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This review discusses the multiple factors contributing to skin aging, including cellular changes and environmental influences, and highlights its recognition as a disease with significant implications beyond cosmetic concerns, without reporting new research results.

This review discusses recent advances in understanding hair follicle stem cell dynamics and interactions, but it reports no new experimental findings.

In this study, N-WASP deficiency in mouse skin was found to cause severe alopecia and disrupt hair follicle cycling by 5 months, highlighting its critical role in skin function and Wnt signaling.

A rare skin growth was successfully removed without recurrence after one year.

This review examines the complex mechanisms that regulate skin stem cell development, activation, and differentiation, emphasizing the molecular signaling pathways that influence their fate and contribute to skin homeostasis.

This study indicates that reduced activity of the matriptase-prostasin proteolytic cascade is likely the cause of human autosomal recessive ichthyosis with hypotrichosis, as demonstrated using a novel mouse model.

This research suggests that defects in keratinocyte differentiation due to putrescine accumulation in SSAT transgenic mice lead to skin changes and hair loss, and reducing putrescine can promote hair regrowth.

This review summarizes existing knowledge on diffuse and patterned alopecia, emphasizing recent advancements in treatment beyond FDA-approved options, but it reports no new clinical findings.

This study found that the phenotype of Hedgehog/Gli-driven skin tumors in mice depends on the cell of origin, tissue context, and level of oncogenic signaling.

This review discusses the biology of hair follicles across various species and their role in fiber quality, but reports no new experimental findings.

This study demonstrated a close anatomical relationship between Merkel cells and Langerhans cells in human hair follicles, suggesting potential functional interactions in the bulge area.

This study found that recombinant human type XVII collagen (rhCOL17A1) promotes hair growth by activating the Wnt/β-catenin and SHH/GLI signaling pathways and increasing type XVII collagen expression, with significant effects observed in both cell and mouse models.

This review summarizes existing knowledge on androgenetic alopecia, including its epidemiology, pathophysiology, and management, but presents no new research findings.

This review article discusses recent updates on the skin manifestations associated with thyroid disease, emphasizing their role as early indicators of thyroid hormone dysregulation.

In this study, transgenic mice with Rank expression in hair follicles showed excessive lymph node growth, which could be normalized by neutralizing the overproduced RANKL, underscoring its role in immune system regulation.

This study discusses patterns of androgenetic alopecia in Indian men but reports no new clinical findings.

A 90-year-old woman's hand lesion was a rare, aggressive skin cancer treated successfully with surgery.

A 16-year-old girl's skin rash was likely caused by an infection and improved with topical steroids.

A 54-year-old man with painful skin blisters and fever was diagnosed with Sweet syndrome and successfully treated with corticosteroids.

Alopecia in animals can be hereditary, congenital, or acquired, with treatments and outcomes varying widely.

This study found that TPA was significantly more effective than mezerein in inducing dark basal keratinocytes in mouse skin, which may be important in early tumor promotion stages.

This study reports that melanocytes form a defined photoresponsive network in the skin that reads environmental light cycles and may influence the sleep-waking cycle similar to the pineal gland.

In this case report, researchers diagnosed a 12-year-old girl with a nevus sebaceus of Jadassohn, characterized by a yellowish-pink plaque on the scalp and a genetic variant, following previous misdiagnosis as alopecia areata.

The document concludes that permanent hair loss conditions are complex, require early specific treatments, and "secondary permanent alopecias" might be a more accurate term than "secondary cicatricial alopecia."

This article reviews various types of alopecia, their diagnostic features, and patterns, but presents no new clinical findings; the authors discuss multiple mechanisms and classification challenges.

The researchers reported that the antipsoriatic compounds 1,25-dihydroxy-vitamin D3 and calcipotriol thinned the living cell compartment in organotypic ORS cultures by accelerating the differentiation pathway rather than affecting proliferation.

This abstract explains that androgenetic alopecia, a common hair loss disorder influenced by genetics and hormones like dihydrotestosterone, has FDA-approved treatments including minoxidil, finasteride, and photolaser therapy, but its genetic basis and susceptibility to environmental factors remain complex.

The document concludes that various hair disorders have different treatments, including medication, surgery, and addressing underlying causes.

The researchers reported that disrupting the RPGRIP1L gene in mice impaired desmosome function, causing skin blistering, and their findings suggest that PKCβII inhibition could help treat pemphigus.

This report describes a rare case of cyclophosphamide-associated neutrophilic folliculitis, suggesting its inclusion in differential diagnoses for acneiform eruptions.