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This article reviews acne keloidalis in young black men, describes its clinical and histopathological characteristics, and highlights surgical therapy approaches despite the uncertain etiology of the condition.

This study found that acne lesion formation involves early hyperkeratinization and inflammation around hair follicles, creating a self-sustaining cycle that may progressively worsen acne.

This study found that using an electrical microneedling device enhanced the penetration of liposomal melanin-fluorescein into hair structures and widened the follicular infundibulum in ex vivo human skin models.

Early stage bald spots are linked to skin inflammation and damage to the upper part of the hair follicle.

This perspective discusses Villani et al.'s findings on the role of the IGF regulatory protein Igfbp2 in basal cell carcinogenesis and highlights potential therapeutic and preventive targets, while raising questions about the cell of origin.

This study identified distinct human and bacterial protein profiles in sebaceous follicular casts, with acne samples showing proteins linked to inflammation and normal samples showing proteins involved in stress protection.

In this study, four dogs with a novel skin disease showed clinical lesions involving verrucous, crusted papules and plaques, and responded variably to immunosuppressive therapy, suggesting an immune-mediated cause.

This article discusses the potential for targeted therapies in hair loss by exploring inflammatory and cytokine-mediated processes, but it presents no new clinical results.

This study measured the lengths and depths of different portions of occipital scalp hair follicles and suggested cutting below 1 mm for hair regeneration procedures to avoid damaging the bulge zone.

The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.

This study found that a newly identified mutation in the hairless gene in mice led to decreased Hr mRNA levels and changes in gene expression related to hair follicle development.

This study describes a system for generating hair follicles from dissociated cells in mice, suggesting that successful development requires a foundational epithelial platform.

This review discusses recent advancements in understanding hair follicles, their disorders, and potential therapeutic opportunities, but it reports no new clinical findings.

This study found decreased hair density and altered follicular architecture in the balding frontal scalp of patients with androgenic alopecia, with increased vellus hairs noted.

The document explains how hair follicles develop, their structure, and how they grow.

In this study, CD4+ non-haematopoietic, skin-resident stem cell-like populations were identified in both murine and human epidermis, suggesting they may serve as potential basal cell carcinoma precursors.

This review explores the hair follicle microbiome's interaction with the immune system, discussing its potential clinical implications for scalp health and disease but reports no new clinical results.

This study found that specific histologic features in skin biopsies can help support a diagnosis of traumatic alopecia (trichotillomania), but not all markers are distinct to the condition.

This paper reviews hidradenitis suppurativa, comparing its clinical and histopathological characteristics to acne, questioning the proposed link to terminal hair follicles, and reports no new results.

This study found that applying controlled hypobaric stress to the skin significantly improved the in vitro and in vivo penetration of macromolecules, facilitating enhanced drug delivery.

This report diagnosed a 68-year-old man with comedonal folliculotropic mycosis fungoides based on clinical and histopathological findings, and found pegylated interferon alpha-2a with isotretinoin beneficial in reducing skin lesions.

Targeting drugs to hair follicles can treat skin conditions, but reaching deep follicle areas is hard and needs more research.

Liposomes with certain properties can effectively deliver drugs deep into hair follicles.

This study found that acne inversa is primarily an epithelial-driven disease, with cyst-forming tendrils causing inflammation due to rupture and the release of debris, highlighting limitations of punch biopsies for analysis.

This review discusses the diagnosis of alopecia in psoriasis, highlighting different hair loss types and the need to distinguish it from similar conditions, but reports no new clinical results.

This review describes recent advances in using nanoparticles for drug delivery to hair follicles, with potential applications in treating skin diseases such as alopecia and acne, but reports no new findings.

This case report describes a 27-year-old woman with lupus erythematosus whose biopsy findings indicated that lupus panniculitis can mimic alopecia areata, leading to temporary hair loss.

This study concluded that polymeric nanoparticles effectively targeted hair follicles for drug delivery, but the organogel formulation did not enhance their penetration into the hair shaft.

This article reviews the use of the Nd:YAG laser for hair removal and reports no new research findings.

The researchers reported that topical tofacitinib in mice increased hair follicles in the growth phase and boosted noggin and BMP4 mRNA expressions, compared to a vehicle and minoxidil.