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This review discusses the potential role of oxidative stress in hair graying and age-related alopecia, emphasizing the need for new strategies to counteract these effects, but reports no new results.

This review compiles epidemiological data on actinic keratoses and suggests promoting strategies like early diagnosis and photoprotection to prevent progression to skin cancer, but it reports no new clinical findings.

This paper reviews keratoacanthoma as a tumor that resembles but rarely progresses to squamous cell carcinoma, detailing its stages, potential origins, and distinguishing features from other similar growths, without reporting new clinical results.

This study found that human skin expresses proenkephalin, whose expression is upregulated by environmental stress and varies in pathological conditions, increasing in psoriasis and decreasing in melanocytic tumors.

In this study, ultraviolet irradiation and immersion in shampoo and hot water significantly reduced hair cortisol, illustrating a two-stage process of cortisol loss that may impact chronic stress assessment.

This review discusses the use of acitretin, a retinoid approved since 1997, for various forms of psoriasis and its potential benefits in combination therapy, but reports no new clinical findings.

This study found that PKCα activation in transgenic mice induces keratinocyte apoptosis and mediates neutrophilic skin inflammation via different pathways, suggesting potential mechanisms for cutaneous inflammatory diseases.

This study suggests that the structure and function of mouse melanocytes in the epidermis and hair bulb are influenced by genetic factors and local tissue environment, including hormones and growth factors.

This study observed that phototherapy is an effective and well-tolerated treatment for childhood dermatoses, particularly for psoriasis and pityriasis lichenoides chronica.

This study observed that topical PUVA treatment led to excellent or good hair regrowth in 45.4% of patients with alopecia areata, though many experienced relapse after treatment stopped.

This review suggests that androgenetic alopecia may be exacerbated by exposure to ultraviolet radiation and proposes considering it as a photoaggravated condition requiring photoprotection.

This review discusses the basic biology of apoptosis and its relevance to skin diseases, without presenting new research findings.

This study found that deleting β-catenin in epidermis-specific VDR knockout mice did not prevent UVB-induced skin tumors, indicating β-catenin does not compensate for VDR's role in tumor suppression.

In this case report, a patient with subacute cutaneous lupus erythematosus and exfoliative erythroderma achieved complete remission with systemic corticosteroids and long-term hydroxychloroquine.

This article reviews the process of repigmentation in vitiligo and emphasizes the role of UV light as the most potent stimulus, with no new clinical findings reported.

This review describes the types of skin lesions associated with systemic lupus erythematosus, discussing their histopathological features, serologic associations, pathogenesis, and prognostic implications.

This report describes a case where solar-induced postinflammatory hyperpigmentation following laser hair removal was treated with a combination of topical treatments and serial TCA peels, resulting in only slight improvement.

This review discusses physiological skin changes and specific dermatoses in pregnancy but reports no new clinical results, emphasizing careful diagnosis and management due to potential fetal risks in rare cases.

This review discusses the mechanisms by which sunlight exposure aggravates hair aging and highlights the role of hair pigments in providing photochemical protection, reporting no new results.

This review discusses how the optical properties of human hair might contribute to melanoma development but reports no new experimental findings, suggesting further research is needed to support this hypothesis.

This review discusses the potential and limitations of adipose-derived stem cells and their conditioned medium for hair regeneration, highlighting novel preconditioning methods to enhance their effectiveness, without presenting new clinical results.

This study reported that ultraviolet light treatment from a Kromayer lamp stimulated hair growth in four out of six patients with alopecia, whereas intralesional triamcinolone acetonide had a mixed effect.

This review discusses the effects of pregnancy on melanocytic nevi and reports no new clinical results; it suggests that changing nevi during pregnancy should be evaluated similarly to those in nonpregnant patients.

This review discusses new research on the role of retinoids in skin and hair health and reports no clinical results.

This study found that photoexposure significantly increased the gene expression of altered elastin, MMP12, and LOX, as well as the protein expression of tropoelastin and fibrillin-1, in skin models.

In this report, a 26-year-old man with folliculitis decalvans unresponsive to standard treatments experienced significant disease clearance after 25 months of systemic photodynamic therapy, marking the first documented use of this therapy for this condition.

This study observed that mercury-lamp irradiation may cause cleavage of disulfide bonds in keratins of white hair, leading to the formation of thiols in laboratory settings.

This study observed a higher incidence of telogen effluvium from July to October, suggesting a summer-related effect in populations above the Tropic of Cancer, possibly influenced by ultraviolet light.

In this study, SNPs in genes affecting skin pigmentation were linked to each skin type's unique response to environmental stress, suggesting potential for personalized skin care products.

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.