycle as a growth factor and/or angiogenesis factor.

This study observed that undifferentiated matrix cells at the base of the hair follicle differentiate into the medulla, cortex, cuticle, and inner root sheath cell types through specific morphological changes.

This study suggests that damaged anagen hair follicles have the capability to repair themselves and resume growth by mobilizing extra-bulge epithelial cells, particularly after injuries like chemotherapy and radiotherapy.

This study found that in bovine skin, leptin and its receptor are expressed in the epidermis and hair follicles, suggesting a role in epidermis growth and hair follicle cycling through paracrine and autocrine mechanisms.

This study reported no Cx30 expression in normal interfollicular human epidermis and minimal expression in some skin structures, with faint detection in porokeratosis of Mibelli patient skin.

This study observed that in vitro cocultures of hair follicle cells with dermal fibroblasts or hair papilla cells enhanced proliferation and differentiation of outer root sheath cells but did not mimic hair-type differentiation.

This study observed that lectin-binding patterns in skin appendage tumors reveal differences in sweat gland tumors compared to normal tissues, but pilosebaceous tumors maintained a similar lectin-binding pattern to their corresponding normal structures.

This case report details atrichia with papular lesions in a 4-year-old girl, highlighting specific histological findings on her scalp and other affected areas.

This study found that the PPAR-γ modulator N-acetyl-GED may enhance mitochondrial function in human hair follicles, particularly in outer root sheath keratinocytes.

This study found that keratinocyte stem/progenitor cell-conditioned medium significantly enhanced hair growth in mice and increased the proliferation of human hair follicle cells.

In this study, 7-phloroeckol, derived from marine brown algae, was found to promote hair growth by increasing cell proliferation and hair shaft elongation in cultured human hair follicles.

This report provides the first microscopic description of pachyonychia congenita-associated alopecia, identifying a combination of histological features that might be unique to this condition.

This study found that a histochemical stain using 4-dimethyl-aminocinnamaldehyde effectively distinguishes between plucked anagen and telogen hairs by causing the root ends of anagen hairs to develop a red color.

This study observed that the catagen phase in hairless mice displayed a slower shortening of the mutant epithelial column, resulting in longer total follicle length and abnormalities in the connective tissue sheath and glassy membrane.

This study found that keratoacanthoma of the lip likely arises from outer root sheath cells, based on the presence of specific keratin markers and periodic acid-Schiff staining patterns.

The study reports that the AVET system showed higher efficiency in transfecting cultured human keratinocytes compared to SuperFect and PrimeFector, with AVET reaching levels of enzyme activity similar to normal cells in keratinocytes from lamellar ichthyosis patients.

This study found that asebic mice exhibit abnormal sebaceous gland differentiation and insufficient sebum production due to defective regulation of cell processes, despite possessing normally developing sebaceous glands initially.

This exploratory study found that cannabidiol (CBD) at higher concentrations may inhibit hair growth by promoting the onset of catagen in human hair follicles, while lower concentrations showed potential anti-inflammatory effects without promoting catagen.

This study reported that Panax ginseng extract significantly inhibited DKK-1-induced catagen-like changes in human hair follicles by promoting cell proliferation and reducing apoptosis, suggesting it may help mitigate hair loss associated with DKK-1.

In this study, topical application of ginsenosides Rb₁ and Rd in mice increased cell proliferation in hair follicles, suggesting they may help prevent hair loss by promoting growth through p63 induction.

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