research Modeling of solar UV-induced photodamage on the hair follicles in human skin organoids
Sunlight exposure damages hair follicles, but certain stem cell-derived particles can reduce this damage and help with hair regeneration.
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research 1272 p21Waf1/Cip1 is differentially expressed in epidermal versus follicular melanocytes and melanoma cells and is phenotypically regulated by UVB-mediated apoptosis
The protein p21 is more abundant in normal skin cells than in melanoma cells and may help protect against melanoma, with UVB light affecting its levels.
research 780 Novel mechanism of UVB-mediated pigmentation through the axis of ATP-P2X7
Scientists discovered a new way UVB light increases skin pigmentation through the ATP-P2X7 pathway.
research Comparison Treatment of Vitiligo by Co-culture of Melanocytes Derived from Hair Follicle with Adipose-Derived Stem Cells with and without NB-UVB
Treating vitiligo with stem cells and melanocytes from hair, along with UVB light, works better than without the light.
research All sites but skin cancer incidences analyzed worldwide by sex, age, and skin type over time (1955-2007), advancing age, and UVB dose reveals important carcinogenic drivers
Cancer rates are increasing in developed countries, with estrogen, aging, low vitamin D3, and HPV infection as common causes.
research Flexural Agminated Eruptive Nevi in Langerhans Cell Histiocytosis
Sunlight exposure improved a patient's skin condition, and there may be a link between a certain disease and skin growths; a leukemia treatment caused changes in hair color and growth.
research UV damage of the hair.
Excessive sun exposure damages hair, causing protein loss and color changes.
research Quantitative Analysis of Hair Luster in a Novel Ultraviolet-Irradiated Mouse Model
UV exposure reduced hair shine in mice, but minoxidil helped restore it.
research Critical Role of ATP-P2X7 Axis in UV-Induced Melanogenesis
ATP increases melanin production in skin after UV exposure, with the P2X7 receptor being crucial for this process.
research Heterogeneity of Polymorphous Light Eruption: A Study of 105 Patients
The study found that polymorphous light eruption varies among patients and can be distinguished from benign summer light eruption by the time it takes for symptoms to appear after sun exposure.
research Ultraviolet B irradiation increases the expression of inflammatory cytokines in cultured sebocytes
UV-B light increases inflammation-related substances in acne-related skin cells.
research Preparation and In Vitro Evaluation of Protective Effects of Quercetin‐Loaded Solid Lipid Nanoparticles on Human Hair Against UV ‐B Radiation
Quercetin-loaded nanoparticles protect human hair from UV-B damage.
research Chemical and photo-oxidative hair damage studied by dye diffusion and electrophoresis.
Chemical treatments and light exposure damage hair proteins.
research Increased calcidiol level in redhaired people: Could redheadedness be an adaptation to temperate climate?
Redheaded people have higher levels of a vitamin D precursor, suggesting red hair may be an adaptation for better vitamin D synthesis in areas with less sunlight.
research Targeted Overexpression of the Angiogenesis Inhibitor Thrombospondin-1 in the Epidermis of Transgenic Mice Prevents Ultraviolet-B-Induced Angiogenesis and Cutaneous Photo-Damage
Overexpressing thrombospondin-1 in mice skin prevents UVB-induced skin damage.
research A Definitive Role of Ornithine Decarboxylase in Photocarcinogenesis
Inhibiting ODC can prevent UV-induced skin cancer.
research Profiling the Response of Human Hair Follicles to Ultraviolet Radiation
UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.
research Photoprotective and immunoregulatory capacity of ginsenoside Rg1 in chronic ultraviolet B-irradiated BALB/c mouse skin
Ginsenoside Rg1 protects mouse skin from UVB damage and helps control inflammation.
research Restoration of Hair Luster via Novel Biomarker COL7A1 by Minoxidil, Caffeine, and Biotin
Minoxidil, caffeine, and biotin can improve hair shine by restoring certain genes.
research 520 The protective effects of Apocynin against ultraviolet B-induced cellular senescence in human keratinocytes
Apocynin may protect skin cells from aging and damage caused by UVB light.
research Efeito da radiação ultravioleta na cor, na perda proteica e nas propriedades mecanicas do cabelo
UV radiation causes significant protein loss and color changes in hair, especially blond hair.
research 6. Phototherapy, Photomedicine, and Pigmentary Disorders
Stopping certain drugs can improve skin conditions, arsenicosis affects over half of a Bangladeshi village, males are more vulnerable, and certain treatments are effective for warts, acne, and psoriasis. Smoking and drinking are linked to psoriasis in men, a cream helps with a type of skin cancer, and low iron levels don't directly cause chronic hair loss in women.
research ADSCs inhibit photoaging‐ and photocarcinogenesis‐related inflammatory responses and extracellular matrix degradation
ADSCs help protect skin from UV damage and aging.
research Identification of ultraviolet B radiation-induced microRNAs in normal human dermal papilla cells
UVB radiation changes the levels of certain microRNAs in skin cells, which may affect cell survival and hair growth.
research The risk of hydroquinone and sunscreen over-absorption via photodamaged skin is not greater in senescent skin as compared to young skin: Nude mouse as an animal model
Aging and sun damage do not increase the skin's absorption of certain sunscreens and drugs.
research Retinoids and Phototherapy for Psoriasis
Retinoids and narrowband UVB phototherapy are effective for treating psoriasis and can reduce treatment time when used together.
research Effects of ultraviolet B radiation on physicochemical properties of human hair shaft
UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.
research 583 Induction of type 17 collagen decreases ultraviolet b-induced cellular senescence in human htert/ker-ct keratinocytes
Increasing type 17 collagen reduces aging signs in skin cells caused by UV light.
research Skin, Genetic Defects, and Aging
Genetic defects and UV radiation cause skin damage and aging.
research Increased 25(OH)D3 level in redheaded people: Could redheadedness be an adaptation to temperate climate?
Redheaded people may have evolved to efficiently make vitamin D in areas with less sunlight.