Patients with photodamaged skin need guidance in selecting treatment plans that optimize outcomes, minimize downtime, and reduce adverse effects. The gold standard among cosmeceuticals is the topical retinoids, such as tretinoin. A topical formulation of folic acid and creatine appears to be a viable treatment option for the treatment of photodamaged skin. The use of specific topical cosmeceuticals in combination with nonablative photorejuvenation is recommended in choosing modalities that address the concerns of the patient. A combination of intense pulsed light (IPL), low-intensity diode light, and biostimulating drugs has been shown to provide results superior to those of IPL alone for photorejuvenation. Photodynamic therapy (PDT) with 5-aminolevulinic acid (5-ALA) is the treatment of choice for type C photodamage. Low-strength 5-ALA (1 to 2%) applied several times, every 10 to 15 minutes, and incubated for 30 to 60 minutes with 550 to 630 nm, 530 to 1200 nm, or 570 to 1200 nm light activation improved hyperpigmented lesions, skin smoothing, and skin elasticity with high patient satisfaction. The use of 0.5% liposome-encapsulated 5-ALA spraying has been shown to be an alternative to 20% 5-ALA in a cream base in patients undergoing photorejuvenation. Adipose-derived stem cells and their derived secretory factors may have potential as treatments of photodamage.
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http://dx.doi.org/10.1055/s-0029-1243083 | DOI Listing |
Unlabelled: Melanin pigments block genotoxic agents by positioning on the sun-exposed side of human skin keratinocytes' nucleus. How this position is regulated and its role in genome photoprotection remains unknown. By developing a model of human keratinocytes internalizing extracellular melanin into pigment organelles, we show that keratin 5/14 intermediate filaments mechanically control the 3D perinuclear position of pigments, shielding DNA from photodamage.
View Article and Find Full Text PDFAntioxidants (Basel)
December 2024
Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
Mycosporine-glycine (M-Gly), a member of the mycosporine-like amino acid (MAA) family, is known for its potent antioxidant and anti-inflammatory properties. However, its in vivo efficacy in alleviating acute skin photodamage, primarily caused by oxidative stress, has not been well explored. In this investigation, 30 female ICR mice were divided into four groups: a control group and three Ultraviolet B (UVB)-exposed groups treated with saline or M-Gly via intraperitoneal injection for 30 days.
View Article and Find Full Text PDFAesthetic Plast Surg
January 2025
Division of Plastic Surgery, Department of Surgery, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
Introduction: Hand rejuvenation addresses aging-related changes such as subcutaneous fat loss, skin degradation, and photodamage. Autologous fat transfer (AFT) has emerged as a promising treatment, offering durable volume augmentation and regenerative effects. This study aims to systematically review the evidence on the techniques, outcomes, and complications of AFT for hand rejuvenation.
View Article and Find Full Text PDFLasers Surg Med
January 2025
Main Line Center for Laser Surgery, Ardmore, Pennsylvania, USA.
Background: Poikiloderma of Civatte is a benign skin condition characterized by reticulate erythema and hyperpigmentation in sun-exposed areas, predominantly on the neck, cheeks, and chest. Chronic UV exposure leads to vascular proliferation and red cell extravasation resulting in hemosiderin and melanin deposition. While many light-based modalities have been utilized to treat the disorder, the significant vascularity makes it ideally suited for treatment with vascular lasers.
View Article and Find Full Text PDFJ Photochem Photobiol B
February 2025
HBN Research Institute and Biological Laboratory, Shenzhen Hujia Technology Co., Ltd., 518000 Shenzhen, Guangdong, PR China. Electronic address:
Ultraviolet radiation (UV) causes certain side effects to the skin, and their accumulation to a certain extent can lead to accelerated aging of the skin. Recent studies suggest that α-arbutin may be useful in various disorders such as hyperpigmentation disorders, wound healing, and antioxidant activity. However, the role of α-arbutin in skin photodamage is unclear.
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